Project 1007 - Progress Update · Project 1007 – Progress Update. 1/24/2020 2 Agenda. 3 • As...
Transcript of Project 1007 - Progress Update · Project 1007 – Progress Update. 1/24/2020 2 Agenda. 3 • As...
Rebecca Higgins PG | MPCA
Amanda Lanning and Marie De Los Santos | AECOM
January 14 2020
Project 1007 ndash Progress Update
21242020
Agenda
3
bull As part of the 3M Agreement and Order the MPCA is conducting ldquoa source assessment and feasibility study regarding the role of the Valley Branch Water Districtrsquos project known as Project 1007 in the conveyance of PFCs in the environmentrdquo
3M Settlement Language
4
Map
PFOS ndash East Metro PFAS Area ndash North of I-94
6
Focused Investigation Summer 2020 - 2021
Beta Phase Investigation
Fall 2019 ndash Summer 2020
Baseline Sampling Event
Fall 2019
Investigation Progress
Project 1007
A Complex Problem
Surface Water Flow
Ground water Flow
Complicated Geology
Numerous Surface Water
Bodies
Conveyance Infrastructures
Variable Precipitation
RatesMultiple PFAS
Compounds
PFAS ndash The Forever
Chemical
Potential Multiple
PFAS Sources
Project Area Size
High Infiltration
Areas
Depth of Impacted Aquifers
What Do We Need to Consider
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
21242020
Agenda
3
bull As part of the 3M Agreement and Order the MPCA is conducting ldquoa source assessment and feasibility study regarding the role of the Valley Branch Water Districtrsquos project known as Project 1007 in the conveyance of PFCs in the environmentrdquo
3M Settlement Language
4
Map
PFOS ndash East Metro PFAS Area ndash North of I-94
6
Focused Investigation Summer 2020 - 2021
Beta Phase Investigation
Fall 2019 ndash Summer 2020
Baseline Sampling Event
Fall 2019
Investigation Progress
Project 1007
A Complex Problem
Surface Water Flow
Ground water Flow
Complicated Geology
Numerous Surface Water
Bodies
Conveyance Infrastructures
Variable Precipitation
RatesMultiple PFAS
Compounds
PFAS ndash The Forever
Chemical
Potential Multiple
PFAS Sources
Project Area Size
High Infiltration
Areas
Depth of Impacted Aquifers
What Do We Need to Consider
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
3
bull As part of the 3M Agreement and Order the MPCA is conducting ldquoa source assessment and feasibility study regarding the role of the Valley Branch Water Districtrsquos project known as Project 1007 in the conveyance of PFCs in the environmentrdquo
3M Settlement Language
4
Map
PFOS ndash East Metro PFAS Area ndash North of I-94
6
Focused Investigation Summer 2020 - 2021
Beta Phase Investigation
Fall 2019 ndash Summer 2020
Baseline Sampling Event
Fall 2019
Investigation Progress
Project 1007
A Complex Problem
Surface Water Flow
Ground water Flow
Complicated Geology
Numerous Surface Water
Bodies
Conveyance Infrastructures
Variable Precipitation
RatesMultiple PFAS
Compounds
PFAS ndash The Forever
Chemical
Potential Multiple
PFAS Sources
Project Area Size
High Infiltration
Areas
Depth of Impacted Aquifers
What Do We Need to Consider
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
4
Map
PFOS ndash East Metro PFAS Area ndash North of I-94
6
Focused Investigation Summer 2020 - 2021
Beta Phase Investigation
Fall 2019 ndash Summer 2020
Baseline Sampling Event
Fall 2019
Investigation Progress
Project 1007
A Complex Problem
Surface Water Flow
Ground water Flow
Complicated Geology
Numerous Surface Water
Bodies
Conveyance Infrastructures
Variable Precipitation
RatesMultiple PFAS
Compounds
PFAS ndash The Forever
Chemical
Potential Multiple
PFAS Sources
Project Area Size
High Infiltration
Areas
Depth of Impacted Aquifers
What Do We Need to Consider
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
PFOS ndash East Metro PFAS Area ndash North of I-94
6
Focused Investigation Summer 2020 - 2021
Beta Phase Investigation
Fall 2019 ndash Summer 2020
Baseline Sampling Event
Fall 2019
Investigation Progress
Project 1007
A Complex Problem
Surface Water Flow
Ground water Flow
Complicated Geology
Numerous Surface Water
Bodies
Conveyance Infrastructures
Variable Precipitation
RatesMultiple PFAS
Compounds
PFAS ndash The Forever
Chemical
Potential Multiple
PFAS Sources
Project Area Size
High Infiltration
Areas
Depth of Impacted Aquifers
What Do We Need to Consider
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
6
Focused Investigation Summer 2020 - 2021
Beta Phase Investigation
Fall 2019 ndash Summer 2020
Baseline Sampling Event
Fall 2019
Investigation Progress
Project 1007
A Complex Problem
Surface Water Flow
Ground water Flow
Complicated Geology
Numerous Surface Water
Bodies
Conveyance Infrastructures
Variable Precipitation
RatesMultiple PFAS
Compounds
PFAS ndash The Forever
Chemical
Potential Multiple
PFAS Sources
Project Area Size
High Infiltration
Areas
Depth of Impacted Aquifers
What Do We Need to Consider
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Project 1007
A Complex Problem
Surface Water Flow
Ground water Flow
Complicated Geology
Numerous Surface Water
Bodies
Conveyance Infrastructures
Variable Precipitation
RatesMultiple PFAS
Compounds
PFAS ndash The Forever
Chemical
Potential Multiple
PFAS Sources
Project Area Size
High Infiltration
Areas
Depth of Impacted Aquifers
What Do We Need to Consider
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
14 mile Corridor
Project 1007 | A Complex Problem
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Variable Precipitation Rates
1_Project 1007 | A Complex Problem
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
ldquoLeakyrdquo LakesLosing Streams
2_Project 1007 | A Complex Problem
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Large and Deep Lakes
3_Project 1007 | A Complex Problem
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Pre-Project 1007 Surface Water Flow Paths
4_Project 1007 | A Complex Problem
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Project 1007 Conveyance Structures Influence Surface Water Flow Paths
5_Project 1007 | A Complex Problem
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Regional Groundwater Divide
6_Project 1007 | A Complex Problem
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Complex Geology - Fractured Bedrock Regional Faults Bedrock Valley
7_Project 1007 | A Complex Problem
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Multiple Deep Bedrock Aquifers
XX
X
8_Project 1007 | A Complex Problem
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
14 mile CorridorVariable Precipitation Rates
ldquoLeakyrdquo LakesLarge and Deep LakesLosing Streams
Pre-Project 1007 Surface Water Flow PathsProject 1007 Conveyance Structures Influence Surface Water Flow PathsComplex Geology - Fractured Bedrock Regional Faults Bedrock ValleyRegional Groundwater DivideMultiple Deep Bedrock Aquifers
XX
X
9_Project 1007 | A Complex Problem
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
18
PROJECT 1007 PHASED INVESTIGATION APPROACH
VAP = Vertical Aquifer Profiling
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
19
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
201242020
Lake Elmo
Beta Phase Drilling Locations
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
211242020
Variable Surficial Soils
Highly Fractured Zone ndash Leaky
Confining Layer
Narrow Bedrock Valley
Bedrock FindingsPreferential Pathways
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Beta Phase InvestigationMethods of Investigation
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Natural Gamma LogConfirms top and bottom of bedrock formations
Caliper LogMeasures borehole diameter
Electro-Magnetic FlowmeterMeasures ambient vertical flow speed
Multi-Parameter E-LogMeasures fluidsingle pointnormal resistivity and temp
Changes in diameter flow and temperature can all serve to indicate significant fractures
Video LogDirect visual of borehole sidewalls
Confirms top and bottom of bedrock formations with more precise depths
Shows fractures and flow direction
High Resolution Data = Better Understanding of PFAS Migration
Beta Investigation Borehole Video and Geophysical Tools
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
bull Groundwater and soil samples in surficial glacial units while drilling
bull Sampling depth intervals based on soil cuttings from the adjacent deeper well
bull Groundwater samples collected at
bull Top of the water table
bull Intervals of finer-grained and coarser-grained soils
bull Immediately above first bedrock formation
bull Soil samples collected at
bull Intervals coincident with groundwater samples
bull Zone immediately above water table and first bedrock
bull Any potential confining layers
Beta Investigation Sample CollectionGroundwater and Soil Strategy
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Baseline Sampling Analytical Results
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
1242020 0
05
1
15
2
25
3
35
4
RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC17 RC18
PFO
S Co
ncen
trat
ion
(ppb
)
Sample Location ID
Surface Water PFOS ResultsRaleigh Creek Area
Reported in Parts Per Billion (ppb)
Water Quality Criteria protect
people from eating
contaminated fish
Bde Maka Ska and Mississippi River Pool 2 Water Quality Criteria
0011-0014 ppb
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
30
Approximately 50 um (005mm) thick
An interface of gaseous exchange High carbon content
Documented reservoir of surface-active chemicals including fatty acids surfactants PFAS and other compounds
Photo Credit McMurdo 2008
Surface Micro Layer (SML)
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
311242020
PFAS-Containing Foam Appearance
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
32
1_PFAS-Containing Foam Appearance
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
331242020
PFAS-Containing Foam Locations
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
34
Sample ID Date PFBA PFBS PFHXS PFOA PFOS
Groundwater - ODSPre Pump-Out Start-Up 3102005 --- 735 227 73767 13367
Foam - RC7 081219 lt31 lt08 lt08 66 4009
Foam - RC7081419 lt32 lt8 lt8 17540 13800
Foam - RC12081419 lt32 lt8 lt8 1622 10500
Foam - RC17081419 lt8 lt2 lt2 375 2751
Foam - RC17A081419 lt32 lt08 lt08 50 59530
Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data
(Units in PPB)
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
35
River with previously low level PFAS
PFAS foam in a drainage ditch
PFAS foam on a large creek
PFAS foam on a large creek
Wisconsinrsquos PFAS Foam Experience
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
36
Frozen foam islands
Infrared Camera imaging for source area seeps
Frozen Foam
Dock on a lake with nearby sources
Michiganrsquos PFAS Foam Experience
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
PFAS Risk Assessment Values
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
381142020
bull People and pets should avoid contact with foam
bull Wash skinfur that has come into contact with suspected PFAS-containing foam with soap and water
bull Surface water concentrations of PFAS are much lower indicating water is safe for recreation
bull Additional data will be collected
bull MDH will conduct additional recreational risk assessment to verify these conclusions
Human Health Concerns
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
FoamSurface Water
Sediment
Non-Drinking Water Health Risk Values
Soil
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
40
Investigating
Communicating
Coordinating
bull Across programsAgencies
bull Appropriate Response Actions
Evaluating
bull Oakdale Disposal Controls
bull Health and Environmental Risks
bull Drinking Water Groundwater Ecosystem Receptors
NEXT STEPS
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
411242020
Investigation continues through 2021
Complex problem ndash no easy fix to forever chemicals
PFAS-containing foam can be found in PFAS-impacted surface water
People and pets should avoid foam
What has been completed in 1 year Road Map for Comprehensive Investigation First Phase Complete Second Phase In-Progress
Conclusions
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-
1242020 42
Rebecca Higgins PG MPCARebeccaHigginsstatemnus
Amanda Lanning and Marie De Los Santos AECOM
Thank you
- Project 1007 ndash Progress Update
- Agenda
- 3M Settlement Language
- Map
- PFOS ndash East Metro PFAS Area ndash North of I-94
- Investigation Progress
- What Do We Need to Consider
- Project 1007 | A Complex Problem
- 1_Project 1007 | A Complex Problem
- 2_Project 1007 | A Complex Problem
- 3_Project 1007 | A Complex Problem
- 4_Project 1007 | A Complex Problem
- 5_Project 1007 | A Complex Problem
- 6_Project 1007 | A Complex Problem
- 7_Project 1007 | A Complex Problem
- 8_Project 1007 | A Complex Problem
- 9_Project 1007 | A Complex Problem
- PROJECT 1007 PHASED INVESTIGATION APPROACH
- Drone Footage
- Beta Phase Drilling Locations
- Bedrock FindingsPreferential Pathways
- Beta Phase InvestigationMethods of Investigation
- Beta Investigation Borehole Video and Geophysical Tools
- Beta Investigation Sample CollectionGroundwater and Soil Strategy
- Baseline Sampling Analytical Results
- Project 1007 Overview Map Sampling Areas and Sample Counts - Baseline Investigation
- Surface Water PFOS ResultsRaleigh Creek Area Reported in Parts Per Billion (ppb)
- PFOS Sampling Graph_1
- PFOS Sampling Graph_2
- Surface Micro Layer (SML)
- PFAS-Containing Foam Appearance
- 1_PFAS-Containing Foam Appearance
- Map_1
- Comparison of Foam Results to Oakdale Disposal Site Historic Monitoring Well Data (Units in PPB)
- Wisconsinrsquos PFAS Foam Experience
- Michiganrsquos PFAS Foam Experience
- PFAS Risk Assessment Values
- Human Health Concerns
- Non-Drinking Water Health Risk Values
- NEXT STEPS
- Conclusions
- Thank you
-