Chlorides, Environmental Regulation & Management in NE Illinois Stephen McCracken - DRSCW

22
Chlorides, Environmental Regulation & Management in NE Illinois Stephen McCracken - DRSCW

description

Chlorides, Environmental Regulation & Management in NE Illinois Stephen McCracken - DRSCW. Village of Addison Arcadis US, Inc. Village of Arlington Heights Baxter & Woodman, Inc. Village of Bartlett Village of Bensenville Village of Bloomingdale Village of Bolingbrook CDM Smith - PowerPoint PPT Presentation

Transcript of Chlorides, Environmental Regulation & Management in NE Illinois Stephen McCracken - DRSCW

Page 1: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

 Chlorides, Environmental Regulation & Management in NE Illinois

Stephen McCracken - DRSCW

Page 2: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

• Village of Addison• Arcadis US, Inc.• Village of Arlington Heights• Baxter & Woodman, Inc.• Village of Bartlett• Village of Bensenville• Village of Bloomingdale• Village of Bolingbrook• CDM Smith• Village of Carol Stream• Christopher B. Burke Engineering• Village of Clarendon Hills• College of DuPage• Village of Downers Grove• Downers Grove Sanitary District• DuPage County• DuPage County Health Department• City of Elmhurst• Elmhurst-Chicago Stone Company• Engineering Resource Associates

• Forest Preserve District of DuPage County

• Geosyntec Consultants• Glenbard Wastewater Authority• Village of Glen Ellyn• Village of Glendale Heights• HDR, Inc.• HR Green, Inc.• Village of Hanover Park• Hey and Associates, Inc. • Ross A. Hill• Village of Hinsdale• Village of Hoffman Estates• Huff & Huff, Inc. • Illinois Department of Transportation• Illinois State Toll Highway Authority• Inter-Fluve, Inc.• Village of Itasca• Village of Lisle• Village of Lombard• Metropolitan Water Reclamation District of Greater Chicago

• City of Naperville

• City of Oakbrook Terrace• Prairie Rivers Network• RJN Group, Inc.• Robinson Engineering, Ltd.• Village of Roselle• Salt Creek Sanitary District• Salt Creek Watershed Network• Village of Schaumburg• Sierra Club, River Prairie Group• Strand Associates, Inc.• Suburban Laboratories, Inc.• The Conservation Foundation• The Morton Arboretum• V3 Companies• Village of Villa Park• Walter E. Deuchler Associates• City of Warrenville• WellSpring Environmental Products• City of West Chicago• Village of Westmont• City of Wheaton• Wheaton Sanitary District• City of Wood Dale• Village of Woodridge• York Township Highway Department

Page 3: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Project Area lies in            Cook and DuPage Counties (NE Illinois) 

DRSCW Project Area

Approximately 360 square miles of watershed 

Three  waterways (100 miles of main stem stream)

55 municipal entities

156 MGD of effluent (based on DAF) from 25 POTW operators

Urban to suburban with 48.7% being classified as residential, 24.7% as non-residential urban and 26.6% as open space, including water

Approved TMDLs for DO and chloride on several reaches 

Page 4: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

What is a Total Maximum Daily Load ?

• A TMDL is the maximum amount of a pollutant that a water body can receive while meeting water quality standards for its designated use.

• A chloride TMDL should:1.  Estimate chloride loads from all sources 2. Determine the capacity of the water bodies to 

contain that loading without violating the standards, 3. Develop an implementation plan to reduce chloride 

loads in order to meet the water quality standards.

Page 5: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Water Quality Standards 

Illinois State Standard -  Chlorides (total) - 500 mg/l

 

Parameter National Criteria Chronic (mg/l) Acute (mg/l)

Chloride (total)* 230 860 

National Aquatic Life Criteria for Chloride (Federal) 

Iowa State Standard  Chronic (mg/l) Acute(mg/l)

Chloride (total)*  389 629 

*Based on given concentrations of sulphate and hardnessFederal value under review 

 

Page 6: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

TMDL Statusin DRSCW Area 

LegendStreams Chloride TMDL Segments

Streams Assessed

Streams Non Assessed

DRSCW_Watersheds¯ 0 3 61.5 Miles

Page 7: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

State Water Quality Data for developing TMDLs  

Page 8: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

10/14 11/3 11/23 12/13 1/2 1/22 2/11 3/30

100

200

300

400

500

600

West Branch, Hanover Park, Chloride ConcentrationWinter 2008, 2009, 2010 Comparison

Winter 2007-08

Winter 2008-09

Winter 2009-10

500 mg/L Chloride Standard

Date

Chlo

ride

Conc

entr

ation

(mg/

L)

Page 9: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Program Goals

• IEPA TMDL recommended chloride load reductions– East Branch DuPage River - 33% reduction– West Branch DuPage River - 35% reduction– Salt Creek - 14% reduction

• DRSCW / local agency data comparison:Salt Creek East Branch West Branch Total

TMDL Target,Tons of Cl-/yr 13,300 5,200 13,700 32,200

TMDL Baseline,Tons of Cl-/yr 15,500 7,800 21,100 44,400

DRSCW Baseline,Tons of Cl-/yr 32,600 16,900 21,200 70,700

Page 10: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Activities Salt Reduction Steps1)      Driver training2)      Salt spreader calibration3)      Develop appropriate application rates4)      Pre-wet de-icer5)      Equipment updates            Speed servo controls

On-board pre-wetComputer controls

6)      Coordinate salt application during plowing7)      Control salt spread width8)      Prioritize road system9)      Anti-Ice

Page 11: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW
Page 12: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW
Page 13: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Survey Results 2007-2012 Alternative Practices

Page 14: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Chloride Facts• Water quality standard is 500 mg/L• 1 tsp of salt contaminates 5 gallons of water to a chronic threshold (long term adverse affect) 

• 1 tablespoon of salt contaminates 5 gallons of water to an acute threshold (immediate adverse impact)

• 50 lbs salt will contaminate 10,000 gallons of water• Chlorides do not biodegrade • No deicers are “good” for water quality - all have an impact– Labeling caution: packages may boast “environmentally friendly” but all have an impact   

Page 15: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Elgin O’Hare Western Access Project Details– 25 miles of Mainline Improvements

– 16 Service Interchanges

– 4 System  Interchanges

– 16 miles of Arterial Improvements

– Provisions for Transit and Bicycle/ Pedestrian Facilities

Page 16: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Salt Creek

West Branch DuPage River 

•   Salt Creek and West Branch have been under a chloride TMDL since 2004

•    Chlorides indentified as a priority impairment to aquatic life in 2010 by locally funded causal analysis

•   Local agencies have been working aggressively to lower chlorides from winter deicing operations since before 2007¯

0 2 4 6 81Miles

EOWA And DRSCW Area Map 

LegendEOWA_Preferred_Alternative_Option A

Aquatic Life Attainment

Full

Non

Partial

Water Ways

DRSCW_Watersheds

Page 17: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Concept  Two steps to reach “no net increase”

• Tollway would rationalize current practices (estimated reduction of 20%)

• Remaining increase in loading would be offset by reductions in loading from communities neighboring EOWA (Tier 1 communities)– Additionally partners agreed to offset at a minimum ratio of 1-1.25 so target 1,853 tons

Page 18: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

New N.H. certification program aims to reduce road salt use during winter storms - Thursday, July 4, 2013 

• Interstate 93 in southern New Hampshire undergoing from four to eight lanes

•Federal approval included condition that the high levels of chloride in four nearby streams be reduced

•The state DOT and municipal road crews have already reduced their use of road salt. But, Williams said, in some areas private salt applicators are responsible for up to half of the chloride runoff into nearby watersheds.

Page 19: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Questions ?

Page 20: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Problem Analysis 

Salt Application Summary for Elgin O'Hare Western Access Project Limits

Estimated Annual Salt Application Totals

Project StageLane

miles aSalt Applied,

ton/yr b

Increase from Existing

Condition Ton/yr

Existing (Baseline) Condition 159 3,959 N/AInitial Construction Phase (ICP) 264 7,847 3,888DRSCW Watersheds 1,482

aLane miles include arterial/collector and freeway lane miles located within   the project limits

bConsiders two different salt application rates depending on the roadway class. Arterial/collector roads areloaded at 14 ton/lane mile/year.  Freeways are loaded at 39.7 ton/lane mile/ year.

Page 21: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Project Area and Tier 1 Municipalities

LegendEOWA_Preferred_Alternative_Option A

Water Ways

DRSCW_Watersheds

Schaumburg

Elmhurst

ItascaRoselle

Elk Grove Village

Wood DaleBensenville

Hanover Park

Project Area and Tier 1 Municipalities

LegendEOWA_Preferred_Alternative_Option A

Water Ways

DRSCW Watershed Boundary ¯

Page 22: Chlorides, Environmental Regulation & Management  in NE Illinois Stephen McCracken - DRSCW

Evaluation  

  - Agency Baselines being set currently 

- Documentation of training and implementation 

- In-stream monitoring for impacted waterways