FORD NEWPORT BEACH OPEN HOUSE · Site History 1957-1993 • Ford operated an aeronutronics facility...

FORD NEWPORT BEACH OPEN HOUSE

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BACKGROUND AND SITE HISTORY

SITE HISTORY & CLEANUP

Site History 1957-1993 • Ford operated an aeronutronics facility from 1957 to 1993

• Operations included the research, engineering and manufacture of aerospace systems – Missile guidance components, rocket motors and computer hardware

• Volatile organic compounds (VOCs) were used to clean metal parts – Trichloroethylene (TCE) and tetrachloroethylene (PCE)

Facility was closed and demolished in 1993

Ford Aeronutronic provided major support for the development of Project Space Track (1957-1961)

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Site Cleanup 1993-1996 • Oversight provided by Santa Ana Regional

Water Quality Control Board (Water Board)

• Cleanup in accordance with regulatory standards established in the 1990s

• Soil and groundwater remediation included:

– Bioremediation – Excavation and disposal of soils – Groundwater and soil vapor

treatment systems

• In 1996/97, the Water Board and Orange County Health Care Agency determined no further remediation was required for the main area for the anticipated land reuse

• Site was rezoned and redeveloped

WHAT ARE VOCs?

VOCs: Volatile Organic Compounds (VOCs) get their name from their ability to pass easily from a liquid into a gaseous state. VOCs, which include TCE and PCE, are commonly used in industry as well as in the home. Recent research has shown that VOCs in soil and groundwater can evaporate as vapors, and can collect under buildings potentially afecting the quality of indoor air. This process is called vapor intrusion.

TCE: Trichloroethylene (TCE) is used as a solvent for degreasing metal parts during the manufacture of a variety of products. It can also be found in consumer products, including some wood fnishes, adhesives, paint removers, and stain removers. Due to its widespread use, very low levels of TCE are common in the air of homes and businesses and in outdoor air in urban areas.

PCE: Tetrachloroethylene (PCE) is a chemical compound that is commonly used in clothes dry cleaning and metal degreasing. It is also used to make other chemicals and can be found in some consumer products.

Air fresheners (including electric varieties and room sprays)

Scented candles

Perfume/cologne

Beauty products (e.g., hairspray, hair dye, aerosolized products)

Pepper spray

Paints, varnishes and lacquers

Nail polish and nail polish removers

Paint thinner

Paint, varnish, rust and lacquer removers

Shoe polish

Adhesives/glues (e.g., wood glue, craft glue, model glue, carpet glue)

Markers

Cleaning agents (e.g., bleach, ammonia)

Rubber cement and epoxy adhesives

Toilet disinfectant

Moth balls

Gasoline

Automobile exhaust

Cigarette smoke

Cleaning solvent (e.g., carburetor/car part cleaner)

Petroleum products

Carpet/rug/upholstery cleaners

Plastic foam insulation

Refrigerant

Printing inks

Insecticides, fungicides and pesticides

Flame retardant fabrics

Plastic products

Polyresin molded decorations (particularly from China)

Soil or space fumigant

Building materials (e.g., particle board)

White correction fuid (for typewriters and print)

Furniture polish and foor polish

Residential wood combustion

Fiberglass

Dry cleaning chemicals

Metal degreasers and metal cleaners

Drain cleaners

Source: California Water Board

Common Household Sources of Volatile Organic Compounds (VOCs)

ONGOING MONITORING

Ongoing Monitoring 1996-2018 • As a condition of regulatory approval, Water

Board required Ford to continue to monitor groundwater for VOCs – Groundwater has been regularly

monitored since 1996

• Soil gas investigation work conducted in 2006, 2008 and 2012 found TCE and PCE below acceptable health risk levels at the time – Soil gas samples (collected from tiny air pockets between soil grains)

collected periodically

• In 2014, the USEPA published a memo for TCE, specifc to sensitive receptors

• In 2016, the Water Board’s environmental screening levels were updated and made more stringent

• In June of 2018, TCE and PCE were detected in soil gas above the current environmental screening levels at some areas of the site

• Based on the results of soil gas sampling in June of 2018, Ford initiated a soil vapor and vapor intrusion investigation

Mobile Laboratory

TIMELINE

1957 1993 1996 2016 2017 2018

Advances in science and changes in regulatory screening levels:

• More sensitive instrumentation

• Lower laboratory detection limits

• Identifcation of the potential for vapor intrusion

• Improved investigation techniques

Ford Aeronutronic 0perations

Site demolished, environmental investigation, and remediation

Water Board requires ongoing groundwater monitoring

Soil and groundwater remediation complete for the main area, site rezoned and redeveloped

Water Board updates

Environmental Screening

Levels (ESLs)

Most recent Water Board update to Environmental Screening Levels

Ford initiates soil gas and vapor intrusion investigation

Water Board requests additional investigation activities TCE and PCE

detected above updated Environmental Screening Levels

2014

Water Board requests compilation and re-evaluation of all existing data (Conceptual Site Model)

USEPA publishes a memo for TCE, specifc to sensitive receptors

CURRENT INVESTIGATIONS

SITE MAP

North Area

Big Canyon Arroyo

(BCA Area)

Former ATC Area

Former FordAeronutronic Facility

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Explanation

North Area and Big Canyon Arroyo Areainvestigation boundaries

Location of former facility buildings

Former facility boundary

Base map from NAIP, Orange County, CA, dated 2009.

861739717.02.3B

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SITE VICINITY MAPFormer Ford Aeronutronic Property

Newport Beach, California

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Parcel Identifiers1 - Newport North Apartment Homes2 - Newport North Townhomes Association3 - Calty Design Research, Inc. & Toyota Motors4 - U.S. Post Office & Way Basics5 - Mini U Storage - Newport 2 & Pensky Truck Rental6 - Liberty Baptist Church & Newport Christian School7 - Powerstation8 - Mini U Storage - Newport 19 - Newport North Shopping Centre10 - Bayridge Park Homeowners Association11 - Belcourt Terrace Homeowners Association12 - Belcourt Master Community Association13 - One Ford Road Community Association14 - Belcourt Park Homeowners Association21 - Irvine Company Property22 - Belcourt Hill Homeowners Association

Chemical of Concern

Current Residential Soil Gas SL (μg/m3)

Current Commercial Soil Gas SL (μg/m3)

TCE 240 3,000PCE 230 2,000cis-1,2-DCE 4,200 35000trans-1,2-DCE 42,000 350,0001,2-DCA 55 4701,1-DCE 37,000 310,0001,1-DCA 900 7,7001,1,1-TCA 500,000 4,400,000Vinyl Chloride 4.8 160

Explanation

Soil Gas Probes

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Isoconcentration Line, Dashed WhereInferred

Residential TCE isoconcentrationline

Commercial TCEisoconcentration line

Residential PCEisoconcentration line

Proposed Indoor Sampling Areas

Commercial area proposedindoor air sampling

Residential area proposed indoorair sampling

Boundary Lines

North Area investigationboundary

Former facility boundary

Former ATC

Parcel boundary and numberdesignation

Approximate axis of historicalgroundwater plume

Base map from NAIP, Orange County, CA, dated 2009.

By:

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Project No.

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NORTH AREASOIL GAS PROBE INSTALLATIONS

RESIDENTIAL & COMMERCIAL INDOOR AIR SAMPLINGFormer Ford Aeronutronic Property

Newport Beach, California8618397107.02.3B

What does the blue shading represent? Commercial areas for proposed indoor air sampling

What do the diferent colored dashed lines represent? The green contour lines indicate the approximate area of concentrations above 240 micrograms per cubic meter for TCE Environmental Screening Level

The purple contour lines indicate the approximate area of concentrations 230 micrograms per cubic meter for PCE Environmental Screening Level

What is a soil gas probe? A soil gas probe is a small, cylindrical hole that extends to about 15 feet deep that soil vapor samples are extracted from

What does the green shading represent? Residential areas for proposed indoor air sampling

Information represented on the map is current as of 9/18 and is subject to change as investigations progress

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Explanation Orange County, CA, DATED 2009. Soil Gas Probes Boundary Lines

BIG CANYON ARROYO AREA Big Canyon Arroyo Area Soil gas probe location (installed and sampled) Parcel Identifiers investigation boundary SOIL GAS PROBE INSTALLATIONS 15 - Big Canyon Community Association-Master Association Soil gas probe location (installed/sampling pending) (Big Canyon Country Club Golf Course) & RESIDENTIAL INDOOR AIR SAMPLING Former ATC 16 - Sea Island Community Association Former Ford Aeronutronic Property 17 - Canyon Mesa Community Association

Parcel boundary and number Newport Beach, California 18 - Canyon Lakes Community Association 22 designation 19 - Canyon Crest Community Association Residential proposed indoor air sampling 20 - Canyon Point Community Association By: KLU 22 - Belcourt Hill Homeowners Association

Date: 09/06/2018 Big Canyon Creek 21 21

Information represented on the map is current as of 9/18 and is subject to change as investigations progress

http:8615397107.02.3B

WHAT IS VAPOR INTRUSION AND HOW IS IT INVESTIGATED?

Soil Gas Monitoring Probes (5-15 feet)

Permanent Groundwater Monitoring Well (Average 50 feet)

Residual VOCs in groundwater can move up into soil

Typically from historic uses Chemicals in groundwater can spread by its natural flow

Groundwater Contaminants: measured in micrograms per liter (µg/L)/parts per billion (ppb)

Soil Gases: measured in micrograms per cubic meter (µg/m3)

Indoor Air: measured in micrograms per cubic meter (µg/m3)

Soil gas can pass through cracks in the foundation and gaps where pipes enter the building

SOURCE OF CONTAMINATION MOVED BY GROUNDWATER

WHAT ARE WE STUDYING?

Sand or gravel fill around foundation can be easier for vapor to pass through

BACKFILL PATHWAYS

GETTING THROUGH THE FOUNDATION

Chemicals in soils can move along undergound pipes

PIPE PATHWAYS

Groundwater, Soil Gas and Indoor Air Investigation Areas Groundwater • Groundwater monitoring has been

ongoing since 1996

Soil Gas • As a result of advances in science

and technology, as well as resulting changes in regulatory screening levels, Ford is conducting additional soil gas investigations to determine location and extent of subsurface soil gases

• Subsurface soil gases occur when VOCs pass from groundwater into the soil gas above by volatilization

Vapor Intrusion • There is a potential for soil gas to

move towards the ground surface and potentially impact indoor air

• Ford is conducting indoor air sampling to determine if there are any impacts from subsurface soil gas

INDOOR AIR AND SUB-SLAB SAMPLING PROCESS

Purpose Determine if VOCs (TCE and PCE) in indoor air are above Water Board Environmental Screening Levels

Sampling Process • Indoor Air Samples

– Building survey: pre-sampling questionnaire

– Identifcation of household items that contain VOCs

– Placement of canisters in targeted areas

– Leave canisters for 24-hours to collect air (8-hours for business)

– Return to retrieve canisters

- Process typically takes 2 hours in total

• Sub-slab (directly beneath foundation, typically in garage) or perimeter soil gas samples collected (outside) for correlation with indoor air samples

DRY-CLEANED CLOTHING

TYPE AND AGE OF HEATING/ COOLING

HOUSEHOLD

FURNITURE

SYSTEM CHEMICALS AND CLEANERS

NEW CARPETING

BUILDING MATERIALS

CONDITION OF FOUNDATION AND FLOOR

Indoor Air Testing and VOCs in Household Use Measuring chemicals in indoor air can be tricky because many common household items and materials can afect levels

Carpets, cleaning products and building materials can off-gas chemicals

VAPOR INTRUSION INVESTIGATION PROCESS

1. Volatile chemicals are identifed in the soil, 2. Sample for vapors underground to groundwater, or vapors coming from the soil. determine area of concern. Former Facility

Sites where VOCs were historically Crews drill into the ground to collect soil, used are being re-evaluated Former Facility groundwater, and soil gas samples.

Sampling sites

3. Test for vapor intrusion inside homes and buildings within the area of concern. Area of concern

Former Facility This is the area where testing shows that vapor intrusion may occur in buildings.

Testing beneath the home for vapors is called sub-slab soil gas sampling. It involves drilling small holes in your garage foor to collect soil gas samples from under the building. Indoor air samples are collected as well.

Sampling Area

The sampling areas may grow or shrink based on test results.

4. Take steps to mitigate for vapor intrusion. If testing fnds vapor intrusion is a problem, there are actions that can be taken to quickly address the situation such as sealing cracks in the foundation, installing mobile air purifers, adjusting the heating/ventilation system and in some cases installing a mitigation system to vent vapors from beneath the home.

SOIL GAS

WHAT YOU MAY SEE Subsurface Soil Gas Sampling in Public Areas

Utility Clearance Street Markings Removal of Street Markings Soil Gas Probe Drill Rig Top of Soil Vapor Probe Identifying Utilities after Restoration

Subsurface Soil Gas Sampling - Residential/Commercial

Hand Auger Installing Perimeter Probe Sampling Top of Soil Vapor Probe

Indoor Air and Sub-Slab Sampling

Pre-Sampling Building Survey

Indoor Sampling Canister

Sub-Slab Install (eg. garage)

Sub-Slab Sampling Sub-Slab Patch (eg. garage)

SAMPLING RESULTS

INDOOR AIR SAMPLING RESULTS

• Sample results are provided in about 2 weeks • At a minimum two rounds of sampling are needed

per current Water Board sampling protocol guidance

Status of Access Agreements to date* Residential Indoor Air Sampling Summary to date - TCE • 300 Access Agreements sent • 28 Buildings sampled • 62 Access Agreements signed

– 13 Non-detect – 8 Below Environmental Screening Levels – 7 Above Environmental Screening Levels

and are being evaluated

Potential Mitigation Measures • Seal cracks and openings in foundation

• Mobile air treatment units (temporary)

• Adjust heating and ventilation system parameters

• Install mitigation system beneath foundation to safely vent vapors into the atmosphere

• Continue testing indoor air to confrm efectiveness of mitigation measures

Temporary mobile air treatment unit

* This information is current as of September 21, 2018

INTERPRETING RESULTS/RESIDENTIAL

8 102/20/70: etaD Project 8618397107

NORTH AND BCA AREAS VI EVALUATION STRATEGY RESIDENTIAL PROPERTIES

Former Ford Aeronutronic Property Newport Beach, California

Notes (1) Amec Foster Wheeler, 2017. Revised Addenum to Work Plan for Groundwater Investigation – North Area, Former Ford Aeronutronic Property, Newport Beach, California (2) Source of soil vapor screening levels: February 2016 San Francisco Bay RWQCB ESLs of 240 (final screening level) and 1000 μg/m3 (“Trigger” level and noncancer ESL) for TCE. (3) Indoor air concentrations will be evaluated with respect to the following:

˜ Outdoor air concentrations ˜ Sub-slab and/or crawl space concentrations, if applicable ˜ Presence of preferential pathways indicating possible migration via sewer line ˜ Indoor air screening levels: 0.48 μg/m3 (long-term; U.S. EPA 2018 RSL and 2016 SFRWQCB ESL) and

2 and 6 μg/m3 [short-term; Accelerated and Urgent Response Action Levels, respectively; DTSC 2014 HHRA Note 5: Health-based Indoor Air Screening Criteria for Trichloroethylene (TCE)].

Abbreviations IA = indoor air SV = soil vapor μg/m3 = micrograms per cubic meter VI = vapor intrusion BCA = Big Canyon Arroyo

Deliver factsheets regarding upcoming SV sampling to

residences in the North and BCA Areas

Install and sample SV probes at proposed locations in the North

and BCA Areas(1)

Extent and proximity of delineation around individual homes will be performed on a

building-specific basis

Perform step-out SV sampling where SV concentrations are

>240 μg/m3

Prioritize IA sampling at residences within 30 days

TCE concentration

in IA, evaluated on a per-home basis(3)

Between 2 and 6 μg/m3

Between 0.48 and 2 μg/m3

Perform seasonal SV sampling to confirm

results; if results are

REAL ESTATE

We are fully investigating the environmental issues and prioritizing health and safety. We have no information at this time on property values. We recommend contacting a real estate professional to obtain any further information regarding this or related issues.

NEXT STEPS

NEXT STEPS

Continue with subsurface soil gas investigation in common areas outside and indoor air investigation

Refne study areas based on results of subsurface soil gas investigation

Interim response measures as needed to address indoor air impacts

Develop long-term strategy for subsurface soil gas and/or groundwater

Community Outreach

Open houses to share key information

Fact sheets and results letters issued by mail and email

Website and project information line

CONTACT US

www.FordNBFacts.com 833-949-3673 [email protected]

SIGN-UP FOR INDOOR AIR SAMPLING

SANTA ANA REGIONAL WATER BOARD

AND OFFICE OF ENVIRONMENTAL

HEALTH HAZARD ASSESSMENT

SANTA ANA REGIONAL WATER BOARD ROLE

• Santa Ana Regional Water Quality Control Board (SARWQCB) is one of nine Regional Boards which along with State Water Resources Control Board (SWRCB) are under the umbrella of California Environmental Protection Agency (CalEPA).

• SARWQCB is in charge of issuing permits and enforcing the State policies to protect water quality.

• SARWQCB has jurisdiction over the more populated areas of Orange, Riverside, and San Bernardino Counties (approximately 2,800 square miles), covering a population of approximately 5 million people.

• SARWQCB works with the responsible parties that caused environmental contamination to conduct assessment and remediation of the impacted sites.

• SARWQCB also coordinates and collaborates with public and other stakeholders who may have been afected by contamination.

OFFICE OF ENVIRONMENTAL HEALTH HAZARD ASSESSMENT

• The Ofce of Environmental Health Hazard Assessment (OEHHA) is the lead state agency for the assessment of health risks posed by environmental contaminants and is one of six departments within the California Environmental Protection Agency (CalEPA).

• OEHHA’s mission is to protect human health and the environment through scientifc evaluation of risks posed by hazardous substances.

• OEHHA develops health-protective exposure levels for contaminants in air, water, and soil as guidance for regulatory agencies and the public.

Commercial Indoor Air Decision Flow Chart

Date: 4/17/2018 Figure A2 Project 9615397106

NORTH AND BCA AREAS VI EVALUATION STRATEGY COMMERCIAL PROPERTIES



businesses in the North and BCA Areas


and BCA Areas(1)

Extent and proximity of delineation

around individual commercial buildings will be performed on a



>240 µg/m3(3)

Prioritize IA sampling at commercial properties within 30

days

TCE concentration

in IA, evaluated on a per-building basis(4)

Between 8 and 24 µg/m3

Notes (1) Amec Foster Wheeler, 2017. Revised Addenum to Work Plan for Groundwater Investigation – North Area,

Former Ford Aeronutronic Property, Newport Beach, California (2) Source of soil vapor screening levels: February 2016 San Francisco Bay RWQCB ESLs of 3,000 (final

screening level) and 8,000 µg/m3 (“Trigger Level”) for TCE. (3) The Santa Ana Regional Water Quality Control Board recommended delineating to the residential value of 240

µg/m3 (instead of 3,000 µg/m3) because of mixed land use. (4) Indoor air concentrations will be evaluated with respect to the following:

• Outdoor air concentrations • Sub-slab and/or crawl space concentrations, if applicable • Presence of preferential pathways indicating possible migration via sewer line • Indoor air screening levels: 3 μg/m3 (long-term; U.S. EPA 2017 RSL and 2016 SFRWQCB ESL) and 8

and 24 μg/m3 [short-term; Accelerated and Urgent Response Action Levels, respectively; DTSC 2014 HHRA Note 5: Health-based Indoor Air Screening Criteria for Trichloroethylene (TCE)].


Abbreviations IA = indoor air SV = soil vapor µg/m3 = micrograms per cubic meter VI = vapor intrusion BCA = Big Canyon Arroyo

Perform seasonal SV sampling to

confirm results; if results are 24 µg/m3

Between 3,000 and 8,000 µg/m3

Residential Indoor Air Decision Flow Chart

Date: 4/17/2018 Figure A1 Project 9615397106

NORTH AND BCA AREAS VI EVALUATION STRATEGY RESIDENTIAL PROPERTIES



residences in the North and BCA Areas


and BCA Areas(1)

Extent and proximity of delineation around individual homes will be performed on a



>240 µg/m3

Prioritize IA sampling at residences within 30 days

TCE concentration

in IA, evaluated on a per-home basis(3)


Notes (1) Amec Foster Wheeler, 2017. Revised Addenum to Work Plan for Groundwater Investigation – North Area, Former Ford Aeronutronic Property, Newport Beach, California (2) Source of soil vapor screening levels: February 2016 San Francisco Bay RWQCB ESLs of 240 (final screening level) and 1000 μg/m3 (“Trigger” level and noncancer ESL) for TCE. (3) Indoor air concentrations will be evaluated with respect to the following:

• Outdoor air concentrations • Sub-slab and/or crawl space concentrations, if applicable • Presence of preferential pathways indicating possible migration via sewer line • Indoor air screening levels: 0.48 μg/m3 (long-term; U.S. EPA 2017 RSL and 2016 SFRWQCB ESL) and

2 and 6 μg/m3 [short-term; Accelerated and Urgent Response Action Levels, respectively; DTSC 2014 HHRA Note 5: Health-based Indoor Air Screening Criteria for Trichloroethylene (TCE)].

Between 0.48 and 2 µg/m3

Abbreviations IA = indoor air SV = soil vapor µg/m3 = micrograms per cubic meter VI = vapor intrusion BCA = Big Canyon Arroyo

Perform seasonal SV sampling to confirm

results; if results are

TCE SCREENING LEVELS

Long-Term Exposure Screening Levels TCE Sub-slab/Soil

Gas Vapor Intrusion1 Indoor Air Direct Exposure1

Residential

Commercial

240 µg/m3

3,000 µg/m3

0.48 µg/m3

3 µg/m3

Short-Term Exposure Screening Levels TCE Sub-slab/Soil

Gas Vapor Intrusion1 Indoor Air Direct Exposure—Accelerated2

Indoor Air Direct Exposure—Urgent2

Residential

Commercial (8-hour workday)

Commercial (10-hour workday)

1,000 µg/m3

8,000 µg/m3

8,000 µg/m3

2 µg/m3

8 µg/m3

7 µg/m3

6 µg/m3

24 µg/m3

21 µg/m3

Sources:

1. San Francisco Bay Regional Water Quality Control Board, Environmental Screening Levels, Updated February 2016

2. United States Environmental Protection Agency, July 9, 2014, Memorandum, EPA Region 9 Response Action Levels and Recommendations to Address Near-Term Inhalation Exposures to TCE in Air from Subsurface Vapor Intrusion

Structure BookmarksFord Aeronutronic provided major support for the development of Project Space Track (1957-1961) Mobile Laboratory Pre-Sampling Building Survey Indoor Sampling Canister Sub-Slab Install (eg. garage)

FORD NEWPORT BEACH OPEN HOUSE · Site History 1957-1993 • Ford operated an aeronutronics facility...

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