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Dzus Fasteners Company Proposed Remedial Action Plan, Operable Unit No. 3Willetts Creek AreaProject Manager: Payson Long Date: August 9, 2017

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Agenda • Site Location • History • Scope of the Remedial Investigation • Findings of The Remedial Investigation • Proposed Remedy• Questions

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Site Location

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History

• Dzus Fastener Company History • Remedial History

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Dzus History

• Operations from 1932 to 2015. • Manufactured ¼ Turn Fasteners out of a variety of materials

and used by a variety of industries.• Released wastes from plating and anodizing to leaching

pools.

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Remedial History• Operable Unit 1 - On-site source area located on the eastern end

of the Dzus property Interim Remedial Measure OU1A - Soil Removal

• Operable Unit 2 - Dredging Lake Capri• Operable Unit 3 - Willetts Creek and low lying properties

Interim Remedial Measures OU3A (fence installation, maintenance of the school footbridges)

• Operable Unit 4 - Lake Capri• Other - RCRA Closure of the DFCI Property

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RCRA Closure

Key

Soil Piles

Excavation

Dry well

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Remedial Process • Remedial Investigation (RI) - Investigate to determine the nature and

extent of contamination.• Feasibility Study (FS) - Identify, screen and evaluate potential

remedies to address the contamination.• Proposed Remedial Action Plan (PRAP) - Proposes remedy for public

review and comment.• Record of Decision (ROD) - Documents final remedial decision.

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Scope of Remedial Investigation • Sample residential backyards • Sample the Beach Street Middle School athletic fields • Sample the West Islip Senior High School grassy areas• Sample upgradient of the DFCI property• Sample commercial property• Trace all outfalls back to source, and sample outfalls• Sample Willetts Creek tidal • Resample Willetts Creek in select areas

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Results

Contamination in Soil and Sediment • Primary contaminants found in the zone of impact:

• Cadmium• Trivalent Chromium

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Zone of Impact

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Soil

Detected

Constituents

Concentration

Range

Detected

(ppm)a

Residential

Use SCGc

(ppm)

Frequency

Exceeding

Restricted

Residential

SCG

Cadmium 1.4-84 2.5 31 of 271

Chromium,

Trivalent5.5-130 36 7 of 271

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Sediment

Detected

Constituents

Concentration

Range

Detected

(ppm)a

SCGb

Class A

(ppm)

Frequency

Exceeding

Class A

SCGc

Class

B

(ppm)

Frequency

Exceeding

Class B

SCGd

Class

C

(ppm)

Frequency

Exceeding

Class C

Inorganics

Cadmium 0.61-8,200 1 214/270 1-5 151/270 5 151/270

Chromium,

Trivalent0.43-60 43 4/31 43-110 0/31 110 0/31

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Outfall

New York State Department of HealthScarlett McLaughlin

Public Health SpecialistBureau of Environmental Exposure InvestigationEmpire State Plaza, Corning Tower, Room 1787

Albany, NY 12237Phone: (518) 402-7860

Fax: (518) 402-7859Email: beei@health.ny.gov

Role of the NYS Department Of Health• Work with NYSDEC to identify nature and extent of contamination

to evaluate potential exposures

• Evaluate data and make recommendations to address any potential exposure and evaluate the need for additional information

• Ensure that remedy selected is protective of public health

Exposure• Physical contact with a chemical or substance

Inhalation (breathing) Direct contact (touching) Ingestion (eating/drinking)

• One or more of these physical contacts must occur before a chemical has the potential to cause a health problem

• Exposure does not necessarily mean that health effect will occur

Potential Exposure Pathways

An approved community air monitoring plan will be in place during the implementation of the remedy for any ground intrusive activities.

Inhalation

Potential Exposure Pathways

People may come into contact with contaminants present in sediments and some floodplain soils of Willetts Creek upon entering or exiting the Creek and adjacent wetland areas.

Direct Contact

Potential Exposure Pathways

People are not drinking contaminated groundwater as the area is served by a public water supply that is not affected by this contamination.

Wash hands after coming in contact with Willets creek/Lake Capri sediments or nearby floodplain soils, particularly prior to eating.

If you choose to eat from vegetable gardens, ensure that produce is washed off to remove any loose soil that may cling to the surface.

A fishing advisory exists for Lake Capri that limits consumption of fish due to chlordane and cadmium impacts.

Ingestion

Fishing

Follow fish advisories for Lake Capri

Men Over 15 & Women Over 50

American eel, CarpUp to 1 meal/month

All other fishUp to 4 meals/month

Women Under 50 & Children Under 15

American eel, CarpDON’T EAT

All other fishDON’T EAT

Gardening

Garden• Chemicals may be there naturally or

from past and present land use, consider growing in raised beds

• Wear gloves when working in the garden and avoid bringing soil inside

• Wash hands with soap and water after gardening

Food Preparation• Always wash or rinse fruits and

vegetables before eating them

• Peel below-ground vegetables and those grown in close contact with soil

• Remove outside leaves of leafy head vegetables

Proposed Remedy

Soil

Soil containing chromium or cadmium exceeding 6 NYCRR Part 375 soil cleanup objectives (SCOs) for residential use will be removed and replaced with appropriate backfill in accordance with 6 NYCRR Part 375. Excavated areas will be restored to

conditions that are similar to existing conditions with topsoil, plantings, and grass, to the extent feasible.

Proposed Remedy

Sediment

Accumulated sediments will be removed to native material in the zone of impact, defined by the portion of Willetts Creek (and associated floodplain) where cadmium or chromium were observed above residential SCOs or above the lowest end of the Class B Sediment Guidance Values. The zone of impact extends from behind the shopping plaza to approximately 500 feet south of the footbridge at Edmore Lane.

Confirmation sampling will be conducted and the excavated area will be restored as a riparian corridor with stable stream and floodplain wetlands.

Questions?Scarlett McLaughlin

Public Health SpecialistBureau of Environmental Exposure InvestigationEmpire State Plaza, Corning Tower, Room 1787

Albany, NY 12237Phone: (518) 402-7860

Fax: (518) 402-7859Email: beei@health.ny.gov

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Interim Remedial MeasuresFence Installation

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Interim Remedial MeasuresFootbridge MaintenanceWest Islip Senior High School

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Interim Remedial MeasuresFootbridge MaintenanceBeach Street Middle School

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Remedial Action ObjectivesSoil

RAOs for Public Health Protection• Prevent ingestion/direct contact with contaminated soil.

RAOs for Environmental Protection• Prevent impacts to biota from ingestion/direct contact with soil causing toxicity or

impacts from bioaccumulation through the terrestrial food chain.

SedimentRAOs for Public Health Protection

• Prevent direct contact with contaminated sediments.RAOs for Environmental Protection

• Prevent impacts to biota from ingestion/direct contact with sediments causingtoxicity or impacts from bioaccumulation through the marine or aquatic foodchain.

• Restore sediments to pre-release/background conditions to the extent feasible.

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Remedial Alternative Total Present Worth ($)

1. No Action $0

2. Site Management $25,000

3. Excavation of Soil to residential use

SCOs and Sediment in zone of impact

to native with off-site disposal

$12,570,000

4. Excavation of Soil to Restricted Use

SCOs and Sediment to Class B SCGs

with off-site disposal

$7,150,000

5. Multi-media Capping of Soil and

Sediment$5,600,000

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Proposed Remedy• Alternative No. 3: Soil Excavation to residential use SCOs,

and Sediment removal in the zone of impact to nativematerial, with off-site disposal.

• Estimated present worth cost to implement the remedy is$12,570,000.

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Zone of Impact

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Next Steps

• Accept public comments on the proposed remedy (August 21);

• Review and address public comments;• Issue Record of Decision (ROD) based on accepted

remedy; and• Design and implement remedial program.

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Thank YouPayson LongProject ManagerPayson.long@dec.ny.gov518-402-9813

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