Property Details for Supplemental Groundwater Sampling - Port Gamble S'Klallam Tribe Reservation

On this page:

Profile Information
Property Location
Property Progress
CAs Associated with this Property
Assessment Activities at this Property
Climate Adaption and Mitigation - Planning or Assessment
Contaminants and Media
Cleanup Activities
Climate Adaption and Mitigation - Demolition or Cleanup
Institutional & Engineering Controls
Redevelopment and Other Leveraged Accomplishments
Climate Adaption and Mitigation - Redevelopment
Additional Property Attributes

Legal Notices

Profile Information

Property Alias

Property Owner

Government

ACRES Property ID

260705

Property Address

31912 Little Boston Rd NE KINGSTON, WA 98346

Size

1303

Parcel Numbers

Multiple Parcels; Kitsap County

Latitude/Longitude

47.852077986045 / -122.569224006761

Congressional District

Property Contact

Morales, Susan

Morales.Susan@epa.gov

206-553-7299

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Property Location

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Property Progress

Assessment

Clean Up

Institutional Controls in Place

Engineering Controls in Place

Ready for Anticipated Use

Redevelopment Underway

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CAs Associated with this Property

CA Name	CA #	State	Type	Announcement Year
Port Gamble S'Klallam Tribe	BF01J86201	WA	Assessment	2020

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Assessment Activities at this Property

Activity	EPA Funding	Start Date	Completion Date	CA	Accomplishment Counted?	Counted When?
Phase II Environmental Assessment	$72,810.37	06/05/2024	10/11/2024	Port Gamble S'Klallam Tribe	Y	FY25

Is Cleanup Necessary? Yes
EPA Assessment Funding: $72,810.37
Leveraged Funding:
Total Funding: $72,810.37

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Climate Adaption and Mitigation - Planning or Assessment

There is no data for Climate Adaption and Mitigation - Planning or Assessment.

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Contaminants and Media

Contaminant Found

Other Contaminants

Remediating Action for Contaminants

NOT Cleaned up

Media Affected

Ground Water

Remediating Action for Media

NOT Cleaned up

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Cleanup Activities

There are no current cleanup activities.

Cleanup/Treatment Implemented:
Cleanup/Treatement Categories:
Addl Cleanup/Treatment info:
Address of Data Source:

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Climate Adaption and Mitigation - Demolition or Cleanup

There is no data for Climate Adaption and Mitigation - Demolition or Cleanup.

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Institutional and Engineering Controls

Indicate whether Institutional Controls are required

Categories of Controls

Additional Institutional Controls Information

Address of Data Source (URL if available)

Are Institutional Controls in Place

Date Institutional Controls were put in place

Indicate whether Engineering Controls are required

Categories of Controls

Additional Engineering controls information

Address of Data Source (URL if available)

Indicate whether Engineering Controls are in place

Date Engineering Controls were put in place

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Redevelopment and Other Leveraged Accomplishments

There are no current redevelopment activities.

Number of Redevelopment Jobs Leveraged:
Actual Acreage of Greenspace Created:
Leveraged Funding:

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Climate Adaption and Mitigation - Redevelopment

There is no data for Climate Adaption and Mitigation – Redevelopment

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Additional Property Attributes

Property Highlights

The scope of work for Stantec's surface water and groundwater sampling was designed to assess potential
impacts from contaminated groundwater migration from the Hansville Landfill onto the PGST Reservation.
To accomplish these objectives, the scope of work as outlined in the SAP included the following:

? Installation of four temporary monitoring wells (GW01 to GW04) located downslope from the Hansville
Landfill on PGST Reservation land.
? Collection of groundwater grab samples from the four temporary groundwater monitoring wells (GW01
to GW04). This included four primary samples (one from each monitoring well) and one field duplicate.
Groundwater grab samples were analyzed for PFAS using EPA Method 1633 and for PCB Aroclor
Compounds using EPA Method 8082.
? Collection of one equipment blank, one field blank, one trip blank, and one matrix spike/matrix spike
duplicate (MS/MSD) for quality assurance/quality control (QA/QC) purposes. The equipment blank and
MS/MSD were submitted to the laboratory for PFAS and PCBs analysis. The field blank was submitted
to the laboratory for PFAS analysis. The trip blank was supposed to be submitted to the laboratory for
PFAS analysis.
? The locations of the temporary monitoring wells are shown on Figure 2.

Based on the analytical results of this sampling event Stantec has identified the following:
? PFAS compounds were detected in the groundwater grab samples from temporary monitoring wells
GW01 and GW02; however, the concentrations did not exceed applicable state or EPA cleanup levels
or screening levels.
? No PFAS compounds were detected in the equipment blank, field blank, or QA/QC samples for the
groundwater grab samples collected.
? Data validation completed as part of this assessment indicates that the groundwater grab sample
analytical data are of known and acceptable quality, as qualified by regulatory and laboratory established
control limits and the project's data quality objectives.

Predominant Past Usage

Greenspace (1100) Residential (200)

What types of funding are being used on this property?

State and Tribal Program Information

Date No Further Action Letter Received

Date Letter/Signed Report Received from a Qualified Professional