OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details
PWS ID: OR41 00240
PWS Name: RIVERSTONE MOBILE HOME PARK
 
Who Was Contacted: Brian Hoag
Contact Phone: 503-244-2300
Contact Date: 10/03/2023
Contacted By: CIVIL WEST ENGINEERS, INC (DWP)
Contact Method/Location: Field
 
Assistance Type: CIRCUIT RIDER ASSISTANCE
 
Details: Background/Problem Identification:

The water system had a recent Health Advisory Level (HAL) exceedance for PFAS analyte, PFOS. With this exceedance, OHA reached out on behalf of the WS to the circuit rider for assistance.

Assistance Provided:

PFAS sampling conducted as part of the OHA-DWS PFAS Sampling Project showed PFOS at 7.25 ppt at entry point A (EP-A) for a sample collected 4/25/23. These results are above EPA's proposed PFOS MCL of 4.0 ppt meaning corrective action will likely be required in the near future. The first phase of the project includes a feasibility study to identify options available for addressing the PFAS and associated costs for each option. Possible additional funding for future design and construction phases if a project is identified and pursued. A cost estimate was prepared with a proposed budget of $19,908 to support the planning and evaluation of alternatives support effort.

Follow-Up Actions Needed:

The circuit rider can assist further as needed.

Technical Reports to be Prepared and Expected Timeframe:

N/A

More information for this water system: SDWIS ID 3282
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