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OHA Drinking Water Services
Contact Report Details |
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| 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 |
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