OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00971 | ||
| PWS Name: | CAVE JUNCTION, CITY OF | ||
| Who Was Contacted: | Steven Bethke | ||
| Contact Phone: | 541-287-0040 | ||
| Contact Date: | 10/09/2025 | ||
| Contacted By: | DOWNS, KENT (DWP) | ||
| Contact Method/Location: | Phone | ||
| Assistance Type: | OTHER REGULATORY - Coagulation recommendations by Circuit Rider | ||
| Reasons: | Lead or Copper Operations |
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| Details: | Coagulation recommendations provided by Circuit Rider - Civil West Engineers The DRC informed me that Civil West Engineering has completed their report on the alternatives the system should consider in order to improve their coagulation process. Next steps: The operator will email his feedback regarding the service provided by Civil West Engineering. Coagulation Process Next Steps To implement the changes in the coagulation process, the following steps were provided: 1.Jar Testing and Verification: Once the system has selected a coagulant based on jar testing and any other required verification, the operator may run a trial. 2.Trial Run (to Waste): Begin using the new coagulant and pump the treated water to waste until the operator can verify that the process is working correctly. 3.Distribution: Once verified, the operator can start sending the treated water through the distribution system. Post-Implementation Monitoring Following implementation of the new coagulant in the water treatment process, the operator will need to conduct the following monitoring: •Lead and Copper: Two consecutive six-month rounds. Use the original 20 sampling sites. •Water Quality Parameters (WQPs): Two rounds of pH, alkalinity, and temperature. Collect WQPs at a single sample site in the distribution system, ideally one of your existing coliform sampling locations. One round of WQPs with each round of lead and copper. I reminded the operator to notify me when both the new wells are online, and the new coagulant is added to the treatment process. |
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