OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 05108
PWS Name: TROLLERS COVE WATER ASSN
 
Who Was Contacted: Denise Graessley
Contact Phone: 541-270-2751
Contact Date: 03/05/2026
Contacted By: CALL, BAXTER (DWP)
Contact Method/Location: Phone
 
Assistance Type: VIOLATION RESPONSE
Reasons: SWTR
 
Details: DWS contacted operator to discuss December 2025 and January 2026 monthly operating reports. Daily membrane integrity tests exceeded the maximum allowable pressure decay rate, and data was missing from the January report. Treatment technique and reporting violations were issued, and a Tier 2 public notice is required. DWS provided a public notice template.

DWS had been working with Trollers Cove, OAWU, and NW Natural Water Services to troubleshoot the failed integrity tests. Those efforts have been successful as of March 2026, and Trollers Cove is passing daily integrity tests.
 
Associated Violations: Viol #902644846, 01/01/2026 - 01/31/2026: SWTR - Failure to meet filter performance standard

Viol #902644848, 01/01/2026 - 01/31/2026: SWTR - Monthly SW Report - Late/Nonreporting

Viol #902644847, 12/01/2025 - 12/31/2025: SWTR - Failure to meet filter performance standard

Viol #902644850, 12/01/2025 - 12/31/2025: SWTR - Monthly SW Report - Late/Nonreporting



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