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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00202
PWS Name:	COLTON WATER DISTRICT

Who Was Contacted and Phone:	Jan Kaforski (503) 824-2500
Contact Date:	11/12/2008
Contacted By:	FARRELLY, PETER (DWP)
Contact Method/Location:	Office

Assistance Type:	OTHER REGULATORY - CPE (COMPREHENSIVE PERFORMANCE EVAL.)
Reasons:	SWTR Operations

Details:	SUMMARY: Rehash 1994 SWTR AO - RTCd 1.23.97 DETAILS: (The AO and RTC sheet is at the back of the WS file) Colton was given an AO after the 1993 CPE found that Colton could not reliably treat water to SWTR turbidity requirements. It was granted only 1.5 log reduction credit. Colton then produced no SWTR violations between 2.1995 and 11.1996. Colton was then Returned To Compliance on 1.23.97. While Colton is now rated at a 2.0 log reduction plant, they are actually still struggling to meet even more strict SWTR requirements now (0.3 NTU 95% of the time, Never > 1 NTU). ACTION NEEDED: Monitor SWTR results, and consider another Administrative Order. Fix Flocculator paddles, among other package plant deficiencies.