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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00317
PWS Name:	GATES, CITY OF

Who Was Contacted:	GREG BENTHIN
Contact Phone:	503-897-2669 (Email address hidden)
Contact Date:	07/03/2024
Contacted By:	BAIRD, GREGG (DWP)
Contact Method/Location:	Phone

Assistance Type:	MONITORING
Reasons:	Cyanotoxins

Details:	Total microcystins were detected at 0.28 ug/L in Gates' weekly finished water sample collected Monday 7/1/24 (raw water sample collected 7/1/24 showed total microcystins at 7.91 ug/L). The finished water result does not exceed the 0.3 ug/L health advisory level for vulnerable populations so does not require a confirmation sample be collected or issuance of a public notice at this time. As a result, monitoring of the raw water has been increased to daily starting within 24 hours. Gates is starting daily finished water monitoring (EP-A) on Friday 7/5/24 (the next day the treatment plant will be running) and will collect finished water samples going forward on days the treatment plant is running (currently every other day). Operator informed of schedule change this date and they indicated they will collect and freeze a sample Friday 7/5/24 and Sunday 7/7/24, and ship the finished water samples Monday 7/8/24 along with 7/8/24 raw & finished samples.