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

Who Was Contacted:	Pete Dostert
Contact Phone:	503-382-7422
Contact Date:	07/19/2018
Contacted By:	CIVIL WEST ENGINEERS, INC (DWP)
Contact Method/Location:	Phone

Assistance Type:	CIRCUIT RIDER ASSISTANCE

Details:	Based on call from Pete Farrelly who said calibration between turbidimeter the HaschSC200 and chart recorder did not seem correct. Chart would read values different from that displayed on the SC200. Matt Wadlington (Civil West Engineering) met onsite with Pete Dostert (CWD), Pete Farrelly (OHA), and James Nusrala (OHA) on Thursday, 8/9 to look at the system. An attempt was made to calibrate the milliamp signal from the SC200, but it was not displaying correctly on the chart recorder. Another site visit by Matt on August 13 was successful in calibrating the signal. Chart recorder now reads turbidity from 0 to 1.00 NTU.