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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00703
PWS Name:	RICHLAND, CITY OF

Who Was Contacted and Phone:	Gary Chamberlin (541) 893-6141
Contact Date:	09/27/2013
Contacted By:	HENRY, ROBERT (DWP)
Contact Method/Location:	Field

Assistance Type:	CIRCUIT RIDER ASSISTANCE
Reasons:	N/A N/A

Details:	SUMMARY: CT Tracer Study DETAILS: The City of Richland owns and operates a groundwater (under the influence) system that provides water to 175 connections. Water from Eagle Creek enters the system through an infiltration gallery. The system has a natural filtration credit and disinfection with sodium hypochlorite. Water travels from the infiltration and disinfection system from New Bridge to the City of Richland’s elevated reservoir. The Circuit Rider was contacted by the City to provide assistance with a contact tracer study to determine the amount of contact time in the transmission main and reservoir before the first user. Started development of methodology. ACTION NEEDED: Complete methodology, then complete data collection and testing report.