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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00725
PWS Name:	MCNULTY WATER PUD

Who Was Contacted:	Robert Trotter, Hiland Water
Contact Phone:	971-832-9148
Contact Date:	08/16/2023
Contacted By:	OSBORN, DANIEL (COLUMBIA COUNTY)
Contact Method/Location:	Phone

Assistance Type:	OTHER WATER QUALITY - ASR water source taken offline
Reasons:	Operations

Details:	Robert called me with a system update that McNulty Water PUD has decided to not use the ASR - Aquifer Storage & Recovery zone, as they tried blending that source with two other wells/water sources on the system, and their samples still exceeded the MCL for Arsenic. So with the Arsenic Treatment System not seeming to work correctly and with the process of blending the ASR with other sources still resulting in an exceedance of the MCL for Arsenic, the ASR zone has been taken offline completely until further notice. The other water sources on this system have not shown an Arsenic concentration of concern, and they remain in use.