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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 01265
PWS Name:	ARRAH WANNA WATER COMPANY

Who Was Contacted:	David Jacob
Contact Phone:	503-310-9262 (Email address hidden)
Contact Date:	01/22/2019
Contacted By:	NUSRALA, JAMES (DWP)
Contact Method/Location:	Email

Assistance Type:	VIOLATION RESPONSE
Reasons:	SWTR Existing PWS CA

Details:	System has addressed numerous disinfection CT and resulting public notice violations, through constructing a new well, receiving final plan review approval for the new source, and ensuring that the surface water source, Crystal Creek, has been physically separated from the water system and replaced with the groundwater source that meets all construction standards. Well is chlorinated for residual maintenance and there is no contact time requirement for the well. The disinfection CT violations resulted from a lack of sufficient contact time in the contact reservoir given a smaller baffling factor determined through a tracer study, that previously assumed. I have issued final approval for the new well today, and the well is currently the only source serving the water system at this time. All conditions of the conditional approval have been met by the system, including disinfecting and flushing the entire water system per AWWA standards, and forwarding two required coliform absent sample results from the distribution to DWS.

Associated Violations:	Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : - Viol #, - : -