Contact Report Details | Data Online | Oregon Drinking Water Services

More information for this water system: SDWIS ID 4690
System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Coliform Schedules :: LT2 :: GW/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Summary :: Chemical Results :: Chemical Schedules :: Chemical Schedule Summary :: Arsenic RAA :: Cyanotoxins :: PFAS
Lead & Copper :: DBP Sample Sites :: FANLs :: MRDL :: GWR 4-Log :: Turbidity :: SWTR :: LRAA :: DW Source Protection

OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00953
PWS Name:	WILLAMINA, CITY OF

Who Was Contacted and Phone:	Justin Riggs (503) 437-7003
Contact Date:	04/04/2012
Contacted By:	KALISH, FRED (REGION 1)
Contact Method/Location:	Office

Assistance Type:	OTHER REGULATORY - REGULATORY ASSISTANCE
Reasons:	SWTR Operations

Details:	SUMMARY: Regulatory Compliance - SW Monthly Monitoring Reports DETAILS: I contacted Justin to discuss the SW Monthly Monitoring Reports - specifically the CT calculation sheet. I requested that Justin utilize the results from the 2007 Tracer Study and enter the value of 567 minutes in the Contact Time column - as this value represents the worst case scenario for a peak flow of up to 500 gpm. Justin indicated the peak flow is substantially below 500 gpm. He will check with the DRC and then presumably begin entering the proper value starting in this months report. ACTION NEEDED: None at this time.