OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00851
PWS Name: SWEET HOME, CITY OF
 
Who Was Contacted and Phone: Tim Sanders (541) 367-4846
Contact Date: 04/06/2012
Contacted By: MACPHERSON, JAMES (REGION 2)
Contact Method/Location: Office
 
Assistance Type: PLAN REVIEW
Reasons: SWTR
Chlorine
 
Details: SUMMARY: Required Giardia log inactivation DETAILS: Recent updating of the SWTR monthly report form resulted in confusion over the required Giardia log inactivation with which the new plant is credited. The old plant needed 1.0-log, but the presumed requirement for the new plant which has coagulation and flocculation through contact clarifiers is 0.5-log. Since the new plant is effectively conventional filtration, it is logical that it would have 2.5-log filtration credit and only need 0.5-log inactivation for Giardia. ACTION NEEDED: Check the files for mention in the plan review on the required log inactivation with chlorine.


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System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3915