OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 05581
Who Was Contacted and Phone: JIM LEA (541) 347-5111
Contact Date: 04/29/2016
Contacted By: HENRY, ROBERT (DWP)
Contact Method/Location: Office
Reasons: N/A
Details: SUMMARY: CONTACT TRACER STUDY DETAILS: The Weiss Estates Water System is a community surface water system which serves 27 people through 21 connections. The system is located near Bandon in Coos County. The source water is Fahy’s Lake. The raw water is treated by a Seccua membrane water treatment plant. The plant was constructed in 2011The water system contacted the Circuit Rider to assist with a contact tracer study. This study was prompted by high DBP levels. It was determined by Jay Macpherson that the next logical step to deal with the high DBP levels is to perform a tracer study. Based on the configuration of the contact vessels, it is apparent that the contact time is sufficient for disinfection. However, the purpose of the test is to determine how much additional contact time exists as this could be a source of the DBPs. In addition to the DBP issue, the water treatment plant is having several operational issues. A contact tracer study is needed to verify the contact time for the system. In addition, there have been erratic and low chlorine residual levels. Reviewed potential locations for new chlorine injection points. Verified capacity of the chlorine chemical feed pump. ACTION NEEDED: Further coordinate with water system to determine the location for new chlorine injection. Complete tracer study methodology and perform testing.

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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: 3923