OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 05581
PWS Name: WEISS ESTATES WATER SYSTEM
 
Who Was Contacted and Phone: JIM LEA (541) 347-5113
Contact Date: 07/07/2016
Contacted By: HENRY, ROBERT (DWP)
Contact Method/Location: Office
 
Assistance Type: CIRCUIT RIDER ASSISTANCE
Reasons: N/A
N/A
 
Details: SUMMARY: DBP Issues 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 has been in contact with the Circuit Rider due to persistent disinfection byproduct (DBP) issues. It had been 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. It should be noted that DBPs are high even during the summer months, where the contact time would be shorter. But, they are significantly higher in the non-summer months. It has been proposed that the water system change the chlorine injection point to shorten the contact time. The other course of action should include review of the treatment system prior to chlorination. Provided investigation and coordination with OHA staff regarding methods of pretreatment which could reduce the formation of DBPs. ACTION NEEDED: Continue to assist with DBP formation issues.


More information for this water system: SDWIS ID 3923
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