OHA Drinking Water Services
Contact Report Details |
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PWS ID: | OR41 90531 | ||
PWS Name: | JEWELL SCHOOL DISTRICT #8 | ||
Who Was Contacted and Phone: | Joe Donaldson (503) 755-2451 ext. 37 | ||
Contact Date: | 09/29/2010 | ||
Contacted By: | CARR, BRAD (DWP) | ||
Contact Method/Location: | Field | ||
Assistance Type: | CIRCUIT RIDER ASSISTANCE | ||
Reasons: | N/A N/A |
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Details: | SUMMARY: CT Tracer Study DETAILS: The School has a modular slow sand filter water treatment plant that provides water to the school as well as 11 connections that serve a total of 172 people. The source for the school’s water is an infiltration well located on the bank of Beneky Creek. Sodium Hypochlorite is added for disinfection after the sand filters. The contact time is achieved in a 15,000 gallon tank that also doubles as a clear well. HBH was contacted by Joe Donaldson to provide assistance with a contact tracer study to determine the amount of contact time in the system before first user. I completed the report, which included measures for increasing contact time and investigating validity of tested flows. ACTION NEEDED: Assist school with recommendations for increasing contact time. |