OHA Drinking Water Services
Contact Report Details |
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PWS ID: | OR41 01501 | ||
PWS Name: | COUNTRY CLUB ESTATES WD | ||
Who Was Contacted and Phone: | Ralph Dunham, Stuntzner (541) 267-2872 | ||
Contact Date: | 07/12/2017 | ||
Contacted By: | MACPHERSON, JAMES (REGION 2) | ||
Contact Method/Location: | Office | ||
Assistance Type: | PLAN REVIEW | ||
Reasons: | SWTR Operations |
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Details: | SUMMARY: Status of surface water treatment DETAILS: An ozone unit with all wetted parts of glass and/or stainless steel does not need certification to Standard 61. CBNB water will be chloramines, which complicates providing 1.0-log inactivation of Giardia on-site. Data needed on chloramine and pH values in CBNB system at master meter area. Could boost chlorine on-site to generate free chlorine to achieve CT, then return to chloramines after contact time. Tracer study could be conducted by Circuit Rider, CivilWest. Could use salt and measure conductivity as tracer. ACTION NEEDED: none |