OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00270
Who Was Contacted and Phone: Mike Kelly (503) 656-4880
Contact Date: 08/01/2008
Contacted By: BURNETT, GARY (DWP)
Contact Method/Location: Office
Assistance Type: PLAN REVIEW
Reasons: Coliform
Details: SUMMARY: Engineered Control Products to install chlorinator. DETAILS: Mike Kelly of Engineered Control Products has been hired by the City to install a chlorinator at Well 4. Flow from Well 4 at 300 gpm mixes with Well 5 prior to entry into the reservoir. So, the recommended solution feed is 12 gpd of 12.5% sodium hypochlorite at Well 4 to yield 3.5 mg/l chlorine. After the wells mix the residual in the reservoir should be about 1.2 mg/l. ACTION NEEDED: Mike Kelly to submit specification data on chlorine equipment for review.

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