OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00257 | ||
| PWS Name: | DETROIT WATER SYSTEM | ||
| Who Was Contacted and Phone: | Bob Bruce (503) 854-3496 | ||
| Contact Date: | 05/31/2008 | ||
| Contacted By: | ERBELE, HANK (DWP) | ||
| Contact Method/Location: | Field | ||
| Assistance Type: | CIRCUIT RIDER ASSISTANCE | ||
| Reasons: | N/A N/A |
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| Details: | SUMMARY: Perform Ct Tracer Study DETAILS: A new Ultrasonic flowmeter was installed on the system’s 210,000 gallon storage reservoir outlet piping. A CT Tracer Study was requested to determine the current disinfection contact time. I drafted disinfection flow chart, tracer study worksheet and theoretical contact time. CT Tracer Study was performed on 5/6/08. I collected and evaluated data to establish disinfection contact time for the water treatment system. ACTION NEEDED: Complete Tracer Study report. | ||