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| Introduction :: Data Search Options :: Water System Search :: DWS Home :: DWS Rules |
OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00528 | ||
| PWS Name: | MILWAUKIE, CITY OF | ||
| Who Was Contacted and Phone: | Don Simenson (503) 786-7622 | ||
| Contact Date: | 11/10/2016 | ||
| Contacted By: | FARRELLY, PETER (DWP) | ||
| Contact Method/Location: | Office | ||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Coliform N/A |
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| Details: | SUMMARY: Boil water due to E. coli result on PWB intertie DETAILS: At least two samples were drawn Wednesday 1. before opening emergency intertie of Milwaukie with Portland Water Bureau, and 2. Six (6) hours later after 7,000 gallons passed into Milwaukies distribution system. The first sample result was TC+, the second was E. coli positive. A total of 30,000 gallons were used before the intertie was closed when lab results indicated contamination. While it was likely only a portion of the distribution system was affected, the entire city had to boil its water. More recent flushing as well as sampling chlorine residual and coliform the previous day before use may have prevented this event. ACTION NEEDED: A modified Level 1 investigation must be done by Milwaukie operators. Boil order was lifted before 12n Friday, Veterans Day (i.e., holiday) after 6-8 repeat coliform samples results were negative. |
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| Associated Alerts: | COLI16255 - 11/14/2016 - COLIFORM (TCR) , E. COLI COLI16255 - 11/14/2016 - COLIFORM (TCR) , E. COLI COLI16255 - 11/14/2016 - COLIFORM (TCR) , E. COLI |
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