OHA Drinking Water Services
Contact Report Details |
|||
| PWS ID: | OR41 91783 | ||
| PWS Name: | WHITE BRANCH YOUTH CAMP | ||
| Who Was Contacted: | Lisa Switzer | ||
| Contact Phone: | 503-915-2872 | ||
| Contact Date: | 07/08/2022 | ||
| Contacted By: | MACPHERSON, JAMES (DWP) | ||
| Contact Method/Location: | Phone | ||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Coliform |
||
| Details: | White Branch doesn't know why the 3 July samples are TC+. Notably the chlorine concentration seemed to drop starting in May and into June. The concentration has been stabilized by the July sampling. It is possible the chlorine concentration was insufficient in some way. Also, the pool was filled from a raw water tank on the hill shortly before the June sampling. If there is a pipe connection between the pool and distribution, that may have introduced untreated water. One method to test for such cross-connection is to put a pressure gauge on a distribution faucet close to the pool, assure all other taps/toilets/etc are not used, and reopen the line from the raw water tank on the hill to see if a pressure jump occurs at the gauge. | ||
| Associated Alerts: | COLI22280 - 07/08/2022 - COLIFORM (TCR) |
||