OHA Drinking Water Services
Contact Report Details
|PWS ID:||OR41 00501|
|PWS Name:||DESCHUTES VALLEY WATER DIST|
|Who Was Contacted:||Rick Moon|
|Contacted By:||BYRD, MICHELLE P (DWP)|
|Assistance Type:||WATER QUALITY ALERT RESPONSE|
|Details:||Rick called to inform me that a routine sample collected on Monday, September 14th at Site #22 was total coliform positive. Since it is Friday, he plans to collect the three repeat samples at upstream, downstream and original sites and a combined source sample next Monday, September 21st. He noted heavy smoke conditions in the area due to wildfires. He will notify me when follow-up sample results are available to discuss if further action is needed.
On Friday, September 25th, Joel Gehrett and Rick Moon with DVWD called to inform me that the upstream repeat sample collected on September 21st at 6305 LaSalle Lane was total coliform positive. The combined source sample was absent. The positive coliform samples were in the same area as the coliform positives in August. An old waterline from the 1940s running parallel to existing piping may be the issue. Corrective action planned includes isolating and capping the old waterline. The affected area including the tank farm will be chlorinated and flushed. We discussed additional sampling to further isolate the affected area. The September coliform positive samples triggers a level 2 investigation that will be performed during the water system survey scheduled for October 7th. - M Byrd.
|Associated Alerts:||COLI20296 - 09/25/2020 - COLIFORM, TOTAL (TCR)
COLI20265 - 09/18/2020 - COLIFORM, TOTAL (TCR)