OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00635
PWS Name: SUNRISE WATER AUTHORITY
 
Who Was Contacted and Phone: Tim Jannsen (503) 761-0220
Contact Date: 08/23/2013
Contacted By: FARRELLY, PETER (DWP)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Coliform
N/A
 
Details: SUMMARY: TC+ repeat at same sample tap. DETAILS: While this second TC+ at the original sample station is enough evidence to invalidate the sample tap and move on, Sunrise did a second round of repeats as well as re-examined their sampling protocols & stations.
In so doing, they determined a possible culprit in their summer mystery TC+s. In a sample station there are 2 lines - a sample line and a drain line for winterizing the station. Their drain lines have perhaps never been flushed. They opened both lines for all their second-round-repeats. All these results came back TC-. ACTION NEEDED: Sunrise WA will likely change their coliform sampling protocol to flush both lines either every time or at least more frequently.
 
Associated Alerts: COLI11989 - 08/22/2013 - COLIFORM (TCR)