OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00878
PWS Name: TIGARD, CITY OF
 
Who Was Contacted and Phone: Jennifer Joe (503) 718-2599
Contact Date: 09/05/2014
Contacted By: BAIRD, GREGG (REGION 1)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Coliform
N/A
 
Details: SUMMARY: Routine +TC DETAILS: On Thursday 9/4/14 Jennifer reported that a routine sample collected Tuesday 9/2/14 at 12797 SW Da Vinci Ln came back positive for total coliform/absent for E. coli. Three repeats were collected Wednesday 9/3/14-- the upstream/downstream samples were absent, however the original site tested positive for total coliforms again. On Thursday 9/4/14 the system requested invalidation of the original sample under OAR 333-061-0036(6)(j)(B) since only the routine and repeat at the same site were positive and all other samples negative indicating the sample site itself is suspect. The request is being reviewed and approval is pending. Two wells were running at the time of the distribution positive (ASR #2 and Well #2) so raw source water samples were collected from those wells on 9/3/14 under the triggered monitoring requirements of the Ground Water Rule. ACTION NEEDED: Hold for decision on request to invalidate (Note: request approved 9/12/14). If denied, repeat sampling will need to occur as soon as possible. If accepted, system needs to ensure adequate number of routine samples are collected (at least 60) in September to make-up for the sample that was invalidated.
 
Associated Alerts: COLI13226 - -



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System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 4076