OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00452
PWS Name: LAFAYETTE, CITY OF
 
Who Was Contacted and Phone: Preston Polasek (503) 864-2451
Contact Date: 09/25/2015
Contacted By: HOFELD, EVAN (REGION 1)
Contact Method/Location: Letter
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Disinfection Byproducts
DBPs
 
Details: SUMMARY: DBP MCL Violation Letter DETAILS: On 9/2/15 I received an alert for a TTHM LRAA MCL violation for sampling completed 8/6/15. TTHM was 0.096 mg/l at 113 Washington St. and 0.0816 mg/l at 1214 3rd St. (a data entry error, now corrected, initially indicated 0.816 mg/l at 1214 3rd St. in the original alert notice). The City was instructed to issue a public notice and updated OEL report. I sent a letter dated 9/25/16 requesting the City to submit a corrective action plan to resolve repeated TTHM MCL violations. The letter also instructed the City to continue to issue public notice and updated OEL reports for each quarter a DBP MCL and OEL was exceeded, respectively. ACTION NEEDED: City to continue quarterly DBP monitoring, issue Tier 2 public notice for each quarter the DBP MCL is exceeded, submit an updated OEL report for each quarter the OEL is exceeded, submit a Corrective Action Plan by December 31, 2015. A Bilateral Compliance Agreement may be required depending upon future test results.
 
Associated Alerts: CHEM6850 - 09/02/2015 - TOTAL TRIHALOMETHANES (TTHM)

CHEM6850 - 09/02/2015 - TOTAL TRIHALOMETHANES (TTHM)



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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: 4296