OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00566
Who Was Contacted and Phone: Steve Stewart (541) 265-7421
Contact Date: 02/06/2008
Contacted By: KELLEY, KAREN (REGION 2)
Contact Method/Location: Office
Reasons: Disinfection Byproducts
Details: SUMMARY: DBP monitoring increase from annual to quarterly. DETAILS: I received an alert for TTHM sampled 9/12/07 in October 2007. At the time, I used the 9/07 and 3/07 sample results to calculate the running annual average at 0.055 mg/L, which allowed Newport to remain on an annual sampling schedule for Stage 1 DBPs. I recently found out that I cannot use the 3/07 sample results in the calculation because they were quarterly results instead of annual results. As such, the newly calculated RAA for the 9/07 results is 0.078 mg/L which triggers monitoring to return to quarterly. I sent Steve Stewart an email notifying him of the schedule change. Next DBP Stage 1 sample results must be collected during 1st quarter 2008 from at least one location representing the maximum chlorine residence time. I also updated sdwis to show the quarterly schedule beginning in 2008. ACTION NEEDED: None.

For further information on this public water system, click on the area of interest below:
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 :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 4298

Need help? Email Drinking Water Services for assistance.