OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00564
PWS Name: BAY HILLS WATER ASSOCIATION
 
Who Was Contacted and Phone: John MacKown (541) 265-3245
Contact Date: 10/07/2010
Contacted By: KALISH, FRED (REGION 2)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Disinfection Byproducts
Operations
 
Details: SUMMARY: DBP Sampling Results DETAILS: Called John to discuss recent DBP sampling result showing elevated levels of TTHM. I had previously calculated the RAA and determined that the resulting value was below the MCL, therefore no action is required at this time. Bay Hills utilizes pre-chlorination to address iron, odor and color issues. We discussed the possibility of reducing the chlorine dose used for this purpose but maintain the reduction of iron ppt in the filters. Interestingly, the last time that higher TTHM occurred was this time last year, which may suggest some seasonal basis (TOC, temp, etc). I suggested that they explore lowering pre-chlorination levels before the level of DBP becomes a problem. ACTION NEEDED: None at this time.
 
Associated Alerts: CHEM4411 - 10/07/2010 - TOTAL TRIHALOMETHANES (TTHM)



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
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3977