OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00657
PWS Name: PORTLAND WATER BUREAU
 
Who Was Contacted and Phone: Kathy Casson (503) 823-7447
Contact Date: 11/09/2006
Contacted By: SALIS, KARI (DWP)
Contact Method/Location: Office
 
Assistance Type: OTHER REGULATORY - OTHER
Reasons: Operations
N/A
 
Details: SUMMARY: Switching off Bull-Run, onto groundwater supply DETAILS: Due to high turbidity in the Bull Run reservoir (3.5 NTU and rising when they shut it off), the Bureau is no longer putting water from Bull Run into the system. The groundwater pump station is meeting demand 100%. I talked to Kathy about sampling of the groundwater source. She said that when they sampled the groundwater in August, all aquifers were represented at that time. I told her in that case another sample is not required. We clarified the requirement that samples must be representative of what people are being served, and in the case of multiple wells in different aquifers, we would interpret this that as long as all aquifers are represented in the sample, theyre ok. If a sample is taken with only a few aquifers on, and they later use all aquifers, another sample would need to be taken. She will send documentation of all aquifers being used when she sends in the chemical sample results from summertime. They are out sampling the turbidity in the watershed now, but they plan on using groundwater until the turbidity is reliably below 5 NTU. They have issued a press release that they are now using 100% groundwater.


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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: 3900