OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 01081
Who Was Contacted: James Belliveau
Contact Phone: 508-215-6110 (Email address hidden)
Contact Date: 07/31/2020
Contact Method/Location: Email
Assistance Type: OTHER REGULATORY - Repeat coliform sample requested to be labeled as routine- denied
Details: I requested to the state yesterday that a sample that Bear springs took on the 20th of July be changed from a repeat to a routine sample as today is the last day of the month.
That request was denied for a few factors::
Advisory was lifted on 7/17 (prior to these samples being collected)
The chlorine residual on the June samples was 0
The chlorinator is currently broken (as of 7/30 Level 2 investigation)
The chlorine level recorded on these samples is 1.4
The highest recorded chlorine level in the past 3 years is 1.0 (once) and generally averages between 0.02 and 0.8.
The assumption is that the chlorinator was likely broken in June and not repaired in-between then and the July samples. The chlorine residual on these results is 1.5X higher than their average high reading. As a result, these samples appear to be a result of shock chlorination. With that, they are not representative of normal operations.

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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: 4370