OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 05581
Who Was Contacted: Corinne Clifton
Contact Phone: 541-297-5784 (Email address hidden)
Contact Date: 04/14/2022
Contacted By: DOWNS, KENT (DWP)
Contact Method/Location: Phone
Assistance Type: ENFORCEMENT
Compliance & Enforcement: Administrative Order: 03/29/2022 - Open
Reasons: SWTR
Details: On 04.14.2022 - a web conference was conducted to verify that Weiss Estates operator understood the requirements of the Administrative Order (AO) issued by DWS on March 8, 2022. Corinne presented her action plan for Weiss Estates to reduce concentration of HAA5 and TTHM in drinking water.

2. Corinne will update the Maintenance and Operation Manual and Standard Operating Procedures (SOPs) to ensure all other volunteers assisting with water sampling are clear on where to test TOCs, when to collect these samples, and how to fill out the lab forms and any other additional TOC reporting forms provided by DWS tech services. She states that she would have the SOPs ready by April 21, 2022.

3.The GAC filtration unit is reasonably expected to achieve the removal of TOC in the raw water. TOC is a precursor of disinfection byproducts (DBPs). She stated that she will begin TOC monthly monitoring on April 18, 2022.

4. Moving the water systemís intake is still an option the water system is willing to consider, but the estimated cost ($30,000 to $35,000) makes it currently unaffordable. Corinne manifested interest in exploring SRF funding.

5. The installation of additional pre-treatment to remove DBPs prior to the injection of chlorine has not been considered by the water system at this time.

6. In addition to TOC monitoring and GAC filtration, the water treatment company working with Weiss Estate is contemplating dredging the area around the intake. The expectation is that by removing some of the silt deposited around the intake and laying down a heavy duty layer of gravel this will reduce TOC in the raw water. Corinne is not sure how the treatment company will get heavy equipment to the area where the intake is located. Access to that area is very limited and the terrain has a steep slow. DWS is also concern the location of the intake near the shore would require constant dredging of the area and could possibly end up being a temporary solution.

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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
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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: 3923