OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00867
Who Was Contacted: Matt Bowen
Contact Phone: 541-296-5255
Contact Date: 10/01/2020
Contacted By: BYRD, MICHELLE P (DWP)
Contact Method/Location: Phone
Reasons: Operations
Details: Mr. Bowen emailed DEQ on 9/29 to report that the drinking water serving his residence has a strong chlorine odor. He has noticed this issue before and is concerned about the health risk. I called Mr. Bowen on the same day for more information. His water service is adjacent to one of the district's wells where water is chlorinated before serving customers. Using personal equipment, Mr. Bowen measured free chlorine at his residence and informed the district of the elevated chlorine readings (>2.2 ppm). He said the district has adjusted the chlorine dosage at injection to reduce chlorine residual levels.

On 9/30, I spoke with Jeb Miller with Chenowith PUD to relay Mr. Bowen's chlorine concerns. Jeb had already spoken with Mr. Bowen the same day. The district has no documented water quality issues at this time. Jeb and I discussed corrective action options (e.g., checking equipment, increase residual readings, communicate with other customers) to further evaluating chlorine residuals in this area, document findings and operational changes made. He said the district targets 0.8-1 ppm at chlorine injections sites to ensure a detectable residual throughout the distribution system. He recently measured residual at 0.41 ppm on the waterline serving Mr. Bowen. Jeb also stated there have been multiple security breaches at this well facility where the chlorinator and well had been turned off. The district is looking into security improvements at this facility.

On 10/1, I spoke with Mr. Bowen again and relayed the steps the district was planning to take to address chlorine issues.

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