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Customers tell PURA of persistent hard‑water issues; Hazardville says treatment and testing steps are ongoing
Summary
During cross and follow‑up, company witnesses acknowledged periodic customer complaints about hardness and explained current use of polyphosphate (Aquadine) sequestering, weekly green‑sand filter backwashes, and planned PFAS/E. coli testing follow‑ups for offline wells. The company agreed to supply test results and supporting documentation as late files.
Public commenters who attended a Nov. 3 hearing and staff inquired on Dec. 4 about repeated household water‑quality problems in Hazardville’s service area. PURA staff read several names from the prior public comment hearing and asked the company to explain what it is doing to address water quality concerns from residents.
Company witnesses described the ongoing treatment approach and testing plan. A company treatment representative said the system has been using a polyphosphate sequestering agent (referred to in the record as Aquadaine/Aquadean) to keep dissolved hardness in solution rather than removing the hardness, which helps reduce precipitation in customers’ appliances. "We had the sequestering agent to sequester the hardness and to prevent it from precipitating out…
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