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Hempstead water officials brief board on trench restoration contracts and 1,4‑dioxane treatment
Summary
Department of Water staff explained routine contracts for road restoration after water‑main work and a design/maintenance contract for advanced oxidation (AOP/UV) systems intended to address occasional detections of 1,4‑dioxane in town wells; officials said testing frequency increases when contaminants appear.
During the administrative calendar discussion on April 14, John Reinhardt of the Department of Water described contract item 29, a standing contract used to restore pavement after water‑main repairs on county and state roads, and contract item 28, a maintenance agreement for TrojanUV equipment used as part of the town’s AOP systems for 1,4‑dioxane removal.
Reinhardt explained that the town uses the restoration contract when water mains are opened and the road surface must be reconstructed to an appropriate thickness and traffic control standard. Regarding wells with detections of 1,4‑dioxane, Reinhardt said wells without treatment are tested quarterly and wells showing an appearance of contaminants are monitored monthly; the referenced contract would support the design of an AOP treatment system for identified wells and a maintenance agreement for existing UV chambers at approximately 18 wells.
Why it matters: 1,4‑dioxane is a regulated contaminant; the town described a proactive approach: wells with any appearance of the chemical are put on a monitoring and treatment path even if concentrations remain below maximum contaminant levels. The contracts will enable ongoing inspection, calibration and upkeep of UV/AOP equipment that is part of the town’s treatment strategy.
Next steps: contract awards on the administrative calendar will enable staff to continue maintenance and to proceed with design work where required; residents with well‑quality concerns were directed to departmental materials and to public records for testing results.
