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Board authorizes gas chlorination at Well #6 to address chlorine contact issues
Summary
After hearing that contaminants in local wells reduce chlorine contact, the Board approved converting Well #6 to gas chlorination; the transcript records estimated costs and required DNR approval but does not include an implementation schedule.
The Malden Board of Public Works voted June 2 to convert Well #6 to gas chlorination after staff and a guest water consultant described trouble keeping chlorine residuals through parts of the distribution system. Guest Richard Cochran told the Board contaminants in the source water reduce chlorine effectiveness, reporting "1.5 parts of iron, .006 parts of manganese, .06 parts ammonia" and recommending gas chlorination as an interim approach. Cochran gave an estimated cost of about $120,000 for Well #6 and noted that DNR plan approval and an air-tight storage room for chlorine containers would be required.
The board approved the switch (motion by Board Member Trinkler, second by Board Member Bennett). The motion passed; the minutes and transcript do not include a recorded vote tally or a schedule for installation. The transcript records the Board’s decision but does not state construction timing or final vendor selection.
