62EI North American Municipal Wastewater Treatment Facilities & People Database  $3.000.00/yr ($100.00/yr Additional user)   Click here to order
Details of 20,000 municipal wastewater treatment plants in the U.S. and Canada with email and phone contacts. New project information biweekly. Details by equipment type. Bids for specific chemicals.
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To see a recorded demonstration of the system: click here