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Pueblo to pursue $1.5 million Basin 3 sewer rehabilitation to reduce selenium infiltration and avoid costly treatment
Summary
Wastewater director Andrea Ahrens and Brown & Caldwell engineer Chandler Wilson outlined a Basin 3 sewer rehabilitation project covering about 1,900 feet of sewer and up to 46 laterals, estimated at roughly $1.5 million, to reduce groundwater infiltration of selenium and sulfate; funding would come from the wastewater enterprise fund and no grants were identified.
Andrea Ahrens, director of wastewater, and Chandler Wilson of Brown & Caldwell presented a sewer system rehabilitation project for Basin 3 at the Pueblo City Council work session on Jan. 26, describing goals, scope, estimated cost and next steps.
Ahrens said the city has seen naturally occurring selenium and sulfate enter the sewer collection system through groundwater infiltration; those minerals can raise treatment costs and harm aquatic life. The Colorado Department of Public Health and Environment granted Pueblo a discharger-specific variance in 2018 to allow time to explore solutions; that variance expires in 2028,…
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