Millions, possibly even billions of gallons of stormwater containing untreated sewage enter Connecticut’s waters each year, closing beaches, preventing shellfishing and harming marine life, according to experts. It’s an ongoing problem, and one that’s likely to impact the state for decades, costing at least another billion dollars, according to combined estimates from local authorities responsible for implementing sewer overflow remediation projects. CSO outfalls arise in cities that have “combined sewers,” or systems where the pipes carrying sewage and those carrying stormwater are connected in some way, Perry said, adding that such systems are common in older New England municipalities. As for funding, up to half of the cost of remedial projects can come from Clean Water Fund grants, which represent a combination of state and federal funds, according to Straut.
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