Overview
DERBY WPCF is a municipal wastewater treatment plant in Derby, Connecticut, serving approximately 11,741 people. The facility operates under the U.S. Clean Water Act framework.
DERBY WPCF is a municipal wastewater treatment plant located at 8 Caroline Street in Derby, Connecticut, within the Naugatuck Valley Planning Region. The facility serves a population of approximately 11,741 residents, classifying it as a medium-sized agglomeration under typical U.S. categorization. As a U.S. wastewater facility, DERBY WPCF operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program. The plant's designed capacity is 1.00 million gallons per day, and it is expected to meet secondary treatment standards as a minimum, consistent with EPA requirements for municipal plants of this scale. The plant discharges treated effluent into a local water body, ultimately contributing to the Housatonic River watershed, which flows into Long Island Sound. This discharge supports the ecological health of downstream aquatic habitats, including estuarine environments that are important for fish and wildlife.
Environmental context
The treated effluent from DERBY WPCF enters a tributary of the Housatonic River, which flows southward through western Connecticut and empties into Long Island Sound. This estuarine environment supports diverse aquatic life, including migratory fish species and shellfish. The plant's discharge must comply with water quality standards to protect downstream ecosystems and recreational uses.
Frequently asked questions
DERBY WPCF is located at 8 Caroline Street in Derby, Connecticut, within the Naugatuck Valley Planning Region.
The plant serves approximately 11,741 residents in the Derby area.
The plant discharges treated effluent into a local water body that flows into the Housatonic River, ultimately reaching Long Island Sound.
As a U.S. facility, DERBY WPCF operates under the Clean Water Act and is required to have an NPDES permit issued by the Connecticut Department of Energy and Environmental Protection.
For medium-sized agglomerations in the U.S., secondary treatment is the standard requirement under the Clean Water Act, which typically includes biological treatment processes to reduce organic matter and suspended solids.
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