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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · Connecticut

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88 inventory records · HydroWASTE v1.0 / United States

Data years: 2012. The inventory date does not establish current operation.

88 results

CompareNameNative sizeYear
HARTFORD WPCFHW:26559215,737 population served2012
NEW HAVEN EAST SHORE WPCFHW:26575187,888 population served2012
BRIDGEPORT WESTSIDEHW:26536117,525 population served2012
WATERBURY WPCFHW:26613114,548 population served2012
MATTABASSETT WPCFHW:2654295,547 population served2012
STAMFORD WPCFHW:2660273,848 population served2012
NORWALK WPCFHW:2658265,435 population served2012
FAIRFIELD WPCFHW:2655054,140 population served2012
WEST HAVEN WPCFHW:2661451,654 population served2012
MERIDEN WPCFHW:2656851,579 population served2012
GREENWICH WPCFHW:2655450,581 population served2012
STRATFORD WPCFHW:2660648,600 population served2012
NEW LONDON WPCFHW:2657648,403 population served2012
BRISTOL STPHW:2653844,700 population served2012
EAST HARTFORD WPCFHW:2656144,000 population served2012
BRIDGEPORT EAST SIDEHW:2653742,993 population served2012
MANCHESTER WPCFHW:2656741,600 population served2012
DANBURY WPCFHW:2654341,513 population served2012
ENFIELD WWTFHW:2654936,400 population served2012
ROCKY HILL WPCFHW:2656233,770 population served2012
GROTON WPCFHW:2655731,776 population served2012
Middletown WPCFHW:2656931,700 population served2012
UNIVERSITY OF CONN WPCFHW:2662030,500 population served2012
MILFORD HOUSATONIC WPCFHW:2657130,090 population served2012
VERNON WPCFHW:2661129,710 population served2012
WALLINGFORD WPCFHW:2661228,750 population served2012
TORRINGTON MAIN WPCFHW:2661027,150 population served2012
SOUTHINGTON WPCFHW:2659825,615 population served2012
NORWICH WPCFHW:2658325,530 population served2012
NAUGATUCK WPCFHW:2657324,108 population served2012
BRANFORD WPCFHW:2653519,900 population served2012
WILLIMANTIC WPCFHW:2661719,657 population served2012
GLASTONBURY WPCFHW:2655219,226 population served2012
FARMINGTON WPCFHW:2655119,040 population served2012
SHELTON WPCFHW:2659617,010 population served2012
ANSONIA WPCFHW:2653316,854 population served2012
PLAINVILLE WPCFHW:2658614,510 population served2012
NORTH HAVEN WPCFHW:2658113,920 population served2012
SOUTH WINDSOR WPCFHW:2659913,850 population served2012
SEYMOUR WPCFHW:2659413,420 population served2012
EAST HAMPTON WPCFHW:2654712,600 population served2012
GROTON CITY WPCFHW:2655812,600 population served2012
DERBY WPCFHW:2654511,741 population served2012
KILLINGLY WPCFHW:2656411,490 population served2012
POQUONOCK STPHW:2656010,950 population served2012
BEAVER BROOK WPCFHW:2657010,621 population served2012
WINDSOR LOCKS WPCFHW:2661810,543 population served2012
MONTVILLE WPCFHW:2657210,446 population served2012
WINSTED WPCFHW:266169,800 population served2012
WESTPORT WPCFHW:266159,500 population served2012
SIMSBURY WPCFHW:265979,288 population served2012
PLYMOUTH WPCFHW:265878,093 population served2012
CHESHIRE WPCFHW:265407,950 population served2012
PUTNAM W P C FHW:265897,950 population served2012
E WINDSOR WAREHOUSE PTHW:265487,750 population served2012
LITCHFIELD WPCFHW:265666,800 population served2012
STAFFORD WPCFHW:266015,650 population served2012
SUFFIELD WPCFHW:266075,300 population served2012
CANTON WPCFHW:265395,196 population served2012
THOMASTON WPCFHW:266085,000 population served2012
STONINGTON PAWCATUCK WPCFHW:266044,323 population served2012
PORTLAND WPCFHW:265884,050 population served2012
NEW MILFORD WPCFHW:265774,046 population served2012
STONINGTON MYSTIC WPCFHW:266033,820 population served2012
PLAINFIELD NORTH WPCFHW:265843,738 population served2012
PLAINFIELD VILLAGE WPCFHW:265853,641 population served2012
RIDGEFIELD WPCFHW:265913,641 population served2012
NEWTOWN WPCFHW:265783,496 population served2012
JEWETT CITY WPCFHW:265553,388 population served2012
BEACON FALLS WPCFHW:265343,000 population served2012
HAMMONASSETT PARK WPCFHW:266193,000 population served2012
THOMPSON WPCFHW:266092,708 population served2012
SALISBURY WPCFHW:265932,124 population served2012
COVENTRY WPCFHW:265412,000 population served2012
SPRAGUE WPCFHW:266002,000 population served2012
STONINGTON BOROUGH WPCFHW:266051,900 population served2012
DEEP RIVER WPCFHW:265441,700 population served2012
Goshen Woodridge Lake Sewer DistHW:265531,500 population served2012
LEDYARD HIGHLANDS WPCFHW:265651,500 population served2012
CANAAN FIRE DISTRICT WPCFHW:265801,400 population served2012
NORFOLK WPCFHW:265791,213 population served2012
KENT WWTFHW:26563925 population served2012
NEW HARTFORD WPCFHW:26574700 population served2012
REDDING GEORGETOWN WPCFHW:26590475 population served2012
RIDGEFIELD RT7_35 WPCFHW:26592450 population served2012
SHARON SEWER SYSTEMHW:26595303 population served2012
E HADDAM WPCFHW:26546300 population served2012
GLASGO COMMUNITY WTPHW:2655690 population served2012

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.