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

Wastewater treatment plants in United States · Illinois

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414 inventory records · HydroWASTE v1.0 / United States

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

414 results

CompareNameNative sizeYear
KINCAID WWTP and COLLECTION SYSTEMHW:278101,461 population served2012
WAYNE CITY STPHW:278281,461 population served2012
Dunlap Collection SystemHW:278401,461 population served2012
HARRISTOWN STPHW:276991,454 population served2012
WAVERLY City ofHW:279391,453 population served2012
Galva Southwest STPHW:278521,450 population served2012
FORRESTON STPHW:278191,446 population served2012
WILLIAMSVILLE STPHW:276911,439 population served2012
SOMONAUK WWTPHW:276171,430 population served2012
ONARGA STWHW:275701,368 population served2012
GERMANTOWN HILLS STP 1HW:277071,350 population served2012
MANITO STPHW:278911,344 population served2012
TOLUCA STPHW:278621,329 population served2012
CHRISMAN STPHW:279001,318 population served2012
PORT BYRON SEWERS and STPHW:276721,313 population served2012
HANNA CITY STPHW:276591,310 population served2012
MAPLE PARK STPHW:277521,310 population served2012
FREEBURG EAST NO 1HW:276331,269 population served2012
FORREST WWTPHW:278831,256 population served2012
SOUTH PEKIN STPHW:276661,251 population served2012
GERMANTOWN STPHW:275581,246 population served2012
EDINBURG STPHW:278091,238 population served2012
GRANT PARK STPHW:279571,230 population served2012
WATERMAN STPHW:279381,224 population served2012
Stillman Valley STP and Coll SystemHW:278201,217 population served2012
GRIDLEY STPHW:276581,210 population served2012
DIVERNON TREATMENT FACILITYHW:276921,201 population served2012
DANVERS STPHW:277181,191 population served2012
ODELL WWTPHW:278861,188 population served2012
MILLEDGEVILLE STPHW:278871,183 population served2012
WINDSOR SEWERAGE SYSTEMHW:276161,178 population served2012
ANDALUSIA STPHW:276671,178 population served2012
MALTA STPHW:279351,164 population served2012
ATKINSON STPHW:276861,158 population served2012
MARTINSVILLE STPHW:278611,148 population served2012
ASHTON TREATMENT SYSTEMHW:275811,142 population served2012
PLEASANT HILL WWTPHW:279611,119 population served2012
WORDEN WASTEWATER TR SYSHW:276461,108 population served2012
WENONA SEW TR PLTHW:278631,108 population served2012
GERMANTOWN HILLS WWTP 2HW:277081,100 population served2012
GREENFIELD STPHW:278241,097 population served2012
CLAYTON WWTPHW:277361,085 population served2012
MORRISONVILLE STPHW:277001,068 population served2012
VIOLA STPHW:278151,067 population served2012
PAYSON SEWAGE FACILITYHW:277951,066 population served2012
OKAWVILLE STPHW:276211,057 population served2012
TILDEN STPHW:279441,032 population served2012
MOUND CITY STPHW:278681,030 population served2012
WYANET STPHW:278071,028 population served2012
LOUISVILLE STPHW:278901,027 population served2012
KIRKWOOD STPHW:279481,008 population served2012
FOX LAKE TALL OAKS STPHW:275911,000 population served2012
WITT STPHW:278961,000 population served2012
ST JACOB STPHW:27652998 population served2012
CAPRON STPHW:27677961 population served2012
SHANNON SWG TRT PLTHW:27889944 population served2012
AVON STPHW:27951939 population served2012
PAW PAW STPHW:27860926 population served2012
ALBERS STPHW:27928907 population served2012
AVISTON STPHW:27930900 population served2012
BRIMFIELD SDHW:27701895 population served2012
NEWARK STPHW:27879887 population served2012
ANNAWAN STPHW:27687886 population served2012
COLFAX STPHW:27657877 population served2012
MCLEAN STPHW:27721874 population served2012
TAMAROA LAGOONHW:27549856 population served2012
SHERIDAN SD WWTPHW:27771846 population served2012
ALEXIS STPHW:27553843 population served2012
Adams County Water DistrictHW:27832842 population served2012
AUGUSTA STPHW:27953830 population served2012
BLUFFS STPHW:27573826 population served2012
Pembroke TownshipHW:27833825 population served2012
FINDLAY STPHW:27873806 population served2012
Pleasant Plains WTPHW:27797802 population served2012
MAZON STPHW:27871775 population served2012
TAMPICO STPHW:27916772 population served2012
SHABBONA STPHW:27936740 population served2012
NIANTIC STPHW:27697738 population served2012
ALTAMONT STP NORTHHW:27960704 population served2012
PALMYRA STPHW:27924698 population served2012
TONICA STPHW:27966685 population served2012
IRVING STPHW:27898665 population served2012
PEARL CITY STPHW:27946665 population served2012
ALHAMBRA STPHW:27651603 population served2012
TAMMS WWTPHW:27859603 population served2012
FRANKLIN Village ofHW:27940600 population served2012
Davis Junction WWTPHW:27831591 population served2012
New Boston WWTPHW:27801572 population served2012
Spoon Valley Lake Sanitary DistrictHW:27842550 population served2012
ALTONA STPHW:27920545 population served2012
MANLIUS STPHW:27808541 population served2012
DAHLGREN STPHW:27909514 population served2012
FITHIAN STPHW:27878506 population served2012
Lost Lake Utility District WWTPHW:27843500 population served2012
COWDEN STPHW:27872474 population served2012
Neponset WastewaterHW:27829473 population served2012
ONEIDA NORTH LAGOONHW:27915465 population served2012
NEBO STPHW:27962462 population served2012
THEBES STPHW:27550455 population served2012
WAYNESVILLEHW:27958438 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.