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

Wastewater treatment plants in United States · Iowa

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763 inventory records · HydroWASTE v1.0 / United States

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

763 results

CompareNameNative sizeYear
LECLAIRE WWTPHW:288032,868 population served2012
CLARION WWTPHW:285722,850 population served2012
MISSOURI VALLEY STPHW:288822,838 population served2012
MACBRIDE SANITARY SEWER DISTRICTHW:288412,837 population served2012
BELLE PLAINE WWTPHW:285122,834 population served2012
SIBLEY WWTPHW:290392,815 population served2012
PARK VIEW LAGOONHW:291552,800 population served2012
ALBIA WWTP NOHW:284672,790 population served2012
ELDORA WWTPHW:286542,737 population served2012
GRUNDY CENTER WWTPHW:287242,706 population served2012
TAMA WWTPHW:290752,697 population served2012
BLOOMFIELD WWTPHW:285222,640 population served2012
WILLIAMSBURG STPHW:291412,622 population served2012
WILTON WWTPHW:291432,577 population served2012
ROCK RAPIDS WWTPHW:290062,573 population served2012
BELMOND WWTPHW:285132,560 population served2012
HUXLEY WWTPHW:287552,546 population served2012
ROCK VALLEY WWTPHW:290072,540 population served2012
TOLEDO WWTPHW:290852,539 population served2012
ELDRIDGE WWTPHW:286552,535 population served2012
MARENGO STLHW:288572,535 population served2012
AUDUBON WWTPHW:284972,524 population served2012
WEST UNION NORTH WWTPHW:291342,497 population served2012
SAC CITY WWTPHW:290192,492 population served2012
WEST BRANCHHW:291272,454 population served2012
LAMONI WWTPHW:287912,444 population served2012
HAWARDEN STPHW:287372,439 population served2012
MADRID WWTPHW:288432,418 population served2012
POSTVILLE WWTPHW:289742,385 population served2012
STRAWBERRY PT SOUTH WWTPHW:290672,365 population served2012
IDA GROVE WWTPHW:287562,357 population served2012
KALONA WWTPHW:287692,293 population served2012
MITCHELLVILLE WWTPHW:288832,280 population served2012
ROCKWELL CITY WWTPHW:290082,224 population served2012
COLFAX WWTPHW:285842,223 population served2012
JESUP WWTPHW:287672,212 population served2012
BELLEVUE STPHW:291962,191 population served2012
CENTERVILLE WEST WWTPHW:285572,144 population served2012
LAKE MILLS WWTPHW:287882,143 population served2012
BRITT WWTPHW:285352,133 population served2012
LA PORTE CITY WWTPHW:287952,128 population served2012
WAPELLO STLHW:291102,124 population served2012
SIGOURNEY EAST WWTPHW:290412,111 population served2012
TIFFIN WWTPHW:290812,100 population served2012
KEOSAUQUA WWTPHW:287762,086 population served2012
SUMNER WWTPHW:290702,078 population served2012
GREENFIELD WWTPHW:287202,074 population served2012
OGDEN STPHW:291862,023 population served2012
ELK RUN HEIGHTS STPHW:286592,000 population served2012
FAIRFAX WWTPHW:286742,000 population served2012
NORTHWOOD WWTPHW:289281,989 population served2012
POCAHONTAS WWTPHW:289701,989 population served2012
GUTTENBURG WWTPHW:287261,986 population served2012
LEON WWTPHW:288091,983 population served2012
LAURENS WWTPHW:288001,976 population served2012
HULL WWTPHW:287521,960 population served2012
NEW LONDON WWTPHW:289171,937 population served2012
PARKERSBURG STLHW:289551,870 population served2012
ALTA WWTPHW:284761,865 population served2012
MANSON WWTPHW:288511,844 population served2012
STUART WWTPHW:290681,831 population served2012
BROOKLYN WWTPHW:285361,828 population served2012
CASCADE WWTPHW:285511,812 population served2012
SLATER STLHW:290451,811 population served2012
MONROE WWTP EASTHW:288861,808 population served2012
DENVER STLHW:286211,780 population served2012
ELY WWTPHW:286641,780 population served2012
REINBECK WWTPHW:289921,751 population served2012
LAKE CITY WWTPHW:287871,727 population served2012
MOUNT AYR WWTPHW:288981,721 population served2012
TRAER WWTPHW:290861,702 population served2012
PLEASANTVILLE WWTPHW:289681,694 population served2012
RIVERSIDE WWTPHW:290021,693 population served2012
PRAIRIE CITY STLHW:289761,681 population served2012
HARTLEY WWTPHW:287361,672 population served2012
LISBON WWTPHW:288181,669 population served2012
MEDIAPOLIS STLHW:288681,637 population served2012
CORNING WWTPHW:285921,635 population served2012
MELCHER DALLAS WWTPHW:291801,625 population served2012
BEDFORD WWTPHW:285111,620 population served2012
TIPTON LAGOON EastHW:290831,617 population served2012
GUTHRIE CENTER WWTPHW:287251,614 population served2012
ACKLEY WWTPHW:284581,589 population served2012
CORYDON WWTPHW:285951,585 population served2012
MOVILLE WWTPHW:289031,583 population served2012
DURANT WWTPHW:286421,549 population served2012
LAKE VIEW WWTPHW:287901,542 population served2012
FARLEY WWTPHW:286761,537 population served2012
MONONA WWTPHW:288851,520 population served2012
REMSEN WWTPHW:289941,513 population served2012
ATKINS WWTPHW:284941,500 population served2012
WOODBINE STLHW:291471,500 population served2012
AVOCA WW STAB LAGOONHW:285001,497 population served2012
OAKLAND WW STAB LAGOONHW:289311,496 population served2012
AKRON WWTPHW:284651,489 population served2012
MANNING WWTPHW:288501,484 population served2012
NASHUA WWTPHW:289081,476 population served2012
HOLSTEIN WWTPHW:287451,470 population served2012
WALFORD WWTPHW:291051,463 population served2012
MONTEZUMA WWTPHW:288881,457 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.