States / Iowa / Drinking Water
Drinking Water Systems in Iowa
1,080 community water systems serving about 3,017,414 people. 132 have a health-based violation on record since 2015, 5 of them unresolved.
SystemHealth-based violations (2015+)
LINDSEY ESTATES · SWISHER · 62 served · groundwater4 (4 unresolved)
VERN ACRES (OLIPHANT ADDITION) · CENTER POINT · 150 served · groundwater3 (3 unresolved)
LIVERMORE WATER SUPPLY · LIVERMORE · 383 served · groundwater1 (1 unresolved)
COTTAGE RESERVE CORPORATION · IOWA CITY · 198 served · groundwater1 (1 unresolved)
BARNES CITY WATER SUPPLY · BARNES CITY · 156 served · purchased groundwater1 (1 unresolved)
GALLERY ACRES WEST · SOLON · 43 served · purchased groundwater278
CHARITON MUNICIPAL WATER WORKS · CHARITON · 4,381 served · purchased surface water221
MCBRIDE POINTE THIRD MASTER MAINTENANCE · SOLON · 25 served · groundwater193
MALLARD WATER SUPPLY · MALLARD · 257 served · purchased groundwater164
IOWA VALLEY ESTATES · MARENGO · 46 served · groundwater64
LANESBORO WATER WORKS · LANESBORO · 119 served · purchased groundwater55
DEDHAM WATER SUPPLY · DEDHAM · 221 served · purchased groundwater54
DONNELLSON MUNI WATER WORKS · DONNELLSON · 885 served · purchased groundwater50
GRINNELL WATER DEPARTMENT · GRINNELL · 9,564 served · groundwater49
DYERSVILLE MUNICIPAL WATER CO · DYERSVILLE · 4,477 served · groundwater49
KNIERIM WATER SUPPLY · KNIERIM · 53 served · groundwater49
PLOVER WATER SUPPLY · PLOVER · 50 served · groundwater45
FAIRBANK WATER SUPPLY · FAIRBANK · 1,111 served · purchased groundwater40
HASTINGS WATER SUPPLY · HASTINGS · 152 served · groundwater38
MONTIPARK LLC · MONTICELLO · 60 served · groundwater36
BELLEVUE MUNICIPAL UTILITIES · BELLEVUE · 2,363 served · groundwater30
KESSLERS HOMEOWNERS ASSN · IOWA CITY · 60 served · groundwater30
BRISTOW MUNI WATER SUPPLY · BRISTOW · 145 served · groundwater28
CORRIDOR RIDGE SUBDIVISION · SHUEYVILLE · 108 served · groundwater27
LEON WATER SUPPLY · LEON · 1,830 served · surface water26
EARLY MUNICIPAL WATER SUPPLY · EARLY · 587 served · groundwater26
OSCEOLA WATER WORKS · OSCEOLA · 5,503 served · surface water24
FARLEY WATER SUPPLY · FARLEY · 1,766 served · groundwater21
LEHIGH WATER SUPPLY · LEHIGH · 395 served · groundwater21
SIOUX CITY WATER SUPPLY · SIOUX CITY · 85,791 served · groundwater under surface influence19
SHELDAHL WATER SUPPLY · SHELDAHL · 307 served · groundwater19
MARQUETTE WATER SUPPLY · MARQUETTE · 429 served · groundwater18
BOONE WATER WORKS · BOONE · 12,704 served · groundwater under surface influence15
DAWSON WATER WORKS · DAWSON · 116 served · groundwater15
KEYSTONE WATER SUPPLY · KEYSTONE · 599 served · groundwater14
MAPLE GROVE MHC · AMES · 160 served14
NEW MARKET WATER SUPPLY · NEW MARKET · 385 served · purchased surface water13
WALDENBURG COMMUNITY WATER SYSTEM · AMANA · 90 served · groundwater13
ATKINS MUNICIPAL WATER WORKS · ATKINS · 2,056 served · groundwater12
CRESTON WATER SUPPLY · CRESTON · 7,536 served · surface water11
MASSENA WATER SUPPLY · MASSENA · 364 served · groundwater10
OAK RIDGE LAKE ESTATES · SWISHER · 88 served · groundwater10
WENDRAM BLUFF HOMES WATER SYSTEM · IOWA CITY · 68 served · groundwater10
REVELLE 1ST & 2ND SUBDIVISION · BLUE GRASS · 54 served · groundwater10
UNIVERSITY WATER SYSTEM · IOWA CITY · 26,684 served · surface water9
WESTCOTT HEIGHTS PARTS 1 & 2 · IOWA CITY · 63 served · groundwater9
LITTLE BEAR CAMPGROUND · WEST LIBERTY · 45 served · groundwater9
MAHASKA RURAL WATER SYSTEM, INC. · OSKALOOSA · 9,818 served · groundwater8
SOUTHWEST REG WATER DISTRICT (CLARINDA) · CLARINDA · 2,942 served · purchased surface water8
TOLEDO WATER SUPPLY · TOLEDO · 2,399 served · groundwater8
LAMONI MUNICIPAL UTILITIES · LAMONI · 2,029 served · surface water8
CORNING MUNI WATER DEPARTMENT · CORNING · 1,735 served · surface water8
WOODWARD WATER SUPPLY · WOODWARD · 1,346 served · groundwater8
WHEATLAND CITY WATER SUPPLY · WHEATLAND · 775 served · groundwater8
LOUISA COURTS MHP & SALES · MUSCATINE · 121 served · groundwater8
ZEARING WATER DEPARTMENT · ZEARING · 528 served · purchased groundwater7
SUNRISE VILLAGE MOBILE HOME PK · IOWA CITY · 340 served · groundwater7
GREENFIELD MUNICIPAL UTILITIES · GREENFIELD · 2,227 served · surface water6
SLATER MUNI WATER DEPT · SLATER · 1,548 served6
HICKORY HILLS SECOND ANNEX · BLUE GRASS · 130 served · groundwater6
OSKALOOSA MUNICIPAL WATER DEPT · OSKALOOSA · 12,808 served · groundwater under surface influence5
HAMPTON MUNI WATER WORKS · HAMPTON · 4,337 served · groundwater5
SIRWA #1 (GREENFIELD) · GREENFIELD · 1,712 served · purchased surface water5
GILBERT WATER SUPPLY · GILBERT · 1,211 served · groundwater5
MALVERN WATER SUPPLY · MALVERN · 1,046 served · groundwater5
WALL LAKE WATER SUPPLY · WALL LAKE · 780 served · groundwater5
CRESCENT WATER SUPPLY · CRESCENT · 778 served · purchased surface water5
WOODWARD RESOURCE CENTER · WOODWARD · 700 served · purchased surface water5
POMEROY WATER SUPPLY · POMEROY · 671 served · groundwater5
RYAN WATER SUPPLY · RYAN · 350 served · groundwater5
SOUTH AMANA WATER SUPPLY · SOUTH AMANA · 300 served · groundwater5
CRYSTAL LAKE WATER SUPPLY · CRYSTAL LAKE · 255 served · groundwater5
COUNTRY MANOR ESTATES · HIAWATHA · 228 served · groundwater5
IOWA CITY REGENCY MOBILE HOME COMMUNITY · IOWA CITY · 225 served · groundwater5
JAMAICA WATER SUPPLY · JAMAICA · 195 served · purchased surface water5
MOORLAND WATER SUPPLY · MOORLAND · 168 served · groundwater5
ROYAL OAKS SUBDIVISION · SWISHER · 163 served · groundwater5
SPRING VALLEY HOMEOWNERS ASSN. · IOWA CITY · 163 served · groundwater5
BLAIRS FERRY MANOR · TODDVILLE · 65 served · groundwater5
GLENN OAKS ADDITION · TODDVILLE · 58 served · groundwater5
COUNTRY VIEW SUBDIVISION HOA · KALONA · 55 served · groundwater5
WALDSCHMIDT SUBDIVISION · RIVERSIDE · 45 served · groundwater5
CHESTNUT RIDGE · CEDAR RAPIDS · 33 served · groundwater5
CENTRAL WATER WORKS · FORT DODGE · 27 served · groundwater5
DES MOINES WATER WORKS · DES MOINES · 246,055 served · purchased surface water4
WATERLOO WATER WORKS · WATERLOO · 69,504 served · groundwater4
MARION MUNICIPAL WATER DEPT · MARION · 41,623 served · groundwater4
BURLINGTON MUNICIPAL WATERWORKS · BURLINGTON · 26,015 served · surface water4
SIRWA #2 (CRESTON) · CRESTON · 20,793 served · surface water4
REGIONAL WATER · AVOCA · 4,132 served · purchased surface water4
PLEASANTVILLE WATER WORKS · PLEASANTVILLE · 1,676 served · groundwater4
XENIA RWD (MADRID) · MADRID · 1,635 served4
CLARINDA TREATMENT COMPLEX · CLARINDA · 1,439 served · groundwater4
AMANA SOCIETY WATER SYSTEM NORTH · MIDDLE AMANA · 1,248 served · groundwater4
APLINGTON WATER SUPPLY · APLINGTON · 1,126 served · groundwater4
ELK RUN HEIGHTS WATER SUPPLY · ELK RUN HEIGHTS · 1,069 served · purchased groundwater4
LANSING WATER SUPPLY · LANSING · 983 served · groundwater4
DE SOTO WATER SUPPLY · DE SOTO · 960 served · groundwater4
PRINCETON WATER SUPPLY · PRINCETON · 923 served · groundwater4
NEWHALL WATER SUPPLY · NEWHALL · 881 served · groundwater4
BLAIRSTOWN WATER SUPPLY · BLAIRSTOWN · 738 served · groundwater4
DELMAR WATER SUPPLY · DELMAR · 542 served · groundwater4
GILMORE CITY WATERWORKS · GILMORE CITY · 487 served · groundwater4
DOW CITY WATER WORKS · DOW CITY · 467 served · groundwater4
LAWLER WATER SUPPLY · LAWLER · 406 served · groundwater4
LEWIS WATER SUPPLY · LEWIS · 357 served · groundwater4
DANBURY WATER SUPPLY · DANBURY · 320 served · groundwater4
FLOYD MUNI WATER SUPPLY · FLOYD · 313 served · groundwater4
WADENA WATER SYSTEM · WADENA · 209 served · groundwater4
COIN WATER SUPPLY · COIN · 176 served · purchased groundwater4
LITTLE SIOUX WATER DEPARTMENT · LITTLE SIOUX · 150 served · groundwater4
WELTON WATER SUPPLY · WELTON · 121 served · groundwater4
CARRIAGE MEADOWS HOMEOWNERS ASSOCIATION · BETTENDORF · 80 served · groundwater4
NORTH END MOBILE HOME PARK · DUBUQUE · 40 served · groundwater4
ALTOONA WATER SUPPLY · ALTOONA · 19,565 served · groundwater3
SPIRIT LAKE WATERWORKS · SPIRIT LAKE · 6,167 served · surface water3
WINTERSET MUNICIPAL WATERWORKS · WINTERSET · 5,428 served · surface water3
MILFORD MUNICIPAL UTILITIES · MILFORD · 3,431 served · surface water3
RURAL WATER SYSTEM #1 · HOSPERS · 3,428 served · groundwater under surface influence3
MADRID WATER DEPARTMENT · MADRID · 3,090 served · groundwater under surface influence3
ROCK VALLEY RURAL WATER DISTRICT · ROCK VALLEY · 2,230 served · groundwater3
EXIRA WATER DEPT · EXIRA · 764 served · purchased groundwater3
PONY CREEK #1 HOA · PACIFIC JUNCTION · 125 served · groundwater3
HILLTOP ROAD ASSOCIATION #1 · MUSCATINE · 45 served · groundwater3
MITCHELLVILLE WATER SUPPLY · MITCHELLVILLE · 2,515 served · groundwater2
DANVILLE WATER SUPPLY · DANVILLE · 923 served · purchased surface water2
MONTROSE WATER WORKS · MONTROSE · 738 served · purchased surface water2
SCHALLER WATER SUPPLY · SCHALLER · 729 served · groundwater2
TABLE MOUND PARK · DUBUQUE · 455 served · purchased groundwater2
GRINNELL MHP MHC · GRINNELL · 313 served · purchased groundwater2
VALLEY VIEW WATER ASSOCIATION · MISSOURI VALLEY · 65 served · groundwater2
YANKEE GROVE HOA · LISBON · 64 served · groundwater2
IOWA-AMERICAN WTR CO-DAVENPORT · DAVENPORT · 147,720 served · surface waternone on record
CEDAR RAPIDS WATER DEPARTMENT · CEDAR RAPIDS · 142,364 served · groundwater under surface influencenone on record
ANKENY, CITY OF · ANKENY · 76,207 served · purchased surface waternone on record
WEST DES MOINES WATER WORKS · WEST DES MOINES · 73,959 served · purchased surface waternone on record
IOWA CITY WATER DEPARTMENT · IOWA CITY · 68,753 served · surface waternone on record
COUNCIL BLUFFS WATER WORKS · COUNCIL BLUFFS · 64,447 served · surface waternone on record
DUBUQUE WATER WORKS · DUBUQUE · 59,667 served · groundwaternone on record
AMES WATER TREATMENT PLANT · AMES · 55,177 served · groundwaternone on record
URBANDALE WATER UTILITY · URBANDALE · 45,605 served · purchased surface waternone on record
ISU · AMES · 42,000 served · purchased groundwaternone on record
CEDAR FALLS MUNICIPAL WATER UTILITIES · CEDAR FALLS · 40,713 served · groundwaternone on record
IA REGIONAL UTILITIES ASSOC (WAVERLY) · WAVERLY · 37,820 served · groundwaternone on record
RATHBUN REGIONAL WATER ASSN (RATHBUN) · CENTERVILLE · 33,000 served · surface waternone on record
WAUKEE WATER SUPPLY · WAUKEE · 31,823 served · purchased surface waternone on record
MARSHALLTOWN WATER WORKS · MARSHALLTOWN · 27,680 served · groundwaternone on record
MASON CITY WATER DEPARTMENT · MASON CITY · 27,338 served · groundwaternone on record
FORT DODGE WATER SUPPLY · FORT DODGE · 25,874 served · groundwaternone on record
OTTUMWA WATER WORKS · OTTUMWA · 25,529 served · surface waternone on record
MUSCATINE POWER & WATER · MUSCATINE · 25,516 served · groundwaternone on record
JOHNSTON MUNICIPAL WATER SUPPLY · JOHNSTON · 24,897 served · purchased surface waternone on record
IOWA-AMERICAN WTR CO-CLINTON DISTRICT · CLINTON · 24,769 served · groundwaternone on record
NORTH LIBERTY WATER SUPPLY · NORTH LIBERTY · 23,276 served · groundwaternone on record
CORALVILLE MUNI WATER SYSTEM · CORALVILLE · 22,318 served · groundwaternone on record
CLIVE WATER DEPARTMENT · CLIVE · 20,277 served · purchased surface waternone on record
WARREN WATER DISTRICT · INDIANOLA · 20,095 served · purchased surface waternone on record
GRIMES WATER SUPPLY · GRIMES · 17,809 served · groundwaternone on record
WAPELLO RURAL WATER ASSOC. · OTTUMWA · 17,263 served · purchased surface waternone on record
NEWTON WATER SUPPLY · NEWTON · 16,518 served · groundwaternone on record
INDIANOLA WATER SUPPLY · INDIANOLA · 15,833 served · groundwaternone on record
NORWALK WATER SUPPLY · NORWALK · 14,334 served · purchased surface waternone on record
POWESHIEK WATER ASSOCIATION · BROOKLYN · 13,920 served · groundwaternone on record
XENIA RWD (DES MOINES) · MINBURN · 12,860 served · purchased surface waternone on record
RATHBUN REG WATER ASSN (FT MADISON) · FORT MADISON · 11,840 served · purchased surface waternone on record
STORM LAKE WATER TREATMENT PLANT · STORM LAKE · 11,431 served · groundwaternone on record
SPENCER MUNICIPAL WATER UTILITY · SPENCER · 11,325 served · groundwaternone on record
FT MADISON MUNI WATER WORKS · FORT MADISON · 11,087 served · groundwaternone on record
PELLA WATER WORKS DEPARTMENT · PELLA · 11,052 served · groundwaternone on record
LEMARS WATER DEPARTMENT · LE MARS · 10,606 served · groundwaternone on record
WAVERLY WATER DEPARTMENT · WAVERLY · 10,394 served · groundwaternone on record
CARROLL MUNICIPAL WATER SUPPLY · CARROLL · 10,184 served · groundwaternone on record
KEOKUK MUNICIPAL WATER WORKS · KEOKUK · 9,900 served · surface waternone on record
FAIRFIELD WATER SUPPLY · FAIRFIELD · 9,821 served · groundwaternone on record
BONDURANT MUNI WATER SUPPLY · BONDURANT · 9,393 served · purchased surface waternone on record
DENISON WATER SUPPLY · DENISON · 9,381 served · groundwaternone on record
MOUNT PLEASANT MUNICIPAL UTILITIES · MOUNT PLEASANT · 9,274 served · groundwaternone on record
IOWA LAKES REGIONAL WATER - OSGOOD · GRAETTINGER · 9,021 served · purchased surface waternone on record
KNOXVILLE WATER WORKS · KNOXVILLE · 8,400 served · groundwaternone on record
RATHBUN REG WTR ASSN (BURLINGTON) · BURLINGTON · 8,375 served · purchased surface waternone on record
SIOUX CENTER MUNICIPAL WATER DEPARTMENT · SIOUX CENTER · 8,231 served · groundwaternone on record
PERRY MUNICIPAL WATER WORKS · PERRY · 7,836 served · groundwaternone on record
WEBSTER CITY WATER SUPPLY · WEBSTER CITY · 7,825 served · groundwaternone on record
CLEAR LAKE WATER DEPARTMENT · CLEAR LAKE · 7,687 served · groundwaternone on record
DECORAH WATER DEPARTMENT · DECORAH · 7,615 served · groundwaternone on record
TIFFIN WATER SUPPLY · TIFFIN · 7,577 served · groundwaternone on record
SOUTHEAST POLK RWD · ALTOONA · 7,565 served · purchased surface waternone on record
CHARLES CITY WATER SUPPLY · CHARLES CITY · 7,446 served · groundwaternone on record
WASHINGTON WATER DEPARTMENT · WASHINGTON · 7,362 served · groundwaternone on record
ATLANTIC MUNICIPAL UTILITIES · ATLANTIC · 7,252 served · groundwaternone on record
HIAWATHA WATER DEPT · HIAWATHA · 7,183 served · groundwaternone on record
OSCEOLA RURAL WATER SYSTEM-NORTH · MAY CITY · 7,002 served · groundwaternone on record
NEVADA WATER SUPPLY · NEVADA · 6,925 served · groundwaternone on record
IOWA LAKES REGIONAL WATER · SPENCER · 6,755 served · groundwaternone on record
ELDRIDGE WATER SUPPLY · ELDRIDGE · 6,726 served · groundwaternone on record
POLK CITY WATER SUPPLY · POLK CITY · 6,533 served · purchased surface waternone on record
ADEL MUNICIPAL WATER WORKS · ADEL · 6,461 served · groundwaternone on record
ORANGE CITY MUNICIPAL WATER DEPARTMENT · ORANGE CITY · 6,267 served · groundwaternone on record
MAQUOKETA MUNICIPAL WATER · MAQUOKETA · 6,128 served · groundwaternone on record
XENIA RWD (NORTH) · STRATFORD · 6,122 served · groundwaternone on record
INDEPENDENCE WATER DEPT · INDEPENDENCE · 6,064 served · groundwaternone on record
ASBURY MUNICIPAL WATER SYSTEM · ASBURY · 5,943 served · groundwaternone on record
OELWEIN MUNICIPAL WATER WORKS · OELWEIN · 5,920 served · groundwaternone on record
ESTHERVILLE WATER TREATMENT PLANT · ESTHERVILLE · 5,904 served · groundwaternone on record
MARION CO. RURAL WATER DISTRICT · KNOXVILLE · 5,687 served · purchased groundwaternone on record
RED OAK WATER SUPPLY · RED OAK · 5,596 served · groundwaternone on record
DE WITT WATER SUPPLY · DE WITT · 5,514 served · groundwaternone on record
SHELDON WATER DEPARTMENT · SHELDON · 5,512 served · groundwaternone on record
ALGONA MUNICIPAL UTILITIES · ALGONA · 5,487 served · groundwaternone on record
GLENWOOD MUNICIPAL UTILITIES · GLENWOOD · 5,449 served · groundwaternone on record
SOUTHERN SIOUX COUNTY RURAL WATER · IRETON · 5,420 served · groundwaternone on record
CENTERVILLE MUNICIPAL WATERWORKS · CENTERVILLE · 5,344 served · purchased surface waternone on record
CHEROKEE WATER SUPPLY - PLANT 1 · CHEROKEE · 5,199 served · groundwaternone on record
IOWA FALLS WATER DEPARTMENT · IOWA FALLS · 5,146 served · groundwaternone on record
MANCHESTER WATER SUPPLY · MANCHESTER · 5,077 served · groundwaternone on record
HARLAN MUNICIPAL UTILITIES · HARLAN · 5,067 served · groundwaternone on record
SERGEANT BLUFF WATER SUPPLY · SERGEANT BLUFF · 5,015 served · groundwaternone on record
XENIA RWD (BOONE) · LUTHER · 4,975 servednone on record
VINTON MUNICIPAL WATER DEPT · VINTON · 4,938 served · groundwaternone on record
SHENANDOAH WATER DEPT · SHENANDOAH · 4,925 served · groundwaternone on record
HUMBOLDT MUNICIPAL WATER DEPT · HUMBOLDT · 4,792 served · groundwater under surface influencenone on record
CAMANCHE WATER SUPPLY · CAMANCHE · 4,570 served · groundwaternone on record
EVANSDALE WATER WORKS · EVANSDALE · 4,561 served · groundwaternone on record
MOUNT VERNON WATER SUPPLY · MOUNT VERNON · 4,527 served · groundwaternone on record
ANAMOSA MUNICIPAL WATER SUPPLY · ANAMOSA · 4,457 served · groundwaternone on record
CLARINDA WATER PLANT · CLARINDA · 4,372 served · surface waternone on record
FOREST CITY WATER SUPPLY · FOREST CITY · 4,285 served · groundwaternone on record
HUXLEY WATERWORKS DEPT · HUXLEY · 4,244 served · groundwaternone on record
JEFFERSON WATER DEPARTMENT · JEFFERSON · 4,182 served · groundwaternone on record
CARLISLE WATER SUPPLY · CARLISLE · 4,170 served · groundwaternone on record
SIRWA #3 (OSCEOLA) · OSCEOLA · 4,080 served · purchased surface waternone on record
ROCK VALLEY WATER SUPPLY · ROCK VALLEY · 4,059 served · groundwaternone on record
MONTICELLO WATER SUPPLY · MONTICELLO · 4,040 served · groundwaternone on record
WEST LIBERTY WATER UTILITY · WEST LIBERTY · 3,938 served · groundwaternone on record
CRESCO WATERWORKS · CRESCO · 3,913 served · groundwaternone on record
WAUKON WATER DEPARTMENT · WAUKON · 3,827 served · groundwaternone on record
CARTER LAKE WATER DISTRICT · CARTER LAKE · 3,791 served · purchased surface waternone on record
EMMETSBURG MUNICIPAL WATER DEPARTMENT · EMMETSBURG · 3,733 served · groundwaternone on record
WEST BURLINGTON MUNI. WATER SUPPLY · WEST BURLINGTON · 3,728 served · purchased surface waternone on record
ALBIA MUNICIPAL WATER WORKS · ALBIA · 3,721 served · purchased surface waternone on record
OSAGE MUNICIPAL WATER SUPPLY · OSAGE · 3,637 served · groundwaternone on record
EAGLE GROVE WATER SUPPLY · EAGLE GROVE · 3,601 served · groundwaternone on record
WEST CENTRAL RWA - NISH SYSTEM · MANNING · 3,573 served · groundwaternone on record
SOUTHWEST REG WATER DISTRICT (RED OAK) · RED OAK · 3,500 served · groundwaternone on record
NEW HAMPTON WATER SUPPLY · NEW HAMPTON · 3,494 served · groundwaternone on record
XENIA RWD (WOODWARD) · WOODWARD · 3,465 served · purchased surface waternone on record
STORY CITY WATER DEPT · STORY CITY · 3,357 served · groundwaternone on record
WILLIAMSBURG PUBLIC WATER SUPPLY · WILLIAMSBURG · 3,345 served · groundwaternone on record
CHEROKEE RWS - CHEROKEE SUBSYSTEM · CHEROKEE · 3,315 served · groundwaternone on record
TIPTON WATER SUPPLY · TIPTON · 3,149 served · groundwaternone on record
TAMA WATER SUPPLY · TAMA · 3,130 served · groundwaternone on record
GARNER WATER WORKS · GARNER · 3,065 served · groundwaternone on record
SOLON WATER DEPT · SOLON · 3,018 served · groundwaternone on record
WILTON WATER SUPPLY · WILTON · 2,924 served · groundwaternone on record
ONAWA MUNICIPAL WATER PLANT · ONAWA · 2,906 served · groundwaternone on record
LAKE PANORAMA WATER COMPANY · PANORA · 2,900 served · groundwaternone on record
SIBLEY PUBLIC WATER SUPPLY · SIBLEY · 2,860 served · purchased groundwaternone on record
FAIRFAX WATER SUPPLY · FAIRFAX · 2,828 served · groundwaternone on record
CLARION WATER SUPPLY · CLARION · 2,810 served · groundwaternone on record
GRUNDY CENTER WATER SUPPLY · GRUNDY CENTER · 2,796 served · purchased groundwaternone on record
BLOOMFIELD MUNI WATER DEPT · BLOOMFIELD · 2,792 served · purchased surface waternone on record
HAWARDEN WATER SUPPLY · HAWARDEN · 2,700 served · groundwaternone on record
MISSOURI VALLEY WATER SUPPLY · MISSOURI VALLEY · 2,678 served · groundwaternone on record
ELDORA WATER SUPPLY · ELDORA · 2,664 served · groundwaternone on record
KALONA WATER DEPT · KALONA · 2,630 served · groundwaternone on record
ROCK RAPIDS MUNICIPAL WATER WORKS · ROCK RAPIDS · 2,611 served · groundwaternone on record
SIRWA - CORNING · BROOKS · 2,585 served · purchased surface waternone on record
CENTER POINT WATER SUPPLY · CENTER POINT · 2,579 served · groundwaternone on record
HUDSON WATER SUPPLY · HUDSON · 2,546 served · purchased groundwaternone on record
WEST UNION WATER SUPPLY · WEST UNION · 2,540 served · groundwaternone on record
POSTVILLE WATER DEPARTMENT · POSTVILLE · 2,513 served · groundwaternone on record
WEST BRANCH WATER WORKS · WEST BRANCH · 2,509 served · groundwaternone on record
JESUP MUNICIPAL WATER SUPPLY · JESUP · 2,508 served · groundwaternone on record
POWESHIEK WATER ASSOCIATION (IAC) · SOUTH AMANA · 2,490 served · groundwaternone on record
BELMOND WATER SUPPLY · BELMOND · 2,463 served · groundwaternone on record
MARENGO WATER SUPPLY · MARENGO · 2,435 served · groundwaternone on record
W CENTRAL RWA - DENISON SUBSYS · DENISON · 2,428 served · purchased groundwaternone on record
OGDEN MUNICIPAL UTILITIES · OGDEN · 2,419 served · groundwaternone on record
PARK VIEW WATER & SANITARY DISTRICT · ELDRIDGE · 2,389 served · groundwaternone on record
CASCADE MUNICIPAL WATER SUPPLY · CASCADE · 2,386 served · groundwaternone on record
HULL WATER SUPPLY · HULL · 2,384 served · purchased groundwaternone on record
BELLE PLAINE WATER DEPT · BELLE PLAINE · 2,380 served · groundwaternone on record
ELY WATER SUPPLY · ELY · 2,328 served · groundwaternone on record
COLFAX WATER SUPPLY · COLFAX · 2,305 served · groundwaternone on record
LA PORTE CITY UTILITIES · LA PORTE CITY · 2,284 served · groundwaternone on record
PEOSTA WATER SUPPLY · PEOSTA · 2,278 served · groundwaternone on record
ROCKWELL CITY WATER SUPPLY · ROCKWELL CITY · 2,250 served · groundwaternone on record
LISBON WATER SUPPLY · LISBON · 2,233 served · groundwaternone on record
LAKE MILLS MUNICIPAL WATER DEPT-SOUTH · LAKE MILLS · 2,158 served · groundwaternone on record
OSCEOLA RURAL WATER SYSTEM-SOUTH · SUTHERLAND · 2,112 served · groundwaternone on record
WAPELLO MUNICIPAL WATER WORKS · WAPELLO · 2,096 served · groundwaternone on record
SAC CITY MUNICIPAL WATER PLANT · SAC CITY · 2,093 served · groundwaternone on record
ALTA MUNICIPAL WATER PLANT · ALTA · 2,087 served · groundwaternone on record
NORTHWOOD WATERWORKS · NORTHWOOD · 2,072 served · groundwaternone on record
BRITT WATER WORKS · BRITT · 2,064 served · groundwaternone on record
AUDUBON WATER SUPPLY · AUDUBON · 2,053 served · groundwaternone on record
IDA GROVE WATER UTILITY · IDA GROVE · 2,051 served · groundwaternone on record
SUMNER WATER SUPPLY · SUMNER · 2,030 served · groundwaternone on record
EPWORTH WATER SUPPLY · EPWORTH · 2,023 served · groundwaternone on record
PARKERSBURG WATER SUPPLY · PARKERSBURG · 2,019 served · groundwaternone on record
MONROE WATER SUPPLY · MONROE · 2,007 served · purchased groundwaternone on record
SIGOURNEY MUNI WATER WORKS · SIGOURNEY · 2,004 served · groundwaternone on record
POWESHIEK WATER ASSOCIATION (CR) · NORWAY · 2,000 servednone on record
DENVER WATER SUPPLY · DENVER · 1,919 served · groundwaternone on record
NEW LONDON MUNIC WATER DEPT · NEW LONDON · 1,910 served · groundwaternone on record
DALLAS CENTER WATER SUPPLY · DALLAS CENTER · 1,901 served · groundwaternone on record
POCAHONTAS WATER DEPARTMENT · POCAHONTAS · 1,877 served · groundwaternone on record
DURANT WATER SUPPLY · DURANT · 1,871 served · groundwaternone on record
COLUMBUS JUNCTION WATER SUPPLY · COLUMBUS JUNCTION · 1,830 served · groundwaternone on record
GUTTENBERG WATER UTILITY · GUTTENBERG · 1,817 served · groundwaternone on record
STUART WATER SUPPLY · STUART · 1,814 served · purchased surface waternone on record
PARK VIEW VILLAGE · GRIMES · 1,800 served · purchased groundwaternone on record
LYON-SIOUX RWS-DOON · DOON · 1,765 served · groundwaternone on record
PONDEROSA UTILITIES INC. · MONTEZUMA · 1,750 served · purchased groundwaternone on record
LAKE CITY WATER SUPPLY · LAKE CITY · 1,731 served · groundwaternone on record
WEST CENTRAL RWA-BOYER SYSTEM · WALL LAKE · 1,715 served · groundwaternone on record
MANSON WATER SUPPLY · MANSON · 1,709 served · groundwaternone on record
PRAIRIE CITY WATER WORKS · PRAIRIE CITY · 1,703 served · groundwaternone on record
AVOCA WATER WORKS · AVOCA · 1,697 served · purchased groundwaternone on record
MEDIAPOLIS WATER SUPPLY · MEDIAPOLIS · 1,688 served · purchased surface waternone on record
MOVILLE WATER SUPPLY · MOVILLE · 1,687 served · groundwaternone on record
MOUNT AYR WATER TREATMENT PLANT · MOUNT AYR · 1,683 served · purchased surface waternone on record
REMSEN MUNICIPAL UTILITIES · REMSEN · 1,678 served · groundwaternone on record
REINBECK WATER SUPPLY · REINBECK · 1,662 served · groundwaternone on record
GRANGER MUNI WATER SUPPLY · GRANGER · 1,654 served · groundwaternone on record
WOODBINE WATER DEPARTMENT · WOODBINE · 1,625 served · groundwaternone on record
CORYDON WATER SUPPLY · CORYDON · 1,610 served · purchased surface waternone on record
HARTLEY MUNICIPAL WATER DEPARTMENT · HARTLEY · 1,605 served · groundwaternone on record
ACKLEY MUNICIPAL WATER WORKS · ACKLEY · 1,599 served · groundwaternone on record
GUTHRIE CENTER MUNI WATER WORK · GUTHRIE CENTER · 1,593 served · groundwaternone on record
TRAER MUNICIPAL WATER PLANT · TRAER · 1,583 served · groundwaternone on record
AKRON, CITY OF · AKRON · 1,558 served · groundwaternone on record
URBAN BLUFFS - NORTH · COUNCIL BLUFFS · 1,558 served · purchased surface waternone on record
WALCOTT WATERWORKS · WALCOTT · 1,556 served · groundwaternone on record
URBANA WATER SUPPLY · URBANA · 1,554 served · groundwaternone on record
NASHUA WATER SUPPLY · NASHUA · 1,551 served · groundwaternone on record
MONTEZUMA MUNI WATER SUPPLY · MONTEZUMA · 1,545 served · groundwaternone on record
BEDFORD WATER WORKS · BEDFORD · 1,533 served · purchased surface waternone on record
LYON-SIOUX RWS-BIG SIOUX · ROCK RAPIDS · 1,530 served · groundwaternone on record
OAKLAND MUNIC WATER UTILITY · OAKLAND · 1,524 served · groundwaternone on record
WELLMAN MUNICIPAL WATERWORKS · WELLMAN · 1,524 served · groundwaternone on record
BROOKLYN WATER DEPARTMENT · BROOKLYN · 1,505 served · purchased groundwaternone on record
HOLSTEIN, CITY OF · HOLSTEIN · 1,501 served · groundwaternone on record
MONONA MUNICIPAL WATER DEPT · MONONA · 1,471 served · groundwaternone on record
LENOX WATER SUPPLY · LENOX · 1,470 served · purchased surface waternone on record
RATHBUN REGIONAL WATER (MOUNT PLEASANT) · MOUNT PLEASANT · 1,465 served · purchased surface waternone on record
CHEROKEE RWS- MILL CREEK SUBSYSTEM · CHEROKEE · 1,451 served · groundwaternone on record
EARLHAM MUNICIPAL WATERWORKS · EARLHAM · 1,446 served · purchased surface waternone on record
STATE CENTER MUNI WATER DEPT · STATE CENTER · 1,411 served · groundwaternone on record
PALO WATER SUPPLY · PALO · 1,407 served · groundwaternone on record
LOGAN WATER SUPPLY · LOGAN · 1,397 served · groundwaternone on record
KINGSLEY WATER SUPPLY · KINGSLEY · 1,396 served · groundwaternone on record
ROLAND WATER SUPPLY · ROLAND · 1,394 served · groundwaternone on record
SANBORN WATER SUPPLY · SANBORN · 1,392 served · groundwaternone on record
MANNING WATER SUPPLY · MANNING · 1,392 served · groundwaternone on record
SIRWA #3 (LEON) · DECATUR CITY · 1,373 served · purchased surface waternone on record
NORA SPRINGS WATER SUPPLY · NORA SPRINGS · 1,369 served · groundwaternone on record
MAHASKA RURAL WATER (NEW SHARON) · NEW SHARON · 1,368 served · groundwaternone on record
LONE TREE MUNI WATER SYSTEM · LONE TREE · 1,357 served · groundwaternone on record
DIKE WATER SUPPLY · DIKE · 1,306 served · purchased groundwaternone on record
LAURENS WATER SUPPLY · LAURENS · 1,301 served · groundwaternone on record
LAKE RIDGE, INCORPORATED · IOWA CITY · 1,300 served · groundwaternone on record
DYSART WATER SUPPLY · DYSART · 1,281 served · purchased groundwaternone on record
SHELL ROCK MUNI WATER SUPP · SHELL ROCK · 1,269 served · groundwaternone on record
MANLY WATER SUPPLY · MANLY · 1,266 served · groundwaternone on record
CENTRAL CITY WATER SUPPLY · CENTRAL CITY · 1,264 served · groundwaternone on record
FAYETTE WATER SUPPLY · FAYETTE · 1,256 served · groundwaternone on record
CLARKSVILLE WATER SUPPLY · CLARKSVILLE · 1,254 served · groundwaternone on record
ALTON MUNICIPAL WATER DEPARTMENT · ALTON · 1,248 served · purchased groundwaternone on record
COON RAPIDS MUNICIPAL UTILITIES · COON RAPIDS · 1,242 served · groundwaternone on record
ANAMOSA STATE PENITENTIARY · ANAMOSA · 1,230 served · groundwaternone on record
ELKADER MUNI WATER DEPT · ELKADER · 1,219 served · groundwaternone on record
JEWELL WATER SUPPLY · JEWELL · 1,216 served · groundwaternone on record
MELCHER-DALLAS WATER SUPPLY · MELCHER-DALLAS · 1,213 served · groundwaternone on record
TRIPOLI WATER SUPPLY · TRIPOLI · 1,191 served · groundwaternone on record
LYON-SIOUX RWS-ROCK RAPIDS · ROCK RAPIDS · 1,187 served · purchased groundwaternone on record
BUFFALO WATER SUPPLY · BUFFALO · 1,176 served · groundwaternone on record
CAMP DODGE WATER SUPPLY · JOHNSTON · 1,169 served · groundwaternone on record
LAKE PARK MUNICIPAL UTILITIES · LAKE PARK · 1,167 served · purchased groundwaternone on record
SPRINGVILLE WATER SUPPLY · SPRINGVILLE · 1,164 served · groundwaternone on record
ST ANSGAR WATER SUPPLY · SAINT ANSGAR · 1,161 served · groundwaternone on record
STRAWBERRY POINT WATER SUPPLY · STRAWBERRY POINT · 1,155 served · groundwaternone on record
PANORA WATER WORKS · PANORA · 1,142 served · surface waternone on record
GLIDDEN WATER SUPPLY · GLIDDEN · 1,140 served · groundwaternone on record
LAKE VIEW WATER SUPPLY · LAKE VIEW · 1,133 served · groundwaternone on record
VILLISCA MUNICIPAL WATER DEPT · VILLISCA · 1,132 served · groundwaternone on record
SHEFFIELD WATER SUPPLY · SHEFFIELD · 1,130 served · groundwaternone on record
CALMAR WATER SUPPLY · CALMAR · 1,125 served · groundwaternone on record
MAPLETON MUNICIPAL WATER PLANT · MAPLETON · 1,124 served · groundwaternone on record
ARNOLDS PARK WATER DEPARTMENT · ARNOLDS PARK · 1,113 served · purchased surface waternone on record
CONRAD WATER SUPPLY · CONRAD · 1,098 served · purchased groundwaternone on record
GEORGE WATER SUPPLY · GEORGE · 1,082 served · groundwaternone on record
MARCUS WATER SUPPLY · MARCUS · 1,079 served · groundwaternone on record
SIDNEY WATER SUPPLY · SIDNEY · 1,077 served · surface waternone on record
VAN METER MUNICIPAL WATER WORK · VAN METER · 1,074 served · groundwaternone on record
ROCKWELL WATER SUPPLY · ROCKWELL · 1,071 served · groundwaternone on record
NORTH ENGLISH WATER DEPARTMENT · NORTH ENGLISH · 1,065 served · groundwaternone on record
RIVERSIDE WATER SUPPLY · RIVERSIDE · 1,060 served · groundwaternone on record
TREYNOR WATER DEPARTMENT · TREYNOR · 1,049 served · groundwaternone on record
SLOAN WATER SUPPLY · SLOAN · 1,042 served · groundwaternone on record
CLARENCE WATER SUPPLY · CLARENCE · 1,039 served · groundwaternone on record
WINFIELD MUNI WATER DEPT · WINFIELD · 1,035 served · groundwaternone on record
DUNLAP WATER SUPPLY · DUNLAP · 1,035 served · groundwaternone on record
JANESVILLE WATER SUPPLY · JANESVILLE · 1,034 served · purchased groundwaternone on record
AUTUMN RIDGE ESTATES MHP · ANKENY · 1,032 served · purchased surface waternone on record
MECHANICSVILLE WATER DEPT · MECHANICSVILLE · 1,020 served · groundwaternone on record
TABOR WATER SUPPLY · TABOR · 1,014 served · groundwaternone on record
GRISWOLD WATER SUPPLY · GRISWOLD · 1,008 served · groundwaternone on record
EAGLE RIDGE · MARION · 1,005 served · purchased groundwaternone on record
BAXTER WATER SUPPLY · BAXTER · 1,002 served · purchased groundwaternone on record
PAULLINA MUNICIPAL WATER SUPPLY · PAULLINA · 996 served · groundwaternone on record
ODEBOLT WATER SUPPLY · ODEBOLT · 994 served · groundwaternone on record
GREENE MUNI WATER SUPPLY · GREENE · 994 served · groundwaternone on record
YES FIVE SEASONS CEDAR LLC · CEDAR RAPIDS · 994 servednone on record
LAWTON WATER SUPPLY · LAWTON · 988 served · groundwaternone on record
FREDERICKSBURG WATER SUPPLY · FREDERICKSBURG · 987 served · groundwaternone on record
ANITA MUNICIPAL UTILITIES · ANITA · 972 served · groundwaternone on record
AURELIA WATER SUPPLY · AURELIA · 968 served · groundwaternone on record
ALLISON WATER SUPPLY · ALLISON · 966 served · groundwaternone on record
WAYLAND WATER SUPPLY · WAYLAND · 966 served · groundwaternone on record
KEOSAUQUA WATER WORKS · KEOSAUQUA · 961 served · purchased surface waternone on record
SHELLSBURG WATER SUPPLY · SHELLSBURG · 961 served · groundwaternone on record
GOWRIE MUNI UTILITIES WATER DEPT · GOWRIE · 954 served · groundwaternone on record
PRESTON MUNI WATER SUPPLY · PRESTON · 949 served · groundwaternone on record
EDGEWOOD WATER SUPPLY · EDGEWOOD · 939 served · groundwaternone on record
HINTON WATER SUPPLY · HINTON · 935 served · groundwaternone on record
ALPINE PARK · DUBUQUE · 932 served · purchased groundwaternone on record
SIOUX RAPIDS WATER DEPARTMENT · SIOUX RAPIDS · 932 served · groundwaternone on record
INWOOD WATER SUPPLY · INWOOD · 928 served · purchased groundwaternone on record
ELDON WATER SUPPLY · ELDON · 927 served · purchased groundwaternone on record
LARCHWOOD WATER SUPPLY · LARCHWOOD · 926 served · purchased groundwaternone on record
WEST POINT MUNI WATER SYSTEM · WEST POINT · 921 served · purchased surface waternone on record
ARMSTRONG WATER SUPPLY · ARMSTRONG · 918 served · groundwaternone on record
MODERN MANOR, INC · IOWA CITY · 915 served · groundwaternone on record
LE GRAND WATER WORKS · LE GRAND · 910 served · purchased groundwaternone on record
NEWELL WATER TREATMENT PLANT · NEWELL · 906 served · groundwaternone on record
NEOLA LIGHT & WATER · NEOLA · 906 served · groundwaternone on record
PRIMGHAR MUNICIPAL WATER SUPPLY · PRIMGHAR · 902 served · groundwaternone on record
SULLY MUNI WATER WORKS · SULLY · 900 served · purchased groundwaternone on record
GRAETTINGER MUNICIPAL WATER SUPPLY · GRAETTINGER · 897 served · groundwaternone on record
KEOTA WATER DEPT · KEOTA · 897 served · groundwaternone on record
HAMBURG WATER SUPPLY · HAMBURG · 890 served · groundwaternone on record
ELKHART WATER SUPPLY · ELKHART · 882 served · groundwaternone on record
VICTOR MUNICIPAL WATER DEPT · VICTOR · 875 served · groundwaternone on record
HILLS WATER SUPPLY · HILLS · 863 served · groundwaternone on record
HUBBARD WATER SUPPLY · HUBBARD · 860 served · groundwaternone on record
MAXWELL WATER DEPARTMENT · MAXWELL · 859 served · groundwaternone on record
BUFFALO CENTER MUNI WATER DEPT · BUFFALO CENTER · 857 served · groundwaternone on record
COLO WATER SUPPLY · COLO · 853 served · purchased groundwaternone on record
MARION VILLAGE · MARION · 850 served · purchased groundwaternone on record
READLYN WATER SUPPLY · READLYN · 845 served · groundwaternone on record
DUNKERTON MUNI WATER SUPPLY · DUNKERTON · 842 served · groundwaternone on record
WINTHROP WATER SUPPLY · WINTHROP · 840 served · groundwaternone on record
LONG GROVE MUNI WATER SUPPLY · LONG GROVE · 838 served · groundwaternone on record
CAMBRIDGE WATER SUPPLY · CAMBRIDGE · 832 served · groundwaternone on record
LAKESIDE ESTATES LLC · CARTER LAKE · 823 served · purchased surface waternone on record
MIDWEST COUNTRY ESTATES · WAUKEE · 820 served · purchased surface waternone on record
RICEVILLE WATER SUPPLY · RICEVILLE · 816 served · groundwaternone on record
ADAIR MUNICIPAL WATER SUPPLY · ADAIR · 809 served · groundwaternone on record
LOWDEN WATER SUPPLY · LOWDEN · 807 served · groundwaternone on record
SCHLESWIG MUNIC WATER SUPPLY · SCHLESWIG · 803 served · purchased groundwaternone on record
OSSIAN WATER SUPPLY · OSSIAN · 802 served · groundwaternone on record
GLADBROOK WATER SUPPLY · GLADBROOK · 799 served · purchased groundwaternone on record
GILBERTVILLE WATER WORKS · GILBERTVILLE · 796 served · groundwaternone on record
MILO PUBLIC WATER SUPPLY · MILO · 788 served · purchased surface waternone on record
VAN HORNE WATER WORKS · VAN HORNE · 779 servednone on record
RUTHVEN WATER SUPPLY · RUTHVEN · 779 served · groundwaternone on record
OKOBOJI WATER SUPPLY · OKOBOJI · 776 served · purchased surface waternone on record
FREEPORT WATER DISTRICT · DECORAH · 775 served · groundwaternone on record
DAYTON MUNICIPAL WATER SUPPLY · DAYTON · 772 served · groundwaternone on record
WEST BEND WATER DEPARTMENT · WEST BEND · 772 served · groundwaternone on record
DAKOTA CITY WATER SUPPLY · DAKOTA CITY · 769 served · groundwaternone on record
WALNUT MUNICIPAL UTILITIES · WALNUT · 768 served · groundwaternone on record
CORRECTIONVILLE WATER SUPPLY · CORRECTIONVILLE · 766 served · groundwaternone on record
CARSON WATER SUPPLY · CARSON · 766 served · groundwaternone on record
MELBOURNE WATER SUPPLY · MELBOURNE · 765 served · purchased groundwaternone on record
GARNAVILLO WATER SUPPLY · GARNAVILLO · 763 served · groundwaternone on record
ALDEN WATER SUPPLY · ALDEN · 763 served · groundwaternone on record
ROCKFORD WATER SUPPLY · ROCKFORD · 762 served · groundwaternone on record
WESTERN HILLS (MOBILE) ESTATES · CORALVILLE · 760 served · groundwaternone on record
MANILLA MUNI SERVICE DEPT · MANILLA · 758 served · groundwaternone on record
MORNING SUN WATER DEPARTMENT · MORNING SUN · 752 served · groundwaternone on record
MCGREGOR WATER DEPT · MCGREGOR · 747 served · groundwaternone on record
REDFIELD WATER WORKS · REDFIELD · 746 served · groundwaternone on record
HEDRICK WATER SUPPLY · HEDRICK · 728 served · purchased groundwaternone on record
SHELBY WATER SUPPLY · SHELBY · 727 served · groundwaternone on record
WHITING WATER SUPPLY · WHITING · 727 served · groundwaternone on record
GRAND JCT MUNICIPAL WATER DEPT · GRAND JUNCTION · 725 served · groundwaternone on record
EARLVILLE MUNI WATER SUPPLY · EARLVILLE · 724 served · groundwaternone on record
ESSEX WATER SUPPLY · ESSEX · 722 served · groundwaternone on record
OXFORD WATER SUPPLY · OXFORD · 722 served · groundwaternone on record
WELLSBURG WATER SUPPLY · WELLSBURG · 721 served · purchased groundwaternone on record
HOSPERS MUNICIPAL WATER DEPT · HOSPERS · 718 servednone on record
MERRILL MUNICIPAL WATER SUPPLY · MERRILL · 717 served · groundwaternone on record
VENTURA WATER WORKS · VENTURA · 716 served · groundwaternone on record
HAZLETON WATER SUPPLY · HAZLETON · 713 served · groundwaternone on record
TIMBERLINE ESTATES, LTD. · WEST BURLINGTON · 712 served · groundwaternone on record
BANCROFT WATER SUPPLY · BANCROFT · 711 served · groundwaternone on record
YES REGENCY MANOR LLC · DES MOINES · 710 served · purchased surface waternone on record
STRATFORD MUNI WATER DEPT · STRATFORD · 707 served · groundwaternone on record
Source: U.S. EPA Safe Drinking Water Information System (SDWIS). "Health-based" counts maximum-contaminant-level, treatment-technique and maximum-residual-disinfectant-level violations recorded since 2015. A violation on record — especially a resolved one — is not a statement about water quality today; contact the water system or your state drinking-water program for current information.