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Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents
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Browse Water Systems

433,347 public water systems.

Public Water Systems Database

Browse 433,347 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

System Name PWSID State Type Population Served
EUGENE WATER & ELECTRIC BOARD OR4100287 Oregon Community 176,000
SANTA ROSA, CITY OF CA4910009 California Community 175,396
GEN'L WWKS OF S.FLA.-CONSUMERS FL4131613 Florida Community 174,580
CITY OF GARDEN GROVE CA3010062 California Community 174,226
CAPE CORAL, CITY OF FL5360325 Florida Community 172,693
CHARLOTTE COUNTY UTILITIES FL5084100 Florida Community 172,040
ARVADA CITY OF CO0130001 Colorado Community 171,610
OCEANSIDE, CITY OF CA3710014 California Community 171,483
NORTH ALAMO WSC TX1080029 Texas Community 171,195
MOULTON NIGUEL WATER DISTRICT CA3010073 California Community 170,236
ELSINORE VALLEY MWD CA3310012 California Community 169,455
LAFAYETTE UTILITIES WATER SYSTEM LA1055017 Louisiana Community 169,389
SAVANNAH-MAIN GA0510003 Georgia Community 168,958
SUBURBAN WATER SYSTEMS-SAN JOSE CA1910205 California Community 168,843
PWCSA - EAST VA6153600 Virginia Community 168,747
CORONA, CITY OF CA3310037 California Community 168,575
SANTA MARGARITA WATER DISTRICT CA3010101 California Community 168,289
SPRINGFIELD WATER AND SEWER COMMISSION MA1281000 Massachusetts Community 167,954
MELBOURNE, CITY OF FL3051447 Florida Community 167,753
UNION COUNTY WATER SYSTEM NC0190413 North Carolina Community 167,554
PARISH WATER COMPANY LA1033019 Louisiana Community 166,611
TUSCALOOSA WATER & SEWER AL0001313 Alabama Community 166,524
KENT WATER DEPARTMENT WA5338150 Washington Community 166,421
BOULDER CITY OF CO0107152 Colorado Community 166,080
LANSING BOARD OF WATER & LIGHT MI0003760 Michigan Community 166,000
CITY OF CHESAPEAKE - NORTHWEST RIVER SYS VA3550051 Virginia Community 165,240
TEMPE CITY OF AZ0407100 Arizona Community 165,000
PASADENA WATER AND POWER CA1910124 California Community 164,344
REDMOND WATER SYSTEM CITY OF WA5371650 Washington Community 163,335
CITY OF HAYWARD CA0110006 California Community 162,954
FORSYTH CO. WATER & SEWER GA1170050 Georgia Community 161,200
BAYSHORE DISTRICT NY5103247 New York Community 160,721
BAKERSFIELD, CITY OF CA1510031 California Community 160,144
RALEIGH CITY OF NC0392015 North Carolina Community 160,000
GREENSBORO TOWNSEND NC0241015 North Carolina Community 160,000
JOLIET IL1970450 Illinois Community 160,000
ALEXANDRIA, CITY OF VA6510010 Virginia Community 159,200
CITY OF SUNNYVALE CA4310014 California Community 157,566
ASHEVILLE CITY OF NC0111010 North Carolina Community 157,431
CITY OF MIDLAND WATER PURIFICATION PLANT TX1650001 Texas Community 157,000
ONSLOW WTR AND SEWER AUTHORITY NC0467035 North Carolina Community 156,755
NAPERVILLE IL0434670 Illinois Community 156,406
CITY OF ROSEVILLE CA3110008 California Community 155,612
DAVIDSON WATER INC NC0229025 North Carolina Community 153,632
KANSAS CITY BOARD OF PUBLIC UTILITIES KS2020906 Kansas Community 152,960
CALIFORNIA WATER SERVICE CO. - ELA CA1910036 California Community 152,474
ATLANTIC CITY MUA NJ0102001 New Jersey Community 152,415
CITY OF MESQUITE TX0570014 Texas Community 152,020
CITY OF PASADENA TX1010293 Texas Community 152,000
POMONA - CITY, WATER DEPT. CA1910126 California Community 151,713