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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
YORK WATER CO PA7670100 Pennsylvania Community 206,762
OCUD/WESTERN REGIONAL WTR SYS (5 WPS) FL3481546 Florida Community 206,742
WORCESTER DPWP, WATER SUPPLY DIVISION MA2348000 Massachusetts Community 206,518
AUGUSTA-RICHMOND CO WS GA2450000 Georgia Community 204,000
WESTMINSTER CITY OF CO0101170 Colorado Community 202,078
CITY OF GRAND PRAIRIE TX0570048 Texas Community 201,843
AMARILLO MUNICIPAL WATER SYSTEM TX1880001 Texas Community 201,291
BROWNSVILLE PUBLIC UTILITIES BOARD TX0310001 Texas Community 201,249
CITY OF HUNTINGTON BEACH CA3010053 California Community 201,000
TALLAHASSEE, CITY OF FL1370655 Florida Community 200,480
OXNARD WATER DEPT CA5610007 California Community 200,232
ALDERWOOD WATER DISTRICT WA5301300 Washington Community 200,000
WEST VIEW WATER AUTHORITY PA5020043 Pennsylvania Community 200,000
MI. INT. SPEEDWAY GRANDSTAND MI4620040 Michigan Transient Non-Community 200,000
SALEM PUBLIC WORKS OR4100731 Oregon Community 199,820
NORTHERN KENTUCKY WATER DISTRICT KY0590220 Kentucky Community 199,460
CFPUA-WILMINGTON NC0465010 North Carolina Community 198,740
CLEVELAND,CITY OF-CROWN PLANT OH1800321 Ohio Community 198,665
CONTRA COSTA WATER DISTRICT CA0710003 California Community 198,000
GRU - MURPHREE WTP FL2010946 Florida Community 195,681
SACRAMENTO SUBURBAN WATER DISTRICT CA3410001 California Community 194,444
LAKELAND, CITY OF FL6531014 Florida Community 193,297
KALAMAZOO MI0003520 Michigan Community 192,992
SHREVEPORT WATER SYSTEM LA1017031 Louisiana Community 192,378
SYRACUSE CITY NY3304334 New York Community 192,000
CITY OF GEORGETOWN TX2460001 Texas Community 191,639
CITY OF STOCKTON CA3910012 California Community 191,302
SWEETWATER AUTHORITY CA3710025 California Community 191,282
MCALLEN PUBLIC UTILITY TX1080006 Texas Community 189,957
CITY OF JACKSON MS0250008 Mississippi Community 189,673
GLENDALE-CITY, WATER DEPT. CA1910043 California Community 188,784
PEORIA CITY OF AZ0407096 Arizona Community 187,676
PEMBROKE PINES, CITY OF FL4061083 Florida Community 187,459
COLO SPGS - CITY-PINE VLY PLNT CO0128967 Colorado Community 187,000
MARIN MUNICIPAL WATER DISTRICT CA2110002 California Community 186,895
FORT LAUDERDALE, CITY OF FL4060486 Florida Community 185,163
ONTARIO MUNICIPAL UTILITIES COMPANY CA3610034 California Community 185,010
WINSTON SALEM NEILSON PLANT NC0234015 North Carolina Community 185,000
SCWA - LAGUNA/VINEYARD CA3410029 California Community 184,896
DAYTON, CITY OF-MIAMI PLANT OH5700712 Ohio Community 184,000
SAN FRANCISCO INTERNATIONAL AIRPORT CA3810010 California Non-Transient Non-Community 183,386
AURORA IL0894070 Illinois Community 183,000
WESTERN VIRGINIA WATER AUTHORITY VA2770900 Virginia Community 182,700
EVANSVILLE WATER UTILITY IN5282002 Indiana Community 182,444
MCWA UPLAND SYSTEM NY2715672 New York Community 182,400
NORTH MIAMI BEACH FL4131618 Florida Community 180,000
FT COLLINS CITY OF CO0135291 Colorado Community 179,901
DALLAS FORT WORTH INTERNATIONAL AIRPORT TX0570136 Texas Non-Transient Non-Community 177,673
CALIFORNIA WATER SERVICE - STOCKTON CA3910001 California Community 176,266
HENRY COUNTY WATER AUTHORITY GA1510001 Georgia Community 176,038