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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
BELLEVUE CITY OF WA5305575 Washington Community 317,330
JEA: NORTH GRID FL2161327 Florida Community 316,476
CITY OF SANTA ANA CA3010038 California Community 310,539
PASSAIC VALLEY WATER COMMISSION NJ1605002 New Jersey Community 310,483
SACRAMENTO CITY-DIV WTR & SWR CA3410044 California Community 310,000
ST LOUIS CITY PWS MO6010715 Missouri Community 304,709
CHINO BASIN MWD CA3610094 California Community 300,000
KENTUCKY-AMERICAN WATER CO KY0340250 Kentucky Community 299,501
RIVERSIDE, CITY OF CA3310031 California Community 298,398
CLAYTON COUNTY WATER AUTHORITY GA0630000 Georgia Community 298,374
LINCOLN, CITY OF NE3110926 Nebraska Community 296,000
NEWARK WATER DEPARTMENT NJ0714001 New Jersey Community 294,274
SANTA CLARITA VALLEY WATER AGENCY CA1910240 California Community 294,090
COCOA, CITY OF FL3050223 Florida Community 294,039
OCUD/EASTERN WATER SYSTEM (2 WP) FL3484132 Florida Community 293,374
CITY OF PLANO TX0430007 Texas Community 292,059
GLEN BURNIE-BROADNECK MD0020017 Maryland Community 290,606
HOWARD COUNTY D.P.W. DISTRIBUTION MD0130002 Maryland Community 286,158
LEE COUNTY UTILITIES FL5364048 Florida Community 282,556
AKRON CITY PWS OH7700011 Ohio Community 280,000
MOBILE, BD. OF W&S COMM. OF THE CITY OF AL0001005 Alabama Community 279,000
GSWC - SOUTHWEST CA1910155 California Community 277,740
HELIX WATER DISTRICT CA3710010 California Community 277,668
RAYSTOWN LAKE ARMY CORPS OF EN PA4310001 Pennsylvania Transient Non-Community 276,200
OKLAHOMA CITY DRAPER OK1020802 Oklahoma Community 276,000
BUFFALO WATER AUTHORITY NY1400422 New York Community 276,000
MONTGOMERY (WW&SSB OF THE CITY OF) AL0001070 Alabama Community 276,000
E JEFFERSON WW DISTRICT 1 LA1051001 Louisiana Community 275,163
LUBBOCK PUBLIC WATER SYSTEM TX1520002 Texas Community 275,041
GRAND RAPIDS MI0002790 Michigan Community 273,005
SARASOTA CO SPECIAL UTIL DIST FL6581591 Florida Community 272,267
MADISON WATER UTILITY WI1130224 Wisconsin Community 272,000
VEOLIA WATER NEW YORK NY4303673 New York Community 270,000
COACHELLA VWD: COVE COMMUNITY CA3310001 California Community 270,000
FORT WAYNE - 3 RIVERS FILTRATION PLANT IN5202020 Indiana Community 269,994
CWS - BAKERSFIELD CA1510003 California Community 267,881
VEOLIA WATER IDAHO ID4010016 Idaho Community 264,978
NJ AMERICAN WATER - WESTERN NJ0327001 New Jersey Community 264,586
CITY OF IRVING TX0570050 Texas Community 264,546
HUNTSVILLE UTILITIES AL0000882 Alabama Community 262,158
JERSEY CITY MUA NJ0906001 New Jersey Community 262,000
CITY OF LAREDO TX2400001 Texas Community 260,046
COUNTY DISTRIBUTION SYSTEM VA4041165 Community 255,453
ONSET WATER VENDING MA4310010 Massachusetts Transient Non-Community 255,048
KNOXVILLE UTILITIES BOARD - KUB TN0000366 Tennessee Community 254,671
CLARKSVILLE WATER DEPARTMENT TN0000116 Tennessee Community 251,864
TEST SYSTEM UTAHTEST0 Community 250,250
CITY OF GARLAND TX0570010 Texas Community 248,822
SAN GABRIEL VALLEY WATER CO.-EL MONTE CA1910039 California Community 248,000
GILBERT, TOWN OF AZ0407092 Arizona Community 247,600