Systems reaching a study comparison level
4.4%9 of 205 active community water systems with complete monitoring
All 205 systems had complete monitoring. 9 reached at least one study comparison level; 196 did not. “Study comparison level” means the dated EPA technical cutoff used in this January 2026 research release. It does not determine household exposure, health risk, or current legal compliance.
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Find your water system
ZIP codes are used only to route visitors to public water systems that reported serving them. Confirm the actual provider using a water bill or utility record.
Compound summary
System counts in Kentucky
Each count shows how many included water systems reached the named study level.
| Study comparison | Systems reaching level | Water systems included | Percent |
|---|---|---|---|
| PFOA: study level 4.05 ppt (April 2024 EPA level: 4 ppt) | 5 | 205 | 2.4% |
| PFOS: study level 4.05 ppt (April 2024 EPA level: 4 ppt) | 4 | 205 | 2.0% |
| PFHxS: study level 15 ppt (April 2024 EPA level: 10 ppt) | 0 | 205 | 0.0% |
| PFNA: study level 15 ppt (April 2024 EPA level: 10 ppt) | 0 | 205 | 0.0% |
| HFPO-DA: study level 15 ppt (April 2024 EPA level: 10 ppt) | 0 | 205 | 0.0% |
| Hazard Index: study level 1.5 with at least two detected components (April 2024 EPA level: 1) | 0 | 205 | 0.0% |
System directory
Community water systems with complete monitoring
Each PWSID appears once, preventing double counting across ZIP associations.
| Public water system | PWSID | Population served | Primary source | Sampling locations | Study comparison |
|---|---|---|---|---|---|
| ALBANY WATER WORKS | KY0270003 | 9,042 | Surface water | 1 | Below the study levels |
| ALLEN COUNTY WATER DISTRICT | KY0020956 | 16,398 | Surface water purchased | 2 | Below the study levels |
| ARLINGTON WATER DEPARTMENT | KY0200009 | 301 | Ground water | 1 | Below the study levels |
| ASHLAND WATER WORKS | KY0100011 | 44,402 | Surface water | 1 | Below the study levels |
| BARBOURVILLE UTILITIES | KY0610016 | 16,420 | Surface water | 1 | Below the study levels |
| BARDSTOWN MUNICIPAL WATER DEPT | KY0900017 | 31,185 | Surface water | 1 | Below the study levels |
| BARKLEY LAKE WATER DISTRICT | KY1110019 | 14,284 | Surface water | 1 | Below the study levels |
| BATH COUNTY WATER DISTRICT | KY0060022 | 10,083 | Surface water purchased | 3 | Below the study levels |
| BEAVER DAM MUNICIPAL WATER & SEWER | KY0920025 | 3,901 | Ground water | 2 | Below the study levels |
| BENHAM WATER PLANT | KY0480028 | 855 | Surface water | 1 | Below the study levels |
| BENTON WATER & SEWER | KY0790029 | 7,981 | Ground water | 1 | Below the study levels |
| BEREA MUNICIPAL UTILITIES | KY0760030 | 9,972 | Surface water | 1 | Below the study levels |
| BIG SANDY WATER DISTRICT | KY0100944 | 13,044 | Surface water purchased | 4 | Below the study levels |
| BLOOMFIELD WATER & SEWER DEPT | KY0900031 | 5,771 | Surface water purchased | 1 | Below the study levels |
| BOONE CO WATER & SEWER DISTRICT | KY0080034 | 66,300 | Surface water purchased | 1 | Below the study levels |
| BOONEVILLE WATER AND SEWER | KY0950036 | 5,346 | Surface water | 1 | Below the study levels |
| BOWLING GREEN MUNICIPAL UTILITIES | KY1140038 | 53,601 | Surface water | 1 | Below the study levels |
| BRACKEN COUNTY WATER DISTRICT | KY0120039 | 6,456 | Ground water purchased | 1 | Below the study levels |
| BRANDENBURG WATER WORKS | KY0820041 | 2,880 | Ground water | 1 | Below the study levels |
| BREATHITT CO WATER DISTRICT | KY0131012 | 5,068 | Surface water purchased | 2 | Below the study levels |
| BRONSTON WATER ASSOCIATON INC | KY1000043 | 5,114 | Surface water purchased | 1 | Below the study levels |
| BUFFALO TRAIL WATER ASSOC | KY0810046 | 4,514 | Surface water purchased | 2 | Below the study levels |
| BUTLER COUNTY WATER SYSTEM INC | KY0160052 | 14,256 | Surface water | 1 | Below the study levels |
| CADIZ MUNICIPAL WATER CO | KY1110054 | 6,165 | Surface water | 1 | Below the study levels |
| CALDWELL COUNTY WATER DISTRICT | KY0170528 | 6,000 | Surface water purchased | 3 | Below the study levels |
| CALVERT CITY MUNICIPAL WATER DEPARTMENT | KY0790056 | 4,381 | Ground water | 1 | Below the study levels |
| CAMPBELLSVILLE MUNICIPAL WATER | KY1090060 | 24,874 | Surface water | 1 | Below the study levels |
| CAMPTON WATER SYSTEM | KY1190061 | 6,600 | Surface water | 1 | Below the study levels |
| CANNONSBURG WATER DISTRICT | KY0100064 | 8,953 | Surface water purchased | 2 | Below the study levels |
| CARROLL CO WATER DISTRICT #1 | KY0210066 | 5,934 | Ground water | 2 | Below the study levels |
| CARROLLTON UTILITIES | KY0210067 | 6,851 | Ground water | 2 | Below the study levels |
| CAVELAND ENVIRONMENTAL AUTHORITY, INC. | KY0050344 | 3,264 | Surface water purchased | 2 | Below the study levels |
| CAWOOD WATER DISTRICT | KY0480565 | 4,428 | Surface water | 1 | Below the study levels |
| CENTRAL CITY WATER & SEWER | KY0890071 | 5,601 | Surface water | 1 | Below the study levels |
| CHRISTIAN CO WATER DISTRICT | KY0240521 | 17,248 | Surface water purchased | 2 | Below the study levels |
| CITY OF SOUTH SHORE WATER WORKS | KY0450410 | 6,798 | Surface water purchased | 1 | Below the study levels |
| COLUMBIA/ADAIR UTILITIES DISTRICT | KY0011016 | 22,113 | Surface water | 3 | Below the study levels |
| CORBIN UTILITIES COMMISSION | KY1180085 | 16,065 | Surface water | 1 | Reached a study level |
| CRITTENDEN-LIVINGSTON CO WATER DISTRICT | KY0700532 | 9,571 | Surface water | 1 | Below the study levels |
| CUMBERLAND CO WATER DISTRICT | KY0290271 | 7,099 | Surface water purchased | 3 | Below the study levels |
| CUMBERLAND FALLS HIGHWAY WATER DISTRICT | KY1180093 | 9,498 | Surface water purchased | 2 | Below the study levels |
| CUMBERLAND MUNICIPAL WATER WORKS | KY0480092 | 2,843 | Surface water | 1 | Below the study levels |
| CYNTHIANA MUNICIPAL WATER WORKS | KY0490096 | 7,263 | Surface water | 1 | Reached a study level |
| DANVILLE CITY WATER WORKS | KY0110097 | 32,600 | Surface water | 1 | Below the study levels |
| DAWSON SPRINGS WATER & SEWER | KY0540958 | 2,631 | Surface water | 1 | Below the study levels |
| E DAVIESS CO WATER ASSOC INC | KY0300109 | 11,997 | Ground water purchased | 1 | Below the study levels |
| EAST CASEY CO WATER DISTRICT | KY0230556 | 12,460 | Surface water purchased | 4 | Below the study levels |
| EAST CLARK CO WATER DISTRICT | KY0250981 | 7,366 | Surface water purchased | 2 | Below the study levels |
| EAST LAUREL WATER DISTRICT | KY0630797 | 16,062 | Surface water purchased | 1 | Below the study levels |
| EAST LOGAN WATER DISTRICT | KY0710951 | 9,060 | Surface water purchased | 1 | Below the study levels |
| EAST PENDLETON WATER DISTRICT | KY0960112 | 5,515 | Surface water purchased | 2 | Below the study levels |
| EDDYVILLE WATER DEPARTMENT | KY0720113 | 3,843 | Surface water | 1 | Below the study levels |
| EDMONSON CO WATER DISTRICT | KY0310114 | 17,848 | Surface water | 2 | Below the study levels |
| EDMONTON WATER WORKS | KY0850115 | 8,515 | Surface water purchased | 2 | Below the study levels |
| ESTILL CO WATER DISTRICT | KY0330123 | 9,501 | Surface water purchased | 2 | Below the study levels |
| EUBANK WATER SYSTEM | KY1000124 | 12,492 | Surface water purchased | 1 | Below the study levels |
| FARMDALE WATER DISTRICT | KY0370128 | 8,203 | Surface water purchased | 2 | Below the study levels |
| FLATWOODS WATER COMPANY | KY0450132 | 9,649 | Surface water purchased | 2 | Below the study levels |
| FLEMING CO WATER ASSOCIATION | KY0350133 | 9,693 | Surface water purchased | 3 | Below the study levels |
| FLEMINGSBURG UTILITY SYSTEM | KY0350134 | 4,583 | Surface water | 1 | Below the study levels |
| FLORENCE WATER & SEWER | KY0080135 | 29,351 | Surface water purchased | 1 | Below the study levels |
| FRANKFORT PLANT BOARD | KY0370143 | 52,153 | Surface water | 1 | Below the study levels |
| FRANKLIN WATER WORKS, KY | KY1070144 | 31,602 | Surface water | 1 | Below the study levels |
| FRENCHBURG WATER COMPANY | KY0830148 | 5,401 | Surface water purchased | 1 | Below the study levels |
| FULTON MUNICIPAL WATER SYSTEM | KY0380149 | 4,662 | Ground water | 1 | Below the study levels |
| GALLATIN COUNTY WATER DISTRICT | KY0390130 | 5,860 | Ground water | 3 | Below the study levels |
| GARRARD CO WATER ASSOC INC | KY0400151 | 14,806 | Surface water purchased | 2 | Below the study levels |
| GEORGETOWN MUNICIPAL WATER SERVICE | KY1050157 | 44,608 | Surface water | 1 | Reached a study level |
| GLASGOW WATER COMPANY | KY0050929 | 36,766 | Surface water | 2 | Below the study levels |
| GRAND RIVERS WATER SYSTEM | KY0700162 | 3,980 | Surface water purchased | 1 | Below the study levels |
| GRAVES CO WATER DIST - CONSUMERS | KY0420084 | 5,016 | Ground water purchased | 1 | Below the study levels |
| GRAVES CO WATER DIST - HICKORY | KY0420194 | 4,069 | Ground water | 1 | Below the study levels |
| GRAYSON COUNTY WATER DISTRICT | KY0430616 | 20,033 | Surface water | 2 | Below the study levels |
| GRAYSON UTILITY COMMISSION | KY0220164 | 10,950 | Surface water | 2 | Below the study levels |
| GREEN RIVER VALLEY WATER DISTRICT | KY0500166 | 17,431 | Surface water | 1 | Below the study levels |
| GREEN TAYLOR WATER DISTRICT | KY0440167 | 15,497 | Surface water purchased | 4 | Below the study levels |
| GREENUP WATER SYSTEM | KY0450169 | 12,193 | Surface water | 1 | Below the study levels |
| GREENVILLE UTILITIES COMMISSION | KY0890170 | 5,649 | Surface water | 1 | Below the study levels |
| HARDIN CO. WATER DIST #1/FT. KNOX | KY0470990 | 23,600 | Surface water purchased | 1 | Below the study levels |
| HARDIN COUNTY WATER DISTRICT #1 | KY0470393 | 30,230 | Surface water | 1 | Below the study levels |
| HARDIN COUNTY WATER DISTRICT #2 | KY0470175 | 76,326 | Surface water | 3 | Below the study levels |
| HARDINSBURG RO WTP | KY0140966 | 18,437 | Ground water | 1 | Below the study levels |
| HARLAN MUNICIPAL WATER WORKS | KY0480178 | 4,574 | Surface water | 1 | Below the study levels |
| HARRISON CO WATER ASSOC | KY0490179 | 16,736 | Surface water purchased | 2 | Reached a study level |
| HARRODSBURG MUNICIPAL WATER DEPARTMENT | KY0840180 | 8,310 | Surface water | 1 | Below the study levels |
| HAZARD WATER DEPARTMENT | KY0970184 | 26,730 | Surface water | 1 | Below the study levels |
| HENDERSON COUNTY WATER DISTRICT | KY0510189 | 17,447 | Surface water purchased | 2 | Below the study levels |
| HENDERSON WATER UTILITY/NORTH | KY0510188 | 31,705 | Surface water | 1 | Below the study levels |
| HENRY COUNTY WATER DISTRICT #2 | KY0520192 | 17,716 | Ground water | 1 | Below the study levels |
| HOPKINSVILLE WATER ENVIRONMENT AUTHORITY | KY0240201 | 41,350 | Surface water | 1 | Below the study levels |
| HUSTONVILLE WATER WORKS | KY0690203 | 5,420 | Surface water purchased | 1 | Below the study levels |
| HYDEN LESLIE CO WATER DISTRICT | KY0660204 | 9,614 | Surface water | 1 | Below the study levels |
| IRVINE MUNICIPAL UTILITIES | KY0330205 | 5,649 | Surface water | 1 | Below the study levels |
| JACKSON CO WATER ASSOCIATION | KY0550209 | 13,629 | Surface water | 1 | Below the study levels |
| JAMESTOWN MUNICIPAL WATER WORKS | KY1040210 | 7,402 | Surface water | 1 | Below the study levels |
| JESSAMINE CO WATER DISTRICT #1 | KY0570214 | 6,831 | Surface water purchased | 1 | Below the study levels |
| JESSAMINE S ELKHORN WATER DIST | KY0570249 | 8,826 | Surface water purchased | 1 | Below the study levels |
| JONATHAN CREEK WATER DISTRICT | KY0790216 | 7,182 | Ground water | 1 | Below the study levels |
| JUDY WATER ASSOCIATION | KY0870147 | 5,539 | Surface water purchased | 2 | Below the study levels |
| KENTUCKY-AMERICAN WATER CO | KY0340250 | 669,042 | Surface water | 5 | Below the study levels |
| KIRKSVILLE WATER ASSOCIATION | KY0760672 | 5,940 | Surface water purchased | 1 | Below the study levels |
| KNOX COUNTY UTILITY COMMISSION | KY0610110 | 8,313 | Surface water | 1 | Below the study levels |
| LAGRANGE UTILITIES COMMISSION | KY0930481 | 10,067 | Ground water purchased | 1 | Below the study levels |
| LAUREL CO WATER DISTRICT #2 | KY0630238 | 16,899 | Surface water | 1 | Below the study levels |
| LAWRENCEBURG WATER & SEWER DEPT | KY0030239 | 14,748 | Surface water | 1 | Below the study levels |
| LEBANON WATER WORKS CO INC | KY0780241 | 7,642 | Surface water | 2 | Below the study levels |
| LEDBETTER WATER DISTRICT | KY0700243 | 2,729 | Surface water purchased | 2 | Below the study levels |
| LEITCHFIELD WATER WORKS | KY0430244 | 8,438 | Surface water | 1 | Below the study levels |
| LONDON UTILITY COMMISSION | KY0630255 | 8,855 | Surface water | 1 | Below the study levels |
| LOUISA WATER DEPARTMENT | KY0640257 | 8,236 | Surface water | 1 | Below the study levels |
| LOUISVILLE WATER COMPANY | KY0560258 | 806,997 | Surface water | 2 | Below the study levels |
| LYON COUNTY WATER DISTRICT | KY0720933 | 6,744 | Surface water purchased | 5 | Below the study levels |
| MADISON CO UTILITIES DISTRICT | KY0760224 | 25,120 | Surface water purchased | 1 | Below the study levels |
| MAGOFFIN COUNTY WATER DISTRICT | KY0770525 | 8,925 | Surface water purchased | 1 | Below the study levels |
| MAMMOTH CAVE/CENTRAL SYSTEM | KY0310940 | 5,000 | Surface water purchased | 1 | Below the study levels |
| MANCHESTER WATER WORKS, KY | KY0260737 | 11,349 | Surface water | 1 | Below the study levels |
| MARION COUNTY WATER DISTRICT | KY0780268 | 16,311 | Surface water purchased | 2 | Below the study levels |
| MARTIN CO WATER DISTRICT #1 | KY0800273 | 9,003 | Surface water | 1 | Below the study levels |
| MAYFIELD ELECTRIC & WATER | KY0420274 | 12,379 | Ground water | 1 | Below the study levels |
| MAYSVILLE UTILITY COMMISSION | KY0810275 | 11,263 | Surface water | 1 | Below the study levels |
| MCCREARY COUNTY WATER DISTRICT | KY0740276 | 34,439 | Surface water | 2 | Below the study levels |
| MCKINNEY WATER DISTRICT | KY0690278 | 5,423 | Surface water purchased | 2 | Below the study levels |
| MILTON WATER & SEWER DEPARTMENT | KY1120289 | 3,861 | Ground water | 1 | Below the study levels |
| MONROE COUNTY WATER DISTRICT | KY0860150 | 9,608 | Surface water | 1 | Below the study levels |
| MONTICELLO WATER & SEWER COMMISSION | KY1160291 | 21,000 | Surface water | 1 | Below the study levels |
| MOREHEAD STATE UNIVERSITY | KY1030480 | 6,500 | Surface water | 1 | Below the study levels |
| MOREHEAD UTILITY PLANT BOARD | KY1030292 | 9,052 | Surface water | 1 | Below the study levels |
| MORGAN COUNTY WATER DISTRICT | KY0880594 | 7,502 | Surface water purchased | 2 | Below the study levels |
| MORGANFIELD WATER WORKS | KY1130293 | 5,170 | Surface water | 1 | Below the study levels |
| MOUNTAIN WATER DIST | KY0980575 | 44,057 | Surface water | 1 | Below the study levels |
| MT STERLING WATER WORKS | KY0870298 | 16,391 | Surface water | 1 | Below the study levels |
| MT VERNON WATER WORKS | KY1020299 | 4,951 | Surface water | 1 | Below the study levels |
| MUHLENBERG CO WATER DISTRICT | KY0890302 | 16,845 | Surface water purchased | 1 | Below the study levels |
| MUHLENBERG CO WATER DISTRICT #3 | KY0890304 | 7,075 | Surface water purchased | 1 | Below the study levels |
| MURRAY WATER SYSTEM | KY0180306 | 26,302 | Ground water | 1 | Below the study levels |
| NEBO WATER DISTRICT | KY0540977 | 4,702 | Surface water purchased | 2 | Below the study levels |
| NICHOLAS CO WATER DISTRICT | KY0910314 | 4,089 | Surface water purchased | 4 | Below the study levels |
| NICHOLASVILLE WATER DEPARTMENT | KY0570315 | 35,266 | Surface water | 1 | Below the study levels |
| NORTH HOPKINS WATER DISTRICT | KY0540138 | 3,725 | Surface water purchased | 2 | Below the study levels |
| NORTH MANCHESTER WATER ASSOC | KY0260266 | 5,332 | Surface water purchased | 1 | Below the study levels |
| NORTH MARSHALL WATER DISTRICT #1 | KY0790319 | 16,276 | Ground water | 2 | Below the study levels |
| NORTH MCLEAN CO WATER DISTRICT | KY0300320 | 2,934 | Surface water purchased | 2 | Reached a study level |
| NORTH MERCER WATER DISTRICT | KY0840321 | 9,775 | Surface water purchased | 2 | Below the study levels |
| NORTH NELSON WATER DISTRICT | KY0900323 | 13,365 | Surface water purchased | 2 | Below the study levels |
| NORTHERN KENTUCKY WATER DISTRICT | KY0590220 | 259,949 | Surface water | 3 | Below the study levels |
| OAK GROVE UTILITIES OFFICE | KY0240329 | 8,762 | Surface water purchased | 1 | Below the study levels |
| OHIO COUNTY WATER DISTRICT | KY0920332 | 16,511 | Surface water | 1 | Below the study levels |
| OLDHAM COUNTY WATER DISTRICT | KY0930333 | 38,409 | Ground water | 1 | Below the study levels |
| OLIVE HILL MUNICIPAL WATER WORKS | KY0220335 | 6,192 | Surface water | 1 | Below the study levels |
| OWENSBORO MUNICIPAL UTILITIES | KY0300336 | 60,473 | Ground water | 1 | Below the study levels |
| PADUCAH WATER WORKS | KY0730533 | 65,004 | Surface water | 1 | Reached a study level |
| PAINTSVILLE MUNICIPAL WATER WORKS | KY0580340 | 24,354 | Surface water | 1 | Below the study levels |
| PARIS WATER WORKS | KY0090343 | 14,139 | Surface water | 1 | Below the study levels |
| PARKSVILLE WATER DISTRICT | KY0110345 | 4,261 | Surface water purchased | 1 | Below the study levels |
| PENDLETON CO WATER DISTRICT #1/SOUTH | KY0960499 | 3,713 | Surface water purchased | 1 | Below the study levels |
| PIKEVILLE WATER DEPARTMENT | KY0980350 | 9,638 | Surface water | 1 | Below the study levels |
| PINEVILLE WATER SYSTEM | KY0070353 | 16,573 | Surface water | 1 | Below the study levels |
| POWELL VALLEY WATER DISTRICT | KY0990357 | 7,128 | Surface water purchased | 2 | Below the study levels |
| PRESTONSBURG CITY UTILITIES | KY0360358 | 26,788 | Surface water | 1 | Below the study levels |
| PRINCETON WATER & SEWER COMMISSION | KY0170360 | 7,007 | Surface water | 1 | Below the study levels |
| PROVIDENCE WATER WORKS | KY1170361 | 4,538 | Surface water | 1 | Below the study levels |
| RICHMOND UTILITIES | KY0760370 | 35,640 | Surface water | 1 | Below the study levels |
| ROWAN WATER INC | KY1030375 | 18,765 | Surface water purchased | 1 | Below the study levels |
| RUSSELL SPRINGS WATER & SEWER | KY1040377 | 9,409 | Surface water purchased | 2 | Below the study levels |
| RUSSELL WATER COMPANY | KY0450376 | 5,181 | Surface water | 1 | Below the study levels |
| RUSSELLVILLE MUN WATER WORKS | KY0710378 | 8,613 | Surface water purchased | 1 | Below the study levels |
| S E DAVIESS CO WATER DISTRICT | KY0300387 | 33,655 | Ground water purchased | 2 | Reached a study level |
| SANDY HOOK WATER DISTRICT | KY0320383 | 3,528 | Ground water | 1 | Below the study levels |
| SCIENCE HILL WATER WORKS | KY1000362 | 5,940 | Surface water purchased | 1 | Below the study levels |
| SCOTTSVILLE WATER DEPARTMENT | KY0020386 | 6,864 | Surface water | 1 | Below the study levels |
| SEBREE WATER DEPARTMENT | KY1170388 | 1,743 | Surface water purchased | 2 | Below the study levels |
| SHARPSBURG WATER DISTRICT | KY0060392 | 4,332 | Surface water purchased | 2 | Below the study levels |
| SIMPSON COUNTY WATER DISTRICT | KY1070398 | 8,946 | Surface water purchased | 1 | Below the study levels |
| SO ANDERSON WATER DISTRICT | KY0030660 | 8,417 | Surface water purchased | 2 | Below the study levels |
| SO WOODFORD CO WATER DISTRICT | KY1200411 | 4,218 | Surface water purchased | 1 | Below the study levels |
| SOMERSET WATER SERVICE | KY1000403 | 29,700 | Surface water | 1 | Below the study levels |
| SOUTH HOPKINS WATER DISTRICT | KY0540406 | 8,440 | Surface water purchased | 2 | Below the study levels |
| SOUTH LOGAN WATER ASSOCIATION | KY0710707 | 5,198 | Surface water purchased | 1 | Below the study levels |
| SOUTHEASTERN WATER ASSOC/NELSON VALLEY | KY1000311 | 21,895 | Surface water purchased | 1 | Below the study levels |
| SOUTHERN WATER & SEWER DISTRICT | KY0360026 | 15,110 | Surface water | 2 | Below the study levels |
| SPRINGFIELD WATER WORKS | KY1150415 | 13,205 | Surface water | 1 | Below the study levels |
| STANFORD WATER WORKS | KY0690417 | 9,284 | Surface water | 1 | Below the study levels |
| STANTON WATER WORKS | KY0990418 | 6,611 | Surface water purchased | 1 | Below the study levels |
| STURGIS WATER WORKS | KY1130422 | 3,490 | Surface water purchased | 1 | Below the study levels |
| TODD COUNTY WATER DISTRICT | KY1100944 | 9,801 | Surface water purchased | 1 | Below the study levels |
| TRIMBLE CO WATER DISTRICT #1 | KY1120431 | 4,146 | Ground water | 1 | Below the study levels |
| US 60 WATER DISTRICT | KY1060436 | 7,892 | Surface water purchased | 1 | Below the study levels |
| VANCEBURG ELECTRIC PLANT BOARD | KY0680438 | 6,921 | Surface water purchased | 1 | Below the study levels |
| VERSAILLES WATER SYSTEM | KY1200439 | 17,822 | Surface water | 1 | Below the study levels |
| VINE GROVE WATER DEPARTMENT | KY0470440 | 6,703 | Surface water purchased | 1 | Below the study levels |
| WALTON WATERWORKS DEPARTMENT | KY0080442 | 4,173 | Surface water purchased | 1 | Below the study levels |
| WARREN COUNTY WATER DISTRICT | KY1140487 | 91,118 | Surface water purchased | 1 | Below the study levels |
| WATER SERVICE CORPORATION OF KENTUCKY | KY0070282 | 12,022 | Surface water | 1 | Below the study levels |
| WEBSTER CO WATER DISTRICT | KY1170995 | 5,940 | Surface water | 1 | Below the study levels |
| WEST LAUREL WATER ASSOC INC | KY0630451 | 14,878 | Surface water purchased | 1 | Below the study levels |
| WESTERN FLEMING WATER DISTRICT | KY0910675 | 4,262 | Surface water | 1 | Below the study levels |
| WESTERN LEWIS RECTORVILLE WATER DISTRICT | KY0810366 | 6,534 | Surface water purchased | 3 | Below the study levels |
| WESTERN PULASKI CO WATER DISTRICT | KY1000363 | 23,264 | Surface water purchased | 4 | Below the study levels |
| WESTERN ROCKCASTLE WATER ASSOC | KY1020891 | 12,623 | Surface water purchased | 1 | Below the study levels |
| WHITESBURG WATER WORKS | KY0670466 | 3,861 | Surface water | 1 | Below the study levels |
| WHITESVILLE WATER WORKS | KY0300467 | 3,672 | Ground water purchased | 1 | Reached a study level |
| WHITLEY CO WATER DISTRICT | KY1180468 | 9,825 | Surface water purchased | 3 | Reached a study level |
| WILLIAMSTOWN MUNICIPAL WATER DEPT | KY0410472 | 5,495 | Surface water | 1 | Below the study levels |
| WINCHESTER MUNICIPAL UTILITIES | KY0250473 | 29,823 | Surface water | 1 | Below the study levels |
| WOOD CREEK WATER DISTRICT | KY0630477 | 14,892 | Surface water | 1 | Below the study levels |
How the count works
What is included
Each active community water system with complete monitoring is counted once, even if it is linked with several ZIP codes. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system. This page does not apply Kentucky's state-specific standards or determine compliance. Use the official state or territory drinking-water program for current regulatory information.