Systems reaching a study comparison level
6.3%15 of 238 active community water systems with complete monitoring
All 238 systems had complete monitoring. 15 reached at least one study comparison level; 223 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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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 Tennessee
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) | 11 | 238 | 4.6% |
| PFOS: study level 4.05 ppt (April 2024 EPA level: 4 ppt) | 13 | 238 | 5.5% |
| PFHxS: study level 15 ppt (April 2024 EPA level: 10 ppt) | 1 | 238 | 0.4% |
| PFNA: study level 15 ppt (April 2024 EPA level: 10 ppt) | 0 | 238 | 0.0% |
| HFPO-DA: study level 15 ppt (April 2024 EPA level: 10 ppt) | 0 | 238 | 0.0% |
| Hazard Index: study level 1.5 with at least two detected components (April 2024 EPA level: 1) | 1 | 238 | 0.4% |
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 |
|---|---|---|---|---|---|
| ALCOA WATER SYSTEM | TN0000007 | 35,238 | Surface water | 1 | Below the study levels |
| ALGOOD WATER SYSTEM | TN0000009 | 10,042 | Surface water purchased | 1 | Below the study levels |
| ALLARDT WATER WORKS | TN0000010 | 4,058 | Surface water purchased | 1 | Below the study levels |
| ALPHA-TALBOTT UTILITY DISTRICT | TN0000014 | 19,075 | Surface water purchased | 1 | Below the study levels |
| ANDERSON COUNTY WATER AUTHORITY | TN0000514 | 25,700 | Surface water | 5 | Below the study levels |
| ARTHUR-SHAWANEE UTILITY DISTRICT | TN0000022 | 10,037 | Surface water | 1 | Below the study levels |
| ASHLAND CITY WATER DEPARTMENT | TN0000023 | 9,173 | Surface water | 1 | Below the study levels |
| ATHENS UTILITIES BOARD | TN0000024 | 26,424 | Surface water | 2 | Below the study levels |
| ATOKA WATER SYSTEM | TN0000033 | 9,197 | Ground water purchased | 2 | Below the study levels |
| BANGHAM UTILITY DISTRICT | TN0000038 | 7,906 | Surface water purchased | 1 | Below the study levels |
| BARTLETT WATER SYSTEM | TN0000765 | 57,129 | Ground water | 4 | Below the study levels |
| BAXTER WATER DEPARTMENT | TN0000040 | 7,781 | Surface water purchased | 1 | Below the study levels |
| BEDFORD COUNTY UTILITY DISTRICT | TN0000517 | 22,908 | Surface water | 1 | Below the study levels |
| BIG CREEK UTILITY DISTRICT | TN0000122 | 9,185 | Surface water | 1 | Below the study levels |
| BLOOMINGDALE UTILITY DISTRICT | TN0000056 | 13,318 | Surface water | 1 | Below the study levels |
| BLOUNTVILLE UTILITY DISTRICT | TN0000058 | 15,647 | Surface water purchased | 1 | Below the study levels |
| BOLIVAR WATER SYSTEM | TN0000063 | 6,251 | Ground water | 1 | Below the study levels |
| BON AQUA-LYLES UTILITY DISTRICT | TN0000066 | 12,952 | Surface water | 1 | Below the study levels |
| BON DE CROFT UTILITY DISTRICT | TN0000653 | 4,577 | Surface water | 1 | Below the study levels |
| BRENTWOOD WATER DEPTARTMENT | TN0000069 | 30,493 | Surface water purchased | 2 | Below the study levels |
| BRIGHTON WATER SYSTEM | TN0000070 | 3,715 | Ground water purchased | 1 | Below the study levels |
| BRISTOL DEPTARTMENT OF UTILITIES | TN0000073 | 37,648 | Surface water | 1 | Below the study levels |
| BROWNSVILLE WATER DEPT | TN0000080 | 12,845 | Ground water | 2 | Below the study levels |
| CAMDEN WATER DEPT | TN0000090 | 10,013 | Surface water | 1 | Reached a study level |
| CARTHAGE WATER SYSTEM | TN0000095 | 3,624 | Surface water | 1 | Below the study levels |
| CARYVILLE-JACKSBORO UTILITIES COMMISSION | TN0000322 | 11,079 | Surface water | 3 | Below the study levels |
| CASTALIAN SPRINGS-BETHPAGE U D | TN0000097 | 14,184 | Surface water purchased | 2 | Below the study levels |
| CELINA WATER SYSTEM | TN0000099 | 6,160 | Surface water | 1 | Below the study levels |
| CENTERVILLE WATER SYSTEM | TN0000103 | 11,011 | Surface water | 1 | Below the study levels |
| CHUCKEY UTILITY DISTRICT | TN0000108 | 14,369 | Surface water purchased | 3 | Below the study levels |
| CITY OF MARYVILLE WATER AND SEWER DEPT | TN0000438 | 49,135 | Surface water | 1 | Below the study levels |
| CLAIBORNE UTILITIES DISTRICT | TN0000113 | 16,135 | Surface water | 1 | Below the study levels |
| CLEVELAND UTILITIES | TN0000117 | 95,087 | Surface water | 4 | Below the study levels |
| CLIFTON WATER DEPT | TN0000119 | 4,110 | Surface water | 1 | Reached a study level |
| CLINTON UTILITIES BOARD | TN0000120 | 18,772 | Surface water | 1 | Below the study levels |
| COLLIERVILLE WATER DEPT | TN0000126 | 51,972 | Ground water | 4 | Below the study levels |
| COLUMBIA POWER AND WATER SYSTEMS | TN0000128 | 84,617 | Surface water | 1 | Below the study levels |
| CONSOLIDATED U D OF RUTHERFORD | TN0000791 | 221,871 | Surface water | 1 | Below the study levels |
| COOKEVILLE WATER DEPT | TN0000133 | 49,711 | Surface water | 1 | Below the study levels |
| COPPERHILL WATER DEPT. | TN0000136 | 1,217 | Surface water purchased | 1 | Below the study levels |
| CORDELL HULL UTILITY DISTRICT | TN0000096 | 3,220 | Surface water purchased | 1 | Below the study levels |
| COUNTY WIDE UTILITY DISTRICT | TN0000006 | 8,528 | Ground water | 7 | Below the study levels |
| COVINGTON WATER DEPT | TN0000144 | 14,334 | Ground water | 1 | Below the study levels |
| CRAB ORCHARD UTILITY DISTRICT | TN0000147 | 22,673 | Surface water | 1 | Below the study levels |
| CROSS ANCHOR UTILITY DISTRICT | TN0000149 | 8,449 | Surface water purchased | 1 | Below the study levels |
| CROSSVILLE WATER DEPT | TN0000150 | 32,985 | Surface water | 2 | Below the study levels |
| CUMBERLAND HEIGHTS UTILITY DISTRICT | TN0000166 | 3,623 | Surface water purchased | 1 | Below the study levels |
| CUNNINGHAM UTILITY DISTRICT | TN0000167 | 16,068 | Surface water purchased | 2 | Below the study levels |
| DAYTON WATER DEPT | TN0000174 | 25,054 | Surface water | 1 | Below the study levels |
| DECATUR WATER DEPT | TN0000183 | 6,451 | Groundwater under influence of surface water | 1 | Below the study levels |
| DECHERD WATER DEPT. | TN0000187 | 4,809 | Groundwater under influence of surface water | 1 | Below the study levels |
| DEKALB UTILITY DISTRICT #1 | TN0000188 | 17,960 | Surface water | 1 | Below the study levels |
| DEWHITE UTILITY DISTRICT | TN0000190 | 8,467 | Surface water purchased | 1 | Below the study levels |
| DOUBLE SPRINGS UTILITY DISTRIC | TN0000192 | 6,698 | Surface water purchased | 1 | Below the study levels |
| DOVER WATER DEPT, TN | TN0000193 | 4,037 | Surface water | 1 | Below the study levels |
| DRESDEN WATER DEPT | TN0000196 | 3,381 | Ground water | 1 | Below the study levels |
| DUNLAP WATER SYSTEM | TN0000205 | 9,782 | Surface water | 1 | Below the study levels |
| DYERSBURG SUB CONS U D | TN0000212 | 3,538 | Ground water | 1 | Below the study levels |
| DYERSBURG WATER DEPT | TN0000211 | 19,970 | Ground water | 2 | Below the study levels |
| EAST MONTGOMERY UTILITY DISTRICT | TN0000218 | 18,382 | Surface water purchased | 1 | Below the study levels |
| EASTSIDE UTILITY DISTRICT | TN0000219 | 59,612 | Surface water | 1 | Below the study levels |
| ELIZABETHTON WATER DEPT | TN0000221 | 32,490 | Surface water purchased | 4 | Below the study levels |
| ENGLEWOOD WATER DEPT | TN0000224 | 3,917 | Surface water | 1 | Below the study levels |
| ERWIN UTILITIES AUTHORITY | TN0000231 | 12,236 | Groundwater under influence of surface water | 4 | Reached a study level |
| ETOWAH UTILITIES | TN0000233 | 12,851 | Surface water | 1 | Below the study levels |
| FAIRVIEW UTILITY DISTRICT | TN0000563 | 7,036 | Surface water purchased | 3 | Below the study levels |
| FALL CREEK FALLS UTILITY DIST | TN0000552 | 5,434 | Surface water | 1 | Below the study levels |
| FAYETTEVILLE PUBLIC UTILITIES | TN0000242 | 13,908 | Surface water | 1 | Below the study levels |
| FENTRESS COUNTY U.D. | TN0000244 | 16,845 | Surface water purchased | 1 | Below the study levels |
| FIRST U D OF CARTER CO | TN0000094 | 9,143 | Groundwater under influence of surface water | 1 | Below the study levels |
| FIRST U.D. OF HARDIN COUNTY | TN0000546 | 7,388 | Surface water | 1 | Reached a study level |
| FIRST UTIL DIST OF KNOX COUNTY | TN0000369 | 115,531 | Surface water | 1 | Below the study levels |
| FIRST UTILITY DISTRICT OF HAWKINS COUNTY | TN0000109 | 19,972 | Surface water | 1 | Below the study levels |
| FORT CAMPBELL WATER SYSTEM | TN0000820 | 43,270 | Surface water | 1 | Reached a study level |
| FRANKLIN WATER DEPT | TN0000246 | 77,222 | Surface water | 2 | Below the study levels |
| FRIENDSVILLE WATER WORKS | TN0000249 | 5,437 | Surface water purchased | 2 | Below the study levels |
| GALLATIN WATER DEPARTMENT | TN0000253 | 65,964 | Surface water | 1 | Below the study levels |
| GATLINBURG WATER DEPT | TN0000256 | 8,877 | Surface water | 2 | Below the study levels |
| GERMANTOWN WATER DEPT | TN0000262 | 37,738 | Ground water | 2 | Below the study levels |
| GIBSON CO MUN WATER DIST #4 | TN0000813 | 3,386 | Ground water | 1 | Below the study levels |
| GLEN HILLS UTILITY DISTRICT | TN0000266 | 17,355 | Surface water purchased | 1 | Below the study levels |
| GRAYSVILLE WATER DEPT. | TN0000269 | 1,872 | Ground water | 1 | Below the study levels |
| GREENBRIER WATER & SEWER DEPT. | TN0000271 | 9,162 | Surface water purchased | 1 | Below the study levels |
| GREENEVILLE WATER & LIGHT COMM | TN0000273 | 26,657 | Surface water | 1 | Below the study levels |
| H.B.& T.S. UTILITY DISTRICT | TN0000699 | 40,094 | Surface water purchased | 1 | Below the study levels |
| HALLS WATER SYSTEM | TN0000279 | 5,287 | Ground water | 1 | Below the study levels |
| HALLSDALE-POWELL UTILITY DISTRICT | TN0000280 | 84,315 | Surface water | 2 | Below the study levels |
| HAMPTON UTILITY DISTRICT | TN0000282 | 4,354 | Ground water | 1 | Below the study levels |
| HARPETH VALLEY U D | TN0000286 | 65,518 | Surface water | 1 | Below the study levels |
| HARRIMAN UTILITY BOARD | TN0000287 | 16,653 | Surface water | 1 | Below the study levels |
| HARTSVILLE-TROUDALE WAT/SEW U D | TN0000291 | 10,562 | Surface water | 1 | Below the study levels |
| HENDERSON WATER DEPT. | TN0000293 | 8,924 | Ground water | 1 | Below the study levels |
| HENDERSONVILLE U D | TN0000294 | 59,034 | Surface water | 1 | Below the study levels |
| HILLSVILLE UTILITY DISTRICT | TN0000430 | 11,325 | Surface water purchased | 1 | Reached a study level |
| HIXSON UTILITY DISTRICT | TN0000303 | 68,306 | Ground water | 2 | Below the study levels |
| HOHENWALD WATER SYSTEM | TN0000304 | 12,475 | Ground water | 2 | Below the study levels |
| HUMBOLT UTILITIES-WATER DEPT | TN0000314 | 9,908 | Ground water | 1 | Below the study levels |
| HUNTINGDON WATER DEPT | TN0000316 | 6,167 | Ground water | 1 | Below the study levels |
| HUNTSVILLE UTILITY DISTRICT | TN0000318 | 12,516 | Surface water | 1 | Below the study levels |
| JACKSON WATER SYSTEM | TN0000299 | 91,111 | Ground water | 2 | Reached a study level |
| JAMESTOWN WATER DEPT | TN0000324 | 3,078 | Surface water | 1 | Below the study levels |
| JASPER WATER DEPT | TN0000325 | 9,702 | Surface water | 1 | Below the study levels |
| JEFFERSON CITY WATER & SEWER C | TN0000328 | 9,764 | Surface water | 1 | Below the study levels |
| JELLICO WATER DEPT | TN0000330 | 5,056 | Surface water | 1 | Below the study levels |
| JOHNSON CITY WATER DEPT | TN0000331 | 105,057 | Surface water | 2 | Below the study levels |
| KINGSPORT WATER DEPT | TN0000349 | 107,739 | Surface water | 3 | Below the study levels |
| KINGSTON WATER SYSTEM | TN0000360 | 11,392 | Surface water | 2 | Below the study levels |
| KNOX-CHAPMAN UTILITY DISTRICT | TN0000367 | 41,311 | Surface water | 1 | Below the study levels |
| KNOXVILLE UTILITIES BOARD-KUB | TN0000366 | 254,671 | Surface water | 1 | Below the study levels |
| LA FOLLETTE UTILITIES BOARD | TN0000374 | 27,637 | Surface water | 1 | Below the study levels |
| LA VERGNE WATER SYSTEM | TN0000386 | 38,730 | Surface water | 2 | Below the study levels |
| LAFAYETTE WATER SYSTEM | TN0000373 | 21,551 | Surface water | 1 | Below the study levels |
| LAKEVIEW UD WEST | TN0000596 | 2,684 | Groundwater under influence of surface water | 1 | Below the study levels |
| LAUDERDALE CO WATER SYSTEM | TN0000581 | 9,254 | Ground water | 2 | Below the study levels |
| LAWRENCEBURG UTILITY SYSTEMS | TN0000392 | 21,244 | Surface water | 1 | Below the study levels |
| LEBANON WATER SYSTEM | TN0000393 | 60,669 | Surface water | 1 | Below the study levels |
| LENOIR CITY UTILITY BOARD | TN0000396 | 34,786 | Surface water | 3 | Below the study levels |
| LEOMA UTILITY DISTRICT | TN0000399 | 4,808 | Ground water | 1 | Below the study levels |
| LEWISBURG WATER SYSTEM | TN0000400 | 24,569 | Surface water | 1 | Below the study levels |
| LEXINGTON WATER SYSTEMS | TN0000402 | 26,322 | Surface water | 1 | Below the study levels |
| LINCOLN CO BD OF P.U. #1 | TN0000764 | 23,846 | Surface water purchased | 4 | Below the study levels |
| LINDEN WATER DEPT | TN0000404 | 9,568 | Surface water | 1 | Below the study levels |
| LIVINGSTON WATER DEPT | TN0000405 | 15,733 | Surface water | 1 | Below the study levels |
| LOUDON UTILITIES BOARD | TN0000409 | 16,047 | Surface water | 1 | Below the study levels |
| LUTTRELL-BLAINE-CORRYTON U.D. | TN0000415 | 10,529 | Surface water | 3 | Below the study levels |
| MADISON SUBURBAN UD | TN0000424 | 81,203 | Surface water | 1 | Below the study levels |
| MADISONVILLE WATER DEPT | TN0000425 | 15,087 | Surface water purchased | 1 | Below the study levels |
| MALLORY VALLEY UTILITY DISTRICT | TN0000428 | 30,347 | Surface water purchased | 1 | Below the study levels |
| MANCHESTER WATER DEPARTMENT, TN | TN0000429 | 24,975 | Surface water purchased | 1 | Reached a study level |
| MARSHALL CO BD P.U. #1 | TN0000105 | 13,257 | Surface water purchased | 2 | Below the study levels |
| MARTIN WATER DEPT | TN0000435 | 11,918 | Ground water | 1 | Below the study levels |
| MASON WATER DEPT | TN0000440 | 3,642 | Ground water | 1 | Below the study levels |
| MAURY CO WATER SYSTEM | TN0000770 | 24,488 | Surface water purchased | 2 | Below the study levels |
| MCKENZIE WATER DEPT | TN0000421 | 5,495 | Ground water | 1 | Below the study levels |
| MCMINNVILLE WATER DEPT | TN0000423 | 19,029 | Surface water | 1 | Below the study levels |
| MEMPHIS LIGHT, GAS, & WATER | TN0000450 | 659,500 | Ground water | 10 | Below the study levels |
| METRO LYNCHBURG/MOORE COUNTY UT DEPT #1 | TN0000416 | 7,895 | Surface water | 1 | Below the study levels |
| MILAN WATER DEPT | TN0000458 | 10,932 | Ground water | 1 | Below the study levels |
| MILCROFTON UTILITY DISTRICT | TN0000247 | 38,032 | Surface water purchased | 2 | Below the study levels |
| MILLINGTON WATER DEPT | TN0000463 | 8,935 | Ground water | 2 | Below the study levels |
| MINOR HILL WATER UTIL DIST | TN0000469 | 8,237 | Surface water purchased | 2 | Below the study levels |
| MONTEAGLE PUBLIC UTILITY BOARD | TN0000470 | 4,179 | Surface water | 2 | Below the study levels |
| MONTEREY WATER DEPT | TN0000471 | 5,072 | Surface water | 1 | Below the study levels |
| MORRISTOWN WATER SYSTEM | TN0000474 | 39,883 | Surface water | 1 | Below the study levels |
| MOUNT PLEASANT WAT SYS #1 | TN0000488 | 8,914 | Groundwater under influence of surface water | 1 | Below the study levels |
| MOUNTAIN CITY WATER DEPT. | TN0000479 | 9,304 | Surface water | 3 | Below the study levels |
| MUNFORD WATER DEPT | TN0000490 | 10,434 | Ground water | 1 | Below the study levels |
| MURFREESBORO WATER DEPARTMENT | TN0000491 | 114,331 | Surface water | 1 | Below the study levels |
| NASHVILLE WATER DEPT | TN0000494 | 778,153 | Surface water | 2 | Below the study levels |
| NEW MARKET UTILITY DISTRICT | TN0000499 | 5,703 | Surface water purchased | 1 | Below the study levels |
| NEWBERN WATER DEPT | TN0000496 | 8,098 | Ground water | 1 | Below the study levels |
| NEWPORT UTILITIES BOARD | TN0000500 | 34,925 | Surface water | 1 | Below the study levels |
| NIOTA WATER SYSTEM | TN0000510 | 3,932 | Purchased ground water under influence of surface water source | 1 | Below the study levels |
| NORTH STEWART UTILITY DISTRICT | TN0000195 | 5,983 | Surface water | 1 | Below the study levels |
| NORTH U.D. OF DECATUR/BENTON CO. | TN0000883 | 3,818 | Surface water | 1 | Reached a study level |
| NORTH WEST UTILITY DISTRICT | TN0000169 | 20,710 | Surface water | 1 | Below the study levels |
| NORTHEAST HENRY CO UTIL DIS | TN0000540 | 5,155 | Ground water | 1 | Below the study levels |
| NORTHEAST KNOX U D | TN0000515 | 27,941 | Surface water | 1 | Below the study levels |
| NORTHEAST LAWRENCE UTILITY DIS | TN0000389 | 4,017 | Ground water | 2 | Below the study levels |
| NORTHWEST DYERSBURG U D | TN0000518 | 3,996 | Ground water | 1 | Below the study levels |
| NSA - MIDSOUTH | TN0000468 | 7,000 | Ground water | 1 | Below the study levels |
| OAK RIDGE DEPT OF PUBLIC WORKS | TN0000522 | 41,614 | Surface water | 1 | Below the study levels |
| OAKLAND WATER DEPT, TN | TN0000521 | 14,957 | Ground water | 1 | Below the study levels |
| OLD GAINESBORO ROAD UTIL DIST | TN0000135 | 6,608 | Surface water purchased | 1 | Below the study levels |
| OLD KNOXVILLE HWY U D | TN0000530 | 8,296 | Surface water purchased | 1 | Below the study levels |
| OLIVER SPRINGS WATER BOARD | TN0000523 | 5,361 | Surface water purchased | 1 | Below the study levels |
| ONEIDA W&S COMM | TN0000532 | 11,600 | Surface water | 1 | Below the study levels |
| PARIS BD OF PUBLIC UTILITIES | TN0000536 | 13,145 | Ground water | 1 | Below the study levels |
| PARSONS WATER DEPARTMENT | TN0000541 | 4,303 | Surface water | 1 | Reached a study level |
| PIGEON FORGE WATER DEPARTMENT | TN0000548 | 14,872 | Surface water | 1 | Below the study levels |
| PIKEVILLE WATER SYSTEM | TN0000551 | 5,486 | Groundwater under influence of surface water | 1 | Below the study levels |
| PLATEAU UTILITY DISTRICT | TN0000729 | 12,074 | Surface water | 3 | Below the study levels |
| PLEASANT VIEW UTILITY DISTRICT | TN0000558 | 19,663 | Surface water | 1 | Below the study levels |
| POPLAR GROVE UTILITY DISTRICT | TN0000201 | 19,599 | Ground water | 1 | Below the study levels |
| PORTLAND WATER SYSTEM | TN0000559 | 25,761 | Surface water | 1 | Below the study levels |
| PULASKI WATER SYSTEM | TN0000562 | 10,767 | Surface water | 1 | Below the study levels |
| RED BOILING SPRINGS WATER SYST | TN0000572 | 6,050 | Surface water purchased | 2 | Below the study levels |
| RICEVILLE UTILITY DISTRICT | TN0000576 | 3,843 | Surface water purchased | 2 | Below the study levels |
| RIDGELY WATER SYSTEM | TN0000579 | 2,059 | Ground water | 1 | Below the study levels |
| RIPLEY WATER SYSTEM | TN0000580 | 8,030 | Ground water | 1 | Below the study levels |
| RIVER ROAD UTILITY DISTRICT | TN0000582 | 3,859 | Surface water purchased | 1 | Below the study levels |
| ROGERSVILLE WATER SYSTEM | TN0000593 | 13,729 | Surface water | 1 | Below the study levels |
| RUSSELLVILLE WHITESBURG U D | TN0000598 | 20,197 | Surface water purchased | 1 | Below the study levels |
| SAVANNAH UTILITY DEPT | TN0000611 | 19,495 | Ground water | 1 | Reached a study level |
| SAVANNAH VALLEY U. D. | TN0000613 | 30,571 | Groundwater under influence of surface water | 3 | Reached a study level |
| SECOND SOUTH CHEATHAM U.D. | TN0000645 | 9,243 | Surface water | 1 | Below the study levels |
| SELMER WATER SYSTEM | TN0000615 | 20,648 | Ground water | 3 | Below the study levels |
| SEVIERVILLE WATER SYSTEM | TN0000617 | 39,885 | Surface water | 1 | Below the study levels |
| SEWANEE UTILITY DISTRICT | TN0000623 | 5,970 | Surface water | 1 | Below the study levels |
| SHADY GROVE UTILITY DISTRICT | TN0000626 | 25,320 | Surface water purchased | 2 | Below the study levels |
| SHARON WATER SYSTEM | TN0000627 | 1,236 | Ground water | 1 | Below the study levels |
| SHELBYVILLE WATER SYSTEM | TN0000628 | 36,813 | Surface water | 1 | Reached a study level |
| SIGNAL MOUNTAIN WATER SYSTEM | TN0000634 | 7,761 | Surface water purchased | 1 | Below the study levels |
| SMITH UTILITY DISTRICT | TN0000636 | 8,913 | Surface water | 1 | Below the study levels |
| SMITHVILLE WATER SYSTEM | TN0000637 | 7,049 | Surface water | 1 | Below the study levels |
| SMYRNA WATER SYSTEM | TN0000639 | 60,876 | Surface water | 1 | Below the study levels |
| SOMERVILLE WATER SYSTEM | TN0000641 | 5,020 | Ground water | 1 | Below the study levels |
| SOUTH BLOUNT UTILITY DISTRICT | TN0000643 | 53,864 | Surface water | 1 | Below the study levels |
| SOUTH CUMBERLAND U.D. | TN0000159 | 12,850 | Surface water purchased | 1 | Below the study levels |
| SOUTH ELIZABETHTON UTILITY DIS | TN0000646 | 6,244 | Surface water purchased | 1 | Below the study levels |
| SOUTH FULTON WATER SYSTEM | TN0000648 | 4,043 | Ground water | 1 | Below the study levels |
| SOUTH PITTSBURG WATER SYSTEM | TN0000651 | 7,304 | Surface water | 1 | Below the study levels |
| SOUTH SIDE U.D. #1 | TN0000904 | 4,431 | Surface water purchased | 1 | Below the study levels |
| SPARTA WATER SYSTEM | TN0000652 | 10,899 | Surface water | 1 | Below the study levels |
| SPRING HILL WATER DEPT | TN0000667 | 65,840 | Surface water | 1 | Below the study levels |
| SPRINGFIELD WATER SYSTEM | TN0000666 | 46,546 | Surface water | 2 | Below the study levels |
| SWEETWATER UTILITY BOARD | TN0000687 | 13,597 | Surface water | 2 | Below the study levels |
| TELLICO AREA SERVICES SYSTEM | TN0000726 | 14,836 | Surface water | 1 | Below the study levels |
| TELLICO PLAINS WATER DEPT | TN0000693 | 7,759 | Ground water | 2 | Below the study levels |
| TELLICO VILLAGE POA | TN0000871 | 13,870 | Surface water purchased | 2 | Below the study levels |
| TENNESSEE AMERICAN WATER | TN0000107 | 207,046 | Surface water | 1 | Below the study levels |
| TENNESSEE RIDGE WATER SYSTEM | TN0000698 | 4,169 | Ground water | 2 | Below the study levels |
| TN AMERICAN-SEQUATCHIE VALLEY | TN0000749 | 8,001 | Surface water | 1 | Below the study levels |
| TRENTON WATER SYSTEM | TN0000707 | 5,155 | Ground water | 1 | Reached a study level |
| TULLAHOMA UTILITIES AUTHORITY | TN0000715 | 30,958 | Surface water purchased | 1 | Reached a study level |
| UNICOI UTILITY DISTRICT | TN0000719 | 4,527 | Purchased ground water under influence of surface water source | 1 | Below the study levels |
| UNION CITY WATER DEPT | TN0000720 | 16,180 | Ground water | 1 | Below the study levels |
| UNION FORK-BAKEWELL UTILITY DISTRICT | TN0000037 | 6,464 | Ground water | 1 | Below the study levels |
| WALDEN'S RIDGE UTILITY DISTRICT | TN0000635 | 9,265 | Surface water purchased | 1 | Below the study levels |
| WARREN COUNTY UTILITY DISTRICT | TN0000818 | 29,055 | Surface water | 1 | Below the study levels |
| WATTS BAR EAST U.D. | TN0000969 | 4,280 | Surface water purchased | 2 | Below the study levels |
| WATTS BAR UTILITY DISTRICT | TN0000872 | 15,571 | Surface water purchased | 1 | Below the study levels |
| WAVERLY WATER DEPARTMENT | TN0000733 | 9,270 | Surface water | 2 | Below the study levels |
| WAYNESBORO WATER SYSTEM | TN0000736 | 5,354 | Surface water | 2 | Below the study levels |
| WEST CUMBERLAND U.D. | TN0000557 | 5,659 | Surface water purchased | 1 | Below the study levels |
| WEST KNOX UTILITY DISTRICT | TN0000371 | 77,825 | Surface water | 2 | Below the study levels |
| WEST OVERTON UTILITY DISTRICT | TN0000578 | 9,392 | Surface water purchased | 2 | Below the study levels |
| WEST ROBERTSON WATER AUTHORITY | TN0000001 | 5,915 | Surface water | 1 | Below the study levels |
| WEST WARREN-VIOLA U. D. | TN0000742 | 19,009 | Surface water | 1 | Below the study levels |
| WEST WILSON UTILITY DISTRICT | TN0000743 | 86,978 | Surface water | 1 | Below the study levels |
| WESTMORELAND WATER SYSTEM | TN0000738 | 6,330 | Surface water purchased | 1 | Below the study levels |
| WHITE HOUSE UTILITY DISTRICT | TN0000745 | 130,411 | Surface water | 1 | Below the study levels |
| WHITE PINE WATER SYSTEM | TN0000746 | 4,171 | Surface water purchased | 2 | Below the study levels |
| WILSON CO WATER & WASTEWATER | TN0000790 | 22,680 | Surface water purchased | 4 | Below the study levels |
| WINCHESTER WATER SYSTEM | TN0000754 | 24,899 | Surface water | 1 | Below the study levels |
| WITT UTILITY DISTRICT | TN0000650 | 5,771 | Surface water | 1 | Below the study levels |
| WOODBURY WATER SYSTEM | TN0000756 | 11,434 | Surface water | 1 | Below the study levels |
| WOODLAWN UTILITY DISTRICT | TN0000758 | 12,069 | 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 Tennessee's state-specific standards or determine compliance. Use the official state or territory drinking-water program for current regulatory information.