State rankings
Tennessee water-system rankings
Lowest-scoring systems in Tennessee
Ranked lowest score first. Population shown for context.
1 SAVANNAH VALLEY U.D. GEORGETOWN, TN · ~30,571 served 34 2 CLIFTON WATER DEPT CLIFTON, TN · ~4,110 served 34 3 NORTH U.DEP. OF DECATUR/BENTON CO HOLLADAY, TN · ~3,818 served 34 4 HILLSVILLE UTILITY DISTRICT MANCHESTER, TN · ~11,325 served 38 5 PARSONS WATER DEPARTMENT PARSONS, TN · ~4,303 served 41 6 MANCHESTER WATER DEPARTMENT MANCHESTER, TN · ~24,975 served 43 7 FIRST U.D. OF HARDIN COUNTY COUNCE, TN · ~7,388 served 43 8 JACKSON WATER SYSTEM JACKSON, TN · ~91,111 served 50 9 MARSHALL CO B.P.U. #1 LEWISBURG, TN · ~13,257 served 53 10 BEDFORD COUNTY U.D. SHELBYVILLE, TN · ~22,908 served 54 11 ARDMORE WATER SYSTEM ARDMORE, TN · ~3,903 served 54 12 WARTRACE WATER SYSTEM WARTRACE, TN · ~3,983 served 57 13 TULLAHOMA UTILITIES AUTHORITY TULLAHOMA, TN · ~30,958 served 62 14 CAMDEN WATER DEPT CAMDEN, TN · ~10,013 served 62 15 MAURY CO WATER SYSTEM COLUMBIA, TN · ~24,488 served 64 16 TRENTON WATER SYSTEM TRENTON, TN · ~5,155 served 65 17 NOLENSVILLE-COLLEGE GROVE U.D. NOLENSVILLE, TN · ~32,793 served 67 18 SAVANNAH UTILITY DEPT SAVANNAH, TN · ~19,495 served 67 19 ERWIN UTILITIES AUTHORITY ERWIN, TN · ~12,236 served 67 20 SCOTTS HILL WATER SYSTEM SCOTTS HILL, TN · ~4,579 served 68 21 LEWISBURG WATER SYSTEM LEWISBURG, TN · ~24,569 served 70 22 OCOEE UTILITY DISTRICT OCOEE, TN · ~21,082 served 71 23 SHELBYVILLE WATER SYSTEM SHELBYVILLE, TN · ~34,772 served 72 24 WILSON CO WATER & WASTEWATER LEBANON, TN · ~22,680 served 76 25 HARVEST-MONROVIA WATER SYSTEM PROSPECT, TN · ~51,915 served 77
Highest-scoring large systems in Tennessee
Systems serving 10,000+ people with the best scores.
1 METRO WATER SERVICES NASHVILLE, TN · ~778,153 served 100 2 MEMPHIS LIGHT, GAS, & WATER MEMPHIS, TN · ~659,500 served 100 3 KNOXVILLE UTILITIES BOARD - KUB KNOXVILLE, TN · ~254,671 served 100 4 CLARKSVILLE WATER DEPARTMENT CLARKSVILLE, TN · ~251,864 served 100 5 CONSOLIDATED U.D. OF RUTHERFORD CO MURFREESBORO, TN · ~221,871 served 100 6 TENNESSEE AMERICAN WATER CHATTANOOGA, TN · ~207,046 served 100 7 WHITE HOUSE UTILITY DISTRICT WHITE HOUSE, TN · ~130,411 served 100 8 FIRST U.D. OF KNOX COUNTY KNOXVILLE, TN · ~115,531 served 100
Scores reflect EPA public records (violations, enforcement, PFAS), are system-level, and can’t account for your home’s plumbing. See the methodology.