Louisiana Water Quality
Health violation data for 835 community water systems in Louisiana. Based on EPA Safe Drinking Water Information System (SDWIS) data.
Water Systems
835
Total Violations
13,618
Systems with Violations
50
Cities with Issues
271
Water Systems with Most Violations
| # | Water System | Violations | Health |
|---|---|---|---|
| 1 | VIXEN WATER SYSTEM Alexandria | 262 | Yes |
| 2 | OIL CITY WATER WORKS Oil City | 246 | Yes |
| 3 | BELLWOOD WATER SYSTEM Provencal | 234 | Yes |
| 4 | TOWN OF FERRIDAY WATER SYSTEM Ferriday | 208 | Yes |
| 5 | LAKE ST JOHN WATERWORKS DISTRICT 1 Ferriday | 205 | Yes |
| 6 | PENDLETON WATER ASSOCIATION Many | 205 | Yes |
| 7 | FAIRVIEW UNION WATER SYSTEM Coushatta | 203 | Yes |
| 8 | RED HILL WATERWORKS INC. Harrisonburg | 192 | Yes |
| 9 | SANDY POINT 480 WATER SYSTEM Campti | 191 | Yes |
| 10 | JONES MCGINTY WATER SYSTEM Bonita | 190 | Yes |
| 11 | EBARB WWKS DIST #1 - NORTH EBARB Zwolle | 190 | Yes |
| 12 | WEST WINN WATER SYSTEM INC Winnfield | 187 | Yes |
| 13 | NEWELLTON WATER SYSTEM Newellton | 164 | Yes |
| 14 | TOWN OF PLAIN DEALING WATER SYSTEM Plain Dealing | 162 | Yes |
| 15 | WARDS CHAPEL WATER SYSTEM Farmerville | 160 | Yes |
| 16 | ALBERTA WATER SYSTEM Castor | 157 | Yes |
| 17 | FRANKLIN WATER SUPPLY Franklin | 153 | Yes |
| 18 | VILLAGE OF RIDGECREST WATER SUPPLY Ridgecrest | 148 | Yes |
| 19 | SARDIS WATER SYSTEM Gilbert | 145 | Yes |
| 20 | TOWN OF TULLOS WATER SYSTEM Tullos | 138 | Yes |
| 21 | PLEASANT HILLS-CROSSROADS WATER SYSTEMS Joyce | 137 | Yes |
| 22 | UNION SPRINGS WATER SYSTEM Converse | 135 | Yes |
| 23 | LITROE WATER SYSTEM Marion | 134 | Yes |
| 24 | EBARB WWKS DIST # 1 - N EBARB/BELMONT Zwolle | 133 | Yes |
| 25 | SOUTH DESOTO WATER SYSTEM Mansfield | 128 | Yes |
| 26 | TOWN OF CLAYTON WATER SYSTEM Clayton | 124 | Yes |
| 27 | TRI-WATER SYSTEM Farmerville | 122 | Yes |
| 28 | CADEVILLE WATER DISTRICT West Monroe | 120 | Yes |
| 29 | PRAIRIE ROAD WATER DISTRICT Monroe | 118 | Yes |
| 30 | CAMERON PARISH WW DISTRICT 7 Creole | 117 | Yes |
| 31 | DOWNSVILLE WATER SYSTEM Downsville | 115 | Yes |
| 32 | VILLAGE OF CALVIN WATER SYSTEM Calvin | 115 | Yes |
| 33 | SALEM WATER SYSTEM Farmerville | 114 | Yes |
| 34 | PORT SULPHUR WATER DISTRICT Belle Chasse | 112 | Yes |
| 35 | MOORINGSPORT WATER SYSTEM Mooringsport | 111 | Yes |
| 36 | EBARB WWKS DIST # 1 - AIMWELL AREA Zwolle | 111 | Yes |
| 37 | BELMONT WATERWORKS INC Belmont | 110 | Yes |
| 38 | SPRINGHILL COMMUNITY WATER SYSTEM Ringgold | 109 | Yes |
| 39 | HICO WATER SYSTEM Dubach | 109 | Yes |
| 40 | VILLAGE OF SIKES WATER SYSTEM Sikes | 109 | Yes |
| 41 | UNION PARISH WATERWORKS DISTRICT 1 Farmerville | 108 | Yes |
| 42 | MARION WATER SYSTEM Marion | 105 | Yes |
| 43 | TANNEHILL WATER SYSTEM Winnfield | 105 | Yes |
| 44 | LINVILLE-HAILE WATER SYSTEM Marion | 94 | Yes |
| 45 | TOWN OF ZWOLLE WATER SYSTEM Zwolle | 87 | Yes |
| 46 | HUDSON GAARS MILL WATER SYSTEM Dodson | 86 | Yes |
| 47 | HOLUM WATER SYSTEM Grayson | 83 | Yes |
| 48 | WEST STERLINGTON WATER SYSTEM Sterlington | 83 | Yes |
| 49 | SHREVEPORT WATER SYSTEM Shreveport | 82 | Yes |
| 50 | BERNICE WATER SYSTEM Bernice | 82 | Yes |
Most Common Contaminants in Louisiana
| Contaminant | Violations | Systems Affected |
|---|---|---|
| Total Trihalomethanes (TTHM) | 7,109 | 174 |
| Fluoride | 2,661 | 397 |
| Haloacetic Acids (HAA5) | 2,219 | 86 |
| Turbidity | 340 | 18 |
| E. coli | 210 | 58 |
| Barium | 205 | 9 |
| Gross Alpha | 190 | 174 |
| Total Coliform (RTCR) | 187 | 50 |
| Combined Radium 226/228 | 142 | 43 |
| Arsenic | 133 | 9 |
| Chloroform | 117 | 12 |
| Atrazine | 29 | 11 |
| Contaminant 1008 | 24 | 4 |
| Uranium | 18 | 2 |
| Total Coliform | 12 | 4 |
Cities with Water Quality Issues
Belle Chasse Chalmette Gramercy Westwego New Orleans Morgan City Amelia Donaldsonville Houma Patterson Hammond Bogalusa Franklinton Kentwood Madisonville Amite Roseland Slidell Lafayette Abbeville Breaux Bridge Broussard Centerville Franklin Jeanerette Jennings Maurice New Iberia Rayne Scott Ville Platte Lake Charles Sulphur Westlake Deridder Cameron Carville Convent Denham Springs New Roads +231 more
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About This Data
Water quality data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Only community water systems (CWS) in Louisiana are included.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.