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Louisiana Tap Water Quality

EPA water quality data for 150 community water systems serving 862,163+ people in Louisiana. Click any system to see violations, lead testing results, and a safety grade.

SHREVEPORT WATER SYSTEM SHREVEPORT, LA · 192,378 people · Surface Water CITY OF LAKE CHARLES WATER SYSTEM LAKE CHARLES, LA · 79,500 people · Groundwater CITY OF BOSSIER CITY WATER SYSTEM BOSSIER CITY, LA · 78,960 people · Surface Water SULPHUR CITY OF WATER SYSTEM SULPHUR, LA · 24,489 people · Groundwater BEAUREGARD WATER WORKS DIST #3 LONGVILLE, LA · 24,000 people · Groundwater ASSUMPTION PARISH WW DISTRICT 1 NAPOLEONVILLE, LA · 21,366 people · Surface Water CALCASIEU PARISH WW DISTRICT NO 1 LAKE CHARLES, LA · 20,837 people · Groundwater CROWLEY WATER SYSTEM (LAWCO) BATON ROUGE, LA · 17,733 people · Groundwater CITY OF GONZALES WATER SYSTEM GONZALES, LA · 16,806 people · Groundwater BLANCHARD WATER SYSTEM BLANCHARD, LA · 16,326 people · Surface Water CALCASIEU PARISH WW DIST 9 CARLYSS SULPHUR, LA · 14,502 people · Groundwater CITY OF DERIDDER WATER SYSTEM DERIDDER, LA · 14,400 people · Groundwater BARKSDALE AFB WATER SYSTEM BARKSDALE AFB, LA · 13,000 people · Surface Water Purchased VILLAGE WATER SYSTEM BENTON, LA · 10,890 people · Groundwater PARISH UTILITIES OF ASCENSION DONALDSONVILLE, LA · 9,732 people · Surface Water MIRE BRANCH WATER CORPORATION CHURCH POINT, LA · 9,480 people · Groundwater SOUTHWEST ALLEN WW DISTRICT NO 2 KINDER, LA · 8,106 people · Groundwater TOWN OF BENTON WATER SYSTEM BENTON, LA · 8,037 people · Surface Water Purchased CITY OF RAYNE WATER SYSTEM RAYNE, LA · 7,722 people · Groundwater CITY OF MARKSVILLE WATER SYSTEM MARKSVILLE, LA · 7,593 people · Groundwater Purchased HOUSTON RIVER WATERWORKS DISTRICT 11 SULPHUR, LA · 6,915 people · Groundwater CALCASIEU PARISH WW DISTRICT 8 LAKE CHARLES, LA · 6,834 people · Groundwater BEAUREGARD DISTRICT NO 2 WARD NO 5 SINGER, LA · 6,613 people · Groundwater CITY OF OAKDALE WATER SYSTEM OAKDALE, LA · 6,114 people · Groundwater WATERWORKS DISTRICT 7 KEITHVILLE, LA · 5,817 people · Groundwater FIFTH WARD WATER SYSTEM MARKSVILLE, LA · 5,676 people · Groundwater CYPRESS BLACK BAYOU WATER SYSTEM BENTON, LA · 5,520 people · Surface Water Purchased CALCASIEU PARISH WW DISTRICT NO 5 LAKE CHARLES, LA · 5,388 people · Groundwater DEQUINCY WATER SYSTEM (LAWCO) BATON ROUGE, LA · 5,370 people · Groundwater EGAN WATER CORPORATION EGAN, LA · 5,358 people · Groundwater TOWN OF HAUGHTON WATER SYSTEM HAUGHTON, LA · 5,355 people · Groundwater CALCASIEU PARISH WW DISTRICT NO 4 WESTLAKE, LA · 5,340 people · Groundwater TOWN OF GREENWOOD WATER SYSTEM GREENWOOD, LA · 5,205 people · Surface Water TOWN OF BUNKIE WATER SYSTEM BUNKIE, LA · 5,169 people · Groundwater PINEHILL WATERWORKS DISTRICT SHREVEPORT, LA · 4,926 people · Surface Water Purchased WESTLAKE CITY OF WATER SYSTEM WESTLAKE, LA · 4,858 people · Groundwater CALCASIEU PARISH WW DISTRICT 7 DEQUINCY, LA · 4,791 people · Groundwater SOUTH RAYNE WATER CORPORATION RAYNE, LA · 4,254 people · Groundwater TOWN OF PLAUCHEVILLE WATER SYSTEM PLAUCHEVILLE, LA · 4,233 people · Groundwater TOWN OF CHURCH POINT WATER SYSTEM CHURCH POINT, LA · 4,176 people · Groundwater TOWN OF VINTON WATER SYSTEM VINTON, LA · 4,101 people · Groundwater VIVIAN WATER SYSTEM VIVIAN, LA · 4,050 people · Surface Water NORTH OF CROWLEY WATER CORPORATION RAYNE, LA · 4,020 people · Groundwater AVOYELLES PARISH WATERWORKS DISTRICT 1 BORDELONVILLE, LA · 3,900 people · Groundwater BROUILLETTE WATER SYSTEM INC MARKSVILLE, LA · 3,732 people · Groundwater AVOYELLES WARD ONE WATER SYSTEM INC EFFIE, LA · 3,726 people · Groundwater TOWN OF IOWA WATER SYSTEM IOWA, LA · 3,636 people · Groundwater WEST ALLEN PARISH WATER SYSTEM REEVES, LA · 3,582 people · Groundwater ARCADIA WATER SYSTEM ARCADIA, LA · 3,508 people · Groundwater VILLAGE OF HESSMER WATER SYSTEM HESSMER, LA · 3,246 people · Groundwater TOWN OF KINDER WATER SYSTEM KINDER, LA · 3,228 people · Groundwater Purchased CONSOLIDATED WWKS DISTRICT 1 OF BOSSIER BENTON, LA · 3,210 people · Groundwater CALCASIEU WW #14 WARD 5 STARKS, LA · 3,150 people · Groundwater TOWN OF COTTONPORT WATER SYSTEM COTTONPORT, LA · 3,120 people · Groundwater HEBERT WATER SYSTEM COLUMBIA, LA · 3,048 people · Groundwater EAST ALLEN PARISH WATER WORKS OBERLIN, LA · 3,030 people · Groundwater SLIGO WATER SYSTEM INCORPORATED COUSHATTA, LA · 2,850 people · Groundwater EGAN WATER CORPORATION NO 2 EGAN, LA · 2,835 people · Groundwater EAST COLUMBIA WATER SYSTEM COLUMBIA, LA · 2,829 people · Groundwater TOWN OF OBERLIN WATER SYSTEM OBERLIN, LA · 2,730 people · Groundwater AVOYELLES WARD 3 WATERWORKS DISTRICT MANSURA, LA · 2,619 people · Groundwater Purchased TOWN OF PLAIN DEALING WATER SYSTEM PLAIN DEALING, LA · 2,346 people · Groundwater DOGWOOD SOUTH WATER SYSTEM BENTON, LA · 2,304 people · Groundwater RINGGOLD WATER SYSTEM RINGGOLD, LA · 2,283 people · Groundwater ASCENSION CONSOLIDATED UTILITY DIST 1 DONALDSONVILLE, LA · 2,229 people · Surface Water Purchased TOWN OF EVERGREEN WATER SYSTEM EVERGREEN, LA · 2,205 people · Groundwater OIL CITY WATER WORKS OIL CITY, LA · 2,148 people · Surface Water Purchased TOWN OF SIMMESPORT WATER SYSTEM SIMMESPORT, LA · 2,142 people · Groundwater GULF STREAM MANOR WATER SYSTEM LAKE CHARLES, LA · 2,130 people · Groundwater CALCASIEU PARISH WW 12 WARD 3 LAKE CHARLES, LA · 2,130 people · Groundwater LAKEVIEW WATER SYSTEM SHREVEPORT, LA · 2,025 people · Surface Water Purchased EAGLE WATER SYSTEM KEITHVILLE, LA · 1,965 people · Groundwater COLUMBIA HEIGHTS WATER DISTRICT COLUMBIA, LA · 1,965 people · Groundwater LAWCO MANSURA BATON ROUGE, LA · 1,878 people · Groundwater Purchased ALBERTA WATER SYSTEM CASTOR, LA · 1,860 people · Groundwater TOWN OF IOTA WATER SYSTEM IOTA, LA · 1,842 people · Groundwater WEST CENTRAL BOSSIER WATER SYSTEM BENTON, LA · 1,771 people · Groundwater NORTHWEST ALLEN PARISH WW DISTRICT GRANT, LA · 1,761 people · Groundwater SOUTH BOSSIER WATER SYSTEM ELM GROVE, LA · 1,755 people · Groundwater VILLAGE OF MOREAUVILLE WATER SYSTEM MOUREAUVILLE, LA · 1,725 people · Groundwater Purchased MAGNOLIA-GREEN ACRES SUBDIVISION DES PERES, MO · 1,575 people · Groundwater GRAYSON WATER SYSTEM GRAYSON, LA · 1,461 people · Groundwater SOUTH OAKDALE WATER SYSTEM OAKDALE, LA · 1,434 people · Groundwater ASCENSION PARISH WATER WORKS DISTRICT 2 BATON ROUGE, LA · 1,353 people · Groundwater Purchased BELLEVUE WATER SYSTEM DOYLINE, LA · 1,347 people · Groundwater KELLY WATER DISTRICT KELLY, LA · 1,314 people · Groundwater ALLEN PARISH WW DISTRICT NO 1 OAKDALE, LA · 1,266 people · Groundwater HOLUM WATER SYSTEM GRAYSON, LA · 1,230 people · Groundwater CYPRESS WATER SYSTEM RINGGOLD, LA · 1,125 people · Groundwater QUAIL RIDGE ESTATES WATER SYSTEM LAKE CHARLES, LA · 1,119 people · Groundwater TOWN OF MERRYVILLE WATER SYSTEM MERRYVILLE, LA · 1,107 people · Groundwater SOUTHWEST AVOYELLES WATER DISTRICT BUNKIE, LA · 1,053 people · Groundwater WARDS 4 & 5 WATER SYSTEM GRAYSON, LA · 1,002 people · Groundwater MOORINGSPORT WATER SYSTEM MOORINGSPORT, LA · 999 people · Surface Water Purchased BEAUREGARD WATERWORKS DISTRICT NO. 6 MERRYVILLE, LA · 993 people · Groundwater GIBSLAND WATER SYSTEM GIBSLAND, LA · 979 people · Groundwater TOWN OF ELIZABETH WATER SYSTEM ELIZABETH, LA · 966 people · Groundwater ALABAMA WATER SYSTEM ARCADIA, LA · 948 people · Groundwater COLUMBIA WATER SYSTEM COLUMBIA, LA · 945 people · Groundwater WATERWORKS DIST. NO. 10 OF WARD 7 VINTON, LA · 942 people · Groundwater Purchased COUNTRY PINES NORTH SUBDIVISION WS MANDEVILLE, LA · 936 people · Groundwater CLARKS WATER SYSTEM CLARKS, LA · 906 people · Groundwater VILLAGE OF ESTHERWOOD WATER SYSTEM ESTHERWOOD, LA · 891 people · Groundwater EAST CENTRAL BOSSIER WATER SYSTEM BENTON, LA · 885 people · Groundwater VILLAGE OF MORSE WATER SYSTEM MORSE, LA · 806 people · Groundwater SPRING BAYOU WATER WORKS DISTRICT MARKSVILLE, LA · 795 people · Groundwater Purchased COTTON PLANT WATER SYSTEM GRAYSON, LA · 783 people · Groundwater VILLAGE OF MERMENTAU WATER SYSTEM MERMENTAU, LA · 780 people · Groundwater FRIENDSHIP WATER SYSTEM SALINE, LA · 777 people · Groundwater VILLAGE OF HOSSTON WATER SYSTEM HOSSTON, LA · 729 people · Groundwater BEAUREGARD WATER DISTRICT #5 MERRYVILLE, LA · 672 people · Groundwater FAIRVIEW MOBILE ESTATES NORTH WS PRAIRIEVILLE, LA · 669 people · Groundwater MOSSVILLE WW DISTRICT NO 2 LAKE CHARLES, LA · 660 people · Groundwater Purchased DEEPWOODS UTILITIES INC KEITHVILLE, LA · 657 people · Groundwater MAGNOLIA-LAKE STREET DES PERES, MO · 651 people · Groundwater MT OLIVE WATER SYSTEM QUITMAN, LA · 645 people · Groundwater GLEN LEAF MOBILE HOME COMMUNITY SHREVEPORT, LA · 645 people · Surface Water Purchased PINECREST MOBILE HOME VILLAGE SHREVEPORT, LA · 639 people · Surface Water Purchased FOUR FORKS WATER SYSTEM KEITHVILLE, LA · 609 people · Groundwater MAGNOLIA-DIXIE GARDEN DES PERES, MO · 570 people · Surface Water Purchased COUNTRY PINES SOUTH SUBDIVISION WS MANDEVILLE, LA · 570 people · Groundwater THE CHARLESTON MHC WATER SYSTEM HAMMOND, LA · 567 people · Groundwater MAGNOLIA-WILDWOOD SOUTH DES PERES, MO · 549 people · Surface Water Purchased NORTHWEST WATERWORKS LIN PARK BATON ROUGE, LA · 513 people · Surface Water Purchased JAMESTOWN FRYEBURG WATER SYSTEM DUBBERLY, LA · 495 people · Groundwater IDA WATER SYSTEM IDA, LA · 495 people · Groundwater GARDEN HEIGHTS WATER SYSTEM LAKE CHARLES, LA · 465 people · Groundwater DIVERSION WATER - BAYOU ESTATES PRAIRIEVILLE, LA · 450 people · Groundwater SMITH MOBILE HOME VILLAGE WATER SYSTEM BROOKLYN, NY · 444 people · Groundwater CASTOR WATER SYSTEM CASTOR, LA · 435 people · Groundwater SALINE WATER SYSTEM SALINE, LA · 429 people · Groundwater NORTHWEST WATERWORKS LAKEWOOD VILLAGE BATON ROUGE, LA · 423 people · Surface Water Purchased RODESSA WATER SYSTEM RODESSA, LA · 414 people · Groundwater THE SALLIER MHC WATER SYSTEM HAMMOND, LA · 400 people · Groundwater CYPRESS VILLAGE MHP WATER SYSTEM BATON ROUGE, LA · 396 people · Groundwater Purchased OLD SALINE COMMUNITY WATER SYSTEM CASTOR, LA · 390 people · Groundwater FAIRVIEW MOBILE ESTATES SOUTH WS PRAIRIEVILLE, LA · 378 people · Groundwater BIENVILLE WATER SYSTEM BIENVILLE, LA · 360 people · Groundwater SOUTHEAST BIENVILLE WATER SYSTEM SALINE, LA · 348 people · Groundwater BRYCELAND WATER SYSTEM BIENVILLE, LA · 342 people · Groundwater BELLA VISTA MHP WATER SYSTEM SHREVEPORT, LA · 330 people · Groundwater OAK MEADOWS SUBDIVISION WATER SYSTEM LAKE CHARLES, LA · 318 people · Groundwater LUCKY WATERWORKS BIENVILLE, LA · 315 people · Groundwater HILLSIDE MOBILE HOME PARK SHREVEPORT, LA · 309 people · Surface Water Purchased STONEGATE MANUFACTURED HOME COMMUNITY SHREVEPORT, LA · 309 people · Surface Water Purchased MAGNOLIA-UTILITY SERVICE OF LAKE CHARLES DES PERES, MO · 306 people · Groundwater ST MARYS WATER SYSTEM PLAIN DEALING, LA · 294 people · Groundwater MAGNOLIA-BRIGAS ESTATES DES PERES, MO · 294 people · Groundwater HUNTINGTON MOBILE HOME PARK WATER SYSTEM SHREVEPORT, LA · 291 people · Surface Water Purchased SUGARCANE TOWNES WATER SYSTEM IOWA, LA · 288 people · Groundwater Purchased