| CENTRAL ARKANSAS WATER | | 368,455 | 0.0036 mg/L |
| FAYETTEVILLE WATERWORKS | | 116,398 | 0.0030 mg/L |
| SPRINGDALE WATER UTILITIES | | 98,948 | 0.0030 mg/L |
| FORT SMITH WATER UTILITIES | | 86,209 | 0.0059 mg/L |
| JONESBORO WATER SYSTEM | | 81,888 | 0.0141 mg/L |
| ROGERS WATER UTILITIES | | 81,443 | 0.0030 mg/L |
| HOT SPRINGS UTILITIES | | 75,343 | 0.0030 mg/L |
| CONWAY WATER SYSTEM | | 64,008 | 0.0060 mg/L |
| BENTONVILLE WATER UTILITIES | | 51,250 | 0.0037 mg/L |
| TEXARKANA WATER UTILITIES | | 50,815 | 0.0052 mg/L |
| LIBERTY UTILITIES | | 43,438 | 0.0030 mg/L |
| BELLA VISTA POA | | 39,419 | 0.0038 mg/L |
| JACKSONVILLE WATERWORKS | | 32,875 | 0.0057 mg/L |
| PARAGOULD MUNICIPAL UTILITIES | | 31,188 | 0.0046 mg/L |
| BENTON WATERWORKS | | 30,681 | 0.0035 mg/L |
| CABOT WATERWORKS | | 30,063 | 0.0050 mg/L |
| CITY CORPORATION | | 29,260 | 0.0054 mg/L |
| SEARCY WATERWORKS | | 28,196 | 0.0075 mg/L |
| CENTERTON WATERWORKS | | 27,243 | 0.0088 mg/L |
| VILONIA WATERWORKS | | 24,690 | 0.0240 mg/L |
| WEST MEMPHIS WATERWORKS | | 24,419 | 0.0038 mg/L |
| SALEM WATER USERS LLC | | 22,775 | 0.0024 mg/L |
| VAN BUREN WATERWORKS | | 22,725 | 0.0030 mg/L |
| SILOAM SPRINGS WATERWORKS | | 21,430 | 0.0061 mg/L |
| TRI-COUNTY WATER DISTBR DIST | | 20,394 | 0.0124 mg/L |
| WASHINGTON WATER AUTHORITY WWA | | 20,140 | 0.0047 mg/L |
| MOUNTAIN HOME WATERWORKS | | 19,618 | 0.0085 mg/L |
| BRYANT WATERWORKS | | 19,607 | 0.0038 mg/L |
| COMMUNITY WATER SYSTEM | | 18,628 | 0.0329 mg/L |
| EL DORADO WATERWORKS | | 17,932 | 0.0080 mg/L |
| HARRISON WATERWORKS | | 17,455 | 0.0442 mg/L |
| HOT SPRINGS VILLAGE WATERWORKS | | 15,985 | 0.0064 mg/L |
| SARDIS WATER ASSOCIATION | | 15,660 | 0.0040 mg/L |
| BATESVILLE WATER UTILITIES | | 15,621 | 0.0030 mg/L |
| GRAND PRAIRIE REGIONAL WATER | | 15,204 | 0.0036 mg/L |
| MALVERN WATERWORKS | | 14,410 | 0.0030 mg/L |
| HEBER SPRINGS WATER SYSTEM | | 14,015 | 0.0091 mg/L |
| GRAND PRAIRIE BAYOU 2 PWA | | 13,519 | 0.0120 mg/L |
| CAMDEN WATERWORKS | | 13,275 | 0.0048 mg/L |
| MARION WATERWORKS | | 13,032 | 0.0141 mg/L |
| BLYTHEVILLE WATERWORKS | | 12,981 | 0.0040 mg/L |
| GREENBRIER WATERWORKS | | 12,938 | 0.0070 mg/L |
| PEA RIDGE WATERWORKS | | 12,795 | 0.0084 mg/L |
| KIMZEY REGIONAL WATER DISTRICT | | 12,718 | 0.0050 mg/L |
| WARD WATERWORKS | | 12,579 | 0.0102 mg/L |
| SW WHITE COUNTY WATER ASSN | | 12,173 | 0.0090 mg/L |
| ARKADELPHIA WATERWORKS | | 11,855 | 0.0045 mg/L |
| MAGNOLIA WATERWORKS | | 11,657 | 0.0045 mg/L |
| JAMES FORK REGIONAL WATER DISTRICT | | 11,538 | 0.0030 mg/L |
| HOPE WATER LIGHT COMM | | 11,500 | 0.0077 mg/L |
| MADISON CO WATER FACILITIES BD | | 11,435 | 0.0072 mg/L |
| MID-ARKANSAS UTILITIES P.W.A | | 11,148 | 0.0045 mg/L |
| CLINTON WATERWORKS | | 10,280 | 0.0046 mg/L |
| TRUMANN WATERWORKS | | 10,000 | 0.0048 mg/L |
| FORREST CITY WATERWORKS | | 9,986 | 0.0040 mg/L |
| GREENWOOD WATERWORKS | | 9,905 | 0.0030 mg/L |
| PRAIRIE GROVE WATERWORKS | | 9,615 | 0.0050 mg/L |
| SOUTHWEST WATER USERS LLC | | 9,573 | 0.0023 mg/L |
| CLARKSVILLE CONNECTED UTILITIES | | 9,410 | 0.0030 mg/L |
| MOUNTAIN TOP WATER ASSOCIATION | | 9,253 | 0.0105 mg/L |
| SOUTHSIDE PUB WATER AUTHORITY | | 9,108 | 0.0060 mg/L |
| CROSS COUNTY RURAL WATER SYS | | 8,750 | 0.0040 mg/L |
| US AIR FORCE BASE LITTLE ROCK | | 8,618 | 0.0030 mg/L |
| CEDARVILLE WATERWORKS FBCC | | 8,529 | 0.0068 mg/L |
| BEEBE WATERWORKS | | 8,451 | 0.0090 mg/L |
| MONTICELLO WATER DEPARTMENT | | 8,442 | 0.0030 mg/L |
| WYNNE WATERWORKS | | 8,391 | 0.0030 mg/L |
| N GARLAND CO REG WATER DIST | | 7,913 | 0.0040 mg/L |
| GENTRY WATERWORKS | | 7,910 | 0.0047 mg/L |
| CROSSETT WATER COMMISSION | | 7,900 | 0.0060 mg/L |
| POCAHONTAS WATERWORKS | | 7,752 | 0.0030 mg/L |
| LAWRENCE CO REG WATER DIST | | 7,469 | 0.0037 mg/L |
| STUTTGART WATERWORKS | | 7,393 | 0.0030 mg/L |
| MAYFLOWER WATERWORKS | | 7,390 | 0.0087 mg/L |
| YORKTOWN WATER ASSOCIATION | | 7,364 | 0.0068 mg/L |
| TONTITOWN WATERWORKS | | 7,355 | 0.0046 mg/L |
| NASHVILLE RURAL WATER AUTHORITY | | 7,291 | 0.0057 mg/L |
| NE YELL COUNTY WATER ASSOC | | 7,198 | 0.0103 mg/L |
| HWY 63 WATER ASSOCIATION | | 7,187 | 0.0037 mg/L |
| WESTERN GREENE COUNTY R W D | | 7,095 | 0.0075 mg/L |
| BERRYVILLE WATERWORKS | | 6,813 | 0.0060 mg/L |
| BENTON COUNTY WATER DISTRICT #1 | | 6,730 | 0.0057 mg/L |
| LINCOLN WATERWORKS | | 6,690 | 0.0030 mg/L |
| TUMBLING SHOALS WATER ASSOC | | 6,608 | 0.0070 mg/L |
| DUMAS WATERWORKS | | 6,338 | 0.0030 mg/L |
| MOUNT OLIVE WATER ASSOCIATION | | 6,308 | 0.0072 mg/L |
| HWY 71 WATER DISTRICT #1 PWA | | 6,275 | 0.0030 mg/L |
| GREEN FOREST WATERWORKS | | 6,265 | 0.0034 mg/L |
| NEWPORT WATERWORKS | | 6,204 | 0.0030 mg/L |
| MOUNTAIN VIEW WATERWORKS | | 6,153 | 0.0038 mg/L |
| ALMA WATERWORKS | | 6,123 | 0.0090 mg/L |
| DEQUEEN WATER WORK | | 6,105 | 0.0150 mg/L |
| OSCEOLA WATERWORKS | | 6,053 | 0.0036 mg/L |
| WARREN WATERWORKS | | 6,001 | 0.0050 mg/L |
| EAST END WATER | | 5,954 | 0.0040 mg/L |
| WALNUT RIDGE WATERWORKS | | 5,823 | 0.0036 mg/L |
| BARLING WATERWORKS | | 5,822 | 0.0030 mg/L |
| HORSEHEAD WATER ASSOCIATION | | 5,792 | 0.0030 mg/L |
| WEST HELENA WATER WORKS | | 5,693 | 0.0148 mg/L |
| CLAY CO REG WATER DISTRICT | | 5,633 | 0.0030 mg/L |