454 water systems in Arkansas have at least one health-based violation on record. The system with the most health-based violations is Lee County Water Association in Marianna with 205 health-based violations. Health-based violations mean a system exceeded an EPA maximum contaminant level or failed required treatment standards.
| Water System | City | Population | Health Violations | Total Violations |
|---|
| Lee County Water Association |
Marianna | 3,770 |
205 | 335 |
| Moro Waterworks |
Moro | 219 |
161 | 199 |
| Mount Ida Waterworks |
Mount Ida | 3,218 |
114 | 164 |
| Oden-Pencil Bluff Water Assn |
Oden | 393 |
107 | 137 |
| Hosanna Heights Water |
Mammoth Spring | 52 |
95 | 332 |
| Milltown-Washburn Water Users |
Greenwood | 3,837 |
94 | 96 |
| Montgomery Co Regional Pwa |
Mount Ida | 0 |
92 | 109 |
| Leisure Hills Mobile Home Park |
Siloam Springs | 113 |
87 | 138 |
| Bodcaw Rural Water System |
Rosston | 1,430 |
83 | 117 |
| Danville Waterworks |
Danville | 2,810 |
83 | 99 |
| Lakeside Water Association |
Waldo | 1,876 |
78 | 78 |
| New London Water Association |
Strong | 850 |
76 | 140 |
| Humphrey Waterworks |
Humphrey | 602 |
73 | 286 |
| Morning Star Public Water Authority |
Marshall | 1,543 |
71 | 117 |
| Pangburn Waterworks |
Pangburn | 2,936 |
69 | 222 |
| Pickens Waterworks |
Pickens | 49 |
69 | 210 |
| Nashville Rural Water Authority |
Nashville | 7,291 |
68 | 75 |
| Cave Springs Waterworks |
Cave Springs | 5,365 |
65 | 171 |
| Guion Water Department |
Pleasant Grove | 249 |
64 | 64 |
| Deer Run Water Company |
Batesville | 119 |
63 | 138 |
| Compton Waterworks |
Compton | 990 |
63 | 90 |
| Wilmot Waterworks |
Wilmot | 416 |
60 | 84 |
| Fouke Waterworks |
Fouke | 955 |
58 | 175 |
| Southwest Arkansas Water System |
Hope | 2,335 |
57 | 65 |
| Hackett Waterworks |
Hackett | 1,090 |
55 | 68 |
| Tri County Rwdd - Moores Chapel |
Russellville | 3,112 |
54 | 54 |
| Blue Mountain Waterworks |
Blue Mountain | 357 |
52 | 62 |
| Walnut Hill Water Association |
Bradley | 275 |
50 | 52 |
| East Monroe County Water Users |
Brinkley | 730 |
46 | 104 |
| Washington Water Authority Wwa |
Farmington | 20,140 |
44 | 68 |
| Little River Co Rda |
Foreman | 4,279 |
44 | 48 |
| Norman Waterworks |
Norman | 750 |
43 | 54 |
| Ozan Creek Water System |
Blevins | 787 |
43 | 46 |
| Montrose Boydell Water System |
Montrose | 473 |
42 | 85 |
| Grand Prairie Regional Water |
Stuttgart | 15,204 |
42 | 56 |
| Joiner Rural Water |
Joiner | 343 |
40 | 106 |
| Diamond City Water |
Diamond City | 1,290 |
40 | 86 |
| Chicot Junction Water Assoc |
Lake Village | 616 |
40 | 67 |
| Horatio Waterworks |
Horatio | 1,278 |
40 | 62 |
| Des Arc Waterworks |
Des Arc | 4,245 |
40 | 52 |
| Hartford Waterworks |
Hartford | 725 |
39 | 141 |
| Ark St Park-Queen Wilhelmina |
Mena | 223 |
38 | 51 |
| Deer Water Association |
Deer | 938 |
35 | 63 |
| Central Arkansas Water Paron |
Little Rock | 2,025 |
34 | 62 |
| Swifton Waterworks |
Swifton | 1,013 |
34 | 46 |
| Mansfield Waterworks |
Mansfield | 2,367 |
34 | 43 |
| Hwy 4 24 Water Association |
Camden | 2,135 |
34 | 41 |
| Lurton-Pelsor Water Assoc |
Pelsor | 345 |
32 | 50 |
| Randolph Water System |
Junction City | 249 |
32 | 35 |
| Walker Water Association |
Magnolia | 1,182 |
31 | 74 |
| Belleville Water |
Belleville | 1,103 |
31 | 44 |
| Arkansas City Waterworks |
Arkansas City | 376 |
31 | 34 |
| Prairie Grove Waterworks |
Prairie Grove | 9,615 |
31 | 31 |
| Clarendon Waterworks |
Clarendon | 1,320 |
29 | 48 |
| Helena Water Sewer |
Helena | 2,708 |
29 | 47 |
| Lake Chicot Water Association |
Lake Village | 1,909 |
28 | 47 |
| Tontitown Waterworks |
Tontitown | 7,355 |
28 | 43 |
| East Logan Co Rural Water |
New Blaine | 2,263 |
28 | 37 |
| Green Hill-Brooks Chapel Water |
Monticello | 597 |
27 | 57 |
| Cove Waterworks |
Cove | 651 |
27 | 27 |
| Pyatt Waterworks |
Pyatt | 488 |
26 | 172 |
| Harmony Water Association |
El Dorado | 336 |
26 | 30 |
| Branch Water Works |
Branch | 500 |
25 | 32 |
| Cotton Plant Waterworks |
Cotton Plant | 435 |
24 | 162 |
| Magnolia Waterworks |
Magnolia | 11,657 |
24 | 124 |
| Keo Water Works |
Keo | 402 |
24 | 73 |
| United Water Association |
Brinkley | 450 |
24 | 65 |
| Ola Waterworks |
Ola | 1,204 |
24 | 36 |
| Huntington Waterworks |
Huntington | 782 |
24 | 35 |
| Damascus Water Works |
Damascus | 2,235 |
24 | 25 |
| Biscoe Waterworks |
Biscoe | 388 |
24 | 24 |
| Holly Grove Waterworks |
Holly Grove | 1,557 |
23 | 109 |
| Watson Waterworks |
Watson | 166 |
23 | 30 |
| Winthrop Water Association |
Foreman | 338 |
22 | 50 |
| Dyer Waterworks |
Dyer | 1,028 |
21 | 43 |
| Star City Waterworks |
Star City | 2,173 |
21 | 38 |
| Havana Waterworks |
Havana | 1,411 |
21 | 34 |
| Ne Yell County Water Assoc |
Dardanelle | 7,198 |
21 | 30 |
| Wooster Waterworks |
Wooster | 5,000 |
21 | 29 |
| Benton-Washington Regional Pwa |
Rogers | 30 |
21 | 27 |
| James Fork Regional Water District |
Greenwood | 11,538 |
21 | 25 |
| South Pike Co Water |
Murfreesboro | 755 |
21 | 21 |
| Fulton Waterworks |
Hope | 379 |
20 | 65 |
| Delight Waterworks |
Delight | 1,577 |
20 | 39 |
| Willisville Waterworks |
Willisville | 430 |
20 | 32 |
| Tri-County Water Distbr Dist |
Russelville | 20,394 |
20 | 22 |
| Gentry Waterworks |
Gentry | 7,910 |
20 | 20 |
| Lake Lucerne Estates |
Eureka Springs | 65 |
19 | 50 |
| North Howard Rural Water Association |
Umpire | 710 |
19 | 35 |
| Antoine Waterworks |
Antoine | 563 |
19 | 34 |
| Murfreesboro Waterworks |
Murfreesboro | 1,645 |
19 | 24 |
| Banks Waterworks |
El Dorado | 244 |
18 | 72 |
| West Helena Water Works |
Helena | 5,693 |
18 | 48 |
| Casa Water Dept |
Casa | 1,500 |
18 | 34 |
| Beaverfork Pwa |
Conway | 4,220 |
18 | 29 |
| Kibler Water System |
Van Buren | 1,815 |
18 | 24 |
| Bigelow Waterworks |
Perryville | 605 |
18 | 22 |
| Mulberry Waterworks |
Mulberry | 1,648 |
18 | 21 |
| Trumann Waterworks |
Trumann | 10,000 |
18 | 18 |
| Clinton Waterworks |
Clinton | 6,680 |
18 | 18 |