County · Arkansas
Benton County, Arkansas: drinking water records
This overview covers 18 ZIP codes and 28 community water systems in Benton County. It also stands in for 1 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Bella Vista Poa AR0000039 | 39,419 | 120 | 0 | 2 | 1 ppb |
| Siloam Springs Waterworks AR0000056 | 21,430 | 120 | 3 | 1 | 1 ppb |
| Washington Water Authority Wwa AR0000574 | 20,140 | 120 | 0 | 4 | 1 ppb |
| Cave Springs Waterworks AR0000043 | 5,365 | 120 | 0 | 13 | 1 ppb |
| Springdale Water Utilities AR0000575 | 98,948 | 120 | 0 | 0 | 1 ppb |
| Rogers Water Utilities AR0000055 | 81,443 | 120 | 0 | 0 | 1 ppb |
| Bentonville Water Utilities AR0000041 | 51,250 | 120 | 1 | 0 | 1 ppb |
| Centerton Waterworks AR0000044 | 27,243 | 120 | 0 | 0 | 1 ppb |
| Pea Ridge Waterworks AR0000053 | 12,795 | 120 | 0 | 0 | 1 ppb |
| Madison Co Water Facilities Bd AR0000349 | 11,435 | 120 | 0 | 0 | 2 ppb |
| Gentry Waterworks AR0000048 | 7,910 | 120 | 0 | 0 | 1 ppb |
| Benton County Water District #1 AR0000037 | 6,730 | 120 | 0 | 0 | 1 ppb |
| Gravette Waterworks AR0000051 | 4,900 | 120 | 0 | 0 | 1 ppb |
| Decatur Waterworks AR0000052 | 2,468 | 180 | 0 | 0 | 3 ppb |
| Benton County Water Authority5 AR0000913 | 1,813 | 0 | 0 | 1 | 2 ppb |
| Lost Bridge Vill Wat-Sew Dists AR0000049 | 1,010 | 0 | 0 | 1 | 3 ppb |
| Garfield Waterworks AR0000047 | 758 | 0 | 0 | 1 | 2 ppb |
| Sulphur Springs Waterworks AR0000057 | 580 | 0 | 0 | 1 | 7 ppb |
| Leisure Hills Mobile Home Park AR0000747 | 113 | 0 | 0 | 35 | 3 ppb |
| Old Bella Vista Poa AR0000753 | 83 | 0 | 0 | 4 | 3 ppb |
| Highfill Water Department AR0000885 | 3,970 | 0 | 0 | 0 | 1 ppb |
| Gateway Public Water Authority AR0000693 | 2,325 | 0 | 0 | 0 | 2 ppb |
| Benton County Water Authority4 AR0000899 | 673 | 0 | 0 | 0 | 2 ppb |
| Oakhills Surb Improvment Dist AR0000676 | 133 | 0 | 0 | 0 | 11 ppb |
| Madison Co Regional Water AR0000803 | 4 | 0 | 0 | 1 | not reported |
ZIP reports in Benton County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 72713.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.