How many water violations are in Benton County?

Benton County has 2,082 total drinking water violations across 58 water systems, of which 602 are health-based violations. 89.7% of systems have at least one violation.

How many people get water from Benton County systems?

Water systems in Benton County serve approximately 374,691 people through 58 public water systems.

Has PFAS been detected in Benton County water?

Under EPA UCMR5, 2 of 12 tested systems in Benton County had at least one PFAS detection (16.7% of the UCMR5-tested subset - not of all 58 SDWIS systems).

What types of water sources supply Benton County?

Water systems in Benton County use SW (47 systems), GW (11 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 28.9% of Benton County's violations are health-based. Among counties with any SDWIS violations, this extract puts Benton County in the higher health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Benton County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Benton County ranks #192 of 3,254 counties by people served, and #2 of 75 counties in Arkansas. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Arkansas

Benton County, Arkansas

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet AR007 · Benton County 58 sys · 2,082 viol · #192/3254

VIOL-SEVERE · HEALTH-MID · RANK-TOP · PHOTO-FINISH · PFAS-LOW · SRC-SW · SYS-MID · BOOK-FULL

VIOL-SEVERE 89.7% flagged
HEALTH-MID 28.9% health
RANK-TOP #192/3254
PHOTO-FINISH ±0.3 pp
PFAS-LOW 16.7% detect
SRC-SW SW lead 81%
SYS-MID 58 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Randolph County (+ 0.3 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Benton County ranks #192 of 3,254 counties by people served, and #2 of 75 counties in Arkansas. See methodology · corpus placement.

Benton County standing, lower-flagged corpus third

Flagged-system rate 89.7% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 28.9% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 16.7% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #192 of 3,254 · #2 of 75 in Arkansas.

Water Systems

System Name	Population	Violations	PFAS
Springdale Water Utilities	98,948	3	Clean
Rogers Water Utilities	81,443	1	Clean
Bentonville Water Utilities	51,250	23	Detected
Bella Vista POA	39,419	54	Clean
Centerton Waterworks	27,243	82	Clean
Siloam Springs Waterworks	21,430	28	Detected
Pea Ridge Waterworks	10,820	4	Clean
Gentry Waterworks	7,910	20	Clean
Benton County Water District #1	6,730	12	Clean
Cave Springs Waterworks	5,365	337	Clean
Gravette Waterworks	4,900	17	Clean
Highfill Water Department	3,970	69	-
NW Arkansas Regional Airport	3,538	38	-
Decatur Waterworks	2,468	135	Clean
Gateway Public Water Authority	2,325	24	-
Benton County Water Authority5	1,813	36	-
Lost Bridge Vill Wat-Sew Dists	1,050	27	-
Garfield Waterworks	758	59	-
Camp War Eagle	700	4	-
Benton County Water Authority4	635	32	-
Sulphur Springs Waterworks	580	46	-
Oakhills Surb Improvment Dist	133	37	-
Leisure Hills Mobile Home Park	113	255	-
Old Bella Vista POA	83	195	-
Beaver Water District	54	1	-
Mountain Development	50	79	-
Ventris Trails End Resort	50	0	-
Pine Top Water Facilities Board	48	2	-
Primo Refill Wmsc 5260 Rogers	30	12	-
Primo Wmnm5738 Springdale	30	3	-
Glacier Merc101 Springdale	30	21	-
Glacier Smerc300 Rogers	30	9	-
Glacier Water Famd4372 Rogers	30	3	-
Primo Refill LLC Akins Nf19 Rogers	30	0	-
Primo Refill LLC Wmnm4686 Bentonville	30	2	-
Primo Wmnm6953 Centerton	30	2	-
Primo Wmnm6971 Pea Ridge	30	19	-
Primo Wmnm6960 Siloam Springs	30	0	-
Primo Wmnm2686 Bentonville	30	0	-
Primo Wmnm4376 Bentonville	30	5	-
Primo Wmnm3654 Rogers	30	6	-
Primo Wmnm3164 Bentonville	30	0	-
Primo Wmnm4516 Fayetteville	30	4	-
Primo Glacier Hf122 Centerton	30	2	-
Primo Cvs10519 Springdale	30	0	-
Primo Wmsc0100 Bentonville	30	14	-
Primo Refill Rogers Wal-Mart 01	30	29	-
Primo Refill Siloam Springs Iga	30	10	-
Primo Refill Neighborhood Market	30	9	-
Primo Refill Wmsc0004 Siloam Sp	30	18	-

Compare beyond Arkansas

Lower-flagged peers for Benton County

Cross-state counties nearest Benton County on flagged-system share (89.7%) and cumulative violation count (2,082). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.