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Counties → Montana

Beaverhead County, Montana

SDWIS compliance plate

Sheet MT001 · Beaverhead County 48 sys · 6,629 viol · #2400/3254

VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 12.2% health
  • RANK-LOWER #2400/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 98%
  • SYS-MID 48 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Silver Bow County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Beaverhead County ranks #2,400 of 3,254 counties by people served, and #22 of 56 counties in Montana. See methodology · corpus placement.

Beaverhead County standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 12.2% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #2,400 of 3,254 · #22 of 56 in Montana.

Flagged-rate neighbourhood around Beaverhead County

Lowest/highest poles plus in-state counties nearest Beaverhead County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Powder River · lowest Petroleum · highest Mineral · near Madison · near 66.7% 100% 100% 100% 100% 100% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Dillon City Of 4,300 16 Clean
Town Pump Dillon 2 924 74 -
Bannack St Park Visitor Center 410 13 -
Maverick Mountain Resort LLC 340 82 -
Keller Subdivision No 2 HOA 300 57 -
Hildreth Subdivision No 2 300 267 -
Lima Town Of 279 176 -
Big Hole National Battlefield 214 32 -
Fetty's LLC 211 234 -
Wise River Club 208 132 -
Beaverhead River RV Park & Campground 200 32 -
Hildreth Subdivision No 3 128 146 -
Country Side RV Park 108 57 -
Lewis and Clark Campground 90 80 -
Birch Creek Outdoor Ed Center 90 46 -
Bannack State Park Upper Cg 82 15 -
H Bar J Saloon and Cafe 75 274 -
Western Mobile Village Dillon 75 648 -
Skyline Tr CT and RV Park 75 893 -
Clarks Lookout 62 281 -
Beaverhead Jackson Water and Sewer Dist 58 1,241 -
Antler Saloon 54 403 -
Price Creek Campground 52 32 -
Grasshopper Campground 52 68 -
Divide Campground Blm 50 34 -
Wise River Ranger Station 49 95 -
Bee Hive Homes of Dillon 47 158 -
Elkhorn Hotsprings Resort LLC 45 189 -
Crystal Park 45 28 -
Southside RV Park Well No 1 40 20 -
Elevation Newco, LLC 40 188 -
Southside RV Park Well No 2 40 16 -
Wisdom Ranger Station Office 40 84 -
Elk Lake Resort 38 50 -
Kingdom Hall of Jehovahs Witnesses 35 39 -
Buffalo Lodge Bar 30 56 -
Twin Lakes Campground 30 51 -
The Dewey Bar 28 89 -
Beaverhead Campground South 25 43 -
Beaverhead Campground North 25 21 -
Beaverhead Campground Middle 25 21 -
Hap Hawkins Campground 25 6 -
Cameahwait Campground East 25 23 -
Lone Tree Campground 25 23 -
Horse Prairie Campground East 25 33 -
Horse Prairie Campground West 25 34 -
Safeway No 1581 25 2 -
Barretts Diversion Dam Cg South 25 27 -

Compare beyond Montana

Mid-flagged peers for Beaverhead County

Cross-state counties nearest Beaverhead County on flagged-system share (100.0%) and cumulative violation count (6,629). 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

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.