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Counties → Montana

Carbon County, Montana

SDWIS compliance plate

Sheet MT009 · Carbon County 36 sys · 5,566 viol · #2432/3254

VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 94.4% flagged
  • HEALTH-LOW 4.6% health
  • RANK-LOWER #2432/3254
  • PHOTO-FINISH ±0.6 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-SMALL 36 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: Fergus County (+ 0.6 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Carbon County ranks #2,432 of 3,254 counties by people served, and #25 of 56 counties in Montana. See methodology · corpus placement.

Carbon County standing, mid-flagged corpus third

Flagged-system rate 94.4% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.6% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Carbon County . Population served ranks #2,432 of 3,254 · #25 of 56 in Montana.

Flagged-rate neighbourhood around Carbon County

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

0% 20% 40% 60% 80% 100% Powder River · lowest Fergus · near Missoula · near Petroleum · highest 66.7% 94.4% 95% 95% 95.1% 95.2% 100%

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

Water Systems

System Name Population Violations PFAS
Red Lodge Mtn Main Lodge 2,006 28 -
Red Lodge Water Dept 2,000 27 -
Bridger Town Of 750 106 -
Joliet Town Of 600 244 -
Fromberg Town Of 500 994 -
Bridger Rest Area 400 63 -
Rock Creek Resort Red Lodge 320 102 -
Roberts Wua Carbon Co Water and Sewer 300 133 -
Rockvale Travel Plaza Joliet 300 353 -
Belfry Carbon Co Water and Sewer Dist 205 20 -
Fort Rockvale Restaurant 202 92 -
Bearcreek Municipal Water Sys 200 1,555 -
Red Lodge Mtn Midway Lodge 150 21 -
Red Lodge KOA Office 102 30 -
Roberts Rest Area 100 34 -
Quick Stop Drive IN 100 100 -
Red Lodge KOA Campground 100 79 -
Beartooth Mountain Youth Camp 75 62 -
Timbercrest Girl Scout Camp 50 99 -
Cooney Enterprises 50 348 -
Rio Vista Estates HOA Assoc Inc 50 168 -
Silver Run School 50 3 -
Vwa Services 50 0 -
Greenough Lake Cg Well No 1 50 31 -
Basin Campground 50 66 -
Evergreen Subdivision 45 107 -
Limber Pine Campground 40 26 -
Parkside Campground 40 67 -
Canyon Ranches Subdivision 36 0 -
Westminster Spires Camp 30 24 -
Alpine Lodge RV Park 30 6 -
Edgar Bar 27 42 -
Beartooth Iga Sparkling Pure 25 3 -
Beartooth Spring Water 25 420 -
Cooney St Pk Marshall Cove Cg 25 86 -
Cooney St Pk Red Lodge Creek Cg 25 27 -

Compare beyond Montana

Mid-flagged peers for Carbon County

Cross-state counties nearest Carbon County on flagged-system share (94.4%) and cumulative violation count (5,566). 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.