PlainWater

Wheatland County, Montana

SDWIS compliance plate

Sheet MT107 · Wheatland County 8 sys · 546 viol · #3007/3254

VIOL-SEVERE · HEALTH-LOW · RANK-BOTTOM · BELOW-PEER · PFAS-NONE · SRC-GW · SYS-TINY · BOOK-MOST

  • VIOL-SEVERE 87.5% flagged
  • HEALTH-LOW 9.3% health
  • RANK-BOTTOM #3007/3254
  • BELOW-PEER 1.1 pp cleaner
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-TINY 8 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: Sanders County (+ 1.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Wheatland County ranks #3,007 of 3,254 counties by people served, and #41 of 56 counties in Montana. See methodology · corpus placement.

Wheatland County standing, lower-flagged corpus third

Flagged-system rate 87.5% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 9.3% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Wheatland County . Population served ranks #3,007 of 3,254 · #41 of 56 in Montana.

Flagged-rate neighbourhood around Wheatland County

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

0% 20% 40% 60% 80% 100% Powder River · lowest Sanders · near Toole · near Petroleum · highest 66.7% 87.5% 88.6% 88.9% 88.9% 91.3% 100%

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

Water Systems

System Name Population Violations PFAS
Cmrwa Musselshell Judith Rural Water Sys 1,100 0 -
Harlowton City Of 1,050 118 -
Martinsdale Colony 150 37 -
Judith Gap Town Of 126 64 -
Springwater Colony 100 38 -
Duncan Ranch Colony 96 252 -
Two DOT Water Users Company 50 34 -
Midtown Market 25 3 -

Compare beyond Montana

Lower-flagged peers for Wheatland County

Cross-state counties nearest Wheatland County on flagged-system share (87.5%) and cumulative violation count (546). 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
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.