PlainWater
Counties → Montana

Sweet Grass County, Montana

Water Systems
15
Population Served
7,279
Total Violations
1,071
263 health-based
PFAS Detected
0
of 0 tested

Violation Analysis

100.0%
Systems with Violations
71.4
Avg Violations per System
24.6%
Health-Based Violations

Water Source Types

GW
14 systems (93%)
SW
1 system (7%)

Compliance Snapshot

Sweet Grass Montana water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (15)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Greycliff Rest Area Eastbound 2,500 119 -
Big Timber City Of 1,650 108 -
Greycliff Rest Area Westbound 1,000 61 -
Big Timber KOA 600 100 -
Stillwater East Boulder 380 8 -
Town Pump 1033 Big Timber # 2 318 105 -
Clydehurst Christian Ranch 175 48 -
Camp on the Boulder 150 213 -
Greycliff Mill 150 6 -
Lazy K Bar Ranch 69 11 -
Spring Creek Cg and Trout Ranch 64 83 -
Town Pump Big Timber Super 8 63 43 -
Strobel Trailer Court 60 10 -
Camp Mimanagish 50 87 -
Cottonwood Estates 50 69 -

Other Counties in Montana

Yellowstone County
116 systems · 168,956 served · 16,006 violations
Gallatin County
207 systems · 147,444 served · 30,683 violations
Missoula County
243 systems · 138,758 served · 31,553 violations
Flathead County
324 systems · 105,538 served · 20,270 violations
Cascade County
98 systems · 96,521 served · 15,613 violations
Lewis and Clark County
162 systems · 67,948 served · 24,270 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Sweet Grass County? ▼
Sweet Grass County has 1,071 total drinking water violations across 15 water systems, of which 263 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Sweet Grass County systems? ▼
Water systems in Sweet Grass County serve approximately 7,279 people through 15 public water systems.
Has PFAS been detected in Sweet Grass County water? ▼
No PFAS testing data is available for water systems in Sweet Grass County.
What types of water sources supply Sweet Grass County? ▼
Water systems in Sweet Grass County use GW (14 systems), SW (1 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. 24.6% of Sweet Grass County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - 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 Editorial

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.