PlainWater
Counties → Montana

Sanders County, Montana

Water Systems
44
Population Served
9,212
Total Violations
3,111
459 health-based
PFAS Detected
0
of 0 tested

Violation Analysis

88.6%
Systems with Violations
70.7
Avg Violations per System
14.8%
Health-Based Violations

Water Source Types

GW
44 systems (100%)

Compliance Snapshot

Sanders Montana water systems by violation status, EPA SDWIS records.

No violations on record (5) One or more violations (39)

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
Thompson Falls City Of 1,950 38 -
Plains Town Of 1,700 373 -
Hot Springs Municipal Water 600 118 -
One Stop 500 237 -
Sanders County Harvest Foods 445 284 -
Water Service Inc Trout Creek 350 25 -
Noxon Water District 330 17 -
Aitkens Quik Stop Noxon 306 34 -
Thompson Falls Dollar General 303 0 -
Rimrock Lodge 223 114 -
Salish Shores Trade Winds Comm Village 215 102 -
Paradise Water District 200 57 -
Quinns Hot Springs Resort 155 93 -
Camp Bighorn 146 78 -
Cabinet Ranger Station 145 21 -
Cabinet Mountain Bible Church 140 0 -
Woodside Park County Water and Sewer Dis 115 39 -
Thompson Falls Family Dollar Store 108 0 -
Lds Church Plains 100 41 -
Heron Community Water System 84 304 -
Crescent Village Property Owners Associa 80 36 -
Clear View Academy 70 24 -
North Shore Estates HOA 65 124 -
Two Rivers RV Park 62 50 -
Silver Tip Junction 62 41 -
Birdland Bay RV Resort 60 18 -
Symes Hotel 54 26 -
Riverfront Motel 53 47 -
Thompson Falls Golf Course 52 92 -
Second Home Restaurant 51 8 -
Crown Passage Northwest LLC Boys 51 74 -
Hereford Bar and Grill 47 82 -
Avista Utilities Noxon Rapids Dam 43 17 -
Crown Passage Northwest LLC Girls 43 114 -
Thompson Falls Mt State Park 42 6 -
Jehovahs Witnesses Noxon Kingdom Hall 35 11 -
Clear View Horizon Academy Unapproved 32 154 -
Deemer Creek Business Park 31 6 -
Wild Coyote Saloon 31 64 -
Bear Creek Resort 29 14 -
Plains Alliance Church 27 85 -
Tammaro Water Bottling 27 0 -
Plains Physical Therapy Clinic 25 43 -
Beagles Bakery & Espresso 25 0 -

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 Sanders County? ▼
Sanders County has 3,111 total drinking water violations across 44 water systems, of which 459 are health-based violations. 88.6% of systems have at least one violation.
How many people get water from Sanders County systems? ▼
Water systems in Sanders County serve approximately 9,212 people through 44 public water systems.
Has PFAS been detected in Sanders County water? ▼
No PFAS testing data is available for water systems in Sanders County.
What types of water sources supply Sanders County? ▼
Water systems in Sanders County use GW (44 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. 14.8% of Sanders 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.