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Community Water System · PWS ID1400039

Murray Water Assn Inc

Murray, Idaho 83874 - drinking water served from groundwater sources to 35 people, tracked in EPA SDWIS and UCMR5.

35
People served
245
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 245 drinking-water violations at Murray Water Assn Inc - above the Idaho per-system average.

245
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
35
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Murray Water Assn Inc

Murray Water Assn Inc is a local-owned community water system that delivers drinking water to 35 residents in Murray, Idaho (Shoshone County) through 40 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 245 total violations for this system , of which 1 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 234 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is E. COLI, recorded in 19 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Idaho, EPA tracks 2,005 public water systems serving 1,743,912 people, with 104,850 cumulative violations and 19,965 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 52.3 violations. Statewide, 40 of 60 UCMR5-tested systems have reported PFAS detections (66.7%).

Murray Water Assn Inc's 245 violations sit above the Idaho average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
35
Total Violations
245
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
40
County
Shoshone
School/Daycare
No
MCL Violations
1
Monitoring Violations
234
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
E. COLI MR 19 2025
Revised Total Coliform Rule MON 19 2025
Nitrate MR 13 2010
Barium MR 5 1996
Cadmium MR 5 1996
Chromium MR 5 1996
Mercury MR 5 1996
Selenium MR 5 1996
2,4-D MR 5 1996
2,4,5-TP MR 5 1996
Xylenes, Total MR 5 1996
o-Dichlorobenzene MR 5 1996
1,1-Dichloroethylene MR 5 1996
trans-1,2-Dichloroethylene MR 5 1996
1,2-Dichloroethane MR 5 1996
1,1,1-Trichloroethane MR 5 1996
Carbon tetrachloride MR 5 1996
1,2-Dichloropropane MR 5 1996
Benzene MR 5 1996
Ethylbenzene MR 5 1996
Styrene MR 5 1996
cis-1,2-Dichloroethylene MR 5 1996
p-Dichlorobenzene MR 5 1996
Tetrachloroethylene MR 5 1996
CHLOROBENZENE MR 5 1996
Toluene MR 5 1996
Lead and Copper Rule MR 5 2013
Trichloroethylene MR 5 1996
Arsenic MR 5 2001
Coliform (TCR) MR 4 2015

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Murray Water Assn Inc.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID ID1400039 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Idaho Drinking Water Authority

Idaho's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find ID regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 E. COLI MR 19 SDWIS / ID1400039 / 3014
2025 Revised Total Coliform Rule MON 19 SDWIS / ID1400039 / 8000
2015 Coliform (TCR) MR 4 SDWIS / ID1400039 / 3100
2014 Groundwater Rule Other 2 SDWIS / ID1400039 / 0700
2013 Lead and Copper Rule MR 5 SDWIS / ID1400039 / 5000
2010 Nitrate MR 13 SDWIS / ID1400039 / 1040
2001 Arsenic MR 5 SDWIS / ID1400039 / 1005
1998 Coliform (TCR) MCL 1 SDWIS / ID1400039 / 3100
1996 Barium MR 5 SDWIS / ID1400039 / 1010
1996 Cadmium MR 5 SDWIS / ID1400039 / 1015
1996 Chromium MR 5 SDWIS / ID1400039 / 1020
1996 Mercury MR 5 SDWIS / ID1400039 / 1035
1996 Selenium MR 5 SDWIS / ID1400039 / 1045
1996 2,4-D MR 5 SDWIS / ID1400039 / 2105
1996 2,4,5-TP MR 5 SDWIS / ID1400039 / 2110

How Murray Water Assn Inc Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Murray Water Assn Inc Idaho avg Federal benchmark
Total violations 245 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 66.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 35 870 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,005 regulated public water systems in Idaho.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Murray Water Assn Inc water safe to drink? ▼
Murray Water Assn Inc (PWS ID: ID1400039) has 245 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 35 people using Groundwater sources.
How many people does Murray Water Assn Inc serve? ▼
Murray Water Assn Inc serves 35 people in Murray, Idaho. It is a Local-owned system using Groundwater water sources with 40 service connections.
What type of violations does Murray Water Assn Inc have? ▼
Murray Water Assn Inc has 245 total violations: 1 health-based violations (MCL exceedances or treatment failures), 234 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Murray Water Assn Inc water? ▼
No PFAS testing data is available for Murray Water Assn Inc under the EPA's UCMR5 monitoring program.
What water source does Murray Water Assn Inc use? ▼
Murray Water Assn Inc uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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 system's figures are rendered directly from 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.