PlainWater
States → Idaho

Community Water System · PWS ID7260026

M and T Water and Sewer Dist

Monteview, Idaho 83435 - drinking water served from groundwater sources to 358 people, tracked in EPA SDWIS and UCMR5.

358
People served
42
EPA violations
7
Health-based
Untested
UCMR5 result

The verdict

EPA records 42 drinking-water violations at M and T Water and Sewer Dist, 17% of them health-based - below the Idaho per-system average.

42
Total EPA violations on record
17%
Health-based (MCL / treatment failure)
358
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: M and T Water and Sewer Dist

M and T Water and Sewer Dist is a local-owned community water system that delivers drinking water to 358 residents in Monteview, Idaho (Jefferson County) through 94 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 42 total violations for this system , of which 7 (17%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 33 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 14 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%).

M and T Water and Sewer Dist's 42 violations sit below 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
358
Total Violations
42
Health-Based Violations
7
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
94
County
Jefferson
School/Daycare
No
MCL Violations
7
Monitoring Violations
33
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 14 2011
Coliform (TCR) MCL 7 2012
Nitrate MR 6 2018
Lead and Copper Rule MR 6 2021
Combined Uranium MR 2 2008
Gross Alpha, Excl. Radon and U MR 2 2008
Atrazine MR 1 2002
Antimony, Total MR 1 2002
Thallium, Total MR 1 2002

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 M and T Water and Sewer Dist.

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 ID7260026 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
2021 Lead and Copper Rule MR 6 SDWIS / ID7260026 / 5000
2018 Nitrate MR 6 SDWIS / ID7260026 / 1040
2012 Coliform (TCR) MCL 7 SDWIS / ID7260026 / 3100
2011 Coliform (TCR) MR 14 SDWIS / ID7260026 / 3100
2008 Combined Uranium MR 2 SDWIS / ID7260026 / 4006
2008 Gross Alpha, Excl. Radon and U MR 2 SDWIS / ID7260026 / 4000
2002 Atrazine MR 1 SDWIS / ID7260026 / 2050
2002 Antimony, Total MR 1 SDWIS / ID7260026 / 1074
2002 Thallium, Total MR 1 SDWIS / ID7260026 / 1085

How M and T Water and Sewer Dist Compares

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

Metric M and T Water and Sewer Dist Idaho avg Federal benchmark
Total violations 42 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 7 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 358 870 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 M and T Water and Sewer Dist water safe to drink? ▼
M and T Water and Sewer Dist (PWS ID: ID7260026) has 42 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 358 people using Groundwater sources.
How many people does M and T Water and Sewer Dist serve? ▼
M and T Water and Sewer Dist serves 358 people in Monteview, Idaho. It is a Local-owned system using Groundwater water sources with 94 service connections.
What type of violations does M and T Water and Sewer Dist have? ▼
M and T Water and Sewer Dist has 42 total violations: 7 health-based violations (MCL exceedances or treatment failures), 33 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in M and T Water and Sewer Dist water? ▼
No PFAS testing data is available for M and T Water and Sewer Dist under the EPA's UCMR5 monitoring program.
What water source does M and T Water and Sewer Dist use? ▼
M and T Water and Sewer Dist 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.