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Community Water System · PWS ID4200033

New Horizons Water Inc

Mountain Home, Idaho 83647 - drinking water served from groundwater sources to 85 people, tracked in EPA SDWIS and UCMR5.

85
People served
55
EPA violations
14
Health-based
Untested
UCMR5 result

The verdict

EPA records 55 drinking-water violations at New Horizons Water Inc, 25% of them health-based - above the Idaho per-system average.

55
Total EPA violations on record
25%
Health-based (MCL / treatment failure)
85
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: New Horizons Water Inc

New Horizons Water Inc is a private-owned community water system that delivers drinking water to 85 residents in Mountain Home, Idaho (Elmore County) through 29 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 55 total violations for this system , of which 14 (25%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 37 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 Lead and Copper Rule, recorded in 15 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%).

New Horizons Water Inc's 55 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
85
Total Violations
55
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
29
County
Elmore
School/Daycare
No
MCL Violations
11
Monitoring Violations
37
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 15 2024
Coliform (TCR) MR 13 2014
Coliform (TCR) MCL 11 2012
Chlorine MR 3 2018
E. COLI MR 3 2022
LEAD AND COPPER RULE REVISIONS TT 3 2024
LEAD AND COPPER RULE REVISIONS RPT 2 2024
Public Notice Other 2 2025
Di(2-ethylhexyl) phthalate MR 1 1996
Radium-226 MR 1 2008
Gross Alpha, Excl. Radon and U MR 1 2008

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 New Horizons Water 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 ID4200033 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 Public Notice Other 2 SDWIS / ID4200033 / 7500
2024 Lead and Copper Rule MR 15 SDWIS / ID4200033 / 5000
2024 LEAD AND COPPER RULE REVISIONS TT 3 SDWIS / ID4200033 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / ID4200033 / 5200
2022 E. COLI MR 3 SDWIS / ID4200033 / 3014
2018 Chlorine MR 3 SDWIS / ID4200033 / 0999
2014 Coliform (TCR) MR 13 SDWIS / ID4200033 / 3100
2012 Coliform (TCR) MCL 11 SDWIS / ID4200033 / 3100
2008 Radium-226 MR 1 SDWIS / ID4200033 / 4020
2008 Gross Alpha, Excl. Radon and U MR 1 SDWIS / ID4200033 / 4000
1996 Di(2-ethylhexyl) phthalate MR 1 SDWIS / ID4200033 / 2039

How New Horizons Water Inc Compares

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

Metric New Horizons Water Inc Idaho avg Federal benchmark
Total violations 55 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 14 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 85 870 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 New Horizons Water Inc water safe to drink? ▼
New Horizons Water Inc (PWS ID: ID4200033) has 55 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 85 people using Groundwater sources.
How many people does New Horizons Water Inc serve? ▼
New Horizons Water Inc serves 85 people in Mountain Home, Idaho. It is a Private-owned system using Groundwater water sources with 29 service connections.
What type of violations does New Horizons Water Inc have? ▼
New Horizons Water Inc has 55 total violations: 14 health-based violations (MCL exceedances or treatment failures), 37 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in New Horizons Water Inc water? ▼
No PFAS testing data is available for New Horizons Water Inc under the EPA's UCMR5 monitoring program.
What water source does New Horizons Water Inc use? ▼
New Horizons Water 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.