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States → New Mexico

Community Water System · PWS NM3538309

Tyrone Mdwca

Silver City, New Mexico 88062 - drinking water served from groundwater sources to 70 people, tracked in EPA SDWIS and UCMR5.

70
People served
356
EPA violations
70
Health-based
Untested
UCMR5 result

The verdict

EPA records 356 drinking-water violations at Tyrone Mdwca, 20% of them health-based - above the New Mexico per-system average.

356
Total EPA violations on record
20%
Health-based (MCL / treatment failure)
70
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tyrone Mdwca

Tyrone Mdwca is a local-owned community water system that delivers drinking water to 70 residents in Silver City, New Mexico (Grant County) through 30 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 356 total violations for this system , of which 70 (20%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 198 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 77 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 New Mexico, EPA tracks 1,037 public water systems serving 2,027,497 people, with 154,522 cumulative violations and 38,650 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 149 violations. Statewide, 70 of 72 UCMR5-tested systems have reported PFAS detections (97.2%).

Tyrone Mdwca's 356 violations sit above the New Mexico 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
70
Total Violations
356
Health-Based Violations
70
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
30
County
Grant
School/Daycare
No
MCL Violations
36
Monitoring Violations
198
Treatment Tech Violations
34

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 77 2015
Chlorine MR 56 2018
Public Notice Other 39 2024
Coliform (TCR) MCL 35 2015
Groundwater Rule TT 32 2022
Consumer Confidence Rule Other 23 2014
TTHM MR 21 2016
Total Haloacetic Acids (HAA5) MR 21 2016
Lead and Copper Rule MR 9 2021
E. COLI MR 6 2013
Revised Total Coliform Rule MON 4 2018
Groundwater Rule Other 4 2022
Asbestos MR 4 2020
LEAD AND COPPER RULE REVISIONS TT 2 2024
LEAD AND COPPER RULE REVISIONS RPT 2 2024
Fluoride MCL 1 1984

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 Tyrone Mdwca.

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 NM3538309 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Mexico Drinking Water Authority

New Mexico'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 NM 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
2024 Public Notice Other 39 SDWIS / NM3538309 / 7500
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / NM3538309 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / NM3538309 / 5200
2022 Groundwater Rule TT 32 SDWIS / NM3538309 / 0700
2022 Groundwater Rule Other 4 SDWIS / NM3538309 / 0700
2021 Lead and Copper Rule MR 9 SDWIS / NM3538309 / 5000
2020 Asbestos MR 4 SDWIS / NM3538309 / 1094
2018 Chlorine MR 56 SDWIS / NM3538309 / 0999
2018 Revised Total Coliform Rule MON 4 SDWIS / NM3538309 / 8000
2016 TTHM MR 21 SDWIS / NM3538309 / 2950
2016 Total Haloacetic Acids (HAA5) MR 21 SDWIS / NM3538309 / 2456
2015 Coliform (TCR) MR 77 SDWIS / NM3538309 / 3100
2015 Coliform (TCR) MCL 35 SDWIS / NM3538309 / 3100
2014 Consumer Confidence Rule Other 23 SDWIS / NM3538309 / 7000
2013 E. COLI MR 6 SDWIS / NM3538309 / 3014

How Tyrone Mdwca Compares

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

Metric Tyrone Mdwca New Mexico avg Federal benchmark
Total violations 356 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 70 37.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 97.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 70 1,955 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,037 regulated public water systems in New Mexico.

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 Tyrone Mdwca water safe to drink? ▼
Tyrone Mdwca (PWS ID: NM3538309) has 356 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 70 people using Groundwater sources.
How many people does Tyrone Mdwca serve? ▼
Tyrone Mdwca serves 70 people in Silver City, New Mexico. It is a Local-owned system using Groundwater water sources with 30 service connections.
What type of violations does Tyrone Mdwca have? ▼
Tyrone Mdwca has 356 total violations: 70 health-based violations (MCL exceedances or treatment failures), 198 monitoring/reporting violations, and 34 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Tyrone Mdwca water? ▼
No PFAS testing data is available for Tyrone Mdwca under the EPA's UCMR5 monitoring program.
What water source does Tyrone Mdwca use? ▼
Tyrone Mdwca 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.