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TWIN FORKS MDWCA

PWS ID: NM3571119 · MAYHILL, New Mexico 88339

TWIN FORKS MDWCA serves 1,274 people in MAYHILL, New Mexico using Groundwater water sources. It has 335 recorded EPA violations, including 95 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: TWIN FORKS MDWCA

TWIN FORKS MDWCA is a local-owned community water system that delivers drinking water to 1,274 residents in MAYHILL, New Mexico (Otero County) through 479 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 335 total violations for this system , of which 95 (28%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 206 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 Coliform (TCR), recorded in 60 violations (MCL, health-based). 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. TWIN FORKS MDWCA's 335 violations sit above the New Mexico average. Statewide, 70 of 72 UCMR5-tested systems have reported PFAS detections (97.2%). 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
1,274
Total Violations
335
Health-Based Violations
95
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
479
County
Otero
School/Daycare
No
MCL Violations
60
Monitoring Violations
206
Treatment Tech Violations
35

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 60 2005
Lead and Copper Rule MR 31 2010
Interim Enhanced Surface Water Treatment Rule TT 24 2010
Surface Water Treatment Rule MR 21 2008
Consumer Confidence Rule Other 19 2025
TTHM MR 16 2019
Total Haloacetic Acids (HAA5) MR 16 2019
Interim Enhanced Surface Water Treatment Rule MR 10 2010
Surface Water Treatment Rule TT 9 2008
Public Notice Other 7 2022
Coliform (TCR) MR 4 2002
Revised Total Coliform Rule MON 4 2020
Chlorine MR 3 2020
Endrin MR 2 2014
Toxaphene MR 2 2014
Endothall MR 2 2014
Glyphosate MR 2 2014
Di(2-ethylhexyl) adipate MR 2 2014
OXAMYL MR 2 2014
Simazine MR 2 2014
Di(2-ethylhexyl) phthalate MR 2 2014
Dinoseb MR 2 2014
Hexachlorocyclopentadiene MR 2 2014
Carbofuran MR 2 2014
Atrazine MR 2 2014
LASSO MR 2 2014
Heptachlor epoxide MR 2 2014
2,4-D MR 2 2014
2,4,5-TP MR 2 2014
Benzo(a)pyrene MR 2 2014

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 TWIN FORKS 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 NM3571119 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
2025 Consumer Confidence Rule Other 19 SDWIS / NM3571119 / 7000
2022 Public Notice Other 7 SDWIS / NM3571119 / 7500
2020 Revised Total Coliform Rule MON 4 SDWIS / NM3571119 / 8000
2020 Chlorine MR 3 SDWIS / NM3571119 / 0999
2019 TTHM MR 16 SDWIS / NM3571119 / 2950
2019 Total Haloacetic Acids (HAA5) MR 16 SDWIS / NM3571119 / 2456
2014 Endrin MR 2 SDWIS / NM3571119 / 2005
2014 Toxaphene MR 2 SDWIS / NM3571119 / 2020
2014 Endothall MR 2 SDWIS / NM3571119 / 2033
2014 Glyphosate MR 2 SDWIS / NM3571119 / 2034
2014 Di(2-ethylhexyl) adipate MR 2 SDWIS / NM3571119 / 2035
2014 OXAMYL MR 2 SDWIS / NM3571119 / 2036
2014 Simazine MR 2 SDWIS / NM3571119 / 2037
2014 Di(2-ethylhexyl) phthalate MR 2 SDWIS / NM3571119 / 2039
2014 Dinoseb MR 2 SDWIS / NM3571119 / 2041

How TWIN FORKS MDWCA Compares

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

Metric TWIN FORKS MDWCA New Mexico avg Federal benchmark
Total violations 335 149 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 95 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 1,274 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is TWIN FORKS MDWCA water safe to drink? ▼
TWIN FORKS MDWCA (PWS ID: NM3571119) has 335 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,274 people using Groundwater sources.
How many people does TWIN FORKS MDWCA serve? ▼
TWIN FORKS MDWCA serves 1,274 people in MAYHILL, New Mexico. It is a Local-owned system using Groundwater water sources with 479 service connections.
What type of violations does TWIN FORKS MDWCA have? ▼
TWIN FORKS MDWCA has 335 total violations: 95 health-based violations (MCL exceedances or treatment failures), 206 monitoring/reporting violations, and 35 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in TWIN FORKS MDWCA water? ▼
No PFAS testing data is available for TWIN FORKS MDWCA under the EPA's UCMR5 monitoring program.
What water source does TWIN FORKS MDWCA use? ▼
TWIN FORKS 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.

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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.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial