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Community Water System · PWS NM3505226

Sunlit Hills Water System

Pecos, New Mexico 87552 - drinking water served from groundwater sources to 1,018 people, tracked in EPA SDWIS and UCMR5.

1,018
People served
304
EPA violations
64
Health-based
Untested
UCMR5 result

The verdict

EPA records 304 drinking-water violations at Sunlit Hills Water System, 21% of them health-based - above the New Mexico per-system average.

304
Total EPA violations on record
21%
Health-based (MCL / treatment failure)
1,018
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sunlit Hills Water System

Sunlit Hills Water System is a private-owned community water system that delivers drinking water to 1,018 residents in Pecos, New Mexico (Santa Fe County) through 433 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 304 total violations for this system , of which 64 (21%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 160 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Groundwater Rule, recorded in 64 violations (TT, 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. Statewide, 70 of 72 UCMR5-tested systems have reported PFAS detections (97.2%).

Sunlit Hills Water System's 304 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
1,018
Total Violations
304
Health-Based Violations
64
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
433
County
Santa Fe
School/Daycare
No
MCL Violations
0
Monitoring Violations
160
Treatment Tech Violations
64

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 64 2019
Public Notice Other 36 2021
Consumer Confidence Rule Other 35 2023
Revised Total Coliform Rule MON 33 2017
Coliform (TCR) MR 14 2015
Lead and Copper Rule MR 12 2021
Combined Uranium MR 8 2008
Gross Alpha, Excl. Radon and U MR 8 2008
E. COLI MR 7 2020
CYANIDE MR 4 2005
Revised Total Coliform Rule Other 3 2016
Nitrate-Nitrite MR 3 2016
Chlordane MR 2 2008
Pentachlorophenol MR 2 2008
Benzo(a)pyrene MR 2 2008
HEXACHLOROBENZENE MR 2 2008
Heptachlor MR 2 2008
Atrazine MR 2 2008
Carbofuran MR 2 2008
Di(2-ethylhexyl) phthalate MR 2 2008
OXAMYL MR 2 2008
Di(2-ethylhexyl) adipate MR 2 2008
Diquat MR 2 2008
Dalapon MR 2 2008
Endrin MR 2 2008
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2008
Heptachlor epoxide MR 2 2008
LASSO MR 2 2008
Hexachlorocyclopentadiene MR 2 2008
Picloram MR 2 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 Sunlit Hills Water System.

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 NM3505226 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
2023 Consumer Confidence Rule Other 35 SDWIS / NM3505226 / 7000
2021 Public Notice Other 36 SDWIS / NM3505226 / 7500
2021 Lead and Copper Rule MR 12 SDWIS / NM3505226 / 5000
2020 E. COLI MR 7 SDWIS / NM3505226 / 3014
2019 Groundwater Rule TT 64 SDWIS / NM3505226 / 0700
2017 Revised Total Coliform Rule MON 33 SDWIS / NM3505226 / 8000
2016 Revised Total Coliform Rule Other 3 SDWIS / NM3505226 / 8000
2016 Nitrate-Nitrite MR 3 SDWIS / NM3505226 / 1038
2015 Coliform (TCR) MR 14 SDWIS / NM3505226 / 3100
2008 Combined Uranium MR 8 SDWIS / NM3505226 / 4006
2008 Gross Alpha, Excl. Radon and U MR 8 SDWIS / NM3505226 / 4000
2008 Chlordane MR 2 SDWIS / NM3505226 / 2959
2008 Pentachlorophenol MR 2 SDWIS / NM3505226 / 2326
2008 Benzo(a)pyrene MR 2 SDWIS / NM3505226 / 2306
2008 HEXACHLOROBENZENE MR 2 SDWIS / NM3505226 / 2274

How Sunlit Hills Water System Compares

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

Metric Sunlit Hills Water System New Mexico avg Federal benchmark
Total violations 304 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 64 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 1,018 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 Sunlit Hills Water System water safe to drink? ▼
Sunlit Hills Water System (PWS ID: NM3505226) has 304 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,018 people using Groundwater sources.
How many people does Sunlit Hills Water System serve? ▼
Sunlit Hills Water System serves 1,018 people in Pecos, New Mexico. It is a Private-owned system using Groundwater water sources with 433 service connections.
What type of violations does Sunlit Hills Water System have? ▼
Sunlit Hills Water System has 304 total violations: 64 health-based violations (MCL exceedances or treatment failures), 160 monitoring/reporting violations, and 64 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sunlit Hills Water System water? ▼
No PFAS testing data is available for Sunlit Hills Water System under the EPA's UCMR5 monitoring program.
What water source does Sunlit Hills Water System use? ▼
Sunlit Hills Water System 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.