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OTIS MDWCA

PWS ID: NM3521308 · CARLSBAD, New Mexico 88221

OTIS MDWCA serves 4,807 people in CARLSBAD, New Mexico using Groundwater water sources. It has 257 recorded EPA violations, including 72 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: OTIS MDWCA

OTIS MDWCA is a local-owned community water system that delivers drinking water to 4,807 residents in CARLSBAD, New Mexico (Eddy County) through 1,800 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 257 total violations for this system , of which 72 (28%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 98 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 Groundwater Rule, recorded in 42 violations (TT, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 59.5 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. OTIS MDWCA's 257 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,807
Total Violations
257
Health-Based Violations
72
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,800
County
Eddy
School/Daycare
No
MCL Violations
30
Monitoring Violations
98
Treatment Tech Violations
42

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 42 2018
Consumer Confidence Rule Other 35 2024
Coliform (TCR) MCL 30 2006
Chlorine MR 30 2025
Revised Total Coliform Rule MON 21 2025
TTHM MR 18 2022
Total Haloacetic Acids (HAA5) MR 18 2022
Public Notice Other 16 2025
Lead and Copper Rule MR 6 2023
Asbestos MR 5 2020

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 7/8/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 7/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 7/8/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 7/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/8/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 7/8/2024 <0.008 µg/L 0.008 µg/L Not Detected
lithium 7/8/2024 52.6000 µg/L 9 µg/L Detected
PFDA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 7/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 7/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 7/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/8/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/8/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 1/22/2024 <0.02 µg/L 0.02 µg/L Not Detected
lithium 1/22/2024 59.5000 µg/L 9 µg/L Detected
PFDoA 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 1/22/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 1/22/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 1/22/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 1/22/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 1/22/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 1/22/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 1/22/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 1/22/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 1/22/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 1/22/2024 <0.004 µg/L 0.004 µg/L Not Detected

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 OTIS 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 NM3521308 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 Chlorine MR 30 SDWIS / NM3521308 / 0999
2025 Revised Total Coliform Rule MON 21 SDWIS / NM3521308 / 8000
2025 Public Notice Other 16 SDWIS / NM3521308 / 7500
2024 Consumer Confidence Rule Other 35 SDWIS / NM3521308 / 7000
2023 Lead and Copper Rule MR 6 SDWIS / NM3521308 / 5000
2022 TTHM MR 18 SDWIS / NM3521308 / 2950
2022 Total Haloacetic Acids (HAA5) MR 18 SDWIS / NM3521308 / 2456
2020 Asbestos MR 5 SDWIS / NM3521308 / 1094
2018 Groundwater Rule TT 42 SDWIS / NM3521308 / 0700
2006 Coliform (TCR) MCL 30 SDWIS / NM3521308 / 3100

How OTIS MDWCA Compares

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

Metric OTIS MDWCA New Mexico avg Federal benchmark
Total violations 257 149 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 72 37.3 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 97.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,807 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 OTIS MDWCA water safe to drink? ▼
OTIS MDWCA (PWS ID: NM3521308) has 257 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 4,807 people using Groundwater sources.
How many people does OTIS MDWCA serve? ▼
OTIS MDWCA serves 4,807 people in CARLSBAD, New Mexico. It is a Local-owned system using Groundwater water sources with 1,800 service connections.
What type of violations does OTIS MDWCA have? ▼
OTIS MDWCA has 257 total violations: 72 health-based violations (MCL exceedances or treatment failures), 98 monitoring/reporting violations, and 42 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OTIS MDWCA water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in OTIS MDWCA's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does OTIS MDWCA use? ▼
OTIS 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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