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Community Water System · PWS NM3520508

Riverside Mdwa

Artesia, New Mexico 88210 - drinking water served from groundwater sources to 227 people, tracked in EPA SDWIS and UCMR5.

227
People served
228
EPA violations
64
Health-based
Untested
UCMR5 result

The verdict

EPA records 228 drinking-water violations at Riverside Mdwa, 28% of them health-based - above the New Mexico per-system average.

228
Total EPA violations on record
28%
Health-based (MCL / treatment failure)
227
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Riverside Mdwa

Riverside Mdwa is a local-owned community water system that delivers drinking water to 227 residents in Artesia, New Mexico (Eddy County) through 85 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 228 total violations for this system , of which 64 (28%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 100 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 55 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. Statewide, 70 of 72 UCMR5-tested systems have reported PFAS detections (97.2%).

Riverside Mdwa's 228 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
227
Total Violations
228
Health-Based Violations
64
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
85
County
Eddy
School/Daycare
No
MCL Violations
55
Monitoring Violations
100
Treatment Tech Violations
9

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 55 2014
Coliform (TCR) MR 46 2014
Consumer Confidence Rule Other 23 2014
E. COLI MR 20 2014
Public Notice Other 13 2025
Groundwater Rule TT 9 2015
Chlorine MR 7 2020
Total Haloacetic Acids (HAA5) MR 7 2018
TTHM MR 7 2018
Lead and Copper Rule MR 7 2022
Revised Total Coliform Rule MON 3 2020
Asbestos MR 2 2002
Fluoride MR 1 1980
Coliform (Pre-TCR) Other 1 1990

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 Riverside Mdwa.

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 NM3520508 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 Public Notice Other 13 SDWIS / NM3520508 / 7500
2022 Lead and Copper Rule MR 7 SDWIS / NM3520508 / 5000
2020 Chlorine MR 7 SDWIS / NM3520508 / 0999
2020 Revised Total Coliform Rule MON 3 SDWIS / NM3520508 / 8000
2018 Total Haloacetic Acids (HAA5) MR 7 SDWIS / NM3520508 / 2456
2018 TTHM MR 7 SDWIS / NM3520508 / 2950
2015 Groundwater Rule TT 9 SDWIS / NM3520508 / 0700
2014 Coliform (TCR) MCL 55 SDWIS / NM3520508 / 3100
2014 Coliform (TCR) MR 46 SDWIS / NM3520508 / 3100
2014 Consumer Confidence Rule Other 23 SDWIS / NM3520508 / 7000
2014 E. COLI MR 20 SDWIS / NM3520508 / 3014
2002 Asbestos MR 2 SDWIS / NM3520508 / 1094
1990 Coliform (Pre-TCR) Other 1 SDWIS / NM3520508 / 3000
1980 Fluoride MR 1 SDWIS / NM3520508 / 1025

How Riverside Mdwa Compares

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

Metric Riverside Mdwa New Mexico avg Federal benchmark
Total violations 228 149 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 227 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 Riverside Mdwa water safe to drink? ▼
Riverside Mdwa (PWS ID: NM3520508) has 228 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 227 people using Groundwater sources.
How many people does Riverside Mdwa serve? ▼
Riverside Mdwa serves 227 people in Artesia, New Mexico. It is a Local-owned system using Groundwater water sources with 85 service connections.
What type of violations does Riverside Mdwa have? ▼
Riverside Mdwa has 228 total violations: 64 health-based violations (MCL exceedances or treatment failures), 100 monitoring/reporting violations, and 9 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Riverside Mdwa water? ▼
No PFAS testing data is available for Riverside Mdwa under the EPA's UCMR5 monitoring program.
What water source does Riverside Mdwa use? ▼
Riverside Mdwa 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.