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States → EPA Region 8 — Tribal Water Systems

Community Water System · PWS 084690029

North Martin Water System

Pine Ridge, EPA Region 8 — Tribal Water Systems 57770 - drinking water served from groundwater sources to 78 people, tracked in EPA SDWIS and UCMR5.

78
People served
31
EPA violations
11
Health-based
Untested
UCMR5 result

The verdict

EPA records 31 drinking-water violations at North Martin Water System, 35% of them health-based.

31
Total EPA violations on record
35%
Health-based (MCL / treatment failure)
78
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: North Martin Water System

North Martin Water System is a native american-owned community water system that delivers drinking water to 78 residents in Pine Ridge, EPA Region 8 — Tribal Water Systems through 13 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 31 total violations for this system , of which 11 (35%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 19 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Arsenic, recorded in 8 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.

EPA Region 8 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
78
Total Violations
31
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
13
School/Daycare
No
MCL Violations
10
Monitoring Violations
19
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 8 2022
Coliform (TCR) MR 7 2013
Arsenic MR 5 2022
TTHM MR 2 2017
Total Haloacetic Acids (HAA5) MR 2 2017
Coliform (TCR) MCL 2 2013
CYANIDE MR 1 2017
Revised Total Coliform Rule MON 1 2019
Groundwater Rule TT 1 2022
Consumer Confidence Rule Other 1 2013
Fluoride MR 1 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 North Martin 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 084690029 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 8 — Tribal Water Systems Drinking Water Authority

EPA Region 8 — Tribal Water Systems'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 08 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
2022 Arsenic MCL 8 SDWIS / 084690029 / 1005
2022 Arsenic MR 5 SDWIS / 084690029 / 1005
2022 Groundwater Rule TT 1 SDWIS / 084690029 / 0700
2019 Revised Total Coliform Rule MON 1 SDWIS / 084690029 / 8000
2017 TTHM MR 2 SDWIS / 084690029 / 2950
2017 Total Haloacetic Acids (HAA5) MR 2 SDWIS / 084690029 / 2456
2017 CYANIDE MR 1 SDWIS / 084690029 / 1024
2014 Fluoride MR 1 SDWIS / 084690029 / 1025
2013 Coliform (TCR) MR 7 SDWIS / 084690029 / 3100
2013 Coliform (TCR) MCL 2 SDWIS / 084690029 / 3100
2013 Consumer Confidence Rule Other 1 SDWIS / 084690029 / 7000

How North Martin Water System Compares

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

Metric North Martin Water System EPA Region 8 — Tribal Water Systems avg Federal benchmark
Total violations 31 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 11 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 78 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 8 — Tribal Water Systems.

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 North Martin Water System water safe to drink? ▼
North Martin Water System (PWS ID: 084690029) has 31 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 78 people using Groundwater sources.
How many people does North Martin Water System serve? ▼
North Martin Water System serves 78 people in Pine Ridge, EPA Region 8 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 13 service connections.
What type of violations does North Martin Water System have? ▼
North Martin Water System has 31 total violations: 11 health-based violations (MCL exceedances or treatment failures), 19 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in North Martin Water System water? ▼
No PFAS testing data is available for North Martin Water System under the EPA's UCMR5 monitoring program.
What water source does North Martin Water System use? ▼
North Martin 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.