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States → EPA Region 10 — Tribal Water Systems

Non-Transient Non-Community Water System · PWS 105300084

Nooksack Market

Deming, EPA Region 10 — Tribal Water Systems 98244 - drinking water served from groundwater sources to 300 people, tracked in EPA SDWIS and UCMR5.

300
People served
170
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 170 drinking-water violations at Nooksack Market, 6% of them health-based.

170
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
300
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Nooksack Market

Nooksack Market is a native american-owned non-transient non-community water system that delivers drinking water to 300 residents in Deming, EPA Region 10 — Tribal Water Systems through 3 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 170 total violations for this system , of which 10 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 155 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 Coliform (TCR), recorded in 28 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 10 — 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
300
Total Violations
170
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
3
School/Daycare
No
MCL Violations
0
Monitoring Violations
155
Treatment Tech Violations
10

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 28 2015
Chlorine MR 14 2018
Nitrate MR 12 2023
Lead and Copper Rule MR 10 2023
Groundwater Rule TT 10 2022
TTHM MR 9 2022
Revised Total Coliform Rule MON 9 2019
Total Haloacetic Acids (HAA5) MR 9 2022
Public Notice Other 4 2023
2,3,7,8-TCDD MR 2 2014
Hexachlorocyclopentadiene MR 1 2014
Atrazine MR 1 2014
Heptachlor MR 1 2014
Heptachlor epoxide MR 1 2014
2,4-D MR 1 2014
2,4,5-TP MR 1 2014
HEXACHLOROBENZENE MR 1 2014
Pentachlorophenol MR 1 2014
Total Polychlorinated Biphenyls (PCB) MR 1 2014
1,2-DIBROMO-3-CHLOROPROPANE MR 1 2014
ETHYLENE DIBROMIDE MR 1 2014
Arsenic MR 1 2014
CYANIDE MR 1 2014
Antimony, Total MR 1 2014
Chromium MR 1 2014
Mercury MR 1 2014
Asbestos MR 1 2008
Beryllium, Total MR 1 2014
Thallium, Total MR 1 2014
Selenium 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 Nooksack Market.

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 105300084 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 10 — Tribal Water Systems Drinking Water Authority

EPA Region 10 — 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 10 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 Nitrate MR 12 SDWIS / 105300084 / 1040
2023 Lead and Copper Rule MR 10 SDWIS / 105300084 / 5000
2023 Public Notice Other 4 SDWIS / 105300084 / 7500
2022 Groundwater Rule TT 10 SDWIS / 105300084 / 0700
2022 TTHM MR 9 SDWIS / 105300084 / 2950
2022 Total Haloacetic Acids (HAA5) MR 9 SDWIS / 105300084 / 2456
2019 Revised Total Coliform Rule MON 9 SDWIS / 105300084 / 8000
2018 Chlorine MR 14 SDWIS / 105300084 / 0999
2015 Coliform (TCR) MR 28 SDWIS / 105300084 / 3100
2014 2,3,7,8-TCDD MR 2 SDWIS / 105300084 / 2063
2014 Hexachlorocyclopentadiene MR 1 SDWIS / 105300084 / 2042
2014 Atrazine MR 1 SDWIS / 105300084 / 2050
2014 Heptachlor MR 1 SDWIS / 105300084 / 2065
2014 Heptachlor epoxide MR 1 SDWIS / 105300084 / 2067
2014 2,4-D MR 1 SDWIS / 105300084 / 2105

How Nooksack Market Compares

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

Metric Nooksack Market EPA Region 10 — Tribal Water Systems avg Federal benchmark
Total violations 170 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 300 - 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 10 — 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 Nooksack Market water safe to drink? ▼
Nooksack Market (PWS ID: 105300084) has 170 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 300 people using Groundwater sources.
How many people does Nooksack Market serve? ▼
Nooksack Market serves 300 people in Deming, EPA Region 10 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 3 service connections.
What type of violations does Nooksack Market have? ▼
Nooksack Market has 170 total violations: 10 health-based violations (MCL exceedances or treatment failures), 155 monitoring/reporting violations, and 10 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Nooksack Market water? ▼
No PFAS testing data is available for Nooksack Market under the EPA's UCMR5 monitoring program.
What water source does Nooksack Market use? ▼
Nooksack Market uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.