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LUMMI TRIBAL WATER DISTRICT

PWS ID: 105300002 · BELLINGHAM, 10 98226

LUMMI TRIBAL WATER DISTRICT serves 3,699 people in BELLINGHAM, 10 using Surface Water water sources. It has 271 recorded EPA violations, including 9 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LUMMI TRIBAL WATER DISTRICT

LUMMI TRIBAL WATER DISTRICT is a native american-owned community water system that delivers drinking water to 3,699 residents in BELLINGHAM, 10 through 1,124 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 271 total violations for this system , of which 9 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 244 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 31 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across 10, EPA tracks 158 public water systems serving 142,574 people, with 31,953 cumulative violations and 1,055 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 202.2 violations. LUMMI TRIBAL WATER DISTRICT's 271 violations sit above the 10 average. Statewide, 2 of 10 UCMR5-tested systems have reported PFAS detections (20%). 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
3,699
Total Violations
271
Health-Based Violations
9
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Native American
Connections
1,124
School/Daycare
No
MCL Violations
8
Monitoring Violations
244
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 31 2015
Nitrate MR 30 2023
Chlorine MR 17 2024
Combined Radium (-226 and -228) MR 16 2017
Gross Alpha, Excl. Radon and U MR 16 2017
Combined Uranium MR 15 2017
Revised Total Coliform Rule MON 14 2021
Arsenic MR 13 2023
Consumer Confidence Rule Other 11 2025
TTHM MR 9 2023
Total Haloacetic Acids (HAA5) MR 9 2023
Arsenic MCL 7 2013
Lead and Copper Rule MR 4 2021
Benzene MR 4 2017
Asbestos MR 3 2008
cis-1,2-Dichloroethylene MR 3 2017
o-Dichlorobenzene MR 3 2017
Vinyl chloride MR 3 2017
1,1-Dichloroethylene MR 3 2017
1,2-Dichloroethane MR 3 2017
1,1,1-Trichloroethane MR 3 2017
1,2-Dichloropropane MR 3 2017
Trichloroethylene MR 3 2017
Tetrachloroethylene MR 3 2017
CHLOROBENZENE MR 3 2017
1,2,4-Trichlorobenzene MR 3 2017
Xylenes, Total MR 3 2017
DICHLOROMETHANE MR 3 2017
p-Dichlorobenzene MR 3 2017
trans-1,2-Dichloroethylene MR 3 2017

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 400 samples detected PFAS.

Contaminant Date Result MRL Status
PFUnA 8/4/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/4/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/4/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/4/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/4/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/4/2025 <9 µg/L 9 µg/L Not Detected
9Cl-PF3ONS 8/4/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFPeA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 8/4/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/4/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/4/2025 <0.02 µg/L 0.02 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 LUMMI TRIBAL WATER DISTRICT.

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 105300002 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

10 Drinking Water Authority

10'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
2025 Consumer Confidence Rule Other 11 SDWIS / 105300002 / 7000
2024 Chlorine MR 17 SDWIS / 105300002 / 0999
2024 Revised Total Coliform Rule RPT 1 SDWIS / 105300002 / 8000
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / 105300002 / 5200
2024 Public Notice Other 1 SDWIS / 105300002 / 7500
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / 105300002 / 5200
2023 Nitrate MR 30 SDWIS / 105300002 / 1040
2023 Arsenic MR 13 SDWIS / 105300002 / 1005
2023 TTHM MR 9 SDWIS / 105300002 / 2950
2023 Total Haloacetic Acids (HAA5) MR 9 SDWIS / 105300002 / 2456
2021 Revised Total Coliform Rule MON 14 SDWIS / 105300002 / 8000
2021 Lead and Copper Rule MR 4 SDWIS / 105300002 / 5000
2019 E. COLI MR 1 SDWIS / 105300002 / 3014
2017 Combined Radium (-226 and -228) MR 16 SDWIS / 105300002 / 4010
2017 Gross Alpha, Excl. Radon and U MR 16 SDWIS / 105300002 / 4000

How LUMMI TRIBAL WATER DISTRICT Compares

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

Metric LUMMI TRIBAL WATER DISTRICT 10 avg Federal benchmark
Total violations 271 202.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 9 6.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 20% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,699 902 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 158 regulated public water systems in 10.

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 LUMMI TRIBAL WATER DISTRICT water safe to drink? ▼
LUMMI TRIBAL WATER DISTRICT (PWS ID: 105300002) has 271 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,699 people using Surface Water sources.
How many people does LUMMI TRIBAL WATER DISTRICT serve? ▼
LUMMI TRIBAL WATER DISTRICT serves 3,699 people in BELLINGHAM, 10. It is a Native American-owned system using Surface Water water sources with 1,124 service connections.
What type of violations does LUMMI TRIBAL WATER DISTRICT have? ▼
LUMMI TRIBAL WATER DISTRICT has 271 total violations: 9 health-based violations (MCL exceedances or treatment failures), 244 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LUMMI TRIBAL WATER DISTRICT water? ▼
No. LUMMI TRIBAL WATER DISTRICT was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does LUMMI TRIBAL WATER DISTRICT use? ▼
LUMMI TRIBAL WATER DISTRICT uses Surface Water 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 PlainWater Editorial