Tapcensus

Metlakatla

Community water system in Metlakatla, Alaska, serving 1,575 people from surface water. 9 rules violated in the past three years, 3 still unresolved. Owned by tribal government.

People served 1,575 surface water
Rules violated, past 3 years 9 one rule can carry several violations
Unresolved 3 rules currently in violation, EPA data updated Oct 7, 2026
Quarters with violations 12 of the last 12 quarters

Quarterly compliance history

SQ3
2023
SQ4
2023
SQ1
2024
SQ2
2024
SQ3
2024
SQ4
2024
SQ1
2025
SQ2
2025
SQ3
2025
SQ4
2025
SQ1
2026
VQ2
2026
UQ3
2026
–No violation identified VViolation identified SSerious violator (EPA enforcement priority) UUndetermined Oldest quarter on the left. Quarters 1 to 12 are the twelve most recent official quarters at EPA's last data refresh; the 13th is the quarter in progress at that refresh, which EPA reports as undetermined.

Currently in violation

EPA data updated Oct 7, 2026

Long Term 2 Enhanced Surface Water Treatment Rule

Treatment Technique Violation Health-based

9 violations, Sep 2022 to open
EPA rule code 123 · 9 violations recorded, 3 still open, 9 health-based

Treatment Technique Violation, health-based: 9 violations, 3 still open, Sep 2022 to open. The system did not carry out a required treatment process or corrective action.

What the rule requires: The LT2 ESWTR (2006) required all surface water and GWUDI systems to monitor source water for Cryptosporidium, then apply additional treatment based on measured concentrations. Higher-bin systems (more oocysts detected) must install advanced treatment — UV disinfection, ozone, or membrane filtration — beyond the original SWTR requirements.

Health effects: Cryptosporidium is a chlorine-resistant protozoan parasite that causes cryptosporidiosis — severe watery diarrhea, cramping, nausea, and fever. In immunocompromised individuals (HIV/AIDS, transplant recipients), it can be life-threatening and prolonged. Infants and the elderly are also at elevated risk. LT2 violations indicate failure to complete monitoring or apply the required additional treatment tier. Limit: Treatment technique — additional Cryptosporidium treatment based on bin classification

About this rule

Lead and Copper Rule

Monitoring and Reporting

1 violation, Oct 2025 to open
EPA rule code 350 · 1 violation recorded, 1 still open

Monitoring and Reporting: 1 violation, open since Oct 2025. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

What the rule requires: The 1991 LCR uses action levels rather than MCLs: if the 90th percentile of high-risk tap samples exceeds 15 ppb lead or 1.3 mg/L copper, the system must take escalating corrective actions. Violations typically indicate failure to maintain adequate corrosion control — the treatment that keeps lead from leaching out of pipes, solder, and fixtures.

About this rule

Lead and Copper Rule Revisions

Treatment Technique Violation Health-based

1 violation, Oct 2024 to open
EPA rule code 351 · 1 violation recorded, 1 still open, 1 health-based

Treatment Technique Violation, health-based: 1 violation, open since Oct 2024. The system did not carry out a required treatment process or corrective action.

What the rule requires: The 2021 LCRR updated the 1991 LCR with mandatory lead service line inventories and replacement planning, a new 'trigger level' at 10 ppb requiring optimization, and strengthened public education. The 2024 Lead and Copper Rule Improvements (LCRI) further requires replacing all lead service lines within 10 years.

Health effects: Same as Lead and Copper Rule (5000). Violations typically reflect failure to complete the required lead service line inventory or submit a required replacement plan. Lead service lines are the primary source of lead at the tap in many older systems. Limit: Lead action level: 15 ppb (trigger level: 10 ppb); copper action level: 1.3 mg/L

About this rule

Also violated in the past three years

Jul to Sep 2023 to Jul to Sep 2026

Revised Total Coliform Rule

Reporting Violation

1 violation, Dec 2024 to Feb 2025
EPA rule code 111 · 1 violation recorded

Reporting Violation: 1 violation, Dec 2024 to Feb 2025. The system did not report required information on time.

What the rule requires: The 2013 RTCR (effective 2016) replaced the original TCR. It triggers automatic E. coli testing whenever total coliform is found. A single E. coli-positive sample is an acute MCL violation. It also requires systems exceeding 5% total coliform-positive samples to conduct a formal assessment and correct any deficiencies, helping prevent contamination before it escalates.

About this rule

Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Monitoring and Reporting

3 violations, Jul 2024 to Dec 2025 · Interim Enhanced Surface Water Treatment Rule
EPA rule code 122 · 3 violations recorded

Monitoring and Reporting: 3 violations, Jul 2024 to Dec 2025. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

Contaminant on the record: Interim Enhanced Surface Water Treatment Rule.

Surface Water Treatment Rule

Monitoring and Reporting

5 violations, Jul 2024 to May 2026
EPA rule code 121 · 5 violations recorded

Monitoring and Reporting: 5 violations, Jul 2024 to May 2026. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

What the rule requires: All systems using surface water (rivers, lakes, reservoirs) or groundwater under surface influence (GWUDI) must filter and disinfect. Treatment technique violations mean the system failed to maintain adequate disinfectant residual, exceeded turbidity limits, or lacked required permits. Snowmelt and storm events can raise turbidity and pathogen loads in surface water.

About this rule

Stage 1 Disinfectants and Disinfection Byproducts Rule

Monitoring and Reporting

1 violation, Dec 2024 to Jan 2025 · Chlorine (MRDL)
EPA rule code 210 · 1 violation recorded

Monitoring and Reporting: 1 violation, Dec 2024 to Jan 2025. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

Contaminant on the record: Chlorine (MRDL).

Stage 2 Disinfectants and Disinfection Byproducts Rule

Maximum Contaminant Level ViolationMonitoring and Reporting Health-based

2 violations, Jul 2023 to Sep 2025 · Total Haloacetic Acids (HAA5) · 0.133 MG/L
EPA rule code 220 · 2 violations recorded, 1 health-based

Maximum Contaminant Level Violation, health-based: 1 violation, Jul 2023 to Dec 2023. A sample exceeded the maximum contaminant level EPA allows in drinking water.

Monitoring and Reporting: 1 violation, Jul 2025 to Sep 2025. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

Measured
Total Haloacetic Acids (HAA5) 0.133 MG/L

Limit 0.06 MG/L · Jul to Sep 2023

Contaminant on the record: Total Haloacetic Acids (HAA5).

Total Haloacetic Acids (HAA5), health effects: Dichloroacetic acid is a probable human carcinogen (Group B2). Long-term exposure to trichloroacetic acid may also increase cancer risk. Animal studies show liver, kidney, and reproductive effects at high doses. Limit: 0.060 mg/L (60 ppb) locational running annual average (LRAA)

Public Notice Rule and Revised PN Rule

Other Violation

19 violations, Dec 2022 to May 2026 · Public Notification Rule
EPA rule code 410 · 19 violations recorded

Other Violation: 19 violations, Dec 2022 to May 2026. A requirement other than monitoring, reporting, or a contaminant limit, such as public notice or the annual water quality report.

Contaminant on the record: Public Notification Rule.

Lead and copper at the tap

The 90th percentile of the tap samples the system collected in its latest monitoring period, against EPA's action level. Levels vary between homes.

Lead 0 mg/L

Action level 0.015 mg/L · Jan 2020 to Dec 2022

About this data

Rules violated and the list above come from EPA's SDWIS violation records, one row per violation and contaminant, grouped by the rule each row belongs to. A violation counts when its non-compliance period ended on or after Jul 1, 2023, the start of the thirteen quarters ECHO's three-year figures cover, or is still open; it is unresolved when it was still open at EPA's data refresh on Oct 7, 2026. EPA's rule code 500, "Not Regulated", is left out, as in ECHO's counts. Each rule's violation count is EPA's, and one rule can carry several: a missed monitoring round for a group of contaminants is one violation per contaminant and period. Category names are EPA's violation categories.

ECHO's own summary count of rules violated agrees with this grouping for 98.8% of active systems nationally, and its count of rules being violated for 98.7%; where they differ, the figures here follow the rows listed.

A measured value shown with a rule is the sample result EPA recorded with that violation (SDWIS viol_measure), against the limit EPA recorded on the same row (state_mcl), both in EPA's unit as written; violations without a recorded value, such as missed monitoring, show none. Other measured contaminant levels are not part of this record; each system publishes them in its annual Consumer Confidence Report.

Lead and copper are the newest 90th-percentile results in EPA's SDWA data download (LCR_SAMPLES, codes PB90 and CU90): for each monitoring period a system reports the 90th-percentile value of its tap samples, which EPA compares with its action level of 0.015 mg/L for lead and 1.3 mg/L for copper (40 CFR 141.80). A result is not a measurement of any one tap.

Service area from EPA's Public Water System Service Area Boundaries dataset: Decision Tree method, Federal agency. The system's location is the centre of the service area EPA publishes for the system.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Alaska records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.