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Metlakatla Indian Community

Water Supply, Metlakatla, Alaska. NPDES permit AK0046876 expired Nov 30, 2023; its limits still apply. Last 12 months: over a limit 2 times (last September 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (13 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
September 2026Solids, total suspended, monthly average20 lb/d≤ 15 lb/d33%
September 2026Solids, total suspended, monthly average41.4 mg/L≤ 30 mg/L38%

Limits in force (13)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Turbiditymonthly averagereport only (NTU)all year
Turbiditydaily maximumreport only (NTU)all year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 15 lb/dall year
Solids, total suspendeddaily maximum≤ 23 lb/dall year
Floating solids, waste or visible foam-visualmonthly maximum≤ 0 N=0;Y=1all year
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year

How strict are these limits?

Cited limits by parameter: Alaska's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

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