Passage Data · Check a report · Use it from your AI

Green Lake Natl Fish Hatchery

Federal facility (Fish Hatcheries And Preserves), Ellsworth, Maine. NPDES permit ME0002623, in force until Feb 28, 2030. Last 12 months: no values over a limit, 4 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (13 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (17)

ParameterStatisticLimitMonths
Solids, total suspendedmonthly average≤ 6 mg/Lall year
Solids, total suspendeddaily maximum≤ 10 mg/Lall year
Solids, total suspendedmonthly average≤ 665 lb/dall year
Solids, total suspendeddaily maximum≤ 1618 lb/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan–Nov
Phosphorus, total [as P]daily maximumreport only (mg/L)Jan–Nov
Phosphorus, total [as P]monthly averagereport only (lb/mo)Jan–Nov
Phosphorus, total [as P]daily maximum≤ 1780 lb/yrDec
Phosphorus, total [as P]year-to-date totalreport only (lb/yr)Jan–Nov
Phosphorus, total [as P]monthly averagereport only (mg/L)Dec
Phosphorus, total [as P]daily maximumreport only (mg/L)Dec
Phosphorus, total [as P]monthly averagereport only (lb/mo)Dec
Biomass, fishdaily maximumreport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly average≤ 13.3 MGDall year
Flow, in conduit or thru treatment plantdaily maximum≤ 19.4 MGDall year
Formalinmonthly averagereport only (lb/d)all year
Formalindaily maximum≤ 46 lb/dall year

How strict are these limits?

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

Same industry: the 17 Fishing, Hunting and Trapping permits in Maine.

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ME0002623 · MCP: https://passage-data.com/mcp