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Ridem/Div. of Fish and Wildlife

Fish Hatcheries And Preserves, Perryville, Rhode Island. NPDES permit RI0110019 expired Apr 30, 2008; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A quarterly (19 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (19)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximum≤ 68 deg Fall year
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
Oxygen, dissolved [DO]minimum average≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 10 mg/Lall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 5 mg/Lall year
Solids, total suspendeddaily maximum≤ 10 mg/Lall year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.368 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 4.496 mg/Lall year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 1 MGDall year
Chlorine, total residualmonthly average≤ 11 ug/Lall year
Chlorine, total residualdaily maximum≤ 19 ug/Lall year
Formaldehydemonthly average≤ .59 mg/Lall year
Formaldehydedaily maximum≤ 5.62 mg/Lall year
pH change [range]daily maximumreport only (SU)all year

How strict are these limits?

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

Same industry: the 3 Fishing, Hunting and Trapping permits in Rhode Island.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/RI0110019 · MCP: https://passage-data.com/mcp