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Australis Aquaculture, LLC

Fish Hatcheries And Preserves, Turners Falls, Massachusetts. NPDES permit MA0110264, in force until Aug 31, 2027. Last 12 months: over a limit 4 times (last August 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (30 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, daily maximum122 lb/d≤ 99 lb/d23%
October 2025Solids, total suspended, monthly average106.1 lb/d≤ 75 lb/d41%
June 2026Ozone - residual, daily average minimum.01 mg/L≥ .02 mg/L50%
August 2026Ozone - residual, daily average minimum.01 mg/L≥ .02 mg/L50%

Limits in force (30)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 100 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 200 lb/dall year
Ozone - residualmonthly average minimum≥ .02 mg/Lall year
Ozone - residualdaily average minimum≥ .02 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.3 SUall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 75 lb/dall year
Solids, total suspendeddaily maximum≤ 99 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]daily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .3 MGDall year
Flow, in conduit or thru treatment plantdaily maximum≤ .3 MGDall year
Chlorine, total residualmonthly average≤ 1 mg/Lall year
Chlorine, total residualdaily maximum≤ 1 mg/Lall year
Fish feed used efficiencymonthly averagereport only (%)all year

How strict are these limits?

Cited limits by parameter: Massachusetts'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

Your permit document is the final word. As JSON: /api/v1/permits/MA0110264 · MCP: https://passage-data.com/mcp