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Institute for Marine Mammal Studies Inc, the Research & Rehabilitation Facility

Noncommercial Research Organizations, Gulfport, Mississippi. NPDES permit MS0060933, in force until Nov 30, 2027. Last 12 months: no values over a limit, 18 required values missing, 1 of 1 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Y yearly
Renewal application due
Jun 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
December 2025
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 1 report late

Limits in force (18)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendedmaximum monthly averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]maximum monthly average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]maximum monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year
Flow, in conduit or thru treatment plantmaximum monthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colidaily maximum≤ 410 #/100mLall year

How strict are these limits?

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

Same industry: the 3 Engineering, Accounting, Research and Management Services permits in Mississippi.

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/MS0060933 · MCP: https://passage-data.com/mcp