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Great River Utility Operating Co LLC, Oak Park Subdivision

Subdividers And Developers, Vicksburg, Mississippi. NPDES permit MS0032972, in force until Aug 31, 2031. Last 12 months: over a limit 12 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
26 values over a limit, 0 required values missing, 0 of 4 reports late

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

Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, 20 deg. C, daily maximum34 mg/L≤ 15 mg/L127%
March 2026BOD, 5-day, 20 deg. C, maximum monthly average34 mg/L≤ 10 mg/L240%
March 2026Nitrogen, ammonia total [as N], daily maximum12.66 lb/d≤ 4.5 lb/d181%
March 2026Nitrogen, ammonia total [as N], daily maximum29.7 mg/L≤ 3 mg/L890%
March 2026Nitrogen, ammonia total [as N], maximum monthly average12.66 lb/d≤ 3 lb/d322%
March 2026Nitrogen, ammonia total [as N], maximum monthly average29.7 mg/L≤ 2 mg/L1385%
June 2026BOD, 5-day, 20 deg. C, daily maximum19 mg/L≤ 15 mg/L27%
June 2026BOD, 5-day, 20 deg. C, maximum monthly average19 mg/L≤ 10 mg/L90%
June 2026Nitrogen, ammonia total [as N], daily maximum11.22 lb/d≤ 4.5 lb/d149%
June 2026Nitrogen, ammonia total [as N], daily maximum25.4 mg/L≤ 3 mg/L747%
June 2026Nitrogen, ammonia total [as N], maximum monthly average11.22 lb/d≤ 3 lb/d274%
June 2026Nitrogen, ammonia total [as N], maximum monthly average25.4 mg/L≤ 2 mg/L1170%

Limits in force (27)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
Oxygen, dissolved [DO]minimumreport only (mg/L)all year
Oxygen, dissolved [DO]maximumreport only (mg/L)all year
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 average≤ 15 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 22.5 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendedmaximum monthly average≤ 45 lb/dall year
Solids, total suspendeddaily maximum≤ 67.5 lb/dall 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 average≤ 3 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 4.5 lb/dall year
Flow, in conduit or thru treatment plantmaximum monthly average≤ .18 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmaximum monthly average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colidaily maximum≤ 410 #/100mLall year
Sludge settleability 30 minuteminimumreport only (mL/L)all year
Sludge settleability 30 minutemaximumreport only (mL/L)all year

How strict are these limits?

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

Same industry: the 245 Real Estate permits in Mississippi.

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Your permit document is the final word. As JSON: /api/v1/permits/MS0032972 · MCP: https://passage-data.com/mcp