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Belzoni Potw

Sewage treatment plant, major discharger, Belzoni, Mississippi. NPDES permit MS0020371, in force until May 31, 2030. Last 12 months: over a limit 25 times (last September 2026), 52 required values missing, 5 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (44 values), form Q quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
20 values over a limit, 90 required values missing, 7 of 15 reports late

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

All 25 values over a limit
Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, percent removal, minimum64 %≥ 65 %3%
December 2025Solids, total suspended, monthly average117 mg/L≤ 90 mg/L30%
February 2026E. coli, monthly average272 #/100mL≤ 126 #/100mL116%
March 2026Oxygen, dissolved [DO], minimum3.43 mg/L≥ 6 mg/L43%
April 2026BOD, 5-day, 20 deg. C, monthly average55 mg/L≤ 45 mg/L22%
April 2026BOD, 5-day, percent removal, minimum55.65 %≥ 65 %27%
April 2026Oxygen, dissolved [DO], minimum5.05 mg/L≥ 6 mg/L16%
April 2026Solids, total suspended, monthly average192 mg/L≤ 90 mg/L113%
April 2026Solids, total suspended, maximum weekly average192 mg/L≤ 135 mg/L42%
April 2026pH, maximum9.43 SU≤ 9 SU—
May 2026BOD, 5-day, 20 deg. C, monthly average70 mg/L≤ 45 mg/L56%
May 2026BOD, 5-day, 20 deg. C, maximum weekly average70 mg/L≤ 65 mg/L8%
May 2026BOD, 5-day, percent removal, minimum0 %≥ 65 %186%
May 2026Solids, total suspended, monthly average220 mg/L≤ 90 mg/L144%
May 2026Solids, total suspended, maximum weekly average220 mg/L≤ 135 mg/L63%
June 2026BOD, 5-day, 20 deg. C, monthly average50 mg/L≤ 45 mg/L11%
June 2026BOD, 5-day, percent removal, minimum37.5 %≥ 65 %79%
June 2026Solids, total suspended, monthly average136 mg/L≤ 90 mg/L51%
June 2026Solids, total suspended, maximum weekly average136 mg/L≤ 135 mg/L1%
July 2026BOD, 5-day, percent removal, minimum63.33 %≥ 65 %5%
July 2026pH, maximum9.66 SU≤ 9 SU—
August 2026Oxygen, dissolved [DO], minimum4.15 mg/L≥ 6 mg/L31%
September 2026Solids, total suspended, monthly average296 mg/L≤ 90 mg/L229%
September 2026Solids, total suspended, maximum weekly average296 mg/L≤ 135 mg/L119%
September 2026pH, maximum9.25 SU≤ 9 SU—

Limits in force (48)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 488 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 705 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 135 mg/Lall year
Solids, total suspendedmonthly average≤ 976 lb/dall year
Solids, total suspendedmaximum weekly average≤ 1464 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspendedmaximum weekly averagereport only (lb/d)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly average≤ 124.8 lb/dall year
Nitrogen, total [as N]maximum weekly average≤ 187.2 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]maximum weekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]maximum weekly averagereport only (lb/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 56.4 lb/dall year
Phosphorus, total [as P]maximum weekly average≤ 84.6 lb/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]maximum weekly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly average≤ 1.3 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Chlorine, total residualmonthly averagereport only (mg/L)all year
Chlorine, total residualmaximum weekly average≤ 1 mg/Lall year
E. colimonthly average≤ 126 #/100mLJan, Feb, Mar, Apr, Nov, Dec
E. colimaximum weekly average≤ 410 #/100mLJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, percent removalminimum≥ 65 %all year
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiaminimum≥ .19 %all year
%Effect Static Renewal 96Hr Acute Pimephales promelasminimum≥ .19 %all year

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MS0020371 · MCP: https://passage-data.com/mcp