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Water Valley Potw

Sewage treatment plant, major discharger, Water Valley, Mississippi. NPDES permit MS0022331, in force until Jun 30, 2029. Last 12 months: over a limit 6 times (last December 2025), 217 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (37 values), form Q quarterly (16 values)
Last report on file
February 2026
Oct 2024 – Sep 2025
18 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, maximum weekly average41 mg/L≤ 39 mg/L5%
October 2025Solids, suspended percent removal, minimum48.08 %≥ 65 %48%
October 2025Solids, total suspended, monthly average140 mg/L≤ 90 mg/L56%
October 2025Solids, total suspended, maximum weekly average167 mg/L≤ 135 mg/L24%
November 2025BOD, 5-day, 20 deg. C, monthly average15 mg/L≤ 12 mg/L25%
December 2025Solids, suspended percent removal, minimum15.38 %≥ 65 %142%

Limits in force (61)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 12 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 26 mg/LMay–Oct
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 18 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 39 mg/LMay–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 140 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 304 lb/dMay–Oct
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 210 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 455 lb/dMay–Oct
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≤ 1050 lb/dall year
Solids, total suspendedmaximum weekly average≤ 1576 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
Oil & Greasemonthly average≤ 10 mg/Lall year
Oil & Greasemaximum weekly average≤ 15 mg/Lall year
Nitrogen, total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum monthly averagereport only (lb/d)all year
Nitrogen, total [as N]maximum weekly averagereport only (lb/d)all year
Nitrogen, total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum 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 average≤ 4 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 6 mg/LMay–Oct
Nitrogen, ammonia total [as N]maximum weekly average≤ 13.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 47 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 105 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 70 lb/dMay–Oct
Nitrogen, ammonia total [as N]maximum weekly average≤ 158 lb/dJan, Feb, Mar, Apr, Nov, Dec
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]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum weekly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum monthly averagereport only (lb/d)all year
Phosphorus, total [as P]maximum weekly averagereport only (lb/d)all year
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum weekly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum 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≤ 1.4 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .038 mg/Lall year
Chlorine, total residualmaximum weekly average≤ .065 mg/Lall year
E. colimonthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 410 #/100mLall year
BOD, 5-day, percent removalminimum≥ 65 %all year
Solids, suspended percent removalminimum≥ 65 %all year

How strict are these limits?

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/MS0022331 · MCP: https://passage-data.com/mcp