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Dcrua, Olive Branch Potw Ross Road

Sewage treatment plant, major discharger, Olive Branch, Mississippi. NPDES permit MS0029513, in force until Jul 31, 2031. Last 12 months: over a limit 29 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (61 values), form Q quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

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

All 29 values over a limit
Period endingParameterReportedLimitOver by
November 2025BOD, carbonaceous [5 day, 20 C], monthly average9.2 mg/L≤ 5 mg/L84%
November 2025BOD, carbonaceous [5 day, 20 C], maximum weekly average20.33 mg/L≤ 7.5 mg/L171%
November 2025E. coli, monthly average760.7 #/100mL≤ 126 #/100mL504%
November 2025E. coli, maximum weekly average1216.6 #/100mL≤ 410 #/100mL197%
November 2025Nitrogen, ammonia total [as N], monthly average6.45 mg/L≤ 1 mg/L545%
November 2025Nitrogen, ammonia total [as N], monthly average62.87 lb/d≤ 25 lb/d151%
November 2025Nitrogen, ammonia total [as N], maximum weekly average12.23 mg/L≤ 1.5 mg/L715%
November 2025Nitrogen, ammonia total [as N], maximum weekly average93.34 lb/d≤ 38 lb/d146%
December 2025Nitrogen, ammonia total [as N], monthly average1.19 mg/L≤ 1 mg/L19%
December 2025Nitrogen, ammonia total [as N], maximum weekly average3.37 mg/L≤ 1.5 mg/L125%
December 2025Nitrogen, ammonia total [as N], maximum weekly average42.91 lb/d≤ 38 lb/d13%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average11.42 mg/L≤ 5 mg/L128%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average130.89 lb/d≤ 125 lb/d5%
January 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average41.33 mg/L≤ 7.5 mg/L451%
January 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average469.79 lb/d≤ 188 lb/d150%
January 2026E. coli, maximum weekly average1482.8 #/100mL≤ 410 #/100mL262%
January 2026Nitrogen, ammonia total [as N], monthly average1.45 mg/L≤ 1 mg/L45%
January 2026Nitrogen, ammonia total [as N], maximum weekly average3.99 mg/L≤ 1.5 mg/L166%
January 2026Nitrogen, ammonia total [as N], maximum weekly average48.11 lb/d≤ 38 lb/d27%
March 2026%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia, minimum41.25 % effect≥ 100 % effect59%
March 2026%Effect Static Renewal 7Day Chronic Pimephales promelas, minimum50.86 %≥ 100 %49%
May 2026Copper, total recoverable, monthly average.012 mg/L≤ .011 mg/L9%
May 2026Copper, total recoverable, maximum weekly average.017 mg/L≤ .015 mg/L13%
May 2026Nitrogen, ammonia total [as N], monthly average1.02 mg/L≤ 1 mg/L2%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average8.33 mg/L≤ 7.5 mg/L11%
June 2026Nitrogen, ammonia total [as N], monthly average1.55 mg/L≤ 1 mg/L55%
June 2026Nitrogen, ammonia total [as N], maximum weekly average2.95 mg/L≤ 1.5 mg/L97%
July 2026Nitrogen, ammonia total [as N], monthly average1.25 mg/L≤ 1 mg/L25%
July 2026Nitrogen, ammonia total [as N], maximum weekly average2.5 mg/L≤ 1.5 mg/L67%

Limits in force (63)

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
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 751 lb/dall year
Solids, total suspendedmaximum weekly average≤ 1126 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≤ 287.93 lb/dall year
Nitrogen, total [as N]maximum weekly average≤ 432 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 average≤ 1 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.5 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 38 lb/dall 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≤ 42.82 lb/dall year
Phosphorus, total [as P]maximum weekly average≤ 64.23 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
Zinc, total recoverablemonthly average≤ .136 mg/Lall year
Zinc, total recoverablemaximum weekly average≤ .136 mg/Lall year
Copper, total recoverablemonthly average≤ .011 mg/Lall year
Copper, total recoverablemaximum weekly average≤ .015 mg/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ 3 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .011 mg/Lall year
Chlorine, total residualmaximum weekly average≤ .019 mg/Lall year
E. colimonthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 410 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 7.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 125 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 188 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]maximum weekly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year
BOD, carbonaceous [5 day, 20 C]maximum weekly averagereport only (lb/d)all year
BOD, carb-5 day, 20 deg C, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year
Sludge settleability 30 minuteminimumreport only (mL/L)all year
Sludge settleability 30 minutemaximumreport only (mL/L)all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 100 % effectall year
%Effect Static Renewal 7Day Chronic Pimephales promelasminimum≥ 100 %all year

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/MS0029513 · MCP: https://passage-data.com/mcp