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Desoto County Regional Utility Authority, Short Fork WWTF

Sewage treatment plant, major discharger, Hernando, Mississippi. NPDES permit MS0062227, in force until Jun 30, 2030. Last 12 months: over a limit 8 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (57 values), form Q quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
82 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
May 2026Nitrogen, ammonia total [as N], monthly average328.27 lb/d≤ 267 lb/d23%
May 2026Nitrogen, ammonia total [as N], monthly average5.78 mg/L≤ 4 mg/L45%
May 2026Nitrogen, ammonia total [as N], maximum weekly average541.66 lb/d≤ 400 lb/d35%
May 2026Nitrogen, ammonia total [as N], maximum weekly average8.58 mg/L≤ 6 mg/L43%
June 2026E. coli, weekly maximum413 #/100mL≤ 410 #/100mL1%
June 2026Nitrogen, ammonia total [as N], monthly average4.8 mg/L≤ 4 mg/L20%
June 2026Nitrogen, ammonia total [as N], maximum weekly average506.9 lb/d≤ 400 lb/d27%
June 2026Nitrogen, ammonia total [as N], maximum weekly average8.37 mg/L≤ 6 mg/L40%

Limits in force (59)

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. Cmonthly average≤ 18 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 27 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 1202 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 1803 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
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≤ 2003 lb/dall year
Solids, total suspendedmaximum weekly average≤ 3005 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 averagereport only (lb/d)all year
Nitrogen, total [as N]maximum 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 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/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 6 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 267 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 400 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 averagereport only (lb/d)all year
Phosphorus, total [as P]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 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≤ 8 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .031 mg/Lall year
Chlorine, total residualmaximum weekly average≤ .053 mg/Lall year
E. colimonthly average≤ 126 #/100mLall year
E. coliweekly maximum≤ 410 #/100mLall year
BOD, 5-day, 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≥ 36.02 %all year
%Effect Static Renewal 7Day Chronic Pimephales promelasminimum≥ 36.02 %all year

New limits from Jun 30, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], monthly average240 lb/dtighter119.5 lb/d (12 values)0.498×
Nitrogen, ammonia total [as N], monthly average3.6 mg/Ltighter2.21 mg/L (12 values)0.614×
Nitrogen, ammonia total [as N], weekly maximum360 lb/dtighter——
Nitrogen, ammonia total [as N], weekly maximum5.4 mg/Ltighter——

How strict are these limits?

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

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/MS0062227 · MCP: https://passage-data.com/mcp