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Mdot I-55 S, Rest Area, Panola

Transportation Services, Batesville, Mississippi. NPDES permit MS0028878, in force until Oct 31, 2029. Last 12 months: over a limit 10 times (last December 2025), 1 of 1 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Y yearly
Last report on file
December 2025
Oct 2024 – Sep 2025
15 values over a limit, 0 required values missing, 1 of 1 report late

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

Period endingParameterReportedLimitOver by
December 2025E. coli, daily maximum> 2420 #/100mL≤ 410 #/100mL—
December 2025E. coli, maximum monthly average1210 #/100mL≤ 126 #/100mL860%
December 2025Nitrogen, ammonia total [as N], daily maximum1.56 lb/d≤ .25 lb/d524%
December 2025Nitrogen, ammonia total [as N], daily maximum18.8 mg/L≤ 3 mg/L527%
December 2025Nitrogen, ammonia total [as N], maximum monthly average.78 lb/d≤ .17 lb/d359%
December 2025Nitrogen, ammonia total [as N], maximum monthly average9.4 mg/L≤ 2 mg/L370%
December 2025Oxygen, dissolved [DO], minimum1.8 mg/L≥ 6 mg/L70%
December 2025Solids, total suspended, daily maximum4.67 lb/d≤ 3.75 lb/d25%
December 2025Solids, total suspended, daily maximum56 mg/L≤ 45 mg/L24%
December 2025pH, minimum5.5 SU≥ 6 SU—

Limits in force (35)

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≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 2.5 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 3.75 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≤ 2.5 lb/dall year
Solids, total suspendeddaily maximum≤ 3.75 lb/dall year
Nitrogen, total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]maximum monthly averagereport only (lb/d)all year
Nitrogen, total [as N]daily maximumreport only (lb/d)all 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≤ .17 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ .25 lb/dall year
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]maximum monthly averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Flow, in conduit or thru treatment plantmaximum monthly average≤ .01 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmaximum monthly average≤ .935 mg/Lall year
Chlorine, total residualmaximum≤ 1 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 5 Transportation Services permits in Mississippi.

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Your permit document is the final word. As JSON: /api/v1/permits/MS0028878 · MCP: https://passage-data.com/mcp