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Central Hinds Academy

Elementary And Secondary Schools, Raymond, Mississippi. NPDES permit MS0030015, in force until Oct 31, 2027. Last 12 months: over a limit 2 times (last December 2025), 29 required values missing, 1 of 1 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form Y yearly
Renewal application due
May 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
December 2025
Oct 2024 – Sep 2025
4 values over a limit, 29 required values missing, 1 of 1 report late

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

Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, maximum monthly average16 mg/L≤ 15 mg/L7%
December 2025BOD, 5-day, 20 deg. C, maximum monthly average16 mg/L≤ 15 mg/L7%

Limits in force (29)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 22.5 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 1.75 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 2.62 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 90 mg/Lall year
Solids, total suspendeddaily maximum≤ 90 mg/Lall year
Solids, total suspendedmaximum monthly average≤ 10.5 lb/dall year
Solids, total suspendeddaily maximum≤ 10.5 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 average≤ 1.34 lb/dall year
Nitrogen, total [as N]daily maximum≤ 2.01 lb/dall 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≤ .233 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ .35 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 average≤ .61 lb/dall year
Phosphorus, total [as P]daily maximum≤ .915 lb/dall year
Flow, in conduit or thru treatment plantmaximum monthly average≤ .014 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualminimum≥ .1 mg/Lall year
Chlorine, total residualmaximum≤ 1 mg/Lall year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colidaily maximum≤ 410 #/100mLall year

New limits from Oct 30, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], daily maximum2.1 mg/Ltighter——
Nitrogen, ammonia total [as N], daily maximum0.24 lb/dtighter——
Nitrogen, ammonia total [as N], maximum monthly average1.37 mg/Ltighter——
Nitrogen, ammonia total [as N], maximum monthly average0.16 lb/dtighter——

How strict are these limits?

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

Same industry: the 103 Educational Services permits in Mississippi.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MS0030015 · MCP: https://passage-data.com/mcp