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Middleton Inn Company

Hotels And Motels, Charleston, South Carolina. NPDES permit SC0039063, in force until Sep 30, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Last report on file
September 2026
Oct 2024 – Sep 2025
25 values over a limit, 0 required values missing, 3 of 12 reports late

Limits in force (29)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 14 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 28 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 2 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 3 lb/dall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 60 mg/Lall year
Solids, total suspendedmonthly average≤ 4 lb/dall year
Solids, total suspendeddaily maximum≤ 7 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ .8 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 1.6 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ .09 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ .19 lb/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .1 mg/Lall year
Chlorine, total residualdaily maximum≤ .2 mg/Lall year
Chlorine, total residualmonthly average≤ .012 lb/dall year
Chlorine, total residualdaily maximum≤ .023 lb/dall year
Enterococci30-day geometric mean≤ 35 MPN/100mLall year
Enterococcidaily maximum≤ 104 MPN/100mLall year
Enterococci30-day geometric mean≤ 35 MPN/100mLall year
Enterococcidaily maximum≤ 800 MPN/100mLall year

How strict are these limits?

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

Same industry: the 4 Hotels, Rooming Houses, Camps and Other Lodging permits in South Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0039063 · MCP: https://passage-data.com/mcp