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Blue Granite Water Company

Dwelling Operators, Except Apartments, Fort Mill, South Carolina. NPDES permit SC0038113 expired Aug 31, 2022; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (29 values), form 2 quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

Limits in force (49)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 5 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 10 lb/dall year
pHminimum≥ 6 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≤ 5 lb/dall year
Solids, total suspendeddaily maximum≤ 10 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LMar–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 2.6 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ .3 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .2 lb/dMar–Oct
Nitrogen, ammonia total [as N]daily maximum≤ .6 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ .4 lb/dMar–Oct
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
Cadmium, total [as Cd]monthly average≤ .0003 mg/Lall year
Cadmium, total [as Cd]daily maximum≤ .0019 mg/Lall year
Cadmium, total [as Cd]monthly average≤ .0001 lb/dall year
Cadmium, total [as Cd]daily maximum≤ .0003 lb/dall year
Copper, total [as Cu]monthly average≤ .1313 mg/Lall year
Copper, total [as Cu]daily maximum≤ .2116 mg/Lall year
Copper, total [as Cu]monthly average≤ .219 lb/dall year
Copper, total [as Cu]daily maximum≤ .0353 lb/dall year
Lead, total [as Pb]monthly average≤ .003 mg/Lall year
Lead, total [as Pb]daily maximum≤ .083 mg/Lall year
Lead, total [as Pb]monthly average≤ .0005 lb/dall year
Lead, total [as Pb]daily maximum≤ .014 lb/dall year
Zinc, total [as Zn]monthly average≤ .16 mg/Lall year
Zinc, total [as Zn]daily maximum≤ .16 mg/Lall year
Zinc, total [as Zn]monthly average≤ .027 lb/dall year
Zinc, total [as Zn]daily maximum≤ .027 lb/dall 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≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chlorine, total residualmonthly average≤ .002 lb/dall year
Chlorine, total residualdaily maximum≤ .003 lb/dall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily maximum≤ 349 MPN/100mLall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily 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 27 Real Estate 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/SC0038113 · MCP: https://passage-data.com/mcp