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Harbor Gate Co-Owners Council Inc

Apartment Building Operators, Anderson, South Carolina. NPDES permit SC0021849, in force until Aug 31, 2030. Last 12 months: over a limit 2 times (last October 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (25 values), form 2 quarterly (8 values), form 3 twice a year, form 4 every 60 months
Last report on file
September 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 19 reports late

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

Period endingParameterReportedLimit
October 2025E. coli, 30-day geometric mean> 49.2≤ 126 MPN/100mL
October 2025E. coli, daily maximum> 2419≤ 349 MPN/100mL

Limits in force (53)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 4.7 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 9.4 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≤ 9.4 lb/dall year
Solids, total suspendeddaily maximum≤ 18.8 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]daily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ .86 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 1.75 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 1.72 mg/LMar–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 3.5 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .27 lb/dMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ .55 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ .54 lb/dMar–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 1.09 lb/dJan, Feb, Nov, Dec
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≤ .00059 lb/dall year
Copper, total [as Cu]monthly average≤ .03412 mg/Lall year
Copper, total [as Cu]daily maximum≤ .05494 mg/Lall year
Copper, total [as Cu]monthly average≤ .01063 lb/dall year
Copper, total [as Cu]daily maximum≤ .01713 lb/dall year
Zinc, total [as Zn]monthly average≤ .1601 mg/Lall year
Zinc, total [as Zn]daily maximum≤ .1601 mg/Lall year
Zinc, total [as Zn]monthly average≤ .0501 lb/dall year
Zinc, total [as Zn]daily maximum≤ .0501 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≤ .0034 lb/dall year
Chlorine, total residualdaily maximum≤ .0059 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
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily minimumreport only (%)all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 40 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily minimumreport only (%)all 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/SC0021849 · MCP: https://passage-data.com/mcp