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South Central Wastewater Authority

Sewerage Systems, major discharger, Petersburg, Virginia. NPDES permit VA0025437, in force until Jul 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (22 values), form Q1 quarterly (6 values), form A1 yearly, form S1 twice a year
Renewal application due
Feb 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 19 reports late

Limits in force (41)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 2600 kg/dall year
Solids, total suspendedweekly average≤ 3900 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 5.07 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3.28 mg/LJun–Oct
Nitrogen, ammonia total [as N]weekly average≤ 6.42 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 4.16 mg/LJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 444 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 287 kg/dJun–Oct
Nitrogen, ammonia total [as N]weekly average≤ 557 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 366 kg/dJun–Oct
Phosphorus, total [as P]monthly average≤ 2 mg/Lall year
Sulfide, dissolved, [as S]monthly averagereport only (mg/L)all year
Sulfide, dissolved, [as S]weekly averagereport only (mg/L)all year
Hardness, total [as CaCO3]maximumreport only (mg/L)all year
Copper, dissolved [as Cu]monthly averagereport only (ug/L)all year
Copper, dissolved [as Cu]weekly averagereport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 23 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ 16 ug/Lall year
Chlorine, total residualweekly average≤ 17 ug/Lall year
Chlorine, total residualinstantaneous minimum≥ .6 mg/Lall year
E. coligeometric mean≤ 126 #/100mLall year
Nitrogen, Total As Nmonthly averagereport only (mg/L)all year
Phosphorus, Total As Pmonthly averagereport only (mg/L)all year
Hydrogen sulfidemonthly averagereport only (mg/L)all year
Hydrogen sulfideweekly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1271 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1906 kg/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
TU Static Renewal 7-Day Chronic Pimphales promelasdaily maximum≤ 3.8 tox chronicall year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0025437 · MCP: https://passage-data.com/mcp