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Southwest Properties, LLC

Sewerage Systems, Nora, Virginia. NPDES permit VA0027421, in force until Feb 28, 2031. 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 (17 values), form A1 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 13 reports late

Limits in force (24)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ .6 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ .9 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all 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≤ .6 kg/dall year
Solids, total suspendedweekly average≤ .9 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 13 mg/LJun–Dec
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan–May
Nitrogen, ammonia total [as N]weekly average≤ 13 mg/LJun–Dec
Nitrogen, ammonia total [as N]weekly averagereport only (mg/L)Jan–May
Flow, in conduit or thru treatment plantmonthly average≤ .0053 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≤ .07 mg/Lall year
Chlorine, total residualmaximum≤ .09 mg/Lall year
Chlorine, total residualinstantaneous minimum≥ .6 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
E. coligeometric mean≤ 126 #/100mLall year
Solids, suspended percent removalmonthly average minimum≥ 85 %all 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/VA0027421 · MCP: https://passage-data.com/mcp