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Walk Robert D and Angela S

Sewerage Systems, Stafford, Virginia. NPDES permit VA0089630, in force until Sep 30, 2028. Last 12 months: no values over a limit, 71 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form Q1 quarterly (24 values), form A1 yearly
Renewal application due
Apr 3, 2028 · 180 days before expiry; your permit may set another date
Last report on file
None
Oct 2024 – Sep 2025
20 values over a limit, 0 required values missing, 0 of 6 reports late

Limits in force (30)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 6 mg/Lall year
Solids, total suspendedweekly average≤ 9 mg/Lall year
Solids, total suspendedmonthly average≤ .02 kg/dall year
Solids, total suspendedweekly average≤ .03 kg/dall year
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LApr–Oct
Nitrogen, ammonia total [as N]weekly average≤ 3.1 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ .003 kg/dApr–Oct
Nitrogen, ammonia total [as N]weekly average≤ .005 kg/dApr–Oct
Phosphorus, total [as P]monthly average≤ .18 mg/Lall year
Phosphorus, total [as P]weekly average≤ .27 mg/Lall year
Phosphorus, total [as P]monthly average≤ .0005 kg/dall year
Phosphorus, total [as P]weekly average≤ .0008 kg/dall year
Flow, in conduit or thru treatment plantmonthly average≤ .0008 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ .016 mg/Lall year
Chlorine, total residualweekly average≤ .016 mg/Lall year
Chlorine, total residualinstantaneous minimum≥ .6 mg/Lall year
E. colimaximum≤ 126 #/100mLJul
E. colimaximum≤ 126 #/100mLJul
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 8 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ .02 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ .03 kg/dall year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all 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/VA0089630 · MCP: https://passage-data.com/mcp