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VDOC - Central Region

Correctional Institutions, major discharger, Mitchells, Virginia. NPDES permit VA0087718, in force until Sep 30, 2031. Last 12 months: over a limit once (last January 2026), 3 required values missing, 7 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 6 of 28 reports late

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

Period endingParameterReportedLimitOver by
January 2026Flow, in conduit or thru treatment plant, monthly average.079≤ .07 MGD13%

Limits in force (30)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 13 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 20 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 9.8 kg/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 15 kg/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspendedweekly average≤ 15 mg/Lall year001
Solids, total suspendedmonthly average≤ 7.6 kg/dall year001
Solids, total suspendedweekly average≤ 11 kg/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 1.9 mg/Lall year001
Hardness, total [as CaCO3]maximumreport only (mg/L)all year001
Zinc, total recoverableweekly average≤ 79 ug/Lall year001
Copper, total recoverableweekly average≤ 12 ug/Lall year001
Flow, in conduit or thru treatment plantweekly average≤ .2 MGDall year001
Flow, in conduit or thru treatment plantmaximumreport only (MGD)all year001
BOD, percent removal [total]monthly average minimum≥ 85 %all year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Flow, in conduit or thru treatment plantmonthly average≤ .07 MGDall year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Solids, total dissolvedmaximum≤ 5000 mg/Lall year002
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiamaximum≤ 1.95 tox chronicall year002
TU Static Renewal 7-Day Chronic Pimphales promelasmaximum≤ 1.95 tox chronicall year002

How strict are these limits?

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

Same industry: the 9 Justice, Public Order and Safety permits in Virginia.

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Your permit document is the final word. As JSON: /api/v1/permits/VA0087718 · MCP: https://passage-data.com/mcp