Passage Data · Check a report · Use it from your AI

Powhatan County

Sewage treatment plant, Powhatan, Virginia. NPDES permit VA0089206, in force until Nov 30, 2026. Last 12 months: over a limit 29 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (23 values), form S1 twice a year
Renewal application due
Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 14 reports late

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

All 29 values over a limit
Period endingParameterReportedLimitOver by
October 2025Copper, total recoverable, monthly average18≤ 12 ug/L50%
October 2025Copper, total recoverable, maximum weekly average23≤ 12 ug/L92%
December 2025Copper, total recoverable, monthly average28≤ 12 ug/L133%
December 2025Copper, total recoverable, maximum weekly average34≤ 12 ug/L183%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average17≤ 10 mg/L70%
January 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average35≤ 15 mg/L133%
January 2026Copper, total recoverable, monthly average24≤ 12 ug/L100%
January 2026Copper, total recoverable, maximum weekly average30≤ 12 ug/L150%
January 2026Solids, total suspended, monthly average22≤ 20 mg/L10%
January 2026Solids, total suspended, maximum weekly average39≤ 30 mg/L30%
January 2026Zinc, total recoverable, maximum weekly average121≤ 100 ug/L21%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average14≤ 10 mg/L40%
February 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average22≤ 15 mg/L47%
February 2026Copper, total recoverable, monthly average15≤ 12 ug/L25%
February 2026Copper, total recoverable, maximum weekly average23≤ 12 ug/L92%
February 2026Nitrogen, ammonia total [as N], monthly average11.74≤ .85 mg/L1281%
February 2026Nitrogen, ammonia total [as N], weekly average25.7≤ 1.2 mg/L2042%
March 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average18≤ 15 mg/L20%
March 2026Nitrogen, ammonia total [as N], monthly average34.5≤ .85 mg/L3959%
March 2026Nitrogen, ammonia total [as N], weekly average41.1≤ 1.2 mg/L3325%
April 2026Nitrogen, ammonia total [as N], monthly average.9≤ .85 mg/L6%
April 2026Nitrogen, ammonia total [as N], weekly average2.46≤ 1.2 mg/L105%
April 2026Solids, total suspended, maximum weekly average70≤ 30 mg/L133%
May 2026Copper, total recoverable, maximum weekly average17≤ 12 ug/L42%
June 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum72≥ 85 %87%
June 2026Solids, suspended percent removal, monthly average minimum82≥ 85 %20%
July 2026Copper, total recoverable, monthly average14≤ 12 ug/L17%
July 2026Copper, total recoverable, maximum weekly average14≤ 12 ug/L17%
August 2026Copper, total recoverable, maximum weekly average13≤ 12 ug/L8%

Limits in force (32)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 7.6 kg/dall year
Solids, total suspendedmaximum weekly average≤ 11 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ .85 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .62 mg/LJun–Oct
Nitrogen, ammonia total [as N]weekly average≤ 1.2 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ .9 mg/LJun–Oct
Hardness, total [as CaCO3]maximumreport only (mg/L)all year
Nickel, total recoverablemonthly average≤ 31 ug/Lall year
Nickel, total recoverablemaximum weekly average≤ 31 ug/Lall year
Zinc, total recoverablemonthly average≤ 100 ug/Lall year
Zinc, total recoverablemaximum weekly average≤ 100 ug/Lall year
Copper, total recoverablemonthly average≤ 12 ug/Lall year
Copper, total recoverablemaximum weekly average≤ 12 ug/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ .1 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year
E. coligeometric mean≤ 126 #/100mLall year
E. colimaximumreport only (#/100mL)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 3.8 kg/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 5.7 kg/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly 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

How strict are these limits?

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

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0089206 · MCP: https://passage-data.com/mcp