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

Vienna Power LLC

Electric Services, major discharger, Vienna, Maryland. NPDES permit MD0000094, in force until Mar 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (14 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (14)

ParameterStatisticLimitMonths
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 100 mg/Lall year
Oil & Greasemonthly average≤ 15 mg/Lall year
Oil & Greasedaily maximum≤ 20 mg/Lall year
Copper, total [as Cu]maximum monthly average≤ 9 ug/Lall year
Copper, total [as Cu]daily maximum≤ 13 ug/Lall year
Nickel, total [as Ni]monthly averagereport only (ug/L)all year
Nickel, total [as Ni]daily maximumreport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmaximum monthly average≤ 11 ug/Lall year
Chlorine, total residualdaily maximum≤ 19 ug/Lall year

How strict are these limits?

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

Same industry: the 8 Electric Services permits in Maryland.

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/MD0000094 · MCP: https://passage-data.com/mcp