Allegheny Cnty Comm Coll — NPDES permit PA0092801: limits, due date and EPA's record

Junior Colleges, Pittsburgh, Pennsylvania. NPDES permit PA0092801 expired May 31, 2025; its limits still apply. Last 12 months: no values over a limit, 14 required values missing, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (20)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	instantaneous minimum	≥ 5 mg/L	all year
pH	instantaneous minimum	≥ 6 SU	all year
pH	instantaneous maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 25 mg/L	all year
Solids, total suspended	instantaneous maximum	≤ 50 mg/L	all year
Nitrogen, total [as N]	daily maximum	report only (mg/L)	all year
Nitrogen, ammonia total [as N]	monthly average	≤ 3 mg/L	May–Oct
Nitrogen, ammonia total [as N]	monthly average	≤ 9 mg/L	Jan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]	instantaneous maximum	≤ 6 mg/L	May–Oct
Nitrogen, ammonia total [as N]	instantaneous maximum	≤ 18 mg/L	Jan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]	daily maximum	report only (mg/L)	all year
Flow, in conduit or thru treatment plant	monthly average	≤ .015 MGD	all year
Chlorine, total residual	monthly average	≤ .5 mg/L	all year
Chlorine, total residual	instantaneous maximum	≤ 1.6 mg/L	all year
Coliform, fecal general	geometric mean	≤ 200 #/100mL	May–Sep
Coliform, fecal general	geometric mean	≤ 2000 #/100mL	Jan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal general	instantaneous maximum	≤ 1000 #/100mL	May–Sep
Coliform, fecal general	instantaneous maximum	≤ 10000 #/100mL	Jan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 10 mg/L	all year
BOD, carbonaceous [5 day, 20 C]	instantaneous maximum	≤ 20 mg/L	all year

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/PA0092801 · MCP: https://passage-data.com/mcp