MACDONALD & OWEN LLC

NPDES permit PA0221686 · Minor NON-POTW · effective, expires 2031-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 10 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among PA permits in EPA's filings — check your permit).

Limits in force (80)

OutfallParameterStatisticLimitMonths
002Oxygen demand, chem. [high level] [COD]SEMI AVG report only all year
002pHINST MIN report only all year
002pHINST MAX report only all year
002Solids, total suspendedSEMI AVG report only all year
002Oil & GreaseSEMI AVG <= 15 mg/L all year
002Oil & GreaseINST MAX <= 30 mg/L all year
002Nitrogen, total [as N]SEMI AVG report only all year
002Phosphorus, total [as P]SEMI AVG report only all year
002Arsenic, total [as As]SEMI AVG report only all year
002Chromium, total [as Cr]SEMI AVG report only all year
002Copper, total [as Cu]SEMI AVG report only all year
002Iron, total [as Fe]SEMI AVG report only all year
002Manganese, total [as Mn]SEMI AVG report only all year
002Aluminum, total [as Al]SEMI AVG report only all year
002PentachlorophenolSEMI AVG report only all year
002Flow, in conduit or thru treatment plantSEMI AVG report only all year
004Oxygen demand, chem. [high level] [COD]SEMI AVG report only all year
004pHINST MIN report only all year
004pHINST MAX report only all year
004Solids, total suspendedSEMI AVG report only all year
004Oil & GreaseSEMI AVG <= 15 mg/L all year
004Oil & GreaseINST MAX <= 30 mg/L all year
004Nitrogen, total [as N]SEMI AVG report only all year
004Phosphorus, total [as P]SEMI AVG report only all year
004Arsenic, total [as As]SEMI AVG report only all year
004Chromium, total [as Cr]SEMI AVG report only all year
004Copper, total [as Cu]SEMI AVG report only all year
004Iron, total [as Fe]SEMI AVG report only all year
004Manganese, total [as Mn]SEMI AVG report only all year
004Aluminum, total [as Al]SEMI AVG report only all year
004PentachlorophenolSEMI AVG report only all year
004Flow, in conduit or thru treatment plantSEMI AVG report only all year
006Oxygen demand, chem. [high level] [COD]SEMI AVG report only all year
006pHINST MIN report only all year
006pHINST MAX report only all year
006Solids, total suspendedSEMI AVG report only all year
006Oil & GreaseSEMI AVG <= 15 mg/L all year
006Oil & GreaseINST MAX <= 30 mg/L all year
006Nitrogen, total [as N]SEMI AVG report only all year
006Phosphorus, total [as P]SEMI AVG report only all year
006Arsenic, total [as As]SEMI AVG report only all year
006Chromium, total [as Cr]SEMI AVG report only all year
006Copper, total [as Cu]SEMI AVG report only all year
006Iron, total [as Fe]SEMI AVG report only all year
006Manganese, total [as Mn]SEMI AVG report only all year
006Aluminum, total [as Al]SEMI AVG report only all year
006PentachlorophenolSEMI AVG report only all year
006Flow, in conduit or thru treatment plantSEMI AVG report only all year
007Oxygen demand, chem. [high level] [COD]SEMI AVG report only all year
007pHINST MIN report only all year
007pHINST MAX report only all year
007Solids, total suspendedSEMI AVG report only all year
007Oil & GreaseSEMI AVG <= 15 mg/L all year
007Oil & GreaseINST MAX <= 30 mg/L all year
007Nitrogen, total [as N]SEMI AVG report only all year
007Phosphorus, total [as P]SEMI AVG report only all year
007Arsenic, total [as As]SEMI AVG report only all year
007Chromium, total [as Cr]SEMI AVG report only all year
007Copper, total [as Cu]SEMI AVG report only all year
007Iron, total [as Fe]SEMI AVG report only all year
007Manganese, total [as Mn]SEMI AVG report only all year
007Aluminum, total [as Al]SEMI AVG report only all year
007PentachlorophenolSEMI AVG report only all year
007Flow, in conduit or thru treatment plantSEMI AVG report only all year
008Oxygen demand, chem. [high level] [COD]SEMI AVG report only all year
008pHINST MIN report only all year
008pHINST MAX report only all year
008Solids, total suspendedSEMI AVG report only all year
008Oil & GreaseSEMI AVG <= 15 mg/L all year
008Oil & GreaseINST MAX <= 30 mg/L all year
008Nitrogen, total [as N]SEMI AVG report only all year
008Phosphorus, total [as P]SEMI AVG report only all year
008Arsenic, total [as As]SEMI AVG report only all year
008Chromium, total [as Cr]SEMI AVG report only all year
008Copper, total [as Cu]SEMI AVG report only all year
008Iron, total [as Fe]SEMI AVG report only all year
008Manganese, total [as Mn]SEMI AVG report only all year
008Aluminum, total [as Al]SEMI AVG report only all year
008PentachlorophenolSEMI AVG report only all year
008Flow, in conduit or thru treatment plantSEMI AVG report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states