OLD DOMINION FREIGHT LINE INC

NPDES permit PAS806111 · Minor NON-POTW · effective, expires 2029-10-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

1values over a limit
0required values missing, on 0 form(s)
0of 8 forms filed late

Last period with anything received: 2026-06-30. Most often over: Aluminum, total [as Al] (1).

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 (24)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY MX <= 10 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 30 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX <= 1 mg/L all year
001Iron, total [as Fe]DAILY MX <= 3 mg/L all year
001Manganese, total [as Mn]DAILY MX <= 1 mg/L all year
001Aluminum, total [as Al]DAILY MX <= .75 mg/L all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002BOD, 5-day, 20 deg. CDAILY MX <= 10 mg/L all year
002Oxygen demand, chem. [high level] [COD]DAILY MX <= 30 mg/L all year
002pHDAILY MN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Oil & GreaseDAILY MX <= 5 mg/L all year
002Nitrogen, total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX <= 1 mg/L all year
002Iron, total [as Fe]DAILY MX <= 3 mg/L all year
002Manganese, total [as Mn]DAILY MX <= 1 mg/L all year
002Aluminum, total [as Al]DAILY MX <= .75 mg/L all year
002Flow, in conduit or thru treatment plantDAILY MX 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