DUQUESNE LIGHT CO

NPDES permit PA0285056 · Minor NON-POTW · effective, expires 2029-05-31 · 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
22required values missing, on 1 form(s)
0of 11 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 (26)

OutfallParameterStatisticLimitMonths
001pHINST MIN report only all year
001pHINST MAX report only all year
001Arsenic, total [as As]MO AVG report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Boron, total [as B]MO AVG report only all year
001Boron, total [as B]DAILY MX report only all year
001Chromium, hexavalent [as Cr]MO AVG report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Iron, total [as Fe]MO AVG report only all year
001Iron, total [as Fe]DAILY MX report only all year
001Iron, dissolved [as Fe]MO AVG report only all year
001Iron, dissolved [as Fe]DAILY MX report only all year
001Lead, total [as Pb]MO AVG report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Manganese, total [as Mn]MO AVG report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Selenium, total [as Se]MO AVG report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Perfluorooctanoic acid (PFOA)DAILY MX report only all year
001PerfluorooctanesulfonateDAILY MX report only all year
001Perfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
001Hexafluoropropylene oxide dimer acid (HFPO-DA)DAILY 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