CARPENTER TECH CORP

NPDES permit PA0013129 · Major 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
77required values missing, on 8 form(s)
0of 99 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 (137)

OutfallParameterStatisticLimitMonths
004Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
004pHDAILY MN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
005pHDAILY MN >= 6 SU all year
005pHINST MAX <= 9 SU all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
011Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
011pHDAILY MN >= 6 SU all year
011pHINST MAX <= 9 SU all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
012Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
012pHDAILY MN >= 6 SU all year
012pHINST MAX <= 9 SU all year
012Flow, in conduit or thru treatment plantMO AVG report only all year
012Flow, in conduit or thru treatment plantDAILY MX report only all year
013Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
013pHDAILY MN >= 6 SU all year
013pHINST MAX <= 9 SU all year
013Flow, in conduit or thru treatment plantMO AVG report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
014Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
014pHDAILY MN >= 6 SU all year
014pHINST MAX <= 9 SU all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
015pHDAILY MX report only all year
015Solids, total suspendedDAILY MX report only all year
015Oil & GreaseDAILY MX report only all year
015Cadmium, total [as Cd]DAILY MX report only all year
015Chromium, hexavalent [as Cr]DAILY MX report only all year
015Copper, total [as Cu]DAILY MX report only all year
015Iron, total [as Fe]DAILY MX report only all year
015Lead, total [as Pb]DAILY MX report only all year
015Nickel, total [as Ni]DAILY MX report only all year
015Zinc, total [as Zn]DAILY MX report only all year
015Aluminum, total [as Al]DAILY MX report only all year
016pHDAILY MX report only all year
016Solids, total suspendedDAILY MX report only all year
016Oil & GreaseDAILY MX report only all year
016Cadmium, total [as Cd]DAILY MX report only all year
016Chromium, hexavalent [as Cr]DAILY MX report only all year
016Copper, total [as Cu]DAILY MX report only all year
016Iron, total [as Fe]DAILY MX report only all year
016Lead, total [as Pb]DAILY MX report only all year
016Nickel, total [as Ni]DAILY MX report only all year
016Zinc, total [as Zn]DAILY MX report only all year
016Aluminum, total [as Al]DAILY MX report only all year
017pHDAILY MX report only all year
017Solids, total suspendedDAILY MX report only all year
017Oil & GreaseDAILY MX report only all year
017Cadmium, total [as Cd]DAILY MX report only all year
017Chromium, hexavalent [as Cr]DAILY MX report only all year
017Copper, total [as Cu]DAILY MX report only all year
017Iron, total [as Fe]DAILY MX report only all year
017Lead, total [as Pb]DAILY MX report only all year
017Nickel, total [as Ni]DAILY MX report only all year
017Zinc, total [as Zn]DAILY MX report only all year
017Aluminum, total [as Al]DAILY MX report only all year
018PCBs Wet Weather AnalysisDAILY MX report only all year
901Temperature, water deg. fahrenheitMO AVG report only all year
901Temperature, water deg. fahrenheitDAILY MX report only all year
901pHDAILY MN >= 6 SU all year
901pHINST MAX <= 9 SU all year
901Solids, total suspendedMO AVG <= 30 mg/L all year
901Solids, total suspendedDAILY MX <= 60 mg/L all year
901Solids, total suspendedMO AVG <= 230 lb/d all year
901Solids, total suspendedDAILY MX <= 460 lb/d all year
901Oil & GreaseMO AVG <= 15 mg/L all year
901Oil & GreaseDAILY MX <= 30 mg/L all year
901Oil & GreaseMO AVG <= 115 lb/d all year
901Oil & GreaseDAILY MX <= 230 lb/d all year
901Nitrogen, total [as N]DAILY MX report only all year
901Nitrogen, total [as N]DAILY MX report only all year
901Nitrogen, ammonia total [as N]MO AVG <= 45 mg/L all year
901Nitrogen, ammonia total [as N]DAILY MX <= 90 mg/L all year
901Nitrogen, ammonia total [as N]MO AVG <= 345 lb/d all year
901Nitrogen, ammonia total [as N]DAILY MX <= 690 lb/d all year
901Nitrogen, nitrate total [as N]DAILY MX report only all year
901Nitrogen, nitrate total [as N]DAILY MX report only all year
901Cyanide, total [as CN]MO AVG <= .18 mg/L all year
901Cyanide, total [as CN]DAILY MX <= .35 mg/L all year
901Cyanide, total [as CN]MO AVG <= 1.38 lb/d all year
901Cyanide, total [as CN]DAILY MX <= 2.7 lb/d all year
901Cadmium, total [as Cd]DAILY MX <= .045 mg/L all year
901Cadmium, total [as Cd]DAILY MX <= .35 lb/d all year
901Chromium, hexavalent [as Cr]MO AVG <= .61 mg/L all year
901Chromium, hexavalent [as Cr]DAILY MX <= .94 mg/L all year
901Chromium, hexavalent [as Cr]MO AVG <= 4.6 lb/d all year
901Chromium, hexavalent [as Cr]DAILY MX <= 7.2 lb/d all year
901Chromium, total [as Cr]MO AVG report only all year
901Chromium, total [as Cr]DAILY MX report only all year
901Chromium, total [as Cr]MO AVG <= 5.3 lb/d all year
901Chromium, total [as Cr]DAILY MX <= 10.5 lb/d all year
901Copper, total [as Cu]MO AVG <= .5 mg/L all year
901Copper, total [as Cu]DAILY MX <= .82 mg/L all year
901Copper, total [as Cu]MO AVG <= 3.8 lb/d all year
901Copper, total [as Cu]DAILY MX <= 6.3 lb/d all year
901Lead, total [as Pb]DAILY MX <= .21 mg/L all year
901Lead, total [as Pb]DAILY MX <= 1.61 lb/d all year
901Nickel, total [as Ni]MO AVG report only all year
901Nickel, total [as Ni]DAILY MX report only all year
901Nickel, total [as Ni]MO AVG <= 6 lb/d all year
901Nickel, total [as Ni]DAILY MX <= 12.2 lb/d all year
901Silver, total [as Ag]DAILY MX <= .1 mg/L all year
901Silver, total [as Ag]DAILY MX <= .76 lb/d all year
901Zinc, total [as Zn]DAILY MX <= .66 mg/L all year
901Zinc, total [as Zn]DAILY MX <= 5 lb/d all year
901TetrachloroethyleneINST MAX report only all year
9011,1-DichloroethyleneINST MAX report only all year
9011,1,1-TrichloroethaneINST MAX report only all year
901NaphthaleneINST MAX report only all year
9011,2-DichloroetheneINST MAX report only all year
901TrichloroethyleneINST MAX report only all year
901Flow, in conduit or thru treatment plantMO AVG report only all year
901Flow, in conduit or thru treatment plantDAILY MX report only all year
901Perfluorooctanoic acid (PFOA)DAILY MX report only all year
901Perfluorooctanoic acid (PFOA)DAILY MX report only all year
901PerfluorooctanesulfonateDAILY MX report only all year
901PerfluorooctanesulfonateDAILY MX report only all year
901Perfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
901Perfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
901Hexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
901Hexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
901Solids, total dissolvedMO AVG report only all year
901Solids, total dissolvedMO AVG report only all year
901Organics, total toxic [TTO]DAILY MX <= .52 mg/L all year
901Organics, total toxic [TTO]DAILY MX <= 4 lb/d all year
902Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
902pHDAILY MN >= 6 SU all year
902pHINST MAX <= 9 SU all year
902Flow, in conduit or thru treatment plantMO AVG report only all year
902Flow, 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