HARWICK OPER CO LLC

NPDES permit PA0255777 · Minor NON-POTW · effective, expires 2029-12-31 · 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

59values over a limit
0required values missing, on 0 form(s)
8of 40 forms filed late

Last period with anything received: 2026-06-30. Most often over: Aluminum, total [as Al] (19), Iron, total [as Fe] (15), Manganese, total [as Mn] (11).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (90)

OutfallParameterStatisticLimitMonths
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedMO AVG <= 35 mg/L all year
002Solids, total suspendedDAILY MX <= 70 mg/L all year
002Chloride [as Cl]MO AVG report only all year
002Chloride [as Cl]DAILY MX report only all year
002Chloride [as Cl]MO AVG report only all year
002Chloride [as Cl]DAILY MX report only all year
002Sulfate, total [as SO4]MO AVG report only all year
002Sulfate, total [as SO4]DAILY MX report only all year
002Sulfate, total [as SO4]MO AVG report only all year
002Sulfate, total [as SO4]DAILY MX report only all year
002Beryllium, total [as Be]MO AVG <= .01 mg/L all year
002Beryllium, total [as Be]DAILY MX <= .02 mg/L all year
002Boron, total [as B]MO AVG report only all year
002Boron, total [as B]DAILY MX report only all year
002Cadmium, total [as Cd]MO AVG <= .0003 mg/L all year
002Cadmium, total [as Cd]DAILY MX <= .0006 mg/L all year
002Chromium, hexavalent [as Cr]MO AVG <= .006 mg/L all year
002Chromium, hexavalent [as Cr]DAILY MX <= .012 mg/L all year
002Copper, total [as Cu]MO AVG <= .009 mg/L all year
002Copper, total [as Cu]DAILY MX <= .018 mg/L all year
002Iron, total [as Fe]MO AVG <= 1.5 mg/L all year
002Iron, total [as Fe]DAILY MX <= 3 mg/L all year
002Iron, total [as Fe]MO AVG report only all year
002Iron, total [as Fe]DAILY MX report only all year
002Iron, dissolved [as Fe]MO AVG report only all year
002Iron, dissolved [as Fe]DAILY MX report only all year
002Manganese, total [as Mn]MO AVG <= 1 mg/L all year
002Manganese, total [as Mn]DAILY MX <= 1.663 mg/L all year
002Manganese, total [as Mn]MO AVG report only all year
002Manganese, total [as Mn]DAILY MX report only all year
002Thallium, total [as Tl]MO AVG <= .002 mg/L all year
002Thallium, total [as Tl]DAILY MX <= .004 mg/L all year
002Silver, total [as Ag]MO AVG <= .003 mg/L all year
002Silver, total [as Ag]DAILY MX <= .006 mg/L all year
002Aluminum, total [as Al]MO AVG <= .75 mg/L all year
002Aluminum, total [as Al]DAILY MX <= .75 mg/L all year
002Aluminum, total [as Al]MO AVG report only all year
002Aluminum, total [as Al]DAILY MX report only all year
002Selenium, total [as Se]MO AVG <= .005 mg/L all year
002Selenium, total [as Se]DAILY MX <= .01 mg/L all year
002PentachlorophenolMO AVG <= .0003 mg/L all year
002PentachlorophenolDAILY MX <= .0006 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualMO AVG report only all year
002Chlorine, total residualDAILY MX report only all year
002Cyanide, free availableMO AVG report only all year
002Cyanide, free availableDAILY MX report only all year
002Solids, total dissolvedMO AVG report only all year
002Solids, total dissolvedDAILY MX report only all year
002Solids, total dissolvedMO AVG report only all year
002Solids, total dissolvedDAILY MX report only all year
002Bromide [as Br]MO AVG report only all year
002Bromide [as Br]DAILY MX report only all year
002Bromide [as Br]MO AVG report only all year
002Bromide [as Br]DAILY MX report only all year
002Osmotic pressure, total, unf whl wtrMO AVG <= 50 mOsm/kg all year
002Osmotic pressure, total, unf whl wtrDAILY MX <= 100 mOsm/kg all year
005pHINST MIN report only all year
005pHINST MAX report only all year
005Solids, total suspendedMO AVG report only all year
005Solids, total suspendedDAILY MX report only all year
005Iron, total [as Fe]MO AVG <= 1.5 mg/L all year
005Iron, total [as Fe]DAILY MX <= 3 mg/L all year
005Manganese, total [as Mn]MO AVG <= 1 mg/L all year
005Manganese, total [as Mn]DAILY MX <= 2 mg/L all year
005Aluminum, total [as Al]MO AVG <= .75 mg/L all year
005Aluminum, total [as Al]DAILY MX <= .75 mg/L all year
010pHINST MIN report only all year
010pHINST MAX report only all year
010Solids, total suspendedMO AVG report only all year
010Solids, total suspendedDAILY MX report only all year
010Iron, total [as Fe]MO AVG <= 1.5 mg/L all year
010Iron, total [as Fe]DAILY MX <= 3 mg/L all year
010Manganese, total [as Mn]MO AVG <= 1 mg/L all year
010Manganese, total [as Mn]DAILY MX <= 2 mg/L all year
010Aluminum, total [as Al]MO AVG <= .75 mg/L all year
010Aluminum, total [as Al]DAILY MX <= .75 mg/L all year
011pHINST MIN report only all year
011pHINST MAX report only all year
011Solids, total suspendedMO AVG report only all year
011Solids, total suspendedDAILY MX report only all year
011Iron, total [as Fe]MO AVG <= 1.5 mg/L all year
011Iron, total [as Fe]DAILY MX <= 3 mg/L all year
011Manganese, total [as Mn]MO AVG <= 1 mg/L all year
011Manganese, total [as Mn]DAILY MX <= 2 mg/L all year
011Aluminum, total [as Al]MO AVG <= .75 mg/L all year
011Aluminum, total [as Al]DAILY MX <= .75 mg/L 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