Hess Tioga Gas Plant LLC

NPDES permit ND0025836 · Minor NON-POTW · effective, expires 2029-03-31 · 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
0required values missing, on 0 form(s)
3of 30 forms filed late

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

Reporting

Reports are due about 58 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (60)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [COD], dissolvedDAILY MN report only all year
001Oxygen demand, chem. [COD], dissolvedMO AVG report only all year
001Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MN report only all year
001Solids, total suspendedMO AVG <= 35 mg/L all year
001Solids, total suspendedDAILY MX <= 70 mg/L all year
001Oil & GreaseDAILY MN report only all year
001Oil & GreaseMO AVG report only all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Sulfate, total [as SO4]DAILY MN report only all year
001Sulfate, total [as SO4]MO AVG <= 750 mg/L all year
001Sulfate, total [as SO4]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
001Flow, totalMO TOTAL report only all year
001Duration of dischargeMO TOTAL report only all year
001Oil and grease visualTOTAL report only all year
002Oxygen demand, chem. [COD], dissolvedDAILY MN report only all year
002Oxygen demand, chem. [COD], dissolvedMO AVG report only all year
002Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MN report only all year
002Solids, total suspendedMO AVG <= 35 mg/L all year
002Solids, total suspendedDAILY MX <= 70 mg/L all year
002Oil & GreaseDAILY MN report only all year
002Oil & GreaseMO AVG report only all year
002Oil & GreaseDAILY MX <= 10 mg/L all year
002Sulfate, total [as SO4]DAILY MN report only all year
002Sulfate, total [as SO4]MO AVG <= 750 mg/L all year
002Sulfate, total [as SO4]DAILY MX report only 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
002Flow, totalMO TOTAL report only all year
002Duration of dischargeMO TOTAL report only all year
002Oil and grease visualTOTAL report only all year
003Oxygen demand, chem. [COD], dissolvedDAILY MN report only all year
003Oxygen demand, chem. [COD], dissolvedMO AVG report only all year
003Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MN report only all year
003Solids, total suspendedMO AVG <= 35 mg/L all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Oil & GreaseDAILY MN report only all year
003Oil & GreaseMO AVG report only all year
003Oil & GreaseDAILY MX <= 10 mg/L all year
003Sulfate, total [as SO4]DAILY MN report only all year
003Sulfate, total [as SO4]30DA AVG <= 750 mg/L all year
003Sulfate, total [as SO4]DAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chlorine, total residualDAILY MN report only all year
003Chlorine, total residualMO AVG report only all year
003Chlorine, total residualDAILY MX report only all year
003Flow, totalMO TOTAL report only all year
003Duration of dischargeMO TOTAL report only all year
003Oil and grease visualTOTAL 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