NORIT AMERICAS INC

NPDES permit TX0000710 · Major NON-POTW · effective, expires 2026-09-23 · 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)
0of 22 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among TX permits in EPA's filings — check your permit).

Limits in force (41)

OutfallParameterStatisticLimitMonths
002BOD, 5-day, 20 deg. CDAILY AV <= 115 lb/d all year
002BOD, 5-day, 20 deg. CDAILY MX <= 230 lb/d all year
002Oxygen demand, chem. [high level] [COD]DAILY AV <= 955 lb/d all year
002Oxygen demand, chem. [high level] [COD]DAILY MX <= 1910 lb/d all year
002pHMINIMUM >= 5 SU all year
002pHMAXIMUM <= 11 SU all year
002Solids, total suspendedDAILY AV <= 172 lb/d all year
002Solids, total suspendedDAILY MX <= 344 lb/d all year
002Nitrogen, ammonia total [as N]DAILY AV <= 107 lb/d all year
002Nitrogen, ammonia total [as N]DAILY MX <= 214 lb/d all year
002Selenium, total [as Se]DAILY AV <= .111 mg/L all year
002Selenium, total [as Se]DAILY MX <= .236 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV <= 2 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX <= 4 MGD all year
002Solids, total dissolvedDAILY MX report only all year
002pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
002pH range excursions, monthly total accumMO TOTAL <= 446 min all year
TX2Whole effluent toxicity - retest #148HR MIN report only all year
TX2Whole effluent toxicity - retest #1MO AV MN report only all year
TX2Whole effluent toxicity - retest #248HR MIN report only all year
TX2Whole effluent toxicity - retest #2MO AV MN report only all year
TX2Whole Effluent Toxicity [WET] - D. pulex48HR MIN >= 35 % all year
TX2Whole Effluent Toxicity [WET] - D. pulexMO AV MN >= 35 % all year
TX2Whole Effluent Toxicity [WET] - P. promelas48HR MIN >= 35 % all year
TX2Whole Effluent Toxicity [WET] - P. promelasMO AV MN >= 35 % all year
TX2Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
TX2Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexMO AV MN report only all year
TX2LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX2LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
TX2NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48HR MIN report only all year
TX2NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexMO AV MN report only all year
TX2NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48HR MIN report only all year
TX2NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasMO AV MN report only all year
TX2LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex48HR MIN report only all year
TX2LOAEC Lethal Static Renewal 48HR Acute Daphnia pulexMO AV MN report only all year
TX2LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX2LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
TXBWhole effluent toxicity - retest #1SINGSAMP report only all year
TXBWhole effluent toxicity - retest #2SINGSAMP report only all year
TXBLC50 Pass/Fail Static 24Hr Acute D. PulexSINGSAMP report only all year
TXBLC50 Pass/Fail Static 24Hr Acute Pimephales promelasSINGSAMP 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