WYMAN-GORDON FORGINGS LP

NPDES permit TX0042129 · Major NON-POTW · effective, expires 2029-10-25 · 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

13values over a limit
0required values missing, on 0 form(s)
0of 65 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli (6), Copper, total [as Cu] (6), Cyanide, total [as CN] (1).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (121)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY AV <= 15 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 20 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY AV <= 100 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV report only all year
001Solids, total suspendedDAILY MX <= 65 mg/L all year
001Oil & GreaseDAILY AV <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Chloride [as Cl]DAILY MX <= 975 mg/L all year
001Chromium, total [as Cr]DAILY MX <= 1 mg/L all year
001Copper, total [as Cu]DAILY MX <= 1 mg/L all year
001Lead, total [as Pb]DAILY MX <= 1 mg/L all year
001Manganese, total [as Mn]DAILY MX <= 2 mg/L all year
001Nickel, total [as Ni]DAILY MX <= 2 mg/L all year
001Zinc, total [as Zn]DAILY MX <= 2 mg/L all year
001Aluminum, total [as Al]DAILY AV report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Solids, total dissolvedDAILY MX <= 6000 mg/L all year
002Oxygen, dissolved [DO]MO MIN >= 5 mg/L all year
002Oxygen demand, chem. [high level] [COD]DAILY AV <= 376 lb/d all year
002Oxygen demand, chem. [high level] [COD]DAILY MX <= 563 lb/d all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY AV <= 20.7 lb/d all year
002Solids, total suspendedDAILY MX <= 65.1 lb/d all year
002Oil & GreaseDAILY AV <= 10.7 lb/d all year
002Oil & GreaseDAILY MX <= 14.9 lb/d all year
002Nitrogen, ammonia total [as N]DAILY AV <= 6.3 lb/d all year
002Nitrogen, ammonia total [as N]DAILY MX <= 14.1 lb/d all year
002Cyanide, total [as CN]DAILY AV <= .012 mg/L all year
002Cyanide, total [as CN]DAILY MX <= .026 mg/L all year
002Chloride [as Cl]DAILY MX <= 975 mg/L all year
002Sulfate, total [as SO4]DAILY MX <= 689 mg/L all year
002Fluoride, total [as F]DAILY AV <= 1.59 mg/L all year
002Fluoride, total [as F]DAILY MX <= 3.22 mg/L all year
002Chromium, hexavalent [as Cr]DAILY AV <= .0132 mg/L all year
002Chromium, hexavalent [as Cr]DAILY MX <= .0279 mg/L all year
002Chromium, total [as Cr]DAILY AV <= .068 mg/L all year
002Chromium, total [as Cr]DAILY MX <= .143 mg/L all year
002Copper, total [as Cu]DAILY AV <= .0161 mg/L all year
002Copper, total [as Cu]DAILY MX <= .034 mg/L all year
002Lead, total [as Pb]DAILY AV <= .00835 mg/L all year
002Lead, total [as Pb]DAILY MX <= .0177 mg/L all year
002Manganese, total [as Mn]DAILY MX <= 2 mg/L all year
002Nickel, total [as Ni]DAILY AV <= .1 mg/L all year
002Nickel, total [as Ni]DAILY MX <= .3 mg/L all year
002Silver, total [as Ag]DAILY AV <= .0022 mg/L all year
002Silver, total [as Ag]DAILY MX <= .005 mg/L all year
002Zinc, total [as Zn]DAILY AV <= .145 mg/L all year
002Zinc, total [as Zn]DAILY MX <= .307 mg/L all year
002Aluminum, total [as Al]DAILY AV <= .834 mg/L all year
002Aluminum, total [as Al]DAILY MX <= 1.77 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV <= .225 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX <= .55 MGD all year
002E. coliDAILY AV report only all year
002E. coliDAILY MX report only all year
002Solids, total dissolvedDAILY MX <= 6000 mg/L all year
002Mercury, total [as Hg]DAILY AV <= .000039 mg/L all year
002Mercury, total [as Hg]DAILY MX <= .000082 mg/L all year
002BOD, carbonaceous [5 day, 20 C]DAILY AV <= 41.3 lb/d all year
002BOD, carbonaceous [5 day, 20 C]DAILY MX <= 75 lb/d all year
101BOD, 5-day, 20 deg. CDAILY MX <= 20 mg/L all year
101Solids, total suspendedDAILY MX <= 65 mg/L all year
101Flow, in conduit or thru treatment plantDAILY AV report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101Chlorine, total residualMO MIN >= 1 mg/L all year
101Chlorine, total residualMO MAX <= 4 mg/L all year
101E. coliDAILY AV <= 63 CFU/100mL all year
101E. coliDAILY MX <= 197 CFU/100mL all year
201BOD, 5-day, 20 deg. CDAILY MX <= 20 mg/L all year
201Solids, total suspendedDAILY MX <= 65 mg/L all year
201Flow, in conduit or thru treatment plantDAILY AV report only all year
201Flow, in conduit or thru treatment plantDAILY MX report only all year
201Chlorine, total residualMO MIN >= 1 mg/L all year
201Chlorine, total residualMO MAX <= 4 mg/L all year
201E. coliDAILY AV <= 63 CFU/100mL all year
201E. coliDAILY MX <= 197 CFU/100mL all year
301BOD, 5-day, 20 deg. CDAILY MX <= 20 mg/L all year
301Solids, total suspendedDAILY MX <= 65 mg/L all year
301Flow, in conduit or thru treatment plantDAILY AV report only all year
301Flow, in conduit or thru treatment plantDAILY MX report only all year
301Chlorine, total residualMO MIN >= 1 mg/L all year
301Chlorine, total residualMO MAX <= 4 mg/L all year
301E. coliDAILY AV <= 63 CFU/100mL all year
301E. coliDAILY MX <= 197 CFU/100mL all year
TX2Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 12 % all year
TX2Whole Effluent Toxicity [WET] - C. dubiaMO AV MN >= 12 % all year
TX2Whole Effluent Toxicity [WET] - P. promelas7 DA MIN >= 12 % all year
TX2Whole Effluent Toxicity [WET] - P. promelasMO AV MN >= 12 % all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX2Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX2Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas7 DA MIN report only all year
TX2Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelasMO AV MN report only all year
TX2LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX2LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX2LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX2LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TXBWhole effluent toxicity7 DA MIN >= 100 % all year
TXBWhole effluent toxicityMO AV MN >= 100 % 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