W & P DEVELOPMENT CORPORATION

NPDES permit TX0053023 · Major NON-POTW · effective, expires 2031-06-19 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

4values over a limit
0required values missing, on 0 form(s)
0of 49 forms filed late

Last period with anything received: 2026-07-31. Most often over: Enterococci (1), Oxygen demand, chem. [high level] [COD] (1), pH range excursions, > 60 minutes (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 (187)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY AV <= 53 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 163 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 1769 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 5440 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001pHMINIMUM >= 5 SU all year
001pHMAXIMUM <= 11 SU all year
001Solids, total suspendedDAILY AV <= 11.3 mg/L all year
001Solids, total suspendedDAILY MX <= 29.6 mg/L all year
001Solids, total suspendedDAILY AV <= 377 lb/d all year
001Solids, total suspendedDAILY MX <= 988 lb/d all year
001Oil & GreaseDAILY AV <= 38 mg/L all year
001Oil & GreaseDAILY MX <= 127 mg/L all year
001Oil & GreaseDAILY AV <= 1268 lb/d all year
001Oil & GreaseDAILY MX <= 4239 lb/d all year
001Cyanide, free [as free]DAILY AV report only all year
001Cyanide, free [as free]DAILY MN report only all year
001Cyanide, free [as free]DAILY AV report only all year
001Cyanide, free [as free]DAILY MX report only all year
001Arsenic, total [as As]DAILY AV <= .0199 mg/L all year
001Arsenic, total [as As]DAILY MX <= .0993 mg/L all year
001Arsenic, total [as As]DAILY AV <= .664 lb/d all year
001Arsenic, total [as As]DAILY MX <= 3.31 lb/d all year
001Cadmium, total [as Cd]DAILY AV <= .0102 mg/L all year
001Cadmium, total [as Cd]DAILY MX <= .0172 mg/L all year
001Cadmium, total [as Cd]DAILY AV <= .34 lb/d all year
001Cadmium, total [as Cd]DAILY MX <= .574 lb/d all year
001Chromium, total [as Cr]DAILY AV <= .0522 mg/L all year
001Chromium, total [as Cr]DAILY MX <= .167 mg/L all year
001Chromium, total [as Cr]DAILY AV <= 1.74 lb/d all year
001Chromium, total [as Cr]DAILY MX <= 5.57 lb/d all year
001Cobalt, total [as Co]DAILY AV <= .0703 mg/L all year
001Cobalt, total [as Co]DAILY MX <= .182 mg/L all year
001Cobalt, total [as Co]DAILY AV <= 2.34 lb/d all year
001Cobalt, total [as Co]DAILY MX <= 6.07 lb/d all year
001Copper, total [as Cu]DAILY AV <= .043 mg/L all year
001Copper, total [as Cu]DAILY MX <= .0911 mg/L all year
001Copper, total [as Cu]DAILY AV <= 1.43 lb/d all year
001Copper, total [as Cu]DAILY MX <= 3.04 lb/d all year
001Lead, total [as Pb]DAILY AV <= .154 mg/L all year
001Lead, total [as Pb]DAILY MX <= .326 mg/L all year
001Lead, total [as Pb]DAILY AV <= 5.14 lb/d all year
001Lead, total [as Pb]DAILY MX <= 10.8 lb/d all year
001Nickel, total [as Ni]DAILY AV <= .131 mg/L all year
001Nickel, total [as Ni]DAILY MX <= .276 mg/L all year
001Nickel, total [as Ni]DAILY AV <= 4.37 lb/d all year
001Nickel, total [as Ni]DAILY MX <= 9.21 lb/d all year
001Silver, total [as Ag]DAILY AV <= .0071 mg/L all year
001Silver, total [as Ag]DAILY MX <= .0151 mg/L all year
001Silver, total [as Ag]DAILY AV <= .239 lb/d all year
001Silver, total [as Ag]DAILY MX <= .505 lb/d all year
001Vanadium, total [as V]DAILY AV <= .0518 mg/L all year
001Vanadium, total [as V]DAILY MX <= .0628 mg/L all year
001Vanadium, total [as V]DAILY AV <= 1.72 lb/d all year
001Vanadium, total [as V]DAILY MX <= 2.09 lb/d all year
001Zinc, total [as Zn]DAILY AV <= .24 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .509 mg/L all year
001Zinc, total [as Zn]DAILY AV <= 8.04 lb/d all year
001Zinc, total [as Zn]DAILY MX <= 17 lb/d all year
001Antimony, total [as Sb]DAILY AV <= .0312 mg/L all year
001Antimony, total [as Sb]DAILY MX <= .111 mg/L all year
001Antimony, total [as Sb]DAILY AV <= 1.04 lb/d all year
001Antimony, total [as Sb]DAILY MX <= 3.7 lb/d all year
001Tin, total [as Sn]DAILY AV <= .0367 mg/L all year
001Tin, total [as Sn]DAILY MX <= .0955 mg/L all year
001Tin, total [as Sn]DAILY AV <= 1.22 lb/d all year
001Tin, total [as Sn]DAILY MX <= 3.18 lb/d all year
001Selenium, total [as Se]DAILY AV <= .0698 mg/L all year
001Selenium, total [as Se]DAILY MX <= .176 mg/L all year
001Selenium, total [as Se]DAILY AV <= 2.32 lb/d all year
001Selenium, total [as Se]DAILY MX <= 5.87 lb/d all year
001Titanium, total [as Ti]DAILY AV <= .00612 mg/L all year
001Titanium, total [as Ti]DAILY MX <= .0159 mg/L all year
001Titanium, total [as Ti]DAILY AV <= .204 lb/d all year
001Titanium, total [as Ti]DAILY MX <= .53 lb/d all year
001Butyl benzyl phthalateDAILY AV <= .0887 mg/L all year
001Butyl benzyl phthalateDAILY MX <= .188 mg/L all year
001Butyl benzyl phthalateDAILY AV <= 2.96 lb/d all year
001Butyl benzyl phthalateDAILY MX <= 6.27 lb/d all year
001FluorantheneDAILY AV <= .0268 mg/L all year
001FluorantheneDAILY MX <= .0537 mg/L all year
001FluorantheneDAILY AV <= .894 lb/d all year
001FluorantheneDAILY MX <= 1.79 lb/d all year
0012,4,6-TrichlorophenolDAILY AV <= .106 mg/L all year
0012,4,6-TrichlorophenolDAILY MX <= .155 mg/L all year
0012,4,6-TrichlorophenolDAILY AV <= 3.53 lb/d all year
0012,4,6-TrichlorophenolDAILY MX <= 5.17 lb/d all year
001PhenolDAILY AV <= 1.08 mg/L all year
001PhenolDAILY MX <= 3.65 mg/L all year
001PhenolDAILY AV <= 36 lb/d all year
001PhenolDAILY MX <= 121 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .101 mg/L all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .215 mg/L all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= 3.37 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 7.17 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= 4 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= 8 MGD all year
001Chlorine, total residualMO MIN >= .5 mg/L all year
001Chlorine, total residualMO MAX <= 4 mg/L all year
001EnterococciDAILY AV <= 35 CFU/100mL all year
001EnterococciDAILY MX <= 104 CFU/100mL all year
001Mercury, total [as Hg]DAILY AV <= .000246 mg/L all year
001Mercury, total [as Hg]DAILY MX <= .000641 mg/L all year
001Mercury, total [as Hg]DAILY AV <= .0082 lb/d all year
001Mercury, total [as Hg]DAILY MX <= .0214 lb/d all year
001Acetone, dry weightDAILY AV <= 7.97 mg/L all year
001Acetone, dry weightDAILY MX <= 30.2 mg/L all year
001Acetone, dry weightDAILY AV <= 266 lb/d all year
001Acetone, dry weightDAILY MX <= 1008 lb/d all year
001PyridineDAILY AV <= .182 mg/L all year
001PyridineDAILY MX <= .37 mg/L all year
001PyridineDAILY AV <= 6.07 lb/d all year
001PyridineDAILY MX <= 12.3 lb/d all year
001p-CresolDAILY AV <= .205 mg/L all year
001p-CresolDAILY MX <= .698 mg/L all year
001p-CresolDAILY AV <= 6.84 lb/d all year
001p-CresolDAILY MX <= 23.2 lb/d all year
001n-DecaneDAILY AV <= .437 mg/L all year
001n-DecaneDAILY MX <= .948 mg/L all year
001n-DecaneDAILY AV <= 14.5 lb/d all year
001n-DecaneDAILY MX <= 31.6 lb/d all year
001CarbazoleDAILY AV <= .276 mg/L all year
001CarbazoleDAILY MX <= .598 mg/L all year
001CarbazoleDAILY AV <= 9.21 lb/d all year
001CarbazoleDAILY MX <= 19.9 lb/d all year
001n-OctadecaneDAILY AV <= .302 mg/L all year
001n-OctadecaneDAILY MX <= .589 mg/L all year
001n-OctadecaneDAILY AV <= 10 lb/d all year
001n-OctadecaneDAILY MX <= 19.6 lb/d all year
0012-ButanoneDAILY AV <= 1.85 mg/L all year
0012-ButanoneDAILY MX <= 4.81 mg/L all year
0012-ButanoneDAILY AV <= 61.7 lb/d all year
0012-ButanoneDAILY MX <= 160 lb/d all year
001o-Cresol [2-Methylphenol]DAILY AV <= .561 mg/L all year
001o-Cresol [2-Methylphenol]DAILY MX <= 1.92 mg/L all year
001o-Cresol [2-Methylphenol]DAILY AV <= 18.7 lb/d all year
001o-Cresol [2-Methylphenol]DAILY MX <= 64 lb/d all year
001AcetophenoneDAILY AV <= .0562 mg/L all year
001AcetophenoneDAILY MX <= .114 mg/L all year
001AcetophenoneDAILY AV <= 1.87 lb/d all year
001AcetophenoneDAILY MX <= 3.8 lb/d all year
001pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
001pH range excursions, monthly total accumMO TOTAL <= 446 min all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 75 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Carbon, tot organic [TOC]DAILY MX <= 75 mg/L all year
003Flow, in conduit or thru treatment plantDAILY AV report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Carbon, tot organic [TOC]DAILY MX <= 75 mg/L all year
004Flow, in conduit or thru treatment plantDAILY AV report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX1LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TXALC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXALC50 Pass/Fail Static 24Hr Acute Menidia beryllinaSINGSAMP 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