SWE, Inc. - Southwest Engineers

NPDES permit LA0101648 · Minor NON-POTW · effective, expires 2028-02-28 · 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

0values over a limit
4required values missing, on 2 form(s)
1of 27 forms filed late

Last period with anything received: 2026-07-31.

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 (312)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L 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
001EnterococciMO AVG <= 35 #/100mL all year
001EnterococciDAILY MX <= 135 #/100mL all year
001Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL all year
003BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
003BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedDAILY MX <= 45 mg/L 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
003EnterococciMO AVG <= 35 #/100mL all year
003EnterococciDAILY MX <= 135 #/100mL all year
003Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
003Coliform, fecal generalDAILY MX <= 400 #/100mL all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 45 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
005BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
005pHINST MIN >= 6 SU all year
005pHINST MAX <= 9 SU all year
005Solids, total suspendedMO AVG <= 30 mg/L all year
005Solids, total suspendedDAILY MX <= 45 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005EnterococciMO AVG <= 35 #/100mL all year
005EnterococciDAILY MX <= 135 #/100mL all year
005Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
005Coliform, fecal generalDAILY MX <= 400 #/100mL all year
006pHINST MIN >= 6 SU all year
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU all year
006pHINST MAX <= 9 SU all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Nitrogen, total [as N]MO AVG report only all year
006Nitrogen, total [as N]DAILY MX report only all year
006Phosphorus, total [as P]MO AVG report only all year
006Phosphorus, total [as P]DAILY MX report only all year
006Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
006Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
006Cyanide, total [as CN]DAILY MX <= 100 ug/L all year
006Cyanide, total [as CN]DAILY MX <= 100 ug/L all year
006Arsenic, total [as As]DAILY MX <= 100 ug/L all year
006Arsenic, total [as As]DAILY MX <= 100 ug/L all year
006Beryllium, total [as Be]DAILY MX <= 100 ug/L all year
006Beryllium, total [as Be]DAILY MX <= 100 ug/L all year
006Cadmium, total [as Cd]DAILY MX <= 100 ug/L all year
006Cadmium, total [as Cd]DAILY MX <= 100 ug/L all year
006Chromium, total [as Cr]DAILY MX <= 150 ug/L all year
006Chromium, total [as Cr]DAILY MX <= 150 ug/L all year
006Copper, total [as Cu]DAILY MX <= 500 ug/L all year
006Copper, total [as Cu]DAILY MX <= 500 ug/L all year
006Lead, total [as Pb]DAILY MX <= 150 ug/L all year
006Lead, total [as Pb]DAILY MX <= 150 ug/L all year
006Thallium, total [as Tl]DAILY MX <= 100 ug/L all year
006Thallium, total [as Tl]DAILY MX <= 100 ug/L all year
006Nickel, total [as Ni]DAILY MX <= 500 ug/L all year
006Nickel, total [as Ni]DAILY MX <= 500 ug/L all year
006Silver, total [as Ag]DAILY MX <= 100 ug/L all year
006Silver, total [as Ag]DAILY MX <= 100 ug/L all year
006Zinc, total [as Zn]DAILY MX <= 1000 ug/L all year
006Zinc, total [as Zn]DAILY MX <= 1000 ug/L all year
006Antimony, total [as Sb]DAILY MX <= 600 ug/L all year
006Antimony, total [as Sb]DAILY MX <= 600 ug/L all year
006Selenium, total [as Se]DAILY MX <= 100 ug/L all year
006Selenium, total [as Se]DAILY MX <= 100 ug/L all year
006DichlorobromomethaneDAILY MX <= 100 ug/L all year
006DichlorobromomethaneDAILY MX <= 100 ug/L all year
006Carbon tetrachlorideDAILY MX <= 100 ug/L all year
006Carbon tetrachlorideDAILY MX <= 100 ug/L all year
0061,2-DichloroethaneDAILY MX <= 100 ug/L all year
0061,2-DichloroethaneDAILY MX <= 100 ug/L all year
006BromoformDAILY MX <= 100 ug/L all year
006BromoformDAILY MX <= 100 ug/L all year
006DibromochloromethaneDAILY MX <= 100 ug/L all year
006DibromochloromethaneDAILY MX <= 100 ug/L all year
006ChloroformDAILY MX <= 100 ug/L all year
006ChloroformDAILY MX <= 100 ug/L all year
006Phenolics, total recoverableDAILY MX <= 500 ug/L all year
006Phenolics, total recoverableDAILY MX <= 500 ug/L all year
006TolueneDAILY MX <= 100 ug/L all year
006TolueneDAILY MX <= 100 ug/L all year
006BenzeneDAILY MX <= 100 ug/L all year
006BenzeneDAILY MX <= 100 ug/L all year
006.delta.-BHCDAILY MX <= 10 ug/L all year
006.delta.-BHCDAILY MX <= 10 ug/L all year
006AcenaphthyleneDAILY MX <= 100 ug/L all year
006AcenaphthyleneDAILY MX <= 100 ug/L all year
006AcenaphtheneDAILY MX <= 100 ug/L all year
006AcenaphtheneDAILY MX <= 100 ug/L all year
006AcroleinDAILY MX <= 100 ug/L all year
006AcroleinDAILY MX <= 100 ug/L all year
006AcrylonitrileDAILY MX <= 100 ug/L all year
006AcrylonitrileDAILY MX <= 100 ug/L all year
006AnthraceneDAILY MX <= 100 ug/L all year
006AnthraceneDAILY MX <= 100 ug/L all year
006Benzo[b]fluorantheneDAILY MX <= 100 ug/L all year
006Benzo[b]fluorantheneDAILY MX <= 100 ug/L all year
006Benzo[k]fluorantheneDAILY MX <= 100 ug/L all year
006Benzo[k]fluorantheneDAILY MX <= 100 ug/L all year
006Benzo[a]pyreneDAILY MX <= 100 ug/L all year
006Benzo[a]pyreneDAILY MX <= 100 ug/L all year
006Bis[2-chloroethyl] etherDAILY MX <= 100 ug/L all year
006Bis[2-chloroethyl] etherDAILY MX <= 100 ug/L all year
006Bis[2-chloroethoxy]methaneDAILY MX <= 100 ug/L all year
006Bis[2-chloroethoxy]methaneDAILY MX <= 100 ug/L all year
006Bis[2-chloroisopropyl] etherDAILY MX <= 100 ug/L all year
006Bis[2-chloroisopropyl] etherDAILY MX <= 100 ug/L all year
006Butyl benzyl phthalateDAILY MX <= 100 ug/L all year
006Butyl benzyl phthalateDAILY MX <= 100 ug/L all year
006ChlorobenzeneDAILY MX <= 100 ug/L all year
006ChlorobenzeneDAILY MX <= 100 ug/L all year
006ChryseneDAILY MX <= 100 ug/L all year
006ChryseneDAILY MX <= 100 ug/L all year
006Diethyl phthalateDAILY MX <= 100 ug/L all year
006Diethyl phthalateDAILY MX <= 100 ug/L all year
006Dimethyl phthalateDAILY MX <= 100 ug/L all year
006Dimethyl phthalateDAILY MX <= 100 ug/L all year
0061,2-DiphenylhydrazineDAILY MX <= 100 ug/L all year
0061,2-DiphenylhydrazineDAILY MX <= 100 ug/L all year
006Endosulfan sulfateDAILY MX <= 10 ug/L all year
006Endosulfan sulfateDAILY MX <= 10 ug/L all year
006.beta.-EndosulfanDAILY MX <= 10 ug/L all year
006.beta.-EndosulfanDAILY MX <= 10 ug/L all year
006.alpha.-EndosulfanDAILY MX <= 10 ug/L all year
006.alpha.-EndosulfanDAILY MX <= 10 ug/L all year
006Endrin aldehydeDAILY MX <= 10 ug/L all year
006Endrin aldehydeDAILY MX <= 10 ug/L all year
006EthylbenzeneDAILY MX <= 100 ug/L all year
006EthylbenzeneDAILY MX <= 100 ug/L all year
006FluorantheneDAILY MX <= 100 ug/L all year
006FluorantheneDAILY MX <= 100 ug/L all year
006FluoreneDAILY MX <= 100 ug/L all year
006FluoreneDAILY MX <= 100 ug/L all year
006HexachlorocyclopentadieneDAILY MX <= 100 ug/L all year
006HexachlorocyclopentadieneDAILY MX <= 100 ug/L all year
006HexachlorobutadieneDAILY MX <= 100 ug/L all year
006HexachlorobutadieneDAILY MX <= 100 ug/L all year
006HexachloroethaneDAILY MX <= 100 ug/L all year
006HexachloroethaneDAILY MX <= 100 ug/L all year
006Indeno[1,2,3-cd]pyreneDAILY MX <= 100 ug/L all year
006Indeno[1,2,3-cd]pyreneDAILY MX <= 100 ug/L all year
006IsophoroneDAILY MX <= 100 ug/L all year
006IsophoroneDAILY MX <= 100 ug/L all year
006Methyl bromide [Bromomethane]DAILY MX <= 100 ug/L all year
006Methyl bromide [Bromomethane]DAILY MX <= 100 ug/L all year
006Methyl chloride [Chloromethane]DAILY MX <= 100 ug/L all year
006Methyl chloride [Chloromethane]DAILY MX <= 100 ug/L all year
006Methylene chlorideDAILY MX <= 100 ug/L all year
006Methylene chlorideDAILY MX <= 100 ug/L all year
006N-Nitrosodi-N-propylamineDAILY MX <= 100 ug/L all year
006N-Nitrosodi-N-propylamineDAILY MX <= 100 ug/L all year
006N-NitrosodiphenylamineDAILY MX <= 100 ug/L all year
006N-NitrosodiphenylamineDAILY MX <= 100 ug/L all year
006N-Nitrosodimethylamine [NDMA]DAILY MX <= 100 ug/L all year
006N-Nitrosodimethylamine [NDMA]DAILY MX <= 100 ug/L all year
006NitrobenzeneDAILY MX <= 100 ug/L all year
006NitrobenzeneDAILY MX <= 100 ug/L all year
006para-Chloro-meta-cresolDAILY MX <= 100 ug/L all year
006para-Chloro-meta-cresolDAILY MX <= 100 ug/L all year
006PhenanthreneDAILY MX <= 100 ug/L all year
006PhenanthreneDAILY MX <= 100 ug/L all year
006PyreneDAILY MX <= 100 ug/L all year
006PyreneDAILY MX <= 100 ug/L all year
006TetrachloroethyleneDAILY MX <= 100 ug/L all year
006TetrachloroethyleneDAILY MX <= 100 ug/L all year
0061,1-DichloroethaneDAILY MX <= 100 ug/L all year
0061,1-DichloroethaneDAILY MX <= 100 ug/L all year
0061,1-DichloroethyleneDAILY MX <= 100 ug/L all year
0061,1-DichloroethyleneDAILY MX <= 100 ug/L all year
0061,1,1-TrichloroethaneDAILY MX <= 100 ug/L all year
0061,1,1-TrichloroethaneDAILY MX <= 100 ug/L all year
0061,1,2-TrichloroethaneDAILY MX <= 100 ug/L all year
0061,1,2-TrichloroethaneDAILY MX <= 100 ug/L all year
0061,1,2,2-TetrachloroethaneDAILY MX <= 100 ug/L all year
0061,1,2,2-TetrachloroethaneDAILY MX <= 100 ug/L all year
006Benzo[ghi]peryleneDAILY MX <= 100 ug/L all year
006Benzo[ghi]peryleneDAILY MX <= 100 ug/L all year
006Benzo[a]anthraceneDAILY MX <= 100 ug/L all year
006Benzo[a]anthraceneDAILY MX <= 100 ug/L all year
0061,2-DichlorobenzeneDAILY MX <= 100 ug/L all year
0061,2-DichlorobenzeneDAILY MX <= 100 ug/L all year
0061,2-DichloropropaneDAILY MX <= 100 ug/L all year
0061,2-DichloropropaneDAILY MX <= 100 ug/L all year
006trans-1,2-DichloroethyleneDAILY MX <= 100 ug/L all year
006trans-1,2-DichloroethyleneDAILY MX <= 100 ug/L all year
0061,2,4-TrichlorobenzeneDAILY MX <= 100 ug/L all year
0061,2,4-TrichlorobenzeneDAILY MX <= 100 ug/L all year
006Dibenz[a,h]anthraceneDAILY MX <= 100 ug/L all year
006Dibenz[a,h]anthraceneDAILY MX <= 100 ug/L all year
0061,3-DichlorobenzeneDAILY MX <= 100 ug/L all year
0061,3-DichlorobenzeneDAILY MX <= 100 ug/L all year
0061,4-DichlorobenzeneDAILY MX <= 100 ug/L all year
0061,4-DichlorobenzeneDAILY MX <= 100 ug/L all year
0062-Chloroethyl vinyl ether, [mixed]DAILY MX <= 100 ug/L all year
0062-Chloroethyl vinyl ether, [mixed]DAILY MX <= 100 ug/L all year
0062-ChloronaphthaleneDAILY MX <= 100 ug/L all year
0062-ChloronaphthaleneDAILY MX <= 100 ug/L all year
0062-ChlorophenolDAILY MX <= 100 ug/L all year
0062-ChlorophenolDAILY MX <= 100 ug/L all year
0062-NitrophenolDAILY MX <= 100 ug/L all year
0062-NitrophenolDAILY MX <= 100 ug/L all year
006Di-n-octyl phthalateDAILY MX <= 100 ug/L all year
006Di-n-octyl phthalateDAILY MX <= 100 ug/L all year
0062,4-DichlorophenolDAILY MX <= 100 ug/L all year
0062,4-DichlorophenolDAILY MX <= 100 ug/L all year
0062,4-DimethylphenolDAILY MX <= 100 ug/L all year
0062,4-DimethylphenolDAILY MX <= 100 ug/L all year
0062,4-DinitrotolueneDAILY MX <= 100 ug/L all year
0062,4-DinitrotolueneDAILY MX <= 100 ug/L all year
0062,4-DinitrophenolDAILY MX <= 100 ug/L all year
0062,4-DinitrophenolDAILY MX <= 100 ug/L all year
0062,4,6-TrichlorophenolDAILY MX <= 100 ug/L all year
0062,4,6-TrichlorophenolDAILY MX <= 100 ug/L all year
0062,6-DinitrotolueneDAILY MX <= 100 ug/L all year
0062,6-DinitrotolueneDAILY MX <= 100 ug/L all year
0063,3'-DichlorobenzidineDAILY MX <= 100 ug/L all year
0063,3'-DichlorobenzidineDAILY MX <= 100 ug/L all year
0064-Bromophenyl phenyl etherDAILY MX <= 100 ug/L all year
0064-Bromophenyl phenyl etherDAILY MX <= 100 ug/L all year
0064-Chlorophenyl phenyl etherDAILY MX <= 100 ug/L all year
0064-Chlorophenyl phenyl etherDAILY MX <= 100 ug/L all year
0064-NitrophenolDAILY MX <= 100 ug/L all year
0064-NitrophenolDAILY MX <= 100 ug/L all year
0064,6-Dinitro-o-cresolDAILY MX <= 100 ug/L all year
0064,6-Dinitro-o-cresolDAILY MX <= 100 ug/L all year
006PCB-1016DAILY MX report only all year
006PCB-1016DAILY MX report only all year
0062,3,7,8-Tetrachlorodibenzo-p-dioxinDAILY MX <= 5 ug/L all year
0062,3,7,8-Tetrachlorodibenzo-p-dioxinDAILY MX <= 5 ug/L all year
006PhenolDAILY MX <= 100 ug/L all year
006PhenolDAILY MX <= 100 ug/L all year
006NaphthaleneDAILY MX <= 100 ug/L all year
006NaphthaleneDAILY MX <= 100 ug/L all year
006PentachlorophenolDAILY MX <= 100 ug/L all year
006PentachlorophenolDAILY MX <= 100 ug/L all year
006Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 100 ug/L all year
006Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 100 ug/L all year
006Di-n-butyl phthalateDAILY MX <= 100 ug/L all year
006Di-n-butyl phthalateDAILY MX <= 100 ug/L all year
006BenzidineDAILY MX <= 100 ug/L all year
006BenzidineDAILY MX <= 100 ug/L all year
006Vinyl chlorideDAILY MX <= 100 ug/L all year
006Vinyl chlorideDAILY MX <= 100 ug/L all year
006TrichloroethyleneDAILY MX <= 100 ug/L all year
006TrichloroethyleneDAILY MX <= 100 ug/L all year
0064,4'-DDTDAILY MX <= 10 ug/L all year
0064,4'-DDTDAILY MX <= 10 ug/L all year
0064,4'-DDDDAILY MX <= 10 ug/L all year
0064,4'-DDDDAILY MX <= 10 ug/L all year
0064,4'-DDEDAILY MX <= 10 ug/L all year
0064,4'-DDEDAILY MX <= 10 ug/L all year
006AldrinDAILY MX <= 10 ug/L all year
006AldrinDAILY MX <= 10 ug/L all year
006.alpha.-BHCDAILY MX <= 10 ug/L all year
006.alpha.-BHCDAILY MX <= 10 ug/L all year
006.beta.-BHCDAILY MX <= 10 ug/kg all year
006.beta.-BHCDAILY MX <= 10 ug/kg all year
006.gamma.-BHCDAILY MX <= 10 ug/L all year
006.gamma.-BHCDAILY MX <= 10 ug/L all year
006DieldrinDAILY MX <= 10 ug/L all year
006DieldrinDAILY MX <= 10 ug/L all year
006EndrinDAILY MX <= 5 ug/L all year
006EndrinDAILY MX <= 5 ug/L all year
006ToxapheneDAILY MX <= 10 ug/L all year
006ToxapheneDAILY MX <= 10 ug/L all year
006HeptachlorDAILY MX <= 10 ug/L all year
006HeptachlorDAILY MX <= 10 ug/L all year
006Heptachlor epoxideDAILY MX <= 10 ug/L all year
006Heptachlor epoxideDAILY MX <= 10 ug/L all year
006PCB-1221DAILY MX report only all year
006PCB-1221DAILY MX report only all year
006PCB-1232DAILY MX report only all year
006PCB-1232DAILY MX report only all year
006PCB-1242DAILY MX report only all year
006PCB-1242DAILY MX report only all year
006PCB-1248DAILY MX report only all year
006PCB-1248DAILY MX report only all year
006PCB-1254DAILY MX report only all year
006PCB-1254DAILY MX report only all year
006PCB-1260DAILY MX report only all year
006PCB-1260DAILY MX report only all year
006HexachlorobenzeneDAILY MX <= 100 ug/L all year
006HexachlorobenzeneDAILY MX <= 100 ug/L all year
006BTEXDAILY MX <= 250 ug/L all year
006BTEXDAILY MX <= 250 ug/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006ChlordaneDAILY MX <= 10 ug/L all year
006ChlordaneDAILY MX <= 10 ug/L all year
006Mercury, total [as Hg]DAILY MX <= 10 ug/L all year
006Mercury, total [as Hg]DAILY MX <= 10 ug/L all year
0061,3-DichloropropeneDAILY MX <= 100 ug/L all year
0061,3-DichloropropeneDAILY MX <= 100 ug/L all year
006ChloroethaneDAILY MX <= 100 ug/L all year
006ChloroethaneDAILY MX <= 100 ug/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