NACHURS ALPINE SOLUTIONS LLC - ST GABRIEL SITE

NPDES permit LA0127490 · Minor NON-POTW · administratively continued, expires 2026-07-31 · 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.

This permit expired on 2026-07-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

27values over a limit
0required values missing, on 0 form(s)
0of 13 forms filed late

Last period with anything received: 2026-06-30. Most often over: BOD, 5-day, 20 deg. C (9), Solids, total suspended (5), Carbon, tot organic [TOC] (5).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among LA permits in EPA's filings — check your permit).

Limits in force (132)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 34 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 92 mg/L all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 49 mg/L all year
001Solids, total suspendedDAILY MX <= 159 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, organic total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
001Cyanide, total [as CN]MO AVG <= 420 ug/L all year
001Cyanide, total [as CN]DAILY MX <= 1200 ug/L all year
001Chromium, total [as Cr]MO AVG <= 1110 ug/L all year
001Chromium, total [as Cr]DAILY MX <= 2770 ug/L all year
001Copper, total [as Cu]MO AVG <= 1450 ug/L all year
001Copper, total [as Cu]DAILY MX <= 3380 ug/L all year
001Lead, total [as Pb]MO AVG <= 320 ug/L all year
001Lead, total [as Pb]DAILY MX <= 690 ug/L all year
001Nickel, total [as Ni]MO AVG <= 1690 ug/L all year
001Nickel, total [as Ni]DAILY MX <= 3980 ug/L all year
001Zinc, total [as Zn]MO AVG <= 1050 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 2610 ug/L all year
001Carbon tetrachlorideMO AVG <= 142 ug/L all year
001Carbon tetrachlorideDAILY MX <= 380 ug/L all year
0011,2-DichloroethaneMO AVG <= 180 ug/L all year
0011,2-DichloroethaneDAILY MX <= 574 ug/L all year
001ChloroformMO AVG <= 111 ug/L all year
001ChloroformDAILY MX <= 325 ug/L all year
001TolueneMO AVG <= 28 ug/L all year
001TolueneDAILY MX <= 74 ug/L all year
001BenzeneMO AVG <= 57 ug/L all year
001BenzeneDAILY MX <= 134 ug/L all year
001AcenaphthyleneMO AVG <= 19 ug/L all year
001AcenaphthyleneDAILY MX <= 47 ug/L all year
001AcenaphtheneMO AVG <= 19 ug/L all year
001AcenaphtheneDAILY MX <= 47 ug/L all year
001AcrylonitrileMO AVG <= 94 ug/L all year
001AcrylonitrileDAILY MX <= 232 ug/L all year
001AnthraceneMO AVG <= 19 ug/L all year
001AnthraceneDAILY MX <= 47 ug/L all year
001Benzo[b]fluorantheneMO AVG <= 20 ug/L all year
001Benzo[b]fluorantheneDAILY MX <= 48 ug/L all year
001Benzo[k]fluorantheneMO AVG <= 19 ug/L all year
001Benzo[k]fluorantheneDAILY MX <= 47 ug/L all year
001Benzo[a]pyreneMO AVG <= 20 ug/L all year
001Benzo[a]pyreneDAILY MX <= 48 ug/L all year
001ChlorobenzeneMO AVG <= 142 ug/L all year
001ChlorobenzeneDAILY MX <= 380 ug/L all year
001ChryseneMO AVG <= 19 ug/L all year
001ChryseneDAILY MX <= 47 ug/L all year
001Diethyl phthalateMO AVG <= 19 ug/L all year
001Diethyl phthalateDAILY MX <= 47 ug/L all year
001Dimethyl phthalateMO AVG <= 19 ug/L all year
001Dimethyl phthalateDAILY MX <= 47 ug/L all year
001EthylbenzeneMO AVG <= 142 ug/L all year
001EthylbenzeneDAILY MX <= 380 ug/L all year
001FluorantheneMO AVG <= 22 ug/L all year
001FluorantheneDAILY MX <= 54 ug/L all year
001FluoreneMO AVG <= 19 ug/L all year
001FluoreneDAILY MX <= 47 ug/L all year
001HexachlorobutadieneMO AVG <= 142 ug/L all year
001HexachlorobutadieneDAILY MX <= 380 ug/L all year
001HexachloroethaneMO AVG <= 196 ug/L all year
001HexachloroethaneDAILY MX <= 794 ug/L all year
001Methyl chloride [Chloromethane]MO AVG <= 110 ug/L all year
001Methyl chloride [Chloromethane]DAILY MX <= 295 ug/L all year
001Methylene chlorideMO AVG <= 36 ug/L all year
001Methylene chlorideDAILY MX <= 170 ug/L all year
001NitrobenzeneMO AVG <= 2237 ug/L all year
001NitrobenzeneDAILY MX <= 6402 ug/L all year
001PhenanthreneMO AVG <= 19 ug/L all year
001PhenanthreneDAILY MX <= 47 ug/L all year
001PyreneMO AVG <= 20 ug/L all year
001PyreneDAILY MX <= 48 ug/L all year
001TetrachloroethyleneMO AVG <= 52 ug/L all year
001TetrachloroethyleneDAILY MX <= 164 ug/L all year
0011,1-DichloroethaneMO AVG <= 22 ug/L all year
0011,1-DichloroethaneDAILY MX <= 59 ug/L all year
0011,1-DichloroethyleneMO AVG <= 22 ug/L all year
0011,1-DichloroethyleneDAILY MX <= 60 ug/L all year
0011,1,1-TrichloroethaneMO AVG <= 22 ug/L all year
0011,1,1-TrichloroethaneDAILY MX <= 59 ug/L all year
0011,1,2-TrichloroethaneMO AVG <= 32 ug/L all year
0011,1,2-TrichloroethaneDAILY MX <= 127 ug/L all year
001Benzo[a]anthraceneMO AVG <= 19 ug/L all year
001Benzo[a]anthraceneDAILY MX <= 47 ug/L all year
0011,2-DichlorobenzeneMO AVG <= 196 ug/L all year
0011,2-DichlorobenzeneDAILY MX <= 794 ug/L all year
0011,2-DichloropropaneMO AVG <= 196 ug/L all year
0011,2-DichloropropaneDAILY MX <= 794 ug/L all year
001trans-1,2-DichloroethyleneMO AVG <= 25 ug/L all year
001trans-1,2-DichloroethyleneDAILY MX <= 66 ug/L all year
0011,2,4-TrichlorobenzeneMO AVG <= 196 ug/L all year
0011,2,4-TrichlorobenzeneDAILY MX <= 794 ug/L all year
0011,3-DichlorobenzeneMO AVG <= 142 ug/L all year
0011,3-DichlorobenzeneDAILY MX <= 380 ug/L all year
0011,4-DichlorobenzeneMO AVG <= 142 ug/L all year
0011,4-DichlorobenzeneDAILY MX <= 380 ug/L all year
0012-NitrophenolMO AVG <= 65 ug/L all year
0012-NitrophenolDAILY MX <= 231 ug/L all year
0012,4-DimethylphenolMO AVG <= 19 ug/L all year
0012,4-DimethylphenolDAILY MX <= 47 ug/L all year
0012,4-DinitrophenolMO AVG <= 1207 ug/L all year
0012,4-DinitrophenolDAILY MX <= 4291 ug/L all year
0014-NitrophenolMO AVG <= 162 ug/L all year
0014-NitrophenolDAILY MX <= 57 ug/L all year
0014,6-Dinitro-o-cresolMO AVG <= 78 ug/L all year
0014,6-Dinitro-o-cresolDAILY MX <= 277 ug/L all year
001PhenolMO AVG <= 19 ug/L all year
001PhenolDAILY MX <= 47 ug/L all year
001NaphthaleneMO AVG <= 19 ug/L all year
001NaphthaleneDAILY MX <= 47 ug/L all year
001Di[2-ethylhexyl] phthalate [DEHP]MO AVG <= 95 ug/L all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 258 ug/L all year
001Di-n-butyl phthalateMO AVG <= 20 ug/L all year
001Di-n-butyl phthalateDAILY MX <= 43 ug/L all year
001Vinyl chlorideMO AVG <= 97 ug/L all year
001Vinyl chlorideDAILY MX <= 172 ug/L all year
001TrichloroethyleneMO AVG <= 26 ug/L all year
001TrichloroethyleneDAILY MX <= 69 ug/L all year
001HexachlorobenzeneMO AVG <= 196 ug/L all year
001HexachlorobenzeneDAILY MX <= 794 ug/L all year
001Flow, in conduit or thru treatment plantMO GEOMN report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
0011,3-DichloropropyleneMO AVG <= 196 ug/L all year
0011,3-DichloropropyleneDAILY MX <= 794 ug/L all year
001Coliform, fecal generalMO AVG <= 200 #/100mL all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL all year
001ChloroethaneMO AVG <= 110 ug/L all year
001ChloroethaneDAILY MX <= 295 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