Morton Salt Inc - Weeks Island Facility

NPDES permit LA0003271 · Minor NON-POTW · effective, expires 2027-12-14 · 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
0required values missing, on 0 form(s)
0of 47 forms filed late

Last period with anything received: 2026-06-30.

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 (104)

OutfallParameterStatisticLimitMonths
001pHINST MIN report only all year
001pHINST MAX report only all year
001Solids, total suspendedMO AVG <= 4336 lb/d all year
001Solids, total suspendedDAILY MX <= 8676 lb/d all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Whole effluent toxicity - retest #17 DA MIN report only all year
001Whole effluent toxicity - retest #17 DA MIN report only all year
001Whole effluent toxicity - retest #1MO AV MN report only all year
001Whole effluent toxicity - retest #1MO AV MN report only all year
001Whole effluent toxicity - retest #27 DA MIN report only all year
001Whole effluent toxicity - retest #27 DA MIN report only all year
001Whole effluent toxicity - retest #2MO AV MN report only all year
001Whole effluent toxicity - retest #2MO AV MN report only all year
001WET, sublethal retest #17 DA MIN report only all year
001WET, sublethal retest #17 DA MIN report only all year
001WET, sublethal retest #1MO AV MN report only all year
001WET, sublethal retest #1MO AV MN report only all year
001WET, sublethal retest #27 DA MIN report only all year
001WET, sublethal retest #27 DA MIN report only all year
001WET, sublethal retest #2MO AV MN report only all year
001WET, sublethal retest #2MO AV MN report only 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
001Whole Effluent Toxicity - Retest #37 DA MIN report only all year
001Whole Effluent Toxicity - Retest #37 DA MIN report only all year
001Whole Effluent Toxicity - Retest #3MO AV MN report only all year
001Whole Effluent Toxicity - Retest #3MO AV MN report only all year
001Whole Effluent Toxicity, Sub-Lethal Retest #37 DA MIN report only all year
001Whole Effluent Toxicity, Sub-Lethal Retest #37 DA MIN report only all year
001Whole Effluent Toxicity, Sub-Lethal Retest #3MO AV MN report only all year
001Whole Effluent Toxicity, Sub-Lethal Retest #3MO AV MN report only all year
001pH range excursions, > 60 minutesDAILY MX <= 0 occur/mo all year
001pH range excursions, monthly total accumDAILY MX <= 446 min all year
001Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
001Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
001Pass/Fail Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
001Pass/Fail Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
001Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
001Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
001NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
001NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
001NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
001NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
001Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MAXIMUM report only all year
001Coef Of Var Static Renewal 7Day Chronic Menidia beryllinaMAXIMUM report only all year
002pHINST MIN >= 6 SU all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002pHINST MAX <= 9 SU all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
101ABOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
101ABOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
101ASolids, total suspendedMO AVG <= 30 mg/L all year
101ASolids, total suspendedDAILY MX <= 45 mg/L all year
101AFlow, in conduit or thru treatment plantMO AVG report only all year
101AFlow, in conduit or thru treatment plantDAILY MX report only all year
101AEnterococciMOAV GEO <= 35 #/100mL all year
101AEnterococciDAILY MX <= 135 #/100mL all year
101AColiform, fecal generalMOAV GEO <= 200 #/100mL all year
101AColiform, fecal generalDAILY MX <= 400 #/100mL all year
101BBOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
101BBOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
101BSolids, total suspendedMO AVG <= 30 mg/L all year
101BSolids, total suspendedDAILY MX <= 45 mg/L all year
101BFlow, in conduit or thru treatment plantMO AVG report only all year
101BFlow, in conduit or thru treatment plantDAILY MX report only all year
101BEnterococciMOAV GEO <= 35 #/100mL all year
101BEnterococciDAILY MX <= 135 #/100mL all year
101BColiform, fecal generalMOAV GEO <= 200 #/100mL all year
101BColiform, fecal generalDAILY MX <= 400 #/100mL all year
101CBOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
101CBOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
101CSolids, total suspendedMO AVG <= 30 mg/L all year
101CSolids, total suspendedDAILY MX <= 45 mg/L all year
101CFlow, in conduit or thru treatment plantMO AVG report only all year
101CFlow, in conduit or thru treatment plantDAILY MX report only all year
101CEnterococciMOAV GEO <= 35 #/100mL all year
101CEnterococciDAILY MX <= 135 #/100mL all year
101CColiform, fecal generalMOAV GEO <= 200 #/100mL all year
101CColiform, fecal generalDAILY MX <= 400 #/100mL all year
101DBOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
101DBOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
101DSolids, total suspendedMO AVG <= 30 mg/L all year
101DSolids, total suspendedDAILY MX <= 45 mg/L all year
101DFlow, in conduit or thru treatment plantMO AVG report only all year
101DFlow, in conduit or thru treatment plantDAILY MX report only all year
101DEnterococciMOAV GEO <= 35 #/100mL all year
101DEnterococciDAILY MX <= 135 #/100mL all year
101DColiform, fecal generalMOAV GEO <= 200 #/100mL all year
101DColiform, fecal generalDAILY MX <= 400 #/100mL 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