Olin Corporation Alkali Products and Vinyls

NPDES permit AL0001945 · Major NON-POTW · administratively continued, expires 2025-08-31 · 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 2025-08-31 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

0values over a limit
0required values missing, on 0 form(s)
0of 56 forms filed late

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

Reporting

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

Limits in force (62)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 8.5 SU all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]DAILY MX 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
001Toxicity [acute], Ceriodaphnia dubiaSINGSAMP <= 0 pass=0;fail=1 all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]SINGSAMP <= 0 pass=0;fail=1 all year
001Solids, total dissolvedMO AVG <= 375000 lb/d all year
001Solids, total dissolvedDAILY MX <= 632000 lb/d all year
001Mercury, total recoverableMO AVG report only all year
001Mercury, total recoverableDAILY MX report only all year
001Mercury, total recoverableMO AVG <= .065 lb/d all year
001Mercury, total recoverableDAILY MX <= .25 lb/d all year
002pHDAILY MN report only all year
002pHDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Solids, total dissolvedDAILY MX report only all year
002Mercury, total recoverableDAILY MX report only all year
003pHDAILY MN report only all year
003pHDAILY MX report only all year
003Solids, total suspendedDAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Solids, total dissolvedDAILY MX report only all year
003Mercury, total recoverableDAILY MX report only all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedDAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Solids, total dissolvedDAILY MX report only all year
004Mercury, total recoverableDAILY MX report only all year
005pHDAILY MN report only all year
005pHDAILY MX report only all year
005Solids, total suspendedDAILY MX report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Solids, total dissolvedDAILY MX report only all year
005Mercury, total recoverableDAILY MX report only all year
006pHDAILY MN report only all year
006pHDAILY MX report only all year
006Solids, total suspendedDAILY MX report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Solids, total dissolvedDAILY MX report only all year
006Mercury, total recoverableDAILY MX report only all year
01ASolids, total suspendedMO AVG <= 858 lb/d all year
01ASolids, total suspendedDAILY MX <= 1823 lb/d all year
01ACopper, total [as Cu]MO AVG <= 4 lb/d all year
01ACopper, total [as Cu]DAILY MX <= 20.2 lb/d all year
01ALead, total [as Pb]MO AVG <= 6 lb/d all year
01ALead, total [as Pb]DAILY MX <= 9.9 lb/d all year
01ANickel, total [as Ni]MO AVG <= 6.2 lb/d all year
01ANickel, total [as Ni]DAILY MX <= 16.3 lb/d all year
01AFlow, in conduit or thru treatment plantMO AVG report only all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01AChlorine, total residualMO AVG <= 13.3 lb/d all year
01AChlorine, total residualDAILY MX <= 21.9 lb/d 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