Occidental Chemical Corporation

NPDES permit TN0081361 · Major NON-POTW · effective, expires 2028-12-31 · 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

7values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (7).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among TN permits in EPA's filings — check your permit).

Limits in force (32)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Chloride [as Cl]DAILY MX report only all year
001Chloride [as Cl]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]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
001Solids, total dissolvedMO AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedMO AVG <= 157167 lb/d all year
001Solids, total dissolvedDAILY MX <= 157167 lb/d all year
001pH range excursions, > 60 minutesVALUE <= 0 occur/mo all year
001pH range excursions, monthly total accumVALUE < 446 min all year
001LC50 Static 48Hr Acute Ceriodaphnia dubiaMINIMUM >= 2 % all year
001LC50 Static 48Hr Acute Pimephales promelasMINIMUM >= 2 % all year
01ASolids, total suspendedMO AVG <= 419 lb/d all year
01ASolids, total suspendedDAILY MX <= 629 lb/d all year
01AChloride [as Cl]MO AVG <= 75475 lb/d all year
01AChloride [as Cl]DAILY MX <= 79956 lb/d all year
01ASulfate, total [as SO4]MO AVG <= 66040 lb/d all year
01ASulfate, total [as SO4]DAILY MX <= 66040 lb/d all year
01ANickel, total [as Ni]MO AVG <= 2.6 lb/d all year
01ANickel, total [as Ni]DAILY MX <= 5.2 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 <= .5 mg/L all year
01AChlorine, total residualDAILY MX <= .5 mg/L all year
01AChlorine, total residualMO AVG <= 1 lb/d all year
01AChlorine, total residualDAILY MX <= 1 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