CHEMICALS INCORPORATED

NPDES permit TX0118427 · Minor NON-POTW · effective, expires 2031-06-12 · 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 11 forms filed late

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

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among TX permits in EPA's filings — check your permit).

Limits in force (23)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 250 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]DAILY AV <= 22 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY AV <= .013 mg/L all year
001Chromium, hexavalent [as Cr]DAILY MX <= .028 mg/L all year
001Copper, total [as Cu]DAILY AV <= .0121 mg/L all year
001Copper, total [as Cu]DAILY MX <= .0255 mg/L all year
001Silver, total [as Ag]DAILY AV <= .0156 mg/L all year
001Silver, total [as Ag]DAILY MX <= .033 mg/L all year
001Zinc, total [as Zn]DAILY MX report only all year
001Selenium, total [as Se]DAILY AV <= .016 mg/L all year
001Selenium, total [as Se]DAILY MX <= .035 mg/L all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX <= .39 MGD all year
001E. coliDAILY AV report only all year
001E. coliDAILY MX report only all year
001Mercury, total [as Hg]DAILY AV <= .000138 mg/L all year
001Mercury, total [as Hg]DAILY MX <= .000293 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY AV <= 18 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only 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