CHEVRON PHILLIPS CHEMICAL COMPANY LP

NPDES permit TX0007587 · Minor NON-POTW · effective, expires 2030-07-29 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 22 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 (26)

OutfallParameterStatisticLimitMonths
001Flow rateDAILY AV report only all year
001Flow rateDAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Oil & GreaseDAILY AV <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Carbon, tot organic [TOC]DAILY AV <= 20 mg/L all year
001Carbon, tot organic [TOC]DAILY MX <= 30 mg/L all year
001Cyanide, free [as free]DAILY AV report only all year
001Cyanide, free [as free]DAILY MX report only all year
001Discharge flow as % of stream flowDAILY AV <= 5 % all year
001Discharge flow as % of stream flowDAILY MX <= 5 % all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Oil & GreaseDAILY AV <= 10 mg/L all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Carbon, tot organic [TOC]DAILY AV <= 20 mg/L all year
004Carbon, tot organic [TOC]DAILY MX <= 30 mg/L all year
004Cyanide, free [as free]DAILY AV report only all year
004Cyanide, free [as free]DAILY MX report only all year
004Discharge flow as % of stream flowDAILY AV <= 50 % all year
004Discharge flow as % of stream flowDAILY MX <= 50 % all year
004Flow, in conduit or thru treatment plantDAILY AV report only all year
004Flow, in conduit or thru treatment plantDAILY 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