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Chevron Phillips Chemical Company LP

Petroleum Bulk Stations & Terminals, Sweeny, Texas. NPDES permit TX0007587, in force until Jul 29, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (14 values), outfall 004 form A monthly (12 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 30 reports late

Limits in force (26)

ParameterStatisticLimitMonthsOutfall
Flow ratedaily averagereport only (MGD)all year001
Flow ratedaily maximumreport only (MGD)all year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Oil & Greasedaily average≤ 10 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Carbon, tot organic [TOC]daily average≤ 20 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 30 mg/Lall year001
Cyanide, free [as free]daily averagereport only (mg/L)all year001
Cyanide, free [as free]daily maximumreport only (mg/L)all year001
Discharge flow as % of stream flowdaily average≤ 5 %all year001
Discharge flow as % of stream flowdaily maximum≤ 5 %all year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
pHminimum≥ 6.5 SUall year004
pHmaximum≤ 9 SUall year004
Oil & Greasedaily average≤ 10 mg/Lall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Carbon, tot organic [TOC]daily average≤ 20 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 30 mg/Lall year004
Cyanide, free [as free]daily averagereport only (mg/L)all year004
Cyanide, free [as free]daily maximumreport only (mg/L)all year004
Discharge flow as % of stream flowdaily average≤ 50 %all year004
Discharge flow as % of stream flowdaily maximum≤ 50 %all year004
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004

New limits from Aug 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Cyanide, free [as free], daily average outfall 0010.016 mg/Lnew0.00225 mg/L (4 values, 1 below detection)0.141×
Cyanide, free [as free], daily maximum outfall 0010.033 mg/Lnew0.0026 mg/L (4 values, 1 below detection)0.0788×
Cyanide, free [as free], daily average outfall 0040.0088 mg/Lnew——
Cyanide, free [as free], daily maximum outfall 0040.0185 mg/Lnew——

How strict are these limits?

Cited limits by parameter: Texas's rules and the federal ones.

Same industry: the 20 Wholesale Trade — Nondurable Goods permits in Texas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0007587 · MCP: https://passage-data.com/mcp