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Space Exploration Technologies Corp

Guided Missiles And Space Vehicles, Brownsville, Texas. NPDES permit TX0146251, in force until Feb 18, 2030. Last 12 months: over a limit 4 times (last June 2026), 2 required values missing, 3 of 32 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (9 values), outfall 002 form A monthly (9 values), outfall 001 form Q quarterly, outfall 002 form Q quarterly
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 53 required values missing, 10 of 18 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
October 2025Oxygen demand, chem. [high level] [COD], daily maximum765 mg/L≤ 200 mg/L283%
December 2025Oxygen demand, chem. [high level] [COD], daily maximum270 mg/L≤ 200 mg/L35%
January 2026Oxygen demand, chem. [high level] [COD], daily maximum1370 mg/L≤ 200 mg/L585%
June 2026Oxygen demand, chem. [high level] [COD], daily maximum696 mg/L≤ 200 mg/L248%

Limits in force (26)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Oxygen demand, chem. [high level] [COD]daily averagereport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Oil & Greasedaily averagereport only (mg/L)all year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Thallium, total [as Tl]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)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
Mercury, total [as Hg]daily maximumreport only (mg/L)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Oxygen demand, chem. [high level] [COD]daily averagereport only (mg/L)all year002
Oxygen demand, chem. [high level] [COD]daily maximum≤ 200 mg/Lall year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Oil & Greasedaily averagereport only (mg/L)all year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Thallium, total [as Tl]daily maximumreport only (mg/L)all year002
Zinc, total [as Zn]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Mercury, total [as Hg]daily maximumreport only (mg/L)all year002

How strict are these limits?

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

Same industry: the 8 Transportation Equipment 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/TX0146251 · MCP: https://passage-data.com/mcp