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Musket Corporation

Chemicals & Allied Products, Elmendorf, Texas. NPDES permit TX0144894, in force until Mar 19, 2030. Last 12 months: no values over a limit, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (8 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 1 value over a limit, 0 required values missing, 1 of 6 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
pH	monthly minimum	≥ 6 SU	all year
pH	monthly maximum	≤ 9 SU	all year
Sulfate, total [as SO4]	daily average	≤ 1279 mg/L	all year
Sulfate, total [as SO4]	daily maximum	≤ 2705 mg/L	all year
Flow, in conduit or thru treatment plant	daily average	≤ .0079 MGD	all year
Flow, in conduit or thru treatment plant	daily maximum	≤ .02592 MGD	all year
Solids, total dissolved	daily average	≤ 4079 mg/L	all year
Solids, total dissolved	daily maximum	≤ 8629 mg/L	all year

How strict are these limits?

Solids, total dissolved, daily maximum 8629 mg/L — stricter than 42% of 35 other minor industrial and other permits in Texas
Sulfate, total [as SO4], daily maximum 2705 mg/L — stricter than 39% of 280 other minor industrial and other permits nationwide

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/TX0144894 · MCP: https://passage-data.com/mcp