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Hfotco LLC

Special Warehousing And Storage, Houston, Texas. NPDES permit TX0031534, in force until Aug 14, 2028. 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 (11 values), outfall 021 form A monthly (9 values)
Renewal application due
Feb 16, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (20)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, chem. [high level] [COD]daily maximum≤ 200 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Zinc, total [as Zn]daily average≤ .225 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ .52 mg/Lall year001
Polynuclear Aromatic Hydrocarbons [PAHs]daily maximum≤ .01 mg/Lall year001
Benzene, ethylbenzene, toluene, xylene combinationdaily maximum≤ .1 mg/Lall 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
Hydrocarbons, total petroleumdaily maximum≤ 15 mg/Lall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 200 mg/Lall year021
pHminimum≥ 6 SUall year021
pHmaximum≤ 9 SUall year021
Oil & Greasedaily maximum≤ 15 mg/Lall year021
Polynuclear Aromatic Hydrocarbons [PAHs]daily maximum≤ .01 mg/Lall year021
Benzene, ethylbenzene, toluene, xylene combinationdaily maximum≤ .1 mg/Lall year021
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year021
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year021
Hydrocarbons, total petroleumdaily maximum≤ 15 mg/Lall year021

How strict are these limits?

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

Same industry: the 22 Motor Freight Transportation and Warehousing permits in Texas.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0031534 · MCP: https://passage-data.com/mcp