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Capitol Aggregates, Inc

Cement, Hydraulic, San Antonio, Texas. NPDES permit TX0030040, in force until Feb 6, 2031. 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 (10 values), outfall 002 form A monthly (10 values), outfall 001 form Y yearly, outfall 002 form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 26 reports late

Limits in force (22)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 5.5 deg Fall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 250 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily maximum≤ 50 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
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximum≤ 5.5 deg Fall year002
Oxygen demand, chem. [high level] [COD]daily maximum≤ 250 mg/Lall year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendeddaily maximum≤ 50 mg/Lall 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

How strict are these limits?

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

Same industry: the 10 Stone, Clay, Glass and Concrete Products 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/TX0030040 · MCP: https://passage-data.com/mcp