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Ash Grove Cement Company

Cement, Hydraulic, Midlothian, Texas. NPDES permit TX0083437, in force until Nov 18, 2026. Last 12 months: over a limit 8 times (last July 2026), 4 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (14 values), outfall 101 form A monthly (12 values)
Renewal application due
May 22, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
17 values over a limit, 0 required values missing, 4 of 24 reports late

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

Period endingOutfallParameterReportedLimitOver by
October 2025001Solids, total suspended, daily average58.6 mg/L≤ 25 mg/L134%
October 2025001Solids, total suspended, daily maximum132 lb/d≤ 121 lb/d9%
October 2025001Solids, total suspended, daily maximum58.6 mg/L≤ 45 mg/L30%
April 2026101E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
April 2026101E. coli, daily maximum2420 CFU/100mL≤ 399 CFU/100mL507%
April 2026101pH, maximum9.6 SU≤ 9 SU—
May 2026101Solids, total suspended, daily average17.8 mg/L≤ 15 mg/L19%
July 2026101Chlorine, total residual, monthly minimum.9 mg/L≥ 1 mg/L10%

Limits in force (26)

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 maximum≤ 5.4 deg Fall year001
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 25 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Solids, total suspendeddaily maximum≤ 121 lb/dall year001
Carbon, tot organic [TOC]daily average≤ 75 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 95 mg/Lall year001
Flow, in conduit or thru treatment plantdaily average≤ .3 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Oxygen, dissolved [DO]minimum≥ 4 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily average≤ 10 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 25 mg/Lall year101
pHminimum≥ 6 SUall year101
pHmaximum≤ 9 SUall year101
Solids, total suspendeddaily average≤ 15 mg/Lall year101
Solids, total suspendeddaily maximum≤ 40 mg/Lall year101
Flow, in conduit or thru treatment plantdaily average≤ .006 MGDall year101
Flow, in conduit or thru treatment plantdaily maximum≤ .012 MGDall year101
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year101
E. colidaily average≤ 126 CFU/100mLall year101
E. colidaily maximum≤ 399 CFU/100mLall year101

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/TX0083437 · MCP: https://passage-data.com/mcp