MANVEL CBP, Manvel, TX: NPDES TXG113673 discharge permit, effluent exceedances, inspections, penalties

MANVEL CBP, Manvel, Texas: General permit coverage TXG113673, held by Texcon Concrete, LLC; Effective; issued April 17, 2024, term to November 6, 2026.

2 of the 20 pollutants listed for NPDES TXG113673 have no violation or effluent exceedance.

• pH: 4 limits, 64 violations of any kind.
• Solids, total suspended: 2 limits, 32 violations of any kind.
• Oil & Grease: 2 limits, 32 violations of any kind.
• Flow, in conduit or thru treatment plant: 2 limits, 32 violations of any kind.
• Arsenic, total [as As]: 2 limits, 2 violations of any kind.
• Barium, total [as Ba]: 2 limits, 2 violations of any kind.
• Cadmium, total [as Cd]: 2 limits, 2 violations of any kind.
• Chromium, total [as Cr]: 2 limits, 2 violations of any kind.
• Copper, total [as Cu]: 2 limits, 2 violations of any kind.
• Lead, total [as Pb]: 2 limits, 2 violations of any kind.
• Manganese, total [as Mn]: 2 limits, 2 violations of any kind.
• Nickel, total [as Ni]: 2 limits, 2 violations of any kind.
• Silver, total [as Ag]: 2 limits, 2 violations of any kind.
• Zinc, total [as Zn]: 2 limits, 2 violations of any kind.
• Selenium, total [as Se]: 2 limits, 2 violations of any kind.
• Mercury, total [as Hg]: 2 limits, 2 violations of any kind.
• LC50 Pass/Fail Static 24Hr Acute D. Pulex: 2 limits, 2 violations of any kind.
• LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 2 limits, 2 violations of any kind.
• Whole effluent toxicity - retest #1: 2 limits.
• Whole effluent toxicity - retest #2: 2 limits.

• October 13, 2026: Under Review (State).

Other permits held by Texcon Concrete, LLC

• FREEPORT CBP, Freeport: TXG113672, issued 2024-04-17
• KENDLETON CBP, Kendleton: TXG113762, issued 2024-10-18
• ALWAYS READY CONCRETE, Humble: TXG113763, issued 2024-10-18
• MAGNOLIA CBP, Magnolia: TXG113764, issued 2024-10-18
• OLDS PRESS & KO FORGE, Houston: TXG114016, issued 2026-01-12
• TEXAS CONCRETE ENTERPRISE BATCH PLANT, Houston: TXG114017, issued 2026-01-12
• CONROE CBP, Conroe: TXG114018, issued 2026-01-12

MANVEL CBP among its neighbors

288 discharge permits are in the Mustang Bayou subwatershed (HUC 120402040400); TXG113673 is one. Its county: 522, 24 major; TXG113673 is minor permit.

Other permits in the Mustang Bayou subwatershed (HUC 120402040400)

• 2006 MUSTANG CREEK DEVELOPMENT WWTP, Manvel: TXR1519OF, minor, term to 2028-03-04
• AAA STORAGE FM 521, Rosharon: TXR1522TW, minor, term to 2028-03-04
• AGUA ESTATES SUBDIVISION, Houston: TXR1585OK, minor, term to 2028-03-04
• ALAMO CONCRETE PRODUCTS, Iowa Colony: TXG113212, minor, term to 2026-11-06
• ALLDAY AUTO PARTS, Houston: TXR05GF67, minor, term to 2026-08-13
• ALLIED PETROCHEMICAL TEXAS, Alvin: TXR05FY24, minor, term to 2026-08-13
• ALVIN 1460 AC TRACT WWTP, Alvin: TX0147141
• ALVIN 350 WWTP, Alvin: TX0147761, minor, term to 2031-05-04
• ALVIN CHEMICAL, Alvin: TXRNECK50, minor, term to 2026-08-13
• ALVIN HIGH SCHOOL EXPANSION & RENOVATIONS, Alvin: TXR1554YD, minor, term to 2028-03-04