Brazoria County Mud 21 WWTP
600' North And 2000' E Ih 6 And Savannah Pkwy, Rosharon, TX 77583 · Brazoria County · Publicly Owned Treatment Works
- Average flow
- 0.88 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- TX0123633
- Effective
- Permit expires
- April 2030
- Population served
- 2,315
- CWNS 2022
Brazoria County Mud 21 WWTP is a publicly owned wastewater treatment works in Rosharon, Brazoria County, Texas treating an average of 0.88 million gallons per day against a permitted design capacity of 1.2 MGD, serving about 2,315 residents. It discharges under NPDES permit TX0123633 (effective), which expires in April 2030, with 5 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Brazoria County Mud 21 WWTP.
Available with a free Klarifi account
See the full treatment train at Brazoria County Mud 21 WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 5
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Brazoria County Mud 21 WWTP.
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Nearby wastewater treatment plants in Texas
Rosharon · 2 mi away
0.2 MGD
Arcola · 2 mi away
0.86 MGD
Manvel · 2 mi away
0.24 MGD
Manvel · 2 mi away
0.47 MGD
Brazoria County · 3 mi away
0.94 MGD
Fresno · 3 mi away
1.76 MGD
Rosharon · 3 mi away
0.59 MGD
Manvel · 4 mi away
0.23 MGD
Brazoria County Mud 21 WWTP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated May 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms