Almeda Sims WWTP
12319 1/2 Almeda Rd, Houston, TX 77045 · Harris County · Publicly Owned Treatment Works
- Average flow
- 18.59 MGD
- Design flow
- 28 MGD
- NPDES permit
- TX0034924
- Effective
- Permit expires
- March 2030
- Population served
- 125,465
- CWNS 2022
Almeda Sims WWTP is a publicly owned wastewater treatment works in Houston, Harris County, Texas treating an average of 18.59 million gallons per day against a permitted design capacity of 28 MGD, serving about 125,465 residents. It discharges under NPDES permit TX0034924 (effective), which expires in March 2030, with 16 recorded violations in the last three years. EPA has recorded 5 formal enforcement actions naming the plant, the latest in April 2021.
Treatment technology
One treatment structure or unit process identified at Almeda Sims WWTP.
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See the full treatment train at Almeda Sims WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 16
- Effluent violations
- 16
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Almeda Sims WWTP in EPA's ICIS system.
- Formal actions
- 5
- 0 since FY2020
- Penalties assessed
- $4.4M
- all cases
- Compliance actions
- $2,000M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2021
Houston, City of
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · The case also names 7 other plants, and its amounts cover all of them
EPA's description of the case:
“**VIOLATIONS: 1) Discharging pollutants from its facilities that exceeded permitted effluent limitations; and 2) Incomplete or no NCRs. **RELIEF SOUGHT: a) Within 30 days, submit the required NCRs;…”
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Source: EPA ECHO, civil enforcement case 06-2002-1873.
Full case history with a free Klarifi account
Every action against Almeda Sims WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Houston
Houston's capital improvement plan lists 22 water, sewer and wastewater line items worth $1.3B starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in Houston →
| Project | Budget | Years |
|---|---|---|
| Wastewater Treatment Plant Improvements | $353,943,200 | 2025–2025 |
| Wastewater Treatment Plant Consolidation | $166,807,000 | 2025–2025 |
| Surface Water Transmission Program | $132,740,144 | 2025–2025 |
| Neighborhood Sewer Rehab Program | $96,000,000 | 2025–2025 |
| Pump Station Program | $87,851,600 | 2025–2025 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
41 verified contacts for Almeda Sims WWTP, with validated emails and direct phone numbers.
Unlock 41 verified contacts (38 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Almeda Sims WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Bellaire · 1 mi away
0.68 MGD
Pearland · 3 mi away
3.71 MGD
Houston · 4 mi away
0.92 MGD
Houston · 4 mi away
9.12 MGD
Pearland · 4 mi away
0.71 MGD
Houston · 5 mi away
55 MGD
Bellaire · 5 mi away
2.66 MGD
Houston · 5 mi away
0.21 MGD
Almeda Sims 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 · Biological nutrient removal · Tertiary treatment · all terms