City Of Leander WWTF
10201 Fm 2243, Leander, TX 78641 · Williamson County · Publicly Owned Treatment Works
- Average flow
- 2.7 MGD
- Design flow
- 4.25 MGD
- NPDES permit
- TX0092151
- Effective
- Permit expires
- May 2031
- Population served
- 12,733
- CWNS 2022
City Of Leander WWTF is a publicly owned wastewater treatment works in Leander, Williamson County, Texas treating an average of 2.7 million gallons per day against a permitted design capacity of 4.25 MGD, serving about 12,733 residents. It discharges under NPDES permit TX0092151 (effective), which expires in May 2031, with 25 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in February 2026.
Treatment technology
2 treatment structures and unit processes identified at City Of Leander WWTF.
Available with a free Klarifi account
See the full treatment train at City Of Leander WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 25
- Effluent violations
- 25
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 City Of Leander WWTF in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $80,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Feb 2026
Leander, City of
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $80,000
EPA's description of the case:
“On February 18, 2026, EPA Region 6 issued an Administrative Order (AO) under its authority pursuant to Section 309 of the Clean Water Act to Leander, City of, WWTF. The AO was issued in response to…”
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Source: EPA ECHO, civil enforcement case 06-2026-1750.
Full case history with a free Klarifi account
Every action against City Of Leander WWTF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
11 verified contacts for City Of Leander WWTF, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at City Of Leander WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Cedar Park · 6 mi away
2.48 MGD
Round Rock · 11 mi away
1.22 MGD
Georgetown · 12 mi away
3.58 MGD
Round Rock · 14 mi away
28.7 MGD
Georgetown · 14 mi away
0.04 MGD
Georgetown · 15 mi away
3.14 MGD
Austin · 17 mi away
0.45 MGD
Pflugerville · 18 mi away
6 MGD
City Of Leander WWTF: 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 January 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms