City Of Deer Park
S/W Of La Porte Rd(St Hwy 225), Deer Park, TX 77536 · Harris County · Publicly Owned Treatment Works
- Average flow
- 6.44 MGD
- Design flow
- 6 MGD
- NPDES permit
- TX0025321
- Effective
- Permit expires
- July 2029
- Population served
- 32,410
- CWNS 2022
City Of Deer Park is a publicly owned wastewater treatment plant in Deer Park, Harris County, Texas treating an average of 6.44 million gallons per day against a permitted design capacity of 6 MGD, serving about 32,410 residents. It discharges under NPDES permit TX0025321 (effective), which expires in July 2029, with 15 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in August 2021.
Treatment technology
2 treatment structures and unit processes identified at City Of Deer Park.
Available with a free Klarifi account
See the full treatment train at City Of Deer Park: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 15
- Effluent violations
- 15
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 Deer Park in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $4,000
- required by EPA orders
- EPA inspections
- 1
- latest Feb 2025
Latest case · Aug 2021
City of Deer Park Admin Order
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $4,000
EPA's description of the case:
“The City of Deer Park was issued the order by EPA in conjunction with TCEQ agreement. The order covers effluent SNC violations. A corrective action plan is requested.”
Source: EPA ECHO, civil enforcement case 06-2020-1757.
Full case history with a free Klarifi account
Every action against City Of Deer Park with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
34 verified contacts for City Of Deer Park, with validated emails and direct phone numbers.
Unlock 34 verified contacts (31 more than shown)
Names, validated emails and direct phone numbers for decision-makers at City Of Deer Park, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Houston · 2 mi away
0.0077 MGD
Channelview · 5 mi away
—
Channelview · 5 mi away
5.71 MGD
Pasadena · 5 mi away
13.95 MGD
Channelview · 6 mi away
2.53 MGD
Houston · 6 mi away
6.48 MGD
Pasadena · 6 mi away
15.54 MGD
Houston · 7 mi away
0.47 MGD
City Of Deer Park: 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 August 13, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms