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Aransas Pass WWTP

527 Ransom Island Rd, Aransas Pass, TX 78336 · San Patricio County · Publicly Owned Treatment Works

Average flow
1.45 MGD
Design flow
1.6 MGD
NPDES permit
TX0025682
Effective
Permit expires
September 2029
Population served
9,607
CWNS 2022

Aransas Pass WWTP is a publicly owned wastewater treatment works in Aransas Pass, San Patricio County, Texas treating an average of 1.45 million gallons per day against a permitted design capacity of 1.6 MGD, serving about 9,607 residents. It discharges under NPDES permit TX0025682 (effective), which expires in September 2029, with 39 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in May 2020.

Treatment technology

2 treatment structures and unit processes identified at Aransas Pass WWTP.

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Compliance snapshot (last 3 years)

Total violations
39
Effluent violations
33

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 Aransas Pass WWTP in EPA's ICIS system.

Formal actions
2
0 since FY2020
Compliance actions
$15,000
required by EPA orders
EPA inspections
0
none on record

Latest case · May 2020

City of Aransas Pass

Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $10,000

EPA's description of the case:

“The Aransas Pass order was issued for permit violations. A corrective action plan is required.”

Source: EPA ECHO, civil enforcement case 06-2019-1812.

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Every action against Aransas Pass WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

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Key contacts

Decision-makers at Aransas Pass WWTP.

No verified contacts on file yet

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Nearby wastewater treatment plants in Texas

City Of Ingleside WWTP

Ingleside · 4 mi away

1.2 MGD

North Mustang Island WWTP

Port Aransas · 6 mi away

1.6 MGD

Gregory STP

Gregory · 10 mi away

0.26 MGD

1.76 MGD

City Of Taft Baird WWTF

Taft · 15 mi away

0.51 MGD

0.0041 MGD

Laguna Madre WWTP

Corpus Christi · 17 mi away

2.28 MGD

City Of Corpus Christi

Corpus Christi · 17 mi away

4.83 MGD

Aransas Pass 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 · Sludge dewatering · Biological nutrient removal · all terms


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