Port Aransas, TX · Nueces County · Publicly Owned Treatment Works
North Mustang Island WWTP is a publicly owned wastewater treatment works in Port Aransas, Nueces County, Texas treating an average of 0.93 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 3,241 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0024287 (effective), which expires in June 2031, with 0 recorded violations in the last three years.
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
3 verified contacts for North Mustang Island WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at North Mustang Island WWTP, plus the full compliance history and discharge data.
Aransas Pass · 6 mi away
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Ingleside · 9 mi away
0.84 MGD
Rockport · 15 mi away
1.34 MGD
Gregory · 15 mi away
0.26 MGD
Corpus Christi · 16 mi away
2.52 MGD
Corpus Christi · 18 mi away
16.32 MGD
Corpus Christi · 19 mi away
1.35 MGD
Corpus Christi · 20 mi away
3.9 MGD
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 September 11, 2026; facility record last updated May 28, 2025.