City Of Rio Grande City WWTP

Rio Grande City, TX · Starr County · Publicly Owned Treatment Works

Average flow: 1.42 MGD

Design flow: 1.5 MGD

NPDES permit: 3604016788; Effective

Permit expires: June 2029

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Uncovered lagoons

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Biogas silos

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Compliance snapshot (last 3 years)

Total violations: 17

Effluent violations: 17

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

1 verified contact for City Of Rio Grande City WWTP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at City Of Rio Grande City WWTP — plus full compliance history and discharge data.

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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated March 2025.

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