San Marcos WWTP
San Marcos, TX · Hays County · Publicly Owned Treatment Works
- Average flow
- 6.51 MGD
- Design flow
- 9 MGD
- NPDES permit
- 3604253884
- Effective
- Permit expires
- January 2030
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Carrousels / oxidation ditches
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Biogas silos
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 73
- Effluent violations
- 73
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
19 verified contacts for San Marcos WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at San Marcos WWTP — plus full compliance history and discharge data.
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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated April 2025.