Slayter Creek WWTP
Anna, TX · Collin County · Publicly Owned Treatment Works
- Average flow
- 0.49 MGD
- Design flow
- 0.25 MGD
- NPDES permit
- TX0056677
- Effective
- Permit expires
- November 2026
- Population served
- 7,987
- CWNS 2022
Slayter Creek WWTP is a publicly owned wastewater treatment works in Anna, Collin County, Texas treating an average of 0.49 million gallons per day against a permitted design capacity of 0.25 MGD, serving about 7,987 residents. Treatment on site includes clarifiers. It discharges under NPDES permit TX0056677 (effective), which expires in November 2026, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Slayter Creek WWTP.
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Mckinney · 5 mi away
0.04 MGD
Van Alstyne · 6 mi away
0.98 MGD
Blue Ridge · 9 mi away
0.1 MGD
Gunter · 11 mi away
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Celina · 13 mi away
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Gunter · 13 mi away
—
Tom Bean · 14 mi away
0.18 MGD
Mc Kinney · 14 mi away
70.77 MGD
Slayter Creek 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 September 11, 2026; facility record last updated April 11, 2025.