Slab Creek Wastewater Treatment Plant
Boaz, AL · Marshall County · Publicly Owned Treatment Works
- Average flow
- 1.21 MGD
- Design flow
- 4.88 MGD
- NPDES permit
- AL0049603
- Administratively continued
- Permit expires
- June 2026
- Population served
- 9,551
- CWNS 2022
Slab Creek Wastewater Treatment Plant is a publicly owned wastewater treatment works in Boaz, Marshall County, Alabama treating an average of 1.21 million gallons per day against a permitted design capacity of 4.88 MGD, serving about 9,551 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit AL0049603 (administratively continued), which expires in June 2026, with 50 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 50
- Effluent violations
- 48
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Slab Creek Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Slab Creek Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Alabama
Albertville · 4 mi away
6.44 MGD
Guntersville · 11 mi away
2.78 MGD
Guntersville · 12 mi away
0.02 MGD
Altoona · 14 mi away
0.08 MGD
Crossville · 14 mi away
0.06 MGD
Altoona · 14 mi away
0.02 MGD
Gadsden · 17 mi away
4.15 MGD
Collinsville · 18 mi away
0.11 MGD
Slab Creek Wastewater Treatment Plant: 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 August 18, 2026.