Harpeth Valley Utility District STP
Nashville, TN · Davidson County · Publicly Owned Treatment Works
- Average flow
- 4.76 MGD
- Design flow
- 10 MGD
- NPDES permit
- TN0074748
- Effective
- Permit expires
- February 2030
- Population served
- 27,220
- CWNS 2022
Harpeth Valley Utility District STP is a publicly owned wastewater treatment works in Nashville, Davidson County, Tennessee treating an average of 4.76 million gallons per day against a permitted design capacity of 10 MGD, serving about 27,220 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TN0074748 (effective), which expires in February 2030, with 4 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
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Nashville
Nashville's capital improvement plan lists 36 water, sewer and wastewater line items worth $4.0B starting 2025–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Nashville →
| Project | Budget | Years |
|---|---|---|
| General Water Treatment Plant Replacement and Refurbishment | $1,040,256,000 | 2025–2030 |
| Clean Water Nashville | $750,000,000 | 2025–2030 |
| Water Distribution Projects | $667,000,000 | 2025–2030 |
| Biosolids and Odor Control | $441,478,200 | 2025–2030 |
| Dry Creek Wastewater Treatment Plant | $172,493,000 | 2025–2025 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Harpeth Valley Utility District STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Tennessee
Nashville · 4 mi away
21.51 MGD
Nashville · 8 mi away
88.2 MGD
Ashland City · 8 mi away
0.03 MGD
Kingston Springs · 11 mi away
0.09 MGD
Ashland City · 11 mi away
—
Ashland City · 12 mi away
—
Franklin · 14 mi away
7.12 MGD
Madison · 16 mi away
12.69 MGD
Harpeth Valley Utility District STP: 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 May 25, 2025.