Sevierville (mccroskey Island) STP
2295 Mccroskey Island Road, Sevierville, TN 37876 · Sevier County · Publicly Owned Treatment Works
- Average flow
- 4.74 MGD
- Design flow
- 4.8 MGD
- NPDES permit
- TN0063959
- Effective
- Permit expires
- April 2030
- Population served
- 17,185
- CWNS 2022
Sevierville (mccroskey Island) STP is a publicly owned wastewater treatment works in Sevierville, Sevier County, Tennessee treating an average of 4.74 million gallons per day against a permitted design capacity of 4.8 MGD, serving about 17,185 residents. It discharges under NPDES permit TN0063959 (effective), which expires in April 2030, with 115 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in January 2025.
Treatment technology
2 treatment structures and unit processes identified at Sevierville (mccroskey Island) STP.
Available with a free Klarifi account
See the full treatment train at Sevierville (mccroskey Island) STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 115
- Effluent violations
- 100
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Sevierville (mccroskey Island) STP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $150,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jan 2025
THE CITY OF SEVIERVILLE (MCCROSKEY ISLAND) SEWAGE TREATMENT PLANT
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $150,000
Source: EPA ECHO, civil enforcement case 04-2024-1022.
Full case history with a free Klarifi account
Every action against Sevierville (mccroskey Island) STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
4 verified contacts for Sevierville (mccroskey Island) STP, with validated emails and direct phone numbers.
Unlock 4 verified contacts (1 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Sevierville (mccroskey Island) STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Tennessee
Strawberry Plains · 10 mi away
0.0036 MGD
Mascot · 12 mi away
0.42 MGD
Dandridge · 12 mi away
0.31 MGD
Gatlinburg · 14 mi away
2.29 MGD
Jefferson City · 15 mi away
0.85 MGD
Dandridge · 17 mi away
0.002 MGD
Gatlinburg · 18 mi away
0.12 MGD
Luttrell · 20 mi away
0.11 MGD
Sevierville (mccroskey Island) 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 October 26, 2026; facility record last updated October 10, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms