Selbyville Wastewater Treatment Facility
37619 Wastewater Lane, Selbyville, DE 19975 · Sussex County · Publicly Owned Treatment Works
- Average flow
- 1.24 MGD
- Design flow
- —
- NPDES permit
- DE0020010
- Effective
- Permit expires
- April 2028
- Population served
- 2,459
- CWNS 2022
Selbyville Wastewater Treatment Facility is a publicly owned wastewater treatment works in Selbyville, Sussex County, Delaware treating an average of 1.24 million gallons per day, serving about 2,459 residents. It discharges under NPDES permit DE0020010 (effective), which expires in April 2028, with 1 recorded violation in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in August 2026.
Treatment technology
3 treatment structures and unit processes identified at Selbyville Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Selbyville Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
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 Selbyville Wastewater Treatment Facility 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 · Aug 2026
TOWN OF SELBYVILLE (SELBYVILLE WASTEWATER TREATMENT FACILITY)
Administrative order · CWA, Effluent Limitations - NPDES Toxic & Pretreatment Effluent Standards · Final Order No Penalty · Compliance actions $150,000
EPA's description of the case:
“On March 23, 2022, the Director of ECAD, Region 3, entered into an AOC with the Town of Selbyville ( Respondent ) for violations of its National Pollutant Discharge Elimination System ( NPDE ) Permit…”
Unlock EPA's full description by creating a free account on Klarifi. Create a free account →
Source: EPA ECHO, civil enforcement case 03-2022-0042.
Full case history with a free Klarifi account
Every action against Selbyville Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Selbyville Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Selbyville Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Delaware
Frankford · 8 mi away
4.37 MGD
Laurel · 20 mi away
0.5 MGD
Lewes · 22 mi away
1.29 MGD
Milton · 22 mi away
0.23 MGD
Seaford · 24 mi away
1.61 MGD
Port Penn · 75 mi away
0.04 MGD
Delaware City · 79 mi away
0.42 MGD
Selbyville Wastewater Treatment Facility: 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 · Lift station · Sludge dewatering · all terms