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Public water system record

Selbyville Water Department

Serves Selbyville, Sussex County, DE · 3,502 people served

Federal records show 2 health-based violations and no monitoring/reporting issues for Selbyville Water Department in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • DE0000654
  • SELBYVILLE
  • DE
  • 3,502 served

System profile

Source water Groundwater
ZIP 19975
EPA system ID DE0000654

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
2
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Selbyville Water Department draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 83.38 µg/L, federal limit 80 µg/L (at or just above the limit), 2020.
  • Record on file since 2001, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 1,440 unknown out of 2,690 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Oct 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83.38 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Jul 1, 2020 Resolved No

Full record since 2001

EPA's records for Selbyville Water Department go back to 2001. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
2000s 1 1
2010 to October 18, 2016 3 0
2020s 2 0

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2016, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91.3 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jan 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 123.8 µg/L, federal limit 80 µg/L (1.5 times the limit)
 Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87.3 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jul 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93.2 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Jul 1, 2008 Resolved

What the violations mean

Total Trihalomethanes (TTHMs)

2 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Selbyville Water Department draws water from 3 wells (1 of them for emergency, seasonal or other part-time use). It also buys water from Artesian Southern Sussex Regional. 1 other community water system buys water from Selbyville Water Department. 1 other public water system has an emergency connection to Selbyville Water Department.

Buys water from

Community systems that buy water from it

Annual water quality report

Selbyville Water Department must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Delaware.

Certified drinking water labs by state EPA guidance for private wells