Tap Truth EPA drinking water records, in plain English

Public water system record

Nasa Wallops Flight Facility

Serves Oak Hall and Atlantic, Accomack County, VA · 1,625 people served

Federal records show 9 health-based violations and no monitoring/reporting issues for Nasa Wallops Flight Facility in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.

  • VA3001500
  • WALLOPS ISLAND
  • VA
  • 1,625 served

System profile

Source water Groundwater
ZIP 23337
EPA system ID VA3001500

Verify this system on EPA ECHO →

Health-based violations, last 10 years
9
Resolved
9
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Nasa Wallops Flight Facility draws water from 4 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 96 µg/L, federal limit 80 µg/L (1.2 times the limit), 2023.
  • Record on file since 1992, with 10 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 27 unknown out of 115 service lines.

Check whether Nasa Wallops Flight Facility serves your address

Address suggestions by Mapbox

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
Groundwater Rule
Treatment technique failure
 140 Nov 1, 2023 Resolved No
Groundwater Rule
Treatment technique failure
 140 Sep 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 90 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Jul 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 96 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Apr 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 90 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Jan 1, 2023 Resolved No
Groundwater Rule
Treatment technique failure
 140 Dec 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Oct 1, 2022 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 1, 2021 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 1, 2017 Resolved No

Full record since 1992

EPA's records for Nasa Wallops Flight Facility go back to 1992. Before October 19, 2016 they list 10 health-based violations (8 resolved, 2 archived by EPA without a recorded fix) and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 0
2000s 0 1
2010 to October 18, 2016 8 1
October 19, 2016 to 2019 1 0
2020s 8 0

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began April 2012, Resolved.

Show all 10 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Apr 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jul 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jan 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2010 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2010 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Sep 1, 1994 Archived
Total Coliform (acute)
Contaminant limit exceeded
 Jul 1, 1992 Archived

What the violations mean

Groundwater Rule

5 incidents

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Total Trihalomethanes (TTHMs)

4 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Nasa Wallops Flight Facility draws water from 4 wells.

Annual water quality report

Nasa Wallops Flight Facility 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 Virginia.

Certified drinking water labs by state EPA guidance for private wells