Nasa Wallops Flight Facility, VA
Exceeded the action level in the past
Latest 90th-percentile lead: 2.78 ppb (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Nasa Wallops Flight Facility
Nasa Wallops Flight Facility serves about 1,625 people through 115 service connections, which makes it a small system under EPA's size classes. It is federally owned and draws groundwater, in Accomack County, Virginia. EPA system ID: VA3001500; phone on file: 805-603-6767. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2024 (2.25 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Nasa Wallops Flight Facility is 59.8 ppb across 10 monitoring periods, 3 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.78 ppb |
| 2024 | 2.25 ppb |
| 2023 | 6.4 ppb |
| 2022 | 14.9 ppb over 10 |
| 2021 | 11 ppb over 10 |
| 2021 | 15.7 ppb over 15 |
| 2020 | 47.9 ppb over 15 |
| 2019 | 13.5 ppb over 10 |
| 2019 | 7.5 ppb |
| 2018 | 59.8 ppb over 15 |
Where this result ranks
Of the 996 Virginia systems with a lead result, the median latest reading is 0 ppb; 3 are over 15 ppb right now and 59 have gone over at some point. Nasa Wallops Flight Facility's 2.78 ppb sits at the 81st percentile in Virginia and the 79th nationally (higher means more lead).
Other water systems in Accomack County
11 other systems share Accomack County; 4 of them have a higher latest lead result than Nasa Wallops Flight Facility. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Chincoteague, Town Of | 3,344 | 6.59 ppb |
| Captains Cove | 2,380 | 1.74 ppb |
| Onancock, Town Of | 1,525 | 4.98 ppb |
| Virginia Landing | 975 | 0.8 ppb |
| Parksley, Town Of | 804 | 9.5 ppb |
| Trails End | 495 | 0.5 ppb |
| Tangier, Town Of | 393 | 0 (not detected) |
| Rolling Acres Subdivision | 170 | 3.53 ppb |
| Accomack Manor | 155 | 0 (not detected) |
| Triangle Enterprises Mhp | 152 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Wallops Island, VA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Nasa Wallops Flight Facility whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. Why an old exceedance still matters: over the limit before, under it now.