Naval Support Activity-Nw, VA
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2021-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Naval Support Activity-Nw at a glance
Naval Support Activity-Nw serves about 1,400 people through 194 service connections, which makes it a small system under EPA's size classes. It is federally owned and draws groundwater. EPA system ID: VA3550620; phone on file: 757-836-1862. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Naval Support Activity-Nw's lead record
That is down 2 ppb from 5 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Naval Support Activity-Nw is 5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 3 ppb |
| 2020 | 5 ppb |
| 2017 | 1 ppb |
Against other Virginia systems
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. Naval Support Activity-Nw's 3 ppb sits at the 83rd percentile in Virginia and the 82nd nationally (higher means more lead).
Your move
Test your own tap with a certified lab first-draw sample; Norfolk, 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 Naval Support Activity-Nw 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. The action level is dropping - the 10 ppb rule from 2027.