Quantico Mcb-Camp Barrett, VA
Lead detected, under the action levels
Latest 90th-percentile lead: 3.8 ppb (monitoring period 2023-2025). 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.
About Quantico Mcb-Camp Barrett
Quantico Mcb-Camp Barrett serves about 8,689 people through 124 service connections, which makes it a medium-sized system under EPA's size classes. It is federally owned and draws surface water, in Prince William County, Virginia. EPA system ID: VA6153060; phone on file: 703-784-1497. They can tell you what your service line is made of and whether they pay to replace it.
Quantico Mcb-Camp Barrett's lead record
Against the period ending 2025 (3.3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Quantico Mcb-Camp Barrett is 7 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3.8 ppb |
| 2025 | 3.3 ppb |
| 2022 | 0 (not detected) |
| 2019 | 7 ppb |
| 2019 | 7 ppb |
| 2019 | 7 ppb |
| 2016 | 2 ppb |
How Quantico Mcb-Camp Barrett compares
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. Quantico Mcb-Camp Barrett's 3.8 ppb sits at the 87th percentile in Virginia and the 86th nationally (higher means more lead).
Neighbouring systems
10 other systems share Prince William County; 1 of them has a higher latest lead result than Quantico Mcb-Camp Barrett. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pwcsa - East | 168,747 | 0 (not detected) |
| Pwcsa - West | 136,409 | 0 (not detected) |
| Dale City | 72,062 | 0 (not detected) |
| Mcb Quantico - Mainside | 19,000 | 1.98 ppb |
| Bull Run Mountain/Evergreen (Brme) | 1,803 | 2.27 ppb |
| Quantico, Town Of | 650 | 0 (not detected) |
| Linton Hall School | 350 | 0 (not detected) |
| Woodbridge Mhp Llc | 320 | 7.3 ppb |
| Pwcsa - Hoadly Manor | 207 | 0 (not detected) |
| Pwcsa - Carters Grove | 105 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Quantico, 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 Quantico Mcb-Camp Barrett 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. Size matters more than most people expect: small vs large water systems.