Black Stump, VA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Black Stump
Black Stump serves about 73 people through 35 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Lancaster County, Virginia. EPA system ID: VA4103130; phone on file: 804-749-8868. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 3.2 ppb from 3.2 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Black Stump is 3.2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 3.2 ppb |
| 2021 | 2.3 ppb |
| 2020 | 0.68 ppb |
How Black Stump 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. Black Stump's reported as 0 (not detected) sits at the 9th percentile in Virginia and the 6th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
26 other systems share Lancaster County; 20 of them have a higher latest lead result than Black Stump. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Kilmarnock, Town Of | 1,500 | 6.1 ppb |
| Irvington Community Of | 1,056 | 2.02 ppb |
| White Stone | 825 | 0 (not detected) |
| Weems | 678 | 1.98 ppb |
| Rappahannock Westminster Canterbury | 461 | 1.24 ppb |
| Lively, Community Of | 398 | 1.5 ppb |
| Corrotoman By The Bay | 358 | 2 ppb |
| Foxwells | 218 | 0.82 ppb |
| Heritage Point | 187 | 0 (not detected) |
| Lancaster Courthouse | 125 | 1 ppb |
Next steps for Rockville, VA
Look up your address in Black Stump's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Black Stump 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. A zero today does not rule out a jump later - the rules are tightening in 2027.