Longdale Furnace, VA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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 Longdale Furnace
Longdale Furnace serves about 70 people through 54 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Alleghany County, Virginia. EPA system ID: VA2005560; phone on file: 540-862-7917. They can tell you what your service line is made of and whether they pay to replace it.
Longdale Furnace's lead record
That is down 1.12 ppb from 1.12 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Longdale Furnace is 4.08 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 1.12 ppb |
| 2021 | 1.56 ppb |
| 2018 | 4.08 ppb |
| 2017 | 1 ppb |
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. Longdale Furnace's reported as 0 (not detected) sits at the 8th 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
9 other systems share Alleghany County; 9 of them have a higher latest lead result than Longdale Furnace. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Clifton Forge, Town Of | 3,884 | 2.4 ppb |
| Pounding Mill | 1,965 | 3.5 ppb |
| Selma / Low Moor / Valley Ridge | 1,884 | 0.87 ppb |
| Cliftondale Park/ Wilson Creek/ Sharon | 1,860 | 2.7 ppb |
| Intervale/Clearwater Park | 1,332 | 0.5 ppb |
| Rosedale/Callaghan | 858 | 0.82 ppb |
| Cherokee | 504 | 0.46 ppb |
| Iron Gate, Town Of | 408 | 1.54 ppb |
| Wesgate | 288 | 1.5 ppb |
Your move
Look up your address in Longdale Furnace'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 Longdale Furnace 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.