Williamson Utility Board, WV
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.
Who runs the water here
Williamson Utility Board serves about 2,660 people through 1,226 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Mingo County, West Virginia. EPA system ID: WV3303009; phone on file: 304-235-1626. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Williamson Utility Board is 0.6 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0.4 ppb |
| 2016 | 0.6 ppb |
Against other West Virginia systems
Of the 408 West Virginia systems with a lead result, the median latest reading is 0.9 ppb; 4 are over 15 ppb right now and 20 have gone over at some point. Williamson Utility Board's reported as 0 (not detected) sits at the 13th percentile in West Virginia and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Mingo County
12 other systems share Mingo County; 4 of them have a higher latest lead result than Williamson Utility Board. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mingo County Psd - Pigeon Creek | 2,877 | 8.6 ppb |
| Matewan Water Works | 2,205 | 0 (not detected) |
| Mingo County Psd - Naugatuck | 2,159 | 0 (not detected) |
| Gilbert Water Works | 1,840 | 0 (not detected) |
| Kermit Water Works | 1,237 | 2 ppb |
| Mingo Co Psd - Ragland District | 621 | 0 (not detected) |
| Justice Psd | 504 | 0.5 ppb |
| Mingo County Psd - Lick Creek | 380 | 2 ppb |
| Mingo County Psd - Marrowbone | 292 | 0 (not detected) |
| Delbarton Town Of | 277 | 0 (not detected) |
Your move
Look up your address in Williamson Utility Board'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 Williamson Utility Board 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. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.