Tri County Clarksburg, WV
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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 Tri County Clarksburg
Tri County Clarksburg serves about 919 people through 389 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws surface water, in Harrison County, West Virginia. EPA system ID: WV3301742; phone on file: 304-534-5645. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Tri County Clarksburg's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Tri County Clarksburg is 0.8 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0.36 ppb |
| 2022 | 0.8 ppb |
| 2019 | 0.51 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. Tri County Clarksburg's reported as 0 (not detected) sits at the 9th percentile in West Virginia and the 26th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
19 other systems share Harrison County; 16 of them have a higher latest lead result than Tri County Clarksburg. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Clarksburg Water Board | 19,072 | 1.3 ppb |
| Bridgeport City Of | 11,158 | 0.27 ppb |
| Shinnston City Of | 4,959 | 1.17 ppb |
| Greater Harrison Psd Lost Creek Mt Clare | 3,536 | 0.26 ppb |
| Sun Valley Psd | 2,905 | 0.75 ppb |
| Greater Harrison Psd Valley Of Good Hope | 2,744 | 0.46 ppb |
| Shortline Psd | 2,727 | 0 (not detected) |
| Greater Harrison Psd - Quiet Dell | 2,328 | 0 (not detected) |
| Stonewood City Of | 2,236 | 1.6 ppb |
| Enlarged Hepzibah Psd | 1,937 | 2 ppb |
Your move
Look up your address in Tri County Clarksburg'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 Tri County Clarksburg 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.