Sharon Water System, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 0.4 ppb (monitoring period 2025-2025). 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 Sharon Water System
Sharon Water System serves about 1,243 people through 545 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 groundwater, in Weakley County, Tennessee. EPA system ID: TN0000627. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 2.5 ppb from 2.9 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Sharon Water System is 3.6 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.4 ppb |
| 2025 | 2.9 ppb |
| 2025 | 0.7 ppb |
| 2022 | 3 ppb |
| 2019 | 3.6 ppb |
| 2016 | 2.03 ppb |
Against other Tennessee systems
Of the 453 Tennessee systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 10 have gone over at some point. Sharon Water System's 0.4 ppb sits at the 9th percentile in Tennessee and the 42nd nationally (higher means more lead).
Nearby utilities
4 other systems share Weakley County; 2 of them have a higher latest lead result than Sharon Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Martin Water Department | 11,918 | 1.6 ppb |
| Dresden Water Dept | 3,381 | 1 ppb |
| Greenfield Water Dept | 2,189 | 0.3 ppb |
| Gleason Water Dept | 1,482 | 0.3 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Dyer, TN 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 Sharon Water System whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1620 ppb (copper action level 1,300 ppb).
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. The action level is dropping - the 10 ppb rule from 2027.