Sheffield Wsc, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 1.33 ppb (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. 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.
Sheffield Wsc at a glance
Sheffield Wsc serves about 350 people through 227 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Pecos County, Texas. EPA system ID: TX1860004; phone on file: 432-639-2841. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
The highest 90th-percentile result EPA holds for Sheffield Wsc is 1.33 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.33 ppb |
Where this result ranks
Of the 4,447 Texas systems with a lead result, the median latest reading is 0.28 ppb; 15 are over 15 ppb right now and 202 have gone over at some point. Sheffield Wsc's 1.33 ppb sits at the 72nd percentile in Texas and the 61st nationally (higher means more lead).
Other water systems in Pecos County
4 other systems share Pecos County; 1 of them has a higher latest lead result than Sheffield Wsc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Fort Stockton | 8,142 | 1.46 ppb |
| Pecos County Wcid 1 | 3,612 | 1.12 ppb |
| City Of Iraan | 1,229 | 0 (not detected) |
| Pecos County Fresh Water | 800 | 1.08 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Iraan, TX 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 Sheffield Wsc 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. Size matters more than most people expect: small vs large water systems.