Twin Oaks Local District, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 6.6 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.
Twin Oaks Local District at a glance
Twin Oaks Local District serves about 323 people through 96 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Sanpete County, Utah. EPA system ID: UTAH20014; phone on file: 435-463-3555. They can tell you what your service line is made of and whether they pay to replace it.
Twin Oaks Local District's lead record
That is up 3.5 ppb from 3.1 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Twin Oaks Local District is 6.6 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 6.6 ppb |
| 2021 | 3.1 ppb |
| 2021 | 2 ppb |
| 2020 | 3.1 ppb |
| 2018 | 1.1 ppb |
How Twin Oaks Local District compares
Of the 521 Utah systems with a lead result, the median latest reading is 1.71 ppb; 8 are over 15 ppb right now and 27 have gone over at some point. Twin Oaks Local District's 6.6 ppb sits at the 92nd percentile in Utah and the 94th nationally (higher means more lead).
Other water systems in Sanpete County
19 other systems share Sanpete County; 1 of them has a higher latest lead result than Twin Oaks Local District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ephraim City | 7,000 | 4.5 ppb |
| Mount Pleasant City | 4,040 | 2.2 ppb |
| Gunnison City | 3,509 | 2 ppb |
| Manti City | 3,429 | 1.7 ppb |
| Fairview City Water System | 2,092 | 3 ppb |
| Centerfield Town Water System | 1,700 | 1.7 ppb |
| Moroni City | 1,600 | 0.6 ppb |
| Fountain Green | 1,275 | 3.1 ppb |
| Spring City | 1,050 | 1.9 ppb |
| Mayfield Town Water System | 617 | 3.1 ppb |
Next steps for Cedar City, UT
Test your own tap with a certified lab first-draw sample; Cedar City, UT 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 Twin Oaks Local District 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. The action level is dropping - the 10 ppb rule from 2027.