Rocky Ridge Town Water System, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 1.1 ppb (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. 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.
Rocky Ridge Town Water System at a glance
Rocky Ridge Town Water System serves about 1,297 people through 143 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 Juab County, Utah. EPA system ID: UTAH12019; phone on file: 435-623-1249. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2025 (1.1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Rocky Ridge Town Water System is 1.1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.1 ppb |
| 2025 | 1.1 ppb |
| 2016 | 0 (not detected) |
Where this result ranks
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. Rocky Ridge Town Water System's 1.1 ppb sits at the 34th percentile in Utah and the 57th nationally (higher means more lead).
Nearby utilities
4 other systems share Juab County; 4 of them have a higher latest lead result than Rocky Ridge Town Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Nephi City | 7,122 | 2.9 ppb |
| Mona Town Water System | 2,100 | 3.1 ppb |
| Levan Town Water System | 945 | 1.5 ppb |
| Eureka Town | 760 | 3.7 ppb |
Next steps for Rocky Ridge, UT
Test your own tap with a certified lab first-draw sample; Rocky Ridge, 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 Rocky Ridge Town Water System 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. Size matters more than most people expect: small vs large water systems.