New Harmony Water System, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 0.6 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.
About New Harmony Water System
New Harmony Water System serves about 200 people through 116 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 Washington County, Utah. EPA system ID: UTAH27011; phone on file: 435-590-0268. 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 (0.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for New Harmony Water System is 2.8 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.6 ppb |
| 2025 | 0.6 ppb |
| 2022 | 2.8 ppb |
Against other Utah systems
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. New Harmony Water System's 0.6 ppb sits at the 18th percentile in Utah and the 45th nationally (higher means more lead).
Other water systems in Washington County
37 other systems share Washington County; 25 of them have a higher latest lead result than New Harmony Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| St George City Water System | 105,240 | 1.4 ppb |
| Washington City | 45,865 | 2.1 ppb |
| Hurricane City | 25,555 | 0.5 ppb |
| Ivins | 10,465 | 2.3 ppb |
| Santa Clara City | 9,000 | 0.6 ppb |
| Hildale - Colorado City | 6,100 | 1 ppb |
| La Verkin City Water System | 4,500 | 2.21 ppb |
| Zion Canyon Water System | 3,380 | 3.15 ppb |
| Enterprise Town Water System | 2,200 | 1.6 ppb |
| Toquerville Town Water System | 1,931 | 0 (not detected) |
Next steps for New Harmony, UT
Test your own tap with a certified lab first-draw sample; New Harmony, 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 New Harmony 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. Systems that went over once often dip back under; here is what that means.