South Davis Water District, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 8.6 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.
About South Davis Water District
South Davis Water District serves about 10,565 people through 3,241 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Davis County, Utah. EPA system ID: UTAH06009; phone on file: 801-295-4468. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 6.5 ppb from 2.1 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for South Davis Water District is 8.6 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 8.6 ppb |
| 2022 | 2.1 ppb |
| 2019 | 4.4 ppb |
| 2016 | 3.3 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. South Davis Water District's 8.6 ppb sits at the 96th percentile in Utah and the 96th nationally (higher means more lead).
Other water systems in Davis County
19 other systems share Davis County; 2 of them have a higher latest lead result than South Davis Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Layton City Water System | 82,000 | 4.08 ppb |
| Bountiful City Water System | 37,500 | 7.2 ppb |
| Syracuse City Water System | 35,561 | 2.6 ppb |
| Clearfield City Water System | 33,540 | 2.8 ppb |
| Kaysville City Water System | 32,976 | 2.4 ppb |
| Farmington City Water System | 27,860 | 3 ppb |
| Hill Air Force Base | 25,625 | 1.2 ppb |
| Clinton City Water System | 23,000 | 2.2 ppb |
| North Salt Lake City Water System | 18,655 | 16 ppb |
| Centerville City Water System | 17,155 | 3 ppb |
Next steps for Bountiful, UT
Test your own tap with a certified lab first-draw sample; Bountiful, 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 South Davis Water 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.