Cornish Town Water System, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 1.6 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 Cornish Town Water System
Cornish Town Water System serves about 275 people through 119 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 surface water, in Cache County, Utah. EPA system ID: UTAH03005; phone on file: 435-757-6726. They can tell you what your service line is made of and whether they pay to replace it.
Cornish Town Water System's lead record
Against the period ending 2023 (1.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cornish Town Water System is 1.6 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.6 ppb |
| 2023 | 1.6 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. Cornish Town Water System's 1.6 ppb sits at the 46th percentile in Utah and the 65th nationally (higher means more lead).
Other water systems in Cache County
21 other systems share Cache County; 15 of them have a higher latest lead result than Cornish Town Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Logan City Water System | 55,540 | 2.2 ppb |
| Hyrum City | 10,891 | 3.4 ppb |
| Smithfield City | 10,223 | 4 ppb |
| Providence City Water System | 9,690 | 1.5 ppb |
| Nibley City Water | 9,200 | 1.6 ppb |
| North Logan City | 8,500 | 2.7 ppb |
| Wellsville City Water System | 4,190 | 2.8 ppb |
| River Heights City | 2,195 | 11.7 ppb |
| Lewiston City | 2,078 | 1.3 ppb |
| Millville City | 1,900 | 4 ppb |
Next steps for Cornish, UT
Test your own tap with a certified lab first-draw sample; Cornish, 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 Cornish 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.