Mexican Hat Ssd, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 2.2 ppb (monitoring period 2026-2026). 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.
Mexican Hat Ssd at a glance
Mexican Hat Ssd serves about 120 people through 40 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 San Juan County, Utah. EPA system ID: UTAH19008; phone on file: 435-459-2791. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
The highest 90th-percentile result EPA holds for Mexican Hat Ssd is 2.2 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2.2 ppb |
How Mexican Hat Ssd 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. Mexican Hat Ssd's 2.2 ppb sits at the 60th percentile in Utah and the 75th nationally (higher means more lead).
Other water systems in San Juan County
9 other systems share San Juan County; 5 of them have a higher latest lead result than Mexican Hat Ssd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Blanding City | 3,500 | 1.3 ppb |
| Monticello City | 2,393 | 3.6 ppb |
| San Juan Spanish Valley Ssd | 550 | 6.9 ppb |
| Bluff Water Works Service District | 430 | 0.3 ppb |
| Glen Canyon Nra - Halls Crossing | 190 | 7.3 ppb |
| Rockland Ranch | 175 | 0 (not detected) |
| Eastland Special Service District | 90 | 7.2 ppb |
| Pack Creek Water Company | 75 | 49 ppb |
| Wilson Arch Water & Sewer Ssd | 37 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Blanding, 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 Mexican Hat Ssd 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.