Grand Junction City Of, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 8.2 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.
Grand Junction City Of at a glance
Grand Junction City Of serves about 26,000 people through 9,300 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 Mesa County, Colorado. EPA system ID: CO0139321; phone on file: 970-256-4133. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 1.3 ppb from 9.5 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Grand Junction City Of is 9.5 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 8.2 ppb |
| 2021 | 9.5 ppb |
| 2020 | 8.5 ppb |
| 2019 | 7.1 ppb |
| 2018 | 7.8 ppb |
| 2017 | 8.5 ppb |
| 2016 | 3.9 ppb |
How Grand Junction City Of compares
Of the 1,025 Colorado systems with a lead result, the median latest reading is 1 ppb; 2 are over 15 ppb right now and 71 have gone over at some point. Grand Junction City Of's 8.2 ppb sits at the 98th percentile in Colorado and the 96th nationally (higher means more lead).
Other water systems in Mesa County
12 other systems share Mesa County; 0 of them have a higher latest lead result than Grand Junction City Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ute Wcd | 92,580 | 1.4 ppb |
| Clifton Wd | 34,500 | 2.2 ppb |
| Palisade Town Of | 3,060 | 0.3 ppb |
| Debeque Town Of | 911 | 1.4 ppb |
| Midlands Village | 893 | 0 (not detected) |
| Candlewood Park | 800 | 0.8 ppb |
| Collbran Town Of | 678 | 0 (not detected) |
| Kannah Creek | 435 | 1.4 ppb |
| Gateway Canyons Ws | 370 | 3.7 ppb |
| Mesa Wsd | 330 | 3.5 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Grand Junction, CO 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 Grand Junction City Of 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.