Big Eddy, AZ
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 10.4 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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
About Big Eddy
Big Eddy serves about 2,709 people through 903 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Smith County, Arizona. EPA system ID: TX2120037; phone on file: 623-298-3753. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is up 10.4 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Big Eddy is 10.4 ppb across 2 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 10.4 ppb over 10 |
| 2022 | 0 (not detected) |
How Big Eddy compares
Of the 730 Arizona systems with a lead result, the median latest reading is 0 ppb; 9 are over 15 ppb right now and 58 have gone over at some point. Big Eddy's 10.4 ppb sits at the 97th percentile in Arizona and the 97th nationally (higher means more lead).
What to do in your house
Test your own tap with a certified lab first-draw sample; Litchfield Park, AZ 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 Big Eddy 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. This system is in the band the 2027 10 ppb rule changes.