Holly Lake Ranch, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Holly Lake Ranch
Holly Lake Ranch serves about 3,540 people through 1,973 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Wood County, Arizona. EPA system ID: TX2500012; phone on file: 623-298-3753. They can tell you what your service line is made of and whether they pay to replace it.
Holly Lake Ranch's lead record
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Holly Lake Ranch is 4.97 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2017 | 1.94 ppb |
| 2017 | 4.97 ppb |
| 2016 | 1.21 ppb |
Where this result ranks
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. Holly Lake Ranch's reported as 0 (not detected) sits at the 54th percentile in Arizona and the 33rd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Next steps for Litchfield Park, AZ
Look up your address in Holly Lake Ranch's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Holly Lake Ranch 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. A zero today does not rule out a jump later - the rules are tightening in 2027.