Jones Coop Water Assoc, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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 Jones Coop Water Assoc
Jones Coop Water Assoc serves about 29 people through 16 service connections, which makes it a very small system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Yuma County, Arizona. EPA system ID: AZ0414070. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
That is down 12.6 ppb from 12.6 ppb in the period ending 2018. The highest 90th-percentile result EPA holds for Jones Coop Water Assoc is 12.6 ppb across 3 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2018 | 12.6 ppb over 10 |
| 2017 | 12.6 ppb over 10 |
Against other Arizona systems
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. Jones Coop Water Assoc's reported as 0 (not detected) sits at the 1st percentile in Arizona and the 1st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
18 other systems share Yuma County; 9 of them have a higher latest lead result than Jones Coop Water Assoc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Yuma | 103,264 | 1.1 ppb |
| San Luis City Of | 39,705 | 1 ppb |
| Foothills Water And Sewer Llc | 32,425 | 0 (not detected) |
| Somerton City Of | 14,197 | 1 ppb |
| Usmc Yuma Main System | 8,353 | 3 ppb |
| Aspc Yuma | 4,197 | 0.93 ppb |
| Wellton Town Of | 3,000 | 0.52 ppb |
| Howard Cantonment Area | 1,500 | 1.1 ppb |
| Sierra Pacific Mobile Manor | 816 | 0.54 ppb |
| Tacna Water Improvement District | 500 | 0 (not detected) |
Next steps for Yuma, AZ
Look up your address in Jones Coop Water Assoc'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 Jones Coop Water Assoc 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.