Cochise College Park Water Assoc, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
Who runs the water here
Cochise College Park Water Assoc serves about 83 people through 33 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 Cochise County, Arizona. EPA system ID: AZ0402040; phone on file: 520-234-6019. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cochise College Park Water Assoc is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 2 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. Cochise College Park Water Assoc's reported as 0 (not detected) sits at the 10th percentile in Arizona and the 8th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Cochise County
49 other systems share Cochise County; 18 of them have a higher latest lead result than Cochise College Park Water Assoc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bella Vista City Water System | 20,045 | 0 (not detected) |
| Douglas City Of | 16,656 | 0 (not detected) |
| Us Army Fort Huachuca | 15,603 | 0 (not detected) |
| Pueblo Del Sol Water Company | 12,804 | 0 (not detected) |
| Arizona Water Co - Sierra Vista | 9,233 | 0 (not detected) |
| Arizona Water Co - Bisbee | 8,590 | 0 (not detected) |
| Benson, City Of Water System | 5,355 | 0 (not detected) |
| City Of Willcox | 3,236 | 0 (not detected) |
| St David Dwid | 2,192 | 0 (not detected) |
| Bella Vista Water South | 2,178 | 0 (not detected) |
Next steps for Douglas, AZ
Look up your address in Cochise College Park 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 Cochise College Park 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. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.