East Slope Water - West, AZ
Lead detected, under the action levels
Latest 90th-percentile lead: 6.9 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.
East Slope Water - West at a glance
East Slope Water - West serves about 655 people through 262 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Cochise County, Arizona. EPA system ID: AZ0402094; phone on file: 623-935-1100. They can tell you what your service line is made of and whether they pay to replace it.
East Slope Water - West's lead record
That is up 6.9 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for East Slope Water - West is 6.9 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 6.9 ppb |
| 2022 | 0 (not detected) |
| 2021 | 3.9 ppb |
| 2020 | 6.4 ppb |
| 2019 | 3.5 ppb |
| 2018 | 4.2 ppb |
| 2017 | 5.3 ppb |
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. East Slope Water - West's 6.9 ppb sits at the 94th percentile in Arizona and the 94th nationally (higher means more lead).
Nearby utilities
49 other systems share Cochise County; 4 of them have a higher latest lead result than East Slope Water - West. 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 Glendale, AZ
Test your own tap with a certified lab first-draw sample; Glendale, 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 East Slope Water - West 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. The action level is dropping - the 10 ppb rule from 2027.