Us Army, Fort Buchanan, PR
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 12 ppb (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. 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.
Us Army, Fort Buchanan at a glance
Us Army, Fort Buchanan serves about 6,411 people through 2,392 service connections, which makes it a medium-sized system under EPA's size classes. It is federally owned and draws surface water, in Guaynabo Municipio County, PR. EPA system ID: PR0132051; phone on file: 787-707-3508. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Us Army, Fort Buchanan's lead record
That is up 9 ppb from 3 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Us Army, Fort Buchanan is 17 ppb across 5 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 12 ppb over 10 |
| 2025 | 3 ppb |
| 2025 | 3 ppb |
| 2023 | 11 ppb over 10 |
| 2016 | 17 ppb over 15 |
Where this result ranks
Of the 111 PR systems with a lead result, the median latest reading is 5 ppb; 10 are over 15 ppb right now and 16 have gone over at some point. Us Army, Fort Buchanan's 12 ppb sits at the 89th percentile in PR and the 98th nationally (higher means more lead).
Nearby utilities
1 other system shares Guaynabo Municipio County; 0 of them have a higher latest lead result than Us Army, Fort Buchanan. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lomas Verdes (Watch Tower) | 130 | - |
Next steps for Guaynabo, PR
Test your own tap with a certified lab first-draw sample; Guaynabo, PR 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 Us Army, Fort Buchanan 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. What a 90th-percentile result does and does not tell you: how to read a lead result. See what changes at 10 ppb in 2027.