Maunabo Urbano, PR
Lead detected, under the action levels
Latest 90th-percentile lead: 6 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. 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.
Maunabo Urbano at a glance
Maunabo Urbano serves about 9,380 people through 3,513 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Maunabo Municipio County, PR. EPA system ID: PR0004815; phone on file: 787-620-2277. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Maunabo Urbano's lead record
Against the period ending 2025 (5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Maunabo Urbano is 6.8 ppb across 12 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 6 ppb |
| 2025 | 5 ppb |
| 2025 | 6 ppb |
| 2024 | 6 ppb |
| 2024 | 6 ppb |
| 2023 | 6 ppb |
| 2023 | 6.8 ppb |
| 2022 | 6 ppb |
| 2021 | 6 ppb |
| 2020 | 4 ppb |
| 2017 | 6 ppb |
| 2016 | 6 ppb |
Against other PR systems
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. Maunabo Urbano's 6 ppb sits at the 74th percentile in PR and the 93rd nationally (higher means more lead).
Nearby utilities
5 other systems share Maunabo Municipio County; 0 of them have a higher latest lead result than Maunabo Urbano. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Quebrada Arenas | 180 | - |
| Villodas | 120 | - |
| Talante | 93 | 3 ppb |
| Sistema De Agua Matuyas Bajo | 88 | 3 ppb |
| Sistema Cruz Leon | 30 | 3 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Maunabo, 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 Maunabo Urbano whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1853 ppb (copper action level 1,300 ppb).
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. Size matters more than most people expect: small vs large water systems.