Holden Square Apartments, ME
Exceeded the action level in the past
Latest 90th-percentile lead: 2.8 ppb (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Holden Square Apartments
Holden Square Apartments serves about 63 people through 25 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Penobscot County, Maine. EPA system ID: ME0092155; phone on file: 207-772-3399. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 1.4 ppb from 1.4 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Holden Square Apartments is 32.8 ppb across 13 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.8 ppb |
| 2025 | 1.4 ppb |
| 2024 | 1 ppb |
| 2023 | 0.6 ppb |
| 2023 | 2.8 ppb |
| 2022 | 0.7 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 32.8 ppb over 15 |
| 2017 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 0.34 ppb |
Where this result ranks
Of the 358 Maine systems with a lead result, the median latest reading is 1.5 ppb; 2 are over 15 ppb right now and 40 have gone over at some point. Holden Square Apartments's 2.8 ppb sits at the 72nd percentile in Maine and the 79th nationally (higher means more lead).
Nearby utilities
48 other systems share Penobscot County; 17 of them have a higher latest lead result than Holden Square Apartments. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bangor Water District | 27,298 | 7.45 ppb |
| Brewer Water Department | 8,860 | 2.1 ppb |
| Old Town Water District | 7,648 | 7.9 ppb |
| Orono-Veazie Water District | 5,793 | 10 ppb |
| Maine Water Company Millinocket Division | 5,400 | 2.8 ppb |
| Hampden Water District | 4,800 | 2.52 ppb |
| Lincoln Water District | 3,020 | 0.96 ppb |
| Dexter Utility District | 2,338 | 4.9 ppb |
| East Millinocket Water Works | 2,133 | 2.8 ppb |
| Newport Water District | 1,900 | 1.3 ppb |
Next steps for Holden, ME
Test your own tap with a certified lab first-draw sample; Holden, ME 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 Holden Square Apartments whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 3020 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Why an old exceedance still matters: over the limit before, under it now.