Castine Water Department, ME
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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.
Castine Water Department at a glance
Castine Water Department serves about 983 people through 393 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Hancock County, Maine. EPA system ID: ME0090330; phone on file: 207-326-4502. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Castine Water Department's lead record
That is down 2.2 ppb from 2.2 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Castine Water Department is 2.4 ppb across 9 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 2.2 ppb |
| 2019 | 2.1 ppb |
| 2019 | 2.1 ppb |
| 2018 | 2.1 ppb |
| 2018 | 2.1 ppb |
| 2018 | 2.4 ppb |
| 2017 | 1.1 ppb |
| 2016 | 0.66 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. Castine Water Department's reported as 0 (not detected) sits at the 25th percentile in Maine and the 27th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
29 other systems share Hancock County; 23 of them have a higher latest lead result than Castine Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Town Of Bar Harbor- Water Division | 4,443 | 3.4 ppb |
| Ellsworth Water Department | 3,910 | 4 ppb |
| Southwest Harbor Water & Sewer District | 2,480 | 2.1 ppb |
| Maine Water Company Bucksport Division | 1,700 | 2 ppb |
| Mount Desert Water Dist North | 1,623 | 2.48 ppb |
| Mount Desert Water Dist -Seal | 865 | 2.77 ppb |
| Winter Harbor Water District | 700 | 1.4 ppb |
| Stonington Water Company | 683 | 1.3 ppb |
| Franklin Water Department | 420 | 3.6 ppb |
| Long Pond Water District | 308 | 4 ppb |
Next steps for Castine, ME
Look up your address in Castine Water Department'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 Castine Water Department 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. A zero today does not rule out a jump later - the rules are tightening in 2027.