Norridgewock Water District, ME
Lead detected, under the action levels
Latest 90th-percentile lead: 1.87 ppb (monitoring period 2022-2024). 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.
About Norridgewock Water District
Norridgewock Water District serves about 1,055 people through 422 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 groundwater, in Somerset County, Maine. EPA system ID: ME0091110; phone on file: 207-474-1035. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2021 (2.16 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Norridgewock Water District is 3.1 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.87 ppb |
| 2021 | 2.16 ppb |
| 2018 | 3.1 ppb |
| 2018 | 3.1 ppb |
| 2016 | 2.5 ppb |
How Norridgewock Water District compares
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. Norridgewock Water District's 1.87 ppb sits at the 57th percentile in Maine and the 68th nationally (higher means more lead).
Neighbouring systems
16 other systems share Somerset County; 12 of them have a higher latest lead result than Norridgewock Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Maine Water Company Skowhegan Division | 6,105 | 4.2 ppb |
| Anson And Madison Water District | 5,568 | 4.3 ppb |
| Pittsfield Water Dept | 3,228 | 1.8 ppb |
| Jackman Utility District | 1,125 | 5.6 ppb |
| Bingham Water District | 1,075 | 3.5 ppb |
| Maine Water Company Hartland Division | 1,043 | 3.4 ppb |
| Solon Water District | 475 | 2 ppb |
| Riverside Terrace | 350 | 3.4 ppb |
| Moscow Water District | 313 | 1.7 ppb |
| Pleasant Acres Estates | 193 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Norridgewock, 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 Norridgewock Water District 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.