Riverside Terrace, ME
Lead detected, under the action levels
Latest 90th-percentile lead: 3.4 ppb (monitoring period 2023-2025). 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.
Riverside Terrace at a glance
Riverside Terrace serves about 350 people through 135 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Somerset County, Maine. EPA system ID: ME0003017; phone on file: 207-474-3294. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (4 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Riverside Terrace is 5.9 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3.4 ppb |
| 2022 | 4 ppb |
| 2019 | 5.9 ppb |
| 2016 | 1.6 ppb |
Against other Maine systems
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. Riverside Terrace's 3.4 ppb sits at the 77th percentile in Maine and the 85th nationally (higher means more lead).
Nearby utilities
16 other systems share Somerset County; 9 of them have a higher latest lead result than Riverside Terrace. 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 |
| Norridgewock Water District | 1,055 | 1.87 ppb |
| Maine Water Company Hartland Division | 1,043 | 3.4 ppb |
| Solon Water District | 475 | 2 ppb |
| Moscow Water District | 313 | 1.7 ppb |
| Pleasant Acres Estates | 193 | 0 (not detected) |
Next steps for Canaan, ME
Test your own tap with a certified lab first-draw sample; Canaan, 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 Riverside Terrace 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. Size matters more than most people expect: small vs large water systems.