Mount Ida (Greenport), NY
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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.
About Mount Ida (Greenport)
Mount Ida (Greenport) serves about 485 people through 24 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Columbia County, New York. EPA system ID: NY1030073; phone on file: 518-828-4656. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Mount Ida (Greenport)'s lead record
That is down 6.15 ppb from 7.15 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Mount Ida (Greenport) is 9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2020 | 7.15 ppb |
| 2019 | 9 ppb |
How Mount Ida (Greenport) compares
Of the 2,077 New York systems with a lead result, the median latest reading is 1.5 ppb; 17 are over 15 ppb right now and 165 have gone over at some point. Mount Ida (Greenport)'s 1 ppb sits at the 34th percentile in New York and the 53rd nationally (higher means more lead).
Neighbouring systems
42 other systems share Columbia County; 17 of them have a higher latest lead result than Mount Ida (Greenport). If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hudson City | 6,750 | 0 (not detected) |
| Greenport Wd No1 | 4,050 | 2.4 ppb |
| Chatham Village | 2,156 | 2.5 ppb |
| Valatie Village | 2,000 | 2 ppb |
| Stockport Wd #2 (Consolidated) | 2,000 | 3.5 ppb |
| Philmont Village | 1,483 | 3 ppb |
| Kinderhook Village | 1,385 | 1 ppb |
| Taconic Shores | 950 | 1 ppb |
| Darrow Lakeside Campus | 420 | 6 ppb |
| Grandview Water Works | 325 | 3.5 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Hudson, NY 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 Mount Ida (Greenport) 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. Systems that went over once often dip back under; here is what that means.