Twin Ells Mobile Home Park, MA
Lead detected, under the action levels
Latest 90th-percentile lead: 1.65 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. 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.
Who runs the water here
Twin Ells Mobile Home Park serves about 108 people through 36 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Clinton County, Massachusetts. EPA system ID: NY0907942. Ask the utility on your bill for your address in their service line inventory.
Twin Ells Mobile Home Park's lead record
Against the period ending 2024 (1.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Twin Ells Mobile Home Park is 2.95 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.65 ppb |
| 2024 | 1.2 ppb |
| 2024 | 1.05 ppb |
| 2023 | 1.05 ppb |
| 2020 | 2.95 ppb |
| 2017 | 2.8 ppb |
| 2016 | 1 ppb |
How Twin Ells Mobile Home Park compares
Of the 535 Massachusetts systems with a lead result, the median latest reading is 1.7 ppb; 13 are over 15 ppb right now and 66 have gone over at some point. Twin Ells Mobile Home Park's 1.65 ppb sits at the 49th percentile in Massachusetts and the 66th nationally (higher means more lead).
Your move
Test your own tap with a certified lab first-draw sample; Pittsfield, MA 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 Twin Ells Mobile Home Park 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.