Ctwc - Legend Hill System, CT
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Ctwc - Legend Hill System serves about 1,368 people through 160 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in New Haven County, Connecticut. EPA system ID: CT0765101; phone on file: 860-664-6125. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Ctwc - Legend Hill System's lead record
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Ctwc - Legend Hill System is 16 ppb across 13 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 2.3 ppb |
| 2022 | 1.3 ppb |
| 2021 | 2 ppb |
| 2020 | 3 ppb |
| 2019 | 4 ppb |
| 2018 | 2 ppb |
| 2018 | 2 ppb |
| 2017 | 1.6 ppb |
| 2017 | 1 ppb |
| 2016 | 6 ppb |
| 2016 | 16 ppb over 15 |
How Ctwc - Legend Hill System compares
Of the 493 Connecticut systems with a lead result, the median latest reading is 0.8 ppb; 2 are over 15 ppb right now and 49 have gone over at some point. Ctwc - Legend Hill System's reported as 0 (not detected) sits at the 31st percentile in Connecticut and the 28th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
30 other systems share New Haven County; 13 of them have a higher latest lead result than Ctwc - Legend Hill System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Regional Water Authority | 418,900 | 0 (not detected) |
| Waterbury Water Department | 107,271 | 0.01 ppb |
| Meriden Water Division | 58,441 | 0 (not detected) |
| Wallingford Water Department | 37,267 | 0 (not detected) |
| Ctwc - Shoreline Region-Guilford System | 33,975 | 0 (not detected) |
| Ctwc - Naugatuck Region-Central System | 22,735 | 0 (not detected) |
| Aquarion-Valley | 13,080 | 1.1 ppb |
| Heritage Water Company | 7,300 | 0.7 ppb |
| Wolcott Water Department | 2,550 | 0 (not detected) |
| Aquarion-East Derby | 1,101 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Clinton, CT 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 Ctwc - Legend Hill System 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. Why an old exceedance still matters: over the limit before, under it now.