Ctwc - Shoreline Region-Chester System, CT
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Ctwc - Shoreline Region-Chester System
Ctwc - Shoreline Region-Chester System serves about 5,030 people through 2,620 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws surface water, in Middlesex County, Connecticut. EPA system ID: CT0261031; phone on file: 860-664-6125. They can tell you what your service line is made of and whether they pay to replace it.
Ctwc - Shoreline Region-Chester System's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Ctwc - Shoreline Region-Chester System is 2.3 ppb across 19 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 1.6 ppb |
| 2024 | 0 (not detected) |
| 2023 | 1 ppb |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 1 ppb |
| 2021 | 0 (not detected) |
| 2021 | 1 ppb |
| 2020 | 1 ppb |
| 2020 | 0 (not detected) |
| 2020 | 1 ppb |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 2.3 ppb |
| 2017 | 2.3 ppb |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
Against other Connecticut systems
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 - Shoreline Region-Chester System's reported as 0 (not detected) sits at the 34th percentile in Connecticut and the 35th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
45 other systems share Middlesex County; 20 of them have a higher latest lead result than Ctwc - Shoreline Region-Chester System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Middletown Water Department | 41,019 | 0 (not detected) |
| Cromwell Fire District Water Department | 14,316 | 0 (not detected) |
| Portland Water Department | 5,010 | 0 (not detected) |
| Connecticut Valley Hospital | 2,928 | 0 (not detected) |
| Durham Center Division | 1,601 | 0 (not detected) |
| Ctwc - Jensens Beechwood System | 750 | 1.7 ppb |
| Ctwc - Spice Hill Division | 712 | 0 (not detected) |
| Edgemere Condominium Assn., Inc. | 540 | 0 (not detected) |
| Yeshiva Of Waterbury-Durham Campus | 490 | 0 (not detected) |
| East Hampton Wpca - Village Center | 366 | 0 (not detected) |
Next steps for Clinton, CT
Look up your address in Ctwc - Shoreline Region-Chester System's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Ctwc - Shoreline Region-Chester 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. A zero today does not rule out a jump later - the rules are tightening in 2027.