Watertown Fire District, CT
Lead detected, under the action levels
Latest 90th-percentile lead: 2.2 ppb (monitoring period 2024-2026). 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.
Watertown Fire District at a glance
Watertown Fire District serves about 6,718 people through 2,132 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Litchfield County, Connecticut. EPA system ID: CT1530011; phone on file: 860-274-6332. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 1.8 ppb from 4 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Watertown Fire District is 14 ppb across 6 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2.2 ppb |
| 2024 | 4 ppb |
| 2022 | 1.81 ppb |
| 2020 | 3.44 ppb |
| 2018 | 3.8 ppb |
| 2016 | 14 ppb over 10 |
How Watertown Fire District 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. Watertown Fire District's 2.2 ppb sits at the 76th percentile in Connecticut and the 75th nationally (higher means more lead).
Other water systems in Litchfield County
72 other systems share Litchfield County; 14 of them have a higher latest lead result than Watertown Fire District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Torrington Water Company | 37,915 | 0 (not detected) |
| Watertown Water & Sewer Authority | 9,972 | 2 ppb |
| Winsted Water Works | 7,784 | 2.6 ppb |
| Ctwc - Naugatuck Reg-Terryville System | 5,607 | 0.6 ppb |
| Ctwc - Naugatuck Reg-Thomaston System | 3,789 | 2.8 ppb |
| Aquarion-Litchfield Regional | 3,097 | 2 ppb |
| Aquarion-Salisbury | 1,932 | 0 (not detected) |
| Aquarion-New Hartford | 1,872 | 1.4 ppb |
| Aquarion-North Canaan | 1,481 | 1.3 ppb |
| Aquarion-Woodbury | 1,209 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Watertown, 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 Watertown Fire District 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. The action level is dropping - the 10 ppb rule from 2027.