Hazardville Water Company, CT
Lead detected, under the action levels
Latest 90th-percentile lead: 0.7 ppb (monitoring period 2022-2024). 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
Hazardville Water Company serves about 18,544 people through 7,327 service connections, which makes it a large system under EPA's size classes. It is privately owned and draws groundwater, in Hartford County, Connecticut. EPA system ID: CT0490021; phone on file: 860-749-0779. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Hazardville Water Company's lead record
That is down 1.1 ppb from 1.8 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Hazardville Water Company is 3.7 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.7 ppb |
| 2021 | 1.8 ppb |
| 2018 | 3.7 ppb |
How Hazardville Water Company 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. Hazardville Water Company's 0.7 ppb sits at the 49th percentile in Connecticut and the 47th nationally (higher means more lead).
Neighbouring systems
46 other systems share Hartford County; 14 of them have a higher latest lead result than Hazardville Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Metropolitan District Commission | 390,887 | 0 (not detected) |
| Ctwc - Northern Reg-Western System | 101,313 | 0 (not detected) |
| New Britain Water Department | 73,534 | 0 (not detected) |
| Bristol Water Department | 52,079 | 0 (not detected) |
| Manchester Water Department | 51,198 | 0 (not detected) |
| Southington Water Department | 43,069 | 0 (not detected) |
| Aquarion-Plainville Regional | 18,231 | 0 (not detected) |
| Ctwc - Unionville System | 14,693 | 2.4 ppb |
| Aquarion-Simsbury Regional | 14,691 | 0.3 ppb |
| Avon Water Co | 11,590 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Enfield, 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 Hazardville Water Company 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.