Stamford
Stamford, CT water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
candle hill mobile home park
groundwater (wells) · private · PWSID CT0960151
Below EPA's 15 ppb lead action level at last testing.
Source: EPA Safe Drinking Water Information System (SDWIS) · 2026 Q1
Stamford is a mid-sized city and the 3rd-largest in Connecticut, home to roughly 128,874 residents. Stamford's drinking water comes largely from the same regional sources that serve Connecticut: Connecticut River, reservoirs, and groundwater.
As elsewhere in Connecticut, the central challenge is aging infrastructure. Generally water-rich, with periodic regional shortfalls and PFAS detections driving treatment upgrades.
Connecticut reuses an estimated 4% of its treated wastewater and maintains minimal reuse programs; Stamford tracks abnormally dry to moderate drought conditions on the U.S. Drought Monitor scale.
Explore the Connecticut profile for statewide context, or dig into the water issues shaping Stamford below.
Litchfield County water quality
Source: EPA SDWIS · 2026 Q1
At a glance
- Population ~128,874 (3rd-largest in Connecticut)
- Primary sources: Connecticut River, reservoirs, and groundwater
- Drought: abnormally dry to moderate conditions
- State reuse rate: ~4% of wastewater
Statewide drought history
% of Connecticut in severe+ drought (Moderate (D1) now).
Source: U.S. Drought Monitor
Common questions
Is tap water safe in Stamford?
Stamford's largest water system, CANDLE HILL MOBILE HOME PARK, serves about 233 people. EPA records show 1 health-based violation(s) since 2016 and a most-recent 90th-percentile lead level of 2 ppb (EPA action level is 15 ppb). Always check your own provider's annual Consumer Confidence Report.
Where does Stamford get its water?
CANDLE HILL MOBILE HOME PARK draws primarily from groundwater (wells), part of Connecticut's supply from Connecticut River, reservoirs, groundwater.
Related water issues
Aging Infrastructure
Much of America's water infrastructure is decades past its design life, leaking trillions of gallons a year and demanding hundreds of billions in reinvestment.
ExplorePFAS Contamination
Per- and polyfluoroalkyl substances persist in water supplies for decades. New federal limits are forcing utilities nationwide to invest in advanced treatment.
Explore