- Lead, 90th percentile: 9.85 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2020–Dec 31, 2022). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
Public EPA test results
Can you drink West Seneca tap water? What EPA records show
EPA NY1404543 · serves West Seneca (T), NY · about 23,557 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Ecwa West Seneca (EPA NY1404543)
EPA data as of October 14, 2026. For West Seneca's main utility, Ecwa West Seneca: We found no health-based violations in EPA's records for this system (NY1404543) since July 1, 2021, as of October 14, 2026. This system buys water from Ecwa Direct (NY1400443); see that system's records. This is public data, not a test of your tap.
What EPA records show for Ecwa West Seneca, as of October 14, 2026
We found no health-based violations in EPA's records for this system (NY1404543) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Ecwa West Seneca (SDWIS). Data as of October 14, 2026.
Lead, 90th percentile: 9.85 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2020–Dec 31, 2022). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
This system buys water from Ecwa Direct (NY1400443); see that system's records.
Source: Ecwa Direct (NY1400443) report. Data as of October 14, 2026.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Ecwa West Seneca use chloramine?
We didn't find chloramine in Ecwa West Seneca's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.