- Lead, 90th percentile: 0 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, 2026–Jun 30, 2026). 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
Sterling Ranch, CO tap water: what EPA records show
EPA CO0118724 · serves Douglas County, CO · about 11,501 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
Sterling Ranch Cab (EPA CO0118724)
EPA data as of October 14, 2026. For Sterling Ranch's main utility, Sterling Ranch Cab: We found no health-based violations in EPA's records for this system (CO0118724) since July 1, 2021, as of October 14, 2026. This system buys water from Dominion WSD (CO0118021); see that system's records. This is public data, not a test of your tap.
What EPA records show for Sterling Ranch Cab, as of October 14, 2026
We found no health-based violations in EPA's records for this system (CO0118724) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Sterling Ranch Cab (SDWIS). Data as of October 14, 2026.
Lead, 90th percentile: 0 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, 2026–Jun 30, 2026). 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 Dominion WSD (CO0118021); see that system's records.
Source: Dominion WSD (CO0118021) 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 Sterling Ranch Cab use chloramine?
We didn't find chloramine in Sterling Ranch Cab's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.