Here is what the EPA's own data shows about tap water in Greeley. According to EPA SDWIS data retrieved October 2026, Greeley is served by 7 active community water systems, together reported to serve about 140,897 people.
As of October 2026, EPA records show 10 violations across the community water system(s) serving Greeley, going back to the earliest EPA record. None were health-based; the records are monitoring or reporting violations (a required test or report was late or missed). Each is listed by system below, with its status.
Monitoring Chlorite: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between May 2021 and July 2025. All have since returned to compliance, per EPA records.
Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2020 and October 2024. All have since returned to compliance, per EPA records.
Monitoring Chlorine dioxide: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in May 2021. All have since returned to compliance, per EPA records.
Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2006. All have since returned to compliance, per EPA records.
Central Weld Cnty Wd
7,662 served · surface water · PWSID CO0162122
Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in May 2021. All have since returned to compliance, per EPA records.
Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2006. All have since returned to compliance, per EPA records.
Woodlands East
350 served · surface water · PWSID CO0162852
As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Greeley Mobile Manor
180 served · surface water · PWSID CO0162326
As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Green Acres Mobile Home Park
180 served · surface water · PWSID CO0162327
As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Paradise Village Coop Mobile Home Park
140 served · surface water · PWSID CO0162601
As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Lmp Coop Mhp
75 served · surface water · PWSID CO0107483
Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in February 2026. All have since returned to compliance, per EPA records.
What this means
A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.
This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.
Source: U.S. EPA Envirofacts SDWIS, retrieved October 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.