ROSA JOINT VENTURES WATER SYSTEM

ROSA JOINT VENTURES WATER SYSTEM (PWSID NM3500324) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 239 people in Ignacio, CO, and is subject to primacy enforcement by the Colorado drinking-water program.

The system's federal compliance record contains 58 total violations, with 58 classified as health-based (MCL exceedances or treatment-technique failures). 3 distinct contaminants have been cited, including Fluoride, Thallium, E. coli. Recorded violations span 2017–2023.

A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Colorado state drinking-water program's public portal.