Tapcensus

Xylenes, Total violations in Colorado

74 active public water systems in Colorado had a Xylenes, Total violation in the past three years, 4 of them in the latest quarter of EPA's data. What Xylenes, Total is and why it matters.

Health effects: Short-term exposure above the MCL can cause nervous system effects including headache, dizziness, and impaired coordination. Chronic exposure is associated with liver and kidney damage. EPA has not classified total xylenes as human carcinogens. The general population is at risk; children may be more sensitive to neurological effects.

Systems with a Xylenes, Total violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Eden Valley Institute
Larimer County
91 11 1
Valley Mobile Home LLC
Alamosa County
85 12 1
Ridgewood WD
Teller County
84 5 0
Steamboat Mountain School
Routt County
83 8 0
South Fork Heights Apartments
Rio Grande County
80 10 3
Sunshine Mesa Domestic WC
Delta County
76 5 0
Sun Meadow Estates
Garfield County
75 8 0
Sunrise Ranch
Larimer County
75 4 0
Hartman Town of
Prowers County
61 13 6
Elephant Rock MHP
El Paso County
60 6 2
Tall Pines Village
La Plata County
60 8 0
Valley Maint Corp NO 2
Teller County
55 9 2
Blanca Forestry Products
Fort Garland · Costilla County
50 6 0
Cdot Eisenhower Johnson Tunnel
Clear Creek County
50 4 0
Western Metals Recycling
Englewood · Arapahoe County
45 7 0
Wayside
Summit County
40 3 1
Saddlehorn Ranch MD
El Paso County
39 8 1
TV Hills Water
Custer County
38 5 1
Vallecito Village
La Plata County
34 7 2
G and M Mobile Home Park
Rio Grande County
30 11 0
Hidden Springs Ranch
Routt County
27 7 0
Ranch at Coulter Creek HOA
Garfield County
27 10 0
Moffat Town of
Saguache County
12 11 4
Mustang Water Authority
Montrose County
0 7 1
About this data

A system is counted once if any of its violations in the past three years involved Xylenes, Total, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Xylenes, Total alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Colorado records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.