PlainWater
Counties → Colorado

Denver County, Colorado

Water Systems
5
Population Served
1,312,794
Total Violations
487
8 health-based
PFAS Detected
1
of 2 tested

Violation Analysis

80.0%
Systems with Violations
97.4
Avg Violations per System
1.6%
Health-Based Violations

Water Source Types

SW
5 systems (100%)

PFAS Contamination

2
Systems Tested
1
PFAS Detected
50.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Denver Colorado water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (4)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Denver Water Board 1,287,000 383 Clean
Cherry Creek Valley WSD 22,000 0 -
Advenir French Quarter 3,447 98 Clean
Aspen Terrace Mobile Park 200 2 -
Longview Mobile Home Park 147 4 -

Other Counties in Colorado

Arapahoe County
40 systems · 864,434 served · 5,553 violations
El Paso County
140 systems · 757,938 served · 21,020 violations
Adams County
86 systems · 711,442 served · 11,205 violations
Jefferson County
113 systems · 577,729 served · 5,182 violations
Larimer County
136 systems · 519,497 served · 9,218 violations
Boulder County
82 systems · 428,472 served · 7,231 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Denver County? ▼
Denver County has 487 total drinking water violations across 5 water systems, of which 8 are health-based violations. 80.0% of systems have at least one violation.
How many people get water from Denver County systems? ▼
Water systems in Denver County serve approximately 1,312,794 people through 5 public water systems.
Has PFAS been detected in Denver County water? ▼
Of 2 water systems tested for PFAS in Denver County, 1 had PFAS detected (50.0% detection rate).
What types of water sources supply Denver County? ▼
Water systems in Denver County use SW (5 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 1.6% of Denver County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.