What environmental databases are included?

This page aggregates data from eight EPA databases: Safe Drinking Water (SDWIS), Superfund/NPL sites, Toxic Release Inventory (TRI), Air Quality Index (AQI), Leaking Underground Storage Tanks (LUST), NPDES water discharge permits, RCRA hazardous waste, and Brownfields.

What does the Air Quality Index (AQI) mean?

AQI is measured on a scale from 0 to 500. Values under 50 are 'Good,' 51-100 is 'Moderate,' and above 100 is 'Unhealthy for Sensitive Groups.' AQI is measured at the county level since air quality monitoring stations are sparse. Your town shares its county's AQI reading.

What is a Superfund site?

A Superfund site is a location contaminated by hazardous waste that has been placed on the EPA's National Priorities List (NPL) for long-term cleanup. These sites pose serious risks to human health and the environment. Cleanup can take decades and cost hundreds of millions of dollars.

Milliken, CO Water Quality, EPA Sites & Air Quality Data

Environmental Reporti

Air Qualityi

52Moderate

Water Systemsi

Water Violationsi

TRI Facilitiesi

Active NPDESi

11/ 72 total

Air Quality — Weld County (2025)i

AQS

The Air Quality Index measures how clean or polluted the air is on a given day. AQI is reported at the county level. A score of 0–50 is considered good; 51–100 is moderate; above 100 may be unhealthy for sensitive groups.

Moderate

Median AQI

050100150200300

max 119

PM2.5 Daysi

Ozone Daysi

194

Drinking Wateri

SDWIS

Public water systems registered to serve this area. Community systems (CWS) provide water to residents year-round. Transient systems serve places like gas stations or restaurants. Violations indicate a system failed to meet federal drinking water standards.

Community Systemsi

Active Systemsi

Recent Violationsi

Community (2)

Recent Violations (Last 5 Years)

MILLIKEN TOWN OF

9 violationsLatest: 2025-01-01

EPA

Toxic Release Inventory (TRI)i

TRI

Factories, refineries, and other industrial facilities that use or store hazardous chemicals are required to report their releases annually to the EPA. Being listed here does not mean a violation occurred — it means the facility is transparently tracking its chemical usage.

Reporting Facilitiesi

With Chemical Datai

BURNCO COLORADO LLC - MILLIKEN315 FRONTIER CT2 chemicals|TRI

ALL AMERICAN HOMES OF COLORADO LLC3333 E CENTER DR1 chemical|TRI

Wastewater & Stormwater Permits (NPDES)i

NPDES

Under the Clean Water Act, any facility that discharges wastewater or stormwater into rivers, lakes, or streams must hold an NPDES permit. "Effective" means the permit is currently active and the facility is authorized to discharge under its permit conditions.

Active Permitsi

Expired / Terminatedi

QUENTINE STORMWATER CROSSING PROJECTEAST OF S QUENTINE AVE AND NORTH OF BOBCAT DRMinor Discharge|EPA

BOOTH LAND AND LIVESTOCK - MILLIKEN11359 WELD CO. RD. 52Minor Discharge|EPA

MILLIKEN REVERSE OSMOSIS WTP400 INEZ BLVDMinor Discharge|EPA

BERNHARDT GRAVEL MINE315 FRONTIER CTMinor Discharge|EPA

MILLIKEN SANITATION DISTRICT2681 ASH STPOTW|EPA

TWO RIVERS SAND, GRAVEL AND RESERVOIR PROJECT14822 CR 396Minor Discharge|EPA

BLACK MOUNTAIN EXCAVATION2705 CENTER DRIVEMinor Discharge|EPA

MILLIKEN-JOHNSTOWN FIBER INSTALLATIONHWY 60 AND N QUENTIN AVENUEMinor Discharge|EPA

PUBLIC WORKS DRAINAGE IMPROVEMENTS2951 E ASH ST.Minor Discharge|EPA

PLATTE SAND AND GRAVEL10500 CR 38Minor Discharge|EPA

BURNCO COLORADO - BERNHARDT BATCH PLANT315 FRONTIER CTMinor Discharge|EPA