Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  21COL001_WQX >  21COL001_WQX-5672

MAD CREEK @ HWY 40 (21COL001_WQX-5672) site data in the Water Quality Portal

Data Provider: STORET (Learn more about Water Quality Portal Data Providers)

This river/stream site, maintained by the Colorado Dept. of Public Health & Environment-WQCD (identifier 21COL001_WQX), has the name "MAD CREEK @ HWY 40" and has the identifier 21COL001_WQX-5672. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)10190004.

This site is located in Clear Creek County County, Colorado at 39.7614830000 degrees latitude and -105.7001170000 degrees longitude using the datum WGS84. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21COL001_WQX-5672" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Inorganics, Major, Metals 2011 - 2012
Inorganics, Major, Non-metals 2010 - 2012
Inorganics, Minor, Metals 2010 - 2012
Inorganics, Minor, Non-metals 2010 - 2012
Microbiological 2010 - 2010
Nutrient 2010 - 2012
Physical 2010 - 2012
Radiochemical 2011 - 2012
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier 21COL001_WQX
OrganizationFormalName Colorado Dept. of Public Health & Environment-WQCD
MonitoringLocationIdentifier 21COL001_WQX-5672
MonitoringLocationName MAD CREEK @ HWY 40
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 10190004
LatitudeMeasure 39.7614830000
LongitudeMeasure -105.7001170000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName WGS84
CountryCode US
StateCode 08
CountyCode 019
ProviderName STORET