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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 legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  21NEV1_WQX >  21NEV1_WQX-LM4

Lake Mead below Overton Marina (21NEV1_WQX-LM4) site data in the Water Quality Portal

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

This lake site, maintained by the Nevada Division of Environmental Protection (identifier 21NEV1_WQX), has the name "Lake Mead below Overton Marina" and has the identifier 21NEV1_WQX-LM4. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)15010005.

This site is located in Clark County County, Nevada at 36.4439812000 degrees latitude and -114.3538971000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of 1257.00 ft No vertical location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21NEV1_WQX-LM4" 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*
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2001 - 2001
Inorganics, Major, Non-metals 2001 - 2001
Nutrient 2001 - 2001
Physical 2001 - 2001
*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 21NEV1_WQX
OrganizationFormalName Nevada Division of Environmental Protection
MonitoringLocationIdentifier 21NEV1_WQX-LM4
MonitoringLocationName Lake Mead below Overton Marina
MonitoringLocationTypeName Lake
MonitoringLocationDescriptionText SPECIAL STUDIES SAMPLING SITE SAMPLED ONE TIME
HUCEightDigitCode 15010005
LatitudeMeasure 36.4439812000
LongitudeMeasure -114.3538971000
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 1257.00
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName SEALV
CountryCode US
StateCode 32
CountyCode 003
ProviderName STORET