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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 >  U_NH01 >  U_NH01-SLM05NL

SILVER LAKE-MADISON-5 NORTH (U_NH01-SLM05NL) site data in the Water Quality Portal

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

This lake site, maintained by the UNIVERSITY OF NEW HAMPSHIRE (identifier U_NH01), has the name "SILVER LAKE-MADISON-5 NORTH" and has the identifier U_NH01-SLM05NL. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)01060002.

This site is located in Carroll County County, New Hampshire at 43.8813420000 degrees latitude and -71.1739490000 degrees longitude using the datum NAD83. The horizontal location collection method was "GPS Code (Pseudo Range) Differential" and the accuracy is 15 m.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "U_NH01-SLM05NL" 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 2015 - 2015
Information 2015 - 2015
Inorganics, Major, Non-metals 2015 - 2015
Nutrient 2015 - 2015
Physical 2015 - 2015
*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 U_NH01
OrganizationFormalName UNIVERSITY OF NEW HAMPSHIRE
MonitoringLocationIdentifier U_NH01-SLM05NL
MonitoringLocationName SILVER LAKE-MADISON-5 NORTH
MonitoringLocationTypeName Lake
HUCEightDigitCode 01060002
LatitudeMeasure 43.8813420000
LongitudeMeasure -71.1739490000
HorizontalAccuracyMeasure/MeasureValue 15
HorizontalAccuracyMeasure/MeasureUnitCode m
HorizontalCollectionMethodName GPS Code (Pseudo Range) Differential
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 33
CountyCode 003
ProviderName STORET