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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 user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  11113300 >  11113300-00-MAR

MAD R. CONFLUENCE WITH COCHECO (11113300-00-MAR) 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 New Hampshire Department Of Environmental Services (BEACH) (identifier 11113300), has the name "MAD R. CONFLUENCE WITH COCHECO" and has the identifier 11113300-00-MAR. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)01060003.

This site is located in Strafford County County, New Hampshire at 43.3865440000 degrees latitude and -71.0682940000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of 295 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 "11113300-00-MAR" 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*
Microbiological 2006 - 2006
Physical 2000 - 2006
*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 11113300
OrganizationFormalName New Hampshire Department Of Environmental Services (BEACH)
MonitoringLocationIdentifier 11113300-00-MAR
MonitoringLocationName MAD R. CONFLUENCE WITH COCHECO
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 01060003
LatitudeMeasure 43.3865440000
LongitudeMeasure -71.0682940000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 295
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 33
CountyCode 017
ProviderName STORET