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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 >  NWIS >  USGS-PA >  USGS-394608076150801

CO 08.01 Conowingo Reservoir (USGS-394608076150801) site data in the Water Quality Portal

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

This lake, reservoir, impoundment site, maintained by the USGS Pennsylvania Water Science Center (identifier USGS-PA), has the name "CO 08.01 Conowingo Reservoir" and has the identifier USGS-394608076150801. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02050306. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 27100 sq mi.

This site is located in Lancaster County County, Pennsylvania at 39.76899290000000 degrees latitude and -76.2519007000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 1 seconds. The source map scale is 1:24000.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-394608076150801" 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*
Information 1990 - 1992
Inorganics, Major, Metals 1990 - 1992
Inorganics, Major, Non-metals 1992 - 1992
Inorganics, Minor, Metals 1990 - 1992
Inorganics, Minor, Non-metals 1992 - 1992
Nutrient 1990 - 1992
Organics, Other 1990 - 1992
Organics, PCBs 1992 - 1992
Organics, Pesticide 1992 - 1992
Physical 1990 - 1990
Radiochemical 1992 - 1992
Sediment 1990 - 1992
*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 USGS-PA
OrganizationFormalName USGS Pennsylvania Water Science Center
MonitoringLocationIdentifier USGS-394608076150801
MonitoringLocationName CO 08.01 Conowingo Reservoir
MonitoringLocationTypeName Lake, Reservoir, Impoundment
HUCEightDigitCode 02050306
DrainageAreaMeasure/MeasureValue 27100
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 39.76899290000000
LongitudeMeasure -76.2519007000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 42
CountyCode 071
ProviderName NWIS