Skip to main content

Important for you to know:

  • New to WDFN: explore current and historic water data available in your area of interest and filter to find monitoring locations that collect the water data you need through Explore USGS Water Data. To learn more, read our announcement on the Water Data for the Nation blog.

Groff Creek nr Center Square, PA - 01576303

No graph available - there are no continuous, daily, or field measurement data types available for this location.

Available data

Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories

Continuous data

0 data types available

Daily data

0 data types available

Field measurements

0 data types available

Discrete sample data

44 Observed properties (data types) available - with data from 2023-05-17 to 2023-07-18
2 Sampling activities
Discrete sample data are derived from manual field collection and laboratory analysis of physically collected samples collected during a visit to the monitoring location.

The table below summarizes the discrete field and laboratory sample results that have been collected at this monitoring location. The sample results can be downloaded from the Download Discrete Sample Data  page or by clicking the observed property link in each row of the table. The sample data are now identified by observed property, replacing the parameter and pcode USGS has used for many years. Additional information and explanation is provided in the Observed Properties and Parameter Codes section of the Code Dictionary tools .

The summary of sample data table is produced with the summary service API

Select column to filter:
Available sample data
Characteristic group Observed property Total number of results Total number of activities Start date End date
InformationBottle or bag sampler material (construction)222023-05-172023-07-18
InformationNWIS lot number, capsule filter, 0.45 micron222023-05-172023-07-18
InformationNWIS lot number, hydrochloric acid, 6 normal (1:1), 2 milliliters, National Field Supply Service (NFSS) stock number Q446FLD222023-05-172023-07-18
InformationNWIS lot number, nitric acid, 7.5-7.7 normal, 2 milliliters, National Field Supply Service (NFSS) stock number Q436FLD222023-05-172023-07-18
InformationNWIS lot number, sulfuric acid, 4.5 normal (1:7), 1 milliliter, National Field Supply Service (NFSS) stock number Q438FLD222023-05-172023-07-18
InformationNumber of sampling points222023-05-172023-07-18
InformationSample location, distance downstream112023-05-172023-05-17
InformationSampler nozzle diameter222023-05-172023-07-18
InformationSampler nozzle material222023-05-172023-07-18
InformationSampling depth112023-05-172023-05-17
InformationType of sample splitter, field222023-05-172023-07-18
InformationWorld Meteorological Organization (WMO) weather code112023-05-172023-05-17
Inorganics, Major, Non-metalsHydrogen ion, water, unfiltered, calculated222023-05-172023-07-18
Inorganics, Major, Non-metalsAlkalinity as calcium carbonate, water, filtered, fixed endpoint (EP) (pH 4.5) titration, laboratory222023-05-172023-07-18
Inorganics, Major, Non-metalsCarbon dioxide, water, unfiltered222023-05-172023-07-18
Inorganics, Major, Non-metalsChloride, water, filtered222023-05-172023-07-18
Site Location
Legend
  • Map markerMonitoring Location
  • Active Monitoring Locations
5 km
3 mi
Leaflet USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.