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Big Grand Pierre Creek (IL_EPA_WQX-AL-01) 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 illinois epa (identifier IL_EPA_WQX), has the name "Big Grand Pierre Creek" and has the identifier IL_EPA_WQX-AL-01. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)05140203.

This site is located in Pope County County, Illinois at 37.4589300000 degrees latitude and -88.4301400000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.

What other monitoring locations are upstream or downstream from this one?

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.

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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.

What other information is available for this location?

For the definitions of the metadata elements, please go to the Water Quality Portal user guide