OverviewU.S. Geological Survey's monitoring of stream water at 34 stations in Indiana. Filtered, unfiltered and particulate samples. Initiated 2004. Source Agency: U.S. Geological Survey ContactMartin Risch, Hydrologist, Project Chief Address Phone: 317-290-3333 x163 Fax: 317-290-3313 |
| Name of dataset | Mercury in Streams Monitoring in Indiana |
| Geographic area | Indiana |
| State/Province | IN |
| Activity Category | Monitoring |
| Medium | water |
| Focal species | stream waters |
| Tissue Types | filtered (water), unfiltered (water), particulate (water) |
| Approximate size of dataset | 400 |
| Positional data available? | yes |
| Start Date | 2004 |
| End Date | 2008 |
| Status | Ongoing |
| Collection season | all seasons |
| Current # Of Sampling Locations | 25 |
| Historic # Of Sampling Locations | 34 |
| Size of Sampling Area | streams from a wide range of upstream watersheds; draining over 80% of the state of Indiana |
| Methods | Ultra-clean protocols used; samples are stream-depth, stream-width, and flow-weighted |
| Individual or composite samples? | Individual |
| Ecosystem Focus | watersheds |
| Additional Info | Ultra-clean protocols used in sample collection, processing, and analysis (documented in USGS Report 2008-5176). Samples are individual, but are stream-depth, stream-width, and flow-weighted. QA/QC data includes field replicates and field blanks in electronic format. |
| Data Use | Unrestricted |
| Quality Assurance | yes |
| Data Format | online |
| Hg Measurements | THg, MeHg |
| Hg Measurement Units | ng/L or pg/mL (ppt) |
| Ancillary Data | pH, specific conductance, water temperature, dissolved oxygen, turbidity, instantaneous streamflow, suspended sediment, dissolved organic carbon, dissolved sulfate |
| BRI has data? | location data only |
| Data downloadable on external website? | Data in online archive of USGS National Water Information System database for August 2004-May 2008 (http://waterdata.usgs.gov/in/nwis/qw/); data for August 2004-September 2006 in appendices of USGS Scientific Investigations Report 2008-5176 by Amanda L. Ulberg and Martin R. Risch (http://pubs.usgs.gov/sir/2008/5176/pdf/sir20085176.pdf). |
| Other Databases | NWIS |
| Depth of Water Sample | samples are depth-integrated through full depth of stream |
| Pore Size of Filter | 0.7 |
| Clean Techniques? | Yes |
