|Ua||Upper a (Kingston)|
|Ub||Upper b (Cataldo)|
|Uc||Upper c (Dudley)|
|Ma||Middle a (Rose Lake)|
|Mb||Middle b (Lane)|
|Mc||Middle c (Killarney)|
|La||Lower a (Medimont)|
|Lb||Lower b (Blue Lake)|
|Lc||Lower c (Harrison)|
|Ld||Lower d (delta front)|
|Ldu||delta front, upper (east boundary)|
|Ldl||delta front, lower (west boundary)|
|Range of values|
|Units:||nominal; the numbers are identifiers|
Scott Prevatte helped with the preparation of ArcView GIS files used in our preliminary definition of Estimation units. John Wallis wrote the metadata, Gary Raines reviewed the digital data files and Metadata.
This data set was prepared as part of an effort to portray the distribution, character, quantity, and Pb content of Pb-rich sediment in the CdA River valley. This is basic information needed to estimate the extent of environmental damage, and evaluate alternative strategies for environmental remediation and restoration.
Are there legal restrictions on access or use of the data?
Use_Constraints:Any hardcopies utilizing these data sets shall clearly indicate their source. If the users have modified the data in any way they are obligated to describe the type of modifications they have performed. User specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the U.S. Geological Survey.
The U.S. Geological Survey (USGS) provides this data "as is". The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although this data has been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of this data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by the USGS.
|Data format:||Point and line segments data with attributes in format Shapefile (version 1.0) Size: 3.4|
|Data format:||Lead concentration points and polygons, river features for geographic context in format Shapefile (version 1.0) Size: 3.4|