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Baseflow water isotopic composition (δD, δ18O) of Reedy Creek, tributaries, and shallow groundwater, Charlotte, NC, before and after stream restoration, 2016-2021
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Storage: The size of this resource is 30.5 KB
Created: Sep 16, 2025 at 4:17 p.m. (UTC)
Last updated: May 28, 2026 at 3:26 p.m. (UTC) (Metadata update)
Published date: May 28, 2026 at 3:26 p.m. (UTC)
DOI: 10.4211/hs.6f9b5e51d54f4feeb169b2336629ef56
Citation: See how to cite this resource
Content types: CSV Content 
Sharing Status: Published
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Abstract

To examine differences in watershed-scale residence time using water isotopes (δD, δ18O) , 907 baseflow water samples were collected between 2016 and 2021 at Reedy Creek Restoration Project, located in the 6km2 headwaters of Reedy Creek, an urban forest stream in Charlotte, North Carolina (USA). Samples were collected using a nested watershed approach from eleven sites. The eleven sites were sampled approximately monthly and a subset of five sites were sampled approximately weekly. In addition, ten shallow wells were sampled approximately quarterly. This resource contains a table of δD and δ18O values and a table of site information for the stream and groundwater sampling sites.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Reedy Creek Nature Preserve
North Latitude
35.2707°
East Longitude
-80.6988°
South Latitude
35.2553°
West Longitude
-80.7204°

Temporal

Start Date:
End Date:

Content

readme.txt 

Methods: 907 filtered baseflow samples were collected 2016-2021, stored in borosilicate glass scintillation vials with cone-lined caps, sealed with paraffin film, and analyzed using a LGR DLT-100 laser water isotope analyzer. Analysis was calibrated using commercially obtained working standards which were repeated every approximately 10 injections to check for instrument drift. δD and δ18O are reported relative to the VSMOW standard. For samples analyzed in replicate, reported values are the average of replicates. Estimated one-sigma analytical precision is 0.4‰ for δ18O and 0.7‰ for δD.

File list:
Table 1 - Isotope data. 
Table 2 - Site information. Stream sampling locations shifted slightly pre- vs. post-restoration, so reported latitudes and longitudes are approximate.  Three wells were replaced during the study (C1-U, C1-R, and A1-R), so the reported latitudes and longitudes of those wells are approximate.

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Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Charlotte Mecklenburg Stormwater Services None None

How to Cite

Vinson, D. S., S. M. Clinton, D. Petitt (2026). Baseflow water isotopic composition (δD, δ18O) of Reedy Creek, tributaries, and shallow groundwater, Charlotte, NC, before and after stream restoration, 2016-2021, HydroShare, https://doi.org/10.4211/hs.6f9b5e51d54f4feeb169b2336629ef56

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
CC-BY

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