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Files related to the publication Ledford, SH and L Toran. In revision. Downstream evolution of wastewater treatment plant nutrient signals using high-temporal monitoring. Hydrological Processes. Funded by the William Penn Foundation. Questions: sledford@gsu.edu. Data collected on Sandy Run, a tributary to Wissahickon Creek, in Montgomery County, PA. Contains three files: (1) Ledford2019_SR_temporal_data is QA/QCed logger data collected at hourly intervals at the two main sites and at 15 minute intervals below the wastewater treatment plants. Data include depth, temperature, specific conductivity, dissolved oxygen, nitrate, and phosphate, although all parameters were not collected at all sites. (2) Ledford2019_SR_Modeling_results includes StreamMetabolizer (Appling et al. 2018) modeling results for GPP and ER. (3) Ledford2019_SR_modeling_fits includes modeled DO from StreamMetabolizer.

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This dataset is the data used in: Ledford, SH, MJ Kurz, and L Toran. 2021. Contrasting Raz-Rru stream metabolism and nutrient uptake downstream of urban wastewater effluent sites, Freshwater Science 40(1).

It contains chemistry from grab samples taken during Raz/Fluorescein plateau injections at two sites in September 2019. Samples were also analyzed for nitrate, chloride, and total dissolve phosphorus. Uptake calculations for Raz, nitrate, and phosphorus are included. A range of sites (see paper for description) had loggers collecting 15-minute data which included depth, temperature, dissolved oxygen, specific conductivity, and pH. Also included are the full records from three fluorometers that were deployed during each test, collecting at 10-second intervals. The ReadMe file include more information about the injection tests and analyses. -9999 is a placeholder throughout for missing data.

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Data collected from surface (SW) and groundwaters (GW) in Meadowbrook Creek, Syracuse, NY. This is a suburbanized watershed, with a more urban headwaters that has a straightened channel, disconnected from groundwater, that runs through the middle of a two-lane road. Further downstream, the stream is more naturalized, with more classic morphology (pools, riffles, and meanders) and extensive SW-GW connectivity. In the lowest reaches of the stream, 5 riparian floodplain wells were installed, and their chemistry is reported here. Samples were collected from May 2012 to June 2013. Samples were analyzed for specific conductivity (reported in mS/cm, not uS/cm), temperature, fluoride, chloride, nitrate, sulfate, sodium, potassium, magnesium, and calcium. Ion concentrations were analyzed on a Dionex ICS-2000. Along with concentrations, error is reported for each ion, calculated as three times the standard deviation or re-runs of a single standard of that run. -9999 indicates a sample was not collected/analyzed, and -9998 means the sample was below the detection limit of that run (did not have a peak for that ion for that run, indicating concentration was below the detection limit). Data have been used in many papers, listed in Related Resources.

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These are the datasets used in the paper Ledford, SH, Diamond, J, and L Toran. 2021. Large spatiotemporal variability in metabolic regimes for an urban stream draining four wastewater treatment plants with implications for dissolved oxygen monitoring. PLOS One.
The first dataset (DO_QAQC.csv) contains 15- and 30-minute dissolved oxygen concentrations for nine sites in the Wissahickon Creek watershed, monitored from April 1, 2017 to May 8, 2018. Seven sites were monitored by the authors and all data are in 15-minute intervals, while two sites are monitored by the Philadelphia Water Department/USGS except in winter, and data are in 30-minute intervals. All DO data have been through a QAQC process and data that failed the process have been removed. In addition to DO concentration, DO as percent saturation (calculated using temperature), average water depth at the site, and logger type used to collect the DO measurement are reported. The second dataset (StreamMetab_Results.csv) includes results from running the StreamMetabolizer.R code on the DO_QAQC.csv data. Once again, model results that failed the QAQC process have been removed. In addition, diel minimum, maximum, and mean DO concentrations were calculated for each day and are reported here, along with DO amplitude, which is the maximum DO minus minimum. The third sheet (QAQC_Summary.xlsx) summarizes data that were removed from StreamMetab_Results.csv during the QAQC process.

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Working database for NSF-funded southeastern urban beaver project (Atlanta, GA; Charlotte, NC; and Durham, NC). Data will be added as papers are published, with clear indication of which dataset is used for each paper.
Latitude and longitude coordinates for sampling sites are in the Urban Ecosystems paper.
Currently this resource contains a .csv file of chemistry of grab samples collected from March 11, 2021-December 10, 2021 and used in the 2023 submission to Urban Ecosystems.

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Major ion geochemistry and isotopes of nitrate for the Tapestry beaver pond in Atlanta, GA. Samples were collected from the surface from June 2019-March 2020 and from the hyporheic zone from June-August 2019. Logger data (DO and specific conductance at 10 minute intervals) were also collected from June-August 2019. Isotopes of nitrate (d15N and d18O) were measured for a subset of June-August 2019 surface and hyporheic samples. Data were used in the paper "Urban beaver dam shows hyporheic exchange helps mediate high nutrient groundwater and a high productivity pond"