Dataset Submitted

Water Quality samplings from stormwater canal locations within Halifax River Watershed, Florida

Authors: Hyun Jung Cho; Imani Ford
Identified On: Jun 03 2025 16:27 UTC
DOI: https://doi.org/10.7266/makmsf08
UDI: NO.x849.000:0002
Project Information

Funded By:
National Oceanic and Atmospheric Administration, Office of Education Educational Partnership Program

Research Group:
Center for Coastal and Marine Ecosystems

Point of Contact

Hyun Jung Cho
Bethune-Cookman University
choh@cookman.edu

Data Collection Period
2023-10-04
to
2024-07-05
Theme keywords

Water Quality, Stormwater Canals

Abstract:

Water quality monitoring was conducted over nine months, from October 2023 to June 2024, at seven designated sampling sites (Coordinates provided in the metadata) located within three stormwater outfalls discharging into the Halifax River, Florida. Sampling occurred bi-weekly, with in-situ water quality measurements recorded and water samples collected for laboratory analysis. Key in-situ parameters measured included temperature, pH, salinity, and dissolved oxygen (DO). At the same time, laboratory analyses focused on turbidity, Total Suspended Solids (TSS), Total Kjeldahl Nitrogen (TKN), orthophosphate, nitrate, and ammonia. To ensure consistency, all measurements and sample collections were conducted between 9 AM and 3 PM local time.

Suggested Citation:

Hyun Jung Cho; Imani Ford. Water Quality samplings from stormwater canal locations within Halifax River Watershed, Florida. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/makmsf08

Purpose:

The data was collected part of a NOAA CCME II funded thesis research. The thesis research investigated long-term water quality trends, stormwater characteristics at urban outfalls, and storm surge vulnerability of infrastructure and populations within the watershed. The specific objective for this dataset collection was to monitor in-situ stormwater conditions within the Halifax River urban watershed, Florida.

Data Parameters and Units:

Parameter Abbreviation Parameters Measured TEMP (°C) Temperature DO (%) Dissolved Oxygen percentage DO CONC. (mg/L) Dissolved Oxygen Concentration SALINITY (PPT) Salinity pH pH TURBIDITY (FAU) Turbidity TSS (mg/L) Total Suspended Solids AMMONIA (mg/L) Nitrogen, Ammonia TKN (mg/L) Total Kjeldahl Nitrogen NITRATE (mg/L) Nitrogen, Nitrate ORTHOPHOSPHATE (mg/L) Orthophosphate

Methods:

A YSI Professional Digital System Sampling non-GPS Multiparameter Meter – 626870-1 (15L100506 probe, 15L102586 handheld, YSI.com) was used to record in-situ water quality parameters at all seven sites. These parameters included pH, dissolved oxygen saturation (%), dissolved oxygen concentration (mg/L), salinity (ppt), and temperature (°C). Figures 5 and 6 show researcher Imani Ford collecting water quality and nutrient samples using a Van Dorn water sampler to obtain representative water samples for further analysis. Water samples, ranging in volume from 300 ml to 500 ml to ensure enough of the water sample was collected to determine the turbidity and TSS in the Bethune-Cookman laboratory, were collected at each site using the Van Dorn water sampler and immediately transferred to prelabeled Nalgene bottles. Laboratory analyses were conducted at Bethune-Cookman University’s water quality laboratory, where turbidity was measured using a DR820 Portable Colorimeter (HACH, Colorado). Total Suspended Solids (TSS) concentrations were determined using Pyrex and KimCote filter flasks, Gast (model # DOA-P104-AA) vacuum pumps, Whatman 42.5mm microfiber filters, a Gelman Science magnetic filter funnel, and a Wilmad LabGlass filter funnel.