ERD Clients and Projects
 
 

 

St. Lucie Water Quality Data Collection Program


CLIENT INFORMATION
CLIENT: South Florida Water Management District
CONTACT: Dan Crean (561-753-2400, x4613)
PROJECT DATES: 2001-2003
PROJECT MANAGER/DIRECTOR: Dr. Harvey H. Harper, P.E.
DIRECTOR OF FIELD OPERATIONS: Chip Harper
LABORATORY DIRECTOR: Vanessa Permaul


PROJECT BUDGET AND SCHEDULE
PROJECT BUDGET: $198,792
FINAL COST: $198,792
PROPOSED SCHEDULE: 18 months
ACTUAL COMPLETION TIME: 18 months


PROJECT INFORMATION
Location of Nutrient Input and Estuarine Monitoring SitesAn extensive surface water quality monitoring program was conducted by ERD within the St. Lucie Estuary from 2001-2002. Field monitoring was performed at 6 significant inflows into the St. Lucie Estuary which included Five Mile Creek, South Fork of the St. Lucie River, North Fork of the St. Lucie River, Blakeslee/Winters Creek, Bessie Creek, and Poppleton Creek. Monitoring at each of these sites included field measurements of flow rates using the USGS-recommended velocity/cross-sectional area method, vertical field profiles, and collection of surface water samples for laboratory analyses of nutrients, TSS, chlorophyll-a, and microbiological parameters. All field and laboratory activities were conducted exclusively by ERD. The results of the monitoring program were used to provide estimates of mass loadings from each of the tributaries into the St. Lucie Estuary under dry and wet season conditions.

Comparison of Seasonal Mass Inputs of Total Nitrogen into the St. Lucie Estuary

Surface water monitoring was also conducted at 8 sample sites located within the St. Lucie Estuary and Intracoastal Waterway. Vertical profiles of physical-chemical parameters and photosynthetically active radiation (PAR) were conducted at each site, and surface water samples were collected from surface and bottom locations. The collected samples were analyzed in the ERD Laboratory for nutrients, TSS, and chlorophyll-a. All field and laboratory activities were performed exclusively by ERD. The results of these monitoring activities were used to evaluate changes in water quality characteristics throughout the estuary and to evaluate cause and effect relationships between tributary inflows and estuary water quality.

 

 

 

 

 

 

 


RELEVANT WORK PRODUCTS

  • Field monitoring of tributary flow rates and collection of surface water samples under both wet and dry season conditions
  • Development of estimated wet season and dry season hydrologic inputs from the evaluated tributaries
  • Development of wet season and dry season mass loadings from evaluated tributaries
  • Extensive monitoring of estuary characteristics, including vertical field profiles and photosynthetically active radiation
  • Laboratory analyses on collected surface water samples
  • Evaluation of cause and effect relationships between pollutant loadings and estuary water quality characteristics
  • Statistical evaluation of data
  • Preparation of extensive Draft and Final Reports

 

 

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