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cooperation with FIU and under sub-contract by Cetacean Logic Foundation Inc. (CLF),
only a modified version of their Executive Summary is given in the body of this report,
and the full CLF report is presented as Appendix 1.
SECTION 5: Summary of threats to Biscayne National Park Resources
This chapter summarizes and sets a hierarchy for the most relevant threats posed to
BB water resources. It is intended to improve understanding of BNP resources in order
to help guide BNP management to properly address the identified threats.
SECTION 6: Derivation of Numeric Nutrient Criteria
In this section we discuss the methods and results for the derivation of protective
numeric nutrient criteria for TN, TP and CHLa, approached within the framework of
stressor-response relationships.
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Table 1 Summarized Purposes, Tasks and Goals of the study
PURPOSE TASKS GOALS
Synthesize existing WQ data 1- Literature Review * Provide general overview of WQ
2- Collect data from SFWMD, DERM, conditions in BNP and BB
FIU, CORPS, DBHYDRO and others
3- QA/QC data
4- Statistical Summary
Evaluate XPSWWM 5- Familiarization with project * To evaluate the use of the
concept, components, characteristics hydrologic/hydraulic model XPSWMM
6- Evaluation of Model input/output to and the watershed loading model by
estimate Total Maximum Daily loads an engineering consultant to estimate
7- Preapration of report on findings loads to BB for Miami/Dade County
and conclusions government
Recommended WQ Targets for BNP/BB 8- Review historicalWQ data for BNP * Provide a general overview of WQ in
to prepare a list of selected constituents BNP and a comprehensive list of
ecological indicators and targets ecological indicators and recommend
9- Identify areas of most concern preliminary numeric targets for selected
within BB with focus on BNP surface WQ constituents
10- Organize Expert's Workshop to * Identify areas within BNP that have been
evaluate indicators and targets heavily, moderately and minimally
impacted
BB Box Model development and 11- Develop, calibrate and validate * Develop salinity-residence time
calibration mass-budget calculations, and develop modeling tool for BB waters
approach for estimating nutrient
concentration in response to loadings
Evaluate WQ and ecological 12- Generate and run a series of * Estimate salinity and nutrient
conditions in BB under proposed scenarios in a box-model for BB concentration in BB in response to
Watershed Study alternatives including output from preferred loading scenarios
WPSWMM scenario * Provide classification of areas within
13- Analyze results from proposed BNP from box-modeling results that
alternatives would become heavily, moderately,
and minimally impacted
* Provide comments on preferred
alternative and its impact on BB
ecosystems
Derive Numeric Nutrient Criteria 14- Collect WQ data for South Florida * Estimate TN and TP numeric nutrient
for South Florida Estuaries and estuaries and coastal waters criteria for 40 South Florida sub-basins
Coastal waters 15- Perform necessary QA/QC * Estimate TN and TP numeric nutrient
16- Develop a classification South Florida criteria for 40 sub-basins
water types
17- Derive protective Numeric Nutrient
Criteria for TP and TN
Summarize Findings 18- Prepare Final Report * Present recommendations to
Watershed Advisory Committee
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SECTION 1:
DATA COLLECTION AND QUALITY
ASSESSMENT/QUALITY CONTROL
DATA SOURCES
The report presented herewith is an assessment of the conditions of water
resources in BB, including BNP, and its relationship to biotic resources. The study is
based on the evaluation of existing information on the bay natural resources, especially
long-term data generated by networks of monitoring stations established in and around
BB and its watershed. Additionally, data from individual research projects from various
institutions dealing with diverse natural resources have been incorporated in our
database (Appendix 2 and 3).
The most important sources of WQ data for South Florida (SoFlo) are the
following:
i. NOAA/UM/RSMAS: Under the NOAA/AOML/South Florida
Program surveys are conducted to study the hydrography and
water quality of South Florida. These cruise surveys collect data for
temperature, salinity, percent light transmission at l=660nm,
chlorophyll a fluorescence, and CDOM fluorescence. In addition to
the underway measurements, there are discrete sampling
observations taken at stations which are used to calibrate the
underway instrumentation and calibrate supplementary data. The
result is a quickly produced, high spatial resolution ―snapshot‖ of
the temperature, salinity and water quality parameters for SoFlo
ecosystem. No detection limit data is provided.
(http://www.aoml.noaa.gov/sfp/data.shtml).
ii. DERM. The Biscayne Bay Surface Water Quality Monitoring
Program is an ongoing routine surface water quality sampling
program for BB and its watershed canals. The program began in
1979 and includes monthly surface water sampling for relevant WQ
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parameters to our research. DERM monitoring dataset included
chlorophyll a (CHLa), color, turbidity, total Kjeldahl nitrogen (TKN)
and orthophosphate (TPO4) sampled bimonthly; and coliforms
(total and fecal), total ammonia (TNH3), nitrite+nitrate (NOx), and
total phosphorus (TP), which were sampled monthly. Additionally,
field measurements included, dissolved oxygen (DO), salinity,
temperature, specific conductance, pH, photosynthetically active
radiation (PAR), turbidity and apparent water color. Analysis for
cadmium, copper, lead and zinc as well as total suspended solids
were performed quarterly at over 105 stations throughout MiamiDade County. Updated data was kindly supplied by Mr. Steve Blair.
(http://www.gcrc.uga.edu/wqmeta/app/organizations.asp)
iii. USGS. Hydrological and water quality data has been recorded by
many diverse research programs in the Everglades, Florida Bay