A Review of the Florida Keys Carrying Capacity Study (2002) / Chapter Skim
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Appendix D Detailed Comments and Questions
Appendix D Detailed Comments and Questions
Pages 114-166
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From page 114... ...
SCENARIO GENERATOR . · Correct the planning unit labels on Figure 2.3 per the response to Question #12 in Appendix D
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From page 115... ...
The hotel rooms per transient person variable uses independent population projections as a basis for estimating transient persons. The employment per 1,000 square feet of gross floor area variable comes from the Monroe County tax roll database and County Business Patterns.
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From page 116... ...
It is unclear as to why they are based on historical data for each planning unit rather than on design principles. For variables 29-31, it is uncertain whether population per household can really be held constant across low, medium, and high-density dwelling units.
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From page 117... ...
The range from red to yellow to green for the threshold for affordable housing index seems to be a narrow range. FISCAL MODULE The description of the trip generation method is not consistent with the equations detailed in Appendix C, nor does Appendix C fully explain how trips are apportioned among the planning units.
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From page 118... ...
Sea-level rise as determined by the Key West tide gauge (NOAA website) is modest, on the order of 1 inch per decade.
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From page 119... ...
Because FIRM maps are established relative to a base flood elevational datum, the application of SLR would cause the inundation lines to shift through time to accommodate the changing base. Indeed, if the existing FIRM maps are a decade or more old, their utilization and subsequent projection several decades hence is under-estimating the flood potential (as applied in the Smart Growth Scenario, Residential, p.
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From page 120... ...
See the expanded draft report on the socioeconomic module, "Documentation of Socioeconomic Module for the Florida Keys CCAM" (DOB) for a more complete description of these relationships.
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From page 121... ...
The discrepancy in Key West is being evaluated. The population calculated for the Smart Growth Scenario is lower because it is calculated on the same land use database.
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From page 122... ...
to each of the defined land uses, and this coefficient value is consistent with Monroe County's adopted Stormwater Management Master Plan (CDM, 2001~. Parking lots are not treated as a separate component of the parcel, but are included as an aggregate component of the parcel.
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From page 123... ...
12. Where are the following planning units (not shown on Figure 2.3~: (1)
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From page 124... ...
24~? The PC codes from the Monroe County Property Appraiser's tax roll were used to identify which lands are in public ownership.
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From page 125... ...
27~? The density and intensity coefficients used come directly from current regulations contained in the Monroe County and City of Key West Land Development Regulations.
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From page 126... ...
Is such an effort beyond the scope of the current contract? Data creation is out of the scope of the project but, corrections have been made, to the extent possible, using hard copy zoning maps for Monroe County, Key West, Layton, and Key Colony Beach.
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From page 127... ...
In other words, can a user specify a set of property parcels within a planning unit to which they want redevelopment to be applied and thereby define their own criteria for which parcels are to be redeveloped? Does this process apply to retrofit scenarios as well?
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From page 128... ...
How is the assignment accomplished if the target area is a specified set of property parcels within a planning unit? The dwelling units get assigned based on their suitability ranking.
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From page 129... ...
If the target area is an entire planning unit, where do the new commercial units get assigned under each of the magnitude options? How is the assignment accomplished if the target area is a specified set of property parcels within a planning unit?
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From page 130... ...
This report shows that the residential component of the Smart Growth Scenario IS consistent with independent
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From page 131... ...
Does it include tourists? The CCI was used as a means of responding to strip commercial development and the phenomenon of linear trade areas discussed in the report entitled "Socioeconomic Environment of the Florida Keys." (DOW.
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From page 132... ...
The purpose of the AHI is to identify the areas in which future housing development that is affordable by moderate-income households is more likely to take place. These locations are discussed in "Demographic and Economic Analysis of Alternative Development Scenarios in the Florida Keys" (DOB)
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From page 133... ...
This indicates that this portion of the Smart Growth Scenario is achievable within the two decades if the population projections occur.
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From page 134... ...
51. There are references to the Monroe County Wastewater and Stormwater Master Plans, especially on p.
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From page 135... ...
The Florida Keys have very little conventional drainage infrastructure and virtually no treatment facilities. Existing facilities are generally not mapped and no data is available on the actual discharge characteristics of stormwater runoff to the receiving waters.
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From page 136... ...
The pollutants contained in the percolated runoff volume are numerically processed by the Groundwater Component, which provides treatment based upon a user manipulated look-up table that assigns a removal coefficient (% mass reduction) for each of the evaluated pollutants, and this coefficient value is consistent with available literature in the Florida Keys.
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From page 137... ...
Impervious area coefficient values for specific land uses that are used in CCAM are based on common drainage practices in Florida, and are consistent with the runoff coefficient values in Monroe County's adopted Stormwater Management Master Plan (CDM, 2001~. Specific runoff coefficient values are discussed in detail in the Stormwater Component section of the Delivery Order-8 Report.
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From page 138... ...
Virtually no structural stormwater BMPs exist in the Florida Keys and no Keys-specific test data has been identified during the development of the CCAM. Consequently, we utilized the BMP treatment performance characteristics from Monroe County's adopted Stormwater Management Master Plan, which were generally derived from reported literature values from field tests.
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From page 139... ...
Best available technology (BAT) The listed general wastewater treatment technologies and associated effluent characteristics standards in Table 3.12 are referenced from Monroe County's adopted Sanitary Wastewater Master Plan (Master Plan)
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From page 140... ...
Records did not correlate wastewater treatment or EDU information with specific lots. Although the Master Plan estimates the distribution of total number of permitted systems, ATU's and unknown systems in Monroe County and within planning units, it does not assign a specific type of wastewater treatment or EDU data to individual parcels.
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From page 141... ...
While there are no significant BMPs in effect in Monroe County, BMPs have been extensively implemented and investigated in other coastal communities in Florida, and BMP performance data has been used as the basis for evaluating potential benefits that might be achieved through retrofitting existing development and requiring effective stormwater management systems and BMP in new development and redevelopment. Many parking lots in the Florida Keys are unpaved and visual observation of runoff from these unpaved lots indicates typically high level of suspended solids.
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From page 142... ...
and additional studies of urban land uses in Gainesville, FL in 1999 (Brown, M.T.; unpublished) The work on empower density and Landscape Development Intensity index of urban land uses is ongoing (Brown et al 1998 and Brown and Tighe, 1989)
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From page 143... ...
. ecological function in upland areas may be depressed in the Florida Keys." 73, Equation on page 67, is "d" in feet or meters?
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From page 144... ...
If the difference is in the reclassification of vacant lands to habitat as 'open space," it is not made clear. If current conditions are so bad that the additional changes with Smart Growth simply can't make it much worse, then that should be said clearly.
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From page 145... ...
Must the 10 acres be within a single property parcel, or can the 10 acres be constructed by aggregating multiple property parcels? This criterion is based on current Monroe County regulations related to vegetative community connectivity.
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From page 146... ...
73) Definition taken from the Florida Keys Advance Identification of Wetlands (ADID)
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From page 147... ...
91. Explain the extent to which the "Smart Growth" scenario differs from a scenario that would represent build-out in conformance with the current future land use element of the Monroe County comprehensive plan and applicable land development regulations.
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From page 148... ...
above. In order to input the Smart Growth scenario into the model, the team had to interpret to some extent the use of the term "substandard," the criteria for consideration were primarily suggested by the local planners.
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From page 149... ...
The PC code from the current Monroe County Property Appraiser's Office was used to define current conditions land use.
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From page 150... ...
The "Smart Growth" scenario was developed by the local planners after a series of working sessions with the study team. The scenario was discussed at this workshop with the other local planners, who agreed it was one plausible vision for the future development of the Florida Keys.
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From page 151... ...
73) The commercial development element of the smart growth scenario provided specific criteria that defined the selection of the vacant commercial lands.
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From page 152... ...
Specific management techniques are discussed in some detail in the Stormwater Management Master Plan
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From page 153... ...
73~? The treatment methods referenced to as "default" in Table 4.1 of the Delivery Order-11 draft report are the treatment methods and standards recommended for implementation in Monroe County's adopted Master Plan.
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From page 154... ...
The last sentence on p. 84 concludes that "The LOS remains unchanged in the Smart Growth scenario for all planning units except Plantation Key." However, it seems to me that 21 out of 26 units show a decline in LOS between current conditions and smart growth.
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From page 155... ...
74) that "Vacant land residential is the second largest land use" in the Smart Growth scenario?
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From page 156... ...
However, the CCAM is not a conventional event simulation model that uses a fixed time-step and a series of specific simulation events to predict time variable flow, stage and pollutant flux values for specific locations. The Florida Keys has very little conventional drainage infrastructure and virtually no treatment facilities.
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From page 157... ...
Please present some additional explanation (in lieu of having the Monroe County Stormwater Master Plan) about
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From page 158... ...
The ASCE-BMP database was reviewed as part of this work to see if any Keys-specific data was available for any BMP there was no data. Consequently, the BMP efficiencies from Monroe County's adopted Stormwater Management Master Plan were utilized in the Stormwater Component.
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From page 159... ...
The Project Team is aware of several studies of pathogens and a number of beach closings related to pathogen concentrations. Unfortunately, the available data is not sufficient to document background conditions within the Florida Keys, develop a defensible GIS coverage, or support development of an algorithm for generation/decay and transport of human pathogens.
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From page 160... ...
Depth was obtained from bathymetric maps, and velocities were extracted from existing effort to measure circulation patterns in the Florida Keys.
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From page 161... ...
Does the Smart Growth scenario assume that 100% of stormwater runoff, including highways, will be retrofitted and controlled? Similarly, will 100% of existing cesspits be upgraded?
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From page 162... ...
Loadings are developed for each catchment, and then aggregated to the level of the planning unit, and thence to the entire Study Area. It is possible that there may be one or more largely undeveloped catchments that, when fully developed in a scenario with whatever structural interventions are elected by the CCAM user, may show increased water quality impacts.
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From page 163... ...
We agree that a catchment is a subset of a watershed. Having said this, each of the planning units could conceivably be defined in terms of two watersheds The Florida Bay watershed containing those catchments that discharge to Florida Bay, and the Atlantic watershed containing those catchments that discharge to the Atlantic Ocean.
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From page 164... ...
This is reflected in the definition of the Smart Growth Scenario. Any future scenario will incorporate the same amount of development in Big Pine Key.
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From page 165... ...
Smart Growth Scenario (as provided to us by the local planners) A Smart Growth initiative will be implemented in Monroe County to preserve the natural environment, redevelop blighted commercial and residential areas, remove barriers to innovative design concepts, reduce sprawl and direct future growth to appropriate infill areas.
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From page 166... ...
All County owned buildings would be landscaped and retrofitted for stormwater management. Two additional Parks of 5-10 acres each will be developed in the lower Keys; one on Big Pine Key and one on Sugarloaf.
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