Please use this identifier to cite or link to this item:
Title: Central Everglades Planning Project, Integrated Project Implementation Report and EIS : Annex F, Phosphorus Assessment for WCA-3 and ENP
Authors: United States. Army. Corps of Engineers. Jacksonville District
Keywords: Everglades (Fla.)
Environmental planning--Protection
Publisher: United States. Army. Corps of Engineers. Jacksonville District.
Abstract: This report presents a qualitative analysis of water quality impacts to the WCA-3 and ENP as a result of implementing the Central Everglades Planning Project (CEPP). This assessment focuses on ALT4R; however, ALT4R2 is the Tentatively Selected Plan (TSP). Given the similarities between these two alternatives the impact to water quality are expected to be very similar. Also, since this is a qualitative analysis, the findings presented here are generally applicable to the other with-project alternatives such as ALT1, ALT2, and ALT3. The CEPP will substantially alter the timing, quality, quantity, and distribution of water flows to Water Conservation Areas (WCAs) 3A and 3B and Everglades National Park (ENP or Park). ALT4R and ALT4R2 (Figure F-1) includes major features that improve flows through the WCA 3A and 3B such as an additional Flow-Equalization Basin (A-2 FEB) in the Everglades Agricultural Area (EAA), a partially backfilled Miami Canal in northern WCA-3A, degrade of the L-4 levee to distribute water in northwestern WCA-3A, and construction of structures to improve water deliveries into WCA-3A and WCA-3B including the construction of the Blue Shanty Flow-way in western WCA-3B. Additional ALT4R features improve inflow at the northern boundary of ENP. Such features include a partial degrade of the L-29 levee allowing the Blue Shanty Flow-way to discharge into the Park, increasing S-333 and S-356 flow capacities, seepage management features, L-67 Extension Canal Backfill, and Old Tamiami Trail removal. As required by the Everglades Forever Act (EFA), the State of Florida developed and implemented a total phosphorus (TP) water quality criterion [Rule 62-302.540, Florida Administrative Code (F.A.C.)] for the Everglades Protection Area (EPA). The EPA includes the Arthur R. Marshall Loxahatchee National Wildlife Refuge (Refuge, also known as WCA-1), WCA2, WCA-3, and ENP. The criterion, as it is applied to the WCAs, is expressed as a long-term geometric mean of 10 micrograms per liter (μg/L), or parts per billion (ppb) TP. Compliance with the criterion for ENP is determined via the methods set forth in Appendix A of the 1991 Settlement Agreement (Case No. 88-1886-Civ-Moreno). As the with-project alternatives (ALT1, ALT2, ALT3, ALT4, ALT4R, and ALT4R2 are expected to have beneficial impacts on water quality in WCA-3A, but minimal impact on water quality within WCA-1 and WCA-2, these portions of the EPA are not discussed in this paper. Additionally, no analysis of water quality impacts to Taylor Slough inflows to ENP is presented as the with-project alternatives are expected to have minimal impacts to flow and water quality conditions within the C-111 basin.
Description: Project Implementation Report/Environmental Impact Statement
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

Files in This Item:
File Description SizeFormat 
CEPP Final PIR-EIS_Annex F - Water Quality Phosphorus Assessment in WCA-3 and ENP.pdf14 MBAdobe PDFThumbnail