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Decomp Physical Model (DPM)

Picayune Strand Pump StationThe Decomp Physical Model (DPM) is a field-scale test that is being conducted along a 3,000-foot stretch of the L-67A and L-67C levees and canals in WCA- 3A and 3B to determine how best to design and formulate plans for future decompartmentalization of WCA-3, as visualized in the Comprehensive Everglades Restoration Plan (CERP). The DPM is designed to address scientific, hydrologic and water management uncertainties that require clarification prior to future planning and construction of Everglades restoration projects, authorized in the Water Resources Development Act of 2000.

Installation of the DPM was completed in October 2013. Three operational testing periods have been conducted within the November through January timeframe in 2013, 2014 and 2015. The fourth operational testing period is currently under way, with additional testing tentatively planned through 2019.

Access through the L-67A canal will remain open during and after installation. Access through the northern portion of L-67C will be blocked until the model is decommissioned.

 

What's New

PROJECT DELIVERY TEAM (PDT) MEETING FOR DECOMP PHYSICAL MODEL - August 2, 2017 

Project Delivery Team meetings enable federal, state and local agencies and tribal governments to provide their input into the Decomp Physical Model. Members of the public may attend the PDT meeting and provide public comment both during and at the end of the meeting.


AUGUST 2, 2017 - Project Delivery Team Meeting
1:30 PM - 3:30 PM (ET)
Storch Room, South Florida Water Management District (SFWMD) Headquarters, Building B-1, 3301 Gun Club Road in West Palm Beach

The meeting will also be available via teleconference and Web meeting, and can be accessed at:

Call-in number:
USA Toll-Free: (888) 273-3658
Access Code: 8760581
Security Code: 1234

Web Meeting Address:
https://www.webmeeting.att.com
Meeting Number: 8882733658
Access Code: 8760581

* The first time you use the Web Meeting Service, you will need to download the client software. Web Meeting HELP & Software Downloads can be found at: https://www.webmeeting.att.com *

During the meeting, the project team will provide information concerning the Draft Operational Strategy for the proposed potential year round operations of the Decomp Physical Model field test from 2017‑2021.  The Draft Operational Strategy is included in the  Supplemental Environmental Assessment (EA) and Proposed Finding of No Significant Impact (FONSI) for the Decomp Physical Model (DPM), which is currently available for public and agency review through August 27, 2017. It is located in Appendix A and also provided at the below link.


SUPPLEMENTAL ENVIRONMENTAL ASSESSMENT & PROPOSED FINDING OF NO SIGNIFICANT IMPACT AVAILABLE FOR PUBLIC & AGENCY REVIEW- June 28, 2017

The Supplemental Environmental Assessment (EA) and Proposed Finding of No Significant Impact (FONSI) for the Decomp Physical Model (DPM) is now available for public and agency review.  Comments will be accepted through August 27, 2017

Installation of the DPM was completed in October 2013.  Four operational testing periods have been conducted within the October through January timeframe in 2013, 2014, 2015, and 2016.  The Corps is proposing operations in 2017 year-round, with the potential for additional years of testing through 2021 to gain information to further address scientific, hydrologic and water management uncertainties that require clarification prior to the design of decompartmentalization features within Water Conservation Area-3, included in the Comprehensive Everglades Restoration Plan (CERP).  Water flow, stage, sediment movement, water quality, and ecological parameters will be measured during each operational test cycle.

 

Comments will be accepted through August, 27, 2017, and can be sent electronically to Melissa.a.nasuti@usace.army.mil, or mailed to:

Melissa Nasuti
U.S. Army Corps of Engineers Jacksonville District
P.O. Box 4970
Jacksonville, FL 32232-0019

The Supplemental EA and Proposed FONSI supplements the Installation, Testing and Monitoring of a Physical Model for the Water Conservation Area (WCA) 3 Decompartmentalization (Decomp) and Sheet Flow Enhancement Project Final Environmental Assessment (EA) and Design Test Documentation Report (DTDR) previously completed and signed April 13, 2010 and Supplemental FONSI completed and signed July 8, 2015.    

A Project Delivery Team (PDT) meeting is scheduled for August 2 in West Palm Beach to provide information concerning the Draft Operational Strategy for the proposed DPM potential year round operations from 2017-2021.  Additional details will be provided shortly.

 


SUPPLEMENTAL ENVIRONMENTAL ASSESSMENT & PROPOSED FINDING OF NO SIGNIFICANT IMPACT - May 20, 2015

Comments were accepted on the Supplemental Environmental Assessment and Proposed Finding of No Significant Impact (FONSI) through June 18, 2015.

The Draft Supplemental FONSI supplements the Installation, Testing and Monitoring of a Physical Model for the Water Conservation Area (WCA) 3 Decompartmentalization (Decomp) and Sheet Flow Enhancement Project Final Environmental Assessment (EA) and Design Test Documentation Report (DTDR) previously completed and signed April 13, 2010.