Tampa Bay Region - Southwest Florida Water Management District
Tampa Bay Region - Southwest Florida Water Management District
Tampa Bay Region - Southwest Florida Water Management District
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Return to TOC<br />
SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT<br />
FY2014 COOPERATIVE FUNDING INITIATIVE APPLICATION FORM<br />
Project Name<br />
Implementation of BMPs within the Sunset Beach <strong>Water</strong>shed (Phase IV)<br />
Project Number N572<br />
Cooperator<br />
City of Treasure Island<br />
Department<br />
Contact Person William Reidy, P.E.<br />
Address<br />
3931 68th Avenue<br />
City Sate Zip Pinellas Park, FL 33781<br />
Phone # 727-526-9158<br />
Email<br />
keller@aed-fl.com<br />
Project Type:<br />
<strong>Water</strong> Supply X <strong>Water</strong> Quality Flood Protection Natural Systems<br />
Strategic Initiatives:<br />
X <strong>Water</strong> Quality Maintenance and Improvement <strong>Water</strong> Quality Monitoring<br />
Alternative <strong>Water</strong> Supply Conservation<br />
Reclaimed <strong>Water</strong> <strong>Region</strong>al <strong>Water</strong> Supply Planning<br />
Emergency Flood Response Floodplain <strong>Management</strong><br />
Minimum Flows and Level Establishment and Monitoring Minimum Flows and Levels Recovery<br />
Natural Systems Conservation and Restoration Natural Systems Identification and Monitoring<br />
Indicate All Counties to Benefit From Project:<br />
Charlotte Citrus Desoto Hardee Hernando Highlands Hillsborough Lake<br />
Levy Manatee Marion Pasco X Pinellas Sarasota Sumter Polk<br />
Project Description:<br />
The City of Treasure Island is a coastal municipality located in southwest Pinellas County. Approximately 58,000 LF (11 miles) of<br />
storm sewer piping is maintained by the City of Treasure Island's Public Works Department. Due to the fact that the City is an island<br />
community, approx. 161 stormwater outfalls discharge to Boca Ciega <strong>Bay</strong>. These stormwater outfalls often convey floatables,<br />
sediments, oils and greases to receiving State <strong>Water</strong>s. The lack of available lands for stormwater detention/retention facilities<br />
results in the inability to remove the aforementioned pollutants through "conventional" pond systems.<br />
The City has identified the Sunset Beach basin as a watershed in which water quality and conveyance improvements are<br />
necessary. The City is commencing construction on water quality and conveyance improvements for the southern portion of this<br />
basin which received funding in prior CFI cycles.<br />
<strong>Water</strong> quality and conveyance improvements are currently being addressed within the northern portion of the Sunset Beach basin<br />
through the construction of a large diameter central stormwater collector. Multiple outfalls exist in the northern section of the Sunset<br />
Beach basin which made it not feasible to incorporate treatment technology on all of these outfalls due to the maintenance burden<br />
that would accompany multiple treatment devices. Further, the lack of easements over the outfalls will not allow for the upsizing<br />
required to improve the system's conveyance capabilities. For this reason, the City proposed a system which would collect the<br />
basin's waters and discharge the flows out of a single outfall. A Nutrient Separating Baffle Box (NSBB) will be placed on the outfall<br />
allowing for water quality improvement prior to being discharged to <strong>Water</strong>s of the State.<br />
Due to funding limitations, the entire system improvements for the northern portion of the basin could not be constructed within one<br />
funding cycle. The City received funding from the FY2013 CFI cycle to design and construct the initial phase of the improvement<br />
which includes the outfall, water quality improvement structure and limited upstream piping. The design of these improvements will<br />
soon be initiated.<br />
The City is requesting funds in the FY2014 CFI cycle to continue the implementation of the water quality and conveyance<br />
improvement plan that was presented to and approved by the <strong>District</strong> in the prior funding cycle. Stormwater collection structures<br />
and piping would be constructed upstream of the newly installed water quality improvement structure. Therefore, flows which would<br />
once be discharged through separate outfalls to <strong>Water</strong>s of the State will now be routed through this unit for treatment.<br />
The City is aware that implementation of BMPs is vital to improving water quality within the Inter-Coastal waterway. For this reason,<br />
the City felt it would be prudent to develop upstream segments of their collection system to force stormwater to be routed through<br />
the NSBB prior to discharge. The NSBB is effective in removing large floatables and small sediment from the flow stream. Greases<br />
and oils can also be removed through the incorporation of an absorbent boom and a skimmer. This technology is capable of<br />
removing up to 80% of all TSS from receiving stormwater. This TSS removal rate is in compliance with management measures<br />
133