notebook - Southwest Florida Water Management District

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notebook - Southwest Florida Water Management District

Item 24

is no scheduled status meeting for the month of November 2012. Project Manager: Robert

Peterson

Pasco County - Reclaimed Water Natural Systems Treatment and Restoration Project

A desktop feasibility study to assess using 10 mgd of highly treated reclaimed water to

indirectly recharge the UFA via constructed wetlands and/or rapid infiltration basins (RIB) in

the Crews Lake and central Pasco areas was completed in January 2011. The study

showed that indirect aquifer recharge is a viable option for Pasco County. A Phase II

feasibility study and report was completed in February 2012 and includes a screening

analysis for potential RIB locations, as well as cost analyses refinements for potential future

phases. Phase III will include field testing and modeling once a potential property has been

identified. The Phase III scope of work is now complete and the agreement is being routed.

A follow-up meeting was held March 19, 2012, to develop a plan to contact land owners

identified in the Phase II report to determine which lands are available for field testing and

potential purchase for a RIB. A meeting was held with one property owner on May 17, 2012.

Other property owners are being contacted and initial meetings with interested owners are

being scheduled. A meeting with a second property owner was held on July 19, 2012. New

Activities Since Last Meeting: The cooperative funding agreement remains in the District’s

review process, awaiting revised clauses being developed by District staff. An initial meeting

was held on September 14, 2012, with a third property owner, with a follow-up meeting to be

scheduled. To date, no property has been chosen. It is anticipated that work will begin on

Phase III in the winter 2012/2013. Project Manager: Mike Hancock

Polk County - Groundwater Recharge Investigation

This is an indirect aquifer recharge desktop feasibility study and pilot testing project to

evaluate improvements to UFA water levels from applying varying quantities of reclaimed

water flows into existing RIB systems in the County's Northeast Regional Utilities Service

Area. Sites being evaluated include the Northeast Regional Wastewater Treatment Facility

and Polo Davenport. Tasks include performing a site characterization, installing monitoring

wells, performing aquifer and RIB characterization activities, and conducting recharge

testing for one year. The County’s consultant completed the preliminary site assessment

report and detailed testing plan on December 15, 2011. It was determined that the Northeast

Regional Wastewater Treatment Facility would be the primary focus for the study; and the

plan includes specifics on the well installations, soil borings, and aquifer and RIB testing.

Water level monitoring and soil characterization will also be performed at Polo Davenport.

New Activities Since Last Meeting: District staff attended a status meeting on October 18,

2012. The consultants have completed installation of monitoring wells, collection of soil

borings, evaluation of surface geophysics, performance of soil infiltration tests, aquifer

testing, and the 30-day load test of the RIB system. A final report summarizing the testing

activities was submitted to the District on August 10, 2012. The consultant is currently

calibrating a groundwater flow model of the Polo Park and Northeast facilities. The model

will be used to predict the hydrologic response of 2 mgd of recharge over a long-term

period. Project Manager: Ron Basso

South Hillsborough County Aquifer Recharge Program (SHARP)

This is a direct aquifer recharge pilot project to evaluate directly recharging the non-potable

zone of the UFA with up to 2 mgd of highly treated reclaimed water at the County’s Big Bend

facility near Apollo Beach in southern Hillsborough County. The goal of the project is to

improve water levels within the Most Impacted Area of the SWUCA and possible slow the

rate of inland movement of saltwater intrusion in the area. The pilot testing program includes

permitting, installing a recharge well and associated monitor wells, assessing aquifer

characteristics, performing recharge testing, evaluating water level improvements, migration

of the recharge water and metals mobilization, and conducting public outreach. The

County’s consultant submitted the well construction permit application for authorization to

install the test recharge well and monitoring wells on December 20, 2011. Design and

preparation of bid documents were completed in early July 2012, a request for bids was

released the week of July 16, 2012, with responses due by the end of August 2012. New

Activities Since Last Meeting: Project staff met to discuss quantifying benefits to the

aquifer from recharge resulting from the project in order to better facilitate discussion of the

Net Benefit provision. Bid openings were pushed back and held in early October for

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