Lake Holden News 2018 Oct-Nov-Dec

Lake Notes… Water Advisor Board Meeting…

By Lionel Robbins

Your WAB members are vigilant and focused on the continued monitoring of water quality in Lake Holden.  They work for you and keep you (and your MSTU money) in mind when evaluating ongoing and future projects.   They are a very special and dedicated team of volunteers who share their passion for Lake Holden.  Their obligation to you the property owners and the lake is to be as certain as possible that your MSTU money is well spent. Additionally, when weighing the possible solutions to issues, all options will be researched and leave no stone unturned when searching for those resolves.  

43rd STREET POND RETROFIT

Keeping nutrients out of the lake is much less expensive than removing them.  One of Dr. Harvey Harper’s recommendations from his most recent study was to raise the outfall level of the 43rd Street Pond.  The result would increase the pond’s capacity of stormwater and allow more time for the nutrient loaded, trash-ridden water to be filtered naturally to the aquifer.  That’s called residence time.  Don’t know what residence time means?  You are invited to attend the next WAB meeting and discover that and more.  

AQUATIC PLANT MANAGEMENT

Hydrilla continues to be an issue in Lake Holden.  Herbicide treatments are not lasting as long, the plant rebounds in a short period of time even after rotating the application process.  Now the hydrilla is in an “aggressive growth pattern”.  The numerous locations around the lake and the aggressive nature of the invasive nuisance may require a lake-wide treatment.  The application process of the whole lake treatment can be simply described by pouring Fluridone Aquatic Herbicide into the lake.  The first application would be 5-10 gallons then test for effectiveness and if necessary additional amounts of herbicide could be added until desired levels are attained.  In general, the process is simple, however, it is not permanent and is costly.  It is not permanent, but no herbicide treatment will be because it does not kill the root/tuber, so it will eventually experience regrowth.  It is costly, estimated-guess for Lake Holden would be as much as $100K.  Over the past five years, the expenditure for chemicals and pesticides for Lake Holden averages just over $17K a year. 

WAB MEETING NOTICE

For more on these topics and others, please join us at the Facilities Training Room, 2010 East Michigan Street, Orlando – Generally WAB meetings are held on the third Wednesday of each month.  The January 2019 meeting date may be changed so the WAB members can attend the LHPOA Annual Membership meeting on January 16, 2019.

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