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EAC LDC Stakeholder's Meeting Agenda 11/05/2009 Environmental LDC Amendments Stakeholders Meeting Community Development and Environmental Services Division 2800 North Horseshoe Drive, Naples, Florida November 5, 2009 9:00 a.m. until 12:00 noon Room 610 Agenda 1. Roundtable discussion of draft LDC amendments a. Recreational Uses in Preserves b. Stormwater Uses in Preserves lenberger_s _ crom: lenberger_s Sent: Monday, October 05, 2009 4:46 PM To: TorreJohn; hetzel_I Cc: mason_s; lorenz_w; WrightJeff; ashton_h Subject: November 5 environmental LDC anendments stakeholders meeting John/Lavah: attached is a public notice for another environmental LDC amendments stakeholders meeting to be held by our department. Thank you! Stephen Stephen Lenberger Senior Environmental Specialist Engineering and Environmental Services Department (239) 252-2915 SteveLenberger@colliergov.net News Release 110509.doc 1 L. X111// • „0,- Collier County Government Communication & Contact: (239) 252-8848 Customer Relations Department www.colliergov.net 3301 East Tamiami Trail www.twitter.com/CollierPlO Naples, FL 34112 October 5,2009 FOR IMMEDIATE RELEASE NOTICE OF PUBLIC MEETING COLLIER COUNTY GOVERNMENT COMMUNITY DEVELOPMENT AND ENVIRONMENTAL SERVICES DIVISION ENGINEERING AND ENVIRONMENTAL SERVICES DEPARTMENT COLLIER COUNTY, FLORIDA THURSDAY, NOVEMBER 5, 2009 Notice is hereby given that the Collier County Government Community Development and Environmental — Services Division, Engineering and Environmental Services Department will hold a public meeting to discuss environmental Land Development Code amendments on Thursday,November 5 at 9 a.m. at the Community Development and Environmental Services Division building, conference room 610, located at 2800 N. Horseshoe Drive,Naples. All interested parties are invited to attend. Attention: two or more members of the Collier County Planning Commission may be present and may participate at the meeting. The subject matter of this meeting may be a future item for discussion and action at a Collier County Planning Commission meeting. Attention: two or more members of the Environmental Advisory Council may be present and may participate at the meeting. The subject matter of this meeting may be a future item for discussion and action at an Environmental Advisory Council meeting. Attention: two or more members of the Development Services Advisory Committee may be present and may participate at the meeting. The subject matter of this meeting may be a future item for discussion and action at a Development Services Advisory Committee meeting. Attention: two or more members of the Conservation Collier Land Acquisition Advisory Committee may be present and may participate at the meeting. The subject matter of this meeting may be a future item for discussion and action at a Conservation Collier Land Acquisition Advisory Committee meeting. Attention: two or more members of the Habitat Conservation Advisory Committee may be present and may participate at the meeting. The subject matter of this meeting may be a future item for discussion and action at a Habitat Conservation Advisory Committee meeting. If you are a person with a disability who needs any accommodation in order to participate in this proceeding, you are entitled, at no cost to you, to the provision of certain assistance. Please contact the Collier County Facilities Management Department, located at 3301 E. Tamiami Trail,Naples, FL 34112, (239) 252-8380, at least two days prior to the meeting. Assisted listening devices for the hearing impaired are available in the Board of County Commissioners Office. For more information, call Mike Sheffield at(239) 252-8383. -End- Environmental LDC Amendments Stakeholders Meeting November 5,2009 9:00 a.m. //0 /-> rott Thiceid v/ i77 /1e e c,p . (7G /6/5' licA A jecILK-4_ gre,5,„...i&azoiti,_ ,...2.,/avitign-t,-(4.k,16%_cle r.......A:9<671--,, ia6A1 3erenoCC00.)t e1e• iheeJ' c 5 erKa'-1--\ tovkc.ci ci,, JA- pi_6:4,..o9--.:,op,LA,,,Lizet, ,<:,,,,_ I dt Cfb cal-ne_ otyls.e.rvcA.Incl. 01 F A 4 / 1:likiAt /tCC) CATIAS011 a f I C_.3 , 0�� 19)k,ttr\ n 1 (019 v-Q QolAnfirvervi c, )�-ea„� ° S aw.Gtcte s l`'1S Lo C AT co VA” T7 , /kW /fall g 7171, rill 4tragi," 7e t. cc,,, I) oM4rnicO /g am /CO e 466,4c. corn 45-6:0> 0 7 r,zeroacv sit( 5--tena r-xrnows Lie �oifie''Jov,nef /Ati/�, cid l/'°�Z/f7.,...:5,2i-,„.„._ 1,24,-/c C? Environmental LDC Amendments Stakeholders Meeting November 5, 2009 9:00 a.m.— 12:30 p.m. Roundtable discussion of draft LDC amendments Recreational Uses in Preserves: Ground prep for pervious pathways is the same as for impervious pathways Limit percent of impervious pathways, perhaps 1% of area of preserve Incentivize pervious pathways by letting them count toward the preserve requirement Unit costs are similar, 10—20% more to install pervious concrete Include pathways in conservation easement It has not demonstrated that run-off from sidewalks is detrimental to preserves Encourage pervious materials - not a water quality issue 3-4% cap on structures in preserves if pervious pathways count towards preserve requirement Deviations a possibly Variance for percent—check with Zoning Language to avoid trees and other vegetation in preserves when constructing pathways— generally thought not to be needed. Already done by industry when constructing pathways Stormwater in Preserves: Discuss Powerpoint presentation from Davidson Engineering Proposed language is offered as a compromise Preserves are often under hydrated State standards Need preserves hydrated, not over inundated Scale and modeling Hydroperiods Reference season, typical rainy season Discussion on modeling Predevelopment modeling Deuver's table, are averages over time Many preserves do not get enough water Balance with uplands Mixed preserves Need positive outfall for preserves to prevent bathtub effect Need pre vs. post analysis Scale --- SFWMD requires 1 inch pre-treatment prior to discharge into preserves Nitrogen a concern SFWMD gives credit for retention and detention Change interim water management requirements to match SFWMD requirements New District guidelines: provide a net benefit at post development Rehydration of former wetlands: variance process base on types of vegetation present(FLUCFCS Codes) and soil types mesic uplands Deuver's table Difficult to model Use USACOE criteria to define wetlands Possibly use SFWMD criteria instead of USACOE criteria Distributed treatment system could be used Calibrate to vegetative community Pre vs. post: residential vs. commercial projects Credit for retention, not dry detention County does not recognize credits from SFWMD SFWMD letter required by County when a project is under threshold for SFWMD permit requirements. Letter needed to show project is meeting minimum SFWMD criteria (10/2), New stormwater rule on current agenda for SFWMD meeting next week in Key Largo SFWMD required to apply more restrictive local govt. rules (Ordinances) according to Robert Wiley. SFWMD not obligated to apply policies or suggestions from local govt. Staff from Davidson Engineering and the Conservancy of SW Florida will work together to provide a draft stormwater amendment.