Loading...
Water Management Minutes 02/01/2021PELICAN BAY SERVICES DIVISION WATER MANAGEMENT COMMITTEE MEETING FEBRUARY 1, 2021 The Water Management Committee of the Pelican Bay Services Division met on Monday, February 1 at 9:00 a.m. at the Community Center at Pelican Bay, 8960 Hammock Oak Drive, Naples, FL 34108. The following members attended. Water Management Committee Denise McLaughlin, Chair Tom Cravens (absent) Pelican Bay Services Division Staff Neil Dorrill, Administrator ,had Coleman, Operations Manager Dar en Duprey, Associate Project Manager Also Present Tom Barber, Agnoli, Barber & Brundage Jim Carr, Agnoli, Barber & Brundage Susan O'Brien Scott Streckenbein Michael Weir Karin Herrmann, Operations Analyst Lisa Jacob, Project Manager Barbara Shea, Administrative Assistant Nick Fabregas, PBSD Board Michael Fogg, PBSD Board APPROVED AGENDA (AS PRESENTED) 1. Pledge of Allegiance 2. Roll call 3. Agenda approval 4. Approval of 01/23/20 meeting minutes 5. Audience comments 6. Current state and expected timing for Oakmont Lake 4-1 remediation project a. Detailed plan able to be used for bidding b. PBSD Board decision to proceed with Lake 4-1 c. Expected procurement elapsed time d. Estimated timeline for construction e. Methods of remediation, including mixed use of Rip Rap and Geotube 7. Criteria used to prioritize lake bank restoration 8. Incremental criteria including visibility, current functional or aesthetic problems 9. Staff progress report 10. Adjournment ROLL CALL Mr. Cravens was absent and a quorum was established Pelican Bay Services Division Water Management Committee Meeting February 1,2021 Mr. Streckenbein motioned, Mr. Weir seconded to approve the agenda as presented. The motion carried unanimouslv. Mr. Weir motioned, Mr. Streckenbein seconded to approve the 1/23/20 meetine minutes as Dresented. The motion carried unanimously. AUDIENCE COMMENTS Mr. Fabregas requested that PBSD staff research the possibility of obtaining easements for lakes 1 and 2 in Basin 1 (located within the Waterside Shops parcel), which would make the PBSD responsible for servicing these lakes, which are interconnected with the Pelican Bay master drainage system. He would like the PBSD to ultimately obtain BCC approval to add these easements to the list of PBSD responsibilities. Mr. Dorrill commented that historically the PBSD has had no easements for these two lakes. He noted that he has recently had a discussion with the Waterside Shops management on this subject. Ms. O'Brien commented that there are 13 additional private lakes, connected to the the PB master drainage system, for which the PBSD has no easements. She suggested that the full board should have a discussion on whether to explore this issue and determine how much staff time should be devoted to this. Mr. Streckenbein commented that this would be a precedent setting discussion, and that a lot more information would be needed to make any decisions. Mr. Dorrill commented that staff will review our SFWMD permit and determine how many of the private PB lakes are interconnected with the PB master drainage system. This information will be provided at the next committee meeting for discussion. STATUS OF OAKMONT LAKE 4-1 REMEDIATION PROJECT Our ABB engineer, Mr. Jim Carr, reported that the survey for Oakmont Lake 4-1 has been completed. He provided the committee with segments of the survey on the display screen for discussion. Ms. Melanie Miller, Vice President, Finance Admin. at the Pelican Bay Foundation, confirmed that the PBF is responsible for replacing the pathway along this lake as well as dating/replacing landscaping along the lake. This PBF work will be coordinated with PBSD staff, as part of the Lake 4-1 lake bank remediation project. Ms. O'Brien suggested that we discuss our lake bank remediation plans with the homeowners who live on the west side of Lake 4-1. Ms. McLaughlin suggested that we meet with these homeowners after we have a more detailed plan. Mr. Weir commented that the PBSD needs to make a decision on the appropriate remediation method based on cost and longevity; this is not the homeowners' decision. Ms. McLaughlin added that aesthetics should also be a consideration. Mr. Carr commented that rip rap is a good solution for the remediation of the west side of the lake, which would be 40% of the perimeter (the recommended maximum). He provided two cost estimates for two suggested remediation options (provided in the agenda )acket) including: (1) Option l: A combination of GeoWeb and rip rap estimated at $2.0 Pelican Bay Services Division Water Management Committee Meeting February 1, 2021 million, and (2) Option 2: A combination of rip rap and re -grading estimated at $1.4 million. Mr. Carr noted that he will be updating these estimates in the next few weeks, based on the completed survey. Mr. Carr commented that he will be testing the lake bottom material in the next few weeks to determine whether it can be used for fill. Ms. McLaughlin expressed concerns over whether copper would be stirred up and go into solution if the lake bottom material were to be used for fill. Mr. Carr commented that upon completion of the project, the 4 to 1 slope of the lake banks will be restored. Mr. Dorrill commented that the goal of the project is to restore the slope and holding capacity back to its original design. He also noted that the plan will provide for the connection of two drain features per household. Ms. O'Brien commented on the timeline, included in the agenda packet, which shows November 2021 as the start of the construction of the project. She suggested that this project start after the 2021/2022 winter season. Mr. Carr discouraged completing the project in the wet season. Mr. Dorrill commented that GeoWeb and rip rap projects require SFWMD permits, while re -grading projects do not. Ms. O'Brien suggested that we consider a re -grading project in order to save time and money. After committee discussion, it was agreed that ABB would bring back updated cost estimates of Options 1 and 2, as well as an Option 3, which would consist of re -grading the entire perimeter. Mr. Carr suggested that the committee consider the longevity of Option 3. Mr. Dorrill suggested that Option 3 may also result in maintenance issues. Mr. Dorrill commented that he would like to bring the planning phase of this project to a conclusion. He suggested that the committee schedules a March meeting to review the three cost options, and then bring a recommendation to the full board. Mr. Weir commented that the decision on a remediation method will set the standard for future lake bank projects. CRITERIA USED TO PRIORITIZE LAKE BANK RESTORATION Our ABB engineer, Mr. Tom Barber, provided an explanation and theory behind his revised prioritization formula to be used to compile "1" 116 list of PB lakes for lake bank restoration projects. He compared and contrasted this formula with his original formula. The revised formula includes escarpment consideration, not slope. It also gives more consideration to community exposure issues. Mr. Barber suggested that "risk of an accident" should also be a strong consideration when ranking the lakes. Ms. O'Brien commented that per our SFWMD permit, we are responsible for maintaining the slope of the lake banks; other factors included in the revised formula are not part of our responsibility. Mr. Fogg commented that lake visibility should be a consideration. Ms. Miller confirmed that the PBF recently had an engineer prepare a report on the condition of the Community Center lake bank; she will provide a copy of the report to the committee. The committee had a discussion on the pros and cons of each of the two formulas. Ms. O'Brien commented that the initial formula and ranking is more relatable to our permit (quantitative), while the revised formula and ranking is more qualitative. 3 Pelican Bay Services Division Water Management Committee Meeting February 1, 2021 Mr. Coleman commented that he would not be in favor of working off of both ranking lists, which would only lead to confusion. He noted that the formulas were developed to "take out opinions" when choosing the order of lake bank restoration projects. Mr. Dorrill preferred that we stay with the revised formula and ranking list. In conclusion, Mr. Fogg directed the committee to review the top five lakes on each of the ranking lists, plus any additional staff recommendations at their next committee meeting. Mr. Weir suggested that from this pool, the committee should select five or six lakes for the next lake bank restoration projects over the next five years. The meeting was adjourned at 10:47 a.m. 4.Ld12/ / s'� ' ���- Denise McLaughlin, Ch it r Minutes approved as presented OR as amended ON J a aU t J date