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HomeMy WebLinkAboutDocumentation_Stormwater_Tab 4A_5/21/1998 . .4 : • �r a tf 7 VILLAGE OF TEQUESTA • , z .: Post Office Box 3273 • 357 Tequesta Drive � �o Tequesta, Florida 33469-0273 • (561) 575-6200 '+lY �` Fax:(561)575-6203 fQ 4 & CO • VILLAGE OF TEQUESTA STORMWATER UTILITY BOARD MEETING MINUTES APRIL 30, 1998 I. CALL TO ORDER AND ROLL CALL The Tequesta Village Council held a meeting sitting as the Stormwater Utility Board at the Village Hall, ' 357 Tequesta Drive, Tequesta, Florida, on Thursday, April 30, 1998. The meeting was called to order at 7: 00 P.M. by Mayor Elizabeth . A. Schauer. A roll call was taken by Betty Laur, Recording Secretary. Councilmembers present were: Mayor Elizabeth A. Schauer, Vice Mayor Carl C. Hansen, Alexander_ W. Cameron, and Joseph N. Capretta. Also in attendance were: Village Clerk Joann Manganiello, Village Manager Thomas G. Bradford, and Department Heads. Councilmember Ron T. Mackail was absent from the meeting. II. APPROVAL OF AGENDA Village Manager Bradford requested addition under ANY OTHER MATTERS of items for the next meeting and information regarding Riverside Drive. Vice Mayor Hansen made a motion to approve the Agenda as amended. Councilmember Cameron seconded the motion. The vote on the motion was: Elizabeth A. Schauer - for Carl C. Hansen - for • Recycled Paper 1 Stormwater Utility Board Meeting Minutes April 30, 1998 Page 2 Alexander W. Cameron - for Joseph N. Capretta - for The motion was therefore passed and adopted and the Agenda was approved as amended. III. COMMUNICATIONS FROM CITIZENS (NON-AGENDA ITEMS) There were no communications from citizens. IV. APPROVAL OF MINUTES & REPORTS A) Stormwater Utility Board; May 27, 1997 Councilmember Cameron made a motion to approve the minutes for the Stormwater Utility Board meeting of May 27, 1998 as submitted. Vice Mayor Hansen seconded the motion. The vote on the motion was: • Elizabeth A. Schauer - for Carl C. Hansen - for Alexander W. Cameron - for Joseph N. Capretta - for The motion was therefore passed and adopted. V. REVIEW OF INTERIM VILLAGE SWALE POLICY ADOPTED BY ADMINISTRATIVE POLICY NO. 3-97/98 Village Manager Bradford explained that this Board met a minimum of twice each year during April and May, to establish the ERU and budgets for the coming fiscal year, and met otherwise as needed. Village Manager Bradford explained that Cherie Soya, P.E. , had conducted a study of drainage basins within the Tequesta Country Club community, and after her presentation later in this meeting, staff would be in a better position to set the ERU for the upcoming fiscal year. At the next meeting, a copy of the • Stormwater Utility Board Meeting Minutes April 30, 1998 Page 3 NPDES annual report would be provided as well as an operating budget for the next fiscal year and a proposed capital budget, and the ERU assessment necessary to provide revenues to meet expenditures of that budget. Village Manager Bradford explained that at last year' s Stormwater Utility meetings in April and May, the Board had requested that staff find a consistent means of applying Village policy in regard to swales and permitting for same. The Village Manager explained that this policy was called an interim policy because the intent was to incorporate the policy into the Village' s right-of-way ordinance; however, it was an administrative policy, defendable and enforceable. Village Manager Bradford commented the Village did not have sufficient funds to provide swales throughout the whole community at one time; therefore, it was necessary to establish priority areas such as those not constructed with swales or those where standing water after a rain caused traffic hazards. As people came for permits . to rebuild their driveways, these properties could be required to construct swales, reducing the number of those to be done by the Village. Village. Manager Bradford explained that the purpose of the ordinance was to set forth requirements of both Mr. Ladd' s and Ms. Oslund' s departments and to tell residents why they may be required to slope their property when they rebuilt their driveways. The policy would mandate that the Village Swale Policy Bulletin be a part of the permit application, and the permit would contain a graphic to explain to applicants how a slope was to be built. Vice Mayor Hansen commented that driving to this meeting he had observed a lot less standing water from the 5 p.m. rain than before approximately 1/3 of the street had established swale areas; and had observed that where there were no slopes the grass formed a curb not allowing water into the swales. Vice Mayor Hansen reported he had visited a development in Palm Beach Gardens which had been built approximately ten years ago and a swale placed in front of every house, and it worked well. Vice Mayor Hansen reported he had attended an EPA meeting that afternoon where swales the lack of education regarding swales had been discussed. The speaker at the meeting had advised that people should not be upset that water stood for some w Stormwater Utility Board Meeting Minutes April 30, 1990 Page 4 time in a swale. Councilmember Cameron reported he used to live in an area in Houston where every road had a swale, and he knew that swale drainage worked. Councilmember Capretta discussed the problem of educating residents regarding the need for swales, and reported people were afraid of major changes and were afraid they would have to install swales. Mr. Oslund explained that any area in the Village that had a swale-type section would need to add swales, and the whole Village would be prioritized with the areas most in need to be swaled first. It was stated that the swale policy would affect everybody, no matter what type of driveway they had. Councilmember Capretta commented that two new houses built side by side had put in sidewalks as they were supposed to do, however, the houses on either side had none, and the problem had never been addressed. The sidewalks provided the perfect area between the sidewalk and the road for a swale. Village Manager Bradford commented that the problem would have to be addressed because if the landscaping on Country Club Drive was approved by the Village Council, swales would have to be cut before the plantings could be installed. Possibly addressing homeowner associations was mentioned as a way to educate the public. For those residents without an association, periodic writeups regarding swales were planned to be published in the Village newsletter. Councilmember Cameron suggested that when people installed driveways they should be asked to swale the entire front of their property, to which Mr. Oslund responded that could be expensive, but there were temporary solutions. Vice Mayor Hansen commented that the educational program should state that this was not the Village' s idea, but that it was taking place everywhere. It was pointed out that swale maintenance was required, and that they would need to be , re-cut in a few years as they became filled with silt. Mr. Oslund stated that in order to get permitting from SFWMD, as much retention as possible must be on site. Vice Mayor Hansen made a motion to acknowledge Administrative Policy No. 3-97/98. Councilmember Cameron seconded the motion. The vote on the motion was: Elizabeth A. Schauer - for Carl C. Hansen - for • Stormwater Utility Board Meeting Minutes April 30, 1998 Page 5 Alexander W. Cameron - for Joseph N. Capretta - for The motion was therefore passed and adopted. VI. REVIEW OF VILLAGE OF TEQUESTA COUNTRY CLUB COMMUNITY DRAINAGE STUDY AND RECOMMENDED IMPROVEMENTS. CHERIE SOYA, P.E. Councilmember Capretta expressed concern that Tequesta Country Club Homeowners Association was probably not aware that this study had been done since the Country Club would • be impacted if the study was implemented. Mayor Schauer suggested they be sent a copy of the report. Ms . Soya explained there were two drainage systems within the community, showed charts of each system, and reviewed each one4 Ms. Sova described the systems as overland drainage pipes emptying into the golf course ponds, which were used for water storage, and explained that these ponds were very small in comparison to the area they served. Control structures controlled the water flow into the Loxahatchee River. Because of the Loxahatchee River' s designation as an outstanding Florida waterway, water quality enhancement was very important for any discharge into the river was very important. Ms. Sova described existing drainage problems, and stated that in system two the houses were built at an elevation lower than the roadway. Existing drainage provided only a 3-year 24-hour level of flood protection. Ms. Sova recommended a minimum standard of a 5-year 24-hour level of protection because the area was built out, and explained that meant roads would flood on an average of once every 5 years. Discussion ensued regarding efforts a couple of years earlier to enlarge one of the golf course ponds and how people did not understand the need. Councilmember Capretta pointed out that Ms. Soya' s presentation could have been useful at that time. It was pointed out that Tequesta Country Club had the best drainage of any golf course around. Improvements recommended by Ms. Soya were: Increasing size of storm sewer pipe to get additional discharge to the river and increase storage by increasing Stormwater utility Board Meeting Minutes April 30, 1998 Page 6 the size of the golf course storage ponds. Roadside swales in combination with pipe size increased to 42" was recommended. By using swales, water quality would be improved and the volume to the river would be decreased, but would be a quicker process with water standing for less time. Councilmember Cameron commented the difference in area of a 30" to a 42" pipe was almost twice, which effectively doubled the area to carry water. Mr. Oslund commented 90% of pollutants are carried in the first one inch of rain, and by diverting that into a swale one would eliminate 90% of pollutants discharging from ,the system. Ms. Soya recommended opening the control structures to increase flow to the river. Provisions for emergency operations were discussed. Ms. Soya commented that the community would be allowed to control their control structures to lower the water before a storm so that additional storage would be available. Dredging the golf course ponds was recommended to remove silted material in the pipes. Ms. Soya commented that dredging would be a plus to remove pollutants in the silt' which would be a plus when requesting permitting. Recommendation for 20' drainage easements over the 10' easements existing was discussed. Village Manager Bradford pointed out that in a normal circumstance setbacks allowed only 20' between the homes in Tequesta Country Club. Mr. Suva stated she was very impressed with the Village' s swale program which would enhance water quality. An option for drainage system two was to add additional pipe from existing drainage at Country Club Drive south to Tequesta Drive and continue east, connect to an existing ditch, and discharge to the River. The ditch was recommended to be replaced with pipe. Ms. Soya explained that the first proposed improvement was construction of the roadside swales, and she believed none of the other improvements would be permitted without the swales. Swale maintenance would be very important. Ms. Sova commented that the water control structures on the golf course were not configured according to their permitting, since the sliding plate had been turned upside down, which caused water in the ponds to be maintained as much as a foot higher than it should be, so that a foot of storage was lost. Discussion ensued. Village Manager •J Stormwater Utility Board Meting Minutes April 30, 1998 • Page 7 Bradford pointed out that it was not Tequesta' s staff who reversed the plates, and the importance of stressing to the golf course maintenance personnel that they must not touch the control structures. Councilmember Capretta pointed out that the plates should be reversed immediately to lower the water level in the ponds in May, June, July which was flood season. Ms. Sova recommended placing a gauge in each pond to measure the level . Village Manager Bradford reported that within 48 hours of landfall of a predicted storm the Village lowered the ponds, and also provided periodic maintenance to clean the pipes. Mr. Preston and Mr. Oslund were directed to go to the ponds and reverse the plates and stress to the golf course personnel not to touch them, and to give a copy of the report to the President of the Country Club and to the President of the Homeowners Association, with specific areas of concern highlighted. Ms . Sova recommended modification of the control structures, operation of the control structures to allow greater discharges in anticipation of major storm events. SFWMD was requiring a permit for this, which the Village could negotiate. Ms. Sova described recommended sizes for swales. Cost estimate for drainage system one was $175, 500 which included everything except construction of swales, and included 25% for contingencies. Cost estimate for drainage system two was $223, 000 for option one, improving the existing drainage system, and $351, 344 for option two, flow diversion. Option one was recommended for system two because of the lower cost. Ms. Sova recommended implementing the proposed improvements along with good maintenance and operation, to adopt a minimum of a 5-year 24-hour level of flood protection for the roadways, to select option one within drainage system two, and to set priorities to consider construction of the roadside swales as a top priority, which would facilitate permitting for all the other proposed improvements. Ms. Sova recommended that after construction of the swales, priority should be given to drainage system two over system one because the severity of flooding was greater in system two. Mr. Oslund explained that $140, 000 had been budgeted over the next, two years which could be applied to drainage system two improvements. Mr. Oslund explained that money Stormwater Utility Board Meeting Minutes April 30, 1998 Page 8 was available from FEMA on an individual project basis, and the Village would have to be very committed to the project, and provide supporting data to convince FEMA it was a viable project, and funding would take approximately two years. Ms. Sova reported that SFWMD had had a program whereby a report such as the report she had prepared was submitted and if they deemed it one very sensitive to water quality issues they would set up a cost sharing program with the Village. Ms. Sova pointed out that not all the improvements had to be done at once, and this could also be used as a master plan. The pipes most needing attention at this time were those downstream of the control structures, along with improvement of the control structures. Councilmember Capretta suggested contacting the Tequesta Country Club and Homeowners Association to set up a meeting for this presentation to be given to them instead of mailing the report. Level of service recommended was 5-year 24-hour for roadways Village-wide. Mr. Oslund stated, he would discuss level of service with Ms. Soya. Mr. Ladd commented the Comprehensive Plan would require an amendment to change the level of service standards. Ms. Soya recommended in order to do the work incrementally that the roadside swale program be continued, then apply for a conceptual permit with SFWMD so that all improvements would be approved, and when ready to do construction, start downstream construction first, then move upstream. SFWMD would want to see construction of some swales when improvements were started. Cost of swales and their operation was discussed. Ms. Sova pointed out that the driveways could have pipes under them or be left alone. Education of the public regarding swales was discussed. Ms. Sova commented she could be available to give this presentation to the Tequesta Country Club Homeowners Association. Joe Hall, 159 Country 'Club Drive, questioned what would be done about driveways when swales were installed, to which Village Manager Bradford responded that the interim policy meant that for driveway changeouts before the Village did a full-scale swale program people would be told to cut the .l • Stormwater Utility Board Meeting Minutes April 30, 1998 Page 9 driveway to match the future swale, and putting in the swale would be completely voluntary at that time. Village Manager Bradford explained that a decision had to be made whether homeowners would be required to share costs in the swale program. Mr. Hall discussed the level of the golf course ponds and the seriousness of controlling the level, and explained that his home had flooded during the October 1995 flood. Mr. Hall stated he understood the Tequesta Stormwater staff were supposed to control the levels, which was not what was being done, and when Hurricane Erin was predicted no one had lowered the water level. Mr. Hall stated swales must be addressed because of the Country Club Drive landscaping. Mr. Hall described the flow of water when his home was flooded. Mr. Hall stated nothing in the presentation had addressed the Country Club Drive problem or the lake behind his house so flooding of his home could be avoided. Village Manager Bradford explained that this study did not cover those areas, and when the level of service analysis was done if that area was not up to the level of service then corrections would be made. Mr. Hall discussed drainage from the pond and suggested pipes to be opened in an emergency. Problems associated with this idea' were discussed. Ms. Sova recommended getting a permit from SFWMD for installing emergency systems, and explained that since the October 1995 storm was over a 100-year storm, help could be obtained from FNMA. Village Manager Bradford stated this problem would be looked at as part, of the level of service analysis. Mr. Hall recommended this presentation be given to all the Tequesta Country Club residents instead of just the Board. Mr. Hall stated the people were concerned over what was not being done, and requested the information placed in the Village newsletter also be placed in the Country Club Association' s newsletter. Peggy Verhoeven, Point Drive, questioned whether the Point Drive area was swaled, to which Mr. Oslund responded there were no swales and the driveways were flat. Ms. Verhoeven commented they had no problems with standing water on the road. Mr. Oslund explained that swales would treat the water quality. Ms. Verhoeven pointed out that at the church was the real problem where their parking lot flooded. Ms. Oslund commented that a priority list would be compiled and that more serious areas would be done p t Stormwater Utility Board Meeting Minutes April 30, 1998 Page 10 first. It was the consensus of the Board that at the next meeting of this Board on May 28, staff should present a prioritized plan with proposals of how to obtain funding and find out if SFWMD still had the 50/50 cost sharing plan, an incremental approach to option one for drainage system two, adding that to the 5-year capital improvement program. Mr. Oslund commented that if ENCON should install sewers that while they had roadways torn up the cost to do swales would be much less. Village Manager Bradford commented that a plan of action needed to be developed before beginning public education. Mr. Oslund reminded the Board that at the May 28 meeting ad valorem assessments must be decided because they were due at the County with Village Council approval by July 15. Village Manager Bradford commented that the Board at their prior meetings had wanted two 10% increases in a row in ERU assessments, so another 10% increase was in order unless the plan was changed. VI. ANY OTHER MATTERS Village Manager Bradford discussed the piping improvements made by Jupiter on Riverside Drive and stated they were just about finished, and would then pave their, section of the road, which extended from the railroad tracks to the Dover Ditph. Questions from residents were anticipated since Tequesta' s portion would not be paved at the same time. Village Manager Bradford advised that Tequesta would pave their section later and that was included in the Village' s 5-year plan for drainage improvements. It was pointed out that Jupiter was installing asphalt sidewalks in their section, but that Tequesta would be installing concrete sidewalks in 2-3 years when their drainage improvements were done. VIII. ADJOURNMENT Vice Mayor Hansen moved that the meeting be adjourned. Councilmember Capretta seconded the motion. The vote on the motion was: