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Agenda Item 8AAGENDA ITEM # 8A JANUARY 28, 2013 CITY COMMISSION MEETING STAFF REPORT AGENDA ITEM: Evaluation of Options for Irrigation for Selva Marina Country Club Golf Course SUBMITTED BY: Jim Han , DATE: January 22, 2013 STRATEGIC PLAN LINK: Golf Course BACKGROUND: Financial difficulties and possible sale of the Selva Marina Golf Course was brought to the City Commission's attention several months ago. The Commission expressed concerns about possible future uses of the property which may have included dense residential or commercial development that could have overwhelmed the capacity of adjacent streets, devalued adjacent properties and created other problems. The Commission authorized staff to get proposals from qualified consultants to evaluate possible public ownership and operation of the golf course. More recently, representatives from the Country Club indicated that their loan had been refinanced to provide more time to plan for the long term continued operation of the golf course as a private country club. However, they asked for the assistance from the City of Atlantic Beach to find long term solutions for the irrigation problems resulting from the use of brackish water from the Selva Marina lagoon system. The City subsequently authorized J. Collins Engineering Associates to look into the possible alternatives for irrigation on the golf course. These included both the possibility of using wells and the additional treatment required to provide wastewater effluent for reuse at the golf course. The study for this project is now completed and will be presented by Utility Director Donna Kaluzniak at the City Commission meeting on January 281n BUDGET: Capital costs for the construction of reuse facilities range from approximately $450,000 to $744,000 and 20 year operational costs for each option are also estimated in the attached report (See page 14). If the City decides to move ahead with the project for reuse, appropriate rate(s) should be adopted for reuse cost to recover a portion of the expense of treating the reuse water to meet all appropriate state and federal standards. RECOMMENDATION: This report is being made to the City Commission to provide status of this project. No decisions are requested at this point. ATTACIIMENTS: 1) Evaluation of Options for Long Term Irrigation Water Supply for Selva Marina Country Club AG1. -'NDA ITEM ## 8A JANUARY 28, 2013 EVALUATION OF OPTIONS FOR LONGTERM IRRIGATION WATER SUPPLY FOR SELVA MARINA COUNTRY CLUB Prepared Far: City of Atlantic Beach, FL Prepared By: J. Collins Engineering Associates, LLC JCEA December, 2012 Revised January 2013 J. COLLINS ENGINRERING ,i ssocIATES, L.L.0 Page AGENDA ITEM # 8A JANUARY 28, 2013 SECTION 1.0 - INTRODUCTION 1.1 - Purpose The Selva Marina Country Club (SMCC) is seeking alternate options for a feasible long term irrigation water supply for the golf course. Current irrigation source is onsite storm water ponds and Sherman Creek, but the water supply is inadequate during periods of the year and has a high concentration of dissolved solids or salts. Over the last few years, SMCC has had the potential for development of additional housing unit and golf course upgrades. The plan for development has included the options of wells as a new supplemental water supply. In addition, the City of Atlantic Beach (COAB) previously conducted an analysis of upgrading Wastewater Treatment Facility #1 (WWTP #1) to provide reuse. This irrigation evaluation study described within includes an assessment of two water supply options: onsite supplemental water wells or utilizing reuse from WWTP #1. 1.2 - Scope of Services The scope of services included: Planning and preliminary design services for two irrigation options at SMCC include: New Onsite Wells at the SMCC to Supplement Current Source from Stormwater Ponds • Historical data evaluation included the review of documents provided by SMCC that includes existing maps of golf course, storm water ponds and irrigation system; proposed golf course improvements such as golf course modifications, development plans or concepts for new irrigation (costs, ideas and conceptual plan for supply wells, ponds and golf course irrigation system modifications). In addition, contact was made with St Johns River Water Management District (SJRWMD) staff to discuss the feasibility of permitting new wells (since the District has been involved in the preliminary design concepts with SMCC personnel). • Since SMCC has in the last few years looked closely at development that included using onsite wells for new irrigation sources, it was anticipated that the historical data available was significant enough that no preliminary design would be required. • Present a summary of findings and provide updated costs and description of work effort required to install and implement onsite wells for golf course irrigation. The results and findings are presented in this document (EVALUATION OF OPTIONS FOR LONGTERM IRRIGATION WATER J. COLLINS ENGINEERING ASSOCIATES, LLC Page AGENDA ITEM # 8A JANUARY 28, 2013 SUPPLY FOR SELVA MARINA COUNTRY CLUB). New Reuse Water Supply from City of Atlantic Beach • Historical data evaluation includes the review of Technical Memorandum #4 — Task 1 — Preliminary Evaluation for Reuse Treatment Components for Selva Marina Country Club (2008). • Review the previous reuse upgrades proposed in TM#4 and update costs and consider options to reduce the project costs • Develop method to transport reuse to the golf course to existing storm water pond or new pond and interconnect to existing golf course irrigation system. • Prepare a summary of findings and provide updated costs and description of work effort to install and implement reuse facility upgrade at or near WWTP #1 for irrigation purposes. The results and findings are presented in this document (EVALUATION OF OPTIONS FOR LONGTERM IRRIGATION WATER SUPPLY FOR SELVA MARINA COUNTRY CLUB). J. COLLINS ENGINEERING ASSOCIATES, LLC Page AGENDA ITEM # 8A JANUARY 28, 2013 SECTION 2.0 - IRRIGATION WATER SUPPLY OPTIONS 2.1 - Irrigation Water Supply Options Summary The two options evaluated for irrigation water supply at SMCC were: • New Onsite Wells at the SMCC to Supplement Current Irrigation Water Source from Stormwater Ponds /Sherman Creek • New Reuse Supply from City of Atlantic Beach to Replace Current SMCC Irrigation Water Supply 2.2 - New Onsite Wells (Supplemental Supply) 2.2.1. - Summary: JCEA and City Staff met with SMCC Officials during the study period and discussed the previous engineering and /or developer efforts to secure a supplemental water supply for the golf course. SMCC was very helpful with providing and discussing historical data and providing an onsite tour. During discussions with SMCC Officials, it was determined that the irrigation demand for the Golf Course is approximately 200,000 gallons /day with peak demands around 600,000 gallons /day. Therefore - if the stormwater ponds /Sherman Creek irrigation water supply was not available during dry periods, the supplemental wells would need to provide 200,000 gallons /day and have adequate storage to meet the peak demands. Based on the SMCC visits, meeting and review of historical data, the most recent current plan was to install ten (10) new surficial wells to provide supplemental irrigation; install new onsite storage pond (with liner); relocate or replace the existing golf course pumping station and install new piping to interconnect the new wells, new storage pond and new or relocated pumping station. In addition SMCC planning includes an updated golf course irrigation distribution system but this work is not relative to this water supply study (only considers water supply). While the scope of work did not include any Preliminary Engineering Design to supplement work accomplished at SMCC by others, it was our opinion that 10 wells from the surficial aquifer would most likely not be an adequate and reliable supplemental water supply. The key reasons for this were: • Based on historical wells in the area (data obtained from St. Johns River Water Management District historical well logs) - surficial aquifer wells will not deliver a reliable or adequate supplemental water supply. Alternate considerations would be utilization of a deeper wells from the Intermediate Aquifer and installation of more wells • The current St. Johns River Water Management District Consumptive Use Permit (CUP) #619 for SMCC allows for wells as a supplemental irrigation source. The permit allows for a total of 10 surficial aquifer wells but these J. COLLINs ENGINEERING ASSOCIATES, LLC Page 4 AGENDA ITEM # 8A JANUARY 28, 2013 wells are only permitted to be used on an emergency backup and for a grow -in period of developing new grass. The use of these wells for emergency irrigation are when the surface water supply is insufficient to provide irrigation to the golf course. Therefore, if the well option is implemented and the quantity of wells are increased or a deeper well is planned (Intermediate aquifer), a new or modified CUP permit would have to be obtained (requires new CUP application and renewal process). In order to develop an alternative solution to the proposed 10 well - surficial aquifer option proposed at SMCC, JCEA performed preliminary well designs within the scope and budget of this project (no additional fee). The preliminary design effort included discussion with two local well drillers. Based on the preliminary design efforts for the onsite wells; JCEA developed two well options: Option C -1 -25 Wells - New Design - Based on review of the 10 wells option, a new option was developed to install more wells drilled into the Intermediate Aquifer (to obtain a higher volume of irrigation water). While the number of wells could not be verified until the results of onsite test wells are installed and tested, a lower more conservative GPM was assigned to each well (based on historical wells and discussion with well drillers). The result is that as many as 25 wells would be required to develop a reliable supplemental irrigation water supply. Work under this option would include: A new application for a new or modified CUP; develop test wells; depending on the results - install up to twenty -five (25) new Intermediate Aquifer wells and a lined storage pond. The costs (capital, operating, maintenance, labor and life cycle) associated with this option (increased quantity of deeper wells) were developed. A construction estimate only was prepared for the new lined storage pond. The storage pond would be required in all well or reuse scenarios /options. For the basis of this report, the new storage pond would be constructed as a part of any re- development/site work of the SMCC property since the location of the pond is not known at the present time. While this option was developed to increase the quantity of irrigation water available (via an increase in the number of wells), the option is not ideal due to the permitting (SJWRMD) efforts required and the difficulty of locating as many as 25 wells and associated piping /electrical throughout the SMCC property. Option C -2 -10 Wells - Modified Design - To increase the like hood that 10 wells would provide an adequate supplemental water supply- a new conceptual plan was developed. Prepare a new application for a CUP and develop test wells for both Surficial and Intermediate Aquifer to determine available water supply. Depending on the expected results - install ten (10) new Intermediate Aquifer wells and a lined storage pond. Unfortunately, based on historical well data in the area - the 10 wells installed into the Intermediate Aquifer are still not expected to provide an adequate and reliable supplemental water supply. The costs (capital, operating and life cycle) associated with this option were developed but this option was removed from consideration due to the reliability factor (not meet J. COLLINs ENGINEERING AssOCIATEs, LLC Page AGENDA ITEM # 8A JANUARY 28, 2013 irrigation guantity demand). 2.2.2. - Cost Evaluation: The costs (capital, operating, maintenance, labor and life cycle) associated with Option C -1 (C -2 removed from consideration) are detailed below: • Construction - $399,960 • Total 20 Year Life Cycle Operation &Maintenance (O &M) Cost Estimate (includes construction, O &M and replacement costs) - $1,608,173 2.3 - New Reuse Water Supply from City of Atlantic Beach to Replace Current SMCC Irrigation Water Supply 2.3.1. - Summary: City of Atlantic Beach operates Wastewater Treatment Facility #1 (WWTP #1) just south of the SMCC that is capable without expansion of treating 3.5 MGD wastewater. Currently WWTP #1 is now equipped with effluent polishing filters that were installed during the recent Biological Nutrient Reduction Program. The new filters will now allow the city to produce reuse without the cost of adding new filters. In order to provide Public Access Reuse or Irrigation Quality Water, the improvements that the City would need to focus on to produce reuse water - would be upgrades to provide high level disinfection. As previously discussed, during discussions with SMCC Officials, it was determined that the irrigation demand for the Golf Course is approximately 200,000 gallons /day. For purposes of the reuse option in this report (development of options and costs) - all options are based on 250,000 gallons /day. With the amount of infrastructure in place and owned by the City in the vicinity of SMCC, the opportunity existed for multiple reuse upgrade options. This included construction at the current WWTP, construction at SMCC site (dedicated property to COAB) and considerations for use of existing piping to transport flow. Based on the preliminary design efforts for the reuse treatment facilities; JCEA developed the following multiple options: Option A - New Reuse Facility at WWTP#1 Site • A -1 New Ultraviolet Light (UV) Facility at WWTP #1 Site • A -2 New Dedicated Chlorine Contact Chamber (CCC) Facility at WWTP #1 Site A -3 Use of 1/2 of Existing CCC at WWTP #1 Site • A -4 Use Existing Aquastore Tank from Buccaneer Site at WWTP #1 Site Option A is shown in the following exhibit - General Layout for "A" Options - Reuse Treatment Located at WWTP #1. J. COLLINs ENGINEERING AssOCIATEs, LLC Page T q Seiva Marina CC 1 RcRequals 150 r New 8" Rouse Farce Main (approx. 21100') x AGENDA IThM # 8A JANUARY 2&, 2013 1l� 1' New Reuse Treatment & pumping Facility ` (located at WWTP #1) +.. —T• �C I W n, �r ' Y -, General Layout for "A" Options Reuse Treatment Located at WWTP Hi } J. COLLINS ENGINEERING Assoc IATES, LLC Page 7 AGENDA ITEM # 8A JANUARY 28, 2013 Option B - New Reuse Facility Offsite at SMCC ® B -1 New Offsite - Use Existing Aquastore Tank ® B -2 New UV Facility - Offsite Option B is shown in the following exhibit - General Layout for "B" Options - Reuse Treatment Located at SMCC. J. COLLINS ENGINEERING ASSOCIATES, LLC Page AGENDA ITEM # SA JANUARY 28, 2013 J. COLLINS ENGINEERING AssocIAT @8a LLC Page AGENDA ITEM # 8A JANUARY 28, 2013 Option D - New Reuse Facility at WWTP #1 Site (Use Existing 6" Pipe) • D -1 New UV Facility at WWTP #1 Site (Use Existing 6" Pipe) • D -2 New Dedicated CCC Facility at WWTP #1 Site (Use Existing 6" Pipe) • D -3 Use of 1/2 of Existing CCC at WWTP #1 Site (Use Existing 6" Pipe) • D -4 Use Existing Aquastore Tank from Buccaneer Site at WWTP #1 (Use Existing 6" Pipe) Option D is shown in the following exhibit - General Layout for "D" Options - Reuse Treatment Located at WWTP #1. J. COLLINS ENGINEERING ASSOCIATES, LLC Page 10 AGENDA Pf'EM 4 8A JANUARY 28, 2013 Attachment A at the end of this report contains schematic component preliminary J. COLLINS ENGINEERING ASSOCIATES, LLC rage 11 AGENDA ITEM # 8A JANUARY 28, 20I3 design details of the 10 options (A, B & D) for producing reuse water for irrigation purposes at the SMCC golf course. 2.3.2. - Cost Evaluation: The costs (capital, operating, maintenance, labor and life cycle) associated with each reuse facility option (A, B & D) is listed in Attachment B. Operation and Maintenance (O &M) costs vary for each reuse option - therefore each alternative was evaluated separately to determine the associated costs of items such as: labor, electrical , major maintenance expenses (which occur at various future dates depending on the life of the equipment), chlorine supplies and major consumable items. 2.4 - Findings and Recommendations 2.4.1. - Overview: As discussed within, the first task in the development of an irrigation source was to develop a number of viable alternatives. In order to compare multiple irrigation concepts and to determine the most cost effective selection - a total life cycle cost concept (LCC) was utilized. The LCC is a "whole life cost" analysis that determines the real cost of ownership over the life of an asset. Costs were developed for each alternative to include capital, operation, maintenance and labor costs. A life cycle comparison was then completed on all options and a comparison was made to select the most economical alternative /option. A table at the end of this report presents the results of Life Cycle Cost Comparison (LCC): The best and recommended alternative is the construction of a new reuse treatment facility at WWTP#1 referred to as Option D -1 - New UV Facility location at WWTP #1. 2.4.2. - Reuse Program Recommendations: If the City implements the recommended reuse option (Option D -1 New UV Facility at WWTP #1 Site - Use Existing 6" Pipe, there will be several coordination issues to address: 1. City would be constructing a new reuse facility that would produce an average of 200,000 gallons per day (gpd) of Public Access reuse water. For the golf course to meet the irrigation requirements during dry and hot periods, a lined storage pond (approximately 3 million gallons) would need to be constructed somewhere on the golf course by SMCC. For purposes of this report, the pond location was assumed to be in the southwest corner of the SMC property. If the pond is located in another area of SMCC, additional onsite pipe will be required to extend the reuse into the site of the new storage pond. 2. Implementation of Option D -1 will require the conversion of a portion of the J. COLLINS ENGINEERING ASSOCIATES, LLC Page 12 AGENDA ITEM # 8A JANUARY 28, 2013 existing 6" diameter force main from Fleet Landing to a reuse main. The new 12 "718" force main (part of the phase out of Buccaneer WWTP) is located in an easement in Fleet Landing and has adequate capacity to allow the Fleet Landing Lift Station to be interconnected and the 6" force main can then be abandoned. The interconnection to the new 12 "/18 "force main was part of the design, but coordination will be required with Fleet Landing to investigate the effect of the interconnection. The existing Lift Station may require pump modifications due to an increased pumping condition (higher head conditions). 3. The recommendation is to upsize the reuse treatment facility to 250,000 gpd for a safety factor and to allow the City the potential to provide residential reuse for any new homes constructed during the redevelopment of the SMCC property. While residential reuse was not part of the scope of this study, if in the future residential reuse is planned in the new home development of SMCC property, at a minimum a separate new reuse pipe would be required to deliver a pressurized reuse. The existing 6" pipe is only adequate to be used for filling the new storage pond with reuse water. In order to deliver pressurized reuse water to the new residential homes, a new separate reuse pipe from WWTP #1 would be required as well as the addition of higher pressure pumps, also located at WWTP#1. 4. A new reuse facility at WWTP#1 can be implemented to provide a reliable irrigation supply for SMCC, but the recommended option (UV Reuse Treatment Facility)is only sized to provide reuse for the immediate use by the SMCC golf course and includes a reasonable amount of new homes. In the event the City decides to provide reuse to other areas, the proposed UV treatment capacity would have to be upsized or replaced and new reuse pipes as well as reuse pumps would be required in order to expand this new reuse facility. J. COLLINs ENGINEERING ASSOCIATES, LLC Page 13 Selva Marina CC Irri ation Water Supply Op tions , .. Option & Description Construction Cost 20- ear Total LCC New Ponds Const. Cost Total 20 -yr LCC + New Ponds Total Const. Cdst (includes New Ponds A -1: New UV Facility at WWTP #1 $744,448 $1,397,543 $429,125 $1,826,668 $1,173,573 A -2: New Dedicated CCC at WWTP #I $675,328 $1,680,068 $429.125 S2.109,193 $1,104,453 A -3: Use 1/2 of Existing CCC at WWTP #1 $667,648 $1,727,626 $429,125 $2,156,751 $1,096,773 A -4: Use A uastore tank from Bucc site $706,048 $1,766,026 $429,125 $2,195,1S1 $1,135,173 B -1: Offsite using A uastore tank $558r720 $1,611,730 $429,125 $2,040,855 $987,845 B -2: New UV Facility Off -Site $565,120 $1,250,225 $429,125 $1,679,350 $994,245 D -2: New Dedicated 1 $457,6001 $1,517,SZ8-1 $429,125 $1,946,703 $886,725 D -3: Use 1/2 of Existing CCC at WWTP #1 - Use exist 6" $449,9201 $1,509,8981 $429,125 $1,9 39,023 $879,045 D -4: Use A uastore tank from Bucc site- Use exist 6" i $488,3201 1 548 298 1$429,125 $1,977,423 $917,445 New Ponds (Capital Cost Only) $429,125 a c� �a �c y N m 00 y O � w °O