BOARD OF COUNTY COMMISSIONERS AGENDA ITEM SUMMARY. Meeting Date: January 31, 2013 Division: Engineering & Public Works

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1 BOARD OF COUNTY COMMISSIONERS AGENDA ITEM SUMMARY Meeting Date: January 31, 2013 Division: Engineering & Public Works Bulk Item: Yes No X Department: Wastewater Staff Contact Person/Phone #:Wilson ( )_ AGENDA ITEM WORDING: Discussion and direction of whether the County will fund conversion from low pressure collection systems (aka grinder pumps) to gravity collection systems for any additional areas of the Cudjoe Regional wastewater collection system. ITEM BACKGROUND: The Cudjoe Regional Wastewater project team (FKAA & County Staff) continues to receive requests to convert areas designated to receive low pressure (grinder pump) service to gravity collection. FKAA is developing and will present a comprehensive review of the remaining areas to be served by low pressure systems with cost estimates for additional areas that have expressed interest in conversion to gravity collection should additional areas be converted. PREVIOUS RELEVANT BOCC ACTION: On 11 December 2013 the BOC directed staff to obtain cost proposals and recommendations whether additional areas of the Cudjoe Regional sewer system should be converted from low pressure to gravity collection. The BOCC directed staf to report back in January In early January 2014, the BOCC set a special meeting for 31 January 2014 to hear the report. On October 16, 2013, the BOCC approved conversion of a number of neighborhoods including Buttonwood and Allamanda Drives on Lower Sugarloaf; Loggerhead Lane of Upper Sugarloaf; several streets in Cudjoe Gardens and Cudjoe Shores; and portions of Eden Pines, Doctors Arm; Big Pine North, and Big Pine South neighborhoods. The quoted cost of those conversions was $10.1 million. In July 2013 the BOCC approved a $122,010 expansion of the service area to include six properties on Upper Sugarloaf using low pressure technology. In January 2013 the BOCC approved adding 154 additional properties to the central service area using low pressure technology at a cost of $1.8 million. CONTRACT/AGREEMENT CHANGES: N/A STAFF RECOMMENDATIONS: TBD TOTAL COST: TBD INDIRECT COST: BUDGETED: Yes No _X_ DIFFERENTIAL OF LOCAL PREFERENCE: N/A COST TO COUNTY: TBD SOURCE OF FUNDS: FUND312/304 REVENUE PRODUCING: Yes No X AMOUNT PER MONTH Year APPROVED BY: County Atty OMB/Purchasing Risk Management DOCUMENTATION: Included X Not Required

2 DISPOSITION: AGENDA ITEM # Revised 7/09

3 October 2013 Costs for Areas Approved for Conversion from Low Pressure to Gravity

4 CUDJOE REGIONAL WASTEWATER PROGRAM Cost Differences for Converting Low Pressure Sewer (LPS) to Gravity Sewer Systems With Pavement (As of August 1, 2013) Added Cost for Gravity Added Cost per EDU Current Systemwide Adjusted Total Island Neighborhood EDUs Converted System With Pavement for Gravity System Cost per EDU Cost per EDU Lower Sugarloaf Buttonwood Drive 14 $ 307,899 $ 21,993 $ 38,569 Allamanda Drive 26 $ 348,560 $ 13,406 $ 29,982 Sub Total 40 $ 656,459 $ 16,411 $ 32,987 Upper Sugarloaf Loggerhead Lane 46 $ 449,620 $ 9,774 $ 26,350 Sub Total 46 $ 449,620 $ 9,774 $ 26,350 Cudjoe Key Cudjoe Gardens 134 $ 1,297,286 $ 9,681 $ 26,257 Cudjoe Shores 33 $ 267,132 $ 8,095 $ 24,671 Sub Total 167 $ 1,564,418 $ 9,368 $ 25,944 Big Pine Eden Pines 320 $ 1,839,639 $ 5,749 $ 22,325 Doctors Arm 384 $ 3,449,465 $ 8,983 $ 25,559 Big Pine North 66 $ 662,299 $ 10,035 $ 26,611 Big Pine South 129 $ 1,490,928 $ 11,558 $ 28,134 Sub Total 899 $ 7,442,331 $ 8,278 $ 24,854 Estimated Total Added Cost 1,152 $ 10,112,827 $ 8,778 $ 25,355 Expected Negotiated Cost Range** $10 11 milion **Anticipate contractor delays Current Contract Current EDU Count Cost Per EDU Amounts (WW ONLY) INNER ISLES $ 34,861,048 OUTER ISLES $ 79,557,440 WWTP $ 21,963,963 CM BUDGET $ 7,000,000 $ 143,382,451 8,650 C:\Users\wilson kevin\desktop\!cudjoe SEWERS\LPS v Gravity\Cudjoe grinders summary\gravitization Sewer Cost Summary (as app'd at OCT BOCC mtg) 1/19/2014 Page 1 of 1

5 Updated costs from FKAA for Already Approved Conversions January 2014

6 CUDJOE REGIONAL WASTEWATER PROGRAM Cost Differences for Converting Low Pressure Sewer to Gravity Sewer Systems (As of January 2014) A. NEIGHBORHOODS APPROVED FOR CONVERSION IN OCT Island Neighborhood EDUs E s Expected Costs, 1/14 Added Cost per EDU Current Systemwide e Adjusted Total Converted for Gravity System Cost per EDU e Cost per EDU Lower Sugarloaf Buttonwood Drive 14 $ 212,785 $ 15,199 $ 31,775 Allamanda Drive 28 $ 251,318 $ 9,666 $ 26,242 LSK Sub Total $ 464,103 Upper Sugarloaf Loggerhead 46 $ 440,000 $ 9,565 $ 26,141 USK Sub Total $ 440,000 Cudjoe Key Cudjoe Gardens 134 $ 1,047,000 $ 7,813 $ 24,389 Cudjoe Shores 33 $ 213,760 $ 6,478 $ 23,054 Cudjoe Sub Total $ 1,260,760 Big Pine Eden Pines 309 $ 3,135,573 $ 10,147 $ 26,723 Doctors Arm 366 $ 4,795,748 $ 13,103 $ 29,679 Big Pine North 66 $ 816,372 $ 12,369 $ 28,945 Big Pine South 65 $ 916,411 $ 14,099 $ 30,675 BPK Sub Total $ 9,664,104 Estimated Total Added Cost 1,061 $ 11,828,967 $ 11,149 $ 27,725 C:\Users\wilson kevin\desktop\cudjoe JAN 2014 backup\gravitization Sewer Cost Summary /19/2014 Page 1 of 1

7 Gravity Conversion Costs for Additional Areas January 2014

8 CUDJOE REGIONAL WASTEWATER PROGRAM Cost Differences for Converting Low Pressure Sewer to Gravity Sewer Systems (As of January 2014) B. NEIGHBORHOODS CURRENTLY REQUESTING CONVERSION JAN Island Neighborhood EDUs E s Expected Costs, 1/14 Added Cost per EDU Current Systemwide e Adjusted Total Converted for Gravity System Cost per EDU e Cost per EDU Upper Sugarloaf E. of Crane Blvd 65 $ 1,185,485 $ 18,238 $ 34,814 Cudjoe Puerto Bello ** 80 $ 711,900 $ 8,899 $ 25,475 Ramrod Basin D 150 $ 3,447,828 $ 22,986 $ 39,562 Little Torch Basin G 156 $ 2,658,505 $ 17,042 $ 33,618 Basin H 56 $ 1,251,491 $ 22,348 $ 38,924 Basin F 39 $ 1,853,169 $ 47,517 $ 64,093 Little Torch Subtotal $ 5,763,165 Big Pine Basin J** 121 $ 1,667,960 $ 13,785 $ 30,361 Basin P 158 $ 3,455,336 $ 21,869 $ 38,445 Basin I 129 $ 3,149,990 $ 24,419 $ 40,995 Basin M 41 $ 1,437,616 $ 35,064 $ 51,640 Basin N 49 $ 1,955,467 $ 39,907 $ 56,483 Basin K 15 $ 758,704 $ 50,580 $ 67,156 $ 12,425,073 Estimated Total Added Cost 1059 $ 23,533,451 $ 26,888 $ 43,464 ** These neighborhoods have unit costs within the range of those approved by the BOCC in October. C:\Users\wilson kevin\desktop\cudjoe JAN 2014 backup\gravitization Sewer Cost Summary /19/2014 Page 1 of 1

9 Maps of Additional Areas Evaluated January 2014 (Notes: -See Legend in Lower right Corner -Green areas are already gravity -Yellow Areas are Currently Low Pressure -Black Outlines are areas considered Areas considered are subsets of the Basins)

10 L Q LITTLE TORCH KEY O F G P J I RAMROD KEY F D H G E Florida Keys Aqueduct Authority 1100 Kennedy Drive Key West, Florida Telephone (305) Prepared by: Joshua W. Peele Florida Keys Aqueduct Authority K BIG PINE KEY Legend Basins FLORIDA KEYS AQUEDUCT AUTHORITY Centralized Service Area CENTRAL CUDJOE REGIONAL WASTEWATER SYSTEM Low Pressure Sewer Gravity Sewer CONCEPTUAL BUDGET Source: ASSESSMENT AREAS Esri, DigitalGlobe, GeoEye, i-cubed, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and Rthe GIS User Community.