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Home My WebLink AboutBulk Fuel Study Presentation 12 17 2013_201401231159567075Nantucket Bulk Fuel Farm PRESENTED BY Leo Roy, David Pickart, Bill Taber, and Randy Hart December 17, 2013 Presentation Outline Introduction Environmental conditions (tank farm site and route) Existing/future fuel needs Transportation of products Fuel farm concepts and permitting Next steps Project Locus Existing Tank Farm Transportation Route New Tank Farm Site Rare Species/Aquifer Existing Tank Farm Transportation Route New Tank Farm Site Wetlands/Floodplain Existing Tank Farm New Tank Farm Site Harbor Fuel Tank Farm 11 aboveground fuel storage tanks Total volume 954,000 gallons Storing gasoline, diesel and heating oil Harbor Fuel Tank Farm Heating oil and diesel fuel delivered to the site by barge Gasoline delivered by tanker trucks on steamship authority ferry Existing Conditions Harbor Fuel Tank Farm Fuel trucks loaded at tank farm then deliver to customers across the island Existing Conditions Harbor Fuel Tank Farm Boat Basin fuel supplied directly from the tank farm 2013 Fuel Consumption in Gallons Nantucket fuel usage about 14 million gallons per year Aviation Fuel Gasoline No. 2 Oil/Diesel Propane 1.5 M 4.5 M 4.0 M 4.0 M Current Fuel Transportation 10 Million Gallons of Fuel Delivered by Steamship Authority 4 Million Gallons of Fuel Delivered by Barges Future Fuel Considerations Increase in consumption estimate 1% per year Changes in fuel mix Proposed Fuel Tank Layout Proposed Future Consumption 2018 Max Monthly Demand Max Demand Month Receipt Trucks (10,000 gal) Issue Track (2800/5000 gal) Regular Gasoline 676,071 July 68 136 Premium Gasoline 75,119 July 8 16 Diesel 121,000 October 13 25 Fuel Out 33,187 October 34 119 Bio-Heat *Volume recorded in US gallons 2018 Selected Tank Dimensions Max Monthly Demand Max Demand Month Contingency Volume Required Ullage Diameter Height Capacity No. of Tanks Total Ullage Regular Gasoline 676,071 July 82,467 758,538 40 42 394,800 2 789,600 Premium Gasoline 75,119 July 9,163 84,282 20 18 424,20 2 84,840 Diesel 121,000 October 60,500 181,500 40 36 95,349 2 190,680 Fuel Out 331,870 October 331,870 663,740 40 36 338,520 2 677,040 Bio-Heat 0 See note 2 40 36 338,520 1 338,520 1) Volume recorded in US gallons, dimensions are in feet 2) Biofuel demand assumed to eventually displace No #2 fuel oil therefore future demand is equal to #2 Proposed Future Consumption (continued) Transportation Assessment Reviewed route Identified key intersection and locations Safety history of locations Geometric conditions Traffic volumes Existing fuel delivery schedules Future fuel delivery scenarios Future proposed improvements Proposed Bunker Tank Farm Site Nantucket’s Truck Route Nantucket Truck Route Steamship Authority Ferry Terminal New Whale Street Tank Farm Key Locations Along Route Nantucket Truck Route Steamship Authority Ferry Terminal New Whale Street Tank Farm Union St. at Orange St. Union St. Corner Washington St. Francis St. Union St. at Francis St. Milestone Rotary Broad St. at S Water St. Key Locations for Traffic and Safety Review Nantucket Truck Route Key Location ATR Location Safety History •The intersections of Union Street at Francis Street and the Milestone Roundabout each experience an average 1.33 accidents per year. •All other locations have fewer than 1 accident per year on average ATR Peak Friday Daily: 10,200 vpd •Sight distance restrictions for Francis Street eastbound and Washington Street southbound •Trucks require entire intersection to make turns Transportation Constraints Washington St. at Francis St. Nantucket Truck Route Example of Tractor Trailer Movement Through Intersection •Sight distance restrictions due to house on northeast corner of intersection •Trucks require the entire intersection to make turns •Nantucket Lightship Basket Museum’s staircase is adjacent to intersection and has history of being hit by vehicles Transportation Constraints Union St. at Francis St. Nantucket Truck Route •Restricted sight distance around curve •Speeding concerns heading into curve •Narrow lanes (~10-feet) Transportation Constraints Union St. Corner Nantucket Truck Route •Trucks require the entire intersection to make turns Transportation Constraints Orange St. at Union St. Nantucket Truck Route Existing Fuel Deliveries Type of Fuel Yearly Total Throughput (gal/year) Peak Month(s) Peak Month Throughput (gal/month) Trucks Required in Peak Month (trucks/month) Barges Required in Peak Month (barges/month) Truck Deliveries Gasoline 2,400,000 Summer – July & Aug. 630,000 55 Heating Oil 520,000 Fall – Sept. & Oct. 75,000 8 Total 2,920,00 Barge Deliveries Diesel 525,000 Fall – Sept. & Oct. 100,000 2 to 3 Heating Oil 2,800,000 Fall – Sept. & Oct. 400,000 2 to 3 Total 3,325,000 Future Fuel Deliveries Option 1 – All Truck Deliveries Type of Fuel Yearly Total Throughput (gal/year) Peak Month(s) Peak Month Throughput (gal/month) Trucks Required in Peak Month (trucks/month) Increase in Trucks (trucks/month) Truck Deliveries Heating Oil 3,650,000 Fall – Sept. & Oct 520,000 52 +44 Gasoline 2,640,000 Summer – July & Aug 680,000 59 +4 Diesel 580,000 Fall – Sept. & Oct. 110,000 11 +11 Total 6,870,000 Type of Fuel Yearly Total Throughput (gal/year) Peak Month(s) Peak Month Throughput (gal/month) Trucks Required in Peak Month (trucks/month) Barges Required in Peak Month (barges/month) Trucks Required to Transport Fuel from Barge (trucks/month) Increase in Trucks (trucks/month) Truck Deliveries Gasoline 2,640,000 Summer – July & Aug 680,000 59 +4 Heating Oil 570,000 Fall – Sept. & Oct. 82,000 9 +1 Total 3,210,000 Barge Deliveries Diesel 580,000 Fall – Sept. & Oct 110,000 2 to 3 (11) 22* +11 (22) Heating Oil 3,080,000 Fall – Sept. & Oct 440,000 2 to 3 (44) 157* +44 (157) Total 3,660,000 *Trucks based upon the assumption that Nantucket will upgrade to 10,000 gallon trucks. The numbers in () are based upon 5,000 gasoline and 2,800 heating oil trucks Nantucket currently operates. Nantucket’s current fleet ranges from 1,400 to 5,000 gallon trucks for on-island transporting. Future Fuel Deliveries Option 2 – Barge & Truck Deliveries Potential Improvements Nantucket Truck Route Improvement Location Potential Improvements Washington St. at Francis St. Nantucket Truck Route •Ideal treatment would be to improve sight lines; however, there are implications to private properties. •Restripe pavement markings •Other consideration would be to install a truck based signal at the intersection. When a truck is present, the signal would go from flashing to red on other approaches to allow the truck to get through. Potential Improvements Union St. at Francis St. Nantucket Truck Route •Town of Nantucket has already begun the process to open up the intersection and improve sight lines: •Relocation of Nantucket Lightship Basket Museum’s stairs to other side of the building •Purchase of property at 50 Union Street •Restripe pavement markings •Install secondary STOP bars and signage on approaches for when trucks are present, allowing the trucks to have full use of the intersection. •Traffic Calming measures to slow vehicles down through curve: •Restriping of centerline through intersection •Installing signage to warn motorist of the upcoming curve in the roadway •Other considerations would be to install a flashing beacon that is activated by oncoming traffic. Potential Improvements Union St. Corner Nantucket Truck Route Potential Improvements Orange St. at Union St. Nantucket Truck Route •Maintain existing sight lines. •Restripe pavement markings •Install secondary STOP bars/signage on approaches for when trucks are present, allowing the trucks to have full use of the intersection. Preliminary Findings Constraints for large trucks exist at a number of locations along the truck route. Relocating the tank farm to the Bunker Site will result in an increase in fuel truck trips along the truck route. Truck trips should be restricted to off-peak periods (when possible) to minimize the impact to the roadway system. Improvement priority should be directed to improving sight distance and operational/safety at key locations identified. Permit Requirements Federal NPDES CGP and MSGP State MA FPR Local NPB special permit, ZBA height variance, WPA order of conditions (roadway improvements), Flammable Materials Act and building/fuel storage permit Next Steps and Final Report Gather feedback from Town and Public (that is why we are here) Complete conceptual design and fiscal assessment Complete the report and issue to the town (end of January) Assist the town moving forward as necessary to plan for and implement the needed infrastructure