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Home My WebLink About2012-04-04 PACKET 04.G.REQUEST OF CITY COUNCIL ACTION COUNCIL AGENDA MEETING ITEM # L/ DATE 4/4/12 , PREPARED BY Engineering Department ORIGINATING DEPARTMENT Jennifer Levitt STAFF AUTHOR ***************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** COUNCIL ACTION REQUEST: Consider adopting a resolution authorizing the preparation of a feasibility report for the Watermain Extension to the Marathon Tank Farm. STAFF RECOMMENDATION Adopt a resolution authorizing the preparation of a feasibility report for the Watermain Extension to the Marathon Tank Farm. ADVISORY COMMISSION ACTION DATE REVIEWED APPROVED DENIED ❑ PLANNING ❑ ❑ ❑ ❑ PUBLIC SAFETY ❑ ❑ ❑ ❑ PUBLIC WORKS ❑ ❑ ❑ ❑ PARKS AND RECREATION ❑ ❑ ❑ ❑ HUMAN SERVICES /RIGHTS ❑ ❑ ❑ ❑ ECONOMIC DEV. AUTHORITY ❑ ❑ ❑ ❑ ❑ ❑ ❑ SUPPORTING DOCUMENTS ❑ MEMO /LETTER: Jennifer Levitt, March 30, 2012 ❑ RESOLUTION: ❑ ORDINANCE: ❑ ENGINEERING RECOMMENDATION: ❑ LEGAL RECOMMENDATION: ® OTHER: Jason K. Bordewyk, March 4,2011; Steve Lee, November 8, 2011 ADMINISTRATORS COMMENTS 7 City Administrator Date ***************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** COUNCIL ACTION TAKEN: ❑ APPROVED ❑ DENIED ❑ OTHER H: \COUNCIL FORMS \COUNCIL 2012 \Council 4 -4 -12 \Council Action Form Marathon Tank Farm.doc RESOLUTION AUTHORIZING THE PREPARATION i FEASIBILITY REPORT FOR THE WATERMAIN EXTENSION TO THE MARATHON TANK FARM. WHEREAS, the Public Safety Department had concerns regarding the amount and pressure of the water that can be supplied to the area around the Marathon Tank Farm on 85 Street South in Cottage Grove; and WHEREAS, an analysis was completed in March of 2011 for the water pressure and flow for the area surrounding the facility; and WHEREAS, it was found there was an insufficient fire flow for the area to fight a fire at the Tank Farm; and WHEREAS, in November 2011 a tabletop exercise was conducted by WAKOTA CAER regarding a crude oil tank fire and the Tank Farm. WHEREAS, since the completion of the tabletop exercise the City has been contacted by Koch requesting that further evaluation be done for extending an additional waterline to the facility to improve fire flow to the area and have agreed to pay half of the cost which is approximately $2500; and 13-MEI WHEREAS, the City's portion would be paid for from the Water Area NOW, THEREFORE, BE IT RESOLVED, by the City Council of the City of Cottage Grove, County of Washington, State of Minnesota, authorizing the resolution for the preparation of a feasibility report for the watermain extension to the Marathon Tank Farm Passed this 4 day of April, 2012. Myron Bailey, Mayor Attest: Caron M. Stransky, City Clerk City of otta Grove Minnesota To: Honorable Mayor and City Council Ryan Schroeder, City Administrator From: Jennifer Levitt, City Engineer Date: March 30, 2012 Subject: Authorize Preparation of Feasibility Report for Watermain Extension to Marathon Tank Farm Background The Public Safety Department had concerns regarding the amount and Pressure of the water that can be supplied to the area around the Marathon Tank Farm on 85 Street South in Cottage Grove. In response to the concern an analysis was completed in March of 2011 for the water pressure and flow for the area surrounding the facility. Please see the enclosed memo dated March 4, 2011 and corresponding figures regarding the existing fire flows and proposed fire flows if a watermain is extended. It was found there was an insufficient fire flow for the area to fight a fire at the Tank Farm. In November of 2011 a tabletop exercise was conducted by WAKOTA CAER regarding a crude oil tank fire at the Tank Farm. The exercise reviewed various types of fires, seal fire versus a tank fire, and the risks that each present. Since that exercise the City has been contacted by Koch, requesting that further evaluation be done for extending an additional waterline to the facility to improve fire flow to the area. They have agreed to pay half of the cost of conducting a feasibility report for this work, which is approximately $2,500. The City portion of the feasibility will be paid for from the Water Area Fund. Discussion Feasibility Report: The next step in the project development process is the preparation of a feasibility report. It is recommended that the feasibility report be ordered at this time to determine the physical and economical feasibility of providing the necessary public improvements. Recommendation It is recommended the Council adopt a resolution authorizing the preparation of a feasibility report for the Watermain Extension to the Marathon Tank Farm. To: Harry Taylor, Jennifer Levitt I Project: 048 -00000 I Date: 04 MAR 2011 City of Cottage Grove From: Jason K. Bordewyk I Cc: Dave Hanson, Mike Boex Re: Marathon Tank Farm Fire Flow Analysis I Client: City of Cottage Grove 2335 Highway 36 W St. Paul, MN 55113 Tel 651- 636 -4600 Fax 651- 636 -1311 www.bonestroo.com As requested, Bonestroo reviewed several options for proposed water main to increase the available fire flow for the Marathon Tank Farm property, located south of 85th Street and west of Granada Avenue. Figure 1 illustrates the existing water system in the vicinity of the Marathon Tank Farm property and the proposed future water mains. Fire hydrants are illustrated on the figure representing the hydraulic modeling locations used for analysis along the Marathon Tank Farm property. The proposed water main extends west from the existing 18 inch water main at 92n Street and Hadley Avenue through the undeveloped property as proposed in the City's Water Supply and Distribution Plan completed in January 2006. The proposed 18 inch water main is connected to the existing 8 inch water main on Grenadier Avenue and extended west to the southern boundary of the property to provide supply to the proposed future River Pressure Zone and the Marathon Tank Farm property. To provide adequate fire flow for the Marathon Tank Farm property, a minimum 12 inch water main is recommended along the western property boundary to connect the proposed 18 inch water main and the existing 6 inch water main on 85 Street. The hydraulic model was analyzed using existing maximum day demands with Wells No. 2 and 10 producing 2,000 gpm. Both the 0.5 MG Low Zone and 0.15 MG Grange Water Towers are modeled with a water level 10 ft below overflow (approximately 925 ft HGQ. The two pressure reducing valves between the Intermediate and Low Zones are not actively supplying water and no water is supplied to Saint Paul Park during the evaluations. The hydraulic model calculates the maximum available fire flow at the modeled junctions while maintaining adequate water system pressure at all locations in the pressure zone. Fire hydrants and the hydrant leads ; typically reduce the total available flow. In some locations, more than one hydrant may be required to supply the available fire flow. Therefore, the available fire flow is the maximum available flow at the modeled location, not necessarily the amount available at a single fire hydrant in the field. The hydraulic model was analyzed with the existing water main layout and with the proposed water mains. Figure 2 illustrates the available fire flow calculated in the vicinity of the site with and without proposed water mains. The following specific results with the proposed 18 inch and 12 inch water mains are provided based on hydraulic model analysis: • The proposed 12 inch water main along the west side of the Marathon Tank Farm property will provide over 3,500 gpm available fire flow at all three modeled locations while maintaining greater than 25 psi in the Low Pressure Zone. • Along the proposed 18 inch water main pipe available fire flow exceeds 5,000 gpm while maintaining greater than 30 psi throughout the Low Pressure Zone, Page 1 of 4 i ri 0 N U j a x 00 I C� - o J J � W � O ai � I11 o LL LL L U) Y C ry c w o m < W LL U) O T LL 5 0 °a ry Will 1 w U) 7 � LLJ Z F X LLI 3nN3MOVNVb9 Y I � J Lq � O u ■ w ■ w U ■ rn ■ ■ 3nN3AV A3l4VH ■ w ■■ ■■ ■; O O O N 0 0 LO r O LU W LL 0 0 Lo 3nN3AVV CIVMJ9 I 4 ui LL L=u CO i •. ® Y A O 0 Lo LL Z w LL U) IM J IM W J i J Q • . . F-- w CO A � tn W O m Ir z O a D J 0 L U w p Z J Z LL, o W > LL c� L< LU Y p Z g C) O li 2 0 p o 0 O 0 Qco U 2 o ! w 0 ■ � m • w O ■ co L1J t p Q ■ d 3: U ■ 0 = 4 ■ a zv Z i• ■ ¢ ■ X L1J uj Lue o Q LL 0 En . • 4 Y O ■ (� c NIVW bJKVM HONI U 43SOMJd 3nN3AVV CIVMJ9 I 4 ui LL L=u CO i •. ® Y A O 0 Lo LL Z w LL U) IM J IM W J i J Q • . . F-- w CO A � tn W O m Ir z O a D J 0 L U w p Z J Z LL, o W > LL c� L< LU Y p Z g C) O li 2 0 p o 0 O 0 Qco U 2 o i 1 ,1, 1 1 re. M 0 FITIPIN MT=ZTQ1 nFITITIN Date: November 8, 2011 Location: WAKOTA CAER Office 7420 E Point Douglas Rd S Cottage Grove, MN Facilitator: Steve Lee — MPCA Planning Committee: Bob Byerly — Cottage Grove Fire, Pete Herpst — Flint Hill Resources, Jim Stockinger — MPCA Purpose: WAKOTA CAER is committed to helping its members and the surrounding communities of southern Washington County and Northern Dakota County maintain a high level of emergency preparedness. The WAKOTA CAER primary area of operation includes the 2 major oil refineries and several "tank farms" utilized for the production and distribution of petroleum products around the State. A scenario of concern for many local response organizations is the possibility for a tank fire at one of these facilities. This exercise is designed to bring the petroleum industry and local responders together to discuss the mitigation of such an incident. Objective: • Present information on the hazards and mitigation techniques required to respond to a tank fire incident, • Discuss resource requirements necessary to mitigate a tank fire, • Discuss the public safety issues related to a tank fire, • Discuss strategies to monitor and mitigate the public safety concerns, • Discuss tactics which should be considered in order to contain, control and extinguish a tank fire. Description: Chief Bob Byerly, CGFD, will begin with a brief presentations outlining the concerns from the local emergency responders related to a tank fire in / near a residential area. Deputy Chief Pete Herpst, FHR, will then present information related to the type of fires, seal fire vs tank fire, and the risks they each present. The group will be presented with a scenario and discuss the objectives, strategies and the potential tactical options for the response to the scenario. Discussion will focus on: 1. Public safety concerns: a. Evacuation / Shelter -in -place b. Messaging / Nofitications c. Security d. Exposure protection 2. Resources Requirements a. Personnel b. Water flow c. Fire fighting foam 3. Time Frames