01/08/2007 Council Packet - Laserfiche WebLink

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Anoka County Multi- Jurisdictional All Hazards Mitigation Plan roadways. Hazardous Materials transportation is a major concern in Anoka County, as there is little information regarding what is traveling on the county road system on a daily basis. Rail transportation risks from hazardous materials affect Anoka County. According to Mn /DOT, approximately 11% of all statewide transportation incidents involving hazardous material in 2002 were from rail transport. Valve leakage and releases are sources of spills on pressurized and general service tank cars. Other hazardous materials containers such as covered hoppers, inter -modal trailers /containers, or portable tanks are additional sources. These leaks manifest themselves as odors or vaporous clouds from tanker top valves, spraying or splashing from tanker top valves, wetness on the side of the car, or drainage from the bottom outlet valve. Depending on the type of rail car involved a leak or spill could result in hundreds to thousands of gallons /pounds of a substance being released. Interstate Pipeline Hazardous Materials Incident is an uncontrolled release of hazardous materials from pipelines. There are a significant number of interstate natural gas and petroleum pipelines running through Minnesota. The pipelines are used to provide natural gas to the utilities in Minnesota and transport materials to the northeastern U.S. Significant releases from these pipelines occur, on average, twice a year, affecting up to several dozen people at a time. Blaine has experienced major Hazard Spill /Release Incidents. Two of the largest occurred in 1996, a large Freon Release and thousands of gas line hits and breaks during a severe storm. The first was a large Freon Release from an Ice Arena at 4201 North Road — Centennial High School. Freon from the ice arenas refrigeration system leaked and was exposed to a flame that changed the chemical make up of the Freon to phosgene gas. Two firefighters had minor exposure to this product and were transport to the hospital for observation and were later released. The second was extensive damage to natural gas main hits and breaks. The expectation is that Freon releases likelihood of occurrence will increase as the number of ice facilities in the city continues to increase. The loss impact of a future occurrence is greater due to the increase in arenas within the city. Due to the fact that this is a northern climate, the city relies on natural gas for heating in the winter months; loss of this service could result in increased property loss to the lack of heat within buildings. Centerville has experienced multiple fuel spills that occur occasionally. Some of these spills occur near Clearwater Creek causing creek contamination. The future likelihood of these occurrences is rated as moderate and the impact low. Coon Rapids also has experienced hazard chemical spills of a much larger nature. On 01/15/2005 debris on railroad tracks punctured a rail car, resulting in spill of 3000 gallons of fuel; on 02/01/2001 a spill of 500+ gallons of gasoline at a service station and on 01/11/200 a chemicals spill in a science lab at the high school. Hazard spills continue to increase and the likelihood of occurrence is high with the impact moderate. Oak Grove experienced a major oil Pipeline spill in 1985 and Landfill contaminants impacting the local water system. In the pipeline spill of 1985, 15 homes were evacuated on Cedar Creek Drive and ground and water samples were taken to rule out the possibility of contamination. The landfill contaminants continue to be monitored and the landfill has yearly maintenance to reduce the possibility of occurrence. The likelihood of future occurrence is moderate and the impact is predicted to be moderate. • Ramsey experienced a Propane Gas Explosion on July 3, 1998. Vehicle and railroad traffic was impacted (state highway corridor). The incident resulted in one injury and significant structure