2009-06-23_PWETC_AgendaPacket - Laserfiche WebLink

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According to the U.S. EPA combusting one ton of mixed municipal solid waste (MSW) instead of landfilling avoids the production of .61 tons of carbon dioxide equivalents. CO2 is the main gas linked to global warming. 20) How does a garbage truck cause damage? MnDOT estimates than one garbage truck trip down a street is equivalent to 1,000 car trips down the same street. That's substantially more wear. Also when trucks are stopped for collection they put pressure on the pavement. Newer trucks have technology that allows for compaction while moving which has lowered the amount of stoppage time. A study from the University of Michigan Transportation Institute shows that starting forward and stopping by garbage trucks increases the amount of wear depending on the speed of the truck and the weight of the load being carried. That factor can be a 50% to 100% increase in wear. 21) Side Load tandem axle trucks don't cause as much damage as rear loading single axle trucks. Side load trucks have an extra axle that means that less weight is transferred from the truck to the point of impact with the street. Thus there is less wear caused by a side loading truck as compared to a rear loading truck. But there is still a significant amount of wear caused. 22) Trucks have to meet new efficiency standards so the diesel exhaust is not as bad a problem as people make it out to be. Trucks that are 2007 model and newer have to meet lower federal emissions standards. California has even tighter emissions standards and fleets there are switching to compressed natural gas and other alternative fuels. However, significant amounts of the fleets currently operating in Roseville do not have to meet the higher emissions standards. Roseville could negotiate with the haulers to ensure than only newer vehicles are used to service the City. 23) Waste incineration emits harmful substances into the air & the ash has to be landfilled. Plants that burn waste to generate electricity are newer than most of the coal fired plants in the state. Thus they have to meet much more stringent emissions standards. The waste burning plants are well below their emissions ceilings. The ash from the incineration is inert. Some fly ash (from the smokestack) has been used as an ingredient in cement. Burn plants are seeking permission to find more uses for more of their ash. Ash that is landfilled is sent to special landfills. It is not allowed to be stored above ground or near bodies of water as was the case with the coal ash spill in Tennessee. 24) Can the city negotiate senior discount rates? Trucks that are 2007 model and newer have to meet lower federal emissions standards. California has even tighter emissions standards and fleets there are switching to compressed natural gas and other alternative fuels.