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Measurement of Contaminants as Collected <br />Describe you plan for measuring the frequency (e.g., percent of SUDS that place <br />unacceptable materials in the Recycling cart) and type of contaminants as collected. <br />Our drivers report contamination every day while on route. For single family homes and multi- <br />family buildings, collections is done with automated side -load trucks in which the driver uses a <br />mechanical arm on the truck to lift and tip each cart into a low mounted hopper in the side of the <br />truck. The truck then compacts the material prior to the next cart being tipped. Our trucks have <br />an onboard computer system that includes a hopper mounted camera. As material falls into the <br />truck the driver will monitor the contents for contamination. If contamination is seen (for <br />example, plastic bags) then the driver will make note in the computer system and then will leave <br />an education tag on the cart to educate the resident. If the driver sees that there is contamination <br />before tipping the cart, such as plastic bags sticking out, the driver will leave the cart behind with <br />an educational tag and make a note in the computer system. The onboard computer is connected <br />to the customer service software at the office so the hotline team can see the information in real <br />time should the resident call about any issue, like receiving a tag. Multi -family buildings that <br />require dumpsters will be collected with a rear -load style truck that will have the same type of <br />onboard computer system. <br />We calculate the contamination rate annually when we do the City's composition study. For the <br />composition study we hold all the recycling for one week and run it through our MRF separately <br />from other material. We weigh all the different categories that we sorted the recycling into, <br />including contamination. During this composition study we also take note of common <br />contamination issues to aid our future education regarding what can and cannot be put in a cart <br />for recycling. <br />Measurement of Participation <br />Describe you plan for measuring the participation rates of curbside Recycling customers <br />(e.g., percent of SUDS and opt -in establishments that set out Recyclables at least once over <br />a six week period of observation). <br />Eureka Recycling conducts and annual participation study in which both set -out and participation <br />rates are analyzed and documented. <br />• The set -out rate is the average number of households that set materials out for recycling <br />collection on a given day. Not every household sets out their recycling each week. If they <br />are out of town, forget, or simply don't have very much in their cart they may not have a <br />cart out for collection on their recycling day. The set -out rate is the average percentage of <br />households that set out material on a weekly basis during the study period. <br />• The participation rate is the number of households who set material out for recycling at <br />least once over the period of the study. The participation rate is a better indication of <br />overall recycling participation because it includes households that recycle at least once <br />over the course of six weeks, recognizing that home households may not set out recycling <br />every collection day. It more accurately indicates how many households are participating <br />in the recycling program overall, as opposed to the number of participants on a specific <br />day. <br />RFP for City of Roseville Recycling Services • D-10 <br />