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In this instance, we need to also track rainfall totals because it can influence how much water � households use for lawn & garden use. As the graph indicates, over the past 8 years the average overall � usage/captured volume of water for single-family homes in the summertime ranged from 31,000 � gallons per quarter to 39,000. ,; �: Not surprisingly, the data suggests that customer behavior and consumption patterns are directly �� influenced by rainfall. Clearly, customers reduced their summertime consumption during heavier � rainfall periods. Changes in water usage fees didn't seem to be a factor on how much water was used. �� Once again, it appears that customers are making a conscious decision to maintain an established ��, standard — in this case a healthy looking lawn and garden. � � It should be noted that the 2015 consumption totals are skewed somewhat higher as discovered during �� the meter change-out program. Approximately 15% of all residential accounts had water usage that had � previously gone unrecorded but was added back to the customer totals during this period. 1 z. Rate Comparisons The graphs below depict a number of water and sewer rate comparisons with other peer communities. For this analysis, peer communities include 1 st ring suburbs that serve a population between 18,000 and 50,000, and which are not simply an extension of a larger entity's system. This group was selected to try and approximate cities with stand-alone systems with similar age of infrastructure which can have a significant influence on the cost of water and sewer services. It should be noted that broad comparisons only give a cursory look at how one community compares to another. One must also incorporate each City's individual philosophy in funding programs and services. Far example, Roseville does NOT utilize assessments to pay for water or sewer infrastructure replacements like many other cities do. Instead we fund infrastructure replacements 100% through the rates. As a result, Roseville's water and sewer rates are inherently higher when compared to a City that uses assessments to pay for improvements. Other influences on the rates include whether or not a community softens its water befare sending it on to customers, and the extent in which communities charge higher rates to non-residential customers. The following chart depicts the peer group comparison for combined wate� base rate and usage rate for a single-family home that uses 15,000 gallons per quarter. Page 8 of 14