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Water Utility 15 <br /> <br /> City of Lino Lakes, Minnesota – Water and Sewer Rate Study Update <br />Tier  1 <br />74.5% <br />Tier  2 <br />24.0% <br />Tier  3 <br />1.3% <br />Tier  4 <br />0.2% <br />Tier  5 <br />0.1% <br />Residential  Accounts  by  Tier <br />winter  average  (2010 ‐2011) <br />The total annual consumption by residen tial, non-residential and non-residential <br />irrigation for 2010 and 2011 is shown in the chart below. <br /> <br /> 2010 2011 <br />Residential 396,630,500 402,204,500 <br />Non-Residential 48,644,000 48,995,500 <br />Non-Residential <br />Irrigation 38,534,000 40,999,000 <br />Totals 483,808,500 492,199,000 <br /> <br />The average use per quarter by residentia l, non-residential and non-residential <br />irrigation is: <br /> <br /> 2011 – Q12011 – Q2 2011 – Q32011 – Q4 <br />Residential 16,32818,404 32,62433,077 <br />Non-Residential 104,63994,178 125,257143,080 <br />Non-Residential Irrigation 66,70098,083 243,061343,500 <br /> <br />Below are some additional highlights on past water use in the City: <br /> <br />Winter water use (Quarter 1, 2010 & 2011 data) <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> 98.5% of residential users used 40,0 00 gallons or less, falling into the <br />first two tiers of use. <br /> Only 61 customers (1.5% of users), used more than 40,000 gallons, <br />falling into the top three tiers. <br /> <br />Therefore, our assumption was that water consumption over 40,000 gallons in <br />the summer quarters is due primarily to non-residential irrigation. <br />