Agenda - Environmental Policy Board - 11/21/2016

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Local Water Supply Plan Template July 8, 2016 Strategy to reduce total business, industry,agricultural demand Timeframe for completing work ❑ Investigate the reuse of reclaimed water(e.g.,stormwater, wastewater effluent, process wastewater, etc.) ❑ Reduce outdoor water use(e.g.,turf replacement/reduction, rain gardens, rain barrels,smart irrigation,outdoor water use meters,etc.) ❑ Train employees how to conserve water ❑ Implement a notification system to inform non-residential customers when water availability conditions change. ❑ Rainwater catchment systems intended to supply uses such as water closets, urinals,trap primers for floor drains and floor sinks,industrial processes,water features,vehicle washing facilities,cooling tower makeup,and similar uses shall be approved by the commissioner. Proposed plumbing code 4714.1702.1 http://www.dli.mn.gov/PDF/docket/4714rule.pdf ❑ Describe other plans: Objective 4:Achieve a Decreasing Trend in Total Per Capita Demand Include as Appendix 8 one graph showing total per capita water demand for each customer category (i.e., residential, institutional, commercial, industrial) from 2005-2014 and add the calculated/estimated linear trend for the next 10 years. Describe the trend for each customer category; explain the reason(s) for the trends, and where trends are increasing. Water demand has been decreasing over the last 10 years. Non-essential use is not declining as fast as Residential or C/I/I. Residential has shown the largest decrease which correlates to the rate structure change and requiring better topsoil for all new construction green areas. Objective 5: Reduce Peak Day Demand so that the Ratio of Average Maximum day to the Average Day is less than 2.6 Is the ratio of average 2005-2014 maximum day demand to average 2005-2014 average day demand reported in Table 2 more than 2.6? Yes ❑x No ❑ Calculate a ten year average (2005—2014) of the ratio of maximum day demand to average day demand: 2.74 The position of the DNR has been that a peak day/average day ratio that is above 2.6 for in summer indicates that the water being used for irrigation by the residents in a community is too large and that efforts should be made to reduce the peak day use by the community. It should be noted that by reducing the peak day use, communities can also reduce the amount of infrastructure that is required to meet the peak day use. This infrastructure includes new wells, new water towers which can be costly items. Objective 6: Implement a Conservation Water Rate Structure and/or a Uniform Rate Structure with a Water Conservation Program 42