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Local Water Supply Plan Template —December 8, 2015 Table 25. Strategies and timeframe to reduce residential per capita demand Strategy to reduce residential per capita demand Timeframe for completing work 0 Enforce city ordinances/codes to encourage or require water efficient landscaping systems (e.g. those with soil moisture sensors or programmable watering areas) in new installations or system replacements On -going ❑ Revise city ordinance/codes to permit water reuse options, especially for non -potable purposes like irrigation, groundwater recharge, and industrial use. Check with plumbing authority to see if internal buildings reuse is permitted ❑ Revise ordinances to limit irrigation. Describe the restricted irrigation plan: ❑ Revise outdoor irrigation installations codes to require high efficiency systems (e.g. those with soil moisture sensors or programmable watering areas) in new installations or system replacements. 0 Make water system infrastructure improvements On -going ❑ Offer free or reduced cost water use audits) for residential customers. ❑ Implement a notification system to inform customers when water availability conditions change. 2 Provide rebates or incentives for installing water efficient appliances and/or fixtures indoors (e.g., low flow toilets, high efficiency dish washers and washing machines, showerhead and faucet aerators, water softeners, etc.) The City will consider applying for the Met Council's water efficiency grant when it next becomes available. Provide rebates or incentives to reduce outdoor water Annually use (e.g., turf replacement/reduction, rain gardens, rain barrels, smart irrigation, outdoor water use meters, etc.) ❑ Identify supplemental Water Resources 2 Conduct audience -appropriate water conservation education and outreach. On -going ❑ Describe other plans Objective 3: Achieve at least a 1.5% per year water reduction for Institutional, Industrial, Commercial, and Agricultural GPCD over the next 10 years or a 15% reduction in ten years. Complete Table 26 by checking which strategies you will used to continue reducing non-residential customer use demand and project a likely timeframe for completing each checked strategy (add rows for additional strategies). Where possible, substitute recycled water used in one process for reuse in another. (For example, spent rinse water can often be reused in a cooling tower.) Keep in mind the true cost of water is the amount on the water bill PLUS the expenses to heat, cool, treat, pump, and dispose of/discharge the water. Don't just calculate the initial investment. Many conservation retrofits that appear to be prohibitively expensive are actually very cost-effective when amortized over the life of the equipment. Often reducing water use also saves electrical and other utility costs. Note: as of 2015, water reuse, and is not allowed by the state plumbing code, M.R. 4715 (a variance is needed). However several state agencies are addressing this issue. 34