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WSP_Cottage Grove_77-6349_12-21-16.doc City of Cottage Grove Local Water Supply Plan Formerly called Water Emergency & Water Conservation Plan Cottage Grove Local Water Supply Plan December 2016 1 Table of Contents PART 1. WATER SUPPLY SYSTEM DESCRIPTION AND EVALUATION.................................. 4 A. Analysis of Water Demand................................................................................................................ 4 B. Treatment and Storage Capacity ...................................................................................................... 6 C. Water Sources ................................................................................................................................... 7 D. Future Demand Projections – Key Metropolitan Council Benchmark .............................................. 8 E. Resource Sustainability ................................................................................................................... 10 F. Capital Improvement Plan (CIP) ...................................................................................................... 15 Part 2. Emergency Preparedness Procedures ........................................................................... 17 A. Federal Emergency Response Plan ................................................................................................. 17 B. Operational Contingency Plan ........................................................................................................ 17 C. Emergency Response Procedures ................................................................................................... 17 Progress since 2006 ................................................................................................................................ 23 A. Triggers for Allocation and Demand Reduction Actions ................................................................. 24 B. Conservation Objectives and Strategies – Key benchmark for DNR ............................................... 25 Objective 1: Reduce Unaccounted (Non-Revenue) Water loss to Less than 10% ............................ 25 Objective 2: Achieve Less than 75 Residential Gallons per Capita Demand (GPCD) ....................... 27 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. ......... 28 Objective 4: Achieve a Decreasing Trend in Total Per Capita Demand ............................................. 29 Objective 5: Reduce Peak Day Demand so that the Ratio of Average Maximum day to the Average Day is less than 2.6 ............................................................................................................................. 29 Objective 6: Implement a Conservation Water Rate Structure and/or a Uniform Rate Structure with a Water Conservation Program ............................................................................................................. 29 Objective 7: Additional strategies to Reduce Water Use and Support Wellhead Protection Planning ............................................................................................................................................................ 32 Objective 8: Tracking Success: How will you track or measure success through the next ten years? ............................................................................................................................................................ 32 A. Regulation ....................................................................................................................................... 33 B. Retrofitting Programs ..................................................................................................................... 34 C. Education and Information Programs ............................................................................................. 35 Cottage Grove Local Water Supply Plan December 2016 2 Part 4. ITEMS FOR METROPOLITAN AREA COMMUNITIES .................................................. 38 A. Water Demand Projections through 2040 ...................................................................................... 38 B. Potential Water Supply Issues ........................................................................................................ 38 C. Proposed Alternative Approaches to Meet Extended Water Demand Projections ....................... 38 D. Value-Added Water Supply Planning Efforts (Optional) ................................................................. 39 Appendix List APPENDIX 1: WELL RECORDS AND MAINTENANCE SUMMARIES APPENDIX 2: WATER LEVEL MONITORING PLAN APPENDIX 3: WATER LEVEL GRAPHS FOR EACH WATER SUPPLY WELL APPENDIX 4: CAPITAL IMPROVEMENT PLAN APPENDIX 5: EMERGENCY TELEPHONE LIST APPENDIX 6: COOPERATIVE AGREEMENTS FOR EMERGENCY SERVICES APPENDIX 7: MUNICIPAL CRITICAL WATER DEFICIENCY ORDINANCE APPENDIX 8: GRAPH SHOWING ANNUAL PER CAPITA WATER DEMAND FOR EACH CUSTOMER CATEGORY DURING THE LAST TEN-YEARS APPENDIX 9: WATER RATE STRUCTURE APPENDIX 10: ADOPTED OR PROPOSED REGULATIONS TO REDUCE DEMAND OR IMPROVE WATER EFFICIENCY APPENDIX 11: IMPLEMENTATION CHECKLIST Cottage Grove Local Water Supply Plan December 2016 3 Complete Table 1 with information about the public water supply system covered by this WSP. Table 1. General information regarding this WSP Requested Information Description DNR Water Appropriation Permit Number(s)1977-6349 Ownership Public Metropolitan Council Area Yes, Washington County Street Address 12800 Ravine Parkway South City, State, Zip Cottage Grove, MN, 55016 Contact Person Name Les Burshten Title Public Works Director Phone Number 651-458-2810 MDH Supplier Classification Municipal Cottage Grove Local Water Supply Plan December 2016 4 PART 1. WATER SUPPLY SYSTEM DESCRIPTION AND EVALUATION The first step in any water supply analysis is to assess the current status of demand and availability. Information summarized in Part 1 can be used to develop Emergency Preparedness Procedures (Part 2) and the Water Conservation Plan (Part 3). This data is also needed to track progress for water efficiency measures. A. Analysis of Water Demand Complete Table 2 showing the past 10 years of water demand data. • Some of this information may be in your Wellhead Protection Plan. • If you do not have this information, do your best, call your engineer for assistance or if necessary leave blank. If your customer categories are different than the ones listed in Table 2, please describe the differences below: Complete Table 3 by listing the top 10 water users by volume, from largest to smallest. For each user, include information about the category of use (residential, commercial, industrial, institutional, or wholesale), the amount of water used in gallons per year, the percent of total water delivered, and the status of water conservation measures. Table 2. Large volume users Customer Use Category (Residential, Industrial, Commercial, Institutional) Amount Used (Gallons per Year) Percent of Total Annual Water Delivered Implementing Water Conservation Measures? (Yes/No/Unknown) 1 HINTON HEIGHTS RESIDENTIAL 91,728,000 8.6% UNKNOWN 2 UP NORTH PLASTICS INDUSTRIAL 8,524,000 0.80% UNKNOWN 3 PARK SENIOR HIGH SCHOOL INSTITUTIONAL 7,475,000 0.70% UNKNOWN 4 MISTER CAR WASH COMMERCIAL 4,678,000 0.44% UNKNOWN 5 HOLIDAY STATION – HADLEY AVENUE COMMERCIAL 4,369,000 0.41% UNKNOWN 6 BP STATION – JAMAICA AVENUE COMMERCIAL 4,204,000 0.40% UNKNOWN 7 SOUTH WASHINGTON COUNTY SERVICE CENTER INSTITUTIONAL 3,421,000 0.32% UNKNOWN 8 MISSISSIPPI DUNES TOWNHOME ASSOCIATION RESIDENTIAL 3,128,000 0.29% UNKNOWN 9 HOLIDAY STATION – PINE ARBOR DR. COMMERCIAL 2,950,000 0.28% UNKNOWN 10 WALMART COMMERCIAL 2,920,000 0.27% UNKNOWN Co t t a g e G r o v e L o c a l W a t e r S u p p l y P l a n D e c e m b e r 2 0 1 6 5 Ta b l e 3 . H i s t o r i c w a t e r d e m a n d Ye a r Po p . Se r v e d To t a l Co n n e c t i o ns Re s i d e n t i a l Wa t e r De l i v e r e d (M G ) C/ I / I Wa t e r De l i v e r e d (M G ) Wa t e r us e d f o r No n - es s e n t i a l Wh o l e s a l e De l i v e r i e s (M G ) To t a l W a t e r De l i v e r e d (M G ) To t a l W a t e r Pu m p e d ( M G ) Wa t e r Su p p l i e r Se r v i c e s Pe r c e n t U n m e t e r e d / Un a c c o u n t e d Av e r a g e D a i l y De m a n d (M G D ) Ma x . D a i l y De m a n d (M G D ) Da t e o f M a x . De m a n d Residential Per Capita Demand (GPCD) Total per capita Demand (GPCD) 20 0 5 3 4 , 3 1 5 9 4 7 2 9 1 7 2 8 0 1 , 1 9 7 1 , 3 1 3 8 . 8 % 3 . 6 0 1 3 . 4 0 7 / 1 6 / 0 5 7 3 . 2 1 0 4 . 8 20 0 6 3 4 , 3 8 3 1 0 , 0 5 6 1 , 0 0 0 3 7 1 1 , 3 7 1 1 , 5 1 4 9 . 5 % 4 . 1 5 1 1 . 5 0 7 / 6 / 0 6 7 9 . 7 1 2 0 . 6 20 0 7 3 4 , 4 0 8 1 0 , 2 6 0 1 , 0 8 4 4 2 6 1 , 5 1 0 1 , 5 7 1 3 . 9 % 4 . 3 0 1 2 . 5 6 7 / 6 / 0 7 8 6 . 3 1 2 5 . 1 20 0 8 3 4 , 5 1 0 1 0 , 2 9 8 1 , 1 0 1 2 7 5 1 , 3 7 6 1 , 3 7 8 0 . 2 % 3 . 7 7 1 0 . 9 6 7 / 6 / 0 8 8 7 . 4 1 0 9 . 4 20 0 9 3 4 , 7 9 2 1 0 , 3 8 1 1 , 0 5 7 2 2 1 1 , 2 7 8 1 , 3 5 5 5 . 7 % 3 . 7 1 1 0 . 3 4 6 / 3 / 0 9 8 3 . 2 1 0 6 . 7 20 1 0 3 4 , 9 3 5 1 0 , 4 1 8 9 1 1 1 8 0 1 , 0 9 1 1 , 2 1 7 1 0 . 3 % 3 . 3 4 8 . 2 5 8 / 2 9 / 1 0 7 1 . 4 9 5 . 4 20 1 1 3 5 , 1 0 5 1 0 , 4 7 4 9 4 7 1 8 0 1 , 1 2 7 1 , 2 7 5 1 1 . 6 % 3 . 4 9 8 . 4 7 9 / 1 1 / 1 1 7 3 . 9 9 9 . 5 20 1 2 3 5 , 1 2 0 1 0 , 4 7 2 1 , 1 5 5 1 9 7 1 , 3 5 2 1 , 5 0 0 9 . 9 % 4 . 1 1 1 1 . 2 9 7 / 1 2 / 1 2 9 0 . 1 1 1 7 . 0 20 1 3 3 5 , 3 0 0 1 0 , 5 5 3 9 8 3 1 9 4 1 , 1 7 7 1 , 3 2 3 1 1 . 1 % 3 . 6 3 1 0 . 1 8 8 / 2 6 / 1 3 7 6 . 3 1 0 2 . 7 20 1 4 3 5 , 1 5 0 1 0 , 4 9 1 8 9 1 1 9 0 1 , 0 8 1 1 , 2 0 1 9 . 9 % 2 . 7 6 9 . 6 6 8 / 1 5 / 1 4 6 9 . 4 9 3 . 6 20 1 5 3 5 , 5 0 0 1 0 , 7 6 9 8 7 7 1 8 7 1 , 0 6 4 1 , 1 8 7 1 0 . 4 % 3 . 2 6 7 . 1 5 8 / 0 2 / 1 5 6 7 . 7 9 1 . 6 Av g . 20 1 0 - 20 1 5 35 , 1 8 5 1 0 , 5 3 0 9 6 1 1 8 8 1 , 1 4 9 1 , 2 8 4 1 0 . 5 % 3 . 4 3 9 . 1 7 7 4 . 8 1 0 0 . 0 MG – Mi l l i o n G a l l o n s M G D – Mi l l i o n G a l l o n s p e r D a y G P C D – G a l l o n s p e r C a p i t a p e r D a y Cottage Grove Local Water Supply Plan December 2016 6 B. Treatment and Storage Capacity Complete Table 4 with a description of where water is treated, the year treatment facilities were constructed, water treatment capacity, the treatment methods (i.e. chemical addition, reverse osmosis, coagulation, sedimentation, etc.) and treatment types used (i.e. fluoridation, softening, chlorination, Fe/MN removal, coagulation, etc.). Also describe the annual amount and method of disposal of treatment residuals. Add rows to the table as needed. Table 4. Water treatment capacity and treatment processes Treatment Site ID (Plant Name or Well ID) Year Construct ed Treatment Capacity (GPM) Treatment Method Treatment Type Annual Amount of Residuals Disposal Process for Residuals Reclaim Filter Backwash Water? Well No. 1 208808 1958 600 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 2 208809 1958 600 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 3 208807 1960 800 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 4 208805 1962 1000 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 5 208806 1967 1000 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 6 201238 1973 1000 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 7 201227 1974 1000 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 8 110464 1977 1500 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 9 165602 1979 1500 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 10 191904 1984 1800 Chemical Addition Chlorination Fluoridation NA NA NA Well No. 11 655944 2004 1500 Chemical Addition Chlorination Fluoridation NA NA NA Total NA 12,300 NA NA NA NA NA Complete Table 5 with information about storage structures. Describe the type (i.e. elevated, ground, etc.), the storage capacity of each type of structure, the year each structure was constructed, and the primary material for each structure. Add rows to the table as needed. Table 5. Storage capacity, as of the end of the last calendar year Structure Name Type of Storage Structure Year Constructed Primary Material Storage Capacity (Gallons) Thompson Grove Elevated storage 1958 Steel 150,000 Pine Hill School Elevated Storage 1985 Steel 500,000 Cottage Grove Local Water Supply Plan December 2016 7 Structure Name Type of Storage Structure Year Constructed Primary Material Storage Capacity (Gallons) Highlands Elevated Storage 1971 Steel 1,500,000 West Draw Elevated Storage 2004 Steel 1,500,000 1.0 MG Ground Ground Storage 1962 Steel 1,000,000 3.0 MG Ground Ground Storage 1980 Steel 3,000,000 TOTAL – 6 Tanks NA NA NA 7,150,000 Gallons Treatment and storage capacity versus demand It is recommended that total storage equal or exceed the average daily demand. Discuss the difference between current storage and treatment capacity versus the water supplier’s projected average water demand over the next 10 years (see Table 7 for projected water demand): The projected 2025 average daily demand is approximately 4.0 MGD and the maximum day demand is 12.0 MGD. Cottage Grove’s existing firm well capacity of 13.0 MGD (with 2 wells out of service) exceeds the projected 2025 maximum day demand. However, an additional well within the High Pressure Zone would provide additional operational flexibility and reduced pumping costs. The existing storage capacity of greater than 7.0 MG is greater than the average day demand of 4.0 MGD. However, additional storage in the Low Pressure Zone is being considered to support growth in the Industrial Park. C. Water Sources Complete Table 6 by listing all types of water sources that supply water to the system, including groundwater, surface water, interconnections with other water suppliers, or others. Provide the name of each source (aquifer name, river or lake name, name of interconnecting water supplier) and the Minnesota unique well number or intake ID, as appropriate. Report the year the source was installed or established and the current capacity. Provide information about the depth of all wells. Describe the status of the source (active, inactive, emergency only, retail/wholesale interconnection) and if the source facilities have a dedicated emergency power source. Add rows to the table as needed for each installation. Include copies of well records and maintenance summary for each well that has occurred since your last approved plan in Appendix 1. Table 6. Water sources and status Resource Type (Groundwater, Surface water, Interconnection) Resource Name MN Unique Well # or Intake ID Year Installed Capacity (Gallons per Minute) Well Depth (Feet) Status of Normal and Emergency Operations Does this Source have a Dedicated Emergency Power Source? Groundwater Jordan/Prairie Du Chien Well No. 1 208808 1958 600 352 Active Yes Groundwater Jordan/Prairie Du Chien Well No. 2 208809 1958 600 350 Active No Groundwater Jordan/Prairie Du Chien Well No. 3 208807 1960 800 388 Active Yes Groundwater Jordan/Prairie Du Chien Well No. 4 208805 1962 1,000 418 Active No Cottage Grove Local Water Supply Plan December 2016 8 Resource Type (Groundwater, Surface water, Interconnection) Resource Name MN Unique Well # or Intake ID Year Installed Capacity (Gallons per Minute) Well Depth (Feet) Status of Normal and Emergency Operations Does this Source have a Dedicated Emergency Power Source? Groundwater Jordan/Prairie Du Chien Well No. 5 208806 1967 1,000 358 Active No Groundwater Jordan/Prairie Du Chien Well No. 6 201238 1973 1,000 427 Active No Groundwater Jordan/Prairie Du Chien Well No. 7 201227 1974 1,000 370 Active No Groundwater Jordan/Prairie Du Chien Well No. 8 110464 1977 1,500 396 Active Yes Groundwater Jordan/Prairie Du Chien Well No. 9 165602 1979 1,500 380 Active Yes Groundwater Jordan/Prairie Du Chien Well No. 10 191904 1984 1,800 284 Active Yes Groundwater Jordan/Prairie Du Chien Well No. 11 655944 2004 1,500 427 Active Yes Interconnection St. Paul Park - - ~500 - Emergency NA Limits on Emergency Interconnections Discuss any limitations on the use of the water sources (e.g. not to be operated simultaneously, limitations due to blending, aquifer recovery issues etc.) and the use of interconnections, including capacity limits or timing constraints (i.e. only 200 gallons per minute are available from the City of Prior Lake, and it is estimated to take 6 hours to establish the emergency connection). If there are no limitations, list none. There is a 6 inch pipe connection with the City of St. Paul Park at 85th Street. Cottage Grove and St. Paul Park need to open a closed valve for the emergency interconnection to be active. Proposed connections with the City of Woodbury are anticipated once development occurs closer to the City limits. D. Future Demand Projections – Key Metropolitan Council Benchmark Water Use Trends Use the data in Table 2 to describe trends in 1) population served; 2) total per capita water demand; 3) average daily demand; 4) maximum daily demand. Then explain the causes for upward or downward trends. For example, over the ten years has the average daily demand trended up or down? Why is this occurring? Population growth in Cottage Grove continues to slowly grow. Population growth since 2005 is less than 1% annually. Total per capita water demand is decreasing; from over 115 gpcd in 2006 – 2009 to roughly 93 gpcd in 2014 – 2015. The total per capita water demand average was approximately 100 gpcd between 2010 and 2015. Average day water demand has been relatively flat over the last 10 years as per capita water usage has dropped as population has slowly increased. However, the maximum day water demands continue to decrease; from a high of 13.4 MGD in 2005 to less than 10.0 MGD in 2010, 2011, 2014, and 2015. Conservation rates and education have decreased summer irrigation demands. Cottage Grove Local Water Supply Plan December 2016 9 Use the water use trend information discussed above to complete Table 7 with projected annual demand for the next ten years. Communities in the seven-county Twin Cities metropolitan area must also include projections for 2030 and 2040 as part of their local comprehensive planning. Projected demand should be consistent with trends evident in the historical data in Table 2, as discussed above. Projected demand should also reflect state demographer population projections and/or other planning projections. Table 7. Projected annual water demand Year Projected Total Population Projected Population Served Projected Total Per Capita Water Demand (GPCD) Projected Average Daily Demand (MGD) Projected Maximum Daily Demand (MGD) 2016 36,157 36,080 100 3.6 10.8 2017 36,718 36,660 100 3.7 11.0 2018 37,278 37,240 100 3.7 11.2 2019 37,839 37,820 100 3.8 11.3 2020 38,400 38,400 100 3.8 11.5 2021 38,780 38,780 100 3.9 11.6 2022 39,160 39,160 100 3.9 11.7 2023 39,540 39,540 100 4.0 11.9 2024 39,920 39,920 100 4.0 12.0 2025 40,300 40,300 100 4.0 12.1 2030 42,200 42,200 100 4.2 12.7 2040 47,000 47,000 100 4.7 14.1 GPCD – Gallons per Capita per Day MGD – Million Gallons per Day Projection Method Describe the method used to project water demand, including assumptions for population and business growth and how water conservation and efficiency programs affect projected water demand: Population data for 2020, 2030, and 2040 was provided by Metropolitan Council and the remaining years were calculated based on linear population growth. The Metropolitan Council Master Water Supply Plan states all City residents to be served by municipal water by 2020, which is not consistent with City Comprehensive Planning. However, this approach will provide conservative water demands and is used for this Plan. The total per capita water demand average was approximately 100 gpcd between 2010 and 2015. This per capita is projected forward through 2040 as population growth in Cottage Grove increases by one third. Cottage Grove has experienced a drop in per capita water use since the previous water supply plan. The projected maximum day demand was calculated based on a maximum to average day demand ratio of 3.0. The last several years the maximum day demand ratio has been lower, but for planning purposes a conservative approach is preferred. A maximum day demand factor of 3.0 is consistent with previous planning efforts in Cottage Grove and has only been exceeded in 2005 and 2014. Cottage Grove Local Water Supply Plan December 2016 10 E. Resource Sustainability Monitoring – Key DNR Benchmark Complete Table 8 by inserting information about source water quality monitoring efforts. The list should include all production wells, observation wells, and source water intakes or reservoirs. Additional information on groundwater level monitoring program at: http://www.dnr.state.mn.us/waters/groundwater_section/obwell/index.html Add rows to the table as needed. Table 8. Information about source water quality monitoring MN Unique Well # or Surface Water ID Type of monitoring point Monitoring program Frequency of monitoring Monitoring Method Well No. 1 208808 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 2 208809 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 3 208807 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 4 208805 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 5 208806 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 6 201238 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Cottage Grove Local Water Supply Plan December 2016 11 MN Unique Well # or Surface Water ID Type of monitoring point Monitoring program Frequency of monitoring Monitoring Method Well No. 7 201227 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 8 110464 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 9 165602 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 10 191904 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Well No. 11 655944 production well  observation well  source water intake  source water reservoir Routine MDH sampling Routine water utility sampling  other continuous hourly daily  monthly quarterly annually SCADA  grab sampling  steel tape  stream gauge Water Level Data A water level monitoring plan that includes monitoring locations and a schedule for water level readings must be submitted as Appendix 2. If one does not already exist, it needs to be prepared and submitted with the WSP. Ideally, all production and observation wells are monitored at least monthly. Complete Table 9 to summarize water level data for each well being monitored. Provide the name of the aquifer and a brief description of how much water levels vary over the season (the difference between the highest and lowest water levels measured during the year) and the long-term trends for each well. If water levels are not measured and recorded on a routine basis, then provide the static water level when each well was constructed and the most recent water level measured during the same season the well was constructed. Also include all water level data taken during any well and pump maintenance. Add rows to the table as needed. Provide water level data graphs for each well in Appendix 3 for the life of the well, or for as many years as water levels have been measured. See DNR website for Date Time Water Level. Cottage Grove Local Water Supply Plan December 2016 12 Table 9. Water level data Unique Well Number or Well ID Aquifer Name Seasonal Variation (Feet) Long-term Trend in water level data Water level measured during well/pumping maintenance Well No. 1 208808 Jordan/Prairie Du Chien ~10 ft Falling  Stable Rising 07/01/14 –143 ft 07/01/15 – 139 ft 07/01/16 – 125 ft Well No. 2 208809 Jordan/Prairie Du Chien ~5 ft Falling  Stable Rising 07/01/14 –66 ft 07/01/15 – 84 ft 07/01/16 – 82 ft Well No. 3 208807 Jordan/Prairie Du Chien Unknown Falling  Stable Rising 09/2000 –113 ft 09/2003 – 146 ft Well No. 4 208805 Jordan/Prairie Du Chien ~10 ft Falling  Stable Rising 07/01/14 –126 ft 07/01/15 – 126 ft 07/01/16 – 128 ft Well No. 5 208806 Jordan/Prairie Du Chien ~10 ft Falling  Stable Rising 07/01/14 –71 ft 07/01/15 – 71 ft 07/01/16 – 71 ft Well No. 6 201238 Jordan/Prairie Du Chien Unknown Falling  Stable Rising 09/2003 –190 ft Well No. 7 201227 Jordan/Prairie Du Chien ~10 ft Falling  Stable Rising 07/01/14 –80 ft 07/01/15 – 82 ft 07/01/16 – 84 ft Well No. 8 110464 Jordan/Prairie Du Chien ~30 ft Falling  Stable Rising 07/01/14 –145 ft 07/01/15 – 145 ft 07/01/16 – 139 ft Well No. 9 165602 Jordan/Prairie Du Chien ~10 ft Falling  Stable Rising 09/2000 –107 ft 06/2002 – 105 ft 07/2013 – 106 ft Well No. 10 191904 Jordan/Prairie Du Chien ~10 ft Falling  Stable Rising 07/01/14 –170 ft 07/01/15 – 170 ft 07/01/16 – 170 ft Well No. 11 655944 Jordan/Prairie Du Chien ~10 ft Falling  Stable Rising 07/01/14 –88 ft 07/01/15 – 104 ft 07/01/16 – 114 ft Potential Water Supply Issues & Natural Resource Impacts – Key DNR & Metropolitan Council Benchmark Complete Table 10 by listing the types of natural resources that are or could be impacted by permitted water withdrawals. If known, provide the name of specific resources that may be impacted. Identify what the greatest risks to the resource are and how the risks are being assessed. Identify any resource protection thresholds – formal or informal – that have been established to identify when actions should be taken to mitigate impacts. Provide information about the potential mitigation actions that may be taken, if a resource protection threshold is crossed. Add additional rows to the table as needed. See the glossary at the end of the template for definitions. Cottage Grove Local Water Supply Plan December 2016 13 Some of this baseline data should have been in your earlier water supply plans or county comprehensive water plans. When filling out this table, think of what are the water supply risks, identify the resources, determine the threshold and then determine what your community will do to mitigate the impacts. Your DNR area hydrologist is available to assist with this table. For communities in the seven-county Twin Cities metropolitan area, the Master Water Supply Plan Appendix 1 (Water Supply Profiles, provides information about potential water supply issues and natural resource impacts for your community. Table 10. Natural resource impacts Resource Type Resource Name Risk Risk Assessed Through Describe Resource Protection Threshold* Mitigation Measure or Management Plan Describe How Changes to Thresholds are Monitored  River or stream  Flow/water level decline  Degrading water quality trends and/or MCLs exceeded  Impacts on endangered, threatened, or special concern species habitat or other natural resource impacts Other: _____ GIS analysis  Modeling  Mapping  Monitoring  Aquifer testing  Other: ___  Revise permit  Change groundwater pumping  Increase conservation  Other  Lake  Flow/water level decline  Degrading water quality trends and/or MCLs exceeded  Impacts on endangered, threatened, or special concern species habitat or other natural resource impacts Other: _____ GIS analysis  GIS analysis  Modeling  Mapping  Monitoring  Aquifer testing  Other: ___  Revise permit  Change groundwater pumping  Increase conservation  Other  Wetland  Flow/water level decline  Degrading water quality trends and/or MCLs exceeded  Impacts on endangered, threatened, or special concern species habitat or other natural resource impacts Other: _____ GIS analysis  Modeling  Mapping  Monitoring  Aquifer testing  Other: ___  Revise permit  Change groundwater pumping  Increase conservation  Other Cottage Grove Local Water Supply Plan December 2016 14 Resource Type Resource Name Risk Risk Assessed Through Describe Resource Protection Threshold* Mitigation Measure or Management Plan Describe How Changes to Thresholds are Monitored  Trout Stream  Flow/water level decline  Degrading water quality trends and/or MCLs exceeded  Impacts on endangered, threatened, or special concern species habitat or other natural resource impacts Other: _____ GIS analysis  Modeling  Mapping  Monitoring  Aquifer testing  Other: ___  Revise permit  Change groundwater pumping  Increase conservation  Other  Aquifer Jordan Prairie du Chien Aquifers  Flow/water level decline  Degrading water quality trends and/or MCLs exceeded  Impacts on endangered, threatened, or special concern species habitat or other natural resource impacts Other: _____ GIS analysis  Modeling  Mapping  Monitoring  Aquifer testing  Other: ___ Established threshold guideline is water level drop no more than half of the available head. Law does not allow aquifer to be pumped so that a confined aquifer becomes unconfined.  Revise permit  Change groundwater pumping  Increase conservation  Other DNR has oversight on thresholds (and permitting) for pumping from regional bedrock aquifers. Water level monitoring by City. Met. Council regional modeling.  Endangered, threatened, or special concern species habitat, other Natural resource impacts * Examples of thresholds: a lower limit on acceptable flow in a river or stream; water quality outside of an accepted range; a lower limit on acceptable aquifer level decline at one or more monitoring wells; withdrawals that exceed some percent of the total amount available from a source; or a lower limit on acceptable changes to a protected habitat. Cottage Grove Local Water Supply Plan December 2016 15 Wellhead Protection (WHP) and Source Water Protection (SWP) Plans Complete Table 11 to provide status information about WHP and SWP plans. The emergency procedures in this plan are intended to comply with the contingency plan provisions required in the Minnesota Department of Health’s (MDH) Wellhead Protection (WHP) Plan and Surface Water Protection (SWP) Plan. Table 11. Status of Wellhead Protection and Source Water Protection Plans Plan Type Status Date Adopted Date for Update WHP  In Process Completed  Not Applicable Original Plan in 2005 DWSMA approved August 14, 2015. Part 2 submitted to MDH in December 2016. SWP  In Process  Completed  Not Applicable N/A N/A WHP – Wellhead Protection Plan SWP – Source Water Protection Plan F. Capital Improvement Plan (CIP) Please note that any wells that received approval under a ten-year permit, but that were not built, are now expired and must submit a water appropriations permit. Adequacy of Water Supply System Complete Table 12 with information about the adequacy of wells and/or intakes, storage facilities, treatment facilities, and distribution systems to sustain current and projected demands. List planned capital improvements for any system components, in chronological order. Communities in the seven- county Twin Cities metropolitan area should also include information about plans through 2040. The assessment can be the general status by category; it is not necessary to identify every single well, storage facility, treatment facility, lift station, and mile of pipe. Please attach your latest Capital Improvement Plan as Appendix 4. Table 12. Adequacy of Water Supply System System Component Planned action Anticipated Construction Year Notes Wells/Intakes  No action planned - adequate  Repair/replacement  Expansion/addition 2018/19 Construction of Well #12 Water Storage Facilities  No action planned - adequate  Repair/replacement  Expansion/addition 2020/21 Future Low Pressure Zone tank to support Industrial Park growth. Water Treatment Facilities  No action planned - adequate  Repair/replacement  Expansion/addition Distribution Systems (pipes, valves, etc.)  No action planned - adequate  Repair/replacement  Expansion/addition Ongoing Continued pipe replacement program and preventative maintenance Cottage Grove Local Water Supply Plan December 2016 16 System Component Planned action Anticipated Construction Year Notes Pressure Zones  No action planned - adequate  Repair/replacement  Expansion/addition Future Growth to the SW will require a new pressure zone served by PRVs. Other:  No action planned - adequate  Repair/replacement  Expansion/addition 2017/2018 Water Meter Replacement Project Proposed Future Water Sources Complete Table 13 to identify new water source installation planned over the next ten years. Add rows to the table as needed. Table 13. Proposed future installations/sources Source Installation Location (approximate) Resource Name Proposed Pumping Capacity (gpm) Planned Installation Year Planned Partnerships Groundwater NE Cottage Grove Prairie Du Chien/Jordan 1,500 2019 Groundwater Business Park Prairie Du Chien/Jordan 1,500 When/If future demands justify it. Surface Water N/A Interconnection Woodbury N/A 2025 or later City of Woodbury Interconnection Newport N/A 2025 or later City of Newport Water Source Alternatives - Key Metropolitan Council Benchmark Do you anticipate the need for alternative water sources in the next 10 years?  Yes  No For metro communities, will you need alternative water sources by the year 2040? Yes  No If you answered yes for either question, then complete table 14. If no, insert NA. Complete Table 14 by checking the box next to alternative approaches that your community is considering, including approximate locations (if known), the estimated amount of future demand that could be met through the approach, the estimated timeframe to implement the approach, potential partnerships, and the major benefits and challenges of the approach. Add rows to the table as needed. For communities in the seven-county Twin Cities metropolitan area, these alternatives should include approaches the community is considering to meet projected 2040 water demand. Table 14. Alternative water sources Alternative Source Considered Source and/or Installation Location (approximate) Estimated Amount of Future Demand (%) Timeframe to Implement (YYYY) Potential Partners  Groundwater  Surface Water  Interconnection to another supplier Met. Council’s Water Supply Feasibility Assessment (10/2016) for Washington County cities evaluated potential water supply sources including treatment of contaminated groundwater, surface water treatment, connection to other systems, and new wells. Unknown Unknown Washington Co. Met Council DNR Cottage Grove Local Water Supply Plan December 2016 17 Part 2. Emergency Preparedness Procedures The emergency preparedness procedures outlined in this plan are intended to comply with the contingency plan provisions required by MDH in the WHP and SWP. Water emergencies can occur as a result of vandalism, sabotage, accidental contamination, mechanical problems, power failings, drought, flooding, and other natural disasters. The purpose of emergency planning is to develop emergency response procedures and to identify actions needed to improve emergency preparedness. In the case of a municipality, these procedures should be in support of, and part of, an all-hazard emergency operations plan. Municipalities that already have written procedures dealing with water emergencies should review the following information and update existing procedures to address these water supply protection measures. A. Federal Emergency Response Plan Section 1433(b) of the Safe Drinking Water Act, (Public Law 107-188, Title IV- Drinking Water Security and Safety) requires community water suppliers serving over 3,300 people to prepare an Emergency Response Plan. Do you have a federal emergency response plan?  Yes  No If yes, what was the date it was certified? ____June 14, 2004___ Complete Table 15 by inserting the noted information regarding your completed Federal Emergency Response Plan. Table 15. Emergency Preparedness Plan contact information Emergency Response Plan Role Contact Person Contact Phone Number Contact Email Emergency Response Lead HARRY TAYLOR 651-458-2853 HTAYLOR@COTTAGE-GROVE.ORG Alternate Emergency Response Lead RICK ALT 651-458-2842 RALT@COTTAGE-GROVE.ORG B. Operational Contingency Plan All utilities should have a written operational contingency plan that describes measures to be taken for water supply mainline breaks and other common system failures as well as routine maintenance. Do you have a written operational contingency plan?  Yes  No At a minimum, a water supplier should prepare and maintain an emergency contact list of contractors and suppliers. C. Emergency Response Procedures Water suppliers must meet the requirements of MN Rules 4720.5280 . Accordingly, the Minnesota Department of Natural Resources (DNR) requires public water suppliers serving more than 1,000 people to submit Emergency and Conservation Plans. Water emergency and conservation plans that have been approved by the DNR, under provisions of Minnesota Statute 186 and Minnesota Rules, part 6115.0770, will be considered equivalent to an approved WHP contingency plan. Cottage Grove Local Water Supply Plan December 2016 18 Emergency Telephone List Prepare and attach a list of emergency contacts, including the MN Duty Officer (1-800-422-0798), as Appendix 5. A template is available at www.mndnr.gov/watersupplyplans The list should include key utility and community personnel, contacts in adjacent water suppliers, and appropriate local, state and federal emergency contacts. Please be sure to verify and update the contacts on the emergency telephone list and date it. Thereafter, update on a regular basis (once a year is recommended). In the case of a municipality, this information should be contained in a notification and warning standard operating procedure maintained by the Emergency Manager for that community. Responsibilities and services for each contact should be defined. Current Water Sources and Service Area Quick access to concise and detailed information on water sources, water treatment, and the distribution system may be needed in an emergency. System operation and maintenance records should be maintained in secured central and back-up locations so that the records are accessible for emergency purposes. A detailed map of the system showing the treatment plants, water sources, storage facilities, supply lines, interconnections, and other information that would be useful in an emergency should also be readily available. It is critical that public water supplier representatives and emergency response personnel communicate about the response procedures and be able to easily obtain this kind of information both in electronic and hard copy formats (in case of a power outage). Do records and maps exist?  Yes  No Can staff access records and maps from a central secured location in an emergency?  Yes  No Does the appropriate staff know where the materials are located?  Yes  No Procedure for Augmenting Water Supplies Complete Tables 16 – 17 by listing all available sources of water that can be used to augment or replace existing sources in an emergency. Add rows to the tables as needed. In the case of a municipality, this information should be contained in a notification and warning standard operating procedure maintained by the warning point for that community. Municipalities are encouraged to execute cooperative agreements for potential emergency water services and copies should be included in Appendix 6. Outstate Communities may consider using nearby high capacity wells (industry, golf course) as emergency water sources. WSP should include information on any physical or chemical problems that may limit interconnections to other sources of water. Approvals from the MDH are required for interconnections or the reuse of water. Table 16. Interconnections with other water supply systems to supply water in an emergency Other Water Supply System Owner Capacity (GPM & MGD) Note Any Limitations On Use List of services, equipment, supplies available to respond ST. PAUL PARK 500 GPM LIMITED BY LOCAL 6” PIPES NONE GPM – Gallons per minute MGD – million gallons per day Cottage Grove Local Water Supply Plan December 2016 19 Table 17. Utilizing surface water as an alternative source Surface Water Source Name Capacity (GPM) Capacity (MGD) Treatment Needs Note Any Limitations On Use NONE If not covered above, describe additional emergency measures for providing water (obtaining bottled water, or steps to obtain National Guard services, etc.) Allocation and Demand Reduction Procedures Complete Table 18 by adding information about how decisions will be made to allocate water and reduce demand during an emergency. Provide information for each customer category, including its priority ranking, average day demand, and demand reduction potential for each customer category. Modify the customer categories as needed, and add additional lines if necessary. Water use categories should be prioritized in a way that is consistent with Minnesota Statutes 103G.261 (#1 is highest priority) as follows: 1. Water use for human needs such as cooking, cleaning, drinking, washing and waste disposal; use for on-farm livestock watering; and use for power production that meets contingency requirements. 2. Water use involving consumption of less than 10,000 gallons per day (usually from private wells or surface water intakes) 3. Water use for agricultural irrigation and processing of agricultural products involving consumption of more than 10,000 gallons per day (usually from private high-capacity wells or surface water intakes) 4. Water use for power production above the use provided for in the contingency plan. 5. All other water use involving consumption of more than 10,000 gallons per day. 6. Nonessential uses – car washes, golf courses, etc. Water used for human needs at hospitals, nursing homes and similar types of facilities should be designated as a high priority to be maintained in an emergency. Lower priority uses will need to address water used for human needs at other types of facilities such as hotels, office buildings, and manufacturing plants. The volume of water and other types of water uses at these facilities must be carefully considered. After reviewing the data, common sense should dictate local allocation priorities to protect domestic requirements over certain types of economic needs. Water use for lawn sprinkling, vehicle washing, golf courses, and recreation are legislatively considered non-essential. Cottage Grove Local Water Supply Plan December 2016 20 Table 18. Water use priorities Customer Category Allocation Priority Average Daily Demand (GDP) Short-Term Emergency Demand Reduction Potential (GPD) Residential 1 2,600,000 1,040,000 Commercial/Industrial/ Institutional 2 500,000 210,000 Non-Essential 6 50,000 50,000 TOTAL NA 3,150,000 1,300,000 GPD – Gallons per Day Tip: Calculating Emergency Demand Reduction Potential The emergency demand reduction potential for all uses will typically equal the difference between maximum use (summer demand) and base use (winter demand). In extreme emergency situations, lower priority water uses must be restricted or eliminated to protect priority domestic water requirements. Emergency demand reduction potential should be based on average day demands for customer categories within each priority class. Use the tables in Part 3 on water conservation to help you determine strategies. Complete Table 19 by selecting the triggers and actions during water supply disruption conditions. Table 19. Emergency demand reduction conditions, triggers and actions (Select all that may apply and describe) Emergency Triggers Short-term Actions Long-term Actions  Contamination  Loss of production  Infrastructure failure  Executive order by Governor  Other: _________  Supply augmentation through ____  Adopt (if not already) and enforce a critical water deficiency ordinance to penalize lawn watering, vehicle washing, golf course and park irrigation & other nonessential uses.  Cut Non-essential water uses.  Meet with large water users to discuss their contingency plan.  Supply augmentation through ____  Adopt (if not already) and enforce a critical water deficiency ordinance to penalize lawn watering, vehicle washing, golf course and park irrigation & other nonessential uses.  Cut Non-essential water uses.  Meet with large water users to discuss their contingency plan. Cottage Grove Local Water Supply Plan December 2016 21 Notification Procedures Complete Table 20 by selecting trigger for informing customers regarding conservation requests, water use restrictions, and suspensions; notification frequencies; and partners that may assist in the notification process. Add rows to the table as needed. Table 20. Plan to inform customers regarding conservation requests, water use restrictions, and suspensions Notification Trigger(s) Methods (select all that apply)Update Frequency Partners  Short-term demand reduction declared (< 1 year)  Website  Email list serve  Social media (e.g. Twitter, Facebook)  Direct customer mailing,  Press release (TV, radio, newspaper),  Meeting with large water users (> 10% of total city use)  Other: Washington Co. Code Red Daily Weekly Monthly Annually • MDH • Washington County • St. Paul Park • Mutual Aid  Long-term Ongoing demand reduction declared  Website  Email list serve  Social media (e.g. Twitter, Facebook)  Direct customer mailing,  Press release (TV, radio, newspaper),  Meeting with large water users (> 10% of total city use)  Other: Washington Co. Code Red Daily Weekly Monthly Annually • MDH • Washington County • Metropolitan Council • DNR • Woodbury • St. Paul Water Utility Governor’s Critical water deficiency declared  Website  Email list serve  Social media (e.g. Twitter, Facebook)  Direct customer mailing,  Press release (TV, radio, newspaper),  Meeting with large water users (> 10% of total city use)  Other: Washington Co. Code Red Daily Weekly Monthly Annually • Governor’s Office • MDH • Washington County • Metropolitan Council • DNR Cottage Grove Local Water Supply Plan December 2016 22 Enforcement Prior to a water emergency, municipal water suppliers must adopt regulations that restrict water use and outline the enforcement response plan. The enforcement response plan must outline how conditions will be monitored to know when enforcement actions are triggered, what enforcement tools will be used, who will be responsible for enforcement, and what timelines for corrective actions will be expected. Affected operations, communications, and enforcement staff must then be trained to rapidly implement those provisions during emergency conditions. Important Note: Disregard of critical water deficiency orders, even though total appropriation remains less than permitted, is adequate grounds for immediate modification of a public water supply authority’s water use permit (2013 MN Statutes 103G.291) Does the city have a critical water deficiency restriction/official control in place that includes provisions to restrict water use and enforce the restrictions? (This restriction may be an ordinance, rule, regulation, policy under a council directive, or other official control)  Yes  No If yes, attach the official control document to this WSP as Appendix 7. If no, the municipality must adopt such an official control within 6 months of submitting this WSP and submit it to the DNR as an amendment to this WSP. Irrespective of whether a critical water deficiency control is in place, does the public water supply utility, city manager, mayor, or emergency manager have standing authority to implement water restrictions?  Yes  No If yes, cite the regulatory authority reference: 8-1-9: WATER CONSERVATION: A. Emergency Regulations: The mayor or assigned designee may impose emergency water usage regulations by limiting the times and hours, or completely prohibiting water use of the city's water system for sprinkling lawns, landscaping and gardens, irrigation, and other uses. The mayor or assigned designee must give notice by publication or by posting in the city hall and other public places. If no, who has authority to implement water use restrictions in an emergency? Cottage Grove Local Water Supply Plan December 2016 23 PART 3. WATER CONSERVATION PLAN Minnesotans have historically benefited from the state’s abundant water supplies, reducing the need for conservation. There are however, limits to the available supplies of water and increasing threats to the quality of our drinking water. Causes of water supply limitation may include: population increases, economic trends, uneven statewide availability of groundwater, climatic changes, and degraded water quality. Examples of threats to drinking water quality include: the presence of contaminant plumes from past land use activities, exceedances of water quality standards from natural and human sources, contaminants of emerging concern, and increasing pollutant trends from nonpoint sources. There are many incentives for conserving water; conservation: • reduces the potential for pumping-induced transfer of contaminants into the deeper aquifers, which can add treatment costs • reduces the need for capital projects to expand system capacity • reduces the likelihood of water use conflicts, like well interference, aquatic habitat loss, and declining lake levels • conserves energy, because less energy is needed to extract, treat and distribute water (and less energy production also conserves water since water is use to produce energy) • maintains water supplies that can then be available during times of drought It is therefore imperative that water suppliers implement water conservation plans. The first step in water conservation is identifying opportunities for behavioral or engineering changes that could be made to reduce water use by conducting a thorough analysis of: • Water use by customer • Extraction, treatment, distribution and irrigation system efficiencies • Industrial processing system efficiencies • Regulatory and barriers to conservation • Cultural barriers to conservation • Water reuse opportunities Once accurate data is compiled, water suppliers can set achievable goals for reducing water use. A successful water conservation plan follows a logical sequence of events. The plan should address both conservation on the supply side (leak detection and repairs, metering), as well as on the demand side (reductions in usage). Implementation should be conducted in phases, starting with the most obvious and lowest-cost options. In some cases one of the early steps will be reviewing regulatory constraints to water conservation, such as lawn irrigation requirements. Outside funding and grants may be available for implementation of projects. Engage water system operators and maintenance staff and customers in brainstorming opportunities to reduce water use. Ask the question: “How can I help save water?” Progress since 2006 Is this your community’s first Water Supply Plan?  Yes  No If yes, describe conservation practices that you are already implementing, such as: pricing, system improvements, education, regulation, appliance retrofitting, enforcement, etc. Priority 1: Significant water reduction; low cost Priority 2: Slight water reduction, low costs (low hanging fruit) Priority 2: Significant water reduction; significant costs Priority 3: Slight water reduction, significant costs (do only if necessary) Cottage Grove Local Water Supply Plan December 2016 24 If no, complete Table 21 to summarize conservation actions taken since the adoption of the 2006 water supply plan. Table 21. Implementation of previous ten-year Conservation Plan 2006 Plan Commitments Action Taken? Change Water Rates Structure to provide conservation pricing  Yes  No Water Supply System Improvements (e.g. leak repairs, valve replacements, etc.) Yes  No Educational Efforts  Yes  No New water conservation ordinances: Time of Day water restrictions (no irrigating 12 –4 pm)  Yes  No Rebate or retrofitting Program (e.g. for toilet, faucets, appliances, showerheads, dish washers, washing machines, irrigation systems, rain barrels, water softeners, etc.  Yes  No Enforcement  Yes  No Describe Other: City of Cottage Grove adopted a Water Conservation Plan on 11/16/2016. The City is an active participant in the Washington County Municipal Water Coalition currently working to evaluate water efficiency across the County.  Yes  No What are the results you have seen from the actions in Table 21 and how were results measured? Total per capita water demand is decreasing; from over 115 gpcd in 2006 – 2009 to roughly 93 gpcd in 2014 – 2015. The total per capita water demand average was approximately 100 gpcd between 2010 and 2015. Average day water demand has been relatively flat over the last 10 years as per capita water usage has dropped as population has slowly increased. However, the maximum day water demands continue to decrease; from a high of 13.4 MGD in 2005 to less than 10.0 MGD in 2010, 2011, 2014, and 2015. Conservation rates and education have decreased summer irrigation demands. The City of Cottage Grove adopted a Water Conservation Plan on November 16, 2016 which is a guide to water conservation opportunities to meet the objectives laid out for the City in the Master Water Supply Plan. This Plan will help the City improve water conservation measures across all DNR conservation objectives. A. Triggers for Allocation and Demand Reduction Actions Complete table 22 by checking each trigger below, as appropriate, and the actions to be taken at various levels or stages of severity. Add in additional rows to the table as needed. Cottage Grove Local Water Supply Plan December 2016 25 Table 22. Short and long-term demand reduction conditions, triggers and actions Objective Triggers Actions Protect Surface Water Flows  Low stream flow conditions  Reports of declining wetland and lake levels Increase promotion of conservation measures  Other: ____________ Short-term demand reduction (less than 1 year)  Extremely high seasonal water demand (more than double winter demand)  Loss of treatment capacity  Lack of water in storage  State drought plan  Well interference  Other: _____________ Enforce the critical water deficiency ordinance to restrict or prohibit lawn watering, vehicle washing, golf course and park irrigation & other nonessential uses.  Supply augmentation through emergency interconnections.  Water allocation through____  Meet with large water users to discuss user’s contingency plan. Long-term demand reduction (>1 year)  Per capita demand increasing  Total demand increase (higher population or more industry)  Water level in well(s) below elevation of _____  Other: _____________ Develop a critical water deficiency ordinance that is or can be quickly adopted to penalize lawn watering, vehicle washing, golf course and park irrigation & other nonessential uses.  Meet with large water users to discuss user’s contingency plan.  Enhanced monitoring and reporting: audits, meters, billing, etc. Governor’s “Critical Water Deficiency Order” declared  Determined by State Enact a water waste ordinance that targets overwatering (causing water to flow off the landscape into streets, parking lots, or similar), watering impervious surfaces (streets, driveways or other hardscape areas), and negligence of known leaks, breaks, or malfunctions. B. Conservation Objectives and Strategies – Key benchmark for DNR This section establishes water conservation objectives and strategies for eight major areas of water use. Objective 1: Reduce Unaccounted (Non-Revenue) Water loss to Less than 10% The Minnesota Rural Waters Association, the Metropolitan Council and the Department of Natural Resources recommend that all water uses be metered. Metering can help identify high use locations and times, along with leaks within buildings that have multiple meters. It is difficult to quantify specific unmetered water use such as that associated with firefighting and system flushing or system leaks. Typically, water suppliers subtract metered water use from total water pumped to calculate unaccounted or non-revenue water loss. Is your ten-year average (2005-2014) unaccounted Water Use in Table 2 higher than 10%? Yes  No What is your leak detection monitoring schedule? Annually Leak Detection occurs annually. Well pumpage is reviewed regularly to monitor for unexpected changes. Cottage Grove Local Water Supply Plan December 2016 26 Water Audits - are intended to identify, quantify and verify water and revenue losses. The volume of unaccounted-for water should be evaluated each billing cycle. The American Water Works Association (AWWA) recommends that ten percent or less of pumped water is unaccounted-for water. Water audit procedures are available from the AWWA and MN Rural Water Association www.mrwa.com . Drinking Water Revolving Loan Funds are available for purchase of new meters when new plants are built. What is the date of your most recent water audit? _Completed Monthly______ Frequency of water audits:  yearly  Every billing cycle Leak detection and survey:  every year  every other year  periodic as needed Year last leak detection survey completed: ___2015______ If Table 2 shows annual water losses over 10% or an increasing trend over time, describe what actions will be taken to reach the <10% loss objective and within what timeframe The City is currently completing a 5 year project to replace 7,500 meters in the City to provide more accurate water usage. The City has installed meters at all public institutions to account for that nonrevenue water. Metering -AWWA recommends that every water supplier install meters to account for all water taken into its system, along with all water distributed from its system at each customer’s point of service. An effective metering program relies upon periodic performance testing, repair, maintenance or replacement of all meters. AWWA also recommends that water suppliers conduct regular water audits to ensure accountability. Some cities install separate meters for interior and exterior water use, but some research suggests that this may not result in water conservation. Complete Table 23 by adding the requested information regarding the number, types, testing and maintenance of customer meters. Table 23. Information about customer meters Customer Category Number of Customers Number of Metered Connections Number of Automated Meter Readers Meter testing intervals (years) Average age/meter replacement schedule (years) Residential 10,471 10,471 10,471 As needed 3.5/25 Irrigation meters 33 33 33 As needed 3.5/25 Commercial 252 252 252 As needed 3.5/25 Public Facilities 26 26 26 As needed 3.5/25 Other 127 127 127 As needed 3.5/25 TOTALS 10,909 10,909 10,909 NA NA For unmetered systems, describe any plans to install meters or replace current meters with advanced technology meters. Provide an estimate of the cost to implement the plan and the projected water savings from implementing the plan. Not applicable. Cottage Grove Local Water Supply Plan December 2016 27 Table 24. Water source meters Number of Meters Meter testing schedule (years) Number of Automated Meter Readers Average age/meter replacement schedule (years Water Source (wells/intakes) 11 Periodically/ every 11 years 11 Well meters were installed in 1996 and are expected to be replaced within the next 5 years. Objective 2: Achieve Less than 75 Residential Gallons per Capita Demand (GPCD) The 2002 average residential per capita demand in the Twin Cities Metropolitan area was 75 gallons per capita per day. Is your average 2010-2015 residential per capita water demand in Table 2 more than 75?  Yes  No What was your 2005 – 2014 ten-year average residential per capita water demand? 74.8 gal/person/day Describe the water use trend over that timeframe: Residential per capita water demand is decreasing; from over 84 gpcd in 2006 – 2009 to roughly 69 gpcd in 2014 – 2015. The Residential per capita water demand average was approximately 75 gpcd between 2010 and 2015. Complete Table 25 by checking which strategies you will use to continue reducing residential per capita demand and project a likely timeframe for completing each checked strategy (Select all that apply and add rows for additional strategies): Table 25. Strategies and timeframe to reduce residential per capita demand Strategy to reduce residential per capita demand Timeframe for completing work  Revise city ordinances/codes to encourage or require water efficient landscaping. 2017/2018  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 2017/2018  Revise ordinances to limit irrigation. Describe the restricted irrigation plan: Restrict watering between 12- 4pm and Odd/even sprinkling ban in place.  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.  Make water system infrastructure improvements  Offer free or reduced cost water use audits) for residential customers. 2017-2020  Implement a notification system to inform customers when water availability conditions change. ongoing  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.) TBD  Provide rebates or incentives to reduce outdoor water use (e.g., turf replacement/reduction, rain gardens, rain barrels, smart irrigation, outdoor water use meters, etc.) The City of Cottage Grove has conducted a rain barrel subside program in the past. The City works with East Metro Water Resources to provide training on rain gardens. The SWWD provides cost participation grants to businesses and residents in Cottage Grove for rain gardens. The City will continue to pursue other partnerships to further this effort. Cottage Grove Local Water Supply Plan December 2016 28 Strategy to reduce residential per capita demand Timeframe for completing work  Identify supplemental Water Resources  Conduct audience-appropriate water conservation education and outreach. 2017  Add additional rate categories for billing 2017/2018 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. Table 26. Strategies and timeframe to reduce institutional, commercial industrial, and agricultural and non-revenue use demand Strategy to reduce total business, industry, agricultural demand Timeframe for completing work  Conduct a facility water use audit for both indoor and outdoor use, including system components 2018, seeking MnTAP assistance.  Install enhanced meters capable of automated readings to detect spikes in consumption Already in place.  Compare facility water use to related industry benchmarks, if available (e.g., meat processing, dairy, fruit and vegetable, beverage, textiles, paper/pulp, metals, technology, petroleum refining etc.), 2019, pursuing grants to assist large water users with reduction efforts.  Install water conservation fixtures and appliances or change processes to conserve water Ongoing, City used a Met. Council grant for this in 2016.  Repair leaking system components (e.g., pipes, valves) Currently audit when needed.  Investigate the reuse of reclaimed water (e.g., stormwater, wastewater effluent, process wastewater, etc.) 2017/2018  Reduce outdoor water use (e.g., turf replacement/reduction, rain gardens, rain barrels, smart irrigation, outdoor water use meters, etc.) Already restrict lawn size.  Train employees how to conserve water 2018, develop a targeted education plan (target ISD833).  Implement a notification system to inform non-residential customers when water availability conditions change. 2017/2018, already partially in place.  [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 code 4714.1702.1  Describe other plans: 3M pollution containment efficiencies. Ongoing Cottage Grove Local Water Supply Plan December 2016 29 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. Total per capita water demand is decreasing; from over 115 gpcd in 2006 – 2009 to roughly 93 gpcd in 2014 – 2015. The total per capita water demand average was approximately 100 gpcd between 2010 and 2015. Residential per capita water demand is decreasing; from over 84 gpcd in 2006 – 2009 to roughly 69 gpcd in 2014 – 2015. The Residential per capita water demand average was approximately 75 gpcd between 2010 and 2015. With the implementation of a new City of Cottage Grove Water Conservation Plan; additional conservation and reduction in per capita water demands is expected. 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  No Calculate a ten year average (2005 – 2014) of the ratio of maximum day demand to average day demand: __2.75__ 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 Water Conservation Program Municipal water suppliers serving over 1,000 people are required to adopt demand reduction measures that include a conservation rate structure, or a uniform rate structure with a conservation program that achieves demand reduction. These measures must achieve demand reduction in ways that reduce water demand, water losses, peak water demands, and nonessential water uses. These measures must be approved before a community may request well construction approval from the Department of Health or before requesting an increase in water appropriations permit volume (Minnesota Statutes, section 103G.291, subd. 3 and 4). Rates should be adjusted on a regular basis to ensure that revenue of the system is adequate under reduced demand scenarios. If a municipal water supplier intends to use a Uniform Rate Structure, a community-wide Water Conservation Program that will achieve demand reduction must be provided. Cottage Grove Local Water Supply Plan December 2016 30 Current Water Rates Include a copy of the actual rate structure in Appendix 9 or list current water rates including base/service fees and volume charges below. Volume included in base rate or service charge: __None__ Frequency of billing:  Monthly  Bimonthly  Quarterly  Other: _________________ Water Rate Evaluation Frequency:  every year  every ___ years  no schedule Date of last rate change: ___January 1, 2016____ Table 27. Rate structures for each customer category (Select all that apply and add additional rows as needed) Customer Category Conservation Billing Strategies in Use * Conservation Neutral Billing Strategies in Use ** Non-Conserving Billing Strategies in Use *** Residential  Monthly Billing  Increasing block rates (volume tiered rates)  Seasonal rates  Time of Use rates  Water bills reported in gallons  Individualized goal rates  Excess Use rates  Drought surcharge  Use water bill to provide comparisons  Service charge not based on water volume  Other (describe)  Uniform  Odd/Even day watering Service charge based on water volume  Declining block  Flat  Other (describe) Commercial/ Industrial/ Institutional  Monthly Billing  Increasing block rates  Seasonal rates  Time of Use rates  Bill water use in gallons  Individualized goal rates  Excess Use rates  Drought surcharge  Use water bill to provide comparisons  Service charge not based on water volume  Other (describe)  Uniform  Service charge based on water volume  Declining block  Flat  Other (describe)  Other * Rate Structures components that may promote water conservation: • Monthly billing: is encouraged to help people see their water usage so they can consider changing behavior. • Increasing block rates (also known as a tiered residential rate structure): Typically, these have at least three tiers: should have at least three tiers. Cottage Grove Local Water Supply Plan December 2016 31 o The first tier is for the winter average water use. o The second tier is the year-round average use, which is lower than typical summer use. This rate should be set to cover the full cost of service. o The third tier should be above the average annual use and should be priced high enough to encourage conservation, as should any higher tiers. For this to be effective, the difference in block rates should be significant. • Seasonal rate: higher rates in summer to reduce peak demands • Time of Use rates: lower rates for off peak water use • Bill water use in gallons: this allows customers to compare their use to average rates • Individualized goal rates: typically used for industry, business or other large water users to promote water conservation if they keep within agreed upon goals. Excess Use rates: if water use goes above an agreed upon amount this higher rate is charged • Drought surcharge: an extra fee is charged for guaranteed water use during drought • Use water bill to provide comparisons: simple graphics comparing individual use over time or compare individual use to others. • Service charge or base fee that does not include a water volume – a base charge or fee to cover universal city expenses that are not customer dependent and/or to provide minimal water at a lower rate (e.g., an amount less than the average residential per capita demand for the water supplier for the last 5 years) • Emergency rates -A community may have a separate conservation rate that only goes into effect when the community or governor declares a drought emergency. These higher rates can help to protect the city budgets during times of significantly less water usage. **Conservation Neutral** • Uniform rate: rate per unit used is the same regardless of the volume used • Odd/even day watering –This approach reduces peak demand on a daily basis for system operation, but it does not reduce overall water use. *** Non-Conserving *** • Service charge or base fee with water volume: an amount of water larger than the average residential per capita demand for the water supplier for the last 5 years • Declining block rate: the rate per unit used decreases as water use increases. • Flat rate: one fee regardless of how much water is used (usually unmetered). Provide justification for any conservation neutral or non-conserving rate structures. If intending to adopt a conservation rate structure, include the timeframe to do so: While conservation neutral, Odd/Even day watering reduces peak water usage, reducing infrastructure needs required to meet peak demands. Cottage Grove Local Water Supply Plan December 2016 32 Objective 7: Additional strategies to Reduce Water Use and Support Wellhead Protection Planning Development and redevelopment projects can provide additional water conservation opportunities, such as the actions listed below. If a Uniform Rate Structure is in place, the water supplier must provide a Water Conservation Program that includes at least two of the actions listed below. Check those actions that you intent to implement within the next 10 years. Table 28. Additional strategies to Reduce Water Use & Support Wellhead Protection  Participate in the GreenStep Cities Program, including implementation of at least one of the 20 “Best Practices” for water  Prepare a Master Plan for Smart Growth (compact urban growth that avoids sprawl)  Prepare a Comprehensive Open Space Plan (areas for parks, green spaces, natural areas)  Adopt a Water Use Restriction Ordinance (lawn irrigation, car washing, pools, etc.)  Adopt an Outdoor Lawn Irrigation Ordinance  Adopt a Private well Ordinance (private wells in a city must comply with water restrictions)  Implement a Stormwater Management Program  Adopt Non-Zoning Wetlands Ordinance (can further protect wetlands beyond state/federal laws-for vernal pools, buffer areas, restrictions on filling or alterations)  Adopt a Water Offset Program (primarily for new development or expansion)  Implement a Water Conservation Outreach Program  Hire a Water Conservation Coordinator (part-time)  Implement a Rebate program for water efficient appliances, fixtures, or outdoor water management  Other Objective 8: Tracking Success: How will you track or measure success through the next ten years? Cottage Grove will track per capita water demand on a regular basis to confirm the conservation trend. The City of Cottage Grove adopted a Water Conservation Plan on November 16, 2016 which is a guide to water conservation opportunities to meet the objectives laid out for the City in the Master Water Supply Plan. This Plan will help the City improve water conservation measures across all DNR conservation objectives. The City is also an active participant in the Washington County Municipal Water Coalition. The communities are working together to complete a detailed evaluation of water efficiency and allow comparison between communities. Tip: The process to monitor demand reduction and/or a rate structure includes: a) The DNR District Hydrologist or Groundwater Appropriation Hydrologist will call or visit the community the first 1-3 years after the water supply plan is completed. b) They will discuss what activities the community is doing to conserve water and if they feel their actions are successful. The Water Supply Plan, Part 3 tables and responses will guide the discussion. For example, they will discuss efforts to reduce unaccounted for water loss if that is a problem, or go through Tables 33, 34 and 35 to discuss new initiatives. c) The city representative and the hydrologist will discuss total per capita water use, residential per capita water use, and business/industry use. They will note trends. Cottage Grove Local Water Supply Plan December 2016 33 d) They will also discuss options for improvement and/or collect case studies of success stories to share with other communities. One option may be to change the rate structure, but there are many other paths to successful water conservation. e) If appropriate, they will cooperatively develop a simple work plan for the next few years, targeting a couple areas where the city might focus efforts. A. Regulation Complete Table 29 by selecting which regulations are used to reduce demand and improve water efficiencies. Add additional rows as needed. Copies of adopted regulations or proposed restrictions or should be included in Appendix 10 (a list with hyperlinks is acceptable). Table 29. Regulations for short-term reductions in demand and long-term improvements in water efficiencies Regulations Utilized When is it applied (in effect)?  Rainfall sensors required on landscape irrigation systems Ongoing  Seasonal  Only during declared Emergencies  Water efficient plumbing fixtures required New Development  Replacement  Rebate Programs  Critical/Emergency Water Deficiency ordinance Only during declared Emergencies  Watering restriction requirements (time of day, allowable days, etc.)Odd/Even  2 days/week  Only during declared Emergencies  Water waste prohibited (for example, having a fine for irrigators spraying on the street) Ongoing  Seasonal  Only during declared Emergencies  Limitations on turf areas (requiring lots to have 10% - 25% of the space in natural areas) New Development  Shoreland/zoning  Other  Soil preparation requirement s (after construction, requiring topsoil to be applied to promote good root growth) New Development  Construction Projects  Other  Tree ratios (requiring a certain number of trees per square foot of lawn) New development  Shoreland/zoning  Other  Permit to fill swimming pool and/or requiring pools to be covered (to prevent evaporation) Ongoing  Seasonal  Only during declared Emergencies  Ordinances that permit stormwater irrigation, reuse of water, or other alternative water use (Note: be sure to check current plumbing codes for updates) We encourage and allow but do not have an ordinance language to it. All request must comply with Minnesota State Plumbing Code. Cottage Grove Local Water Supply Plan December 2016 34 B. Retrofitting Programs Education and incentive programs aimed at replacing inefficient plumbing fixtures and appliances can help reduce per capita water use, as well as energy costs. It is recommended that municipal water suppliers develop a long-term plan to retrofit public buildings with water efficient plumbing fixtures and appliances. Some water suppliers have developed partnerships with organizations having similar conservation goals, such as electric or gas suppliers, to develop cooperative rebate and retrofit programs. A study by the AWWA Research Foundation (Residential End Uses of Water, 1999) found that the average indoor water use for a non-conserving home is 69.3 gallons per capita per day (gpcd). The average indoor water use in a conserving home is 45.2 gpcd and most of the decrease in water use is related to water efficient plumbing fixtures and appliances that can reduce water, sewer and energy costs. In Minnesota, certain electric and gas providers are required (Minnesota Statute 216B.241) to fund programs that will conserve energy resources and some utilities have distributed water efficient showerheads to customers to help reduce energy demands required to supply hot water. Retrofitting Programs Complete Table 30 by checking which water uses are targeted, the outreach methods used, the measures used to identify success, and any participating partners. Table 30. Retrofitting programs (Select all that apply) Water Use Targets Outreach Methods Partners  low flush toilets,  toilet leak tablets,  low flow showerheads,  faucet aerators; Education about  free distribution of  rebate for  other Gas company  Electric company  Watershed organization  water conserving washing machines,  dish washers,  water softeners; Education about  free distribution of  rebate for  other Gas company  Electric company  Watershed organization  rain gardens, rain barrels,  Native/drought tolerant landscaping, etc. Education about  free distribution of  rebate for  other Gas company  Electric company  Watershed organization Briefly discuss measures of success from the above table (e.g. number of items distributed, dollar value of rebates, gallons of water conserved, etc.): Per capita water usage is decreasing. Cottage Grove Local Water Supply Plan December 2016 35 C. Education and Information Programs Customer education should take place in three different circumstances. First, customers should be provided information on how to conserve water and improve water use efficiencies. Second, information should be provided at appropriate times to address peak demands. Third, emergency notices and educational materials about how to reduce water use should be available for quick distribution during an emergency. Proposed Education Programs Complete Table 31 by selecting which methods are used to provide water conservation and information, including the frequency of program components. Select all that apply and add additional lines as needed. Table 31. Current and Proposed Education Programs Education Methods General summary of topics #/Year Frequency Billing inserts or tips printed on the actual bill Billing summary, comparing usage to prior months, conservation tips 12  Ongoing  Seasonal  Only during declared emergencies Consumer Confidence Reports Included in water bill 1  Ongoing  Seasonal  Only during declared Emergencies Press releases to traditional local news outlets (e.g., newspapers, radio and TV) Press releases and reminders be sent out to SWC Bulletin and SWCTC channel 4  Ongoing  Seasonal  Only during declared Emergencies Social media distribution (e.g., emails, Facebook, Twitter) Utilize Facebook and Instagram to push out educational posts and reminders to residents. periodic  Ongoing  Seasonal  Only during declared Emergencies Paid advertisements (e.g., billboards, print media, TV, radio, web sites, etc.) Our Cottage Grove Reports videos  Ongoing  Seasonal  Only during declared Emergencies Presentations to community groups League of Women Voters; Environmental Commission; Public Services Commission  Ongoing  Seasonal  Only during declared Emergencies Staff training  Ongoing  Seasonal  Only during declared Emergencies Facility tours  Ongoing  Seasonal  Only during declared Emergencies Cottage Grove Local Water Supply Plan December 2016 36 Education Methods General summary of topics #/Year Frequency Displays and exhibits Public Works Open House  Ongoing  Seasonal  Only during declared Emergencies Marketing rebate programs (e.g., indoor fixtures & appliances and outdoor practices) Rebate programs through grants to improve water efficiency. Received Met Council Water Efficiency Grant in 2015.  Ongoing  Seasonal  Only during declared Emergencies Community news letters Utilize the City’s quarterly newsletters and billing inserts to better educate residents on water usage. 4  Ongoing  Seasonal  Only during declared Emergencies Direct mailings (water audit/retrofit kits, showerheads, brochures) Proposed to be included in monthly water bills  Ongoing  Seasonal  Only during declared Emergencies Information kiosk at utility and public buildings  Ongoing  Seasonal  Only during declared Emergencies Public Service Announcements Proposed  Ongoing  Seasonal  Only during declared Emergencies Cable TV Programs Utilizing the City’s monthly programs on the South Washington County Telecommunications Commission Cable channel 2  Ongoing  Seasonal  Only during declared Emergencies Demonstration projects (landscaping or plumbing) City Hall water reuse system; Watershed district;  Ongoing  Seasonal  Only during declared Emergencies K-12 Education programs (Project Wet, Drinking Water Institute, presentations) CLIMB Theatre for grades K-2nd.  Ongoing  Seasonal  Only during declared Emergencies Community Events (children’s water festivals, environmental fairs) Safety Camp, Public Works Open House, East Metro 3  Ongoing  Seasonal  Only during declared Emergencies Community education classes East Metro Water Resources  Ongoing  Seasonal  Only during declared Emergencies Water Week promotions  Ongoing  Seasonal  Only during declared Emergencies Cottage Grove Local Water Supply Plan December 2016 37 Education Methods General summary of topics #/Year Frequency Website (http://www.cottage- grove.org/environment/water-conservation) Have water conservation information and ordinances on website Always  Ongoing  Seasonal  Only during declared Emergencies Targeted efforts (large volume users, users with large increases) Using monthly water bills to determine if a customer is using drastically more than normal. Always  Ongoing  Seasonal  Only during declared Emergencies Notices of ordinances All ordinances are posted on the website but can remind residents through social media.  Ongoing  Seasonal  Only during declared Emergencies Emergency conservation notices Utilize the City’s Critical Deficiency ordinance. As Needed  Ongoing  Seasonal  Only during declared Emergencies Other:  Ongoing  Seasonal  Only during declared Emergencies Briefly discuss what future education and information activities your community is considering in the future: Would like to do more with website and social media; voluntary water audits; retrofit program; and enforcement using educational door hangers to residents in violation of water conservation codes. The City of Cottage Grove adopted a Water Conservation Plan on November 16, 2016 which is a guide to water conservation opportunities to meet the objectives laid out for the City in the Master Water Supply Plan. This Plan will help the City improve water conservation measures across all DNR conservation objectives. The City is an active participant in the Washington County Municipal Water Coalition currently working to evaluate water efficiency across the County while identifying water savings and educational opportunities. Cottage Grove Local Water Supply Plan December 2016 38 Part 4. ITEMS FOR METROPOLITAN AREA COMMUNITIES Minnesota Statute 473.859 requires WSPs to be completed for all local units of government in the seven-county Metropolitan Area as part of the local comprehensive planning process. Much of the information in Parts 1-3 addresses water demand for the next 10 years. However, additional information is needed to address water demand through 2040, which will make the WSP consistent with the Metropolitan Land Use Planning Act, upon which the local comprehensive plans are based. This Part 4 provides guidance to complete the WSP in a way that addresses plans for water supply through 2040. A. Water Demand Projections through 2040 Complete Table 7 in Part 1D by filling in information about long-term water demand projections through 2040. Total Community Population projections should be consistent with the community’s system statement, which can be found on the Metropolitan Council’s website and which was sent to the community in September 2015. Projected Average Day, Maximum Day, and Annual Water Demands may either be calculated using the method outlined in Appendix 2 of the 2015 Master Water Supply Plan or by a method developed by the individual water supplier. B. Potential Water Supply Issues Complete Table 10 in Part 1E by providing information about the potential water supply issues in your community, including those that might occur due to 2040 projected water use. The Master Water Supply Plan provides information about potential issues for your community in Appendix 1 (Water Supply Profiles). This resource may be useful in completing Table 10. You may document results of local work done to evaluate impact of planned uses by attaching a feasibility assessment or providing a citation and link to where the plan is available electronically. C. Proposed Alternative Approaches to Meet Extended Water Demand Projections Complete Table 12 in Part 1F with information about potential water supply infrastructure impacts (such as replacements, expansions or additions to wells/intakes, water storage and treatment capacity, distribution systems, and emergency interconnections) of extended plans for development and redevelopment, in 10-year increments through 2040. It may be useful to refer to information in the community’s local Land Use Plan, if available. Complete Table 14 in Part 1F by checking each approach your community is considering to meet future demand. For each approach your community is considering, provide information about the amount of future water demand to be met using that approach, the timeframe to implement the approach, potential partners, and current understanding of the key benefits and challenges of the approach. Cottage Grove Local Water Supply Plan December 2016 39 As challenges are being discussed, consider the need for: evaluation of geologic conditions (mapping, aquifer tests, modeling), identification of areas where domestic wells could be impacted, measurement and analysis of water levels & pumping rates, triggers & associated actions to protect water levels, etc. D. Value-Added Water Supply Planning Efforts (Optional) The following information is not required to be completed as part of the local water supply plan, but completing this can help strengthen source water protection throughout the region and help Metropolitan Council and partners in the region to better support local efforts. Source Water Protection Strategies Does a Drinking Water Supply Management Area for a neighboring public water supplier overlap your community?  Yes  No If you answered no, skip this section. If you answered yes, please complete Table 32 with information about new water demand or land use planning-related local controls that are being considered to provide additional protection in this area. Table 32. Local controls and schedule to protect Drinking Water Supply Management Areas Local Control Schedule to Implement Potential Partners  None at this time  Comprehensive planning that guides development in vulnerable drinking water supply management areas 2018 City of Newport City of St. Paul Park  Zoning overlay  Other: Technical assistance From your community’s perspective, what are the most important topics for the Metropolitan Council to address, guided by the region’s Metropolitan Area Water Supply Advisory Committee and Technical Advisory Committee, as part of its ongoing water supply planning role?  Coordination of state, regional and local water supply planning roles  Regional water use goals  Water use reporting standards  Regional and sub-regional partnership opportunities  Identifying and prioritizing data gaps and input for regional and sub-regional analyses  Others: Statewide/region wide water conservation programs should be considered. It would increase efficiency of time and produce a better result when multiple cities are able to plan together rather as individuals. Increased grant and funding opportunities can help us and other cities better achieve our water conservation goals. Cottage Grove Local Water Supply Plan December 2016 40 APPENDICES TO BE SUBMITTED BY THE WATER SUPPLIER Appendix 1: Well records and maintenance summaries – see Part 1C Appendix 2: Water level monitoring plan – see Part 1E Appendix 3: Water level graphs for each water supply well – see Part 1E Appendix 4: Capital Improvement Plan – see Part 1E Appendix 5: Emergency Telephone List – see Part 2C Appendix 6: Cooperative Agreements for Emergency Services – see Part 2C Appendix 7: Municipal Critical Water Deficiency Ordinance – see Part 2C Appendix 8: Graph showing annual per capita water demand for each customer category during the last ten-years – see Part 3 Objective 4 Appendix 9: Water Rate Structure – see Part 3 Objective 6 Appendix 10: Adopted or proposed regulations to reduce demand or improve water efficiency – see Part 3 Objective 7 Appendix 11: Implementation Checklist – summary of all the actions that a community is doing, or proposes to do, including estimated implementation dates Cottage Grove Local Water Supply Plan–November 2016 Appendix 1: Well records and maintenance summaries Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Appendix 2: Water level monitoring plan The City currently monitors each well and its levels through the SCADA system. Each well records the well level in feet and on a daily basis. The reading is then sent to a spreadsheet. The levels are then compared when well performance checks are done on the wells. Each well is pulled for maintenance every 11 years. The City pulls one well per year. The SCADA system measures the water level daily. Currently the SCADA system is giving inaccurate readings in wells 3, 6 and 9. Those are scheduled to be fixed when that well is scheduled to be pulled. We have water level data for each well dating back to 2011. Cottage Grove Local Water Supply Plan–November 2016 Appendix 3: Water level graphs for each water supply well Each well is pulled for maintenance every 11 years. The City pulls 1 well per year. The SCADA system measures the water level daily. Currently the SCADA system is giving inaccurate readings in wells 3, 6 and 9. Those are scheduled to be fixed when that well is scheduled to be pulled. We have water level data for each well dating back to 2011. Well #1 - 208808 Well #2 - 208809 0 20 40 60 80 100 120 140 160 Wa t e r L e v e l ( F e e t ) Axis Title Well #1 Well #1 Linear (Well #1) 0 20 40 60 80 100 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #2 Well #2 Linear (Well #2) Cottage Grove Local Water Supply Plan–November 2016 Well #3 - 208807 Well #4 -208805 0 0.2 0.4 0.6 0.8 1 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #3 Well #3 0 50 100 150 200 250 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #4 Well #4 Linear (Well #4) Cottage Grove Local Water Supply Plan–November 2016 Well #5 -208806 Well #6 - 201238 0 100 200 300 400 500 600 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #5 Well #5 0 50 100 150 200 250 300 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #6 Cottage Grove Local Water Supply Plan–November 2016 Well #7 - 201227 Well #8 - 110464 0 50 100 150 200 250 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #7 0 20 40 60 80 100 120 140 160 180 200 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #8 Cottage Grove Local Water Supply Plan–November 2016 Well #9 - 165602 Well #10 - 191904 0 50 100 150 200 250 300 350 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( f e e t ) Date Well #9 0 20 40 60 80 100 120 140 160 180 200 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ( Date Well #10 Cottage Grove Local Water Supply Plan–November 2016 Well #11 - 655944 0 20 40 60 80 100 120 140 160 180 200 1/ 1 / 2 0 1 1 4/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 10 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 4/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 10 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 4/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 10 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 4/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 10 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 4/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 10 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 4/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Wa t e r L e v e l ( F e e t ) Date Well #11 0 100 200 300 400 500 600 1/ 1 / 2 0 1 1 3/ 1 / 2 0 1 1 5/ 1 / 2 0 1 1 7/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 11 / 1 / 2 0 1 1 1/ 1 / 2 0 1 2 3/ 1 / 2 0 1 2 5/ 1 / 2 0 1 2 7/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 11 / 1 / 2 0 1 2 1/ 1 / 2 0 1 3 3/ 1 / 2 0 1 3 5/ 1 / 2 0 1 3 7/ 1 / 2 0 1 3 9/ 1 / 2 0 1 3 11 / 1 / 2 0 1 3 1/ 1 / 2 0 1 4 3/ 1 / 2 0 1 4 5/ 1 / 2 0 1 4 7/ 1 / 2 0 1 4 9/ 1 / 2 0 1 4 11 / 1 / 2 0 1 4 1/ 1 / 2 0 1 5 3/ 1 / 2 0 1 5 5/ 1 / 2 0 1 5 7/ 1 / 2 0 1 5 9/ 1 / 2 0 1 5 11 / 1 / 2 0 1 5 1/ 1 / 2 0 1 6 3/ 1 / 2 0 1 6 5/ 1 / 2 0 1 6 7/ 1 / 2 0 1 6 Well Levels 2011-2016 (Feet) Well #1 Well #2 Well #3 Well #4 Well #5 Well #6 Well #7 Well #8 Well #9 Well #10 Well #11 Cottage Grove Local Water Supply Plan–November 2016 Appendix 4: Capital Improvement Plan Water CIP 2014-2019 2014 2015 2016 2017 2018 2019 Water Meter Replacement project $225,000 $206,250 $206,250 $225,000 0 0 Pull well - annual maintenance $70,000 $70,000 $70,000 $70,000 $70,000 $70,000 Repaint interior & exterior of Water tower $605,000 $730,000 0 0 0 0 Well #12 0 0 0 0 $150,000 $1,500,000 Cottage Grove Local Water Supply Plan–November 2016 Appendix 5: Emergency Telephone List 7/11/16 Emergency Response Team Name Work Telephone Alternate Telephone Emergency Response Lead Rick Alt 651-458-2842 Alternate Emergency Response Lead Charlene Stevens 651-458-2822 Water Operator Rick Alt 651-458-2842 Alternate Water Operator Les Burshten 651-458-2810 Public Communications Sharon Madsen 651-458-2882 State and Local Emergency Response Contacts Name Work Telephone Alternate Telephone State Incident Duty Officer Minnesota Duty Officer 800/422-0798 Out State 651-649-5451 Metro County Emergency Director Doug Berglund 651-430-7682 National Guard Minnesota Duty Officer 800/422-0798 Out State 651-649-5451 Metro Mayor/Board Chair Myron Bailey 651-459-4734 Fire Chief Rick Redenius 651-458-2855 Sheriff William M. Hutton 651-439-9381 Police Chief Craig Woolery 651-458-2850 Ambulance Regina Hospital 651-480-4100 Hospital Regina Hospital 651-480-4100 Doctor or Medical Facility HealthEast: Cottage Grove Clinic 651-326-5800 State and Local Agencies Name Work Telephone Alternate Telephone MDH District Engineer Gennadiy Begelman 651-201-5000 MDH Drinking Water Protection 651-201-4700 State Testing Laboratory Minnesota Duty Officer 800/422-0798 Out State 651-649-5451 Metro MPCA Environmental Emergencies Hotline (24 Hours) 800-422-0798 DNR Area Hydrologist Jen Sorensen 651-259-5754 County Water Planner Washington County Public Health and Environment Department 651-430-6655 Utilities Name Work Telephone Alternate Telephone Electric Company Xcel Energy 1-800-895-2999 Gas Company Xcel Energy CenterPoint 1-800-295-2999 612-372-5050 800-296-9815 Telephone Company CenturyLink Comcast Hughesnet DIRECTV Gopher State One Call Utility Locations 800-252-1166 651-454-0002 Highway Department MNDOT 651-296-3000 Mutual Aid Agreements Name Work Telephone Alternate Telephone Neighboring Water System St. Paul Park 651-459-9785 Emergency Water Connection St. Paul Park 651-459-9785 Materials Cottage Grove Local Water Supply Plan–November 2016 Technical/Contracted Services/Supplies Name Work Telephone Alternate Telephone MRWA Technical Services MN Rural Water Association 800-367-6792 Well Driller/Repair E.H. Renner and Sons 763-427-6100 Pump Repair Traut Wells 763-427-6100 Electrician Park Grove Electric 651-459-8888 Plumber Rumpca Services Inc. 651-459-2896 Backhoe Rumpca Enterprise 651-459-2931 Chemical Feed Meter Repair Mantyla Well Drilling 651-436-7600 Generator Allied Generators 651-770-3483 Valves Duncan Co. 612-331-1776 Pipe & Fittings Duncan Co. 612-331-1776 Water Storage Laboratory Engineering firm Stantec Communications Name Work Telephone Alternate Telephone News Paper South Washington County Bulletin 651-319-4280 Radio Station WCCO Radio 612-370-0611 School Superintendent Keith Jacobus 651-425-6201 Property & Casualty Insurance Cottage Grove Local Water Supply Plan–November 2016 Appendix 6: Cooperative agreements for emergency services Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Cottage Grove Local Water Supply Plan–November 2016 Appendix 7: Municipal Critical Water Deficiency Ordinances 8-1-9: WATER CONSERVATION: A. Emergency Regulations: The mayor or assigned designee may impose emergency water usage regulations by limiting the times and hours, or completely prohibiting water use of the city's water system for sprinkling lawns, landscaping and gardens, irrigation, and other uses. The mayor or assigned designee must give notice by publication or by posting in the city hall and other public places. Cottage Grove Local Water Supply Plan–November 2016 Appendix 8: Graph showing annual per capita water demand for each customer category during the last ten years Cottage Grove Local Water Supply Plan–November 2016 Appendix 9: Water Rate Structure Summary of Water Rates Water Rates per Month (applies to both residential and commercial) As of January 1, 2016 Base charge per month $1.50 Usage up to 10,000 gals/mo. $1.30/1,000 gals Usage from 10,001-20,000 gals/mo. $1.90/1,000 gals Usage over 20,001 gallons per mo. $2.15/1,000 gals Cottage Grove Local Water Supply Plan–November 2016 Appendix 10: Adopted or proposed regulations to reduce demand or improve water efficiency 8-1-9: WATER CONSERVATION: A. Emergency Regulations: The mayor or assigned designee may impose emergency water usage regulations by limiting the times and hours, or completely prohibiting water use of the city's water system for sprinkling lawns, landscaping and gardens, irrigation, and other uses. The mayor or assigned designee must give notice by publication or by posting in the city hall and other public places. B. Watering Lawns And Gardens: 1. The watering and sprinkling of lawns and/or gardens from a municipal water supply system shall be permitted on even numbered days for property with even numbered addresses and on odd numbered days for property with odd numbered addresses; except, that any property may be watered on the thirty first day of any month. 2. Outdoor watering is prohibited between the hours of twelve o'clock (12:00) noon and four o'clock (4:00) P.M. 3. The foregoing limitations shall apply only to property served by city water. 4. Fees for violating a watering ban or the restrictions imposed by this subsection are established by city council resolution. C. Exempt Watering Activities: 1. Hand watering flower beds, washing vehicles, and water apparatus' used by children playing are exempt from the even-odd day and time of day watering bans. 2. Watering lawns and landscaping for the first thirty (30) days after the establishment or planting of new lawns or landscaping is permitted with a permit from public works. (Ord. 909, 12-19-2012) D. Leak In Service Line: Any owner, occupant, or user of premises who shall discover a leak in a service line to the premises shall notify the public works department within twenty four (24) hours. Any water wasted due to failure of such person to comply with this regulation shall be estimated by the city water and wastewater division and be charged against the owner of such premises at the established rate. (Ord. 672, 11-17-1999; amd. 2000 Code; Ord. 909, 12-19-2012) Cottage Grove Local Water Supply Plan–November 2016 Appendix 11: Implementation Checklist – summary of all the actions that a community is doing, or proposes to do, including estimated implementation dates. Water Conservation Action Implementation Status/Date Metering Currently in effect Monthly Billing Currently in effect Leak Detection and Repair Currently in effect Conservation Rate Structure Currently in effect Odd/Even Sprinkling Ban Currently in effect Water Emergency Ordinance Currently in effect Monthly Billing Inserts Currently in effect Watering Ban During Peak Hours Currently in effect Public Service Announcements Currently in effect City Hall rainwater harvesting system Currently in effect Greater Utilization of Website Proposed/2017 Greater Utilization of Social media Proposed/2017 Voluntary Water Audits Proposed/2017 Study use of Pressure reducing valves in high pressure areas Proposed/2017 Creating separate billing structures for commercial and industrial customers Proposed/2017 Requiring separate irrigation meters Proposed/2017 Study plausibility of using recycled water for industrial purposes Proposed/TBD Study plausibility of using stormwater for ball field irrigation Proposed/2017