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Imp. Proj. #5811 4 a w i - j - i W., ater Supply Plan Update September 24, 1999 An L "It FA V! 05ONSULTING ENGINEERS Prepared by Nvard R. Green ConjDarTy i Project No. 805230J Howard R. Green Company 1326 Energy Park Drive St. Paul, MN 55108 Phone: 651-644-4389 FAX: 651-644-9446 www.hrgreen.com WATER SUPPLY PLAN UPDATE JOINT WATER COMMISSION SEPTEMBER 24, 1999 s ns 2 1 n. i =,,, P CERTIFICATION I hereby certify that this Water Supply Plan was written by me or under my direct supervision and that I am a duly registered Professional Engineer under the laws of the State of Minnesota. 6 01 Chris Catlin, P.E. Reg. No. 25686 Prepared by: Ka Date 805230JMSP 805230J/W S P TABLE OF CONTENTS GLOSSARYOF TERMS .......................................................................... ..............................1 INTRODUCTION ..................................................................................... ............................... 2 PART I. WATER SUPPLY SYSTEM DESCRIPTION AND EVALUATION A. ANALYSIS OF WATER DEMAND ............................................... ............................... 3 B. TREATMENT AND STORAGE CAPACITY ................................. ............................... 5 C. SOURCE OF WATER SUPPLY .................................................... ..............................6 D. ADEQUACY OF SYSTEM TO SUPPLY DEMAND ....................... ..............................6 E . SUMMARY OF DATA ................................................................... ..............................9 PART II. EMERGENCY PLAN FOR PUBLIC WATER SYSTEM INTRODUCTION..................................................................................... .............................18 A. EMERGENCY TELEPHONE LIST ............................................... .............................18 B. CURRENT WATER SOURCES AND SERVICE AREA ............... .............................19 C. PROCEDURE FOR AUGMENTING WATER SUPPLIES ............ .............................19 D. DEMAND REDUCTION MEASURES ........................................ ............................... 21 E. PROCEDURES FOR WATER ALLOCATION .............................. .............................23 F. TRIGGERS FOR IMPLEMENTING PLAN COMPONENTS ......... .............................24 G . ENFORCEMENT ......................................................................... .............................25 H. WATER SUPPLY PROTECTION ................................................ .............................26 PART III. WATER CONSERVATION PLAN INTRODUCTION ................................................................................... ............................... 31 A . ROLE OF CONSERVATION ........................................................ .............................31 B. WATER CONSERVATION POTENTIAL ...................................... .............................31 C. WATER CONSERVATION PROGRAMS ..................................... .............................32 D . ADOPTION OF PLAN .................................................................. .............................38 805230J/W S P PART IV. ITEMS FOR METROPOLITAN AREA PUBLIC SUPPLIERS A. DESCRIPTION [}F THE MUNICIPAL SYSTEM ...................... ................................. 39 B. WATER UTILITY OPERATIONS .................................................................. ........... 39 C. CONSERVATION PROGRAM ............................................................ ..................... 3S O. EMERGENCY PREPAREDNESS/CONTINGENCY PLAN ....................................... �� E. COORDINAT (]F PLANNING EFFORTS WITH OTHER SUPPLIERS AND PUBLIC AGENCIES ......... ............................................................................... 39 F. PROBLEMS AND POTENTIAL SOLUTIONS ........................................ .................. 4O G. WELLHEAD PROTECTION PROGRAM ................................................................... 4O M. IMPLEMENTATION PROGRAM ......................................... ..................................... 4O LIST <]FTABLES � Table 1-1. Historic Population and Water Service Information ................................. 1O Table 1-2. Water Use Per Capita ............................................................................. 11 Table 1-3 Annual Water Sales — City of Crystal ------------------12 � Table 1-4 Annual Water Sales —C������OV2/|� �� —' --------------. 1� � Table 1-5 Annual Water Sales — City Of New Hope ................................................. 13 Table 1-6 Annual Water Sales — Joint Water Commission ...................................... 13 [ Table 1-7 � Unaccounted-for Water USe ----------------------' 14 � Table 1-8 Seasonal Water Use ............................................................................... 15 Table 1-9 Peak Day Demands ................................................................................ 15 Table 1-10 Water Use Projections — City Of Crystal .................................................. 18 / Table 1-11 Water Use Projections — City Of Golden Valley ....................................... 16 Table 1-12 Water Use Projections —CitvofNevvHOpe---------------16 Table 1-13 Water Use Projections — Joint Water Commission .................................. 17 � Table 1-14 Water Supply System Capacity ---------------------17 Table 11-1 Tab 11-2 Table 11-3 Table 11-4 Table 11 Emergency Response Telephone List; Joint Water Commission Staff—.28 Emergency Response Telephone List; Adjacent Communities, State and Local Agencies .............................................................................. 28 Emergency Event Evaluation Team ........ ............................................... 29 Triggers to Reduce Short-Term Demand ................................................ 29 Emergency Reporting Instruction ............................................................ 3O Table 111-1 Potential Water Savings From Fixture Replacement Program ................. 37 LIST OFFIGURES Figure 1-1 Joint Water CD0nOission, Ex Water System Map APPENDIX A. APPENDIX B. APPENDIX C. APPENDIX D. K8ODNR AND METROPOLITAN COUNCIL GUIDELINES MONTHLY WATER USE DATA WATER CONSERVATION BROCHURES AND INFORMATION JOINT WATER COMMISSION FIVE YEAR C|P iv GLOSSARY OF TERMS AWWA — American Water Works Association CIP — Capital Improvements Plan DNR — Department of Natural Resources GPCD — gallons per capita per day. A measure of daily water use on a per person basis. gpm — gallons per minute. A measure of water flow rate. JWC — Joint Water Commission MG — million gallons MGID — million gallons per day. A measure of daily water use or water flow. PRV — pressure reducing valve psi — pounds per square inch. A measure of water pressure. WHP — Wellhead Protection. Refers to the State's program for drinking water protection. 805230J\WSP 1 The 1995 Water Supply Plan, as mandated by Chapter 186 of the 1993 Minnesota legislative session laws, was developed to meet the intent of the Minnesota Department of Natural Resources (DNR) and Metropolitan Council guidelines (attached as Appendix A) for water emergency and conservation plans. This plan provided the Joint Water Commission (JWC) and its customers guidance for water system emergencies and a conservation plan for the JWC's water system. The Metropolitan Council requires communities with municipal water supplies in the metropolitan area to periodically submit updates to their Comprehensive Plans, which include the Water Supply Plans. The purpose of this update to the 1995 Water Supply Plan is to fulfill the conservation planning requirements of the DNR, and to meet the Comprehensive Plan requirements of the Metropolitan Council. The Water Supply Plan Update is divided into four parts. The first part includes analysis of the current status of the water system, water demand, and supplies. The second part outlines emergency planning for public water supplies. The third part contains the water conservation plan. The fourth part itemizes the plan elements required by Chapter 186 in the metropolitan area. 805230J \WSP 2 PART 1. WATER SUPPLY SYSTEM DESCRIPTION AND EVALUATION DNR Water Appropriation Permit Number: Not Applicable Name of Water Supplier: Joint Water Commission Address: 7800 Golden Valley Road, Golden Valley, MN 55427 -4588 Contact Person: Jeannine Clancy, Public Works Director, City of Golden Valley, (612) 593- 8000 Population of Service Area: 66,064 Total Number of Service Connections: 20,091 The cities of Crystal, Golden Valley, and New Hope share a water system, operated by the Joint Water Commission (JWC). The system serves a population of 66,000. The JWC purchases treated water from the City of Minneapolis, supplied through two metered connections from the Minneapolis system. The JWC system provides 3.5 million gallons of elevated storage and 28.0 million gallons of ground storage, which is pumped into the system by booster stations located in Crystal and Golden Valley. A map of the JWC water system is included as Figure 1 -1. A. ANALYSIS OF WATER DEMAND A.1. Summary of Historic Water Use Table 1 -1 presents historic water service data from 1988 through 1998 including population, the number of service connections and water use data for each individual city, and totals for the JWC. The data was obtained from City pumping and water billing records. There is no water sales data available before 1988. As shown in Table 1 -1, the population, volume of water sold and the number of service connections have shown relatively little variability over the last eleven years. In fact, population for the JWC has been decreased over the last five years. Significant variations in water use over the last ten years are mainly due to variations in climate. Water use in 1988 and 1989 was significantly higher than any other years due to severely dry weather. Water use was notably lower in 1993 due to higher than normal summer precipitation. Excluding 1988, 1989 and 1993, water use has not varied by more than twelve percent in any of the three communities, or the JWC as a whole. Water purchased from Minneapolis has not vaned by more than eight percent over the same period. A.2. Per Capita Water Use Per capita water use and per capita residential water use is summarized in Table 1 -2. Per capita water use is determined by dividing the total water usage, including residential, commercial and industrial users, per day by the total service area population, and is typically expressed as gallons per capita per day (GPCD). Total per capita water use has averaged 109 GPCD over the last eleven years. Data on residential water use was provided for 1991 through 1998. The residential per capita water consumption rate is calculated by dividing the average residential daily water consumption by the total number of residents. It has averaged 78 GPCD during this period. These levels of water consumption fall within the range normally expected for residential water use. 805230) \WSP 3 A.3. Water Demand by Customer Category Past annual water sales data provided by JWC member cities were broken down into several customer categories including residential, commercial and industrial. The water sales records for each city, as well as totals for the JWC are shown in Tables 1 -3, 1 -4, 1 -5, and 1 -6. Data showing water sales by customer categories for the individual cities was available for 1993 through 1998. The available data indicates that residential water use has been the largest demand category in the JWC, averaging 93 percent of total water use in Crystal, 65 percent in Golden Valley and 78 percent in New Hope. Commercial and industrial water use combined has averaged 7 percent of total water use in Crystal, 35 percent in Golden Valley and 22 percent in New Hope. Total water use for the JWC has averaged 75 percent residential, 22 percent commercial and three percent industrial. As in all water systems, some of the water produced is never purchased by water system customers. The difference between the water produced and the water sold is referred to as unaccounted -for water use. It can result from many factors including unidentified leaks in th distribution system, watermain breaks, periodic fire hydrant flushing, unmetered hockey rink flooding, tank drainage for maintenance purposes, unauthorized use, unmetered services, and inaccurate meters. Unaccounted -for water use below 10 percent can be usually explained by normal system leakage and meter inaccuracies and is considered acceptable. Unaccounted -for water use for the JWC is estimated by comparing the average annual water purchased from the City of Minneapolis with the average annual metered consumption of the JWC customers and is shown in Table 1 -7. The unaccounted -for water use has ranged from zero to five percent of the total water purchased from Minneapolis, which is below the national average of seven percent. The JWC splits the unaccounted -for water among the three cities based on water use. The JWC has seen inconsistencies in the water loss data between 1988 and 1998. In 1989 the volume of water purchased from Minneapolis was actually lower than the volume of water billed to the customers and resulted in a negative value for the unaccounted -for water use. Extremely low values for unaccounted -for water were also measured in 1988 and 1993. These inconsistencies are likely due to inaccurate water meters. Crystal, Golden Valley and New Hope are currently replacing customer water meters to more accurately measure water use and improve the measurement of unaccounted -for water use. The JWC should also work with the City of Minneapolis to have the meters at their systems' interconnections calibrated regularly. A.4. Large Volume Customers High volume users are defined as water customers that use more than five percent of the total water consumption. There are currently no high volume water consumers in the JWC water service area. A.5. Seasonal and Peak Water Demands Table 1 -8 presents seasonal water demands from 1988 through 1998. Demands from January and July of each year were used as estimates of winter and summer water use, respectively. As shown in the table, summer use has averaged 150 percent of winter use. High summer water use is due to a seasonal increase in non - essential water uses such as lawn and garden watering and recreational uses. Monthly water use data is included in Appendix B. Monthly demands separated by customer category are not available. 805230J\WSP 4 Peak day demands, and peak day to average day ratios are listed in Table 1 -9. The record peak demand was 25.95 MGD and occurred on June 13, 1988. Peak day to average day ratios have ranged from 1.49 to 2.71 and have averaged 2.18. �., AaA B.1. Water Treatment Plant Capacity The JWC currently purchases treated potable water from the City of Minneapolis and does not have a water treatment plant. As the supplier of the treated water, it is Minneapolis' responsibility to deliver water to the JWC that meets Primary Drinking Water Standards. Current water treatment in the Minneapolis water treatment plant consists of lime softening, filtration, fluoridation, and chlorination. B.2. Storage Capacity The JWC water system operates as one pressure zone. Storage in the system is provided by five ground storage reservoirs and three elevated water tanks. The locations of the reservoirs, storage tanks and interconnections are shown in Figure 1 -1. The Golden Valley ground reservoir system consists of two 4.5 million- gallon (MG) tanks. The reservoirs typically receive water from the City of Minneapolis during the night between 11 p.m. and 6 a.m. Water from the reservoirs is then pumped into the distribution system by five vertical turbine pumps, each with a rated capacity of 4,000 gallons per minute (gpm). The Crystal ground reservoir system consists of two 4.5 -MG tanks and one 10 -MG tank located just north of the Crystal Utility Department. Similarly, Minneapolis water typically fills the reservoirs between 11 p.m. and 6 a.m. There are five vertical turbine pumps in the booster station; each rated at 4,500 gpm. The JWC water system has three elevated water tanks, one in Golden Valley and two in New Hope. These tanks offer a total of 3.5 million - gallon storage capacity for the system and are used to store water during the low demand period and release water during high demand periods, fire events, or emergency situations. With an interruption of the Minneapolis water supply, there is a maximum of 31.5 million gallons of water reserve in the five ground reservoirs and three elevated water tanks, assuming all the reservoirs and elevated water tanks are full when the supply is interrupted. This water reserve could continue to support the average day demand of the entire system for over four days. To date, storage has been adequate to meet all demands. Elevated water tanks have a daily mission of storing water when the system demand is low and releasing water back to the system when the demand exceeds the pumping capacity. Ground storage reservoirs do not have this function because water in ground reservoirs must be pumped for use. The role of elevated water tanks becomes particularly important during the maximum day when the peak domestic demand and the fire demand must be provided simultaneously. 805230J\WSP 5 C. SOURCE OF WATER SUPPLY The JWC currently purchases treated potable water from the City of Minneapolis and has no wells or surface water intakes. The JWC water system receives all of its water through metered interconnections with the Minneapolis system. The City of Minneapolis takes water from the Mississippi River at a structure located in the City of Fridley. From there, the water is conveyed to water treatment facilities where it is treated to potable standards. It is distributed to the Minneapolis service area and surrounding suburbs including Crystal, Golden Valley, and New Hope. The adequacy of the source of water supply to meet future system demand is discussed in the next section. D. ADEQUACY OF SYSTEM TO SUPPLY DEMAND D.I. Historic Water Level The JWC currently purchases treated water from the City of Minneapolis and has no production wells or surface water intakes. Historic water level data is not applicable to JWC water system. The DNR and the Metropolitan Council should refer to the City of Minneapolis Water Supply Plan for this information. D.2. Adequacy of the Resource to Sustain Current and Projected Demands The JWC currently purchases treated water from the City of Minneapolis, which uses surface water from the Mississippi River as its raw water source. The JWC does not have any data to determine the adequacy of the Mississippi River to sustain current and projected demands. The DNR and the Metropolitan Council should refer to the City of Minneapolis Water Supply Plan for this information. D.3. Adequacy of the Existing Water System to Sustain Current and Projected Demands In order to evaluate the existing system's ability to meet future water demands, water use projections for each city, and for the JWC as a whole were computed. Projections are based on growth projections, Metropolitan Council's population projections and water use trends observed over the past ten years. D.3.1. Projected Growth The Cities of Crystal, Golden Valley, and New Hope are among the first tier suburbs of the Minneapolis area. During the 1950's and 1960's, population in these Cities exploded rapidly due to the post -war housing boom. By 1970, the development in the Cities essentially grew to saturation. Since then, population has declined, attributable to shrinking household or family size, caused, most likely, by children growing up and leaving home. There are only a very few vacant parcels scattered throughout the planning area that are suitable for development. It is anticipated that the development of remaining vacant land will not significantly impact the Cities' population unless a major redevelopment should occur. 805230J \W S P 6 The Metropolitan Council's population projection does not take into account the population increase due to large scale redevelopment, such as the Crystal Municipal Airport redevelopment. As stated in the Crystal Comprehensive Plan, when the State Legislature eventually recognizes the importance of redevelopment, tax increment financing will be resurrected or a new tool will be created in its place to provide for the locally determined replacement of obsolete land uses. When that time arrives, the City of Crystal intends to facilitate the redevelopment of the airport site. In the City of Golden Valley, several redevelopment projects have been planned. Due to the size of the redevelopment sites, these projects are not expected to have a significant impact on the City's population and water consumption rate. The City of New Hope currently has no redevelopment plans. Although there are some undeveloped lots scattered around the City which are zoned for industrial, commercial, and residential development, these developments are small scale and their population increase have been included in the population projection by Metropolitan Council. D.3.2. Projected Demand The water use projections are based on the following assumptions: • Population will stabilize based on the Metropolitan Council's population projections; • Per capita consumption will be reduced as the result of water conservation to 104 gpcd by 2010. It will be reduced to 100 gpcd by 2020; • Maximum day to average day water demand is assumed to be 2.40 and will decrease to 2.0 by the year 2020; • The ratio of peak hourly water demand to maximum daily water demand will be no greater than 2.0. While per capita use in 1988 and 1989 reached over 130 gpcd due to the drought conditions, the average per capita water use over the last eleven years has averaged 109 gpcd. Excluding data from 1988 and 1989 and 1993, which was an exceptionally low demand year, per capita water use averages 104 gpcd. The JWC has seen per capita water use range between 93 and 106 gpcd over the last seven years. Because Crystal, Golden Valley and New Hope have ordinances which have called for restriction in water use only when the City of Minneapolis has restricted water use, the data from the past ten years reflects unrestricted water demands. There were very few water conservation policies in place in 1988 and 1989, which resulted in unrestricted water use. It is unlikely that demands in the Metropolitan area will reach these levels in the future, as cities have begun to implement water conservation plans to avoid high water demand situations similar to 1988 and 1989. Assuming that effective water conservation policies are adopted by Minneapolis, Crystal, Golden Valley and New Hope, per capita water use can be reduced from 108 gpcd in 2000 to 104 gpcd in 2010 and to 100 gpcd by 2020. Peak day demands from 1988 through 1997 were used to develop peak day to average day ratios for future years. The ratios have averaged 2.18 and have ranged from 1.49 in 1993 to 2.71 in 1988. Peak day demands in the JWC have all occurred during the summer. Because the JWC water use shows great seasonal variability (shown in Table 1 -8), reducing seasonal use and the corresponding peak day demands will be a target of the JWC conservation plan. Projected peak day to average day ratios are projected to be 2.4 in 2000 and can be reduced to 2.0 by 2020. 805230J \W S P 7 Tables 1 -10, 1 -11, and 1 -12 present the projected water demand in the Crystal, Golden Valley and New Hope for the next twenty years. Table 1 -13 presents the aggregate total water use projections for the JWC. To check the adequacy of the existing system to meet the projected demands, the storage and pumping capacity were analyzed. Table 1 -14 provides a summary of the capacity of the water supply components of the water system. As shown in Table 1 -13, average demand is expected to be 7.28 MGD and projected maximum day demand is expected to reach 17.47 MGD in the year 2000. The year 2000 demand projections were used to evaluate the existing system's storage and pumping capacity to meet demands because they are greater than the projections for future years. D.3.3. Storage The existing storage must be able to meet peak domestic demand and the fire demand simultaneously. Because Minneapolis provides water to the JWC between 11 p.m. and 6 a.m., the JWC must supply all demand from storage during off - delivery times. The Insurance Services Office (ISO) recommends that the JWC be able to supply a 3,500 gpm fire flow for three hours (0.63 MG). Therefore, a maximum day demand with a fire condition requires 18.1 MG of water. The JWC's total storage capacity of 31.5 MG is sufficient to meet the maximum day plus fire flow condition. D.3.4. Pumping Capacity In addition to having sufficient storage capacity, there must also be sufficient pumping capacity to meet the peak hour demand. Although peak hour data was not available, the peak hour demand was estimated using a peak hour to maximum day ratio of 2.0. This is a value commonly used for design purposes. Using 2.0 times the maximum day demand of 17.47 results in a required pumping capacity of 34.94 MGD. The JWC's firm pumping capacity of 49 MGD is more than adequate to meet peak hour pumping capacity requirements, even with fire flow requirements taken into consideration. Therefore, the existing pumping capacities are adequate to meet the projected demand. D.4. Plans to Expand or Modify the System Since the current water system is adequate to provide both storage and firm pumping capacities during maximum day demand through 2020, the JWC has no current plans and does not anticipate any future plans to expand or modify the system. Repair and replacement of worn equipment will take place on a regular schedule and on an as- needed basis. 805230) \W5P 8 E. SUMMARY OF DATA The service population and the water use have both remained relatively stable over the last seven years, following the high water use associated with the drought in 1988 and 1989. A significant increase in water demand in summer months over that in winter months, has been observed indicating that much of the excess water use is due to seasonal lawn and garden watering and recreational uses. Per capita water use falls within the range normally expected for residential water use. Population is expected to increase only slightly over the next twenty years as development in Crystal, Golden Valley and New Hope has reached near capacity. The implementation of an effective conservation plan is anticipated to reduce average per capita water use by eight percent and reduce the peak day volume by over 3.0 MGD by 2020. Based on the demand projections for 2000 through 2020, the existing water supply is adequate to meet the water demands through 2020. 805230J \WSP 9 data table) -t 10 TABLE 1 -2 PER CAPITA WATER USE Year Population Total Water Sold, gallons Residential Water Sold, g allons Residential GPCD Total GPCD 1988 66,958 3,462,008,996 - - 141.7 1989 67,454 3,222,488,552 - - 130.9 1990 67,454 2,586,488,564 - - 105.1 1991 66,595 2,499,960,732 1,680,. 000,000 69.1 102.8 1992 66,602 2,566,211,016 1,914,00,000 78.7 105.6 1993 66,679 2,271,194,902 1,758,000,000 72.2 93.3 1994 66,383 2,465,099,116 1,880,000,000 77.6 101.7 1995 66,232 2,486,103,080 1,964,884,363 81.3 102.8 1996 66,174 2 2,131,715,504 88.3 110.9 1997 66,064 2,429,713,639 1,814,593,186 75.3 100.8 1998 66,288 2,534,433,352 1,956,908,870 80.9 104.7 Average 77.9 1 09. 1 * Residential includes residential, apartment, and mobile home park data 11 tables -2 TABLE 1 -3 ANNUAL WATER SALES City of Crystal Year Water Sold, gallons Residential Commercial Industrial Total 1988 - - - 986,901,496 1989 - - - 882, 646, 752 1990 - - - 771, 526, 864 1991 - - - 736,102,332 1992 - - - 768,889,416 1993 540, 000, 000 105, 000, 000 18, 000, 000 673, 771, 472 1994 596, 000, 000 100, 000, 000 26, 000, 000 712, 883, 916 1995 699,496,663 7,570,959 498,708 707,566,330 1996 809, 951, 604 8,764,316 577,456 781, 884, 819 1997 1 695,210,386 7,497,204 1,023,264 711,134,639 1998 1733,722,170 628,422,000 12,369,670 13,523,840 732,291,252 TABLE 1 -4 ANNUAL WATER SALES City of Golden Valley Year Water Sold, gallons Residential Commercial Industrial Total 1988 - - - 1, 359, 829, 000 1989 - - - 1,399,158,000 1990 - - - 982,991,000 1991 - - - 972,259,000 1992 - - - 982,270,000 1993 605,000,000 253,000,000 79,000,000 849,678,000 1994 642, 000, 000 313, 000, 000 85, 000, 000 956, 253, 000 1995 607, 843, 000 246,193, 000 58, 932, 000 1, 001, 291, 000 1996 683,560,000 266,951,000 59,075,000 1,052,483,710 1997 539, 374, 000 258, 916, 000 58, 062, 000 946,184, 000 1998 628,422,000 267,208,000 67,308,000 985,447,000 data tabiei -3 12 TABLE 1 -5 ANNUAL WATER SALES City of New Hope Year Water Sold, gallons Residential Commercial Industrial Total 1988 - - - 1,115,278, 500 1989 - - - 940,683,800 1990 - - - 831, 970, 700 1991 - - - 791, 599, 400 1992 - - - 815,051,600 1993 613,000,000 135,000,000 - 747,745,430 1994 642,000,000 146,000,000 - 795,962,200 1995 657,544,700 165,768,000 16,576,800 777,245,750 1996 638,203,900 169,747,800 21,223,900 843,159,000 1997 580,008,800 160,839,400 21,289,400 772,395,000 1998 594,764,700 187,448,200 23,647,200 816,695,100 TABLE 1 -6 ANNUAL WATER SALES JOINT WATER COMMISSION Year Water Sold, gallons Residential Commercial Industrial Total 1988 - - - 3,462,008,996 1989 - - - 3,222,488,552 1990 - - - 2 1991 1, 680, 000, 000 737, 000, 000 - 2, 499, 960, 732 1992 1, 914, 000, 000 842, 000, 000 - 2,566,211,016 1993 1, 758, 000, 000 493, 000, 000 97, 000, 000 2,271,194, 902 1994 1, 880, 000, 000 559, 000, 000 111, 000, 000 2, 465, 099,116 1995 1, 964, 884, 363 419, 531, 959 76, 007, 508 2,486,103,080 1996 2,131,715,504 445,463,116 80,876,356 2,677,527,529 1997 1,814,593,186 427,252,604 80,374,664 2,429,713,639 1998 1,956,908,870 1 467,025,870 104,479,040 2,534,433,352 data 13 table) -5 TABLE 1 -7 UNACCOUNTED -FOR WATER USE Year Total Water Sold, gallons Total Water Purchased from Minneapolis, gallons Unaccounted - for Water % of Unacounted - for Water 1988 3,462,008,996 3,491,920,564 29,911,568 0.9% 1989 3,222,488,552 2,878,397,776 (344,090,776 ) -12.0% 1990 2,586,488,564 2,684,488,224 97,999,660 3.7% 1991 2, 499, 960, 732 2, 555, 530, 032 55, 569, 300 2.2% 1992 2,566,211,016 2,623,759,600 57,548,584 2.2% 1993 2,271,194,902 2,288,972,776 17,777,874 0.8% 1994 2,465,099,116 2,551,707,084 86,607,968 3.4% 1995 2,486,103,080 2,613,345,920 127,242,840 4.9% 1996 2,677,527,529 2,745,676,868 68,149,339 2.5% 1997 2,429,713,639 2,552,429,636 122,715,997 4.8% 1998 2,534,433,352 2,780,344,424 245,911,072 8.8% Average 3.4% data tabiei -7 14 TABLE 1-8 SEASONAL WATER USE Year Average Day Pumpage (MG) July to January Ratio January July 1988 6.66 15.17 2.28 1989 6.62 12.45 1.88 1990 5.98 8.35 1.40 1991 6.36 8.75 1.38 1992 5.79 8.83 1.53 1993 5.79 6.28 1.08 1994 5.75 8.10 1.41 1995 5.95 7.46 1.25 1996 5.76 7.90 1.37 1997 5.76 8.58 1.49 1998 5.77 7.92 1.37 A erage 1997 June 11 1.49 TABLE 1-9 PEAK DAY DEMANDS Year Peak Day Date Peak Day Pumpage (MG) Average Day Pumpage (MG) Ratio of Peak Day to Average Day 1988 Jun 13 25.95 9.57 2.71 1989 Jul 17 15.14 7.89 1.92 1990 Aug 16 14.20 7.35 1.93 1991 July 29 15.00 7.00 2.14 1992 Jun 12 17.20 7.19 2.39 1993 Jul 30 9.32 6.27 1.49 1994 Jul 2 14.55 6.99 2.08 1995 June 22 16.93 7.16 2.37 1996 July 23 16.53 7.52 2.20 1997 June 11 17.78 6.99 2.54 Average 2.18 data 15 tablel-8 TABLE 1-10 PROJECTED WATER DEMAND CITY OF CRYSTAL Projected Projected Projected Projected Year Population per Capita Average Peak to Maximum Served Use Day Use Average Day Use (GPCD) (MG) Day Ratio (MG� 2000 23,900 108 2.58 2.40 6.19 2005 23,850 106 2.53 2.30 5.81 2010 23,800 104 2.48 2.20 5.45 2015 24,350 102 2.48 2.10 5.22 2020 J 24,900 100 2.49 2.00 4.98 TABLE 1-11 PROJECTED WATER DEMAND CITY OF GOLDEN VALLEY Projected Projected Projected Projected Year Population per Capita Average Peak to Maximum Served Use Day Use Average Day Use (GPCD) (MG) Day Ra (MG) 2000 21,700 108 2.34 2.40 5.62 2005 22,100 106 2.34 2.30 5.39 2010 22,500 104 2.34 2.20 5.15 2015 22,700 102 2.32 2.10 4.86 2020 22,900 100 2.29 2.00 4.58 TABLE 1-12 PROJECTED WATER DEMAND CITY OF NEW HOPE Projected Projected Projected Projected Year Population per Capita Average Peak to Maximum Served Use Day Use Average Day Use (GPCD) (MG) Day Ratio (MG) 2000 21,800 108 2.35 2.40 5.65 2005 21,800 106 2.31 2.30 5.31 2010 21,800 104 2.27 210 4.99 2015 22,250 102 2.27 2.10 4.77 2020 22,700 100 2.27 2.00 4.54 data Tablel-10 16 TABLE 1-13 PROJECTED WATER DEMAND JOINT WATER COMMISSION Total Pumping Capacity 61.2 Projected Projected Projected Projected Year Population per Capita Average Peak to Maximum Served Use Day Use Average Day Use (GPCD) (MG) Day Ratio (MG) 2000 67,400 108 7.28 2.40 17.47 2005 67,750 106 7.18 2.30 16.52 2010 68,100 104 7.08 2.20 15.58 2015 69,300 102 7.07 2.10 14.84 2020 70,500 100 7.05 2.00 14.10 TABLE 1-14 WATER SUPPLY SYSTEM CAPACITY Water Supply System Capacity (MGD) Total Pumping Capacity 61.2 ,Firm Pumping Capacity 49.0 . Ground Reservoir System 28.0 JElevated T Storage Volume 3.5 Firm Pumping Capacity = Pumping capacity when largest pump is out of service data 17 Table) -13 PART II. EMERGENCY PLAN FOR PUBLIC WATER SYSTEM INTRODUCTION The purpose of the Emergency (contingency) Plan is to increase emergency preparedness and to provide the Joint Water Commission (JWC) with a course of action to follow during conditions that require a curtailment of water service. Potential situations that could reduce water service include natural disasters such as drought, flood or tornado, contamination of the Mississippi River, or operational difficulties with JWC or Minneapolis treatment or distribution systems. The Emergency Plan for the public water system should be incorporated into an overall Emergency Plan for each of the member Cities, which would also include the areas of electrical power, police, and fire departments. The plan should also be closely coordinated with the City of Minneapolis. A. EMERGENCY TELEPHONE LIST In the event of an emergency condition, it is critical that the appropriate individuals and agencies are contacted. Emergency Telephone Lists, Table II -1 and II -2, have been created which list all city staff, including representatives from Minneapolis, and various agency contacts that would need to be contacted in the event of a water related emergency. The telephone lists should be posted conspicuously at all key locations within the water supply and distribution system. Table II -3 presents the individuals from the JWC member cities and the City of Minneapolis who are part of the Emergency Event Evaluation Team. The table lists their emergency assignments, and which agencies they are responsible for contacting in the event of an emergency. During an emergency condition, all available members of the Emergency Event Evaluation Team will evaluate the condition, contact the appropriate agencies and determine the best response to the emergency condition. All of these tables should be reviewed and updated yearly by the JWC. Joint Water Commission and member city staff receiving phone calls from outside need to be trained to collect all necessary information when an individual contacts the JWC to report an emergency condition. In addition, the JWC should have an emergency response form that is available to staff and operators. This form would ensure that all critical information is reported. Some items to be considered in the emergency form include the following: 1. Name, phone number, and address of individual reporting the emergency. 2. City staff member who took down the information, date and time emergency was reported. 3. Where is the emergency site; address or approximate location 4. A brief description of the emergency. 5. Any conditions at site of which emergency staff should be aware? 6. Who else has been contacted regarding this emergency condition? Are these individuals taking any type of action (such as calling other communities or agencies)? 7. Is there currently any emergency personnel on site? 18 Rnsinn.nwsp 8. Any other critical information? Table II -5 lists items that need to be considered in the emergency form B. CURRENT WATER SOURCES AND SERVICE AREA The cities of Crystal, Golden Valley, and New Hope share a water system, operated by the Joint Water Commission (JWC). The system serves a population of 66,000. The JWC purchases treated water from the City of Minneapolis, supplied through two metered connections with the Minneapolis system. The JWC system provides 3.5 million gallons of elevated storage and 28.0 million gallons of ground storage, which is pumped into the system by booster stations located in Crystal and Golden Valley. A map of the JWC water system is included as Figure 1 -1. C. PROCEDURE FOR AUGMENTING WATER SUPPLIES Potential sources of water that can be used to augment or replace existing sources have been examined and are presented below. C.1. Interconnect with Adjacent Communities As discussed in Part I, the JWC receives their water from the Minneapolis Water Works. There are two separate connections, a 36 -inch connection in Crystal and a 48 -inch connection in Golden Valley. The JWC has no interconnections with any adjacent communities other than the Minneapolis connections. Although the contract with Minneapolis limits the JWC from contracting for water from other suppliers, they are currently investigating an interconnection with Saint Louis Park. The interconnection with Saint Louis Park is listed in the Capital Improvements Plan for 2000. To minimize the effect of a possible interruption of water supply due to a spill in the Mississippi River, the Joint Water Commission is considering installation of a 16 -inch diameter emergency interconnection with the City of St. Louis Park. St. Louis Park does not have adequate water supply capacity to meet both their own maximum day needs and the JWC's maximum day needs. On a maximum day condition, St. Louis Park could be able to provide the Joint Water Commission with up to 3 MGD with their current system. However, St. Louis Park should be able to provide the Joint Water Commission's average day demand if the water emergency should occur during a normal demand period. Based on conversations with surrounding communities, the Cities of Brooklyn Park, and Plymouth are also interested in interconnections with the JWC system. Both of these water systems have sufficient excess capacity during average demand conditions and Brooklyn Park has excess capacity during maximum day conditions. CA.a. Name of interconnecting water systems that supply water to your system As mentioned above, the City of Minneapolis is the JWC's sole source of supply. There are currently no other communities interconnected with the JWC. An emergency interconnection with St. Louis Park is planned for 2000. CA.b. Water which you provide to interconnected systems The JWC does not provide water to any other water systems. With the installation of an emergency interconnection with Saint Louis Park, the JWC will have the ability to provide water to Saint Louis Park during an emergency condition. 19 An5 ?3nJ \WSP CA.c. Private Water Sources Connecting to private wells requires that the private well owner have sufficient extra capacity to provide water to the JWC. Two companies, General Mills and Honeywell, have wells with sufficient capacity that could be used by the JWC. General Mills Wells General Mills has two different locations in Golden Valley, the Main Campus and the James Ford Bell Technical Center. Both locations were contacted for this study. General Mills is interested in connecting to the JWC system as a potential reserve supplier. The Main Campus has four wells; two 1,000 gpm wells for domestic supply (one is a backup), and two 800 gpm wells for cooling (one is a backup). According to General Mills, only 1,000 gpm could be used by the JWC on a continuous basis. This water is becoming available because the Minnesota Department of Natural Resources is requiring that General Mills eliminate their once - through cooling process by the year 2000. At that time, General Mills plans on having modified their cooling system to a closed loop system which will allow 1000 gpm to be available for use by the JWC. The James Ford Bell (JFB) Technical Center has three wells with a combined capacity of more than 3,000 gpm. Of the three wells, there is one well for domestic supply, one for cooling, and one for backup. The JFB Technical Center is also changing their cooling process so that the cooling well is no longer required. The cooling well would be able to provide approximately 1,000 gpm. There is a 12 -inch connection between the General Mills Main Campus and the JWC distribution system in Golden Valley. This connection is valved -off and is only set up for flow from JWC to General Mills. The General Mills water system uses chlorination and fluoridation for their potable water. The Generals Mills water supply is suitable as an emergency water source but would not be suitable for normal daily use without water treatment. This is due to the fact that the JWC customers are used to treated water (including softening) from Minneapolis and it is likely that well water would not be acceptable to the JWC customers during normal operation. The JWC is considering a 16 -inch connection to General Mills' James Ford Bell Research Center but does not have any current plans to go ahead with the interconnection. Honeywell Wells Honeywell has two wells with a total capacity of 2,000 gpm in their Golden Valley headquarters. These wells are used for industrial processing, once - through air conditioning, and domestic usage. Due to the limited well capacity there is no excess capacity available for use by the JWC. An interconnection with Honeywell would only be available for use during a severe emergency because of the limited well capacity. Therefore the limited benefits of the interconnection may not offset the costs of the interconnection. 20 sus ?,in. m.s p C.2. Conjunctive Use of Surface and Groundwaters The JWC currently relies on surface water from the Mississippi River that has been treated and conveyed to the JWC by the City of Minneapolis. The interconnection with St. Louis Park would provide the JWC with a groundwater source that could be used in the event of an emergency, or if the Mississippi River or Minneapolis system were unavailable to the JWC. Currently there are no plans to use the St. Louis Park connection for anything other than an emergency source of supply. The JWC does not plan on using the St. Louis Park connection for normal operating, in part because of the water quality differences between the Minneapolis and St. Louis Park waters and because the current contract with Minneapolis prevents the JWC from contracting with other systems for water supply. Blending the two would likely result in water quality complaints which would be acceptable only during emergency conditions. C.3. Alternative Sources of Water Currently, there are no alternative sources of water available for the JWC. The JWC understands the risk that elimination of the Mississippi River poses to the water supply. The JWC is currently working on a study with Barr Engineering to evaluate options for an alternative water source that would supply the system in the event the Mississippi River, or the Minneapolis system is not available as a water source. The JWC has discussed both drought conditions and river water contamination as different water shortage situations. In the event of a drought, it is likely that the Mississippi River would be maintained as a viable source through river controls upstream of the Twin Cities. The JWC would initiate demand reduction measures to reduce river withdrawals in this case. Contamination of the Mississippi River presents a different emergency situation. In this case, it would be favorable to have interconnections with water suppliers that provide water from an alternate source. In pursuing interconnections with the City of St. Louis Park and General Mills, the JWC is not only increasing their potential water supply, but is varying the source. While mixing groundwater and surface water can produce water that is aesthetically unpleasant, this would be an acceptable practice in an emergency situation. In the ultimate situation, the Department of Public Safety - Emergency Management Division would be contacted for community disaster assistance. It is likely that, at this stage, the National Guard would either supply water by truck or provide portable water treatment plants. The JWC plans to further develop emergency strategies as part of the contract negotiations with Minneapolis. D. DEMAND REDUCTION MEASURES D.1. Demand Reduction Potential Minnesota Statutes 103G.261 establishes priorities for water allocation during periods of limited water supply. These definitions of the are included in Part II.E. Based on the priorities described in Part II.E., much of the water use in the JWC is considered first priority or typically residential water use. Commercial and industrial users that consume less than 10,000 gallons per day are considered second priority users. The JWC has no 3rd, or 4th priority water use. Commercial and industrial users who use more than 10,000 gallons per day are considered fifth priority users. Sixth priority includes non - essential water uses such as lawn sprinkling, vehicle washing, and golf course and park irrigation. 21 8n.92mjwsP Limited data is available to allocate water use by statutory priority but estimates were made using 1994 water use data to produce the following table. Demand Priority Estimated Demand (MGD) Cumulative Demand (MGD) 1 5.197 5.197 2 0.918 6.115 3 0.000 6.115 4 0.000 6.115 5 0.918 7.033 6 0.370 7.403 To estimate the first priority domestic demand, residential water use from 1994 was used. The annual residential water use was divided by 365 days to get the estimated average day domestic use of 5.197 MGD. The non - essential water use included in this estimate should be compensated for by the domestic use that occurs in the other customer categories. Combined commercial and industrial uses were split among second and fifth priority categories. Sixth priority water use which represents lawn sprinkling and unaccounted -for water use was determined based on the difference between the total water pumped and the cumulative demand of 1st through 5th priority water use. These are close estimates considering monthly or seasonal data by customer category was not available. Water use in the JWC increases by fifty percent during the summer months. High summer water use and peak day demands are mostly a result of sixth priority water use, such as lawn and garden watering, vehicle washing and other recreational uses. The best potential for short -term reductions in demand is associated with reducing these non - essential summer uses. This can be accomplished through limiting or banning sprinkling and vehicle washing. Options for long- term reductions in demand are presented in Part III (Conservation Plan). Most of the industrial users have minimal potential for short -term demand reduction. A reduction in short -term demand at the industrial plants would typically affect the plant process. The best potential for reduction in industrial use is through long -term reductions by increasing water efficiencies at the industrial plants. D.2. Short -Term Demand Reduction Procedures In the event that a short -term demand reduction is deemed necessary, the JWC's Emergency Event Evaluation Team would meet and decide what measures to take. Following is a list of potential reduction measures. 22 805930.AW S P Stage 1 : Voluntary Reduction Measures: Contact the media including local television, radio stations and newspapers and issue a notice to the member Cities that there is an imminent water shortage and request a voluntary water reduction from residents. Voluntary reduction measures would include odd /even sprinkling during the summer, or during the winter it would include minimizing bath use, reducing shower length, and other measures to reduce interior water use, mainly among domestic users. The impacts of voluntary reductions in water use are difficult to determine, as data from conservation and non - conservation periods are not available. The amount saved will likely be minimal in the first years of use before public education efforts are realized. An average reduction in per capita use of 1 gallon per day would reduce demand by 0.07 MGD (one - percent of total daily demand). Stage 2: Mandatory Sprinkling Bans: Implement a total sprinkling ban in an extreme emergency. The sprinkling ban ordinance makes violation of the sprinkling ban a petty misdemeanor. Customers that violate the sprinkling ban can be written a citation by a City police officer. People that do not pay their citations can be held in contempt of court. Theoretically, the sprinkling ban should nearly eliminate sixth priority use which was estimated as 0.37 MGD (or five - percent of the total daily water demand) based on 1994 water use data. Stage 3: Mandatory Water Allocation Restrictions: Based on the length and severity of the emergency conditions, water use should be decreased based on the priorities defined in Part II. E. Based on 1994 water use data, elimination of sixth priority uses will reduce water demand by 0.37 MGD (five - percent of total water demand). Second and fifth priority uses account for 25- percent of the total water use. Reductions in second and fifth priority uses of ten - percent combined with elimination of sixth priority water uses would reduce total daily demand to 6.85 MGD, a reduction of almost eight percent. The following procedure for water allocation is recommended by Minnesota Statute 103G.261. First Priority Domestic water supply, excluding industrial and commercial uses of municipal water supply, and use for power production that meets contingency requirements. According to MN Rules 6115.0630, Subp. 9, domestic use is defined as use for general household purposes for human needs such as cooking, cleaning, drinking, washing, and waste disposal, and for on -farm livestock watering excluding commercial livestock operations which use more than 10,000 gallons per day. Second Priority Water uses involving consumption of less than 10,000 gallons per day. Third Priority Agricultural irrigation and processing of agricultural products. Fourth Priority Power production in excess of the use provided for in the contingency plan under first priority. Fifth Priority Uses, other than agricultural irrigation, processing of agricultural products, and power production. Sixth Priority Non - essential uses. These uses are defined by Minnesota Statutes 103G.291 as lawn sprinkling, vehicle washing, golf course and park irrigation, and other non- essential uses. 23 sns93n msp Allocation procedures should distribute water equitably within each water use priority and customer category. Non - essential uses of water are the lowest use priority and will be the first water use subject to allocation restrictions. Quick responses to restrict non - essential uses of water during periods of limited supplies will help protect domestic and economic uses of water. Water used for human needs at hospitals, nursing homes, and similar types of facilities should be designated as high priority to be maintained in an emergency. Local water allocation will need to address water used for other human needs at other types of facilities such as hotels, office buildings, and manufacturing plants. Domestic use must have priority over economic needs. The JWC plans to inform all water customers of their water allocation priority classification, and provide them with information on potential demand reduction procedures. F. TRIGGERS FOR IMPLEMENTING PLAN COMPONENTS An important part of reducing short -term demand is establishing triggers for implementing the various water reduction measures. However, the JWC is somewhat limited in its ability to implement demand reduction procedures due to restrictive language in their water supply contract with the City of Minneapolis, which is currently under negotiation. The result of their current negotiations will have a major impact on how the JWC operates in the future, including what demand reduction measures can be implemented. The JWC may also develop some of its own supply capabilities to meet peak demands, or provide emergency supply if the Minneapolis supply is not available. Once the Minneapolis contract issues are resolved, the JWC can update their Emergency Plan as it relates to water emergencies, backup supplies, emergency procedures, demand reduction regulations and enforcement. To establish triggers, the existing water sources were examined. The JWC is dependent on its storage reservoirs, pumping capacity, the connections with the Minneapolis distribution system and the Mississippi River source to meet the water demand of its customers. During an emergency condition, the JWC could get water from the City of Minneapolis, the proposed interconnect with Saint Louis Park, private wells, or under an extreme emergency, by bringing in portable water treatment plants to treat water from one of the local lakes or by bringing in bottled water. The JWC is also currently studying other alternative water sources to supplement supply and provide water if the Mississippi River was unavailable as a water source, and is purchasing a generator to supply emergency power to the pumping facilities in Golden Valley. The critical components of the JWC system are the total storage volume, operation of the ground storage pumping facilities and the availability of water from Minneapolis. Triggers for implementing short -term reduction measures are designed to reflect restrictions in these supply components due to high demand periods, equipment failure, or limited water source capacity. The triggers shown in Table II -4 are guidelines to be considered by the Emergency Evaluation Team in the event of an emergency condition that warrants a short-term reduction in demand. These triggers should be reviewed following contract negotiations with Minneapolis. The combined storage of 31.5 MG can provide more than four times the current average day demand of 6.66 MGD. During periods of limited supply from Minneapolis the system would have adequate storage to supply average day demand for four days, assuming the storage tanks were operating at full capacity, and that the pumping facilities were in service. Triggers are set to ask for voluntary water use reductions when storage falls below 12 MG. Mandatory reductions in non - essential uses will be implemented when demands cause storage to fall below 8 MG. Second and fifth priority water use will be constrained when demands cause storage to remain below 7 MG (one day of storage). 24 tins ?3n.imsp The total storage volume includes 28 MG of ground storage, and 3.5 MG of elevated storage. Reductions in firm pumping capacity due to power outages, or equipment failure would limit the system's ability to provide water, especially under peak day demands. Triggers have been established that reflect both situations. Water demands will approach firm pumping capacities under periods of high demands, and under average demands with reductions in pumping capacity. The JWC and the City of Minneapolis will need to coordinate closely in the event of a water supply shortage. Through the current contract negotiation with the City of Minneapolis, the JWC should determine the volume of water that would be available to the JWC system in an emergency situation. This information should be incorporated into the JWC's triggers and emergency plan. In the event of an long -term water shortage, such as contamination of the Mississippi River, the JWC would rely on the future interconnect with Saint Louis Park, or a connection to an alternative supply, which is currently being studied. G. ENFORCEMENT A critical factor in an effective reduction in short -term demand is enforcement. Police, City staff, and concerned citizens can provide monitoring to ensure that all residents are complying. Implementation of the demand reduction measures listed in the previous section is currently limited by the contract with the City of Minneapolis. As part of the contract negotiation, the JWC will clarify issues related to their ability to declare water emergencies independent of the City of Minneapolis. The JWC recognizes that it should adopt uniform regulations, enforcement procedures and penalties for non - compliance in all of its member cities. The cities should also coordinate with the City of Minneapolis to adopt similar regulations, but should plan to maintain the ability to include provisions specific to operation of the JWC system. Currently, Crystal and New Hope both have ordinances for controlling short -term water demand. Following is the portion of the New Hope City Code that relates to short-term water demand: 5.08 Water Sprinkling Ban 5.081 Purpose. The City Council has determined that in certain drought conditions it may become necessary for the protection of the health, welfare and safety of the citizens of New Hope to conserve the water supply of the City by imposing a water sprinkling ban on all residential, commercial and industrial lawn and garden vegetation. Also, New Hope's contract with the City of Minneapolis for the purchase of water requires the imposition of a water sprinkling ban at the direction of the City of Minneapolis. The purpose of this section is to set forth the nature and extent of the regulations controlling any sprinkling ban imposed by the Council. 5.082 Resolution Imposing Ban. All water sprinkling bans shall be imposed by adoption of a resolution at any regular or special meeting of the New Hope City Council. The resolution shall set forth the duration of the ban, whether the ban shall be partial or absolute, if a partial ban, whether it shall apply to lawns and boulevards only or also to gardens, new sod and /or new tree saplings, the days or schedule when sprinkling will be permitted under a partial ban, and any other regulations that the City Council deems reasonable and appropriate. Said ban shall become effective immediately upon the adoption of said resolution. 25 sn52in.imsp 5.083 Notice of Ban. The resolution imposing the sprinkling ban shall be published once in the official newspaper of the City, and conspicuously posted in four places throughout the City. Any deficiencies in this notice requirement shall invalidate the ban. 5.084 Enforcement. A violation of this section shall be a petty misdemeanor. However, a first offense shall not result in the issuance of a ticket. The owner, any occupant of legal age or party responsible for water billing shall be first issued a warning ticket upon the first violation of the water sprinkling ban. A warning letter mailed to the occupant of the property or the individual responsible for the water billing at the violating property shall satisfy the warning notice requirement of this section. Each act of violation and each day a violation occurs or continues constitutes a separate offense. Following is the portion of the Crystal City Code that relates to short -term water demand: 715.29 Restrictions against sprinkling; other limitations of water use Water customers and consumers are governed by the applicable regulations promulgated by the City of Minneapolis as to the limitations in the time and manner of using water and such other applicable regulations promulgated by the JWC affecting the preservation, regulations and protection of the water supply. If the City Council determined that a shortage of water supply threatens the City, the council may by resolution limit the times and hours during which water may be used for anything other than in home use during the period covered by the resolution. A daily penalty will be charged for this violation as provided in Appendix IV. Charges will be added to that person's next utility bill. The City of Golden Valley does not have any ordinances regulating water use. Based on the water supply contract with Minneapolis, during water supply shortages they implement water restrictions in accordance with Minneapolis' water restrictions. As stated earlier, the JWC plans to standardize water use regulations and enforcement procedures and penalties among all of the communities after renegotiating the water supply contract with the City of Minneapolis. H. WATER SUPPLY PROTECTION H.I. Analysis of Previous Supply Problems The JWC has not had any previous problems supplying the demand of its customers. Sprinkling bans have been implemented in the past to comply with the JWC's agreement to implement a ban when Minneapolis does. H.2. Wellhead Protection Since the JWC does not use groundwater as a water source, they will not be required by the Minnesota Department of Health to submit a Wellhead Protection Plan (WHP). 26 so.s2in.imsP H.3. Resource Monitoring The JWC obtains its water from the City of Minneapolis. Minneapolis uses the Mississippi River for its water source. The JWC does not have any information on water levels and withdrawals. It is recommended that the DNR and the Metropolitan Council refer to the Minneapolis Water Supply Plan for this information. 27 80521O.AWSP TABLE 11-1. EMERGENCY RESPONSE TELEPHONE LIST JOINT WATER COMMISSION STAFF Individual Title Work Phone Home Phone FAX Pager Mobile City of Crystal John Hill Utility Supt. 612 - 531 -1166 612- 533 -2663 612- 531 -1188 612 - 980 -5280 612 - 270 -2555 Tom Mathisen Dir. Pub. Works 612 -531 -1160 651- 777 -7180 612 - 531 -1188 612 - 235 -1500 612 - 750 -5566 Jerry Dulgar City Manager 612- 531 -1130 1 612 - 535 -7863 612 -531 -1188 - 612 - 210 -9059 City of Golden Valley Merlin Thorn Utility Supervisor 612- 593 -8075 612 -533 -6478 612- 593 -8109 - 612 - 599 -5927 Jeannine Clancy Dir. Pub. Works 612 - 593 -8035 612- 753 -6305 612- 593 -3988 612- 880 -8970 612 - 760 -4835 Bill Joynes City Manager 612 -593 -8003 612- 544 -2981 612- 593 -8109 612- 880 -2435 612 -860 -4950 City of New Hope Paul Coone Utility Supervisor 612 - 533 -4823 612- 427 -0419 612 -533 -7650 612 -650 -8253 612 - 910 -0236 Guy Johnson Dir. Pub. Works 612- 533 -4823 612 -472 -6461 612- 533 -7650 612 -660 -0987 612 - 910 -0237 Dan Donahue City Manager 612 - 531 -5112 612 -545 -3043 612- 531 -5136 1 612 -650 -8282 1 612 -910 -0239 TABLE II -2. EMERGENCY RESPONSE TELEPHONE LIST ADJACENT COMMUNITIES, STATE AND LOCAL AGENCIES Organization Contact Title Work Phone ADJACENT COMMUNITIES City of Minneapolis Yasser AbouAish Minneapolis Water Works 612- 661 -4195 City of St. Louis Park Scott Anderson Water Superintendent 612 -924 -2557 LOCAL AGENCIES Hennepin County Office of Environmental Preparedness (OEP) Notify for stage 3 reduction measures, and community -disaster assistance -- 612 -930 -2525 Metropolitan Council Gary Oberts Senior Planner 651- 291 -6484 MINNESOTA STATE AGENCIES Dept. of Health Bill Anderl District Engineer for the North District 651- 215 -0749 DNR Jim Japs -Metropolitan Coordinator, Water Ap- propriation Permit Program 651- 297 -2835 Dept. of Public Safety -- Minnesota Duty Officer 651- 649 -5451 28 8n9990.1\W SP F TABLE 11-3. EMERGENCY EVENT EVALUATION TEAM Person Assignment* Tom Mathisen — City of Crystal Contact — St. Louis Park Jeannine Clancy — City of Golden Valley Contact — DNR Guy Johnson — City of New Hope Contact — Department of Health Yasser AbouAish — City of Minneapolis Contact — Metropolitan Council ope(;mc, wiii oe aeterminea oy tne tt-t- i. TABLE 11-4. TRIGGERS TO REDUCE SHORT-TERM DEMAND Short-Term Reduction Measure Triggering Mechanism Stage 1 - Voluntary odd/even sprinkling ban When City of Minneapolis adopts Stage 1 (will reduce 6th priority water use). reduction measure, or When total storage volume drops below 12 MG, or When it is anticipated that demand will exceed 90% of firm pumping capacity Stage 2 - Mandatory sprinkling ban (will almost When City of Minneapolis adopts Stage 2 eliminate 6th priority water use). reduction measure, or When total storage volume drops below 8 MG, or When it is anticipated that demand will exceed 100% of firm pumping capacity Stage 3 - Mandatory water allocation When City of Minneapolis adopts Stage 3 restrictions — Eliminate 6th priority and reduction measure, or constrain 2nd through 5th priority When mandatory sprinkling ban does not water allocation. maintain storage levels above 7 MG, or When it is anticipated that demand will exceed 110% of firm pumping capacity. 29 8n59,.3n.j\w.,;P TABLE 11 -5. EMERGENCY REPORTING INSTRUCTION In the event of an emergency that appears to involve water service, please fill out the form below and contact the water system immediately. Telephone numbers appear at the bottom of this form. E 2. Person calling in emergency Telephone number Time call was received Address Location of emergency: Street and house /building number Other (approximate location, distance from landmark, etc.) 3. Condition at scene (check appropriate boxes) ❑ Escaping water: Seepage _Free-flowing _Gushing ❑ Flooding: _Roads _Intersections _Property _Buildings ❑ Erosion: Banks _Foundations ❑ Electrical Power: _Interruptions _Total loss of power ❑ Change in water quality: _Taste _Odor _Color _Clearness 4. Actual /potential damage: Briefly describe the situation 5. Access restrictions, if any 6. Assistance already available (who, what they are doing, etc.) EMERGENCY TELEPHONE NUMBERS Business Office Operations Control Center After hours service Signature of person who filled out form: 30 8fS97:in.imsp PART III. WATER CONSERVATION PLAN INTRODUCTION The purpose of the water conservation plan is to provide the water utility with a procedure for optimizing available water resources. Short-term water demand reductions can be accomplished by implementing the emergency procedures presented in Part 11. Long -term water conservation is an important part in managing available water resources. The member cities of the JWC intend to establish identical water conservation programs to decrease water consumption over the long term. A. ROLE OF CONSERVATION An effective conservation program will increase efficient water use, decrease water demand, and determine and address water loss and waste problems. By reducing the total water use and increasing the efficiency of water use, a water utility can often postpone development of new water facilities, and decrease operations costs such as energy (pumping) and chemical costs. B. WATER CONSERVATION POTENTIAL Each of the JWC's customer categories has been analyzed to determine the best potential for water conservation. Using the information from water use data presented in Section I., it was determined that water use has averaged around 75 percent residential, 22 percent commercial, and three percent industrial. Seasonal water use data indicates that summertime use increases to 150 percent of average winter use. The excess seasonal use will be a target of the JWC conservation plan. The residential customer category was selected as having the most potential for water conservation because of the total water volume used and the potential for reducing peak use. Commercial customers were selected as the customer category with the second highest potential for water conservation. Another potential area for water conservation is unaccounted -for water use. Watermain leaks, unmetered connections and fire department use all contribute to unaccounted for water. The total potential for unaccounted -for water use conservation is dependent on where the water is going. For example, there typically is little potential to reduce fire department use. Although the average volume of unaccounted -for water has been low, discrepancies exist in the data. There are years when more water was sold then introduced into the system. Planned meter replacements and regular calibration and maintenance programs will improve measurement of water use and help identify if there is water loss problem. The JWC plans to annually review the water billing versus water supplied information to monitor unaccounted for water use, which has not been accurately measured in the past. By the adoption of this plan, the JWC will set the following goal to reduce residential per capita water use. The City's ten -year goal will be to reduce residential per capita use 5.3 percent, from 75 gpcd to 71 gpcd. This will be accomplished through a customer education program, conservation ordinances, conservation- oriented water rates, a meter replacement program and efforts to increase the number of low -flow fixtures. 31 805230J\wsP C. WATER CONSERVATION PROGRAMS As previously mentioned, water conservation can be accomplished through short-term or long- term methods. The short-term methods were presented in Part II and will not be reiterated here. Long -term conservation is accomplished by improving water use efficiencies. Specific elements that should be considered in a long -term water conservation plan are: 1. Metering 2. Water Audits, Leak Detection, and Repair 3. Conservation - Oriented Water Rates 4. Regulation 5. Education and Information Programs 6. Retrofitting Programs 7. Pressure Reduction These seven items are discussed as they relate to the JWC. C.1. Metering All JWC customers are metered. City utility personnel go door -to -door to record meter readings from remote totalizers. The billing staff then records the meter reading into a billing software program. The billing staff reviews the meter readings for unusual readings as they enter the data. The City of Crystal checks meters during winter months when utility work has slowed down. The City determines a route and then utility staff go door -to -door checking as many meters as they can. Crystal also checks meters when customers request that they be checked or when the meter readings indicate, as determined by the utility staff or by computer software, that the meter may be inaccurate. The City of Golden Valley checks meters when customers request that they be checked or when the meter readings indicate, as determined by the utility staff or by computer software, that the meter may be inaccurate. Golden Valley changed out all residential meters between 1982 and 1985. The City is planning to conduct an accuracy analysis of residential meters by checking a sample of 100 meters. The City of New Hope checks meters when customers request that they be checked or when the meter readings indicate, as determined by the utility staff or by computer software, that the meter may be inaccurate. All three member cities have meter replacement programs underway, or planned for 2000. After the meter replacement, the cities will be using the same metering system, using radio read meters and common billing software. The JWC intends that the new metering system will improve metering accuracy and efficiency, and will help to track water losses. The system will have the capability to detect water use violations when water bans are implemented. Once the program is completed, a program for maintenance and calibration will be established. The JWC intends for the program to be identical in all three member cities. The JWC should also calibrate their pump station meters and confirm that they are within the meters' rated accuracy. 32 80593O.AW S P C.2. Water Audits, Leak Detection and Repair Unaccounted -for water loss is the difference between water purchased from Minneapolis and water sold to the JWC customers. Unaccounted -for water use in the JWC system has averaged around 2.5% for the last ten years, excluding 1989 when negative unaccounted -for water use was recorded. Given the history of low water loss in the system, the JWC does not plan to implement a leak detection program. However, if unaccounted -for water use increases after the meters have been replaced and calibrated, the JWC may consider implementing a leak detection program. The American Water Works Association (AWWA) has published two books related to leaks and unaccounted -for water, which the City should consider purchasing. The titles of the two books are "Leaks in Water Distribution Systems" and "Water Audits and Leak Detection ". These books would be helpful if the member cities decide to conduct a leak detection program. C.3. Conservation- Oriented Water Rates Each of the three member cities bill the customers in their respective cities. The water rates vary from city to city, but each city uses a uniform rate structure. All three cities bill their customers quarterly for water use. Following are summaries of the water rate structures for each member city: C.3.1. City of Crystal Water Rates Crystal has two basic charges, a quarterly service charge based on meter size and the water use charge. The quarterly service charge is based on meter size and is designed to cover the cost of meter maintenance, system maintenance, meter reading, and billing and collection of accounts. The quarterly service charge is $15.90 for meters less than 1 -inch diameter (these are mostly residential customers). Senior citizens get a discounted quarterly service charge of $12.40 for meters less than 1 -inch diameter. The water use charge is based on the volume of water consumed, and is designed to cover the cost of water purchase, pumping (including chemical costs), system maintenance, and capital expenditures (replacement of the system). The City charges $1.29 per 100 cubic feet (1998 rate). The City reviews water rates every year and will adopt a conservation- oriented rate structure similar to Golden Valley and New Hope as part of the JWC conservation program. C.3.2. City of Golden Valley Water Rates Golden Valley charges its customers based on water use. There is a minimum quarterly fee of $15.00 for water meter sizes up to and including 1 -inch diameter. This quarterly fee includes up to 10,000 gallons of water use. Quarterly water use over 10,000 gallons is charged at a rate of $1.70 per 1,000 gallons (1998 rate). The water rate is based on the volume of water consumed, and is designed to cover all costs associated with operating and maintaining the water system. The City reviews water rates every year and will adopt a conservation- oriented rate structure similar to Crystal and New Hope as part of the JWC conservation program. 33 ansgimmisp C.3.3. City of New Hope Water Rates New Hope charges its customers based on water use. There is a minimum quarterly fee of $5.70 for water meter sizes up to and including 1 -inch diameter. This quarterly fee includes up to 1,000 gallons of water use. Quarterly water use over 1,000 gallons is charged at a rate of $1.57 per 1,000 gallons (1998 rates). The water rate is based on the volume of water consumed, and is designed to cover all costs associated with operating and maintaining the water system. The City reviews water rates every year and will adopt a conservation- oriented rate structure similar to Crystal and Golden Valley as part of the JWC conservation program. Water conservation can be achieved through conservation - oriented water rates. The uniform rates used by the member cities have some effect on water use because all water use is charged to the customer at a uniform rate. This is better than a decreasing block rate where the more water that is used, the less that is charged or a flat rate where each customer is charged a certain rate independent of water use. Stronger incentives to conserve water include increasing block rates, where the more water used, the higher the cost per 1,000 gallons, and seasonal rates or surcharges which increase the cost for water over a base amount during high water use months such as May through September. Another option is to bill customers monthly. This is especially important during summer months when a monthly bill will remind customers of the costs of lawn watering. Switching to monthly billing would have additional costs associated with it. The member cities should determine if the benefits from monthly billing would compensate for the additional costs associated with monthly billing. The three cities plan to establish conservation- oriented rate structures as part of the JWC water conservation program. The rate structures will contain incentives for water efficiency, and will likely contain a consistent base rate in all three cities. Water use rates above the common base rate will vary among the cities depending on each city's operating and Capital Improvement budget. C.4. Regulation The Energy Policy Act of 1992 stipulates water efficiencies for almost all household water using fixtures (including toilets, showerheads, and faucets) manufactured after January 1994. Federal and state plumbing codes have changed so that all new homes and retrofits to existing homes are required to comply with the new water efficiency requirements. This legislation will have a positive effect on long -term water demand. The Cities of Crystal and New Hope both have ordinances for controlling short -term water demand. 34 sns2mimsP Following is the portion of the New Hope City Code that relates to short -term water demand: 5.08 Water Sprinkling Ban 5.081 Purpose. The City Council has determined that in certain drought conditions it may become necessary for the protection of the health, welfare and safety of the citizens of New Hope to conserve the water supply of the City by imposing a water sprinkling ban on all residential, commercial and industrial lawn and garden vegetation. Also, New Hope's contract with the City of Minneapolis for the purchase of water requires the imposition of a water sprinkling ban at the direction of the City of Minneapolis. The purpose of this section is to set forth the nature and extent of the regulations controlling any sprinkling ban imposed by the Council. 5.082 Resolution Imposing Ban. All water sprinkling bans shall be imposed by adoption of a resolution at any regular or special meeting of the New Hope City Council. The resolution shall set forth the duration of the ban, whether the ban shall be partial or absolute, if a partial ban, whether it shall apply to lawns and boulevards only or also to gardens, new sod and /or new tree saplings, the days or schedule when sprinkling will be permitted under a partial ban, and any other regulations that the City Council deems reasonable and appropriate. Said ban shall become effective immediately upon the adoption of said resolution. 5.083 Notice of Ban. The resolution imposing the sprinkling ban shall be published once in the official newspaper of the City, and conspicuously posted in four places throughout the City. Any deficiencies in this notice requirement shall invalidate the ban. 5.084 Enforcement. A violation of this section shall be a petty misdemeanor. However, a first offense shall not result in the issuance of a ticket. The owner, any occupant of legal age or party responsible for water billing shall be first issued a warning ticket upon the first violation of the water sprinkling ban. A warning letter mailed to the occupant of the property or the individual responsible for the water billing at the violating property shall satisfy the warning notice requirement of this section. Each act of violation and each day a violation occurs or continues constitutes a separate offense. Following is the portion of the Crystal City Code that relates to short-term water demand: 715.29 Restrictions against sprinkling, other limitations of water use. Water customers and consumers are governed by the applicable regulations promulgated by the City of Minneapolis as to the limitations in the time and manner of using water and such other applicable regulations promulgated by the JWC affecting the preservation, regulations and protection of the water supply. If the City Council determined that a shortage of water supply threatens the City, the council may by resolution limit the times and hours during which water may be used for anything other than in home use during the period covered by the resolution. A daily penalty will be charged for this violation as provided in Appendix IV. Charges will be added to that person's next utility bill. The City of Golden Valley does not have any ordinances regulating water use but, based on their agreement with Minneapolis, during water supply shortages, they implement water restrictions in accordance with Minneapolis water restrictions. 35 £405 ?30.1 \WSP The JWC is currently required to follow the water use regulation and enforcement policies of the City of Minneapolis, but intends to establish freedom to declare water emergencies and enact water use regulations through its current contract negotiation with Minneapolis. The goal of the JWC is to develop a uniform water restriction ordinance for Crystal, Golden Valley and New Hope and that is coordinated with the City of Minneapolis. As part of the conservation program, metering capabilities will be improved. Radio -read meters will allow for real time monitoring of water use and can help detect non - compliant water use during water restrictions. C.S. Education and Information Program The member cities of the JWC do not currently have programs to educate their customers about water use and water conservation. The JWC understands that a public education program will enhance any of the conservation methods described in this section and plans to coordinate the education effort among the communities. Once the JWC conservation program is started, city websites, informational television announcements, brochures, and consumer confidence reports will be used to provide educational messages related to water conservation and will inform the public of water emergencies and water use restrictions. The on -going education program will inform customers of how to increase water efficiency during everyday use. Education programs can get residents to reduce shower duration, turn off water while brushing their teeth, and run dishwashers and clothes washers only when they are full. The program will also encourage residents to invest in low -flow fixtures as a means to reduce water use. The American Water Works Association (AWWA), and the Department of Natural Resources have several brochures, bill stuffers and mailers available to educate the public on water conservation. Examples of various publications available from AWWA have been included and can be found in a pocket at the end of this report. Peak water use in the summer months is attributed to lawn and garden sprinkling. An education program can inform people about how to water efficiently. Educational pamphlets regarding landscape water use, such as those provided free of charge from the University of Minnesota Extension Service, can provide residents with the information to change their landscape watering habits. An example has been provided in Appendix B. As part of the education program, customers will be informed of their water use priority described in Section II.E. The JWC intends to establish a "Low Water Alert Test Day" similar to tornado awareness day, which would institute a mock water shortage. C.6. Retrofitting Programs As covered in Part C.4., the Energy Policy Act has changed the efficiency of various water fixtures manufactured after January 1994. The replacement of existing fixtures will occur gradually over the years as customers, of their own free will, replace old, low- efficiency fixtures. AWWA has estimated that 'Based on the combination of fixtures of different ages now in use, the average 2.63 person household uses about 121 gallons /day for toilets, showerheads and faucets. This will probably drop to about 55 gallons /day by the year 2026 as the pre -1994 generation of fixtures is replaced by the post -1994 stock." 80F;? 0.nwSP 36 Fixture replacement could be accelerated if the JWC were to start a rebate program for replacing old fixtures with new low flow fixtures. Customers would receive a cash rebate or credit to their account for bringing in an old fixture and a receipt for a new low flow fixture. High use fixtures such as toilets and showerheads are often targeted in rebate programs. These type of programs are more effective in older communities which have more high flow fixtures. Since the JWC has a significant percentage of homes built before 1980, the JWC should conduct a study to determine if the water savings that could be accomplished through a rebate program would be worthwhile. Table III -1 shows the potential water savings associated with various fixture replacement. Table 111 -1 Potential Water Savings From Fixture Replacement Program Item Manufacturing Date of Fixture Before 1980 1980 to 1993 After January 1994 Toilet (1) Flush (gallons) 5 3.5 1.6 Water use (gpcd) 20 14 6.4 Faucet (2) Flow (gpm) 3 2.8 2.5 Water use (gpcd) 9 8.4 7 Shower (3) Flow (gpm) 4 2.8 2.5 Water use (gpcd) 20 14 12.5 Total Water Use Per Person (gpd) 49 36.4 26.4 Total Water Use Per Household (gpd) (4) 127.4 94.6 68.6 Potential Savings if Retrofitted with New Fixtures 58.8 26 0 (1) Based on 4 flushes per person per day (2) Based on 3 minutes of faucet use per person per day (3) Based on 5 minute of shower use per person per day (4) Based on 2.6 persons per household for low density housing. Actual water use will vary by person and by household. 37 8nS93n.11WSP Rebate programs are intended to postpone the drilling of new wells or construction or expansion of treatment plants by reducing the total demand. The cost of the rebate program can then be spread out over the postponement time. Since there is no future construction planned throughout the JWC water system for treatment plants or new wells, a rebate program would probably not be very cost - effective. Encouraging customers to replace fixtures on their own through education is probably more cost - effective than a rebate program. C.7. Pressure Reduction By decreasing the system pressure in a water system, the flow rate (gallons per minute) is decreased. The Ten States Standards recommends that the normal operating pressure in the distribution system be approximately 60 psi and not less than 35 psi, and that during fire flow conditions, all points in the system maintain a minimum pressure of 20 psi. According to the CYBERNET computer model of the JWC water system, the water system normal operating pressures range between 45 and 85 pounds per square inch (psi). This indicates that the JWC is currently operating somewhat above the Ten States Standards' recommended pressures. Reduction in pressure throughout the system would need to be accomplished by reducing the water level in the towers. This is not acceptable from a fire - fighting standpoint because reducing the water levels in the towers would reduce the volume of water available for fighting a fire. The only feasible means of reducing pressure to customers is through pressure reducing valves (PRV). Currently the member cities do not have any plans to install PRV's on the customers' service lines where pressure levels are high. Conservation Program Implementation Schedule for All Member Cities Implementation Meter Replacement Program Conservation Program Development Annual Water Audit Water Rate Evaluation Date Beginning 1998 �Z Beginning 1999 Ongoing, every year After the DNR has approved the plan, public hearings will be held in each of the member cities to allow community review of the plan. The plan will be adopted by each City Council. The plan will be updated every ten years or as required by state legislation. 38 1905210A\W S P PART IV. ITEMS FOR METROPOLITAN AREA PUBLIC SUPPLIERS A. DESCRIPTION OF THE MUNICIPAL SYSTEM Parts I.A through I.D and Part 11.13 fulfill the requirements of this section. B. WATER UTILITY OPERATIONS B.1. Policies It is the policy of the JWC to provide high quality water at affordable rates, while assuring that water supply is adequate to meet the demand of its customers. The water conservation measures developed through the JWC conservation program will be applied to assure that water use does not create a long -term negative impact on the Mississippi River. B.2. Objectives The objectives of current water utility operations, such as repair of watermain breaks and leaks, and initiation of a conservation plan are to protect and wisely use the JWC's water resources. B.3. Standards Criteria that will be used in system operation for storage expansion, pumping addition, etc., are developed in Parts I through III. Triggers for implementing short -term demand reduction measures are based on the storage volumes and pumping capacities of the JWC system, and water availability from the Minneapolis system. These are discussed in Part II. F. The adequacy of the existing system (including storage) and associated criteria are discussed in Part I.D.3. C. CONSERVATION PROGRAM Parts III.A through D fulfill the requirements of this section. D. EMERGENCY PREPAREDNESS /CONTINGENCY PLAN Part II.A and Parts II.0 through H fulfill the requirements of this section. E. COORDINATION OF PLANNING EFFORTS WITH OTHER SUPPLIERS AND PUBLIC AGENCIES E.1. Inter- Community Sharing As discussed in Section II.C.1, the JWC currently has no interconnections with any adjacent communities other than the Minneapolis interconnections, which provide all of the JWC's water supply. The JWC is considering installation of an emergency interconnection to the St. Louis Park water system, and has also talked with General Mills about the possibility of an interconnection. 39 805230JAW S P E.2. Joint Pursuit of Alternative Sources and Protection of Existing Sources The JWC receives their water from the City of Minneapolis. The City of Minneapolis draws its raw water supply from the Mississippi River. Should an oil spill or chemical spill occur upstream of Minneapolis' raw water intake, Minneapolis would likely have to shut down its intake until the spill passes. Minneapolis has storage facilities equivalent to approximately one day of average day demand. Therefore, if the raw water intake would have to be shut down for longer than 24 hours, the City of Minneapolis and the JWC would essentially be without water for the remaining duration of the shut down. Protection of the water supply source by the Joint Powers Water Commission alone, the Mississippi River, is not feasible because a chemical spill could occur anywhere for miles upstream of the Minneapolis raw water intake. To minimize the effect of a possible interruption of water supply due to a spill in the Mississippi River, the JWC is considering construction of a 16 -inch diameter emergency interconnection with the City of St. Louis Park. St. Louis Park does not have adequate water supply capacity to meet both their own maximum day needs and the JWC's maximum day needs, but on a maximum day condition, St. Louis Park would be able to provide the JWC with 3 MGD. However, St. Louis Park should be able to provide the JWC's average day demand if the water emergency should occur during a normal demand period. The JWC is also considering connecting to more than one adjacent water system. Both Plymouth and Brooklyn Park have sufficient excess capacity during average demand conditions and Brooklyn Park has excess capacity during maximum day conditions. The Cities of Brooklyn Park, Plymouth, and St. Louis Park have all expressed interest in having emergency connections with the JWC. The JWC is also currently studying alternative water sources that could be used in the event of a water emergency. F. PROBLEMS AND POTENTIAL SOLUTIONS The elements contained in Part I.D fulfill the requirements of this section. The JWC does not use groundwater wells as their source of water supply. Therefore, the JWC will not be required to prepare a Wellhead Protection Plan. H. IMPLEMENTATION PROGRAM H.1 Official Controls As discussed in Part III.C.4, the Cities of Crystal and New Hope both have ordinances for controlling short-term water demand. Refer to Part III.C.4 for these ordinances. The City of Golden Valley does not have any ordinances regulating water use but, based on their agreement with Minneapolis, during water supply shortages they implement water restrictions in accordance with Minneapolis water restrictions. The JWC plans to adopt common water regulations following the current water use agreement negotiations with the City of Minneapolis. 40 8n99in.nwsP H.2 Capital Improvement Program (CIP) A copy of the JWC's Five Year Capital Improvements Program (CIP) has been included in Appendix D. In general, the five year CIP includes inspection, routine repair and replacement of old and wom equipment, and the upgrading of some equipment. The interconnection with St. Louis Park scheduled for 2000 is the largest improvement listed in the CIP. H.3 Impact on the Local Comprehensive Plan The adoption of the Water Supply Plan will have minimal impact on each member City's Comprehensive Plan. Since the conservation plan will reduce water use, the volume of water withdrawn from the Mississippi River (via Minneapolis) will be reduced. Future growth of the member cities should not be affected by this plan. 41 1905230) \WSP MnDNR AND METROPOLITAN COUNCIL GUIDELINES 805230J \WSP METR OPOLITAN AREA COMMUNITY WATER SUPPLY PLAN CONTENT GUIDELDiES Metropolitan Council and Minnesota Department of Natural Resources January 1994 F ± further information call 291-6484 Mez.-coolitan Council of the T,;,j Citi A rea Mears 'Dark Centre, 230 F- F SL J. St. Paul. 55101 Tel. 612-291-6359 Publication -No. 590-94-007 �IVJ N .R' ODU=ON The following guidelines were prepared by the Minnesota Department of Natural Resources (DNR)- Division of Waters and Metropolitan Council. The guidelines are intended to offer assistance to those communities within the Metropolitan Area with municipal water supply systems in the preparation of their water supply plans, as mandated by Chapter 186 of the 1993 legislative session Iaws. These guidelines were produced by the DNR and the Council after input was received from a technical advisory committee of water suppliers, city planners and resource interests. A public hearing was held by the Council on November 18, 1993 and a statewide review was solicited by the DNR in Iate 1993. Communities with municipal water supplies in the Metropolitan Area will need to submit their water supply plans as an amendment to their local comprehensive plans by January 1, 1996. These communities will also need to submit the conservation and emergency contingency plan components of the plan to the DNR within the same time - frame. Guidelines that the tiietropodtan Council uses in the review of local comprehensive plan amendments are also avaiiable from the Council (publication No. 640 -94 -066). Questions on pars I -III of the plan content guidelines can be answerer by Jim Jao_ s of the DN Di of Maters (297 - ZK3_) and questions on pan IV of the content guidelines or on comprehensive plan review can oe rererred to Gary Ober-�s (291 ') cf the Council's Natural Resources staff. OFNATTYRAL RESOURCES DrVISION OF tGUIDELLNES FOR JI ! ' T CONSERVATION PLANN. These guidelines are divided into four parts. The fist three parts, Water Supply System Description and Evaluation, Emergency Response Procedures and Water Conservation Planning apply statewide. Part IV, relates to comprehensive plan requirements that apply only to communities in the seven county Twin Cities Metropolitan Area. PART I. WATER SUPPLY SYSTEM DESCRIP'T'ION ADD EVALUATION The first step in any water su analysis is to assess the current status of demand and supplies. Information in Part I, can be used in the development of Emergency Response Procedures and Conservation Plans. DNR Water Appropriation Permit Number. - Name of Water Supplier. :address: Name, Title and Telephone dumber of Contact Person: Population of Service Area: "otal :number of Service Connections: A. ANALYSIS OF WATT DAL- .-N i. Summary of 1istorc water Use. Provide a summary of total water use for the last 10 years. Indicate ctanges in population and the number of service connections for tius time period and discuss the impact of these changes on water use =. Per Capita Water Use. Provide a historic summary of gallons per capita per day (gpcd) for the last tea rears. To determine gallons per capita per day divide the total annual use by 365 days and the number of people served by the systenz. If possible, separate per capita data for residential and total water use. 3. Water Demand by Customer Category. Records of water use by customer categories can provide an uncle- tanding of demand characteristics and problems that may need to be addressed when developing allocation procedures and conservation programs. I Su mmarize water use by residential, commercial, industrial, unaccounted for, and other customer categories for which data are available. Definitions of water use categories are listed at the end of this form. Be sure to provide your own definitions if you maintain records of customer categories that are different from the given definitions. CATEGORY NUMBER OF 199 USE IN % OF TOTAL CONNECTIONS 'N = ON GALLONS ANNUAL USE Residential Commercial Industrial Unaccounted % Other TOTALS 100 You may want to include additional water use categories such as public use, institutional use. wholesale deliveries. or other breakdowns of water users to help in development of allocation procedures and conservation programs. Large Volume Customers. List all individual customers that use more than 5 % of the total production. Name Volume (tiiGY) a of total �. Seasonal and Peak Water Demands. Analysis of seasonal changes in demand will help determine demand reduction potential. Provide an average of water produced over the last ten nears. The months of January and Juiv should 1e used for winter and summer use remec- dvely. Water Demand Average Maximum Winter MGD '-IYIGD Summer -' GD MGD Record Peak Demand MGD Date Describe t;rpical daily demands for winter and summer use. If appropriate. include a discussion of other factors that affect daily water use, such as use by non - resident commuter employers. Monthly water use by customer category provides a better understanding of seasonal demands. Using a table similar to the format below, provide a breakdown of monthly water use (sold) for the same customer categories and water year used in Item 3. In addition to the table you may want to plot the data on a graph for easier visual interpretation. Indicate the dates covered by the meter reading period if meter reading is not done on a monthly basis. Month January February March April May June July August September October November December Total Residential Commercial Industrial Unaccounted Tom B. TREAT�LEN A;ti-D STORAGE C.AR -, CITY. - . Vater Treatment Punt Capaciry ( Gallons Per Dav Design Capacity MGD -N*veraQe Dai1v Production NIGD Emergency Capacity '�IvfGD �- Jto raae C3DacirTl. L.F' all sto rage szructures and `aDaclIIes. Plans should discuss the 3de` uaC; +' Or ;eSZ, ^te suIID11eS to Me-t demand under various water use nastrricnons. E=levated Storage Ground Storage Other v Total Storage Capacity Gallons C. SOURCE OF WATER SL - PPLY. Provide a general description of the water source(s) with respect to annual production capacity (MGY). Indicate the number of new production wells constructed in the last ten vears and the reason for the new well (replacement, added capacity, etc). For surface water sources indicate the name of the resource, number of pumps and total annual production capacity (MGY). 3 A detailed description of each water source and a map of the system will be included in the emergency response procedures. However, you may want to include additional information in this section such as general geologic data, range of well depths, a description of separate well fields, the basin size for surface water sources and other data relevant to production capacity or limitations. The intent is to include information that will be useful for evaluating the adequacy of existing water resources to meet current and future needs. D. ADEQUACY OF SYSTEM TO SUPPLY DEZ MIND. Describe the adequacy of e ;fisting sources of water and the water supply system to provide existing and projected demands. I. Summarize historic water level data and evaluate seasonal and long term impacts from appropriations; I Evaluate the adequacy of the resource to sustain current and projected demands; I Evaluate the adequacy of the existing water treatment and supply system to sustain current and projected demands; 4. Describe any plans to expand or modify the system. Plans must include a statement of justification supporting the reasonableness of the expansion. The statement must include information on: projected water use by category and a 10 year projection of population growth and associated industrial and commercial developments. E. ST: OF DATA. Discuss anv conclusions regarding eater demands. suppiv problems. and future needs. T DEF=ONS OF WATER USE CATEGORIES Residential. Water used for normal household purposes, such as drinking, food preparation, bathing, washing clothes and dishes, flushing toilets, and watering lawns and gardens. Also called domestic water use. Commercial. 'Water used by motels, hotels, restaurants, office buildings, commercial facilities, and institutions, both civilian and military. Industrial. Water used for thermoelectric power (electric utility generation) and other industrial uses such as steel, chemical and allied products, paper and allied products, mining, and petroleum refining. Irrigation. Artificial application of water on lands to assist in the ;rowing of crops and pastures or maintaining rational lands such as parks and golf courses. Unaccounted. Unaccounted for water is the volume of withdrawn minus the volume sold. Institutional. Hospitals. nursing homes. day care centers. and other facilities that use water for essential domestic requirements. These facilities are normally categorized as a Commercial water use, but you may want to maintain separate institutional water use records for emergency pianming and allocation purposes. ' noiesale Deliveries. Bul_< water safes to other, public water suppliers. W_ = Non ^.dal water uses defined by 'ML- inesom Statutes 103G.291. include lawn �rrinklinz. vehicie washing, golf course and park irrigation and other non essential uses. Some or the categories listed above will also include non - essential uses of water because it is not possible for water suppliers to separate these uses for individual accounts. 5 P-ART U. EMERGENCY PLANNLNG FOR PUBLIC WATER SUPPLEER,-s Water emergencies can occur as a result of accidental contamination, mechanical problems, Power failures, drought, 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. During periods of limited water supplies public water suppliers are required to allocate water based on the priorities established in /Minnesota Statutes 103G.261. First Priority. Domestic water supply, excluding industrial and commercial uses of municipal water supply, and use for power production that meets contingency requirements. Second Priority Water uses involving consumption of less than 10,000 gallons per day. Third Priority. Agricuituial irrigation and processing of agricultural products. Fourth Priority. Power production in excess of the use provided for in the contingency plan under first priority. Fifth Priority. Uses, other than agricultural irrigation, processing of agricultural p and power production. Sixth Priority. Non - essential uses. These uses are defined by NLmesom Statutes 103G.291 as lawn sprinkling. vehicle washing, golf course and park irrigation. and other non - essential uses. While initial emergencv responses may include actions to augm p ent supplies and/or reduce de ands, sever water shortages w o ula mqu= water allocation jr-, accordance with these riorities. DMO-NA D F0RNLkTiON i .iese zuideiines a-re intended to provide the basic elements that s;::cuid be considered in the 'Z�` %el0pmenL Of enler- - plan- and procedures. Additional infor nation on eInergencv oianning is available frOm tae American dater Works Association. Member Services Department. 6666 Quincy Avenue, Denver. Colorado $0235, (303) 794. -;711. Brnerzencv Plannina for Water UtiliQr ]Nfanaaement. AWW A Pubiication -?Vi19 Back To Basics Guide To H.- nerQencv Planning if your Community aLreadv has written procedures dealing with war e-, emergencies we recommend that you use these guidelines to review and update exis procedures and water supply protection measures. 6 IMM A. Emergency Telephone List. A telephone list of emergency contacts should be maintained. The list should include key utility and community personnel, contacts in adjacent communities, and appropriate local, state and federal emergency contacts. 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. Responsibilities and services for each contact should be defined. B. Current Water Sources and Service Area. The Emergency Response Procedures should include an attachment that provides concise, detailed information an water sources and service areas. Quick access to this information may be important in an emergency situation. Be sure to indicate the daily production capacity for each source and if the water source is an emergency, interim, permanent, reserve, seasonal, or other type of source. Water quality data, maintenance information, or other additional data that may be important in an emergency should also be included. 1. Description of Ground Water Source(s). Include copies of water Well Records for each well or a summary of well data. Summaries of well data should include: Unique Well Number, Iocation, year installed, casing diameter, casing depth, screen length, well depth, water - bearing formation, pump type and capacity (GPNI). Description of Surface Water Sources. Include the name of the basic or water zourse, the number. capacity and age of each pump, size of the basin or low flow characteristics. and relevant intake information. Service Ana. A mac of the system should be included as an attachment to the plan so that it is available for use in the event of an =er aencv. Tne map should indicate -he locations of treatment piants. water sources (pumps /wells) and major supply lines thar are part of the distribution system. C. Procedure for Augmenting Water Supplies. Emergency response procedures must list ail available sources or .pater that can be used to augment or =lac-- existing sources. Tae foiiowinq section includes suggestions that should be considered as potential alternate souses. 1. Interconnections with Adjacent Communities. Plans should identify emergency water supply sources, inciuding existing and potential interconnections with adjacent communuies. A list of all private high caoaciry wells that could be available in the dvent of an emergency should be maintained. In the case of a municipality, this information should be containers in a notification and warning standard operating procedure maintained by the warning point for that eommuniry. Copies of cooperative agreements should be maintained. 7 Note: Be sure to include information on any physical or chemical problems that may limit interconnections to other sources of water. Approvals from the MN Department of Health are required for interconnections and reuse of water. a. Name of interconnecting water systems which supply water to your system: System Capacity (MGD) Emergency or Daily Use b. W ater which you provide to interconnected systems: System Capacity (MGD) Emergency or Daily Use c. Private water sources Capacity (MGD) 2. Conjunctive Use of Surface and Ground Waters. The feasibilit of conjunctive use of surface and ground water resources should be considered when both resources are available. The goal is to use surface water as the primary source when water levels are adequate. 1 'dmizin" use of surface water will protest and conserve ground water resources for use in an emergency or when surface water supplies are limited. Conjunctive water use is especially important in areas where greund water resources are limited. Plans should discuss the feasibility of conjunctive use incivamz anv - water quaiiry or av aiiabiliry limitations. 3. - Urernative Sources of Water. :mother option char should be considered when reasibie. is the reuse of treated water from oump -outs for the containment and removal of contamination. Often this water is created or can be treated to drinkinz Water quality standards and could be used in an tmergencv or ev used as part or the ervdav municiDai supply. D. Demand Reduction Procedures. 1. Demand Reduction Potential. Information on water demand should be used to _�vaivate the potential for demand reductions from each customer category. Local projections of demand reduction potential should be matched with app_ rooriate measures to achieve reduction goals. ?adopt Short-Term, Demand Reduction, Procedures. Develop procedures for implementing shot -term reductions in water demand. Initial reductions in water use can be encouraged by requesting voluntary actions from ail water users. Procedures for progressively stringent reduction measures should be available for use during critical water deficiencies. List ail short -term demand reduction measures that are part of the community conservation plan. M . E. Procedures for Water Allocation. Procedures must define how water will be allocated in accordance with statutory water use priorities during periods of limited water supplies. Allocation procedures should distribute water equitably within each water use priority and customer category. NOTE: Domestic use is defined (MN Rules 6115.0630, Subp. 9), as use for general household purposes for human needs such as cooking, cleaning, drinking, washing, and waste disposai, and uses for on -farm livestock watering excluding commercial Livestock operations which use more than 10,004 gallons per day or one million gallons per year. 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. Local allocation priorities 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. N water uses by residential and other customers are the lowest water use priority and should be the first water use subject to allocation restrictions. Quick responses to restrict non - essential uses during periods of limited supplies will help protect domestic and economic uses of waxer. Educational efforts to improve efficiencies of non - essential water uses should be part of long -term conservation programs. F. Esta blish Triggers for implementing Plan Components. : ggering levels must be defined for implementing emer responses, inciucung surmiv augmentation. demand reduction. and water allocation. T: should be based on specine indicators. such as zround water levels. szream riow. reservoir levels. tr- atment capacity. water demand. precipitation and other quantifiable indicators. Staged responses should be automaticaliv implemented to avoid political pressures and uriIirY relucance to declare shortages at a prudent time. tips: T'Ile potential for water availability problems during the onset re or a drought a almost impossible to pr.dic.. Significant -' ncreases in demand should be balanced with pre`. entauve measures to conserve supplies in the event of prolonged drought conditions. G. Enforcement. T"ne procedures should identify enforcement responsibilities. :appropriate penalties for non - compliance with demand reduction requirements and other mzu ations char are part of conservation plans should be defined. ' methods that will be used to make water users aware of conservation requirements and penalties for non - compliance. H. Water Supply Protection. Long -term preventative programs and measures will help reduce the risk of emergency situations. 9 l • Analysis of Previous Supply Problems. In this section list historic and existing water supply problems. Evaivate the types of problems to determine the potential for similar problems in the future. If possible try to identify sections of the system that are prone to failure due to age, materials or other problems. This information should be used to prioritize preventative maintenance for high risk areas of the system and also to determine the types of materials (pipes, valves, couplings, etc.) to have in stock to reduce repair time. 2. Wellhead Protection. Water supply protection is an essential part of emergency planning. All communities should have a wellhead protection plan prepared Ln accordance with rules adopted by the commissioner of the Minnesota Department of Health. Information and assistance on developing a wellhead protection program can be obtained by contacting the Department of Health, Wellhead Protection Program, Section of Water Supply and Well Management, 925 S.E. Delaware Street, Minneapolis, MN 55440. 3. Resource ;vionitorinz. Records of water levels and withdrawals should be maintained for production wells and reservoirs. The DNR also recommends the installation of observation wells to assess the short -term and Ion, term resource impacts from -round water withdrawals. To obtain information on observation well specifications or to obtain a list of existing observation wells in your area contact the Observation Well Program Manager, DNR - Division of Waters, 500 Lafayette Road, St. Paul, MDT 55155 -4032 or call (612) 296 -4800. 10 PART M. WATER CONSERVATION PLANS FOR PUBLIC WATER SUPPLDMS Water conservation programs are intended to reduce demand for water, improve the efficiency in use and reduce losses and waste of water. Emergency response procedures must include short-term water conservation measures to reduce water demands when supplies are limited. Long -term conservation measures are an important part of water resource management and can also help utility managers satisfy the ever- increasing demands being placed on water resources. Conservation programs can be cost effective when compared to the generally higher costs of developing new sources of supply or expanding wastewater treatment plant capacities. Water users are required (.NLLN Rules 6115.0770), to employ the best available means and practices to promote the efficient use of water. Laws of Minnesota 1993, Chapter 186, also requires public water suppliers to implement demand reduction measures before seeking approval to constrict new wells or increases in authorized volumes of water. Water suppliers are encouraged to evaluate conservation as a potential alternative to developing supplemental water sources to meet peak demands for nonessential water uses. These guidelines describe the elements that must be considered when developing water conservation plans for short-term emergency procedures and Ion, term programs to improve water use efficiencies. A. Role of Conservation. Puns must describe the role that conservation has in managing community water demands and supplies. Specific quantifiable conservation Goals should be defined. along with a description of how the achievement or these Qoais will be measured and monitored. B. 'Water Conservation Potential. An assessment of water conservation potential should be done for each customer category using information on water demand in Part I. Evaluate seasonal demand data. unaccounted for water, and customer water use to estimate :conservation potential. C. 'Water Conservation ?rograms. This section must describe short-tern conservation measures that are available for use in an emergency, and long-.erm measures to improve ,,; ater use ernciencies. Short-term demand reduction measures must be included in the ernergencv response procedures and must be in support of', - and part or, a community ail- Hazard emergency operation plan. Specific elements that should be included in the plan are: 1. yletering. Conservation plans should provide a schedule and describe procedures for meter r.ading, testing, recaiibration, and repair.'repiacement of defective meters, including master meters. Plans to achieve 1009c metering should be stated if the system is not completely metered. I1 2. Water Audits, Leak Detection and Repair. The volume of unaccounted -for water should be determined on a regular basis. Unaccounted -for water is the difference between the volume of withdrawn minus volume sold. Estimating the volume of water for certain categories of unaccounted -for water can help define program needs and priorities for on -going system rehabilitation worm. Gallons Meter under - registration Public ur metered use Potentially recoverable leakage Other (include unavoidable leakage) Total unaccounted -for water (withdrawals- -water sold) Plans should provide a historic summary of unaccounted -for water losses and describe existing programs, policies and procedures to minimiz these Iosses. Plans should specify whether actions to locate and repair leaks are done on a one -time, periodic, or regular on -going basis. It is important that these programs have adequate funding for system rehabilitation, maintenance, and repair. _ . Conservation - Oriented Water Rates. Plans must include the current rate structure for all customers and provide information on any proposed rate changes. The basis fcr current price ievels and rates. inciudina cost of service data. and the imtaact current rates have on conservation must be discussed. Decihiina block. (the more water used, the cheaper the rate) and fiat (one fee for an unlimited volume of water) rates should be resuuc:ured to uniform or increasing block rates. Lnco=ratuia a seasonal rate str.:cture and the benefits or a monthly b ling cvcle should be zonsidered. Ln conjunction with other demand ruction measures. it is also - commended that an emergency rate structure that provides even stronger incentives 70 reduce water use be developed and available for imoiemermrion. if necessary. Regulation.. Plans should include regulations for short -term reductions in demand and Iona -term imz7rovements in water efficiencies. Ordinances and other regularions for snort-term demand reduction should have well defined triggering levels for L Comes of adopted regulations or proposed restrictions should be included in the plan. Plans should also establish procedures for enforcement and include penalties for non- compliance with enacted conservation responses and other restrictions. 12 Note. Regulations can range from prohibiting certain non - essential water uses, restricting times when specific uses are allowed, establishing consumption limits, plumbing code changes requiring water efficient plumbing fixrures/appliances, requiring permits for special uses such as filling swimming pools, and other types of measures. 5. Education and Information programs. Plans should describe all past, current and proposed efforts to promote efficient water use. Be sure to indicate whether educational efforts are on -going and which efforts were initiated as an emergency or drought management effort. Specific educational materials and notices should be available for use during periods of limited water supplies when public awareness for conservation is high. Educational and information programs include but are not limited to school curriculums on water resources, direct mailing of conservation information to encourage voluntary water - saving habits, residential water audits, retrofitting incentives, public service announcements and other media campaigns. Communities can also provide demonstration projects for water conserving plumbing fixtures and landscaping. 6. Retrofitting Programs. Plans should describe any programs to retrofit inefficient plumbing fixtures (toilets, showerheads, faucets, a nd aerators). The cost of establishing a program and the potential savings should be evaluated and discussed. Possible funding sources from water and wastewater revenues and cooperative Programs with gas and electric utilities should be pursued for demonstration or Iarger scale projects. T is recommended that communities develop a long - test plan to retrofit public buildings. A plan such as this will help promote educationai erorts as wail as demonstrate fiscal and environmental resDonsibiiirv. 7. Pressure Reduction. Plans should describe any utiliry policy, plumbing codes or regulations related to distribution and customer pressure control. Be sure to discuss the use of pressure control as an emergency resonse procure as well as any ahvsicai limitations that may restrict the use or control. icer public review the plan should be. formally adopted by the D. adoption of Plan. d communityiwater utility. A schedule for impiementing elements of the plan must be established. Plans must be reviewed and updated every ten ;years. A list of sources for additional information on conservation planning are available upon request from: Department of Natural Resources - Division of Waters 500 Lafayette Road / St. Paul, N �, 55155 -4032 (612) 296 -4800 13 YEETROPOLITAN CO UNCIL 1993 Minnesota Laws, Chapter 186, requires that all local units of government in the seven - county Metropolitan Area prepare an amendment to the local comprehensive plan to address water supply. The new plan would occur as a major plan amendment in the public facilities plan section, which addresses the "character location, timing, sequence, function. use and capacity of existing and future public facilities" (Minn.Stat., §473.859). The focus of plan review will be on the short - and Iong -term impact of water use on the water sup 1v of the region. , , The following guidelines itemize the plan elements required by Chapter 186 in the Metropolitan Area. These elements often refer to Pans I -M to make the plans consistent with the law and with the Metropolitan Land Use Planning Act upon which local comprehensive plans are based. A. DESCRIPTION OF THE IYIL SYSTE,Id The elements contained in Parts Lk -D and U3 of these guidelines fulfill the requirements of this section. B. WATER L77LZ= OPER..�TIONS i . Policies. Provide a statement(s) on the principals that will dictate operation of the water supply utility: for e camnle. "It is the policv of the cirY to provide good Quality water at an affordable . w bdl a$Surin thi - s use does nor have a Iong -term neQativ= --source impact. „ _. Objectives. Provide information on what the purposes will be in operation of the _ommunity urilitv.ocusing on wise use of the resource. -- Standards. Defile the criteria that will be used in system operation for such things as he expansion or the system. tre addition or a new well. or the activation of a 'onser;ation program. C. CONSERVATION PROGRA yl me elements contained in Parts EL -D of these guidelines fulfill the re of this section. D. E:� LERGENCY PREP A= _NJ - ESSi C 0`= GE=CY PLAN T'rie elements contained in Parts BA. C -H of these guidelines ft fill the requirements of this section. 14 P'U'BLIC AGENCIES COORDINATION OF PLAINNLNG EFFORTS w1 0,1 aJ! SUPPLIERS AND t I . Inter- Community Sharing. Identify any emergency and/or long -term opportunities that exist for sharing source, treatment and distribution of water. Interconnecting with neighboring communities could lead to subregional self - reliance both for long -term water supply and for critical emergency conditions. 2. 10int Pursuit of Alternative Sources and Protection of Existing Sources. Identify opportunities for e xaminin g alternative water sources as both short- and long-term supplies. Explain the efforts underway to protect the current and planned supply source that provides the community with water. • t s • • The elements contained in Part M of these guidelines fulfill the requirements of this section. G. a t PROTECTION • • ! SERVED BY The community- adopted wellhead protection program, developed by the community in conformance with the Minnesota Department of Health wellhead protection rules [.Note: likely to be adopted by the state in late 19931 will constitute this element. Additional elements on possible joint community protection efforts would be beneficial. (See also Part IIG2. ) H. L' IPI -ENIE TATION PROGRA.NI 1. Official Controls. Identify the ordinances and reguiations that will be used to achieve the objectives and the components of the water supply plan. Include the schedule for preparation. adoption and administration of controls if they do not currently exist. 2. Capital Improvement Program (CIP). Identify the rive -year capital program that will be needed to accomplish the elements in the plan and the means by which the funds will be raised. - 3. Impact on the Local Comprehensive Plan. Identify the impact that the adoption of this water supply plan has on the rest of the local comprehensive plan, including implications for future growth of the community. economic impact on the community and changes to the comprehensive plan that might result. 15 The plan must be prepared by the city according to the sequence outlined in Minn.Stat., §473.175, and submitted to the Metropolitan Council and adjacent communities for review and comment by January 1, 1995. The Council will submit the plan to the county within which the submitting community exists if the community relies on ground water for supply and if the county has an adopted ground water plan under 2M § 1 O3B.255. The Council will finish its review within 90 days or a munially agreed upon extension, unless it Ends within 10 days of submittal that the plan is incomplete, at which time the plan would be returned and the review terminated until a complete plan is submitted. The community officially adopts the plan after it is returned with comments by the Council. DECENMER 1993 16 APPENDIX B. MONTHLY WATER USE DATA 805230) \WSP JOINT WATER COMMISSION MONTHLY WATER USE DATA 1987 -1998 Month -Year GOLDEN VALLEY, gallons g CRYSTAL, gallons g NEW HOPE, gallons JWC TOTAL, gallons WATER PURCHASED FROM MINNEAPOLIS, g allons Jan -87 76,590,000 37,696,956 64,276,110 178,563,066 194,625,860 Feb -87 78,042,000 63,868,728 50,683,510 192,594,238 200,419,868 Mar -87 43, 043, 000 57, 049, 060 63, 331,160 163, 423, 220 221,293,556 Apr-87 80, 441, 000 50, 940, 296 64,102, 480 195, 483, 776 404,648,552 May-87 111, 988, 000 100, 383, 096 59,439, 860 271, 810, 956 612,991,236 Jun -87 90,828,000 101,450,492 92,933,640 285,212,132 423, 769, 676 Jul-87 174, 950, 000 90, 831,136 104, 364, 760 370,145, 896 325, 886, 396 Aug-87 159, 466, 000 113, 535, 948 91,116, 690 364,118, 638 289,680,204 Sep-87 71, 094, 000 87, 800, 988 116,172,290 275, 067,278 232,865,864 Oct -87 121, 258, 000 55, 979, 572 84, 993, 980 262, 231, 552 195,057,456 Nov -87 110, 721, 000 80, 288, 824 65, 499, 070 256, 508, 894 195,156,940 Dec -87 49,108,000 59,300,692 72,465,500 180,874,192 3,491,920,564 1987 TOTAL 1,167,529,000 899,125,788 929,379,050 2,996,033,838 Jan -88 91, 824, 000 40, 056, 896 74, 500, 610 206, 381, 506 195, 524, 956 Feb -88 83,968,000 65,738,728 54,237,260 203,943,988 194,625,860 Mar -88 42,274,000 61,317,300 67,659,230 171,250,530 200,419,868 Apr-88 81,137,000 47,016,288 64,226,340 192,379,628 221,293,556 May-88 93,852,000 78,132,340 57,039,800 229,024,140 404,648,552 Jun -88 89,166,000 109,671,760 93,129,940 291,967,700 612,991,236 Jul -88 220,100, 000 118,197, 484 131, 853, 200 470,150, 684 423, 769, 676 Aug-88 202, 937, 000 150,180, 448 113, 949, 720 467, 067,168 325, 886, 396 Sep-88 114,279,000 107,213,084 154,166,200 375,658,284 289,680,204 Oct -88 155,367,000 69,644,784 98,863,400 323,875,184 232,865,864 Nov -88 136,318,000 85,305,660 118,689,800 340,313,460 195,057,456 Dec -88 48,607,000 54,426,724 $6,963,000 189,996,724 195,156,940 1988 TOTAL 1,359,829,000 986,901,496 1,115,278,500 1 3,462,008,996 3,491,920,564 Jan -89 88,454,000 42,922,484 73,780,700 205,157,184 187,534,820 Feb -89 77, 504, 000 61, 436, 232 58, 927, 600 197, 867, 832 169, 617, 228 Mar -89 46,131,000 55,237,556 66,988,700 168,357,256 188,927,596 Apr-89 78, 534, 000 42, 952, 404 66,111, 600 187, 598, 004 219, 419, 068 May-89 86, 231, 000 80, 844, 588 57, 487,100 224, 562, 688 301, 800, 796 Jun -89 64,308,000 81,728,724 70,478,700 216,515,424 257,122,284 Jul -89 217,145, 000 81, 739, 964 87, 060,200 385, 945,164 290, 833,620 Aug-89 159,342,000 108,206,428 90,117,700 357,666,128 337,415,320 Sep-89 98, 304, 000 101, 345, 772 120, 759, 700 320,409, 472 257, 807,176 Oct -89 294, 553, 000 71, 341, 996 102, 260, 500 468,155, 496 261, 247, 976 Nov -89 131,252,000 1 86,519,664 1 71,698,200 289,469,864 200,112,440 Dec -89 57,400,000 68,370,940 75,023,100 200,794,040 206,559,452 1989 TOTAL 1,399,158,000 882,646,752 940,693,800 3,222,498,552 2,878,397,776 JOINT WATER COMMISSION MONTHLY WATER USE DATA 1987 -1998 Month -Year GOLDEN VALLEY, gallons g CRYSTAL � gallons NEW HOPE, gallons JWC TOTAL, gallons WATER PURCHASED FROM MINNEAPOLIS, g allons Jan -90 85,380,000 43,554,544 73,291,700 202,226,244 197,258,072 Feb -90 80, 819, 000 66, 791,164 55, 051, 500 202, 661, 664 183, 991, 544 Mar -90 43, 421, 000 54, 440,188 64, 043, 800 161, 904, 988 202,167, 944 Apr-90 76, 954, 000 39, 991, 820 61, 795, 200 178, 741, 020 220, 271, 788 May-90 81,289,000 76,845,032 60,689,200 218,823,232 227,508,688 Jun -90 55,219,000 66,857,736 73,260,600 195,337,336 237,130,212 Jul -90 105,008,000 61,242,520 77,889,600 244,140,120 258,405,576 Aug-90 112, 985, 000 87, 014, 840 64, 293, 300 264, 293,140 300, 915, 912 Sep-90 78, 495, 000 82, 823, 796 82, 063, 800 243, 382, 596 253, 017, 732 Oct -90 123,254,000 59,232,624 86,405,500 268,892,124 210,158,828 Nov -90 95, 510, 000 75, 017, 668 65, 789, 500 236, 317,168 191, 956,248 Dec -90 44, 657, 000 1 57, 714, 932 67, 397, 000 169, 768,932 201, 705, 680 1990 TOTAL 982, 991, 000 771, 526, 864 831, 970, 700 2, 586, 488, 564 2,684,488,2 4 Jan -91 85,978,000 41,801,232 68,731,900 196,511,132 202,658,632 Feb -91 74,600, 000 65, 805, 300 54, 359, 800 194, 765,100 170, 742, 968 Mar -91 42,274,000 56,217,436 61,215,900 159,707,336 187,409,156 Apr-91 79,263,000 38,815,216 63,433,900 375,755,132 194,139,660 May-91 73, 042, 000 69, 053,116 52,147, 900 194, 243, 016 205, 641, 656 Jun -91 47, 913, 000 68, 494, 360 68, 039, 700 184, 447, 060 266, 350, 084 Jul-91 99, 632, 000 57, 444, 924 75,154, 800 232, 231, 724 272, 811, 308 Aug-91 111, 230, 000 85, 276, 488 64, 703, 800 261, 210, 288 251, 731,172 Sep-91 71, 638, 000 75, 720, 788 81, 933, 400 229, 292,188 223, 465, 748 Oct -91 120, 973, 000 50, 561, 808 74, 022,100 245, 556, 908 201,140,192 Nov -91 114, 943, 000 1 73, 432, 656 1 62, 312,100 250, 687, 756 184, 016, 976 Dec -91 50, 773, 000 53, 479, 008 65, 544,100 169, 796,108 195, 422, 480 1991 TOTAL 972,259,000 736,102,332 791,599,400 1 2,694,203,748 2,555,530,032 Jan -92 74,883,000 41,370,384 63,096,900 179,350,284 198,856,548 Feb -92 99,543,000 65,842,700 48,370,000 213,755,700 182,923,400 Mar -92 42,289,000 58,818,232 57,893,700 159,000,932 186,364,200 Apr-92 78, 304, 000 45, 459, 700 69,642, 500 398, 249, 028 182, 804, 468 . May-92 76,933,000 74,565,128 53,344,700 204,842,828 269,284,488 J u n -92 58, 521 000 67, 780, 768 75, 723,100 202, 024, 868 322, 358, 080 Jul -92 123,878,000 66,690,204 83,110,700 273,678,904 250,936,796 Aug-92 124, 007, 000 90, 923,140 73, 953, 500 288, 883,640 262,150, 812 Sep -92 70,887,000 78,599,092 96,626,900 246,112,992 207,047,148 Oct -92 104,158,000 54,559,120 75,232,300 233,949,420 196,323,072 Nov -92 1 87, 998, 000 1 71, 095, 904 1 55, 042, 000 214,135, 904 175,159, 908 Dec -92 40, 869, 000 53,185, 044 63, 015, 300 157, 069, 344 189, 550, 680 1992 TOTAL 1 982,270,000 768,889,416 1 815,051,600 1 2,771,053,844 2,623,759,600 JOINT WATER COMMISSION MONTHLY WATER USE DATA 1987 -1998 Month -Year GOLDEN VALLEY, gallons g CRYSTAL, gallons g NEW HOPE, gallons JWC TOTAL, gallons WATER PURCHASED FROM MINNEAPOLIS, g allons Jan -93 81, 548, 000 37, 294, 532 60, 731, 530 179, 574, 062 185, 099, 332 Feb -93 68, 906, 000 66, 900, 372 53,495, 700 189, 302, 072 166,702,272 Mar -93 41, 444, 000 56,173, 304 60, 397, 200 158, 014, 504 179, 368, 904 Apr-93 119, 023, 000 40,184, 056 59,112, 400 218, 319, 456 208, 071,160 May-93 68, 776, 000 68, 008, 908 50, 807, 300 187, 592,208 199, 483, 396 Jun -93 45, 865, 000 53, 331, 652 65, 790, 900 164, 987, 552 153, 565, 896 Jul -93 86,270,000 39,549,752 68,780,800 194,600,552 216,422,580 Aug-93 83,301,000 71,693,556 61,806,900 216,801,456 178,181,080 Sep-93 46, 962, 000 60,194, 552 75, 746, 400 182, 902, 952 232, 294, 392 Oct -93 84, 274, 000 46, 448, 556 72, 613, 800 203, 336, 356 188, 349, 392 Nov -93 80, 758, 000 80, 225, 992 55, 923, 200 216, 907,192 206, 819, 756 Dec -93 42, 551, 000 53, 766, 240 62, 539, 300 158, 856, 540 174, 614, 616 1993 TOTAL 849,678,000 673,771,472 747,745,430 2,271,194,902 2,288,972,776 Jan -94 74, 373, 000 39,180, 988 64, 546, 200 178,100,188 202, 387,108 Feb -94 77, 752, 000 70, 421, 956 53, 419, 800 201, 593, 756 190,101, 956 Mar -94 38, 456, 000 57, 705, 956 63, 466, 200 159, 628,156 172, 789, 496 Apr-94 70, 367, 000 36, 717, 348 65, 514,100 172, 598, 448 187, 937, 992 May-94 69,292,000 65,649,716 44,692,500 179,634,216 207,441,424 Jun -94 45, 865, 000 53, 331, 652 65, 790, 900 164, 987, 552 153, 565, 896 Jul -94 112, 557, 000 59, 983, 616 78, 556, 700 251, 097, 316 277, 731, 652 Aug-94 137,108, 000 92,419, 888 71, 594,100 301,121, 988 297, 358,424 Sep-94 74, 417, 000 70, 826, 624 86, 742, 200 231, 985, 824 214, 946, 776 Oct -94 120, 696, 000 50, 699, 440 77, 436, 400 248, 831, 840 203, 638, 512 Nov -94 94, 591, 000 67, 850, 332 58, 981,100 221, 422, 432 213, 509,120 Dec -94 40, 779, 000 48, 096, 400 65,222, 000 154, 097, 400 230, 298, 728 1994 TOTAL 956,253,000 712,883,916 795,962,200 1 2,465,099,116 2,551,707,084 Jan -95 79,889,000 39,206,978 65,480,300 184,576,278 220,930,028 Feb -95 82,863,000 63,099,308 46,646,200 192,608,508 192,041,520 Mar -95 42,653,000 52,856,672 63,424,100 158,933,772 170,663,680 Apr-95 74,638,000 37,218,236 61,272,600 173,128,836 190,120,656 May-95 69,147, 000 66,122, 452 50, 394, 500 185, 663, 952 205, 640, 908 Jun -95 38,680,000 62,690,628 65,644,950 167,015,578 279,416,148 Jul-95 104, 302, 000 54, 021, 308 72, 866, 200 231,189, 508 250, 589, 724 Aug-95 113, 386, 000 88, 356, 752 66, 926, 600 268, 669, 352 261, 338, 484 Sep-95 116, 001, 000 67, 770, 704 88, 308, 900 272, 080, 604 255, 703, 800 Oct -95 127,558,000 58,016,376 74,655,300 260,229,676 190,155,064 Nov -95 100,962,000 1 70,824,856 1 55,264,100 227,050,956 185,207,792 Dec -95 51, 212, 000 47, 382, 060 66, 360, 000 164, 954, 060 211, 547,116 1995 TOTAL 1,001,291,000 707,566,330 777,243,750 2,486,101,080 2,613,354,920 JOINT WATER COMMISSION MONTHLY WATER USE DATA 1987 -1998 Month -Year GOLDEN VALLEY, gallons CRYSTAL, gallons NEW HOPE, gallons JWC TOTAL, gallons WATER PURCHASED FROM MINNEAPOLIS, g allons Jan -96 78, 813, 000 31,650, 872 67, 943,300 178, 407,172 153, 033, 320 Feb -96 73,200,000 65,346,776 53,786,300 192,333,076 182,557,628 Mar -96 40, 034, 710 50, 742, 076 61, 271, 400 152, 048,186 171, 265, 072 Apr-96 72, 470, 000 42,171, 492 55, 879, 000 170, 520, 492 180, 502,124 May-96 78, 984, 000 71, 972, 560 48, 821,100 199, 777, 660 185, 726, 904 Jun -96 47, 237, 000 56, 593, 341 68, 429, 900 172, 260, 241 254, 096, 348 Jul -96 112, 970, 000 54, 571, 836 77, 289, 800 244, 831, 636 344, 702, 336 Aug-96 124, 924, 000 101,101, 924 65, 788, 400 291, 814, 324 327,154, 256 Sep-96 106, 055, 000 94, 953, 364 105,165, 800 306,174,164 343, 950, 596 Oct -96 154, 489, 000 64, 927, 896 92, 730, 800 312,147, 696 207, 694,168 Nov -96 119,608,000 86,583,992 69,602,200 275,794,192 187,286,484 Dec -96 43,699,000 61,268,680 76,451,000 181,418,680 207,707,632 1996 TOTAL 1,052,483,710 781,884,809 843,159,000 2,677,527,519 2,745,676,868 Jan -97 81,927,000 36,961,656 59,749,600 178,638,256 187,236,368 Feb -97 69,165,000 62,998,804 47,849,200 180,013,004 179,395,084 Mar -97 40,176, 000 49,131, 632 61,149, 700 150, 457, 332 169, 716, 712 Apr-97 73,670, 000 36, 883,132 57, 731,100 168,284,232 199,116, 916 May-97 79,399,000 71,071,968 47,225,100 197,696,068 224,543,616 Jun -97 60, 513, 000 75, 552, 488 75, 269, 400 211, 334, 888 358, 256, 844 Jul-97 129, 072, 000 58, 274, 436 78, 664, 300 266, 010, 736 197,125, 676 Aug-97 127, 918, 000 92, 760, 976 69, 056, 500 289, 735, 476 212, 262, 952 Sep -97 55,136,000 61,920,936 84,523,400 201,580,336 225,610,264 Oct -97 101,265,000 42,553,720 72,530,200 216,348,920 198,487,036 Nov -97 88,234, 000 65, 803, 804 53, 885, 500 207, 923, 304 193,147, 064 Dec -97 39,709,000 57,221,087 64,761,000 161,691,087 207,531,104 1997 TOTAL 946,184,000 711,134,639 772,395,000 2,429,713,639 2,552,429,636 Jan -98 83,804,000 34,940,576 60,246,700 178,991,276 178,991,276 Feb -98 78,101,000 77,435,204 47,533,200 203,069,404 203,069,404 Mar -98 41,709,000 41,526,716 61,005,200 144,240,916 144,240,916 Apr-98 70, 369, 000 27, 604,192 56, 498, 900 154, 472, 092 154, 472, 092 May-98 77,118,000 69,082,288 50,409,400 196,609,688 196,609,688 Jun -98 41,460,000 67,910,920 84,018,700 193,389,620 193,389,620 Jul -98 117,310,000 57,553,364 70,517,500 245,380,864 245,380,864 Aug-98 113,689,000 93,621,176 69,127,800 276,437,976 276,437,976 Sep-98 72,491,000 75,900,308 90,150,600 238,541,908 238,541,908 Oct -98 136, 344, 000 54, 231, 496 90, 751, 400 281, 326, 896 281, 326, 896 Nov -98 103,810,000 75,900,308 63,153,100 242,863,408 242,863,408 Dec -98 49,242,000 56,584,704 73,282,600 179,109,304 179,109,304 1998 TOTAL 985,447,000 732,291,252 816,695,100 2,534,433,352 2,534,433,352 APPEN DIX C. WATER CONSERVATION BROCHURES AN C $05230) \WSP important for healthy grass plan x " healthy tomatoes. MMMINAILM o TURFGRASS MANAGE FOR PFICIZCnNG SURFACE WATER QUALITY -o�ldina an ideal, e= iti�urment for Z - 7 01- -, ;'t - 1 and fun c - of grass Z: anrs culd be a first Stec in aav Iawn care rogl -am. A healthy, �vlacrous lawn is the best defense against artack or invasion of various pesrs. A her.lthv lawn is better able to recuperate readily from modest i-secr- or disease a :.a% I without the use of p es �cides. Creating a healthy lawn. e-ri is like any other time of ga* 'The _*r sae lands of good garder±ng practices used in vegetable and flcwe - gardens are just as appropriate for growing grass plants. The means to achieve those conditions are some-.vhat different for IaR-ns than for gardens. but are just as SOT.; F-xT'=. S-W iC-= WATER nG2 :C'L"'t:iE Following are some important lawn - awn care Practices to be considered before reach- ing for additional feztilizers and pesti rides. Limiting unnecessary fertilizers and pesticides can reduce, or possibly eliminate, potential water contamination problems from a turf site. Improving the soil Before seeding a lawn. consider adding some organic matter such as peat moss or compost to either a sandy soil or a heavier clay soil. (Add 5 - 20 percent organic matter: for example, I inch of organic matter to 5 inches of soil equals 20 percent by volume.) This helps im- prove water and nutrient retention in a sandy soil and improve the drainage and aeration chamcteristtcs of a heavier clay soil. Smaller quantities should be used on heavier clay soils. Larger quantities can be used on lighter sandy soils. Thor - o u ° -h ly mLt ng the cr: a:'c mar,.--r into th soil "- proves a;..d erZa:�Ps true root zone area for =e gMSS plants. An e.'ttensive root Svste_M occupying larger soil vol- u:. makkes the grass more capable of , ` , t:ZStandfng adverse envu-onmental conditions azid plant stresses. It is orien t=Pting to add sand to beatifer clay soils hopL ^.g to improve their d ra ' inage and aeration a on chacterristics. .�.dding only smaall amounts of sand, such as an inch or two, usually only makes the condition worse. To electively use sand to modify a heavy clay soil, san must be added in quantities of go to 90 percent by soil volume. Mat is, about 8 to 9 inches of sand for every inch of clay soil. At these high rates, sand particles begin contacting each other, thereby opening up larger soil pore spaces. In most situations, adding that amount of sand is not practical., The addition of organic matter is a better alternative. Alleviating soil compaction on =Istiag=' sites helps improve the turfgrass root - zone- Core cultivators that remove small Plugs of soil .from, the ground and depos- its them on the lawn are available from many local rental agencies. Several passes in different directions across the lawn not only put holes into the ground, but begins the process of root zone im- provement. The small soil corrs can be left on the surface to decompose natu- rally over the course of a few weeks. Severely compacted soils may need two to three treatments per year for the first two to three years. Also, the degree of play and traffic that a lawn area receives determines future frequency of core cultivation. Cultivation helps improve the water infiltration c:maracteristics of soli. thereby reducing runoff from compacted sites. Watt_ ring Prouer turf wate Ong practices can play a major role in the ag-ass plants ability to ;.aerate and resist stresses and pest oble_ms. While aooro. - _. a.te -Ty 1 to : 1/ 2 Lnc:ces per ri - k of water (fnclud- ng r are considered necessary during the growing season to keep the lawns green. the amount applied at ant one dine depends on the soil type. scndy soils Sa..nd soils do nor :old water Weil. Con - sequentl any extra :eater applied over and above the needs of the grass and mofsturc :Holding capacity of the soil si-nply moves d0'MI beyond the root zone. This represents poor use of water that may also ca=.f plant nutrients. in Particular. nitrate- nitrogen. Once nitrate: has moved beyond the root zone where Plants can c:ctmct and use it. the poten- tial for w7ater contamination increases. A'PPIYing 1/2 inch of water two or three times per week may be better suited to sandy soils. Clay /clay kx nz sons Clay and clay loam soils usually have: much. slower infiltration rates. They hold t- water much better than sandy soils and .- at times may be too wet for good grass growth to occur. Thus. larger amounts of. water can be added per application pro - viding that the moisture is not app li e d_. with such intensity that much, of it runs off before entering the soiL It is impor- tant to match the infiltration rate of the soil to the delivery rate of the sprinkler. With these soils. one 1-Inch or two 1/2- Inch applications of water per week is usually sufficient Overwatering Overwatering can cause a number of problems for the grass plant Soils that are too wet. particularly in spring and fall. can predispose the plant to some fungal disease problems, especially those associated with the root system. Keeping a film of moisture on the grass blade for long periods of tune encourages the development of some fungal diseases. ence. watering early in the day is gener- ally a better practice than watering too late -faro tine evening. SUIT METr LG:Zrir7g ri CLt'L2S Before cool - season turfs go into a state of summer dormancy, they should be prop - eriv conditioned to better withstand the dry and often hot conditions. As the summer stress period approaches. gradually stop watering the lawn. This helps the turf plant adjust to drier conditions and increases survival- Water - Ing heavily and then abruptly stopping the application of water makes the grass much less able to endure extended warm dry periods. Even with properly condi- Coned turf, applying about I /4- to I /2- inch of water every two to three weeks on a heavier soil keeps the grass plant crowns from dehydrating beyond a point of no recovery. Shorter intervals may be of M longed periocLs of high t=pe t achieve the same results. Once cooler te mpera t ures and re- sur ne regular • practices if nee ded . Irrigation schedules should be managed to replenish the water lost to evaporation and used by the plant This generally provides a healthier turf and minlrniz the potential problems associated with leaching and runoff concerns. Moog Regular mowing with a sharp mower blade and at the proper mower height keeps the grass growing vigorously so it covers the soil surface. Continually scalping the turf seriously weakens the grass plants thereby opening the door for pests and weed invasion_ For most lawn areas, mowing at a height of 2 to 3 incites provides a good quality turf for r:ost purposes. iris slightly higher —ght screens out light to the soil sur- =Ct some We= c =I bene1t. It =e': eats the estabhsi.renr_ of those weed seeds such as =,-.bg-'ass that need light to gerr^�inate. Also. a slightly higher cutting height encourages a slightly decper root syst=. ailotz,-ing roots to darner :moisture and nutt_e nts from a lar?er soil velure. This gfves the grass it Is better to y lower the cutting hc1glit—t. gradually rather than cutting back all at one time This . • • • • '• a... stress On the turfgrass plar Return grass clippings to lawn areas whenever possible. They do not contzib- ute significantly to thatch build -up. Grass clippings are a valuable organic source of nutrients. especially nitrogen (M. As they decompose. these nutricnts become available for use by the grass plant. In fact, yearly nitrogen applica- tions may be reduced by one -third to one -half where grass clippings are re- turned to the turf area. Mulching mowers and mulching attachments for existing mowers can reduce the clipping size, Increasing the rate at which grass clip- pings decompose. However, mowing on a regular basis with a sharp mower blade usually produces clippings that decom- pose fasly quickly without further size reduction. eccr^..n.e_nded n:ov,-;,ng heights for upper � -rest law are listed below. Grass clippings can be left on the lawn when rowed regularly at these heights. In- c_ easing the mowing height by 1/2 inch d the sur�.:^ can improve the lawn's abilicr to tolerate stress. Mowin .heights Kentucky bluegrass: Common or oubi.ic varieties (e.g. South Dakota Common. Park. 2 - 3" S -21. Argyle. Kenblue) Improved varieties (included in 11/2 - 2 1/2" rnost sod blends; most varieties not mentioned above) Fine fescue grasses 1 1/2-3 Perennial ryegrass 11/2-2112- Bluegrass /fine fescue mix 1 1/2-21/2 Bluegrass /perennial rvegrass mix 1 I/2 - 2 I /2" T hatch =anage=c I i n a •• e••• • . . •• ,»...... • • ..... : Thatch. a tightly Intertwined layer of such as weed invasicm • e . • . • • li g rass s • • roo prob develops between the soil surface and the area of gre= vegetation. This layer devel- Lawns that have been pocriy mnintatned • • w dead or •. f or ma requ • o• • a •. Y f w: i t Fates faster than It decomposes. eliminate weeds and fertilizers to SP . Ced.. rec over y before J 7• ' • • - While some thatch (less than 1/2 inch) gives resiliency to turf and is considered bencEcia.l, excessive amounts can cause problems. Thatch harbors several turf insect pests and provides a home for a number of turf diseases as well- Vigorous grass varieties, acidic conditions espe- cially within the thatch layer itselt low soil oxygen levels. excessively high plant nitrogen nutritional levels. and infre- quent and very high mowing heights, contribute to thatch accumulation. This can be managed with vertical mowing. core aerification, and fertilizer. These techniques keep pest problems to a minimum. reducing the need for any pesticides. Also. healthier grass plants can better use any fert-lizer nutrients teat ar e applied_ A.nd e -ganic rnate_rials. _uc as ?rass ciippings. decompose tas t er. releasi -ng Ch cse nutnents for f�_ ru. e grass plant use. Even when proper cultural pracViccs arc used. there are turtles when same pest con=! or fcnilizer supplements are nec°ssarv. For e_•cari:ple, even though all the c�±ppings are be n.a returned to the lawn area, they may not be providing enough nitrogen for the turf quality and density required. Denser turfs pro- vide better protection against runoff and leaching proble.Tns. An additional amount of fe_Ttilizer may be needed to improve the overall turf density of an area. Insects may reach serious damage Ievels in the best of lawns. Applying a proper control. chemical or biological. maybe a better choice than risking the loss of large turf areas. Turf loss to insects can practices can be resumed. For additional information regarding the responsible use of lawn fertilizers and pesticides to protect surface water quality, see the following publications. available at county extension offices. Turfgrass M=agement Practices for Protecting Surface Water guality, AG -BU- 5726 -E Using Lawn Fertilizers and Pesticides Responsibly, AG-FO- 5889 -B Responsible Use of Lau= Care Pesririries, A G-FO -589 Z -B - PftosphDrus Man,,agemz"ir Frac2ices j or , , .rs..m :G-r' G- 5892 -B VL[r Fer^�ffUz_ar Use for L=x as. -. ! G -F O- 5893 -s'3. 1 �� ?^�meC �Z rte•/C=C �10•f wnt2 iC1r,3S•Q uac2 1� ! A JoLnt publtc:adon of'.iinn=ota Z.rssian Scvice. Ur_"VC slry of .MUI :esota. and 1eWa state Uatvc -city P:CpaStd by RubesJ..iu 1 e Henaeptn Couary F' -+ =si= horticulturist, University of 1=iisuresota: Mlctmd L Ag=w. i :tension harttc.:iturist -twit and Nick E. Csristisaz. professor of hcrticuiturt. Iowa state Uar essay. 7ze Unversity of Miauesota. tacluding the Miaaesotrt sxtr_asion Service. is cc===ed to the pulley that aR P=== shalt have equal access to its programs, tacgle s and employment without regard to rue. color. cam. r='Sgion. national origin sex age: — arlial status. disability. Public assistance statics. or sexual orientati= matriSat to based upon aroric supported b the U.S, Department of Agr•.cuiture• Z=eusioa sarvscr, under specaI Project number 9 1- ETgi- 1-926s. Pabffc EaKtiatf Info ldailiJ For more information, conta : AWWA Customer Service 6666 West Quincy Avenue Denver, CO 80235 Tele. 1-800-926-7337 Conservation as a Rule Water Saving Tips for Kids by Kids 25 Facts About Water 55 Facts, Figures Water Conservation at Home It's a Natural Coloring Fu Fix a Leaky Faucet H Makes Everything Go Blue 7 Stickers By the Dawn's Early Li Be a Leak Seeker `5 Things You Can Do -� Basic 7 Ways Conse:-,re Warer Stickers the . Valve R=d Anv Good Me•-ers L=--'Y? Caution! Your Hose. etc. =c. G-r- Your Hands Diiri Dr. Wace,- - Waz--.- usc Dr. Water - Qualiry Dr. Water - Poiludon C-r-unze Ganz Lnszzil a Viale.- Atmrcr r JOINT WATER COMMISSION FIVE YEAR CIP 805230) \WSP JOINT WATER COMMISSION CAPITAL IMPROVEMENT PLAN 1998 City of Crystal Replacement of Hatch Covers (7) at Reservoir City of Golden Valley Upgrade Computer System Replace Hatch Covers (4) at Reservoir City of New Hope Well House Remodeling at North Tower TOTAL FOR 1998 1999 City of Crystal Pull #5 Pump for maintenance work Repair 24" Vaults Repair 36" Valve Vaults Upgrade existing Electric Motor #1 Pump Replace Roof at Pump Station City of Golden Valley Tower Paint Inspection at GV Tower TOTAL FOR 1999 2000 City of Crystal Pull #1 Pump for Maintenance Work City of Golden Valley Emergency Interconnect with St. Louis Park TOTAL FOR 2000 2001 City of Crystal Pull #2 Pump for Maintenance Work City of New Hope Changeout on 16" & 18" Vaults TOTAL FOR 2001 2002 City of Crystal Pull # 3 Pump for Maintenance Work Reservoir Inspection for cracks or joint leaks TOTAL FOR 2002 GRAND TOTAL for these 5 years $36,000 $95,000 $25,000 M i iii . Ito $15,000 $168,000 $200,000 $220,000 $20,000 $20,000 $25,000 $45,000 $679,000 O: \P R OJ\805230J \1303. apr99