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Water Distribution Study I I I I I I I I I I I I I I I I I I I WA1'&R DlS1".R I IIJ,JMJN STUDY SALIN~A, I(ANSAS ENGINEERINI\ REPORT 11 LS ON COMPANi~' . ENGINEERS i ARCHITECi~2t DL././ I I l' LS 0 N COMP.ANY ENGINE.E.RS .. ARC H ITECTS j ENGINEERS ARCHITECTS I PLANNERS RO. BOX 28 631 EAST CRAVVFORD AVENUE . SALINA. KANSAS 67401 . I 913 827-0433 18 August 1972 I I Honorable Mayor and City Co~~issioners City of Salina, Kansas I Gentlemen: I In accordance with your authorization we have prepared and presented here- with an engineering report covering the definition of the waterworks system improvement needs, determination of the estimated improvement costs, pro- posal of a capital improvements program and a financial requirements study. The report is entitled "Water Distribution Study: Salina, Kansas." I The study includes a review of previous studies, a hydraulic analysis of the water distribution system, and a water rate schedule analysis. I Capital improvement projects required to provide adequate service to the water system's customers are outlined. A time schedule indicating priorities for the capital improvements is proposed. I I We would welcome the opportunity to meet with you and with your representatives to discuss features of the study. I }7LSONi0" . MP~ . J>l /. t/. ,(/ {'/ A:j' /- r C,/ " [,Y . l~ .:..' (_'-'/"- (,,-'-" .- t '"1.- . Robert E. Crawfo , ( " . ."' tV tJd~7 ~ K. W. Will~,E,'i L' /; I . '. ~ (]/r i"/1 / c~' .; ,1 i craivoberts I I I -go encls (72-37) I I I SALINA. KANSAS . VVICHITA. KANSAS . ALBUQUERQUE. NEVV MEXICO I I I I I I I I I I I I I I I I I I I MAYOR Jack Weisgerber CITY COMMISSIONERS Leon L. Ashton Robert C. Caldwell Norma Cooper Mike Losik, Jr. CITY MANAGER Norris D. Olson Ron Webster, Director of Utilities Dean Boyer, City Engineer R. S. Fassnacht, Supt. Water Treatment Plant AUGUST 1972 72-37 WAR DISTRIB\. liON STUDY SAUNA, KANSAS ENGINEERINQ,. REPORT WI LS 0 N f COMPANY I ENGINEERS € . ARCHITECTS' I I I I I I I I I I I I I I I I FOREWORD We gratefu Ily acknowledge the assistance and cooperation of Water Department personnel while assembling and analyzing the tremendous amounts of data and information required for study of a water works system of the magnitude which exists at Salina. We found that extensive and complete records are maintained on all phases of Water Department operations. All records and information were readily available for use. All personnel are knowledgeable in their fields of operation and were wi lling to assist in the compilation of data and in discussing their operations in detail. WA DISTRI T.ION STU...~Y' SALINA, ENGINEERIN For clarity of presentation and review, the report presented herein is a condensation of the voluminous data and information collected and the results of the various studies and analysis. All data compiled while undertaking the detailed study of the waterworks system are on file in the Wilson and Company offices and may be examined at any time by authorized city officials. I I I I I I I I I I I I I I I I I I I I I I TABLE OF CONTENTS Page No. SUMMARY OF RECOMMENDATIONS General 2 Salina Water Study 1968-2010 2 Water Treatment Plant Improvements 4 Distribution System Improvements 5 Capital Improvements Program 6 Financial Program 7 DISTRIBUTION SYSTEM ANALYSIS General 10 Methodology 11 Conclusions 13 Recommendation 15 CAPITAL IMPROVEMENTS PROGRAM General 16 Billing System 18 FINANC IAL PROGRAM General 20 Capital Improvements Program 20 Water Rate Study 22 Purpose 22 Scope 22 Population 22 Water Consumption 23 Revenue Requirements 23 Allocation of Cost of Service to Cost Functions 26 Allocation of Costs to Customer Classes 29 Development of Rate Schedules 35 City Codes; Policies, Rules and Regulations 40 Recommendations 42 APPENDIX A - Present Water Rates Schedule APPENDIX B - Water Distribution System; Test Model APPENDIX C - Water Distribution System; Peak Flow Model; Existing Conditions APPENDIX D - Water Distribution System; Peak Flow Model; 5-Year Improvements APPENDIX E - Water Distribution System; Peak Flow Model; Long-Range Improvements APPENDIX F - Water Rate Comparison by Average Monthly Usage APPENDIX G - Water Rate Comparison - Kansas Cities with Treatment Plants I I I I I I I I I I I I I I I I I I I SALINA, KANSAS WATER WORKS SYSTEM STUDY PREFACE This Report has been prepared for the purpose of updating the improve- ment planning for Salina's Water Works facilities, including water sources, treatment, distribution and storage. The study includes a review of earlier Engineering Reports and Water Department Staff Reports, a complete hydraulic analysis of the water system, a review of the Capital Improvements Program and a study of the water rate structure with recommendations for such changes in the structure as may be required to produce adequate revenue for operating expenses, debt retirement and capital improvements. Many of the recommended capital improvements have been discussed in detail in earlier Engineering Reports and are not covered in as much detail in this Report. However, the specific water distribution improvements, principally the arterial water mains, are recommended as the result of the current hydraulic analysis of the system. Cost estimates for previously recommended short-range improvements have been revised to reflect anticipated construction cost levels. 1 I I I I I I I I I I I I I I I I SUMMARY OF RECOMMENDATIONS GENERAL Two earlier Wilson & Company engineering studies analyzed in detail the short- and long-range water supply needs of Salina water treatment plant expansion and disposal of water treatment plant wastes. These studies contained recommendations for solutions to the problems and estimates of the costs. SALINA WATER STUDY 1968-2010 (Report) This report was a long-range study prepared in 1968. With regard to the future source of water for Salina, a plan ("Plan B" in the Report) was recommended where the total water sup~ly would be obtained for a combination of sources; a local well field, the Smoky Hill River, and Kanopolis Reservoir. It was recommended that the City request a yield of 10,000 acre feet of water from Kanopolis Reservoir, to be transported, as far as possible, through the Kanopolis Irrigation District North Canal. However, it was suggested, if water from this source was not assured by 1975, the City should proceed with one of the other plans recommended as alternates. The Bureau of Reclamation's Planning Report for the Kanopolis Irrigation District was completed early in 1972. Due to allocations of large portions of the construction and maintenance costs to the City of Salina, the use of the north canal for conveying water from Kanopolis to Salina was not considered economical and was not included in the irrigation district plan. I I I The next most economical alternate plan recommended, identified as "Plan C," involves the use of local well fields, the Smoky Hill River and Kanopolis Reservoir as the sources of water for Salina. This plan would require the 2 I I I I I I I I I I I I I I I I I I I eventual construction of pretreatment and pumping facilities at Kanopo1is Reservoir and a pipeline of 16 mgd capacity from the Reservoir directly to the water treatment plant, or plants, in Salina. Another alternate, identified as "Plan D," involves the use of local well fields, the Smoky Hill River and Milford Reservoir as the sources of water for Salina. In addition to the expansion of the local well fields, pretreatment and pumping facilities would be required at Milford Reservoir and a pipeline would have to be constructed to convey the water from Milford Reservoir to Salina. This plan would assure Salina of the best quality of water of any of the plans studied. The "Local Well Fields" referred to above include 5 areas in which geological information indicates that ground water supplies are avail- able. These are as follows: 1. The present well field within the City Limits of Salina. 2. The area in the vicinity of Ohio and Pacific, which was explored in 1957 and discussed in the Engineering Report entitled "Water Supply Explorations," dated May 1957. 3. The "Schilling Well Field," in the vicinity of the Schilling Water Treatment Plant. 4. The ''Mentor Well Field," a partially explored area about two miles south of Mentor. 5. The "Assaria Well Field," a partially explored area about one mile southeast of Assaria. 3 I I I I I I I I I I I I I I I I I I I The 1968 Report recommended. a detailed ground water investigation covering the Smoky Hill River Valley from the north side of Salina to the vicinity of Bridgeport. This investigation would include additional test drilling and an analog model study, the results of which would furnish reliable information as to the ultimate water yield of the area, the specific locations for well fields, the general characteristics of the water quality, and the rates at which withdrawals could be made from each well field. The ground water investigation should be included in the current Capital Improve- ments Program, to provide additional information on which to consider the long range water supply requirements. The long-range aspects of the 1968 report included the construction of a second water treatment plant, to be located in the vicinity of the present Schilling Water Treatment Plant; and the construction of a second river intake in the same vicinity. The 1968 Report also made recommendations regarding the long-range require- ments of the water distribution and storage facilities, particularly the size and location of arterial mains and of new elevated storage tanks. The recommendations as to arterial mains within the present distribution system were made without the benefit of a hydraulic study of the system. Such a study has been made as a part of the current Engineering Report and the size, locations, and estimated costs of the new mains have been up-dated. WATER TREATMENT PLANT IMPROVEMENTS (Report) This Report was prepared in 1970. It recommended the expansion of the treat- ment basins and secondary settling basins to provide a total water plant capacity of 20 mgd. In addition, the Report recommended facilities and methods for reclaiming sludge for calcining and disposing of plant wastes unsuitable for calcining. Water Treatment Plant waste disposal facilities meeting State and Federal regulations must be in operation by December 1975. 4 I I DISTRIBUTION SYSTEM IMPROVEMENTS I I I I I A hydraulic analysis performed as part of this study of the existing Salina water distribution system revealed the following items: I I I I I I I I I 1. Under average loading conditions (the quantity of water demanded by all the City's customers on a normal day) adequate pressure is maintained throughout the City with the existing water distribution system. 2. Under peak loading conditions (the quantity of water demanded by all the City's customers on an extremely hot day) three general areas of low pressure occur. These areas are the section of town north of Euclid Street, several blocks of town surrounding the inter- section of Minneapolis and.Ohio Street and the section of town extending north and south several blocks from west Crawford Street. 3. The general lack of a complete system of large arterial mains is causing high velocities in the smaller distri- bution pipes which are trying to serve the function of the missing arterial mains. This causes high pressure loss resulting in low pressure areas as well as a dis- lodging of material deposited on the pipeline walls resulting in customer complaints. In order to correct or lessen the deficiencies found in the water distri- bution system, several improvements are required. It is recommended that the improvements tabulated in Table 1 be constructed in the next 5 years and that the long range improvements illustrated in Plate 2 be used as a guideline in an attempt to avoid future problems. I I I 5 I I I I I I I I I I I I I I I I I I I CAPITAL IMPROVEMENTS PROGRAM In order to provide a unified approach toward water system improvements, a Capital Improvements Program has been developed. This Plan, described in Table 1, lists 15 major improvements needed in the next 5 years in order that the water utility be able to provide adequate service to its customers and comply with existing regulatory requirements. It is recommended that this Capital Improvements Program be implemented with the realization that it provides a highly useful guideline but can be modified if final design analysis dictates. 6 I I I I I I I I I I I I I I I I I I I TABLE 1 SALINA, KANSAS WATER DISTRIBUTION STUDY CAPITAL IMPROVEMENTS PROGRAM CONSTRUCTION PROJECT COSTS WITHOUT POSSIBLE WITH PROJECT NAME PROJECT DESCRIPTION PRIORITY START COMPLETE GRANTS GRANTS GRANTS WTPPLANTIMPROVEMENTS Expansion of capacity and new 1 1973 1975 $1,000,000 $460,000 $540,000 sludge disposal facilities at the water treatment plant. GROUND WATER SURVEY Ground water survey of the 2 1973 1973 50,000 - 50,000 Smoky Hill Valley. SOUTH U.S. 81 MAIN 12" main along U.S. 81 from 3 1973 1973 67,000 28,000 39,000 Wayne to Magnolia & 12" main to Key. MAGNOLIA MAIN 18" main along Magnolia from 4 1973 1973 61,000 26,000 35,000 U.S. 81 to Key Acres Tower. EAST WAYNE MAIN 12" main along Wayne from 5 1973 1973 62,000 26,000 36,000 4th to Ohio. CLOUD CONNECTOR 12" main along Cloud from 6 1973 1973 13,000 5,000 8,000 Dover to Haskett. MARYMOUNT ROAD MAIN 20" main along Marymount 7 1973 1973 71,000 30,000 41,000 Road from Glen to Crawford. SOUTH SANTA FE MAIN 30" main along South St. 8 1974 1974 95,000 40,000 55,000 from WTP to Santa Fe then along Santa Fe to Crawford. WEST CRAWFORD MAIN 18" main along Crawford 9 1974 1974 113,000 47,000 66,000 from Santa Fe to Broadway. EAST CRAWFORD MAIN 30" main along Crawford 10 1975 1975 184,000 77,000 107,000 from Santa Fe to Ohio. SOUTH OHIO MAIN 20" main along Ohio from 11 1975 1975 381,000- 160,000 221,000 Crawford to Cloud & 18" main along Ohio from Cloud to Magnolia & 18" main along Magnolia from Ohio to Key Acres Tower. NORTH 4th MAIN 20" main along 4th from WTP 12 1976 1976 285,000 120,000 165,000 to Ash then along Ash to Front then along Front to Lincoln & 20" main along Lincoln from Front to the Downtown Tower at Santa Fe & Lincoln. NORTHEAST MAIN 18" main along Front from 13 1977 1977 229,000 96,000 133,000 Lincoln to Euclid then along Euclid to 9th (new Thomas Park Tower). THOMAS PARK TOWER 0.5 mg. elevated tower in 14 1977 1977 236,000 99,000 147,000 Thomas Park Area. NORTHWEST MAIN 12" main along Grand from 15 1977 1977 123,000 52,000 61,000 Woodlawn to 9th then along 9th to Euclid (new Thomas Park Tower). TOTAL CAPITAL IMPROVEMENT PROGRAM COSTS $2,970,000 $1,266,000 $1,704,000 (72-37 \\\ t \ ")2~)- ,l~",,~ "l, \-;"'1 , \. I \ ~~~ J - "--1\fE~~\ ~E~",~ ,'--- C( /{~r- I ~ \ '~~ F \ 1 ~ I \'. \ ~I \ I, --\ -~- ~ , I j ; 47 I. I //=;;;,( -.f -.-.-.... _..l;.":'.:iml''':.Il:I';..,(_.~~.l -11 24" .-J HIGH LEVEL SOUTH SYSTEM ~30" 'I ~ ~ ~li - __ J , =~R si~~!:~ ~"T.l"=",, SERYICE PlJI31trl; STATUJi---E-.:J n /' i ------\- .---_.--- --+- H PLATE 2 WATER DISTRIBUTION STUDY CAPITAL IMPROVEMENTS PROGRAM j .-!:...- EXISTING ARTERIAL MAIN " "" / '. ,. \ \ \ i \ \ i I \ \ 1\ i i I! I , ! i! ~ PROPOSEO ARTERIAL MAIN (Capital Improvements Program) ---242-- PROPOSEO ARTERIAL MAIN (Long Range Improvement) & & If' PROPOSED PRESSURE REOUCING ,SJATI II , ! , I 1 ( \\ \ \ \ '\\''-'-~--'-''-'-'---'" """" '." WA llER~,"-~t ~IS~~ff1'1lg~ \~'" ,;;;t"iiNA. ENGINEERIN W/LS\ ,~COMP y I i4''WOll'lf.E.R-~ 'J':::'"""" ~. '? ,:... t ;..........L " - -1 /' " "> 12" I .1 Iia Iii iii [If rl r I I I I I I I I I I I I I I I I I I I FINANCIAL PROGRAM It is recommended that the total annual costs incurred by the Water Department be financed through the collection of revenue from the sale of water. It is further recommended that the Capital Improvements Program be financed through the issue of revenue bonds and retired through revenues from the sale of water. If no federal grants are obtained to aid in the financing of the Capital Improvements Program, then it is recommended that the proposed Water Rate Schedule shown in Table 2 be adopted. If federal grants can be obtained to aid in the financing of the Capital Improvements, then it is recommended that the proposed Water Rate Schedule shown in Table 2A be adopted. The proposed rate schedules should provide sufficient revenues to meet the Water Departments obligations and recover cost of service in an equitable manner. The present water rate schedule appears in Appendix A. 7 I I TABLE 2 I I I I PROPOSED WATER RATE SCHEDULE WITHOUT GRANTS Rates Inside City First Next AllOver 2,000 cubic feet @ 46 cents per 100 cubic feet 28,000 cubic feet @ 29 cents per 100 cubic feet 30,000 cubic feet @ 27 cents per 100 cubic feet Monthly Minimum Charges Meter Size Minimum Charge Cubic Feet Allowed I I 5/8" 3/4" 1" 1-1/2" 2" 3" 4" 6" 8" $ 2.20 3.40 4.35 7.10 8.75 16.25 88.00 123.00 145.00 300 500 600 1,000 1,100 2,000 25,000 30,000 30,000 I I I I I I I I I I I Multiple users served by a master meter charged 46 cents per 100 cubic feet for all water consumed in excess of the minimum Rates Outside City Minimum charge is 1.25 times minimum charge for water consumed inside City. Water consumed in excess of minimum is the regular rate plus 25 percent thereof. Multiple Residential or Rural Water District customers served by a master meter are charged 57.5 cents per 100 cubic feet for all water consumed in excess of the minimum. 8 I I I I I I TABLE 2A PROPOSED WATER SCHEDULE RATE WITH GRANTS Rates Inside City First Next AllOver 2,000 cubic feet @ 39 cents per 100 cubic feet 28,000 cubic feet @ 27 cents per 100 cubic feet 30,000 cubic feet @ 24 cents per 100 cubic feet Monthly Minimum Charges Meter Size Minimum Charge Cubic Feet Allowed I I I I I 5/8" 3/4" I" 1-1/2" 2" 3" 4" 6" 8" $ 2.00 3.10 3.90 6.50 7.95 14.75 77.00 110.00 125.00 300 500 600 1,000 1,100 2,000 25,000 30,000 30,000 Multiple users served by a master meter charged 39 cents per 100 cubic feet for all water consumed in excess of the miminum I I I Rates Outside City Minimum charge is 1.25 times minimum charge for water consumed inside City. Water consumed in excess of minimum is the regular rate plus 25 cents thereof. I I I I I Multiple Residential or Rural Water District customers served by a master meter are charged 48.75 cents pr 100 cubic feet for all water consumed in excess of the minimum. 9 I I I I I I I I I I I I I I I I I I I DISTRIBUTION SYSTEM ANALYSIS GENERAL This section of the Report examines the distribution of water from the treatment facilities to the individual users within the City during periods of peak consumptions. The distribution and storage system includes underground and overhead storage, high service pumping stations, arterial mains and distribution mains, valves and hydrants. While all of these are important parts of the water distribution system, the scope of this Report is limited to pumping, storage and arterial mains. Supply points to the distribution system are fixed items; i.e., they cannot be moved from one place to another. Pumping stations, as supply points, can be economically increased from time to time to deliver more water, higher pressure, or both. Underground and overhead storage cannot be economically changed (after once being constructed) to yield either more water or higher pressure. Therefore, the arterial main system must provide for adequate distribution of water. Taken as a whole, these water works facilities interact to form a complex, dynamic system. Advance planning must be performed to insure that as the City grows, each new area receives sufficient water at an acceptable pressure without jeopardizing these same factors in the established parts of the City. The arterial mains are the "backbone" of the water dis'tribution system. If they are not properly sized and routed, much of the effectiveness of the other water works facilities, no matter how well designed, is lost. Several situations representing heavy demands on the water system were analyzed. Fire demands, which in a smaller town are the heaviest loading conditions, represent a smaller loading than peak consumption demands in larger cities. While localized areas between arterial mains may have problems in handling fire loads, the arterial mains (improved as recommended) 10 I I I I I I I I I I I I I I I I I I I will satisfy the basic function of carrying the required volume of water at the necessary pressure to within close proximity of any area in the City. The study of small, localized deficiencies within the system is beyond the scope of this Report. The Water Department is continually pinpointing these areas and correcting them on an annual basis within the limits of its budget. METHODOLOGY In order to plan for future development as well as solve the immediate problems of the water distribution system, it is necessary to analyze the effect improvements to the system would have before they are actually constructed. This analysis is based on the judgment and experience of the consulting engineer and aided by a series of mathematical simulations of the water distribution system. The analysis of the mathematically simulated system is based on the Hardy Cross method of hydraulic network solution. This method is a trial and error method in which the adjustments to be made in the assumed values are computed and therefore controlled. The solution is effected by the method of balancing head losses which are calculated using the Hazen-Williams formula. The complexity of the water distribution system for a City the size of Salina is substantial. Also, the trial and error method used in the computations can require as many as 2,000 separate equation solutions for a single proposed modification to the water distribution system. For these reasons, the solutions were effected through the use of a digital computer. The use of the computer reduces the time required for a single solution, thereby enabling a greater number of proposed projects to be analyzed. 11 I I I Salina's water distribution network was reduced to an equivalent skeleton system. This skeleton system contained approximately 160 equivalent pipes which simulate the water distribution system's response to quantity of flow and pressure. I I In order to check the model, tests were conducted on a relatively warm day in June 1972. The tests included monitoring the quantities of flow and pressure of the pumping and storage facilities supplying water to the system. Also, the residual pressures were checked at various locations throughout the system. The test period represented a slightly higher than average consumption period for the City. I I I The water flowing into a system at any time period is equal to the water consumed and/or placed in storage during that same time period. The con- sumption for the test period was distributed throughout the model, in proportion to the average use of a peak month (August 1970). This infor- mation was supplied from the City's metering records. I I I The City was divided into 99 subdivisions. Each subdivision's consumption was then summed from the metered consumption of the users contained therein. The subdivision boundaries were fixed in a manner such that they encircled a node (intersecting pipes of the skeleton distribution system). The with- drawal of the summed consumption within the subdivision at its respective node simulates the actual condition of consumption being withdrawn from several points along branch pipes crisscrossing the subdivision. The combined supply and consumption data were analyzed and compared against the residual pressure test data for verification. The model was adjusted and re-analyzed until it correlated with the test data. I I I I I The mathematical model of the existing water distribution system was then altered to simulate proposed improvements. The results were then analyzed and modified to compensate for errors inherent in simulation. I I I 12 I I I I I I I I I I I I I I I I I I I The results of the modified. models are illustrated in the Appendices. These illustrations indicate trends which point out the relative differences between various points within a single model and the relative difference between the same point on different models. CONCLUSIONS The recommended improvements to the distribution system are shown on Plate 2. They are also tabulated in the Capital Improvements Program, Table 1. In order to properly locate and size the improvements, eight conditions were analyzed through mathematical simulation techniques, previously discussed. Four of these conditions or models are presented in the Appendices. Each Appendix shows the residual pressure contours overlain on the map of Salina. These contours indicate the pressure in the arterial mains at any given point. A user would have an actual pressure from 3 to 15 psi less than shown because of the pressure loss from the smaller distribution mains and the user's service line and meter. The models illustrated are as follows; Distribution System; Test Model - (See Appendix B) This model represents a slightly higher than average water demand on the existing system and indicates in general that adequate pressure is maintained throughout the City on average days with the existing water distribution system. Distribution System; Peak Flow Model; Existing Conditions - (See Appendix C) This model represents the largest water demand on the existing system that is expected to occur in the next 5 years. It indicates that the existing system has several deficiencies which prohibit the system from providing 13 I I I I I I I I I I I I I I I I I I I certain areas of the City with adequate quantities of flow and pressure under peak loading conditions. These deficiencies are not noticed on average days of usage but would become very apparent, for example, if a fire would occur in one of the indicated low pressure areas during a hot summer day. Also, new service that is continually being furnished to expanding areas of the City will tend to worsen the indicated deficiencies. There are three general areas of the City which are deficient. The first is that area located north of Euclid Street. This area is serviced by a single 8-inch main extending along U. S. Highway 81. A high demand in this area will cause an extreme loss of pressure. The second area lies between the Key Acres tower and the High Service Pump- ing Station, located at the water treatment plant. This low pressure area is centered around Minneapolis and Ohio Streets, and extends radially with lessening effect. Another area lies between the Sunset tower and the High Service Pumping Station. This low pressure area forms a trough along west Crawford Street and extends north and south of Crawford Street with lessening effect. Distribution System; Peak Flow Model; 5-Year Improvements - (See Appendix D) This model represents the largest water demand on the system improved as recommended, that is expected to occur in the next 5 years. It indicates that the recommended improvements should allow the system to provide adequate quantities of flow and pressure to all areas of the City, under peak flow conditions, with one possible exception. This exception is the area north of Euclid Street. This area should receive much improved service as a result of the recommended improvements. However, if accelerated future growth should definitely occur in this area, the existing 8-inch main serving the area will have to be supplemented. This has not been provided for in 14 I I I I I I I I I I I I I I I I I I I the recommended improvements for the next five years. However, it should be recognized that final design analysis may dictate an additional arterial main to serve this area, and in that case the project cost will have to be added to the Capital Improvements Program. Distribution System; Peak Flow Model; Long Range Improvements - (See Appendix E) This model is used to determine overall guidelines for the water system in order that all improvements would complement an overall plan. The model is only an estimate, subject to any number of changes, but the results help set general trends which can reasonably be expected to occur. RECOMMENDATION System analysis should be repeated at.intervals of not more than five years, and preferably two years, to investigate changing conditions and requirements, and update the overall master plan. 15 I I I I I I I I I I I I I I I I I I I CAPITAL IMPROVEMENTS PROGRAM GENERAL The City of Salina should provide water utility facilities in advance of the demands of its residents and industrial needs. In almost every instance these additions, extensions and improvements should be designed and sized to be sufficient for a reasonable period of continuing future community growth. In other instances the new facilities must be designed and provided to comply with changing regulatory requirements. The demands and needs of private citizens, business and industry for municipal water utility services are seldom static. On the contrary, experience has proven that the community, as a whole, expects more and better services and facilities. Each project included in the Capital Improvements Program is considered essential to provide services to existing areas of the City and provide for orderly development of expanding areas of the City. Improvements and extensions to the water utility system must be programmed and constructed within the time frame of realistic forecasts of growth. The projects included in the Capital Improvements Program have been selected as the result of careful analysis with respect to existing or potential deficiences, conformance with new or anticipated regulatory requirements, and expansion to serve new growth areas. The Capital Improvements Program presented in Table 1 is for the five year period from 1973 to 1977. Long range capital improvements are discussed thoroughly in the "Salina Water Study, 1968-2010" prepared by Wilson & Company, in October of 1968. Both short and long range capital improvements in regard to the water distribution system are illustrated on Plate 2. 16 I I I The Capital Improvements Program presented in Table 1 lists the proposed projects in order of priority and shows for each project the anticipated construction dates and the estimated project cost. The projects are grouped according to purpose and described in Table 3. I I TABLE 3 Project Priority Numbers Description I 1 This project provides improvements to the existing Water Treatment Plant. These improve- ments will stop the discharge of plant wastes to the Smoky Hill River as required by Federal Regulation and provide for expansion of treat- ment facilities in the plant. I I 2 This project provides for a detailed ground water investigation of the Smoky Hill Valley. I 3, 4, 5 & 6 These projects provide an upgraded water system connection between the areas surrounding the Sunset Tower and the Key Acres Tower in order to provide adequate quantities of flow and pressure to these areas during peak hourly demands and fire demands. I I 7 This project provides an upgraded water system connection between the existing Gypsum Hill Tower and the area surrounding the intersection of east Crawford Street and Marymount Road. I I 8 & 9 These projects provide an upgraded water system connection between the existing high service pumping station located at the Water Treatment Plant and the existing 12-inch arterial main serving the entire west side of the City. I 9 & 10 These projects provide an upgraded water system connection between the existing high service pumping station area and the entire west area of the City south of Crawford Street. I I 12, 13, 14 & 15 These projects provide upgraded water system connections between the existing high service pumping station, the existing tower on the north edge of the central business district, the area of the City north of North Street and the pro- posed Thomas Park Tower. Also provided is a new tower located on the south edge of Thomas Park. I I 17 I I I I I I I I I I I I I I I I I I I I BILLING SYSTEM General As the number of accounts grows in the Water Department, billing systems which will handle greater volume in the same amount of time require investigation. The number of accounts which makes a conversion economical, is governed by the individual requirements of the Department. Several factors must be weighed. It is beyond the scope of this Report to make specific recommendations as to billing procedures or equipment. How- ever, four basic billing systems are briefly described with the knowledge that several variations of these systems are available and those listed are to be used merely as guidelines in long range planning. No specific recommendations are made for the five year Capital Improvements Program. The approximate costs are based on 1972 prices. Off-Premises Operation This operation would entail the least cost. However, it also allows the least flexibility and the greatest reduction of Department office personnel. The meter readings operation would remain as it is now. However, the Water Department would buy a key punch machine (approximate cost $9,000) and transfer the meter readings onto cards. The cards would be given to the off-premises operator who would calculate and print the bills. The general department accounting would also be done in a similar manner. The approximate cost would be $900 per month. Magnetic Ledger System This operation would require a computer system located in and operated by the Water Department. This system would make use of a separate ledger sheet for each account which would be placed in the computer and then the latest meter reading typed in the computer. The bill would be calculated and 18 I I I printed by the computer and the latest meter reading entered on the account's ledger sheet. The ledger sheets would be filed and not stored in the computer. General Department accounting would be done in a similar manner. This system does not allow for future upgrading or rapid retrieval of information concern- ing accounts such as desired to answer customers' questions. The approximate cost would be $22,000 for purchase, or $650 per month for lease, and the expense of retraining certain Department office personnel. I I I Batch Processing System I This system would require a key punch for supplemental use (approximate cost $9,000). However, the actual meter reading recording would be done by an optical scanner which would read the meter readings directly from the numbers written down by the meter reader. The computer would calculate and print the bills and handle general Department accounting. An on-line inquiry unit would make information concerning a customer's account instan~ly avail- able to the person answering the questions. However, the actual billing operation would have to be scheduled at a different time than the normal office hours when questions are answered, since these two units could not operate simultaneously. A software package would have to be purchased. This software package entails the actual programs necessary to instruct the computer's operation and would cost approximately $30,000. The approximate cost, excluding those items already mentioned, would be $3,100 per month for the system, and the expense of retraining certain Department office personnel. I I I I I I I I Multi-Processing System I This system is the same as the "Batch Processing System" but would allow simultaneous operation of billing and on-line inquiry. This system would also be used by other departments for their functions. The approximate cost of the software package would be $60,000 and the monthly lease cost would be approximately $8,500. This system allows the greatest flexibility for future updating. I I 19 I I I I I I I I I I I I I I I I I I I I FINANCIAL PROGRAM GENERAL The operation, maintenance and extension of the Salina Water System may be financed by general taxes, revenue from the sale of water or a combi- nation of the two. The primary function of the water system is to supply a necessary commodity to its customers and provide the service attendant to that commodity. However, it also affords certain benefits to the municipality as a whole. It safeguards public health, improves property values, and contributes to fire protection. Except for fire protection, these benefits are intangible and their values have no established base. Any attempt to establish values for these intangible benefits would be arbitrary and open to legitimate debate. The policy of Salina in the past has been that the interests of the pu~lic and individual customer is best served by a self-sustained water utility. It is recommended that this policy be continued on the basis of being more equitable than the use of general taxes which are based on property values and have no correlation to cost of service incurred by the water system. Although fire protection could be correlated to property values and the cost of this service paid through general taxes, it is recommended at this time that the cost of this service be paid through the proposed water rate schedule. This is in keeping with past policy. CAPITAL IMPROVEMENTS PROGRAM The amount of monies required to implement the Capital Improvements Program dictates that financing of the Program be by revenue bonds retired on an annual basis throughout their tenure. 20 I ~ ~ I , li'\ ,. I \ I / The present combined Water and Sewage System indebt~:ess was initially / incurred in 1961 for a face amount of $3,600,000</ The ordinance authorizing this issue places some restrictions on new bond issues, the details of which are beyond the scope of this Report. However, additional revenue bonds can be issued without excessive penalties. I I In order to project future bond and interest expense, it has been assumed that the existing bond and interest debt payments will continue as described by the 1961 ordinance and that additional revenue bonds will be issued for purposes of financing the proposed Capital Improvements Program. It is further assumed that the additional revenue bonds will be repaid on the basis of equal annual principal and interest payments calculated for a 20-year life at 5-1/2 percent interest. An annual net operating income to debt ratio of 1.40:1 was used for purposes of this Report. I I I I I The amount of the required bond issue,will depend upon the amount of federal and state grants that the City can acquire. Approximately $500,000 of the proposed program is for improvements at the Water Treatment Plant, which are eligible for a 50% federal grant from the Environmental Protection Agency (EPA) and a matching 25% long-term loan from the State of Kansas. In the past, the EPA grants program has been adequately funded and the time required for obtain- ing a grant has been only contingent on processing the required applications. However, the long-term loan program from the State of Kansas is new and no loans have yet been granted. I I I I The remaining improvements to the Water Treatment Plant are eligible for a 42% (approximate percentage based on past averages) federal grant from the Department of Housing and Urban Development (HUD). The Ground Water Survey Project is not eligible for federal grants, but all of the remaining projects in the Program are eligible for HUD grants. I I I I 21 I I I I WATER RATE STUDY I Purpose I This section represents the results of a study of the City of Salina's existing water rate structure and a recommendation for a new water rate structure which will meet the City's future operating expenses and finance the proposed Capital Improvements Program. I I Scope I This study includes a review of Water Department income, expenditures and debt retirement for the years 1962 through 1971, inclusive. Consideration was given to the changes that could occur in the future period of 1973 to 1982. Debt retirement from past and proposed capital improvements was analyzed and is included in this study. The year 1970 is considered repre- sentative of normal conditions and all calculations are based upon the relative water usage and revenue for that year. I I I Population I A decrease in population has occurred in Salina from 43,202 in 1960 to 37,714 in 1970. This drop was due to a number of inter-related factors, most notably the closing of Schilling Air Force Base for military purposes. However, the Air Force Base facilities, having been transferred to the City of Salina, are proving to be catalyst for light industrial and commercial growth. Other factors also indicate a growth in the future. Therefore, a modest growth in population from 38,000 in 1973 to 41,300 in 1982, has been projected for the City of Salina for use in this Report. I I I I I I 22 I I I I I I I I I I I I I I I I I I I I Water Consumption Water consumption has increased in Salina, from 90 gallons per capita per day in 1962, to 124 gallons per capita per day in 1971, an increase of 38% per person. However, more importantly, yearly metered consumption has increased from 189.84 million cubic feet in 1962 to 229.54 million cubic feet in 1971, an increase of 21%. These trends are expected to continue in the future. Therefore, the average daily consumption in gallons per capita per day is expected to increase from 125 in 1973 to 134 in 1982, an increase of 7%. Yearly metered water consumption in million cubic feet per year is expected to increase from 231.8 in 1973 to 270.1 in 1982, an increase of 17%. These projections are conservative to insure sufficient revenue in abnormal years. Specifically, if an unusually high precipitation year is experienced by the City, the quantity of water sold and therefore the revenue collected will decrease. However, during this same year, the City's operating expen~es and debt retirement obligations will decrease little, if any. Revenue Requirements A. General The attached table entitled "TABULATION OF WATER DEPARTMENT EXPENDITURES AND REVENUES; 1962 THROUGH 1971" shows the amounts of revenues and expendi- tures in the past; and the attached table entitled "TABULATION OF ESTINATED WATER DEPARTNENT REVENUE REQUIREMENTS; 1973 THROUGH 1982" shows the amounts of expenditures that can be expected in the future. These tabulations include the following expenses: "Water Supply Expenses" consist of the maintenance and power costs associated with the operation of the supply wells and river intake structure. 23 I I SALINA, KANSAS TABULATION OF WATER DEPARTMENT EXPENDITURES AND REVENUES 1962 THROUGH 1971 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 GENERAL POPULATION 43,090 40,649 41,293 38,706 39,278 38,024 38,110 39,013 37,714 37,925 WATER PUMPED (million gallon/year) 1832.98 1872.87 1866.79 1617.55 1746.20 1790.32 1958.39 2039.19 2231.62 2152.72 PERCENT OF WATER METERED 77.5 76.6 79.8 77.9 81.4 76.2 79.3 80.5 78.3 79.1 WATER METERED (million cubicfeet/year) 189.84 191.80 199.18 168.49 190.16 182.36 207.52 219.32 233.69 229.54 METERED CONSUMPTION (cubic feet/capita/day) 12.1 12.9 13.2 11.9 13.3 13.1 14.9 15.4 17.0 16.6 (gallons/capita/day) 90 97 99 89 107 98 112 115 127 124 COSTS Supply (centS/100 cubic feet) 0.84 0.54 0.83 0.49 0.39 0.94 0.73 0.78 0.55 0.42 Treatment (cents/l00 cubic feet) 7.11 7.13 7.90 6.81 7.08 7.48 7.60 8.24 9.54 8.78 Pumping (cents/l00 cubic feet) 1.24 2.10 1.98 2.67 2.29 2.61 2.45 2.36 2.05 2.21 Distribution (cents/100 cubic feet) 2.39 1.93 2.16 3.03 3.11 3.83 3.34 3.95 3.95 3.67 Customer Accounting (cents/l00 cubic feet) 3.26 4.18 4.31 4.12 3.78 3.80 3.63 3.52 3.48 3.75 Administrative (cents/l00 cubic feet) 1.55 2.01 1.94 2.95 2.62 2.89 3.59 3.51 3.60 3.78 Bond & Interest (cents/100 cubic feet) 10.75 10.09 8.99 8.77 5.99 6.51 5.88 5.44 5.02 5.02 Total 27.14 27.99 28.11 28.83 25.26 28.07 27.21 27.76 28.20 27.64 EXPENDITURES WATER SUPPLY EXPENSES Utilities. Well $ 4,464 $ 2,877 $ 5,084 $ 1,967 $ 2,108 $ 2,516 $ 2,420 $ 5,036 $ 6,264 $ 4,597 Utilities - River Intake 10,570 5,552 5,738 1,960 1,983 1,690 2,013 1,613 1,854 1,918 Maintenance 92 1,266 4,968 3,299 2,057 11,596 8,965 8,497 2,839 1,347 Well House Signals 810 743 810 957 1,174 1,438 1,666 1,994 1,858 1,840 WATER DEPT. SHARE $ 15,936 $ 10,437 $ 16,600 $ 8,183 $ 7,322 $ 17,240 $ 15,064 $ 17,139 $ 12,816 $ 9,702 SOFTENING AND TREATMENT EXPENSES Supervision - 8,850 9,258 9,541 9,577 9,596 9,891 9,959 18,216 21,528 Salaries 39,99dJ. 25,896 26,356 26,415 28,681 31,536 35,766 39,654 40,714 43,137 Utilities, Supplies & Chemicals 92,796 97,764 107,982 74,358 89,824 89,377 108,380 122,119 152,896 129,987 Maintenance 2,277 4,214 13,820 4,346 6,623 5,850 3,620 8,923 11,171 6,854 WATER DEPT. SHARE $135,063 $136,722 $157,417 $114,660 $134,705 $136,359 $157,657 $180,655 $222,995 $201,505 PUMPI NG EXPENSES Supervision - 8,677 9,105 9,484 9,544 9,929 10,688 10,657 10,676 13,340 Salaries 16,35D 16,807 17,639 18,064 18,186 18,918 20,303 21,647 21,409 25,910 Utilities 5,158 13,026 10,718 14,432 14,464 16,698 17,533 18,398 14,219 9,642 Supplies 209 467 287 743 789 855 1,286 414 1,243 1,239 Maintenance 1,806 1,316 1,591 2,273 529 1,218 952 693 470 664 WATER DEPT. SHARE $ 23,525 $ 40,293 $ 39,339 $ 44,997 $ 43,512 $ 47,618 $ 50,763 $ 51,810 $ 48,017 $ 50,794 DISTRIBUTION EXPENSES Supervision - 4,750 4,806 4,881 4,851 5,116 6,257 6,643 7,310 7,830 Salaries 3,41f.1 10,127 9,817 17,325 17,429 25,054 28,680 28,844 38,609 43,870 Vehicle and Equipment Expenses 3,437 976 538 1,718 2,034 3,189 5,087 4,413 5,350 7,521 Tapping Supplies - 2,903 3,323 2,933 5,459 3,776 4,114 4,467 1,989 2,400 Meter Maintenance Salaries 5,225 5,522 8,295 8,183 9,633 9,257 9,947 10,660 11,318 12,266 -~_._- .- 1---' Meter Maintenance Supplies 1,970 3,424 7,443 8,884 11,927 10,653 8,508 4,198 5,711 1,375 Maintenance - Distribution Mains 26,49s\t 2,643 2,607 1,808 5,016 6,026 4,034 3,849 10,063 5,672 Maintenance - Elevated Tanks - 714 1,512 857 1,112 1,214 1,042 22,567 9,283 259 Maintenance - Reservoirs - 14 - - - - - 100 104 455 Maintenance - Hydrants - 3,033 305 1,340 338 2,963 431 556 1,359 435 Miscellaneous Materials & Labor (Street) 4,800 2,915 4,446 3,155 1,429 2,516 1,255 261 1,268 2,090 WATER DEPT. SHARE $ 45,344 $ 37,020 $ 43,092 $ 51,083 $ 59,228 $ 69,764 $ 69,354 $ 86,556 $ 92,364 $ 84,172 CUSTOMERS' ACCOUNTING AND COLLECTION EXPENSES Office Salaries 34,163 39,849 42,617 38,574 42,617 42,185 42,690 44,772 45,160 47,053 Servicemen & Meter Readers Salaries 16,690 34,611 36,500 35,030 32,928 31,848 34,917 37,954 41,174 44,9f1 Servicemen & Meter Readers Supplies - 2,427 168 788 520 439 603 421 670 391 Collection Stations - 1,371 1,553 1,354 1,563 1,561 1,737 1,765 1,797 1,815 Maintenance. Office & Equipment - 1,791 1,377 1,948 1,915 1,930 3,354 2,610 2,327 2,324 Postage 7,200 9,027 14,657 7,060 7,810 7,573 10,708 10,982 10,426 12,097 " 17,310~ Miscellaneous Supplies and Expenses 8,770 7,842 7,720 8,418 6,934 6,497 4,353 6,880 6,202 Sub Total $ 75363 $ 97 846 $104716 $ 92475 $ 95 773 $ 92470 $100505 $102858 $108,435 $114,802 WATER DEPT. SHARE (EST 75%) $ 61,798 $ 80,234 $ 85,867 $ 69,356 $ 71,830 $ 69,353 $ 75,379 $ 77,144 $ 81,326 $ 86,102 SEWAGE DEPT. SHARE (EST 16%) $ 13,565 $ 17,612 $ 18,849 $ 14,796 $ 15,324 $ 14,795 $ 16,080 $ 16,457 $ 17,350 $ 18,368 SANITATION DEPT. SHARE (EST 9%) - ~ - C3 -\g, $ 8,323 $ 8,619 $ 8,322 $ 9,046 $ 9,257 $ 9,759 $ 10,332 ...,,- I I I I I I I I I I I I I I I -' I I I 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 EXPENDITURES (cant.) ADMINISTRATIVE AND GENERAL EXPENSES Supervision $ 11.480 $ 13,700 $ 9,738 $ 9,762 $ 9,786 $ 9,924 $ 10,398 $ 11,568 $ 12,396 $ 13,152 Salaries 3,796 3,962 4,145 5,218 5,121 3,968 4,503 4,841 5,136 5,208 Social Security 6,287 7,916 8,151 8,326 7,900 11,522 12,514 14,646 16,252 19,265 Employees' Retirement 7,652 9,247 7,965 8.457 7,599 9,136 10,678 15,981 17,595 18,549 Insurance. Building and Accident 4,700 5,695 11,027 13,926 14,604 14,967 19,642 17.466 18,013 23.427 Sales Tax 635 523 893 2,025 1.415 3,204 1,903 3,639 1,560 1,166 Property Taxes 10,0002 10,000 10,000 10,000 10,000 10,000 20,000 30,000 30,000 30,000 Services Performed. Other Departments - - - 12,825 13,140 15,312 15,600 15,000 15,000 15,519 Maintenance, Utilities, etc. - Building - - - - - - - 2,BOO 7.400 6,900 Miscellaneous Supplies and Expenses 4,33~ 13,153 12,400 13,692 14,793 11,309 30,960 14,500 19,308 14,066 Sub Total $ 4B,886 $ 64,196 $ 64,319 $ 84,231 $ 84,358 $ 89,344 $126,197 $130.441 $142,660 $147,251 WATER DEPT. SHARE (EST 59%) $ 29,332 $ 38,518 $ 38,591 $ 49,696 $ 49,771 $ 52,713 $ 74.456 $ 76,960 $ 84,169 $ 86,878 SEWAGE DEPT. SHARE (EST 39%) $ 19,554 $ 25,678 $ 25,72B $ 32,850 $ 32,900 $ 34,844 $ 49,217 $ 50,872 $ 55,637 $ 57,42B SANITATION DEPT. SHARE (EST 2%) - C.!! - ~ - (E $ 1,685 $ 1,687 $ 1,687 $ 2,524 $ 2,609 $ 2,853 $ 2,945 I SEWAGE TREATMENT AND COLLECTION EXPENSES Supervision - 15,890 16.456 16,659 16,339 12,172 30,028 33,771 37,029 39,B60 Operating Salaries 48.44!lJ 39,634 42,935 44,312 49,207 64.495 53,361 58,502 63,396 70,859 Utilities and Supplies 18,016 23,224 26,708 23,962 26,830 27,912 28,154 30,886 31,278 31,266 Maintenance 6,759 9,614 8,161 19,511 8.466 10,449 9.486 11,797 14,910 15,062 Miscellaneous Expenses 382 2,924 29 3,632 4,060 3,890 4,961 5,931 5,591 6,732 SEWAGE DEPT. SHARE $ 73,602 $ 91,286 $ 94,288 $108,074 $104,902 $118,917 $125,991 $140,888 $152,204 $163,779 80ND AND INTEREST EXPENSE Bond Principal Payments 103,200 103,200 103,200 103,200 138,300 136,000 87,000 120,000 120,000 120,000 Bond I nterest Payments 144,000 144,000 134,000 118,000 72,000 83,000 138,000 100,195 96,295 92,669 Bond Reserve Account 72,000 72,000 72,000 51,470 - - - - - - Other City Fund 57,5001: 38,O~ U 21,OO<k5I) - - - - - - - Sub Total $376,700 $357,200 $330,200 $272,670 $210,300 $219,000 $225,000 $220,195 $216,295 $212,669 WATER DEPT. SHARE (54.2%) $204,171 $193,602 $178,968 $147,787 $113,983 $118,698 $121,950 $119,346 $117,232 $115,267 SEWAGE DEPT. SHARE (45.8%) $172,529 $163,598 $151,232 $124,883 $ 96,317 $100,302 $103,050 $100,849 $ 99,063 $ 97.402 TOTAL OPERATING EXPENSES WATER DEPT. SHARE $515,169 $536,826 $559,844 $485,761 $480,351 $511,847 $564,624 $608,826 $658,920 $634.420 SEWAGE DEPT. SHARE $279,250 $298,174 $290,127 $280,603 $249,443 $268,858 $294,338 $309,849 $324,254 $336,977 SANITATION DEPT. SHARE - (!l - ~ - ~ $ 10,008 $ 10,306 $ 10,009 $ 11,570 $ 11,866 $ 12,612 $ 13,277 COMBINED TOTAL $794,419 $835,000 $849,971 $776,372 $740,100 $790,714 $870,532 $930,541 $995,786 $984,674 REVENUES REVENUE - WATER DEPT. SHARE Revenue from the Sale of Water 555,359 564,696 576,895 506,849 546,234 546,851 587,536 611,470 653,658 651,739 Tapping and Frontage Service 38,744 26,771 13,390 11,090 5,858 5,688 5,972 6,169 5,502 11,608 Miscellaneous Income 4,356 5,104 6,917 6,301 4,392 7,375 4,223 34,698 11,647 13,684 I nterest on Investments 44.438 26,071 - - - - - - - - Sub Total $642,897 $622,642 $591,202 $524,240 $556,484 $559,914 $597,731 $652,337 $670,807 $677,031 REVENUE - SEWAGE DEPT. SHARE Revenue from Sewer Service Charges $333,160 $337,134 $344,101 $321,640 $309,867 $338,731 $349.462 $351,640 $357,777 $372,517 REVENUE - SANITATION DEPT. SHARE Service Charge Paid to Water Dept. - - - $ 2,618 $ 2,730 $ 3,087 $ 2,943 $ 3,019 $ 3,062 '$ 3,124 GRAND TOTAL REVENUE $976,057 $960,374 $941,303 $848.498 $869,082 $901,731 $950,136 $1,006.996 $1,031,645 $1,052,673 PROFIT OR (LOSS) WATER DEPT. $127,728 $ 85,816 $ 37,358 $ 38,479 $ 76,133 $ 48,067 $ 33,107 $ 43,511 $ 11,887 $ 42,611 SEWAGE DEPT. $ 53,910 $ 39,560 $ 53,974 $ 41,037 $ 60.424 $ 69,873 $ 55,124 $ 41,791 $ 33,523 $ 35,540 SANITATION DEPT. - ~ _ (6 - ~ ($ 7,390) ($ 7,576) ($ 6,922) ($ 8,627) ($ 8,847) ($ 9,550) ($10,153) TOTAL $181,638 $125,374 $ 91,332 $ 72,126 $128,981 $111,017 $ 79,604 $ 76.455 $ 35,859 $ 67,999 ~ I I I I I I I I ./ I I I I I I I .;. I I NOTE: CD Labor not split between supervision and general salaries (3) Total maintenance; not split between mains, tanks, reservoirs or hydrants @ Franchise tax @Estimated general split between two categories; further breakdown not estimated @Depreciation and Emergency Account @Sanitation Dept.'s shares compensated by exchange of services I I I I I I I I I I I I I I I I I I I I SALINA, KANSAS TABULATION OF ESTIMATED WATER DEPARTMENT REVENUE REQUIREMENTS 1973 THROUGH 1982 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 GENERAL EST. POPULATION 38.000 38,350 38.7 50 39,100 39,500 39,850 40,200 40,600 40,950 41,300 EST. WATER METERED' 231.8 235.8 240.1 244.2 248.6 252.8 257.0 261.5 265.8 270.1 EST. METERED CONSUMPTION (cubic feel/capita/day) 16.7 16.8 17.0 17.1 17.2 17.4 17.5 17.6 17.8 17.9 (gallons/capita/day) 125 126 127 128 129 130 131 132 133 134 COSTS (cents/l 00 cubic feet) Operation, Maintenance and Taxes 23.49 24.05 24.55 25.06 25.52 25.99 26.44 26.85 27.26 27.66 Minor Capital I mprovements 1.73 1.74 1.75 1.76 1.77 1.78 1.79 1.80 1.81 1.81 Existing 80nd & Interest Expense 4.90 4.83 4.76 4.68 4.71 4.63 4.54 4.55 4.45 4.46 Proposed 80nd & Interest Expen.,Q) Without Grants 10.72 10.54 10.35 10.18 10.00 9.83 9.67 9.50 9.35 9.20 With Grants 6.15 6.05 5.94 5.84 5.74 5.64 5.55 5.45 5.36 5.28 Total Annual Revenue Reauirement (including coverage ratio reQuirement~ Without Grants 47.08 47.31 47.46 47.63 47.89 48.01 48.12 48.32 48.39 48.59 With Grants 40.68 41.02 41.28 41.56 41.92 42.14 42.35 42.81 42.81 43.10 EXPENDITURES OPERATION, MAINTENANCE & TAXES WATER SUPPLY EXPENSES $ 13,500 $ 14,000 $ 14,500 $ 15,000 $ 15,500 $ 16,000 $ 16,500 $ 17,000 $ 17 ,500 $ 18,000 SOFTENING & TREATMENT EXPENSES 220,000 225,000 230,000 235,000 240,000 245,000 250,000 255,000 260,000 265,000 PUMPING EXPENSES 51,000 52.000 53,000 54.000 55,000 56,000 57,000 58,000 59,000 60,000 DISTRI8UTION EXPENSES 88,000 91,000 94.000 97.000 100,000 103,000 106,000 109,000 112,000 115,000 CUSTOMER'S ACCOUNTING & COLLECTION EXPENSES (Water Dept. Share) 87,000 90,000 93,000 96,000 99,000 102,000 105,000 108,000 111,000 114,000 ADMINISTRATIVE & GENERAL EXPENSES (Water Dept. Share) 85.000 95,000 105,000 115,000 125,000 135,000 145,000 155,000 165,000 175,000 Sub Total $ 544,500 $ 567,000 $ 589,500 $ 612,000 $ 634,500 $ 657,000 $ 679,500 $ 702,000 $ 724,500 $ 747,000 MINOR CAPITAL IMPROVEMENTS MINOR CAPITAL IMPROVEMENTS $ 40,000 $ 41,000 $ 42,000 $ 43,000 $ 44,000 $ 45,000 $ 46,000 $ 47,000 $ 48,000 I $ 49,000 REVENUE REQUIREMENT WITHOUT GRANTS EXISTING 80ND & INTEREST EXPENSE (Water Dept. Share) $ 113,500 $ 114,000 $ 114,300 $ 114,400 $ 117,200 $ 117,000 $ 116,700 $ 119,000 $ 118,400 $ 120,400 PROPOSED 80ND & INTEREST EXPENSE (C. J.P. without grant.G:1 248,500 248,500 248,500 248,500 248,500 248,500 248,500 248,500 248,500 248,500 Sub Total $ 362,000 $ 362,500 $ 362,800 $ 362,900 $ 36!l700 $ 365,500 $ 365,200 $ 367,500 $ 366,900 $ 368,900 TOTAL 80ND 8< INTEREST EXPENSE (including coverage ratio reqUiremen~ $ 506,800 $ 507,500 $ 507,900 $ 508,100 $ 512,000 $ 511,700 $ 511,300 $ 514,500 $ 513,700 $ 516,500 TOTAL ANNUAL REVENUE REQUIREMEN~ $1,091,300 $1,115,500 $1,139,400 $1,163,100 $1,190,500 $1,213,700 $1,236,800 $1,263,500 $1,286,200 $1,312,500 REVENUE REQUI REMENT WITH GRANTS EXISTING 80ND & INTEREST EXPENSE (Water Dept. Share) $ 113,500 $ 114,000 $ 114,300 $ 114,400 $ 117,200 $ 117,000 $ 116,700 $ 119,000 $ 118,400 $ 120,400 PROPOSED 80ND & INTEREST EXPENSE (C.I.P with grant.G:1 142,600 142,600 142,600 142,600 142,600 142,600 142,600 142,600 142,600 142,600 Sub Total $ 256,100 $ 256,600 $ 256,900 $ 257,000 $ 259,800 $ 259,600 $ 259,300 $ 261,600 $ 261,000 $ 263,000 TOTAL 80ND & INTEREST EXPENSE (including coverage ratio requiremen~ $ 358,500 $ 359,200 $ 359,600 $ 359,800 $ 363,700 $ 363,400 $ 363,000 $ 370,400 $ 365,400 $ 368,200 TOTAL ANNUAL REVENUE REQUIREMEN,@ $ 943,000 $ 967,200 $ 991,100 $1,014,800 $1,042,200 $1,065,400 $1,088,500 $1,119,400 $1,137,900 $1,164,200 . million cubic feet/year CD Annual Sums based on 20-year retirement at 5% percent average interest @ Bond Coverage Ratio Requirement based on a ratio of 1: 1.40 @ Includes "Operation, Maintenance and Taxes," "Minor Capital Improvement" and "Total Bond and Interest Expense" I72'3'l I I I "Softening and Treatment Expenses" consist of the labor, supplies, power and fuel associated with the operation of the water treat- ment plant. I I I I I "Pumping Expenses" consist of the labor, supplies, power and fuel associated with the operation of the water distribution pumping stations. "Distribution Expenses" consist of the labor and supplies associated with the operation of the distribution mains and storage tanks. I I I I I I "Customers' Accounting and Collection Expenses" consist of the labor, supplies and postage associated with the meter reading and billing operations. The City operates the Water and Sewage Departments as a single administration department. The Water Department's share of these expenses is estimated to be 75 percent of the total costs. The Department also bills for the Sanitation Department. "Administrative and General Expenses" consist of the labor, supplies, taxes, insurance, employee benefits and general overhead associated with the entire Water and Sewage Depart- ments. The Water Department's share of these expenses is estimated to be 59 percent of the total costs. I I I I I "Sewage Treatment and Collection Expenses" are tabulated because the Water and Sewage Departments are combined; however, none of these costs are associated with the Water Department. "Bond and Interest Expense" is the existing yearly debt retire- ment. The Water Department's share is estimated to be 54.2 percent of the total cost. 24 I I I I I I I I I I I I I I I I I I I "Revenues" consist of those generated by the Water Department and Sewage Department as well as that paid to the Water Depart- ment by the Sanitation Department for billing services. "Minor Capital Improvements" is a future allocated expense for capital improvements not covered by the proposed Capital Improve- ments Program. "Revenue Requirement Without Grants" is the expected future revenue requirement of the Water Department including the expense of the Proposed Capital Improvements Program, but not including any state or federal grants to assist in the Program. "Revenue Requirement With Grants" is the expected future revenue requirement of the Water Department including the expense of the Proposed Capital Improvements Program with assistance from state and federal grants. The Water Department's operating expenditures have increased from 1962 to 1971, approximately 2-1/4% per year. The projected operating expenditures from 1973 to 1982 are expected to increase 2-3/4% per year. B. Sunnnary The revenue requirements of a publicly owned water utility are not generally based on a rate of return, but on the cash or budget requirements of the system as determined by local conditions. The City of Salina's Water Depart- ment is typical in this respect. A cash basis reflects municipal financing of capital improvements through serial bonds whose retirement must be pro- vided for on an annual basis while they are outstanding. Also, the City's water utility is not operated for a profit, but merely attempts to cover total operation costs and to provide for investment in plant facilities. Table 4 presents the "Annual Revenue Requirement" for the City of Salina's 25 I I I Water Department. This annual sum represents the average requirement for the next ten year period. This amount represents a minimum level of revenue on which the water utility may continue to operate and provide adequate service. I I I TABLE 4 AVERAGE ANNUAL REVENUE REQUIREMENT I I Without Grants With Grants Operation, Maintenance and Taxes $ Existing Debt Service* Minor Capital Improvements Proposed Debt Service (Capital Improvements Program) * 634,500 164,100 44,000 $ 634,500 164,100 44,000 I I 347,900 199,600 Total Average Annual Revenue Requirement $1,190,500 $1,042,200 * Includes Bond Coverage Ratio Requirement of 1:1.40. I Allocation of Cost of Service To Cost Functions I I I A. General I I I I I The total cost of providing service by a water utility is equal to the annual revenue requirements of the Water Department. In providing service, the Water Department is required to supply water in amounts and at such rates as desired by the customer. The Water Department incurs costs in relationship to the operating requirements and the necessary investment in system facilities required to meet customer needs. Since these needs or requirements for total volume of supply and peak rates of use vary among customers, so does the cost to the utility of providing service to respective customers or classes of customers. 26 J I I I I I I I I I I I I I I I I I I I To assure equity in charges to different classes of customers, the actual cost of providing service to each class must be recovered from that class. Cost-allocation procedures must recognize the specific service require- ments of the class of customers for total volume of water, peak rates of use, and billing related functions. For example, a customer on a poor load factor (i.e., a high peak rate of use as compared with their average rate of use) would require larger-capacity pumps, pipes and certain other system facilities than a customer who has a comparable total consumption but uses water continuously at essentially a uniform rate. The revenue requirements discussed in the previous section can be stated in terms of capital costs (Existing Debt Service, Annual Minor Capital Improvements and Proposed Debt Service) and operating expenses (Operation, Maintenance and Taxes). The method used in preparing the proposed water rate structure is referred to generally as the "Base - Extra Capacity" method. All costs of service are separated into three components; base cost, extra capacity cost, and customer cost. Base costs are costs that tend to vary with the quantity of water used plus those operating and capital costs associated with service to customers under average load conditions, without elements necessary to meet water-use variations and resulting peaks in demand. These elements necessary to meet water-use variations are extra-capacity costs and include capital and operating charges for additional plant and system capacity beyond that required for average rate of use. These extra-capacity costs are subdivided into costs necessary to meet maximum day extra demand and maximum hour extra demand. Customer costs are costs associated with serving customers irrespective of the amount of water used or maximum demands. These customer costs are subdivided into costs associated with meters and those associated with billing. 27 I I I I I I I I I I I I I I I I I I I B. Allocation of Operation, Maintenance, and Taxes Expense Table 5 presents the distribution of Operation, Maintenance and Taxes. Commodity related expenses, including power and chemical costs are assigned directly to base cost, since these costs tend to vary with water usage. Other expenses associated with facilities are allocated on the design-capacity requirement of each facility. Such expenses, if designed to meet maximum- day requirements are allocated on the basis of the approximate average day to peak day ratio of 1:2.3. Thus, 43 percent of these expenses are allocated to base cost and 57 percent to maximum-day extra capacity cost. Expenses related to facilities designed to meet maximum hour requirements are allocated on the basis of the approximate average day to peak hour ratio of 1:3.7. This allocates 27 percent of these expenses to bbase cost and 73 percent to maximum hour extra capacity costs. Allocation of Administrative and General Expenses is made on the basis of the allocation of the other expenses. After the Base Year Totals are derived, the allocation of the Proposed Annual Revenue Requirement (Operation, Maintenance, and Taxes) is made in the same proportion. 28 I I I I I I I I I I I I I I I I I I I TABLE 5 ALLOCATION OF OPERATION, MAINTENANCE AND TAXES EXPENSE Operation & EXTRA CAPACITY COSTS CUSTOMER COSTS Maintenance BASE Maximum Maximum DESCRIPTION Expenses COST Day Hour Meter Billing WATER SUPPLY EXPENSES Utilities $ 8,118 $ 8,118 Maintenance 4,698 2,020 $ 2,678 Sub Total $ 12,816 $ 10,138 $ 2,678 SOFTENING & TREATMENT EXPENSES Salaries & Wages $ 58,930 $ 25,340 $33,590 Utilities, Supplies & Chemicals 152,896 152,896 Maintenance 11,171 4,804 6,367 Sub Total $222,997 $183,040 $39,957 PUMPI NG EXPENSES Salaries and Wages $ 32,085 $ 8,663 $23,422 Utilities & Supplies 15,462 15,462 Maintenance 470 127 343 Sub Total $ 48,017 $ 24,252 $23,765 DISTRIBUTION EXPENSES General Salaries $ 45,919 $ 12,398 $33,521 Meter Maintenance Salaries & Supplies 17,029 $17,029 Maintenance .. Mains 10,063 2,717 7,346 Maintenance .- Storage 9,387 2,534 6,853 Maintenance u Hydrants 1,359 693 136 245 197 $ 88 Miscellaneous Expenses 8,607 2,324 6,283 Sub Total $ 92,364 $ 20,666 $ 136 $54,248 $17,226 $ 88 CUSTOMER ACCOUNTING & COLLECTION EXPENSES Office Salaries $ 26,847 $26,847 Service Men & Meter Readers Salaries & Supplies 41,845 $41 ,845 Other Expenses 12,634 8,505 $ 3,821 Sub Total $ 81,326 $50,350 $30,668 ADMINISTRATIVE & GENERAL EXPENSES Salaries and Wages $ 10,344 $ 5,275 $ 1,034 $ 1,862 $ 1 ,499 $ 674 Social Security & Retirement 19,970 10,185 1,997 3,595 2,893 1,300 Property Tax 17,700 5,310 3,540 7,080 1,222 548 Building Expenses 26,358 13,443 2,636 4,744 3,819 1,716 Services from Other Departments 8,850 4,514 885 1,593 1,282 576 Sub Total $ 83,222 $ 38,727 $10,092 $18,874 $10,715 $ 4,814 BASE YEAR TOTALS $540,742 $276,823 $52,863 $96,887 $78,291 $35,570 Percentage of Total 100% 51.2% 9.8% 17.9% 14.5% 6.6% AVERAGE ANNUAL REVENUE REQUIREMENTS ALLOCATION With and Without Grants $634,500 $324,800 $62,200 $113;600 $92,000 $41 ,900 (72-37) I I C. Allocation of Capital Costs I I Table 6 presents the distribution of capital costs. The distribution of facilities investment is predicated on the same percentages developed in the previous section. Fire protection is distributed on the basis of the resulting allocation of the other facilities. After the Water System Totals are derived, the allocation of the Proposed Annual Revenue Requirement (Existing Debt Service, Annual Minor Capital Improvements, and Proposed Debt Service) is made in the same proportion. I I I Allocation of Costs to Customer Classes I A. General I Prior sections have allocated both capital and operating components of cost of service to cost functions (i.e., base costs, extra capacity costs, and customer costs). This section will distribute the cost functions to each customer class in the proportion the respective class responsibility for costs bears to the total cost responsibility of all customer classes served by the system. I I I B. Customer Classes I I Customer classes are decided on the basis of hourly or daily demand characteristics. Typically, there are three principal customer classes; residential, commercial, and industrial. However, the distinction between commercial and industrial users is not clear and therefore, the customer classes selected for Salina are residential, small commercial and industrial, and large commercial and industrial. (The reference to small and large refers to quantity of water used and not physical or corporate size.) I I I I 29 I I I TABLE 6 ALLOCATION OF CAPITAL COSTS Estimated EXTRA CAPACITY COSTS CUSTOMER COSTS Capital BASE Maximum Maximum Fire DESCRIPTION Investment COST Day Hour Meter Billing Protection SUPPLY Real Estate $ 5,000 $ 2,200 $ 2,800 Wells & Pumps 277,000 119,100 157,900 Collection Mains 48,000 20,600 27,400 Sub Total $ 330,000 $ 141,900 $ 188,100 TREATMENT Rea I Estate $ 5,000 $ 2,200 $ 2,800 Plant & Improvements 1,878,000 807,500 1,070,500 Sub Total $1,883,000 $ 809,700 $1,073,300 STORAGE & PUMPING Real Estate -- Pump $ 11,000 $ 3,000 $ 8,000 Real Estate -- Storage 21,000 5,700 15,300 Structures & Equipment -- Pump 130,000 35,100 94,900 Structures & Equipment -- Storage 667,000 180,100 486,900 Sub Total $ 829,000 $ 223,900 $ 605,100 DISTRIBUTION MAINS & EQUIPMENT Mains $2,266,000 $ 611,800 $1,654,200 Manholes 55,000 14,900 40,100 Valves 224,000 60,500 163,500 Hydrants 166,000 $166,000 Miscellaneous Equipment 124,000 33,500 90,500 Meters 355,000 $355,000 Sub Total $3,190,000 $ 720,700 $1,948,300 $355,000 $166,000 GENERAL Office Furniture, Equipment, Etc. $ 105,000 $105,000 CAPITAL IMPROVEMENTS PROGRAM WTP Improvements $1,000,000 $ 430,000 $ 570,000 Mains 1,684,000 454,700 $1,229,300 Storage 236,000 63,700 172,300 Sub Total $2,920,000 $ 948,400 $ 570,000 $1,401,600 TOTALS $9,257,000 $2,844,600 $1,831,400 $3,955,000 $355,000 $105,000 $166,000 Prorated F ire Protection 51,900 33,400 72,300 6,500 1,900 ($166,000) WATER SYSTEM TOTALS $9,257,000 $2,896,500 $1,864,800 $4,027,300 $361,500 $106,900 Percentage, of T ota I 100% 31.3% 20.1% 43.5% 3.9% 1.2% 0% AVERAGE ANNUAL REVENUE REQUIREMENT ALLOCATION Without Grants $ 556,000 $ 174,000 $ 111,800 $ 241,800 $ 21,700 $ 6,700 With Grants 407,700 127,600 81,900 177 ,400 15,900 4,900 (72-37) I I I I I I I I I I I I I I I I I I I I For each class of customers, the annual water use and maximum demand characteristics, as well as the number of bills rendered and meters used and serviced a year, are factors that provide a measure of customer class cost responsibility. Table 8 presents the customer water use charac- teristics, and Table 7 presents equivalent meter and billing factors. I I I TABLE 7 EQUIVALENT METER AND BILLING FACTORS I I Number Equivalent Of Bills Meters* Per Month Customer Class Percent Number Percent Number Residential 81.1 13,058 87.1 11,730 Conunercia1 & Industrial Small 17.5 2,820 12.8 1,728 Large 1.4 222 0.1 17 Totals 100 16,100 100 13,475 I I I * Equivalent meters are determined by relating costs of the various sizes of meters to the cost of a 5/8-inch meter. I I I I I I I I 30 I I I I I I I I I I I I I I I I I I I TABLE 8 CUSTOMER WATER USE CHARACTERISTICS Customer Class Average Annual Usage Average Daily Usage Approximate Demand Factor Total Demand Extra Demand Percentage Of Extra Demand (mcfy) (mcfd) (percent) (mcfd) (mcfd) (percent) MAXIMUM DAY DEMANDS Residential 152.5 .418 325 1.359 .941 80 Commerc ial & Industrial Small 49.7 .136 225 .306 .170 15 Large 26.6 .073 180 .131 .058 5 Totals 228.8 .627 1.796 1.169(1) 100 MAXIMUM HOUR DEl-1ANDS Residential 152.5 .418 500 2.090 1.672 80 Commercial & Industrial Small 49.7 .136 350 .476 .340 16 Large 26.6 .073 225 .164 .091 4 Totals 228.8 .627 2.730 2.103(2) 100 (1)1.169 mcfd equals 427 mcfy (2)2.103 mcfd equals 768 mcfy mcfy = million cubic feet per year mcfd = million cubic feet per day 31 I I I I I I I I I I I I I I I I I I I C. Unit Costs of Service. Table 9 presents a summary of the total costs of service by cost functions and the resulting unit costs of service. The base cost unit cost of service is the minimum unit cost of service, after recovery of customer costs, applicable only if a perfect load factor use could be achieved (perfect load factor is use of water at a continuous, equal rate year around). The unit base cost provides a measure of the lowest potential charge in a schedule of rates for firm service, an important guide in preventing possible establishment of charges that could result in the sale of water by the utility at below cost. This unit base cost per 100 cubic feet is 21.80 cents for service without grants and 19.78 cents for service with grants. 32 ------------------- TABLE 9 UNIT COSTS OF SERVICE WITHOUT GRANTS Cost Operating Capital Function Costs Costs Total Units Unit Cost of Service Base Costs $324,800 $174,000 $ 498,800 228.8 mcfy 21.80 c/ccf Extra Capacity Costs Maximum Day 62,200 111,800 174,000 427 mcfy 4.07 c/ccf Maximum Hour 113,600 241,800 355,400 768 mcfy 4.63 c/ccf Customer Costs Equivalent Meters 92,000 21,700 113,700 16,100 Eq. meters 58.85 c/Eq. meter/mo. w Billing -41,900 6,700 48,600 13,475 bills 30.06 c/bi11/mo. w Totals $634,500 $556,000 $1,190,500 WITH GRANTS Base Costs $324,800 $127,600 $ 452,400 228.8 mcfy 19.78 C/ccf Extra Capacity Costs Maximum Day 62,200 81,900 144,100 427 mcfy 3.37 clccf Maximum Hour 113,600 177 ,400 291,000 768 mcfy 3.79 c/ccf Customer Costs Equivalent Meters 92,000 15,900 107,900 16,100 Eq. meters 55.85 c/Eq. meter/mo. Billing -41,900 4,900 46,800 13,475 bills 28.94 c/bi11/mo. Totals $634,500 $407,700 $1,042,200 mcfy = million cubic feet per year ccf = 100 cubic feet I I I I I I I I I I I I I I I I I I I D. Allocation Of Costs To Customer Classes Table 10 presents the allocation of the total costs of service incurred by the Water Department to the customer classes in proportion to the cost responsibility of each class. 34 ------------------- TABLE 10 ALLOCATION OF COSTS TO CUSTOMER CLASSES WITHOUT GRANTS CUSTOMER CLASS BASE EXTRA CAPACITY CUSTOM E R MAXIMUM DAY MAXIMUM HOUR METER BILLING TOTAL Percent Dollars Percent Dollars Percent Dollars Percent Dollars Percent Dollars DOLLARS RESIDENTIAL 66.7 $332,700 80 $139,200 80 $284,300 81.1 $ 92,200 87.1 $42,300 $ 890,700 COMMERCIAL & INDUSTRIAL Small 21.7 108,200 15 26,100 16 56,900 17.5 19,900 12.8 6,200 217,300 Large 11.6 57,900 5 8,700 4 14,200 1.4 1,600 0.1 100 82,500 Totals 100 $498,800 100 $174,000 100 $355,400 100 $113,700 100 $48,600 $1,190,500 WITH GRANTS RESIDENTIAL 66.7 $301,700 80 $115,300 80 $232,800 81.1 $ 87,500 87.1 $40,700 $ 778,000 COMMERCIAL & INDUSTRIAL Small 21.7 98,200 15 21,600 16 46,600 17.5 18,900 12.8 6,000 191,300 Large 11.6 52,500 5 7,200 4 11,600 1.4 1,500 0.1 100 72,900 Totals 100 $452,400 100 $144,100 100 $291,000 100 $107,900 100 $46,800 $1,042,200 (72-37) I I I I I I I I I I I I I I I I I I I Development of Rate Schedules A. General Water rate schedules must be so designed as to recover the costs of serving different classes of customers, maintaining reasonable equity between the customer classes. Proper design concepts do not take quantity discount into consideration or advocate lower rates simply for water sold in larger amounts. Rate design does recognize the costs of supplying the amount of commodity used, the rate of use or demand for use, and the costs involved in main- taining the customer's account and meter. It is reasonable and proper to recognize that different classes of customers have characteristic and measurable demand requirements on system facilities. It is also practical to give recognition to customer class diversity in measuring costs to serve different classes of customers. Much more is known today concerning customer use and demand characteristics then was true 20 years ago. Through analysis of use and demand data, it has been found that the smaller users as a group, characteristically, have a high demand factor (the ratio of maximum to average rate of use), which may require capacities of 500 percent of average use. Conversely, it has been found that large users as a group have a much lower demand factor, with capacity require- ments of perhaps only 200 percent of average use. B. Establishment of Usage Blocks The usage blocks that control the charges for the rate schedule have been designed on the basis of customer-class water-usage information derived from billing records of the City. Plate 11 shows curves that express the various levels of monthly use per customer in a class as a percentage of the total 35 ------------------- PLATE II MONTHLY USE PER CUSTOMER VS. TOTAL USAGE BY CLASS (Base Year 1970) (") c: r- ~ ~ -t < I'T'I ""tI I'T'I :::tI (") I'T'I :z: -t o "'T1 -t o -t ~ r- c: en ]:I. C') I'T'I "'T1 o :::tI ]:I. (") r- ]:I. C/J en 00 ~ ~ SMALL COMMERCIAL - - - '- V ...- / & INDUSTRIAL I CLASS ~ RESIDENTIAL / jr / CLASS --; 80 / / LARGE COMMERCIAL / & I NOUSTR I AL - J CLASS 7 7v / / / 60 / 7 If / 50 V / / / / j 110 / / / / I 30 / / / / / 20 I / ~I / ~ / 10 ...- /1..... ,/ - ~ .-.'" ~ ~ ......., .,/ - ~ o 100 1,000 100,000 1,000,000 Salina, Kansas (72-37) 10,000 AVERAGE MONTHLY WATER USE PER CUSTOMER ------------------- (") c:: r ~90 -l < I'T1 -0 80 I'T1 ::00 (") I'T1 :z -l 70 o "'TI :z ~ 60 OJ I'T1 ::00 o 50 "'TI (") c:: en d IlO J:: I'T1 ::00 en "'TI o ::00 %> 20 J:: I'T1 -l I'T1 ::00 en N I'T1 PLATE 12 MONTHLY USE PER CUSTOMER VS. NUMBER OF CUSTOMERS BY METER SIZE (Base Year 1970) 100 "". -~ ~ I- ~ - - / ...... I--"" I,...- ....~ .......... ...... "",. ..,. ~ .....~ ./ y. V V V V / / / 1/ / I / V ~I ~/ / # ~I ~ -!/ / I / / / I / II ~/ / I / / /j 1/ V J / / / / // II / V / / I ./ / / / V/ V / l) ) / ~ / / ~ V .r / /' / ~ ./ ,/ i.-" ..,. ~ /" ./ ...... , ...... .-0""" - ~ 30 10 0100 1,000 100,000 1,000,000 10,000 AVERAGE MONTHLY WATER USE PER CUSTOMER Salina, Kansas (72-37) I I I I I I I I I I I I I I I I I I I water use by that class. The cumulative percentage of total water use by the class is shown on the vertical scale and monthly water use per customer is shown on the horizontal scale. The first usage block in the proposed rate schedules allows 2,000 cubic feet per month which means that, of the water used by residential customers, 84 percent is used by those customers using a total of less than 2,000 cubic feet per month. Similarly, the curves in Plate 11 indicate that only 14 percent of the small commercial and industrial class and essentially no large commercial and industrial use occurs in the 2,000 cubic feet or less monthly usage block. The second usage block in the proposed rate schedules allows 30,000 total cubic feet per month. This includes 87 percent of the water used by the small commercial and industrial class, the remaining usage in the residential class and 2 percent of the usage in the large commercial and industrial class. The final usage block in the proposed rate schedules accounts for all monthly usage over 30,000 cubic feet per month which primarily applies to the large commercial and industrial class. c. Establishment of Minimum Usage Blocks Plate 12 shows curves that express the various levels of monthly use per customer having a certain size meter as a percentage of the total number of customers for that meter size. The minimum usage blocks for meter sizes 3/4-inch through 2-inch were established such that approximately 25 percent of the customers having a certain size meter would use less than the monthly minimum allowable quantity and that the remaining 75 percent would use more than this minimum quantity each month. The larger size meter minimum usage blocks were established based on the experience and judgment of the consult- ing engineer. 36 I I I I I I I I I I I I I I I I I I I Plate 13 shows curves that express the various levels of monthly use per customer in a class as a percentage of the total number of customers in that class and is useful in recognizing the distribution of customers. 37 ------------------- PLATE 13 MONTHLY USE PER CUSTOMER VS. NUMBER OF CUSTOMERS BY CLASS (Base Year 1970) 100 ./ I---- l-- ..... RESIDEN"7 ~ :/ CLASS ./ .....100- / / V ....... / L .......... / / 7 SMALL COM- / / MERCIAL & / INDUSTRIAL J CLASS I / V V V- I 1 ~ LARGE COM- /" I- MERCI AL & / INDUSTRIAL / (,IA~~ / 1/ V / J V 1/ / / / V / / V C"") c: 90 r 3: > -i ~ 80 ""'C IT1 ;;>;;I ~ 70 :z. -i o "'T160 :z: c: 3: OJ ~50 o "'T1 g40 en -i o 3:: ~30 en "'T1 o ;;>;;I 20 > C"") r ~ 10 en 0100 1,000 10,000 100,000 1,000,000 AVERAGE MONTHLY WATER USE PER CUSTOMER Salina, Kansas (72-37) I I D. Design of Usage Block ~harges I I I I I I I I I I I I I I I I I As has been noted in Plate 11, each of the three usage blocks in the proposed rate schedule applies as practically as possible to one of the customer classes. Because of the high-capacity factors associated with water use in the lower usage block, charges in these blocks for the two proposed rate schedules must recover extra capacity costs in excess of the lower capacity requirements representative of users in subsequent usage blocks. E. Design of Minimum Usage Block Charges The minimum monthly charges for the various meter sizes were established based on the billing cost of each customer; the base and extra capacity costs associated with each meter size's minimum allowable usage; and the meter's maintenance and depreciation costs. F. Present and Proposed Rates for Water Service The present rate schedule for the City of Salina is shown in Appendix A. Two proposed rate schedules were developed to generate levels of revenue for the two revenue requirement conditions. The rate schedule shown in Table 2 should provide sufficient revenues to meet the Water Department's Revenue Requirement if the proposed Capital Improvements Program is imple- mented without aid from federal grants. The rate schedule shown in Table 2A should provide sufficient revenues to meet the Water Department's Revenue Requirement if the proposed Capital Improvements Program is implemented and aided through federal grants. The proposed rate schedules must generate from each class of customers revenue sufficient to meet its cost responsibility. Table 14 shows a comparison of the present rate schedule's projected revenues, costs of service, and projected revenues under the proposed rate schedules. 38 ------------------- TABLE 14 COST OF SERVICE VS. PROJECTED REVENUES Without Grants With Grants Pro j ec ted Revenue Revenue Percent Revenue Percent Under Cost Under Increase Under Increase Prese~b Of propotI~ Over Cost Of propo~I~ Over Customer Class Rates Service Rates Present Service Rates Present Residential $524,300 $ 890,700 $ 900,700(2) 72% $ 778,000 $ 789,100(2) 51% Commercial & Industrial w \0 Small 141,000 217,300 219,200. 55% 191,300 198,100 41% Large 43,100 82,500 88 600(2) 106% 72,900 79,400(2) 84% , Totals $708,400 $1,190,500 $1,208,500 71% $1,042,200 $1,066,600 51% (l)Estimate based on 1970 usage and projected to the required usage level. (2)Slight excess due to out-of-city surcharge. I I I I I I I I I I I I I I I I I I I City Codes; Policies, Rules and Regulations Chapter 35, "Water and Sewers," of the City of Salina Code establishes policies, rules and regulations governing the water and sewer utilities of the City. The sections of this chapter concerning water rate schedules have been previously discussed. Additional sections of Chapter 35 will be discussed as follows: Sec. 35-30 Taps and Charges. This section provides charges for taps made by the Water Department to provide service to a customer. The present charge of $1.50 per front foot was established several years ago and no longer covers the costs incurred by the Water Department for this service. Similarly charges for 3/4-inch and 1-inch corporation cocks do not cover actual costs. It is recommended that these charges be adjusted to an equitable level determine~ by recent Water Department cost records. Sec. 25-59 Hydrant Rental. This section provides charges for fire hydrants located outside the city limits. It is recommended that these charges be adjusted as determined by Water Department cost records. It is also recommended that consideration be given to establishing charges for fire hydrants located inside the city limits. These charges should be paid to the Water Department from the City General Fund. The fire hydrants protect property and the recovery of costs incurred should be based on property tax. The charges should be established based on Water Department cost records. Sec. 35-64(2) Billing and Collection; Disconnecting Service for Non Payment. This section provides for a service charge when a customer takes service for less than 12 consecutive months for the purpose of irrigating yards and lawns. The privilege created 40 I I I I I I I I I I I I I I I I I I I by this section permits these high demand customers to avoid minimum payments during winter months. This practice will not allow for the equitable recovery of costs generated by these customers since the water rate schedules are designed to recover costs over a full year's service. It is recommended that this policy be abolished. Further, in order to avoid possible abuses of discontinuance and restoration of service, it is recommended that a charge for restoring service at a location less than 12 months subsequent to discontinuance of service by the same customer should be based on the accumulated monthly minimum bills that would have been charged had service been continued. This policy should eliminate the situation where a customer disconnects service to avoid paying minimum bills during the months service is not utilized. In addition, general charges for disconnection and restoration should be established based on Water Department cost records. 41 I I I I I I I I I I I I I I I I I I I RECOMMENDATIONS Adoption of Water Rate Schedule It is recommended that the total annual costs incurred by the Water Department be financed through the collection of revenue from the sale of water. And further, that the appropriate water rate schedule developed in this study be adopted with the knowledge that it represents an equitable recovery of costs from the various classes of customers who cause the costs to be incurred. Establishment and }fuintenance of a Minor Capital Improvements Fund It is recommended that a fund be established from yearly revenues generated from the sale of water to provide monies for minor capital improvements. It is necessary that monies be paid into this fund each year and that the monies be used for required minor capital improvements as the need arises. The lack of such a fund in the past has hampered the Water Department's effort to upgrade localized portions of the water distribution system. Charges for Billing Services for the Sanitation Department The combined Water and Sewage Department provides billing service for the Sanitation Department. It is recommended that this policy be continued in order to avoid duplication of municipal services. However, the monies paid the combined Water and Sewage Department for this service have been inadequate to meet 'costs and it is therefore recommended that this charge be increased to an equitable level. Out-of-City Water Customers Presently out-of-City water customers are required to pay a surcharge for service. Several factors in favor and against this policy exist and it is beyond the scope of this Report to make a recommendation regarding this policy. 42 I I I I I I I I I I I I I I I I I I I However, regardless of the specific policy, an inequity exists due to a special agreement between the City and one large out-of-City user which allows this user to purchase water at below normal rates. It is therefore recommended that regardless of the specific policy adopted by the City concerning out-of-City rates, that this policy be applied equally to all concerned. Distribution System Operational Equipment It is recommended that several pieces of equipment be purchased and installed that will measure and record important statistics throughout the water distribution system. This information is needed for better daily manage- ment of the system and as aids in future planning. The specific recom- mendations are as follows: . 1. Purchase and installation of recording devices for all tank level telemetered indicators presently located at the Water Treatment Plant. 2. Purchase and installation of master flow meters and recorders at the present high service pumping station. 3. Purchase and installation of pressure gages with either local or remote recorders to be placed at strategic locations through- out the water system. A minimum of four is required. Policies Manual It is recommended that a policies manual be created for use by the Water Department. This manual should reflect daily operational and procedural methods of the Water Department not covered by City Ordinance. This manual should be assembled under the direction of the Director of Utilities with support from other City departments as required to establish uniform municipal policies. 39 I I I I I I I I APPENDIX A PRESENT WATER RATES SCHEDULE(l} SALINA, KANSAS Rates Inside City First 2,000 cubic feet @ 25~ per 100 cubic feet Next 3,000 cubic feet @ 22~ per 100 cubic feet Next 5,000 cubic feet @ 19~ per 100 cubic feet AllOver 10,000 cubic feet @ l5~ per 100 cubic feet Monthly Minimum Charges Size of Meter Minimum Charge Cubic Feet Allowed I 5/8" 3/4" I" 1-1/2" 2" 3" 4" 6" 8" $ 1.75 2.45 4.20 7.70 11.20 16.20 27.20 46.50 78.08 500 700 1,200 2,200 3,200 5,000 9,000 17,000 32,000 I I I I I Multiple consumers served by a master meter are charged 25~ per 100 cubic feet for all water consumed in excess of the minimum. Rates Outside City Minimum charge is two (2) times minimum charge for water consumed inside city. I I Water consumed in excess of minimum is the regular rate plus 25% thereof. Multiple consumers served by a master meter are charged at 3l.25~ per 100 cubic feet for all water consumed in excess of the minimum. I I I (l)In effect since June 1, 1959. 40 I I I f~~ APPENDIX B WATER DISTRIBUTION SYSTEM TEST MODEL I 50_ RESIDUAL PRESSURE (psil I I I I I I I I I I I I I I I Note: Actual Customer Pressure will 3 to 15 psi less than shown. SALINA. , ENGINEEfllN WILS tCOMP' Y "~i::N(HN'EER~ ~ t ARCHITECTS ~ '~'~~1 l'ownVfr.vsmr'" '''' --_.---.HiGH-rEv~~~.n';mM--.- ;t r5f>~ ' --.--- ~_._._.- ,r _~',",,,,,,,,,ud~"~ I I I I I I I I I I I I I I I I I I I APPENDIX C WATER DISTRIBUTION SYSTEM PEAK FLOW MODEL EXISTING CONDITIONS r'\ r3!>~ 50._ RESIDUAL PRESSURE (psil Note: Actual Customer Pressure will 3 to 15 psi less than shown. !1{! '-& :"~i:':-' ;; SALINA. ENGlNEERIN WJLS It,COMP' fu~~-~<<-'""'l ';<;L t ......_._.~.-.~ ! 10.' I t .. . . I I, i , 1._'_'1 i __._._._...._._~.~~=::~=-].=~~."--._._._i_._._._._._._._. _._.i L. HOGH UV" SOUTH SYSTEM l t~) ~7 ': 50. 80. _.~~..;:~~.y.!!~~. HIGH LEVEL SOUTH SVS I I I I I I I I I I I I I I I I I I I APPENDIX D WATER DISTRIBUTION SYSTEM PEAK FLOW MODEL 5~EAR IMPROVEMENTS ~~"'\ r4~" , .J f~~ I ' r/"J~ 50_ RESIDUAL PRESSURE (psi) Note: Actual Customer Pressure will 3 to 15 psi less than shown. !;,,~ SALINA, ENGINEERIN WJLS' ~rOMP t,~~*~oo"'"" j , , , , ; I HIGH LEVEL GYP~HILL SYf'. .-.-.-. -.- -.-, -- HIGH LEVEL so H SYSTE ' m<b-; "t I _.~~~~~.Y.!I~M HIGH LEVEl SOUTH SYST }&;~~ 4;,,: 0 %" ~~ 1 d6 f 68, c: ,,:;f' I I I I I I I I I I I I I I I I I I I APPENDIX E WATER DISTRIBUTION SYSTEM PEAK FLOW MODEL LONG RANGE IMPROVEMENTS 50_ RESIDUAL PRESSURE (psi! Note: Actual Customer Pressure will 3 to 15 psi less than shown. ~~-~, =-~"~~q<:-, I J 1 ! I I:'" -_.__.-+-.HiGH~~W~;~mM--.-. , _._._._._._;_._._._._._.~......;_. . ,(:07/t) J 55 ~ 65 70 110 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE BASE YEAR 1970 Average Percent Increase Monthly Number Monthly Water Bill of Monthly Bill Usage of Present Proposed Proposed Proposed Proposed (C.F. ) Customers Rate W/O Grants With Grants W/O Grants With Grants Residential - 5/8" Meters 410 1,564 $ 1. 75 $ 2.71 $ 2.43 55 39 745 3,843 2.36 4.25 3.74 80 58 1,200 2,258 3.50 6.34 5.51 81 57 1,720 872 4.80 8.73 7.54 82 57 2,350 412 6.27 11.03 9.58 76 53 3,380 72 8.54 14.02 12.36 64 45 4,390 20 10.76 16.95 15.08 58 40 6 , 130 12 14.25 22.00 19.78 54 39 9,290 1 20.25 31.16 28.31 54 40 Irregular 2,150 To tal 11 ,204 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE BASE YEAR 1970 Average Percent Increase Monthly Number Monthly Water Bill of Monthly Bill Usage of Present Proposed Proposed Proposed Proposed (C. F. ) Customers Rate W/O Grants With Grants W/O Grants With Grants Residential - 3/411 Meters 800 66 $ 2.70 $ 4.78 $ 4.27 77 58 1,220 80 3.75 6.71 5.91 79 58 1,740 47 5.05 9.10 7.94 80 57 2,500 57 6.80 11.75 10 . 30 73 51 3,540 23 9.09 14.77 13.11 62 44 4,440 6 11.07 17.38 15.54 57 40 6,160 6 14.50 22.36 20.18 54 39 7,580 2 17.20 26.48 24.02 54 40 10,270 1 22.20 34.28 31.28 54 41 Irregular 32 Total 320 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE Average Monthly Usage (C. F . ) Number of Customers BASE YEAR 1970 Monthly Water Bill Present Proposed Proposed Rate wlO Grants With Grants Percent Increase of Monthly Bill Proposed Proposed wlO Grants With Grants Residential - 1" Meter 1,250 18 $ 4.32 $ 7.34 $ 6.43 74 49 1,700 17 5.45 9.41 8.19 73 50 2,480 35 7.26 12.18 10.66 68 47 3,370 16 9.21 14.76 13.06 60 42 4,460 10 11.61 17.92 16.00 54 38 5,670 12 14.07 21.43 19.27 52 37 9,310 1 20.99 31. 99 29.10 52 39 12,.7 50 1 26.42 41. 96 38.38 59 45 Irregular 20 Total 130 I I I I I I I I I I I I I I I I I I I APPEND IX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE Average Monthly Usage (C.F. ) Number of Customers BASE YEAR 1970 Monthly Water Bill Present Proposed Proposed Rate WiD Grants With Grants Percent Increase of Monthly Bill Proposed Proposed WiD Grants With Grants Residential - 1-1/2" Meter 1 ,760 3 $ 7.70 $10 .60 $ 9.46 38 23 2,440 18 8.23 12.98 11. 59 58 41 3,450 8 10 .45 15.90 14.31 52 37 4,730 3 13.27 19.62 17.77 48 34 6,070 6 15.89 23.50 21.39 48 35 8,640 3 20.78 30.96 28.33 49 36 11 ,870 1 26.16 40.32 37.05 54 42 Irregular 20 To ta 1 62 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE BASE YEAR 1970 Average Percent Increase Monthly Number Monthly Water Bill of Monthly Bill Usage of Present Proposed Proposed Proposed Proposed (C.F.) Customers Rate WiD Grants With Grants WiD Grants With Grants Residential - 2" Meters 2,330 3 $11. 20 $13.85 $12.35 24 10 3,380 5 11.60 16.89 15.90 46 37 4,360 4 13.75 19.73 17.83 43 30 6,630 3 18.26 26.32 23.96 44 31 9,250 2 23.23 33.91 31.03 46 34 12,300 3 28.11 42.76 39.27 52 40 16,570 2 34.51 55.14 50.80 60 47 22,450 4 43.33 72 .19 66.67 67 54 45,260 1 77.55 135.29 123.68 74 59 Irregular 18 Total 45 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE Average Monthly Usage (C. F . ) Number of Customers BASE YEAR 1970 Monthly Water Bill Present Proposed Proposed Rate wlo Grants With Grants Commercial & Industrial - 5/8" Meters Percent Increase of Monthly Bill Proposed Proposed wlo Grants With Grants 400 129 $ 1. 75 $ 2.66 $ 2.39 52 37 730 134 2.32 4.18 3.68 80 59 1,200 52 3.50 6.34 5.51 81 57 1,720 36 4.80 8.73 7.54 82 57 2,300 38 6.16 10.89 9.44 77 53 3,590 24 9.00 14.63 12.92 63 44 4,130 6 10.19 16.20 14.38 59 41 6,160 11 14.30 22.08 19.86 54 39 7,840 1 17.50 26.96 24.40 54 39 11 ,440 1 23.76 37.40 34.12 57 44 Irregular 422 Total 854 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE Average Monthly Usage (C.F.) Number of Customers BASE YEAR 1970 Monthly Water Bill Present Proposed Proposed Rate wlo Grants With Grants Commercial & Industrial - 3/4" Meters Percent Increase of Monthly Bill Proposed Proposed wlo Grants With Grants 410 17 $ 2.45 $ 3.40 $ 3.10 39 27 720 38 2.50 4.41 3.96 76 58 1,220 30 3.75 6.71 5.91 79 58 1,810 13 5.22 9.43 8.21 81 57 2,290 17 6.34 11. 14 9.73 76 53 3,610 7 9.24 14.97 13.30 62 44 4,530 7 11. 27 17.64 15.78 57 40 6,.240 13 14.66 22.60 20.40 54 39 8,530 8 19.01 29.24 26.58 54 40 11,930 7 24.69 39.10 35.76 58 45 17 , 720 1 33.38 55.89 51. 39 67 54 23,090 2 41.43 71. 46 65.89 72 59 Irregular 48 Total 208 I I I I I I I I I I I I I I I I I I I APPEND IX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE Average Monthly Usage (C. F . ) Number of Customers BASE YEAR 1970 Monthly Water Bill Present Proposed Proposed Rate wlo Grants With Grants Commercial & Industrial - 1" Meters Percent Increase of Monthly Bill Proposed Proposed wlo Grants With Grants 1,230 12 $ 4.27 $ 7.25 $ 6.36 70 47 1,680 7 5.40 9.32 8.11 73 50 2,440 9 7.17 12.07 10.55 68 47 3,740 10 10 .03 15.84 14.06 58 40 4,450 6 11. 59 17.89 15.97 54 38 6,460 15 15.57 23.72 21.40 52 37 8,490 6 19.43 29.61 26.88 52 38 11,420 3 24.43 38.11 34.79 56 42 17,210 3 33.11 54.90 50.43 66 52 23,500 2 42.55 73.14 67.41 72 58 Irregular 53 Total 126 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE Average Monthly Usage (C. F . ) Number of Customers BASE YEAR 1970 Monthly Water Bill Present Proposed Proposed Rate wlo Grants With Grants Commercial & Industrial - 1-1/211 Meters Percent Increase of Monthly Bill Proposed Proposed W/O Grants With Grants 1,840 2 $ 7.70 $10.96 $ 9.78 42 27 2,520 8 8.40 13.21 11.80 57 40 3,280 11 10.08 15.41 13.86 53 38 4,500 6 12.76 18.95 17.15 49 34 6,350 4 16.42 24 . 31 22.14 48 35 8,440 5 20.40 30 .38 27.79 49 36 12,230 6 26.70 41. 37 38.02 55 42 28,160 2 50.60 87.56 81.03 73 60 38,520 1 66.14 115.90 106.45 75 61 55,975 1 92.32 163.03 148.34 77 61 Irregular 16 Total 62 I I I I I I I I I I I I I I I I I I I APPENDIX F WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE BASE YEAR 1970 Average Percent Increase Monthly Number Monthly Water Bill of Monthly Bill Usage of Present Proposed Proposed Proposed Proposed (C. F.) Customers Rate wlo Grants With Grants wlo Grants With Grants Commercial & Industrial - 21t Meters 2,550 12 $ 11. 20 $ 14 . 48 $ 12.94 29 16 3,580 7 12.04 17.47 15.73 45 31 4,570 15 14.21 20.34 18.40 43 29 6,120 23 17.29 24.84 22.58 44 31 8,570 19 21.94 31. 94 29.20 46 33 11 ,680 24 27.18 40.96 37.60 51 38 17,080 16 35.28 56.62 52.18 60 48 24,300 18 46.11 77.56 71.67 68 55 32,930 8 59.05 102.00 94.09 73 59 44,610 8 76.57 133.54 122.12 74 59 55,220 6 92.49 162.18 147.59 75 60 67,550 1 110.98 195.47 177. 18 76 60 71 ,920 1 117 . 54 207.27 187.67 76 60 74,380 3 121. 23 213.92 193.57 76 60 91,020 1 146.19 258.84 233.51 77 60 105,700 1 168.21 298.48 268.74 77 60 108,870 1 172.96 307.04 276.35 78 60 150,290 1 235.09 418.87 375.76 78 60 Irregular 38 Total 203 ------------------- APPENDIX F MISCELLANEOUS ACCOUNTS WATER RATE COMPARISON BY AVERAGE MONTHLY USAGE BASE YEAR 1970 Average Monthly Existing Numb e r Monthly Water Bill Percent Increase Usage Meter of Present Proposed Proposed Proposed Proposed (C. F . ) Size & Type Customers Rate wlo Grant With Grant wlo Grant With Grant 1,630 3" - Comm. or Ind. 1 $ 16.30 $ 16.25 $ 14 .75 0 (10) 26,220 4" - Comm. or Ind. 2 53.41 91.54 80.29 71 50 51,700 4" - Comm. or Ind. 1 91.63 161.09 142.58 76 56 255,930 4" - Comm. or Ind. 1 397.97 712.51 632.73 79 59 751,560 8" - Out-of-City - Res. Multiple User 1 2,686.00 4,380.83 3,693.82 63 38 700,000 8" - Special Rate 1 856.53 2,459.26 2,166.24 187 153 303,600 RDW 113 1 948.75 1,745.70 1,480.00 84 56 Total Customers 7 ------------------- APPENDIX G WATER RATE COMPARISON(l) KANSAS CITIES WITH TREAtMENT PLANTS City Minimum Gallons Charge 'Gallons 5,000 10,000 25,000 50,000 100,000 500,000 Pittsburg $2.35 2,000 $4 . 77 $10.35 $20.10 $38.85 $72.55 $276.85 Lawrence 2.00 2,000 4.10 7.60 17.10 29.60 54.60 174.60 Salina (w/o Grants) 2.20 2,244 3.89 6.97 13.91 26.60 42.99 190,67 Junction City 2.00 1,496 3.87 6.67 13.67 20.85 43.07 166.66 Manhattan 2.00 2,251 3.76 6.69 14.03 23.70 43.03 176.36 .t:- Salina (with Grants)2.00 2,244 3.44 6.04 12.25 20.74 39.33 172 . 66 .... Topeka 1.50 1,500 3.50 5.39 9.99 17.81 32.99 155.58 Wichita 2.00 3,000 3.33 6.67 16.67 28.67 48.00 224.00 Leavenworth 1.55 1,500 3.23 5.60 12.29 21. 73 40.50 165.88 Kansas City 1.80 3.05 5.25 11.65 22.30 43.61 195.65 Hutchinson(2) 1.60 3,000 2.80 5.20 11. 90 20.75 35.60 134.05 Salina (present rate) 1. 75 3,750 2.17 3.83 8.43 15.27 26.60 106.60 (l)Information obtained from the Kansas Government Journal, May 1972, based on domestic usage. (2)Does not have treatment plant. I I I I I I I I I I I I I I I I I I I STUDIES REFERENCED Wilson & Company, "Salina Water Study, 1968-2010"; October 1968. Wilson & Company, "Water Treatment Plant Improvements, Preliminary Engineering Report"; July 1970. Wilson & Company, "Water and Sewage System; Conditions and Operations Report for the Years 1968 and 1969 with Reconnnendations for 1970 and 1971"; April 1970. 42