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HomeMy WebLinkAboutW570-Preliminary Studies on Water Supply & Distribution Systems (1956)-Morrison Engineering Co PRELIMINARY STUDIES AND REPORT FOR WATER SUPPLY AND DISTRIBUTION SYSTEMS IMPROVEMENTS BOZEMAN , MONTANA 1 PROJECT SET NUMBER NUMBER 417 -3A MORRISON - MAIERLE INC . CONSULTING ENGINEERS 910 HELENA AVE. H E L E N A , MONTANA PRELIMINARY STUDIES AND REPORT FOR WATER SUPPLY AND DISTRIBUTION SYSTEMS IMPROVEMENTS CITY OF BOZEMAN, MONTANA Prepared by MORRISON-MAIERLE, INC. Consulting Engineers Helena, Montana March 1956 APPROVED ✓ ohn Ho Morrison /� TABLE OF CONTENTS Foreword Abstract . . . . e e . . e . e e e e e e e . e . e e e PART I — Basis of Design e . e e e e e e e e o e e e e 2 PART II — Present and Future Requirements. e e e e e o 6 PART III — Existing System . e e e � e e e e e e e e e 9 PART IV — D scussion of the Existing System. e e . e e 12 PART V — Additional Sources of Supply. e . e . e e . e 15 PART VI — Economies of the Additional Sources Of Supply. . . e e e . . e e e e . e . . . e 18 PART VII — Economies of Complete Waterworks Develop— ment . . . . . . . e . . . . . . . . . . . e 20 PART VIII — Proposed Improvements. . e e . . . . . . e 23 PART IX — Recommendations. . . . e . . e . . . . . 26 PART X — Financing . . . . . . . . . . . e . . . . . e 27 PART XI — Cost Estimates . . . e . e e e . e . . . . . 29 Figures Figure 1 — Population Curve . e . . . . e e . . . . . 4 Figure 2 — Mass Curve of Demand and Supply e . e e e 8 Drawings Proposed Improvements to Supply. e e . e e e e 417-3A—lP Proposed Improvements to Distribution System o 417-3A-2P FOREWORD This report has been prepared for the City of Bozeman -to bring up-to-date, the original report of 1.949 and supplemental addendum of 1951. This report contains much of the original data as presented in the previous report and addendum. Some of the proposals which appeared feasible in the original report do not appear so at this time. The investigations of the proposals outlined in this report for improving the City°s waterworks, have been studied in sufficient detail to determine the merit and economies of each Proposal. This report sum- marizes the pertinent data secured during the studies and points out the deficiencies of the present system. The abstract of this report provides a brief summary of the re- port which will be helpful in securing a general idea of the material covered in detail in the other sections. r ABSTRACT Studies of the waterworks of the City of Bozeman indicate the following facts: (1) The per capita consumption of water by Bozeman inhabi- tants is considerably higher than the national and state average because the system is not completely metered and the existing water rates are low. (2) A definite shortage of supply exists at the present time and will continue to become more acute in the future unless adequate means are undertaken for im- provements. (3) The distribution system is weak in certain sections of the city and consequently sufficient water under adequate pressures cannot be obtained. (4) Additional distribution storage is required to meet the peak demands, daily fluctuations, and fire de- mands. To correct the above deficiencies and provide the City of Bozeman with an adequate waterworks, the following recommendations are made: (1) The City take immediate steps to purchase the re- maining storage in Hyalite Reservoir. (2) The Hyalite water be developed together with the Bozeman Creek System to provide an adequate water supply. (3) The distribution system be strengthened to provide sufficient water under suitable pressures in all sections of the city. (4) The city consider the possibility of gradually in- stalling meters in order to have a completely metered system by the year 1970. -1- PART I BASIS OF DESIGN 1.01 POPULATION: In the design or modification of any waterworks system, an estimate of the future demand for water is one of the first items to be considered. Demand and consumption of water is usually stated in terms of per capita usage throughout the year. Estimating the future demand for water, therefore, requires an investigation of the future population which may be expected in the community. The increase in population of any community is a variable thing. Estimates of future populations can best be made by studying the rate of changes in past years and considering local conditions and events which may be likely to affect the growth of a community. The records of the U. S. Bureau of Census and the Montana State Bureau of Vital Statistics list the past population of Bozeman as follows: 1880 - 894 1920 - 6,183 1890 - 2,043 1930 - 6,855 1900 - 3,419 1940 - 8,665 1910 - 5,107 1950 - 11,325 The method of taking the census in 1950 changed from that previously used. Prior to 1950, only those students attending Montana State College who were from Bozeman homes, and those married students who established homes in Bozeman were considered as residents of the city. In the 1950 census, all college students who resided in Bozeman for the nine-month-school year were included in the census. This accounts for the large numerical increase in the 1950 census over the 1940 census. Had the 1950 census been conducted as in previous census years, the 1950 population of Bozeman would approximate 10,000. Since the Montana State College is a large user of water in Bozeman, it is necessary to investigate the past and future enrollment of the school. The College has experienced a healthy growth over the past years, and the College officials expect an accelerated growth in the next two decades. This accelerated growth is due to the fact that the high birth rate ex- perienced during the war years will be felt in college enrollment within the next few years. From data obtained from the College, the estimated future enrollment may be expected as follows: 1960 - 3,680 1970 - 6,200 1980 - 7,500 In considering the College enrollment, it must be remembered that a small percentage will be home residents of Bozeman. For purposes of this -2- report, it has been assumed that 10% of the total enrollment would be home residents of Bozeman. An acceptable method of predicting future population of a community is by comparing it with the past growth of similar but larger communities in the same geographical area. Figure 1 shows the predicted future population curve for Bozeman. This curve has been developed by comparing the future growth of Bozeman to the past growth of Billings, Missoula and Helena. Two curves are shown, one indicating the expected growth of the city, alone, and the other indicating the expected growth of the city plus the college. By considering the above-mentioned data, the future populations of Bozeman may be expected to approximate the following figures: Year City College Total 1960 12,600 3,300 15,900 1970 15,200 5,600 209800 1980 17,900 6,800 24,700 1.02 WATER CONSUMPTION: A study of the water records of past years was made in an effort to determine past water consumption by the inhabitants of Bozeman. The records indicate that water consumption in Bozeman greatly exceeds the consumption for communities in Montana of comparable size. This is probably due to the fact that the Bozeman system is only partially metered, and a rather low rate is charged for the water. Past water con- sumption as indicated by the records is tabulated in Table 1-1. TABLE 1-1 City Minimum Maximum Average Annual Daily Consumption 306 gpcd* 337 gpcd Average Summer Daily Consumption 442 gpcd 600 gpcd Average Winter Daily Consumption 209 gpcd 283 gpcd College Average Annual Daily Consumption 131 gpcd 152 gpcd Average Summer Daily Consumption 144 gpcd 172 gpcd Average Winter Daily Consumption 126 gpcd 148 gpcd *gpcd - gallons per capita per day The figures in Table 1-1 show that the per capita use of water by the city varies considerably throughout the year. It is noted that the college per capita use does not reflect as great a variance as the city. As popu- lation increases, the per capita use of water tends to increase. Allowing a reasonable per capita increase, the future per capita demand has been estimated from past records as indicated in Table 1-2. -3- By - __ _Ck_- _ ___ MORRISON - MAIERLE , INC. Project No. pate -- .-- - -- HELENA , MONTANA O O O co Cr Ql \ \ o \\ o c� \ y \ cn U U 8\\ o Q LO� c y W — v >- E E a� N N o O W 0 0 U a m m D 0 0 o z C� u. L u — in U L.L c `c O `c U U o O 0 2i o o v c N o uvi. E E rn O m = w w a. O O Q7 CD m I O OD O O O O O O O O O O O O 0 O O O O O O O O O O O 0 0 NN 0 00 <D IT N O m w d N N — NOiIv-i ndOd A TABLE 1-2 Month City College January 250 gpcd 160 gpcd February 260 145 March 270 1.60 April 285 150 May 335 150 June 370 165 July 620 190 August 525 190 September 420 150 October 285 .150 November 245 155 December 270 130 Normal industrial consumption has been absorbed in the per capita figures listed in Table 1-2. The exception to this is the pea cannery located in the north part of the city. The water demand for cannery operations is high and it occurs during the critical part of the year, namely during July and August. A demand of 10 million gallons per month for these two months has been used to compute the average requirements of the cannery. -5- r PART T_I PRESENT AND FUTURE REQUIREMENTS 2.01 FLOW REQUIREMENTS: Fluctuations S F tuations in the per capita de mand errand vary con- siderably. This is evident from noting the variations in past consumption as outlined in Section 1.02. Based on the future population and future per capita demand; the present and future flow requirements for Bozeman are listed in Table 2-1. TABLE 2-1 Present 1960 1970 1980 Estimated population 13,900 15,900 20,800 24,700 Average Annual Daily 4.4 MGD 4.9 MGD 6.2 MGD 7.4 MGD Average Summer Daily 7.4 MGD 8.2 MGD 9.2 MGD 10.0 WjD Maximum Daily 13.0 MGD 14.5 MGD 16.0 MGD 17.5 MGD MGD - Million gallons per day The requirements in Table 2-1 may be broken into monthly requirements as shown in Table 2-2. TABLE 2-2 Month Present 1960 1970 1980 January 101 MG 114 MG 146 MG 173 AC February 97 109 139 164 March 108 121 155 184 April ill 123 155 184 May 131 146 184 218 June 140 156 197 233 July 245 272 335 392 August 212 236 291 342 September 156 174 217 257 October 113 127 161 190 November 96 108 138 164 December 106 118 150 178 Total - MG 1616 1804 2268 2679 Total - Mcf 215 241 303 357 In addition to the flow requirements listed in Tables 2-1 and 2-2, the waterworks must provide a sufficient quantity of water for fire fighting. According to the recommendations of the National Board of Fire Under- -6- I writers, the rate and duration of fire flows for Bozeman are shown in Table 2-3. TABLE 2-3 Present 1960 1970 1980 Estimated population 13,900 15,900 20,800 24,700 Fire Flow, g.p.m. 2,720 3,920 4,550 4,850 Duration of Flow, hrs. 10 10 10 10 Total Fire Demand, M.G. 1.65 2.35 2.73 2.91 g.p.m. - gallons per minute M.G. - million gallons The Underwriters further recommend that the system be capable of deliver- ing the fire flow in the high value district when the draft is equal to the maximum daily demand. 2.02 DISTRIBUTION STORAGE: It is necessary that the water supply plus the storage capacity will meet the demand for water at all times. The re- lationship between supply and storage capacity may be determined from a mass curve of demand. The mass curve shows accumulated demand over the time period selected. Figure 2 shows a mass curve for the maximum 7-day demand that may be expected in Bozeman in 1970 and 1980. Also, plotted in Figure 2 is a line indicating a constant rate of supply. The maximum vertical ordinate between the supply line and the mass curve indicates a the amount of storage required. 1 The supply line plotted in Figure 2 represents a constant supply of 14 million gallons per day. With this supply, the mass curve indicates that approximately 6.8 million gallons of storage are required for the year 1970, and approximately 11.6 million gallons of storage for the year 1980. It is important that adequate storage be provided to take care of fire demands and fluctuating demands on the system. -7- aY-- -.—Ck— - MORRISON — MAIERLE , INC. Project No. Dote HELENA , MONTANA 0 c� o 'n u) o) o O — v „ w , 6 > a ab Cl Qr U fA O � I O O 002 ` V, �. a Cn V) Q. 1 � 7 U0 O m (D tD \N _ 7 � U C\J v+ � V) o W >- 01 \ r, L1_. \ N 'b \ I � O O O O O O O 0 O m t� w � I- r*) N SNOB-lV9 NOI-1-11A PART III EXISTING SYSTEM 3.01 WATER SUPPLY: The present water- supply for Bozeman consists of two separate systems: (1) The Lyman Creek System and (2) The Bozeman Creek System. The Lyman Creek System is located Northeast of Bozeman and was the original source of water for the city. This system was started by a private company in 1889 and was purchased by the city in 1899. The system consists of a small earth dam and concrete intake structure in Lyman Creek. The Lyman Creek water has its source in a number of springs. The water is nearly always free from turbidity, and is relatively hard. The watershed above the intake is small, uninhabited, and is seldom traversed by humans. The City has the right to the first 238-3/20ths miner's inches of flow in Lyman Creek. Only during very high run-off periods does the stream exceed this flow. The average flow in Lyman Creek approaches 134 miner' s inches dur- ing the summer, with a low of 50 miner's inches in the late winter. Water from Lyman Creek is treated with chlorine and ammonia. The Bozeman Creek system is located South of Bozeman and was developed when the Lyman Creek Supply proved inadequate. The system consists of an intake and small settling basin on Bozeman Creek about six miles South of Bozeman. The water taken from Bozeman Creek has its source in run-off from the watershed above. The water shows some turbidity all of the time, and con- siderable turbidity during periods .of high run-off. The watershed above the intake is a "closed" watershed. The City has 1866 rights to 200 miner's inches of the normal flow from Bozeman Creek. There is an 1865 right lower down, but due to the nature of the channel below, a court ruling gave the water to the City of Bozeman in preference to the 1865 right. The City also has 50 miner's inches of 1878 rights, but these rights only amount to flood water. During some years, the minimum flow in Bozeman Creek is considerably less than the 625 inches of decreed 1866 water rights. As a result, the full 200 inches of Bozeman Creek rights cannot be depended upon to be available. Mystic Lake is located about seven miles above the Bozeman Creek intake. The Bozeman Creek Reservoir Company constructed an earth dam at the Lake outlet so as to provide about 1480 acre feet of useful storage of water. The storage is divided into twenty shares, each share amounting to 100 inches of water for a period of 15 days. Six shares of the storage is owned by the City of Bozeman and this water is used to supplement the Bozeman Creek Water during summer months. The other 14 shares are owned by farmers along Bozeman Creek. The water from Bozeman Creek and Mystic Lake is treated with chlorine and ammonia. -9- In addition to the above named supplies, the City has contracted with the Middle Creek Reservoir Association for 1050 acre feet of water annually from the Hyalite Creek Reservoirs At the present time this water is not utilized in the Bozeman water supply system. 3.02 DISTRIBUTION RESERVOIRS: Distribution reservoirs are provided in both the Lyman Creek and Bozeman Creek Systems. The Lyman Creek reservoir is an open cavity type reservoir and is located at an elevation approxi- mately 222 feet above the ground level at the City Hall. Water from the intake on Lyman Creek is carried in two 12-inch tile pipes about 2,700 feet where they connect into an 18-inch-cast-iron pipe. The cast-iron pipe extends about 1,400 feet to the reservoir. The reservoir is nearly entirely in excavation and is lined with concrete. The top three or four feet of the concrete lining is cracked and spalled. An earth embankment around the reservoir slopes down flush with the top of the sloping concrete lining. The supply line from the reservoir to Bozeman is about two miles long and is 18-inch-cast-iron pipe except for a short length of 16-inch-cast-iron pipe immediately below the reservoir. The reservoir was originally designed as a 6-million-gallon reservoir. The Bozeman Creek Reservoir is located about 22 miles south of the City. The reservoir is an open-cavity-type reservoir constructed in excavation and fill and lined with concrete. The reservoir is located at an eleva- tion approximately 305 feet above the ground level at the City Hall. This elevation puts the reservoir about 83 feet higher than the Lyman Creek reservoir. Water is carried from the small settling basin at the intake on Bozeman Creek through 18-inch-tile pipe to the distribution reservoir. The dis- tance is about 3-3/4 miles. From the reservoir, the water is carried to Bozeman through approximately 22 miles of 18-inch-steel pipe. The reservoir was originally designed as a two-million-gallon reservoir. Later, concrete walls were added to increase the capacity to about three million gallons. The side walls have cracked and heaved; and the filled area has settled about 12 feet at one corner of the reservoir. As a result, the reservoir will not hold water above the two-million-gallon level. Considerable maintenance is required to keep the cracks in the reservoir from leaking. 3.03 DISTRIBUTION SYSTEM: The present water distribution system of Bozeman is supplied from the Lyman Creek Reservoir and the Bozeman Creek Reservoir. The supply line from the Lyman Creek Reservoir enters the distribution System at the extensions of Birch Street and north Wallace Street. The supply line from the Bozeman Creek Reservoir enters the distribution system on South Black Street. -10- The main loops in the distribution system consist primarily of 10, 12, and 14 inch lines. The remainder of the distribution system is 6 inch and 4 inch lines. The 6 inch and 4 inch lines, in many cases, run con- siderable lengths without proper cross ties. The general slope of Bozeman is down from South to North with an elevation difference between South and North extremes in excess of 150 feet. To provide suitable pressures in the higher South section of town, the Bozeman Creek Reservoir was constructed at an elevation approximately 83 feet above the Lyman Creek Reservoir; and pressure regulating valves were installed on the North-South distribution lines at College Street. The pressure regu- lating valves have since been put out of service and all lines are shut off at College Street. Because of the excessive use of 6 inch and 4 inch lines within the main loops without proper cross ties, pressures in the west side of the City just north of College Street are very poor. -11- PART IV DISCUSSION OF THE EXISTING SYSTEM 4.01 WATER SUPPLY: As outlined in Section 3.01, the water supply of Bozeman is furnished by Lyman Creek and Bozeman Creek supplemented by Mystic Lake storage. Table 4-1, shows the relationship between the future demands and the present supply available without using Mystic Lake water, considering minimum winter flows and authorized rights in Lyman Creek and Bozeman Creek. TABLE 4-1 Present _1960 Month Demand Supply Deficit Demand Supply Deficit Jan. 101 M.G. 176 M.G. - 114 M.G. 176 M.G. - Feb. 97 164 - 109 164 - March 108 176 - 121 176 - April ill 170 - 123 170 - May 131 176 - 146 176 - June 140 106 34 156 106 50 July 245 110 135 272 110 162 August 212 110 102 236 110 126 Sept. 156 106 50 174 106 68 Oct. 113 176 - 127 176 Nov. 96 170 - 108 170 Dec. 106 176 - 118 176 - Total 321 M.G. Total 406 M.G. 1970 or 990 A.F. or 1240 A.F. 1980 Month Demand Supply Deficit Demand Supply Deficit Jan. 146 M.G. 176 M.G. - 173 M.G. 176 M.G. Feb. 139 164 - 164 164 March 155 176 - 184 176 8 April 155 170 - 184 170 14 May 184 176 8 218 176 42 June 197 106 91 233 106 127 July 335 110 225 392 110 282 August 291 110 181 342 110 232 Sept. 217 106 ill 257 106 151 Oct. 161 176 - 190 176 26 Nov. 138 170 _ 164 170 Dec. 150 176 - 178 176 2 Total 616 M.G. Total 884 M.G. or 1890 A.F. or 2720 A.F. M.G. - million gallons A.F. - acre feet -12- Utilizing the available water in Mystic Lake, which amounts to 446 acre feet, the total deficit of the present supply is summarized as follows: Present 1960 1970 1980 Yearly deficit 990 A.F. 1240 A.F. 1890 A.F. 2720 A.Fo Mystic Lake Storage 446 446 446 446 Total deficit A.F. 544 794 1444 2274 It is observed from Table 4-1 and the above summary that the present supply available is not sufficient to meet even the present day demands, and some method of rationing may be expected to be employed unless further develop- ment of the present supplies is undertaken. Table 4-1 indicates that the minimum winter flows in Lyman Creek and Bozeman Creek will meet the winter demands of Bozeman until 1980. The deficit in the present supply appears in the peak summer months, and the accumulated deficit during these months exceedsthe water available in Mystic Lake. This deficit, of course, increases in future years. The settling basin at the Bozeman intake is not of sufficient capacity to provide effective sedimentation for the flows encountered. Consequently, the maximum amount of turbidity in the Bozeman Creek water is not being removed. 4.02 DISTRIBUTION RESERVOIRS: The Lyman Creek reservoir has a nominal design capacity of 6 million gallons. Since one of the purposes of a dis- tribution reservoir is to store water for use during periods of peak de- mand, the supply line from the reservoir must be capable of delivering the peak demand to the distribution system. Investigation of the distribution system indicates that the present supply line from Lyman Reservoir prevents full utilization of the Lyman Reservoir capacity during peak demand periods. The investigation indicates that the effective storage capacity of Lyman Reservoir during peak demand periods is approximately 31% of the total stor- age required to balance the peak demand. The Bozeman Reservoir containing 2 million gallons can be utilized to its full capacity. From the mass curve in Figure 1, it is shown that with the present supply, a storage capacity of approximately 17 million gallons is required to bal- ance the present day peak demands. The present storage capacity is as follows: Bozeman Reservoir 2 M.G. Lyman Reservoir 17 x .31 5.3 M.G. Total 7.3 M.G. The present system, therefore, lacks approximately 10 million gallons stor- age. -13- 4.03 DISTRIBUTION the western SYSTEM The distribution s section of the City. Tnvestigatioystem�he Bozeman is weak to day peak demands, indicates Of College Street, that extremely low system u,,der present The 6 inch and 4 pressures exist too great a distance wit inch lines are Just north at desirable pressures,without cross t1eS to furnishing flow Over be able to del_ive, peak flows -J%i._ PART V ADDITIONAL SOURCES OF SUPPLY 5.01 LYMAN CREEK: At the present time, the entire flow of Lyman Creek is utilized during periods of high demand. Enlarging existing pipes and th-e reservoir would serve no purpose. Additional water could be obtained from Lyman Creek only by the construction of a large storage reservoir to collect and hold excessive spring and winter run-off from the watershed. Because of the topography of Lyman Creek Canyon, the construction of a dam for impounding any quantity of water appears at this time to be too costly for the amount of water to be gained. The possibility of diverting Chum Creek, which lies just north of Lyman Creek, to the Lyman Creek watershed was investigated. To divert Churn Creek would require first of all, the purchase of all water rights existing on the waters, plus the construction of suitable canals or pipelines to convey the water to the Lyman Creek watershed. Development of Churn Creek may be expected to yield an additional 60 to 70 inches of water. All factors considered, indicate that further development of the Lyman Creek system at this time is not economically feasible for the added amount of water which may be obtained from such development. 5.02 BOZEMAN CREEK: The flow in Bozeman Creek during the summer months is all accounted for by decreed water rights. No additional summer supply can be obtained in Bozeman Creek without buying some of the decreed rights. It is possible to enlarge Mystic Lake to store more of the winter run-off. The watershed contributing to Mystic Lake has an area of approximately 4.3 square miles. Run-off studies made by the Montana Experiment Station indicate that the average total yearly run-off from the area approximates 745 acre feet. Deducting summer run-offs, which must be allowed to flow through for the decreed rights, would leave an average of approximately 500 acre feet available for storage. This amount will not satisfy the present deficit of supply. The possibility of constructing another reservoir further down Bozeman Creek with a larger watershed is possible. A satisfactory site for such a dam is located at an elevation of approximately 5700 feet. To obtain the required storage would require a dam of considerable size, the cost of which would be excessive. 5.03 HYALITE CREEK: The City of Bozeman has contracted with the Middle Creek Reservoir Association for 1050 acre feet of water annually from the Hyalite Creek Reservoir. This water is not used at the present time in the supply of Bozeman. Refering to Section 4.01, it is apparent that the immediate utilization of this water will satisfy the deficit in supply until some time between 1960 and 1970. There is, at the present time, 1592 acre feet in Hyalite Reservoir which, according to the State Water Conserva- -15- tion Board may be available to the City of Bozeman. By acquiring this addi- tional water, the City would have an annual amount of water in Hyalite Reser- voir of approximately 2650 acre feet. This amount of water, allowing for losses between the reservoir and the City's intake, will just meet the sup- ply deficit through the year 1980. No consideration has been given to the use of normal flows in Hyalite creek during off peak months, since this water can be entirely utilized to fill the reservoir, if necessary. The development of Hyalite Creek has two possibilities: (1) the water can be brought directly into the City or (2) it can be brought around to Bozeman Creek to form a combined Hyalite-Bozeman Creek system. The development in either case would require the construction of intake facilities on Hyalite Creek near the mouth of the canyon. 5.04 TRADING HYALITE RESERVOIR WATER FOR MYSTIC LAKE WATER: A plan for trading the City's 1050 acre fee of Hyalite water for the water in Mystic Lake has been considered. The useful capacity of Mystic Lake is about 1488 acre-feet, of which the City now has the use of 446 acre-feet and the farmers along Bozeman Creek have the remaining 1042 acre-feet. The topography of the area is such that it would be possible to construct a canal from Hyalite Creek and divert the water into Bozeman Creek, thereby trading the City's 1050 acre-feet in Hyalite for the farmers 1042 acre-feet in Mystic Lake. If this plan was undertaken, the deficit in supply would be satisfied until 1970, at which time the City would again be faced with an insufficient amount of water. In addition to not being able to secure an adequate amount of water for a suitable distance into the future, another disadvantage to this plan is the numerous problems, mostly of a legal nature, that would be encountered. The shareholders of Mystic Lake water would expect to receive the Hyalite water at no higher cost than the Mystic Lake water. Therefore, the initial cost of the diversion canal, and maintenance of the canal, would be most likely borne by the City. 5.05 WELL SUPPLY: Test wells constructed by the City of Bozeman in 1935- 1936, and a survey conducted by the U. S. Department of Interior in the summer of 1954 confirm that an underground source of water exists in the Bozeman area. In-ormation obtained in 1935-1936, and from the 1954 survey, indicate;; that Bozeman lies on the eastern edge of a geological formation consisting of an alluvial fan of a low pervious composition. The alluvial material consists of layers of topsoil, clay, sand and gravel of various thicknesses and permeability. At a depth of 150 to 200 feet there is an impervious layer of material, consequently, wells deeper than 200 feet will produce little if any water below this layer. To develop wells to the extent that they would furnish an amount of water available in Hyalite would require approximately 14 wells each with a capacity of 450 gallons per minute. Several conferences with Mr. Frank A. Swenson, District Geologist for the U. S. Department of Interior, have been held. Mr. Swenson is of the opinion that wells with capacities of 500 gallons per minute may be expected in the area one to two miles west f -16- of the City. Mr. Swenson was not optimistic about obtaining wells of this capacity in, or immediately near, the city limits. One of the intangible factors in a well supply is the availability and amount of ground water. Although the geological formations west of Bozeman are conducive to well development, one can only be sure after thorough and exhaustive tests are completed. These tests are expensive and time consuming. The factor is, also, present as to how long the well supply will last. It must be remembered that the Board of Fire Under- writers are much more favorable toward a gravity type system rather than a well system. 5.06 SUMMARY: A summarization of the above discussed additional sources of supply may be outlined as follows: SOURCE CONCLUSION (1) Lyman Creek, including (1) Not feasible at the pres- Churn Creek development ent time. Too costly for the additional amount of water obtained. (2) Bozeman Creek (2) (a) Securing additional rights (a) Doubtful (b) Enlarge Mystic Lake (b) Not feasible (c) New storage reservoir (c) Not feasible at the present time (3) Hyalite Creek (3) Feasible (4) Trading Hyalite for (4) Not feasible considering Mystic Lake water the amount of water to be obtained and the legal problems involved. (5) Wells (5) Feasible, should tests indicate sufficient water available. i -17- PART VI ECONOMICS OF THE ADDITIONAL SOURCES OF SUPPLY 6.0.1 GENERAL: Regardless of what source is to be developed, certain design criteria must be met in the development of that particular source. From Figure 1, the mass curves of demand, it is shown that the supply of water from all sources, including Lyman Creek, should be approximately 14.0 million gallons per day. With this supply, distribution storage required in 1970 is 6.8 million gallons, and in 1980 it is 11.6 million gallons. Assuming that Lyman Creek Reservoir will have an effective capacity of 31% of the total storage required (Section 4.02) , the additional storage that must be provided, therefore, is 4 million gallons in 1970 and 8 million gallons in 1980. It is mentioned in Section 5.06 that the Hyalite development, and possibly the well development, appear to be the most feasible additional sources of supply. It remains, therefore, to investigate these sources in regards to the economies involved in each case. 6.02 HYALITE DEVELOPMENT: Section 5.03 points out that two alternatives for the development of Hyalite are possible: (1) by bringing the water directly to the City, or (2) by bringing the water to Bozeman Creek and forming a combined Hyalite-Bozeman Creek System. The development of a separate Hyalite System requires intake facilities on Hyalite Creek, a pre-sedimentation basin, and distribution storages In addition to developing Hyalite, the Bozeman System would be strengthened by construction of a new pre-sedimentation basin and new distribution storage. The cost of a separate Hyalite System, including the strengthening of the Bozeman System, is estimated at $1,441,628.00. A detailed cost estimate is given in Section 11.03. The combining of Hyalite with* Bozeman Creek requires intake facilities on Hyalite Creek, but the pre-Sedimentation basin and i di tr s bution storage facilities can be utilized by both Hyalite and Bozeman Creek waters. The cost of bringing Hyalite water to Bozeman Creek and forming a combined Hyalite-Bozeman Creek system is estimated at $1,368,667.50. A detailed cost estimate is given in Section 11.04. It is apparent that a savings in first cost of, approximately, $75,000.00 may be realized by combining Hyalite with the Bozeman System. It may be expected, however, that additional savings will appear in the annual charge since the maintenance on the two separate systems will be more than on the combined system. Another factor favoring the combined Hyalite-Bozeman System is that the Montana State Board of Health may eventually require complete treatment of the Bozeman Creek and Hyalite Creek waters. Should this occur, one treatment plant would serve the combined system, while two plants would be required if the systems were separated. -18- The logical conclusion, therefore, from an engineering standpoint and from an economical standpoint; the combining of Hyalite water with Bozeman Creek water to form a combined Hyalite-Bozeman System is the most feasible and practical way to develop the Hyalite water. 6.03 WELL SUPPLY: The first item in considering well development is the number of wells required. It has been mentioned that a supply of 14 million gallons a day is required. Assuming Mystic Lake water is to be used only during the peak summer months, the wells must supply approximately 6400 gallons per minute. With an average capacity of all wells taken at 450 gallons per minute, this will require 14 wells. With wells as the source of supply, the Board of Fire Underwriters will require that auxiliary power plants be used on at least half of the wells. The estimated cost of develop- ing 14 wells with half of them equipped with auxiliary power plants is esti- mated at $562,884.00. A detailed cost estimate is given in Section 11.06. In addition to the well development, the Bozeman Creek System must be strengthened as outlined above. -19- PAR T VIII ECONOMICS OF COMP LETE WATERWORKS DEZAPMEIVT 7'-01 GENERAL; other In addition Bozeman waterworks are to develo necessary for theng an additional system. To ultimate d source of water, to its maximum benefit utilize evelopment of the and additional facilitieSertain ex the existing Lyman Creek System is estimated Penditures must be System The cost of work made on the at $82,000°00° necessary on the Lyman The distribution s yman Creek pressures system of the in view of In flow must be strengthened the increased all parts of the city. gts . to development of flows which will Y� This is provide adequate system additional Particularly Is estimated at supply° The be entering the Y important $271,436°40° cost for stren system from the The above - gthening the distribution expenditures source of must be added to entin essary Order to 9ene or ultimate improvementrIve at a the cost of development Of total cost of pment of the new such Ion of Bozeman citizens the entire cost item. ants improvement:>over the should nec- Accordingly, the cost life of derive the system. The pres- design of the20-year-bondaximum benefits from a 5--t o designYears falling between entire a improvements, have retirement periods and 1975 been plan. Pre-sedimentation savings is reflected ' and 1980° B pro?ected to basin_�and the distribution the cost of Y considering two istribution Construction o The costs of the entirereservoirs, f the al 1592 acre-feet ofHyalke water�� assuming the are listed City obtains the addition_ in Table 7_1: TABLE 7 Pro _ Combined Hyalite Bozema Hyalite- n System - Design year 1980 Bozeman De Lym veloan System Imp.roveme pts nt $1,368 Distribution S ,66 7°50 Hyalite Water System Improvements 282,000°00 cost ,436°40 55 380°00 Pro osal #2 _ Comb° fined Hyalite-Boz $1 777 483°90 e eman System - Design gn Year 1970_1975 Lyman S Development Distribution Improvements $1'116,781°50 ibution System Improvement Hyalite Water Cost s 27i3O ,436-40 55 380m00 $1,525,597°90 -20- Proposal #3 - Well Supply - Design Year 1980 Bozeman System Improvements $391,607.50 Lyman System Improvements 82,000.00 Well Development 562,884.00 Distribution System Improvements; 271,436.40 $1,307,927.90 7.02 ANNUAL CHARGES: A true evaluation of the economies involved in the three proposals outlined in Table 7-1 can be made by studying the annual charges required to retire the bonds and to maintain the system in each case. Annual charges of each of the three proposals, based on the amount of bonds required to finance the improvements are given in Table 7-2: TABLE 7-2 Proposal #1 - Bond issue of $1,750,000.00 15-year 20-year After Retirement Retirement Retirement Principal $116,500.00 $ 87,500.00 - Interest (say 3%) 52,500.00 52,500.00 - Operation 80,000.00 80,000.00' $ 80,000.00 Depreciation 18,300.00 18,300.00 18,300.00 Reserve 20,000.00 20,000.00 - Pumping (Lyman) 5,750.00 7,000.00, 9,500.00 Total Annual Charges $293,050.00 $265,300.00 $107,800.00 Proposal #2 - Bond Issue of $195009000.00 Principal $100,000.00 $ 75,000.00 - Interest (3%) 459000.00 459000.00 ' - Operation 80,000.00 80,000.00' $ 80,000.00 Depreciation 16,600.00 16,600.00 16,600.00 Reserve 209000.00 209000.00 Pumping (Lyman) 5,750.00 7,000.00 9,500.00 Total Annual Charges $267,350.00 $243,600.00 $106,100.00 Proposal #3 - Bond Issue of $19300,000.00 Principal $ 86,750.00 $ 65,000.00 - Interest (3%) 39,000.00 39,000.00 - Operation 85,000.00 85,000.00 85,000.00 Depreciation 21,500.00 219500.00 21,500.00 Reserve 20,000.00 20,000.00 - Pumping (Lyman) 5,750.00 7,000.00 9,500.00 Pumping (Wells) 9,810.00 13,500.00 15,000.00 Total Annual Charges $267,810.00 $251,000.00 $1319000.00 -21- It is apparent in studying the annual charges, that although Proposal #3 (well supply) is lowest in first cost, the annual charges over a 20-year- retirement period are higher than with Proposal #2. Higher depreciation values applied toward eventual replacement of the well pumps, and the annual pumping cost are reflected in the annual charges of Proposal #3. In addition, the annual charge after the bond retirement of Proposal #3, is considerably more than Proposal #2. The increase is again due to the increased maintenance and depreciation on the pumping equipment, and on the annual pumping charge. -22- f PARS V�III PROPOSED IMPROV�S 8.01 GENERAL: Proposal #2�p On an engineering g basis and from the economies involved, Bozeman to in Part VII, should be undertaken b Provide an adequate waterworks s Proposal is outlined system. Y the City of in this part of the report. The work involved 8.02 in this HYALITE CREEK INTAKE S Hyalite water to TR UCTURE; The intake structure for d' a concrete spillway. Creek would pillway. The intake COnsist of a small everting Of the canyon at the structure would be earthen dam with Millpond ditch. site of the present diversion dam cofed near the mouth let for the The new intake structure would the old Flanders to be Millpond ditch in addition to a incorporate the used by the City. new outlet for present out- the Hyalite water 8.03 SUPPLY LINE TO reinforced BOZEMAN CREEK: From Millpond ditoncreth to a pipe line would the new intake structure Point at the be laid adjacent to the route of the this location, a small h present location of From the hydraulic the old millpond. At gradient break box gradient break box would Will convey e 'en 18 inch di be constructed, will be Y the water to the mouth of dipped and wrapped steel designed to Carr Bozeman Creek Canyon. The A pe line Y approximately 5,500 gallons per minute. supply line 8.04 SEDIMENTATION FACILITIES: 8-0 sedimentation basin will At the mouth of grid Bozeman be constructed eat manboth Creek canyon, a Pre- Creek water. The pre-sedimentation treat both the Hyalite water will be designed in units for so that additions can readily be asin will be concrete and such unit< develops. The for a flow of 5 million initial basin will y be made as the need Of 1.25 million gallons per day. provide 8 hours detention gallons each. Y° The basin will be designed g in units Treatment of the water with chlorine and sedimentation. Disinfection at t wi will i as recommended b this point will allow rmnediately follow the y the Board of Health. ample contact time 8.05 SUPPLY LINE TO line to the RESERVOIR: In addition to Present south side reservoir the existing pipe line will be placed ' a new 18 inch reinforced concrete tributin storage Placed between the sedimentation facilities and source of This will provide two the dis- supply to the distribution zeservoir. separate lines from the 8.06 DISTRIBUTION STORAGE:south side reservoir makes The deteriorated storage by renovatin it uneconomical to conditions of the existing istina g et. It is attempt to secure additional reservoir, a new 4_ proposed to install , adjacent The reservoir will be covered to reservoir, mendations, to comply with the Board of Health's recom- -23- 8.07 SUPPLY LINE TO CITY: A new 24-inch-dipped and wrapped-steel-supply line from the new distribution reservoir to the City will be installed. The existing 18-inch-steel-supply line will continue to be used. This construction will provide two separate supply lines from the reservoir into the city. The new 24-inch-supply line will roughly follow the route of the existing 18-inch line and will enter the city on South Black Street. 8.08 LYMAN RESERVOIR REPAIRS: The top three or four feet of the exist- ing reservoir which is cracked and spalled will be removed and replaced with a new section of lining with sufficient footing and an integral curb wall extending about two or three feet above the surrounding ground. The ground around the curb wall would be graded to slope away from the reser- voir and a concrete sidewalk and gutter constructed to carry surface water from the reservoir. In addition to the new lining and curb wall, a concrete curb would be in- stalled around the overflow to maintain a constant high water level in the reservoir. 8.09 LYMAN SYSTEM BOOSTER STATION: In order to eliminate the pressure regulating valves on College Street and to equalize the difference in head between the Lyman and Bozeman system reservoirs, it is proposed to construct a booster pumping station in the vicinity of Birch and Rouse. The booster pumps will be operated from a pressure differential in the distribution system. The piping will be so arranged that at times of low demand when the pumps are not running, water will flow into Lyman Res- ervoir from the Hyalite Bozeman System until the Lyman Reservoir is full at which time an altitude valve would prevent the Bozeman-Hyalite water from being wasted out of the overflow. 8.10 DISTRIBUTION SYSTEM: To properly strengthen the existing distri- bution system, a large outside loop in the south and middle portion of Bozeman is proposed. A 14-inch line will be placed on College Street from South Black Avenue to 15th Avenue, thence south on 15th Avenue to Lamme Street. All north-south mains will be tied to the new loop where they now exist. The pressure-regulating valves along College Street will be re- moved. Ten inch ties will be made on Lamme Street from the new 14-inch main on 15th Avenue to the existing 14-inch main on Rouse Street; and on Curtiss Street from 15th Avenue to Seventh Avenue. These loops and ties will furnish an adequate amount of water at desirable pressures to all parts of the City. In addition to the above-mentioned-immediate improvements, it is recommended that, whenever replacement of any of the 4-inch lines in the system is re- quired because of deterioration or breakage, that they be replaced with 6-inch minimum in the outlying residential areas and 8-inch minimum in the densely-built-residential areas and mercantile districts. -24- Future strengthening of the system may also be undertaken as the demand requires by placing a 10-inch line on llth Avenue from Lamme Street to Durston Road and thence east on Durston Road and Peach Street to Bozeman Avenue. PART IX RECOMMENDATIONS 9.01 GENERAL: Summarizing the various parts of this report, and to provide the citizens of Bozeman with an adequate waterworks system, the following recommendations are made: (1) The City of Bozeman take immediate steps to purchase the additional storage capacity in Hyalite Reservoir. This storage at the present time amounts to 1592 acre-feet. ESTIMATED COST: $55,380.00 (2) The City of Bozeman develop the Hyalite Reservoir water by combining with the Bozeman Creek-Mystic Lake supply to form a Hyalite- Bozeman supply system. ESTIMATED COST: $1,116,781.50 (3) The City of Bozeman undertake the necessary repairs and modi- fications on the Lyman System supply in order to receive the maximum bene- fit from this supply. ESTIMATED COST: $ 82,000.00 (4) The City of Bozeman undertake the strengthening of the ex- isting distribution system as outlined in Section 8.10. ESTIMATED COST: $ 271,436.40 (5) It is also recommended that the City of Bozeman work toward the eventuality of having a completely metered system. -26- PART X FINANCING 10.01 GENERAL: If the community of Bozeman decides to undertake the improvement and recommendations outlined in this report, it will be nec- essary to go to a bond issue of $1,500,000.00 to finance the work. Rev- enue bonds to be paid by revenue from the water department would be the recommended type of bond issue for these improvements. 10.02 PRESENT OPERATION INCOME AND EXPENSES: The City Water Department has complete operating records of the water sold, and income and expenses from the furnishing and selling of water. Table 10-1 shows the operating income and expenses over the last four fis- cal years. TABLE 10-1 1951-52 1952-53 1953-54 1954-55 Water used - M. G. 1310 1345 1445 1390 Operating Income $79,574.92 $87,360.35 $98,532.94'$87,080.54 Non-operating Income 4,511.85 1,595.84 365.62 519.86 Total Income 84,086.77 88,956.19 98,898.56 87,600.40 Operating Expenses 63,035.58 85,279.19 97,354.47 74,579.69 Net Income $21,051.19 $ 3,677.00 $ 1,544.09 $13,020.71 Income per M.G. $64.19 $66.14 $68.44 $63.02 Expenses per M.G. 48.12 63.40 67.37 53.65 10.03 ANNUAL COST FOR IMPROVEMENTS: Table 7-2 gave an annual cost of the improvements at $243,600.00 based on 20-year retirement of bonds. Based on an average annual use of 1390 million gallons in 1954-55, the estimated year- ly cost of the improvements would require an income of approximately $175.25 per million gallons. This would require an increase over the 1954-55 income of about $112.23 per million gallons. A study of the existing water rates for the City of Bozeman shows that the flat rate users are paying a little over one-half as much for their water as the metered customers. It is, also, quite likely that the flat rate users are using considerably more water per capita than the metered cust- omers, making the disparity between the two types of users even more pro- nounced. For this reason it is suggested that, in setting up a new rate structure, the increased rate to flat rate customers be a greater percentage than to the metered customers. By making the cost to flat rate users approx- imately equal to that for metered users, the resistance to the use of meters will be decreased. The eventual conversion to an entirely metered system will become increasingly important from the standpoint of eliminating waste as the city grows to a point where demand approaches the total capacity of -27- the supply being developed at; This time. Any additional. supply over that proposed will mean going to some ether water shed at much greater expense. -28- PART XI COST ESTIMATES 11.01 GENERAL: The following cost estimates are based, as nearly as can be determined, on construction prices in effect at the time of writing this report. On all cost estimates, an allowance of 20 per cent has been added to take care of price fluctuations, unforseen conditions which may be encountered in the final design, legal fees, financing, engineering, etc. 11.02 LYMAN SYSTEM IMPROVEMENTS: Reservoir: 600 CY Excavation @ $2.00 1,200.00 400 Sq. Yd. Slab removal @ 2.50 19000.00 450 CY concrete @ 65.00 29,250.00 45,000 lbs.Re-Steel @ 0.25 11,250.00 $42,700.00 Booster Station: Building, 720 sq. ft. @ $12.50 9,000.00 Pumps and motors 10,800.00 Pump controls 600.00 Piping, valves, etc. 5,230.00 $25,630.00 Total $68,330.00 Plus 20% 13,666.00 $81,996.00 Say $82,000.00 11.03 HYALITE SYSTEM DIRECT TO CITY Bozeman System Repairs 900 ft. - 18" R.C.P. @ $6.75 6,075.00 Pre-sed basin 94,200.00 Chlorination bldg, equip. etc. 8,375.00 275 ft. - 18" R.C.P. @ $6.75 1,856.25 3 M.G. Reservoir 195,000.00 $305,506.25 Hyalite System Intake Facilities 10,000.00 2500 ft-24" RCP @ $12.50 31,250.00 Pre-sed basin 145,000.00 Chlorination house, equip. 9,375.00 20,500 ft.-18" RCP @ 6.75 138,375.00 5 M.G. Reservoir 250,000.00 19,800 ft-24" steel pipe @ $15.75 311,850.00 895,850.00 Total 1,201,356.25 Plus 20% 240,271.25 $ 1,441,627.50 -29- 11.07 DISTRIBUTION SYSTEM: On College Street - Black to 15th 5500 ft-14" MJCIP @ $12.50 $68,750.00 Fittings 6,552.00 15 - 14" GV & VB @ 500.00 7,500 M i 30 - 6" GV & VB @ 105.00 3,150.00 $85,952.00 On 15th - College to Lamme 3550 ft. - 14" MJCIP @ $12.50 44,375.00 Fittings 2,569.50 3 - 14" GV & VB @ 500.00 1,500.00 1 - 6" GV & VB @ 105.00 105.00 2 - 10" GV & VB @ 225.00 450.00 I 5 - 5i" Hydrants @ 315.00 1,575.00 I� $50,574.50 ICI On Curtiss - 15th to 7th 2,750 ft. - 10" MJCIP @ 8.75 24,062.50 Fittings 1,181.25 5 - 10" GV & VB @ 225.00 1,125.00 10 - 6" GV & VB @ 105.00 1,050.00 $27,418.75 On Lamme - 15th to Rouse 6,400 ft. 10" MJCIP @ 8.75 569000.00 Fittings 1,536.75 13 - 10" GV & VB @ 225.00 2,925.00 14 - 6" GV & VB @ 105.00 1,470.00 4 - 4" GV & VB @ 80.00 320.00 $62,251.75 Total $226,197.00 Plus 20% 45,239.40 $ 271,436.40 -30- I i 11.04 fIYALITE - BOZEMAN SYSTEM - DESIGN YEAR 1980 Intake facilities $10,000.00 2500 ft. - 24" RCP @ $12.50 31,250.00 Grade break boxes 1,000.00 17,000 ft-18" Steel pipe @ $10.00 170,000.00 900 ft. -18" RCP @ 6.75 6,075.00 Pre-sed Basin 229,500.00 Chlorination house, equip.etc. 11,375.00 275 ft.-18" RCP @ 6.75 1,856.25 13,500 ft.-18" RCP @ 6.75 91,125.00 8 M.G. Reservoir 360,000.00 14,500 ft-24" Steel pipe @ $15.75 228,375.00 $ 1,140,556.25 Plus 20% 228,111.25 $ 1,368,667.50 11.05 HYALITE - BOZEMAN SYSTEM - DESIGN YEAR 1970 Intake Facilities 10,000.00 2500 ft-24" RCP @ $12.50 31,250.00 Grade break boxes 19000.00 17,000 ft-18" steel pipe @ $10.00 170,000.00 900 ft.-18" RCP @ 6.75 6,075.00 Pre-sed Basin 1599595.00 Chlorination house, equip.etc. 11,375.00 275 ft.-18" RCP @ 6.75 1,856.25 13,500 ft. -18" RCP @ 6.75 91,125.00 4 M.G. Reservoir 220,000.00 14,500 ft.-24" steel pipe @ $15.75 228,375.00 $930,651.25 Plus 20% 186,130.25_ $191169781.50 11.06 WELL SUPPLY 3000 ft. - 8" steel pipe @ 4.50 139500.00 2600 ft. -10" steel pipe @ 5.45 14,170.00 600 ft.-14" steel pipe @ 7.75 4,650.00 8500 ft-18" steel pipe @ 10.00 85,000.00 7-wells, including pump, piping pumphouse, etc. @ 23,500 164,500.00 7-wells, including pumps, piping pumphouse, etc. wells' auxiliary powerplants @ 26,750 187,250.00 $469,070.00 Plus 20% 93,814.00 $ 562,884.00 -31- i I r CITY LIMI—TS WEST OAK ST T EAST OA ST. I —_ -—-—- —- _--— EAST OAK ST I Boos 'er I ion /6� BIRCH NI - GALLATIN COUNTY FAIR GROUND ❑ NEMLOC ST O o r..-- JUNI �ST j i WEST TAMARACK ST EAST TAMARAGO I ST x ASPS ❑ EAST a I AI SPEY STREE StB lion JI - / II 2 rl w G07T0 WOOD ❑ �T ❑ I a O�y� I � D/O DURSTON ROAD _ 5 H T_a 1:1 EASTa a /0" I P OH ❑ STREE ❑ ❑,� SH WEST 7L __ O El STRE ❑ - IFf LFRIDL�l GRAN STREET F. ¢ LI!T o �= Park o tl� WEST D m x II-I LJ STREET V, II� WEST ❑ r ❑ -I � �i 6 ¢ o I a BEALL � THE EAST efALL ST 3 ' /0 wl ❑ WEST ❑ ❑ STRE ❑ O EAST /O i LAMME STREET �I EA WEST ❑�❑ MENOE IXALL ❑ 1-2❑ ❑ EAST ❑ MENDER ALL a D n I STREE oI a ❑ �II Icou.f ax B oze w zl WEST ��J �use � H l l ® ❑ HIWpY N010/ ❑ EAST MAIN� a STREE - ElWEST ElBAB OI K STREE EAST Cdy D BABCOG STREET a WEST a I OLIVE TR /� EAST /2 I � � STREET � 0 J 1-1 Fl � F WEST ❑ ❑ ❑ a L_J I a LN a a I a ; a r m � __�J ❑ ❑ l�J ❑ WEST L�J ❑ ❑ � ❑ RE ❑ m of - Q®x I ❑ ❑ ❑ ❑ ❑ ❑ WEST Parker ❑ STORY a ❑ TREE __m I _ E.N O T SUNSET a D ❑ a —a ❑ ❑ ❑ � ❑ ❑ ❑ ❑ ^ AST STORY STREET HILLS a WEST III DICKER �0 TREE I `„I Pow 3 �I❑ ❑ ❑ ❑ o ❑ WEST u ❑ ❑ ALDERS!�I � STRE L `1` �P C E M E T A R Y n /¢, ❑ ❑ o o SIE outh ❑ ❑ ❑ x m IjE Pa k � E STREE » /g�� eP IE TO VELLOWSTONE NAT L PARK i — r ❑ ❑ ❑ ❑ ❑ E ❑ ❑❑ �� 1 XARRI GON STREE P I I I ❑ ❑ ❑ tea ❑ �❑ D� � Jc4lQ I I / I ❑❑ �% QP y. 1 ARTHU I i I I I MO A NTAN STATE COLLEGE HAVE TAR OQ Itll GRANT D I I Ir ,I I In [I j I I I LINGO 1 F1 U E LEGEND /I Existing Primary Lines WATER DISTRIBUTION SYSTEM Proposed New Lines (Immediate) BOZEMAN MONTANA --— Proposed New Lines (Future) DRAWN BY 4L SHEET 110, CHECKED ED PROPOSED IMPROVEMENTS aI�-3A APPROVED ^DATE 3 2-56 L P 600 O 600 /god ry, JOHNMHAM.RRISG NE C.E. MO RRISON-MAIERLE,INC. STRUCTURAL ENGINEER JOSEPH A.MAIERLE CONSULTING ENGINEERS RODNEY N.PREATOR ASSOC.M.AM.SOC.C.E. HELENA, MONTANA SANITARY ENGINEER 6 M .W mx z 2 c!� w xw = o W w 1 ' O �W W 0. or N o ag C ` w ex C4 Z O h W vI JI m °3 0o c i c / h / 1 fl i ° a cv Q h� � � V v � m m 3 rn\2 c 1 � � R °1 auo{scfo//a,� of O d L oZ I 66 I � h Z �y V ti L � 90/21d qj ° x V 0 � Z ' o r