40 Year Projected Water Usage Report KANAB CITY . HTS July 2014 Table of Contents Table of Contents i Part I. Introduction 1 Part II. Existing Water Usage 1 Part Projected Population 2 Part IV. Existing Water Rights 4 Part V. Conclusion 4 Part I. Introduction Kanab City currently serves approximately 2,000 culinary water connections. Due to recent changes in the law a 40 year plan must be prepared to show that existing water rights currently being held in reserve by the City will be required for future growth and development. The existing culinary water system is being fed from 23 springs and 18 Wells that are rotated during the winter and summer based on demand. Part 11. Existing Water Usage The estimated equivalent residential units for the community were estimated as follows: TABLE 1 - KANAB CITY EQUIVALENT RESIDENTIAL UNITS (2013) Land Use Units No1 Demand2 Multiplier ERUS Total Residential Dwelling 1,760 800 1 L760 Multiunit Dwelling 94 800 1 94 High School Person 245 15 0.0188 5 Middle School Person 118 15 0.0188 2 Elementary School Person 455 15 0.0188 9 Hotel Room 912 150 0.1875 171 Service Station Pump 67 250 0.3125 21 Restaurant Seat 1296 35 0.0438 57 RV Park Vehicle 94 100 0.125 12 Church Seat 1,733 5 0.0063 11 Nursing Home Bed 15 200 0.5 8 Patient 100 10 0.0125 1 Doctor?s Office 1 Staff 15 35 0.0438 A Page I 1 ENGINEERING Lan its 1 2 . US NO emand Multiplier Total Patient 30 10 0.0125 0'38 Hospital Beds 10 200 0.5 5 Staff 70 35 0.0438 3 Fire Station 0 volunteer) Person 25 5 0.0063 Commercial Building 91 1,600 2 182 Industrial Building 1 3,200 4 4 Total Equivalent Residential Connections 2,349.4 1 Number of units are estimates 2 Assumed Peak Day Demand per Unit in gallons for the purpose of calculating ERUs only Using the total flow for the year ending in December 2013, the average year/y demand per ERU is 224,669 gallons (527,748,280 gallons/2,349 ERUs). The peak day demand for indoor use is estimated to be 219 gpd/ERU. This was derived by taking the total usage during the months of December of 15,934,114 gallons and dividing it by 31 days and 2,349 Assuming the peak day demand for outdoor and indoor water use is equal to the average daily flow of 2,551,413 gallons (76,542,400/30 days) in June of 2013, the peak day demand for indoor and outdoor use is 1,086 gpd/ERU. The peak day demand for outdoor use is 867 gpd/ERU (1,086 219 gpd). The results of the daily demands are summarized below. Peak day demand for indoor use: 219 gpd/ERU 3r Peak day demand for outdoor use: 867 gpd/ERU Total peak day demand: 1,086 gpd/ERU Total average yearly demand: 224,669 gallons/ERU (0.690 acre feet/ERU) Part 111. Projected Population The growth rate in Kanab has varied greatly in the last 20 years depending on when the projections are taken but for the purposes of this report are estimated at 3.25%. Based on a 3.25% growth rate the projected p0pu ation ERU's in 40 a 885336. '2 years would be 8,443. With this number of the peak flow requirement would be 6,367 gpm. An estimate of the Kanab City population at build-out (when all vacant land within the city limits has been developed) has also been prepared. The calculations along with the estimated build-out population for Kanab City are summarized in following table taken from the Capital Facilities Plan. TABLE 2 KANAB CITY ESTIMATED BUILDOUT POPULATION Unks Unks at Bqu?OUt Type Of Use1 Acres Acre/ Build- POpulatiOn3 out West of Kanab Creek Very low density2 535 0.4 214 505 Verylowidensky 1,209 1 1,209 2,853 Low density2 124 2 248 585 Low density 384 3.5 1,344 3,172 Medium density2 557 1.5 836 1,972 Total 2,809 3,851 9,087 East of Kanab Creek Very low density 2,242 1 2,242 5,291 Low density2 514 2 1028 2,426 Low density2 130 2.64 343.2 810 Low density 1,771 3.5 6198.5 14,628 MedandensKy 45 15 675 159 MedMn1densky 133 7 931 2,197 Hannedlnut 422 15 6330 14,939 Total 5,257 17,140 40,451 COmbined Total 8,066 20,991 49,538 1 Table includes only zones where dwellings are allowed. 2 Modified to show actual densities where development has occurred. 3 Persons per household assumed to be 2.36 based on culinary water account data supplied by the city of Kanab Based on 2.36 persons per household the buildout will be approximately 20,990. The water rights required to provide for this p0pulation would be a peak flow of approximately 15,830 and a total diversion of 14,473 acre feet. Page I 3 Part IV. Existing Water Rights The following table is a summary of existing water rights owned by Kanab City with their current status. TABLE 3 - KANAB CITY EXISTING WATER RIGHTS Flow Water Right Priority Diversion Points Flow (cfs) (gpm) Acre-feet Status 85?28 1956 Wells 0.448 201 324.56 Certificated 85?39 1956 Well (Highway 89 Well) 0.885 397 641.15 Certificated 85-55 1963 Well #11 1 449 724.46 Certificated 85-59 1964 Wells 1.81 812 1,311.28 Certificated Springs: Trough, Big, Cave 1&2, Cold, Iron 1&2, Little, Robinson, Slab, Slide, 85-112 1864 South, Twin, Weeping, 0.5 362.23 Willow, Boiling, Head 1&2, Diligence Spring 1&2 224 Claim . . . Diligence 85-703 1896 City Chicken Spring 0.033 15 23.91 Claim 85?736 1962 Wells 0.93 417 673.75 Certificated 85-772 1977 Wells 3.48 1562 2,521.13 Certificated 85-946 1975 Wells 3.02 1355 2,187.88 Application 85-956 1962 Well #14 1.5 673 1,086.69 Certificated Totals 13.606 6,106.79 9,857.04 Part V. Conclusion With their current water rights, Kanab City can deliver a peak clay demand 6,106 with all of their rights being used. This is close to the projected peak clay demand of 6,367 based on a 3.25% growth rate over the next 40 years. It is anticipated that to service a build?out population of 49,538 residents with a peak clay demand of 15,830 and an annual flow of 14,473 acre feet that Kanab City will need to continue actively acquiring water rights to serve the future needs of its citizens. This includes both surface and subsurface rights. a LP ENGINEERING Page i 4 Cave Lakes Spring Area Cave Lakes Well No.5 Chicken Canyon Well No.4 City Spring (Chicken Sp) Hinckley Well No.13 Mace Well No.2 School Well No.11 Three Lakes We No.12 Well No. 15 Well No.1 Well No.14 West Fork Well #1 West Fork Well #2 West Fork Well #3 West Fork Well #4 West Fork Well #5 Totals Totals Jun?13 Dec-13 2013 10.7 11.8 134.6 0 0 0 0 0 16.9 0 0 0 55.6 0 313.6 0 9.5 68.1 0 19.7 100.8 50.2 0 95.3 0 7.9 31.5 0 0 0 45.1 0 293.8 0.9 0 191.2 6.4 0 65.9 5.1 0 39.4 60.9 0 268.5 0 0 0 234.9 48.9 1619.6 Acre-feet 76,542,39990 15,934,11390 527,748,27960 Gallons