SUNRIVER WATER, LLC.

Transcription

1 W A T E R M A N A G E M E N T & C O N S E R V A T I O N P L A N U P D A T E SUNRIVER WATER, LLC. S U N R I V E R, OREGON July, 2013 Prepared for: Sunriver Water, LLC PO Box 3699 Sunriver, OR Attn: Terry Penhollow Prepared by: WHPacific 123 SW Columbia Street Bend, OR Attn: James E. Frost, P.E. 1 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

2 TABLE OF CONTENTS EXECUTIVE SUMMARY INTRODUCTION WATER SUPPLIER DESCRIPTION WATER CONSERVATION ELEMENT WATER CURTAILMENT ELEMENT WATER SUPPLY ELEMENT APPENDIX A SERVICE AREA MAP... APPENDIX B OWRD WATER RIGHTS... APPENDIX C OWRD WATER RIGHTS REPORTING RECORDS... APPENDIX D CONSUMER CONFIDENCE REPORT... APPENDIX E LETTER OF INTEREST TO DRINKING WATER SOURCE PROTECTION FUND... APPENDIX F CURRENT WATER RATES FOR SUNRIVER WATER... 2 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

3 EXECUTIVE SUMMARY Purpose and Goals The intent of this WMCP is to conform to the Oregon Administrative Rules (OAR) 690, division 86 rules. Permit G was issued in Permit G (now under Transfer T-10106) states that within one year from the date the Water Resources Commission adopts rules describing the schedules, standards and procedures for water conservation management plans by water suppliers, Sunriver Utilities Company shall submit a plan which is consistent with said rules. As stated below a WMCP was completed in October of According to OWRD, a WMCP update was to have been submitted by April 30, Sunriver Water LLC received written notice of WMCP update in October of Sunriver Water LLC requested additional time and was granted an extension until November 15, Per OAR , the Division 86 rules provide a process to ensure the efficient use of the State s water resources and facilitate water supply planning consistent with water supplier and Department capabilities. System, Sources and Water Rights Sunriver is a private planned resort community that is approximately 15 miles south of Bend, Oregon. The Sunriver water system currently serves Sunriver Community, Sunriver Business Park, Crosswater, Caldera Springs Community, and some of Vandervert Ranch. These developments utilize the water for commercial, domestic and irrigation needs. At the end of 2007, Sunriver Water, LLC records indicate a total of 4,268 commercial, residential and irrigation connections. Sunriver has no exchange agreements, intergovernmental cooperation agreements, or water supply/delivery contracts. There are three main groundwater wells (#2, #9, and #14) supplying the domestic system, with three ground level reservoirs located above Sunriver for reliable gravity flow to Sunriver. The domestic wells have backup generators. Sunriver, Crosswater and Caldera Springs all have golf courses and common areas that have irrigation water supplied by irrigation wells. These irrigation wells include #4 (not currently in use), #12, GC 9 and GC 17. These wells are not connected to the domestic system. The distribution system was constructed between 1970 and 2007, and includes 16 and 14 tar coated steel, 6 and 12 Asbestos Concrete (AC) and 6 to 12 PVC mains. There is also some newer ductile iron pipe in the system. The large diameter steel lines are generally in good condition. The AC, PVC, and ductile piping are also in good condition. There are some minor improvements that Sunriver Water LLC plans to complete as budget is available, such as a looping connection to improve fire flow and reliability in Tennis Village. The Water System serves 3 main users: Residential single and multi-family dwellings. These are relatively stable uses Commercial Businesses, Institutional larger meters Irrigation Heavy use, seasonal, not connected to sewer system Current Sunriver water rights are as follows: 3 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

4 Table E.S. 1, Water Right Summary Water Right Type of Use, Rate Transfer T-8260 Quasi-Municipal, 3.4cfs Transfer T Quasi-Municipal, 3700gpm Application G Quasi-Municipal, 3.9cfs Certificate Irrigation, 1.02cfs Certificate Irrigation, 0.13cfs Certificate Irrigation and Recreation, 3.694cfs Findings and Recommendations Sunriver currently has an excellent source groundwater aquifer that is stable and of high quality. The Sunriver water system incorporates technology for monitoring and efficiently using water. Wastewater effluent reuse is incorporated into irrigation to lessen the use of groundwater. Sunriver uses many conservation elements in the management of water resources. The main deficiency in the system is that at full projected build out, peak day demand will exceed peak day demand with the largest well out of service. It is recommended that the new Well 15 under Application G be constructed. Mitigation is required for construction of this well, and has proved a challenge to obtain in the Upper Deschutes Zone if Impact. Sources of Supply and Water Management Strategy As stated previously, all Sunriver water is supplied by groundwater wells. Conservation practices are used throughout the system to provide efficient and conservative use of groundwater resources. Conservation Measures and Benchmarks Table E.S. 2. Water Conservation Implementation Schedule Water Conservation Implementation Schedule Measure Full Implementation Date Percent Complete Annual Water Audit Complete 100% Metering Complete 100% Leak Detection Program On-going On-going Public Education On-going On-going Curtailment Program The aquifer that supplies the Sunriver wells has proven to be very stable. There has been very little observable change through all the years of operation. Therefore, triggers for stages of alert are not anticipated to occur due to low water. However, equipment failures can cause a shortage of production that can trigger stages of alert. Sunriver is currently planning on making system improvements to mitigate the risk of curtailment. These improvements will be the addition of the North Reservoir site and mitigating for and then constructing Well 15. The construction of Well 15 will allow the supply to meet peak day demand at buildout with one well out of service. Additional time No additional time is requested at this time for implementing conservation measures. 4 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

5 Figure 1. Overview Map NORTH 5 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

6 1. INTRODUCTION 1.1 System Description Sunriver is a private planned resort community that is approximately 15 miles south of Bend, Oregon. The Sunriver water system currently serves Sunriver Community, Sunriver Business Park, Crosswater, Caldera Springs Community, and some of Vandervert Ranch. These developments utilize the water for commercial, domestic and irrigation needs. At the end of 2007, Sunriver Water, LLC records indicate a total of 4,268 commercial, residential and irrigation connections. Sunriver has an approximate minimum population of 3,000 (1,500 permanent residents and 1,500 resort guests) with a peak population of approximately 20,000 people. See section 5.2 for a more detailed description of the population of Sunriver. There are three main groundwater wells (#2, #9, and #14) supplying the domestic system, with three ground level reservoirs located above Sunriver for reliable gravity flow to Sunriver. The domestic wells have backup generators. Sunriver, Crosswater and Caldera Springs all have golf courses and common areas that have irrigation water supplied by irrigation wells. These irrigation wells include #4 (not currently in use), #12, GC 9 and GC 17. These wells are not connected to the domestic system. The Woodlands Golf Course in north Sunriver is irrigated with treated effluent. The distribution system was constructed between 1970 and 2007, and includes 16 and 14 tar coated steel, 6 to 12 Asbestos Concrete (AC) and 6 to 12 PVC mains. There is also some newer ductile iron pipe in the system. The large diameter steel lines are generally in good condition. The AC, PVC, and ductile piping are also in good condition. There are some minor improvements that Sunriver Water LLC plans to complete as budget is available, such as a looping connection to improve fire flow and reliability in Tennis Village. The Water System serves 3 main users: Residential single and multi-family dwellings. These are relatively stable uses Commercial Businesses, Institutional larger meters Irrigation Heavy use, seasonal, not connected to sewer system Commercial Customer Connections include uses like the Sunriver Lodge, restaurants, Sunriver Business Park, Three Rivers School, and the Village Mall. The Village Mall has several retail stores, restaurants, Goody s, the Grocery Store, and similar uses. There are several retail and commercial businesses, a Laundromat, gas station, convenience store, multi-family dwellings, and restaurants in the Business Park. Major irrigation uses include Crosswater Lake 2 golf course, common areas, and park areas. 1.2 Purpose The intent of this WMCP is to conform to the Oregon Administrative Rules (OAR) 690, division 86 rules. Permit G was issued in Permit G (now under Transfer T-10106) states that within one year from the date the Water Resources Commission adopts rules describing the schedules, standards and procedures for water conservation management plans by water suppliers, Sunriver Utilities Company shall submit a plan which is consistent with said rules. As stated below a WMCP was completed in October of According to OWRD, a WMCP update was to have been submitted by April 30, Sunriver Water LLC received 6 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

7 written notice of WMCP update in October of Sunriver Water LLC requested additional time and was granted an extension until November 15, Previous Water Management and Conservation Plans David Evans and Associates completed a Water Management Plan in February 1996 and a Water Conservation Plan in October 1998 for Sunriver Utilities. Previous Master Plans In 1979, DMJM Hilton completed a Sanitary Sewerage Facilities and Water System Master Plan for Sunriver Properties, Inc. In 1995, David Evans & Associates completed a Water System Master Plan for Sunriver Resort. In 2000, CH2M Hill completed an update of that Master Plan. In October 2007, Sunriver Water, LLC authorized WHPacific to update the Water Master Plan for the Sunriver water system. Given the slow economy, completion of the Water Master Plan was delayed until Our Master Planning projections used 2007 water use records, since occupancy was high and representative of expected water use per equivalent dwelling unit (EDU) at buildout. This WMCP utilizes the use and production data from the 2011 Sunriver Water Master Plan Update extensively. 1.3 Proposed Progress Report and Update Schedule OWRD approves WMCPs for a standard period of 10 years and requires the water supplier to submit a progress report at the five-year mark. We proposed to follow standard OWRD protocol and submit the next WMCP 10 years from OWRD approval date of this plan, with a progress report within five years. 1.4 Previous Benchmarks and Metering No previous benchmarks were included in the previous WMCP. The water system is fully metered at supply and users. Therefore, no additional time is requested to meet previous benchmarks or metering. 1.5 Information Sources This Water Management and Conservation Plan was developed using testing, program, production and use data provided by Sunriver Water, LLC, as well as the Sunriver Water Master Plan Update, November, 2011 by WHPacific. 1.6 Affected Local Governments OAR (5) requires a WMCP to include a list of affected local governments and their comments. The only local government having jurisdiction over Sunriver is Deschutes County. Deschutes County review comments are listed below along with response. Table 1: Local Government Review Comments Deschutes County Comment Sunriver Water, LLC Response No comments or requested changes None 1.7 Document Organization See Table of Contents for organization of document. 7 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

8 Table 2: Summary Checklist Summary Checklist of Required Content Item Water Supplier Description Description of supplier s source(s) Delineation of current service area Assessment of adequacy and reliability of existing supplies Quantification of present and historic use Summary of water rights held Description of customers served and water use summary Identification of interconnections with other suppliers System schematic Quantification of system leakage Water Conservation Element Progress report on previous WMCP Documentation of water use measurement and reporting List of measures already implemented or required under contract Annual water audit Full metering of systems Meter testing and maintenance program Rate structure based on quantity of water metered Leak detection program Public education program Expansion or diversion affecting sensitive, threatened or endangered Leak repair or line replacement program Technical and financial assistance programs Retrofit/replacement of inefficient fixtures Rate structure and billing practices that encourage conservation Reuse, recycling, non-potable opportunities Other measures, if identified by supplier Water Curtailment Element Supply deficiencies and assessment Stages of Alert Triggers for each stage of alert Curtailment actions Water Supply Element Delineation of current and future service areas Population projections for service area Prepare schedule to fully exercise each permit Prepare demand forecast Comparison of projected need and available sources Analysis of alternative sources Quantification of maximum rate and monthly volume Mitigation actions under state and federal laws Other Elements List of affected local governments and their comments Date for submittal of next update Documentation, where additional time is requested to meet previous benchmarks or metering OAR Reference (1) (2) (3) (4) (5) (6) (7) (8) (9) (1) (2) (3) (4a) (4b) (4c) (4d) (4e) (4f) (5) (6a) (6b) (6c) (6d) (6e) (6f) (1) (2) (3) (4) (1) (1) (2) (3) (4) (5) (6) (7) (5) (6) (7) WMCP Section 2.1 App. A App. A 2.4, , P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

9 2. WATER SUPPLIER DESCRIPTION 2.1 Source Description Table 3: Source Summary OWRD Well Number Well Log Drilled Depth DESC 5749 DESC 5744 DESC DESC 6205 DESC 8484 Casing Year Completed 266ft Steel ft Steel ft Steel 2006 Pump 125 HP Vertical Turbine 125 HP Vertical Turbine 150 HP Vertical Turbine Backup Generator Yes Yes Yes diesel Pumping Capacity 1,540gpm 1,575gpm 2,150 gpm 283ft Steel 1969 N/A N/A N/A 307ft Steel HP Vertical Turbine No 1,000 gpm The combined capacity of the wells pumping into the domestic system (#2, 9, 14) is approximately 5265gpm. 2.2 Service Area The Sunriver water system currently serves Sunriver Resort, Sunriver Business Park, Crosswater Resort, Caldera Springs Resort, and some of Vandervert Ranch. See Appendix A for a map of the service area. Sunriver has no exchange agreements, intergovernmental cooperation agreements, or water supply/delivery contracts 2.3 Supply Adequacy and Reliability Assessment Adequacy of Existing Source to Meet Foreseeable Build-Out Demands The combined capacity of wells #2, #9, and #14 that pump into the domestic system is approximately 7.582MGD (5,265gpm). The combined water rights capacity for these three wells is MGD (5,226gpm). The projected peak day use from the domestic system supplied by wells 2, 9, and 14 combined is 6.09 MGD (4229gpm averaged over 24 hours). The Sunriver water supply is capable of exceeding peak day demand. However, Well 2 was installed in the 1940 s, and does not meet modern standards and is at increased risk of having operational problems. If any of the three production wells are out of service, the Resort has a source of approximately 3000 gpm, which is approximately 1,200 gpm short of the buildout projected peak day use of 4229gpm. If any of the three wells are out of production at buildout, Sunriver would need to significantly curtail irrigation and domestic use, and may not be able to meet demand. In this situation, fire flow volume would need to be maintained in the reservoirs, at the expense of domestic and irrigation use. Considering the increased risk of one of the three production wells being out of service for an extended period, we recommend the source be adequate to meet peak day demand with the largest well out of service. This requires an additional well source of approximately 1200 gpm. Application G has a proposed rate of 1750gpm, adequate for this recommendation. 9 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

10 Sunriver is pursuing a feasible mitigation project to allow permit issuance for Application G Quantification of Use Table 4: Customer Base Service Connections Equivalent Dwelling Units 1995 WMP Update 3,374 3,489 4, WMP Update 3,891 4,520 5,886 Current Plan 4,268 5,098 **5,904 **See Lot Inventory Table, Note 4. Projected EDUs at Buildout Table 5: Year 2011 Lot Inventory for Sunriver, OR (in EDUs) Type of Unit Current Unbuilt Buildout Sunriver Residential (5) (7) Multifamily Community (SROA) ( (4) SHARC & North Pools, Ft. Rock, Fire Dept, etc.) *Sunriver Mall (2)(3) *SRLP Sunriver (Lodge, Sage Spa, etc.) (1) *Business Park Commercial (8) BP multifamily (Powder Village) *Commercial units (Other) *07 irrigation Meters, Commercial (Marcello s, Lodge, SROA, School, etc) Crosswater Residential (6) Multifamily (6) Community (Guardhouse, /Pool) SRLP (Clubhouse, Golf Maint.) Vandervert Residential *Commercial 7 7 Caldera Residential Multifamily (Cabins) Community (Fitness, Pavilion) SRLP (Lakehouse) SRLP Future Total 5, ,904 *Current EDU s are based on actual use (1) Data Provided by Sunriver Utilities Company, Spring (2) The Mall has 122 EDUs constructed. Includes Sunriver Village Mall, Marcellos, Bellatazza, SR Realty, Title co, Medical center, Mall 2, Church, South Bend Bistro.Excludes Fremont Crossing 47 and Abbot House 20 (3) use 300 gpd/edu, *365/12=9125 gallons per month per edu (4) SHARC - 36 edus -19 edus south pool leaves 17 new edus beyond the 2000 WMP buildout 5886 (5) Data Provided by SROA 2010 report (6) Data Provided by CW facts/figures 10 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

11 (7) This is 956 EDU from SROA 2010 Report, includes 47 Freemont Crossing,20 Abbott Houses, 18 Aquila. (8) Each business park lot has 3 EDU per lot. Determination of Commercial EDU s The estimated number of EDU s for the project was determined by evaluating water records for Daily use per EDU was assumed to be 300gpd based on industry standards for planning purposes. Additionally, 300gpd/EDU correlates well with observed use rates. Residential EDU numbers were set based on actual constructed/occupancy data. Commercial EDU values were calculated by dividing the metered annual use for each commercial application by [300gpd/EDU x 365days/year], or 109,500gallons per year per EDU. Table 6: Commercial EDU Calculations Total Annual Use (gallons) Number of EDUs based on 300gpd Sunriver Community (SROA) 4,207, Sunriver Mall 6,826, SRLP Sunriver 25,894, Business Park Commercial 11,753, irrigation Meters, Non-residential 23,314, Crosswater Community (Guardhouse, Sales/Pool) 209,273 2 SRLP (Clubhouse, Golf Maint.) 1,782, Vandevert Commercial 768,000 7 Caldera Multifamily (Cabins) 2 Community (Fitness, Pavilion) 1,049,053 9 SRLP (Lakehouse) 17,301 1 In the below calculation, we verify that 300gpd/EDU correlates with existing observed data: Total Annual Water Production from Wells 2, 9, & 14: 565,178,000 gallons/yr Subtract Crosswater Domestic Lake Dump: -42,962,600 gallons/yr Annual use from System (incl. Domestic, Comm., & Irr): 522,215,400 gallons/yr Total current number of EDUs (2007): 4,869 Check Average Daily Flow Per EDU 522,215,400 gallons/yr = 294gpd/EDU 365 days/yr x 4869 EDU Therefore, using an Average Day Design Flow of 300gpd/EDU is reasonable assumption for Sunriver water system. 11 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

12 Demand Data and Calculations (NOTE: Excludes Well 12, Well GC-9, and Well GC-17) EXISTING QUASI-MUNICIPAL (Based on 2007 use records due to high occupancy. Occupancy and use have been down between 2007 and 2011) 2007 Observed Annual Average Day Demand: Total year 2007 production data (wells #2, #9 and #14) 565,178,000gallons/365days = 1.548MGD = 1075gpm 522,215,400gallons/365 days = 1.431MGD = 994gpm (excluding Crosswater Domestic Lake Dump) 2007 Observed Maximum Month Demand: July, 2007 data (wells #2, #9 and #14) 104,079,000gallons per month = 3.357MGD = 2332gpm 82,479,500gallons per month = 2.661MGD = 1848gpm (excluding Crosswater Domestic Lake Dump) 2007 Observed Maximum Month Demand to Annual Average Day Demand Peaking Factor: 3.357MGD / 1.548MGD = MGD / 1.431MGD = 1.86 (excluding Crosswater Domestic Lake Dump) NOTE: Use PF = 2.5 for planning purposes to ensure conservative estimate keeping in line with past observed peaking factor Observed Quasi-Municipal Peak Day Calculation (Maximum Day Demand, MDD): August 4 th, 2007 data 4.467MGD = 3102gpm 3102gpm 269gpm = 2833gpm (excluding Crosswater Domestic Lake Dump) 2007 Observed Maximum Day Demand to Annual Average Day Demand Peaking Factor: 3102gpm / 1075gpm = gpm / 994gpm = 2.85 (excluding Crosswater Domestic Lake Dump) NOTE: Use PF = 3.20 for planning purposes 2007 Quasi-Municipal Peak Hour Calculation (Peak Hour Demand, PHD): Subtract Crosswater Lake Dump #2 and apply peaking factor. 3102gpm 269gpm = 2833gpm X 2P.F. = 5666gpm Add Crosswater Domestic Lake Dump #2 back in. 5666gpm + 269gpm = 5935gpm 2007 Average Day Use per EDU, ADD (excluding Crosswater Lake Dump): Exclude Crosswater Domestic Lake Dump #2 and distribute per EDU. 994gpm/4869EDU = 0.201gpm/EDU = 294gpd NOTE: Use ADD = 300gpd/EDU (0.208gpm/EDU) for planning purposes 2007 Peak Day Use per EDU, MDD (excluding Crosswater Lake Dump): Subtract Crosswater Domestic Lake Dump #2 and distribute per EDU. 3102gpm 269gpm = 2833gpm/4869EDU = 0.582gpm/EDU = 838gpd 12 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

13 NOTE: Use peaking factor of 3.22 and ADD of 300gpd/EDU to obtain MDD = 966gpd/EDU (0.671gpm/EDU) for planning purposes 2007 Peak Hour Use per EDU, PHD (excluding Crosswater Lake Dump): 0.582gpm/EDU X 2P.F. = 1.164gpm/EDU NOTE: Use 0.671gpm/EDU X 2 PF to obtain PHD = 1.342gpm/EDU for planning purposes FULL BUILD OUT Projected Annual Average Day Demand, ADD: 5903EDU X 300gpd/EDU = 1.771MGD = 1230gpm (excluding Crosswater Domestic Lake Dump) 1230gpm + (1075gpm 994gpm) X 1440 = 1.888MGD = 1311gpm (including Crosswater Domestic Lake Dump) Projected Maximum Month Demand: 1.888MGD X 2.5 = 4.72MGD = 3278gpm 1.771MGD X 2.5 = 4.428MGD = 3075gpm (excluding Crosswater Domestic Lake Dump) Projected Peak Day Demand, MDD: 5903EDU X 966gpd/EDU = 5.702MGD = 3960gpm Add Crosswater Lake Dump #2 3960gpm + 269gpm = 4229gpm = 6.09MGD Projected Peak Hour Demand, PHD: 1.342gpm/EDU X 5903 EDU = 7922gpm = MGD Add Crosswater Lake Dump #2 7922gpm + 269gpm = 8191gpm = MGD Uses a peaking factor of 2 on the peak day without Crosswater Domestic Lake Dump, then adds 269 gpm Crosswater Domestic lake Dump back in. 2.5 Summary of Water Rights See Table 7 below for summary of water rights at Sunriver. 1. Used year 2007 data for wells 2, 9, 12, & 14 as it represents highest occupancy and use. Used year 2010 data for wells GC9 & GC17 as it represents highest use within last 5 years when both wells were operational. 2. Average month/day for wells 2, 9, 12, & 14 on calendar year basis. Average month/day for GC9 & GC17 based on irrigation water year (April-October). 13 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

14 Table 7. Sunriver Water Rights Summary Appl. No. Permit No. Certificate No. Transfer No. G 4064 G 5883 G 3810 G (Cancelled by Final Order approving T-8260) (Cancelled by Final Order approving T-8260) T-8260 (change in use, place of use & point of appropriation) T-8260 (change in use, place of use & point of appropriation) T (change in place of use) G G N/A T-9730 (change the point of appropriation of Well 12, & add point of appropriation) G (Expired) (Expired) N/A (Expired) N/A (Expired) N/A G N/A, permit not yet issued N/A N/A G 9478 G 5884 G 9007 G (85484 supercedes 81406, which was modified by final order for T-9729) (85485 supercedes 57066, which was modified by final order for T-9729) T-9729 T-9729 G G T-8841 Source Well 2 Well 2 Well 9 Well 12 Well 14 (aka Well 12A) (Expired) Well 13 (not yet constructed) Well 15 (not yet constructed) Well 12 Well 12 Well GC-9 Well GC-17 (formerly GC8) Type of Use & Priority Date Quasi- Municipal Quasi- Municipal Quasi- Municipal Including Irrigation of acres for 3200gpm & for 500gpm (Expired) Quasi- Municipal Quasi- Municipal Irrigation of acres Irrigation of 19.0acres Irrigation of acres and Recreation (streamflow enhancement) Allowable Rate and Duty 2.3 cfs 1.1 cfs 3700gpm; being: 1700gpm from Well 9 and 2000gpm from Wells 12 and 14, further being described as being 2450gpm for group domestic and 1250gpm for irrigation. The amount of irrigation under this right is limited to a diversion of 1/80cfs / acre and 3.0acre-ft/acre (Expired) 1.34 cfs (601gpm) Annual Volume of acre-ft 3.9 cfs (1750gpm) Annual Volume of acreft 1.02cfs limited to a diversion of 1/80cfs / acre and 3.0 acre-ft/acre 0.13cfs limited to a diversion of 1/80cfs / acre and 3.0 acre-ft/acre A maximum total of 3.694cfs at any one time, being no more than 1.68cfs for irrigation and 2.014cfs for recreation, further described as: 0.855cfs (irrigation, each well) 0.994cfs ( Well GC9 recreation) 1.02cfs (Well GC17 recreation) Observed Maximum Rate 3.4 cfs on July 6, 2011 (Note: Well #2, which includes Permtis G-5609 & G-3810, modified under T-8260) Well 9: 1575gpm Well 12: 1000gpm Well 14: 2150gpm (Expired) N/A, Not Constructed Not Constructed 1000gpm 1000gpm Well GC9: 1.849cfs Well GC17: 1.845cfs Max. Anuual Qty. (calendar year basis) MG Year 2004 (Note: Well #2, includes Permtis G-5609 & G-3810, modified under T-8260) Well 9: MG Year 2002 Well 12: MG Year 2000 Well 14: MG Year 2007 (Expired) N/A, Not Constructed N/A, Not Constructed Well 12: MG Note Well 12 includes T-10106, C-85484, & C Well 12: MG Note Well 12 includes T-10106, C-85484, & C Well GC9: 375 MG Year 2006 Well GC17: 149 MG Year 2004 Average Month (see notes above) 7,027,858 gallons/month (Note this quantity is for Well #2, which includes Permtis G-5609 & G-3810, modified under T-8260) Well 9: 3,086,071 gallons/month Well 12: 3,065,951 gallons/month Well 14: 8,467,266 gallons/month (Expired) N/A, Not Constructed N/A, Not Constructed 3,065,951 gallons/month Note: quantity is total for Well 12, which includes T-10106, C-85484, and C Data Well GC9: 3,562,043 gallons/month Well GC17: 2,538,819 gallons/month Average Day (see notes above) 585,655 gallons/day (Note this quantity is for Well #2, which includes Permtis G-5609 & G-3810, modified under T-8260) Well 9: 257,173gpd Well 12: 255,496 gpd Well 14: 705,605 gpd (Expired) N/A, Not Constructed N/A, Not Constructed 255,496 gpd Note: quantity is total for Well 12, which includes T-10106, C-85484, and C Data Well GC9: 445,255 gpd Well GC17: 423,136 gpd Authorized Completion Date (as set by Final Order approving T- 8260) (as set by Final Order approving T- 8260) (Expired) Final Order issued February 8, 2007, expires 5 years from issuance unless required mitigation is provided Final Order issued May 27, 2010, expires 5 years from issuance unless required mitigation is provided Completed and Certificated Completed and Certificated Completed and Certificated Notes NOTE: The diversion of water under Permit g is limited to no more than 7.22 cfs (3240gpm) by Development Limitaions condition in the Final Order issued on approving Time Extension Mitigation is past expiration date Unable to find feasible mitigation in the Upper and Little Deschutes Zones of Impact. NOTE: Sunriver is currently searching for feasible mitigation in the Upper and/or Little Deschutes Zones of Impact Irrigation of Meadows Golf Course and recreational enhancement of Sunriver T & E Species Affected? None None None (Expired) None None None None None Water Quality Listed? No No No (Expired) No No No No No Critical Ground Water Area? No No No (Expired) No No No No No 14 R I V E R W A T E R LLC\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D-SUNRI V E RWM CP20 12.D O C

15 2.6 Adequacy of Water Rights Supply Generally, at the time of Claim of Beneficial Use for a water right permit, permit amendment, or transfer, the user has to demonstrate the ability to supply and beneficially use without waste the full allotted amount of water. To obtain a final Certificate for the full permitted right, the pumping capacity at the point(s) of appropriation should meet or slightly exceed the permitted water right. The combined pumping capacity for Wells 2, 9, 14, and 12 is 6,265gpm, and the combined water right capacity for these wells is 5,742gpm, so generally, the above condition is met. We recommend mitigation of Application G to allow construction of a 1750 gpm (maximum) Well 15. This allows the supply to meet peak day demand at buildout with one well out of service. The current peak day demand is 3102 gpm, including the Crosswater domestic lake dump to Lake 2. The supply with Well 14 (largest well) out of service is 3115 gpm, so the current peak day can be served with Well 14 out of service. We recommend obtaining water rights and constructing a new well for at least 1,114 gpm. This would allow the supply to meet buildout peak day demand with the largest well out of service. As growth continues, peak day demand will exceed the supply capacity with the largest well out of service, so construction of the new well is recommended in 2015 to 2018 timeframe. This could be pushed off if growth doesn t occur, however, water rights will likely become more difficult to obtain to mitigate construction of this well. A time extension for permit G was issued by OWRD in April of 2005, which provides an extended Completion Date of October 1, A Claim of Beneficial Use should be completed as soon as the resort has achieved full build out, full beneficial use, and full implementation of the required mitigation. The time extension has a 7.22cfs (3240gpm) development limitation cap on it pending approval of this WMCP. Diversion of water beyond 7.22cfs may only be authorized upon the issuance of a final order approving this WMCP. Currently, during peak August days, Sunriver has to pump wells 9, 12, and 14 in combination in excess of 7.22cfs to keep the reservoirs full and maintain system pressure to maintain required 20psi and full emergency storage, both of which are life safety requirements in the system. Initial review comments of this WMCP document by OWRD acknowledge a scrivener s error in the Time Extension Final Order when referring to the permit number in the Development Limitations. The Final order referred to permit G-4435 when it should have referenced Permit G Customers Served and Use Summary The Sunriver water system currently serves Sunriver Community, Sunriver Business Park, Crosswater, Caldera Springs Community, and some of Vandervert Ranch. These developments utilize the water for commercial, domestic and irrigation needs. At the end of 2007, Sunriver Water, LLC records indicate a total of 4,268 commercial, residential and irrigation connections. 15 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

16 Commercial Customer Connections include uses like the Sunriver Lodge, restaurants, Sunriver Business Park, Three Rivers School, and the Village Mall. The Village Mall has several retail stores, restaurants, Goody s, the Grocery Store, and similar uses. There are several retail and commercial businesses, a Laundromat, gas station, convenience store, multi-family dwellings, and restaurants in the Business Park. Major irrigation uses include Crosswater Lake 2 golf course, common areas, and park areas. The Water System serves 3 main user classes, which have the use characteristics listed below: Table 8. Water Use Characteristics by Class Customer Class Areas of Use Season Diurnal Use Pattern Notes Residential Commercial Irrigation Single and multifamily housing Businesses (including restaurants, hotels, grocery stores, water park, retail, recreational businesses, etc.) and Institutional (including police, fire, medical, utilities, etc.) Irrigation of residential common areas, resort landscaping and commercial areas Year round Year round Typically April- October No study has been performed for Sunriver residential diurnal use patterns, but it is expected that they generally follow typical American residential patterns. Inside use (year round) : a) Low during night, approx. 11pm to 5am b) Highest use in morning, approx. 7am to 11am c) High evening use, approx. 6pm to 11pm Outside use (summer): a) High, approx. 5am to 10am b) High, approx. 6pm to 9pm No study has been performed for Sunriver Commercial diurnal use patterns. For restaurants peak time will be meal times, for retail and recreational businesses peak times will be during business hours. Typically during night time hours when residents/guests are not using facilities The breakdown of the number of connections per class are listed below, along with estimated annual use. The numbers include both current numbers as well as those from past plans for Sunriver. Small permanent population using a base demand, with high seasonal and weekend peaks due large influx of visitors Typically larger meters Not connected to sewer system 16 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

17 Table 9. Estimated Accounts and use by customer class (NOTE: Water use and connections excludes Certificate for irrigation Meadows Golf Course with Wells GC9 and GC17) Residential Commercial Residential Area Irrigation Stand-alone Irrigation Crosswater Lake Dumps #2, #12 (Wells 2, 9, 14) Crosswater Lake Dump #12, Obsidian Lake Fill (Well 12) Total Connections EDUs Estimated Annual Use (MG) Connections EDUs Estimated Annual Use (MG) Connections EDUs Estimated Annual Use (MG) Connections EDUs Estimated Annual Use (MG) Connections EDUs Estimated Annual Use (MG) Connections EDUs Estimated Annual Use (MG) Connections EDUs Estimated Total Annual Use Including Lake Dumps (MG) Estimated Annual Use Excluding Crosswater (MG) 1996 Water Management Plan 3281 N/A N/A 44.2 N/A N/A N/A 75 N/A N/A N/A 24.8 N/A N/A N/A N/A Water Conservation Plan N/A N/A N/A N/A 53.1 N/A N/A N/A N/A N/A N/A N/A 24.8 N/A N/A N/A N/A Water Master Plan Update N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Current Plan Full Buildout (1996 Water Mgmt Plan & N/A 1998 Water Conservation Plan) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Full Buildout (2000 WMP) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 5886 N/A N/A Full Buildout (Current Plan) \ S U N R I V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

18 2.8 Interconnections with Other Suppliers The Sunriver water system is not interconnected with any other suppliers. Additionally Sunriver has no exchange agreements, intergovernmental cooperation agreements, or water supply/delivery contracts. Interconnection with other municipal type water purveyors is not feasible due to cost, large geographic separation, lack of water rights that would allow it. See Section 5.6 for further description of analysis of interconnections and other supply alternatives. 2.9 System Schematic See Appendix A Service Area Map, for System Schematic Quantification of System Leakage 2007 represented a high water use year prior to the economic downturn. The total metered production for Wells 2, 9, 12, and 14 were approximately 658,000,000 gallons, while the total metered use was approximately 617,000,000 gallons. Approximately 41,000,000 gallons of water produced is unaccounted for in metered sales, which represents 6.3% of the total produced. Unmetered uses that are part of this unaccounted for water include yearly hydrant flushing for every hydrant in the system (per AWWA recommendations) as well as truck fill from hydrants for construction water, dust abatement, street cleaning and fire suppression was a very active construction year, during which Sunriver provided construction water for the ODOT Highway 97 project, Caldera Springs Resort, and Deschutes County road projects. Fire suppression uses include both wildland and structural firefighting, training, and providing water for fire camps. The remainder can be attributed to leakage and inconsistencies in methodologies. Sunriver has updated their meters to wand read and is considering additional upgrades to fixed base continuous read to help identify and repair leaks on individual meters, and from fire hydrant to fire hydrant. 3. WATER CONSERVATION ELEMENT 3.1 Progress Report on Previous WMCP The 1995 WMCP included a table with the following information: Table 10. Water Conservation Implementation Schedule from 1995 WMCP Water Conservation Implementation Schedule Measure Full Implementation Date Percent Complete Annual Water Audit Complete 100% Metering Complete 100% Leak Detection Program On-going On-going Public Education On-going On-going No incomplete items were included in the table. This table remains valid today as there is an annual water audit, the system is fully metered, there is a continuing leak detection program and there is a continuing public education program. 18 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

19 3.2 Water Use Measurement and Reporting Sunriver Water, LLC meters water from each well and reports well water production annually to OWRD. Sunriver s OWRD assigned Water User Reporting ID is Annual static water level readings are completed for each well and reported annually to OWRD in March of each year. 3.3 List of Measures Already Implemented or Required Under Contract Currently, Sunriver uses a variety of conservation measures to conserve water. These include: Installation of meters for each service. There are approximately 4300 connections, all metered. Use of effluent instead of well water for irrigation of Woodlands Golf Course Sunriver used effluent instead of well water for compaction, dust abatement, and hydroseeding for the nearby US Highway 97 project with DEQ s approval. Sunriver is now installing meters with drive by reading, and potentially advance to fixed base continuous read. These systems detect and notify the water company of leaks, high use, etc. Encourage use of low water use landscaping. For instance, newly developed Caldera Springs has minimal turf in residential yards and uses native type landscaping. The following is an excerpt from the Caldera Springs CC&R s Design Guidelines: Caldera Springs CC&R s, section 7.3 IRRIGATION All newly planted landscape areas within the Building Envelope of each lot must be irrigated. Use of automated water-conserving irrigation products and equipment (e.g. drip systems and smart controllers) is encouraged. Xeriscape design concepts should be used, in conjunction with drought-tolerant plants and minimal irrigation. Areas outside the Building Envelope may be irrigated, although care should be taken to preserve existing native species. If an owner chooses not to install a permanent irrigation system, a written narrative explaining the proposed irrigation approach must be submitted for approval. Prior to submittal to the DRC, all irrigation systems must be approved by Sunriver Water, LLC. One of the full size sets of irrigation plans submitted to the DRC must be stamped by Sunriver Water, LLC, who may have additional requirements prior to submittal to the DRC. 3.4 Annual Water Audit Sunriver monitors and records the amount of water produced and the amount of water sold on a monthly basis. Water produced is monitored at the meters located at the production wells. Water use is monitored at the customer meters and is the basis for monthly water billings. Annually, Sunriver completes a water audit which compares the amount of water produced to the amount of water sold. The difference between the amount of water produced and the amount of water sould is unaccounted for water. As part of its annual water audit, Sunriver Water LLC estimates the amount of unmetered use. Unmetered uses that are part of this unaccounted for water include yearly hydrant flushing for every hydrant in the system (per AWWA recommendations) as well as truck fill from hydrants for construction water, dust abatement, street cleaning and fire suppression. The remainder of unaccounted for water is system leakage or due to events such as broken water mains. 19 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

20 One of the largest sources of unmetered use is the flushing of hydrants. There are approximately 490 fire hydrants on the Sunriver system. Per AWWA recommendations, each of these hydrants is tested and flushed annually. Assuming a nominal flow rate of 1000gpm and a 3-5minute flush, this portion of unaccounted for water consists of approximately 1.5 to 2.5 million gallons annually. Sunriver s annual water audit has historically shown a 5-6% difference between the amount of water produced and the amount of water sold, which is indicative of a newer tighter system with relatively low unmetered uses and little system leakage. 3.5 Full Metering of Systems The Sunriver water system is fully metered for residential and commercial users. The wells are fully metered. There are some unmetered uses that include yearly flushing of each system fire hydrant, truck fills from hydrants for construction water, dust abatement, street washing, and fire suppression. Sunriver Water, LLC is currently considering switching to an automatic meter reading (AMR) system with a fixed base system, see discussion in Section Meter Testing and Maintenance Program Sunriver Water, LLC checks for leaks in the system when abnormally high water use occurs. As was mentioned in the 1998 WMCP, Sunriver will re-read an abnormally high water meter reading within 24 hours. If the repeat reading still indicates an abnormally high water meter reading, the system downstream of the high reading meter is traced to find the reason for the high reading. Sunriver Water, LLC will provide one meter test and one pressure test a year per meter free of charge to each customer if requested. Residential meters are maintained and tested per manufacturer s recommendations. The meters on the production well pumps are maintained per manufacturer recommendations. Sunriver monitors pump rates on monthly basis. If the pump rate of a well shows change, the meter is tested to determine if it is a meter or other equipment problem causing the reading. Sunriver has clean water sources that do not produce water with a lot of particulate. This lack of particulate in the water eliminates wear on meters. 3.7 Rate Structure Based on Quantity Of Water Metered Residential, multi family, commercial, and irrigation water service is billed each month at the following base rates: $10.84 for 5 / 8 or ¾ home or condo service meter $27.11 for 1 service meter $54.21 for 1½ service meter $86.74 for 2 service meter $ for 3 service meter $ for 4 service meter $ for 6 service meter $19.69 for condos with flat rates $1, for Crosswater Golf Course 3 service meter 20 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

21 A commodity charge for water consumption above the base is charged at $1.19 per 1000 gallons for users other than Crosswater Golf course, which is charged at $0.44 per 1000 gallons. There are additional fire protection rates applied to commercial and industrial properties with large service lines. 3.8 Leak Detection and Repair Program The 1998 Water Conservation Plan stated: Sunriver Utilities Company maintains an on-going leak repair program. Since 1981, they have been replacing the original Asbestos Cement water distribution lines with new and more water tight PVC. The majority of the water system is less than 20 years old [as of 1998]. Water distribution systems this new should have minimal leakage. Sunriver utilities losses are calculated by mass balance. During 1995, 94.5% of water pumped was accounted for via metered sales. Unaccounted water pumped includes construction water, forest fire fighting water, and system cleaning. Sunriver Water, LLC continues to maintain an on-going leak repair program, replacing Asbestos Cement watermains with PVC. The losses are still monitored by mass balance. In 2007, 93.7% of water pumped was accounted for via metered sales, which is consistent with past years. Refer back to Section 2.10 for a listing of unmetered uses that account for a significant portion of the unaccounted for water. Sunriver Water, LLC tests every fire hydrant in the system annually, open for five minutes then shut down. 3.9 Public Education Program Sunriver Water, LLC continues to publish articles on water and water conservation measures annually in the consumer confidence report issued to all metered users. This report is required by the State of Oregon. See Appendix D for the current 2011 Annual Drinking Water Report. Conservation issues discussed in the Report include AMR meters, water saving fixtures, water conserving lawn irrigation practices, as well as water system and water quality information Expansion or Diversion Affecting Sensitive, Threatened Or Endangered Currently Sunriver Water, LLC has no plans to expand or initiate diversion of water that will affect any streamflow dependent species listed by any State or Federal agency as sensitive, threatened or endangered Technical and Financial Assistance Programs Sunriver currently has affordable water rates to supply high quality low cost water to its customers. Sunriver Water, LLC water rates are based on allowable structure from the Public Utility Commission (PUC). Sunriver Water, LLC would need to get approval of conservation measures and any resulting increase in rates from the PUC prior to any customer financial assistance program. As listed above in section 3.9, Sunriver provides technical assistance by annually publishing articles on water conservation measures such as AMR meters, water saving fixtures, water conserving lawn irrigation practices. Please refer to section 3.12 below regarding evaluation of feasibility of water supplier financed program Retrofit/Replacement of Inefficient Fixtures 21 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

22 Sunriver is a relatively young community, approximately 45 years old. The first construction occurred in the late 1960 s. Most of Sunriver s construction occurred in the 1980 s and 1990 s. Since Sunriver has a high percentage of vacation rental units, most of the older rental units have been remodeled and updated to be competitive and attract paying clientele. These remodels will likely have replaced a majority of the old fixtures since the early 1990 s. Therefore there are no really old fixtures with high uses. As stated in the previous section, Sunriver Water, LLC water rates are based on allowable structure from the Public Utility Commission (PUC). Sunriver Water, LLC would need to get approval of program measures and any increase in rates from the PUC prior to any water supplier financed retrofitting/replacement program of existing plumbing fixtures. Based on initial review of this report, OWRD asked Sunriver to evaluate the feasibility of a water supplier financed retrofitting/replacement program for plumbing fixtures. Sunriver Water, LLC will evaluate the feasibility of such a program by the end of the year Rate Structure and Billing Practices that Encourage Conservation Domestic water use is billed monthly as a base rate with a uniform rate surcharge for each 1000gpm used. According to the 1995 WMCP, Sunriver Utilities applied to the Public Utility Commission (PUC) to change to an increasing block rate structure to encourage greater conservation, but was denied in Sunriver Water, LLC has not applied to the PUC again to change to an increasing block rate structure. However, Sunriver water rates are in-line with other local Central Oregon water utility rates Reuse, Recycling, Non-Potable Opportunities Effluent from the Sunriver wastewater treatment plant is reused for irrigation on the Woodlands Golf Course and for crops on the east side of the railroad tracks and south of Cottonwood Road. Effluent re-use for irrigation of the Woodlands Golf Course greatly reduces the use of groundwater. A new meter has been added at Woodlands Golf Course reuse irrigation pump station to monitor and better manage effluent use on the course. In 2012, Sunriver added two new center pivot sprinklers to irrigate the crops that incorporate the latest technology for even distribution and low water use. These new pivots maximize beneficial use of effluent for crop production. On the recently constructed Oregon Department of Transportation US Highway 97 project, Sunriver effluent was used for compaction, dust abatement, and hydroseeding instead of well water, with Oregon DEQ s approval Other Measures, if Identified by Supplier Over the past two water rate tariffs, Sunriver Water, LLC has adjusted water rates so that all users are paying the same rate. Prior to this implementation, irrigation users were paying half the amount as other users. Additionally, new technologies are being installed throughout the Sunriver water system to allow the utility to provide water conserving measures and more closely monitor use, production, and leakage. Sunriver Water, LLC is currently considering switching to an automatic meter reading (AMR) system with a fixed base system, see discussion in Section 2.10 Fire hydrant to fire hydrant leakage monitoring Electronic monitoring of Crosswater Lake 12 and Obsidian Lake levels from Well 12 to auto shut off well pump based on lake level 3.16 Conservation Measures Meeting Demands 22 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

23 See Section 5.6 for discussion of potential of conservation measures to meet future water demands. 4. WATER CURTAILMENT ELEMENT 4.1 Supply Deficiencies and Assessment The 1998 WMCP states: Sunriver Utilities Company has provided water to its customers during years of drought conditions. Drawdown in their wells have remained consistent with those of non-drought years. Therefore, it can be concluded that the aquifers supplying the Sunriver Utilites Company s wells are not affected by drought conditions. This statement holds true to today. The water table in the existing wells is very stable. As stated previously, current peak day demands can be met with one well out of service. As growth continues, peak day demand will exceed the supply capacity with the largest well out of service, so construction of the new well is recommended between 2015 and This could be pushed off if growth doesn t occur, however, water rights will likely become more difficult to obtain to mitigate construction of this well. 4.2 Stages of Alert There are three stages of alert: 1. Mild Stage 2. Moderate Stage 3. Critical Stage 4.3 Triggers For Each Stage of Alert The aquifer that supplies the Sunriver wells has proven to be very stable. There has been very little observable change through all the years of operation. Therefore, triggers for stages of alert are not anticipated to occur due to low water. However, equipment failures can cause a shortage of production that can trigger stages of alert. Sunriver is currently planning on making system improvements to mitigate the risk of curtailment. These improvements will be the addition of the North Reservoir site and mitigating for and then constructing Well 15. The construction of Well 15 will allow the supply to meet peak day demand at buildout with one well out of service. Supply Triggers The aquifer that supplies the Sunriver wells has proven to be very stable. There has been very little observable change through all the years of operation. Therefore, triggers for stages of alert are not anticipated to occur due to low water. That said, Permit G (now under T-10106) stipulates that if a total static water level decline of 25 feet or more from reference level occurs in Wells 9, 12, or 14, that Sunriver Water shall discontinue use of or reduce use of the wells until static water level recovers above 25 feet. Therefore we propose the following supply triggers: 1. Mild Stage: Static water level in Well 9, 12, or 14 drops 11 feet or more below reference level. 2. Moderate Stage: Static water level in Well 9, 12, or 14 drops 18 feet or more below reference level. 3. Critical Stage: Static water level in Well 9, 12, or 14 drops 25 feet or more below reference level. 23 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

24 Demand and Capacity Triggers Equipment failures could cause a shortage of production that can trigger stages of alert. Additionally, the most recent Water Masterplan study identified the need for new storage at the North Reservoir site to provide Sunriver is currently planning on the addition of the North Reservoir site and mitigating for and then constructing Well 15. The construction of Well 15 will allow the supply to meet peak day demand at buildout with one well out of service, and the north reservoir(s) will provide recommended equalization and emergency/fire storage, provide additional redundancy so Sunriver Water does not rely on only one reservoir system and single connection transmission main, and boost pressure in the north end during peak use periods. The recommended improvements will greatly reduce the chance of requiring curtailment due to demand and capacity issues. To be prepared for potential water shortages, we propose the following demand and capacity triggers: 1. Mild Stage: One or more wells are down for repairs and/or reservoirs drop below the 20 feet above tank floor(s) level. Reservoir overflow is 30 feet above tank floor(s), system design anticipates equalization storage of approximately 11 feet, and if tank(s) drop to within 1 foot of total equalization storage (10 foot drop), curtailment will be triggered. 2. Moderate Stage: One or more wells are down for repairs and reservoirs drop below the 18 feet above tank floor(s) level. 3. Critical Stage: One or more wells are down for repairs and reservoirs drop below the 12 feet above tank floor(s) level. 12 feet above tank floor(s) represents 1 day of average day demand. 4.4 Curtailment Actions Table 11. Water Curtailment Actions Alert Stage Mild Stage Moderate Stage Critical Stage Curtailment Action Notice to the public of potential supply shortage and Mild Stage Alert Request for voluntary non-essential reduction in use. Outside watering restricted to limited time of day. Property owners and guests will be requested to limit car washing, shower times and other ordinary uses. Notify the public of potential supply shortage and Moderate Stage Alert Impose restrictions on landscape irrigation and non-essential uses such as washing exterior hardscapes with water. All property owners will be required to comply with restricted outdoor watering schedules. No watering during daytime hours, restricted to even/odd day watering schedule based on address number. Length of irrigation time sets on the golf course are to be reduced 20%. Notify the public of supply shortage and Critical Stage Alert Impose restrictions on usage to minimum health and safety allocations Property owners are to be prohibited from all outside watering Filling of pools and hot tubs prohibited 24 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

25 5. WATER SUPPLY ELEMENT 5.1 Delineation of Current and Future Service Areas See attached service area map in APPENDIX A SERVICE AREA MAP. 5.2 Population Projections for Service Area US Census data for 2010 states that there are 1,393 permanent residents. The Sunriver Chamber of Commerce currently estimates that figure to be approximately 1,500 permanent residents. A majority of the population in Sunriver consists of non-permanent residents. The 2010 US Census data states there are a total of 4,568 total housing units in Sunriver. Of that total, 725 are occupied year round. 3,348 of the remaining 3,843 housing units are listed as for seasonal, recreational, or occasional use. Sunriver estimates that there are approximately 1,500 guests at the minimum low use period. The Sunriver Chamber of Commerce estimates that the population of Sunriver can be approximately 20,000 people during the peak summer tourist season. Using the current estimate of 5,098 EDUs and 20,000 peak day population, there would be an average of 3.92 people per EDU during peak day occupancy. This is a reasonable assumption based on occupancy patterns in Sunriver rental units which typically involve fairly large family groups. Development of Sunriver has and will continue to occur over an extended period of time, relative to market demand. Sunriver has developed gradually over the last 40 years, and is still not at build out. The demand fluctuates, not only from year to year, but in the type of units or inventory as well. According to US Census data, Sunriver experienced 73.26% growth from 2006 to This equates to 14.7% per year over that 4-year time span. Note that this is for permanent year-round residents, and may have limited applicability when examining Sunriver s overall water use as full time residents make up a relatively small proportion of the population. Another potential source for predicting growth at Sunriver is The Deschutes County Coordinated Population Forecast, , which predicts 11.5% growth per 5-year period through the year 2025 in non-urban County lands. The DCC Population Forecast does not have data specific to Sunriver. The 11.5% over 5-years equates to 2.2% a year. With existing occupancy of 5098 EDUs and full build out of 5904 EDUs, 2.2% annual growth would predict full build out in 6.7 years using simple compound interest formula. This value does not correlate to what is expected at Sunriver. Based on typical Central Oregon resort community development patterns, actual growth would slow down near full build out, and actual date of full-build out hard to predict since it varies greatly with economic and real estate market conditions, as well as lot availability. To best estimate the projected population growth that slows as it nears full build out, the annual growth rate was halved every five years and assumed full build out will occur over the next 20 years. Actual population growth will vary year to year depending on economic conditions and inventory of units. The population projections are shown below in Figure 2. See Table 13 for population and water use projections. 25 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

26 Figure 2. Projected Population Growth 5.3 Schedule to Fully Exercise each Permit The actual date of full build out is unknown. Based on historical development patterns, it is reasonable to estimate that the resort will be very close to full build out in 20 years, which is the year 2033 (see the above section 5.2 regarding population growth estimate). Based on this estimate of complete use over the next 20 years, we propose to use the current extension date of October 1, 2034 as the predicted date of full build out and full benefical use for Permit G (T-10106). As has been stated previously, Sunriver Resort s development schedule will occur gradually over time and its rate of growth will depend on economic Table 12. Water Right Schedule Water Right Type of Use, Rate Date to Complete Transfer T-8260 Quasi-Municipal, 3.4cfs Claim of Beneficial Use submitted July 2011, currently under OWRD review Transfer T Quasi-Municipal, 3700gpm Complete application of water by October 1, 2034 Application G Quasi-Municipal, 1.34cfs Expired, permit will not be issued Application G Quasi-Municipal, 3.9cfs First increment of mitigation to be in place by May 27, 2015 Permit to be issued by OWRD Demonstrate full mitigation and full beneficial use by May 27, 2020 (or file for time extension) Submit Claim of Beneficial Use by May 27, 2020 (or later if time extension pursued and obtained) Certificate Irrigation, 1.02cfs Certificated Certificate Irrigation, 0.13cfs Certificated Certificate Irrigation and Recreation, Certificated 3.694cfs 5.4 Demand Forecast As discussed in previous sections, growth of Sunriver will vary over time depending on economic conditions and available real estate inventory. Population growth was discussed in detail in section 5.2. Table 13 below shows a best estimate of future growth over the next 20 years. 26 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

27 Table 13. Projected Population Growth and Water Use Year Projected Annual EDU Growth EDU Forecast Assuming Full Occupancy at End of Time Extension Projected Permanent Population* Projected Peak Day Population Average Annual Population (2.3 People per EDU) Estimated Annual Use Excluding Crosswater and Wells GC9 & GC17 (MG) % % % % *Current 2013 permanent population based on US Census Bureau data. There is high uncertainty in projecting future proportion of permanent population to transient population. Sunriver Water, LLC will need to monitor development and water use to determine adequacy of extended completion date for Permit G Sunriver Water, LLC will submit WMCP progress reports and WMCP Updates as required by OWRD. These reports and updates will include current water use and occupancy information. If the 2034 deadline is approaching within a few years and the resort is not near full buildout, an additional time extension may need to be applied for, as is common for quasi-municipal rights serving large areas. A time extension for permit G was issued by OWRD in April of 2005, which provides an extended Completion Date of October 1, A Claim of Beneficial Use should be completed as soon as the resort has achieved full build out, full beneficial use, and full implementation of the required mitigation. The time extension has a 7.22cfs (3240gpm) development limitation cap on it pending approval of this WMCP. Diversion of water beyond 7.22cfs may only be authorized upon the issuance of a final order approving this WMCP. Currently, during peak days in July and August, Sunriver has to pump wells 9, 12, and 14 in combination in excess of 7.22cfs to keep the reservoirs full and maintain system pressure to maintain required 20psi and full emergency storage, both of which are life safety requirements in the system. For example, the well capacities of Wells 9, 12, and 14, respectively, are 1,575gpm, 1,000gpm, and 2,150gpm, for a combined capacity of 4,725gpm. When Wells 9 and 14 pump concurrently, they have the capacity to pump into the system at 3,725gpm, which matches the fully permitted amount allowed under permit G To ensure water rights are not exceeded when Wells 9, 12, and 14 are pumping concurrently, Well 12 is covered by Certificates and At this time, Sunriver Water, LLC requests OWRD approval of removing the 7.22cfs cap and allow pumping of the fully permitted 3,700gpm to meet current and future peak day water demands and life safety requirements. As requested by OWRD, we are summarizing the current, 10-year, and 20-year projected water demands in Table 14 below. OWRD requested the instantaneous rate of water. Since there are various ways to interpret what the instantaneous rate of water from a quasi-municipal system, we have provided several methodologies. The first is the pump rate of the wells into the bulges on the system (either reservoirs, lakes, or the tributary of the Deschutes known as Sunriver. This pump rate is based on the operating point of the well pump and won t change much through time unless the pumps are replaced. The next rate given is the projected peak hour demand. This is the expected rate of withdrawl from the reservoirs and mainly of use for reservoir and pipe sizing. 27 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

28 Use Domestic System (incl. CW Lake Dump #2) CW Dump #12 & Obsidian Lake Dump Meadows Golf Course The third quantification of instantaneous rate is the projected maximum day demand. This is the projected maximum one day use volume expected for the system spread throughout a 24-hour period. Table 14a. Projected 20-Year Water Use Pump Rate Source (gpm) 1540 Well 2 gpm 1575 Well 9 gpm Well gpm Well 12 Well GC gpm 830 gpm 828 Current 10-Year 20-Year Peak **Max. Peak **Max. Peak Hour Day Pump Hour Day Pump Hour Demand Demand Rate Demand Demand Rate Demand (gpm) (gpm) (gpm) (gpm) (gpm) (gpm) (gpm) gpm N/A, see claim of beneficial use N/A, see claim of beneficial use 3102 gpm 1000 gpm 1659 gpm gpm 1575 gpm 2150 gpm 1000 gpm 830 gpm gpm N/A, see claim of beneficia l use N/A, see claim of beneficia l use 4114 gpm 1000 gpm 1659 gpm gpm 1575 gpm 2150 gpm 1000 gpm 830 gpm 8191 gpm N/A, see claim of beneficial use N/A, see claim of beneficial use Well GC17 gpm gpm 828 gpm **Maximum Day Demand (MDD) is maximum system demand in a 24-hour period (gallons per day) distributed across the 24-hour period, i.e. divide max. day volume by 1440 minutes/day. **Max. Day Demand (gpm) 4229 gpm 1000 gpm 1659 gpm Use Table 14b. Maximum Monthly Water Production Domestic System (incl. CW Lake Dump #2) CW Dump #12 & Obsidian Lake Dump Meadows Course Golf Source Well 2 Well 9 Well 14 Current Maximum Observed Monthly Volume (MG) 56.34MG (June 2007) 31.45MG (Aug. 2007) 78.66MG (Aug. 2007) Combined MG (July 2007) Well MG (August 2007) Well GC9 Well GC MG (Aug. 2006) 35.13MG (Aug. 2003) 88.70MG (Aug. 2006) 10-Year Projected Maximum Monthly Volume Combined MG (estimated) Combined 24.06MG (estimated) MG irrigation (based on 3.0ac-ft/ac) 20-Year Projected Maximum Monthly Volume Combined MG (estimated) Combined 24.42MG (estimated) MG irrigation (based on 3.0ac-ft/ac) 5.5 Comparison of Projected Need and Available Sources As stated previously, we recommend mitigation of Application G to allow construction of a 1750 gpm (maximum) Well 15. This allows the supply to meet peak day demand at buildout with one well out of service. The current peak day demand is 3102 gpm, including the Crosswater domestic lake dump to Lake 2. The supply with Well 14 (largest well) out of service is 3115 gpm, so the current peak day can be served with Well 14 out of service. We recommend obtaining water rights and constructing a new well for at least 1,114 gpm. This would allow the supply to meet buildout peak day demand with the largest well out of service. Projected peak day demand from the domestic system at buildout is projected to be 4229gpm. As growth continues, peak day demand will exceed the supply capacity with the largest well out of 28 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

29 service, so construction of the new well is recommended in 2015 to 2018 timeframe. This could be pushed off if growth doesn t occur, however, water rights will likely become more difficult to obtain to mitigate construction of this well. 5.6 Analysis of Alternative Sources There are no feasible alternative production sources of water supply available for Sunriver besides groundwater wells. The nearest municipality is the City of Bend, which is 15 miles away and approximately 600 feet lower in elevation than Sunriver. Any pipeline connecting City of Bend water system to Sunriver would likely follow Highway 97 and would go by Lava Butte where it would be approximately 1,000 feet higher in elevation than the City of Bend. To overcome the elevation gain and large headloss associated with a 15 mile pipeline, a large complex system of pump stations would be required. Assuming a construction cost of $90 to $120 per lineal foot for a large transmission main, the cost for the mile long pipeline alone would be $5 to $10 million dollars. As Sunriver is 15 miles away from the City of Bend, it is not within the area covered by City of Bend water rights, nor does the City of Bend have excess water rights or production capability to serve Sunriver. It is worth noting that within and around the City of Bend there are smaller water companies such as Roates and Avion. Since they serve residents of the City and are smaller private water companies, the above impediments to the City of Bend providing service to Sunriver apply to these private entities as well. A pipeline and pumping system would not be a feasible or cost effective method of providing water to Sunriver. Surface water rights are not available in the Upper or Little Deschutes Zone of Impact, and the cost of constructing a water treatement plant to treat surface water to drinking water standards is cost prohibitive. Using the high quality, highly productive groundwater aquifer located at Sunriver is the only feasible option for supplying water to Sunriver. In addition to other sources of water production, conservation of water to provide for Sunriver s water supply must be assessed. Sunriver currently has state of the art irrigation systems for the golf courses which are tied to climate data to ensure efficient beneficial use of the water. Woodlands Golf Course uses treated wastewater effluent instead of water from the domestic system. All water services are metered. Sunriver used effluent instead of well water for compaction, dust abatement, and hydroseeding for the nearby US Highway 97 project with DEQ s approval. Sunriver encourages use of low water use landscaping. Most of the residential units have very minimal turf in residential yards and use native type landscaping with minimal irrigation requirements, and residents are encouraged through means such as CC&R s and education to utilize efficient irrigation systems such as drip and systems tied to climate. As stated previously, to stay competitive in the vacation rental market, most of the vacation rental units are remodeled periodically, so there is a very low instance of inefficient plumbing fixtures. Since the resort already has the above conservation measures in place (further described in Section 3), very little of Sunriver s current or future supply could be obtained through future conservation measures. Sunriver will continue to utilize water in an efficient manner and future development will incorporate the latest technologies and methods to most efficiently use water. Currently Sunriver is pursuing mitigation for Well 15 as required by Application G If a suitable mitigation option is found and put in place, Sunriver can construct the well, which would allow the supply to meet buildout peak day demand with the largest well out of service. Provided that mitigation can be found for Well 15 as required by Application G-16874, and the application is permitted, no new water rights beyond what Sunriver already holds or has pending are anticipated. If suitable mitigation cannot be found, then another water right may be needed. 29 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

30 In 2012, Sunriver had to drop plans for Well 13, under Application G in February 2012 due unavailability of mitigation in the Little Deschutes Zone of Impact. Sunriver Water, LLC aggressively pursued mitigation, but none was available and the water right expired and the permit will not be issued. 5.7 Quantification of Maximum Rate and Monthly Volume See Section 2.4 above for maximum rate and monthly volume. 5.8 Mitigation Actions Under State and Federal Laws The Deschutes Basin Mitigation Program requires mitigation for all new ground water permits in The Deschutes Basin starting in the year The mitigation program is based on the findings of the USGS Water Resources Investigations Report The mitigation program was developed to maintain flows for Scenic Waterways and senior water rights, restore flows in the Middle Deschutes River, and accommodate growth by allowing new groundwater development. Sunriver applied for two rights (Application G and Application G-16874) that are required to satisfy the mitigation requirements of OAR in the Little and Upper Deschutes Zones of Impact. All other Sunriver water rights pre-date the Deschutes Mitigation Program. The final order for Application G required that mitigation in the Little Deschutes Zone of Impact be in place by February of No suitable mitigation program was found prior to the expiration date, and OWRD issued a notice of cancellation in February of The final order for Application G required that mitigation in the Upper Deschutes Zone of Impact be in place by May of Currently there is an incremental irrigation plan in place, and Sunriver has been working with OWRD on scheduling and implementation. Permanent mitigation credits and/or projects are difficult to find in the Upper Deschutes Zone of Impact. However, Sunriver is diligently working towards obtaining those credits. The current plan is as follows, provided suitable permanent mitigation can be obtained: By May 27, 2015, purchase 2.1 AF of temporary mitigation credits, and begin the Incremental Mitigation Program OWRD would then issue the Permit Need to show full beneficial use within 5 years of permit issuance, unless an extension is received, so Well 15 needs to be drilled, pump set and full beneficial use by May 27, The current plan, contingent on finding suitable mitigation, is to drill the well in summer 2017, have the pump set and operational by spring 2018, beneficially use the full permitted rate of 3.9 CFS before Recommend using water from spring 2018 thru fall Pump this amount into the domestic system and be able to demonstrate quasimunicipal beneficial use. The DRAFT permit allows five years to fully develop the 716 AF of mitigation, and pump the full 1750 gpm into the domestic system for quasi-municipal use. If growth at Sunriver is slower than anticipated, thereby reducing the amount of water needed, may apply for time extension. Remain compliant with permit conditions. By the Certification date (C-date) of 2020 have full mitigation in place and be able to demonstrate full beneficial use. (later if an extension is applied for and granted to fully develop mitigation and water use) 30 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

31 Complete the Claim of Beneficial Use in 2021 (later if extension is applied for and issued). OWRD to issue Certificate 31 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

32 APPENDIX A SERVICE AREA MAP 32 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

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34 APPENDIX B OWRD WATER RIGHTS 33 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

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53 Oregon Water Resources Department Water Rights Division Water Rights Application Number G Final Order Appeal Rights This is a final order in other than contested case. This order is subject to judicial review under ORS Any petition for judicial review must be filed within the 60 day time period specified by ORS (2). Pursuant to ORS and OAR you may either petition for judicial review or petition the Director for reconsideration of this order. A petition for reconsideration may be granted or denied by the Director, and if no action is taken within 60 days following the date the petition was filed, the petition shall be deemed denied. This statement of judicial review rights does not create a right to judicial review of this order, if judicial review is otherwise precluded by law. Where no changes have been made to a Proposed Final Order on a water right application and no protests have been filed during the protest period, the final order is not subject to judicial review. Application History On November 10, 2004, Terry Penhollow, submitted an application to the Department for a water use permit on behalf of Sunriver Water, LLC. On September 19, 2006, the Department issued a Proposed Final Order concluding that, with the mitigation proposed by the applicant, water is available for the proposed use and that the proposed use would ensure the preservation of the public welfare, safety and health. The protest period closed November 3, 2006, and no protest was received. On July 29, 2005, House Bill 3494, enacted by the 73 rd Oregon Legislative Assembly, was signed by the Governor. Under Section 2 of this 2005 Act, Oregon Administrative Rules (OAR) through , certified effective by the Secretary of State on September 27, 2002, satisfy the requirements relating to mitigation under ORS to , to , and ti As required by OAR , the applicant must submit proposed mitigation that meets the requirements of OAR (2)-(5). Pursuant to OAR , a permit shall not be issued until the applicant provides documentary evidence that mitigation water, in an amount satisfying the mitigation obligation, is legally protected instream.

54 The applicant submitted a mitigation proposal to provide acrefeet (AF) of mitigation water within the Little Deschutes Zone of Impact pursuant to OAR (4). The applicant has proposed to provide the mitigation on an incremental basis (OAR ) as outlined below: Increment Year Est. Annual Volume Mitigation Obligation Mitigation Source AF 50.0 AF Purchase credits or develop a mitigation project AF AF Purchase credits or develop a mitigation project AF 34.0 AF Purchase credits or develop a mitigation project Order A permit consistent with the attached draft permit shall be issued only upon submission of documentary evidence and/or completion of a mitigation project demonstrating that 50.0 AF of mitigation water (credits), or an alternate amount of mitigation in conjunction with a modified incremental mitigation development plan, meeting the requirements of OAR (2)-(5), within the Little Deschutes Zone of Impact, have been obtained and satisfy the first stage of incremental development. In addition, payment of outstanding permit recording fees in the amount of $ are required. Said fees are due and payable prior to the issuance of a permit, even if all mitigation obligations have been satisfied.

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56 STATE OF OREGON COUNTY OF DESCHUTES DRAFT PERMIT TO APPROPRIATE THE PUBLIC WATERS THIS DRAFT PERMIT IS HEREBY ISSUED TO SUNRIVER WATER, LLC PO BOX 3699 SUNRIVER, OR The specific limits and conditions of the use are listed below. APPLICATION FILE NUMBER: G SOURCE OF WATER: A WELL IN THE LITTLE DESCHUTES RIVER BASIN PURPOSE OR USE: QUASI-MUNICIPAL USE MAXIMUM RATE/VOLUME: 1.34 CUBIC FEET PER SECOND, LIMITED TO A MAXIMUM ANNUAL VOLUME OF ACRE FEET (AF), FURTHER LIMITED BY THE CORRESPONDING MITIGATION PROVIDED UNDER THE INCREMENTAL MITIGATION DEVELOPMENT PLAN PERIOD OF USE: YEAR ROUND DATE OF PRIORITY: NOVEMBER 10, 2004 WELL LOCATION: NW ¼ SE ¼, SECTION 8, T20S, R11E, W.M.; 2819 FEET SOUTH & 1471 FEET WEST FROM NE CORNER OF SECTION 8 THE PLACE OF USE IS LOCATED AS FOLLOWS: WITHIN THE SERVICE BOUNDARY OF THE SUNRIVER WATER, LLC. WATER DISTRICT; LOCATED WITHIN: NW ¼ NE ¼ SW ¼ NE ¼ NE ¼ NW ¼ SE ¼ NW ¼ NE ¼ SW ¼ SE ¼ SW ¼ NW ¼ SE ¼ SW ¼ SE ¼ SECTION 8 Application G Water Resources Department PERMIT DRAFT

57 Page 3 NW ¼ NE ¼ NE ¼ NW ¼ SE ¼ NW ¼ SECTION 17 TOWNSHIP 20 SOUTH, RANGE 11 EAST, W.M. Measurement, recording and reporting conditions: A. Before water use may begin under this permit, the permittee shall install a totalizing flow meter at each diversion point. The totalizing flow meter(s) must be installed and maintained in good working order consistent with those standards identified in OAR (1) through (3). The permittee shall keep a complete record of the amount of water used each month and shall submit a report which includes the recorded water use measurements to the Department annually or more frequently as may be required by the Director. Further, the Director may require the permittee to report general water use information, including the place and nature of use of water under the permit. B. The permittee shall allow the watermaster access to the meter(s); provided however, where any meter is located within a private structure, the watermaster shall request access upon reasonable notice. Use of water under authority of this permit may be regulated if analysis of data available after the permit is issued discloses that the appropriation will measurably reduce the surface water flows necessary to maintain the free-flowing character of a scenic waterway in quantities necessary for recreation, fish and wildlife in effect as of the priority date of the right or as those quantities may be subsequently reduced. However, the use of ground water allowed under the terms of this permit will not be subject to regulation for Scenic Waterway flows so long as mitigation is maintained. GROUND WATER MITIGATION CONDITIONS Mitigation Obligation: acre-feet of mitigation water in the Little Deschutes Zone of Impact (anywhere in the Little Deschutes River Basin above the mouth of the Little Deschutes River) Mitigation Source: Mitigation Credits or a Mitigation Project, in accordance with the incremental development plan on file Application G Water Resources Department PERMIT DRAFT

58 Page 4 with the Department, meeting the requirements of OAR Chapter 690, Division 505 (Deschutes Ground Water Mitigation Rules). The first stage of incremental development shall be met with 50.0 AF of mitigation, being mitigation credits from a chartered mitigation bank, or mitigation water that meets the requirements of OAR Chapter 690, Division (2)-(5), within the Little Deschutes Zone of Impact. Mitigation water must be legally protected instream for instream use within the Little Deschutes Zone of Impact and committed for life of the permit and subsequent certificate(s). Regulation of the use and/or cancellation of the permit, or subsequent certificate(s) will occur if the required mitigation is not maintained. If mitigation is from a secondary right for stored water from a storage project not owned or operated by the permittee, the use of water under this right is subject to the terms and conditions of a valid contract, or a satisfactory replacement, with the owner/operator of the storage project, a copy of which must be on file in the records of the Water Resources Department prior to use of water. The permittee shall provide additional mitigation if the Department determines that average annual consumptive use of the subject appropriation has increased beyond the originally mitigated amount. The permittee shall provide mitigation prior to each stage of development under the permit, as described in the incremental development mitigation plan on file with the Department, and in accordance with the standards of the Deschutes Ground Water Mitigation Rules, OAR Chapter 690, Division 505. The permittee shall not increase the rate or amount of water diverted, as described in the incremental development mitigation plan, prior to increasing the corresponding mitigation. The permittee shall seek and receive Department approval prior to changing the incremental mitigation development plan and related mitigation obligation for each stage of permit development. The permittee shall report to the Department the progress of implementing the incremental mitigation development plan and related Application G Water Resources Department PERMIT DRAFT

59 Page 5 mitigation no later than April 1 of each year. This annual notification is not necessary if the permittee has completed development and submitted a Claim of Beneficial Use to the Department. The permittee shall submit an updated Water Management and Conservation Plan pursuant to OAR Chapter 690, Division 86 as outlined with the existing Water Management and Conservation Plan on file with the Water Resources Department. The Director may approve an extension of this time line to complete the required Water Management and Conservation Plan. The time line for submittal of a plan under this permit does not alter the time lines for submittal of a plan under any other order of the Department. Failure to comply with these mitigation conditions shall result in the Department regulating the ground water permit, or subsequent certificate(s), proposing to deny any permit extension application for the ground water permit, and proposing to cancel the ground water permit, or subsequent certificate(s). STANDARD CONDITIONS If substantial interference with a senior water right occurs due to withdrawal of water from any well listed on this permit, then use of water from the well(s) shall be discontinued or reduced and/or the schedule of withdrawal shall be regulated until or unless the Department approves or implements an alternative administrative action to mitigate the interference. The Department encourages junior and senior appropriators to jointly develop plans to mitigate interferences. The wells shall be constructed in accordance with the General Standards for the Construction and Maintenance of Water Wells in Oregon. The works shall be equipped with a usable access port, and may also include an air line and pressure gauge adequate to determine water level elevation in the well at all times. The use shall conform to such reasonable rotation system as may be ordered by the proper state officer. Prior to receiving a certificate of water right, the permit holder shall submit the results of a pump test meeting the department's standards, to the Water Resources Department. The Director may require water level or pump test results every ten years thereafter. Failure to comply with any of the provisions of this permit may result in action including, but not limited to, restrictions on the use, civil penalties, or cancellation of the permit. Application G Water Resources Department PERMIT DRAFT

60 Page 6 This permit is for the beneficial use of water without waste. The water user is advised that new regulations may require the use of best practical technologies or conservation practices to achieve this end. By law, the land use associated with this water use must be in compliance with statewide land-use goals and any local acknowledged land-use plan. The use of water shall be limited when it interferes with any prior surface or ground water rights. Complete application of the water to the use shall be made on or before October 1, If the water is not completely applied before this date, and the permittee wishes to continue development under the permit, the permittee must submit an application for extension of time, which may be approved based upon the merit of the application. Within one year after complete application of water to the proposed use, the permittee shall submit a claim of beneficial use, which includes a map and report, prepared by a Certified Water Rights Examiner (CWRE). Issued, 2007 Phillip C. Ward, Director Water Resources Department Application G Water Resources Department PERMIT DRAFT Basin 5 Volume 1 DESCHUTES R MISC District 11 huffmaam

61 Mailing List for FO Copies Application #G Mailing List Print Date:January 16, 2007 Original mailed to: SUNRIVER WATER, LLC., TERRY PENHOLLOW, VICE PRESIDENT, PO BOX 3699, SUNRIVER, OR Copies sent to: 1. WRD - File # G Water Availability: Ken Stahr 3. WRD - Laura Snedaker 4. DRC- Bruce Alyward Copies Mailed By: (SUPPORT STAFF) on: (DATE) FO and Map Copies sent to: 5. WRD - Watermaster # 11 Copies sent to Other Interested Persons (CWRE, Agent, Well Driller, Commenter, etc.) Tom Walker, W&H Pacific, 920 SW Emkay STE C100, Bend, OR CASEWORKER : huffmaam

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77 APPENDIX C OWRD WATER RIGHTS REPORTING RECORDS 34 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

78 Page 1 of 1 11/15/2012 Water Use Reporting Entry Logout SUNRIVER WATER LLC TODD PENHOLLOW PO BOX 3699 SUNRIVER, OR Now reporting for water year: The deadline for this is 4/30/2013. Records per Page: 5 Report ID Facility Associated Water Rights & Description Select WELL #9 Permit: G * WELL 9; 19S-11E-29-NE NE; 1200 FEET SOUTH AND 70 FEET WEST FROM NE CORNER, SECTION 29 Select WELL #12 (DESC 8484) Permit: G * WELL 12; 20S-11E-8-NW NW; 215 FEET SOUTH AND 830 FEET EAST FROM NW CORNER, SECTION 8 Select WELL GC #8 Permit: G * WELL GC 17; 20S-11E-5-NW NW; 320 FEET SOUTH & 400 FEET EAST FROM NE CORNER, SECTION 6 Select WELL GC #9 Permit: G * WELL GC 9; 20S-11E-6-NE SE; 2060 FEET NORTH & 230 FEET WEST FROM SE CORNER, SECTION 6 Select DESC n/a Report ID: Add data for water year Water Year Unit Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2011 G G G G G G G G G G M

79 Page 1 of 1 11/15/2012 Water Use Reporting Entry Logout SUNRIVER WATER LLC TODD PENHOLLOW PO BOX 3699 SUNRIVER, OR Now reporting for water year: The deadline for this is 4/30/2013. Records per Page: 5 Report ID Facility Associated Water Rights & Description Select WELL #9 Permit: G * WELL 9; 19S-11E-29-NE NE; 1200 FEET SOUTH AND 70 FEET WEST FROM NE CORNER, SECTION 29 Select WELL #12 (DESC 8484) Permit: G * WELL 12; 20S-11E-8-NW NW; 215 FEET SOUTH AND 830 FEET EAST FROM NW CORNER, SECTION 8 Select WELL GC #8 Permit: G * WELL GC 17; 20S-11E-5-NW NW; 320 FEET SOUTH & 400 FEET EAST FROM NE CORNER, SECTION 6 Select WELL GC #9 Permit: G * WELL GC 9; 20S-11E-6-NE SE; 2060 FEET NORTH & 230 FEET WEST FROM SE CORNER, SECTION 6 Select DESC n/a Report ID: Add data for water year Water Year Unit Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2011 G G G G G G G G G G G M

80 Page 1 of 1 11/15/2012 Water Use Reporting Entry Logout SUNRIVER WATER LLC TODD PENHOLLOW PO BOX 3699 SUNRIVER, OR Now reporting for water year: The deadline for this is 4/30/2013. Records per Page: 5 Report ID Facility Associated Water Rights & Description Select WELL #9 Permit: G * WELL 9; 19S-11E-29-NE NE; 1200 FEET SOUTH AND 70 FEET WEST FROM NE CORNER, SECTION 29 Select WELL #12 (DESC 8484) Permit: G * WELL 12; 20S-11E-8-NW NW; 215 FEET SOUTH AND 830 FEET EAST FROM NW CORNER, SECTION 8 Select WELL GC #8 Permit: G * WELL GC 17; 20S-11E-5-NW NW; 320 FEET SOUTH & 400 FEET EAST FROM NE CORNER, SECTION 6 Select WELL GC #9 Permit: G * WELL GC 9; 20S-11E-6-NE SE; 2060 FEET NORTH & 230 FEET WEST FROM SE CORNER, SECTION 6 Select DESC n/a Report ID: Add data for water year Water Year Unit Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2011 G G G G G G G G G G M

81 Page 1 of 1 11/15/2012 Water Use Reporting Entry Logout SUNRIVER WATER LLC TODD PENHOLLOW PO BOX 3699 SUNRIVER, OR Now reporting for water year: The deadline for this is 4/30/2013. Records per Page: 5 Report ID Facility Associated Water Rights & Description Select WELL #9 Permit: G * WELL 9; 19S-11E-29-NE NE; 1200 FEET SOUTH AND 70 FEET WEST FROM NE CORNER, SECTION 29 Select WELL #12 (DESC 8484) Permit: G * WELL 12; 20S-11E-8-NW NW; 215 FEET SOUTH AND 830 FEET EAST FROM NW CORNER, SECTION 8 Select WELL GC #8 Permit: G * WELL GC 17; 20S-11E-5-NW NW; 320 FEET SOUTH & 400 FEET EAST FROM NE CORNER, SECTION 6 Select WELL GC #9 Permit: G * WELL GC 9; 20S-11E-6-NE SE; 2060 FEET NORTH & 230 FEET WEST FROM SE CORNER, SECTION 6 Select DESC n/a Report ID: Add data for water year Water Year Unit Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2011 G G G G

82 Page 1 of 1 11/15/2012 Water Use Reporting Entry Logout SUNRIVER WATER LLC TODD PENHOLLOW PO BOX 3699 SUNRIVER, OR Now reporting for water year: The deadline for this is 4/30/2013. Records per Page: 5 Report ID Facility Associated Water Rights & Description Select WELL #9 Permit: G * WELL 9; 19S-11E-29-NE NE; 1200 FEET SOUTH AND 70 FEET WEST FROM NE CORNER, SECTION 29 Select WELL #12 (DESC 8484) Permit: G * WELL 12; 20S-11E-8-NW NW; 215 FEET SOUTH AND 830 FEET EAST FROM NW CORNER, SECTION 8 Select WELL GC #8 Permit: G * WELL GC 17; 20S-11E-5-NW NW; 320 FEET SOUTH & 400 FEET EAST FROM NE CORNER, SECTION 6 Select WELL GC #9 Permit: G * WELL GC 9; 20S-11E-6-NE SE; 2060 FEET NORTH & 230 FEET WEST FROM SE CORNER, SECTION 6 Select DESC n/a Report ID: Add data for water year Water Year Unit Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2011 G G G G G G G G G G M

83 APPENDIX D CONSUMER CONFIDENCE REPORT 35 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

84 Annual Drinking Water Quality Report SUNRIVER WATER LLC 2011 REPORT Prepared May 2012 PWS Sunriver Water LLC (SRW) is again very pleased to provide you with the 2011 Annual Water Quality Report. SRW supplies water to over 4,338 residential, commercial and irrigation customers in the Sunriver, Crosswater, Vandevert and Caldera Springs communities. Each and every customer is important to us and we want to keep you informed about the excellent water and services delivered to you over the past year. Our goal is and always has been, to provide to you a safe and dependable supply of drinking water. This report is meant to inform you, our customer, of what is in your drinking water and the origin of the water source. The state requires us to monitor for specific contaminants only once per every three to nine years because the concentrations of these contaminants do not change frequently. Some of our data, though representative, could be several years old. If you have any questions about this report or concerning your water utility, please contact Terry Penhollow at (541) We want our valued customers to be informed about Sunriver s water. If you want to learn more about our water system, please call or stop by the office between 7:00 AM and 3:30 PM Monday through Friday and we will set up a time to answer your questions. The source of our water is from deep wells which all draw from the Upper Deschutes Basin Aquifer. The drinking water, which we provide to you, is of excellent quality, as well as safe and meets federal and state requirements. We are fortunate to have such an exceptional water supply. This is an additional benefit to living within the Sunriver, Crosswater, Vandevert and Caldera Springs communities. There is no filtration or treatment to SRW water. The only chlorine added to the water system is when the reservoirs are cleaned, mainlines added, and where there is a repair or maintenance to the water distribution system. Source Water Assessment: A preliminary Source Water Assessment was developed in We are working with the Oregon Drinking Water Program to complete the assessment. Sunriver Water LLC routinely monitors for constituents in your drinking water according to Federal and State laws. The table shows the results of our monitoring for the period of January 1 st to December 31 st, All drinking water, including bottled drinking water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that the water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency s Safe Drinking Water Hotline at Water Definitions: In this table you will find many terms and abbreviations you might not be familiar with. To help you better understand these terms we've provided the following definitions: Non-Detects (ND) - laboratory analysis indicates that the constituent is not present. Parts per million (ppm) or Milligrams per liter (mg/l) - one part per million corresponds to one minute in two years. Parts per billion (ppb) or Micrograms per liter - one part per billion corresponds to one minute in 2,000 years. Picocuries per liter (pci/l) - Picocuries per liter is a measure of the radioactivity in water. Million Fibers per Liter (MFL) - million fibers per liter is a measure of the presence of asbestos fibers that are longer than 10 micrometers.

85 Action Level (AL) - the concentration of a contaminant, which, if exceeded, triggers treatment or other requirements. Maximum Contaminant Level - (mandatory language) The Maximum Allowed (MCL) is the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology. Maximum Contaminant Level Goal - (mandatory language) The Goal (MCLG) is the level of a contaminant in drinking water below, which there is no known or expected risk to health. MCLGs allow for a margin of safety. Microbiological Contaminants: Total Coliform Bacteria tests for Sunriver Water LLC are collected four times per month at four different sample points each month. Umpqua Research Company tests these samples for SRW and reports directly to the Oregon State Health Division. No total coliform bacteria or e-coli bacteria were found in any of the samples collected. Drinking Water Quality Primary Standards: The tables below indicate how your drinking water compares to the standards set by the EPA for We are allowed to test for some substances less than once per year. The table below indicates the most recent year tested. Out of the more than 140 substances tested, only those detected are reported below. Inorganic Contaminants: Year Contaminant Units MCLG MCL Results Violation Likely Source 2009 Fluoride Ppm No naturally occurring 2009 Sodium Ppm NA NA 11.5 No naturally occurring Lead and Copper: Year Contaminant Units MCLG MCL Results Violation Likely Source 2011 Copper Ppm No Household Plumbing 2011 Lead Ppm No Household Plumbing More about Lead and Copper: It is advisable to let water run a short while before drinking if the faucet has not been used for more than six hours. Since hot water promotes leaching of lead, avoid using hot tap water for cooking or drinking. These are particularly important precautions to take when mixing formula for infants or children. Infants and young children are typically more vulnerable to lead in drinking water than the general population. It is possible that lead levels at your home may be higher than at other homes in the community as a result of materials used in your home s plumbing. If you are concerned about elevated lead levels in your home s water, you may wish to have your water tested. In the mean time, flush your tap for 30 seconds to 2 minutes before using tap water. This would flush away any concentrations from your piping or fixtures. Additional information is available from the Environmental Protection Agency s Safe Drinking Water Hotline ( ). We re proud of our drinking water and we are proud of the communities of Sunriver, Crosswater, Vandevert and Caldera Springs for the support and assistance we receive. We constantly monitor for various constituents in the water supply to meet all regulatory requirements. We have learned through our monitoring and testing that some constituents have been detected. The EPA has determined that your water IS SAFE at these levels. MCL s are set at very stringent levels. To understand the possible health effects described for many regulated constituents, a person would have to drink 2 liters of water every day at the MCL level for a lifetime to have a one-in-a-million chance of having the described health effect. Special Health Concerns; Some people may be more vulnerable to contaminants in drinking water than the general population. Immunocompromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of infection by cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline ( ). Water Conservation: Water conservation should always be a consideration within any community. As required by the Oregon Water Resources Department, SRW continually monitors its wells for static water levels in the aquifer. The data is compiled and submitted to Oregon Water Resources Department on an annual basis. Over the last twenty years since SRW has been monitoring the static water level at its wells, there has been no significant drawdown of the aquifer. The recovery time to the normal static water level is very good when the well shuts down. SRW strongly supports an ongoing water conservation program. In 2011 we pumped more than 549,050,000 gallons of water. As we go into the drier summer season, be careful not to

86 waste water. Some helpful water conservation measures may include using water saving fixtures in your household plumbing, such as low volume showerheads, faucets, and toilets. Other areas would be in outside uses where during cool wet weather you shutoff your irrigation system or turn back the run time to meet lawn and shrub needs without over watering, sweeping sidewalks and driveways instead of hosing them down. There are several of your local landscapers that now provide new sprinklers that use 30% less water. They can also set up your existing system to be more efficient. With everyone s cooperation in conserving water, SRW will be able to meet all water customer needs now and in the future. Sunriver Water LLC continues to install new AMR meters for remote reading. All areas of Crosswater, Caldera and Vandevert are already installed. Meadow Village, Forest Park, Business Park, Skypark, Fairway Island, and most commercial and condo sites are also complete. We are currently working in Mountain Village East and other home sites within Sunriver. This will allow the utility to read the AMR meters year around. The change out will take several years to complete. Sunriver Water LLC is also working on preliminary designs for a new reservoir and transmission main to boost pressure in the north end of Sunriver during peak use periods. This will also provide additional emergency and fire storage, and provide additional redundancy. Sunriver Water LLC s current system has only one reservoir system and a single connection transmission main to the distribution system. The new reservoir would add a second system and connection to the distribution system. All of us at Sunriver Water LLC and Sunriver Environmental LLC would like to thank you for your continued support. We ask that you continue to help us protect our water sources, which are the heart of our community, our way of life and our children s future. One of the measures Sunriver Water LLC takes to ensure the safety of your drinking water is to implement a cross connection control program to prevent used water from returning back into the water supply. Connections between the drinking water piping and any plumbing fixture, tank, receptor, equipment or device through which it may be possible for used water or other substances to enter back into the water supply are called cross connections. Some examples of cross connections are: lawn irrigation systems, hot tubs, automatic pool fillers, ponds filled with a hose and hydronic heating systems. These types of cross connections require mechanical units to be installed to prevent water from flowing backwards. New hot tub installations require a backflow assembly be installed at the meter. The condition when water reverses its flow from its normal intended direction is called Backflow. While most of us think of our water as always being under pressure and therefore flowing in only one direction, a drop in pressure caused by a line break, a repair project, or fire hydrant use can cause a reversal of flow that could pull or siphon unwanted material into the water system. Sunriver Water LLC s goal is to provide each customer with safe drinking water. Therefore a program to identify and protect against any possible cross connection is essential. To assist in establishing our goal to provide safe drinking water, we are conducting surveys and inspections within the system. As a water customer, you are responsible to maintain your own plumbing system according to the Oregon State Plumbing Code and other state regulations. Plumbing permits help maintain the safety of our drinking water from these cross connections thus protecting our health and minimizing your liability in the event of a backflow. It is the plumbing permit process that assists in making sure these installations are done in a safe, correct manner resulting in protection for you, your family and your investment. We look forward to providing you with excellent water in the future. Sunriver Water LLC thanks you for assisting us with this program. If you have questions regarding Annual Drinking Water Quality Report, or cross connection control please feel free to call us (541) Sincerely, Terry D. Penhollow Director of Utility Services Sunriver Water LLC 6/1/2012

87 APPENDIX E LETTER OF INTEREST TO DRINKING WATER SOURCE PROTECTION FUND 36 P :\SUNRI V E R W A T E R L L C\ \ D E S I G N\ R E P O R T S\ F O U R T H S U B M I T T A L L A N D - S U N R I V E RW M CP D O C

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