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09/11/2014 - Packet m Completeness Review for Boards, Commissions and Committee Records CITY OF TIGARD Intergovertnental Water Board Name of Board, Commission or Committee 09/11/2014 Date of Meeting I have verified these documents are a complete copy of the official record. Judy Lawhead Print Name Signature 12/23/2015 Date Intergovernmental Water Board Agenda SERVING TIGARD,KING CITY,DURHAM AND TIGARD WATER DISTRICT MEETING DATE: Thursday, September 11, 2014, 5:30 p.m. MEETING LOCATION: Tigard Public Works Building 8777 SW Burnham Street Tigard, OR 97223 1. Call to Order, Roll Call and Introductions 2. Approval of Minutes —July 9,2014 Action: Motion to approve the July 9, 2014, minutes. 3. Public Comments Call for comments from the public. 5. Water Supply Update—John Goodrich No action required. 6. Briefing on the River Terrace Water Master Plan—Susan Shanks 7. Informational Items ■ Update on water billing cycles—John Goodrich 8. Non-Agenda Items Call for non-agenda items from the board. 9. Next Meeting October 8, 2014, at 5:30 p.m. 8777 SW Burnham Street,Tigard, Oregon 10. Adjournment Action: Motion for adjournment. Executive Session The Intergovernmental Water Board may go into Executive Session. If an Executive Session is called to order, the appropriate ORS citation will be announced identifying the applicable statute. All discussions are confidential and those present may disclose nothing from the Session. Representatives of the news media are allowed to attend Executive Sessions, as provided by ORS 192.660(4), but must not disclose any information discussed. No Executive Session may be held for the purpose of taking any final action or making any final decision. Executive Sessions are closed to the public. INTERGOVERNMENTAL WATER BOARD AGENDA— September 11, 2014 City of Tigard 1 13125 SW Hall Blvd.,Tigard,OR 97223 1 503-718-2591 1 www.tigard-or.gov I Page 1 of 2 The City of Tigard tries to make all reasonable modifications to ensure that people with disabilities have an equal opportunity to participate in all city meetings. Upon request,the city will do its best to arrange for the following services/equipment: ■ Assistive listening devices. ■ Qualified sign language interpreters. ■ Qualified bilingual interpreters. Because the city may need to hire outside service providers or arrange for specialized equipment,those requesting services/equipment should do so as far in advance as possible,but no later than 3 city work days prior to the meeting. To make a request, call 503-718-2591 (voice) or 503-684-2772 (TDD-Telecommunications Devices for the Deao. INTERGOVERNMENTAL WATER BOARD AGENDA— September 11, 2014 City of Tigard 1 13125 SW Hall Blvd.,Tigard,OR 97223 1 503-718-2591 1 www.tigard-or.gov ; Page 2 of 2 Intergovernmental Water Board JXVB) Minutes SERVING TIGARD,KING CITY,DURHAM AND TIGARD WATER DISTRICT MEETING DATE: Thursday, September 11, 2014, 5:30 p.m. MEETING LOCATION: Tigard Public Works Building 8777 SW Burnham Street Tigard, OR 97223 Members Present: Gretchen Buchner Representing the City of Tigard Tom Fergusson Alternate representing the Tigard Water District (TWD) Keith Jehnke Representing the City of Durham Jodie Inman Member-At-Large Members Absent: Ken Henschel Representing the Tigard Water District (TWD) City of Tigard Staff Present: John Goodrich Interim Assistant Public Works Director Susan Shanks Senior Planner Judy Lawhead IWB Recorder 1. Call to Order, Roll Call and Introductions Commissioner Buchner called the meeting to order at 5:37 p.m. 2. Approval of Minutes —July 9, 2014 Commissioner Inman moved to approve the July 9,2014,minutes. Commissioner Jehnke seconded the motion. The motion passed by a majority vote of the commissioners present,with Commissioners Buchner,Jehnke, and Inman voting yes. Commissioner Fergusson abstained. 3. Public Comments There were no comments from the public. 5. Water Supply Update Mr. Goodrich reported: • Average water use for the month of August was 9.1 million gallons per day (mgd). This was about 500,000 gallons per day less than was used during August, 2013. • Approximately 98 million gallons (mg) of water was pumped from aquifer storage and recovery (ASR) no. 1 as native groundwater for the year. 62 mg was recovered from ASR no.2,with approximately 79 mg left in storage, or about 37 days at 1,500 gallons per minute withdrawal rate. • As September and October water usage drops, staff will begin the injection cycle for ASR no. 2 sometime in December. 6. Briefing on the River Terrace Water Master Plan Ms. Shanks gave a basic overview of the planning process for the water system improvements, specifically regarding the infrastructure and the funding strategy. In addition to the Water System Master Plan Addendum that was included in the agenda packet,Ms. Shanks provided the board with two documents pertaining to the funding strategy. These documents are on file in the IWB record. Some highlights of the overview include: • The master plan addendum has been adopted by the Tigard City Council. • Work continues on both the funding strategy that will identify needed near-term improvement projects and the community plan. The plan is an umbrella document that will update the city's comprehensive plan,guiding infrastructure improvements and development in the area. • Proposed water system improvements include extending existing water lines, new transmission mains, a new pump station, and a new reservoir. More information on the planning process is available at www.RiverTerraceTigard.com. 7. Informational Items Mr. Goodrich reported on his research regarding inconsistent water billing cycles. The cycles spanned from 27 to 36 days. He added that the Utility Billing Office is aware of the situation and is looking at several options to determine if adjustments can be made to the current billing cycles. 8. Non-Agenda Items Commissioner Buehner reported on the work of the water partnership's Oversight Committee. Some of the project updates include: • The new treatment plant is currently 67 days behind schedule. • The River Intake Pump Station (RIPS) in-water work is basically finished; the move to the new intake is anticipated to take place in January. • The horizontal directional drilling (HDD) pipeline work continues to make progress in upsizing the tunnel until it's large enough for the pipe to be pulled through. "Pullback" of the pipe is expected to take place in October. 9. Next Meeting October 8, 2014, at 5:30 p.m. Public Works Auditorium, 8777 SW Burnham Street,Tigard, Oregon 10. Adjournment At 7:10 p.m. Commissioner Inman moved to adjourn the meeting. Commissioner Fergusson seconded the motion. The meeting adjourned by unanimous vote of the commissioners present, with Commissioners Buehner,Jehnke, Fergusson, and Inman A s. x Z� LZ'- ,%fueh r, hatr Jt y' Law ead, I" Recorder Date: 110Date: /l7- Z Agenda Item No.: moo 0 Klyff 0 • � 1.9 .1 rrac u n i L ',' 1) T I GARB Water System M' aster Plan Addendum January 2014 so R *,_. rte# y� .♦�. .9� �4 -�T�. L � I.w-Y.. fib. .. .F'� "S �i it ._ F :. y.;a � .ai1. �,• '. �„�+rw;Q1 _ �r�c-,�+� �r,I�.Y;" r L y ., __��: F t =� , ,. �' s• .t •`` 9,4 �, ��..�� .,r.Y'r �� 4'F� .air s w_ '� q ,�9aR•�� - -f a y 1 •"r �'4i mak:■,,.��' -. 1100 f a •f, ✓rte' 1� �rj.r _��_ r..�r.r. .,�,.,r r -'� '- ...; �_� ++e. moi.•...Mi■M+O-JLAW ►� t �J- r �• � - wMar. ..�•�� ,'t j J.- ,�' i ., r �' `fir ACKNOWLEDGEMENTS We would like to thank the many citizens, staff, and community groups who provided extensive input into the development of this Water Plan Addendum. Special thanks are due to the members of the River Terrace Technical Advisory Committee and Stakeholder Working Group. CITY STAFF Susan Shanks, Project Manager and Senior Planner Tom McGuire, Assistant Community Development Director Rob Murchison, Senior Project Engineer Marissa Grass, Associate Planner Kenny Asher, Community Development Director Michael Stone, City Engineer Brian Rager, interim Public Works Director John Goodrich, interim Assistant Public Works Director Prepared by Murray, Smith & Associates, Inc. January 2014 Plt �C , Brian M. Ginter, P.E. s27. Heidi A. Springer, P.E_ O�iON RENEWS 5-30—15 SA 13-1484 River Terrace Community Plan January 2014 City of Tigard TABLE OF CONTENTS SUMMARY OF RECOMMENDATIONS ............................... I L INTRODUCTION........................................................ 2 II. BASIS OF PLANNING AND WATER DEMAND PROJECTIONS .......................... 3 III. SYSTEM ANALYSIS AND RIVER TERRACE WATER SYSTEM CAPACITY .................................. 4 IV. CAPITAL IMPROVEMENT PLAN............................ 8 13-1484 River Terrace Community Plan January 2014 City of Tigard SUMMARY OF RECOMMENDATIONS The focus of this Water System Master Plan Addendum is on providing water service to the River Terrace Community, which is a new area that the City of Tigard's 2010 Water System Master Plan addressed only for overall water supply capacity needs. The proposed changes do not affect the 2010 Water System Master Plan except for minor modification of the forecasted system-wide water demands. The River Terrace Community is divided into the three pressure zones extending across the area, for the purposes of analysis, identified as the 410 Zone, 713 Zone and 550 Zone. Recommendations for the 410 Zone include construction of a transmission loop extending north to south across the River Terrace area, connecting to existing transmission piping at SW Barrows Road and at SW Beef Bend Road. Recommendations for the 550 Zone include new transmission, storage and pumping facilities. An analysis of water service recommendations and alternatives is provided in the following pages. 13-1484 Page 1 of 9 River Terrace Community Plan January 2014 City of Tigard I. INTRODUCTION In 2010, the City of Tigard updated the community's Water System Master Plan, hereafter referred to as the Water Plan. The Water Plan is the document that guides water system infrastructure improvements in the city's water service area. It was presented to the Intergovernmental Water Board and the Tigard City Council in 2010. Since the adoption of the Water Plan in 2010, the West Bull Mountain Concept Plan (WBMCP) was completed and adopted by Washington County and the city. The area now known as River Terrace (and formerly known as West Bull Mountain) was also annexed to the city. This addendum provides an update to the Water Plan specific to the River Terrace study area and contributes to the city's broader goal of completing a River Terrace Community Plan. Std%611 G%YAF19T #{( SWGp a BEl'U S SW WEIR RD �± 1- n W O S � VI n f x YELP LaUr GAARDE 9 F KR..0 x 1 BULL _ SW MCDDrfA..L..D3T EAvoWgFj SW BONI TA R Y x osgl BEEF SEMa%0 SW DURHAM RA 7{Intl r` C,fy v' rr JEANRD SW �__r;w TUALAVIN r{o T I •: rrin HIISWMYBERG., � r Figure 1 River Terrace Study Area(Outlined in Yellow) The WBMCP Alternative Water Supplies analysis provides the basis for water system planning in River Terrace, which consists of transmission, pumping and storage improvements. This Water Plan Addendum refines the WBMCP by evaluating specific facility needs to provide service to the study area, identified in Figure 1, through improvements to the existing Tigard water system. 13-1484 Page 2 of 9 River Terrace Community Plan January 2014 City of Tigard II. BASIS OF PLANNING AND WATER DEMAND PROJECTIONS This Water Plan Addendum follows the City of Tigard's 2010 Water System Master Plan and assumes 2.48 persons per dwelling unit. The City of Tigard projects 2,587 dwelling units within River Terrace for an estimated build-out population of 6,416 in 2035. River Terrace Water Demands Projected water demands in million gallons per day (mgd) for the River Terrace Community are calculated for this addendum by multiplying projected River Terrace population at build- out by estimated per capita demands. Water facilities recommended to serve River Terrace are sized to meet ultimate capacity needs at build-out as discussed later in this addendum. Per capita water demands are as follows, consistent with the 2010 Water System Master Plan: • Average Day Demand (ADD) = 110 gallons per capita per day (gpcd) • Peak Day Demand (PDD) =231 gpcd The River Terrace water demand at build-out is allocated to the city's 410, 713 and 550 pressure zones according to the percentage of River Terrace land at elevations similar to those of existing Tigard water customers in these pressure zones. Proposed pressure zone boundaries within the River Terrace Community are illustrated on Figure 4. The distribution of River Terrace water demands by zone is as follows: • 410 Zone = 50 percent • 713 Zone= 10 percent • 550 Zone =40 percent Forecasted River Terrace water demands at build-out are summarized in Table 1. Table 1 River Terrace Projected Water Demand at Build-Out Pressure Zone ADD(mgd) PDD(mgd) 410 0.35 0.74 713 0.07 0.15 550 0.28 0.59 TOTAL 0.70 1.48 13-1484 Page 3 of 9 River Terrace Community Plan January 2014 City of Tigard III. SYSTEM ANALYSIS AND RIVER TERRACE WATER SYSTEM CAPACITY In order to provide water service to the River Terrace Community, the city must evaluate necessary supply and storage capacity as well as transmission piping. Water Supply Capacity The city is currently developing a large, long-term supply source through the Lake Oswego- Tigard Water Partnership. The forecasted River Terrace build-out peak demand comprises an insignificant fraction of this supply source capacity. No additional supply facilities are anticipated to serve River Terrace. Storage Capacity The city's 2010 Water System Master Plan defined criteria for assessing adequate storage capacity in each of Tigard's pressure zones. Required storage capacity is divided into three major components—operational storage, fire flow storage and emergency storage—which are defined as follows: • Operational Storage—25 percent of PDD • Fire Flow Storage —land use with highest fire flow requirement within the zone o Residential ■ Low Density = 1,500 gallons per minute (gpm) for 2 hours ■ Medium Density =2,500 gpm for 2 hours ■ High Density = 3,000 gpm for 3 hours o Commercial and Industrial ■ 3,000 gpm for 3 hours • Emergency Storage— 2 times ADD Based on these criteria, adequate storage is available in the 410 and 713 pressure zones to serve the relatively small additional demands from River Terrace. Storage capacity assessment in the 550 Zone depends upon the selected River Terrace 550 water service alternative as discussed later in this memo. River Terrace Proposed Water System Facilities 410 Zone The Tigard 410 Zone serves a majority of existing Tigard customers. Large diameter transmission piping has been extended west with development of the Bull Mountain area in anticipation of the ultimate extension of the 410 Zone to serve the River Terrace area. It is recommended that existing 18-inch diameter piping on SW Roy Rogers Road at SW Scholls Ferry Road to the north and on SW Beef Bend Road near SW 150th Avenue to the south be extended as new 20-inch diameter pipe west into River Terrace. The existing 18-inch 13-1484 Page 4 of 9 River Terrace Community Plan January 2014 City of Tigard diameter piping to the north was recently installed in SW Scholls Ferry Road to serve the River Terrace area. Given the likelihood that the earliest development in the 410 Zone may not all occur near the north or south connections to existing 410 Zone transmission, provisions should be made for extending service into the 410 Zone areas in advance of major transmission piping in SW Roy Rogers Road. It is recommended that a new pressure reducing valve (PRV) station be constructed near the intersection of SW Bull Mountain Road and SW Roy Rogers Road to allow for interim service and for future supply redundancy to this area. Conceptual level cost estimates for the recently installed 18-inch diameter transmission piping, the proposed 20-inch diameter transmission piping, and the proposed PRV station are presented later in this addendum. Cost estimates are based on an assumed transmission main alignment which generally follows SW Roy Rogers Road from existing transmission piping south to the proposed River Terrace rights-of-way shown on Figure 4. These proposed River Terrace rights-of-way will carry transmission piping west to SW 150th Avenue at SW Woodhue Street and south on SW 150th Avenue to existing transmission piping on SW Beef Bend Road. 713 Zone A small area of the River Terrace Community northwest of SW 150th Avenue and SW Woodhue Street will be served by the Tigard 713 Zone as shown on Figure 4. It is recommended that this area be served by extending distribution mains from existing 8-inch and 12-inch diameter piping on SW 150th Avenue. No additional transmission piping or other facilities are anticipated to serve this area. 550 Zone Service Alternatives The existing Tigard 550 pressure zone is divided into sub-zones 550A through 550H which form a partial ring at the base of Bull Mountain. Establishment of these sub-zones in the Tigard water system allowed customers at this elevation to be served as development occurred without constructing looped transmission piping all the way around Bull Mountain at this elevation. Large diameter transmission piping has been extended through each of these sub-zones to facilitate completion of a transmission loop around Bull Mountain with the development of the River Terrace Community. Due to incomplete transmission piping in some parts of the 550 sub-zones, completing this transmission loop may not be the most effective way to serve customers in River Terrace. Two facility alternatives were developed to provide service to the River Terrace portion of the 550 Zone. These alternatives are illustrated on Figures 5 and 6. • Alternative 1 —construct two missing 550 transmission connections near King City and complete transmission loop through River Terrace 13-1484 Page 5 of 9 River Terrace Community Plan January 2014 City of Tigard • Alternative 2 —construct 550 pump station and reservoir to deliver water from existing 410 Zone Menlor Reservoir and connect River Terrace transmission piping to existing 550 Zone transmission For both Alternatives 1 and 2, approximately 8,000 lineal feet(LF) of 16-inch diameter mains would provide north-south transmission through the River Terrace 550 Zone. The alignment of this transmission piping would follow proposed rights-of-way through River Terrace with connections to existing 550 Zone piping at three locations: SW Venezia Terrace, SW Bull Mountain Road and SW 161st Avenue. This proposed 550 transmission piping is illustrated on Figure 6. Alternative 1 would require additional transmission piping within River Terrace and between existing sub-zones 550A, 550G and 550H. Within River Terrace, transmission piping described in the previous paragraph would be extended approximately 4,000 LF south and west from SW 161st Avenue to connect to existing 12-inch piping at SW 150th Avenue and SW Woodhue Street. In order to complete 550 Zone transmission around the west side of Bull Mountain, sub-zone 550A must be connected with 550H east of SW Colyer Way and sub-zone 550H must be connected with 550G east of SW Peachtree Drive near King City. Both of these connections require potentially complex crossings of Clean Water Services (CWS) designated stream corridors outside of existing public right-of-way. In addition to construction feasibility issues, significant land acquisition would likely be required to facilitate construction of stream crossings. Alternative 2 uses proposed River Terrace 550 Zone transmission piping to connect existing sub-zones 550A, 550B and 550C. The expanded West Bull Mountain 550 Zone would be supplied by a proposed reservoir on the city-owned Cach properties. A new pump station adjacent to the city's 410 Zone Menlor Reservoir would supply the proposed Cach Reservoir. Until the proposed pump station is completed, the reservoir could be filled by an existing temporary pump station at the Menlor site which was constructed for the city's Pump Station 10 expansion project. Alternative 2 would also require installation of transmission piping from the proposed Cach Reservoir site to connect to existing 550B piping on SW 158th Terrace at SW Baker Lane. Proposed transmission piping from 550B to the proposed reservoir site would require crossing a CWS designated stream corridor in the city-owned Cach Park Natural Area. Unlike Alternative 1, no property acquisition is anticipated to facilitate construction of this stream crossing. Recommendation: Alternative 2 It is recommended that the River Terrace Community 550 Zone be served from a new reservoir and pump station as described in Alternative 2. Alternative 2 would provide adequate fire and emergency storage within the 550 Zone rather than relying on pressure reducing valves to provide supply from the 713 Zone reservoirs which have inadequate existing capacity to serve forecasted 550 Zone demands as presented in the 2010 Water Plan. 13-1484 Page 6 of 9 River Terrace Community Plan January 2014 City of Tigard Proposed 550 Zone Cach Reservoir Storage Capacity The proposed Cach Reservoir, required for recommended 550 Zone service Alternative 2, must be sized to provide adequate storage capacity for sub-zones 550A, 550B, 550C and the River Terrace 550 Zone area. Projected demands for sub-zones 550A through C in 2030 are taken from the 2010 Tigard Water System Master Plan. River Terrace 550 build-out demands are presented in Table 1 of this addendum. Storage capacity criteria are consistent with the 2010 Water Plan as described earlier in this addendum. Required fire flow capacity is 3,000 gpm for 3 hours based on the proposed school in the River Terrace 550 Zone. It is recommended that the Cach Reservoir have an approximate capacity of 3.0 million gallons (MG) as summarized in Table 2. Table 2 Proposed 550 Zone Cach Reservoir Capacity West Bull Mt ADD PDD Required Storage(MG) 550 Zone (mgd) (mgd) Operational Fire Emergency TOTAL 550A 0.09 0.19 0.05 0.18 550B 0.34 0.71 0.18 0.68 550C 1 0.24 0.50 0.13 0.48 River Terrace 0.28 0.59 0.15 0.56 TOTAL 0.95 1.99 0.51 0.54 1.9 1 2.95 Notes: 1. Sub-zone 550A and 550C demands are taken from the 2010 Water System Master Plan demand tables for the year 2030. 2. Sub-zone 550B 2030 demands have been re-calculated for this Addendum to exclude land which is now part of the River Terrace Community. 3. Operational storage is estimated as 25 percent of PDD. 4. Fire storage is based on a required fire flow of 3,000 gpm for 3 hours due to the proposed school in the River Terrace 550 Zone. 5. Emergency storage is estimated as 2 times ADD. Proposed 550 Zone Pump Station Capacity The proposed 550 Zone pump station at the Menlor Reservoir site should have adequate firm capacity to supply PDD for the proposed West Bull Mountain 550 Zone. Firm capacity is defined as the total pump station capacity with the largest pump out of service. This criterion for pump station sizing is consistent with the city's 2010 Water System Master Plan. As shown in Table 2, total PDD for the West Bull Mountain 550 Zone, a combination of 550A, B, C and River Terrace sub-zones, is 1.99 mgd or 1,382 gpm. It is recommended that the proposed 550 pump station on the Menlor site have an approximate firm capacity of 1,400 gpm. The existing temporary pump station at the Menlor Reservoir site has a single pump with a 1,500 gpm design capacity. The temporary pump station is equipped with a variable frequency drive (VFD). Although this pump station is capable of supplying adequate flow to 13-1484 Page 7 of 9 River Terrace Community Plan January 2014 City of Tigard the proposed Cach Reservoir it lacks the redundancy provided by multiple pumps, thus a permanent pump station is required to replace the existing station. Future Service to Urban Reserve Areas Water service to the Urban Reserve Area(URA), URA6C (North), URA 6C (Middle) and URA 6C (South) assumes that the recommended 410-foot pressure transmission piping for the River Terrace area is constructed. All three URA areas are at an elevation that can be served directly from the 410-foot pressure zone. Existing storage facilities and proposed transmission piping for the River Terrace area are adequate to extend the water distribution piping grid to these areas for water service. It is anticipated that looped 8-inch to 12-inch diameter piping will be adequate for residential development in these areas. Larger transmission piping may be required if high density residential, commercial or industrial development is planned in these areas. IV. CAPITAL IMPROVEMENT PLAN Summary of Recommendations and Conceptual Level Costs It is recommended that water service be provided to the River Terrace Community by extending transmission and distribution mains from the City of Tigard's existing 410, 713 and 550 pressure zones. The 713 Zone includes only a small area of the River Terrace area that can be effectively served by extending existing distribution mains with no additional transmission required. Proposed piping would be placed in public rights-of-way to be dedicated as part of the River Terrace development. Proposed public rights-of-way are illustrated on Figure 4. Adequate storage is available in the 410 and 713 Zones to serve proposed customers in River Terrace. It is recommended that a 3.0 MG storage reservoir be constructed to serve the River Terrace 550 Zone as part of a larger West Bull Mountain 550 Zone which would include the existing 550A, 550B and 550C sub-zones. This proposed 550 Zone reservoir would be constructed on the city-owned Cach properties. The reservoir would be filled through a new pump station with a firm capacity of 1,400 gpm located at the 410 Zone's Menlor Reservoir site. Until the proposed pump station is completed, the proposed Cach Reservoir may be filled from an existing temporary pump station on the Menlor site with a design capacity of 1,500 gpm. Service from the proposed Cach Reservoir would also require installation of transmission piping from the reservoir site to existing 550B piping on SW 158th Terrace at SW Baker Lane. Conceptual level costs for proposed water facilities to serve the River Terrace Community are presented in Table 3. Cost estimates represent opinions of cost only, acknowledging that final costs of individual projects will vary depending on actual labor and material costs, market conditions for construction, regulatory factors, final project scope, project schedule and other factors. The American Association of Cost Engineers (AACE) classifies cost estimates depending on project definition, end usage and other factors. The cost estimates presented here are considered Class 4 with an end use being a study or feasibility evaluation 13-1484 Page 8 of 9 River Terrace Community Plan January 2014 City of Tigard and an expected accuracy range of-30 percent to +50 percent. This range represents the potential variability of project costs and should not be applied directly to the estimates presented in Table 3. Estimated costs include approximate construction costs and an allowance for administrative, engineering and other project related costs. Unit costs for transmission piping are based on unit costs presented in the 2010 Tigard Water System Master Plan. Since construction costs change periodically, an indexing method to adjust present estimates in the future is useful. The Engineering News-Record (ENR) Construction Cost Index (CCI) is a commonly used index for this purpose. For purposes of future cost estimate updating,the current ENR CCI for Seattle, Washington is 10135 (November 2013). Table 3 River Terrace Proposed Water Facilities Conceptual Cost Estimates Total Conceptual Proposed Facility Qty I Unit � Unit Cost Cost 410 Zone: 18-inch Transmission Main 2,500 LF - $1,398,500(1) 20-inch Transmission Mains 15,200 LF $400 $6,080,000 550 Zone to 410 Zone PRV 1 LS $200,000 $200,000 713 Zone: None - L - I - - 550 Zone (Alternative 2): 16-inch Transmission Mains through River Terrace 8,000 LF $350 $2,800,000 3.0 MG Cach Reservoir 1 LS $5,400,000 $5,400,000 16-inch Transmission from Reservoir to 550B 1,700 LF $350 $595,000 1,400 gpm (firm capacity) Pump Station 1 LS $1,100,000 $1,100,000 Note: 1. This cost is the City of Tigard's budgeted amount for the installation of this pipe. 13-1484 Page 9 of 9 River Terrace Community Plan January 2014 City of Tigard _ -,r�— - `?-. -r -R r ..a��, a '� -c i�� a�"`'. `.��'3"'ta� '- `��I;�. 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R r ~ — � , r MED UMDHIGH DENSITY RESIDENTIAL ' ENSITY RESIDENTIAL(R- URBAN RESERVE 6C R-12 R R-4.5 AL,R-,z, (NORTH) i ri;'' M HIGH DENSITY RESIDENTIAL(A 25) R 4 R-25 ' < 7w' i� Ky'W-; R 4:5Q1� r r R-12; URBAN RESERVE 6C ` 3 (MIDDLE') ! rIP FAQU-MT#IN,RIO " to R-12 R-4.5 ` yxt 1 f R-7 �; f FIGURE 3 -------------- x - `• CITY OF TIGARD — _,•_ RIVER TERRACE COMMUNITY PLAN Y K URBAN RESERVE 6C MVER TERRACE ZONE DESIGNATIONS o N f,coo !' �?I��. (SOUTH) ' J.—Ly SCALE IN FEET .g __ - •}? l':rt 5 NE Rob,o t - _ SW BEEF BEND RD URBAN RESERVE- 2" t " 't 13 1484 CITY OF bEAVERTON �_ r { •� J I -fit �. ?a sw SCKPLLs TERRY bra w F � � 1��1 f '\,_ /� �/ t' F "'-• i O `k�T�l s''_ � t w ��ltrl'� �•` r i.Y"+'. � \ j 4`.- Y lh •. .. 1 � 4 f tY`,`- =�•. Illf� •�. r! � �'` - U Ary RESERVE 6C -,I.oRTH} I +f- � �. J ��4 rx ice- 21• I .. I: '._ r.ri 4 �Fp: ,A. n {: yf F s:fir/ ! f '.„-�- _ r �r _ ,,,••• r 4 . / �a`s�•/rr + IL / x ! A _.-r� 1 _ t _- l P Hf FfT; � $'rr ,d ` aRURAL s /•fIj.r _ .''f__ -_L' I� ' _!r i.If.i1rl+ - �/k-� Ii �1�� rc.fa� l'�• r . I � • .Ji• �}yru'�d1f RESERVE 5C i-� �A anH BPITsCa.Rnnn'✓u` cs�I ._-BH�y IEG FPH 7n III,R61AC { +q 4"h,"!9'r6{ll}ti '- : I { y r f , SWy41UL'l:MOkINTAI�RD � ,.�� moi: G.. I '.•M• I N-,',�'-_� •f ,. r ''•k6E1` :'K ./ r '9r�J TA' �• .,.-•--_ - 4rl — -�_ I y r,r, r'� a tg a, I rr ' • ! -I .-1.� � 1 rpt 1" � � I N -40 rf f xr. i a ti. -- s.Tx r CAP:1 t,U M� 1 ' w' g of so 0 N UNDESI GIV�4�'IwD r/4� !!r!r' t 11S`ti _. 1xxxrlrfrir_ L '3. la •j 1:. ..� r souacE SCALE IN FEETt xI t�• ! r _ f{�!'! (xl, t: /r r .. ' _ �-•- r .f F !!f Y+. -. V'' Rs aEAry wnrER SDev cEs - ' AERALPHoro ESR AR�soN�NE,��vzo,o, , w r l ixr rfr�'r r x wAR1 CnroArRU(RLEcx ALLT.' PcmEII.,Usoo,v z-1 YFIGURE 4 ORIVER TERRACE COMMUNITY STUDY AREA ` PROPOSED RIGHT-OF-WAV /f URBAN RESERVE AREAS • II TIGARDCITYLIMITS f' %✓ - , �-,- - +' t ExISTwOwATER.mCITY OF TIGARD N ,� - -- �-._-, _-•. _ � RIVER TERRACE COMMUNITY PLAN r .. _� ''�t 1V-NTOU IS �._•. � .�� - - PRESSURE ZONE BOUNDARIES URBAN RESERVE 6C PRESSURE ZONES(HGL): 1� -�,te 15 - Janua 2014 MSA� � s3o �r!L � M1 t, s•.v�pLer aerrawa ly 1 - rr�j',F d ', } .rseE- rI►cI I:,+.0 13-1484URSAN RESER a 7 4QV rxA, ..I i•'. —�_ •LR1vr`r}♦t+[ _ • t._IP t-...�,^. AmV �a ?=,'ARIC „rT:m[Ar-��c t�Frrrasl��F .;61R�..rt.«��.n.rt t41e: 1 i 4e L , II-iy FIGURE 5 ;i � :.f� , ice .•iE«E 'Jk 4 r! # �� r:�,L •_ °4�#irk##F#�iF�'•" ;p��i '+f"� ��[��k��##>r�� *_ •��i Kik ?t iE ,. CITY OF TIGARD RIVER TERRACE COMMUNITY PLAN ! iw RIVER TERRACE 550-ZONE SERVICE ALTERNATIVEti January 2014 • i Ip. 13-1484 ;� �� r� �[S:Rs�std=+L�rhtnn_Pre: ` 3 � �TYIyC i l f �T I F�'. s.l v�llE►�fjMl##�4� � 7 �s:iiwd 3 ti�r ■ �' ��•-�i< ,!C0 1,200 SCALE IN FEET -r - + ISM_ "r � ' ! 17 If �ar` °1�0, :►,'I •,7fi '�N ?`�. * � _ r � R'� eie�a�rr IU ►J � ofd�Ef#ffll�I4a► �;'ixi1 4 AERIAL CONTOURS-CLEAN VVATER SERVICES ONLINE 10) WATER SYSTEM-CITY OF -•(DEC • I• 5 iJl�#�!la' r "' •� �ysRX'�a$Tgs :fl I� n �•Ysr gE; SFS. ;lh � •' 1 l Er' # / s I 6.4 LEGEND __�i'.r` •R o Wig.-ie a.r.��!t-. �V'u+.t��V.1�?�k�l.�'.'i ■ PROPOSED WATER MAINSCF a�. .� r f�•sr . _ PRESSURE •NE s .., • ky'i�fFli .rr a r-- T\�7,�� 's �, -....� � rA PROPOSED RIGHT-OF-WAY NATURAL RESOURCE CORRIDOR a 'r•+� TIGARD CITY LIMITS all!ari — EXISTING WATER MAIN ell Y 1 ��s•m.�.- zks�r a•.=��r. .�- i �� .lC'�TIf••"Ld'Ell.-T. r.url.i►� .�� ---_.y _•—.� "s. nrr I � ��arS-:.,;:,x.,:saarr•r�—�asx�aw eaarrr�aa�.a.art.::a.�r�r.mss=:rk�.�-v-"�rwrru��'.. PYR Pyr, SIA# iceFIGURE 6 lf"■ • a � d�.. 'U� � 1 •'� � � TIGARD n • �` ` )�i1Pt r,4L aiCl► �� ,I �j �il€ it�11P ➢lid AFA117 CITY w • izia+a + zg, PI 1 •TERRACE COMMUNITY RIVER TERRACE 550-ZONE psi E In zSERVICE ALTERNATIVE 2 'gPl iiii'�i1k [1(.- January2014 " MSA _. r lar... f I it Lf t! �=>#c�e� +t+�w � e ii = iai99 111r 0i 0 ar i+!` # pp�� ;�1+• " ■ s a '�i"='� � � � � ��tT: J�■�:�C�ir til,"•��.14'.^I f,F�'ry'�. '}� SCALE IN FEET SOURCE I ' AERIAL PHOTO-ESRI ARCGIS ONLINE(JULY 2010) ICONTOURS -. . yrs,9�i fPriiPj 1i • rel w OTHERALL BASEMAPPING METROIRLIS 7f.i .P �;".�� '�d. �I'!e��' w l +arv■�+rt . r�slaer r.9�iY" am 1 r 4 j7p _ j—u- i tug� � war�i� 1.. �'�•�C •1.q�i'�tfiJg3ii+�gi.. ��'�� ■ry � w '�»' GEND �. Y es■s TJ°w r�.y�-'i1 PROPOSED RESERVOIR ,�rr�� ' � r � i` � �� >; �e i■fie 5PROPOSED RIGHT-OF-WAY � PROPOSED PUMP STATION PROPOSED WATER MAIN c. 550 PRESSURE ZONE it i 4-!•. .. hill..NATURAL RESOURCE •"■•-EXISTING WATER MAIN WIWI fiv TIGARD CITY LIMITS y rQ� gr Ctrlllll .:';.1�'��■arir�as.��l�.i� t �� .�S1L•itl,. �w•■•j.-e_�. NJ mile oRFIGURE 7 - - �� [IIEI� a-�'� fat•�`".r '� '^,� ogo 71a�l� nr ■, e1E � i ti14�1E�..�.11•. 1 ,_ y• rr 1 l �#�•,.1 say i 1�..,F�� ,�•��+aEr14i11 �1�111u' r CITY OF TIGARD I INN 1 � �► � firE�,+,��1 t� �� TIGARD '�i"p.11:. RIVER TERRACE COMMUNITY PLAN PROPOSED 11! It WATER SYSTEM IMPROVEMENTS W. 011[!iltflr� _ January 2014 1 1' rolu A.K. MQ A 11 1 f i, k sinki k All , 1mixt., oil N 1,200 om 4�3 Iw SCALE IN FEET — — tjlriy� 'li!"MR 7f AER IAL PHOTO-ESR I ARCG IS ONLINE(JULY 2G1 0) �i/# CONTOURS-CLEAN WATER SERVICES 1 • li r.i�� +i15i SRA !' " -■ 2010) v IY• ..+t � �il�ilYltrlErf.�,wyfaYl �& -•- (NOV0 rr i. Olt, Wilaw, r Elm LEGEND PROPOSED RESERVOIR -•'• ■PUMP STATIONt _ •ttu �ka 11 _ 4-*7 PROPOSED WATER MAINS 410 PRESSURE ZONE 550 PRESSURE ZONE PROPOSED RIGHT-OF-WAY (� •1. f T � �r T }irk NATURALRESOURCECORRIDOR 1 ` 'ate. \� ` 111•. 14 roc. !r If • f�`.- i r • !a■PQl 171 ILI 12" TIGARD CITY LIMITS �r � yf7I EXISTING WATER MAINS 10'CONTOURS �� E - _ �� t •1'.e�sr ��OAi1R1 i 1 � ��it7 rr •^�tc�r[ele:c:s Y aelllll __ 1 ♦ir r' tti� -.•�:� �� :+tP� CII��.�1a 01 '.�.R9Y5•I:]'- Submitted at the TWD Meeting By: U101-1 _AJ 1a,12Kis Date: - 11-Z Agenda Item No.: Preliminary Water and Sewer Funding Analysis: Findings and Strategies for River Terrace 4/28/2014 WATER 1. Funding Trend Expected without 1.1 Lake Oswego/Tigard Water Partnership Commitments in Place River Terrace 1.2 City bond proceeds of up to$51 million needed by FY 2020 1.3 Water fund must exceed 1.15 minimum coverage, plus establish Debt Service Reserve Fund equal to 1 year of debt service 1.4 Utility rate increases are planned to meet these requirements 1.5 Water utility customer accounts outside River Terrace estimated to increase from 19,875 (FY 2015)to 20,236 (FY 2020);0.45%avg.annual growth rate 1.6 Annual O&M requirements are estimated to decrease from $8.4 M (FY 2015)to $7.9 M (FY2020)without River Terrace 1.7 Annual avg.water rate revenue per account is estimated to increase from $454 to $495 per year(between FY 2015 and FY 2020) 1.8 Available resources from water system development charges(SDCs)for capital projects expected to increase from $2.9 million (FY 2015)to$8.1 million (FY 2020) 2. Funding Impacts with River 2.1 Anticipate 280 to 460 net new dwelling units added in total between FY 2016-17 Terrace and FY 2020-21 2.2 River Terrace is not expected to significantly impact City water rates or O&M costs 2.3 No change compared with baseline unless city chooses to assist developers in constructing new water transmission lines in River Terrace 2.4 Available resources from water SDCs for capital projects (city-wide) expected to range from $8.1 to$14 million FY 2020 City water SDC fund balance could help fund or finance capital projects in River 3. Draft Funding Strategies for River 3.1 Terrace Terrace 3.2 City can also use pay-as-you-go CIP funding for smaller projects Potential City-Led Projects 4. Potential Public Facility Plan 4.1 Pressure Reducing Valve(design &construction) Projects for River Terrace (by FY 4.2 3.0 MG Cach Reservoir(design/construction) 2020) 4.3 Design of transmission mains in 550 and 410 zones Potential Public-Private Projects 4.4 16-inch transmission mains in 550 zone(design starting in 2016; construction subject to development agreements and SDC credits) 4.5 20-inch transmission mains in 410 zone (design starting in FY 2016; construction subject to development agreements and SDC credits) PRELIMINARY SUMMARY FINDINGS:WATER The City of Tigard's Water Fund is being programmed to make major investments per the LO-Tigard Water Partnership. Prior and planned rate increases should adequately address revenue requirements and enable the city to proactively construct capital projects that benefit existing and future customers, including those in River Terrace. Development Agreements could be utilized to allow private(developer) construction of water lines(eligible for SDC credits). Water and Sewer Summaries v4 D5W edits.xlsx WATER SYSTEM EXCERPT For a copy of the complete Funding Strategy go to: www.RiverTerraceTigard.com ,,,Submitted at the TWD Meeting Z By: , a Date: Agenda Item No.: City of Tigard River Terrace TIGARD RIVER TERRACE FUNDING STRATEGY DRAFT REPORT September, 2014 FCS GROUP 4380 SW Macadam Ave. Suite 220 Portland, OR 97239 T: 503.841.6543 1 F: 503.841.6573 This entire report is made of readily recyclable materials, including the bronze wire binding and the front and back cover,which are made from post-consumer recycled plastic bottles. City of Tigard River Terrace 1-unding Stralegy September, 2014 page 29 III . FUNDING STRATEGY FCS GROUP relied upon the River Terrace master plan amendments and the current adopted Tigard five-year Capital Improvement Program to identify specific improvements and their associated capital costs for public facilities related to River Terrace. This section highlights the overall findings, public facility capital costs, near-term project assumptions, funding scenario evaluation, and preliminary preferred scenarios for each infrastructure type if River Terrace develops as planned. Funding revenue forecasts are based on medium absorption forecast depicted in the preceding table. A. WATER A.1 Overall Findings The service provider for water in River Terrace is the City of Tigard. The City of Tigard's Water Fund is being programmed to make major investments per the Lake Oswego-Tigard Water Partnership. Prior and planned rate increases should adequately address local revenue requirements and enable the city to proactively construct capital projects that benefit existing and future customers, including those in River Terrace. Development Agreements could be utilized to allow private (developer) construction of water lines (eligible for SDC credits). There are three zones in River Terrace with different water pressures in the water system: a 410 zone, a 550 zone, and a 713 zone. Adequate water capacity is currently available to serve future River Terrace development within the 410 and 713 zones. However, there is a city-wide need for additional water storage capacity in the 550 zone. City staff estimates that only 72 additional homes can be built in River Terrace within the 550 zone before the new 3.0 million gallon per day (gpd) Cach Reservoir is constructed. A.2 Public Facility Costs Near-term water facility improvements include capacity-related facilities in the 410 and 500 zones. The 410 zone will require two transmission mains and a water pressure reducing valve (PRV), the only upgrade required in the near term. The new Cach Reservoir and a new pump station and transmission main is planned in the near-term to serve city-wide needs within the 550 zone. See Exhibit 2 for details. 4:� FCS GIA, Ciiy of ligard River Icrrace f unding Siraiegy Sepicmber, 201 page 30 Exhibit 2: Water Infrastructure Needs Near Facilities by Pressure Zone Capital Cost Ter rn Potential Funding Source Notes ,410 Zone: 18-inch Transmission Mains $1,398,500 ❑ Funding primarily through water rates and SDCs(credit eligible) 20-inch Transmission Mains $6,080,000 ❑ Funding primarily through water rates and SDCs(credit eligible) 550 Zone to 410 Zone PRV $200,000 Funding primarily through water rates and SDCs None - 16-inch Transmission Mains through River Terrace $2,800,000 ❑ Funding primarily through water rates and SDCs(credit eligible) 3.0 mgd Cach Reservoir $5,400,000 Funding primarily through water rates and SDCs 16-inch Transmission from Reservoir to 5506 $595,000 LSI Funding primarily through water rates and SDCs 1,400 gpm (firm capacity)Pump Station $1,100,000 Funding primarily through water rates and SDCs Total Cost $17,573,500 Source: River Terrace Water System Master Plan Addendum June 2014,compiled by FCS Group A.3 Funding Scenarios There is one funding scenario for water infrastructure which is generally consistent with the existing funding sources utilized by the City of Tigard. This includes utility fees, citywide SDCs, and developer dedications of local transmission lines (Exhibit 3). Exhibit 3: Water Funding Scenario Scenario Funding Source A(status Notes • Utility Fee (existing) Existing city-wide water rates may be increased to address costs SDC (City Wide) Existing city-wide water SDCs should be sufficient to address costs Developer Developers to provide/construct local water system connections Preliminary Ranking 1 A.4 Evaluation Overall, the water funding scenario received a total score of 24 points (out of a possible 30 points). The scenario has good marks for equity, reliability, ability to facilitate development, and can be implemented without the need to establish new sources (Exhibit 4). `k FCS GROUP Cily of ligard Rivcrlerrace I unding Siralegy Scpicmbor,?014 page 31 Exhibit 4: Water Funding Evaluation Criteria Evaluation . - - Criteria A (status ,Equity(1: lower cost burden -5: higher cost burden) quo) General Fund Cost BurdenEl Citywide Resident Cost Burden 0 Citizens in Subdistrict Cost Burden Developer/Property Owner Cost Burden lEvoluation Criteria(I.,worst-5:best)' Equity(Standard Deviation of cost burden)* Reliability of Funds Facilitates Development Ease of Implementation Ability to Address Near-Term Costs 0 Ability to Address Long-Term Costs Total Score(sum of Evaluation Criteria) 24 * denotes relative variance from "uniform"equity(whereas developers, city, future residents and existing residents would split costs equally) A.5 Analysis of Preferred Funding Scenario Total water system infrastructure costs, excluding local connections to main transmission lines, are estimated at$17.6 million. Estimated near-term costs for water infrastructure total $7,295,000 (FYE 2014 dollars), most of which will be paid for using rate revenues from the water fund. The rest of the near term and long term funding will be paid through SDC and water rate revenue (see Exhibit 5). Developers will be responsible for constructing local connections, the cost of which is not listed. Exhibit 5: Water Funding Strategy, Scenario A Scenario . FundingNear Term Long Term Funding Mechanism . - Utility Fees (Water Fund) $5,295,000 Reflects portion of Water Fund Balance by FYE 2021 SDC (City wide, Water SDC Fund) $2,000,000 $10,278,500 Existing SDCs (after inflation adjustment), $7,930 per SFD Total Revenue $7,295,000 $10,278,500 Total Cost $7,295,000 $10,278,500 City of Tigard River terrace Funding Strategy September, 2014 page 32 IV . POLICY CONSIDERATIONS The River Terrace funding strategy includes a plan for funding required public facilities using existing and new funding sources as well as partnerships with service providers and developers. The funding strategy recognizes the limitations of current financial resources that are available to the City and other service providers, and provides a plan for funding infrastructure required to support planned development. A. GENERAL CONSIDERATIONS • It is recommended that local City policies be adopted to clarify the relationship between the provision and funding of public facilities and when new development can be permitted in River Terrace (and possibly elsewhere in the City). This may entail adoption of an adequate public facilities ordinance that addresses the process for determining when and how public facilities are considered reasonably funded so that development can be permitted in River Terrace. • Ongoing inter jurisdiction coordination will also be required among the City,Washington County, ODOT, CWS, and other agencies to ensure that cost sharing agreements are consistent with each agencies expectations. • The City may desire to extend its Capital Improvement Program from five years to six years to provide additional time for River Terrace SDCs and fund balances to accumulate to ensure that adequate funds are in place to complete the highest priority projects. • The City should update its SDCs for water, sewer, stormwater, transportation and parks by FYE 2014 to take into account these recommendations. As part of this update, the City may also consider updating its SDC policies regarding how revenues are to be allocated to River Terrace and other citywide needs. The City's SDC credit policies should also be updated to clarify how SDC credits are calculated and applied to eligible public facilities. The findings and recommendations contained in this Financial Strategy also include the following issues and considerations for each public facility type. B. WATER SYSTEM • Existing funding sources and planned rate increases should be adequate for addressing water system requirements needed citywide and for River Terrace. • Adequate water capacity is currently available to serve future River Terrace development within the 410 and 713 zones. However, there is a city-wide need for additional water storage capacity in the 550 zone. City staff estimates that only 72 additional homes can be built in River Terrace within the 550 zone before the new 3.0 million gallon per day(gpd) Cach Reservoir is constructed. • The City may consider other interim water system improvements that could be provided, such as pressure reducing valves from the 713 zone to serve the 550 zone, to increase the amount of development that can occur in the 550 zone, in advance of the new Cach Reservoir. •:;� FCS GROUP 32 City of Tigard River Terrace Funding Sirafegy September, 2014 page 33 V . APPENDIX 10-year forecast of selected city funds 33 FCS GROUP City of Tigard River Terrace Funding Strategy September, 2014 page 29 Water Utility Fund -.?FCS GROUP S�luunn.-��nonlod(o"'Lk 6/30/2015 6/30/2016 6/30/2017 6/30/2018 6/30/2019 6/30/2020 6/30/20221 6/30/2022 6/30/7023 6/30/2024 .y ofT Budget Projected Projected Projected Projected Projected Projected Projected Projected Projected Woter fund Resources: Beginning fund balance $ 12520,630 $ 6,104,977 $ 4,944,42B $ 4,78B,614 $ 4,832,714 $ 4,921,639 $ 5,019,045 $ 5,113,576 $ 5,201,114 $ 5,288,088 Revenue: 43126 Developer overhead 9,663 7,440 7,440 7,440 7,440 7,440 7,440 7,440 7,440 7.440 43128 Fire service reimbursement 1,470 - - - 43130 Miscellanous fees and charges 3,267 793 793 793 793 793 793 793 793 793 43301 SDC reimbursement 45100 Utility sales 18,057,552 18,645,801 18,989,939 19,358,488 19,752,088 20,151,966 20,528,654 20,872,712 21,220,821 21,523,867 45101 Other utility sales 4,456 4,456 4,456 4,456 4,456 4,456 4,456 4,456 4,456 4,456 45102 Leaks/misreadscredits (22,984) (21,988) (22053) (22,123) (22,198) (22273) (22,345) (71,410) (22476) (22533) 45104 Meter sales 27,762 35,805 70,373 81,586 93,499 96,959 100,547 104,269 108,129 112133 45105 Fire hydrant flow testing service 6,006 6,006 6,006 6,006 6,006 6.006 6.006 6,006 6,006 6,006 45150 Late penallies/charges 121,136 125,185 125,561 125,963 126,392 126,829 127,240 127,616 127,995 128,326 45151 Returned check fees 1.290 1,290 1,290 1,290 1,290 1,290 1,290 1,290 1,290 1,290 45199 Bad debt (20,544) (24,933) (25,281) (25,654) (26,052) (26,457) (26,838) (27,186) (27,538) (27,844) 45319 Mscellanous fees and charges 372 372 372 372 372 372 372 372 372 372 45320 Rental income 33,234 33,234 33,234 33,234 33,234 33,234 33,234 33,234 33,234 33,234 47000 Interest earnings 67,611 32967 26,700 25,859 26,097 26,577 27,103 27,613 28,086 28,556 48000 Other revenue - - - 48001 Recovered expenditures 10,825 - - - - 49100 Transfer In from General Fund 27,460 27,460 27,460 27,460 27,460 27,460 27,460 27,460 27,460 27,460 49500 Transfer In from Sanitary Sewer Fund 13,413 13,413 13,413 13,413 13,413 13,413 13,413 13,413 13,413 13,413 49510 Transfer In from Stormwater Fund 17,878 17.878 17.878 17.878 17,87- 17,878 17,878 17.678 17,878 17.878 Total revenue 18,359,867 18.905,178 19,277,579 19,656,460 20.062,168 20,465,943 20,846,704 21,194,956 21,547,360 21,854,844 Total resources S 30,880497 $ 25,010,154 $24,222008 $ 24.445,074 $ 24,894,882 $ 25,387.582 $_25.865,748 $ 26=,533 $26,7411473 $27,142934 Requirements: Expenditures: Personnel services: Salaries $ 893,506 $ 935,614 $ 979,707 $ 1,025,877 $ 1,074,224 $ 1,124,849 $ 1,177,859 $ 1,233,368 $ 1,291,493 $ 1,352357 Benefits 437,142 45B,999 481,949 506,047 531,349 557,916 585,812 615,103 645358 678,151 Total personnel services 1,330,648 1,394,613 1,461,656 1,531,924 1,605,573 1,682765 1,763,671 1,848,471 1,937,351 2,030,508 Materials and services: Supplies 3,869,952 4,005,4002005,400' 2075,589 2148,235 2,223,423 2301,243 2381,786 2465,149 2,551,429 Franchise fee 508,000' 672961 685,382' 698,684' 712.889' 727,322' 740,917' 753,335' 765,899' 776,836 Other service 1,120,611 1,159,832 1,200,427 1,242,441 1,285,927 1,330,934 1,377,517 1,425,730 1,475,631 1,527,278 Total materials and services 5,498,563 5,838,194 3,891,209 4,016,714 4,147,051 4,281,679 4,419,677 4,560,851 4,706,678 4,855,543 Capital outlay 3,300 3,416 3,535 3,659 3,787 3,919 4,057 4,199 4,345 4,498 Transfers out and Indirect cost allocations 1,543,771 1,611,269 1,681,719 1,755,249 1,831,994 1,912094 1,995,697 2082,955 2174,028 2269,083 Non-program expenditures Transfers out to Water CIP Fund 7,639,391 2,467,150 1,671,982 1,408,009 1,308,561 1,396,004 1,463,089 1,488,918 1,502845 1,464,662 Transfers out to Water Debt Service Fund 8,490,141 8,469,584 10,429,485 10,590,152 10,756,216 10,758,020 10,757,320 10,758,120 10,755,320 10,756,145 Transfers out to other funds 269,707 281,499 293,807 306,654 320,061 334,055 348,661 363,906 379,817 396,424 Total non--program expenditures 16,399,239 11,218,234 12395,275 12,304,814 12384,838 12488,080 12569,070 12610,943 12637,982 12617,230 Total expenditures 24,775,521 20,065,726 19,433,394 19,612360 19,973,242 20,368,538 20,752,172 21,107,419 21,460385 21,776,862 Ending fund balance 6,104,977 4,944,428 4,7813,614 4,832714 4,921,639 5,019,045 5,113,576 5,201,114 5,288,088 5,366,072 Total requirements $ 30.880.497 $ 25.010.154 $ 24,222,008 $ 24.445,074 $ 24,894.882 $25387,582 $25,865,748 $26,308,533 $26,748.473 $27,142,934 Days of expenditures in ending fund balance 90 90 90 90 90 90 90 90 90 90 ROUP FCS G City of Tigard River Terrace Funding Strategy September, 20'4 page 30 Water CIP Fund ";>FCS GROUP �iiluunrnc-Urioi.7cvi C 0nulm't' 6/30/2075 6/30/1016 6/30/2017 6/30/2018 6/30/7019 6/30/2020 6/30/2021 6/30/2022 6/30/2023 6/30/2024 TigardC4 of Water Utility Budget Projected Projected Projected Projected Projected Projected Projected Projected Projected Water CIP Fuad Resources: Beginning fund balance $ 43,726,812 $ 17,974.151 $ (31,102) $ (38,230) $ (25,709) $ 5,980 $ 1,134,916 $ 2325,353 $ 3,535,859 $ 4,754,107 Revenue: 43300 System development charges 44800 Federal grants 47000 Interest earnings 236,125 97,060 (168) (206) (139) 32 6,129 12,557 19,094 25,672 48001 Recovered expenditures 5,265 - - - 49001 Debt proceeds 46,894,542 - 1,425,529 1,952,010 1,967,930 0 0 0 0 0 49100 Transfer in from General Fund - 49425 Transfer in from Parks SDC Fund 49500 Transfer In from Sanitary Sewer Fund - 49530 Transfer In from Water Fund 888,104 2,467,150 1,671,982 1,408,009 1,308,561 1,396,OD4 1,463,089 1,488,918 1,502,845 1,464,662 49531 Transfer In from Water SDC Fund 34.5.OT - - _ Total revenue 48,369.036 2564,211 3,097,343 3.359,813 3.276,351 1,396.037 1„46%217 1,501,475 1,521.939 1.490,334 Total resources $ 92095.848 $ 20,538,362 $ 3,46041 $ 3,321,582 $ 3,25D,642 $ 1,402017 S 2,604,133 $ 3,826,828 $ 5,057,798 $ 6,244,441 Requirements: Expenditures: Capital outlay $ 73,906,047 $ 20,344,385 $ 2,869,551 $ 3,102,100 $ 2,988,750 $ - $ $ $ - $ Debt service - _ _ _ _ Transfers out 215,650 225,079 234,920 245,191 255,912 267,101 278,780 290,969 303,691 316,969 Other Total expenditures 74,121,697 20,569,464 3,104,471 3,347,291 3,244,662 267,101 278,780 290,969 303,691 316,969 Ending fund balance 17,974,151 (31,102) (38.230) f25,7D9) 5,980 1.13$916 2,325,353 3,535,859 4,754.107 5.97!.472 Total requirements $ 92,095,848 $20,.536,362 $ 3,066,241 $ 3;321,582 $ 3,250.642 $ 1,402017 $ 2604.133 $ 1826,828 $ 5,057.798 $ 6,244.441 Days of expenditures In ending fund balance 89 (1) (4) (3) 1 1,552 3,047 4,438 5,718 6,830 Water Debt Service Fund Resources: Beginning fund balance $ 6,766,963 $ 10,573,816 $ 10,573,816 $ 10,691,767 $ 10,854,820 $ 11,020,765 $ 11,020,765 $ 11,020,765 $ 11,020,765 $ 11,020,765 Revenue: 47000 Interest earnings 36,542 57,099 57,099 57,736 58,616 59,512 59,512 59,512 59,512 59,512 ' 49001 Debt proceeds 3,806,833 - 117,951 163,053 165,945 0 0 0 0 0 49530 Transfer in from Water Fund 8,490,141 8469,5&4 10,429,485 10.M.152 10,756.216 10,758,020 10,757,320 10,758,120 10,755,320 10,756,145 Total revenue 12,333,515 8526,683 10,404,535 10,810,941 10,98D,776 IQ,817.532 10,816.832 IQ817,632 I0,814,8.32 10,815,657 Total resources $ 19,IOf7498 $ 19,100,498 $21,17"1 $21.502,708 $21,8354597 $ 21,838297 $ 21,837,597 1 21,&38,397 $21,835,597 $21,836,422 Requirements: Debt service Existing debt service $ 4,719,850 $ 4,719,850 $ 6,561,800 $ 6,560,050 $ 6,561,050 $ 6,563,750 $ 6,563,050 $ 6,563,850 $ 6,561,050 $ 6,561,875 New debt service 3,806,833 3,806,833 3,924,784 4,087,837 4,253,782 4,253,782 4,253,782 4,253,782 4,253,782 4,253,782 Total debt service 8,526,683 8,526,683 10,486,584 10,647,887 10,814,832 10,817,532 10,816,832 10,817,632 10,814,832 10,815,657 Ending fund balance 10,573,816' 10,573,816' 10,691,767' 10,854,820' 11,020,765' 11,020,765' 11,020,765' 11,020,765' 11,020,765' 11,020,765 Total requirements $ 19,100,498 $ 19,100,498 $ 21,178,351 $ 21,502,708 $ 21,835,597 $ 21,838,297 $ 21,837,597 $ 21,838,397 $ 21,835,597 $ 21,836,422 Days of expenditures In ending fund balance 453 453 372 372 372 372 372 372 372 372 o FCS GITVJ P City of Tigard River Terrace Funding Strategy September, 2014 page 31 Water SDC Fund 6/30/2015 6/30/2016 6/30/2017 6/30/2018 6/30/2019 6/30/2020 6/30/2021 6/30/2022 6/30/2023 6/30/2024 City of Tig-c-nd water UfiMy Budget Projected Projected Projected Projected Projected Projected Projected Projected Projected wator sec wird Resources: Beginning fund balance $ 2,860,840 $ 4,149,831 $ 5,066,575 $ 6,851,719 $ 8,926,597 $ 11,310,247 $ 13,793,190 $ 16,379,172 $ 19,072,081 $ 21,875,947 Revenue: 43300 System development charges SDO 693,446 894,335 1,757,785 2,037,879 2,335,446 2,421,867 2,511,499 2,604,461 2,700,877 2,800,877 43301 SDC reimbursement SDCr 925,359 - - _ 47000 Interest earnings 15,449 22409 27,360 36,999 48,2171 61,075 74,483 $5.448 102,989 i i8,130 Total revenue 1,634,254 916,744 1,785,145 2,074,878 2,383,650 2,482.943 2.585.982 2,692,909 2803.867 2,919,007 Total resources $ 4,495,094 $ 5,066,575 $ 6.851,719 $ 8,926.597 $ 11,310,247 $ 13,793,190 $ 16,379,172 $ 19,072,081 $ 21,875.947 $ 24,794;954 Requirements: Transfers out Transfers out to Water CIP fund $ 345,000 $ - $ - $ - $ - $ c $ - $ - $ Transfers out to other funds 263 Total transfers out 345,263 - - - _ _ _ Ending fund balance 4,149,831 5;066,575 6,851,719 8,926,597 11,310,247 13,793,190 16,379,172 19,072,081 21,875,947 24,794,954 Total requirements $ 4,840357 $ 5,066,575 $ 6,851,719 $ 8,926,597 $ 11,310,247 $ 13,793,190 $ 16,379,172 $ 19,072081 $ 21,875.947 $ 24,794,954 Rwenw Aaumpions Interest rate 0.547o 0.54% 0.547. 0.54% 0.54% 0.547 0.547. 0.54% 0.54% 0.54% Customer accounts: Customer accounts in existing service area 19,875 19,964 20,054 20,144 20,235 20326 20,417 20,509 20,601 20,694 Customer accounts in new service area 0 80 180 300 420 540 660 780 900 Total customer accounts 19,875 19,964 20,134 20,324 20,535 20,746 20,957 21,169 21,381 21,594 New customers 2,924 89 170 190 211 211 211 212 212 213 Customer account growth In existing service area 0.45% 0.45% 0.45% 0.45% 0.45% 0.45% 0.45% 0.45% 0.45% Total customer account growth 17.25% 0.45% 0.85% 0.94% 1.04% 1.03% 1.02% 1.01% 1.00% 0.99% Rate revenue per account,first half of fiscal year $ 499 $ 521 $ 526 $ 531 $ 536 $ 542 $ 547 $ 551 $ 554 $ 558 Rate revenue per account,second half of fiscal year $ 409 $ 413 $ 417 $ 421 $ 426 $ 430 $ 433 $ 435 $ 438 $ 439 Annual rate adjustment on January 1 4.28% 10_99� 0.9917 0 99% 0991; 0.66% 0.66% 0.667. 0-14% Share of revenue in first half of fiscal year 56.00% 56.007. 56.007. 56.00% 56.00% 56.00% 56.00% 56.00% 56.00% 56.00% Franchise fee as percentage of total rate revenue 2.81% 3.61% 3.61% 3.61% 3.61% 3.61% 3-61% 3.61% 3.61% 161% SDC revenue per new account $ 9,662 $ 10,000 $ 10,350 $ 10,712 $ 11,087 $ 11,475 $ 11,877 $ 12,292 $ 12,723 $ 13,168 �:; FCS GROUP City of Tigard River Terrace Funding Strategy September, 2014 page 32 Water Utility Fund Assumptions ::>FCS (]ROUP nluiion; 6/30/2015 6/30/2016 6/30/2017 6/30/2018 6/30/2019 6/30/2020 6/30/20221 6/30/2092 6/30/2023 6/30/2024 City of Tigard • Budget Projected Projected Projected Projected Projected Projected Projected Projected Projected Cost Assumptions Full-time equivalent(FTE)positions 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 Salaries per FTE $ 68,731 $ 71,970 $ 75,362 $ 78,914 $ 82,633 $ 86,527 $ 90,605 $ 94,874 $ 99,346 $ 104,027 Growth in salaries per FTE 10.52% 4.71% 4.71% 4.71% 4.71% 4.71% 4.71% 4.71% 4.71% 4.71% Benefits per HE $ 33,626 $ 35,308 $ 37,073 $ 38,927 $ 40,873 $ 42,917 $ 45,062 $ 47,316 $ 49,681 $ 52,165 Growth in benefits per FTE 4.47% 5.00% 5.00% 5.00% 5.00% 500% 5.00% 5.00% 5.00% 5.00% Annual escalation of materials and services 3.50% 3.50% 3-50% 3.50% 3.50% 350% 3.507 3.50% 3-50% 3.50% Annual escalation of capital outlay 3.50% 3.50% 3.507. 3.50% 3.507 3.50% 350% 3.50% 3.50% 3.50% Annual escalation of transfers 6.84% 4.37% 4.37% 4.37% 4.37% 4.37% 4.37% 4.37% 4.37% 4.37% Capital projects Projects for River Terrace: Pressure Reducing Value Design - $ $ $ - $ - $ $ $ - $ - 5 Pressure Reducing Valve Construction 204nch transmission mains in 410 zone(Design) 20-inch transmission mains in 410 zone(Construction) 16-inch transmission mains in 550 zone(Design) 16-inch transmission mains in 550 zone(Construction) - 3.0 MG Cach Reservoir Design 1,050,000 3.0 MG Cach Reservoir Construction 164nch transmission from reservoir to 550B 1,400 gpm(firm capacity)pump station - Total projects for River Terrace - - 1,050,000 - -Projects for existing service area 71906.047 20,344.385 2,869,551 2,052,100 2,988,750 Total capital projects $ 73,906,047 $ 20,344,385 $ 2,869,5.51 $ 3,102100 $ 2.988,750 S - $ - $ - $ - $ - Debt Issuance cost percentage 2.00% 2.00% 2.007 2.00% 2.00% 2.00% 2.00% 2.00% 2.00% 2.00% Interest rate 4.00% 4.107 4.20% 4.30% 4.40% 4.50% 4.50% 4.50% 4.50% 4.50% Term 20 20 20 20 20 20 20 20 20 20 Principal: Proceeds $ 46,894,542 $ $ 1,425,529 $ 1,952010 $ 1,967,930 $ 0 $ 0 $ 0 $ 0 $ 0 Issuance costs 1,034,722 31,500 43,165 43,548 0 0 0 0 0 Debt reserve 3,806,833 117,951 163,053 165,945 0 0 0 0 0 Total principal c 51.f36.097 5 $ 1,574.9$0 5 2.,138,728 $ 2,177,423 5 0 $ 0 5 0 b 0 S 0 Debt service coverage ratio(minimum 1.15) 1.17 1.18 1.17 1.16 1.15 1.16 1.17 1.17 1.18 1.17 •+:> FCS � 0tTU �T,