5.4

Utilities Committee Meeting Date: September 12, 2012

To: Utilities Committee

From: Stan Woods, Senior Engineer, Utility Planning Department Marie Griggs, Public Involvement Division Manager, Engineering and Construction Department

Date: August 21, 2012

Subject: Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds and Proposed Engagement and Consultation Process

Recommendation:

That the GVWD Board direct staff to proceed with public engagement on the Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds as developed by the consultative committee and provide the results of this consultation when presenting the completed Plan for Board adoption.

1. PURPOSE

To advise the Board that the JWUP Consultative Committee has developed a consensus outcome and unanimously endorsed the final report. To receive Board approval to consult with the broader public on the Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds dated August 8, 2012 (Attachment 1).

2. CONTEXT

Development of the draft Water Use Plan follows the Provincial Water Use Plan Guidelines, and is about how the reservoirs are operated and how water is released from the reservoirs for different purposes (as examples: drinking water supply, environmental/fish flows and proposed hydropower generation). A key objective of the Joint Water Use Plan (JWUP) process is to explore whether and how hydropower generation from existing reservoirs can be accommodated within Metro Vancouver’s commitment to: continuing to supply clean, safe drinking water; protecting the environment and fish habitat; and adapting to climate change. Other interests such as recreation, culture and heritage, and safety have been reviewed within the planning process.

Metro Vancouver has established a process for developing the JWUP in accordance with the thirteen steps outlined in the provincial Water Use Plan Guidelines. The process integrates technical study and evaluation with structured decision-making and public consultation. Over the last 20 months, Metro Vancouver has been working with key interested parties through a Consultative Committee, to develop the key elements of a draft Joint Water Use Plan (JWUP) that reflects the unique characteristics of the Capilano and Seymour watersheds.

At a meeting on July 19th the JWUP Consultative Committee unanimously endorsed and fully supported the key elements of the draft Joint Water Use Plan. This report seeks Board approval to consult with the broader public on the proposed Key Elements of the draft JWUP detailed in Section 2.1.

2.1 Proposed Key Elements of the Draft JWUP

2.1.1 Proposed Capilano and Seymour Hydropower Projects As part of the water use planning process a hydropower consultant worked with Metro Vancouver staff to assess potential hydropower project options and proposed a hydropower project for Cleveland Dam with the following elements; new surface intake on the west side of Capilano Reservoir, with an underground tunnel and shaft connecting to an underground powerhouse discharging to the existing diversion tunnel that in turn discharges to the west side of the lower end of the Cleveland Dam plunge pool (see Attachment 1 for project layout). The proposed hydropower project for Seymour Falls Dam has the following elements; water for power generation would be diverted at the existing Howell-Bunger valves, with a new penstock routed along the downstream face of the dam and connecting to a surface powerhouse on the East Bank of the Seymour River that would discharge to a new tailrace channel that in turn discharges to the east side of the Seymour River (see Attachment 1 for project layout). The environmental design and operating aspects of the proposed hydropower projects are discussed in the next section.

2.1.2 Proposed Capilano and Seymour Reservoir Operation and Environmental/Fish Flow Releases

The Seymour and Capilano Reservoirs are normally full during the fall, winter and spring months. During these periods the reservoirs fill to their maximum storage capacity with large amounts of water spilling from each reservoir. The proposed hydropower projects are envisaged to make use of the existing dam infrastructure to produce electricity from water that would spill from the reservoirs. Energy generation would assume the 3rd priority of the reservoir flow regime after drinking water supply and environmental/fish flows, respectively.

Capilano Reservoir Given the above priorities, the proposed Capilano Reservior hydropower project would generally generate energy, in the summer, only if water was spilling from the reservoir. In the winter (November 1 to April 30) energy may be generated at reservoir elevations between full pool (145.9 m) and 4 meters down (141.9 m). The JWUP Consultative Committee has proposed increases to the minimum fish flow releases from Capilano Reservoir to the lower Capilano River. New water control facilities would be built in conjunction with the proposed hydropower project to enable the delivery of these increased fish flow releases. The proposed Fish Design Objectives and Criteria for the Capilano Power Project are detailed in Attachment 1. The proposed new minimum fish flow releases are as follows: • June 1 to November 30, releases vary from 0.57 cubic meters per second (cms) to 2.3 cms, depending on the level of Capilano Reservoir, the amount of reservoir spill, reservoir inflows, and Alpine Lake storage (see Attachment 1 for details); • December 1 to May 31, release of 1.2 cms (providing the Capilano Reservoir is maintained above 130m elevation).

Seymour Reservoir Energy generation would assume the 3rd priority of the reservoir flow regime after drinking water supply and environmental/fish flows, respectively. Consequently, the proposed Seymour Reservoir hydropower project would generally generate energy, in the summer, only if water was spilling from the reservoir. In the winter (November 1 to April 30), energy may be generated at reservoir elevations between full pool (212.9 m) and 1 meter down (211.9 m).

The JWUP Consultative Committee has proposed increases to the minimum fish flow releases from Seymour Reservoir to the lower Seymour River under most conditions. The proposed new minimum fish flow releases are as follows: • June 1 to November 30, releases vary from 0.7 cms to 2.8 cms, depending on the date, level of the Seymour Reservoir, and status of Alpine Lake storage (see Attachment 1 for details); • December 1 to May 31, release of 1.36 cms.

2.1.3 Proposed Monitoring and Communications Activities

As recommended in the Provincial Water Use Planning Guidelines, and based on what is typical of other water use plans adopted in other locations in British Columbia, the JWUP Consultative Committee has suggested a number of monitoring and communications activities as part of the JWUP. The following provides an overview of the activities that are common to the two watersheds: • monitoring and annual reporting of reservoir water levels, drinking water withdrawals, fish flow releases and hydropower withdrawals (when commissioned); • monitoring and annual reporting of river flows, at one location, in the lower Capilano River below Cleveland Dam and at one location in the lower Seymour River below Seymour Falls Dam along with analysis and reporting of the rate of flow changes (ramping); • assessments needed for the final design of the hydropower project and and/or studies related to the operation of the hydropower project; • operation of a JWUP monitoring committee to provide annual feedback on the monitoring results and, as appropriate, advice on unique watershed conditions. Some of the monitoring activities that are unique to the Capilano watersheds are outlined below.

Monitoring Activities Unique to Capilano Watershed

A flow monitoring station has been operated on the Capilano River above Capilano Reservoir since 1914. This station is funded by Metro Vancouver and the draft JWUP proposes that this hydrometric station continue to be operated on an ongoing basis. The Board has committed to a “trap and truck” program on the Capilano Reservoir to capture out-migrating Coho and Steelhead smolts and transport them around the Cleveland Dam. The program reduces the mortalities associated with smolts passing over the Cleveland Dam spillway. Associated with this “trap and truck” program, monitoring is done to enumerate the out-migrating smolts. Prior to construction of the new surface intake for the hydropower project the monitoring results will be used to optimize the design of a new smolt

capture facility associated with the new hydropower intake channel. After commissioning of the new smolt capture facilities the level of effort involved with the smolt monitoring program is expected to decrease. The JWUP Consultative Committee expects measurable improvements to fish habitat in the lower Capilano River once the proposed new fish flow releases are implemented, and has suggested the following monitoring for about two years prior, and up to five years after, the fish flow releases are changed: • water temperature monitoring; • biological response monitoring of status and trends in key fish species.

2.1.4 Proposed JWUP Implementation Schedule

The following provides an overview of the key activities that are proposed for the period after Board approval to submit the JWUP to the regulatory agencies, and prior to approval of the JWUP by the regulatory agencies (anticipated in the latter part of 2013 or 2014). The following are common to the two watersheds: • Continuing to monitor river flows in the lower Capilano and lower Seymour Rivers and making this flow data accessible to the public on a real time basis; • Providing publically accessible plans or forecasts of how releases from the two reservoirs may vary over time. After regulatory approval of the JWUP, the proposed changes to the fish flow releases from Seymour reservoir would be implemented, as these flows can be provided using existing facilities. For Capilano, as a new water control facility will have to be built in conjunction with the proposed hydropower project to enable the delivery of increased fish flow releases, the proposed new fish flow releases will be implemented after commissioning of the proposed hydropower facilities at Cleveland Dam, which is currently scheduled for completion by 2021. The JWUP Consultative Committee has suggested that ideally the review for this joint watershed plan should occur concurrently and about 15 years after JWUP approval. However, if the Capilano Hydropower project is delayed, than the review period may be separated for the two watersheds and the review of the Capilano component of the JWUP initiated 10 years after the hydropower facilities at Cleveland Dam are commissioned.

2.2 Expected Benefits of Implementing the Draft JWUP

If the proposed draft JWUP were approved by the Board and the regulatory agencies, once fully implemented, it would provide the following expected benefits relative to the existing situation: • Metro Vancouver would have increased regulatory approval and public support for its activities in the two watersheds; • the capacity to reliably supply drinking water would be maintained at current levels, in the June to November period, even in dry years with low reservoir inflows; • improved passage around Cleveland Dam of out-migrating Steelhead trout and Coho salmon smolts; • improved water temperatures in the Capilano River below Cleveland Dam to enhance aquatic growth; • improved environmental/fish flows to the Capilano River below Cleveland Dam under most conditions; • improved ability to control the rate of change in water flow from the Capilano Reservoir (ramping rates) to reduce the risk of stranding fish in the lower Capilano River; • improved environmental/fish flows to the Seymour River below Seymour Falls Dam under most conditions. • reduction of greenhouse gases by generation of clean electricity from the water that would otherwise spill from the existing Capilano and Seymour Reservoirs; • a net reduction in operating costs for the drinking water system as the proposed hydropower projects on Capilano and Seymour appear to be economically feasible with a positive net present value; • significantly improved flows for angling, kayaking and canoeing in the Capilano River below Cleveland Dam; • improved flows for angling and kayaking in the Seymour River below Seymour Falls Dam.

2.3 Expected Costs of Implementing the Draft JWUP

The costs for Metro Vancouver to monitor and report compliance with the draft JWUP would be higher than the existing situation. However, these costs are considered appropriate when compared to the monitoring costs of other water use plans adopted in other locations in British Columbia and considering the gained benefit of hydropower. As Metro Vancouver proceeds further on the engineering design of the proposed hydropower projects there will be specific assessments needed to minimize/mitigate the potential impacts of the construction and operation of these projects. These assessment costs are normally funded from within the specific projects budgets and will include the need to design a new surface water intake to improve passage around Cleveland Dam for out- migrating smolts. The draft JWUP maintains the capacity to reliably supply drinking water under the stressed conditions that are used to design the drinking water system (e.g., the June to November period, of dry years with low reservoir inflows). However, in the December to May period of years with extremely low inflows, the higher fish flow releases in the draft JWUP would only slightly reduce the amount of drinking water that could be reliably supplied from the Capilano and Seymour watersheds. Analysis shows that this change in fish flows from December to May still maintains drinking water supply at or above needed levels.

2.4 JWUP Public Engagement and Consultation

2.4.1 Completed Engagement and Consultation As outlined in the provincial Water Use Plan Guidelines, Metro Vancouver’s engagement and consultation program for the JWUP process includes outreach to the following audiences: government agencies and ministries, the public, potentially affected First Nations, and Metro Vancouver members. To meaningfully engage these stakeholders, Metro Vancouver completed the following key activities in the initial stages of the process:

. In September 2010, a JWUP Steering Committee was formed, which consists of applicable regulatory agencies and ministries with a mandate to provide advice to Metro Vancouver on the content and process for developing the JWUP. . In October 2010, Metro Vancouver publicly announced the JWUP process, and held the first public meeting.

. In January 2011, following Metro Vancouver’s request for expressions of interest and public advertising in October 2010, the JWUP Consultative Committee (CC) was formed with a mandate to identify and explore water use options and collaboratively develop recommendations for consideration by Metro Vancouver.

Following the first JWUP public meeting, individuals interested in volunteering on the JWUP CC submitted expressions of interest, and subsequently were asked to submit an application form. In December 2010, the JWUP Steering Committee selected the members of the JWUP CC based on a set of selection criteria. The CC has representatives from government agencies; community, recreational and environmental associations; First Nations; and relevant Metro Vancouver municipalities. The members and affiliations of the JWUP CC are found in Attachment 2.

A Terms of Reference guided the process and deliberations of the CC. The CC represented a broad spectrum of interests affected by the operations of the Capilano and Seymour water control facilitates, such as drinking water, fisheries, wildlife, environment, recreation and culture. The CC held 4 meetings in 2011 and 2012 respectively: January 19th, February 24th, March 31st, July 14th, 2011, and February 2nd, March 15th, May 31st, and July 19th, 2012.

The mandate of the JWUP CC was to identify and explore water use options and alternatives, such as hydropower generation, to current operating practices. They have developed recommendations for consideration by Metro Vancouver when preparing the JWUP for operation of the Capilano and Seymour water control facilities.

2.4.2 Proposed JWUP Public Consultation and Engagement The first JWUP public meeting was attended by approximately 125 people, and was integral to the formation of the CC. The CC has met its mandate, and developed the Key Elements of the Draft JWUP for the Capilano and Seymour Watersheds. The proposed engagement is a public review of the Key Elements of the Draft JWUP. A second public meeting, in October 2012, will seek input on the Key Elements of the Draft JWUP, and present information on the results of the CC deliberations, and the final plan approval process. Key Engagement Groups The public, potentially affected First Nations, Metro Vancouver members, and government agencies and ministries will be notified regarding the public meeting, as well as the deadline for receipt of input. The following communications activities will be used to notify stakeholders: Public

• Placement of advertisements in region-wide and local newspapers; • Distribution of notification flyers via e-mail, associations represented on the CC, and mail to individuals and organizations; and • Posting of materials on the Metro Vancouver JWUP website.

First Nations • Metro Vancouver will send letters to the 52 potentially affected First Nations and tribal councils/associations whose traditional territory lies within, overlaps with, or who have interest in territory within the subject area of the JWUP.

Metro Vancouver Members • Metro Vancouver will send memoranda to inform the following committees regarding the public consultation on the draft: Municipal Water Conservation Coordinators, Regional Engineers Advisory Committee (REAC) and the REAC Water Subcommittee.

Government Agencies and Ministries • Applicable government agencies and ministries are kept informed and provide feedback on the development of the plan by Metro Vancouver via the JWUP Steering Committee and CC.

2.5 Next Steps One of the key deliverables in the Board’s 2012 Action Plan is to complete the JWUP for the Capilano and Seymour Watersheds this year. To meet this time line, work continues on completing the draft JWUP and the associated documents that are needed as part of a complete JWUP submission to the Provincial Comptroller of Water Rights. The JWUP submission package will include the following documents: • a complete draft Joint Water Use Plan; • a report documenting the work of the consultative committee and their endorsed JWUP package; • project definition reports for the proposed Capilano and Seymour Hydropower projects along with water licence applications for the Hydropower projects. While work continues on completing these documents, this report recommends the Board approve consultation with the public on the key elements of the draft JWUP. To meet the Board’s schedule for the JWUP, submission of the complete JWUP to the Board for approval, will need to occur in November and hence it is recommend that consultation on the key elements of the draft JWUP occur during October.

3. ALTERNATIVES

The Board may:

1. Direct staff to consult with the public on the Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds and provide the results of this consultation when presenting the complete Draft Joint Water Use Plan for the Capilano and Seymour Watersheds for Board adoption. or 2. Refer back to staff with direction on required revisions.

4. CONCLUSION

The JWUP Consultative Committee, consisting of Metro Vancouver, provincial and federal agencies, municipalities with lands adjoining the watersheds, First Nations, and other stakeholders, has unanimously endorsed the key elements of the draft JWUP for the Capilano and Seymour Watersheds. This report recommends the Board approve consultation with the public on the key elements of the draft JWUP and that the results of this consultation be provided to the Board when the complete draft JWUP is presented to the Board for adoption.

ATTACHMENTS:

1. Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds dated August 4, 2012 (6415143)

2. JWUP Consultative Committee Membership List (4900848)

6453822 ATTACHMENT 1

Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds - August 8, 2012

Over the last 20 months, Metro Vancouver has been working with key interested parties, through a consultative committee, to develop the key elements of a draft Joint Water Use Plan (JWUP). At a meeting on July 19, 2012, the JWUP Consultative Committee unanimously endorsed and fully supported the key elements of the draft Joint Water Use Plan outlined in the following sections: 1 Proposed Capilano and Seymour Hydropower Projects 2 Proposed Reservoir Operation and Environmental/Fish Flow Releases 3 Proposed Monitoring and Communications Activities 4 Proposed Implementation Schedule

1 Proposed Capilano and Seymour Hydropower Projects The Seymour and Capilano Reservoirs are normally full during the fall, winter and spring months. During these periods the reservoirs fill to their maximum capacity with large amounts of water spilling from each reservoir. As part of the joint water use planning process for the Capilano and Seymour watersheds, Metro Vancouver is proposing the Capilano and Seymour hydropower projects. These potential hydropower projects are envisaged to make use of the existing dam infrastructure to produce electricity from water that overflows from the Reservoirs. Energy generation would assume the 3rd priority of the reservoir flow regime after drinking water supply and environmental/fish flows. The energy generation facilities would operate using flow consistent with the first two priorities. As part of the water use planning process a hydropower consultant worked with Metro Vancouver staff to assess potential hydropower project options. The proposed hydropower project for Cleveland Dam is defined in Section 1.1 below and the proposed hydropower project on Seymour Falls Dam is defined in Section 1.2 below. Please note some aspects of the proposed hydropower projects are also discussed in Sections 2 to 4. Based on analyses conducted to date the proposed hydropower projects appear to be sustainable and economically feasible. Consequently, Waterpower Project Development Plans for the proposed hydropower projects at Cleveland Dam and Seymour Falls Dam are being prepared. The Waterpower Project Development Plans are to be suitable for inclusion along with water license applications to the Ministry of Environment-Comptroller of Water Rights as part of the complete Joint Water Use Plan submission package.

1.1 Proposed Capilano Hydropower Project The proposed Capilano hydropower project has the following elements; new surface intake on the west side of Capilano Reservoir, with an underground tunnel and shaft connecting to an underground powerhouse discharging to the existing diversion tunnel that in turn discharges to the west side of the lower end of the Cleveland Dam plunge pool (see project description and layout below). All facilities would be located on lands owned by the Greater Vancouver Water District (GVWD).

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Description of Capilano Hydropower Project ITEM DESCRIPTION General Concept to avoid significant modifications to the existing Dam Concept infrastructure. Majority of the work is done underground and requires significant amount of tunneling. Intake This project includes installation of a new near-surface intake with the invert of the approach channel at an approximate elevation of 130 m. Water is drawn from near the surface of the reservoir and the maximum withdrawal rate for power generation is about 25 cms. A dual-flow travelling fish-exclusion screen is included in the project. The screen would eliminate entrainment of fish into the intake and turbine. The design and construction of the screens is very similar to the screens currently used at the drinking water intake. Location of the intake in an excavated channel with accessible sides permits smolt capture for downstream passage. As part of the project, new water control facilities will be built to enable, in conjunction with existing facilities, the delivery of the proposed new JWUP fish flow releases. These facilities will be designed to provide appropriate ramping rates and fish flow releases to the river whether or not the power project is operating through the widest possible range of lake elevations and down to 130m elevation if practical. Hydraulic A combination of high level tunnel and vertical shaft is planned to carry Conduit for the water to the powerhouse. The high level tunnel under the gravity Hydropower dam section is assumed to be lined and grouted to mitigate dam safety flows concerns. To carry internal pressure of water the vertical shaft is also assumed to be lined and grouted. Powerhouse Underground powerhouse with a preliminary plan for two Francis units. / Tailrace The placement of the powerhouse is relatively flexible and allows for changes if required after geotechnical investigations. Connection to the existing elevator shaft is desired to minimize costs associated with providing access. The tunnel from the elevator to the new underground powerhouse can be aligned to avoid moving of existing HB valves. The tailrace from the underground powerhouse will discharge to the existing diversion tunnel that in turn discharges to the west side of the lower end of the Cleveland Dam plunge pool Switchyard Step-up transformers are not required as generators’ will be generating not required at 12.47 kV. Busbars/buried cables will be used to carry the power to the existing Metro Vancouver 69 kV substation located to the west of Cleveland Dam. Total Annual System modeling for the JWUP Consultative Committee estimates the Energy average annual energy generation at about 57 Giga Watt hours per year.

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Conceptual Layout of Capilano Hydropower Project

1.1.1 Proposed Fish Design Objectives and Criteria for Capilano Power Project (endorsed by JWUP Consultative Committee) The proposed new power project on the Capilano River has the potential to partially restore natural Coho and Steelhead productivity from the watershed above and below the Cleveland Dam. It is proposed that this facility will have a screened surface intake and underground powerhouse on the west bank of the Capilano River. It has the potential to overcome some of the inherent fish issues arising from the 1954 Cleveland Dam, namely: a) Provision of safe and unimpeded downstream passage of Coho and Steelhead smolts from April 15th to June 15th each year avoiding as much as practicable mortalities associated with fish passing over the spillway (these being field study estimated at over 70%); b) Provision for enhanced minimum flow capacity and fine control of ramping rates particularly below 4 CMS at all times of the year with a “fish valve”; and c) Provision for near surface withdrawal of water from Capilano Lake into the Capilano River to offset very cold water temperatures from the existing mechanical pump tailrace which provides a base fish flow release of 0.57 cms.

Capilano Hydropower Design Objectives and Criteria 1. The new facility must prevent all fish from entering the intake for the power project at all times of the year through easily cleaned screens that do not impinge fish on the screens. (Standard specifications for travelling screens would apply.) 2. There needs to be an effective smolt collection system with attraction water provided by gravity flow through the power project and/or fish valve bypass that will be operational under all reservoir levels from approximately April 15th to June 15th each year. This system should

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employ sufficient surface currents and guide nets (leads) to help direct migrating Steelhead and Coho smolts to the collection facility and discourage them from backing out or going over the spillway if it is operating. The design and orientation of the intake, leads and collection facility should be optimized in this regard. (The current lake traps and rotary screw traps operated by MVRD for collecting Coho and Steelhead smolts have improved the situation, but are not effective enough to rebuild natural populations particularly of Steelhead where trapping efficiency has been approximately 10 %.) 3. Once captured, smolts can be reintroduced to the Capilano River below Cleveland Dam either by a direct safe downstream passage facility that discourages subsequent predation and provides for enumeration and sampling capability or they need to be safely held in flow- through collection box (es), enumerated, sampled/tagged as required and transported below the dam to one or more release points on at least a daily basis and preferably more frequently during peak migration periods. 4. The spillway should not be operated during the smolt collection period unless necessary to pass flows beyond the capacity of the new power project and fish valve under peak flow conditions. 5. The power project must have a bypass “fish valve” that can provide for appropriate ramping rates and fish flow releases to the river whether or not the power project is operating through the widest possible range of lake elevations. 6. It is suggested that at least one small turbine (or equivalent facilities) be explored to generate power from the fish flow releases on a year round basis. It could potentially replace the energy requirements of the existing water to water hydraulic pumping system to high elevation reservoirs on the north shore. (The tailrace from this system currently provides the base fish flows of 0.57 CMS and has colder water for extended periods than could be provided by the new surface intake.) 7. The power project intake channel and the intake itself should be designed to provide improved water temperatures downstream, relative to historic operation, when lake conditions permit. (The optimal water temperatures for salmonids during the growing season are in the range of 10 to 15 degrees C.)

1.2 Proposed Seymour Hydropower Project The proposed hydropower project on Seymour Falls Dam has the following elements; water for power generation would be diverted at existing Howell-Bunger valves, with a new penstock routed along the downstream face of the dam and connecting to a surface powerhouse on East Bank of the Seymour River that would discharge to a new tailrace channel that in turn discharges to the east side of the Seymour River (see project description and layout below).

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Description of Seymour Hydropower Project ITEM DESCRIPTION General Water for power generation would be diverted at existing Howell-Bunger Concept valves to a surface powerhouse on East Bank of the Seymour River. Intake The intake is located on the face of the dam. Water for power generation is diverted at the Howell-Bunger (HB) valves’ intake and the maximum withdrawal rate for power generation is about 15 cms. A two stage intake tower is envisaged as the Trashrack at the HB valve inlet will need to be upgraded to screen out smaller debris (50 – 100 mm clear spacing). Trash removal equipment will be required. Underwater construction will be required as this is the lowest point of the reservoir. Water diverted for power generation would be screened with a dual-flow travelling fish-exclusion screen. The design and construction of the screens is very similar to the screens currently used at the drinking water intake. A separate high-flow opening would be designed for operation of the HB valves. The two stage tower would connect to the opening through the dam at the HB valves’ location. This also requires relocation of the HB valves to enable connection for the penstock take- off. Roof to be extended above to protect the HB valves from spill flows. Hydraulic Penstock is routed along the downstream face of the dam and is Conduit for protected with concrete against spillway flows and debris impact. The Hydropower penstock would transition to buried penstock prior to entering the flows powerhouse. Powerhouse Surface powerhouse on the east bank. An access road to the / Tailrace powerhouse location is needed from the existing road on the East side of the Seymour River. Switchyard A surface switchyard with a step-up transformer is needed on the East side of the River near the powerhouse. An overhead or buried transmission line will be used to carry the power to the existing Metro Vancouver Seymour-Capilano Filtration Plant. Opportunities to reduce the eventual costs of the power-line by through possible synergizes with installation of Seymour Main #5 (North) from Seymour Dam to the Filter Plant will be explored. Total Annual System modeling for the JWUP Consultative Committee estimates the Energy average annual energy generation at about 7.2 Giga Watt hours per year.

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Conceptual Layout of Seymour Hydropower Project

2 Proposed Reservoir Operation and Environmental/Fish Flow Releases

The Seymour and Capilano Reservoirs are normally full during the fall, winter and spring months. During these periods the reservoirs fill to their maximum storage capacity with large amounts of water spilling from each reservoir. The proposed hydropower projects are envisaged to make use of the existing dam infrastructure to produce electricity from water that would otherwise spill from the Reservoirs. Energy generation would assume the 3rd priority of the reservoir flow regime after drinking water supply and environmental/fish flows.

Capilano Reservoir Operation and Fish Flow Releases

Given the above priorities, the proposed Capilano Reservoir hydropower project would generally operate as follows: • May 1 to October 31, energy would be generated from water that would otherwise spill from the reservoir; • November 1 to April 30, energy may be generated at reservoir elevations between full pool (145.9 m) and 4 meters down (141.9 m). The JWUP Consultative Committee has suggested increases to the minimum fish flow releases from Capilano Reservoir to the lower Capilano River under most conditions (JWUP consultative committee, alternative 3E). However, new water control facilities will have to be built in conjunction with the proposed hydropower project to enable the delivery of these new fish flow releases. When undertaking unusual maintenance or other unusual or emergency conditions minimum fish flows may be reduced to 0.57 cms if required. Fish flow releases above 0.57 cms, may be released at Reservoir elevations above 130m according to the June 1 to November 30 table provided below, and during the winter (Dec 1 to May 31) period when lake levels are above 130m.

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Capilano - Minimum Dam Releases during the period June 1 June 15 July 1 July 15

Abundant Water Qmin = 2.3cms Qmin = 2.3cms Qmin = 2.3cms Qmin = 2.3cms Conditions Criteria / Threshold If by June 1st: If by June 15th: If by July 1st: If by July 15th: • Lake level is > • Lake level is > • Lake level is @ • Lake level is @ full (145.89m) and (145.89m) and full pool pool (145.89m) and • Spilling >10cms • Spilling >10cms (145.89m) and • Spilling >2 cms • Spilling >10cms

Average Water Qmin = 1.2cms Qmin = 1.2cms Qmin = 1.2cms Qmin = 1.2cms Conditions Criteria Between Wet and Dry water condition thresholds

Drought Conditions Qmin = 0.57cms Qmin = 0.57cms Qmin = 0.57cms Qmin = 0.57cms Criteria / Threshold If by June 1st: If by June 15th: If by July 1st: If by July 15th: • Lake level is less • Lake level is less • Lake level is less • Lake level is less than 145.0m than 145.0m than 145.0m than 143.0m Aug 1 Aug 15 Sept 1 Sept 15

Abundant Water Qmin = 2.3cms Qmin = 2.3cms Qmin = 2.3cms Qmin = 2.3cms Conditions Criteria / Threshold If by Aug 1st: If by Aug 15th: If by Sep 1st: If by Sept 15th: • Lake level is • Lake level is • Lake level is • Lake level is >143.5m and >142.0m >140m >138m • Inflows to lake >12cms (excl Alpine releases)

Average Water Qmin = 1.2cms Qmin = 1.2cms Qmin = 1.2cms Qmin = 1.2cms Conditions Criteria Between Wet and Dry water condition thresholds

Drought Conditions Qmin = 0.57cms Qmin = 0.57cms Qmin = 0.57cms Qmin = 0.57cms Criteria / Threshold If by Aug 1st: If by Aug 15th: If by Sep 1st: If by Sep 15th: • Lake level is • Lake level is • Lake level is • Lake level is <139.0m <135.0m <130m <130m and • Alpine storage has been released Oct 1 Oct 15 Nov 1 Nov 15

Abundant Water Qmin = 2.3cms Qmin = 2.3cms Qmin = 2.3cms Qmin = 2.3cms Conditions Criteria / Threshold If by Oct 1st: If by Oct 15th: If by Nov 1st: If by Nov 15th: • Lake level is • Lake level is • Lake level is • Lake level is >136m >134m >136m >138m

Average Water Qmin = 1.2cms Qmin = 1.2cms Qmin = 1.2cms Qmin = 1.2cms Conditions Criteria Between Wet and Dry water condition thresholds

Drought Conditions Qmin = 0.57cms Qmin = 0.57cms Qmin = 0.57cms Qmin = 0.57cms Criteria / Threshold If by Oct 1st: If by Oct 15th: If by Nov 1st: If by Nov 15th: • Lake level is • Lake level is • Lake level is • Lake level is <130m and <130m and <130m and <130m and • Alpine storage has • Alpine storage has • Alpine storage has • Alpine storage has been released been released been released been released

Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds – August 8, 2012 Page 8 of 11

During the December 1 to May 31 period, the new Capilano minimum fish flow release would be 1.2 cms, providing that the water level in Capilano Reservoir is above 130m.

Seymour Reservoir Operation and Fish Flow Releases

As discussed above, energy generation would assume the 3rd priority of the reservoir flow regime after drinking water supply and environmental/fish flows. Consequently, the proposed Seymour Reservoir hydropower project would generally operate as follows: • May 1 to October 31, energy would be generated from water that would otherwise spill from the reservoir; • November 1 to April 30, energy may be generated at reservoir elevations between winter full pool (212.9 m) and 1 meter down (211.9 m). The JWUP Consultative Committee has suggested increases to the minimum fish flow releases from Seymour Reservoir to the lower Seymour River under most conditions (JWUP consultative committee, alternative 4D). Minimum fish flow releases, in the June 1 to November 30 period, will be according to the table provided below. During the December 1 to May 31 period the new Seymour minimum fish flow release would be 1.36 cms. When undertaking unusual maintenance or other unusual or emergency conditions minimum fish flows may be reduced to 0.57 cms if required.

Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds – August 8, 2012 Page 9 of 11

Seymour - Minimum Dam Releases during the period June 1 June 15 July 1 July 15

Abundant Water Qmin = 1.36cms Qmin = 1.36cms Qmin = 1.4cms Qmin = 1.4cms Conditions Criteria / Threshold

Average Water Qmin = 1.36cms Qmin = 1.36cms Qmin = 1.4cms Qmin = 1.4cms Conditions Criteria Between Wet and Dry water condition thresholds

Impending Drought Qmin = 1.1cms Qmin = 1.1cms Qmin = 1.1cms Qmin = 1.1cms Conditions Criteria / Threshold If by June 1st: If by June 15th: If by July 1st: If by July 15th: Lake level <213m Lake level is <214m Lake level is < 213m Lake level is <211m

Drought Conditions Qmin = 0.7cms Qmin = 0.7cms Qmin = 0.7cms Qmin = 0.7cms Criteria / Threshold If by June 1st: If by June 15th: If by July 1st: If by July 15th: Lake level < 212m Lake level is <213m Lake level <212m Lake level is <210m Aug 1 Aug 15 Sept 1 Sept 15

Abundant Water Qmin = 2.8cms Qmin = 2.8cms Qmin = 2.8cms Qmin = 2.8cms Conditions Criteria / Threshold If by Aug 1st: If by Aug 15th: If by Sep 1st: If by Sept 15th: Lake level is >213.8m Lake level is >213.4m Lake level is >213m Lake level is >212m

Average Water Qmin = 1.4cms Qmin = 1.4cms Qmin = 1.4cms Qmin = 1.4cms Conditions Criteria Between Wet and Dry water condition thresholds

Impending Drought Qmin = 1.1cms Qmin = 1.1cms Qmin = 1.1cms Qmin = 1.1cms Conditions Criteria / Threshold If by Aug 1st: If by Aug 15th: If by Sep 1st: If by Sep 15th: Lake level is <208m Lake level is <206m Lake level is <204 and Lake level is <204 and Alpine storage Alpine storage released released

Drought Conditions Qmin = 0.7cms Qmin = 0.7cms Qmin = 0.7cms Qmin = 0.7cms Criteria / Threshold If by Aug 1st: If by Aug 15th: If by Sep 1st: If by Sep 15th: Lake level is <207m Lake level is <205m Lake level is <203 and Lake level is <203 and Alpine storage Alpine storage released released Oct 1 Oct 15 Nov 1 Nov 15

Abundant Water Qmin = 2.8cms Qmin = 2.8cms Qmin = 2.8cms Qmin = 2.8cms Conditions Criteria / Threshold If by Oct 1st: If by Oct 15th: If by Nov 1st: If by Nov 15th: Lake level is >211m Lake level is >210m Lake level is >210m Lake level is >212m

Average Water Qmin = 1.4cms Qmin = 1.4cms Qmin = 1.36cms Qmin = 1.36cms Conditions Criteria Between Wet and Dry water condition thresholds

Impending Drought Qmin = 1.1cms Qmin = 1.1cms Qmin = 1.1cms Qmin = 1.1cms Conditions Criteria / Threshold If by Oct 1st: If by Oct 15th: If by Nov 1st: If by Nov 15th: Lake level is <204 and Lake level is <204 and Lake level is <204 and Lake level is <206 and Alpine storage released Alpine storage Alpine storage Alpine storage released released released

Drought Conditions Qmin = 0.7cms Qmin = 0.7cms Qmin = 0.7cms Qmin = 0.7cms Criteria / Threshold If by Oct 1st: If by Oct 15th: If by Nov 1st: If by Nov 15th: Lake level is <203 and Lake level is <203 and Lake level is <203 and Lake level is <205 and Alpine storage released Alpine storage Alpine storage Alpine storage released released released

Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds – August 8, 2012 Page 10 of 11

3 Proposed Monitoring and Communications Activities

As recommended in the Provincial Water Use Planning Guidelines, and based on what is typical of other water use plans adopted in other locations in British Columbia, the JWUP Consultative Committee has suggested a number of monitoring and communications activities as part of the JWUP. The following provides an overview of the activities that are common to the two watersheds: • monitoring and annual reporting of reservoir water levels, drinking water withdrawals, fish flow releases and hydropower withdrawals (when commissioned); • monitoring and annual reporting of river flows, at one location, in the lower Capilano River below Cleveland Dam and at one location in the lower Seymour River below Seymour Falls Dam along with analysis and reporting of the rate of flow changes (ramping); • assessments needed for the final design of a hydropower project and and/or studies related to the operation of the hydropower project; • operation of a JWUP monitoring committee to provide annual feedback on the monitoring results and, as appropriate, advice on unique watershed conditions. Some of the monitoring activities that are unique to the Capilano watersheds are outlined below.

Monitoring Activities Unique to Capilano Watershed A flow monitoring station has been operated on the Capilano River above Capilano Reservoir since 1914. In recent years this station has been funded by Metro Vancouver and the draft JWUP proposes that this hydrometric station be operated on an ongoing basis. The Board has previously committed to a “trap and truck” program on Capilano Reservoir to capture out-migrating Coho and Steelhead smolts and transport them around Cleveland Dam. This program reduces the mortalities associated with smolts passing over the Cleveland Dam spillway. Associated with this “trap and truck” program, monitoring is done to enumerate the out-migrating smolts. Prior to construction of the new surface intake for the hydropower project the monitoring results will be used to optimize the design of the new smolt capture facilities associated with the new hydropower intake channel. After commissioning of the new smolt capture facilities the level of effort involved with the smolt monitoring program is expected to decrease. The JWUP Consultative Committee expects measurable improvements to fish habitat in the lower Capilano River once the proposed new fish flow releases are implemented, and has suggested the following monitoring for about two years prior, and up to five years after, the fish flow releases are changed: • water temperature monitoring; • biological response monitoring of status and trends in key fish species.

Key Elements of the Draft Joint Water Use Plan for the Capilano and Seymour Watersheds – August 8, 2012 Page 11 of 11

4 Proposed JWUP Implementation Schedule

The following provides an overview of the key activities that are proposed for the period after Board approval to submit the JWUP to the regulatory agencies, and prior to approval of the JWUP by the regulatory agencies (anticipated in the latter part of 2013 or 2014). The following are common to the two watersheds: • Continuing to monitor river flows in the lower Capilano and lower Seymour Rivers and making this flow data accessible to the public on a real time basis; • Providing publically accessible plans or forecasts of how releases from the two reservoirs may vary over time.

After regulatory approval of the JWUP, the proposed changes to the fish flow releases from Seymour reservoir would be implemented, as these flows can be provided using existing facilities. For Capilano, as new water control facilities will have to be built in conjunction with the proposed hydropower project to enable the delivery of increased fish flow releases, the proposed new fish flow releases will be implemented after commissioning of the proposed hydropower facilities at Cleveland Dam, which are currently scheduled for 2021. The JWUP Consultative Committee has suggested that ideally the review for this joint watershed plan should occur concurrently and about 15 years after JWUP approval. However, if the Capilano Hydropower project is delayed, than the review period may be separated for the two watersheds and the review of the Capilano component of the JWUP initiated 10 years after the hydropower facilities at Cleveland Dam are commissioned.

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ATTACHMENT 2

Joint Water Use Plan for the Seymour and Capilano Watersheds Consultative Committee Members

Public Groups

Beaver Canoe Club and Recreational Canoeing Association of British Columbia - Ellen Hong Ellen is a lawyer who currently sits on the executive board of the Beaver Canoe Club – which offers skills clinics on the Seymour River and offers education for paddlers. The Recreational Canoeing Association of BC provides certification and safety standards for canoeing and is involved in projects on the Seymour River including habitat, paddling and access enhancements, consultation on Large Woody Debris, flow gauge installation, bridge works and has some involvement on the Capilano River.

British Columbia Federation of Drift Fishers – Eric Carlisle Eric is a professional writer, avid fisherman of both the Capilano and Seymour Rivers and director of the B.C. Federation of Drift Fishers. The Federation of Drift Fishers strives to be the voice of the river angler.

Lynnmour South Inter-River Community Association – Norman Daniel Norm has an elementary and secondary school teaching background and is a member of his local community association. Norm is also an active member of the Seymour- Capilano Water Utility Projects Community Monitoring and Advisory Committee (CMAC).

Seymour Salmonid Society – Brian Smith Brian is a fish and wildlife biologist who has worked with the Seymour Salmonid Society for over 11 years and is currently manager of the Seymour Fish Hatchery. The Seymour Salmonid Society operates the Seymour River Fish Hatchery and Education Centre.

Steelhead Society of British Columbia - Poul Bech Poul has a forestry and fisheries background and is a director with the Steelhead Society of British Columbia. The Steelhead Society of B.C. aims to protect, enhance and restore wild salmon and steelhead habitat.

Vancouver Kayak Club – Tom Hoskin Tom is a biologist who is actively involved in North Shore river issues and is the secretary of the Vancouver Kayak Club. The Kayak Club is an organization of whitewater kayaking enthusiasts who organise trips, training and education for paddlers in the Lower Mainland area.

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First Nation/Government/Agency

Department of Fisheries and Oceans (DFO) - Corino Salomi, Area Manager, Oceans, Habitat & Enhancement Branch, Lower Fraser Area

District of North Vancouver - Fiona Dercole, Manager, Public Safety Section alternate Michelle Weston

District of West Vancouver - John McMahon, Manager of Utilities, Engineering and Transportation

Living Rivers Georgia Basin and Vancouver Island – Bill Cafferata, Chair, Partnership and Steering Committee. Forester and Retired Chair of the Forest Practices Board

Metro Vancouver – Albert van Roodselaar, Manager, Utility Planning Department

Metro Vancouver – Stan Woods, Senior Engineer, Facilities Planning, Utility Planning Department

Ministry of Environment (MoE) – Greg Wilson, Fisheries Biologist and Project Manager, Fish and Wildlife Section alternate Duane Jesson, Ministry of Forests, Lands, Natural Resources Operations

Squamish Nation – Chief Bill Williams, Lead Negotiator Aboriginal Rights and Title alternates Randall Lewis and Tim O’Hara