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Table 4.6. Fall/winter water management summary. Date Range October 1 through November 15 Condition All Common Adjustment Factors Variable Adjustment Factors Accretion Adjustment EWA Carryover Augmentation Accretion Adjustment November 16 through 30 December 1 through February 28 or 29 Dry Average to Wet Dry Average to Wet Williamson River Proportion Williamson River Flow Yesterday Fill Rate Adjustment EWA Carryover Augmentation Fill Rate Adjustment EWA carryover augmentation Accretion Adjustment Fill Rate Adjustment Fill Rate Adjustment During fall/winter operations, a daily average Link River Dam target release will be calculated based on the above steps and equations. The daily average Link River Dam release will be translated into a daily IGD flow target based on (a) accretions from one week previously for the reach between Link River Dam and Keno Dam, and (b) real-time estimates of accretions between Keno Dam and IGD. Management operations are intended to predict flows at IGD approximately 1 week into the future or, stated differently, with a lead time of approximately 1 week. Therefore, IGD target flows are proposed to be implemented approximately 1 week after flows are observed in the Williamson River. One week between observed flows at the Williamson River gage and when the flows occur at IGD is approximately the travel time for water to flow from the Williamson River gage to IGD under natural hydrologic conditions. The actual transit time will vary based on hydrologic conditions, magnitude of flow, and PacifiCorp’s reservoir and dam management operations. Assuming approximately 1 week transit time allows Reclamation, other agencies, stakeholders, and PacifiCorp the ability to coordinate on projected flows below Link River Dam. In addition, Reclamation will use Williamson River inflow and weather forecasts to estimate likely Link River Dam and IGD flows for an additional week, resulting in a total of 2 weeks of projected flows. The additional 1 week of Link River Dam and IGD flow projection is intended to provide further advanced planning opportunities for resource managers and PacifiCorp. The result of the real-time planning operations described here will be a series of rolling 1- and 2- week projections of releases at Link River Dam and flow at IGD throughout the fall/winter period. Note that the rolling 1- and 2-week projections of releases at Link River Dam and flow at IGD will also be followed during the spring/summer. 23
Flows below IGD are ultimately the result of the daily Link River Dam target releases, Link River Dam to IGD accretions, and the management of the Klamath Hydroelectric Project by PacifiCorp. Accretions between Link River Dam and Keno Dam are calculated based on flow measurements at the two dams and volumes of water diverted from or to the Klamath River from Klamath Project canals. Accretions between Keno Dam and IGD are based on flow measurements at the two dams, and estimated tributary and groundwater discharge to the Klamath River. Therefore, Reclamation and PacifiCorp will estimate total accretions and add them to the Link River Dam target releases on a near real-time basis. PacifiCorp will be provided flexibility in managing accretions. However, Reclamation, the NMFS, and the USFWS expect that accretions will be passed through the Klamath Hydroelectric Project in a manner consistent with the timing and magnitude of the accretions. PacifiCorp committed to coordinate with Reclamation to meet the flow-related requirements described in the 2010 NMFS BiOp on Project operations or future consultations between NMFS and Reclamation on Project operations during the Incidental Take Permit term as one of the conservation actions in PacifiCorp’s Coho Habitat Conservation Plan (PacifiCorp 2012a) and resulting Incidental Take Permit. PacifiCorp has successfully coordinated with Reclamation to implement the requirements associated with the 2010 NMFS BiOp for the last 3 years, and Reclamation expects this close coordination to continue during implementation of this proposed action. Emergencies may arise that cause PacifiCorp to deviate from the IGD release target. Emergencies may include, but are not limited to, flood prevention or facility and regional electrical service emergencies. Reclamation will coordinate closely with PacifiCorp should the need to deviate from the IGD flow target be identified. Such emergencies occur infrequently, and are not expected to significantly influence flows downstream from IGD. Once the Link River Dam and IGD daily target releases are determined, the UKL refill rate is evaluated to calculate the fall/winter water available for delivery to Area 2 of the Project and the Lower Klamath NWR. The availability of water for delivery to the Project or Lower Klamath NWR is evaluated on a daily basis. If UKL is expected to reach an elevation of 4,142.80 ft (1,262.73 m) by March 1, water is made available for delivery to Area 2, Lower Klamath NWR, or both. The timing of requested water deliveries to Area 2 and the Lower Klamath NWR varies from year to year during the fall/winter depending on weather and hydrologic conditions. Therefore, the volume of water determined to be available each day that could have been diverted but was not, accumulates in a fall/winter Project account. Water is delivered to Area 2, Lower Klamath NWR, or both, if demand exists later in the season. Water earmarked for Project or Lower Klamath NWR delivery is not included in the UKL volume/elevation values used to determine the Link River Dam target release. At the end of February, any water not delivered to the Project or Lower Klamath NWR remains in UKL and becomes part of the overall volume available for use as EWA, for the Project, or Lower Klamath NWR during the spring/summer operations period. In October and November, there is overlap between the spring/summer and fall/winter operations because Area 1 of the Project and/or the Lower Klamath NWR diverts a portion of the spring/summer Project Supply during these months. In addition, a portion of the EWA can be 24
Page 1 and 2: National Marine Fisheries Service U
Page 3 and 4: 7.4.5 LRS and SNS Population Dynami
Page 5 and 6: 11.1.5 Critical Assumptions .......
Page 7 and 8: 16 APPENDICIES ....................
Page 9 and 10: Table 8.2 UKL end-of-month elevatio
Page 11 and 12: LIST OF FIGURES Figure 3.1. The act
Page 13 and 14: Figure 11.17. Coho salmon fry habit
Page 15 and 16: ABBREVIATIONS AND ACRONYMS Abbrevia
Page 17 and 18: Abbreviation/Acronym YTEP WDFW WRIM
Page 19 and 20: In 2001, the Services issued BiOps
Page 21 and 22: Findings of Fact and Order of Deter
Page 23 and 24: proposed changes to the vegetation
Page 25 and 26: Figure 3.1. The action area for Rec
Page 27 and 28: 4 PROPOSED ACTION Reclamation propo
Page 29 and 30: 4.2 Element Two Operate the Project
Page 31 and 32: October 1 and March 1. The proposed
Page 33 and 34: Reclamation incorporated the 1981 t
Page 35 and 36: Provide Project irrigation deliveri
Page 37 and 38: Table 4.3. UKL fill rate adjustment
Page 39: Table 4.5. Calculation of fall/wint
Page 43 and 44: The EWA, Project Supply, and UKL Re
Page 45 and 46: Table 4.8. Environmental Water Acco
Page 47 and 48: eleases somewhat on the ascending l
Page 49 and 50: fish disease, die off, entrainment,
Page 51 and 52: acre-feet when the Project Supply c
Page 53 and 54: Table 4.11. Monthly maximum Lower K
Page 55 and 56: 4.2.4 Ramp-Down Rates at Iron Gate
Page 57 and 58: progresses and EWA volumes are upda
Page 59 and 60: O&M activities are carried out eith
Page 61 and 62: 1. The A Canal has six headgates th
Page 63 and 64: Therefore, Reclamation proposes to
Page 65 and 66: coordinate with the NMFS to develop
Page 67 and 68: the confluence with Omogar Creek at
Page 69 and 70: though several major improvements t
Page 71 and 72: Sucker larvae transform into age-0
Page 73 and 74: units: (1) Clear Lake; (2) Tule Lak
Page 75 and 76: Figure 7.2. Adult spawning populati
Page 77 and 78: Table 7.1. Estimated LRS and SNS ad
Page 79 and 80: 1905, Ch. 567, 33 Stat. 714). The P
Page 81 and 82: Figure 7.4 Modeled April through No
Page 83 and 84: 7.9.2 Klamath Basin The Oregon Clim
Page 85 and 86: A change in mean precipitation rang
Page 87 and 88: Table 7.2 Impaired water bodies wit
Page 89 and 90: Table 7.3 Seasonal comparisons of p
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ammonia that is lethal to 50 percen
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Table 7.4 Estimated external phosph
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examination of juvenile suckers fro
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Evaluation of baseline hydrology in
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2012 1931 through 2012 12.6% 0.24 5
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The overall water year trend (Table
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Figure 7.7 Sprague River trends, wa
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Figure 7.9 Sprague River trends, wa
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Figure 7.12 Williamson River trends
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Figure 7.14 UKL trends, water years
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Figure 7.17 UKL: net inflow departu
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7.10.3.3 Competition and Predation
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By late July, surviving larval suck
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Threat Nature of Threat Life Stage
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2011) and increased adult spawning
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Based on the best available informa
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contrast, water levels began 1.5 ft
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evaporation and seepage estimated a
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prolonged low oxygen conditions if
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The April through September 4,034.6
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8 EFFECTS OF THE ACTION ON LOST RIV
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Although the volume of Project wate
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than 1 m), and fitting one or more
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Figure 8.3. UKL elevations at the e
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Services and Reclamation will deter
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For cumulative net inflow values be
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Figure 8.8. UKL elevations at the e
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Figure 8.10. UKL elevations at the
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Figure 8.12. UKL elevations at the
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natural and man-caused changes in i
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Table 8.1 UKL end-of-month surface
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UKL. Based on best available inform
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larvae in UKL. Annual production of
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Table 8.5 UKL end-of-month elevatio
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Based on our review of the literatu
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into the Pelican Bay water quality
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We assume that UKL surface elevatio
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vary by several orders of magnitude
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survival rates, we know that some o
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populations, and contains the large
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8.3.5.1 Effects to Adult Sucker Spa
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Table 8.8 Clear Lake surface elevat
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occur, especially in the west lobe.
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Table 8.9 End of the month surface
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8.3.7.4 Effects of Entrainment Loss
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The source of the sediment is unkno
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period when they migrate upstream t
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limited LRS and SNS persistence in
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term and localized and because fish
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8.5.1 Canal Salvage Reclamation pro
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high predation rates and failure of
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include the Klamath Basin Rangeland
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Figure 9.1 Designated CHUs for the
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These are discussed in greater deta
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The proposed action will have no ef
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No other spawning habitat exists be
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consulted on. Current monitoring da
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proposed action and this PCE suppor
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Because of a multi-decade lack of r
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Adverse effects of the proposed act
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that juvenile survival is most like
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elocation effort in Lake Ewauna to
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LRS and SNS population resiliency o
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stratum 4 (Interior Klamath) in whi
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Pacific salmonids Oncorhynchus spp.
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scenario, actions and elements of t
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flow prescriptions should mimic pro
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11.2.1 Current Condition of Critica
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11.2.2 Factors Affecting SONCC Coho
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e disoriented or displaced downstre
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enhancement, and rehabilitative act
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Water Temperature Sedimentation Org
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Figure 11.1 Longitudinal and season
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functioning floodplains that fail t
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downstream of IGD, (2) enhance coho
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few local ranchers and water distri
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in some tributaries, access to and
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11.3.7 Summary of Critical Habitat
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these two time periods, the effects
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consists of approximately 29,000 ac
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The PacifiCorp habitat conservation
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IGD, or used in constructed habitat
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estoration, watershed planning, sal
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Table 11.4. Modeled suspended sedim
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parasites Ceratomyxa shasta (causes
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that become infected is estimated t
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where snow water equivalent is proj
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minimizing disease risks, the detai
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Figure 11.4. Proposed action, histo
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Figure 11.6. Proposed action weekly
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Figure 11.9. Regression between EWA
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Figure 11.11. Proposed action and o
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Figure 11.12. Number of days per wa
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Figure 11.14. Monthly coefficient o
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IGD. The proposed action modeled da
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The results from Table 11.7 indicat
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likely to increase the quantity of
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habitat decreases between the Shast
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Table 11.9. Daily average mainstem
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Table 11.10. Daily average mainstem
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5% 3336 13176 27664 26168 30946 237
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The proposed action results in agri
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Figure 11.21. Monthly mean of daily
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Riparian restoration projects will
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expected to be typical riparian spe
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Table 11.13. Annual percent of proj
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esource needs as they grow, and 3)
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11.5.2 Klamath River Basin Adjudica
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coho salmon within the Klamath Rive
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aspects of a natural flow regime th
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element of coho salmon critical hab
Page 313 and 314:
12.1.1.1 Risk Analyses for Endanger
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ESU DIVERSITY STRATA POPULATIONS IN
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eproduction, and distribution. The
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Figure 12.2. Historic population st
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the average ratio of IP-km to total
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Although long-term data on coho sal
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1980 1981 1982 1983 1984 1985 1986
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maintain viable abundances in many
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12.2.5.5 Viability Summary Though p
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coastal currents and upwelling, kno
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12.2.6.2 Marine Derived Nutrients M
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fisheries south of Cape Falcon, Ore
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12.3 Environmental Baseline of Coho
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water temperatures up to 19 ºC in
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some coho salmon smolts may stop mi
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threshold, all Klamath River coho s
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abundance threshold (Table 12.3). T
Page 347 and 348:
mainstem Klamath and Trinity rivers
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Although there are risks to Klamath
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activities are generally beneficial
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12.4 Effects to Individuals The pro
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12.4.1.2 Response 12.4.1.2.1 Adults
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(2012) believes is representative o
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genotype II density of 5 spores/L w
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flows provide a limit to the increa
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polychaete and sediment disturbance
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which will likely result in a relat
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etween Trees of Heaven (RM 172) and
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action. Reclamation estimated that
Page 371 and 372:
Based on literature, increased comp
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Table 12.6. Summary of risks result
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most juveniles. Stream flow diversi
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at most fish relocation sites, base
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higher, the minimally increased sed
Page 381 and 382:
Small pulses of moderately turbid w
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Boulder faces in the deflector stru
Page 385 and 386:
conditions may fail if those condit
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Adverse effects of the proposed act
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Potential Stressor Habitat Reductio
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Potential Stressor Elevated water t
Page 393 and 394:
12.6.2 Effects of fitness consequen
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13 INCIDENTAL TAKE STATEMENT Sectio
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Table 13.1 Summary of maximum annua
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in fewer larvae and juveniles, and
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Table 13.2 Estimated annual maximum
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1.2.1.8. Incidental Take Caused by
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characteristics of aquatic species,
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Table 13.5 Expected annual Environm
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Cause of Incidental Take Habitat Re
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Clear Lake, Gerber Reservoir, and T
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This term and condition is requirin
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13.4 Mandatory Monitoring and Repor
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Required hydrologic monitoring incl
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Table 13.7. Summary of LRS and SNS
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T&C or Mandatory Monitoring Mandato
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Table 13.9 Summary of reporting and
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Table 13.10 Summary of meetings req
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the above QA/QC procedures describe
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Barry, P.M., E.C. Janney, D.A. Hewi
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Burdick, S.M. and J. Rasmussen. 201
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Dunsmoor, L., L. Basdekas, B. Wood,
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Garen, D. 2011, Upper Klamath Basin
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Janney, E.C., B.S. Hayes, D.A. Hewi
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Laenen, A., and A.P. LeTourneau. 19
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Miller, R.R., and G.R. Smith. 1981.
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Perkins, D.L., and G.G. Scoppettone
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(Deltistes luxatus) in Tule and Cle
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Terwilliger, M. 2006. Physical habi
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USBR [U.S. Bureau of Reclamation].
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Williams, J.E. 2000. Chapter 13. Th
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Arthington, A.H., S.E. Bunn, N.L. P
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Beeman, J., S. Juhnke, G. Stutzer a
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Brommer, J.E. 2000. The evolution o
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Department of the Army Regional Gen
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Chilcote, M. W. 2003. Relationship
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Dunsmoor LK, and Huntington CW. 200
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Foott, J.S., R. Stone, E. Wiseman,
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Habera, J.W., R.J. Strange, B.D. Ca
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Hemstreet, T. 2013. Electronic mail
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Jordan, M. S. 2012. Hydraulic predi
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Kostow, K. E., A. R. Marshall and S
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MacFarlane, R. B., S. Hayes, and B.
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Moyle, P. B. 2002. Inland Fishes of
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PacifiCorp Klamath Hydroelectric Pr
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Oregon Department of Environmental
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Puckridge, J. T., F. Sheldon, K. F.
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Ring, T.E. and B. Watson. 1999. Eff
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Sommer, T. R., M. L. Nobriga, W. C.
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Taylor, R. 1991. A review of local
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USFWS [U. S. Fish and Wildlife Serv
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Ward G, and Armstrong N. 2010. Asse
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Winker, K., J. H. Rappole, and M. A
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77 FR 476. National Marine Fisherie
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UKL Elevation (feet) Active Storage
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16.2 Appendix B: Elevation Flow Dat
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490
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Week of Water Year 1981 1982 1983 1
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Water Year October November Decembe
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16.3 Appendix C: Description of Res
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4. Removal of Small Dams (permanent
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Information regarding consideration
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9. Piping Ditches a. Project Descri
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. Site-Specific Restrictions Restri
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6. Protection Measures The followin
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to enter or be placed where they co
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shall be distributed throughout the
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weed free straw, silt fences) are i
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the project is located, and compris
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2. Post Construction Monitoring and
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Median Seasonal Flow (acre-feet) Me
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Median Seasonal Net Inflow (acre-fe
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16.5 Appendix E: Observed and Model
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Observed and modeled proposed actio
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Observed and modeled proposed actio
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16.6 Appendix F: Analyzing the rela
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Table 1. Paired comparison of the c
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Table 3. The difference in the mean
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