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Median Seasonal Flow (acre-feet) Median Seasonal Flow (acre-feet) 2,000 Williamson River July through September: Lowess and Mann-Kendall analyses applied to 1931 through 2012 1,800 1,600 1,400 1,200 1,000 800 600 400 200 0 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Median Flow Lowess Smooth Mann-Kendall Trend 3,500 Williamson River Water Year: Lowess and Mann-Kendall analyses applied to 1931 through 2012 3,000 2,500 2,000 1,500 1,000 500 0 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Median Flow Lowess Smooth Mann-Kendall Trend 559
Median Seasonal Flow (acre-feet) Median Seasonal Flow (acre-feet) 3,500 Williamson River October through February: Lowess and Mann-Kendall analyses applied to 1941 through 2012 3,000 2,500 2,000 1,500 1,000 500 0 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Median Flow Lowess Smooth Mann-Kendall Trend 8,000 Williamson River March through June: Lowess and Mann-Kendall analyses applied to 1941 through 2012 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Median Flow Lowess Smooth Mann-Kendall Trend 560
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National Marine Fisheries Service U
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7.4.5 LRS and SNS Population Dynami
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11.1.5 Critical Assumptions .......
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16 APPENDICIES ....................
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Table 8.2 UKL end-of-month elevatio
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LIST OF FIGURES Figure 3.1. The act
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Figure 11.17. Coho salmon fry habit
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ABBREVIATIONS AND ACRONYMS Abbrevia
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Abbreviation/Acronym YTEP WDFW WRIM
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In 2001, the Services issued BiOps
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Findings of Fact and Order of Deter
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proposed changes to the vegetation
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Figure 3.1. The action area for Rec
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4 PROPOSED ACTION Reclamation propo
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4.2 Element Two Operate the Project
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October 1 and March 1. The proposed
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Reclamation incorporated the 1981 t
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Provide Project irrigation deliveri
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Table 4.3. UKL fill rate adjustment
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Table 4.5. Calculation of fall/wint
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Flows below IGD are ultimately the
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The EWA, Project Supply, and UKL Re
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Table 4.8. Environmental Water Acco
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eleases somewhat on the ascending l
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fish disease, die off, entrainment,
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acre-feet when the Project Supply c
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Table 4.11. Monthly maximum Lower K
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4.2.4 Ramp-Down Rates at Iron Gate
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progresses and EWA volumes are upda
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O&M activities are carried out eith
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1. The A Canal has six headgates th
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Therefore, Reclamation proposes to
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coordinate with the NMFS to develop
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the confluence with Omogar Creek at
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though several major improvements t
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Sucker larvae transform into age-0
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units: (1) Clear Lake; (2) Tule Lak
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Figure 7.2. Adult spawning populati
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Table 7.1. Estimated LRS and SNS ad
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1905, Ch. 567, 33 Stat. 714). The P
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Figure 7.4 Modeled April through No
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7.9.2 Klamath Basin The Oregon Clim
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A change in mean precipitation rang
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Table 7.2 Impaired water bodies wit
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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
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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
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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
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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
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Small pulses of moderately turbid w
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Boulder faces in the deflector stru
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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
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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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Page 525 and 526: Week of Water Year 1998 1999 2000 2
Page 527 and 528: Water Year October November Decembe
Page 533 and 534: 16.3 Appendix C: Description of Res
Page 535 and 536: 4. Removal of Small Dams (permanent
Page 537 and 538: Information regarding consideration
Page 539 and 540: 9. Piping Ditches a. Project Descri
Page 541 and 542: . Site-Specific Restrictions Restri
Page 543 and 544: 6. Protection Measures The followin
Page 545 and 546: to enter or be placed where they co
Page 547 and 548: shall be distributed throughout the
Page 549 and 550: weed free straw, silt fences) are i
Page 551 and 552: the project is located, and compris
Page 553 and 554: 2. Post Construction Monitoring and
Page 555 and 556: Median Seasonal Flow (acre-feet) Me
Page 575: Median Seasonal Flow (acre-feet) Me
Page 591 and 592: Median Seasonal Net Inflow (acre-fe
Page 597 and 598: 16.5 Appendix E: Observed and Model
Page 599 and 600: Observed and modeled proposed actio
Page 601 and 602: Observed and modeled proposed actio
Page 603 and 604: 16.6 Appendix F: Analyzing the rela
Page 605 and 606: Table 1. Paired comparison of the c
Page 607: Table 3. The difference in the mean
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