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Although entrainment of LRS and SNS is likely to occur at other Project diversions under the proposed action, the only facility where entrainment has been measured is at Gerber Dam, where Reclamation estimates that 250 juvenile SNS could be entrained annually (USBR 2012). Although no entrainment estimates are available for Clear Lake Dam, we assume entrainment of larval suckers is occurring there because the dam is downstream of the Willow Creek mouth where larval suckers enter the lake. However, suckers larger than approximately 35 mm total length are not likely entrained because of the small size of the openings in the fish screen. Entrainment rates at these facilities are likely much lower than at the Link River Dam because there are fewer reproducing adults present in these areas when compared to UKL. Therefore at these other facilities, we assumed that entrainment take would be 10 percent of that which is estimated to be occurring at the Link River Dam where entrainment was measured. The basis for that assumption is the following: (1) the combined total adult sucker populations in Clear Lake, Gerber Reservoir, Tule Lake, Keno Reservoir, and Lost River is approximately half of those in UKL; (2) larvae would be present earlier in the season and for a shorter period in Gerber Reservoir and Clear Lake in comparison to UKL because of the earlier run-off of snow-melt in the Lost River sub-basin; (3) flows from Clear Lake and Gerber Reservoir Dams are much less than at the Link River Dam when larvae are present because of the small demand for irrigation on the east side of the Project at that time; (4) flows at the Link River Dam in the spring are high due to the downstream needs of coho salmon; and (5) water quality is better in Clear Lake and Gerber Reservoir in comparison to UKL, so there would be less of an effect of water quality on entrainment rates at Clear Lake and Gerber Reservoir, as explained in the Effects of the Action (section 8). Based on this, we estimate that total annual entrainment take as harm as a result of the implementation of the proposed action by all Project water-management facilities other than at the A Canal and Link River Dam equals up to 2,700 larvae, 60 juveniles, and 10 adults. The numbers of LRS and SNS annually harassed by these facilities is estimated to be up to 134,000 larvae, 3,000 juveniles, and 10 adults (Table 13.2). Note that we estimated that the numbers of adults harassed and harmed per year would be up to 10, which is the smallest number that likely could be detected. 13.2.1.5 Entrainment Estimates for the Entire Project Based on the analysis presented above, we estimate that the total annual entrainment take of LRS and SNS at all Project diversions, as a result of implementing the proposed action, could be up to 350,672 harmed and 1.88 million harassed; most of these will be larvae (Table 13.2). 383
Table 13.2 Estimated annual maximum entrainment take of LRS and SNS at Project facilities as a result of implementing the proposed action. Location and Life Stage Harm Harass A Canal Larvae 320,000 320,000 Juveniles 500 50,000 Adults 1 80 Link River Dam Larvae 26,800 1,340,000 Juveniles 600 29,400 Adults 1 40 Other Project Facilities Larvae 2,700 134,000 Juveniles 60 3,000 Adults 10 10 Totals 350,672 1,876,530 13.2.1.6 Incidental Take Caused by Seasonal Reductions in Habitat due to Water Management and Reduced Instream Flows below Clear Lake and Gerber Reservoir Dams and in Project Canals following the Irrigation Season In our effects analysis, we determined that annual reductions in habitat resulting from water diversions could adversely affect age-0 juvenile suckers in UKL. Due to the annual habitat reductions occurring in UKL during August and September, it is reasonable to assume age-0 juvenile suckers could be more vulnerable to predation, be swept down the lake by currents and entrained at the A Canal or Link River Dam, or be displaced into areas of poor water quality or low food abundance. Seasonal flow reductions downstream from Clear Lake, Gerber Reservoir, and in Project canals that are drained at the end of the irrigation season could also adversely affect any age-0 juvenile suckers present. Additionally, low water levels and reduced habitat availability as a result of water diversions during infrequent severe droughts could also negatively impact age 1+ juveniles and adult suckers in Clear Lake. 384
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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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Page 355 and 356: 12.4.1.2 Response 12.4.1.2.1 Adults
Page 357 and 358: (2012) believes is representative o
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Page 361 and 362: flows provide a limit to the increa
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Page 367 and 368: etween Trees of Heaven (RM 172) and
Page 369 and 370: action. Reclamation estimated that
Page 371 and 372: Based on literature, increased comp
Page 373 and 374: Table 12.6. Summary of risks result
Page 375 and 376: most juveniles. Stream flow diversi
Page 377 and 378: at most fish relocation sites, base
Page 379 and 380: higher, the minimally increased sed
Page 381 and 382: Small pulses of moderately turbid w
Page 383 and 384: Boulder faces in the deflector stru
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Page 387 and 388: Adverse effects of the proposed act
Page 389 and 390: Potential Stressor Habitat Reductio
Page 391 and 392: Potential Stressor Elevated water t
Page 393 and 394: 12.6.2 Effects of fitness consequen
Page 395 and 396: 13 INCIDENTAL TAKE STATEMENT Sectio
Page 397 and 398: Table 13.1 Summary of maximum annua
Page 399: in fewer larvae and juveniles, and
Page 403 and 404: 1.2.1.8. Incidental Take Caused by
Page 405 and 406: characteristics of aquatic species,
Page 407 and 408: Table 13.5 Expected annual Environm
Page 409 and 410: Cause of Incidental Take Habitat Re
Page 411 and 412: Clear Lake, Gerber Reservoir, and T
Page 413 and 414: This term and condition is requirin
Page 415 and 416: 13.4 Mandatory Monitoring and Repor
Page 417 and 418: Required hydrologic monitoring incl
Page 419 and 420: Table 13.7. Summary of LRS and SNS
Page 421 and 422: T&C or Mandatory Monitoring Mandato
Page 423 and 424: Table 13.9 Summary of reporting and
Page 425 and 426: Table 13.10 Summary of meetings req
Page 427 and 428: the above QA/QC procedures describe
Page 429 and 430: Barry, P.M., E.C. Janney, D.A. Hewi
Page 431 and 432: Burdick, S.M. and J. Rasmussen. 201
Page 433 and 434: Dunsmoor, L., L. Basdekas, B. Wood,
Page 435 and 436: Garen, D. 2011, Upper Klamath Basin
Page 437 and 438: Janney, E.C., B.S. Hayes, D.A. Hewi
Page 439 and 440: Laenen, A., and A.P. LeTourneau. 19
Page 441 and 442: Miller, R.R., and G.R. Smith. 1981.
Page 443 and 444: Perkins, D.L., and G.G. Scoppettone
Page 445 and 446: (Deltistes luxatus) in Tule and Cle
Page 447 and 448: Terwilliger, M. 2006. Physical habi
Page 449 and 450: 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,
Page 467 and 468:
Habera, J.W., R.J. Strange, B.D. Ca
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Hemstreet, T. 2013. Electronic mail
Page 471 and 472:
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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