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Table 4.4 Net accretion below Link River Dam adjustment factor. October November December January February Net_ accrete (cfs) Accrete _adjust Net_ accrete (cfs) Accrete_ adjust Net_ accrete (cfs) Accrete_ adjust Net_ accrete (cfs) Accrete_ adjust Net_ accrete (cfs) Accrete_ adjust -58 1.2 43 1.2 60 1.2 140 1.0 303 1.0 198 1.2 163 1.2 171 1.2 258 1.0 354 1.0 397 1.0 377 1.0 342 1.0 410 1.0 525 1.0 510 1.0 494 1.0 ≥ 415 0 ≥ 473 0 ≥ 589 0 ≥ 585 0.4 ≥ 566 0.4 “Net_accrete” is the value of accretions between Link River Dam and Iron Gate Dam. “Accrete_adjust” is the multiplier applied to the Link River Dam release target. 4.2.3.1.4 Link River Dam Target Releases Calculation of releases at Link River Dam is based on the adjustments described above and the month of the year, as shown in Table 4.5. 21
Table 4.5. Calculation of fall/winter Link River Dam target releases. Condition Equation October through November 15 November 16 through 30, Upper Klamath Lake_cum_inf_ind < 0.3 (dry) November 16 through 30, Upper Klamath Lake_cum_inf_ind > 0.3 (wet) December through February, Upper Klamath Lake_cum_inf_ind < 0.3 (dry) December through February, Upper Klamath Lake_cum_inf_ind > 0.3 (wet) (Will_prop * Will_Riv_inf -1 * Accrete_adjust) + OctNov_augment (Will_prop * Will_Riv_inf -1 * Fill_rate_adjust * Accrete_adjust) + OctNov_augment (Will_prop * Will_Riv_inf -1 * Fill_rate_adjust) + OctNov_augment Will_prop * Will_Riv_inf -1 * Fill_rate_adjust * Accrete_adjust Will_prop * Will_Riv_inf -1 * Fill_rate_adjust “Upper Klamath Lake_cum_inf_ind” is the UKL cumulative inflow index. “Will_prop” is the proportion of yesterday’s Williamson River flow targeted for release from Link River Dam. “Will_Riv_inf -1 ” is the Williamson River average flow cubic feet per second the previous day. “Accrete_adjust” is an adjustment to the Link River Dam release based on net accretions between Link River Dam and Iron Gate Dam. “OctNov_augment” is based on the volume, if any, of the EWA that was carried over from the previous spring/summer season. The carryover volume is distributed during October and November. “Fill_rate_adjust” changes the proportion of the Williamson River flow intended for release at Link River Dam from November 16 through February to account for the fill trajectory of UKL. The fall/winter management steps and Link River Dam release factors are summarized in Table 4.6. 22
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: Table 4.3. UKL fill rate adjustment
Page 41 and 42: Flows below IGD are ultimately the
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
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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,
Page 467 and 468:
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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