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HomeMy Public PortalAbout2.0 Executive Summary Revised 2.0 EXECUTIVE SUMMARY 2.0 EXECUTIVE SUMMARY Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-1 This section provides a summary of the two sections of the Coldstream Specific Plan DEIR being recirculated for public review. Table 2.0-1 displays a summary of impacts and proposed mitigation measures that would avoid or minimize the potential impacts of the proposed project. In the table, the level of significance is indicated both before and after the implementation of each mitigation measure. Changes are provided in revision marks (underline for new text and strikeout for deleted text). For detailed discussion of all project-level mitigation measures, refer to Section 4.8, Biological and Natural Resources, and Section 4.9, Historic and Cultural Resources, of this Partially Revised Draft EIR. 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-2 TABLE 2.0-1 PROJECT IMPACTS AND PROPOSED MITIGATION MEASURES Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance 4.8 Biological and Natural Resources Impact 4.8.1 Implementation of the proposed project could result in direct and indirect loss of habitat and individuals of endangered, threatened, rare, proposed, and candidate status, as well as plant species identified by the California Native Plant Society with a rating of List 1A or 1B (i.e., rare, threatened, or endangered plants). PS MM 4.8.1a If ground-disturbing activities and vegetation removal are scheduled to occur within two years of the currently valid rare plant surveys (June 2011), no additional rare plant surveys are required. If the rare plant surveys are no longer valid due to a lapse in time of project construction commencement (including phasing), rare plant surveys are warranted as follows: Prior to any vegetation removal or ground-disturbing activities for each phase of development, focused rare plant surveys shall be conducted to determine the presence of special-status plant species with potential to occur in the impact areas. Surveys shall be conducted in accordance with Guidelines for Assessing the Effects of Proposed Projects on Rare, Threatened, and Endangered Plants and Natural Communities (CDFG, 2000). These guidelines require rare plant surveys to be conducted at the proper time of year when rare or endangered species are both “evident” and identifiable. Field surveys shall be scheduled to coincide with known blooming periods and/or during periods of physiological development that are necessary to identify the plant species of concern. If no special-status plant species are found, then the project will not have any impacts to the species and no additional mitigation measures are necessary. If special-status plant species are located within temporary impact areas, then additional mitigation is necessary (see below). If any of the species are LS 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-3 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance found on-site and cannot be avoided (such as the known locations of Donner Pass buckwheat), the Town shall consult with the USFWS and/or CDFG, as applicable, to determine appropriate avoidance and mitigation for special-status plants, which may include, but is not limited to the following measures: If special-status plants are identified and will not be directly impacted, protective fencing would be required to ensure that the plant or plants are not destroyed, crushed, or damaged during construction. A buffer zone will be established and the area will be fenced off. Signs will be posted to publicize the sensitive nature of the area. For special-status plants that will be directly impacted, efforts shall be made to salvage portions of the habitat or plant populations that will be lost as a result of implementation of the proposed project by transplanting the plants that would be adversely affected by the proposed project for planting in a new area in appropriate habitat. The transplantation area will be located in an area that would support that species and be preserved in perpetuity. A propagation program shall be developed for the salvage and transfer of rare, threatened, or endangered plant populations from the site before the initiation of construction activities. Permits may be required from the CDFG or USFWS, which will ensure that certified biologists are involved in the propagation and transport of rare, threatened, or endangered plant species. (Note: Propagation methods for the salvaged plant population must be developed on a case-by-case basis and must include the involvement of local conservation 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-4 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance easements/preserves/open space, where applicable). The propagation and transfer of individual plant species must be performed at the correct time of year and successfully completed before the project’s construction activities eliminate or disturb the plants and habitats of concern. The viability of the plant population shall be maintained. Timing/Implementation: During the appropriate flowering period and prior to grading activities Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division MM 4.8.1b The project applicant shall have a qualified biologist prepare a Sierra Nevada and mountain yellow-legged frog habitat suitability assessment on the Cold Creek bridge site and for any construction within a stream or open water habitat area. The assessment shall include a detailed analysis of the habitat conditions present on site and shall survey stream conditions 500 feet upstream and downstream from the proposed stream crossing. If the results of the habitat suitability survey indicate that potential habitat for this species is not present within 500 feet up- or downstream of the crossing, no further analysis is required; however, if potential habitat for this species is identified during the assessment, the project proponent shall perform the following: • Conduct pre-construction surveys for the Sierra Nevada and mountain yellow-legged frogs during the breeding season by a qualified biologist. If frogs are identified in the construction area, the biologist shall contact CDFG and/or USFWS regarding the proper 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-5 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance methods of moving the species to an appropriate off-site location prior to the onset of construction activities at the waterways. • Monitor construction activities within waterways. • Conduct training session for all construction personnel regarding the Sierra Nevada and mountain yellow-legged frogs. Provide a description of the species and its habitat as well as materials on the species in order to assist construction personnel in identifying the species in the field. • Revegetate and recontour channels that would maintain habitat for the Sierra Nevada and mountain yellow-legged frogs. Timing/Implementation: During the breeding season for Sierra Nevada and mountain yellow-legged frogs and prior to construction activities surrounding project water features Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division MM 4.8.1c For trees that must be removed to construct each phase of the proposed project, the project applicant will target the removal of trees and other vegetation to occur outside the nesting season between September 1 and February 28. If trees cannot be removed outside the nesting season, pre- construction surveys will be conducted prior to vegetation removal to verify the absence of active raptor nests within 500 feet of construction activities. 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-6 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance If construction or tree removal is proposed during the breeding/nesting season for local avian species (typically March 1 through August 31), a focused survey for active nests of raptors and migratory birds within and in the vicinity of (no less than 500 feet outside project boundaries, where possible) the project construction activities shall be conducted by a qualified biologist prior to each phase of development. Surveys shall include searches of all potential nest sites, including snags, shrubs, ground, buildings, and cliff faces. If no active nests are found, vegetation removal or construction activities may proceed. If an active nest is located during pre-construction surveys, USFWS and/or CDFG (as appropriate) shall be notified regarding the status of the nest. Furthermore, construction activities shall be restricted as necessary to avoid disturbance of the nest until it is abandoned or the biologist deems disturbance potential to be minimal. Restrictions may include establishment of exclusion zones (no ingress of personnel or equipment at a minimum radius of 500 feet around an active bald eagle or osprey nest, 250 feet around an active other raptor nest, and 100 feet around an active migratory bird nest) or alteration of the construction schedule. No action is necessary if no active nests are found or if construction will occur during the non-breeding season (generally September 1 through February 28). Timing/Implementation: Fourteen days prior to ground disturbance or tree removal for each phase of development Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-7 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance MM 4.8.1d If the willow flycatcher surveys are no longer valid due to a lapse in time of project construction commencement (including phasing), willow flycatcher surveys are warranted as follows: Willow flycatcher protocol surveys shall be conducted prior to each phase of construction in suitable habitat according to the Willow Flycatcher Survey Protocol for California (Bombay et al., 2003). If no willow flycatchers are detected, no further mitigation is necessary. If willow flycatchers are detected, then the Town shall consult with the USFWS and/or CDFG, as applicable, to determine appropriate avoidance and mitigation for willow flycatcher, which may include, but is not limited to, the following measures: Construction activities will be limited to outside the nesting season (typically September 1 and February 28) so as to avoid impacts associated with nesting bird species. Impacts to suitable willow flycatcher habitat from the proposed project will be mitigated through mitigation measures MM 4.8.3a through 4.8.3c for riparian habitat. Timing/Implementation: Prior to approval of the proposed Coldstream Specific Plan Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division MM 4.8.1e A qualified biologist shall conduct a pre- construction survey for active dens, lodges, or burrows no more than two weeks prior to any grading or ground-breaking activity. The survey will identify dens, lodges, or burrows for special-status mammals including Sierra Nevada red fox, California wolverine, Sierra Nevada mountain beaver, Sierra Nevada snowshoe hare, western white-tailed jackrabbit, and American badger. If active den/burrow sites for special-status mammals 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-8 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance are identified, a mitigation plan shall be developed in consultation with the California Department of Fish and Game and/or U.S. Fish and Wildlife Service to ensure no animals are killed and that den/burrow sites are properly addressed. Measures may include, but are not limited to, enforcement of buffer zones restricting construction activities near den sites, and capture and relocation of the species. If active dens/burrows are present, they shall be monitored by a qualified biologist(s)/monitor(s) throughout construction to ensure no additional losses. If no active dens/burrows are found, then no further mitigation is necessary. Timing/Implementation: Two weeks prior to construction and/or grading activities Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division MM 4.8.1f Project site trails shall include signage that requires bear-proof trash receptacles. Timing/Implementation: As part of project site trail development Enforcement/Monitoring: Town of Truckee Planning Division MM 4.8.1g Project landscaping shall not include invasive species of the genus Cirsium. The invasive Russian olive (Elaeagnus angustifolia) and cranberry cotoneaster (Cotoneaster apiculatus) shall be removed from the Community Plant Palette. Timing/Implementation: As part of landscaping approval Enforcement/Monitoring: Town of Truckee Planning Division Impact 4.8.2 Implementation of the proposed Coldstream Specific Plan could result in direct and indirect loss of habitat and individuals of animal and plant species of concern, listed as “fully protected” in the PS MM 4.8.2a Prior to initiation of construction activity, a bat survey shall be performed by a wildlife biologist or other qualified professional between March 1 to July 31 in the year prior to the removal of any buildings or the Cold Creek bridge. If bat roosts are LS 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-9 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance Fish and Game Code of California (Sections 3511, 4700, 5050, 5515), migratory birds protected under the Migratory Bird Treaty Act, and other non- listed special-status species. identified on site, the Town shall require that the bats be safely flushed from the sites where roosting habitat is planned to be removed prior to roosting season (typically May to August) of each construction phase and prior to the onset of construction activities. If maternity roosts are identified during the maternity roosting season (typically May to August), they must remain undisturbed until a qualified biologist has determined the young bats are no longer roosting. If roosting is found to occur on site, replacement roost habitat (e.g., bat boxes) shall be provided on site for roosting sites removed. If no bat roosts are detected, then no further action is required if the trees and buildings are removed prior to the next breeding season. If removal is delayed, then an additional pre-demolition survey shall be conducted 30 days prior to removal to ensure that a new colony has not established itself. If a female or maternity colony of bats are found within or adjacent to the project site or off-site trails PSA and the project can be constructed without the elimination or disturbance of the roosting colony (e.g., if the colony roosts in a large oak tree not planned for removal), a wildlife biologist shall determine what physical and timed buffer zones shall be employed to ensure the continued success of the colony. Such buffer zones may include a construction-free barrier of 200 feet from the roost and/or the timing of the construction activities outside of the maternity roost season (after July 31 and before March 1). If an active nursery roost is known to occur on site and the project cannot be conducted outside of the maternity roosting season, bats shall be excluded from the site after July 31 and before March 1 to 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-10 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance prevent the formation of maternity colonies. Non- breeding bats shall be safely evicted, under the direction of a bat specialist. Timing/Implementation: Fourteen days prior to ground disturbance or tree removal Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division MM 4.8.2b A worker environmental awareness program (WEAP) shall be established and implemented prior to construction to educate the construction crew on special-status species and other sensitive biological resources with the potential to occur in the area. The program shall include, at a minimum, species identification, a description of suitable habitat for this species, and measures to implement in the event that this species is found during construction. The program shall be presented to all members of the construction crew. Timing/Implementation: Prior to any employee conducting work on the project site or off-site trails PSA Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division MM 4.8.2c The following best management practices (BMPs) shall be implemented during construction to reduce impacts to special-status species and habitat: • Limit construction equipment and associated activities to the project routes in areas that support sensitive resources. • To eliminate an attraction to predators of special-status species, all food-related trash items such as wrappers, cans, bottles, and food scraps will be disposed of in solid, closed 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-11 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance containers (trash cans) and removed at the end of each working day from the entire construction site. • Implement construction measures to avoid accidental transport and spread of invasive species including the cleaning of construction vehicles and equipment prior to entering the project site, utilizing weed-free plant material and soil/fill materials or treating soil/fill materials to kill weeds when stockpiled. Timing/Implementation: Fourteen days prior to ground disturbance Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division Impact 4.8.3 Implementation of the proposed project would result in disturbance, degradation, and/or removal of sensitive biological communities. PS MM 4.8.3a Proposed Coldstream Specific Plan setback and landscape provisions shall be modified to require the retention of existing riparian habitat (except where restoration of riparian habitat is planned). Plantings within this setback area shall be limited to native species that either expand or complement existing riparian habitat. Timing/Implementation: As part of the approval of the proposed Coldstream Specific Plan Enforcement/Monitoring: Town of Truckee Planning Division MM 4.8.3b Where impacts to riparian habitat are not avoidable and on-site preservation is not possible, then habitat compensation shall be required at a 1:1 impact preservation ratio. To mitigate for the permanent direct and indirect impacts from the proposed project, a mitigation and monitoring plan will be prepared for submittal to the USACE with the Section 404 permit application. The mitigation plan will identify impacts on all jurisdictional features and LS 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-12 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance mitigation measures that will be implemented to achieve the “no net loss” (i.e., the same amount of wetland resources lost to site development shall be replaced/created). This may include creation of wetland resources on the project site or off site as determined acceptable to the Town and USACE. To assist in the on-site revegetation, areas of existing vegetation with a diameter at breast height (DBH) of 4 inches or less that do not require complete removal shall be cut at ground level with hand- operated power (i.e. saws, pruners, etc.). Timing/Implementation: Prior to construction-related disturbance to riparian habitat Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division MM 4.8.3c A 1602 Streambed Alteration Agreement for removal of or disturbance to riparian habitat and waters of the United States (i.e., stream, lake, or river) from CDFG would also be required for the proposed project. This agreement will include measures to minimize impacts to and restore riparian habitat. The 1602 Streambed Alteration Agreement would require the project applicant to prepare and implement a riparian vegetation mitigation and monitoring plan for the restoration of impacted riparian vegetation. Timing/Implementation: Prior to the start of construction activities that disturb riparian habitat Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division Impact 4.8.4 The proposed Coldstream Specific Plan would potentially result in a substantial adverse effect on federally protected wetlands as defined by Section 404 of the PS MM 4.8.4 The project applicant shall comply with the USACE “no net loss” policy for mitigation of wetlands under the jurisdiction of the USACE. The applicant must apply for a Section 404 permit, a Section 401 LS 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-13 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance Clean Water Act (including, but not limited to, riverine, marsh, and seasonal wetland) through direct removal, filling, hydrological interruption, or other means. permit, and a 1602 Streambed Alteration Agreement. If wetland resources are proposed to be taken, the project applicant shall do the following: 1. If required, apply for a Section 404 permit from the USACE after verification of the wetland delineation by the USACE. Any waters of the U.S. that would be lost or disturbed shall be replaced or rehabilitated on a no net loss basis in accordance with the USACE mitigation guidelines. On-site creation of wetland habitat is preferred to off-site mitigation. Habitat restoration, rehabilitation, and/or replacement shall be at a location and by methods agreeable to the USACE. 2. Obtain a Section 401 water quality waiver of or 3. A mitigation plan shall be implemented that includes certification from the RWQCB. one (a) Completion of an on-site Mitigation and Monitoring Plan (such as proposed by the Coldstream Specific Plan, see Draft EIR Table 4.8-9) that includes on-site creation/preservation of the wetlands. This will include measures to avoid impacts to wetlands and habitat to be preserved such as fencing, best management practices to protect water quality and other appropriate measures. of the following: (b) Credits may be obtained at an approved mitigation bank. The project applicant shall provide written evidence to the Town from the USACE and the RWQCB that this measure has been complied with prior to project approval. 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-14 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance Timing/Implementation: Prior to the start of construction activities that would impact wetlands Enforcement/Monitoring: Town of Truckee Planning Division and Engineering Division Impact 4.8.5 Implementation of the proposed project may interfere with the movement of special-status and common wildlife species; however the impact would be less than significant. LS None required. LS Impact 4.8.6 Implementation of the proposed project would not conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or any adopted biological resources recovery or conservation plan of any federal or state agency. N None required. N Impact 4.8.7 Implementation of the proposed project would result in the loss of coniferous and black cottonwood trees. Although the Town of Truckee Development Code contains no tree preservation ordinance, the Development Code does require that the project applicant inventory and submit a list of all trees to be removed. PS MM 4.8.7a If the trees removed from the project site are to be sold commercially, the project applicant shall submit a Timber Harvest Plan prepared by a licensed professional forester. If the trees to be removed will not be sold commercially, this measure does not apply. • The Timber Harvest Plan shall identify measures to meet the following requirements: • Minimize the extent of the development and locate all construction so as to avoid impacts to existing trees over 36 inches in diameter. • Cluster development as much as possible in order to retain continuous stands of trees in the non-developed portion. Prior to finalization, the Timber Harvest Plan shall be submitted concurrently with fuel-reducing LS 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-15 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance measures to the Truckee Fire Protection District for approval. The Timber Harvest Plan shall address and mitigate for the removal of trees within the footprint of the proposed Coldstream Specific Plan. Timing/Implementation: Prior to issuance of grading permits Enforcement/Monitoring: Town of Truckee Planning Division; Truckee Fire Protection District MM 4.8.7b The black cottonwood trees proposed for removal shall be replaced on site at a ratio of 2:1 utilizing 5- gallon-size black cottonwoods (Populus balsamifera ssp. trichocarpa) or 4” X 14” tree pots. Placement of the plantings shall occur in an area designated as open space or a non-disturbance zone. Prior to construction, a revegetation plan is required by a qualified restoration specialist that identifies a planting area within the project site containing soil and moisture conditions suitable for cottonwood planting. This shall be included in the proposed project’s Restoration Plan. Timing/Implementation: Prior to issuance of grading permits Enforcement/Monitoring: Town of Truckee Planning Division MM 4.8.7c The following protective measures shall be implemented to avoid damage during construction to trees proposed for preservation that are located within the actual construction zone: • A circle with a radius measurement from the trunk of the tree to the tip of its longest limb shall constitute the dripline protection area of each tree. Limbs must not be cut back in order to change the dripline. The area beneath the dripline is a critical portion of the root zone and defines the minimum protected area of each tree. Removing limbs that make up the 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-16 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance dripline does not change the protected area. • Temporary protective fencing shall be installed at least 1 foot outside of the driplines of the protected trees prior to the start of construction work in order to avoid damage to the trees and their root systems. This fencing may be installed around the outermost dripline of clusters of trees proposed for protection, rather than individual trees. Fencing shall be shown on all project plans. • No vehicles, construction equipment, mobile home/office, supplies, materials, or facilities shall be driven, parked, stockpiled, or located within the driplines of protected trees. A laminated sign indicating such shall be attached to fencing surrounding trees on site. • No grading (grade cuts or fills) shall be allowed within the driplines of protected trees. • No trenching shall be allowed within the driplines of protected trees. If it is absolutely necessary to install underground utilities within the dripline of a protected tree, the utility line shall be bored and jacked under the supervision of a certified arborist. Timing/Implementation: Protected trees and associated dripline areas shall be shown on all improvement and grading plans Enforcement/Monitoring: Town of Truckee Planning Division Impact 4.8.8 Implementation of the proposed Coldstream Specific Plan, in combination with existing, approved, proposed, and reasonably foreseeable development, will result in the conversion of habitat and LCC Implement project-specific mitigation measures MM 4.8.1a through MM 4.8.1g, MM 4.8.2a through MM 4.8.2c, MM 4.8.3a through MM 4.8.3c, MM 4.8.4, and MM 4.8.7a through MM 4.8.7c, as well as mitigation measures listed in Draft EIR Section 4.7, Hydrology and Water Quality. LCC 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-17 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance impact biological resources. The implementation of the mitigation measures listed above would reduce cumulative impacts to biological resources by addressing impacts at the project-specific level. 4.9 Historic and Cultural Resources Impact 4.9.1 The proposed Coldstream Specific Plan could result in a substantial adverse change in the significance of a historical resource. LS None required. LS Impact 4.9.2 Implementation of the proposed Coldstream Specific Plan could potentially destroy or damage undiscovered prehistoric and historical cultural resources on the project site. PS MM 4.9.2a • Prior to any ground disturbances or construction within 20 feet of the archaeological site CA-NEV- 785, the following mitigation shall be accomplished: • All land disturbance and construction shall avoid site CA-NEV-785 and a buffer area of 20 feet around the perimeter of the site shall be established. • A Historic Properties Treatment Plan shall be completed using the Archaeological Testing and Data Recovery Approach outlined in the Archaeological Inventory Survey prepared for the proposed project (Genesis Society, 2013) which is included as Section 4.9.5 of the Draft EIR. LS Prior to initiation of ground-disturbing activities, formal archaeological testing of the prehistoric site shall be completed as well as evaluation of the significance of any cultural materials encountered during any formal archeological testing in accordance with the recovery methods and analytical techniques and approaches described in the 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-18 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance Archaeological Inventory Survey. • Upon completion of formal archaeological testing or any mitigative-level data recovery excavations recommended on the basis of testing results, initial ground-disturbing impacts to untested portions of the prehistoric site shall be monitored per the specifics identified in the Monitoring Plan of the Archaeological Inventory Survey, included in Section 4.9.5 of the Draft EIR. Monitoring shall ensure that any inadvertent discoveries of previously undocumented and unknown cultural materials encountered are evaluated and that an appropriate level of data recovery is undertaken in the event of such a discovery. Monitoring shall involve one or more archaeologists (depending on the number of pieces of equipment operating at once) during initial land clearing, grading, and other ground-disturbing impacts at the site or within the 20-foot buffer and shall include the presence of a Native American representative. Timing/Implementation: As a condition of project approval, and implemented during project construction for each phase Monitoring/Enforcement: Town of Truckee Planning Division MM 4.9.2b If, during the course of construction, cultural resources (i.e., prehistoric sites, historic sites, exotic rock [non-native], or unusual amounts of shell or bone, isolated artifacts, or other features) are discovered, work shall be halted immediately within 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-19 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance a 200-foot radius of the discovery, the Town of Truckee Community Development Department shall be notified, and a professional archaeologist that meets the Secretary of the Interior’s Professional Qualifications Standards in prehistoric or historical archaeology shall be retained to determine the significance of the discovery. Determination of impacts, significance, and mitigation shall be made by a qualified archaeologist (in consultation with recognized local Native American groups, if the resources are of Native American association). Prior to the commencement of project excavations, all construction personnel shall be informed of the potential to inadvertently uncover cultural resources and human remains and the procedures to follow subsequent to an inadvertent discovery of cultural resources or human remains. Timing/Implementation: As a condition of project approval, and implemented during project construction for each phase Monitoring/Enforcement: Town of Truckee Planning Division Impact 4.9.3 Approval of the proposed Coldstream Specific Plan could result in the potential disturbance of paleontological resources (i.e., fossils and fossil formations) on the project site. PS MM 4.9.3 A note shall be placed on the improvement plans stipulating that if paleontological resources are discovered on-site, the applicant shall retain a qualified paleontologist to observe grading activities and salvage fossils as necessary. The paleontologist shall establish procedures for paleontological resource surveillance and shall establish, in cooperation with the project developer, procedures for temporarily halting or redirecting work to permit sampling, identification, and evaluation of fossils. If major paleontological resources are discovered, which require temporarily halting or redirecting of grading, the paleontologist shall report such findings to the LS 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Coldstream Specific Plan Town of Truckee Partially Revised Draft Environmental Impact Report October 2013 2.0-20 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance project developer, and to the Town of Truckee Community Development Department. The paleontologist shall determine appropriate actions, in cooperation with the project developer, which ensure proper exploration and/or salvage. Timing/Implementation: As a condition of project approval, and implemented during project construction for each phase Monitoring/Enforcement: Town of Truckee Planning Division Impact 4.9.4 No evidence of human remains has been identified for the project site. However, human remains could be encountered during construction. PS MM 4.9.4 If human remains are discovered, all work shall be halted immediately within a 200-foot radius of the discovery, the Town of Truckee Community Development Department shall be notified, and the County Coroner must be notified, according to Section 5097.98 of the State Public Resources Code and Section 7050.5 of California’s Health and Safety Code. If the remains are determined to be Native American, the coroner will notify the Native American Heritage Commission, and the procedures outlined in CEQA Section 15064.5(d) and (e) shall be followed. Timing/Implementation: As a condition of project approval, and implemented during project construction for each phase Monitoring/Enforcement: Town of Truckee Planning Division LS Impact 4.9.5 Implementation of the proposed Coldstream Specific Plan, in combination with foreseeable development in the surrounding area, could result in the disturbance of cultural resources (i.e., prehistoric sites, historic sites, and isolated artifacts and features) and human remains. CC Implementation of mitigation measures MM 4.9.2a, MM 4.9.2b, and MM 4.9.4 would assist in reducing significant impacts to known and unknown prehistoric and historic resources and human remains. LCC 2.0 EXECUTIVE SUMMARY N – No Impact PS – Potentially Significant SU – Significant and Unavoidable LCC – Less Than Cumulatively Considerable LS – Less Than Significant S – Significant CC – Cumulatively Considerable Town of Truckee Coldstream Specific Plan October 2013 Partially Revised Draft Environmental Impact Report 2.0-21 Impact Level of Significance Without Mitigation Mitigation Measure Resulting Level of Significance Impact 4.9.6 Implementation of the proposed Coldstream Specific Plan, along with any foreseeable development in the surrounding area, could result in the potential disturbance of paleontological resources (i.e., fossils and fossil formations). CC Implementation of mitigation measure MM 4.9.3 would assist in reducing significant cumulative impacts to known and unknown paleontological resources. LCC