Devers Palo Verde No 2

From Open Energy Information


NEPA Document Collection for: Devers Palo Verde No 2
EIS

EIS/EIR Devers-Palo Verde No. 2 500kV Transmission Line Project

Proposed Action

Southern California Edison (SCE) filed an application (Application Number A.05-04-015) for a Certificate of Public Convenience and Necessity (CPCN), accompanied by its Proponent’s Environmental Assessment (PEA), with the California Public Utilities Commission (CPUC) on April 11, 2005 for the Devers–Palo Verde 500 kV No. 2 (DPV2) Transmission Line Project (Proposed Project). The CPUC identifies the DPV2 Project as Application A.05-04-015. This Draft Environmental Impact Report/Environmental Impact Statement (Draft EIR/EIS) has been prepared by the California Public Utilities Commission as Lead Agency under the California Environmental Quality Act (CEQA) and the U.S. Department of the Interior, Bureau of Land Management (BLM) under the National Environmental Policy Act (NEPA) to inform the public and to meet the needs of local, State, and federal permitting agencies to consider the project proposed by SCE (or "the Applicant").

The Proposed Project would traverse federal BLM land in both California and Arizona. Although the Proposed Project would be located primarily within SCE’s existing easement, there may be some areas where additional ROW would need to be acquired. Therefore, SCE has also submitted an application for a Right-of-Way Grant Permit from BLM to implement the project and comply with NEPA. In addition, because approximately 106 miles of the proposed alignment would traverse lands in Arizona (the majority of which would be on BLM lands and under federal jurisdiction), pursuant to Arizona Revised Statute 40-360 et seq., the ACC must issue a Certificate of Environmental Compatibility (CEC) to SCE based on environmental review and an analysis of purpose and need in order for SCE to construct a transmission line. Therefore, SCE has stated its intention to file its application for a CEC with the ACC in late April 2006. This application would serve the same general purpose as the PEA submitted to the CPUC.

Conditions of Approval

An amended ROW grant was issued to Southern California Edison (SCE) by BLM for a term of 30 years with a right of renewal so long as the holder is complying with the lease/grant and applicable laws and regulations. The ROW grant will allow SCE the right to use, occupy, and develop the described public lands to construct, operate, maintain, and decommission a 500 kV transmission line, substation, telecommunications system, and associated facilities. The special use easement will be issued to SCE by the FS for a term of 50 years. The special use easement does not provide for renewal; however a new easement may be issued at the end of the term at the discretion of the authorized officer. The special use easement will authorize SCE to occupy and use National Forest System lands for electric transmission lines and associated facilities.

The ROW grant is conditioned on implementation of mitigation measures and monitoring programs as identified in the Final EIR/EIS, the Biological Opinion (BO) issued by the United States Fish and Wildlife Service (USFWS) on January 11, 2011, the National Historic Preservation Act (NHPA) Section 106 Programmatic Agreement (PA), the California Public Utilities Commission (CPUC) Conditions of Certification, and the issuance of all necessary local, state, and federal approvals, authorizations, and permits.

Data Completion Notes

BLM project website: http://www.blm.gov/ca/st/en/fo/palmsprings/devers_paloverde.html CPUC project website: http://www.cpuc.ca.gov/Environment/info/aspen/dpv2/dpv2.htm

NEPA Resource Analysis Updated: May 2016.

Documents

EA/EIS Report:



 

Resource Analysis

Resource Not
Present
Present,
Not
Affected
Present,
Potentially
Affected
Not
Indicated
Comment Applicant
Proposed
Mitigation
Agency
Imposed
Mitigation
Access and Transportation
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

CloseSite construction workers would be staged offsite at or near paved intersections and workers would be shuttled in crew vehicles to construction sites. As part of the construction contract, SCE would require bidders to submit a con- struction transportation plan describing how workers would travel to the job site.

At all highway and recreation routes-of-travel crossings, including the Colorado River, towers will be placed at the maximum feasible distance, and when feasible, [except in locations where matching existing tower spacing is deemed appropriate]. (BLM B-6.3) [From “and where feasible,” the BLM text reads “...at right angles, from the crossing.” SCE has replaced this phrase in the bracketed text.]

At all highway and recreation routes-of-travel crossings, including the I-10 crossing, towers would be placed at the maximum feasible distance, except in locations where matching existing tower spacing is deemed appropriate, and when feasible, at 90 degree angles from the crossing.
 
Air Quality
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Heavy duty off-road diesel engines would be properly tuned and maintained to manufacturers’ specifications to ensure minimum emissions under normal operations. (SCE)
  • Water or chemical dust suppressants would be applied to unstabilized disturbed areas and/or unpaved roadways in sufficient quantity and frequency to maintain a stabilized surface.
  • Water or water-based chemical additives would be used in such quantities to control dust on areas with extensive traffic including unpaved access roads; water, organic polymers, lignin compounds, or conifer resin compounds would be used depending on availability, cost, and soil type.
  • Surfaces permanently disturbed by construction activities would be covered or treated with a dust suppressant after completion of activities at each site of disturbance.
  • Vehicle speeds on unpaved roadways would be restricted to 15 miles per hour.
  • Vehicles hauling dirt would be covered with tarps or by other means.
  • Site construction workers would be staged offsite at or near paved intersections and workers would be shuttled in crew vehicles to construction sites. As part of the construction contract, SCE would require bidders to submit a con- struction transportation plan describing how workers would travel to the job site.
  • Emissions credits would be purchased to offset any emissions levels which are over the emissions thresholds. (This analysis assumes that APM A-8 would provide emission reduction credits (or offsets) for only those emissions above the federal General Conformity applicability thresholds, and only as necessary to complete a positive federal conformity determination for NOx and VOC emissions only. The use of offsets to miti- gate emissions levels above all other local air district thresholds would not be not feasible because there would be no way to acquire all of the necessary offsets especially for PM10. Such quantities of PM10 emission reduction credits do not exist, and buying or creating the amount of necessary emission reduc- tions would be cost-prohibitive and would not be possible within the proposed development schedule of the project.)
  • Visible emission from all heavy duty off road diesel equipment shall not exceed 40 percent opacity for more than three minutes in any hour of operation;
 
Cultural Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

 
Close
  • Prior to construction and all surface disturbing activities, the Holder, shall have conducted and submitted for approval by the Authorized Officer an inventory of cultural resources within the project’s APE. The nature and extent of this inventory shall be determined by the Authorized Officer in consultation with
  • As part of the inventory, the Holder shall conduct field surveys of sufficient nature and extent to identify cultural resources that would be affected by tower pad construction, access road installation, and transmission line construction and operation. At a minimum, field surveys shall be conducted along newly proposed access roads, new construction yards, and any other projected impact areas outside of the previously surveyed corridor. Site- specific field surveys also shall be undertaken at all projected areas of impact within the previously surveyed corridor that coincide with previously recorded cultural resource locations. The selected right-of-way shall be staked prior to the cultural resource field surveys. (BLM B-9.2)
  • As part of the inventory report, the Holder shall evaluate the significance of all affected cultural resources and provide recommendations with regard to their eligibility for the NRHP. Determinations of NRHP eligibility will be made by the Authorized Officer in consultation with the appropriate SHPO. (BLM B-9.3)
  • Upon approval of the inventory report by the Authorized Officer, the Holder shall prepare and submit for approval a cultural resource treatment plan for NRHP-eligible cultural resources to mitigate identified impacts. Avoidance, recordation, and data recovery will be used as mitigation alternatives. (BLM B-9.4)
  • The Authorized Officer may require the relocation of the line, ancillary facilities, or temporary facilities or work areas, if any, where relocation would avoid or reduce damage to cultural resource values. (BLM B-9.5)
  • If avoidance of specific cultural resources is not feasible, treatment shall be carried out as determined by the Authorized Officer in consultation with the appropriate SHPO. (BLM B-9.6)
  • When necessary to relocate the proposed line, ancillary facilities, temporary facilities, or work areas as a result of inventory, onsite avoidance decisions, or the Holder’s approved request for relocation, the Holder shall inventory the proposed new locations for cultural resources and provide inventory results to the Authorized Officer prior to construction. Any mitigation deemed necessary by the Authorized Officer shall be completed prior to undertaking any surface disturbing activities. (BLM B-9.7)
  • All cultural resource work undertaken by the Holder on public lands shall be carried out by qualified professionals designated on a currently valid Cultural Resource Use Permit for the appropriate State. (BLM B-9.8)
  • Notices to proceed will be issued following completion, and approval by the Authorized Officer, of any fieldwork determined necessary through the inventory, evaluation, and consultation process described above. (BLM B-9.9)
  • Vehicles and equipment shall be confined and operated only within areas specified by the Authorized Officer. (BLM B-9.10)
  • Unauthorized collection of artifacts or other cultural materials on or off the right-of-way by the Holder, his repre- sentatives, or employees will not be allowed. Violators will be subject to prosecution under the appropriate State and federal laws. Unauthorized collection may constitute grounds for the issuance of a stop work order. (BLM B-9.11)
  • Impacts to significant paleontological resources will be mitigated by conducting a preconstruction survey in areas of high or undetermined paleontological sensitivity to identify and collect surface specimens that could be affected by project construction. Paleontological monitoring of earth-disturbing construction activities and salvage of significant specimens will occur in project areas of high sensitivity. (SCE)
  • Vehicular travel must be on established roads to the maximum extent practicable. Any off-road vehicle use should be strongly discouraged. This will benefit many of the species covered by the [Coachella Valley Multiple Species Habitat Conservation] plan. (SCE)
  • Access – To the maximum extent possible, access for transmission line construction and maintenance should occur from public roads and designated routes. (SCE)
  • each major rainstorm as access permits. For the purpose of this measure, a major rainstorm is defined as any singular storm where the total precipitation exceeds the arithmetic mean for similar events in the area and results in flooding. Examples include cloudbursts (high quantity, short duration) or storms where
  • Erosion control and hazardous material plans will be incorporated into the construction bidding specifications to ensure compliance. (BLM B-4.3)
  • Cut and fill slopes will be minimized by a combination of benching and following natural topography where possible. (BLM B-4.9)
  • New access roads and soil disturbance will be avoided or minimized in all areas designated as having high erosion hazards or potential slope instability. If the Authorized Officer, after consultation and review of alternatives (including helicopter or helicopter assisted construction), deems the proposed new access road feasible, design plans must be submitted for approval, in writing, prior to construction. (BLM B-3.1. Note: Text here omits references to specific figures and maps in the original (1987-88) DEIR and DEIS.)
  • New access roads, which are required, will be designed to minimize ground disturbance from grading. They will follow natural ground contours as closely as possible and include specific features for road drainage, including water bars on slopes over 25 percent. Other measures could include drainage dips, side ditches, slope drains, and velocity reducers. Where temporary crossings are constructed, the crossings will be restored and repaired as soon as possible after completion of the discrete action associated with construction of the line in the area. (BLM B-3.2)
  • New access road construction will be kept to a minimum.
Geology and Minerals
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Erosion control and hazardous material plans will be incorporated into the construction bidding specifications to ensure compliance.

Runoff from roadways will be collected and diverted from steep, disturbed, or otherwise unstable slopes.

  • Ditches and drainage concourses will be designed to handle the concentrated runoff, will be located to avoid disturbed areas, and will have energy dissipations at discharge points.

Cut and fill slopes will be minimized by a combination of benching and following natural topography where possible.

  • Erosion control and hazardous material plans would be incorporated into the construction bidding specifications to ensure compliance.

Along Link 10 in the Palo Verde Valley, H-frame structures, similar to the existing DPV1 structures, would be installed in this segment to reduce the amount of farmland permanently removed from production and minimize impacts to farm operations. Where feasible, additional mitigation measures would include matching tower spans, and aligning towers adjacent or parallel to field boundaries.

  • Link 14 crosses an open pit gravel operation. Potential impacts would be mitigated during construction by coordinat- ing with the owner/operator to avoid critical mining periods and high volume earth-moving days. Operational miti- gation would include spanning the mine.

The line will be located to minimize the disruption of any active mining operations. Individual Ttransmission towers will not be sited on nor straddle the mapped traces of any known fault that has been tower site area before clearing, and will check the tower footing holes for any trace of a previously unmapped fault. If manifestations of a fault are found, construction will immediately stop at that site and the Holder will consult with the Holder’s Geologist and the BLM Authorized Officer. The Holder’s Geologist and the BLM Authorized Officer will determine if it is a fault trace and if so, will ascertain if it is active, potentially active, or inactive. Towers will be located so that the line will span the surface traces of active and potentially active faults such that a relative lateral surface displacement would shorten the span between towers, and thus avoid potential line breaks. Where this is not feasible, the Holder will incorporate slack spans to bridge the fault(s) such that the projected lateral surface displacement, as forecast by the Holder’s geologist Geologist and accepted by the BLM Authorized Officer, will not structurally affect the associated towers.

  • Appropriate tower design will be used to mitigate the potential for very strong seismic groundshaking. In general, an appropriate tower design, which accounts for lateral wind loads and conductor loads, during line stringing exceeds any credible seismic loading (groundshaking).

Towers will be located to avoid areas of highly sensitive dune sand areas. Where these areas cannot be avoided, towers will be located to minimize disturbance to the deposits at a site approved by the BLM Authorized Officer. (BLM B-2.5. Note: Text here omits references to specific figures and maps in the original.

  • Wherever possible feasible to minimize the potential for slope instability, towers will be located to avoid gullies or active drainages, and over-steepened slopes.

SCE will provide a list of sites where helicopter construction is recommended. The Authorized Officer may require, on a site-specific basis, helicopter assisted construction in sensitive areas. Sensitive areas are those that exhibit both (1) high erosion potential and/or slope instability; and (2) a lack of existing access stub roads within a reasonable distance of the tower site (generally no more than 1⁄4 mile), or existing access that is not suitable for upgrading to accommodate conventional tower construction or line stringing equipment, and where it is determined that, after field review, the issues of erosion and/or slope instability cannot be successfully mitigated through implementation of accepted engineering practices. Mitigation of potentially significant impacts to the western end of the proposed transmission line due to (1) potential surface fault rupture along the Banning, Mission Creek, and Mecca Hills faults, and (2) potential for severe seismic shaking can be achieved by standard design methods listed below: a. Individual Ttowers will be sited so as not to straddle active fault traces. The alignment will be designed to cross an active fault such that future rupture on the fault would not cause excessive stress on the line or the towers. c. Standard foundation and structural design measures will be utilized to minimize the impact from severe seismic shaking. Appropriate design of tower foundations will be used to reduce the potential for settlement and compaction.

  • New access roads and soil disturbance will be avoided or minimized in all areas designated as having high erosion hazards or potential slope instability. If the Authorized Officer, after consultation and review of alternatives (includ- ing helicopter or helicopter assisted construction), deems the proposed new access road feasible, design plans must be submitted for approval, in writing, prior to construction.
  • New access roads, which are required, will be designed to minimize ground disturbance from grading. They will fol- low natural ground contours as closely as possible and include specific features for road drainage, including water bars on slopes over 25 percent. Other measures could include drainage dips, side ditches, slope drains, and velocity reducers. Where temporary crossings are constructed, the crossings will be restored and repaired as soon as pos- sible after completion of the discrete action associated with construction of the line in the area.
  • Side casting of soil during grading will be minimized. Excess soil and excavated soil will be properly stabilized or, if necessary, end-hauled to an approved disposal site dispersed around tower construction sites or on stub or access roads.
  • During grading operations, care would be exercised to minimize side casting. No earth would be removed below final elevations, and no cuts would be made deeper than necessary for clearing and road construction.
  • Upon completion of construction, any drainage deficiencies would be corrected to prevent future erosion. Trees and brush would be cleared only when necessary to provide electrical clearance, line reliability, or suitable access for maintenance and construction.
  • Counterpoise may need to be installed if the local soil conditions indicate that the soil has a resistance above 30 ohms. This is accomplished by attaching a 0.375-inch cable to the tower steel. The cable is installed 1 foot under- ground and extends approximately 100 feet within the ROW from two or more footings.
  • The line would be located to minimize the disruption of any active mining operations.
  • Appropriate tower design would be used to mitigate the potential for impacts from very strong seismic groundshaking. In general, an appropriate tower design which accounts for lateral wind loads and conductor loads during line string- ing exceeds any credible seismic loading (groundshaking).
  • Whenever possible to minimize the potential for slop instability, towers would be located to avoid gullies or active drainages, and over-steepened slopes.
  • New access roads, where required, would be designed to minimize ground disturbance from grading. They would follow natural ground contours as closely as possible and include specific features for road drainage, including water bars on slopes over 25 percent. Other measures could include drainage dips, side ditches, slope drains, and velocity reducers. Where temporary crossings are constructed, the crossings would be restored and repaired as soon as possible after completion of the discrete action associated with construction of the line. Side casting of soil during grading would be minimized. Excess soil would be properly stabilized, or if necessary, hauled to an approved dis- posal site.
Close
  • Link 14 crosses an open pit gravel operation. Potential impacts would be mitigated during construction by coordinating with the owner/operator to avoid critical mining periods and high volume earth-moving days. Operational mitigation would include spanning the mine.
  • The line will be located to minimize the disruption of any active mining operations.

Individual Ttransmission towers will not be sited on nor straddle the mapped traces of any known fault that has been designated active or potentially active. In areas where known faults are present, the Holder5 will visually check the tower site area before clearing, and will check the tower footing holes for any trace of a previously unmapped fault. If manifestations of a fault are found, construction will immediately stop at that site and the Holder will consult with the Holder’s Geologist and the BLM Authorized Officer. The Holder’s Geologist and the BLM Authorized Officer will determine if it is a fault trace and if so, will ascertain if it is active, potentially active, or inactive.

Invasive, Nonnative Species
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Avoid the introduction of noxious weeds and/or other invasive species through standard noxious weed measures. This will benefit most of the species covered by the [Coachella Valley Multiple Species Habitat Conservation] plan.
  • Vehicular travel must be on established roads to the maximum extent practicable. Any off-road vehicle use should be strongly discouraged. This will benefit many of the species covered by the [Coachella Valley Multiple Species Habitat Conservation] plan.
  • Requirement that stopped vehicles stop engines if stationary for a determined period of time
  • Requirement that operators of vehicles, if stopped for longer than a determined period of time, inspect under their vehicles to ensure that no animals have taken shelter from the sun; this requirement has been implemented before by requiring that vehicles with stopped engines have their keys placed under the vehicle thus forcing the operator to inspect
  • Flagging of all disturbed areas if needed to clarify drive-able or walk-able areas
 
Lands and Realty
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Noise
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Link 10 crosses an (unoccupied) single-family dwelling unit at Milepost 5.3. Two additional single-family dwelling units and one mobile home would be impacted due to the alignment of Link 10 at Milepost 6.2. Mitigation measures would include purchase of the parcel and relocation or, if practical, adjusting the transmission line alignment and placing towers to avoid the affected dwelling units. (SCE)
  • The proposed construction would comply with local noise ordinances. There may be a need to work outside of the aforementioned local ordinances in order to take advantage of low electrical draw periods during the nighttime hours. SCE would comply with variance procedures requested by local authorities if required.
 
Paleontological Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

 
Close
  • Prior to construction and all surface disturbing activities, the Holder, shall have conducted and submitted for approval by the Authorized Officer an inventory of cultural resources within the project’s APE. The nature and extent of this inventory shall be determined by the Authorized Officer in consultation with
  • As part of the inventory, the Holder shall conduct field surveys of sufficient nature and extent to identify cultural resources that would be affected by tower pad construction, access road installation, and transmission line construction and operation. At a minimum, field surveys shall be conducted along newly proposed access roads, new construction yards, and any other projected impact areas outside of the previously surveyed corridor. Site- specific field surveys also shall be undertaken at all projected areas of impact within the previously surveyed corridor that coincide with previously recorded cultural resource locations. The selected right-of-way shall be staked prior to the cultural resource field surveys. (BLM B-9.2)
  • As part of the inventory report, the Holder shall evaluate the significance of all affected cultural resources and provide recommendations with regard to their eligibility for the NRHP. Determinations of NRHP eligibility will be made by the Authorized Officer in consultation with the appropriate SHPO. (BLM B-9.3)
  • Upon approval of the inventory report by the Authorized Officer, the Holder shall prepare and submit for approval a cultural resource treatment plan for NRHP-eligible cultural resources to mitigate identified impacts. Avoidance, recordation, and data recovery will be used as mitigation alternatives. (BLM B-9.4)
  • The Authorized Officer may require the relocation of the line, ancillary facilities, or temporary facilities or work areas, if any, where relocation would avoid or reduce damage to cultural resource values. (BLM B-9.5)
  • If avoidance of specific cultural resources is not feasible, treatment shall be carried out as determined by the Authorized Officer in consultation with the appropriate SHPO. (BLM B-9.6)
  • When necessary to relocate the proposed line, ancillary facilities, temporary facilities, or work areas as a result of inventory, onsite avoidance decisions, or the Holder’s approved request for relocation, the Holder shall inventory the proposed new locations for cultural resources and provide inventory results to the Authorized Officer prior to construction. Any mitigation deemed necessary by the Authorized Officer shall be completed prior to undertaking any surface disturbing activities. (BLM B-9.7)
  • All cultural resource work undertaken by the Holder on public lands shall be carried out by qualified professionals designated on a currently valid Cultural Resource Use Permit for the appropriate State. (BLM B-9.8)
  • Notices to proceed will be issued following completion, and approval by the Authorized Officer, of any fieldwork determined necessary through the inventory, evaluation, and consultation process described above. (BLM B-9.9)
  • Vehicles and equipment shall be confined and operated only within areas specified by the Authorized Officer. (BLM B-9.10)
  • Unauthorized collection of artifacts or other cultural materials on or off the right-of-way by the Holder, his repre- sentatives, or employees will not be allowed. Violators will be subject to prosecution under the appropriate State and federal laws. Unauthorized collection may constitute grounds for the issuance of a stop work order. (BLM B-9.11)
  • Impacts to significant paleontological resources will be mitigated by conducting a preconstruction survey in areas of high or undetermined paleontological sensitivity to identify and collect surface specimens that could be affected by project construction. Paleontological monitoring of earth-disturbing construction activities and salvage of significant specimens will occur in project areas of high sensitivity. (SCE)
  • Vehicular travel must be on established roads to the maximum extent practicable. Any off-road vehicle use should be strongly discouraged. This will benefit many of the species covered by the [Coachella Valley Multiple Species Habitat Conservation] plan. (SCE)
  • Access – To the maximum extent possible, access for transmission line construction and maintenance should occur from public roads and designated routes. (SCE)
  • Each major rainstorm as access permits. For the purpose of this measure, a major rainstorm is defined as any singular storm where the total precipitation exceeds the arithmetic mean for similar events in the area and results in flooding. Examples include cloudbursts (high quantity, short duration) or storms where
  • Erosion control and hazardous material plans will be incorporated into the construction bidding specifications to ensure compliance. (BLM B-4.3)
  • Cut and fill slopes will be minimized by a combination of benching and following natural topography where possible. (BLM B-4.9)
  • New access roads and soil disturbance will be avoided or minimized in all areas designated as having high erosion hazards or potential slope instability. If the Authorized Officer, after consultation and review of alternatives (including helicopter or helicopter assisted construction), deems the proposed new access road feasible, design plans must be submitted for approval, in writing, prior to construction. (BLM B-3.1. Note: Text here omits references to specific figures and maps in the original (1987-88) DEIR and DEIS.)
  • New access roads, which are required, will be designed to minimize ground disturbance from grading. They will follow natural ground contours as closely as possible and include specific features for road drainage, including water bars on slopes over 25 percent. Other measures could include drainage dips, side ditches, slope drains, and velocity reducers. Where temporary crossings are constructed, the crossings will be restored and repaired as soon as possible after completion of the discrete action associated with construction of the line in the area. (BLM B-3.2)
  • New access road construction will be kept to a minimum.
Prime or Unique Farmlands
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Public Health and Safety
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Erosion control and hazardous material plans will be incorporated into the construction bidding specifications to ensure compliance. Soil contamination could result of from improper handling and/or storage of hazardous materials during construction activities
  • P-2 Residual pesticides and or herbicides could be encountered during grading or excavation in agricultural areas
  • P-3 Previously unknown contamination could be encountered during grading or excavation
  • P-4 Soil contamination could result from accidental spill or release of hazardous materials during operations and maintenance
 
Recreation
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Vehicular travel must be on established roads to the maximum extent practicable. Any off-road vehicle use should be strongly discouraged. This will benefit many of the species covered by the [Coachella Valley Multiple Species Habitat Conservation] plan. (SCE) Impacts in crossing of the KOFA NWR (Link 2) would be minimized through utilization of existing utility access (gas and transmission) roads during the construction limited to
  • Link 100 crosses the Pacific Crest National Scenic Trail, causing a potential temporary impact during construction. Temporary impacts also may occur where Link 102 crosses Noble Creek Regional Park and the Oak Valley Golf Course. Mitigation for construction includes avoiding high use periods and holidays. Mitigation for operation would require construction using structures placed parallel to existing structures to span and avoid displacement of recreational facilities. (SCE)
CloseNew access road construction will be kept to a minimum. (BLM B 1.2)
Threatened and Endangered Species
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

 
CloseAccess - To the maximum extent possible, access for transmission line construction and maintenance should occur from public roads and designated routes.

Disturbed areas - To the maximum extent possible, transmission pylons and poles, equipment storage areas, and wire-pulling sites should be sited in a manner that avoids desert tortoise burrows. Restoration - Whenever possible, spur roads and access roads and other disturbed sites created during construction should be recontoured and restored. Ravens - All transmission lines should be designed in a manner that would reduce the likelihood of nesting by com- mon ravens. Each transmission line company should remove any common raven nests that are found on its structures. Transmission line companies must obtain a permit from USFWS's Division of Law Enforcement Migratory Birds to take common ravens or their nests. No clearing of or other disturbance to riparian habitats. If unavoidable, riparian habitats must be replaced or restored. This action will benefit several riparian bird species including summer tanager, yellow warbler, yellow breasted chat, least Bell's vireo, and southwestern willow flycatcher. Avoid impact to mesquite-dominated habitats to protect crissal thrasher. Minimize impact to or removal of creosote bush to benefit Le Conte's thrasher. Avoid any alterations to the vegetation structure of Washington fan palm oases to benefit southern yellow bat. Avoid any alterations of mesquite hummock habitat to benefit Coachella Valley round-tailed squirrel. Wash communities along the entire route and sand dune communities in the Coachella Valley (see Map 10-AZ in the Draft SEIS and Figure 4.5-1 in the CPUC Draft EIR, 1987) will be spanned to the extent possible. Prior to construction activities, the Holder shall have a qualified tortoise biologist present a class or briefing to con- struction workers. Subjects addressed shall include tortoise sensitivity to human disturbance, daily and seasonal activity patterns, and proper handling for removal from roadways.

The Holder shall hire a qualified tortoise biologist to conduct daily inspections of roads and work areas within tortoise habitat during the tortoise season of activity (February 15 to June 15, July 15 to October 15). Tortoises found to be in jeopardy will be removed to a nearby site. Tortoises may be held for short periods, if judged necessary, to allow con- struction crews to pass through an area. The Holder will provide proper facilities for such temporary holding. The Holder shall restrict the speed on all roads within tortoise habitat to a maximum of 25 miles per hour. The Holder is responsible for ensuring compliance with this limit by its employees. Within tortoise habitat in California, spur roads shall not be bladed except where necessary to allow access for con- struction vehicles. Required vehicles shall enter on one pathway which is flagged and developed only by the passage of vehicles crushing vegetation. The spur shall be flagged by a qualified tortoise biologist prior to use. The spur shall avoid tortoise burrows and large perennial plants, yet be as short as possible within these requirements. Due to the presence of silty soils in Arizona, blading may occur. Any desert tortoise observed on access roads or work areas will be moved immediately 100 yards away from the roadway into safe areas.

In areas considered to comprise suitable tortoise habitat, or other areas where tortoise are observed, all access roads and tower construction sites will be surveyed by a qualified biologist to delineate burrows or individuals for protection. Burrows near construction sites will be clearly delineated on the ground. Road, footing, and work area alignments should be modified to the extent possible to avoid aversely affecting any tortoise burrows encountered during these surveys. Where tortoise burrows will be unavoidably destroyed, they should be excavated carefully using hand tools, under the supervision of a field biologist with demonstrated prior experience with this species. See Map 11-AZ in Appendix F in the Draft EIS (1988) and Figure 4.5-2 in the Devers–Palo Verde No. 2 EIR (1987). Also see Appendix E for link and milepost descriptions and mitigation measures.
Vegetation
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

CloseScreening vegetation shall be planted along the east side of Salome Highway between mile markers 39 and 40. Vegetation shall be comprised of native species and shall be selected to achieve heights and screen effectiveness comparable to that shown in Figure D.3-30B (see enclosed CD). SCE shall submit a Screening Plan demonstrating compliance with this mea- sure to the CPUC for review and approval at least 90 days prior to installing the landscape screening. If the CPUC notifies SCE that revisions to the Plan are needed before the Plan can be approved, within 30 days of receiving that notification, SCE shall prepare and submit for review and approval a revised Plan. The Screening Plan shall include but not necessarily be limited to:
  • An 11”x17” color simulation of the proposed landscaping at 5 years
  • A plan view to scale depicting the project and the location of screening elements
  • A detailed list of any plants to be used; their size and age at planting; the expected time to maturity, and the expected height at five years and at maturity.
SCE shall complete installation of the screening prior to the start of project operation. SCE shall notify the CPUC within seven days after completing installation of the screening, that the screening components are ready for inspection.
 
Visual Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.