U C S B OFFICE OF CAMPUS PLANNING & DESIGN. Notice of Impending Development. March Main Campus Infrastructure Renewal -Phase 1C Project

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1 U C S B OFFICE OF CAMPUS PLANNING & DESIGN E H A UNIVERSIT T Y LET T H E RE 186 OF BE 8 LIGH T CALIFORNIA University of California Santa Barbara March 2016 Notice of Impending Development Main Campus Infrastructure Renewal -Phase 1C Project

2 NOTICE OF IMPENDING DEVELOPMENT UNIVERSITY OF CALIFORNIA, SANTA BARBARA Main Campus Infrastructure Renewal Project Phase 1C-Lagoon Road Storm and Seawater Drainage Pipes Table of Contents 1.0 INTRODUCTION BACKGROUND PROJECT DESCRIPTION PROCEDURE ENVIRONMENTAL REVIEW CONSISTENCY WITH THE 2010 LONG RANGE DEVELOPMENT PLAN REFERENCES List of Attachments Appendix A: Figures 1 through 8--Project Plans Appendix B: UCSB Lagoon Hydrology Report Penfield and Smith 2008 and 2011 Appendix C: CCBER Lagoon Water Quality Assessment 2011 Appendix D: Outfall Sampling Results for the University of California, Santa Barbara, AECOM, September 2015 Appendix E: Project Plans with 100-year erosion rate Appendix F: Interested Persons List and Public Notice Appendix G: Addendum to the 2007 Final IS/MND Main Campus Infrastructure Renewal Project Appendix H: Chancellor approval documentation Appendix I: 2010 LRDP Consistency Table i

3 ii Notice of Impending Development University of California, Santa Barbara Main Campus Infrastructure Renewal Project Phase 1C-Lagoon Road Storm and Seawater Drainage Pipes

4 1.0 INTRODUCTION This Notice of Impending Development (NOID) has been prepared for Phase 1C of the Main Campus Infrastructure Renewal Project (MCIRP) on the Main Campus of University of California (University or UCSB), Santa Barbara. This project is an addition to Phase 1, approved by the California Coastal Commission (CCC) in 2009 (NOID 4-09) and would share a relatively common trench to sewer and gas line installation approved in NOID The phased infrastructure renewal program has been developed to address deficiencies in the natural gas and potable water distribution systems, sanitary sewer collection system, and the storm drainage system. 2.0 BACKGROUND The Infrastructure Renewal Project for the Main Campus of the University of California at Santa Barbara (UCSB) is for the replacement of certain underground utility distribution and collection pipelines. The utilities designated for replacement were identified as being in deteriorated condition and/or undersized to adequately serve the existing development located on the Main Campus. These lines have been proposed to increase system reliability by providing looped pipeline systems, or to improve existing service capabilities. Many of the core infrastructure system facilities serving the Main Campus are 30 to 50 years old, and improvements to the existing utility lines have generally been made on an incremental basis to serve campus development. In addition there are five storm water outfalls (four along Lagoon Road and one along Ocean Road) and one seawater outfall (along Lagoon Road) that drain to the Pacific Ocean which may be contributing to bluff erosion. In 2003 the University received a letter from the Regional Water Quality Control Board recommending the ocean bluff outfalls be removed and storm and sea water be diverted to the Campus Lagoon. In 2004, UCSB undertook a comprehensive review of the Main Campus infrastructure systems to identify deficiencies and to outline a strategy for improving those systems. As a result, a phased infrastructure renewal program has been developed that addresses the following utilities: Natural Gas Distribution System Potable Water Distribution System Sanitary Sewer Collection System Storm Drainage System Phase 1 was approved by the CCC in 2009 (NOID 4-09). Due to a lack of funding for the entire Phase 1 project, Phase 1 was split into Phase 1A and 1B. Phase 1A was funded and constructed in 2010 and that construction consisted primarily of installation of a 48-inch diameter storm drain pipe (north-south along Library Mall ), a continuous deflection separation (CDS) unit as a water quality treatment device, a bioswale (San Nicolas Restoration project), and a drain outfall system. The drain outfall was constructed with several rock lined pools that flow to a willow area before discharging to the Campus Lagoon. Main flows through the 48-inch storm drain pipe enter a concrete box that dissipates energy of the stormwater flows before entering the lagoon. In anticipation of the Lagoon Road storm drain, the CDS unit and outfall structures to the Campus Lagoon were designed for the additional storm water flows. Phase 1B (approved NOID 4-09) is now funded and is proposed to be under construction in the summer of Funding is available for some additional infrastructure work and the campus is 1

5 proposing to install the Lagoon Road storm and seawater pipelines as Phase 1C. Among other utilities, Phase 1B includes installation of natural gas and sewer lines along Lagoon and Channel Island Roads (sewer only along Channel Island Road near the Chancellor s Residence). In some areas the storm and sea water drains would be in a common trench with these utilities along Lagoon and Channel Island Roads (Figures 1 and 2-Appendix A). Since the gas, sewer, stormwater, and seawater would be in a common trench for some areas of the project, installation of the stormwater and seawater pipelines concurrently would result in fewer impacts than if the stormwater and seawater pipelines were constructed as a separate project. Other benefits of installing the Lagoon Road pipelines would be the removal of five discharge outfalls from the east ocean bluffs (four stormwater and one seawater). Removing these outfalls would reduce the transport of silt and other pollutants to the Pacific Ocean. The Regional Water Quality Control Board recommended removal of these outfalls in 2003 and it has been a campus goal for many years. Phase 1 of the Infrastructure Renewal Project (NOID 4-09) did not include the Lagoon Road storm and seawater drainage systems. 3.0 PROJECT DESCRIPTION The Lagoon Road stormwater drainage project would provide a new pipeline that would collect runoff water from the northeastern portion of the Main Campus that is presently discharged over the nearby east-facing bluff by four separate pipelines; the new stormwater pipeline would convey runoff to the Campus Lagoon instead. Starting at a location near the Main Campus east entrance, the new pipeline would extend southward beneath Lagoon Road to the intersection of Channel Islands Road. At the intersection, the new drainage pipeline would turn to the west and follow the alignment of Channel Islands Road. The new pipeline would terminate at an existing Continuous Deflective Separator (CDS) water treatment unit that was installed in conjunction with the Main Campus Infrastructure Renewal Phase 1A project in Low flow runoff from the CDS unit, which is comprised primarily of non-storm discharge (runoff from irrigation), is conveyed to the new San Nicolas Restoration Area, which provides an infiltration basin located along the northern side of the Campus Lagoon. High flow runoff from the CDS unit is discharged directly to the Campus Lagoon through a discharge structure that was also constructed as part of the Main Campus Infrastructure Renewal project Phase 1A. The proposed stormwater pipeline would be constructed of high density polyethylene (HDPE) pipeline and would have a total length of approximately 3,051 feet. Major segments of the proposed drainage system are described below, and detailed construction plans depicting the proposed pipeline route are provided on Figures 3 through 10 (Appendix A). Lagoon Road Segment. This segment of the proposed stormwater pipeline would be 2,211 feet in length, and would extend beneath Lagoon Road between a manhole located in Lagoon Road east of Elings Hall to the north and the intersection of Lagoon Road and Channel Islands Road to the south (Figures 3 through 7, Appendix A). The new drainage pipeline would be 24 to 42 inches in diameter, and would be installed approximately seven to 12 feet below the ground surface. At various locations along this segment of the pipeline route, six new or reconstructed manholes would be installed. Each of the four existing stormwater drainage pipes that discharge runoff water over the campus bluffs would be abandoned in place by capping the pipelines at locations near the proposed 2

6 pipeline. The portions of the existing drainage pipes that extend beyond the face of the campus bluffs would be removed. The overhanging pipelines would be removed during a low tide and by using a mechanical lift to provide access to the existing pipe. Beach access for the mechanical lift would be provided from Campus Point. Only the portions of the existing drainage pipelines that extend away from the bluff face would be removed to minimize disturbance of the bluff and the bluff face. Channel Islands Road Segment. This segment of the proposed stormwater pipeline would be approximately 840 feet in length and would extend between Lagoon Road and an existing CDS unit located within the Channel Islands Road roadway near the southwest corner of the De la Guerra Commons building (Figures 8 and 9, Appendix A). The HDPE pipeline installed in this project segment would be located near the southern edge of Channel Islands Road, would be 42 inches in diameter, and the new pipeline would be approximately 14 feet below the ground surface increasing to 22 feet as the pipeline approaches the CDS unit. Two new manholes would be constructed along the Channel Islands Road segment of the new pipeline. Campus Lagoon Discharge. After passing through the existing CDS unit, dry season low flows (irrigation runoff) would be directed to the San Nicolas Wetland Restoration Area infiltration basin. Higher runoff flows from storm events would be discharged directly to the Lagoon through an existing discharge structure. The San Nicolas Wetland Restoration Area is approximately onehalf acre in area and is located along the northern shore of the Campus Lagoon near the San Nicolas residence hall. Low runoff flows, such as those that occur during the dry season, are discharged to the infiltration basin because these low flows generally have the highest concentration of pollutants, and the biofiltration capabilities provided by the basin improve the quality of the runoff water before it enters the lagoon. Lagoon Road Seawater Drain Line Seawater is used for research purposes in the Marine Science Building and Biology II, and for cooling at the Ocean Science Education Building. This seawater is pumped from the ocean at Campus Point and discharged into pipes after use. The Lagoon Road seawater pipeline would collect excess seawater that is presently discharged over the east-facing bluff. The excess seawater would instead be conveyed and discharged into the Campus Lagoon. The proposed seawater drainage pipeline would be constructed of 10-inch diameter HDPE pipeline, have a total length of approximately 1,520 feet, and would require the construction or reconstruction of six manholes. Major segments of the proposed drainage pipeline are described below, and detailed construction plans depicting the proposed pipeline route are provided on Figures 6 through 8. The existing seawater drainage pipes would be abandoned in place and the portions of the pipes that extend beyond the face of the campus bluff would be removed in a manner similar to the removal of existing stormwater drain pipes. The seawater discharge pipes to be removed from the bluff face include two four-inch pipes that are no longer actively used, and a corrugated plastic drop structure pipe that hangs down the cliff face. UCen Road Segment. The proposed seawater pipeline route would start by connecting to an existing seawater discharge pipeline located in UCen Road near the southwest corner of the Ocean Science Education Building (Figure 6, Appendix A). The seawater is pumped from the Pacific Ocean through a pipeline and pump house located on Campus Point beach to tanks within Bio 1 and OSEB buildings. The seawater is used for research and discharged through a pipeline to the ocean bluff. This new pipeline would extend eastward beneath UCen Road approximately 186 feet to a new manhole in Lagoon Road. 3

7 Lagoon Road Segment. At Lagoon Road, the new seawater pipeline would follow the same route as the proposed stormwater drainage pipeline. The Lagoon Road segment of the new seawater pipeline would be approximately 904 feet in length and would include the construction of two new manholes. Channel Islands Road Segment. Starting at a new manhole in Lagoon Road, the seawater pipeline would turn west and extend approximately 130 feet along the southern edge of Channel Islands Road in a landscaped area (Figure 8, Appendix A). This segment of the new pipeline would terminate at a new manhole. Pearl Chase Garden Segment. Starting at the new manhole located along the south side of Channel Islands Road, the seawater pipeline would extend to the south, then turn to the southwest at another new manhole. In total, this pipeline segment would be approximately 360 feet in length and would terminate at an existing 15-inch storm drain that discharges to the Campus Lagoon (Figure 8). The connection to the existing drainage pipeline would occur at a point that is approximately 15 feet north of the Campus Lagoon. HYDROLOGY AND WATER QUALITY A Lagoon Hydrology Study was prepared in August 2008 and an Addendum in March 2011 (2008, 2011 Penfield and Smith-Attached Appendix B) to analyze the hydrologic impacts that 2010 LRDP development may have on the Campus Lagoon. Part of the study considered the watershed and seawater currently draining to the Pacific Ocean and proposed to be diverted to the campus lagoon by installing a storm drain pipe in Lagoon Road. In addition, the UCSB Cheadle Center for Biodiversity and Ecological Restoration conducted a water quality study of the Campus Lagoon (2011 CCBER-Attached Appendix C). The Project would convey additional storm and seawater to the Campus Lagoon. The hydrology study concluded the additional stormwater and seawater directed to the Campus Lagoon would not result in a substantial increase in water levels in the Lagoon during major storm events. Water levels in the Campus Lagoon are controlled by various drain pipes to the beach. During large storms, water would overtop a berm/access road along the southern perimeter of the lagoon and allow water to drain to the adjacent beach and ocean. This would likely take place in a 100 year storm. There would be no impacts from flooding because the Project s contribution to increased water levels would be cumulatively minor. The water quality study determined that the Campus Lagoon water quality is impaired with high levels of phosphorous and nitrogen. Water quality testing also showed high levels of copper. The study determined that the proposed addition of storm water would carry the same pollutant load; however, water quality would improve if it were to be filtered through a bioswale. Since the preparation of the report, the San Nicolas Restoration project was implemented as part of Infrastructure Phase 1A. Low storm water runoff flows through water quality control features including a bioswale, vegetated rock rip rap, and a willow area. A CDS unit was also installed as part of Phase 1A and the additional Project stormwater would flow through this CDS prior to being released into the bioswale and the lagoon. In addition, the study concluded that the addition of seawater to the lagoon may improve water quality by diluting the lagoon with water that does not carry the pollutant load of stormwater runoff. The 2011 water quality study prepared by CCBER has been updated in (samples were taken in 2015 and 2016). The updated water quality assessment will show water quality results 4

8 after the installation of the CDS unit, the lagoon outfall, and San Nicolas Restoration Area/Bioswale. Data analysis is not complete at the time of this writing and a report is forthcoming. In 2015 certain stormwater outfalls on campus were sampled to detect illicit discharges (required by SWRCB Water Quality Order No DWG NPDES General permit No. CASOOOOO4, Section F.5.d.2, Field Sampling to Detect Illicit Discharges). Two of the outfalls sampled drain into the Campus Lagoon. The analytical results from the laboratory indicated all analyzed parameters were below the action level concentrations set forth in the WQO. See attached report from AECOM 2015-Appendix D. The project is covered under the NPDES General Permit for Construction Stormwater and a Notice of Intent will be filed for the project. A Stormwater Pollution Prevention Plan has not been prepared yet for Phase 1C, however the SWPPP for Phase 1B is attached electronically. Since parts of Phase 1B and 1C overlap, the SWPPP for Phase 1B is relative. A project specific SWPPP will be prepared for Phase 1C by the contractor when hired. Elimination of the existing discharges over the campus bluffs would have a long term beneficial impact to water quality in the Pacific Ocean. BLUFF EROSION SETBACKS Approximately 600 of the 3,051 linear feet of storm drain pipeline and of the 1,520 linear feet of seawater drain pipeline would be within an area calculated as a 100 year bluff erosion zone (Plan Sheets SD3 and SD4-Appendix E). Bluff erosion rates have been calculated to be anywhere from two inches to one foot per year (2010 LRDP FEIR Page 4.5-6). There are varying calculations depending on soil type, bluff stability, and sea level rise. Average bluff erosion rates combined with sea level rise over a period of 100 years could potentially result in sea cliff retreat to approximately 50 feet or more. These estimations vary between different studies and conditions. Calculations of 6-inches per year are used in the Phase 1C analysis based on estimates by Dr. Art Sylvester from the UCSB Geology Department. The stormwater and seawater pipeline would be installed within Lagoon Road ranging from approximately 30 to 200 feet from the bluff edge. There is the potential, in 100 years, for the bluff to erode beyond the point of the new pipelines. However, the removal of the existing storm and sea water outfalls over the bluff would potentially reduce bluff erosion rates. On balance the Project would have a beneficial effect in regard to minimizing bluff erosion and instability. In addition, in accordance with LRDP Policy GEO-4 (3) (requiring relocation of utilities), the utilities could be relocated in the future if bluff erosion advances to that point. Impacts would be less than significant and no new mitigation measures are required. PROJECT IMPLEMENTATION AND SCHEDULE Earthwork quantities:--there would be 1,520 linear feet of seawater pipeline and 3,051 linear feet of stormwater pipeline installed. There would be a total, between the two lines, 7,536 cubic yards of cut (excavation) and 6,575 cubic yards of fill (including native soil and imported sand bedding). Approximately 2,819 cubic yards of sand bedding would be imported and 3,809 cubic yards of native soil would be exported. 760 cubic yards of asphalt/concrete and aggregate base would also be exported. See the table below for the breakdown. 5

9 Stormwater Pipeline Installation Cut and Fill Quantities: Excavation (Native Soil) CY 6,860 Fill CY 5902 Native Soil Backfill CY 3468 Sand Bedding Fill CY 2434 IMPORT Sand Bedding Fill CY 2434 EXPORT Native Soil Cut CY 3392 AC & Aggregate Base CY 582 Seawater Pipeline Cut and Fill Quantities Excavation (Native Soil) CY 676 Fill CY 673 Native Soil Backfill CY 259 Sand Bedding Fill CY 385 IMPORT Sand Bedding Fill CY 385 EXPORT Native Soil Cut CY 417 AC & Aggregate Base CY 179 Asphalt and grass/turf would be replaced. Construction equipment staging will take place within the fenced area of the work zone/project area. Essentially equipment will be left within the fenced project site in the roadway when the site is inactive (nighttime and weekends). The construction contractor trailer is located on the dirt area where trailer 411 was demolished (UCS-NOID ). Project-related construction activities are anticipated to start in late summer It is anticipated the project would take approximately six months to complete. 4.0 PROCEDURE This Notice of Impending Development is being distributed to local governments, community groups, and interested parties pursuant to California Code of Regulation Section A list of interested parties and a copy of the public notice are attached (Appendix F). Section of the Coastal Act and Article 14, Section through Section of the California Code of Regulations govern the Coastal Commission s review of subsequent development where there is a certified LRDP. Section 13549(B) requires the Executive Director or his designee to review the Notice of Impending Development within ten days of receipt and determine whether it provides sufficient information to determine if the proposed development is consistent with the certified LRDP. The Notice is deemed filed when all necessary supporting information has been received. Within thirty days of filing the Notice of Impending Development, the Executive Director shall report to the Commission and make a recommendation regarding the consistency of the proposed development with the certified LRDP. After a public hearing, by a majority of its members present, the Commission shall determine whether the development is consistent with the certified LRDP and whether conditions are required to bring it into conformance with the LRDP. No 6

10 construction shall commence until after the Commission votes to render the proposed development consistent with the certified LRDP. 5.0 ENVIRONMENTAL REVIEW Consistent with the requirements of the California Environmental Quality Act (CEQA), an Addendum to the Initial Study/Mitigated Negative Declaration (IS/MND) was prepared for Phase 1C (SCH# ). The Addendum is attached in Appendix G. The proposed Phase 1C project and Addendum was approved by the University of California, Santa Barbara Chancellor in March 2016 (see attached approval documentation in Appendix H). A summary of the potentially significant environmental impacts of the MCIRP project, and the mitigation measures that are included in the MND and Addendum, is provided below. Please refer to the Final MND for a more complete description of potential impacts and proposed mitigation measures. AESTHETICS Trenching for installation of the seawater line through Pearl Chase Garden has the potential to impact trees that are potentially a visual resource on the Main Campus. This impact can be reduced to a less than significant level with implementation of Mitigation Measure BIO 5a through 5b which provides performance standards to protect the trees. These standards include avoiding trenching within 20 feet of the trees, fencing the trees with the guidance of an arborist, cleanly cutting roots encountered during trenching, keeping construction vehicles clear of trees, ensuring exposed roots are dry before backfilling trenches, and designating a tree maintenance monitor to monitor construction activities. There is no tree removal for the proposed Phase 1C project. AIR QUALITY IMPACTS Construction activities at the project site have the potential to result in fugitive dust generation impacts resulting from site preparation and grading activities. Project Mitigation Measures AQ-1 through 5 requires the implementation of standard dust control measures during project construction. These Mitigation Measures would reduce potential dust impacts to a less than significant level. BIOLOGICAL RESOURCES The proposed Project would have no direct impacts to coastal wetlands, such as coastal freshwater marsh and saltmarsh habitats located near the outfall at San Nicolas Wetland Restoration Area because no Project-related construction would occur in the Campus Lagoon or along its shoreline. No construction activities are required along the Lagoon s shoreline because proposed storm and seawater pipelines would be connected to existing pipelines and Lagoon discharge facilities. Proposed construction activities to connect the proposed Lagoon Road stormwater pipeline to the CDS unit in Channel Islands Road and the underground pipe to San Nicolas Wetland Restoration would occur approximately 250 feet from wetland areas located along the Lagoon shoreline, and approximately 50 feet from wetland habitat recently created as part of the San Nicolas Wetland Restoration Area project. No wetlands areas were identified by the 2010 LRDP EIR (EIR Figure 4.3-2) in the vicinity of Pearl Chase Garden and where the 7

11 proposed Lagoon Road seawater pipeline would be connected to an existing pipeline that discharges to the Lagoon. In addition, new stormwater volumes entering the Campus Lagoon will flow through the CDS unit and the stormwater quality management system constructed at the outfall, and potential pollutant loads would be eliminated or reduced. No biological resources would be impacted from the new stormwater runoff. Implementation of mitigation measures BIO-2a and BIO-2b in the 2007 Final IS/MND require the proposed project to implement appropriate best management practices to minimize erosion and sedimentation impacts. In addition, construction activities at any particular location along the proposed pipeline construction corridors would be limited in duration, which would also minimize the potential for erosion-related impacts. Upon the completion of construction activities, disturbed areas would be repaved, landscaped or otherwise restored to a condition similar to pre-project conditions. Therefore, with implementation of mitigation measures, the proposed Project would have less than significant impacts to wetland habitats. Project-related construction noise during the typical bird nesting season has the potential to disturb birds nesting in the trees at Pearl Chase Garden Final IS/MND mitigation measure BIO 4a requires the trees to be surveyed for nesting activity prior to construction if construction is within bird nesting season (February 15 to September 1). Implementation of 2007 Final IS/MND mitigation measure BIO 4a would reduce potential impacts to nesting birds to a less than significant level. As stated in the Aesthetics analysis, Project-related construction activities have the potential to impact trees adjacent to the proposed seawater pipeline route through Pearl Chase Garden. Mitigation measure BIO-5 identified in the 2007 Final IS/MND would require special measures to protect tree root zones during trenching activities. These mitigation measures would reduce impacts to less than significant with mitigation. CULTURAL RESOURCES The 2007 Final IS/MND analyzed impacts to cultural resources (Section 6.5) and concluded the potential for significant impacts to cultural resources would be remote. Most of the proposed Project would be installed beneath paved roadways and due to previous road construction activities, it is unlikely pipeline installation would result in significant impacts to archaeological resources. Trenching and excavation to install the new stormwater and seawater pipelines would be deeper than the trench to install the gas and sewer. There is the potential for the project to impact undisturbed soil Final IS/MND mitigation measure CUL-1a requires earth disturbing work to be temporarily suspended in the event archeological resources are identified during excavation. This mitigation measure would be implemented in the unlikely event archeological resources are discovered during trenching and excavation. GEOLOGY AND SOILS The Project would require a significantly deeper trench to install the storm water drain pipe in Lagoon Road than the sewer and gas lines described in the 2007 Final IS/MND Project and NOID The trench for the storm and sea water drain lines would between 14 feet and 22 feet deep and the previously approved sewer and gas line trenches would be approximately two to three feet deep. However there would still be no impact related to potential fault rupture impacts because there are no Alquist-Priolo (i.e. active) faults located on Main Campus and none of the proposed pipelines would be located across or astride any of the faults located on or near the 8

12 Main Campus, and effects from ground-shaking and liquefaction would remain less than significant. The proposed construction corridor along Lagoon Road would extend parallel to the Main Campus east bluffs, which are feet in height. Construction operations in Lagoon Road would be setback from the bluff edge by at least 30 feet to more than 100 feet and would not result in the disturbance of the bluff (see attached figures in Appendix E). After the completion of construction activities, the Lagoon Road construction corridor would be repaved and there would be no long-term change to drainage or other existing conditions in the project area. As stated above, bluff erosion rates have been calculated to be anywhere from two inches to one foot per year (2010 LRDP FEIR Page 4.5-6). Average bluff erosion rates combined with sea level rise over a period of 100 years could potentially result in sea cliff retreat to approximately 50 feet or more. These estimations vary between different studies and conditions (Griggs, undated). Calculations of 6-inches per year are used in the Phase 1C analysis based on estimates by Dr. Art Sylvester from the UCSB Geology Department. The stormwater and seawater pipeline would be installed within Lagoon Road approximately 30 to 100 feet from the bluff edge. There is the potential, in 100 years, for the bluff to erode beyond the point of the new pipelines. However, the removal of the storm and sea water outfalls over the bluff would potentially reduce bluff erosion rates. On balance the Project would have a beneficial effect in regard to minimizing bluff erosion and instability. In addition, in accordance with LRDP Policy GEO-4 (3) (requiring relocation of utilities), the utilities could be relocated in the future if bluff erosion advances to that point. Impacts would be less than significant and no new mitigation measures are required. Proposed construction activities would include capping the existing drain pipes that extend beyond the face of the bluff. Only the exposed portion of the drain pipes would be removed and access to the pipes would be provided using a mechanical lift from the beach below. Equipment would be on the beach during low tide and the work would be conducted within approximately 2 hours or less. Therefore, the removal of the existing pipes would not substantially impact the campus bluffs and would result in a less than significant impact related to the stability of the bluffs. The removal of the existing pipelines and the discontinuation of drainage discharges over the bluff face would remove a potential long-term source of erosion, which would have the beneficial effect of protecting the stability of the bluffs. The Project would be covered under the statewide NPDES construction general permit and a Storm Water Pollution Prevention Plan would be prepared. Impacts would remain less than significant. HYDROLOGY AND WATER QUALITY As stated above in the project description, a Lagoon Hydrology Study was prepared in August 2008 and an Addendum in March 2011 (2008, 2011 Penfield and Smith) to analyze the hydrologic impacts that campus LRDP development may have on the Campus Lagoon (attached). Part of the study considered the watershed and seawater currently draining to the Pacific Ocean and proposed to be diverted to the campus lagoon by installing a storm drain pipe in Lagoon Road. In addition, the UCSB Cheadle Center for Biodiversity and Ecological Restoration conducted a water quality study of the Campus Lagoon (2011 CCBER). Updated water quality studies have been conducted and are forthcoming. The Project would convey additional storm and seawater to the Campus Lagoon. The hydrology study concluded the additional stormwater and seawater directed to the Campus Lagoon would 9

13 not result in a substantial increase in water levels in the Lagoon during major storm events. Water levels in the Campus Lagoon are controlled by various drain pipes to the beach. During large storms, water would overtop a berm/access road along the southern perimeter of the lagoon and allow water to drain to the adjacent beach and ocean. This would likely take place in a 100 year storm. Impacts from flooding would be less than significant because the Project s contribution to increased water levels would be cumulatively minor. The water quality study determined that the Campus Lagoon water quality is impaired with high levels of phosphorous and nitrogen. Water quality testing also showed high levels of copper. The study determined that the proposed addition of storm water would carry the same pollutant load; however, water quality would improve if it were to be filtered through a bioswale. Since the preparation of the report, the San Nicolas Restoration project was implemented as part of Infrastructure Phase 1A. Low storm water runoff flows through water quality control features including a bioswale, vegetated rock rip rap, and a willow area. A CDS unit was also installed as part of Phase 1A and the additional Project stormwater would flow through this CDS prior to being released into the bioswale and the lagoon. In addition, the study concluded that the addition of seawater to the lagoon may improve water quality by diluting the lagoon with water that does not carry the pollutant load of stormwater runoff. Impacts to water quality would be less than significant. Elimination of the existing discharges over the campus bluffs would have a long term beneficial impact to water quality in the Pacific Ocean. NOISE Mitigation measures NOISE-1a-d requiring coordination/timing of construction and demolition activities creating excessive noise or vibration levels and shielding of stationary construction equipment would substantially reduce the noise and vibration impacts generated by the proposed project. Construction near residential areas will be limited to the hours between 7:00 A.M. and 5:00 P.M and will not occur on weekends or holidays. Due to the short-term nature of the construction phase in any particular area for the project, these measures would be adequate to reduce the project s construction-related noise to a less than significant level. TRANSPORTATION AND TRAFFIC Construction activities would result in the temporary roadway lane closures, and temporary closures of on-campus bike paths and pedestrian walkways. TRF-1a-b and TRF-2a require the construction contractor to notify Transportation Services of the start date of construction activities, to install the appropriate traffic safety devices, secure construction sites at the end of each working day, and post appropriate signage when parking lots, the bus circle, or any roadways would be temporarily closed or detoured. Coastal access would not be impacted. Consistent access to the Parking Lot 5 and 6 would be maintained. 6.0 CONSISTENCY WITH THE 2010 LONG RANGE DEVELOPMENT PLAN CONSISTENCY WITH THE LRDP The proposed project is a utility repair, replacement, and maintenance project and would not induce campus growth or be in conflict with any land use designations in the 2010 LRDP. A 10

14 majority of the project would be in the Academic Uses land use designation. A small portion of the project is through Open Space (Pearl Chase Garden). All construction would be short term and would have temporary impacts. See attached (Appendix I) table providing an analysis of the project s consistency with the policies of the 2010 LRDP. PUBLIC ACCESS The LRDP implements Coastal Act through by requiring that new development not generate traffic that exceeds roadway capacity of existing coastal access routes on Campus and therefore restrict or impede coastal access to or along the coast. The LRDP also requires adequate public access parking be provided for new development. The project would not impede or change public access on campus, or create new parking demand. Access along Lagoon Road would be maintained during the project construction. Bicycle and pedestrian paths along the east bluff would remain open and unblocked. RECREATION In accordance with Coastal Act through 30224, the project would not impact the use of oceanfront land for recreation and does not include any development that would impact wateroriented recreational uses. The campus beaches would remain open to the public. The proposed project does not limit recreational use of oceanfront land. MARINE ENVIRONMENT The project is not within the marine resource areas identified in the 2010 LRDP. The stormwater pipeline would connect with an existing CDS unit and flow through a water quality treatment facility at the outfall into the Campus Lagoon. Water quality from runoff would be improved from the existing quality due to the restored area and natural water filtration areas. There would be no impact to Marine Resources. Additonal seawater into the Campus Lagoon could be beneficial as described in Section 5.8 above. The proposed project would be in accordance with Coastal Act through ( for Bolsa Chica wetlands is not applicable.). LAND RESOURCES Coastal Act requires protection of ESHA s from disruption by adjacent development. The seawater drain pipe would be installed through Open Space in Pearl Chase Garden. All disruption would be short term and temporary and the lawn would be replaced at Pearl Chase Garden. LRDP Land Use Designations The primary land use designation for Phase 1C is for Academic Uses. A portion of the project, as described above, would be through Open Space. The proposed project is underground and is a repair, replacement, and maintenance project impacts will be short term and temporary, the proposed project is consistent with these land use designations Development Guidelines The project has been designed consistent with applicable development standards and guidelines established in the LRDP. All pipelines will be buried, mostly in areas where utilities currently exist. Utility corridors would be backfilled and returned to its original condition. 11

15 Coastal Act states reasonable mitigation measures shall be required to protect archaeological and paleontological resources. Consistent with the LRDP identifies coastal policies/lrdp EIR mitigation measures that have been adopted by the University to protect unidentified cultural resources. No cultural or paleontological resources have been identified at the proposed project site. However, LRDP Policies would be followed in the event cultural resources are discovered during excavation for site utilities and site preparation. Cultural Resource Mitigation Measure CUL-1 in the Final IS/MND would be implemented. NEW DEVELOPMENT The LRDP contains land use designations, development guidelines, and policies to ensure the location of new development will not adversely affect coastal resources to implement Coastal Act (a). In accordance with Coastal Act the project will not affect the view corridors to and along the coast..thus, the existing policies in the 2010 LRDP are sufficient to address the impact of the development of the proposed project. Consistent with Coastal Act the new development maintains public access to the coast. The proposed project would not impact existing public access to areas containing coastal resources. 7.0 REFERENCES AECOM 2015 Outfall Sampling Results for the University of California, Santa Barbara. Prepared for UCSB Environmental Health and Safety. Foster, Telli 2015 Personal Communication with Telli Foster, Project Manager, Design and Construction Services, University of California, Santa Barbara. Penfield and Smith (now Stantec) 2008 UCSB Lagoon Hydrology Report. Prepared by Penfield and Smith dated August 28, Stantec Percent Construction Documents. Infrastructure Renewal Project Phase 1C prepared by Stantec dated February Project No. FM#150512L/ Stratton, Lisa 2011 Campus Lagoon Water Quality Assessment. Prepared by Lisa Stratton, Ph.D. and Nathan Simons. Cheadle Center for Biodiversity and Ecological Restoration. July