Projects
By Sectors
- Water Resources
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By Services
- CEQA/NEPA Compliance
- Biological Resource Studies
- Cultural Resource Management
- Habitat Restoration
- Landscape Architecture
- Regulatory Permitting
- Compliance Monitoring
- Acoustics & Noise Control
- Air Quality & GHG
- Visual Analysis
- Agricultural Resource Evaluations
- Waste Management Plans
- Fire Management Services
Ocotillo Wind Energy Project
HELIX Environmental Planning is providing biological consulting services for Pattern Energy Group’s 265 megawatt Ocotillo Wind Energy Facility project located
King Fire Restoration and Botanical Surveys
To assist the U.S. Forest Service with their habitat restoration and emergency response efforts, five teams of HELIX Environmental Planning
Quarry Creek
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR) for the Quarry Creek Project and a Subsequent EIR (SEIR)
Pure Water San Diego
HELIX Environmental Planning (HELIX) produced a detailed biological constraints report addressing a 20-year, phased program that involves planning, design, and
City of San Diego As-Needed Environmental Services for Storm Water Maintenance
HELIX Environmental Planning has provided a broad range of as-needed environmental services to the City of San Diego Transportation and
LOSSAN Rail Corridor Double Track Projects
HELIX Environmental Planning (HELIX) has provided environmental services for several SANDAG Los Angeles-San Diego-San Luis Obispo (LOSSAN) Double Track projects.
San Diego County Water Authority Pipeline Relining Projects
HELIX Environmental Planning (HELIX) provided a variety of environmental services for the Water Authority’s pipeline relining projects located in the
San Miguel Habitat Management Area
HELIX Environmental Planning (HELIX) conducted biological maintenance, monitoring, and reporting activities for the Otay Water District related to the San
Miramar National Cemetery Vernal Pool Restoration
HELIX Environmental Planning (HELIX) conducted restoration monitoring of a vernal pool mitigation area located on Marine Corps Air Station (MCAS)
Tapestry Specific Plan
HELIX Environmental Planning (HELIX) prepared the Environmental Impact Report (EIR) and air quality, biological resources, GHG, and noise technical studies,
Sunrise Powerlink
The Sunrise Powerlink project is an approximately 117-mile-long project that includes a 500 kV transmission line from the Imperial Valley
Tranquillity Solar Project
HELIX Environmental Planning was contracted with the County of Fresno to provide mitigation compliance and reporting services for Recurrent Energy’s
Owens Valley Solar Energy Study
Following HELIX Environmental Planning’s (HELIX’s) successful preparation of the Inyo County Renewable Energy General Plan Amendment (REGPA) and Program Environmental
Desert Green Solar Project
The 6.3-megawatt Desert Green Solar Farm, located in Borrego Springs, began commercial operations in 2015 . Prior to construction, HELIX
Tule Wind Energy Project
HELIX Environmental Planning (HELIX) provided biological and habitat restoration services for Iberdrola Renewables’ Tule Wind Energy Project located in the
California Energy Commission As-Needed Biological Services for Solar Projects
HELIX Environmental Planning (HELIX) was under contract to Aspen Environmental Group on an as-needed basis to provide impact analyses for
Devers to Palo Verde No. 2 Transmission Line
HELIX Environmental Planning (HELIX) provided consulting services support to Aspen Environmental Group for Southern California Edison’s (SCE’s) Devers–Palo Verde No.
Pacific Gateway Cargo Center at LA/Ontario International Airport
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR) and oversaw the preparation of technical studies for an air
Commercial Retail Development at McClellan-Palomar Airport
HELIX Environmental Planning (HELIX) prepared a NEPA Environmental Assessment (EA) for a proposed retail commercial development on airport property at
Former Navy Training Center Landfill Remediation at San Diego International Airport
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR) that evaluated the remediation of the former Naval Training Center
Gillespie Field Airport
HELIX Environmental Planning (HELIX) is providing as-needed environmental consulting services including botanical surveys and habitat restoration and maintenance at Gillespie
McClellan-Palomar Airport Wildlife Hazard Assessment
HELIX Environmental Planning (HELIX) assisted C&S Engineers in a year-long Wildlife Hazard Assessment study at the McCellan-Palomar Airport located in
San Diego International Airport Master Plan
HELIX Environmental Planning (HELIX) prepared several chapters of a Master Plan Environmental Impact Report (EIR) for expansion of San Diego
Transmile Air Services Operating Agreement at March Inland Port Airport
HELIX Environmental Planning (HELIX) prepared and presented a staff report to the March Inland Port Airport Joint Powers Authority (JPA)
Establishment of the Sierra Training Area at Marine Corps Base Camp Pendleton
HELIX Environmental Planning (HELIX) managed an Environmental Assessment (EA) and a Biological Assessment (BA) that addressed a proposed new multi-purpose
P-614 Special Operations Training Group Battle Course at Marine Corps Base Camp Pendleton
HELIX Environmental Planning (HELIX) prepared a National Environmental Policy Act (NEPA) Environmental Assessment (EA) for a new training range at
Public/Private Venture Housing at Naval Base Ventura County
HELIX Environmental Planning prepared an Environmental Assessment (EA) pertaining to the implementation of a public/private venture housing privatization program at
Communication Tower at Spring Hill/Chocolate Mountains Aerial Gunnery Range
HELIX Environmental Planning (HELIX) managed an Environmental Assessment (EA) for Naval Facilities Engineering Command Southwest that evaluated a proposed 150-foot-tall
Marine Corps Air Station Miramar Grow the Force Projects
HELIX Environmental Planning (HELIX) prepared a Biological Assessment (BA) and Environmental Assessment (EA) for a proposed action that would increase
25 Area Combat Town Upgrade at Marine Corps Base Camp Pendleton
HELIX Environmental Planning (HELIX) conducted biological surveys and prepared an Environmental Assessment (EA) addressing improvements to the existing 25 Area
Public/Private Venture Housing at Twentynine Palms
HELIX Environmental Planning (HELIX) prepared an Environmental Assessment (EA) for the acquisition, renovation, construction, and maintenance of military family housing
Army National Guard Statewide Facilities National Resource Assessment
HELIX Environmental Planning (HELIX) conducted a natural resources assessment of facilities statewide for the California Army National Guard (CA ARNG).
Harmony Grove Village
HELIX Environmental Planning managed the preparation of this fast-track Environmental Impact Report (EIR) for a mixed-use development project in the unincorporated
Toscana
HELIX Environmental Planning (HELIX) provided biological services for a 961-acre master planned community project in the unincorporated area south of
Sycamore Landfill Expansion
HELIX Environmental Planning (HELIX) prepared biological studies, regulatory permitting, and environmental documentation for the expansion of the Sycamore Landfill in
Greenbriar Habitat Conservation Plan
Located within the Natomas Basin of Sacramento, the Greenbriar Development Project encompasses a 577-acre agricultural site slated for transit-oriented residential
UC San Diego Clinical and Translational Research Institute & East Campus Recreation Area
HELIX Environmental Planning (HELIX) prepared an Initial Study (IS), Environmental Impact Report (EIR), and technical studies for UC San Diego’s
Otay Hills Quarry
HELIX Environmental Planning (HELIX) is managing the preparation of an Environmental Impact Report (EIR) for a new construction aggregates extraction
SR-76 Improvement Project
HELIX Environmental Planning (HELIX) is in the second phase of construction monitoring for the SR-76 East Segment road improvements project
In-line Aircraft Fueling Station and Aircraft Parking Modifications at Marine Corps Air Station Miramar
HELIX Environmental Planning (HELIX) is providing San Diego fairy shrimp basin monitoring for the MV-22 In-line aircraft fueling station construction
Reclaimed Water Conveyance at Marine Corps Base Camp Pendleton
HELIX Environmental Planning (HELIX) is providing environmental management and construction services during the design and construction of a reclaimed water
City of San Diego Public Utilities Department, As-Needed Environmental Services
HELIX Environmental Planning (HELIX) is currently providing environmental consulting services to the City of San Diego Public Utilities Department (PUD),
Ted Williams Parkway Pedestrian Overcrossing at Shoal Creek Drive
HELIX Environmental Planning (HELIX) prepared technical studies and provided CEQA/NEPA, sustainable landscape design, and visual simulation services to the City
SR-11 & Otay Mesa East Port of Entry Program
HELIX provided environmental consulting services to evaluate the general alignment locations for State Route (SR-) 11 and a future land
Mast Park Habitat & Wetland Restoration
HELIX facilitated the design and development of a 12.7 acre habitat restoration effort in the City of Santee which will
Valiano
HELIX Environmental Planning (HELIX) is preparing environmental documentation and supporting technical studies for the construction of a residential community on
Bernardo Shores
HELIX Environmental Planning (HELIX) prepared an Initial Study/Mitigated Negative Declaration (IS/MND) and obtained permits for the proposed redevelopment of an
University Avenue Mobility Plan
HELIX prepared an Environmental Impact Report (EIR), prepared and managed preparation of supporting technical studies, and provided support for a NEPA
Padre Dam Municipal Water District As-Needed Environmental Consulting
HELIX Environmental Planning has provided as-needed environmental consulting services to the Padre Dam Municipal Water District since 2011. During that
SANDAG As-Needed Environmental Services
HELIX Environmental Planning (HELIX) has served as a subconsultant on 15 as-needed San Diego Association of Governments (SANDAG) contracts over
I-5 North Coast Corridor
HELIX Environmental Planning (HELIX) supported Caltrans District 11 on the I-5 North Coast Corridor (I-5 NCC) Environmental Impact Report/Environmental Impact
One Paseo
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR) addressing a proposed mixed use development located in the City
San Ysidro Port of Entry Expansion & Reconfiguration
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Statement (EIS), Supplemental EIS, and prepared and managed supporting technical studies related
Otay Mesa Cross Border Xpress
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR), as well as the federal Environmental Assessment (EA) necessary to
U.S. Navy Indefinite Delivery, Indefinite Quantity NEPA Compliance Contract
HELIX Environmental Planning (HELIX) is providing NEPA compliance and related environmental services to Naval Facilities Engineering Command (NAVFAC) Southwest and
Westfield Carlsbad
HELIX Environmental Planning (HELIX) completed an Environmental Impact Report (EIR) for the expansion of the existing Plaza Camino Real shopping
Gateway Station West Transit Oriented Development
HELIX Environmental Planning (HELIX) managed the CEQA process and prepared a Supplemental EIR (SEIR) for this large-scale residential project in
Oak Parkway Trail Bicycle Undercrossing
The City of Folsom’s award winning, multi-use bike trail network is recognized as one of the City’s crown jewels and
Blue Mountain Minerals Expansion
HELIX Environmental Planning (HELIX) prepared an EIR for the expansion of the existing 309-acre Blue Mountain Minerals quarry site located
Nevada Irrigation District Raw Water Master Plan
HELIX Environmental Planning (HELIX) is preparing a Program Environmental Impact Report (PEIR) for the Nevada Irrigation District’s Raw Water Master
Boca Quarry Expansion
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR) for the expansion of Boca Quarry near the City of
Orchard at Penryn
HELIX Environmental Planning (HELIX) conducted a biological resource assessment, habitat mapping, and delineated waters of the United States on an
Altura Apartments
HELIX Environmental Planning (HELIX) provided air quality and greenhouse gas (GHG) analysis and regulatory permitting services for a 5.55-acre apartment
The Commons at Prairie City
HELIX Environmental Planning (HELIX) provided regulatory permitting assistance for the Commons at Prairie City project located in the City of
Meadowlands Subdivision
HELIX Environmental Planning (HELIX) is providing CEQA consultation and regulatory permitting services for the Meadowlands Subdivision project in the City
Lake Natoma Waterfront & Trail Enhancement
HELIX Environmental Planning (HELIX) provided environmental consulting services for the Lake Natoma waterfront and trail enhancement project in the City
Calaveras County On-Call Environmental Services
HELIX Environmental Planning (HELIX) was selected by the Calaveras County Public Works Department to be an on-call environmental consultant, with
Union City BART Specific Plan
HELIX Environmental Planning (HELIX) is providing technical study and CEQA consultation services for the approximately 25-acre Union City Bay Area
Colusa County Airport Vernal Pools
HELIX Environmental Planning, Inc. (HELIX) conducted a vernal pool habitat assessment for the Colusa County Airport located in Colusa County.
UC San Diego Jacobs Medical Center Bed Tower, Thornton Hospital
HELIX Environmental Planning (HELIX) prepared the Initial Study (IS), Environmental Impact Report (EIR), and technical studies for a 480,000 GSF
Rady Children’s Hospital Acute Care Pavilion Expansion
HELIX Environmental Planning (HELIX) provided environmental consulting services for several projects at the Rady Children’s Hospital and Health Center in
Pomerado Hospital Expansion
HELIX Environmental Planning (HELIX) provided environmental consulting services for the Pomerado Hospital Expansion Project in San Diego County. The project
Kaiser Facility Expansion
HELIX Environmental Planning (HELIX) conducted a due diligence biological assessment of the Kaiser Facility Expansion Project located in the City
Huntington Memorial Hospital Emergency Department Expansion
HELIX Environmental Planning (HELIX) prepared an Initial Study/Negative Declaration (IS/MND) for an expansion of the emergency department at Huntington Memorial
Salk Institute Master Plan
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR) on the expansion of the world-renowned Salk Institute for Biological
East Third Street Community Health Center
HELIX Environmental Planning (HELIX) prepared an Environmental Assessment (EA) for a community health center for QueensCare Family Clinics, a private,
Mission Cove
HELIX Environmental Planning (HELIX) completed archaeological fieldwork at Mission Cove for a data recovery program at a significant cultural resource
City of Vista On-Call Cultural Resource Services
HELIX Environmental Planning (HELIX) is providing cultural resource studies for a variety of projects and archaeological consulting services under an
Lilac Hills Ranch
HELIX Environmental Planning (HELIX) provided cultural resource management services for the proposed 608-acre Lilac Hills Ranch community located in northern
12 Oaks Winery Resort
HELIX is preparing technical studies for the 12 Oaks Winery Resort project in the Temecula Wine Country area of unincorporated
Lake Wohlford Dam Replacement
HELIX Environmental Planning (HELIX) conducted environmental consulting and cultural resource management services for the Lake Wohlford Dam expansion project for
University & Innovation District EIR
HELIX managed the preparation of various environmental technical studies and California Environmental Quality Act (CEQA) documentation, as well as provided
Carrizo Marsh Habitat Restoration
HELIX currently provides habitat restoration services for the approximately 318-acre Carrizo Marsh in Anza Borrego Desert State Park. The project
Maintenance and Operations Center Low Water Use Landscape & Irrigation Retrofit
HELIX Construction Group staff provided landscape services for the City of San Diego’s Maintenance and Operations Center. HELIX removed all
Eastlake III Wetland Restoration
HELIX Environmental Planning (HELIX) biologists and Construction Group staff prepared construction documents and specifications for the Eastlake III Woods and
Inland Feeder Utility Project Habitat Restoration
HELIX Environmental Planning (HELIX) biologists and Construction Group staff conducted upland habitat restoration and enhancement services for approximately 100 acres
UC San Diego East Campus Housing Wetland Restoration
HELIX prepared environmental- and biological resources-related documents in connection with the construction of the East Campus Graduate Student Housing project
Salk Owner’s Association Open Space Restoration & Monitoring
HELIX Environmental Planning (HELIX) biologists and Construction Group staff worked with the Salk Owner’s Association and a group of commercial
Carlsbad Raceway Habitat Restoration & Maintenance
HELIX Environmental Planning (HELIX) biologists and Construction Group staff worked with a commercial developer to design and restore approximately 20
Proctor Valley Vernal Pools & Upland Restoration
HELIX Environmental Planning biologists and habitat restoration experts conducted a vernal pool and upland restoration in San Diego County for the Chaparral
Arnie’s Point Vernal Pools
HELIX Environmental Planning (HELIX) biologists and Construction Group staff conducted vernal pool habitat restoration for the Arnie’s Point Vernal Pool/Fairy
Carlsbad Oaks North
HELIX Environmental Planning (HELIX) provided environmental compliance monitoring during construction and during the post-construction phase of the Carlsbad Oaks North
Etiwanda Pipeline North Relining
HELIX Environmental Planning (HELIX) prepared an Environmental Impact Report (EIR) and associated technical studies for The Metropolitan Water District of
Westside Infill Transit Oriented Development Project
HELIX Environmental Planning (HELIX) conducted technical analysis focused on mobile-source greenhouse gas (GHG) emissions for an infill development project proposed
San Ysidro Community Plan Update
HELIX Environmental Planning (HELIX) is preparing an Environmental Impact Report (EIR) for a planned update to the City of San
Stoyer Recycling Facility Expansion
The Padre Dam Municipal Water District’s Ray Stoyer Water Recycling Facility currently converts wastewater generated within the district’s service area
Upper San Gabriel Valley Municipal Water District Indirect Reuse Replenishment
HELIX Environmental Planning (HELIX) provided CEQA and NEPA-related environmental support services for this proposed groundwater recharge project along the San
Sweetwater Vistas
HELIX Environmental Planning (HELIX) is providing environmental consulting and biological services on a 52-acre project site in the community of
Robert T. Matsui Sacramento Courthouse
HELIX Environmental Planning (HELIX) conducted an acoustical study for the Robert T. Matsui Courthouse in the City of Sacramento to
California/Scripps Proton Treatment Center Vibration Measurement for MRI System
HELIX Environmental Planning (HELIX) provided initial building construction planning including noise control for a physician’s office from jet overpass noise
Palmdale Regional Groundwater Recharge & Recovery
HELIX Environmental Planning prepared an Environmental Impact Report (EIR) and conducted associated technical studies (including biological resources, acoustics, and air quality/greenhouse
Inyo County Renewable Energy General Plan Amendment & PEIR
HELIX Environmental Planning assisted Inyo County with the preparation of a Renewable Energy General Plan Amendment (REGPA) and Program Environmental
TERI Center for Research & Life Planning Agricultural Study
HELIX Environmental Planning (HELIX) prepared an Agricultural Resources Report under County of San Diego Guidelines to evaluate a proposed private
The Regent on Fifth Waste Management Plan
HELIX Environmental Planning (HELIX) prepared a waste management plan for a residential development project at the corner of 5th Avenue
Iowa Street Senior Housing Waste Management Plan
HELIX Environmental Planning (HELIX) prepared air quality and greenhouse gas emissions technical reports and a waste management plan for a
Tijuana River Valley Regional Park Restoration
The more than 1,800-acre Tijuana River Valley Regional Park features 22.5 miles of multi-use non-motorized trails winding through diverse habitat
Verizon and AT&T Cellular Noise Control Planning
On various Verizon and AT&T sites throughout southern California, HELIX Environmental Planning provides noise control planning and noise engineering for
Sprint, AT&T, & T-Mobile Environmental Compliance
For Sprint, AT&T Mobility, and T-Mobile West locations across California and the western U.S., HELIX provides a myriad of environmental
City of Clovis Veteran’s Affairs Environmental Compliance
HELIX provided cultural resource services for compliance with Veteran’s Affairs Section 106 of the National Historic Preservation Act (NHPA) regulations
Borrego Landfill Expansion
As a part of the planned expansion for the existing Borrego Landfill facility in the desert region of San Diego
Tecolote Canyon
HELIX prepared a Natural Resource Management Plan for the approximately 900-acre natural park in the Linda Vista and Clairemont Mesa
HP Communications Environmental Compliance
Working on U.S. Forest Service land in San Bernardino County, HELIX surveyed six failed pole locations for HP Communications to
Whiskey Slide & Schaad Road Bridges
Working with a local engineering firm, HELIX is conducting environmental compliance studies in support of CEQA/NEPA documentation for two bridge
Torrey Pines City Park General Development Plan
HELIX prepared a Biological Technical Report (BTR), Air Quality and Greenhouse Gas (GHG) Technical Report, and draft Initial Study/Mitigated Negative
City of San Diego Bicycle Master Plan Update PEIR
HELIX Environmental Planning prepared a Programmatic Environmental Impact Report (PEIR) for an update to the City of San Diego’s existing
Qualcomm Stadium Wetland Mitigation
HELIX is leading a 57-acre habitat restoration project within the San Diego River channel, between I-15 and I-805, south of
UC San Diego Center for Novel Therapeutics
HELIX prepared CEQA documentation for the proposed therapeutics research facility on the campus of the UC San Diego. Tasks include
Bayshore Bikeway
HELIX Environmental Planning has provided environmental services for five segments of the Bayshore Bikeway, a regional bicycle corridor that will
Caltrans District 11 On-Call Environmental Services
HELIX was awarded a three-year multi-disciplinary contract with Caltrans District 11 to provide environmental, biological, and cultural resources services, with
California High Speed Rail
HELIX Environmental Planning has prepared desktop environmental constraint analyses for segments of 16 potential high speed rail alignment corridors extending between
Humboldt County As-Needed Cannabis Environmental Compliance Services
In January 2016, Humboldt County was the first local government in the state to adopt a comprehensive local regulatory program
Auburn Streetscape
HELIX staff worked with the Auburn Urban Development Authority (UDA) to prepare the Auburn UDA Streetscape Master Plan. The streetscape
Arcade Creek Park Preserve
HELIX Environmental Planning (HELIX) staff prepared the master plan, provided grant support, prepared construction documents and specifications, obtained regulatory permits,
Riolo Vineyards Specific Plan Area Parks
HELIX staff are designing four parks, a promenade, streetscape planting, and multi-use trail connections within the Riolo Vineyards Specific Plan
Arden Park Retrofit
HELIX staff completed construction documents for major renovations around the community center at Arden Park. The plans included creation of
Hazel Meadow Day Use Area
HELIX staff provided restoration design services for Hazel Meadow Day Use area within the Sly Park Recreation Area in El
Loomis Town Center
HELIX staff completed the landscape architecture design for Taylor Road from Horseshoe Bar Road to Shawn Way in downtown Loomis.
Stock Ranch Nature Preserve
HELIX Environmental Planning (HELIX) staff developed a restoration, trails, and interpretive plan for the Stock Ranch Nature Preserve in the
Sunrise Boulevard Complete Streets Phase 1 and 3
HELIX staff provided landscape design and environmental review services for the City of Citrus Height’s Sunrise Boulevard Complete Streets Phase
El Dorado County Cooperative Wildland Fire Prevention Strategy
HELIX Environmental Planning (HELIX) is providing environmental services for a fuel break project in El Dorado County involving cooperative efforts
Rancho Guejito Witch Fire Biological Damage Assessment
HELIX Environmental Planning (HELIX) conducted studies to assess effects of the Witch Fire on the 21,000-acre Rancho Guejito property located
City of San Diego Brush Management Plan
The City of San Diego Open Space Division, under three awarded FEMA grants, carried out a brush management plan to
Hidden Ridge Oak Tree Mitigation
HELIX is providing oak tree mitigation services for the Watt Communities Hidden Ridge Project, located in the Fair Oaks community,
Bowman Transmission Line Vegetation Maintenance
HELIX is providing vegetation management services for the Nevada Irrigation District Bowman 60kV transmission lines located on lands owned by
Angels Camp Sewer Line Collection System
HELIX is currently preparing a CEQA Initial Study/Mitigated Negative Declaration (IS/MND) and a Mitigation Monitoring and Reporting Program (MMRP) for
Dumbarton Transit Oriented Development FMC Parcel C
HELIX prepared an IS/MND addressing construction of a mixed-use development on 17.4 acres as part of the Dumbarton Transportation Oriented
California HCD Fuel Break Expansion
HELIX is currently providing Section 106 and CEQA/NEPA services, including preparation of the appropriate environmental review documents and supporting technical
Arcade Creek Feasibility Study
HELIX Environmental Planning (HELIX) staff prepared a feasibility study on Arcade Creek in the City of Sacramento to examine the
Arcade Creek Grant Support
HELIX staff prepared the successful Proposition 50/CALFED grant proposal for $1 million for the City of Sacramento, Department of Utilities,
Longview Oaks Restoration & Enhancements
HELIX Environmental Planning (HELIX) staff developed the Longview Oaks Master Plan and construction documents, and supervised construction. The parcel of
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