Environmental compliance and natural resource management

Mining, Energy and Utilities Projects

HELIX Environmental Mining, Energy and utilities Projects
Mining Projects
South Coast Quarry Project
  • South Coast Quarry Project Subsequent EIR for Amended Reclamation Plan Phases 2B, 3 and 4, including restoration of Buena Vista Creek and El Salto Falls (Carlsbad and Oceanside, CA)
  • Otay Hills Mineral Extraction Project EIR, BTRs and NTR for mineral resources recovery project on 210-acre quarry site in East Otay Mesa (San Diego County, CA)
  • Whitewater Mine Pit and Colorado River Aqueduct Project EIR and HRP reclamation of a former mine site and installation of scour protection devices over the Colorado River Aqueduct (Riverside County, CA)
  • Daley Rock Quarry Project EIR for expansion of an existing rock quarry (including rock processing, concrete batch plant and asphalt production) near Jamul (San Diego County, CA)
  • Pala Sand Extraction and Processing Facility Project EIR for sand mining operation over 112 acres of the San Luis Rey River (San Diego County, CA)
Energy and Utilities Projects
Vegetation Mapping for Sunrise Powerlink Project
  • Sunrise Powerlink Project Contributions to EIR/EIS Land Use, Biology, and Agriculture Sections, Baseline biological studies, and agency coordination for 150 miles of new transmission lines traversing public and private lands between SDG&E’s Imperial Valley Substation and the Peñasquitos Substation, and a new substation in central San Diego County (San Diego, Imperial and Riverside Counties)
  • CalPeak Power Natural Gas Facilities Project Fast-track IS/MNDs and contribution to CEC Applications for Certification for four 49.5 megawatt natural gas generating facility locations (El Cajon, Escondido and San Diego, CA)
  • Silver Strand Utility Line Undergrounding Project CatEx, Permitting, Approvals from the USFWS and CDFG, and native seed collection for 1.4 acres of coastal sage scrub restoration and undergrounding of utility line (Coronado, CA)
  • Confidential Linear Infrastructure Project Environmental Constraint Studies for corridor extending 125 miles (San Diego and Riverside Counties)
  • Miguel-Mission Transmission Line Project EIR biology section and agency coordination for this transmission line project (San Diego County, CA)
  • AT&T, Cingular, Cricket, T-Mobile, Verizon, and Sprint Cellular Site Installation and Generator Upgrade Noise Studies (San Diego County, CA)

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