Category Archives: Featured Projects


New School Site Preliminary Environmental Assessment

By aaa aaa,

Padre prepared a Preliminary Environmental Assessment (PEA) for a proposed new 30-classroom elementary school proposed to be located in Gilroy, California (Project Site). The PEA was conducted in accordance with a Preliminary Environmental Assessment Work Plan, also prepared by Padre and approved by the California Environmental Protection Agency Department of Toxic Substances Control (CalEPA/DTSC). The activities performed were to fulfill the requirements of an Environmental Oversight Agreement issued to the school district by CalEPA/DTSC. Pursuant to Option A of the California Education Code Section 17213.1.a (6) (A), the PEA was made available to the public for review and comment.

The purpose of the PEA was to establish whether a release or potential release of hazardous substances or naturally occurring material, which would pose a threat to human health via ingestion, dermal contact, and inhalation exposure pathways, exists at the Project Site. Chemicals of potential concern (COPCs) identified at the Project Site included:

• Organochlorine pesticides (OCPs) in soil from historic agricultural use;
• Arsenic and copper in soil from historic agricultural use;
• Cobalt in soil related to concentrations identified in a soil stockpile located on the Project Site; and
• Naturally occurring asbestos (NOA) from weathering of ultramafic rock outcrops located in outlying areas.

Analytical results from soil sampling indicate that the amounts of the COPCs identified above are not present in on-site soils at levels that require further assessment or remediation, based upon State of California health risk thresholds with the exception of NOA.

Padre prepared a Removal Action Work Plan (RAW) and Operations and Maintenance (O&M) Plan for the Project Site. The recommended response action to eliminate, reduce, and/or mitigate the identified chemicals of concern is the implementation of engineering controls in the form of a “cap” placed over the NOA-containing soil, creating a barrier to prevent or greatly reduce human exposure and health impacts. After school construction is completed, the O&M Plan will address long-term monitoring and maintenance of engineering controls, and management of soils containing elevated concentrations of NOA at the Project Site.


Remediation Services For Former Service Station, Ventura, California

By aaa aaa,

Padre provided environmental and demolition support for the removal of the remaining fuel piping associated with the former fuel underground storage tanks (USTs), dispenser islands, underground hoists, waste clarifier, and waste oil UST for a former service station property (Project) located on Main Street in Ventura, California (Project Site).  As part of the scope of work, Padre: 

  • Procured necessary permits from various agencies including the City of Ventura Fire Department (tank removal permit), City of Ventura (grading permit), and Ventura County Air Pollution Control District (exemption from permit);
  • Prepared a Site Restoration Plan for the Project Site;
  • Conducted a geophysical survey of the Project Site to identify underground utilities and hazards;
    Was responsible for removal, recycling/disposal of Project components; Prepared a Technical Work Plan for Preliminary Soil and Groundwater Assessment Activities for the Project;
  • Prepared a Health and Safety Plan for the Project;
  • Conducted preliminary site assessment activities including sampling and analysis of soil and groundwater for assistance with waste characterization and classification for disposal;
  • Provided field oversight, monitoring and documentation of activities associated with the Project;
    Prepared a report summarizing and documenting the demolition and soil sampling activities conducted at the Project Site; and
  • Prepared a Summary Report and Request for Site Closure for the excavation and removal of TPH-containing soil and confirmation sampling/chemical analyses.

The Project Site is planned for future development of mixed uses (residential and commercial) and was part of the Ventura County Cleanup Program with local oversight provided by the Ventura County Environmental Health Division. With Padre’s assistance, the Project Site successfully received site closure status, from Ventura County Environmental Health Division


Oso Flaco Lake Planning and Assessment Project

By aaa aaa,

Padre assisted the Coastal San Luis Resource Conservation District, working in partnership with the California Regional Water Quality Control Board – Central Coast Region and California State Parks, in completion of sediment assessment activities at Oso Flaco and Little Oso Flaco lakes in southwestern San Luis Obispo County. The two coastal lakes are located at the outlet of a watershed where the predominant land use is irrigated agriculture.  The two lakes have been identified as Section 303d impaired water bodies due to elevated concentrations of organochlorine pesticides, primarily DDT and dieldrin.  Padre subcontracted with TEG Oceanographic Services to complete 17 sediment sample collection locations using a barge mounted vibracore sampling system.  Sediments were collected in continuous cores ranging in depth from 3 to 6 feet at pre-determined locations within both lakes.  Padre geologists logged the sediments, identifying changes in soil type, macroinvertebrates, and layers of organic debris.  Stratigraphic core samples were chemically analyzed for the presence of potential chemicals of concern.  The information gained from the sediment assessment activities will be used by the interested agencies to determine potential remedial options, including dredging, that could be implemented to improve the ecological health of the two lakes.

The photo shows a vibracore sample location near the boardwalk at Oso Flaco Lake.


San Luis Obispo Tank Farm Remediation and Restoration Project

By aaa aaa,

Since 2007, Padre has been providing permitting, environmental, and remediation services to Chevron Environmental Management Company for the remediation, restoration, and re-development of the former San Luis Obispo Tank Farm Property in San Luis Obispo.  This 332-acre property was historically used for the storage of crude oil as part of the former oil storage and transport system on the Central Coast.  The property was impacted by the release of petroleum hydrocarbons during a 1926 lightning strike and resulting fire that released over a million barrels of oil to the surrounding area. 

Padre has assisted Chevron with the preparation and submittal of permit applications, and consulted on the content and review of the environmental impact report resulting in the certification of the EIR by the City of San Luis Obispo.  Permits have been obtained from the U.S. Army Corps of Engineers, the California Department of Fish and Wildlife, the Central Coast Regional Water Quality Control Board, the County of San Luis Obispo Department of Planning and Building, and the San Luis Obispo County Air Pollution Control District.  Additional reviewing agencies included the City of San Luis Obispo, Caltrans, San Luis Obispo County Regional Airport, the California State Historic Preservation Office, Federal Emergency Management Agency, and the Federal Aviation Administration. 

Padre completed site wide wetland surveys, rare plant surveys, vernal pool fairy shrimp surveys, and cultural resource surveys.  Padre prepared a landscape restoration plan, containing a mitigation plan for fairy shrimp impacts, which will be implemented following site remediation activities at each remediation area.  Padre has conducted cultural resource surveys and testing at several historic features located within the site.  Padre works closely with the remedial construction company to plan and execution remediation in each of the remediation areas of the site.  Padre has conducted various assessment activities to characterize the site prior to remediation and obtain regulatory approvals.  Remedial construction activities began at the site in 2016 for what is anticipated to be an eight-year long remediation and restoration project.

The photos show the ruins of a former oil reservoir at the site destroyed by the 1926 fire, and recent remedial excavations, which are currently in progress.



San Joaquin River Pipeline Crossing Decommissioning Project

By aaa aaa,

Under contract to Pacific Gas and Electric Company (PG&E) and Longitude 123, Padre provided regulatory permitting and environmental oversight for the PG&E Line 114, Line 114-1, and Line SP4Z San Joaquin River Pipeline Crossing Decommissioning Project (Project).  This included the preparation of an environmental assessment and regulatory permit applications for the Project.  The California State Lands Commission (CSLC) was the lead agency under the California Environmental Quality Act and with the support of Padre, prepared a Mitigated Negative Declaration (MND) for the Project. The final MND was adopted by the CSLC in October 2015.

Padre prepared permit applications for the Project including an application for a CSCL Lease Amendment; United States Army Corps of Engineers pre-construction notification for approval under nationwide permit 12; California Department of Fish and Wildlife Streambed Alteration Agreement notification; and an application for Regional Water Quality Control Board Water Quality Certification.  Padre also prepared a Biological Assessment for Section 7 Consultation with the United States Fish and Wildlife Service and National Marine Fisheries Service and facilitated informal consultation with the federal agencies.  Regulatory permits were issued in early 2016 and removal of approximately 3,600 linear feet of pipeline from the San Joaquin River was completed between August and October of 2016, during the aquatic work window for protection of sensitive fish species occurring in the Bay-Delta.  Padre provided pre-construction surveys and permit compliance monitoring, including water quality monitoring, for the construction phase of the Project.  Removal of the pipeline from the levee on Sherman Island is expected to occur during the 2017 construction season and Padre will provide permit support and construction monitoring services for that portion of the project as well.

The photo shows the derrick barge with a suspended segment of cut pipeline after removal from the San Joaquin River.


Bay Area School Site Remediation

By aaa aaa,

Padre is currently assisting a San Francisco Bay Area school district with the bioremediation using land-farming techniques of approximately 4-acres of PCBs-containing soil as part of the development of a new elementary school.  Padre’s Sacramento school site consulting / development team led by Alan Klein, C.E.M. and Alan Churchill, P.G. is managing the project.  The photo below shows the mechanical tilling of the PCBs-containing soil following the application of the bioremediation active agent and moisture conditioning.  The bioremediation process is estimated to require approximately 90 days to complete.


Draft EIR Released

By aaa aaa,

Project Name: Carpinteria Avenue Bridge Replacement Project, Carpinteria, California
Services: CEQA, NEPA and Permitting Assistance
Client: City of Carpinteria Public Works Department

The Carpinteria Avenue Bridge over Carpinteria Creek was originally constructed in 1937 and needs to be upgraded to meet current earthquake and vehicular safety standards. The project is also designed to include wider sidewalks, improved water flow under the bridge, improved bike access, and creek bed and bank enhancements. Padre is working with the City of Carpinteria to prepare environmental documentation in compliance with CEQA. Padre prepared an environmental scoping document to identify the appropriate CEQA document, and the City determined that an Environmental Impact Report (EIR) is required due to potential aesthetics, biological, noise and water quality impacts. A Draft EIR has been completed and has been distributed for public review. Padre has also completed technical studies for submittal to Caltrans to address National Environmental Policy Act compliance, including a natural environment study, biological assessment, visual impact assessment, noise technical memorandum, and water quality technical memorandum. Padre will also assist the City in obtaining a coastal development permit and regulatory permits for work within Carpinteria Creek.

To follow the project and review project documentation visit the City’s web site.


Energy Project Monitoring

By aaa aaa,

Padre has been providing permitting and environmental monitoring support to Southern California Gas Company for their La Goleta Storage Field Enhancement Project. The Project involves the drilling and withdrawal of native gas from the on-shore Eocene-age formation located in the unincorporated Santa Barbara County at 1171 More Ranch Road located near Goleta, California. Following the initial withdrawal of native gas, the formation will be used to enhance the existing storage field by expanding the total storage capacity at the facility. The project includes two initial development/exploratory wells, two exploratory wells (to be drilled at a later time), approximately 2,800 linear feet of underground piping and an additional dehydration system, as well as other appurtenant facilities and equipment.

Permitting of the La Goleta Storage Field Facility required a Coastal Zoning Ordinance / Local Coastal Plan Amendment and associated approvals (e.g., Revised Development Plan, Coastal Development Permit, and Land Use Permit) from the County of Santa Barbara.  Additional permits and approvals were required from the California Department of Conservation – Division of Oil, Gas and Geothermal Resources; California Public Utilities Commission; Santa Barbara County Air Pollution Control District; California Department of Fish and Wildlife, United States Army Corps of Engineers; and Regional Water Quality Control Board. Environmental analysis of key issue areas including noise, biological resources, aesthetics, cultural resources, geology, water resources, transportation, and hazardous materials was provided to the County of Santa Barbara to support their preparation of the Project Environmental Impact Report (EIR). The EIR was finalized in May 2013.

Padre is currently providing environmental monitoring and compliance services in accordance with the Project’s approved Environmental Quality Assurance Plan as authorized by the County of Santa Barbara.



Draft EIR Released

By aaa aaa,

The Santa Barbara County Public Works Department, Resource Recovery & Waste Management (RRWM) Division proposes to modify the operation of the Tajiguas Landfill to add a Resource Recovery Project (Project) that would process recyclables and organic material from municipal solid waste. The Project includes the addition of a Materials Recovery Facility (MRF) and Dry Fermentation Anaerobic Digestion (AD) Facility to the Tajiguas Landfill. Recyclables would be recovered at the MRF and processed for sale. Recovered organic material would be processed in the AD Facility and residue would be disposed at the landfill. The AD facility would produce biogas which would be used as a source of energy at the facility and digestate which would be cured into soil amendments.

Padre assisted the RRWM with the preparation of a Subsequent Environmental Impact Report (SEIR) for the Project. The SEIR evaluated eight alternatives in detail including the proposed Project. No significant and unavoidable impacts were determined to result from implementation of the Project, excluding those associated with extending the life of the landfill (which is an objective of the Project). Significant but mitigable impacts were identified in the areas of scenic resources, biological resources, hazardous materials, geological hazards, land use, water resources. The Project is also generally sensitive to the public due to the location of the Tajiguas Landfill in the Gaviota coast rural region.

The SEIR was subject to extensive internal review by the “Public Participants” for the project which include the jurisdictional areas served by the Tajiguas Landfill. Specifically, the Public Participants include the County of Santa Barbara, and cities of Santa Barbara, Goleta, Buellton and Solvang.

The RRWM web site can be accessed at

The Santa Barbara Independent discusses the project at


Padre Project in the News

By NDIC Support,

Padre Project in the News – Recent storms have resulted in the exposure of beach hazards (remnants of wooden posts and steel beams that were left behind from oil production decades ago) along the Goleta coastline and removal is underway.  Padre provided CEQA, permitting and monitoring services for this ongoing project.  See news coverage at KEYT.  Thanks to Jenn Leighton, Sierra Kelso,  Patrick Crooks and Kenny Gilliland for their efforts in supporting this emergency project.

Please note Mr. Patrick Crooks in the video clip (providing compliance monitoring for the State Lands Commission).