Mining & Reclamation Projects
Services Provided: Biological/Botanical Surveys, Section 404 Clean Water Act Jurisdictional Delineation, GIS Support, Environmental Permitting, Endangered Species Act Consultation, Alternatives Analysis, Habitat Restoration Design, Mitigation Construction Oversight, Annual Mitigation Monitoring and Reporting, Regulatory Compliance Coordination, Conservation Easement Coordination, and Long-term Conservation Land Management.
Leona Height Mine Reclamation Project
Ocean Industries
Location: Oakland, California
Summary: The Leona Heights Mine Reclamation Project was associated with a Regional Water Quality Control Board Cleanup and Abatement Order. The project included the restoration of the Leona Creek stream channel which has been degraded by former sulfur mining activities. The project consisted of site remediation and creek restoration as mandated by the San Francisco Bay Regional Water Quality Control Board. The primary goal of the Project was to improve water quality by minimizing the infiltration of rainwater into the waste rock and reducing the amount of contact between water and sulfur in the waste piles, thereby reducing the formation of acid and the potential for discharge into the Leona Creek and San Francisco Bay. Channel stabilization was provided through the construction of step pools along the entire length of the restored channel. The riparian restoration was also implemented to provide vegetation coverage over those areas disturbed by mining located adjacent to the channel.
Dumbarton Quarry Reclamation Project
City of Fremont
Location: Fremont, California
Summary: : DeSilva Gates Construction, on behalf of East Bay Regional Park District (EBRPD), submitted an application for a 91-acre regional park facility at the former Dumbarton Quarry site adjacent to the San Francisco Bay. This facility will become the camping and recreation area for the existing Coyote Hills Regional Park, which is adjacent to the site along the northern boundary. The project proposes picnic areas, children’s playground and play areas, trails/paths, restroom facilities, and irrigated and non-irrigated turf meadows. The project also includes overnight camping facilities with 63 recreational vehicle (RV) sites, 17 walk-in campsites, and 20 car campsites. In addition, a small store, laundry, and shower facilities are proposed to serve the campsites. Construction of a 13,000-square foot event center, a 150-person outdoor amphitheater with outdoor campfire pit, and a one-half acre corporation yard and maintenance facility are also proposed.
Services Provided: Biological Surveys and Environmental Assessment.
Services Provided: Biological/Botanical Surveys, Section 404 Clean Water Act Jurisdictional Delineation, GIS Support, Environmental Permitting, Endangered Species Act Consultation, Habitat Restoration Design, Mitigation Construction Oversight, Annual Mitigation Monitoring and Reporting, and Regulatory Compliance Coordination.
Soda Lake Mine Tailings Expansion
Graniterock
Location: Santa Cruz County, California
Summary: The Soda Lake Mine Tailings Expansion project involved major modifications to an existing mine tailing reservoir created and maintained by Graniterock. Soda Lake was developed in the 1960s as a settling pond for washwater from Graniterock’s quarry that is just across the road. The washwater contains fine mineral particles that are the byproduct of crushing rock at the quarry to make aggregate for construction applications. Since the 1960’s the lakebed has risen due to the depositions of a slurry water/sediment mix, requiring the construction of earthen berms surrounding the lake to contain sediment and runoff water. Surrounding Soda Lake is an assortment of open space containing grasslands, riparian habitat, and wetlands. This habitat also contains several federally and state listed plant and animals.
Olberding Environmental, Inc.
"Providing professional consulting services since 1997"