Kanaka Valley Phase I Environmental Site Assessment

Kanaka Valley Phase I Environmental Site Assessment Rescue, California Lake County, California

At the request of the Bureau of Land Management (BLM), Burleson performed a Phase I Environmental Site Assessment (ESA) of the 695-acre Kanaka Valley property.

Burleson assessed the target property in general conformance with the scope and limitations of American Society for Testing and Materials (ASTM) E 1527-05 and 40 CFR Part 312 to identify any recognized environmental conditions (REC) and meet the objectives of satisfying the innocent land owner defense under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). This assessment included an evaluation to the extent practicable of the past and present land uses at the target property and on adjacent properties.

The target property comprised eight adjoining parcels of undeveloped, wooded land in the vicinity of Kanaka Valley Road and Crocker Creek about 0.8 mile north-northwest of Deer Valley Road in Rescue, El Dorado County, California.

At the time of the site reconnaissance, the target property consisted primarily of rural undeveloped vacant land. The property consisted of gently sloping valleys characterized by oak woodland and grassland and surrounding steep slopes covered with thick chaparral. Burleson observed unpaved roads in Kanaka Valley and adjoining small valleys within the target property.

Historical Review

Burleson’s review of historic aerial photographs and topographic maps indicated that the target property has been undeveloped land since 1893. The surrounding area was a mixture of undeveloped and rural residential land since 1949. Burleson’s review of historical information did not indicate RECs to the target property.

Burleson’s review of available regulatory information did not indicate RECs to the target property. One report of offsite disposal about 1 mile southeast of the target property and three historical USTs were identified about 1.4 miles to the southeast of the target property. These three USTs were outside of the Crocker Creek and Kanaka Valley watersheds and are not expected to impact the target property.

Findings

Based on records search, interview, site reconnaissance, and other efforts related to the subject property, findings are as follows:

No RECs were identified.

A potential REC is associated with the placer mining that occurred along Crocker Creek and its tributaries within the target property. This potential REC is associated with the potential use of mercury by placer miners to recover fine gold. While not used in the same quantities as associated with large scale hydraulic mining, mercury was used by some placer miners, and may have been released in Crocker Creek incidental to the placer mining activities.

No historical RECs were identified.

Six groundwater wells associated with a former development plan for the target property are located at the target property.

Due the age of the onsite structures and placer mine workings, they are of potential historic significance.

The ultramafic and mafic rocks present at the site may contain naturally occurring asbestos.

Client Satisfaction

"Burleson Consulting was excellent to work with and very professional. They assembled a top-notch team of experts to study and propose solutions to the water supply challenges at Sutter National Wildlife Refuge. The communication was excellent throughout the project. This included project staff, contracting personnel, and interested stakeholders. As a result, the project was completed on time and on budget. I would not hesitate to use or recommend Burleson Consulting in the future."Kevin Clancy, Project Manager – United States Bureau of Reclamation

"Burleson provided exceptional services under this contract. Because of their successful work, they were awarded a $7M follow-on IDIQ contract in 2014, that also encompasses biological monitoring at former Fort Ord. They have consistently improved their plant material collection and propagation techniques and pass the savings onto the federal government. Burleson is a valuable team member on Fort Ord and I feel that they are true stewards of the environment." William K. Collins, BRAC Environmental Coordinator, US Army Corps of Engineers

"Burleson has been able to work with several government agencies (to include tribal groups and natural resource trustees) and several responsible parties to assist in progressing this site to a stage where technical and agency concerns can be identified and resolved. Strengths – overall and in depth understanding of mine site and CERCLA dynamics. Deficiencies – none. I would not hesitate to use Burleson." Daniel McMindes, USACE Liaison to EPA, US Army Corps of Engineers

"Burleson helped to manage the Sacramento Area Voltage Support Environmental Impact Statement. They came through and were always available during an ‘energy crisis’ in California. I will continue to work with them."Loreen McMahon, Project Manager - California Public Utilities Commission

"We appreciated Burleson’s great work, re: completing the draft EIR on the scheduled date (it was a tremendous task, but they completed it). All of them put a lot of work into it (it was a true team effort). They should all be proud of this accomplishment given the changes and obstacles encountered along the way, and I cannot thank them enough."Glenn M. Shuder, AIA, CFM, Chief Architect - Project Director, SMUD

"We chose Burleson Consulting because of their experience with the specific project matter in technical and regulatory issues and for their record of excellent communication skills in complex, multiparty projects. They were responsive to the matter and were sensitive to all relationships between the parties involved."Kevin Mayer, PE, Project Manager - USEPA