Site Assessment and Investigations

We have an outstanding team of environmental scientists and investigators that assesses industrial, residential, commercial, and open space properties to evaluate environmental status and health.   We benefit from an intimate knowledge of the federal, state, and local regulations, and employ up-to-date technologies (including satellite imagery and GIS). We have conducted over 2000 Phase I Environmental Site Assessments and Phase II Detailed Site Investigations to ASTM standards at sites in the U.S. and overseas. We have assessed a wide range of properties, including:

• Transportation corridors
• Manufacturing facilities
• Power plants and substations
• Vehicle maintenance facilities
• Oil and gas fields
• Pipelines and Refineries
• Mines
• Airports
• Commercial properties
• Residential properties

Our site assessments include such procedures as baseline data inventories, asbestos and lead surveys, indoor air quality evaluations, ground water monitoring, contaminant characterization, and soil gas surveys.

Domestic Project Examples

Environmental Due Diligence Audit, Utah and Maryland.  To assist in the evaluation of the prospective $700 million purchase of Thiokol Propulsion, Alliant Techsystems retained Walsh to conduct an environmental liability evaluation for Thiokol operations in Northern Utah and Elkton, Maryland.

EHS Audit for Ball Aerospace.   Walsh conducted a comprehensive Environmental Health and Safety audit for three facilities operated by Ball Aerospace.

Environmental Audit of Potash Mine.  Walsh conducted an environmental audit of an operating Potash mine near Moab, Utah, during sale of the property.

Phase II Site Assessment for Rail Corridor.  Walsh has begun a Phase II site assessment on the US 36 (Colorado) heavy rail corridor as part of the Regional Transportation District's FasTrack's Project.

Environmental Consulting for Demolition of 14 Buildings, Aspen. Colorado.  Walsh provided Phase I and II ESAs, asbestos inspections, and soil contamination remediation for the redevelopment of a city block in Aspen, Colorado containing 14 commercial and residential structures.

State of Colorado's Consultant for Leaking Underground Storage Tank Site Assessments and Remediation.  Since 1988, Walsh has been a prime contractor to the State of Colorado for implementation of the federal Leaking UST Trust Site Evaluation Program.

International Project Examples

Wind Park ESIAs - Walsh-Ecuador is conducting two ESIAs for the UNDP: a wind park on the island of Baltra and a transmission line that connects the wind park with the urban center of Puerto Ayora on Santa Cruz.  The wind park and transmission lines are located within the Galapagos National Park. The ESIA process includes careful consideration of sensitive species such as the land iguana, various sea birds and esthetic impacts.  This wind project is part of larger effort by the UNDP and the Ecuadorian government to convert the archipelago to 100% sustainable energy.

Environmental and Social Impact Assessment for Exploration and Production, Yemen.  Walsh conducted an environmental and social impact assessment project for seismic exploration, exploration drilling, and field development in Block S-1 in Yemen, for Occidental Petroleum.  The ESIA evaluated the existing environmental and social conditions in the block, which is principally a large sand sea that does include previously existing oilfields. 

Equator Principles Audit, Mexico and South Korea.  For a large foreign bank, Walsh conducted an Equator Principles audit to ensure companies involved in a major international project complied with the International Finance Corporation’s eight Performance Standards.  The Performance Standards ensure corporate social responsibility and best-practices are upheld for financed projects around the world. 

Facilities Audit for Coca-Payamino, Orellana Province, Ecuador.
Walsh conducted a comprehensive environmental and health and safety audit for Kerr-McGee at the Coca-Payamino Oil Field. 

Baseline Environmental Assessment, Offshore Togo.  Walsh conducted an assessment of baseline environmental conditions for an offshore exploratory well off the coast of the Republic of Togo, West Africa.

Environmental Audit of Producing Field, Kazakhstan.  For an oil company selling an oilfield in Kazakhstan, Walsh conducted an environmental audit detailing the baseline conditions at the time of the property transfer.

Environmental Baseline Studies, Yemen.  Walsh performed environmental baseline studies to identify potential environmental liabilities for an oil company's acquisition of two lease blocks in Yemen.

Phase I Environmental Investigation, Elektro Utility System, Sao Paulo, Brazil.  For an international energy company, WALSH performed an environmental assessment of a Brazilian electric utility.  Facilities investigated included power plants, maintenance yards, substations, and transmission facilities.