Environmental Enlightenment #73

By Ami Adini - Reissued March 22, 2017

This is a SHORT, LIGHT and SIMPLE newsletter. Its purpose is to rekindle in the initiated concepts they have once learned, and enlighten the uninitiated on concepts they may have never heard of, but will understand once they are introduced to them.

How to Find Buried Objects
Magnetic Methods

[The text in this article has been extracted from a publication by the United States Environmental Protection Agency.]

Magnetometers are useful for locating buried objects made of ferrous materials. Although highly sensitive magnetometers have been developed that can detect the void space within large buried objects of any material (e.g., fiberglass tanks), this technology is not often used because many cultural interferences will mask the effect.

Magnetometers measure the earth's total magnetic field at a particular location. Buried ferrous materials distort the magnetic field, creating a magnetic anomaly.

Magnetometers are very fast and relatively inexpensive.

Potential cultural interferences include steel fences, vehicles, buildings, iron debris, natural soil minerals, and underground utilities.

Power lines are an additional source of interference that can be neutralized with the use of very sophisticated equipment that synchronizes readings with the oscillating electrical current.

Some magnetometers are very simple and do not have a data recording or processing ability. They indicate the presence of iron with a sound or meter and can be used as a rapid screening tool.

Magnetometers that record data can, with the aid of data processing software, be used to estimate the size and depth of ferrous targets.

You can find past issues of "Environmental Enlightenment" at www.amiadini.com Wealth of information about environmental site assessments in the real estate transactions and issues concerning assessment and cleanup of contamination in the subsurface soil and groundwater.

Call me if you have any questions. There are no obligations.

Ami Adini Environmental Services, Inc.
Environmental Engineering Consultants & Contractors
Underground Storage Tank Experts
California Lic. #1009513 A B HAZ ASB
818-824-8102; mail@amiadini.com

Ami Adini is a mechanical engineer, California Registered Environmental Assessor, Level II (Exp.), and president of AMI ADINI ENVIRONMENTAL SERVICES, INC. (AAES), an environmental engineering consulting firm and general contractors specializing in all phases of environmental site assessments, rehabilitation of contaminated sites and upgrading of underground storage tank facilities. AAES provides practical solutions to environmental concerns using the highest standards of ethics and integrity while providing its clients with maximum return on their investments.