When is Phase 2 Environmental Site Assessment needed? When a Recognized Environmental Condition is discovered during the Phase 1 Environmental Assessment, additional testing can be recommended in cases where it seems likely that there is an environmental liability that will substantially reduce the value of the property in question. This is typical in cases where…
DetailsOlivine is an abundant silicate found in Earth’s mantle, and many meteorites contain this mineral. Olivine is typically olive green in color, but can also be yellow-green to bright green and brownish-green to brown. The opacity of olivine ranges from transparent to translucent, and its texture is brittle with many fractures. Olivine is commonly associated…
DetailsNo discussion of the impacts of a drought can be complete without a consideration of the long-term impact. Most people are familiar with the short-term effects of a drought: the loss of surface and groundwater. Long-Term Impacts Some of the long-term impacts are also well-known. As an area becomes increasingly dry, it also becomes more…
DetailsThe Earth is composed of four main parts. These parts are evident in the geology of the Earth and natural disasters that we observe every day. #1: The Core The composition of the Earth begins with the inner parts of the planet. The Earth’s core is the densest part of the planet. It is made…
DetailsDiamonds are much more than just a girl’s best friend. They are actually very useful in many respects beyond being admired for their beauty. While they are easily the most popular gemstone purchased in the United States, possibly because of their common use in wedding ceremonies, they also have many industrial uses because of their…
DetailsThis article I wrote was published recently in LA Times local papers. it doesn’t pertain to geology directly, but certainly worth a look: Population densities in the Southland have increased dramatically over the last generation, and are slated to multiply further as large apartment structures go up across the city to meet the renewed demand…
DetailsAnyone who has lived in southern California long enough knows that this is fault country, and if you are a property owner you have an obligation to yourself to safeguard your property against damage from earthquakes. Earthquake prediction science is as yet not developed enough to know when one will strike. But no one has…
DetailsI recently have been involved in some projects in which the homeowner wants to make some additions to his residence in the city of La Canada Flintridge. Many of the estate residences south of Foothill on LCF are serviced by septic tanks and cesspools, and public sewer connection is not available for these areas. Often the unavailability…
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