Clarence Jensen

Ah, the technician at work. After shipping off the soil samples to the Environmental Laboratory, the next step is the water samples. I like this modern phenomenon because today’s technology uncovers all the sins of previous owners and businesses. It is sort of a look into the earth! On our development site, water is tested at two levels. The first piezometer is at 10 feet, which is in a seam of sand above a large clay seam. Water is abundant and is very clear from any discoloring contaminants. The second piezometer is placed to a depth of 35 feet. It is placed above what appears to be water carrying clay. The first water pumped to the surface is slightly off color from sitting there for a week, but clears up when more water is pumped.  Samples are taken from all 6 sites and then taken to the lab.

What are the expectations from the tests and what are they looking for?  The primary test is the pH test which determines the measure of acidity or basicity in both water and soil. Most of us think it is a soil test for growing plants where it is important to be close to the 7 or in equal balance. Any great deviance from this would lead to further testing. However, the real reason for these water tests is to determine whether or not there are any contaminants present.  The test will show any level of hydrocarbons, which can be detrimental to human health. For example, benzene, an oil derivative is a carcinogen. It is important to know that all the tests will be done on all water samples. It is very important that all development sites be free from these contaminants.

Do you think it is important to do all these tests? I do. The cost of doing these tests is expensive, but it is a lot cheaper than paying later. Your thoughts are important, so feel free to comment.