Comments (1) Practical technique for mapping surface fractures at regional scales is shown. On ArcView, modified Digital Elevation Model (DEM) dataset generate fascinating images that reveals structural features in western side of the Sierra Nevada. Nine wells, drilled on the inferred fractures, produced a satisfactory water discharge. Continue reading ''»
In Fresno-Clovis area, wells that tap water on relatively similar depth varies greatly in their yield; from about 500 gpm to 2,000 gpm. This article shows a practical method to locate an area, where high yield water well can be expected. Continue reading ''»
These are websites that I use at work to get information related to groundwater in California. It’s pretty impressive in terms of the amount and types of data available online. Continue reading ''»
Simple solutions for the constant-head pumping test result are discussed, based on the Birsoy-Summer’s and the Jacob-Lohman’s equations. Transmissivity from pumping data is compared to recovery’s for validation purpose. Continue reading ''»
Three pumping test methods (step-drawdown, constant-discharge, and constant-head/ constant-drawdown) are compared for their suitability for aquifer test at a hardrock aquifer. Continue reading ''»
Some groundwater models for Central Valley and their cities in California use deep percolation of precipitation on the valley floor as a significant source of recharge. One important aspect that these models somehow neglect is the present of hardpan soil layer. Continue reading ''»
Professional Geologist Examination is something every geologist should take before they can put a title as a Geologist on their business card. Surprisingly, there is almost no information on the internet about what people should do to prepare for the exam. Here are some tips to get you through the ASBOG (National Association of State Boards of Geology) exam.
The Thirst for Online Database
Imagine this: Your office is proposing a groundwater study at Panoche Valley, Fresno County, CA area. Before taking off to a meeting, the boss asks if you can get any related information from the internet. He, as others in his standing, likes the Can Do employee. So, you say, “Yes, I can.” Then, you are off to your computer.
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