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Hydrogeology

Naturally-Occurring Radioactive Materials (NORM) in Groundwater

This step by step guide explains what naturally occurring radioactive materials in groundwater are, where they come from, how they move, how they are regulated, and practical steps small water…

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Naturally Occurring Arsenic in Groundwater: A Guide For Small Water Systems

Arsenic in groundwater is one of those problems that quietly affects communities around the world. It is common, often naturally occurring, and it can be hard to predict without the…

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Naturally-Occurring Fluoride in Groundwater: Understanding, Managing, and Treating Geogenic Fluoride

  I routinely get asked about Naturally-Occurring Fluoride and how it ends up in drinking water. In this article I outline what causes high Naturally-Occurring Fluoride in groundwater, how to…

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Read more about the article Locating Water Wells in Virginia’s Blue Ridge: Fracture Trace and Hydrostratigraphic Analysis

Locating Water Wells in Virginia’s Blue Ridge: Fracture Trace and Hydrostratigraphic Analysis

  This practical guide is based on a field study presented by The Groundwater Guy and shows you how to locate prospect water supply wells in Virginia's Blue Ridge using…

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Sometimes, There Is Just Not Enough Water

I recently got a phone call from a colleague of mine whom I team up with on well projects from time to time.  He had an interesting dilemma that he…

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Where Is That Contaminant Coming From In My Well?

I talked to the operator of a small water district in California several years ago about an issue they were having with arsenic in their main supply well.  Water samples…

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Surface Water Intrusion in Water Supply Wells

We see many cases of well problems that are directly attributable to surface water intrusion in the wells.  These problems can range from coliform bacteria (including E. coli) to nitrates…

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Where Does The Sulfur Come From in Tennessee Groundwater?

The Tennessee Department of Environment and Conservation estimates that 20% of all wells in the Central Basin area of Middle Tennessee contain varying levels of sulfur, readily recognizable to the…

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Tools of the Trade: Historical Topographic Maps

Why historical topo maps?  The U.S. Geological Survey started their topographic map program in 1879 with the first maps produced in 1884.  Over the years, the USGS has produced topographic…

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Tools of the Trade: Online Geologic Maps

Geology is vitally important in selecting a location for a new well, determining how deep the well needs to be, estimating potential yields and identifying potential water quality problems.  While…

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Recent Posts

  • Interview with Michael Grabow, Master Business Trainer and Systems Coach
  • Managing Nitrates in Drinking Water: A Practical, Step-by-Step Guide
  • The Clock is Ticking! LCRI Update for Small Systems
  • Creating and Maintaining Digital SOP Libraries for Small Water Systems
  • Naturally-Occurring Radioactive Materials (NORM) in Groundwater

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