EN Rx, Inc. articles

Abstract

Remediation technologies can sometimes be established, but are not prevalent, for a variety of reasons; however, they can be subject to the forces of change. In some cases, creative economics promotes newuses, but also process improvements can drive newapplications and levels of acceptance. This is what is happening with the deployment of horizontal wells for site assessment and remediation. In essence, decreasing costs and a strategic shift, which can be

1 | INTRODUCTION

This report summarizes the process and results obtained from an economic analysis comparing the installation cost of the VertebraeTM horizontal nested well system to a vertical well groundwater pump and treat system such as might be installed at a gas station, terminal, or small manufacturing plant. The purpose of the analysis is to help decision makers gain an understanding of the potential value that could be realized from the installation of the

Directional drilling has been used for a variety of purposes; utilities, dewatering, and remedial activities. Cutting costs for remedial activities it is always of consideration. What the costs are to clean-up a site via traditional vertical extraction wells versus using a horizontal well system needs to be reconsidered based upon todays remedial challenges. Traditionally, it has been stated that a single horizontal well is worth 4-11 vertical wells. This seems arbitrary in that both depth of

SITE

Convenience Store Facility, Jacksonville, FL

CONTAMINATION

Gasoline Range Organics in ground water

BACKGROUND

A known release of gasoline fuel at this facility led to ground water contamination. Due to site activities, the length of the plume, and multiple properties being involved, typical technologies were determined to not be feasible. Implementation was completed using VertebraeT

SITE

Active Fueling Station and Farm Store, Greeley Colorado

CONTAMINATION

Diesel and Gasoline range organics including LNAPL. The LNAPL plume is approximately 20,000 square feet. The dissolved-phase plume, above RBSLs, is approximately 40,000 square feet.

OBJECTIVE

The design involved 5 VertebraeTM well systems to provide targeted air sparging (AS) utilizing 29 independent well segments

SITE

Confidential Site in South, FL

CONTAMINATION

Solvents

OBJECTIVE

One age old issue for proper site characterization is inaccessibility. Most sites have some type of building or structure in the way of completing an easy assessment. Often a building lies near or directly on top of a source of contamination where it matters most. Some buildings lend themselves to gathering limited data