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Xcel Energy
Denver, CO
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The Leyden Natural Gas Storage
Facility is a former coal mine cavern west of
Denver, Colorado that was used to store up to 2
million MCF of natural gas since 1959. Suburban
development of the metropolitan area prompted the
closure of the facility in 2001, and the cavern is
being flooded with water to remove the gas. During
this closure process, soil vapor wells above and
adjacent to the facility are monitored for methane
to prevent hazardous conditions and exposure to
nearby homes.
In addition to vapor intrusion
expertise, XcelEnergy (formally Public Service
Company of Colorado) needed an accurate, timely,
and simple method to disseminate an increasing
number of monitoring results to both the state
regulatory agency and the public.
Tom Liebert proposed and subsequently developed
a customized MS Access database with a simple,
single form interface that allows users to view
monitoring results in tabular or graph format.
Data are queried by clicking on maps of the site
and simple combo box date and compound selections.
The solution has been found efficient, portable,
and an effective tool for both regulators and
public understanding.
(Click on the image below to view an example) |
