Grosse Pointe Farms Water Treatment Plant - Executive Summary
Executive Summary |
This facility uses chlorine as required by federal and state regulations to reduce the risk of
diseases. Chlorine is an effective destroyer of pathogens in water. Our employees and
their families live here and we are all dedicated to the safe operation of our facility.
Policy: Safety of employees and the public of primary concern. As a part of the public
service sector, we are committed to protecting the public and the environment. Our
programs include an aggressive preventative maintenance program, extensive training and
coordination with local emergency response personnel to efficiently react to an
Description of the Facility: We treat the drinking water for our area. Part of the
process requires insuring that disease-causing pathogens do not cause outbreaks of
illnesses in the public. Chlorine is used to kill bacteria and other pathogens in our process.
Offsite Consequence Analysis of a Release: In accordance with the EPA rules, an
analysis of the impact distance in the case of a release of all chlorine connected to this
system was performed. This analysis was made using the EPA methods and guidance
available April 14, 1999. Stored chlorine not connected to the system and determined to
not be at reasonable risk was not included. This model includes a release of all chlorine
connected, failure of all safety systems and unfavorable weather conditions. The model
predicts the area, which could be affected by as little as 1/10 of the concentration of gas,
which is considered immediately dangerous to life and health. A circle was generated
which ignores wind direction. This circle has a radius of 1.3 miles.
An additional release scenario was modeled. In this case the accident used was believed
to be more likely and more likely weather conditions were used. We assumed that a valve
on one of the chlorine tanks malfunctioned and the full tank emptied in 1 hour. This gave
a potential impact radius of 0
Our system includes automatic alarms and we have procedures in place to respond to
There are strict licensing requirements to be a plant operator. In addition to our on-site
training and safety procedures, there are numerous government regulations affecting our
As part of the requirements of this EPA program, we carefully reviewed our accident
history for the last 5 years and we found that we have operated without a reportable
chlorine related incident. We are dedicated to safety and our record proves it.
In case of an emergency, our personnel will work with local fire department responders
and the Local Emergency Planning Committee. We have training every year for our
people and we coordinate with the fire department on a regular basis. Although we take
extensive precautions to prevent a chlorine release, we firmly believe in having a plan in
case of an emergency. This is the same philosophy, which leads to fire drills and f
We are constantly looking for methods to improve. As part of this program we
performed an extensive self-evaluation with the assistance of a professional consultant.
We did find some areas where we could do better such as providing a site map to the fire
department so they could better respond. This and other areas of possible improvement
are being addressed. To insure safety, we have instituted a new procedure to perform a
safety review of all mechanical or procedure changes.