banner ad
Experts Logo

articles

Legionnaires' Disease - Nothing Ironic At All

By: Tim Keane
Tel: (215) 996-1805
Email Mr. Keane
Website: www.legionellae.org.


Dr. Vincent Conte of the Miami - Dade County Health Department said about the EPIC hotel Legionnaires' disease outbreak, "What's ironic is the hotel installed a special filtration system to enhance the quality of their drinking water". Too many Legionnaires' disease outbreaks are caused by similar "ironic" scenarios. The 2006 International Plumbing code codified by the State of Florida and many other states as an example, requires hot water temperatures in buildings be maintained at a level that dramatically increases the risk for Legionnaires' disease. Many well intentioned codes, from EPA regulations to plumbing codes are making Legionella in building water plumbing systems more likely to cause disease and more difficult to control.

In fact, many Legionnaires' disease outbreaks are caused by "ironic", well intentioned plumbing system design and operational efforts. Some of the other well intentioned efforts that have caused Legionnaires' disease outbreaks include; energy efficiency, water savings, scald prevention, patient comfort, and even some outbreaks have been caused by items intended to minimize potential for Legionnaires' disease outbreaks. This is one reason why a significant percentage of Legionnaires' disease outbreaks are in buildings that are less than a year old. What's really ironic is that after 30 years of knowledge has been gained about this infection of plumbing systems, these systems are now as likely if not more likely to cause outbreaks due to modern codes, regulations, equipment and designs than ever before.

The recent outbreak at the EPIC Hotel, a less than one year old building, has raised eyebrows and gotten a lot of attention from property managers and owners across the country. The EPIC hotel reported revenue losses of $200,000 per day resulting from this outbreak, almost $3,000,000 for the two weeks it was not accepting guests because of a carbon water filter and maybe some other unreported issues as well.

Two critical issues in Legionnaires' disease outbreaks are;

  1. The root cause of the Outbreak. This root cause is frequently related to plumbing system design and / or operation. In some cases the outbreak root cause is due to external factors such as city water main breaks.
  2. The Outbreak Management. Outbreak Management can have a huge impact on how costly the outbreak is to the business. One apartment building after a Legionnaires' disease outbreak claimed over $5 Million in lost business. In this case the way the local health authority handled the outbreak had the greatest impact on the business loss. Once Legionnaires' Disease is confirmed, many states and local health authorities have a policy to immediately recommend the outbreak facility hire an independent, 3rd party Legionella engineering expert.

An independent, 3rd party Legionella engineering expert is critical because they have investigated many outbreaks, they understand plumbing system design and operation and they have the engineering expertise to know how to remediate the issue quickly, identify the source of the problem and to design cost effective solutions. Sometimes poorly managed Legionnaires' disease outbreaks can result in business loss costs that far exceed the personal injury litigation.

Most building owners believe the greatest risk for a Legionnaires' disease outbreak is from cooling towers and HVAC systems. This is not true at all. Methods to control, maintain and design cooling towers for minimizing the risk of legionella growth are widely understood and documented. Most facilities follow industry guidelines including ASHRAE and CTI for Legionella control in cooling towers by implementing the recommended design and operational protocols including use of oxidizing and non-oxidizing biocides.

Eighty percent of Legionnaires' disease outbreaks in buildings are caused by potable water systems. And unlike cooling towers, potable water systems are typically not being designed, treated or maintained to minimize the risk of Legionnaires' disease. As in cooling towers some of the products used in potable water systems as environmentally friendly solutions for controlling legionella are at best marginally effective and at worst increase the risk.

Plumbing products, designs and codes that foster legionella growth, biocides that are not approved for the application and investigators that don't understand plumbing systems are just a few of the many issues associated with Legionnaires' disease outbreaks that might be ironic if they weren't so commonplace and costly.

Legionnaires' Disease - The Disease of Modern Plumbing Systems and Costly Litigation

http://legionellae.org/relatedlinks/relatedlinks.htm

Legionella Guidelines

http://legionellae.org/guidelines/guidelines.htm


Tim Keane, is a Leading Expert on methods to Control, Mitigate and Assess the Risk for Legionella in building and industrial water systems. He has published articles on the subject nationally and internationally and has co-written regulatory documents including the 2005 guidelines for Ornamental Fountains.

©Copyright - All Rights Reserved

DO NOT REPRODUCE WITHOUT WRITTEN PERMISSION BY AUTHOR.

Related articles

timothy-minnich-meteorology-expert-photo.jpg

3/11/2024· Environment

Concerning The Remediation Of the Gowanus Canal Superfund Site

By: Timothy Minnich, MS, QEP

Inhalation exposure arising from implementation of the final Remedy, as designed, is shown to pose a significant danger to human safety. IDLH exceedances are predicted within broad areas along the Canal. Such exposure potential should have been reasonably anticipated based on existing EPA guidance.

timothy-minnich-meteorology-expert-photo.jpg

12/29/2022· Environment

Residential Soil Vapor Intrusion: An Independent Evaluation

By: Timothy Minnich, MS, QEP

The contaminated groundwater is attributable to past disposal practices of the nearby former Bay Shore/Brightwaters manufactured gas plant (MGP) currently being remediated by National Grid (formerly KeySpan). Injection of oxygen (O2) into the contaminated groundwater

Ted-Simon-Environmental-Toxicology-Expert-Photo.jpg

9/26/2016· Environment

Just Who Is At Risk? The Ethics of Environmental Regulation

By: Dr. Ted Simon

The willingness to view risk as part of daily life has vanished. A risk-averse mindset among environmental regulators engenders confusion between the ethics of intention and the ethics of consequence, leading to the elevation of the precautionary principle with unintended and often unfortunate outcomes. Environmental risk assessment is conservative, but the actual level of conservatism cannot be determined. High-end exposure assumptions and current toxicity criteria from the USEPA, based on linear extrapolation for carcinogens and default uncertainty factors for systemic toxicants, obscure the degree of conservatism in risk assessments. Ideally, one could choose a percentile of the target population to include within environmental standards, but this choice is complicated by the food, pharmaceutical and advertising industries, whose activities, inadvertent or not, often promote maladaptive and unhealthy lifestyle choices.

;
Experts.com-No broker Movie Ad

Follow us

linkedin logo youtube logo rss feed logo
;