Category Archives: News

Revised MAHC Modules Posted: Disinfection & Water Quality, Regulatory

Centers for Disease Control and Prevention (CDC) sent this bulletin on 1/24/2014

Model Aquatic Health Code

Thank you for your interest in the Model Aquatic Health Code (MAHC), a collaborative effort of public health, academia, and industry working to protect individuals, families, and communities from preventable waterborne diseases and injuries through evidence-based guidance. Read below for the latest information.

New

The Disinfection and Water Quality Module and the Regulatory Module have been revised and re-posted after the first public comment period. View the revised modules and the response to comments documents.

Reminders

The first full version of the MAHC is coming soon, and we want your feedback! We plan to release the first full version of the MAHC—a combination of all revised modules and supplemental information—in spring 2014 for a 60-day public comment period.

Get a head start!

Because the MAHC will be a long document, we encourage you to get a head start and begin compiling your comments now on the modules that have been revised after the first public comment period so that you have plenty of time to submit your feedback. The content of these modules will not change substantially, but we will have to reorganize information that may be duplicated in multiple modules and resolve conflicts where duplicate items make different recommendations. We will announce when the full version is posted and we are accepting public comments for 60 days.

Each module has a short synopsis or abstract highlighting the most critical recommendations.

You can monitor the status of all modules on the MAHC website.

All Stories

Revised MAHC Module Posted: Facility Design and Construction

Centers for Disease Control and Prevention (CDC) sent this bulletin at 12/16/2013 04:05 PM EST

Model Aquatic Health Code

December 16, 2013

Thank you for your interest in the Model Aquatic Health Code (MAHC), a collaborative effort of public health, academia, and industry working to protect individuals, families, and communities from preventable waterborne diseases and injuries through evidence-based guidance. Read below for the latest information.

New

The Facility Design and Construction Module has been revised and re-posted after the first public comment period. View the revised module and the response to comments document.

Reminders

Each module has a short synopsis or abstract highlighting the most critical recommendations.

You can monitor the status of all modules on the MAHC website.

2014 Pool & Spa Operator™ Handbook Released

The 2014 edition of the Pool & Spa OperatorHandbook, published by non-profit National Swimming Pool Foundation® (NSPF®), is now available and includes important updates and a new look. Offered in English and Spanish with both U.S. and Metric units, this fundamental training and reference manual is including operators, health officials, service who help keep pools safer, and open. Important updates to the 2014 version are found in Chapters 2, 6, 16, and Appendix C-3.

  • Chapter 2: Updated Material Safety Data Sheet section with information about transition to SDS (Safety Data Sheets) terminology and the Globally Harmonized System (GHS).
  • Chapter 6: A short section about the Ryznar Stability Index (RSI), another saturation index used by some industry professionals, has been added.
  • Chapter 16: Now includes a brief section, which describes the new Swimming Pool & Spa Routine Maintenance online course from NSPF.
  • Appendix C-3: A summary on two new Module Aquatic Health Code (MAHC) modules has been added: Fecal/Blood/Vomit Contamination Response module; and Preface/User Guide/Glossary modules are now included.

“NSPF has once again updated the Pool & Spa Operator handbook to be the most current reference manual in the industry. This will ensure that NSPF Instructors and professionals who focus on keeping pools and spas safer, and open, are educating to the most current industry standards,” said Alex Antoniou, Ph.D., NSPF Director of Educational Programs. The Pool & Spa Operator Handbook is also wearing a new cover with a copy of original artwork in pastel, titled “Swimmer” created in 1997, by acclaimed artist Mela Lyman, whose passion for swimming is often reflected in her artwork. Lyman has been on the faculty of The School of the Museum of Fine Arts Boston and the combined degree program at Tufts University for over 20 years. To see more of Mela Lyman’s art, visit www.MelaLyman.

MAHC Recirculation Systems and Filtration (CH Comments)

CDC posts the Model Aquatic Health Code’s module for Recirculation Systems and Filtration for public comment with a closing date of October 9, 2013. Hydrologicblog posted this announcement with the supporting documents.

Recirculation Systems and Filtration

The Counsilman – Hunsaker team posted a group response in support of the public comment requirements. This response can be viewed at the below link.

MAHC Recirculation Systems Filtration comments

MAHC Recirculation Systems and Filtration

CDC posts the Model Aquatic Health Code’s module for Recirculation Systems and Filtration for public comment with a closing date of October 9, 2013.

To view the latest updates regarding the Model Aquatic Health Code go to www.chh2o.com/MAHC.

The Recirculation Systems and Filtration module was initially released earlier this summer for public comment but has been re-released to encourage further review and feedback.

Health issues related to waterborne diseases as well as exposure to chemicals associated with pool water are increasingly being documented. The Recirculation Systems and Filtration Module is a first step towards improving water quality at aquatic facilities and reducing associated health effects. The Recirculation Systems and Filtration Module contains design and construction requirements that are, unless otherwise specified, applicable only for new or modified construction. New and improved elements include:

  1. More aggressive turnover times and more uniform standards for recirculation system design and operation.
  2. Filter design and operation standards that will promote more effective and efficient filtration.
  3. Requiring water replenishment to dilute out the dissolved contaminants that cannot be removed by pool filters.
  4. Development of a long-term plan to use pool filters for pathogen removal in addition to water clarity in a multiple barrier system that would complement all disinfection processes.
  5. Use of improved flow meters

MAHC Background:

The Model Aquatic Health Code (MAHC) effort began in February 2005 and the latest round of modules is being published for public comment. The MAHC will have a significant impact on the aquatic industry and we strongly encourage all industry members to take an active role in providing meaningful feedback to develop the best possible result.

The first industry standard was issued in 1958. In the subsequent 50 years, there have been at least 50 different state codes and many independent county codes. What was required in one jurisdiction may be illegal in another. It is clear that this historic approach is not working. Thus, the National Swimming Pool Foundation took a leadership position and provided funding to the Center for Disease Control (CDC) for the creation of the MAHC. The MAHC is intended to transform the patch work of industry codes into a data-driven, knowledge-based, risk reduction effort to prevent disease, injuries and promote healthy water experiences.