Legionella Control and Water Management Plans PHIL CLARK

Legionella Control and Water Management Plans PHIL CLARK DEDIE CARLIN TOWER EQUIPMENT GARRATT-CALLAHAN Confidential and proprietary to Garratt-Callahan Company

ANSI/ASHRAE Standard 188 2019 Confidential and proprietary to Garratt-Callahan Company

Legionella General Overview • Legionella bacteria – Named after a 1976 outbreak, when many people who attended the American Legion Convention in PA fell ill from exposure to the bacteria. Confidential and proprietary to Garratt-Callahan Company

Legionella General Overview • Legionella causes Legionellosis with the following two distinctions: – Pontiac Fever – Legionnaires’ Disease Confidential and proprietary to Garratt-Callahan Company

Legionella Where it can be found… Confidential and proprietary to Garratt-Callahan Company

Legionella How it can enter and amplify in a water system… Confidential and proprietary to Garratt-Callahan Company

The Cause of it all. . . • Biofilm is ubiquitous – All distribution networks have Biofilm • Bacterial loading of incoming supply. • Temperature • Pipe Material • System age • System complexity • Water quality – Organics, Scale… • More…… Confidential and proprietary to Garratt-Callahan Company

Fixtures Confidential and proprietary to Garratt-Callahan Company

Legionella How it is transmitted… Inhalation Legionella in Water Confidential and proprietary to Garratt-Callahan Company Aspiration Susceptible individual

For many years, various government and Industry organizations have agreed that… • Waterborne Legionella bacteria can cause Legionnaires’ Disease • Minimizing Legionella in building water systems is the best strategy for reducing the risk of disease • Building water systems should be managed to minimize Legionella Confidential and proprietary to Garratt-Callahan Company

What is ASHRAE 188? LAW (NY-NJ-MA; soon PA) i. e. , SDWA - Safe Drinking Water Act (42 U. S. C. § 300 f) STANDARD i. e. , ASHRAE 188 GUIDELINE i. e. , ASHRAE 12 -2000 Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Titles – Comparison to Other Standards or Directives ASHRAE Water Management Program WHO Water Safety Plan HACCP Plan (Hazard Analysis and Critical Control Point) HACCP Water Plan Legionella HACCP Water Plan VHA HCA LD Prevention Plan Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Contents of the Written Plan – Comparison to Other Standards or Directives ASHRAE WHO HACCP VA Team members Water system inventory, including flow diagrams Locations where control measures should and can be applied Control measures with monitoring, frequency, performance limits, and corrective actions for each Verification procedures Validation procedures Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Terms – Comparison to Other Standards or Directives ASHRAE WHO HACCP VA Control location Control point Critical control points Water system management point Control measure Control limit Performance limit Critical limit Control limit Monitoring Corrective action Verification Validation Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Implement a Water Management Program… • If a building has… - Cooling towers or evaporative condensers - Whirlpool spas - Ornamental fountains - Misters, air washers, humidifiers, or other devices that release water droplets • And/or… - Multiple housing units with centralized hot water system - More than ten stories - Housing for occupants over age 65 - Patients staying >24 hours - An area or housing treating people with certain risk factors Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Control Measures must include (as applicable)… • • New Construction/Siting Startup/shutdown Inspections Maintenance Cleaning and disinfection Monitoring (e. g. , temperatures, disinfectant levels) Water treatment Response to Legionnaires’ disease For… • • • Potable/domestic water systems Cooling towers and evaporative condensers Public whirlpool spas Decorative fountains Misters, atomizers, air washers, humidifiers Confidential and proprietary to Garratt-Callahan Company

Garratt-Callahan Company WATER TREATMENT EXPERTISE SINCE 1904 ANSI/ASHRAE Standard 188 Essential Components of a Water Management Program Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Essential Components of a Water Management Plan for Legionella • 1: Form a team and choose a team leader Healthcare Facility Team Members would likely be… • Facilities Director • Administrator (i. e. , VP of Operations) • Infectious Disease Control Officer • Safety Director • Medical Director • Risk Management Officer • Chief Engineer • Consultant Confidential and proprietary to Garratt-Callahan Company Non-Healthcare Facility Team Members would likely be… • Facilities Director • Plant Manager/Chief Engineer • Safety Director • Housekeeping/Maintenance Department • Engineering Department • Consultant

ASHRAE 188 Essential Components of a Water Management Plan for Legionella • 2: Perform a water system inventory and create flow diagrams Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Essential Components of a Water Management Plan for Legionella • 3: Perform hazard analysis summaries including locations where control measures should and can be applied Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Essential Components of a Water Management Plan for Legionella • 4: Establish control measures with monitoring, performance limits, and corrective actions for each Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 Essential Components of a Water Management Plan for Legionella • 5: Establish verification procedures and validation methods Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 After the plan has been written… • Implement program • Implement the • • verification procedures Implement the validation methods Ongoing communication and meetings to review performance of program and maintain or update or revise as appropriate Confidential and proprietary to Garratt-Callahan Company

ASHRAE 188 In summary… Identify the applicable water systems and develop/write the plan Implement the plan Confidential and proprietary to Garratt-Callahan Company Verify and validate that the plan is effective Update or improve the plan as appropriate

ASHRAE 188 How G-C can assist you in developing your Water Management Plan Confidential and proprietary to Garratt-Callahan Company