ASSE IAPMO ANSI 12080:2020 pdf free download – Legionella Water Safety and Management Personnel
80-2.5.1 Te ASSE 12080 certifed specialist shall have basic knowledge of building water systems including:
a. Types and purpose of building water systems (e.g. hot and cold potable, cooling towers, pools and spas, decorative water features, other aerosol generating systems)
b. Major components and equipment which make up the mechanical systems of building water systems (e.g. backflow preventers, water treatment, flters, water heaters, pumps, balancing and thermostatic valves, cooling towers, etc.).
c. Potential for system design or equipment to contribute to growth of Legionella (e.g. equipment type, dead legs, temperature settings, valve positions).
d. The role of system design professionals in evaluating changes to an engineered mechanical system and the potential impacts on system performance or safety.
80-2.6.1 Te ASSE 12080 certifed specialist shall be able to plan, conduct, and advise on a risk assessment of a building water system, including:
a. Why a risk assessment is performed and basic components.
b. How to perform a risk assessment of common building water systems (potable water, cooling towers, decorative water features, whirlpool spas and pools, and aerosol generating systems) including sources and equipment.
c. Basic knowledge of water quality and chemistry.
d. Contents of a sampling plan for hazard control measures and validation testing, (Reference 80.2.8 Environmental Testing).
e. Testing equipment and sampling materials needed to conduct a risk assessment, including equipment calibration, if necessary.
f. Contents of a risk assessment, including the following minimum elements:
1) Background information including type of building, occupants and use.
2) Facility and building water system characteristics, including review of system drawings, design intent, equipment, materials, piping terminal units/ components and confguration.
3) Water quality analysis (chemistry and physicochemical data).
4) Legionella analysis (laboratory data).
5) Recommendations for mitigation approaches based on the building water system risk assessment survey, water quality data, Legionella test data, and analysis of the engineering drawings.
80-2.7.1 The ASSE 12080 certified specialist shall have knowledge of local, state and city risk assessment requirements and knowledge of mitigation and remediation methods to control the growth and spread of Legionella in building water systems, including:
a. How process control, flushing, mechanical changes, equipment adjustments, filtration, and supplemental disinfection afect short- and long-term control.
b. Process for evaluating efcacy of a supplemental disinfection technology.
c. Mitigation approaches for start-up, commissioning, short-term, and long-term activities.
1) Diferent methods for Legionella mitigation during commissioning or start-up of a building water system, including process and limitations.
2) Diferent methods for emergency or short- term Legionella remediation, including process and limitations.
3) Different methods for continuous or long-term Legionella mitigation, including process and limitations.
4) Water quality (chemistry) characteristics that may affect the efficacy of each mitigation approach.
d. Consequences associated with mitigation and remediation methods including potential for re-growth of Legionella, chemical exposure, disinfection by-products, corrosion, etc.
e. Proactive approaches to determining the need for supplemental disinfection.
f. Differences in mitigation efficacy between Legionella and other opportunistic pathogens.
g. Requirements for implementation of supplemental disinfectants in building water systems, including AHJ, water quality limits, and permit requirements. This includes an understanding of the relevant sections of the Safe Drinking Water Act as it relates to disinfectants, disinfection byproducts, treatment techniques, and primary and secondary contaminants. h. Monitoring plan, including monitoring locations, quantity, frequency, and limits, to evaluate efcacy of the mitigation approach.