Potable Water Systems
Flushing, but not necessarily disinfection, is required in the system startup for Potable Water Systems.
What is FALSE
This is one major concern (listed in 188) of equipment siting and how it relates to Legionella.
What is...
- Potential contamination from building systems to be drawn into equipment
- equipment discharge into occupied or otherwise unwanted locations
- equipment siting that inhibits access to the equipment required for inspection
This is another name for Cartridge Filters
What are Canister Filters
What is the purpose of point-of-use mixing valves in relation to managing Legionella growth?
A higher water temperature is one of the primary methods of preventing Legionella growth, but also increases the risk of scalding. Point of use mixing valves allow the water temperature to remain high until right before use, minimizing the risk of Legionella growth in the distribution system.
What new water systems are referenced under the VHA 1061 February 2021 (compared to the 2014 version)?
- Outdoor non-potable, aerosol-generating water systems (cooling towers; irrigation systems)
This person(s) determines the exact actions to prevent exposure to contaminated water in the case of contingency response.
Who is.... The Program Team
This is the person(s) that specifies the duration of shutdown periods for Cooling Towers
Who are the Program Team
I am the person(s) that determine the pH range the Spa water must be within.
This is the threshold of water volume required for a water feature to be required for weekly water replacement
What is 5 gallons?
VA’s are required to utilize supplemental disinfection: True or False
False
These are the stipulations to Legionella testing in a contingency response plan.
Hint: i.e. the two details about the testing that must be documented
What is When and Where
This is designed to capture large water droplets caught in the cooling tower air stream to prevent the water droplets and mist from escaping the cooling tower.
What is a Drift Eliminator
I am the point in the day when Shock Disinfection should be distributed into the spa water
When is the end of the day?
This is the stipulation that is required for a water feature to be considered under 7.4 "Ornamental Fountains and Other Water Features"
What is if it releases water aerosols?
For most adults, what temperature will reduce the risk of scalding at the water outlet?
110 Fahrenheit. Anything above 117 Fahrenheit increases the risk of scalding significantly.
What do Eye Wash Stations and Showers have in common?
- Hint (in terms of water)
Why are they are both Low-use equipment?
These are 2 of the 3 components of microbiology that "Water Treatment" (as listed in 188) is said to control. (Cooling Towers)
What are any 2 of Activity, Scale, and Corrosion
I am the minimum required frequency for Microbiological testing of spa water.
What is monthly?
According to the CDC Toolkit, thermal remediation is not recommended in a potable water system. What is the VHA stance?
They do NOT agree
Each Department of Veterans Affairs (VA) medical facility that owns and operates one or more cooling tower systems must ensure that a Cooling Tower Policy and Cooling Tower Management Plan are developed for the system. How often should the Cooling Tower Management Plan be reviewed, updated, and certified? What about the Cooling Tower Policy?
The Cooling Tower Management Plan must be reviewed, certified, and updated annually at a minimum. The management plan includes the cooling tower inventory and systems risk analysis. The Cooling Tower Policy must be reviewed and updated whenever there are additions, significant changes or, at least every 5 years. (page 51 section 3)
These are all 5 building water systems listed under Section 7 requirements
What are...
- Potable, Cooling Towers and Evap. Condensers, Whirpool Spas, Ornamental Fountains and other Water Features, and Aerosol-Generating Misters/Atomizers/Air Washers/Humidifiers.
This is what to do when there are no local, regional, or national codes/regulations that pertain to the location of your air gap or back-flow preventer
This is the name of the type of bacteria that should be held at <200 CFU/mL (unless otherwise specified by local, regional, and national codes and regulations).
What is heterotrophic aerobic bacteria colony count?
This is the standard cleaning frequency for Ornamental Fountains under the guideline of ASHRAE 188.
What is...there is no specific frequency given. This is under the discretion of the Water Management Team.
1061 Requires an inventory of all cooling towers on campus. What does this inventory need to include?
Location, and make/model/size/date of manufacture.