health and safety concerns associated with its use. It is the responsibility of the user of this document to establish appropriate health and safety practices and determine the applicability of regulatory limitations prior to each use.#
Indoor / Outdoor Environment 111 5.6.1
Lighting 111 5.6.2 A Indoor Aquatic Facility Ventilation 112 5.6. 3 Indoor / Outdoor Aquatic Facility Electrical Systems and Components 113 5.6. 4 Facility Heating 115 5.6.5
First Aid Room  115 5.6.6
Emergency Exit 115 5.6.7
Plumbing 115 5.6.8 Solid Waste Management 116 5.6.9
Decks 116 5.6.10 Aquatic Facility Maintenance 117 5.7
Recirculation and Water Treatment 118 5.7. 1 Recirculation Systems and Equipment 118 5.7.2 Filtration 120 5.7. 3 Water Treatment Chemicals and Systems 122 5.7. 4 Water Sample Collection and Testing 128 5.7.5 A Water Quality Chemical Testing "Air Handling System" means equipment that brings in outdoor air into a building and removes air from a building for the purpose of introducing air with fewer contaminants and removing air with contaminants created while bathers are using aquatic venues. The system contains components that move and condition the air for temperature, humidity, and pressure control, and transport and distribute the air to prevent condensation, corrosion, and stratification, provide acceptable indoor air quality, and deliver outside air to the breathing zone.
"Agitated Water" means an aquatic venue with mechanical means (aquatic features) to discharge, spray, or move the water's surface above and/or below the static water line of the aquatic venue. Where there is no static water line, movement shall be considered above the deck plane.
"Alpha Bar" see "Average Sound Absorption Coefficient" "Aquatic Facility" means a physical place that contains one or more aquatic venues and support infrastructure.
"Aquatic Feature" means an individual component within an aquatic venue. Examples include slides, structures designed to be climbed or walked across, and structures that create falling or shooting water.
"Aquatic Facility or Aquatic Venue Enclosure" means an uninterrupted barrier surrounding and securing an aquatic facility or aquatic venue.
"Aquatic Venue" means an artificially constructed structure or modified natural structure where the general public is exposed to water intended for recreational or therapeutic purpose and where the primary intended use is not watering livestock, irrigation, water storage, fishing, or habitat for aquatic life. Such structures do not necessarily contain standing water, so water exposure may occur via contact, ingestion, or aerosolization. Examples include swimming pools, wave pools, lazy rivers, surf pools, spas (including spa pools and hot tubs), therapy pools, waterslide landing pools, spray pads, and other interactive water venues.
- "Increased Risk Aquatic Venue" means an aquatic venue which due to its intrinsic characteristics and intended users has a greater likelihood of affecting the health of the bathers of that venue by being at increased risk for microbial contamination (e.g., by children less than 5 years old) or being used by people that may be more susceptible to infection (e.g., therapy patients with open wounds). Examples of increased-risk aquatic venues include spray pads, wading pools and other aquatic venues designed for children less than 5 years old as well as therapy pools.
- "Lazy River" means a channeled flow of water of nearconstant depth in which the water is moved by pumps or other means of propulsion to provide a riverlike flow that transports bathers over a defined path. A lazy river may include play features and devices. A lazy river may also be referred to as a tubing pool, leisure river, leisure pool or a current channel.
- "Spa" means a structure intended for either warm or cold water where prolonged exposure is not intended. Spa structures are intended to be used for bathing or other recreational uses and are not usually drained and refilled after each use. It may include, but is not limited to, hydrotherapy, air induction bubbles, and recirculation. - "Special Use Aquatic Venue" means aquatic venues that do not meet the intended use and design features of any other aquatic venue or pool listed/identified in this Code.
3.0 Glossary of Acronyms, Initialisms, Terms, and Codes 13 "Chlorine" means an element that at room temperature and pressure is a heavy greenish yellow gas with a characteristic penetrating and irritating smell; it is extremely toxic. It can be compressed in liquid form and stored in heavy steel tanks. When mixed with water, chlorine gas forms hypochlorous acid (HOCl), the primary chlorine-based disinfecting agent, hypochlorite ion, and hydrochloric acid. HOCl dissociation to hypochlorite ion is highly pH dependent. Chlorine is a general term used in the MAHC which refers to HOCl and hypochlorite ion in aqueous solution derived from chlorine gas or a variety of chlorine-based disinfecting agents.
- "Available Chlorine" means the amount of chlorine in the +1 oxidation state, which is the reactive, oxidized form. In contrast, chloride ion (Cl -) is in the -1 oxidation state, which is the inert, reduced state. Available Chlorine is subdivided into Free Available Chlorine and Combined Available Chlorine. Pool chemicals containing Available Chlorine are both oxidizers and disinfectants. Elemental chlorine (Cl2) is defined as containing 100% available chlorine. The concentration of Available Chlorine in water is normally reported as mg/L (ppm) "as Cl2", that is, the concentration is measured on a Cl2 basis, regardless of the source of the Available Chlorine. - "Free Chlorine Residual" OR "Free Available Chlorine" means the portion of the total available chlorine that is not "combined chlorine" and is present as HOCl or hypochlorite ion (OCl -).The pH of the water determines the relative amounts of HOCl and hypochlorite ion. HOCl is a very effective bactericide and is the active bactericide in pool water. OClis also a bactericide, but acts more slowly than HOCl. Thus, chlorine is a more effective bactericide at low pH than at high pH. A free chlorine residual must be maintained for adequate disinfection. "Circulation Path" means an exterior or interior way of passage from one part of an aquatic facility to another for pedestrians, including, but not limited to walkways, pathways, decks, and stairways. This must be considered in relation to ADA. "Cleansing Shower" See "Shower."
"Code" means a systematic statement of a body of law, especially one given statutory force.
"Combustion Device" means any appliance or equipment using fire. These include, but may not be limited to, gas or oil furnaces, boilers, pool heaters, domestic water heaters, etc.
"Contamination Response Plan" means a plan for handling contamination from formed-stool, diarrheal-stool, vomit, and blood.
"Contaminant" means a substance that soils, stains, corrupts, or infects another substance by contact or association.
"Corrosive Materials" means pool chemicals, fertilizers, cleaning chemicals, oxidizing cleaning materials, salt, de-icing chemicals, other corrosive or oxidizing materials, pesticides, and such other materials which may cause injury to people or damage to the building, air-handling equipment, electrical equipment, safety equipment, or fire-suppression equipment, whether by direct contact or by contact via fumes or vapors, whether in original form or in a foreseeably likely decomposition, pyrolysis, or polymerization form. Refer to labels and SDS forms.
"Crack" means any and all breaks in the structural shell of a pool vessel or deck.
"Cross-Connection" means a connection or arrangement, physical or otherwise, between a potable water supply system and a plumbing fixture, tank, receptor, equipment, or device, through which it may be possible for nonpotable, used, unclean, polluted and contaminated water, or other substances to enter into a part of such potable water system under any condition.
"CT Inactivation Value" means a representation of the concentration of the disinfectant (C) multiplied by time in minutes (T) needed for inactivation of a particular contaminant. The concentration and time are inversely proportional; therefore, the higher the concentration of the disinfectant, the shorter the contact time required for inactivation. The CT Value can vary with pH or temperature change so these values must also be supplied to allow comparison between values.

# MAHC CODE
3.0 Glossary of Acronyms, Initialisms, Terms, and Codes 14 "Deck" means surface areas serving the aquatic venue, including the dry deck, perimeter deck, and pool deck.
- "Dry Deck" means all pedestrian surface areas within the aquatic venue enclosure not subject to frequent splashing or constant wet foot traffic. The dry deck is not perimeter deck or pool deck, which connect the pool to adjacent amenities, entrances, and exits. Landscape areas are not included in this definition.
- "Perimeter Deck" means the hardscape surface area immediately adjacent to and within 4 feet (1.2 m) of the edge of the swimming pool also known as the "wet deck" area. - "Pool Deck" means surface areas serving the aquatic venue, beyond perimeter deck, which is expected to be regularly trafficked and made wet by bathers. "Diaper-Changing Station" means a hygiene station that includes a diaper-changing unit, hand-washing sink, soap and dispenser, a means for drying hands, trash receptacle, and disinfectant products to clean after use. "Diaper-Changing Unit" means a diaper-changing surface that is part of a diaper-changing station.
"Disinfection" means a treatment that kills or irreversibly inactivates microorganisms (e.g., bacteria, viruses, and parasites); in water treatment, a chemical (commonly chlorine, chloramine, or ozone) or physical process (e.g., ultraviolet radiation) can be used. "Disinfection By-Product" (DBP) means a chemical compound formed by the reaction of a disinfectant (e.g. chlorine) with a precursor (e.g. natural organic matter, nitrogenous waste from bathers) in a water system (pool, water supply). "Diving Pool" See "Pool." "Drop Slide" See "Slide." "Dry Deck" See "Deck." "Emergency Action Plan" (EAP) means a plan that identifies the objectives that need to be met for a specific type of emergency, who will respond, what each person's role will be during the response. and what equipment is required as part of the response.
"Enclosure" means an uninterrupted constructed feature or obstacle used to surround and secure an area that is intended to deter or effectively prevent unpermitted, uncontrolled, and unfettered access . It is designed to resist climbing and to prevent passage through it and under it. Enclosure can apply to aquatic facilities or aquatic venues.
"EPA Registered" means all products regulated and registered under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) by the EPA; . EPA registered products will have a registration number on the label (usually it will state "EPA Reg No." followed by a series of numbers). This registration number can be verified by using the EPA National Pesticide Information Retrieval System (/#). "Equipment Room or Area" means a space intended for the operation of pool pumps, filters, heaters, and controllers. This space is not intended for the storage of hazardous pool chemicals.
"Exit Gate" means an emergency exit, which is a gate or door allowing free exit at all times.
"Expansion Joint" means a watertight joint provided in a pool vessel used to relieve flexural stresses due to movement caused by thermal expansion/contraction. "Flat Water" means an aquatic venue in which the water line is static except for movement made by users. Diving spargers do not void the flat water definition. "Floatation Tank Solution" means a saturated solution of magnesium sulfate having a specific gravity of 1.23 to 1.3.
"Flume" means the riding channels of a waterslide which accommodate riders using or not using mats, tubes, rafts, and other transport vehicles as they slide along a path lubricated by a water flow.
"Foot Baths" means standing water in which bathers or aquatics staff rinse their feet.
"Free Chlorine Residual" OR "Free Available Chlorine" See "Chlorine."
"Ground-Fault Circuit Interrupter" (GFCI) means a device for protection of personnel that de-energizes an electrical circuit or portion thereof in the event of excessive ground current.
"Hand Wash Station" means a location which has a hand wash sink, adjacent soap with dispenser, hand drying device or paper towels and dispenser, and trash receptacle.
"Hot Water" means an aquatic venue with water temperature over 90 degrees Fahrenheit (30 degrees Celsius).
"Hygiene Facility" means a structure or part of a structure that contains toilet, shower, diaper-changing unit, hand wash station, and dressing capabilities serving bathers and patrons at an aquatic facility.
"Hygiene Fixtures" means all components necessary for hygiene facilities including plumbing fixtures, diaperchanging stations, hand wash stations, trashcans, soap dispensers, paper towel dispensers or hand dryers, and toilet paper dispensers.
"Hyperchlorination" means the intentional and specific raising of chlorine levels for a prolonged period of time to inactivate pathogens following a fecal or vomit release in an aquatic venue as outlined in MAHC 6.5.
"Imminent Health Hazard" means a significant threat or danger to health that is considered to exist when there is evidence sufficient to show that a product, practice, circumstance, or event creates a situation that requires immediate correction or cessation of operation to prevent injury based on the number of potential injuries and the nature, severity, and duration of the anticipated injury or illness. "Increased Risk Aquatic Venue" See "Aquatic Venue." "Indoor Aquatic Facility" means a physical place that contains one or more aquatic venues and the surrounding bather and spectator/stadium seating areas within a structure that meets the definition of "Building" per the 2012 International Building Code (IBC). It does not include equipment, chemical storage, or bather hygiene rooms or any other rooms with a direct opening to the aquatic facility. Otherwise known as a natatorium.
"Infinity Edge" means a pool wall structure and adjacent perimeter deck that is designed in such a way where the top of the pool wall and adjacent deck are not visible from certain vantage points in the pool or from the opposite side of the pool. Water from the pool flows over the edge and is captured and treated for reuse through the normal pool filtration system. They are often also referred to as "vanishing edges," "negative edges," or "zero edges." "Inlet" means wall or floor fittings where treated water is returned to the pool.
"Interactive Water Play Aquatic Venue" means any indoor or outdoor installation that includes sprayed, jetted or other water sources contacting bathers and not incorporating standing or captured water as part of the bather activity area. These aquatic venues are also known as splash pads, spray pads, wet decks. For the purposes of the MAHC, only those designed to recirculate water and intended for public use and recreation shall be regulated.

# MAHC CODE
3.0 Glossary of Acronyms, Initialisms, Terms, and Codes 16 "Interior Space" means any substantially enclosed space having a roof and having a wall or walls which might reduce the free flow of outdoor air. Ventilation openings, fans, blowers, windows, doors, etc., shall not be construed as allowing free flow of outdoor air.
"Island" means a structure inside a pool where the perimeter is completely surrounded by the pool water and the top is above the surface of the pool. "Landing Pool" See "Pool." "Lazy River" See "Aquatic Venue." "Lifeguard Supervisor" means an individual responsible for the oversight of lifeguard performance and emergency response at an aquatic facility. A qualified lifeguard supervisor is an individual who has successfully completed a lifeguard supervisor training course and holds an unexpired certificate for such training; and who has met the pre-service and continuing in-service requirements of the aquatic facility according to this code.
"mg/L" means milligrams per liter and is the equivalent metric measure to parts per million (ppm).
"Monitor" means the regular and purposeful observation and checking of systems or facilities and recording of data, including system alerts, excursions from acceptable ranges, and other facility issues. Monitoring includes human or electronic means.
"Moveable Floors" means a pool floor whose depth varies through the use of controls.
"No Diving Marker" means a sign with the words "No Diving" and the universal international symbol for "No Diving" pictured as an image of a diver with a red circle with a slash through it.
"Noise Criterion" means the single number rating that is somewhat sensitive to the relative loudness and speech interference properties of a given noise spectrum. The method consists of a family of criterion curves extending from 63 to 8,000 Hz and a tangency rating procedure. The criterion curves define the limits of octave band spectra that must not be exceeded to meet occupant acceptance in certain spaces.
"Oocyst" means the thick-walled, environmentally resistant structure released in the feces of infected animals that serves to transfer the infectious stages of sporozoan parasites (e.g., Cryptosporidium) to new hosts.
"Oxidation" means the process of changing the chemical structure of water contaminants by either increasing the number of oxygen atoms or reducing the number of electrons of the contaminant or other chemical reaction, which allows the contaminant to be more readily removed from the water or made more soluble in the water. It is the "chemical cleaning" of pool water. Oxidation can be achieved by common disinfectants (e.g., chlorine, bromine), secondary disinfection/sanitation systems (e.g. ozone) and oxidizers (e.g. potassium monopersulfate).
"Oxidation Reduction Potential" (ORP) means a measure of the tendency for a solution to either gain or lose electrons; higher (more positive) oxidation reduction potential indicates a more oxidative solution.
"Patron" means a bather or other person or occupant at an aquatic facility who may or may not have contact with aquatic venue water either through partial or total immersion. Patrons may not have contact with aquatic venue water, but could still be exposed to potential contamination from the aquatic facility air, surfaces, or aerosols. "Peninsula / Wing Wall" means a structural projection into a pool intended to provide separation within the body of water. "Perimeter Deck" See "Deck." "Perimeter Gutter System" means the alternative to skimmers as a method to remove water from the pool's surface for treatment. The gutter provides a level structure along the pool perimeter versus intermittent skimmers.
3.0 Glossary of Acronyms, Initialisms, Terms, and Codes 17 "Plumbing Fixture" means a receptacle, fixture, or device that is connected to a water supply system or discharges to a drainage system or both and may be used for the distribution and use of water; for example: toilets, urinals, showers, and hose bibs. Such receptacles, fixtures, or devices require a supply of water; or discharge liquid waste or liquid-borne solid waste; or require a supply of water and discharge waste to a drainage system.
"pH" means the negative log of the concentration of hydrogen ions. When water ionizes, it produces hydrogen ions (H+) and hydroxide ions (OH-). If there is an excess of hydrogen ions the water is acidic. If there is an excess of hydroxide ions the water is basic. pH ranges from 0 to 14. Pure water has a pH of 7.0. If pH is higher than 7.0, the water is said to be basic, or alkaline. If the water's pH is lower than 7.0, the water is acidic. As pH is raised, more HOCl ionization occurs and chlorine disinfectants decrease in effectiveness.
"Pool" means a subset of aquatic venues designed to have standing water for total or partial bather immersion. This does not include spas.
- "Activity Pool" means a water attraction designed primarily for play activity that uses constructed features and devices including pad walks, flotation devices, and similar attractions. - "Diving Pool" means a pool used exclusively for diving.
- "Landing Pool" means an aquatic venue or designated section of an aquatic venue located at the exit of one or more waterslide flumes. The body of water is intended and designed to receive a bather emerging from the flume for the purpose of terminating the slide action and providing a means of exit to a deck or walkway area.
- "Skimmer Pool" means a pool using a skimmer system.
- "Surf Pool" means any pool designed to generate waves dedicated to the activity of surfing on a surfboard or analogous surfing device commonly used in the ocean and intended for sport as opposed to general play intent for wave pools. - "Therapy Pool" means a pool used exclusively for aquatic therapy, physical therapy, and/or rehabilitation to treat a diagnosed injury, illness, or medical condition, wherein the therapy is provided under the direct supervision of a licensed physical therapist, occupational therapist, or athletic trainer. This could include wound patients or immunocompromised patients whose health could be impacted if there is not additional water quality protection. - "Wading Pool" means any pool used exclusively for wading and intended for use by young children where the depth does not exceed 2 feet (0.6 m).
- "Wave Pools" means any pool designed to simulate breaking or cyclic waves for purposes of general play. A wave pool is not the same as a surf pool, which generates waves dedicated to the activity of surfing on a surfboard or analogous surfing device commonly used in the ocean and intended for sport as opposed to general play intent for wave pools. "Pool Deck" See "Deck." "Pool Slide" See "Slide." "Public Water Systems" means water systems including community water systems, non-transient/noncommunity water systems, or transient non-community water systems with exceptions as noted by AHJ and EPA.

# "Recessed
Steps" means a way of ingress/egress for a pool similar to a ladder but the individual treads are recessed into the pool wall.
"Recirculation System" means the combination of the main drain, gutter or skimmer, inlets, piping, pumps, controls, surge tank or balance tank to provide pool water recirculation to and from the pool and the treatment systems.
"Reduction Equivalent Dose (RED) bias" means a variable used in UV system validation to account for differences in UV sensitivity between the UV system challenge microbe (e.g., MS2 virus) and the actual microbe to be inactivated (e.g., Cryptosporidium).
"Re-entrainment" means a situation where the exhaust(s) from a ventilated source such as an indoor aquatic facility is located too close to the air handling system intake(s), which allows the exhausted air to be re-captured by the air handling system so it is transported directly back into the aquatic facility.
"Responsible Supervisor" means an individual on-site that is responsible for water treatment operations when a "qualified operator" is not on-site at an aquatic facility. "Rinse Shower" See "Shower." "Robotic Cleaner" means a modular vacuum system consisting of a motor-driven, in-pool suction device, either self-powered or powered through a low voltage cable, which is connected to a deck-side power supply.
"Runout" means that part of a waterslide where riders are intended to decelerate and/or come to a stop. The runout is a continuation of the waterslide flume surface.
"Safety" (as it relates to construction items) means a design standard intended to prevent inadvertent or hazardous operation or use (i.e., a passive engineering strategy).
"Safety Plan" means a written document that has procedures, requirements and/or standards related to safety which the aquatic facility staff shall follow. These plans include training, emergency response, and operations procedures.
"Safety Team" means any employee of the aquatic facility with job responsibilities related to the aquatic facility's emergency action plan.
"Sanitize" means reducing the level of microbes to that considered safe by public health standards (usually 99.999%). This may be achieved through a variety of chemical or physical means including chemical treatment, physical cleaning, or drying. "Saturation Index" means a mathematical representation or scale representing the ability of water to deposit calcium carbonate, or dissolve metal, concrete or grout.
"Secondary Disinfection Systems" means those disinfection processes or systems installed in addition to the standard systems required on all aquatic venues, which are required to be used for increased risk aquatic venues.
"Shower" means a device that sprays water on the body.
- "Cleansing Shower" means a shower located within a hygiene facility using warm water and soap. The purpose of these showers is to remove contaminants including perianal fecal material, sweat, skin cells, personal care products, and dirt before bathers enter the aquatic venue.
3.0 Glossary of Acronyms, Initialisms, Terms, and Codes 19 - "Rinse Shower" means a shower typically located in the pool deck area with ambient temperature water.
The main purpose is to remove dirt, sand, or organic material prior to entering the aquatic venue to reduce the introduction of contaminants and the formation of disinfection by-products. "Skimmer" means a device installed in the pool wall whose purpose is to remove floating debris and surface water to the filter. They shall include a weir to allow for the automatic adjustment to small changes in water level, maintaining skimming of the surface water. "Skimmer Pool" See "Pool." "Skimmer System" means periodic locations along the top of the pool wall for removal of water from the pool's surface for treatment.
"Slide" means an aquatic feature where users slide down from an elevated height into water.
- "Drop Slide" means a slide that drops bathers into the water from a height above the water versus delivering the bather to the water entry point.
- "Pool Slide" means a slide having a configuration as defined in The Code of Federal Regulations (CFR)
Ch. II, Title 16 Part 1207 by CSPC, or is similar in construction to a playground slide used to allow users to slide from an elevated height to a pool. They shall include children's (tot) slides and all other nonflume slides that are mounted on the pool deck or within the basin of a public swimming pool.
- "Waterslide" means a slide that runs into a landing pool or runout through a fabricated channel with flowing water. "Sound Absorption" means (1) the process of dissipating sound energy and (2) the property possessed by materials, objects and structures, such as rooms, for absorbing sound energy.
"Spa" See "Aquatic Venue." "Special Use Aquatic Venue" See "Aquatic Venue." "Standard" means something established by authority, custom, or general consent as a model or example.
"Storage" means the condition of remaining in one space for 1 hour or more. Materials in a closed pipe or tube awaiting transfer to another location shall not be considered to be stored. "Structural Crack" means a break or split in the pool surface that weakens the structural integrity of the vessel. "Substantial Alteration" means the alteration, modification, or renovation of an aquatic venue (for outdoor aquatic facilities) or indoor aquatic facility (for indoor aquatic facilities) where the total cost of the work exceeds 50% of the replacement cost of the aquatic venue (for outdoor aquatic facilities) or indoor aquatic facility (for indoor aquatic facilities).
"Superchlorination" means the addition of large quantities of chlorine-based chemicals to kill algae, destroy odors, or improve the ability to maintain a disinfectant residual. This process is different from hyperchlorination, which is a prescribed amount to achieve a specific CT inactivation value whereas superchlorination is the raising of free chlorine levels for water quality maintenance.
"Supplemental Treatment Systems" means those disinfection processes or systems which are not required on an aquatic venue for health and safety reasons. They may be used to enhance overall system performance and improve water quality. "Surf Pool" See "Pool." "Theoretical Peak Occupancy" means the anticipated peak number of bathers in an aquatic venue or the anticipated peak number of occupants of the decks of an aquatic facility. This is the lower limit of peak occupancy to be used for design purposes for determining services that support occupants. Theoretical peak occupancy is 2018 MAHC CODE 3.0 Glossary of Acronyms, Initialisms, Terms, and Codes 20 used to determine the number of showers. For aquatic venues, the theoretical peak occupancy is calculated around the type of water use or space:
- "Flat Water" means an aquatic venue in which the water line is static except for movement made by users usually as a horizontal use as in swimming. Diving spargers do not void the flat water definition.
- "Agitated Water" means an aquatic venue with mechanical means (aquatic features) to discharge, spray, or move the water's surface above and/or below the static water line of the aquatic venue so people are standing or playing vertically. Where there is no static water line, movement shall be considered above the deck plane.
- "Hot Water" means an aquatic venue with a water temperature over 90 o F (32 o C).
- "Stadium Seating" means an area of high-occupancy seating provided above the pool level for observation. "Therapy Pool" See "Pool." "Toe Ledge" See "Underwater Ledge." "Turnover" or "Turnover Rate" or "Turnover Time" means the period of time, usually expressed in hours, required to circulate a volume of water equal to the capacity of the aquatic venue.
"Underwater Bench" means a submerged seat with or without hydrotherapy jets. "Underwater Ledge" or "Underwater Toe Ledge" means a continuous step in the pool wall that allows swimmers to rest by standing without treading water. "Wading Pool" See "Pool." "Waterslide" See "Slide." "Water Replenishment System" means a way to remove water from the pool as needed and replace with makeup water in order to maintain water quality. "Water Quality Testing Device" (WQTD) means a product designed to measure the level of a parameter in water. A WQTD includes a device or method to provide a visual indication of a parameter level, and may include one or more reagents and accessory items. "Wave Pools" See "Pool." "Wing Wall / Peninsula" See "Peninsula / Wing Wall." "Zero Depth Entry" means a sloped entry into a pool from deck level into the interior of the pool as a means of access and egress.

# Codes, Standards, and Laws Referenced in the MAHC Code

# Air Conditioning Contractors of America (ACCA)

# Transitional Areas
Stairs shall not be used underwater to transition between two sections of POOL of different depths. Note: The bottom riser may vary due to potential cross slopes with the POOL floor; however, the bottom step riser may not exceed the maximum allowable height required by this section.

# Top Surface
The top surface of the uppermost stair tread shall be located not more than 12 inches (30.5 cm) below the POOL coping or DECK.

# A
Perimeter Gutter Systems For POOLS with PERIMETER GUTTER SYSTEMS, the gutter may serve as a step, provided that the gutter is provided with a grating or cover and conforms to all construction and dimensional requirements herein specified.

# Corrosion-resistant
Handrails shall be constructed of corrosion-resistant materials, and anchored securely.

# A Upper Railing
The upper railing surface of handrails shall extend above the POOL coping or DECK a minimum of 28 inches (71.1 cm).

# Wider Than Five Feet
Support Handrails shall be designed to resist a load of 50 pounds (22.7 kg) per linear foot applied in any direction and independently a single concentrated load of 200 pounds (90.7 kg) applied in any direction at any location.

# Transfer Loads
Hand rails shall be designed to transfer these loads through the supports to the POOL or DECK structure.

# A Dimensions
Dimensions of handrails shall conform to requirements of MAHC Table 4.5.5.7
and MAHC Figure 4.5.5.7.1.

# Anchored
Grab rails shall be anchored securely.
Provided Grab rails shall be provided at both sides of RECESSED STEPS.

# Clear Space
The horizontal clear space between grab rails shall be not less than 18 inches (45.7 cm) and not more than 24 inches (61.0 cm).

# Upper Railing
The upper railing surface of grab rails shall extend above the POOL coping or DECK a minimum of 28 inches (71.1 cm).
Support Grab rails shall be designed to resist a load of 50 pounds (22.7 kg) per linear foot applied in any direction and independently a single concentrated load of 200 pounds (90.7 kg) applied in any direction at any location.

# Transfer Loads

# Vertical Measurement
The posted water depth shall be the water level to the floor of the AQUATIC VENUE according to a vertical measurement taken 3 feet (0.9 m) from the AQUATIC VENUE wall.

# Signage
A sign shall be posted to inform the public that the AQUATIC VENUE has a varied depth and refer to the sign showing the current depth. 4.6.1.5.1.1 Location Such underwater lights, in conjunction with overhead or equivalent DECK lighting, shall be located to provide illumination so that all portions of the AQUATIC VENUE, including the AQUATIC VENUE bottom and drain(s), may be readily seen.

# Spas
Higher Light Levels Higher underwater light levels shall be considered for deeper water to achieve this outcome.
Dimmable Lighting Dimmable lighting shall not be used for underwater lighting.

# Footcandles
The path of egress shall be illuminated to at least a value of 0.5 footcandles (5.4 lux).

# A Relative Humidity
The AIR HANDLING SYSTEM shall maintain the relative humidity in the space as defined in ASHRAE Handbook: HVAC Applications, 2011, Places of Assembly, Natatoriums.

# Dew Point
The AIR HANDLING SYSTEM shall be designed to maintain the dew point of the INTERIOR SPACE less than the dew point of the interior walls at all times so as to prevent damage to structural members and to prevent biological growth on walls.
Condensation & Mold Control The AIR HANDLING SYSTEM shall be designed to achieve several objectives including 1) Maintaining space conditions, 2) Delivering the outside air to the breathing area, and 3) Flushing the outside walls and windows, which can have the lowest surface temperature and therefore the greatest chance for condensation.
Access Control The AIR HANDLING SYSTEM shall be designed to provide a means to limit physical or electronic access to system control to the operator and anyone the operator deems to have access.
Air Handling System Commissioning
System Commissioning A qualified, licensed professional shall commission the AIR HANDLING SYSTEM to verify that the installed system is operating properly in accordance with the system design.

# Written Statement
A written statement of commissioning shall be provided to the AQUATIC FACILITY owner including but not limited to:
1) The number of cfm of outdoor air flowing into the INDOOR AQUATIC FACILITY at the time of commissioning; 2) The number of cfm of exhaust air flowing through the system at the time of commissioning; and, 3) A statement that the amount of outdoor air meets the performance requirements of MAHC 4.6.2.7.
Indoor
Sealed and Inert Where required, the electrical conduit in an interior CHEMICAL STORAGE SPACE shall be sealed and made of materials that will not interact with any chemicals in the CHEMICAL STORAGE SPACE.

# A
Electrical Devices Electrical devices or equipment shall not occupy an interior CHEMICAL STORAGE SPACE, except as required to service devices integral to the function of the room, such as pumps, vessels, controls, lighting and SAFETY devices.

# A
Protected Against Breakage Lamps, including fluorescent tubes, installed in interior CHEMICAL STORAGE SPACES shall be protected against breakage with a lens or other cover, or be otherwise protected against the accidental release of hot materials.

# Pressure Relief Device
Where POOL water heating equipment is installed with valves capable of isolating the heating equipment from the POOL, a listed pressure-relief device shall be installed to limit the pressure on the heating equipment to no more than the maximum value specified by the heatingequipment manufacturer and applicable CODES.
Code Compliance POOL-water heating equipment shall be selected and installed to preserve compliance with the applicable CODES, the terms of listing and labeling of equipment, and with the equipment manufacturer's installation instructions and applicable CODES.

# A Equipment Room Requirements
Where POOL water heaters use COMBUSTION and are located inside a building, the space in which the heater is located shall be considered to be an EQUIPMENT ROOM, and the requirements of MAHC 4.9.1 shall apply.
Carbon Monoxide Detector A carbon monoxide detector with local alarming, CERTIFIED, LISTED, AND LABELED in accordance with UL 2075, shall be installed in all such EQUIPMENT ROOMS.
Adjacent Rooms All rooms that are immediately adjacent to spaces containing fuel burning equipment or vents carrying the products of combustion shall also be provided with locally alarming carbon monoxide detectors.
Exception Heaters CERTIFIED, LISTED, AND LABELED for the atmosphere shall be acceptable without isolation from chemical fumes and vapors.
Alternative Alternate locations or the use of bottled water shall be evaluated by the AHJ.

# Common Use Area

# Readily Accessible
The drinking fountain shall be located where it is readily accessible and not a hazard to BATHERS per MAHC 4.10.2.

# Not Located
The drinking fountain shall not be located in a SHOWER area or toilet area.
Single Fountain A single drinking fountain shall be allowed for one or more AQUATIC VENUES within an AQUATIC FACILITY.

# Angle Jet Type
The drinking fountain shall be an angle jet type installed according to applicable plumbing CODES.

# Potable Water Supply
The drinking fountain shall be supplied with water from an approved potable water supply.

# Wastewater
The wastewater discharged from a drinking fountain shall be routed to an approved sanitary sewer system or other approved disposal area according to applicable plumbing CODES.
Garbage Receptacles

# Sufficient Number
A sufficient number of receptacles shall be provided within an AQUATIC FACILITY to ensure that garbage and refuse can be disposed of properly to maintain safe and sanitary conditions.

# Number and Location
The number and location of receptacles shall be at the discretion of the AQUATIC FACILITY manager.

# Closable
Receptacles shall be designed to be closed with a lid or other cover so they remain closed until intentionally opened.
Openings The BARRIER may have one or more openings directly into the BATHER areas.
Demarcation Line A demarcation line on the DECK that shows the separation between the DECK used by spectators and the PERIMETER DECK used by BATHERS.

# A Balcony

# A Concave Room Surfaces
The design of INDOOR AQUATIC FACILITIES with a domed roof, gable roof, or other shape that may cause sound focusing, irrespective of the ALPHA BAR, shall address sound focusing, reverberation, and echoes that would interfere with speech intelligibility.

# Recirculation and Water Treatment
Recirculation Systems and Equipment

# A General

# Equipped and Operated
All AQUATIC VENUES shall be equipped and operated with a recirculation and filtration system capable of meeting the provisions outlined in MAHC 4.7.

# Component Installation
The installation of the recirculation and the filtration system components shall be performed in accordance with the designer's and manufacturer's instructions.

# Recirculation System

# Inlets

# A General
Other Inlet Types All other types of INLET systems not covered in this section shall be subject to approval by the AHJ with proper engineering justification.
Hydraulically Sized INLETS shall be hydraulically sized to provide the design flow rates for each POOL area of multi-zone POOLS based on the required design TURNOVER RATE for each zone.

# A
Floor Inlets
Directional Flow Wall INLETS shall not require design to provide directional flow if part of a manufactured gutter system in which the filtered return water conduit is contained within the gutter structure.

# A
Dye Testing The AHJ may require dye testing to evaluate the mixing characteristics of the RECIRCULATION SYSTEM.
Failed Test If dye test reveals inadequate mixing in the POOL after 20 minutes, the RECIRCULATION SYSTEM shall be adjusted or modified to assure adequate mixing.
Perimeter Overflow Systems/Gutters
Zero Depth Entry ZERO DEPTH ENTRY POOLS shall have a continuous overflow trench that terminates as close to the side walls as practical including any zero-depth portion of the POOL perimeter.
Ends Where a POS cannot be continuous, the ends of each section shall terminate as close as practical to each other.

# A
Perimeter Overflow System Size and Shape

# Continuous Water Removal
The gutter system shall be designed to allow continuous removal of water from the POOL'S upper surface at a rate of at least 125 percent of the approved total recirculation flow rate chosen by the designer.
Inspection Gutters shall permit ready inspection, cleaning, and repair.

# A
Gutter Outlets Drop boxes, converters, return piping, or FLUMES used to convey water from the gutter shall be designed to: 1) Prevent flooding and BACKFLOW of skimmed water into the POOL, and 2) Handle at least 125 percent of the approved total recirculation flow.

# Surge Tank Capacity

# A
Net Surge Capacity All POSs shall be designed with an effective net surge capacity of not less than one gallon for each square foot (40.7 L/m 2 ) of POOL surface area.
Surge Components Surge shall be provided within a surge tank, or the gutter or filter above the normal operating level, or elsewhere in the system.
Tank Capacity The tank capacity specified shall be the net capacity.

# Tank Levels
The design professional shall define the minimum, maximum, and normal POOL operating water levels in the surge tank.
Marked The surge tank's minimum, maximum, and normal POOL operating water levels shall be marked on the tank so as to be readily visible for inspection.
Overflow Pipes Surge tanks, shall have overflow pipes to convey excess water to waste via an air gap or other approved BACKFLOW prevention device.

# A
Tolerances Gutters shall be level within a tolerance of plus or minus 1 /16 inch (1.6 mm) around the perimeter of the AQUATIC VENUE.

# A Makeup Water System

# A
Provided Where SKIMMERS are used, at least one surface SKIMMER shall be provided for each 500 square feet (46 m 2 ) of surface area or fraction thereof.
Conditions Additional SKIMMERS may be required to achieve effective skimming under site-specific conditions (e.g., heavy winds and/or CONTAMINANT loading) and/or to comply 4.0 Aquatic Facility Design & Construction 53 with all applicable building CODES.

# A
Hybrid Systems Hybrid systems that incorporate surge weirs in the overflow gutters to provide for in-POOL surge shall meet all of the requirements specified for overflow gutters (with the exception of the surge or balance tank, since the surge capacity requirement will be alternately met by the in-POOL surge capacity).

# A
Surge Weirs The number of surge weirs shall be based on the individual surge weir capacity and the operational apportionment of the design recirculation flow rate.
Locations The location of the required number of surge weirs shall be uniformly spaced in the gutter sections.

# A
Design Capacity When used, the SKIMMER SYSTEM shall be designed to handle up to 100% of the total recirculation flow rate chosen by the designer.
Pool Width Limitations POOLS using SKIMMERS shall not exceed 30 feet (9.1 m) in width.

# Skimmer Location
Effective SKIMMERS shall be so located as to provide effective skimming of the entire water surface.
Steps and Recessed Areas SKIMMERS shall be located so as not to be affected by restricted flow in areas such as near steps and within small recesses.
Wind Direction Wind direction shall be considered in number and placement of SKIMMERS.

# A Skimmer Flow Rate
The flow rate for the SKIMMERS shall comply with manufacturer data plates or NSF/ANSI 50 including Annex K.

# Control
Weir Each SKIMMER shall have a weir that adjusts automatically to variations in water level over a minimum range of 4 inches (10.2 cm).
Trimmer Valve Each SKIMMER shall be equipped with a trimmer valve capable of distributing the total flow between individual SKIMMERS.

# Tolerances

# Skimmer Base
The base of each SKIMMER shall be level with all other SKIMMERS in the POOL within a tolerance of plus or minus 14 inch (6.4 mm).

# A
Submerged Suction Outlet

# General
Submerged suction outlets, including sumps and covers, shall be CERTIFIED, LISTED, AND LABELED to the requirements of ANSI/APSP-16 2011.

# Number and Spacing
Hydraulically Balanced A minimum of two hydraulically balanced filtration system outlets are required in the bottom.
Located on the Bottom One of the outlets may be located on the bottom of a side/end wall at the deepest level.
Connected The outlets shall be connected to a single main suction pipe by branch lines piped to provide hydraulic balance between the drains.
Valved The branch lines shall not be valved so as to be capable of operating independently. Located Outlets shall be located no less than 3 feet (0.9 m) apart, measuring between the centerlines of the suction outlet covers.

# Tank Connection
Where gravity outlets are used, the main drain outlet shall be connected to a surge tank, collection tank, or balance tank/pipe.

# A Flow Distribution and Control
4.7.1.6.4.1 Design Capacity The main drain system shall be designed at a minimum to handle recirculation flow of 100% of total design recirculation flow rate.
Two Main Drain Outlets Where there are two main drain outlets, the branch pipe from each main drain outlet shall be designed to carry 100% of the recirculation flow rate.
Three or More Drains Where three or more main drain outlets are connected by branch piping in accordance with MAHC 4.7.1.6.2.1.1 through MAHC 4.7.1.6.2.1.3, the design flow through each branch pipe from each main drain outlet may be as follows: 1) Qmax for each drain= Q(total recirculation rate) / (number of drains less one), and 2) Qmax=Qtotal / (N-1).
Proportioning Valve The single main drain suction pipe to the pump shall be equipped with a proportioning valve(s) to adjust the flow distribution between the main drain piping and the surface overflow system piping.
Flow Velocities
Certified Piping and piping system component materials shall be CERTIFIED, LISTED, AND LABELED to a specific STANDARD by an ANSI-accredited certification organization.
Velocity in Pipes

# A
Suction Piping Suction piping shall be sized so that the water velocity does not exceed 6 feet per second (1.8 m/s) unless alternative values have proper engineering justification.

# A
Additional Considerations Gravity piping shall be sized with consideration of available system head or as demonstrated by detailed hydraulic calculations at the design recirculation flow rate.

# A
Drainage and Installation
Supported All piping shall be supported continuously or at sufficiently close intervals to prevent sagging and settlement.
Piping and Component Identification
Schematic Displayed A complete, easily readable schematic of the entire AQUATIC VENUE RECIRCULATION SYSTEM shall be openly displayed in the mechanical room or available to maintenance and inspection personnel.

# Testing
4.7.1.7.5.1 Static Water Pressure Test Suction and supply POOL piping shall be subjected to a static hydraulic water pressure test for the duration specified by the design engineer and/or AHJ.
Greater Suction and supply AQUATIC VENUE piping shall be able to maintain the greater of the two following amounts of pressure: 1) 25% greater than the maximum design operating pressure of the system, or 2) 25 psi (172 KPa).
Strainers and Pumps

# Strainers
Strainer / Screen All filter recirculation pumps, except those for vacuum filter installations, shall have a strainer/screen device on the suction side to protect the filtration and pumping equipment.
Materials Strainers shall be CERTIFIED, LISTED, AND LABELED to NSF/ANSI 50.

# Pumping Equipment

# A Variable Frequency Drives
VFDs may be installed to control all recirculation and feature pumps.

# A
Total Dynamic Head The recirculation pump(s) shall have adequate capacity to meet the recirculation flow design requirements in accordance with the maximum TDH required by the entire RECIRCULATION SYSTEM under the most extreme operating conditions (e.g., clogged filters in need of backwashing).
Required Flow Rate The pump shall be designed to maintain design recirculation flows under all conditions.
Vacuum Limit Switches Where vacuum filters are used, a vacuum limit switch shall be provided on the pump suction line.
Maximum The vacuum limit switch shall be set for a maximum vacuum of 18 inches (45.7 cm) of mercury.
Pump Priming All recirculation pumps shall be self-priming or flooded-suction.
Net Positive Suction Head Requirement All recirculation pumps shall meet the minimum NPSH requirement for the system.

# A
Operating Gauges Vacuum Gauge A compound vacuum-pressure gauge shall be installed on the pump suction line as close to the pump as possible.
Suction Lift A vacuum gauge shall be used for pumps with suction lift.
Installed A pressure gauge shall be installed on the pump discharge line adjacent to the pump.
Easily Read Gauges shall be installed so they can be easily read.
Valves All gauges shall be equipped with valves to allow for servicing under operating conditions.
Flow Measurement and Control

# A Flow Meters
A flow meter accurate to within +/-5% of the actual design flow shall be provided for each filtration system. 4.7.1.9.1.1 Certified, Listed, and Labeled Flow meters shall be CERTIFIED, LISTED, AND LABELED to NSF/ANSI Standard 50 by an ANSI-accredited certification organization.
Valves All pumps shall be installed with a manual adjustable discharge valve to provide a backup means of flow control as well as for system isolation.

# A Flow Rates / Turnover Times

# A Calculated
The TURNOVER TIME shall be calculated based on the total volume of water divided by the flow rate through the filtration process.

# A
Unfiltered Water Unfiltered water such as water that may be withdrawn from and returned to the AQUATIC VENUE for such AQUATIC FEATURES as SLIDES by a pump separate from the filtration system, shall not factor into TURNOVER TIME.

# A
Turnover Times TURNOVER TIMES shall be calculated based solely on the flow rate through the filtration system.

# Required
The required TURNOVER TIME shall be the lesser of the following options: 1) The specified time in MAHC Table 4.7.1.10, or 2) The time required for individual components (e.g., three SKIMMERS with flow rates set by the manufacturer and an additional 20% for the main drains could exceed the minimum value in the table).

# Total Volume
The total volume of the AQUATIC VENUE system shall include the AQUATIC VENUE and any surge/balance tank.
Supply Water Where water is drawn from the AQUATIC VENUE to supply water to AQUATIC FEATURES (e.g., SLIDES, tube rides), the water may be reused prior to filtration provided the DISINFECTANT and pH levels of the supply water are maintained at required levels.

# A Reuse Ratio
The ratio of INTERACTIVE WATER PLAY AQUATIC VENUE FEATURE water to filtered water shall be no greater than 3:1 in order to maintain the efficiency of the FILTRATION SYSTEM.

# A Flow Turndown System
For AQUATIC FACILITIES that intend to reduce the recirculation flow rate below the minimum required design values when the POOL is unoccupied, the flow turndown system shall be designed as follows in MAHC 4.7.1.10.5.1 through MAHC 4.7.1.10.5.2.

# Flowrate
The system flowrate shall not be reduced more than 25% lower than the minimum design requirements and only reduced when the AQUATIC VENUE is unoccupied.

# Clarity
The system flowrate shall be based on ensuring the minimum water clarity required under MAHC 5.7.6 is met before opening to the public.
Disinfectant Levels The turndown system shall be required to maintain required DISINFECTANT and pH levels at all times.
Increase When the turndown system is also used to intelligently increase the recirculation flow rate above the minimum requirement (e.g., in times of peak use to maintain water quality goals more effectively), the following requirements shall be met at all times: 1) Velocity requirements inside of pipes (per MAHC 4.7.1.7.2), and 2) Maximum filtration system flows.
Labeled If installed and labeled as SECONDARY DISINFECTION SYSTEMS, then they shall conform to all requirements specified under MAHC 4.7.3.3.
Conform If not labeled as SECONDARY DISINFECTION SYSTEMS, then they shall be labeled as SUPPLEMENTAL TREATMENT SYSTEMS and conform to requirements listed under MAHC 4.7.3.4.

# A
Log Inactivation and Oocyst Reduction

# A
Installation The SECONDARY DISINFECTION SYSTEM shall be located in the treatment loop (post filtration) and treat a portion (up to 100%) of the filtration flow prior to return of the water to the AQUATIC VENUE or AQUATIC FEATURE.
Manufacturer's Instructions The SECONDARY DISINFECTION SYSTEM shall be installed according to the manufacturer's directions.

# A
Minimum Flow Rate Calculation The flow rate (Q) through the SECONDARY DISINFECTION SYSTEM shall be determined based upon the total volume of the AQUATIC VENUE or AQUATIC FEATURE (V) and a prescribed dilution time (T) for theoretically reducing the number of assumed infective Cryptosporidium OOCYSTS from an initial total number of 100 million (10 8 ) OOCYSTS to a concentration of one OOCYST/100 mL.
Time for Dilution Reduction The dilution time shall be the lesser of 9 hours or 75% of the uninterrupted time an AQUATIC VENUE is closed in a 24 hour period.

# A
Flow Rate Measurements Where a SECONDARY DISINFECTION SYSTEM is installed, a means shall be installed to confirm the required flow rate to maintain a minimum required log inactivation of infective Cryptosporidium OOCYSTS at the minimum flow rate.

# A
Ultraviolet Light Systems To prevent mercury exposure, UV systems shall be installed to avoid lamp breakage according to the guidelines in EPA 815-R-06-007 Appendix E.

# A
Third Party Validation UV equipment shall be third party validated in accordance with the practices outlined in the EPA Ultraviolet Disinfectant Guidance Manual dated November, 2006, publication number EPA 815-R-06-007.

# A
Validation Standard The EPA Ultraviolet Disinfectant Guidance Manual shall be considered a recognized national STANDARD in the MAHC.
Suitable for Intended Use UV systems and all materials used therein shall be suitable for their intended use and be installed: 1) In accordance with the MAHC, 2) As CERTIFIED, LISTED, AND LABELED to a specific STANDARD by an ANSI-accredited certification organization, and 3) As specified by the manufacturer.

# Installation
The UV equipment shall be installed after the filtration and before addition of primary DISINFECTANT.
Labeled UV equipment shall be labeled with the following design specifications: maximum flow rate, minimum transmissivity, minimum intensity, and minimum dosage.
Strainer Installation An inline strainer shall be installed after the UV unit to capture broken lamp glass or sleeves.
Electrically Interlocked The equipment shall be electrically interlocked with feature pump(s) or automated feature supply valves, such that when the UV equipment fails to produce the required dosage as measured by automated sensor, the water features do not operate.

# A
Alarm/Interlock Setpoint The UV alarm/interlock setpoint shall be such that it ensures that the minimum required dose is delivered under all possible conditions of water UV transmittance and lamp output at the actual flow rate.
Operation UV systems shall not operate if the RECIRCULATION SYSTEM is not operating.
Calibrated UV Sensors The UV equipment shall be complete with calibrated UV sensors, which record the output of all the UV lamps installed in a system.
Multiple Lamps Where multiple lamps are fitted, sufficient sensors shall be provided to measure each lamp.
Fewer Sensors If the design utilizes fewer sensors than lamps, the location of lamps and sensors shall be such that the output of all lamps is adequately measured.
Automated Shut Down The automated shut down of the UV equipment for any reason shall initiate a visual alarm or other indication which will alert staff on-site or remotely.
Signage Signage instructing staff or PATRONS to notify facility management shall be posted adjacent to the visual indication.
Not Staffed If the AQUATIC FACILITY is not staffed, the sign shall include a means to contact management whenever the AQUATIC FACILITY is in use.
Reports and Documentation The UV equipment shall be supplied with the appropriate validation reports and documentation for that equipment model.
Manufacturer Log Inactivation Chart This documentation will include a graph or chart indicating the dose at which the required log inactivation is guaranteed for the system in question.
System Performance Curves System performance curves that do not include such factors are not considered validated systems.

# A
Minimum RED Validation records shall include the graph indicating the minimum intensity reading required at the operational flow for the minimum RED required to achieve the required log reduction.
Minimum Intensity Shown Where systems are validated to a specific dose, the graph shall show the minimum intensity reading required at the operational flow for that dose.
Recommended Validation Protocol Based on the recommended validation protocol presented in the EPA Disinfection Guidance Manual, UV reactors certified by ONORM and DVGW for a Bacillus subtilis RED of 40mJ/cm 2 shall be granted 3-log Cryptosporidium and 3-log Giardia inactivation credit as required in this CODE.
Ozone Disinfection

# A
Third Party Validation Ozone systems shall be validated by an ANSI-accredited third party testing and certification organization to confirm that they provide the required log inactivation of Cryptosporidium in the full SECONDARY DISINFECTION SYSTEM flow after any side-stream has remixed into the full SECONDARY DISINFECTION SYSTEM flow and prior to return of the water to the AQUATIC VENUE or AQUATIC FEATURE recirculation treatment loop.

# A
Suitable for Use Ozone systems and all materials used therein shall be suitable for their intended use and be installed: 1) In accordance with all applicable requirements, 2) As CERTIFIED, LISTED, AND LABELED to a specific STANDARD by an ANSI-accredited certification organization, and 3) As specified by the manufacturer.
Ozone System Components An ozone system shall be a complete system consisting of the following (either skid-mounted or components): 1) Ozone generator, 2) Injector / injector manifold, 3) Reaction tank (contact tank) / mixing tank / degas tower, 4) Degas valve (if applicable, to vent un-dissolved gaseous ozone), 5) Ozone destruct (to destroy un-dissolved gaseous ozone), 6) ORP MONITOR / controller, 7) Ambient ozone MONITOR / controller, 8) Air flow meter / controller, and 9) Water BACKFLOW prevention device in gas delivery system.
Appropriate Installation These components (or skid) shall be installed as specified by the manufacturer to maintain the required system validation as noted above.

# ORP Monitor
The ozone generating equipment shall be designed, sized, and controlled utilizing an ORP MONITOR / controller (independent of and in addition to any halogen ORP MONITOR/controller).
Minimum ORP Reading The minimum ORP reading shall be no less than 600 mV measured directly after  the ozone side-stream remixes into the full flow of the RECIRCULATION SYSTEM.
Maximum ORP Reading The maximum ORP reading shall be no greater than 900 mV.
Installation and Injection Point The ozone system injection point shall be located in the AQUATIC VENUE return line after the filtration and heating equipment, prior to the primary DISINFECTANT injection point.
Injection and Mixing The injection and mixing system shall not prevent the attainment of the recirculation rate required elsewhere in this CODE.

# A
Gas Monitor / Controller An ambient ozone gas MONITOR/controller located adjacent to the ozone reactor/contact tank shall be utilized to disable the ozone system in the event of an ozone gas leak.
Comply with Fire Code Ozone system installations shall comply with the NFPA 1 Fire Code or the International Fire Code and any other CODES, STANDARDS, or requirements as mandated by the AHJ.
Air Space Testing At the time the ozone generating equipment is installed, again after 24 hours of operation, and annually thereafter, the air space within 6 inches of the AQUATIC VENUE water shall be tested to determine compliance of less than 0.1 ppm (mg/L) gaseous ozone.
Results Results of the test shall be maintained on site for review by the AHJ.
Automatic Shut Down Automatic shutdown shall occur under any condition that would result in the ozone system not operating within the established parameters needed to achieve the required log inactivation of Cryptosporidium (i.e., low feed gas supply, loss of vacuum or pressure, high dew point in feed air, water in ozone gas delivery line).
Electrically Interlocked The equipment shall be electrically interlocked with AQUATIC VENUE pump(s) or automated feature supply valves, such that when the ozone equipment fails to produce the required dosage as measured by ORP, the AQUATIC VENUES do not operate.
ORP Reading Alarm or Visual Indication If the ORP reading for the ozone system drops below 600 mV (regardless of the cause) a visual alarm or other indication shall be initiated that will alert staff on-site or remotely.
Signage Signage to notify facility management shall be present adjacent to the visual alarm.
Regular Audits In order to ensure that the supplied ozone system meets all the requirements of the STANDARD, the manufacturer shall maintain a quality system audited on a regular basis to a recognized quality STANDARD.
Listed Ozone equipment shall be listed to NSF/ANSI Standard 50.
Reports and Documentation The ozone system shall be supplied with the appropriate validation reports and documentation for that equipment model.
Log Inactivation Chart Ozone validation reports shall include a graph, chart, or other documentation which clearly indicates the required operating parameters for which the required log inactivation is guaranteed for the system in question.
Inclusive This dose shall be inclusive of validation factors.

# Conspicuous and Accessible
The telephone or communication system or device shall be conspicuously provided and accessible to AQUATIC VENUE users such that it can be reached immediately.
Alternate Communication Systems Alternate systems, devices, or communication processes are allowed with approval of the AHJ in situations when a telephone is not logistically sound, and an alternate means of communication is available, which meet the requirements of MAHC 5.8.5.2.1.2.
Internal Communication The AQUATIC FACILITY design shall include a method for staff to communicate in cases of emergency.
Signage A sign shall be posted at the telephone providing dialing instructions, address and location of the AQUATIC VENUE location, and the telephone number.
Safety Equipment Required at Facilities with Lifeguards

# A Lifeguard Chair and Stand Placement
The designer shall coordinate with the owner and/or an aquatic consultant to consider the impact on BATHER surveillance zones for placement of chairs and stands designed to be permanently installed so as to provide an unobstructed view of the BATHER surveillance zones.

# A Lifeguard Chair and Stand Design
The chairs/stands shall be designed:
1) With no sharp edges or protrusions; 2) With sturdy, durable, and UV resistant materials; 3) To provide enough height to elevate the lifeguard to an eye level above the heads of the BATHERS; and 4) To provide safe access and egress for the lifeguard.

# A UV Protection for Chairs and Stands

# A
Height For the purposes of this section, height shall be measured from finished grade to the top of the BARRIER on the side outside of the BARRIER surrounding an AQUATIC VENUE.
Change in Grade Where a change in grade occurs at a BARRIER, height shall be measured from the uppermost grade to the top of the BARRIER.
Locked All gates or doors shall be capable of being locked from the exterior.

# Emergency Egress
Gates or doors shall be designed in such a way that they do not prevent egress in the event of an emergency.
Unauthorized Entry EXIT GATES or doors shall be constructed so as to prevent unauthorized entry from outside of the ENCLOSURE around the AQUATIC VENUE.

# Gates
Gates shall be at least equal in height at top and bottom to the BARRIER of which they are a component.
Piping Marked All piping shall be marked with directional arrows as necessary to determine flow direction.

# Valves Identified
All valves shall be clearly identified by number with a brass tag, plastic laminate tags, or permanently affixed alternate.
Valves Described Valves shall be described as to their function and referenced in the operating instruction manual.
Piping Diagram A water-resistant, easily read, wall-mounted piping diagram shall be furnished and installed inside the EQUIPMENT ROOM.

# A
No Openings There shall be no ducts, grilles, pass-throughs, or other openings connecting such EQUIPMENT ROOMS to CHEMICAL STORAGE SPACES, except as permitted by the fire CODE.

# A
Indoor Aquatic Facility Air Spaces containing combustion equipment, air-handling equipment, and/or electrical equipment and spaces sharing air distribution with spaces containing such equipment shall be isolated from INDOOR AQUATIC FACILITY air.
Certified, Listed, and Labeled Equipment Exception: Equipment CERTIFIED, LISTED, AND LABELED for the atmosphere shall be acceptable.

# A
No Openings There shall be no ducts, grilles, pass-throughs, or other openings connecting such spaces to an INDOOR AQUATIC FACILITY.

# A
Openings / Gaps Where building construction leaves any openings or gaps between floors and walls, or between walls and other walls, or between walls and ceilings, such gaps shall be permanently sealed against air leakage.
Indoor Aquatic Facility Access  Dike Exception: This requirement may be met by a continuous dike not less than 4 inches (10.2 cm) high located entirely within the EQUIPMENT ROOM, which will prevent spills from reaching the INDOOR AQUATIC FACILITY floor.
Floor Drains Equipment-room floor drains may be required by the AHJ.

# A
Automatic Closer Such door or doors between an EQUIPMENT ROOM and an INDOOR AQUATIC FACILITY shall be equipped with an automatic closer.
Maintained to Close Reliably The door, frame, and automatic closer shall be installed and maintained so as to ensure that the door closes completely and latches without human assistance.

# A
Automatic Lock Such door or doors between an EQUIPMENT ROOM and an INDOOR AQUATIC FACILITY shall be equipped with an automatic lock.

# A
Restrict Access Such lock shall require a key or combination to open from the INDOOR AQUATIC FACILITY side.
One Hand Such lock shall be so designed and installed as to be opened by one hand from the inside of the room under all circumstances, without the use of a key or tool.
Warning Sign Such doors shall be equipped with permanent signage warning against unauthorized entry.
Gasket All sides of such doors shall be equipped with a gasket.

# Prevent Air Passage
The gasket shall be so installed as to prevent the passage of air, fumes, or vapors when the door is closed.
Not Relief This section shall not be construed as granting relief from MAHC 4.9.1.7.2.1.
Other Equipment Room Guidance Automatic Closer Such doors shall be equipped with an automatic door closer that will completely close the door and latch without human assistance.
Air Pressure The door closer shall be able to close the door completely against the specified difference in air pressure.
Limit Switch Such doors shall be equipped with a limit switch and an alarm that will sound if the door remains open for more than 30 minutes. Where an open door will result in loss of air-pressure difference, this requirement can be met by the audible alarm required under MAHC 4.9.2.5.2.4.

# A
Interior Chemical Storage Spaces

# A
Pressure Difference This pressure difference shall be maintained by a continuously operated exhaust system used for no other purpose than to remove air from that one CHEMICAL STORAGE SPACE.
Separate Exhaust System Where more than one CHEMICAL STORAGE SPACE is present, a separate exhaust system shall be provided for each CHEMICAL STORAGE SPACE.
Airflow Rate The exhaust airflow rate shall be the greater of the: 1) OSHA requirements for working in such enclosed spaces, or 2) Amount needed to maintain the concentration of vapors or fumes below the PEL for the expected exposure time (defined by 29 CFR 1910.1000 (OSHA)) for each stored chemical, or 3) Amount specified by International Mechanical Code, or 4) Amount specified by the Uniform Mechanical Code, or 5) Amount needed to maintain the specified pressure difference.

# A
Alarm The function of this exhaust system shall be MONITORED continuously by an audible differential-pressure alarm system which shall sound if the specified differential air pressure is not maintained for a period of thirty minutes.
Minimum Output This alarm shall have a minimum output level of 85 dbA at 10 feet (3.0 m).
Manual Reset The specified alarm shall require manual reset to silence it.

# Exemptions
Applying for Exemption An AQUATIC FACILITY seeking an initial exemption or an existing AQUATIC FACILITY claiming to be exempt according to applicable regulations shall contact the AHJ for application details/forms.

# Change in Exemption Status
An AQUATIC FACILITY that sought and received an exemption from a public regulation shall contact the AHJ if the conditions upon which the exemption was granted change so as to eliminate the exemption status.

# A Variances

# Variance Authority
The AHJ may grant a variance to the requirements of this CODE.
Applying for a Variance An AQUATIC FACILITY seeking a variance shall apply in writing with the appropriate forms to the AHJ.

# Application Components
The application shall include, but not be limited to:
1) A citation of the CODE section to which the variance is requested;
2) A statement as to why the applicant is unable to comply with the CODE section to which the variance is requested; 3) The nature and duration of the variance requested; 4) A statement of how the intent of the CODE will be met and the reasons why the public health or SAFETY would not be jeopardized if the variance was granted; and 5) A full description of any policies, procedures, or equipment that the applicant proposes to use to rectify any potential increase in health or SAFETY risks created by granting the variance.
Revoked Each variance shall be revoked when the permit attached to it is revoked.
Not Transferable A variance shall not be transferable unless otherwise provided in writing at the time the variance is granted. 1) The water shall be recirculated and treated to meet the criteria of this CODE; or 2) The water shall be drained; or 3) An approved SAFETY cover that is CERTIFIED, LISTED, AND LABELED to ASTM F1346-91 by an ANSIaccredited certification organization shall be installed; or 4) Where a safety cover is not used or not practical, access to the AQUATIC VENUE shall be restricted and routine checks of the integrity of the AQUATIC VENUE ENCLOSURE shall be made.  Other Testing At the time the ozone generating equipment is installed, again after 24 hours of operation, and annually thereafter, the air space within 6 inches of the AQUATIC VENUE water shall be tested to determine compliance of less than 0.1 ppm (mg/L) gaseous ozone.

# Equipment Standards [N/

# Aquatic Venues Without a Barrier but Open to the Public
Results Results of the test shall be maintained on site for review by the AHJ.

# A
UV Systems When a UV system is utilized as a SECONDARY DISINFECTION SYSTEM, the system shall be MONITORED and data recorded at a frequency consistent with MAHC Table 5.7.3.7.8.
Hygiene Facility Design Detailed scaled and dimensional drawings for each FLOATATION TANK facility shall show the location and number of all available HYGIENE FACILITIES provided including dressing rooms, lockers, SHOWERS, lavatory, and toilet fixtures. Other Approvals The approval shall also state that it is independent of all other required approvals such as Building, Zoning, Fire, Electrical, Structural, and any other approvals as required by local or state law or CODE and the applicant must separately obtain all other required approvals and permits. 4.12.10.1.3.9.1. 3 Plan Review Coordination The AHJ shall coordinate their FLOATATION TANK plan review and communicate their approval with other agencies involved in the FLOATATION TANK facility construction. 4.12.10.1.3.9.1.4
Plan Review Report The AHJ shall provide a plan submission compliance review list to the FLOATATION TANK facility owner with the following information: 1) Categorical items marked satisfactory, unsatisfactory, not applicable, or insufficient information; 2) A comment section keyed to the compliance review list shall detail unsatisfactory and insufficient; 3) Indication of the AHJ approval or disapproval of the AQUATIC FACILITY construction plans; 4) In the case of a disapproval, specific reasons for disapproval and procedure for resubmittal; and 5) Reviewer's name, signature, and date of review. 4.12.10.1.3.9.1.5
Plans Maintained The FLOATATION TANK facility owner shall maintain at least one set of their own approved plans made available to AHJ on-site for as long as the FLOATATION TANK facility is in operation.
Alteration Scope The FLOATATION TANK facility operator shall consult with the AHJ to determine if new or modified plans must be submitted for plan review and approval for other non-SUBSTANTIAL ALTERATIONS proposed. 4.12.10.1.3.9.3 Replacements 4.12.10.1.3.9.3.1 Replacement Approval Prior to replacing equipment, the FLOATATION TANK facility owner shall submit technical verification to the AHJ that all replacement equipment is equal to that which was originally approved and installed.
Replacement Equipment Equivalency The replacement of pumps, filters, feeders, controllers, SKIMMERS, flow-meters, valves, or other similar equipment with identical or substantially similar equipment may be done without submission to the AHJ for approval of new or altered AQUATIC FACILITY plans.

# Emergency Replacement
In emergencies, the replacement may be made prior to receiving the AHJ's approval, with the owner accepting responsibility for proper immediate replacement, if the equipment is not deemed equivalent by the AHJ. Replacement Record Maintenance The AHJ shall provide the FLOATATION TANK facility owner written approval or disapproval of the proposed replacement equipment's equivalency. 4.12.10.1.3.9.3.5 Documentation Documentation of proposed, approved, and disapproved replacements shall be maintained in the AHJ's FLOATATION TANK facility files. 4.12.10.1.3.9. 4 Compliance Certificate 4.12.10.1.3.9.4.1 Construction Compliance Certificate A certificate of construction compliance shall be submitted to the AHJ for all FLOATATION TANK facility plans for new construction and SUBSTANTIAL ALTERATIONS requiring AHJ approvals.
Certificate Preparation This certificate shall be prepared by a licensed professional and be within the scope of their practice as defined by the state or local laws governing professional practice within the jurisdiction of the permit issuing official. 4.12.10.1.3.9.4. 3 Certificate Statement The certificate shall also include a statement that the FLOATATION TANK facility, all equipment, and appurtenances have been constructed and/or installed in accordance with approved plans and specifications. 4.12.10.1.3.9.4.4
Systems Commissioning If commissioning or testing reports for systems such as FLOATATION TANK facility lighting, air handling, recirculation, filtration, and/or DISINFECTION are conducted, then those reports shall be included in furnished documentation. 4.12.10.1.3.9.4.5
Maintenance Documentation of FLOATATION TANK facility new construction or SUBSTANTIAL ALTERATION plan compliance shall be maintained in the AHJ's FLOATATION TANK facility files. 4.12.10.1.3.9.5 Construction Permits 4.12.10.1.3.9.5.1 Building Permit for Construction Construction permits required in this CODE and all other applicable permits shall be obtained before any FLOATATION TANK facility may be constructed.
4.12.10.1.3.9.5. 2 Remodeling Building Permit A construction permit or other applicable permits may be required from the AHJ before SUBSTANTIAL ALTERATION of a FLOATATION TANK facility. 4.12.10.1.3.9.5. 3 Permit Issuance The AHJ shall issue a permit to the owner to operate the FLOATATION TANK facility: 1) After receiving a certificate of completion from the design professional verifying information submitted, and 2) When new construction, SUBSTANTIAL ALTERATIONS, or annual renewal requirements of this CODE have been met.
4.12.10.1.3.9.5.4 Permit Denial The permit (license) to operate may be withheld, revoked or denied by the AHJ for noncompliance of the FLOATATION TANK facility with the requirements of this CODE, and the owner will be provided: 1) Specific reasons for disapproval and procedure for resubmittal; 2) Notice of the rights to appeal this denial and procedures for requesting an appeal; and 3) Reviewer's name, signature and date of review and denial. 4.12.10.1.3.9.5.5 Documentation Documentation of FLOATATION TANK facility permit renewal or denial shall be maintained in the AHJ's FLOATATION TANK facility files.

# Materials
Construction Material FLOATATION TANKS shall be constructed of impervious and structurally sound material(s). Withstand Anticipated Loads The structure shall be capable of withstanding the anticipated stresses/loads for full and empty conditions.

# Hydrostatic Conditions
The structural design shall take into consideration hydrostatic conditions and the integration of the FLOTATION TANK with other structural conditions as required by applicable CODES.
Durability All materials shall be inert, non-toxic, resistant to corrosion, impervious, enduring, and resistant to damages related to environmental conditions of the installation region.
Watertight FLOATATION TANK shall be designed in such a way to maintain their ability to retain the designed amount of water.
Smooth Finish All walls shall have a durable finish suitable for regular scrubbing and cleaning at the waterline.

# Equipment Standards

# General
4.12.10.3.1.1 Accredited Standards Where applicable, all equipment used or proposed for use in FLOATATION TANK facilities governed under this CODE shall be: 1) Of a proven design and construction, and 2) CERTIFIED, LISTED, AND LABELED to a specific STANDARD for the specified equipment use by an ANSIaccredited certification organization.  Providing Relief Nothing in this CODE shall be construed as providing relief from any applicable requirements of the NEC or other applicable CODE.
Indoor Aquatic Facilities A FLOATATION TANK and room containing a FLOATATION TANK shall be considered a wet and CORROSIVE environment. 4.12.10.6 Water Supply/Wastewater Disposal 4.12.10.6.1 Water Supply Water serving a FLOATATION TANK facility shall be supplied from a potable water source.

# Sanitary Wastes
4.12.10.6.2.1 Discharged Wastewater from all PLUMBING FIXTURES in the entire FLOATATION TANK facility shall be discharged to a municipal sanitary sewer system, if available.
On-Site Sewer System If a municipal sanitary sewer system is not available, all wastewater shall be disposed to an on-site sewer system that is properly designed to receive the entire wastewater capacity. including filter backwash water, shall be discharged to a sanitary sewer system having sufficient capacity to collect and treat wastewater or to an on-site sewage disposal system designed for this purpose.

# Circulation System
Hydraulically Balanced The RECIRCULATION SYSTEM shall be hydraulically balanced to ensure effective distribution of treated water.
4.12.10.7.2 Filter Sizing Filtration system components shall be designed and sized to meet the applicable volumetric TURNOVER requirements specified in MAHC 5.12.10.8.
Pump Sizing Pump(s) shall be designed and sized to meet the applicable volumetric TURNOVER requirements specified in MAHC 5.12.10.8.

# Submerged Suction Fittings or Suction Outlets
Submerged suction fittings or suction outlets shall be CERTIFIED, LISTED, AND LABELED to ANSI/APSP-16 2011 by an ANSI-accredited organization.
4.12.10.8 A Disinfection 4.12.10.8.1 Disinfection Types DISINFECTION shall be provided by either:
1) Ozone treatment system; or 2) UV treatment system.

# Ozone and UV Disinfection Systems
Ozone and UV DISINFECTION systems when used as the primary DISINFECTION system, shall meet the 3-log reduction of influent bacteria DISINFECTION efficacy as tested in accordance with the criteria specified in Annex H.1 of NSF/ANSI Standard 50-2016 at the design filtration flow rate.

# Ozone Disinfection
When an Ozone DISINFECTION system is used, the criteria for ozone level and ozone production testing specified in Annex H.2 and H.3 respectively, of NSF/ANSI Standard 50-2016 must be met.
Ozone Levels Ozone levels in the FLOATATION TANK SOLUTION shall not exceed 0.1 ppm (mg/L). 4.12.10.8. 4 UV Disinfection When a UV DISINFECTION system is used as the primary DISINFECTION system, the following must be provided: 1) calibrated UV sensors shall be installed per MAHC 4.7.3.3.3.5; and 2) if the UV equipment fails to produce the required dosage as measured by the automated sensor, an alarm or other indication shall be initiated to alert staff.
4.12.10.9 A Ventilation 4.12.10.9.1 Room Air Handling System AIR HANDLING SYSTEM(S) shall be provided when necessary for the room containing FLOATATION TANK(S) and shall be designed, constructed, and installed to support the health and SAFETY of the FLOATATION TANK facility PATRONS.
4.12.10.9.2 Tank Air Quality Ventilation serving the FLOATATION TANK shall be provided when necessary to ensure acceptable air quality for human health within the FLOATATION TANK.
4.12.10.10 Floors Floors in room containing FLOATATION TANK(S) shall have a smooth, easy-to-clean, impervious-to-water, slip-resistant surface.
4.12.10.10.1 Coefficient of Friction All surfaces required to be slip-resistant shall have a minimum dynamic coefficient of friction at least equal to the requirements of ANSI A137.  for that installation as measured by the DCOF AcuTest.
Floor Drains Floor drains shall be installed in rooms containing FLOATATION TANKS and dressing areas where PLUMBING FIXTURES are located. Opening Grill Covers Floor drain opening grill covers shall be 12-inch (1.3 cm) or less in width or diameter. 5.0 Facility Maintenance & Operation 110 2) The water shall be drained, and the AQUATIC VENUE shall be staffed to keep BATHERS out; or 3) A temporary BARRIER enclosing the AQUATIC VENUE shall be installed to keep bathers out, and routine checks of the integrity of the temporary AQUATIC VENUE BARRIER shall be made; or 4) An approved SAFETY cover that is CERTIFIED, LISTED, AND LABELED to ASTM F1346-91 by an ANSIaccredited certification organization shall be installed.

# Aquatic Venues Without a Barrier and Closed to the Public
Where the AQUATIC VENUE does not have a BARRIER enclosing it per MAHC 4.8.6, and the AQUATIC FACILITY is closed to the public:
1) The water shall be recirculated and treated to meet the criteria of this CODE; or 2) The water shall be drained; or 3) An approved SAFETY cover CERTIFIED, LISTED, AND LABELED to ASTM F1346-91 by an ANSI-accredited certification organization shall be installed; 4) Where a safety cover is not used or not practical, access to the AQUATIC FACILITY shall be restricted and routine checks of the integrity of the AQUATIC FACILITY ENCLOSURE shall be made.

# A
Reopening An owner or operator of a closed AQUATIC VENUE shall verify that the AQUATIC VENUE meets all applicable criteria of this CODE before reopening the AQUATIC VENUE.

# A
Preventive Maintenance Plan

# Written Plan

# Preventive Maintenance Plan Available
A written comprehensive preventive maintenance plan for each AQUATIC VENUE shall be available at the AQUATIC FACILITY.

# Contents
The AQUATIC FACILITY preventive maintenance plan shall include details and frequency of owner/operator's planned routine facility inspection, maintenance, and replacement of recirculation and water treatment components.

# A Facility Documentation

# Original Plans and Specifications Available
A copy of the approved plans and specifications for each AQUATIC VENUE constructed after the adoption of this CODE shall be available at the AQUATIC FACILITY

# Equipment Inventory
A comprehensive inventory of all mechanical equipment associated with each AQUATIC VENUE shall be available at the AQUATIC FACILITY.

# Inventory Details
This inventory shall include:
1) Equipment name and model number, 2) Manufacturer and contact information, 3) Local vendor/supplier and technical representative, if applicable, and 4) Replacement or service dates and details.

# Equipment Manuals
Operation manuals for all mechanical equipment associated with each AQUATIC VENUE shall be available at the AQUATIC FACILITY.
No Manual If no manufacturer's operation manual is available, then the AQUATIC FACILITY should create a written document that outlines STANDARD operating procedures for maintaining and operating the piece of equipment.

# A
Pool Shell Maintenance 5.5.6.1 Cracking
Repaired CRACKS shall be part of the daily inspection process and be repaired when they change sufficiently to increase the potential for: 1) Leakage, 2) Trips or falls, 3) Lacerations, or 4) Impact the ability to properly clean and maintain the AQUATIC VENUE area.

# Document Cracks
Surface CRACKS under 1/8 inch (3.2 mm) wide shall be documented and MONITORED for any movement or change including opening, closing, and/or lengthening.

# Sharp Edges
Any sharp edges shall be removed.

# Indoor / Outdoor Environment

# Lighting

# Lighting Maintained

# A Light Levels
Lighting systems, including emergency lighting, shall be maintained in all PATRON areas and maintenance areas, to ensure the required lighting levels are met as specified in MAHC 4.6.1.

# A Main Drain Visible

# A
Underwater Lighting Underwater lights, where provided, shall be operational and maintained as designed.
Ground-Fault Circuit Interrupter Branch circuits that supply underwater lights operating at more than the Low Voltage Contact Limit as defined in NEC 680.2 shall be GFCI protected.
Unprotected Light Circuit Operation of an unprotected underwater light circuit shall be prohibited.
Cracked Lenses CRACKED lenses that are physically intact on lights shall be replaced

# Intact Lenses
The AQUATIC VENUE shall be immediately closed if CRACKED lenses are not intact and the lenses shall be replaced before re-opening.

# A Glare

# A Assessments
Reduction Windows and lighting equipment shall be adjusted, if possible, to minimize glare and excessive reflection on the water surface.

# Night Swimming
Night swimming shall be prohibited unless required light levels in accordance with MAHC 4.6.1 are provided.
Hours Night swimming shall be considered one half hour before sunset to one half hour after sunrise.
Emergency Lighting Emergency lighting shall be tested and maintained according to manufacturer's recommendations.

# A
Indoor Aquatic Facility Ventilation
Purpose AIR HANDLING SYSTEMS shall be maintained and operated by the owner/operator to protect the health and SAFETY of the facility's PATRONS.
Original Characteristics AIR HANDLING SYSTEMS shall be maintained and operated to comply with all requirements of the original system design, construction, and installation.

# Indoor Facility Areas

# System Operation
The AIR HANDLING SYSTEM shall operate continuously, including providing the required amount of outdoor air.

# Operation Outside of Operating Hours Exception:
During non-use periods, the amount of outdoor air may be reduced by no more than 50% as long as acceptable air quality is maintained.
Manuals/Commissioning Reports The QUALIFIED OPERATOR shall maintain a copy of the

# Records
The owner shall ensure documents are maintained at the INDOOR AQUATIC FACILITY to be available for inspection, recording the following: 1) A log recording the set points of operational parameters set during the commissioning of the AIR HANDLING SYSTEM and the actual readings taken at least once daily; 2) Maintenance conducted to the system including the dates of filter changes, cleaning, and repairs; 3) Dates and details of modifications to the AIR HANDLING SYSTEM; and 4) Dates and details of modifications to the operating scheme.
Indoor / Outdoor Aquatic Facility Electrical Systems and Components

# A Electrical Repairs

# Local Codes
Repairs or alterations to electrical equipment and associated equipment shall preserve compliance with the NEC, or with applicable local CODES prevailing at the time of construction, or with subsequent versions of those CODES.

# Immediately Repaired
All defects in the electrical system shall be immediately repaired.

# Wiring
Electrical wiring, whether permanent or temporary, shall comply with the NEC or with applicable local CODE.

# A Electrical Receptacles

# New Receptacles
The installation of new electrical receptacles shall be subject to electrical-construction requirements of this CODE and applicable local CODE.

# Repairs
Repairs or maintenance to existing receptacles shall maintain compliance with the NEC and with 29 CFR 1910.304(b) (3) (ii).

# Replacement
Replacement receptacles shall be of the same type as the previous ones (e.g., grounding-type receptacles shall be replaced only by grounding-type receptacles), with all grounding conductors connected and proper wiring polarity preserved.

# Substitutions
Where the original-type of receptacle is no longer available, a replacement and installation shall be in accordance with applicable local CODE.

# A Ground-Fault Circuit Interrupter

# Manufacturer's Recommendations
Where receptacles are required to be protected by GFCI devices, the GFCI devices shall be tested following the manufacturer's recommendations.

# A Grounding

# Maintenance and Repair
Maintenance or repair of electrical circuits or devices shall preserve grounding compliance with the NEC or with applicable local CODES.

# Grounding Conductors
Grounding conductors that have been disconnected shall be reinspected as required by the local building CODE authority prior to AQUATIC VENUE being used by BATHERS.

# Damaged Conductors
Damaged grounding conductors and grounding electrodes shall be repaired immediately.

# Damaged Conductor Repair

# Public Access
The public shall not have access to the AQUATIC VENUE until such grounding conductors or grounding electrodes are repaired.

# Venue Closure
The AQUATIC VENUE with damaged grounding conductors or grounding electrodes, that are associated with recirculation or DISINFECTION equipment or with underwater lighting systems, shall be closed until repairs are completed and inspected by the AHJ.

# Clear Water
Backwashing should be continued until the water leaving the filter is clear.

# A
Backwashing Frequency Backwashing of each filter shall be performed at a differential pressure increase over the initial clean filter pressure, as recommended by the filter manufacturer, unless the system can no longer achieve the design flow rate.

# A
Backwash Scheduling Backwashes shall be scheduled to take place when the AQUATIC VENUE is closed for BATHER use.
Backwashing Without Bathers Present BATHERS shall not be permitted to reenter the AQUATIC VENUE until the RESPONSIBLE SUPERVISOR or QUALIFIED OPERATOR ensures that the recirculation pump and chemical feeders have restarted and run for a minimum of 5 minutes following completion of backwashing.
Backwashing With Bathers Present A filter may be backwashed while BATHERS are in the AQUATIC VENUE if all of the following criteria are met: 1) Multiple filters are used, and 2) The filter to be backwashed can be isolated from the remaining RECIRCULATION SYSTEM and filters, and 3) The recirculation and filtration system still continues to run as per this CODE, and 4) The chemical feed lines inject at a point where chemicals enter the RECIRCULATION SYSTEM after the isolated filter and where they can mix as needed.

# Filter Media Inspections
Sand or other granular media shall be inspected for proper depth and cleanliness at least one time per year, replacing the media when necessary to restore depth or cleanliness.

# Vacuum Sand Filters
The manual air release valve of the filter shall be opened as necessary to remove any air that collects inside of the filter as well as following each backwash.

# A Filtration Enhancing Products
Products used to enhance filter performance shall be used according to manufacturers' recommendations.

# Precoat Filters

# Appropriate
The appropriate media type and quantity as recommended by the filter manufacturer shall be used.

# A
Return to the Pool Precoating of the filters shall be required in closed loop (precoat) mode to minimize the potential for media or debris to be returned to the POOL unless filters are CERTIFIED, LISTED, AND LABELED to NSF/ANSI 50 by an ANSI-accredited certification organization to return water to the POOL during the precoat process.

# A Operation
Filter operation shall be per manufacturer's instructions.
Uninterrupted Flow Flow through the filter shall not be interrupted when switching from precoat mode to filtration mode unless the filters are CERTIFIED, LISTED, AND LABELED to NSF/ANSI 50 by an ANSI-accredited certification organization to return water to the POOL during the precoat process.
Flow Interruption When a flow interruption occurs on precoat filters not designed to bump, the media shall be backwashed out of the filter and a new precoat established according to the manufacturer's recommendations.
Maximum Precoat Media Load Systems designed to flow to waste while precoating shall use the maximum recommended precoat media load permitted by the filter manufacturer to account for media lost to the waste stream during precoating.

# A
Cleaning Backwashing or cleaning of filters shall be performed at a differential pressure increase over the initial clean filter pressure as recommended by the filter manufacturer unless the system can no longer achieve the design flow rate.

# Continuous Feed Equipment
Continuous filter media feed equipment tank agitators shall run continuously.

# Batch Application
Filter media feed may also be performed via batch application.

# A Bumping
Bumping a precoat filter shall be performed in accordance with the manufacturer's recommendations.

# A Filter Media

# A
Diatomaceous Earth Diatomaceous earth (DE), when used, shall be added to precoat filters in the amount recommended by the filter manufacturer and in accordance with the specifications for the filter listing and labeling to NSF/ANSI 50 by an ANSI-accredited certification organization.
Perlite Perlite, when used, shall be added to precoat filters in the amount recommended by the filter manufacturer and in accordance with the specifications for the filter listing and labeling to NSF/ANSI 50 by an ANSI-accredited certification organization.
Cartridge Filters

# A
Approved Cartridge filters shall be operated in accordance with the filter manufacturer's recommendation and be CERTIFIED, LISTED, AND LABELED to NSF/ANSI 50 by an ANSI-accredited certification organization.

# A Filtration Rates
The maximum operating filtration rate for any surface-type cartridge filter shall not: 1) Exceed the lesser of either the manufacturer's recommended filtration rate or 0.375 GPM per square foot (0.26 L/s/m 2 ) or 2) Drop below the design flow rate required to achieve the TURNOVER RATE for the AQUATIC VENUE.

# A
Filter Elements Active filter cartridges shall be exchanged with clean filter cartridges at a differential pressure increase over the initial clean filter pressure as recommended by the filter manufacturer unless the system can no longer achieve the design flow rate.

# A
Cleaning Procedure The filter housing and filter cartridge shall be cleaned per manufacturer's recommendation.
Filter Housing Cleaning The following procedures shall be implemented to clean the filter housing when no manufacturer instructions are established: 1) Drain filter housing to waste; 2) Remove the filter cartridges from the housing; 3) Clean the inside of the filter housing with a brush and mild detergent to remove biofilms and algae; 4) Rinse thoroughly; and 5) Mist the filter housing walls with CHLORINE bleach at a 1:10 dilution.
Filter Cartridge Cleaning The following procedures shall be implemented to clean the filter cartridge when no manufacturer instructions are established.
Rinse Thoroughly The cartridge shall be rinsed thoroughly with a spray nozzle.

# A
Pressure Washer A pressure washer shall not be used to clean cartridge filters.
Degrease Cartridge filters shall be degreased each time they are cleaned per the procedures outlined in this section.
Soak The cartridge shall be soaked overnight in one of the following solutions: 1) A cartridge filter cleaner/degreaser per instructions on product label, or 2) A solution of water with 1 cup (240 ml) of tri-sodium phosphate (TSP) per 5 gallons (18.9 L) of water, or 3) One cup (240 mL) of automatic dishwashing detergent per 5 gallons (18.9 L) of water.
Acid Muriatic acid or products with acid in them shall never be used prior to degreasing.
Rinse The filter cartridge shall be removed from the degreaser solution and rinsed thoroughly.
Sanitize The filter cartridge shall be SANITIZED by soaking for 1 hour in a bleach solution made by mixing 1 quart (950 ml) of household bleach per 5 gallons (18.9 L) of water.
Rinse After soaking for 1 hour, the SANITIZED filter cartridge shall be removed and rinsed thoroughly.
Spare Cartridge One full set of spare cartridges shall be maintained on site in a clean and dry condition.

# Water Treatment Chemicals and Systems
Disinfectants Bromine-based DISINFECTANTS may be applied to AQUATIC VENUES and SPAS through the addition of an organic bromine compound (1,3-Dibromo-5,5dimethylhydantoin (DBDMH) or 1-bromo-3-chloro-5,5-dimethylhydantoin (BCDMH)).

# A
Minimum Bromine Concentrations Minimum bromine concentrations shall be maintained at all times in all areas as follows: 1) All AQUATIC VENUES: 3.0 ppm (mg/L), and 2) SPAS: 4.00 ppm (mg/L).

# A
Maximum Bromine Concentrations The maximum bromine concentration shall not exceed 8.0 ppm (mg/L) at any time the AQUATIC VENUE is open to BATHERS.

# Stabilizers
Replacement Times These AQUATIC VENUES shall no longer use CYA or stabilized CHLORINE products no later than 4 years after adoption of this CODE.

# Aquatic Venues
The CYA level at all AQUATIC VENUES shall remain at or below 90 ppm (mg/L). Fan An electric motor-driven fan shall take suction from near the floor level of the ENCLOSURE and discharge at a suitable point to the exterior above the ground level.

# A Compressed Chlorine Gas
Fan Switch The fan switch shall be able to be operated from outside of the ENCLOSURE.
Trained Operator Any person who operates such chlorinating equipment shall be trained in its use.
Stop Use Facilities shall stop the use of CHLORINE gas if specific SAFETY equipment and training requirements, along with local CODE considerations, cannot be met.

# A Salt Electrolytic Chlorine Generators, Brine Electrolytic Chlorine or Bromine Generators
Pool Grade Salt Only POOL grade salt that has been CERTIFIED, LISTED, AND LABELED to either NSF/ANSI Standard 50 or NSF/ANSI Standard 60 by an ANSI-accredited certification organization, and/or have an EPA FIFRA registration shall be used.
Maintained The saline content of the POOL water shall be maintained in the required range specified by the manufacturer.
Cleaning Cleaning of electrolytic plates shall be performed as recommended by the manufacturer.
Corrosion Protection Corrosion protection systems shall be maintained in the POOL basin.

# A
Secondary or Supplemental Treatment Systems

# A
Log Inactivation Secondary UV systems shall be operated and maintained not to exceed the maximum validated flow rate and meet or exceed the minimum validated output intensity needed to achieve the required dose.
Free Available Chlorine and Bromine Levels Use of UV does not modify any other water quality requirements.

# A
Calibrated Sensors UV sensors shall be calibrated at a frequency in accordance with manufacturer recommendations.
Records Records of calibration shall be maintained by the facility.

# Ozone
Log Inactivation Ozone systems shall be operated and maintained according to the manufacturer's instructions to maintain the required design performance.
Residual Ozone Concentration Residual ozone concentration in the AQUATIC VENUE water shall remain below 0.1 ppm (mg/L).
Free Available Chlorine and Bromine Levels Use of ozone does not modify any other water quality requirements.
Standard Operating Manual A printed STANDARD operating manual shall be provided containing information on the operation and maintenance of the ozone generating equipment, including the responsibilities of workers in an emergency.
Bather Re-entry BATHERS shall not be permitted to reenter the AQUATIC VENUE until the RESPONSIBLE SUPERVISOR or QUALIFIED OPERATOR has successfully understood the cause of the interlock activation and/or recirculation pump interruption and has manually overridden the interlock for restart of the recirculation pump and chemical feeder, and UV or ozone system, if applicable, for 5 minutes following the restart of these systems.
Fail Proof Safety Features Chemical feed system components shall incorporate failure-proof features so the chemicals cannot feed directly into the AQUATIC VENUE, the VENUE piping system not associated with the RECIRCULATION SYSTEM, source water supply system, or area within proximity of the AQUATIC VENUE DECK under any type of failure, low flow, or interruption of operation of the equipment to prevent BATHER exposure to high concentrations of AQUATIC VENUE treatment chemicals.
Maintained All chemical feed equipment shall be maintained in good working condition.
Challenge Testing The system and its components shall be tested on a regular basis to confirm that all safety features are functioning correctly.
Once Monthly or Specified by Manufacturer Unless specified otherwise by the device manufacturer, once monthly challenge testing of the chemical feeder interlock system shall be conducted by turning off recirculation pump flow to the chemical feeder and ensuring triggered shutoff of chemical feeder occurs via electrical interlock with flow meter/flow switch, paddle wheel, or other device being used to assess flow to chemical feeder.
Following Confirmation Following confirmation of triggered shutoff, recirculation flow shall immediately be restarted.
Insufficient Size/Capacity If it is determined that the chemical feed system is incapable of maintaining the minimum required DISINFECTANT level at all times in accordance with the MAHC, additional capacity shall be designed and installed per MAHC 4.7.3.2.2.
Chemical Feeders Chemical feeders shall be installed such that they are not over CHEMICAL STORAGE containers, other feeders, or electrical equipment.

# Dry Chemical Feeders
Chemicals shall be kept dry to avoid clumping and potential feeder plugging for mechanical gate or rotating screw feeders.

# Cleaned and Lubricated
The feeder mechanism shall be cleaned and lubricated to maintain a reliable feed system.
Venturi Inlet Adequate pressure shall be maintained at the venturi INLET to create the vacuum needed to draw the chemical into the RECIRCULATION SYSTEM.

# Erosion Feeders
Erosion feeders shall only have chemicals added that are approved by the manufacturer.
Opened A feeder shall only be opened after the internal pressure is relieved by a bleed valve.
Maintained Erosion feeders shall be maintained according the manufacturer's instructions.

# First Aid Equipment

# A Location for First Aid
The AQUATIC FACILITY shall have designated locations for emergency and first aid equipment.

# A
First Aid Supplies An adequate supply of first aid supplies shall be continuously stocked and include, at a minimum, as follows: 1) A First Aid Guide,

# Signage

# 5.8.5.2.3.1A
Sign Indicating First Aid Location Signage shall be provided at the AQUATIC FACILITY or each AQUATIC VENUE, as necessary, which clearly identifies the following: 1) First aid location(s), and 2) Emergency telephone(s) or approved communication system or device.

# A
Emergency Dialing Instructions A permanent sign providing emergency dialing directions and the AQUATIC FACILITY address shall be posted and maintained at the emergency telephone, system, or device.

# A
Management Contact Info A permanent sign shall be conspicuously posted and maintained displaying contact information for emergency personnel and AQUATIC FACILITY management.

# A
Hours of Operation A sign shall be posted stating the following: 1) The operating hours of the AQUATIC FACILITY, and 2) Unauthorized use of the AQUATIC FACILITY outside of these hours is prohibited.
Safety Equipment Required at Facilities with Lifeguards

# A UV Protection for Chairs and Stands
Lifeguards and lifeguard positions must be provided protection from UV radiation exposure.

# A Backboard
At least one backboard constructed of material easily SANITIZED/DISINFECTED shall be provided.

# Backboard Number and Location
The number and location of backboards shall be sufficient to effect a 2-minute response time to the location of the incident.
Backboard Components The backboard shall be equipped with a head immobilizer and sufficient straps to immobilize a person to the backboard.

# A Rescue Tube Immediately Available Each QUALIFIED LIFEGUARD conducting
PATRON surveillance with the responsibility of in-water rescue in less than 3 feet (0.9 m) of water shall have a rescue tube immediately available for use.

# A Rescue Tube on Person
Each QUALIFIED LIFEGUARD conducting PATRON surveillance in a water depth of 3 feet (0.9 m) or greater shall have a rescue tube on his/her person in a rescue ready position.

# A
Identifying Uniform QUALIFIED LIFEGUARDS shall wear attire that readily identifies them as members of the AQUATIC FACILITY'S lifeguard staff.

# A
Signal Device A whistle or other signaling device shall be worn by each QUALIFIED LIFEGUARD conducting PATRON surveillance for communicating to users and/or staff.

# A Sun Blocking Methods
Lifeguards Responsible QUALIFIED LIFEGUARDS are responsible for protecting themselves from UV radiation exposure and wearing appropriate sunglasses and sunscreen.

# A
Polarized Sunglasses When glare impacts the ability to see below the water's surface, QUALIFIED LIFEGUARDS shall wear polarized sunglasses while conducting BATHER surveillance.

# A
Personal Protective Equipment Personal protective devices including a resuscitation mask with one-way valve and non-latex, non-powdered, one-use disposable gloves shall be worn in the form of a hip pack or attached to the rescue tube of all QUALIFIED LIFEGUARDS on-duty.

# A
Rescue Throwing Device AQUATIC FACILITIES with one QUALIFIED LIFEGUARD shall provide and maintain a U.S. Coast Guard-approved aquatic rescue throwing device as per the specifications of MAHC 5.8.5.4.1.

# A
Reaching Pole AQUATIC FACILITIES with one QUALIFIED LIFEGUARD shall provide and maintain a reaching pole as per the specifications of MAHC 5.8.5.4.2.

# Safety Equipment and Signage Required at Facilities without Lifeguards

# A
Throwing Device AQUATIC VENUES whose depth exceeds 2 feet (61.0 cm) of standing water shall provide and maintain a U.S. Coast Guard-approved aquatic rescue throwing device, with at least a quarter-inch (6.3 mm) thick rope whose length is 50 feet (15.2 m) or 1.5 times the width of the POOL, whichever is less.

# Throwing Device Location
The rescue throwing device shall be located in the immediate vicinity to the AQUATIC VENUE and be accessible to BATHERS.

# A
Reaching Pole AQUATIC VENUES whose depth exceeds 2 feet (61 cm) of standing water shall provide and maintain a reaching pole of 12 foot (3.7 m) to 16 foot (4.9 m) in length, non-telescopic, light in weight, and with a securely attached Shepherd's Crook with an aperture of at least 18 inches (45.7 cm).

# Reaching Pole Location
The reaching pole shall be located in the immediate vicinity to the AQUATIC VENUE and be accessible to BATHERS and PATRONS.
Non-Conductive Material Reaching poles provided by the AQUATIC FACILITY after the adoption date of this CODE shall be of non-conductive material.

# A
CPR Posters CPR posters that are up to date with latest CPR programs and protocols shall be posted conspicuously at all times.

# A Imminent Health Hazard Sign
A sign shall be posted outlining the IMMINENT HEALTH HAZARDS, which require AQUATIC VENUE or AQUATIC FACILITY closure as defined in this CODE per MAHC 6.6.3.1 and a telephone number to report problems to the owner/operator.

# A Additional Signage
For any AQUATIC VENUE with standing water, a sign shall be posted signifying a QUALIFIED LIFEGUARD is not on duty and that the following rules apply: 1) Persons under the age of 14 cannot be in the AQUATIC VENUE without direct adult supervision meaning children shall be in adult view at all times, and 2) Youth and childcare groups, training, lifeguard courses, and swim lessons are not allowed without a QUALIFIED LIFEGUARD providing PATRON surveillance.

# Barriers and Enclosures

# General Requirements
Construction Requirements (N/A)

# Gates and Doors

# Self-Closing and Latching

# Exception
Gates or doors used solely for after-hours maintenance shall remain locked at all times when not in use by staff.
Propping Open Required self-closing and self-latching gates or doors serving as part of a guarded ENCLOSURE may be maintained in the open position when the AQUATIC VENUE is open and staffed as required.
5.9 A Filter/Equipment Room 5.9.1 Chemical Storage

# A
Local Codes CHEMICAL STORAGE shall be in compliance with local building and fire CODES.

# A
OSHA and EPA Chemical handling shall be in compliance with OSHA and EPA regulations.

# A Safety Data Sheets
For each chemical, STORAGE, handling, and use of the chemical shall be in compliance with the manufacturer's SDS and labels.
Access Prevention AQUATIC VENUE chemicals shall be stored to prevent access by unauthorized individuals.

# A
Protected AQUATIC VENUE chemicals shall be stored so that they are protected from getting wet.

# A
No Mixing AQUATIC VENUE chemicals shall be stored so that if the packages were to leak, no mixing of incompatible materials would occur.
Safety Data Sheets Consulted SDS shall be consulted for incompatibilities.

# A Ignition Sources
Possible ignition sources, including but not limited to gasoline, diesel, natural gas, or gas-powered equipment such as lawn mowers, motors, grills, POOL heaters, or portable stoves shall not be stored or installed in the CHEMICAL STORAGE SPACE.

# Smoking
Smoking shall be prohibited in the CHEMICAL STORAGE SPACE.

# A Lighting
Lighting shall be at minimum 30 footcandles (323 lux) to allow operators to read labels on containers throughout the CHEMICAL STORAGE SPACE and pump room.

# A Personal
Protective Equipment PPE shall be available as indicated on the chemical SDSs.
Storage Chemicals shall be stored away from direct sunlight, temperature extremes, and high humidity.
Single Container A single container of a particular chemical that has been opened and that is currently in use in the pump room may be kept in a staging area of the pump room only if the chemical(s) will be protected from exposure to heat and moisture.

# Separate
The CHEMICAL STORAGE SPACE shall be separate from the EQUIPMENT ROOM.

# Waiver

# Chemical Handling

# Identity
Containers of chemicals shall be labeled, tagged, or marked with the identity of the material and a statement of the hazardous effects of the chemical according to OSHA and/or EPA materials labeling requirements.

# Labeling
All AQUATIC VENUE chemical containers shall be labeled according to OSHA and/or EPA materials labeling requirements.

# NSF Standard
The chemical equipment used in controlling the quality of water shall be CERTIFIED, LISTED, AND LABELED to NSF/ANSI 50 by an ANSI-accredited certification organization and used only in accordance with the manufacturer's instructions.
Measuring Devices Chemicals shall be measured using a dedicated measuring device where applicable.

# Clean and Dry
These measuring devices shall be clean, dry, and constructed of material compatible with the chemical to be measured to prevent the introduction of incompatible chemicals.

# Chemical Addition Methods
Automatically Introduced DISINFECTION and pH control chemicals shall be automatically introduced through the RECIRCULATION SYSTEM.
Manual Addition SUPERCHLORINATION or shock chemicals and other POOL chemicals other than DISINFECTION and pH control may be added manually to the POOL.
Absence of Bathers Chemicals added manually directly into the AQUATIC VENUE shall only be introduced in the absence of BATHERS.
Safety Requirements Treatment chemicals shall be added in strict adherence to the manufacturer's use instructions to ensure levels in the water are safe for human exposure. Refer to MAHC 5.7.3.
Diluted Whenever required by the manufacturer, chemicals shall be diluted (or mixed with water) prior to application and as per the manufacturer's directions.
Added Chemicals shall be added to water when diluting as opposed to adding water to a concentrated chemical.
Mixed Each chemical shall be mixed in a separate, labeled container.
Never Mixed Together Two or more chemicals shall never be mixed in the same dilution water.

# Hygiene Facilities

# Hand Wash Station HAND WASH STATIONS shall include the following items:
1) Hand wash sink, 2) Adjacent soap with dispenser, 3) Hand drying device or paper towels and dispenser, and 4) Trash receptacle.

# Cleansing Showers
Cleaned and Sanitized CLEANSING SHOWERS shall be cleaned and SANITIZED daily and more often if necessary with an EPA-REGISTERED product and more often if necessary to provide a clean and sanitary environment.

# A Rinse Showers
Cleaned RINSE SHOWERS shall be cleaned daily and more often if necessary with an EPA-REGISTERED product and more often if necessary to provide a clean and sanitary environment.
Easy Access RINSE SHOWERS shall be easily accessible.

# Not Blocked
Equipment and furniture on the DECK shall not block access to RINSE SHOWERS.
No Soap Soap dispensers and soap shall be prohibited at RINSE SHOWERS.

# All Showers [N/

# Hand Wash Sink Installed and Operational
The adjacent hand wash sink shall be installed and operational within 1 year from the date of the AHJ's adoption of the MAHC.
Cleaned DIAPER-CHANGING STATIONS shall be cleaned and DISINFECTED daily and more often if necessary to provide a clean and sanitary environment.

# Maintained
They shall be maintained in good condition and free of visible contamination.
Disinfectant EPA-REGISTERED DISINFECTANT shall be provided in the form of either of the following: 1) A solution in a spray dispenser with paper towels and dispenser, or 2) Wipes contained within a dispenser.
Covers If disposable DIAPER-CHANGING UNIT covers are provided in addition to DISINFECTANT, they shall cover the DIAPER-CHANGING UNIT surface during use and keep the unit in clean condition.
Portable Hand Wash Station If a portable HAND WASH STATION is provided for use it shall be operational and maintained in good condition at all times.

# A Non-Plumbing Fixture Requirements

# Paper Towels
If paper towels are used for hand drying, a dispenser and paper towels shall be provided for use at HAND WASH STATIONS.

# Soap Soap dispensers shall be provided at HAND WASH STATIONS and CLEANSING
SHOWERS and shall be kept full of liquid or granular soap.
Bar Soap Bar soap shall be prohibited.
Wading Pools  5.12.10 A Floatation Tanks Only the Operation and Maintenance provisions contained in MAHC sections 5.12.10.1 through 5.12.10.15 apply to FLOATATION TANKS unless otherwise noted.
Permit Details The permit to operate shall: 1) Be issued in the name of the owner, 2) List all FLOATATION TANKS included under the permit, and 3) Specify the period of time approved by the AHJ. 5.12.10.1.1.5
Permit Expiration Permits to operate shall terminate according to the AHJ schedule.

# Permit Renewal
The FLOATATION TANK facility owner shall renew the permit to operate prior to the scheduled expiration of an existing permit to operate an FLOATATION TANK facility.
Permit Denial The permit to operate may be withheld, revoked, or denied by the AHJ for noncompliance of the FLOATATION TANK facility with the requirements of this CODE.
Owner Responsibilities The owner of an FLOATATION TANK facility is responsible for the facility being operated, maintained, and managed in accordance with the requirements of this CODE.
Operating Permits 5.12.10.1.2.1 Permit Location The permit to operate shall be posted at the FLOATATION TANK facility in a location conspicuous to the public.
Operating Without a Permit Operation of an FLOATATION TANK facility or newly constructed or substantially altered FLOATATION TANK without a permit to operate shall be prohibited.
Required Closure The AHJ may order a newly constructed or substantially altered FLOATATION TANK without a permit to operate to close until the FLOATATION TANK facility has obtained a permit to operate.

# Inspections

# Preoperational Inspections

# Terms of Operation
The FLOATATION TANK facility may not be placed in operation until an inspection approved by the AHJ shows compliance with the requirements of this CODE or the AHJ approves opening for operation.

# Exemptions
Applying for Exemption An FLOATATION TANK facility seeking an initial exemption or an existing FLOATATION TANK facility claiming to be exempt according to applicable regulations shall contact the AHJ for application details/forms.
Change in Exemption Status An FLOATATION TANK facility that sought and received an exemption from a public regulation shall contact the AHJ if the conditions upon which the exemption was granted change so as to eliminate the exemption status.

# Variances

# Variance Authority
The AHJ may grant a variance to the requirements of this CODE.
Applying for a Variance A FLOATATION TANK facility seeking a variance shall apply in writing with the appropriate forms to the AHJ.
Application Components The application shall include, but not be limited to: 1) A citation of the CODE section to which the variance is requested; 2) A statement as to why the applicant is unable to comply with the CODE section to which the variance is requested; 3) The nature and duration of the variance requested; 2018 MAHC CODE 5.0 Facility Maintenance & Operation 140 4) A statement of how the intent of the CODE will be met and the reasons why the public health or SAFETY would not be jeopardized if the variance was granted; and 5) A full description of any policies, procedures, or equipment that the applicant proposes to use to rectify any potential increase in health or SAFETY risks created by granting the variance.
Revoked Each variance shall be revoked when the permit attached to it is revoked.
Not Transferable A variance shall not be transferable unless otherwise provided in writing at the time the variance is granted.
Replacement Replacement receptacles shall be of the same type as the previous ones (e.g., grounding-type receptacles shall be replaced only by grounding-type receptacles), with all grounding conductors connected and proper wiring polarity preserved.
Substitutions Where the original-type of receptacle is no longer available, a replacement and installation shall be in accordance with applicable local CODE.
Ground-Fault Circuit Interrupter 5.12.10.5.3.1 Manufacturer's Recommendations Where receptacles are required to be protected by GFCI devices, the GFCI devices shall be tested following the manufacturer's recommendations.
Testing Required GFCI devices shall be tested as part of scheduled maintenance on the first day of operation, and monthly thereafter, until the BODY OF WATER is drained and the equipment is prepared for STORAGE.

# Grounding
5.12.10.5.4.1 Maintenance and Repair Maintenance or repair of electrical circuits or devices shall preserve grounding compliance with the NEC or with applicable local CODES.
Grounding Conductors Grounding conductors that have been disconnected shall be re-inspected as required by the local building CODE authority prior to AQUATIC VENUE being used by BATHERS.
Damaged Conductors Damaged grounding conductors and grounding electrodes shall be repaired immediately.
Damaged Conductor Repair Damaged grounding conductors or grounding electrodes associated with recirculation or DISINFECTION equipment or with underwater lighting systems shall be repaired by a qualified person who has the proper and/or necessary skills, training, or credentials to carry out this task.
Public Access The public shall not have access to the FLOATATION TANK until such grounding conductors or grounding electrodes are repaired.
Venue Closure The FLOATATION TANK with damaged grounding conductors or grounding electrodes, that are associated with recirculation or DISINFECTION equipment or with underwater lighting systems, shall be closed until repairs are completed and inspected by the AHJ. 5.12.10.5.5 Bonding 5.12.10.5.5.1 Local Codes Maintenance or repair of all metallic equipment, electrical circuits or devices, or reinforced concrete structures shall preserve bonding compliance with the NEC, or with applicable local CODES.
Bonding Conductors Bonding conductors shall not be disconnected except where they will be immediately reconnected.
Disconnected Conductors The FLOATATION TANK shall not be used by BATHERS while bonding conductors are disconnected. 5.12.10.5.5.4
Removable Covers Removable covers protecting bonding conductors (e.g., at ladders), shall be kept in place except during bonding conductor inspections, repair, or replacement.
2018 MAHC CODE 5.0 Facility Maintenance & Operation 142 5.12.10.5.5.5
Scheduled Maintenance Bonding conductors, where accessible, shall be inspected semi-annually as part of scheduled maintenance.
Corrosion Bonding conductors and any associated clamps shall not be extensively corroded.
Continuity Continuity of the bonding system associated with RECIRCULATION SYSTEM or DISINFECTION equipment or with underwater lighting systems shall be inspected by the AHJ following installation and any major construction around the AQUATIC FACILITY.

# Extension Cords
5.12.10.5.6.1 Temporary Cords and Connectors Temporary extension cords and power connectors shall not be used as a substitute for permanent wiring.
Minimum Distance from Water All parts of an extension cord shall be restrained at a minimum of 6 feet (1.8 m) away when measured along the shortest possible path from a BODY OF WATER during times when the FLOATATION TANK facility is open. 5.12.10.5.6. 3 Exception An extension cord may be used within 6 feet (1.8 m) of the nearest edge of a BODY OF WATER if a permanent wall exists between the BODY OF WATER and the extension cord. 5.12.10.5.6.4 GFCI Protection The circuit supplying an extension cord shall be protected by a GFCI device when the extension cord is to be used within 6 feet (1.8 m) of a BODY OF WATER.
Local Code An extension cord incorporating a GFCI device may be used if that is acceptable under applicable local CODE. 5.12.10.9 Disinfection 5.12.10.9.1 3-log Inactivation Ozone and UV systems shall be operated and maintained to achieve the required design performance for a 3-log inactivation as specified in MAHC 4.12.10.8.2.

# Operation
Ozone and UV systems shall be operated and maintained in accordance with manufacturer's instructions.

# Ozone Concentration
Ozone DISINFECTION systems shall be operated and maintained so as to meet the ozone concentration output and not exceed the limits of off-gassed ozone in accordance with MAHC 4.12.10.8.3

# UV calibrated sensors
1) When UV is used, the UV sensors shall be calibrated at a frequency in accordance with manufacturer recommendations. 2) Records of calibration shall be maintained by the facility and available for review by the AHJ. Info to Include Illness and injury incident report information shall include 1) Date, 2) Time, 3) Location, 4) Incident including type of illness or injury and cause or mechanism, 5) Names and addresses of the individuals involved, 6) Actions taken, 7) Equipment used, and 8) Outcome of the incident.
Notify the AHJ In addition to making such records, the owner/operator shall ensure that the AHJ is notified within 24 hours of the occurrence of an incident recorded in MAHC 5.12.11.14.4.
Bodily Fluids Remediation Log

# A Training Topics
The training shall include at a minimum:
1) How to recognize and avoid chemical hazards;
2) The physical and health hazards of chemicals used at the facility;
3) How to detect the presence or release of a hazardous chemical; 4) Required PPE necessary to avoid the hazards; 5) Use of PPE; 6) Chemical spill response; and 7) How to read and understand the chemical labels or other forms of warning including SDS sheets.

# Training Records
Records of all training shall be recorded and maintained on file.
Secondary Disinfection SECONDARY DISINFECTION SYSTEMS including: 1) How ozone and UV DISINFECTANTS are used in conjunction with residual DISINFECTANTS to inactivate pathogens, and 2) Sizing guidelines/dosing calculations, safe use, and advantages and disadvantages of each method.
Supplemental Treatment SUPPLEMENTAL TREATMENT including other DISINFECTION chemicals or systems on the market and their effectiveness in water treatment.
Water Chemistry Course work for water chemistry shall include:
Source Water Source water including requirements for supply and pre-treatment.
Water Balance Water balance including: 1) Effect of unbalanced water on DISINFECTION, AQUATIC FEATURE surfaces, mechanical equipment, and fixtures; and 2) Details of water balance including pH, total alkalinity, calcium hardness, temperature, and TDS.
Saturation Index SATURATION INDEX including calculations, ideal values, and effects of values which are too low or too high.
Water Clarity Water clarity including: 1) Reasons why water quality is so important; 2) Causes of poor water clarity; 3) Maintenance of good water clarity; and 4) Closure requirements when water clarity is poor.
pH pH including: 1) How pH is a measure of the concentration of hydrogen ions in water; 2) Effects of high and low pH on BATHERS and equipment; 3) Ideal pH range for BATHER and equipment; 4) Factors that affect pH; 5) How pH affects DISINFECTANT efficacy; and 6) How to decrease and increase pH.
Total Alkalinity Total alkalinity including: 1) How total alkalinity relates to pH; 2) Effects of low and high total alkalinity; 3) Factors that affect total alkalinity; 4) Ideal total alkalinity range; and 5) How to increase or decrease total alkalinity.
Calcium Hardness Calcium hardness including: 1) Why water naturally contains calcium; 2) How calcium hardness relates to total hardness and temperature; 3) Effects of low and high calcium hardness; 4) Factors that affect calcium hardness; 5) Ideal calcium hardness range; and 6) How to increase or decrease calcium hardness.
Temperature Water temperature including: 1) How low and high water temperatures increase the likelihood of corrosion and scaling, respectively; 2018 MAHC CODE 6.0 Policies & Management 152 2) Effect on DISINFECTION, its health effects, and other operational considerations; 3) Health effects; and 4) Other operational considerations.
Total Dissolved Solids TDS including: 1) Why the concentration of TDS increases over time; 2) Association with conductivity and organic CONTAMINANTS; and 3) Key TDS levels as they relate to starting up an AQUATIC FACILITY and galvanic corrosion.
Water Treatment Systems Water treatment systems including: 1) Descriptions of system use, MONITORING
Maintenance Calculations Calculations including: 1) Explanations of why particular calculations are important; 2) How to convert units of measurement within and between the English and metric systems; 3) How to determine the surface area of regularly and irregularly shape AQUATIC VENUES; 4) How to determine the water volume of regularly and irregularly shaped AQUATIC VENUES; and 5) Why proper sizing of filters, pumps, pipes, and feeders is important.
Main Drains Main drains including: 1) A description of the role of main drains; 2) Why they should not be resized without engineering and public health consultation;
3) The importance of daily inspection of structural integrity; and 4) Discussion on balancing the need to maximize surface water flow while minimizing the likelihood of entrapment.
Gutters & Surface Skimmers Gutters and surface SKIMMERS including: 1) Why it is important to collect surface water; 2) A description of different gutter types (at a minimum: scum, surge, and rim-flow); 3) How each type generally works; 4) The advantages and disadvantages of each; and 5) Description of the components of SKIMMERS (e.g., weir, basket, and equalizer assembly) and their respective roles. Mechanical System Balance Mechanical system balance including: 1) An understanding of mechanical system balancing; 2) Methodology for setting proper operational water levels; 3) Basic hydraulics which affect proper functioning of the balance tank and AQUATIC VENUE; 4) Methods of setting and adjusting modulation valves; 5) Balance lines; 6) SKIMMERS; 7) Main drains; 8) The operation of the water make-up system; 9) Collector tanks/gravity drainage systems; and 10) Automatic controllers.
Circulation Pump & Motor Circulation pump and motor including: 1) Descriptions of the role of the pump and motor; 2) Self-priming and flooded suction pumps; 3) Key components of a pump and how they work together; 4) Cavitation; 5) Possible causes of cavitation; and 6) Troubleshooting problems with the pump and motor.
Valves Valves including descriptions of different types of valves (e.g., gate, ball, butterfly/wafer, multi-port, globe, modulating/ automatic, and check) and their safe operation.
Return Inlets Return INLETS including a description of the role of return INLETS and the importance of replacing fittings with those that meet original specifications.
Filtration Filtration including: 1) Why filtration is needed; 2) A description of pressure and vacuum filters and different types of filter media; 3) How to calculate filter surface area; 4) How to read pressure gauges; 5) A general description of sand, cartridge, and diatomaceous earth filters and alternative filter media types to include, at a minimum, perlite, zeolite, and crushed glass; 6) The characteristic flow rates and particle size entrapment of each filter type; 7) How to generally operate and maintain each filter type; 8) Troubleshooting problems with the filter; and 9) The advantages and disadvantages of different filters and filter media.
Filter Backwashing/Cleaning Filter backwashing/cleaning including: 1) Determining and setting proper backwash flow rates; 2) When backwashing/cleaning should be done and the steps needed for clearing a filter of fine particles and other CONTAMINANTS; 3) Proper disposal of waste water from backwash; and 4) What additional fixtures/equipment may be needed (i.e., sump, separation tank).

# Health and Safety

# A
Recreational Water Illness Recreational water illness (RWI) including: 1) How water can contain or become contaminated with parasites, bacteria, viruses, fungi, DBPS, or unsafe levels of chemicals; and 2) The role of the operator in reducing risk.
Causes of RWIs Common infectious and chemical causes of RWIs, including but not limited to: 1) Diarrheal illness (Cryptosporidium, Giardia, Shigella, and norovirus); 2) Skin rashes (Pseudomonas aeruginosa, molluscum contagiosum virus); 3) Respiratory illness (Legionella); 4) Neurologic infections (echovirus, Naegleria); 5) Eye/ear illness (Pseudomonas aeruginosa, adenovirus, Acanthamoeba); 6) Hypersensitivity reactions (Mycobacterium avium complex, Pontiac fever, endotoxins); and 7) Health effects of chloramines and DBPS.

# A
RWI Prevention Recreational water illness (RWI) prevention including: 1) Methods of prevention of RWIs, including but not limited to chemical level control; 2) Why public health, operators, and PATRONS need to be educated about RWIs and collaborate on RWI prevention; 3) The role of SHOWERING; 4) The efficacy of swim diapers; 5) Formed-stool and diarrheal fecal incident response; and 6) Developing a plan to minimize PATHOGEN and other biological (e.g., blood, vomit, sweat, urine, and skin and hair care products) contamination of the water.
Risk Management Risk management including techniques that identify hazards and risks and that prevent illness and injuries associated with AQUATIC FACILITIES open to the public.
Record Keeping Record keeping including the need to keep accurate and timely records of the following areas: 1) Operational conditions (e.g., water chemistry, water temperature, filter pressure differential, flow meter reading, and water clarity); 2) Maintenance performed (e.g., backwashing, change of equipment); 3) Incidents and response (e.g., fecal incidents in the water and injuries); and 4) Staff training and attendance.

# A
Chemical Safety Chemical SAFETY including steps to safely store and handle chemicals including: 1) How to read labels and SDS; 2018 MAHC CODE 6.0 Policies & Management 156 2) How to prevent individual chemicals and inorganic and organic CHLORINE products from mixing together or with other substances (including water) or in chemical feeders; and 3) Use of PPE.

# A
Entrapment Prevention Entrapment prevention including: 1) Different types of entrapment (e.g., hair, limb, body, evisceration/disembowelment, and mechanical); 2) How to prevent and/or decrease likelihood of entrapment; and 3) Requirements of the VGB Act.
Electrical Safety Electrical SAFETY including possible causes of electrical shock and steps that can be taken to prevent electrical shock (e.g., bonding, grounding, ground fault interrupters, and prevention of accidental immersion of electrical devices).
Rescue Equipment Rescue equipment including a description and rationale for the most commonly found rescue equipment including: 1) Rescue tubes, 2) Reaching poles, 3) Ring buoys and throwing lines, 4) Backboards, 5) First aid kits, 6) Emergency alert systems, 7) Emergency phones with current numbers posted, and 8) Resuscitation equipment.
Injury Prevention Injury prevention including basic steps known to decrease the likelihood of injury, at a minimum: 1) Banning glass containers at AQUATIC FACILITIES, 2) PATRON education, and 3) Daily visual inspection for hazards.
Drowning Prevention Drowning prevention including causes and prevention of drowning.
Barriers BARRIERS including descriptions of how fences, gates, doors, and SAFETY covers can be used to prevent access to water; and basics of design that effectively prevent access to water.
Signage & Depth Markers Signage and depth markers including the importance of maintaining signage and depth markers.
Facility Sanitation Facility sanitation including: 1) Steps to clean and DISINFECT all surfaces that PATRONS would commonly come in contact with (e.g., DECK, restrooms, and diaper-changing areas), and 2) Procedures for implementation of MAHC 6.5: Fecal-Vomit-Blood Contamination Response, in relation to responding to a body fluid spill on these surfaces.
Emergency Response Plan Emergency response plan including: 1) Steps to respond to emergencies (at a minimum, severe weather events, drowning or injury, contamination of the water, chemical incidents); and 2) Communication and coordination with emergency responders and local health department notification as part of an EAP. Regulations Regulations including the application of local, regional, state, and federal regulations and STANDARDS relating to the operation of AQUATIC FACILITIES.

# A Operations
Immediate Closure Course work shall also highlight reasons why an inspector or operator would immediately close an AQUATIC FACILITY.
Local & State Health Departments Duties and responsibilities of local and state health departments including stressing the importance of a good working relationship with the local and state health department.
Aquatic Facility Types AQUATIC FACILITY types including common AQUATIC VENUE types and settings and a discussion of features and play equipment that require specific operation and maintenance steps.

# A
Daily/Routine Operations Daily/routine operations including listing and describing the daily inspection and maintenance requirements of an AQUATIC FACILITY including, but not limited items listed: 1) Walkways/DECK and exits are clear, clean, free of debris; 2) Drain covers, vacuum fitting covers, SKIMMER equalizer covers, and any other suction outlet covers are in place, secure, and unbroken; 3) SKIMMER baskets, weirs, lids, flow adjusters, and suction outlets are free of any blockage; 4) INLET and return covers and any other fittings are in place, secure, and unbroken; 5) SAFETY warning signs and other signage are in place and in good repair; 6) Entrapment prevention systems are operational; 7) Recirculation, DISINFECTION systems, controller(s), and probes are operating as required; 8) SECONDARY DISINFECTION SYSTEMS and/or SUPPLEMENTAL TREATMENT SYSTEMS are operating as required; 9) Underwater lights and other lighting are intact with no exposed wires or water in lights; 10) Slime and biofilm has been removed from accessible surfaces of AQUATIC VENUE, SLIDES, and other AQUATIC FEATURES; 6.1.2.1.5.9
Air Circulation Air circulation including: 1) AIR HANDLING SYSTEM considerations for an INDOOR AQUATIC FACILITY, 2) The importance of regulating humidity, 3) The need to maintain negative pressure, 4) How poor indoor air quality can affect PATRONS and staff, and 5) How to balance air change and energy efficiency.
Spa & Therapy Pool Issues SPA and THERAPY POOL issues including: 1) Operational implications of smaller volumes of water and HOT WATER, 2) How to maintain water chemistry, 3) Typical water temperature ranges highlighting maximum temperatures, 4) Risks of hyperthermia and hypothermia, 5) Need for emergency shut-off switches, and 6) Frequency of cleaning, draining, and DISINFECTION.

# General Requirements for

# A Final Exam
Operator training course providers shall furnish course final exam information including: 1) Final exam(s), which at a minimum, covers all of the essential topics as outlined in MAHC 6.1.2.1; 2) Final exam passing score criteria; and 3) Final exam security procedures.

# Final Exam Administration
Operator training course providers shall provide final exam administration, proctoring and security procedures including: 1) Checking student's government-issued photo identification, or another established process, to ensure that the individual taking the exam is the same person who is given a certificate documenting course completion and passing of exam, 2) Final exam completion is without assistance or aids that are not allowed by the training agency, and 3) Final exam is passed, prior to issuance of a QUALIFIED OPERATOR certificate.

# A Course Certificates

# A Continuing Education 

# A Certificate Renewal
Operator training course providers shall furnish course certificate renewal information including: 1) Criteria for re-examination with a renewal exam that meets the specifications for initial exam requirements and certificate issuance specified in this CODE; or 2) Criteria for a refresher course with an exam that meets the specifications for the initial course, exam, and certificate issuance requirements specified in this CODE.

# A Certificate Suspension and Revocation Course providers shall have procedures in place
for the suspension or revocation of certificates.

# Evidence of Health Hazard
Course providers may suspend or revoke a QUALIFIED OPERATOR'S certificate based on evidence that the QUALIFIED OPERATOR'S actions or inactions unduly created SAFETY and health hazards.

# Evidence of Cheating
Course providers may suspend or revoke a QUALIFIED OPERATOR'S certificate based on evidence of cheating or obtaining the certificate under false pretenses.

# A Additional Training or Testing
The AHJ may, at its discretion, require additional operator training or testing.

# A Certificate Recognition
The AHJ may, at its discretion, choose to recognize, not to recognize, or rescind a previously recognized certificate of a QUALIFIED OPERATOR based upon demonstration of inadequate knowledge, poor performance, or due cause.

# A Course Recognition

# A Emergency Response Skill Set
Emergency response content shall include:
1) Responsibilities of a QUALIFIED LIFEGUARD in reacting to an emergency;
2) Recognition and identification of a person in distress and/or drowning;
3) Methods to communicate in response to an emergency; 4) Rescue skills for a person who is responsive or unresponsive, in distress, or drowning; 5) Skills required to rescue a person to a position of SAFETY; 6) Skills required to extricate a person from the water with assistance from another lifeguard(s) and/or PATRON(S); and 7) Knowledge of the typical components of an EAP for AQUATIC VENUES.

# A
Resuscitation Skills CPR/AED, AED use, BVM (adult & pediatric) use, and other resuscitation skills shall be professional level skills that follow treatment protocols consistent with the current ECC and/or; the ILCOR guidelines for cardiac compressions; foreign body restriction removal; and rescue breathing for infants, children, and adults.

# A First Aid
First Aid training shall include:
1) Basic treatment of bleeding, shock, sudden illness, and muscular/skeletal injuries as per the guidelines of the National First Aid Science Advisory Board;
2018 MAHC CODE 6.0 Policies & Management 162 2) Knowing when and how to activate the EMS; 3) Rescue and emergency care skills to minimize movement of the head, neck and spine until EMS arrives for a person who has suffered a suspected spinal injury on land or in the water; and 4) Use and the importance of universal precautions and PPE in dealing with body fluids, blood, and preventing contamination according to current OSHA guidelines.

# A Legal Issues
Course content related to legal issues shall include but not be limited to:
1) Duty to act, 2) STANDARD of care, 3) Negligence, 4) Consent, 5) Refusal of care, 6) Abandonment, 7) Confidentiality, and 8) Documentation.

# Lifeguard Training Delivery

# A Standardized and Comprehensive
The educational delivery system shall include STANDARDIZED student and instructor materials to convey all topics including but not limited to those listed per MAHC 6.2.1.1.

# A Skills Practice

# A Shallow Water Training If a training agency offers a certification with a distinction
between "shallow water" and "deep water" lifeguards, candidates for shallow water certification shall have training and evaluation in the deepest depth allowed for the certification.

# A Deep Water Training If a training agency offers a certification with a distinction
between "shallow water" and "deep water" lifeguards, candidates for deep water certification shall have training and evaluation in at least the minimum depth allowed for the certification.

# A
Sufficient Time Course length shall provide sufficient time to cover content, practice, skills, and evaluate competency for the topics listed in MAHC 6.2.1.1.

# A Certified Instructors
Lifeguard instructor courses shall be taught only by individuals currently certified as instructor trainers by the training agency which developed the lifeguard course materials.

# A Minimum Prerequisites
Lifeguard training agencies shall develop minimum instructor prerequisites that include, but are not limited to those outlined in MAHC 6.2.1.2.6.2. 3) An evaluation and feedback process to improve instructor candidate presentation skills/techniques; 4) Course management and administration procedures; and 5) Testing and evaluation procedures.

# A Completed Training

# A
Instructor Renewal/Recertification Process Lifeguard training agencies shall have a lifeguard instructor renewal/recertification process.

# A
Quality Control Training agencies shall have a quality control system in place for evaluating a lifeguard instructor's ability to conduct courses.

# A Requirements
Lifeguard training course providers shall have a final exam including but not limited to: 1) Written and practical exams covering topics outlined in MAHC 6.2.1.1;
2) Final exam passing score criteria including the level of proficiency needed to pass practical and written exams; and 3) Security procedures for proctoring the final exam to include: a. Checking student's government-issued photo identification, or another established process, to ensure that the individual taking the exam is the same person who is given a certificate documenting course completion and passing of exam; and b. Final exam is passed, prior to issuance of a certificate.

# A
Instructor Physically Present The instructor of record shall be physically present at all classroom and in-person contact time, skills evaluation, and testing during the course.

# A Certifications
Lifeguard and lifeguard instructor certifications shall be issued to recognize successful completion of the course as per the requirements of MAHC 6.2.1.1 through 6.2.1.3.8.

# A Number of Years
Length of valid certification shall be a maximum of 2 years for lifeguarding and first aid, and a maximum of 1 year for Cardiopulmonary Resuscitation (CPR/AED).

# A Documentation

# A Expired Certificate
When a certificate has expired for more than 45 days, the QUALIFIED LIFEGUARD shall retake the course.

# Expired Less than 45 Days
When a certificate has expired for 45 days or less, the QUALIFIED LIFEGUARD shall retake the course or complete a challenge program.

# A
Challenge Program A QUALIFIED LIFEGUARD challenge program, when utilized, 2018 MAHC CODE 6.0 Policies & Management 164 shall be completed in accordance with the training of the original certifying agency, by an instructor certified by the original certifying agency, and include but not be limited to: 1) Pre-requisite screening; 2) A final practical exam, with certified instructor present, demonstrating all skills, in and out of the water required in the original lifeguard course for certification, which complies with MAHC 6.2.1.1, and uses the equipment specified in MAHC 6.2.1.2.7; and 3) Final written, proctored exam.

# A
Certificate Renewal Certificate renewal, when used, shall include the following: 1) Completion no later than 45 days after certificate expiration; 2) Conducted in accordance with the training of the original certifying agency; 3) Taught by an instructor certified by the original certifying agency; 4) Conducted with a demonstration of skills, in and out of the water, required in the original course, which complies with MAHC 6.2.1.1, and uses the equipment specified in MAHC 6.2.1.2.7; 5) A final written, proctored exam; and 6) A final practical exam with a certified instructor(s) of record present and actively administering the practical testing; or 7) Completion of a Challenge Program in accordance with MAHC 6.2.1.3.7.2, no later than 45 days after certificate expiration.

# A Certificate Suspension and Revocation
Lifeguard training agencies shall have procedures in place for the suspension or revocation of certificates. 5) MONITORING lifeguard performance as it relates to lifeguard and facility-specific training, including preservice assessments; 6) Strategies to reduce risk and mitigate the health and SAFETY hazards to both the PATRONS and the staff; 7) Knowledge of the legal issues and responsibilities relating to lifeguarding as listed in MAHC 6.2.1.1.5; and 8) Knowledge of the proper use and maintenance of the equipment required per MAHC 5.8.5.
Lifeguard Supervisor Training Delivery

# A Standardized and Comprehensive

# Traditional and Blended Courses
For traditional and blended learning courses, the educational delivery system shall include STANDARDIZED student and instructor content and delivery to convey all topics including but not limited to those listed per MAHC 6.

# A
Sufficient Time
Traditional and Blended Courses For traditional and blended learning classes, course length shall provide sufficient time to cover content, demonstration, skill practice, and evaluate competency for the topics listed in MAHC 6.2.2.2.

# E-Learning Courses
For e-learning courses, course length shall provide sufficient time to cover content, provide for on-line activities relating to content as necessary to reinforce comprehension of learning objectives, and assessments sufficient to evaluate competency for the topics listed in MAHC 6.2.2.2.
Course Setting LIFEGUARD SUPERVISOR training courses shall be:
1) Taught in person by a trained LIFEGUARD SUPERVISOR instructors; or 2) Blended learning offerings with electronic content deliverables created, and presented by, and in-person portions taught by, trained LIFEGUARD SUPERVISOR instructors; or 3) On-line offerings created and presented by trained LIFEGUARD SUPERVISOR instructors.

# A
Lifeguard Supervisor Course Instructor Certification LIFEGUARD SUPERVISOR course instructors shall be certified through a training agency or by the facility whose training programs meets the requirements specified in MAHC 6.2.2.
Lifeguard Supervisor Course Instructor LIFEGUARD SUPERVISOR course shall be taught by trained LIFEGUARD SUPERVISOR instructors through a training agency or by the facility whose training programs meets the requirements specified in MAHC 6.2.2.

# A
Minimum Prerequisites Course providers shall develop minimum instructor prerequisites that include, but are not limited to:

# A
Quality Control Course provider shall have a quality control system in place for evaluating a LIFEGUARD SUPERVISOR instructor's ability to conduct courses.
Lifeguard Supervisor Renewal & Recertification LIFEGUARD SUPERVISOR training agencies shall have a LIFEGUARD SUPERVISOR instructor renewal/recertification process.
Competency and Certificate of Completion

# A Lifeguard Supervisor Proficiency LIFEGUARD SUPERVISOR training course providers
shall have a method to evaluate proficiency of the content in MAHC 6.2.2.2.

# A Lifeguard Supervisor Certificate of Completion

# Bathers and Management
A QUALIFIED OPERATOR shall be on site or immediately available within 2 hours during all hours of operation at an AQUATIC FACILITY that is: 1) Permitted BATHER COUNT is greater than 200 BATHERS daily; or 2) Operated by a municipality; or 3) Operated by a school.
Compliance History A QUALIFIED OPERATOR shall be available on-site or immediately available within 2 hours during all hours of operation at an AQUATIC FACILITY that has a history of CODE violations which in the opinion of the permit issuing official require one or more on-site QUALIFIED OPERATORS.
Contracted Off-site Qualified Operators All other AQUATIC FACILITIES shall have an onsite QUALIFIED OPERATOR immediately available within 2 hours or a contract with a QUALIFIED OPERATOR for a minimum of weekly visits and assistance whenever needed.

# Visit Documentation
Written documentation of these visits for contracted off-site QUALIFIED OPERATOR visits and assistance consultations shall be available at the AQUATIC FACILITY for review by the AHJ.

# Documentation Details
The written documentation shall indicate the checking, MONITORING, and testing outlined in MAHC 6.4.1.2.

# Visit Corrective Actions The written documentation shall indicate what corrective
actions, if any, were taken by the contracted off-site QUALIFIED OPERATOR during the scheduled visits or assistance requests.
Onsite Responsible Supervisor All AQUATIC FACILITIES without a full time on-site QUALIFIED OPERATOR shall have a designated on-site RESPONSIBLE SUPERVISOR.

# A Onsite Responsible Supervisor Duties

# A Zone of Patron Surveillance
When QUALIFIED LIFEGUARDS are used, the staffing plan shall include diagrammed zones of PATRON surveillance for each AQUATIC VENUE such that:
2018 MAHC CODE 6.0 Policies & Management 168 1) The QUALIFIED LIFEGUARD is capable of viewing the entire area of the assigned zone of PATRON surveillance, 2) The QUALIFIED LIFEGUARD is able to reach the furthest extent of the assigned zone of PATRON surveillance within 20 seconds, 3) Identify whether the QUALIFIED LIFEGUARD is in an elevated stand, walking, in-water and/or other approved position, 4) Identifying any additional responsibilities for each zone, and 5) All areas of each AQUATIC VENUE are assigned a zone of PATRON surveillance.

# A
Rotation Procedures When QUALIFIED LIFEGUARDS are used, the staffing plan shall include QUALIFIED LIFEGUARD rotation procedures such that: 1) Identifying all zones of PATRON surveillance responsibility at the AQUATIC FACILITY;
2) Operating in a manner so as to provide an alternation of tasks such that no QUALIFIED LIFEGUARD conducts PATRON surveillance activities for more than 60 continuous minutes; and 3) Have a practice of maintaining coverage of the zone of PATRON surveillance during the change of the QUALIFIED LIFEGUARD.
Alternation of Tasks Alternation of tasks may include any one of the following:
1) Change of zone of PATRON surveillance where the QUALIFIED LIFEGUARD must walk or be transported to another zone of PATRON surveillance. 2) Have a period of at least 10 minutes of non-PATRON surveillance activity such as taking a break, conducting maintenance, or conducting ride dispatch.

# Supervision Protocols
When QUALIFIED LIFEGUARDS are used, the STAFFING PLAN shall include lifeguard supervision protocols to achieve the requirements of MAHC 6.3.3.

# A
Emergency Action Plan EAPS and operating procedures shall include but not be limited to:
1) Outline types of emergencies and IMMINENT HEALTH HAZARDS, as per MAHC 6.6.3; 2) Outline the methods of communication between responders, emergency services, and PATRONS; 3) Identify each anticipated responder; 4) Outline the tasks of each responder; 5) Identify required equipment for each task; and 6) Emergency closure requirements.

# A
Coordination of Response When one or more QUALIFIED LIFEGUARDS are used, the SAFETY PLAN and the EAP shall identify the best means to provide additional persons to rapidly respond to the emergency to help the initial rescuer.

# Pre-Service Requirements
The Pre-Service Plan shall include:
1) Policies and procedure training specific to the AQUATIC FACILITY, 2) Demonstration of SAFETY TEAM skills specific to the AQUATIC FACILITY prior to assuming on-duty lifeguard responsibilities, and 3) Documentation of training.

# A Safety Team EAP Training
Prior to active duty, all members of the SAFETY TEAM shall be trained on, and receive a copy of, and/or have a copy posted and always available of the specific policies and procedures for the following: 1) Staffing Plan, 2) EAP, 3) Emergency closure, and 4) Fecal, vomit, or blood contamination on surfaces and in the water as outlined in MAHC 6.5.
Copies Maintained Originals or copies of certificates shall be maintained at the AQUATIC FACILITY and be available for inspection.

# A Documentation of Pre-Service Training Documentation verifying the pre-service
requirements shall be completed by the person conducting the pre-service training, maintained at the facility for 3 full years, and be available for inspection.
Lifeguard Certificate When QUALIFIED LIFEGUARDS are used, they shall present an unexpired certificate as per MAHC 6.2.1.3.4 prior to assuming on-duty lifeguard responsibilities.
Copies Maintained Originals or copies of certificates shall be maintained at the facility and be available for inspection.
In-Service Training During the course of their employment, AQUATIC FACILITY staff shall participate in periodic in-service training to maintain their skills.

# A Documentation of In-Service Training Documentation verifying the in-service
requirements shall be completed by the person conducting the in-service training, maintained at the AQUATIC FACILITY for 3 years, and available for inspection.

# A In-Service Documentation

# A In-Service Training Plan

# A Competency Demonstration
When QUALIFIED LIFEGUARDS are used, they shall be able to demonstrate proficiency in the skills as outlined by MAHC 6.2.1 and have the ability to perform the following water rescue skills consecutively so as to demonstrate the ability to respond to victim and complete the rescue: 1) Reach the furthest edge of zones of BATHER surveillance within 20 seconds; 2) Recover a simulated victim, including extrication to a position of SAFETY consistent with MAHC 6.2.1.1.2; and 3) Perform resuscitation skills consistent with MAHC 6.2.1.1.3.

# A AHJ Authority to Approve Safety Plan
The AHJ shall have the authority, if they so choose, to require: 1) Submittal of the SAFETY PLAN for archiving and reference, or 2) Submittal of the SAFETY PLAN for review and approval prior to opening to the public.

# A Safety Plan on File
The SAFETY PLAN shall be kept on file at the AQUATIC FACILITY.

# A Safety Plan Implemented
The elements detailed in the SAFETY PLAN shall be implemented and in evidence in the AQUATIC FACILITY operation and is subject to review for compliance by the AHJ at any time.

# A
Shallow Water Certified Lifeguards QUALIFIED LIFEGUARDS certified for shallow water depths shall not be assigned to a BODY OF WATER in which any part of the water's depth is greater than the depth for which they are certified.
Emergency Response and Communications Plans

# A Emergency Response and Communication Plan AQUATIC FACILITIES shall create
and maintain an operating procedure manual containing information on the emergency response and communications plan including an EAP, Facility Evacuation Plan, and Inclement Weather Plan.

# Emergency Action Plan
A written EAP shall be developed, maintained, and updated as necessary for the AQUATIC FACILITY.

# Annual Review and Update
The EAP shall be reviewed with the AQUATIC FACILITY staff and management annually or more frequently as required when changes occur with the dates of the review recorded in the EAP.

# Available for Inspection
The written EAP shall be kept at the AQUATIC FACILITY and available for emergency personnel and/or AHJ upon request.

# A
Training Documentation Documentation from employees trained in current EAP shall be available upon request.

# Components
The EAP shall include at a minimum:
1) A diagram of the AQUATIC FACILITY;
2) A list of emergency telephone numbers;
3) The location of first aid kit and other rescue equipment (BVM, AED, if provided, backboard, etc.); 4) An emergency response plan for accidental chemical release; and 5) A fecal/vomit/blood CONTAMINATION RESPONSE PLAN as outlined in MAHC 6.5.1.

# Accidental Chemical Release Plan
The accidental chemical release plan shall include procedures for: 1) How to determine when professional HAZMAT response is needed, 2) How to obtain it, 3) Response and cleanup, 4) Provision for training staff in these procedures, and 5) A list of equipment and supplies for clean-up.
Remediation Supplies The availability of equipment and supplies for remediation procedures shall be verified by the operator at least weekly.
Facility Evacuation Plan A written Facility Evacuation Plan shall be developed and maintained for the facility.

# Evacuation Plan Components
This plan shall include at a minimum: 1) Actions to be taken in cases of drowning, serious illness or injury, chemical handling accidents, weather emergencies, and other serious incidents; and 2) Defined roles and responsibilities for all staff.
Communication Plan A communication plan shall exist to facilitate activation of internal emergency response centers and/or community 911/EMS as necessary.

# A
Inclement Weather Plan AQUATIC FACILITIES shall have a contingency/response plan for localized weather events that may affect their operation (i.e., lightning, hurricanes, tornados, high winds, etc.).

# A Include
The manual shall at minimum include, but not be limited to the following items:

# A
Notify the AHJ In addition to making such records, the owner/operator shall ensure that the AHJ is notified within 24 hours of the occurrence of an incident recorded in MAHC 6.4.1.4.1.

# A Lifeguard Rescue Records
The owner/operator shall also record all lifeguard rescues where the QUALIFIED LIFEGUARD enters the water and activates the aquatic EAP.

# A Signage

# Facility Rules
The operator shall post and enforce the AQUATIC FACILITY rules governing health, SAFETY, and sanitation.

# Lettering
The lettering shall be legible and at least 1 inch (25.4 mm or 36 point type)
high, with a contrasting background.

# A Sign Messages
Signage shall be placed in a conspicuous place at the entrance of the AQUATIC FACILITY communicating expected and prohibited behaviors and other information using text that complies with the intent of the following information: 3 signage requirement number 1 may be amended to include on-site emergency staff contact information if emergency trained personnel are on site so that the response would be faster than calling 911.
Diving Well AQUATIC FACILITIES with diving wells may amend signage requirement number 11 to read that diving is not allowed in all AQUATIC VENUES except for the diving well.
Posters Recreational water illness prevention posters shall be posted conspicuously in the AQUATIC FACILITY at all times.
Unstaffed Aquatic Facilities without Lifeguards In addition to signage messages 1 through 13, unstaffed AQUATIC FACILITIES shall also include signage messages covering: 1) No Lifeguard on Duty: Children under 14 years of age must have adult supervision, and 2) Hours of operation; AQUATIC FACILITY use prohibited at any other time.
Posters In AQUATIC FACILITIES not requiring lifeguards, CPR posters reflecting the latest STANDARDS shall be posted conspicuously at all times.
Multiple Aquatic Venues For AQUATIC FACILITIES with multiple AQUATIC VENUES, MAHC 6.4.2.2.3 signage item numbers 3 and, if applicable, number 11, or text complying with the intent of the information, shall be posted at the entrance to each AQUATIC VENUE except such posting is not required at WATERSLIDES.
Movable Bottom Floor Signage In addition to the MAHC 6.4.2.2.3 requirements, AQUATIC VENUES with moveable bottom floors shall also have the following information or text complying with the intent of the following information: 1) A sign for AQUATIC VENUE water depth in use shall be provided and clearly visible; 2) A "NO DIVING" sign shall be provided; and 3) The floor is movable and AQUATIC VENUE depth varies.

# A
Spa Signs In addition to the MAHC 6.4.2.2.3 requirements, SPAS shall also have the following information or text complying with the intent of the following information: 1) Maximum water temperature is 104 F (40C); 2) Children under age 5 and people using alcohol or drugs that cause drowsiness shall not use SPAS; 3) Pregnant women and people with heart disease, high blood pressure or other health problems should not use SPAS without prior consultation with a healthcare provider; 4) Children under 14 years of age shall be supervised by an adult; and 5) Use of the SPA when alone is prohibited (if no lifeguards on site).
Diaper-Changing Station Signage Signage shall be posted at DIAPER-CHANGING STATIONS stating or containing information, or text complying with the intent of the following information: 1) Dispose of used disposable diapers in the diaper bucket or receptacle provided; 2) Dump contents from reusable diapers into toilets and bag diapers to take home; 3) Use the materials provided to clean/SANITIZE the surface of the DIAPER-CHANGING STATION before and after each use; 4) Wash your hands and your child's hands after diapering; and 5) Do not swim if ill with diarrhea.
Swimmer Empowerment Methods

# A Public Information and Health Messaging
The owner/operator shall ensure that a public information and health messaging program to inform INDOOR AQUATIC FACILITY PATRONS of their impact on INDOOR AQUATIC FACILITY air quality is developed and implemented.

# A Post Inspection Results
The results of the most recent AHJ inspection of the AQUATIC FACILITY shall be posted at the AQUATIC FACILITY in a location conspicuous to the public.

# A
Minimum A minimum of one person on-site while the AQUATIC FACILITY is open for use shall be: 1) Trained in the procedures for response to formed-stool contamination, diarrheal contamination, vomit contamination, and blood contamination; and 2) Trained in PPE and other OSHA measures including the Bloodborne Pathogens Standard 29 CFR 191029 CFR .1030 to minimize exposure to bodily fluids that may be encountered as employees in an aquatic environment.

# Informed
Staff shall be informed of any updates to the response plan.

# Equipment and Supply Verification
The availability of equipment and supplies for remediation procedures shall be verified by the QUALIFIED OPERATOR at least weekly.

# Plan Review
The response plan shall be reviewed at least annually and updated as necessary.

# A
No Vacuum Cleaners Aquatic vacuum cleaners shall not be used for removal of contamination from the water or adjacent surfaces unless vacuum waste is discharged to a sanitary sewer and the vacuum equipment can be adequately DISINFECTED.

# A
Treated AQUATIC VENUE water that has been contaminated by feces or vomit shall be treated as follows: 1) Check to ensure that the water's pH is 7.5 or lower and adjust if necessary; 2) Verify and maintain water temperature at 77F (25C) or higher;
3) Operate the filtration/RECIRCULATION SYSTEM while the POOL reaches and maintains the proper free CHLORINE concentration during the remediation process; 4) Test the CHLORINE RESIDUAL at multiple sampling points to ensure the proper free CHLORINE concentration is achieved throughout the POOL for the entire DISINFECTION time; and 5) Use only non-stabilized CHLORINE products to raise the free CHLORINE levels during the remediation.
Aquatic Venue Water Contamination Disinfection 6.5.

# A Pools Containing Chlorine Stabilizers
In AQUATIC VENUE water that contains CYA or a stabilized CHLORINE product, water shall be treated by doubling the inactivation time required under MAHC 6.5.3.1.

# Measurement of Inactivation Time

# Pools Containing Chlorine Stabilizers
In AQUATIC VENUE water that contains CYA or a stabilized CHLORINE product, water shall be treated by doubling the inactivation time required under MAHC 6.5.3.3.

# Measurement of the Inactivation Time Measurement of the inactivation time
required shall start when the AQUATIC VENUE reaches the intended free CHLORINE level.

# A
Blood-Contamination Blood contamination of a properly maintained AQUATIC VENUE'S water does not pose a public health risk to swimmers.

# Operators Choose Treatment Method
Operators may choose whether or not to close the AQUATIC VENUE and treat as a formed stool contamination as in MAHC 6.5.3.1 to satisfy PATRON concerns.

# A
Procedures for Brominated Pools Formed-stool, diarrheal-stool, or vomit-contaminated water in a brominated AQUATIC VENUE shall have CHLORINE added to the AQUATIC VENUE in an amount that will increase the FREE CHLORINE RESIDUAL to the level specified for the specific type of contamination for the specified time.

# Bromine Residual
The bromine residual shall be adjusted if necessary before reopening the AQUATIC VENUE.

# A

# Legionella Contamination 6.5.3.6.1
Remediation and Testing For remediation and testing of AQUATIC VENUES suspected of being contaminated with Legionella the QUALIFIED OPERATOR shall: 1) Close the SPA tub to BATHERS immediately, and shut down the hydrotherapy jets and circulation pumps, but do not drain the water. 2) Contact the state or local public health agency having jurisdiction for information about laboratory testing for Legionella. If the health department determines that laboratory testing is needed, water and biofilm samples should be taken from the SPA tub, hydrotherapy jets, drain, and filters/filter media to test for Legionella by culture before taking the steps below. Sampling and laboratory testing are complicated and should always be done in collaboration with your state or local public health agency and a laboratory with Legionella testing expertise. 3) Proceed as directed below after samples have been taken; it is not necessary to wait for laboratory test results. However, the SPA should not be reopened to BATHERS until all test results are negative for Legionella. 4) Scrub vigorously all SPA surfaces, skimming devices, circulation components with FREE CHLORINE at a minimum concentration of 5 parts per million (ppm) to remove any biofilm or slime. After scrubbing, rinse the SPA with clean water and flush to waste.
2018 MAHC CODE 6.0 Policies & Management 181 5) Drain all water from the SPA. Dispose of the water to waste or as directed by the local regulatory authority. 6) Replace filters (for cartridge or DE filters) or filter media (for sand filters). Bag these filters and dispose as normal solid waste. 7) Inspect the SPA thoroughly for any broken or poorly functioning components such as valves, sensors, tubing, or DISINFECTANT feeders. Make any needed repairs. 8) Refill the SPA with clean water. 9) HYPERCHLORINATE using 20 ppm FREE CHLORINE. a.) Keep the hydrotherapy jets off and let the HYPERCHLORINATED water circulate for 1 hour in all of the components of the SPA including the compensation/surge tank, filter housing, and piping. b.) Turn on the hydrotherapy jets to circulate the HYPERCHLORINATED water for 9 additional hours. Ensure that 20 ppm of FREE CHLORINE is maintained in the system for the entire 10 hours. 10) Flush the entire system to remove the HYPERCHLORINATED water from all equipment prior to repeat sampling. 11) Take repeat samples for culture-based laboratory testing to confirm that Legionella has been eliminated.
Water and biofilm samples should be taken from the SPA tub, hydrotherapy jets, drain, filters/filter media, and any part of the SPA that originally tested positive for Legionella. 12) Keep the SPA closed to BATHERS until this repeat testing has confirmed the elimination of Legionella. If laboratory testing is positive for Legionella, repeat steps 4-11 until all testing is negative for Legionella. When all tests are negative, the SPA can be reopened to BATHERS. 13) Ensure that halogen (CHLORINE or bromine) and pH levels meet local and state STANDARDS before reopening the SPA to BATHERS. Maintain water quality according to local and state STANDARDS. 14) If the SPA is associated with an outbreak, the following continued laboratory testing schedule shall be conducted: conduct culture-based testing every 2 weeks for 3 months, then every month for 3 months to ensure complete elimination of Legionella. If at any time during this laboratory testing schedule Legionella is found, DISINFECT again and start the testing schedule over. For AQUATIC VENUES that continue to grow Legionella, consider hiring a consultant with expertise in Legionella.
Surface Contamination Cleaning and Disinfection 6.5.4.1 A Limit Access If a bodily fluid, such as feces, vomit, or blood, has contaminated a surface in an AQUATIC FACILITY, facility staff shall limit access to the affected area until remediation procedures have been completed.

# A
Clean Surface Before DISINFECTION, all visible CONTAMINANT shall be cleaned and removed with disposable cleaning products effective with regard to type of CONTAMINANT present, type of surface to be cleaned, and the location within the facility.

# A Contaminant Removal and Disposal
CONTAMINANT removed by cleaning shall be disposed of in a sanitary manner or as required by law.

# A
Disinfect Surface Contaminated surfaces shall be DISINFECTED with one of the following DISINFECTION solutions: 1) A 1:10 dilution of fresh household bleach with water; or 2) An equivalent EPA REGISTERED DISINFECTANT that has been approved for body fluids DISINFECTION.

# Soak
The DISINFECTANT shall be left to soak on the affected area for a minimum of 20 minutes or as otherwise indicated on the DISINFECTANT label directions.
Remove DISINFECTANT shall be removed by cleaning and shall be disposed of in a sanitary manner or as required by the AHJ.

# High pH Violations
If pH testing equipment does not measure above 8.0, pH level must be at or above the highest value of the test equipment.
6.6.4 Enforcement 6.6.4.1 Placarding of Pool Where an imminent public health hazard is found and remains uncorrected, the AQUATIC VENUE shall be placarded to prohibit use until the hazard is corrected in order to protect the public health or SAFETY of BATHERS.