MAHC Foreword CODE iiSwimming, soaking, and playing in water have been global pastimes throughout written history. Twentieth-century advances in aquatics-combining disinfection, recirculation, and filtration systems-led to an explosion in recreational use of residential and public disinfected water. As backyard and community pool use has swept across the United States, leisure time with family and friends around the pool has increased. Advances in public aquatic facility design have pushed the horizons of treated aquatic facilities from the traditional rectangular community pool to the diverse multi-venue waterpark hosting tens of thousands of users a day. The expansion of indoor aquatic facilities has made the pool and waterpark into year-round attractions. At the same time, research has demonstrated the social, physical, and psychological benefits of aquatics for all age groups. However, these aquatics sector changes-combined with changes in the general population, chlorine-tolerant pathogens, and imperfect bather hygiene-have resulted in significant increases in reports of waterborne outbreaks, with the greatest increase occurring in man-made disinfected aquatic venues. Drowning continues to claim the lives of far too many, especially children, and thousands of people visit hospitals every year for pool chemical-related injuries. The increase in outbreaks and continued injuries necessitates building stronger public health regulatory programs and supporting them with strong partnerships to implement health promotion efforts, conduct research, and develop prevention guidance. It also requires that public health officials continue to play a strong role in overseeing design and construction, advising on operation and maintenance, and helping inform policy and management. The Model Aquatic Health Code (MAHC) is a set of voluntary guidelines based on science and best practices that were developed to help programs that regulate public aquatic facilities reduce the risk of disease, injury, and drowning in their communities. The MAHC is a leap forward from the Centers for Disease Control and Prevention's (CDC) operational and technical manuals published in 1959, 1976, and 1981  and a logical progression of CDC's Healthy Swimming Program started in 2001. The MAHC underscores CDC's long-term involvement and commitment to improving aquatic health and safety. The MAHC guidance document stemmed from concern about the increasing number of pool-associated outbreaks starting in the mid-1990s. Creation of the MAHC was the major recommendation of a 2005 national workshop held in Atlanta, Georgia charged with developing recommendations to reduce these outbreaks. Federal, state, and local public health officials and the aquatics sector formed an unprecedented collaboration to create the MAHC as an all-encompassing health and safety guidance document. The partnership hopes this truly will lead to achieving the MAHC vision of "Healthy and Safe Aquatic Experiences for Everyone" in the future.# MAHC
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# Responsibility of User
This document does not address all safety or public health 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.

# Original Manufacturer Intent
In the absence of exceptions or further guidance, all fixtures and equipment shall be installed according to original manufacturer intent.
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# Local Jurisdiction
The MAHC refers to existing local codes in the jurisdiction for specific needs. In the absence of existing local codes, the authority having jurisdiction should specify an appropriate code reference.

# RWI Outbreaks
Large numbers of recreational water-related outbreaks are documented annually, which is a significant increase over the past several decades.

# Significance of Cryptosporidium
Cryptosporidium causes a diarrheal disease spread from one person to another or, at aquatic venues, by ingestion of fecally-contaminated water. This pathogen is tolerant of CHLORINE and other halogen disinfectants. Cryptosporidium has emerged as the leading cause of pool-associated outbreaks in the United States.

# Drowning and Injuries
Drowning and falling, diving, pool chemical use, and suction injuries continue to be major public health injuries associated with aquatic facilities. Drowning is a leading cause of injury death for young children and a leading cause of unintentional injury death for people of all ages.

# Pool Chemical-Related Injuries
Pool chemical-related injuries occur regularly and can be prevented if pool chemicals are stored and used as recommended. The attendees also recommended that this effort be all-encompassing so that it covered the spread of illness but also included drowning and injury prevention. Such an effort should increase the evidence base for AQUATIC FACILITY design, construction, operation, and maintenance while reducing the time, personnel, and resources needed to create and regularly update POOL CODES across the country.

# Model Aquatic
Since 2007, CDC has been working with the public health sector, the aquatics sector, and academic representatives from across the United States to create this guidance document. Although, the initial workshop was responding to the significant increases in infectious disease outbreaks at AQUATIC FACILITIES, the MAHC is a complete AQUATIC FACILITY guidance document with the goal of reducing the spread of infectious disease and occurrence of drowning, injuries, and chemical exposures at public AQUATIC FACILITIES. Based on stakeholder feedback and recommendations, CDC agreed that public health improvements would be aided by development of an open access, comprehensive, systematic, collaboratively developed guidance document based on science and best practices covering AQUATIC FACILITY design and construction, operation and maintenance, and policies and management to address existing, emerging, and future public health threats.

# MAHC Vision and Mission
The Model Aquatic Health Code's (MAHC) vision is "Healthy and Safe Aquatic Experiences for Everyone". The MAHC's mission is to incorporate science and best practices into guidance on how state and local officials can transform a typical health department pool program into a data-driven, knowledge-based, risk reduction effort to prevent disease and injuries and promote healthy recreational water experiences. The MAHC will provide local and state agencies with uniform guidelines and wording for the areas of design and construction, operation and maintenance, and policies and management of swimming POOLS, SPAS and other public disinfected AQUATIC FACILITIES.

# Science and Best Practice
The availability of the MAHC should provide state and local agencies with the best available guidance for protecting public health using the latest science and best practices so they can use it to create or update their swimming POOL CODES.

# Process
The MAHC development process created comprehensive consensus risk reduction guidance for AQUATIC FACILITIES based upon national interaction and discussion. The development plan encompassed design, construction, alteration, replacement, operation, and management of these facilities. The MAHC is driven by scientific data and best practices. It was developed by a process that included input from all sectors and levels of public health, the aquatics sector, academia, and the general public. It was open for two 60-day public comment periods during the process. It is national and comprehensive in scope and the guidance can be used to write or update POOL CODES across the U.S.
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# Open Access
The MAHC is an open access document that any interested individual, agency, or organization can freely copy, adapt, or fully incorporate MAHC wording into their aquatic facility oversight documents. As a federal agency, CDC does not copyright this material.

# Updating the MAHC
The MAHC will be updated on a continuing basis through an inclusive, transparent, allstakeholder process. This was a recommendation from the original national workshop and is essential to ensure that the MAHC stays current with the latest science, industry advances, and public health findings.

# Authority
Regulatory agencies like state and local governments have the authority to regulate AQUATIC FACILITIES in their jurisdiction.

# CDC Role
The MAHC is hosted by the Centers for Disease Control and Prevention (CDC), a Federal agency whose mission is "To promote health and quality of life by preventing and controlling disease, injury, and disability." Furthermore, CDC has been involved in developing swimming pool-related guidance since the 1950s and officially tracking waterborne disease outbreaks associated with aquatic facility use since 1978.
Public Health Role CDC is "the primary Federal agency for conducting and supporting public health activities in the United States"; however, CDC is not a regulatory agency.

# Model Guidance
The MAHC is intended to be open access guidance that state and local public health agencies can use to write or update their POOL CODES in part or in full as fits their jurisdiction's needs. The CDC adopted this project because no other U.S. federal agency has commission over public disinfected AQUATIC FACILITIES. Considering the CDC's mission and historical interest in aquatics, this organization was the best qualified to lead a national consortia to create such a document.

# Public Health and Consumer Expectations

# Aquatics Sector & Government Responsibility
Both the aquatics sector and the government share the responsibility of offering AQUATIC FACILITIES that provide consumers and aquatics workers with safe and healthy recreational water experiences and job sites and that do not become sources for the 1.0 Preface CODE 48 spread of infectious diseases, outbreaks, or the cause of injuries. This shared responsibility extends to working to meet consumer expectations that AQUATIC FACILITIES are properly designed, constructed, operated, and maintained.

# Swimmer Responsibility
The PATRON or BATHER shares a responsibility in maintaining a healthy swimming environment by practicing the CDC-recommended healthy swimming behaviors to improve hygiene and reduce the spread of disease. Consumers and BATHERS also share responsibility for using AQUATIC FACILITIES in a healthy and safe manner to reduce the incidence of injuries.

# Advantages of Uniform Guidance

# Sector Agreement
The aquatics sector and public health officials recognize the value in uniform, consensus guidance created by multi-sector discussion and agreement -both for getting the best possible information and gaining sector acceptance. Since most public AQUATIC FACILITIES are already regulated, the MAHC is intended to be guidance to assist, strengthen, and streamline resource use by state and local code officials or legislatures that already regulate AQUATIC FACILITIES but need to regularly update and improve their AQUATIC FACILITY oversight and regulation. Uniform, consensus guidance using the latest science and best practices helps all public sectors, including businesses and consumers, resulting in the best product and experiences.
In addition, the MAHC's combination of performance-based and prescriptive recommendations gives AQUATIC FACILITIES freedom to use innovative approaches to achieve acceptable results. However, AQUATIC FACILITIES must ensure that these recommendations are still being met, whatever the approach may be, although innovation should be encouraged to achieve outlined performance-based requirements.

# MAHC Provisions
The MAHC provides guidance on AQUATIC FACILITY design standards & construction, operation & maintenance, and policies & management that can be uniformly adopted for the aquatics sector.
The MAHC:
- Is the collective result of the efforts and recommendations of many individuals, public health agencies, and organizations within the aquatics sector, and  Embraces the concept that safe and healthy recreational water experiences by the public are directly affected by how we collectively design, construct, operate, and maintain our AQUATIC FACILITIES.
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# Aquatic Facility Requirements
Model performance-based recommendations essentially define public aquatic health and safety expectations, usually in terms of how dangerous a pathogen or injury is to the public. By using a combination of performance-based recommendations and prescriptive measures, AQUATIC FACILITIES are free to use innovative approaches to provide healthy and safe AQUATIC FACILITIES whereas traditional evaluations mandate how AQUATIC FACILITIES achieve acceptable results. However, to show compliance with the model performance-based recommendation, the AQUATIC FACILITY must demonstrate that control measures are in place to ensure that the recommendations are being met.
The underlying theme of the MAHC is that it should be based on the latest science where possible, best practices, and that change will be gradual so all parties can prepare for upcoming changes; "Evolution, not revolution".

# Modifications and Improvements in the MAHC 1 st Edition
The MAHC 1st Edition was assembled from 14 modules that were posted for one 60 day public comment period each, revised based upon public comment, and reposted individually with revisions. The individual modules were then assembled and cross checked for discrepancies and duplications arising from the modular development approach. The complete MAHC "Knitted" version was posted for an additional 60-day public comment period to allow reviewers to check wording across sections and submit additional comments. The MAHC "Knitted" version was revised based on the second round of public comment and reposted as the MAHC 1 st Edition.

# MAHC Adoption at State or Local Level

# MAHC Adoption at State or Local Level
The MAHC is provided as guidance for voluntary use by governing bodies at all levels to regulate public AQUATIC FACILITIES. At the state and local levels, the MAHC may be used in part or in whole to:
1) Enact into statute as an act of the state legislative body; or 2) Promulgate as a regulation, rule or code; or 3) Adopt as an ordinance.
CDC is committed to offering, at a minimum, assistance to states and localities in interpreting and implementing the MAHC. CDC welcomes suggestions for how it could best assist localities in using this guidance in the future. CDC also offers a MAHC toolkit (including sample forms and checklists) and is available to give operational guidance to public health pool programs when needed. CDC is committed to expanding its support of the MAHC and ensuring timely updates and improvements.

# Conference for the Model Aquatic Health Code
Other assistance to localities will also be available. The Conference for the Model Aquatic Health Code (CMAHC; www.cmahc.org), an independent, nonprofit 501(c)(3) organization, was created with CDC support in 2013 to support and improve public 1.0 Preface CODE 50 health by promoting healthy and safe aquatic experiences for everyone. The CMAHC's role is to serve as a national clearinghouse for input and advice on needed improvements to CDC's Model Aquatic Health Code (MAHC).The CMAHC will fulfill this role by: 1) Collecting, assessing, and relaying national input on needed MAHC improvements back to CDC for final consideration for acceptance, 2) Advocating for improved health and safety at swimming facilities, 3) Providing consultation and assistance to health departments, boards of health, legislatures, and other partners on MAHC uses, benefits, and implementation, 4) Providing consultation and assistance to the aquatics industry on uses, interpretation, and benefits of the MAHC, and 5) Soliciting, coordinating, and prioritizing MAHC research needs.
CDC and the CMAHC will work together closely to continue to incorporate national input into the MAHC and provide optimal guidance and assistance to public health officials and the aquatics sector.

# The MAHC Revision Process

# MAHC Revisions
Throughout the creation of the MAHC, the CDC accepted concerns and recommendations for modification of the MAHC from any individual or organization through two 60-day public comment periods via the email address MAHC@cdc.gov.

# Future Revisions
CDC realizes that the MAHC should be an evolving document that is kept up to date with the latest science, industry advances, and public health findings. As the MAHC is used and recommendations are put into practice, MAHC revisions will need to be made. As the future brings new technologies and new aquatic health issues, the CMAHC, with CDC participation, will institute a process for collecting national input that welcomes all stakeholders to participate in making recommendations to improve the MAHC so it remains comprehensive, easy to understand, and as technically sound as possible. These final recommendations will then be weighed by CDC for final incorporation into a new edition of the MAHC.
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# User Guide
The provisions of Chapter 4 (Design Standards and Construction) apply to construction of a new AQUATIC FACILITY or AQUATIC VENUE or SUBSTANTIAL ALTERATION to an existing AQUATIC FACILITY or AQUATIC VENUE, unless otherwise noted.
The provisions of Chapter 5 and 6 apply to all AQUATIC FACILITIES covered by this code regardless of when constructed, unless otherwise noted.

# Overview

# New Users
A new user will find it helpful to review the Table of Contents in order to quickly gain an understanding of the scope and sequence of subjects included in the CODE.

# Topic Presentations
MAHC provisions address essentially three areas:
- Design & Construction (Chapter 4),  Operation & Maintenance (Chapter 5),  Policies & Management (Chapter 6).
In addition, an overarching, scientifically referenced explanation of the MAHC as a risk reduction plan is provided in the Annex using the same numbering format for easy cross reference.

# MAHC Structure and Format

# Numbering System
The CODE follows a numeric outline format. The structural numbering system having different indent, font and color size in the document is as follows:
1.0 Chapter

# Annex

# Rationale
The annex is provided to:
1) Give further explanations of why certain recommendations are made; 2) Discuss rationale for making the MAHC content decisions;
3) Provide a discussion of the scientific basis for selecting certain criteria, as well as discuss why other scientific data may not have been selected, e.g. due to data inconsistencies; 4) State areas where additional research may be needed; 5) Discuss and explain terminology used; and 6) Provide additional material that may not have been appropriately placed in the main body of suggested MAHC recommendations. This would include summaries of scientific studies, charts, graphs, or other illustrative materials.

# Content
The annex was developed to support the MAHC Code language and is meant to provide additional help, guidance, and rationale to those responsible for using the MAHC. Statements in the annex are intended to be supplements and additional explanations. They are not meant to be interpreted as MAHC code wording or used to create enforceable code language.

# Bibliography
The Annex includes a list of CODES referenced, a bibliography of the reference materials, and scientific studies that form the basis for MAHC recommendations.

# Appendices
The Appendices supply additional information or tools that may be useful to the reader of the MAHC Annex and Code.
Glossary of Acronyms & Terms CODE 54 "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.

# Glossary of the MAHC Code and Annex

# Acronyms and Initialisms Used in This Code and Annex
"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.
"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. 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 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 five years old as well as therapy pools.

# Glossary of Acronyms & Terms CODE 57
- "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.
"Authority Having Jurisdiction" (AHJ) means an agency, organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, installations, or procedures.
"Automated Controller" means a system of at least one chemical probe, a controller, and auxiliary or integrated component that senses the level of one or more water parameters and provides a signal to other equipment to maintain the parameters within a user-established range.
"Available Chlorine" See "Chlorine"
"Backflow" means a hydraulic condition caused by a difference in water pressure that causes an undesirable reversal of the flow as the result of a higher pressure in the system than in its supply.
"Barrier" means an obstacle intended to prevent direct access from one point to another.
"Bather" means a person at an aquatic venue who has contact with water either through spray or partial or total immersion. The term bather as defined, also includes staff members, and refers to those users who can be exposed to contaminated water as well as potentially contaminate the water.
"Bather Count" means the number of bathers in an aquatic venue at any given time.
"Best Practice" means a technique or methodology that, through experience and research, has been proven to reliably lead to a desired result.
"Body of Water" (per NEC, q.v.) means any aquatic venue holding standing water, whether permanent or storable.
Glossary of Acronyms & Terms CODE 58 "Breakpoint Chlorination" means the conversion of inorganic chloramine compounds to nitrogen gas by reaction with Free Available Chlorine. When chlorine is added to water containing ammonia (from urine, sweat, or the environment, for example), it initially reacts with the ammonia to form monochloramine. If more chlorine is added, monochloramine is converted into dichloramine, which decomposes into nitrogen gas, hydrochloric acid and chlorine. The apparent residual chlorine decreases since it is partially reduced to hydrochloric acid. The point at which the drop occurs is referred to as the "breakpoint". The amount of free chlorine that must be added to the water to achieve breakpoint chlorination is approximately ten times the amount of combined chlorine in the water. As additional chlorine is added, all inorganic combined chlorine compounds disappear, resulting in a decrease in eye irritation potential and "chlorine odors."
"Bulkheads" means a movable partition that physically separates a pool into multiple sections.
"Chemical Storage Space" means a space in an aquatic facility used for the storage of pool chemicals such as acids, salt, or corrosive or oxidizing chemicals.
"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, the primary chlorine-based disinfecting agent, hypochlorite ion, and hydrochloric acid. Hypochlorous acid dissociation to hypochlorite ion is highly pH dependent. Chlorine is a general term used in the MAHC which refers to hypochlorous acid 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 (Cl 2 ) is defined as containing 100% available chlorine. The concentration of Available Chlorine in water is normally reported as mg/L (PPM) "as Cl 2 ", that is, the concentration is measured on a Cl 2 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 hypochlorous acid (HOCl) or hypochlorite ion (OCl -).The pH of the water determines the relative amounts of hypochlorous acid 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.
Glossary of Acronyms & Terms CODE 59 "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.
"Construction Joint" means a watertight joint provided to facilitate stopping places in the construction process. Construction joints also serve as contraction joints which control cracking.
"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 firesuppression 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 non-potable, used, unclean, polluted and contaminated water, or other substances to enter into a part of such potable water system under any condition.
"CT 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.

# Glossary of Acronyms & Terms CODE 60
"Deck" means surface areas serving the aquatic venue, including the perimeter/wet deck, pool deck, and dry 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/Wet Deck" means the hardscape surface area immediately adjacent to and within four 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 diaperchanging station.
"Dichloramine" means a disinfection by-product formed when chlorine binds to nitrogenous waste in pool water to form an amine-containing compound with two chlorine atoms (NHCl 2 ). It is a known acute respiratory and ocular irritant.
"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" 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" 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,
Glossary of Acronyms & Terms CODE 61 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 U.S. Environmental Protection Agency (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" 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.
"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" means a device for protection of personnel that deenergizes 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.

# Glossary of Acronyms & Terms CODE 62
"Hygiene Fixtures" means all components necessary for hygiene facilities including plumbing fixtures, diaper-changing 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 Section 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. 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.
"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. "Monitoring" is 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.
"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" 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.
"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
Glossary of Acronyms & Terms CODE 64 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 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 two 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

# "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.
Glossary of Acronyms & Terms CODE 66 "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, inpool 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.
- "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
Glossary of Acronyms & Terms CODE 67 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 non-flume 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.
"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 one 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
Glossary of Acronyms & Terms CODE 68 to achieve a specific CT 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 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. "Turnover" or "Turnover Rate" means the period of time, usually expressed in hours, required to circulate a volume of water equal to the capacity of the aquatic venue.
Glossary of Acronyms & Terms CODE 69 "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.
"UV Transmissivity" means the percentage measurement of ultraviolet light able to pass through a solution.
"Wading Pool" See "Pool." "Waterslide" See "Slide."
"Water Replenishment System" means a way to remove water from the pool as needed and replace with make-up water in order to maintain water quality. "Water Quality Testing Device" 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.

# Facility Design Standards and Construction
Plan Preparation All plans shall be prepared by a design professional who is registered or licensed to practice their respective design profession as defined by the state or local laws governing professional practice within the jurisdiction in which the project is to be constructed.
Required Statements All construction plans shall include the following statements:
1) "The proposed AQUATIC FACILITY and all equipment shall be constructed and installed in conformity with the approved plans and specifications or approved amendments," and

# Permit Issuance
The AHJ shall issue a permit to the owner to operate the AQUATIC 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.

# Permit Denial
The permit (license) to operate may be withheld, revoked or denied by the AHJ for noncompliance of the AQUATIC 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.
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.
Facility Design & Construction CODE 84

# Water Clarity
The water in an AQUATIC VENUE shall be sufficiently clear such that the bottom is visible while the water is static.
Observing Water Clarity To make this observation, a four inch x four inch square (10.2 cm x 10.2 cm) marker tile in a contrasting color to the POOL floor or main suction outlet shall be located at the deepest part of the POOL.

# Pools Over Ten Feet Deep
Visible This reference point shall be visible at all times at any point on the DECK up to 30 feet (9.1 m) away in a direct line of sight from the tile or main drain.
Spas For SPAS, this test shall be performed when the water is in a non-turbulent state and bubbles have been allowed to dissipate.
Bottom Slope

# Parameters and Variance
The bottom slope of a POOL shall be governed by the following parameters, but variances may be granted for special uses and situations so long as public SAFETY and health are not compromised.
Under Five Feet In water depths under five feet (1.5 m), the slope of the floor of all POOLS shall not exceed one foot (30.5 cm) vertical drop for every 12 feet (3.7 m) horizontal.
Over Five Feet In water depths five foot (1.5 m) and greater, the slope of the floors of all POOLS shall not exceed one foot (30.5 cm) vertical to three feet (0.9 m) horizontal, except that POOLS designed and used for competitive diving shall be designed to meet the STANDARDS of the sanctioning organization (such as NFSHSA, NCAA, USA Diving or FINA).
Drain POOLS shall be designed so that they drain without leaving puddles or trapped standing water.

# 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.

# 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 (10 8 OOCYSTS from an initial total number of 100 million ) OOCYSTS to a concentration of one OOCYST/100 mL. Cyanuric acid (CYA) and stabilized chlorine product use including:
1) Description of CYA and how chlorine is bound to it; 2) Description of CYA use via addition of stabilized chlorine compounds or addition of cyanuric acid alone; 3) Response curves showing the impact of CYA on stabilization of chlorine residuals in the presence of UV; 4) Dose response curves showing the impact of CYA on chlorine kill rates including the impact of CYA concentrations on diarrheal fecal incident remediation procedures; 5) Strategies for controlling the concentration of CYA; and 6) Strategies for reducing the concentration of CYA when it exceeds the maximum allowable level. 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. 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. 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.

# Circulation
Circulation including:
Facility Design & Construction CODE 85
Pool Access / Egress 4.5.3.1 Accessibility Each POOL shall have a minimum of two means of access and egress with the exception of:
1) WATERSLIDE LANDING POOLS, 2) WATERSLIDE RUNOUTS, and 3) WAVE POOLS.
Acceptable Means Acceptable means of access / egress shall include stairs / handrails, grab rails / RECESSED STEPS, ladders, ramps, swimouts, and zero-depth entries.
Large Venues For POOLS wider than 30 feet (9.1 m), such means of access / egress shall be provided on each side of the POOL, and shall not be more than 75 feet (22.9 m) apart.

# Stairs 4.5.4.1 Slip Resistant
Where provided, stairs shall be constructed with slip-resistant materials.

# Outlined Edges
The leading horizontal and vertical edges of stair treads shall be outlined with slipresistant contrasting tile or other permanent marking of not less than one inch (25.4 mm) and not greater than two inches (50.8 mm).
Deep Water Where stairs are provided in POOL water depths greater than five feet (1.5 m), they shall be recessed and not protrude into the swimming area of the POOL. the lowest tread shall be not less than four feet (1.2 m) below normal water elevation.
Rectangular Stairs Traditional rectangular stairs shall have a minimum uniform horizontal tread depth of 12 inches (30.5 cm), and a minimum unobstructed tread width of 24 inches (61.0 cm).  Stair Risers Stair risers shall have a minimum uniform height of six inches (15.2 cm) and a maximum height of 12 inches (30.5 cm), with a tolerance of 12 inches (12.7 mm) between adjacent risers. Stairs shall not be used underwater to transition between two sections of pool of different depths.
Facility Design & Construction CODE 86
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.
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. 4.5.5 Handrails 4.5.5.1 Provided Handrail(s) shall be provided for each set of stairs.
Corrosion-resistant Handrails shall be constructed of corrosion-resistant materials, and anchored securely.

# 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 Stairs wider than five feet (1.5 m) shall have at least one additional handrail for every 12 feet (3.7 m) of stair width.
Facility Design & Construction CODE 88 4.5.5. 5 ADA Accessibility Handrail outside dimensions intended to serve as a means of ADA accessibility shall conform to requirements of MAHC Section 4.5.5.7.
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. Hand rails shall be designed to transfer these loads through the supports to the POOL or DECK structure.
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. Grab rails shall be designed to transfer these loads through the supports to the POOL or DECK structure.
Recessed Steps 4.5.7.1 Slip-Resistant RECESSED STEPS shall be slip-resistant.
Easily Cleaned RECESSED STEPS shall be designed to be easily cleaned.
Drain RECESSED STEPS shall drain into the POOL.  Uniformly Spaced RECESSED STEPS shall be uniformly spaced not less than six inches (15.2 cm) and not more than 12 inches (30.5 cm) vertically along the POOL wall.
Facility Design & Construction CODE 90
Uppermost Step The top surface of the uppermost RECESSED STEP shall be located not more than 12 inches (30.5 cm) below the POOL coping or DECK.
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.

# Ladders 4.5.8.1 General Guidelines for Ladders

# Corrosion-Resistant
Where provided, ladders shall be constructed of corrosion-resistant materials.

# Anchored
Ladders shall be anchored securely to the DECK.

# Ladder Handrails

# Two Handrails Provided
Ladders shall have two handrails.

# Clear Space
The horizontal clear space between handrails shall be not less than 17 inches (43.2 cm) and not more than 24 inches (61.0 cm).

# Upper Railing
The upper railing surface of handrails shall extend above the POOL coping or DECK a minimum of 28 inches (71.7 cm).
Pool Wall The clear space between handrails and the POOL wall shall be not less than three inches (7.6 cm) and not more than six inches (15.2 cm).
Support Ladders 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. Ladders shall be designed to transfer these loads through the supports to the POOL or DECK structure.

# Ladder Treads
Slip Resistant Ladder treads shall be slip-resistant.
Tread Depth Ladder treads shall have a minimum horizontal tread depth of 1.5 inches (3.8 cm) and the distance between the horizontal tread and the POOL wall shall not be greater than four inches (10.2 cm).
Uniformly Spaced Ladder treads shall be uniformly spaced not less than seven inches (17.8 cm) and not more than 12 inches (30.5 cm) vertically at the handrails.
Upmost Ladder Tread The top surface of the upmost ladder tread shall be located not more than 12 inches (30.5 cm) below the POOL coping, gutter, or DECK.
Zero Depth (Sloped) Entries 4.5.9.1 Slip Resistant Where ZERO DEPTH ENTRIES are provided, they shall be constructed with slip-resistant materials.
Maximum Floor Slope ZERO DEPTH ENTRIES shall have a maximum floor slope of 1:12, consistent with the requirements of MAHC Section 4.5.2.2.
Slope Changes Changes in floor slope shall be permitted.
Trench Drains Trench drains shall be used along ZERO DEPTH ENTRIES at the waterline to facilitate surface skimming.
Flat or Follow Slope The trenches may be flat or follow the slope of the ZERO DEPTH ENTRY. White or Light Pastel Floors and walls below the water line shall be white or light pastel in color such that from the POOL DECK a BATHER is visible on the POOL floor and the following items can be identified:
1) Algae growth, debris or dirt within the pool, and 2) CRACKS in the surface finish of the POOL, and 3) Marker tiles defined in 4.5.1.2.

# Munsell Color Value
The finish shall be at least 6.5 on the Munsell color value scale.
Exceptions An exception shall be made for the following AQUATIC VENUE components:
1) Competitive lane markings, 2) Dedicated competitive diving well floors, 3) Step or bench edge markings, 4) POOLS shallower than 24 inches (61.0 cm), 5) Water line tiles, 6) WAVE POOL and SURF POOL depth change indicator tiles, or 7) Other approved designs.

# Darker Colors
Munsell color values less than 6.5 or designs such as rock formations may be permitted by the AHJ as long as the criteria in MAHC Section 4.5.11.1 are met. 4.5.12 Walls 4.5.12.1 Plumb POOL walls shall be plumb within a +/-three degree tolerance to a water depth of at least five feet (1.5 m), unless the wall design requires structural support ledges and slopes below to support the upper wall. Refer to MAHC Figure 4.5.12.4.
Facility Design & Construction CODE 94
Support Ledges and Slopes All structural support ledges and slopes of the wall shall fall entirely within a plane slope from the water line at not greater than a +/-three degree tolerance.
Contrasting Color A contrasting color shall be provided on the edges of any support ledge to draw attention to the ledge for BATHER SAFETY.
Rounded Corners All corners created by adjoining walls shall be rounded or have a radius in both the vertical and horizontal dimensions to eliminate sharp corners.
No Projections There shall be no projections from a POOL wall with the exception of structures or elements such as stairs, grab rails, ladders, handholds, PENINSULAS, WING WALLS, underwater lights, SAFETY ropes, WATERSLIDES, play features, other approved POOL amenities, UNDERWATER BENCHES, and UNDERWATER LEDGES as described in this section. Refer to MAHC Figure 4.5.12.4. Withstand Loads POOLS shall be designed to withstand the reasonably anticipated loads imposed by POOL water, BATHERS, and adjacent soils or structures.
Hydrostatic Relief Valve A hydrostatic relief valve and/or suitable under drain system shall be provided where the water table exerts hydrostatic pressure to uplift the pool when empty or drained.
Freezing POOLS and related circulation piping shall be designed with a winterizing strategy when in an area subject to freeze/thaw cycles.

# Handholds 4.5.14.1
Handholds Provided Where not otherwise exempted, every POOL shall be provided with handholds (perimeter gutter system, coping, horizontal bars, recessed handholds, cantilevered decking) around the perimeter of the POOL where the water depth at the wall exceeds 24 inches (61.0 cm).
Installed These handholds shall be installed not greater than nine inches (22.9 cm) above, or three inches (7.6 cm) below static water level.
Horizontal Recesses Horizontal recesses may be used for handholds provided they are a minimum of 24 inches (61.0 cm) long, a minimum of four inches (10.2 cm) high and between two inches (5.1 cm) and three inches (7.6 cm) deep.
Drain Horizontal recesses shall drain into the POOL.
Consecutive Recesses Horizontal recesses need not be continuous but consecutive recesses shall be separated by no more than 12 inches (30.5 cm) of wall.
Decking Where PERIMETER GUTTER SYSTEMS are not provided, a coping or cantilevered decking of reinforced concrete or material equivalent in strength and durability, with rounded, slipresistant edges shall be provided.
Facility Design & Construction CODE 96
Coping Dimensions The overhang for coping or cantilevered decking shall not be greater than two inches (50 mm) from the vertical plane of the POOL wall, nor less than one inch (2.5 cm).
Coping Thickness The overhang for coping or cantilevered decking shall not exceed 3.5 inches (8.9 cm) in thickness for the last two inches (5.1 cm) of the overhang.

# Infinity Edges
Perimeter Restrictions Not more than fifty percent (50%) of the POOL perimeter shall incorporate an INFINITY EDGE detail, unless an adjacent and PATRON accessible DECK space conforming to MAHC Section 4.8.1 is provided.

# Length
The length of an INFINITY EDGE shall be no more than 30 feet (9.1 m) long when in water depths greater than five feet (1.5 m).
Shallow Water No maximum distance is enforced for the length of INFINITY EDGES in shallow water five feet (1.5 m) and less.
Handholds Handholds conforming to the requirements of MAHC Section 4.5.14 shall be provided for INFINITY EDGES, which may be separate from, or incorporated as part of the INFINITY EDGE detail.
Construction Guidelines Where INFINITY EDGES are provided, they shall be constructed of reinforced concrete or other impervious and structurally rigid material(s), and designed to withstand the loads imposed by POOL water, BATHERS, and adjacent soils or structures.
Overflow Basins Troughs, basins, or capture drains designed to receive the overflow from INFINITY EDGES shall be watertight and free from STRUCTURAL CRACKS.
Finish Troughs, basins, or capture drains designed to receive the overflow from INFINITY EDGES shall have a non-toxic, smooth, and slip-resistant finish.
Maximum Height The maximum height of the wall outside of the INFINITY EDGE shall not exceed 30 inches (76.2 cm) to the adjacent grade and capture drain. Slip Resistant Where provided, UNDERWATER BENCHES shall be constructed with slip-resistant materials.
Outlined Edges The leading horizontal and vertical edges of UNDERWATER BENCHES shall be outlined with slip-resistant color contrasting tile or other permanent marking of not less than 34 inch (1.9 cm) and not greater than two inches (5.1 cm).
Maximum Water Depth UNDERWATER BENCHES may be installed in areas of varying depths, but the maximum POOL water depth in that area shall not exceed five feet (1.5 m).
Maximum Seat Depth The maximum submerged depth of any seat or sitting bench shall be 20 inches (50.8 cm) measured from the water line.

# Underwater Ledges
Slip Resistant Where UNDERWATER TOE LEDGES are provided to enable swimmers in deep water to rest or to provide structural support for an upper wall, they shall be constructed with slipresistant materials.
Protrude UNDERWATER TOE LEDGES for resting may be recessed or protrude beyond the vertical plane of the POOL wall, provided they meet the criteria for slip resistance and tread depth outlined in this section.
Five Feet or Greater UNDERWATER TOE LEDGES for resting shall only be provided within areas of a POOL with water depths of five feet (1.5 m) or greater.
Underwater Toe Ledge UNDERWATER TOE LEDGES must start no earlier than four lineal feet (1.2 m) to the deep side of the five foot (1.5 m) slope break.
Below Water Level UNDERWATER TOE LEDGES must be at least four feet (1.2 m) below static water level.
Structural Support UNDERWATER LEDGES for structural support of upper walls are allowed.
Facility Design & Construction CODE 98 4.5.17. 5 Outlined The edges of UNDERWATER TOE LEDGES shall be outlined with slip-resistant color contrasting tile or other permanent marking of not less than one inch (2.5 cm) and not greater than two inches (5.1 cm).
Visible If they project past the plane of the POOL wall, the edges of UNDERWATER TOE LEDGES shall be clearly visible from the DECK.
Tread Depths UNDERWATER TOE LEDGES shall have a maximum uniform horizontal tread depth of four inches (10.2 cm). See MAHC Figure 4.5.12.4.

# Underwater Shelves
Immediately Adjacent UNDERWATER SHELVES may be constructed immediately adjacent to water shallower than five feet (1.5 m).
Nosing UNDERWATER SHELVES shall have a slip-resistant, color contrasting nosing at the leading horizontal and vertical edges on both the top of horizontal edges and leading vertical edges and should be viewable from the DECK or from underwater.
Maximum Depth UNDERWATER SHELVES shall have a maximum depth of 24 inches (61.0 cm).

# Depth Markers and Markings
Depth Measurements Depth markers shall be located on the vertical POOL wall and positioned to be read from within the POOL.
Facility Design & Construction CODE 99

# Below Handhold
Where depth markings cannot be placed on the vertical wall above the water level, other means shall be used so that the markings will be plainly visible to persons in the POOL.
Coping or Deck Depth markers shall also be located on the POOL coping or DECK within 18 inches (45.7 cm) of the POOL structural wall or perimeter gutter.
Read on Deck Depth markers shall be positioned to be read while standing on the DECK facing the POOL.
Twenty-Five Foot Intervals Depth markers shall be installed at not more than 25 foot (7.6 m) intervals around the POOL perimeter edge and according to the requirements of this section. In addition, for water less than five feet (1.5 m) in depth, the depth shall be marked at one foot (30.5 cm) depth intervals.
Construction / Size

# Durable
Depth markers shall be constructed of a durable material resistant to local weather conditions.
Slip Resistant Depth markers shall be slip resistant when they are located on horizontal surfaces.
Color and Height Depth markers shall have letters and numbers with a minimum height of four inches (10. 2 cm) of a color contrasting with background.
Feet and Inches Depth markers shall be marked in units of feet and inches.

# Abbreviations
Abbreviations of "FT" and "IN" may be used in lieu of "FEET" and "INCHES."

# Abbreviations
Symbols for feet (') and inches (") shall not be permitted on water depth signs.

# Metric
Metric units may be provided in addition to-but not in lieu of-units of feet and inches.
Facility Design & Construction CODE 100
Tolerance Depth markers shall be located to indicate water depth to the nearest three inches (7.6 cm), as measured from the POOL floor three feet (0.9 m) out from the POOL wall to the gutter lip, mid-point of surface SKIMMER(s), or surge weir(s).
No Diving Markers 4.5.19.4.1 Depths For POOL water depths 5 feet (1.5 m) or shallower, all deck depth markers required by MAHC Section 4.5.19 shall be provided with "NO DIVING" warning signs along with the universal international symbol for "NO DIVING" "NO DIVING" warning signs and symbols shall be spaced at no more than 25 foot (7.6 m) intervals around the POOL perimeter edge.
Durable "NO DIVING" MARKERS shall be constructed of a durable material resistant to local weather conditions.
Slip Resistant "NO DIVING" MARKERS shall be slip-resistant when they are located on horizontal surfaces.
At Least Four Inches All lettering and symbols shall be at least four inches (10.2 cm) in height.
Depth Marking At Break in Floor Slope
Over Five Feet For POOLS deeper than five feet (1.5 m), a line of contrasting color, not less than two inches (5.1 cm) and not more than six inches (15.2 cm) in width, shall be clearly and permanently installed on the POOL floor at the shallow side of the break in the floor slope, and extend up the POOL walls to the waterline.
Durable Depth marking at break in floor slope shall be constructed of a durable material resistant to local weather conditions and be slip resistant.
Safety Rope One foot (30.5 cm) to the shallow water side of the break in floor slope and contrasting band, a SAFETY float rope shall extend across the POOL surface with the exception of WAVE POOLS, SURF POOLS, and WATERSLIDE LANDING POOLS.
Facility Design & Construction CODE 101
Dual Marking System Symmetrical AQUATIC VENUE designs with the deep point at the center may be allowed by providing a dual depth marking system which indicates the depth at the wall as measured in MAHC Section 4.5.19.3.1 and at the deep point.
Non-Traditional Aquatic Venues Controlled-access AQUATIC VENUES (such as activity pool, lazy rivers, and other venues with limited access) shall only require depth markers on a sign at points of entry.
Clearly Visible Depth marker signs shall be clearly visible to PATRONS entering the venue.
Lettering and Symbols All lettering and symbols shall be as required for other types of depth markers.
Wading Pool Depth Markers AQUATIC VENUES where the maximum water depth is six inches (15.2 cm) of water or less (such as WADING POOLS and ACTIVITY POOL areas) shall not be required to have depth markings or "No Diving" signage.
Movable Floor Depth Markers For AQUATIC VENUES with movable floors, a sign indicating movable floor and/or varied water depth shall be provided and clearly visible from the DECK.

# Vertical Measurement
The posted water depth shall be the water level to the floor of the AQUATIC VENUE according to a vertical measurement taken three 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.
Spas A minimum of two depth markers shall be provided regardless of the shape or size of the SPA as per MAHC Section 4.12.1.6.

# Aquatic Venue Shell Maintenance [N/
Outdoor Aquatic Venues Lighting as described in this subsection shall be provided for all outdoor AQUATIC VENUES open for use from 30 minutes before sunset to 30 minutes after sunrise, or during periods of natural illumination below the levels required in MAHC Section 4.6.1.3.1.

# Accessible
No lighting controls shall be accessible to PATRONS or BATHERS.
Windows / Natural Light Where natural lighting methods are used to meet the light level requirements of MAHC Section 4.6.1.3.1 during portions of the day when adequate natural lighting is available, one of the following methods shall be used to ensure that lights are turned on when natural lighting no longer meets these requirements: 1) Automatic lighting controls based on light levels or time of day, or 2) Written operations procedures where manual controls are used.
Light Levels POOL water surface and DECK light levels shall meet the following minimum maintained light levels:

# Aquatic Venue Illumination
Lighting shall illuminate all parts of the AQUATIC VENUE including the water, the depth markers, signs, entrances, restrooms, SAFETY equipment, and the required DECK area and walkways.
Underwater Lighting

# Minimum Requirements
Underwater lighting, where provided, shall be not less than eight initial rated lumens per square foot of POOL water surface area.

# 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.

# 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).
Glare Windows and any other features providing natural light into the POOL space and overhead or equivalent DECK lighting shall be designed or arranged to inhibit or reduce glare on the POOL water surface that would prevent seeing objects on the POOL bottom.
Indoor Aquatic Facility Ventilation

# Method to Determine
If a method to determine real-time actual occupancy is available, then the system may modulate to reduce outdoor air cubic feet per minute to meet the requirement for the actual occupancy for the associated time frame.

# Air Delivery Rate
The AIR HANDLING SYSTEM shall supply an air delivery rate as defined in ASHRAE Handbook -HVAC Applications 2011, Places of Assembly, Natatoriums.
Consistent Air Flow INDOOR AQUATIC FACILITY AIR HANDLING SYSTEM shall be designed to provide consistent air flow through all parts of the INDOOR AQUATIC FACILITY to preclude any stagnant areas.
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. The AIR HANDLING SYSTEM shall be designed to achieve several objectives including maintaining space conditions, delivering the outside air to the breathing area, and to flush the outside walls and windows, which can have the lowest surface temperature and therefore the greatest chance for condensation.
Negative Air Pressure AIR HANDLING SYSTEM air flow shall be designed to maintain negative air pressure in the INDOOR AQUATIC FACILITY relative to the areas external to it such as adjacent indoor spaces and outdoor ambient space).
Disinfection By-Product Removal Sufficient return air intakes shall be placed near AQUATIC VENUE surfaces such that they remove the highest concentration of airborne DISINFECTION BY-PRODUCT contaminated air.

# Airflow Across Water Surface
The AIR HANDLING SYSTEM shall be designed considering airflow across the water surface to promote removal of DISINFECTION BY-PRODUCTS.
Re-Entrainment of Exhaust AIR HANDLING SYSTEM outdoor air intakes shall be placed to minimize RE-ENTRAINMENT of exhaust air from building systems back into the facility.

# 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.
Purge The AIR HANDLING SYSTEM shall have the capability to periodically PURGE air for air quality maintenance or for emergency situations.
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 cubic feet per minute of outdoor air flowing into the INDOOR AQUATIC FACILITY at the time of commissioning; 2) The number of cubic feet per minute 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 Section 4.6.2.7.
Electrical Conduit Electrical conduit shall not enter or pass through 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 or, if allowed by the NEC.

# 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.

# 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.
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.
Pool Water Heating 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 heating-equipment 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.
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 Section 4.9.1 shall apply.
Exception Heaters listed and labeled for the atmosphere shall be acceptable without isolation from chemical fumes and vapors.
First Aid Area 4.6.5.1 Station Design Design and construction of new AQUATIC FACILITIES shall include an area designated for first aid equipment and/or treatment.
Emergency Exit 4.6.6.1 Labeling Gates and/or doors which will allow egress without a key shall be clearly and conspicuously labeled in letters at least four inches (10.2 cm) high "EMERGENCY EXIT."
Drinking Fountains
Provided A drinking fountain shall be provided inside an AQUATIC FACILITY.
Alternative Alternate locations or the use of bottled water shall be evaluated by the AHJ.
Common Use Area If the drinking fountain cannot be provided inside the AQUATIC FACILITY, it shall be provided in a common use building or area adjacent to the AQUATIC FACILITY entrance and on the normal path of BATHERS going to the AQUATIC FACILITY entrance.
Facility Design & Construction CODE 111
Readily Accessible The drinking fountain shall be located where it is readily accessible and not a hazard to BATHERS PER MAHC Section 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.
Deck When a spectator area or an access to a spectator area is located within the AQUATIC FACILITY ENCLOSURE, the DECK adjacent to the area or access shall provide egress width for the spectators in addition to the width required by MAHC Section 4.8.1.5.

# Additional Width
The additional width shall be based on the egress requirements in the applicable building CODE

# Openings
The BARRIER may have one or more openings directly into the BATHER areas.

# 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 A water RECIRCULATION SYSTEM consisting of one or more pumps, pipes, return INLETS, suction outlets, tanks, filters, and other necessary equipment shall be provided.
Combined Aquatic Venue Treatment

# Maintain and Measure
When treatment systems of multiple AQUATIC VENUES are combined, the design shall include all appurtenances to maintain and measure the required water characteristics including but not limited to flow rate, pH, and disinfectant concentration in each AQUATIC VENUE or AQUATIC FEATURE. When used, the SKIMMER SYSTEM shall be designed to handle up to 100% of the total recirculation flow rate chosen by the designer. SKIMMERS shall be so located as to provide effective skimming of the entire water surface.

# Secondary Disinfection

# 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.

# 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 four inches (10.2 cm). 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.

# Spaced
Outlets shall be equally spaced from the POOL side walls.

# Located
Outlets shall be located no less than three 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.

# Flow Distribution and Control

# 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. 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
All material used in the construction of strainers and screens shall be:
1) Nontoxic, impervious, and enduring, 2) Able to withstand design stresses, and 3) Designed to minimize friction losses. 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. All recirculation pumps shall be self-priming or flooded-suction. 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

# Flow Meters
A flow meter accurate to within +/-5% of the actual design flow shall be provided for each filtration system.

# Listed and Labeled
Flow meters shall be listed and labeled to NSF/ANSI Standard 50 by an ANSIaccredited 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.

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

# 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.

# Turnover Variance
The AHJ may grant a TURNOVER time variance for AQUATIC VENUES with extreme volume or operating conditions based on proper engineering justification.
Turnover Times TURNOVER times shall be calculated based solely on the flow rate through the filtration system. The required TURNOVER time shall be the lesser of the following options:
1) The specified time in MAHC 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.

# 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.
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 Section 4.7.1.10.6.1 through MAHC Section 4.7.1.10.6.2.

# 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. The system flowrate shall be based on ensuring the minimum water clarity required under MAHC Section 5.7.6 is met before opening to the public. 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: The granular media filter system shall have valves and piping to allow isolation, venting, complete drainage (for maintenance or inspections), and backwashing of individual filters.

# Filtration Accessories
Filtration accessories shall include the following items:
1) Influent pressure gauge, 2) Effluent pressure gauge , 3) Backwash sight glass or other means to view backwash water clarity, and 4) Manual air relief system.

# Listed
All filters shall be listed and labeled to NSF/ANSI 50 by an ANSI-accredited certification organization.

# Filter Location and Spacing

# Installed
Filters shall be installed with adequate clearance and facilities for ready and safe inspection, maintenance, disassembly, and repair.

# Media Removal
A means and access for easy removal of filter media shall be required. When a bed depth is less than 15 inches (38.1 cm), filters shall be designed to operate at no more than 12 gallons per minute per square foot (29 m/h).

# Backwash System Design
The granular media filter system shall be designed to backwash each filter at a rate of at least 15 gallons per minute per square foot (37 m/h) of filter bed surface area, unless explicitly prohibited by the filter manufacturer and approved at an alternate rate as specified in their NSF/ANSI 50 listing.

# Minimum Filter Media Depth Requirements
The minimum depth of filter media cannot be less than the depth specified by the manufacturer.
Differential Pressure Measurement Gauges Influent and effluent pressure gauges shall have the capability to measure up to a 20 pounds per square inch (138 KPa) increase in the differential pressure across the filter bed in increments of one pound per square inch (6.9 KPa) or less.
Coagulant Injection Equipment Installation If coagulant feed systems are used, they shall be installed with the injection point located before the filters as far ahead as possible, with electrical interlocks in accordance with MAHC Section 4.7.3.2.1.3.
Precoat Filters

# General

# Listed
All precoat, filters (i.e., pressure and vacuum) shall be listed and labeled to NSF/ANSI 50 by an ANSI-accredited certification organization. The design filtration rate for vacuum precoat filters shall not be greater than either:
1) 2 gallons per minute per square foot (4.9 m/h), or 2) 2.5 gallons per minute per square foot (6.1 m/h) when used with a continuous precoat media feed (commonly referred to as "body-feed").

# Pressure Precoat
The design filtration rate for pressure precoat filters shall not be greater than 2 gallons per minute per square foot (4.9 m/h) of effective filter surface area.

# Calculate
The filtration surface area shall be based on the outside surface area of the media with the manufacturer's recommended thickness of precoat media and consistent with their NSF/ANSI 50 listing and labeling.

# Precoat Media Introduction System Process
The precoat process shall follow the manufacturer's recommendations and requirements of NSF/ANSI Standard 50.

# Continuous Filter Media Feed Equipment

# Manufacturer Specification
If equipment is provided for the continuous feeding of filter media to the filter influent, the equipment shall be used in accordance with the manufacturer's specifications.

# Filter Media Discharge
All discharged filter media shall be handled in accordance with local and state laws, rules, and regulations.
Facility Design & Construction CODE 129
Cartridge Filters

# Listed
Cartridge filters shall be installed in accordance with the filter manufacturer's recommendations and listed and labeled to NSF/ANSI 50 by an ANSI-accredited certification organization.

# Filtration Rates
The design filtration rate for surface-type cartridge filter shall not exceed 0.30 gallons per minute per square foot (0.20 L/s/m 2 ).
Supplied and Sized Filter cartridges shall be supplied and sized in accordance with the filter manufacturer's recommendation for AQUATIC VENUE use.
Spare Cartridge One complete set of spare cartridges shall be maintained on site in a clean and dry condition.
Disinfection and pH Control All chemical feeders shall be provided with an automatic means to be disabled through an electrical interlock with at least two of the following:
1) Recirculation pump power, 2) Flow meter/flow switch in the return line, 3) Chemical control power and paddle wheel or flow cell on the chemical controller if safety test confirms feed systems are disabled through the controller when the pump is turned off, loses prime, or filters are backwashed.

# Installation
The chemical feeders shall be installed according to the manufacturer's instructions.

# Rates
The rates above are suggested minimums and in all cases the engineer shall validate the feed and production equipment specified.
Facility Design & Construction CODE 131

# Introduction of Chemicals

# Separation
The injection point of disinfection chemicals shall be located before any pH control chemical injection point with sufficient physical separation of the injection points to reduce the likelihood of mixing of these chemicals in the piping during periods of interruption of recirculation system flow.
Turnover Times TURNOVER times shall be calculated based solely on the flow rate through the filtration system.
Filtration System Inlets SPAS shall have a minimum of two adjustable filter system INLETS spaced at least three feet (0.9 m) apart and designed to distribute flow evenly.
Jet System Inlets

# Air Flow
Air flow shall be permitted through the jet system and/or when injected post-filtration.
Skimmer Submerged suction SKIMMERS shall be allowed provided that the manufacturer's recommendations for use are followed.
Open joints or gaps larger than 3/16 inches (4.8 mm) wide or with vertical elevations exceeding 14 inches (6.4 mm) shall be rectified using appropriate fillers.

# Sealants
The use of fillers such as caulk or sealant in joints or gaps shall be permitted for expansion and contraction and shall not be in violation of MAHC Section 4.8.1.1.3.

# Rounded Edges
All DECK edges shall be beveled, rounded, or otherwise relieved to eliminate sharp corners.
Minimize Cracks Joints in decking shall be provided to minimize the potential for CRACKS due to a change in elevation, for movement of the slab and for shrinkage control. Where applicable, the EXPANSION JOINT shall be designed and constructed so as to protect the coping and its mortar bed from damage as a result of movement of adjoining DECK.

# Watertight Expansion
All conditions between adjacent concrete PERIMETER DECK pours shall be constructed with watertight EXPANSION JOINTs.

# Joint Measurements
Joints shall be at least 3/16 inches (5 mm) in continuous width.

# Vertical Differential
The maximum allowable vertical differential across a joint shall be 14 inches (6.5 mm).
Steps and Guardrails
Higher than Twenty-One Inches Diving stands higher than 21 inches (53.3 cm) measured from the DECK to the top of the butt end of the board or platform shall have steps or a ladder and handrails.

# Self-Draining Treads
Steps or ladder treads shall be self-draining, corrosion resistant, non-slip, and designed to support the maximum expected load.
Short Platforms Diving stands or platforms that are one meter (3.4 ft) or higher must be protected with guard rails at least 30 inches (76.2 cm) above the board, extending at least to the edge of the water along with intermediate rails.
Tall Platforms Diving stands or platforms that are two meters (6.6 ft) or higher must have guard rails with the top rail at least 36 inches (0.9 m) above the board and a second rail approximately half the distance from the platform to the upper rail.
Facility Design & Construction CODE 154

# Emergency Communication Equipment
The AQUATIC FACILITY or each AQUATIC VENUE, as necessary, shall have a functional telephone or other communication device that is hard wired and capable of directly dialing 911 or function as the emergency notification system.

# 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 or devices 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 Section 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

# 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.
Facility Design & Construction CODE 157

# Lifeguard Chair and Stand Design
The chairs/stands must 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.

# UV Protection for Chairs and Stands
Where provided, permanently installed chairs/stands, where QUALIFIED LIFEGUARDS can be exposed to ultraviolet radiation, shall include protection from such ultraviolet radiation exposure. Where a required emergency egress path enters an area occupied by an outdoor AQUATIC VENUE, emergency exit pathways from the building(s) shall continue on DECK of least equally unencumbered width, and continue to the ENCLOSURE and through gates.

# Exit Pathways
Exit pathways shall be separated with a BARRIER from AQUATIC VENUES not in operation.

# Seasonal Separation
Seasonal separation may be employed at seasonally operated AQUATIC VENUES, subject to the same physical requirements of permanent barriers for AQUATIC VENUES.

# Windows
Windows on a building that forms part of an ENCLOSURE around an AQUATIC VENUE shall have a maximum opening width not to exceed four inches (10.2 cm).

# Opened
If designed to be opened, windows shall also be provided with a non-removable screen.

# 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. 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.

# Gates
Gates shall be at least equal in height at top and bottom to the BARRIER of which they are a component.
Turnstiles Turnstiles shall not form a part of an AQUATIC FACILITY ENCLOSURE.
Exit Gates EXIT GATES shall be conspicuously marked on the inside of the AQUATIC VENUE or AQUATIC FACILITY.

# Quantity, Location, and Width
Quantity, location, and width(s) for EXIT GATES shall be provided consistent with local building and fire CODES and applicable accessibility guidelines.
Swing Outward EXIT GATES shall swing away from the AQUATIC VENUE ENCLOSURE except where emergency egress CODES require them to swing into the AQUATIC VENUE ENCLOSURE.
Absence of Local Building Codes Where local building CODES do not otherwise govern, at least one EXIT GATE shall be required for each logical AQUATIC VENUE area including individual POOLS or grade levels or both.
Unguarded Pools For unguarded AQUATIC VENUES, self-latching mechanisms must be located not less than 3 12 feet (1.1 m) above finished grade.

# Operable by Children
For unguarded AQUATIC VENUES, self-latching mechanisms shall not be operable by small children on the outside of the ENCLOSURE around the AQUATIC VENUE.
Other Aquatic Venues For all other AQUATIC VENUES, EXIT GATES or doors shall be constructed so as to prevent unauthorized entry from outside of the ENCLOSURE around the AQUATIC VENUE.

# Securable
Indoor AQUATIC VENUES shall be securable from unauthorized entry from other building areas or the exterior.

# Indoor and Outdoor Aquatic Venues
Where separate indoor and outdoor AQUATIC VENUES are located on the same site, an AQUATIC VENUE ENCLOSURE shall be provided between them.

# Year-Round Operation
Exception: Where all AQUATIC VENUES are operated continuously 12 months a year on the same schedule.
Wall Separating For a passage through a wall separating the indoor portion of an AQUATIC VENUE from an outdoor portion of the same AQUATIC VENUE, the overhead clearance of the passage to the AQUATIC VENUE floor shall be at least six feet eight inches (2.0 m) to any solid structure overhead.
Multiple Aquatic Venues
One Enclosure Except as otherwise required in this CODE, one ENCLOSURE may surround multiple AQUATIC VENUES at one facility.
Wading Pools WADING POOLS shall not require separation from other WADING POOLS by a BARRIER. Refer to MAHC Section 4.12.9 for additional guidance about WADING POOLS.
Aquatic Venue Cleaning Systems

# No Hazard
The cleaning system provided shall not create an entanglement or suction entrapment hazard or interfere with the operation or use of the AQUATIC VENUE.
Common Cleaning Equipment If there are multiple AQUATIC VENUES at one AQUATIC FACILITY, the AQUATIC FACILITY may use common cleaning equipment.
Facility Design & Construction CODE 161
Integral Vacuum Systems Use of integral vacuum systems, meaning a vacuum system that uses the main circulating pump or a dedicated vacuum pump connect to the pool with PVC piping and terminating at the pool with a flush-mounted vacuum port fitting, shall be prohibited.

# GFCI Power
Where used, PORTABLE VACUUM cleaning equipment shall be powered by circuits having GROUND-FAULT CIRCUIT INTERRUPTERS.
Low Voltage Any ROBOTIC CLEANERS shall utilize low voltage for all components that are immersed in the POOL water.
GFCI Connection Any ROBOTIC CLEANER power supply shall be connected to a circuit equipped with a ground fault interrupter, and should not be operated using an extension cord.

# Nonabsorbent Material
The equipment area or room floor shall be of concrete or other suitable material having a smooth slip resistant finish and shall have positive drainage, including a sump drain pump if necessary.
Floor Slope Floors shall have a slope toward the floor drain and/or sump drain pump adequate to prevent standing water at all times.
Opening The opening to the EQUIPMENT ROOM or area shall be designed to provide access for all anticipated equipment.
Hose Bibb At least one hose bibb with BACKFLOW preventer shall be located in the EQUIPMENT ROOM or shall be accessible within an adequate distance of the EQUIPMENT ROOM so that a hose can service the entire EQUIPMENT ROOM.
Stored Outdoors If POOL chemicals, acids, salt, oxidizing cleaning materials, or other CORROSIVE or oxidizing chemicals are STORED outdoors, they shall be stored in a well-ventilated protective area with an installed BARRIER to prevent unauthorized access as per MAHC 4.9.2.3.

# Minimize Vapors
Where such materials must be stored in a building intended for occupancy, the transfer of chemical fumes and vapors from the CHEMICAL STORAGE SPACE to other parts of the building shall be minimized.
Dedicated Space At least one space dedicated to CHEMICAL STORAGE SPACE shall be provided to allow safe STORAGE of the chemicals present.
Eyewash In all CHEMICAL STORAGE SPACES in which pool chemicals will be STORED, an emergency eyewash station shall be provided.

# Outside
Eyewash stations may be provided outside of the CHEMICAL STORAGE SPACE as an alternative.

# AHJ Requirements
If more stringent requirements are dictated by the AHJ, then those shall govern and be applicable.
Facility Design & Construction CODE 168

# Construction

# Foreseeable Hazards
The construction of the CHEMICAL STORAGE SPACE shall take into account the foreseeable hazards.

# Protected
The construction of the CHEMICAL STORAGE SPACE shall, to the extent practical, protect the STORED materials against tampering, wild fires, unintended exposure to water, etc.

# Floor
The floor or DECK of the CHEMICAL STORAGE SPACE shall be protected against substantial chemical damage.
Minimize Fumes The construction and operation of a CHEMICAL STORAGE SPACE shall minimize the transfer of chemical fumes into any INTERIOR SPACE of a building intended for occupation.
Surfaces Any walls, floors, doors, ceilings, and other building surfaces of an interior CHEMICAL STORAGE SPACE shall join each other tightly.
No Openings There shall be no permanent or semi-permanent opening between a CHEMICAL STORAGE SPACE and any other INTERIOR SPACE of a building intended for occupation.
Exterior Chemical Storage Spaces

# Outdoor Equipment
Equipment listed for outdoor use may be located in an exterior CHEMICAL STORAGE SPACES as permitted.
Fencing Exterior CHEMICAL STORAGE SPACES not joined to a wall of a building shall be completely enclosed by fencing that is at least six feet (1.8 m) high and meets the non-climbability requirements of MAHC Section 4.8.6.2.1.
Gate Fencing shall be equipped with a self-closing and self-latching gate having a permanent locking device.
Facility Design & Construction CODE 169
Chemical Storage Space Doors

# Signage
All doors opening into CHEMICAL STORAGE SPACES shall be equipped with permanent signage:
1) Warning against unauthorized entry, and 2) Specifying the expected hazards, and 3) Specifying the location of the associated SDS forms, and 4) Product chemical hazard NFPA chart.

# Emergency Egress
Where a single door is the only means of egress from a CHEMICAL STORAGE SPACE, the door shall be equipped with an emergency-egress device.
Interior Door Where a CHEMICAL STORAGE SPACE door must open to an INTERIOR SPACE, spill containment shall be provided to prevent spilled chemicals from leaving the CHEMICAL STORAGE SPACE.
Equipment Space Where a CHEMICAL STORAGE SPACE door must open to an INTERIOR SPACE, the door shall not open to a space containing combustion equipment, air-handling equipment, or electrical equipment.
The manual ventilation switch shall be located outside the room and near the door to the ozone room.
Signage In addition to the signs required on all chemical storage areas, a sign shall be posted on the exterior of the entry door, stating "DANGER -GASEOUS OXIDIZER -OZONE" in lettering not less than four inches (10.2 cm) high.
Alarm System Rooms containing ozone generation equipment shall be equipped with an audible and visible ozone detection and alarm system.

# Requirements
The alarm system shall consist of both an audible alarm capable of producing at least 85 decibels at ten feet distance (3.0 m), and a visible alarm consisting of a flashing light mounted in plain view of the entrance to the ozone-EQUIPMENT ROOM.
Facility Design & Construction CODE 175

# Sensor
The ozone sensor shall be located at a height of 18-24 inches (45.7-61.0 cm) above floor level and shall be capable of measuring ozone in the range of 0-2 ppm.

# Ozone Concentration
The alarm system shall alarm when the ozone concentration equals or exceeds 0.1 ppm in the room.

# Activation
Activation of the alarm system shall shut off the ozone generating equipment and turn on the emergency ventilation system.

# Gaseous Chlorination Space
Existing Facilities MAHC Section 4.9.2.11 shall apply to existing facilities using compressed chlorine gas.
Adequate Size A gaseous-chlorination space shall be large enough to house the chlorinator, CHLORINE STORAGE tanks, and associated equipment as required.
Secure Tanks A gaseous-chlorination space shall be equipped with facilities for securing tanks.
Not Below Grade A gaseous-chlorination space shall not be located in a basement or otherwise be below grade.
Compressed-Chlorine Gas Where installed indoors, compressed-CHLORINE gas storage containers and associated chlorinating equipment shall be in a separate room constructed to have a fire rating of not less than 1-hour.
Entry Door The entry door to an indoor gaseous-CHLORINE space shall open to the exterior of the building or structure.

# Pool or Deck
The entry door to an indoor gaseous-CHLORINE space shall not open directly towards a POOL or DECK.
Facility Design & Construction CODE 176
Inspection Window An indoor gaseous-CHLORINE space shall be provided with a shatterproof gas-tight inspection window.
Ventilation Indoor gaseous-chlorination spaces shall be provided with a spark-proof ventilation system capable of 60 air changes per hour.

# Exhaust-Air Intake
The exhaust-air intake of the ventilation system shall be taken at a point within 6 inches (15.2 cm) of the floor, and on the opposite side of the room from the makeup-air intake.

# Discharge Point
The exhaust-air discharge point shall be:
1) Outdoors, and 2) Above adjoining grade level, and 3) At least 20 feet (6.1 m) from any operable window, and 4) At least 20 feet (6.1 m) from any adjacent building.

# Make-Up Intake
The make-up air intake shall be within 6 inches (15.2 cm) of the ceiling of the space and shall open directly to the outdoors.

# PPE Available
Personal protective equipment, consisting of at least a gas mask approved by NIOSH for use with CHLORINE atmospheres, shall be stored directly outside one entrance to an indoor gaseous-chlorination space.

# SCBA Systems
A minimum of 2 SCBA systems shall be on hand at all times and two QUALIFIED OPERATORS are to be involved in the changing of the tanks.

# Stationed Outside
One of the QUALIFIED OPERATORS should be stationed outside of the chemical room where the QUALIFIED OPERATOR inside can be seen at all times.

# Emergency Telephone
An emergency direct line telephone shall be located by the door.
Windows in Chemical Storage Spaces

# Not Required
Windows in CHEMICAL STORAGE SPACES shall not be required by this CODE.
Facility Design & Construction CODE 177
Requirements Where a window is to be installed in an interior wall, ceiling, or door of a CHEMICAL STORAGE SPACE, such window shall have the following components:
1) Tempered or plasticized glass, 2) A corrosion-resistant frame, and 3) Incapable of being opened or operated.
Exterior Window Any CHEMICAL STORAGE SPACE window in an exterior wall or ceiling shall.
1) Be mounted in a corrosion-resistant frame, and 2) Be so protected by a roof, eave, or permanent awning as to minimize the entry of rain or snow in the event of window breakage.
Sealing and Blocking Materials

# Minimize Leakage
Materials used for sealing and blocking openings in an interior CHEMICAL STORAGE SPACE shall minimize the leakage of air, vapors, or fumes from the CHEMICAL STORAGE SPACE.
Compatible Materials used for sealing and blocking openings in an interior CHEMICAL STORAGE SPACE shall be compatible for use in the environment.
Fire Rating Materials used for sealing and blocking openings in an interior CHEMICAL STORAGE SPACE shall be commensurate with the fire rating of the assembly in which they are installed.
Children Less than Five Years of Age An AQUATIC VENUE designed primarily for use by children less than five years of age shall have a drinking fountain, toilet, HAND WASH STATION, and DIAPER-CHANGING STATION located no greater than 200 feet (61 m) walking distance and in clear view from the nearest entry/exit of the AQUATIC VENUE.

# Design and Construction

# Floors
The floors of HYGIENE FACILITIES and dressing areas serving AQUATIC FACILITIES shall have a smooth, easy-to-clean, impervious-to-water, slip-resistant surface.
Floor Base A hard, smooth, impervious-to-water, easy-to-clean base shall provide a sealed, coved juncture between the wall and floor and extend upward on the wall at least six inches (15.2 cm).
Facility Design & Construction CODE 179
Floor Drains Floor drains shall be installed in HYGIENE FACILITIES 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.
Sloped to Drain Floors shall be sloped to drain water or other liquids.

# Accessible Routes
Where DECK areas serve as ACCESSIBLE ROUTES or portions thereof, slopes in any direction shall not exceed ADA Standards and MAHC Section 4.8.1.3.1.

# Partitions and Enclosures
Partitions and enclosures adjacent to HYGIENE FACILITIES shall have a smooth, easy-to clean, impervious surface.
Hose Bibb At least one hose bibb or other potable water source capable of connecting a hose shall be located in each HYGIENE FACILITY to facilitate cleaning.
Protected PLUMBING FIXTURES shall be installed and operated in a manner to adequately protect the potable water supply from back siphonage or BACKFLOW in accordance with local, state or federal regulation.
Easily Cleaned PLUMBING FIXTURES shall be designed so that they may be readily and frequently cleaned, SANITIZED, and disinfected.
Toilet Counts Total toilet or urinal counts shall be in accordance with applicable state and local CODES or as modified herein.
Hand Wash Sink Hand wash sink counts shall be in accordance with applicable state and local CODES or as modified herein.
Enclosed Entryways to private or group CLEANSING SHOWER areas shall be enclosed by a door or curtain.

# Doors
Shower doors shall be of a smooth, hard, easy-to-clean material.

# Curtains
Shower curtains shall be of a smooth, easy-to-clean material.
Soap Dispenser CLEANSING SHOWERS shall be supplied with soap and a soap dispenser adjacent to the shower.
Exemption AQUATIC VENUES located in lodging and residential settings shall be exempt from MAHC Section 4.10.4.2.
Rinse Showers

# Minimum and Location
A minimum of one RINSE SHOWER shall be provided on the DECK near an entry point to the AQUATIC VENUE.
Temperature Water used for RINSE SHOWERS may be at ambient temperature.
Facility Design & Construction CODE 181
Floor Sloped Floors of RINSE SHOWERS shall be sloped to drain wastewater away from the AQUATIC VENUE and meet local applicable CODES.
Large Aquatic Facilities RINSE SHOWERS in AQUATIC FACILITIES greater than 7500 square feet (697 m 2 ) of water surface area shall be situated adjacent to each AQUATIC VENUE entry point or arranged to encourage BATHERS to use the RINSE SHOWER prior to entering the AQUATIC VENUE.
Beach Entry A minimum of four showerheads per 50 feet (15.2 m) of beach entry AQUATIC VENUES shall be provided as a RINSE SHOWER.
Lazy River A minimum of one RINSE SHOWER shall be provided at each entrance to a LAZY RIVER AQUATIC VENUE.
Waterslide A minimum of one RINSE SHOWER shall be provided at each entrance to a waterslide queue line.
All Showers AQUATIC FACILITIES with 7500 square feet (697 m 2 ) of water area or more may be flexible in the number of CLEANSING

# Hand Wash Sink
The adjacent hand wash sink shall be installed and operational within one year from the date of the AHJ's adoption of the MAHC.
Trash Can A covered, hands-free, plastic-lined trash receptacle or diaper pail shall be located directly adjacent to the DIAPER-CHANGING UNIT.
Disinfecting Surface An EPA-registered DISINFECTANT shall be provided for maintaining a clean and disinfected DIAPER-CHANGING UNIT surface before and after each use.
Non-Plumbing Fixture Requirements

# Easy to Clean
All HYGIENE FIXTURES and appurtenances in the dressing area shall have a smooth, hard, easy-to-clean, impervious-to-water surface and be installed to permit thorough cleaning.
Glass Glass, excluding mirrors, shall not be permitted in HYGIENE FACILITIES.
Mirrors Mirrors shall be shatter resistant.
Lockers If lockers are provided, they shall be installed at least 3.5 inches (8.9 cm) above the finished floor or on legs or a base at least 3.5 inches (8.9 cm) high and far enough apart to allow for cleaning and drying underneath the locker.
Soap Dispensers Soap dispensers shall be securely attached adjacent to hand washing sinks and at each CLEANSING SHOWER. The dispensers shall be of all metal, plastic, or other shatterproof materials that can be readily and frequently cleaned.
Dryers / Paper Towels Hand dryers or paper towel dispensers shall be provided and securely attached adjacent to hand washing sinks.

# Materials
Hand dryers and paper towel dispensers shall be of all metal, plastic or other shatterproof materials that can be readily and frequently cleaned.

# Toilet Paper Dispensers
Toilet paper dispensers shall be securely attached to wall or partition adjacent to each toilet.
Female Facilities In female HYGIENE FACILITIES, covered receptacles adjacent to each toilet shall be provided for disposal of used feminine hygiene products.
Trash Can A minimum of one hands-free trash receptacle shall be provided in areas adjacent to hand washing sinks.
Refill Pool The water supply shall have sufficient capacity and pressure to refill the AQUATIC VENUE to the operating water level after backwashing filters and after any splashing or evaporative losses within one hour if the AQUATIC VENUE is operational at the time of the backwash.

# Fill Spout
Hazard If a fill spout is used at an AQUATIC VENUE, the fill spout shall be located so that it is not a SAFETY hazard to BATHERS.
Shielded A fill spout should be located so the possibility of it becoming a trip hazard is minimized.
Open End The open end of fill spouts shall not have sharp edges or protrude more than two inches (50.8 mm) beyond the edge of the POOL.
Facility Design & Construction CODE 185
Air Gap The open end shall be separated from the water by an air gap of at least 1.5 pipe diameters measured from the pipe outlet to the POOL. 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.

# Pool Wastewater
4.11.6.1 Discharged Wastewater from an AQUATIC VENUE, 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.

# Storm Water Systems and Surface Waters
Wastewater shall not be directed to storm water systems or surface waters without appropriate permits from the AHJ or the U.S. EPA.
Recovery and Reuse A water recovery and reuse system may be submitted to the AHJ for review and approval.
Ground Surface If a municipal sanitary sewer system is not available, wastewater from an AQUATIC VENUE may be discharged to the ground surface at a suitable location as approved by the AHJ, as long as the wastewater does not cause erosion, and does not create a threat to public health or SAFETY, a nuisance, or unlawful pollution of public waters.
Capacity The wastewater disposal system shall have sufficient capacity to receive wastewater without flooding when filters are cleaned or when the AQUATIC VENUE is drained.
Separation Tank for Precoat Media Filters A separation tank shall be provided prior to discharge for backwash water from precoat filters using diatomaceous earth (DE) as a filter medium.
Discharged For precoat filters using perlite or cellulose as a filter medium, the backwash may be discharged to the sanitary sewer, unless directed otherwise by the local AHJ.
Exercise Spas The water depth for exercise SPAS shall not exceed six feet six inches (2.0 m) measured from the designed static water line.

# Seating
The maximum submerged depth of any seat or sitting bench shall be 28 inches (71.1 cm) measured from the water line.
Handholds A SPA shall have one or more suitable, slip-resistant handhold(s) around the perimeter and not over 12 inches (30.5 cm) above the water line.

# Options
The handhold(s) may consist of bull-nosed coping, ledges or DECKS along the immediate top edge of the SPA; ladders, steps, or seat ledges; or railings.
Stairs Interior steps or stairs shall be provided where SPA depths are greater than 24 inches (61.0 cm).
Handrail Each set of steps shall be provided with at least one handrail to serve all treads and risers.
Seating Seats or benches may be provided as part of these steps.
Approach Steps Approach steps on the exterior of a SPA wall extending above the DECK shall also be required unless the raised SPA wall is 19 inches (48.3 cm) or less in height above the DECK and it is used as a transfer tier or pivot-seated entry.
Perimeter Deck A four foot (1.2 m) wide, continuous, unobstructed PERIMETER DECK shall be provided on two consecutive or adjacent sides or fifty percent or more of the SPA perimeter.
Lower Ratio The AHJ could consider a lower ratio upon review of an appropriate SAFETY PLAN that addresses adequate access.
Facility Design & Construction CODE 188
Coping The PERIMETER DECK may include the coping.
Recessed SPAS may be located adjacent to other AQUATIC VENUES as long as they are recessed in the DECK.
Elevated Spas Elevated SPAS may be located adjacent to another AQUATIC VENUE as long as there is an effective BARRIER between the SPA and the adjacent AQUATIC VENUE.
Minimum Distance If an effective BARRIER is not provided, a minimum distance of four feet (1.2 m) between the AQUATIC VENUE and SPA is required.
Depth Markers A minimum of two depth markers shall be provided regardless of the shape or size of the SPA.
Temperature Water temperatures shall not exceed 104F (40C).
Drain A means to drain the SPA shall be provided to allow frequent draining and cleaning.
Air Induction System An air induction system, when provided, shall prevent water back up that could cause electrical shock hazards.
Intake Air intake sources shall not permit the introduction of toxic fumes or other CONTAMINANTS.

# Timers
The agitation system shall be connected to a minute timer that does not exceed 15 minutes that shall be located out of reach of a BATHER in the SPA.
Emergency Shutoff All SPAS shall have a clearly labeled emergency shutoff or control switch for the purpose of stopping the motor(s) that provide power to the RECIRCULATION SYSTEM and hydrotherapy or agitation system that shall be installed and be readily accessible to the BATHERS, in accordance with the NEC.

# Recognized Standards
The following recognized design and construction standards for WATERSLIDES shall be adhered to.

# Engineer Compliance
The design engineer shall address compliance with these standards and must provide documentation and/or certification that the WATERSLIDE design is in conformance with these standards:

# Intersection
If a WATERSLIDE has two or more FLUMES and there is a point of intersection between the centerlines of any two FLUMES, the distance between that point and the point of exit for each intersecting FLUME must not be less than the slide manufacturer's recommendations and ASTM F2376.
Exit into Landing Pools
Water Level WATERSLIDES shall be designed to terminate at or below water level, except for DROP SLIDES or unless otherwise permitted by the WATERSLIDE manufacturer and ASTM F2376.
Perpendicular WATERSLIDES shall be perpendicular to the wall of the AQUATIC VENUE at the point of exit unless otherwise permitted by the WATERSLIDE manufacturer.
Exit System WATERSLIDES shall be designed with an exit system which shall be in accordance with the WATERSLIDE manufacturer's recommendations and ASTM F2376 and provides for safe entry into the LANDING POOL or WATERSLIDE RUNOUT.
Flume Exits The FLUME exits shall be in accordance with the WATERSLIDE manufacturer's recommendations and ASTM F2376.
Point of Exit The distance between the point of exit and the side of the AQUATIC VENUE opposite the BATHERS as they exit, excluding any steps, shall not be less than the WATERSLIDE manufacturer's recommendations and in accordance with ASTM F2376.
Landing Pools
Steps If steps are provided instead of exit ladders or RECESSED STEPS with grab rails, they shall be installed at the opposite end of the LANDING POOL from the FLUME exit and a handrail shall be provided.
Landing Area If the WATERSLIDE FLUME ends in a swimming POOL, the landing area shall be divided from the rest of the AQUATIC VENUE by a float line, WING WALL, PENINSULA or other similar feature to prevent collisions with other BATHERS.
Decks A PERIMETER DECK shall be provided along the exit side of the LANDING POOL.
Drop Slides

# Landing Area
There shall be a slide landing area in accordance with the slide manufacturer's recommendations and ASTM F2376.
Area Clearance This area shall not infringe on the landing area for any other slides, diving equipment, or any other minimum AQUATIC VENUE clearance requirements.
Steps Steps shall not infringe on this area.
Water Depth The minimum required water depth shall be a function of the vertical distance between the terminus of the slide surface and the water surface of the landing pool.

# Manufacturer's Recommendation
The minimum required water depth shall be in accordance with the slide manufacturer's recommendations and ASTM F2376.
Pool Slides

# Designed for Safety
All slides installed as an appurtenance to an AQUATIC VENUE shall be designed, constructed, and installed to provide a safe environment for all BATHERS utilizing the AQUATIC VENUE in accordance with applicable ASTM and CPSC STANDARDS.

# Non-Toxic
Components used to construct a POOL SLIDE shall be non-toxic and compatible with the environment contacted under normal use.
Facility Design & Construction CODE 192

# Water Depth
Water depth at the slide terminus shall be determined by the slide manufacturer.

# Pool Edge
Clear space shall be maintained to the POOL edge and other features per manufacturer requirements.

# Landing Area
The landing area of the slide shall be protected through the use of a float line, WING WALL, PENINSULA or other similar impediment to prevent collisions with other BATHERS.

# Prevent Bather Access
Netting or other barriers shall be provided to prevent BATHER access underneath POOL SLIDES where sufficient clearance is not provided.

# Additional Provisions
In addition to the general swimming POOL requirements stated in this CODE, WAVE POOLS shall comply with the additional provisions or reliefs of this section.

# Access
Access Point BATHERS must gain access to the WAVE POOL at the shallow or beach end with the exception of an allowable ADA designated entry point.

# Sides
The sides of the WAVE POOL shall be protected from unauthorized entry into the WAVE POOL by the use of a fence or other comparable BARRIER.
Facility Design & Construction CODE 193

# Handrails
Handrails as required by ADA for accessible entries shall be designed in such a way that they do not present a potential for injury or entrapment with WAVE POOL BATHERS.

# Perimeter Decks
A PERIMETER DECK shall not be required around 100% of the WAVE POOL perimeter.

# Wave Pool Access
A PERIMETER DECK shall be provided where BATHERS gain access to the WAVE POOL at the shallow or beach end and in locations where access is required for lifeguards.
Handholds WAVE POOLS shall be provided with handholds at the static water level or not more than six inches (15.2 cm) above the static water level.

# Continuous
These handholds shall be continuous around the WAVE POOL'S perimeter with the exception of at the ZERO DEPTH BEACH ENTRY, water depths less than 24 inches (61.0 cm), if this area is roped off not allowed for BATHER access.

# Self Draining
These handholds shall be self-draining.

# Flush
Handholds shall be installed so that their outer edge is flush with the WAVE POOL wall.

# Entangled
The design of the handholds shall ensure that body extremities will not become entangled during wave action.
Steps and Handrails RECESSED STEPS shall not be allowed along the walls of the WAVE POOL due to the entrapment potential.
Ladders Side wall ladders shall be utilized for egress only and shall be placed so they do not project beyond the plane of the wall surface.
Float Line WAVE POOLS shall be fitted with a float line located to restrict access to the caisson wall if required by the WAVE POOL equipment manufacturer.
Life Jackets Proper STORAGE shall be provided for life jackets and all other equipment used in the WAVE POOL that will allow for thorough drying to prevent mold and other biological growth.
Shut-Off Switch A minimum of two emergency shut-off switches to disable the wave action shall be provided, one on each side of the WAVE POOL.

# Labeled and Accessible
These switches shall be clearly labeled and readily accessible to QUALIFIED LIFEGUARDS.
No Diving Sign SAFETY rope and float lines typically required at shallow to deep water transitions shall not apply to WAVE POOLS.
Caution Signs Caisson BARRIERS shall be provided for all WAVE POOLS that prevent the passage of a four-inch (10.2 cm) ball.

# Slope
Floor slope may exceed one foot (30.5 cm) in 12 feet (3.7 m) for water shallower than five feet (1.5 m).
Break Points Break points in floor slope shall be identified with a contrasting band consistent with MAHC Section 4.5.4.2.
Hydrotherapy Hydrotherapy or jet systems shall be independent of the recirculation, filtration, and heating systems.
Special Equipment Special equipment may be allowed by the AHJ with proper justification.
Handhold A handhold in compliance with MAHC Section 4.5.5 shall be required on at least one side of the LAZY RIVER.
Deck A DECK shall be provided along the entire length of the LAZY RIVER.

# Alternate Sides
The DECK shall be allowed to alternate sides of the LAZY RIVER.

# Obstructions
Obstructions around the perimeter of the LAZY RIVER, such as bridges or landscaping, shall be allowed provided they do not impact lifeguarding, sight lines, or rescue operations.

# Bridges

# Entrapment
The design of a MOVEABLE FLOOR shall protect against BATHER entrapment between the MOVEABLE FLOOR and the POOL walls and floor.
Hydraulic Fluid If the MOVEABLE FLOOR is operated using hydraulics, the hydraulic compounds shall be listed as safe for use in POOL water in case there is a hydraulic leak. Additional Provisions In addition to the general AQUATIC VENUE requirements stated in this CODE, BULKHEADS shall comply with the additional provisions or reliefs of this section.

# Entrapment
The bottom of the BULKHEAD shall be designed so that a BATHER cannot be entrapped underneath or inside of the BULKHEAD.
Placement The BULKHEAD placement shall not interfere with the required water circulation in the POOL.
Fixed BULKHEADS shall be fixed to their operational position(s) by a tamper-proof system.
Gap The gap between the BULKHEAD and the POOL wall shall be no greater than 1.5 inches (3.8 cm).
Handhold The BULKHEAD shall be designed to afford an acceptable handhold as required in MAHC Section 4.5.14.
Entrances and Exits The proper number of entrances/exits to the POOL as required by MAHC section 4.5.3 shall be provided when the BULKHEAD is in place.
Guard Railings Guard railings at least 34 inches (86.4 cm) tall shall be provided on both ends of the BULKHEAD.
Width The width of the walkable area (total bulkhead width) of a BULKHEAD shall be greater than or equal to three feet and three inches (1.0 m).

# Facility Operation and Maintenance
The provisions of Chapter 5 apply to all AQUATIC FACILITIES covered by this CODE regardless of when constructed, unless otherwise noted.

# Operating Permits
Owner Responsibilities
Permit to Operate Required Prior to opening to the public, the AQUATIC FACILITY owner shall apply to the AHJ for a permit to operate.
Separate A separate permit is required for each newly constructed or SUBSTANTIALLY ALTERED AQUATIC VENUE at an existing AQUATIC FACILITY.
Prior to Issuance Before a permit to operate is issued, the following procedures shall be completed:
1) The AQUATIC FACILITY owner has demonstrated the AQUATIC FACILITY, including all newly constructed or SUBSTANTIALLY ALTERED AQUATIC VENUES, is in compliance with the requirements of this CODE, and 2) The AHJ has approved the AQUATIC FACILITY to be open to the public.
Permit Details The permit to operate shall:
1) Be issued in the name of the owner, 2) List all AQUATIC VENUES included under the permit, and 3) Specify the period of time approved by the AHJ.
Permit Expiration Permits to operate shall terminate according to the AHJ schedule.
Permit Renewal The AQUATIC FACILITY owner shall renew the permit to operate prior to the scheduled expiration of an existing permit to operate an AQUATIC FACILITY.
Permit Denial The permit to operate may be withheld, revoked, or denied by the AHJ for noncompliance of the AQUATIC FACILITY with the requirements of this CODE.
Facility Maintenance & Operation CODE 202
Owner Responsibilities The owner of an AQUATIC FACILITY is responsible for the facility being operated, maintained, and managed in accordance with the requirements of this CODE.
Operating Permits

# Permit Location
The permit to operate shall be posted at the AQUATIC FACILITY in a location conspicuous to the public.
Operating Without a Permit Operation of an AQUATIC FACILITY or newly constructed or SUBSTANTIALLY ALTERED AQUATIC VENUE without a permit to operate shall be prohibited.
Required Closure The AHJ may order a newly constructed or SUBSTANTIALLY ALTERED AQUATIC VENUE without a permit to operate to close until the AQUATIC FACILITY has obtained a permit to operate.

# Inspections
Preoperational Inspections

# Terms of Operation
The AQUATIC 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 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.

# Variances

# Variance Authority
The AHJ may grant a variance to the requirements of this CODE.
Facility Maintenance & Operation CODE 203
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 listed and labeled to ASTM F1346-91 by an ANSI-accredited certification organization shall be installed. 1) The water shall be recirculated and treated to meet the criteria of this CODE and the AQUATIC VENUE shall be staffed to keep bathers out, or 2) An approved SAFETY cover that is listed and labeled to ASTM F1346-91 by an ANSI-accredited certification organization shall be installed.

# Equipment Standards [N/

# 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 listed and labeled to ASTM F1346-91 by an ANSIaccredited certification organization shall be installed

# 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.
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.

# 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.
Facility Maintenance & Operation CODE 205
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.

# General Operations [N/
Repaired CRACKS shall be repaired when they may 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

# 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 Section 4.6.1.

# Main Drain Visible
The AQUATIC FACILITY shall not be open if light levels are such that the main drain is not visible from poolside.
Underwater Lighting Underwater lights, where provided, shall be operational and maintained as designed.
Cracked Lenses Cracked lenses that are physically intact on lights shall be replaced before the AQUATIC VENUE reopens to BATHERS.

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

# 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 Section 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.
Indoor Aquatic Facility Ventilation 5.6.2.1 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.
Facility Maintenance & Operation CODE 208
Indoor Facility Areas The AIR HANDLING SYSTEM operation and maintenance requirements shall apply to an INDOOR AQUATIC FACILITY including:
1) The AQUATIC VENUES, and 2) The surrounding BATHER and spectator/stadium seating area; But does not include:
1) Mechanical rooms, 2) Bath and locker rooms, and 3) Any associated rooms which have a direct opening to the AQUATIC FACILITY.
Ventilation Procedures THE INDOOR AQUATIC FACILITY owner/operator shall develop and implement a program of standard AIR HANDLING SYSTEM operation, maintenance, cleaning, testing, and inspection procedures with detailed instructions, necessary equipment and supplies, and oversight for those carrying out these duties, in accordance with the AIR HANDLING SYSTEM design engineer and/or manufacturer's recommendations.
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 AIR HANDLING SYSTEM design engineer and/or manufacturer original operating manuals, commissioning reports, updates, and specifications for any modifications at the facility.
Ventilation Monitoring The QUALIFIED OPERATOR shall monitor, log and maintain AIR HANDLING SYSTEM set-points and other operational parameters as specified by the AIR HANDLING SYSTEM design engineer and/or manufacturer.
Air Filter Changing The QUALIFIED OPERATOR(s) shall replace or clean, as appropriate, AIR HANDLING SYSTEM air filters in accordance with the AIR HANDLING SYSTEM design engineer and/or manufacturer's recommendations, whichever is most frequent.
Facility Maintenance & Operation CODE 209
Combined Chlorine Reduction The QUALIFIED OPERATOR shall develop and implement a plan to minimize combined CHLORINE compounds in the INDOOR AQUATIC FACILITY from the operation of AQUATIC VENUES.
Building Purge Plan The QUALIFIED OPERATOR shall develop and implement an air quality action plan with procedures for PURGING the INDOOR AQUATIC FACILITY for chemical emergencies or other indicators of poor air quality.
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.

# Electrical

# 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.

# Electrical Receptacles

# New Receptacles
The installation of new electrical receptacles shall be subject to electrical-construction requirements of this CODE and applicable local CODE.
Facility Maintenance & Operation CODE 210
Repairs Repairs or maintenance to existing receptacles shall maintain compliance with the NEC and with 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.
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.
Permanent Facilities For permanent AQUATIC FACILITIES, required GFCI devices shall be tested monthly as part of scheduled maintenance.
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

# 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.
Facility Maintenance & Operation CODE 211
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 the this task.
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.

# Bonding

# 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 AQUATIC VENUE shall not be used by BATHERS while bonding conductors are disconnected.
Removable Covers Removable covers protecting bonding conductors, e.g. at ladders, shall be kept in place except during bonding conductor inspections, repair, or replacement.
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.
Facility Maintenance & Operation CODE 212
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

# 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 six feet (1.8 m) away when measured along the shortest possible path from a BODY OF WATER during times when the AQUATIC FACILITY is open.

# Exception
An extension cord may be used within six 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.

# GFCI Protection
The circuit supplying an extension cord shall be protected by a GFCI device when the extension cord is to be used within six 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.
Compliance The use of extension cords shall comply with CFR 1910.304.
Portable Electric Devices Portable line-powered electrical devices, such as radios or drills, shall not be used within six feet (1.8 m) horizontally of the nearest inner edge of a BODY OF WATER, unless connected to a GFCI-protected circuit.

# Communication Devices and Dispatch Systems
The maintenance and repair of Communication Devices and Dispatch Systems shall preserve compliance with the NEC.
Facility Maintenance & Operation CODE 213
Facility Heating

# Facility Heating

# Maintenance and Repair
Maintenance, repairs, and alterations to facility-heating equipment shall preserve compliance with applicable CODES.
Defects Defects in the AQUATIC FACILITY heating equipment shall be immediately repaired.
Temperature Air temperature of an INDOOR AQUATIC FACILITY shall be controlled to the original specifications or in the absence of such, 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.
Combustion Device Items shall not be stored within the COMBUSTION DEVICE manufacturer's specified minimum clearance distance.
Water Heating Maintenance, repairs, and alterations to POOL-water heating equipment shall preserve compliance with applicable CODES.

# First Aid Room 
5.6.6 Emergency Exit 5.6.6.1 Exit Routes Emergency exit routes shall be established for both INDOOR FACILITIES and OUTDOOR FACILITIES and be maintained so that they are well lit, unobstructed, and accessible at all times.

# Plumbing
5.6.7.1 Water Supply
Water Pressure All plumbing shall be maintained in good repair with no leaks or discharge.
Availability Potable water shall be available at all times to PATRONS.
Facility Maintenance & Operation CODE 214

# Cross-Connection Control
Water introduced into the pool , either directly or to the recirculation system, shall be supplied through an air gap or by another method which will prevent backflow and back siphonage.
Drinking Fountains
Good Repair Drinking fountains shall be in good repair.
Clean Drinking fountains shall be clean.
Catch Basin Drinking fountains shall be adjusted so that water does not go outside the catch basin.
Contamination Drinking fountains shall provide an angled jet of water and be adjusted so that the water does not fall back into the drinking water stream.
Water Pressure Drinking fountains shall have sufficient water pressure to allow correct adjustment.
Waste Water
Waste Water Disposal AQUATIC VENUE waste water, including backwash water and cartridge cleaning water, shall be disposed of in accordance with local CODES.
Drainage Waste water and backwash water shall not be returned to an AQUATIC VENUE or the AQUATIC FACILITY'S water treatment system.
Drain Line Filter backwash lines, DECK drains, and other drain lines connected to the AQUATIC FACILITY or the AQUATIC FACILITY RECIRCULATION SYSTEM shall be discharged through an approved air gap.
No Standing Water No standing water shall result from any discharge, nor shall they create a nuisance, offensive odors, stagnant wet areas, or create an environment for the breeding of insects.
Facility Maintenance & Operation CODE 215
Water Replenishment

# Volume
Removal of water from the POOL and replacement with make-up water shall be performed as needed to maintain water quality.
Discharged A volume of water totaling at least four gallons (15 L) per BATHER per day per AQUATIC VENUE shall be either:
1) Discharged from the system, or 2) Treated with an alternate system meeting the requirements of MAHC Section 4.7.4 and reused.

# Backwash Water
The required volume of water to be discharged may include backwash water.

# Multi-System Facilities
In multi-RECIRCULATION SYSTEM facilities, WATER REPLENISHMENT shall be proportional to the number of BATHERS in each system.
Solid Waste

# Storage Receptacles

# Good Repair and Clean
Outside waste and recycling containers shall be maintained in good repair and clean condition.
Areas Outside waste and recycling STORAGE areas shall be maintained in good repair and clean condition.

# Disposal
Frequency Solid waste and recycled materials shall be removed at a frequency to prevent attracting vectors or causing odor.
Local Code Compliance Solid waste and recycled materials shall be disposed of in compliance with local CODES.
Facility Maintenance & Operation CODE 216

# Decks

# Food Preparation and Consumption

# Preparation
Food preparation and cooking shall only be permitted in designated areas as specified in this CODE.
Eating and Drinking BATHERS shall not eat or drink while in or partially in the AQUATIC VENUE water except in designated areas.

# Swim-Up Bars
Swim-up bars, when utilized, shall provide facilities for bathers to place food and drinks on a surface which can be SANITIZED.

# Glass

# Containers
Glass food and beverage containers shall be prohibited in PATRON areas of AQUATIC FACILITIES.
Furniture Glass furniture shall not be used in an AQUATIC FACILITY.

# Deck Maintenance

# Free From Obstructions
The PERIMETER DECK shall be maintained free from obstructions, including PATRON seating, to preserve space required for lifesaving and rescue.
Diaper Changing Diaper changing shall only be done at a designated DIAPER-CHANGING STATION.

# Prohibited
Diaper changing shall be prohibited on the DECK.
Vermin DECK areas shall be cleaned daily and kept free of debris, vermin, and vermin harborage.
Original Design DECK surfaces shall be maintained to their original design slope and integrity.
Facility Maintenance & Operation CODE 217

# Crack Repair
CRACKS shall be repaired when they may increase the potential for:
1) Trips or falls, 2) Lacerations, or 3) Impact the ability to properly clean and maintain the DECK area.
Standing Water DECK areas shall be free from standing water.
Drains DECK drains shall be cleaned and maintained to prevent blockage and pooling of water.
Wet Areas Wet areas shall not have absorbent materials that cannot be removed for cleaning and DISINFECTION daily.
Circulation Path Fixed equipment, loose equipment, and DECK furniture shall not intrude upon the AQUATIC VENUE CIRCULATION PATH.

# Aquatic Facility Maintenance
All appurtenances, features, signage, safety and other equipment, and systems required by this CODE shall be provided and maintained.
Diving Boards and Platforms

# Slip-Resistant Finish
The finish and profile of surfaces of diving boards and platforms shall be maintained to prevent slips, trips, and falls.
Loose Bolts and Cracked Boards Diving boards shall be inspected daily for CRACKS and loose bolts with CRACKED boards removed and loose bolts tightened immediately.
Steps and Guardrails

# Immovable
Steps and guardrails shall be secured so as not to move during use.

# Maintenance
The profile and surface of steps shall be maintained to prevent slips and falls.
Facility Maintenance & Operation CODE 218

# Starting Platforms
The profile and surface of starting platform steps shall be in good repair to prevent slips, trips, falls, and pinch hazards.

# Waterslides
5.6.10.4.1 Maintenance WATERSLIDES shall be maintained and operated to manufacturer's/designer's specifications.
Slime and Biofilm Slime and biofilm layers shall be removed on all accessible WATERSLIDE surfaces.
Flow Rates WATERSLIDE water flow rates shall be checked to be within designer or manufacturer's specifications prior to opening to the public.
Disinfectant Where WATERSLIDE plumbing lines are susceptible to holding stagnant water, WATERSLIDE pumps shall be started with sufficient time prior to opening to flush such plumbing lines with treated water.

# Water Testing
The water shall be tested to verify the disinfectant in the water is within the parameters specified in MAHC Section 5.7.3.1.1.2.
Fencing and Barriers 5.6.10.5.1 Maintenance Required fencing, BARRIERS, and gates shall be maintained at all times.
Tested Daily Gates, locks, and associated alarms, if required, shall be tested daily prior to opening.
Aquatic Facility Cleaning

# Cleaning
The AQUATIC VENUE shall be kept clean of debris, organic materials, and slime/biofilm in accessible areas in the water and on surfaces.
Vacuuming Vacuuming shall only be done when the AQUATIC VENUE is closed.
Facility Maintenance & Operation CODE 219
Port Openings Vacuum port openings shall be covered with an approved device cover when not in use.

# Damaged
POOLS with missing or damaged vacuum port openings shall be closed and repairs made before re-opening.

# Recirculation and Water Treatment

# Recirculation Systems and Equipment

# General

# Continuous Operation
All components of the filtration and RECIRCULATION SYSTEMS shall be kept in continuous operation 24 hours per day.

# Reduced Flowrates
The system flowrate shall not be reduced more than 25% lower than the minimum design requirements and only reduced when the POOL is unoccupied.

# System Design
The flow turndown system shall be designed as specified in MAHC Sections 4.7.1.10.6.1 to 4.7.1.10.6.2.

# Water Clarity
The system flowrate shall be based on ensuring the minimum water clarity required under MAHC Section 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.

# Flow
Flow through the various components of a RECIRCULATION SYSTEM shall be balanced according to the provisions outlined in MAHC Section 5.7.1 to maximize the water clarity and SAFETY of a POOL.
Gutter / Skimmer Pools For gutter or SKIMMER POOLS with main drains, the required recirculation flow shall be as follows during normal operation: 1) At least 80% of the flow through the perimeter overflow system, and 2) No greater than 20% through the main drain.
Facility Maintenance & Operation CODE 220
Combined Venue Treatment Each individual AQUATIC VENUE in a combined treatment system shall meet required TURNOVER times specified in MAHC Section 5.7.1.9 and achieve all water quality criteria (including, but not limited to, pH, disinfectant concentration, and water clarity/turbidity).
Inlets Inlets shall be checked at least weekly for rate and direction of flow and adjusted as necessary to produce uniform circulation of water and to facilitate the maintenance of a uniform disinfectant residual throughout the pool.
Surface Skimming Devices

# Perimeter Overflow
The PERIMETER OVERFLOW SYSTEMS shall be kept clean and free of debris that may restrict flow.
Automatic Fill System The automatic fill system, when installed, shall maintain the water level at an elevation such that the gutters must overflow continuously around the perimeter of the POOL.

# Skimmer Water Levels
The water levels shall be maintained near the middle of the SKIMMER openings.

# Flow
The flow through each SKIMMER shall be adjusted to maintain skimming action that will remove all floating matter from the surface of the water.

# Strainer Baskets
The strainer baskets for SKIMMERS shall be cleaned as necessary to maintain proper skimming.
Weirs Weirs shall remain in place and in working condition at all times.

# Broken or Missing Weirs
Broken or missing SKIMMER weirs shall be replaced immediately.

# Flotation Test
A flotation test may be required by the AHJ to evaluate the effectiveness of surface skimming.
Facility Maintenance & Operation CODE 221
Submerged Drains/Suction Outlet Covers or Gratings

# Replaced
Loose, broken, or missing suction outlet covers and sumps shall be secured or replaced immediately and installed in accordance with the manufacturer's requirements.

# Closed
POOLS shall be closed until the required repairs can be completed.

# Close/Open Procedures
AQUATIC FACILITIES shall follow procedures for closing and re-opening whenever required as outlined in MAHC Section 5.4.1.

# Documentation
The manufacturer's documentation on all outlet covers and sumps shall be made part of the permanent records of the AQUATIC FACILITY.
Piping  See Annex discussion.
Strainers & Pumps Strainers shall be in place and cleaned as required to maintain pump performance.
Flow Meters Flow meters in accordance with MAHC Section 4.7.1.9.1 shall be provided and maintained in proper working order.
Flow Rates / Turnovers 5.7.1.9.1 New Construction or Substantially Altered Venues AQUATIC VENUES constructed or substantially altered after the adoption of this code shall be operated at the designed flow rate to provide the required TURNOVER RATE 24-hours per day except as allowed in MAHC Section 4.7.1.10.
Construction Before Adoption of this Code AQUATIC VENUES constructed before the adoption of this code shall be operated 24 hours per day at their designed flow rate.

# Filtration
Filters and filter media shall be listed and labeled to NSF/ANSI 50 by an ANSIaccredited certification organization. Filters shall be backwashed, cleaned and maintained according to the manufacturer's instructions.
Facility Maintenance & Operation CODE 222
Granular Media Filters

# Filtration Rates
High-rate granular media filters shall be operated at no more than 15 gallons per minute per square foot (36.7 m/h) when a minimum bed depth of 15 inches (38.1 cm) is provided per manufacturer's instructions.

# Less than Fifteen Inch Bed Depth
When a bed depth is less than 15 inches (38.1 cm), filters shall operate at no more than 12 gallons per minute per square foot (29.3 m/h).

# Backwashing Rates
The granular media filter system shall be backwashed at a rate of at least 15 gallons per minute per square foot (36.7 m/h) of filter bed surface area as per MAHC Section 4.7.2.2.3.2, unless explicitly prohibited by the filter manufacturer and/or approved at an alternate rate as specified in the NSF/ANSI 50 listing.
Clear Water Backwashing should be continued until the water leaving the filter is clear.
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.

# Backwash Scheduling
Backwashes shall be scheduled to take place when the AQUATIC VENUE is closed for BATHER use.

# 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.
Facility Maintenance & Operation CODE 223
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.
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.

# Approved
The media shall be listed and labeled to NSF/ANSI 50 by an ANSI-accredited certification organization for use in the filter.

# 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 listed and labeled to NSF/ANSI 50 by an ANSI-accredited certification organization to return water to the POOL during the precoat process.
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 listed and labeled to NSF/ANSI 50 by an ANSIaccredited 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 must 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.
Facility Maintenance & Operation CODE 224
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.
Bumping Bumping a precoat filter shall be performed in accordance with the manufacturer's recommendations.
Filter Media

# 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

# NSF Standards
Cartridge filters shall be operated in accordance with the filter manufacturer's recommendation and be listed and labeled to NSF/ANSI 50 by an ANSI-accredited certification organization.

# 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 gallons per minute 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.
Facility Maintenance & Operation CODE 225
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.
Facility Maintenance & Operation CODE 230

# 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.

# Employees Trained
All employees shall be properly trained in the operation and maintenance of the equipment.

# Copper / Silver Ions

# EPA Registered
Only those systems that are EPA-REGISTERED for use as sanitizers or disinfectants in AQUATIC VENUES or SPAS in the United States are permitted.

# Concentrations
Copper and silver concentrations shall not exceed 1.3 PPM (MG/L) for copper and 0.10 PPM (MG/L) for silver for use as disinfectants in AQUATIC VENUES and SPAS in the United States.

# Free Available Chlorine and Bromine Levels
FREE AVAILABLE CHLORINE or bromine levels shall be maintained in accordance with MAHC Section 5.7.3.1.1 or 5.7.3.1.2, respectively.
Other Sanitizers, Disinfectants, or Chemicals Other sanitizers, disinfectants, or chemicals used must:
1) Be U.S. EPA-REGISTERED under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and, 2) Not create a hazardous condition or compromise disinfectant efficacy when used with required bromine or CHLORINE concentrations, and 3) Not interfere with water quality measures meeting all criteria set forth in this CODE.
Chlorine Dioxide CHLORINE dioxide shall only be used for remediation for water quality issues when the AQUATIC VENUE is closed and BATHERS are not present.

# Safety Considerations
SAFETY training and SAFETY precautions related to use of CHLORINE dioxide shall be in place.

# Clarifiers, Flocculants, Defoamers
Clarifiers, flocculants, and defoamers shall be used per manufacturer's instructions.
Facility Maintenance & Operation CODE 231

# pH

# pH levels
The pH of the water shall be maintained between 7.2 and 7.8.
Approved Substances Approved substances for pH adjustment shall include but not be limited to muriatic (hydrochloric) acid, sodium bisulfate, carbon dioxide, sulfuric acid, sodium bicarbonate, and soda ash.
Feed Equipment

# Acceptable Chemical Delivery
Acceptable disinfectant and pH control chemicals shall be delivered through an automatic chemical feed system upon adoption of this code.

# Dedicated and Labeled Components
All chemical feed system components must be dedicated to a single chemical and clearly labeled to prevent the introduction of incompatible chemicals.

# Installed and Interlocked
Chemical feed system components shall be installed and interlocked so it cannot operate when the RECIRCULATION SYSTEM is in low or no flow circumstances as per MAHC Section 4.7.3.2.1.3.

# 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.

# 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.

# Facility Maintenance & Operation CODE 232

# 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.

# Liquid Solution Feeders
For liquid solution feeders, spare feeder tubes (or tubing) shall be maintained onsite for peristaltic pumps.
Checked Daily Tubing and connections shall be checked on a daily basis for leaks.

# Routed
All chemical tubing that runs through areas where staff walk shall be routed in PVC piping to support the tubing and to prevent leaks.

# Size
The double containment PVC pipe shall be of sufficient size to allow for easy replacement of tubing.

# Turns
Any necessary turns in the piping shall be designed so as to prevent kinking of the tubing.

# Gas Feed Systems
The Chlorine Institute requirements for safe STORAGE and use of CHLORINE gas shall be followed.
Carbon Dioxide Carbon dioxide feed shall be permitted to reduce pH.

# Facility Maintenance & Operation CODE 233

# Controlled
Carbon dioxide feed shall be controlled using a gas regulator.

# Alarm Monitor
CO 2 /O 2 monitor and alarm shall be maintained in working condition.

# Forced Ventilation
Carbon dioxide is heavier than air, so forced ventilation shall be maintained in the STORAGE room.
Testing for Water Circulation and Quality
Available WATER QUALITY TESTING DEVICES (WQTDs) for the measurement of disinfectant residual, pH, alkalinity, CYA (if used), and temperature, at a minimum, shall be available on site.

# Expiration Dates
WQTDs utilizing reagents shall be checked for expiration at every use and the date recorded.

# Store
WQTDs shall be stored in accordance with manufacturer's instructions.
Temperature Chemical testing reagents shall be maintained at proper manufacturer specified temperatures.
Calibration WQTDs that require calibration shall be calibrated in accordance with manufacturer's instructions and the date of calibration recorded.
Automated Controllers and Equipment Monitoring

# Use of Controller
A automated controller capable of measuring the disinfectant residual (FREE AVAILABLE chlorine or bromine) or surrogate such as ORP shall be used to maintain the disinfectant residual in AQUATIC VENUES as outlined in MAHC Section 4.7.3.2.8.

# Installed
An AUTOMATED CONTROLLER shall be required within one year from time of adoption of this CODE.

# Interlocked
AUTOMATED CONTROLLERS shall be interlocked per MAHC Section 4.7.3.2.1.3 upon adoption of this code if existing or upon installation if not existing.
Facility Maintenance & Operation CODE 234

# Sampling
The sample line for all probes shall be upstream from all primary, secondary, and supplemental DISINFECTION injection ports or devices.
Monitor AUTOMATED CONTROLLERS shall be monitored at the start of the operating day to ensure proper functioning.
In Person AUTOMATED CONTROLLERS shall be monitored in person by visual observation.
Activities MONITORING shall include activities recommended by manufacturers, including but not limited to alerts and leaks.
Replacement Parts Only manufacturer-approved OEM replacement parts shall be used.
Calibration AUTOMATED CONTROLLERS shall be calibrated per manufacturer directions.
Ozone System When an ozone system is utilized as a SECONDARY DISINFECTION SYSTEM, the system shall be monitored and data recorded at a frequency consistent with MAHC Table 5.7.3.7.7. At the time the ozone generating equipment is installed, again after 24 hours of operation, and annually thereafter, the air space within six 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.
UV Systems When a UV system is utilized for secondary disinfection, the system shall be monitored and data recorded at a frequency consistent with MAHC Table 5.7.3.7.8.
Water Sample Collection and Testing

# Sample Collection
The QUALIFIED OPERATOR shall ensure a water sample is acquired for testing from the inline sample port when available as per MAHC Section 5.7.5.
Same Volume If an AQUATIC VENUE has more than one RECIRCULATION SYSTEM, the same sample volume shall be collected from each in-line sample port and tested separately.
No Port If no in-line sample port is available, the QUALIFIED OPERATOR shall ensure water samples from the AQUATIC VENUE are acquired according to MAHC Section 5.7.4.3.
Routine Samples If routine samples are collected from in-line sample ports, the QUALIFIED OPERATOR shall also ensure water samples are acquired from the bulk water of the AQUATIC VENUE at least once per day.
Midday Collection Daily bulk water samples shall be collected in the middle of the AQUATIC VENUE operational day, according to the procedures in MAHC Section 5.7.4.3.
Compared Water quality data from these AQUATIC VENUE samples shall be compared to data obtained from in-line port samples to assess potential water quality variability in the AQUATIC VENUE.

# Bulk Water Sample
The QUALIFIED OPERATOR shall ensure the following procedure is used for acquiring a water sample from bulk water of the POOL.
Obtain Sample All samples shall be obtained from a location with the following qualities: 1) At least 18 inches (45.7 cm) below the surface of the water, and 2) A water depth of between three to four feet (91.4 cm to 1.2 m) when available, and 3) A location between water inlets.
Facility Maintenance & Operation CODE 237
Rotate Sampling locations shall rotate around the shallow end of the POOL.

# Deepest Area
The QUALIFIED OPERATOR shall ensure a sample includes a deep end sample from the AQUATIC VENUE in the water sampling rotation once per week.
Aquatic Venue Water Chemical Balance

# Total Alkalinity Levels
Total alkalinity shall be maintained in the range of 60 to 180 PPM (mg/L).

# Combined Chlorine (Chloramines)
The owner shall ensure the AQUATIC facility takes action to reduce the level of combined chlorine (chloramines) in the water when the level exceeds 0.4 PPM(mg/L). Such actions may include but are not limited to: 1) Superchlorination; 2) Water exchange; or 3) Patron adherence to appropriate BATHER hygiene practices.
Calcium Hardness Calcium hardness shall not exceed 1000 PPM (MG/L).
Algaecides Algaecides may be used in an AQUATIC VENUE provided:
1) The product is labeled as an algaecide for AQUATIC VENUE or SPA use;
2) The product is used in strict compliance with label instructions; and, 3) The product is registered with the US EPA and applicable state agency.

# Source (Fill) Water
The owner of a public AQUATIC VENUE, public SPA, or special use AQUATIC VENUE shall ensure that the water supply for the facility meets one of the following requirements:
1) The water comes from a public water system as defined by the applicable rules of the AHJ in which the facility is located; or 2) The water meets the requirements of the local AHJ for public water systems; or 3) The AHJ has approved an alternative water source for use in the AQUATIC FACILITY.
Water Balance for Aquatic Venues AQUATIC VENUE water shall be chemically balanced.
Facility Maintenance & Operation CODE 238
Water Temperature

# Minimize Risk and Protect Safety
Water temperatures shall be considered and planned for based on risk, SAFETY, priority facility usage, and age of participants, while managing water quality concerns.
Maximum Temperature The maximum temperature for an AQUATIC VENUE is 104o F (40C).
Water Quality Chemical Testing Frequency 5.7.5.1 Chemical Levels FREE AVAILABLE CHLORINE (FAC), combined available CHLORINE (CAC), or total bromine (TB), and pH shall be tested at all AQUATIC VENUES prior to opening each day.
Manual Disinfectant Feed System For all AQUATIC VENUES using a manual DISINFECTANT feed system that delivers DISINFECTANT via a flow through erosion feeder or metering pump without an automated controller, FREE AVAILABLE CHLORINE or bromine and pH shall be tested prior to opening to the public and every two hours while open to the public.
Automatic Disinfectant Feed System For all AQUATIC VENUES using an automated disinfectant feed system, FAC (or TB) and pH shall be tested prior to opening and every four hours while open to the public.
In-Line ORP Readings In-line ORP readings, if such systems are installed, shall be recorded at the same time the FAC (or TB) and pH tests are performed.
Total Alkalinity Total Alkalinity (TA) shall be tested weekly at all AQUATIC VENUES.
Calcium Hardness Calcium hardness shall be tested monthly at all AQUATIC VENUES.
Cyanuric Acid Cyanuric acid shall be tested monthly at all AQUATIC VENUES utilizing cyanuric acid.
Saturation Index The SATURATION INDEX shall be checked monthly.
Tested Cyanuric acid shall be tested 24 hours after the addition of cyanuric acid to the AQUATIC VENUE.
Facility Maintenance & Operation CODE 239
Stabilized Chlorine If AQUATIC VENUES utilize stabilized CHLORINE as its primary disinfectant, the operator shall test cyanuric acid every two weeks.
Total Dissolved Solids Total dissolved solids (TDS) shall be tested quarterly at all AQUATIC VENUES.
Water Temperature For heated AQUATIC VENUES, water temperature shall be recorded at the same time the FAC (or TB) and pH tests are performed.
Salt If in-line electrolytic chlorinators are used, salt levels shall be tested at least weekly or per manufacturer's instructions.
Copper/Silver Systems Copper and silver shall be tested daily at all AQUATIC VENUES utilizing copper/silver systems as a supplemental treatment system.
Water Clarity

# Water Clarity
The water in an AQUATIC VENUE shall be sufficiently clear such that the bottom is visible while the water is static at all times the AQUATIC VENUE is open or available for use .

# Observation
To make this observation, a four inch by four inch square (10.2 cm X 10.2 cm) marker tile in a contrasting color to the POOL floor or main suction outlet shall be located at the deepest part of the POOL.

# Pools Over Ten Feet Deep
For POOLS over ten feet (3.0 m) deep, an eight inch by eight inch square (20.3 X 20.3 cm) marker tile in a contrasting color to the POOL floor or main suction outlet shall be located at the deepest part of the POOL.

# No Marker Tile
In the absence of a marker tile or suction outlet, an alternate means of achieving the goal of observing the bottom of the POOL may be permitted.
Visible This reference point shall be visible at all times at any point on the DECK up to 30 feet (9.1 m) away in a direct line of sight from the tile or main drain.
Facility Maintenance & Operation CODE 240
Spas For SPAS, this test shall be performed when the water is in a non-turbulent state and bubbles have been allowed to dissipate.

# Decks and Equipment
Spectator Areas

# Cross-Connection Control

# Deck Drains
Cross connection devices shall be in good working order, and shall be tested as required by the AHJ.

# Materials / Slip Resistance

# Clean and Good Repair
Surfaces shall be clean and in good repair.

# Risk Management
The finish and profile of DECK surfaces shall be maintained to prevent slips and falls.
Tripping Hazards Tripping hazards shall be avoided.

# Protect
If tripping hazards are present, they shall be repaired or promptly barricaded to protect PATRONS/employees.

# Deck Size/Width
The perimeter deck shall be maintained clear of obstructions for at least a four foot (1.2 m) width around the entire pool unless otherwise allowed by this code.

# Diving Boards and Platforms 

# Starting Blocks

# Competitive Training and Competition
Starting platforms shall only be used for competitive swimming and training.

# Supervision
Starting platforms shall only be used under the direct supervision of a coach or instructor.
Facility Maintenance & Operation CODE 241
Removed or Restricted Starting platforms shall be removed, if possible, or prohibited from use during all recreational or non-competitive swimming activity by covering platforms with a manufacturer-supplied platform cover or with another means or device that is readily visible and clearly prohibits use.
Pool Slides
Safety Equipment Required at All Aquatic Facilities

# Emergency Communication Equipment

# Functioning Communication Equipment
The AQUATIC FACILITY shall have equipment for staff to communicate in cases of emergency.

# Hard-Wired Telephone for 911 Call
The AQUATIC FACILITY or each AQUATIC VENUE, as necessary, shall have a functional telephone or other communication system or device that is hard wired and capable of directly dialing 911 or function as the emergency notification system.

# Conspicuous and Easily 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 functional systems, devices, or communication processes are allowed with AHJ approval in situations when a hardwired telephone is not logistically sound, and an alternate means of communication is available.

# First Aid Equipment

# Location for First Aid
The AQUATIC FACILITY shall have designated locations for emergency and first aid equipment.
Facility Maintenance & Operation CODE 242

# 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, 2) Absorbent compress, 3) Adhesive bandages, 4) Adhesive tape, 5) Sterile pads, 6) Disposable gloves, 7) Scissors, 8) Elastic wrap, 9) Emergency blanket, 10) Resuscitation mask with one-way valve, and 11) Blood borne pathogen spill kit.

# Signage

# 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.

# 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.

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

# 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

# UV Protection for Chairs and Stands
When a chair or stand is provided and QUALIFIED LIFEGUARDS can be exposed to ultraviolet radiation, the chair or stand shall be equipped with or in a location with protection from such ultraviolet radiation exposure.
Facility Maintenance & Operation CODE 243
Spinal Injury Board At least one spinal injury board constructed of material easily SANITIZED/disinfected shall be provided.

# Spinal Injury Board Components
The board shall be equipped with a head immobilizer and sufficient straps to immobilize a person to the spinal injury board.
Rescue Tube Immediately Available Each QUALIFIED LIFEGUARD conducting PATRON surveillance with the responsibility of inwater rescue in less than three feet (0.9 m) of water shall have a rescue tube immediately available for use.
Rescue Tube on Person Each QUALIFIED LIFEGUARD conducting PATRON surveillance in a water depth of three feet (0.9 m) or greater shall have a rescue tube on his/her person in a rescue ready position.
Identifying Uniform QUALIFIED LIFEGUARDS shall wear attire that readily identifies them as members of the AQUATIC FACILITY'S lifeguard staff.
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.
Sun Blocking Methods All AQUATIC FACILITIES where QUALIFIED LIFEGUARDS can be exposed to ultraviolet (UV) radiation shall train lifeguards about the use of protective clothing, hats, sun-blocking umbrellas, and sunscreen application and re-application using or exceeding SPF Level 15 to protect exposed skin areas.

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

# Polarized Sunglasses
When glare impacts the ability to see below the water's surface, QUALIFIED LIFEGUARDS shall wear polarized sunglasses while conducting BATHER surveillance.
Personal Protective Equipment Personal protective devices including a resuscitation mask with one-way valve and nonlatex one-use disposable gloves shall be immediately available to all QUALIFIED LIFEGUARDS.
Facility Maintenance & Operation CODE 244
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 Section 5.8.5.4.1.
Reaching Pole AQUATIC FACILITIES with one QUALIFIED LIFEGUARD shall provide and maintain a reaching pole as per the specifications of MAHC Section 5.8.5.4.2.

# Safety Equipment and Signage Required at Facilities without Lifeguards
Throwing Device AQUATIC VENUES whose depth exceeds two 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.
Reaching Pole AQUATIC VENUES whose depth exceeds two 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, nontelescopic, 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.

# CPR Posters
Cardiopulmonary Resuscitation (CPR) posters that are up to date with latest CPR programs and protocols shall be posted conspicuously at all times.
Imminent 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.
Facility Maintenance & Operation CODE 245
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
5.8.6.1 General Requirements All required BARRIERS and ENCLOSURES shall be maintained to prevent unauthorized entry to the protected space.
Construction Requirements (N/A)

# Gates and Doors

# Self-Closing and Latching
All primary public access gates or doors serving as part of an ENCLOSURE shall have functional self-closing and self-latching closures.

# 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 Filter/Equipment Room 5.9.1 Chemical Storage
Local Codes Chemical STORAGE shall be in compliance with local building and fire CODES.
OSHA and EPA Chemical handling shall be in compliance with OSHA and EPA regulations.
Safety Data Sheets For each chemical, STORAGE, handling and use of the chemical shall be in compliance with the manufacturer's Safety Data Sheets (SDS) and labels.
Facility Maintenance & Operation CODE 246
Access Prevention AQUATIC VENUE chemicals shall be stored to prevent access by unauthorized individuals.
Protected AQUATIC VENUE chemicals shall be stored so that they are protected from getting wet.
No Mixing AQUATIC VENUE chemicals shall be stored so that if the packages were to leak, no mixing of incompatible materials would occur.
SDS Consulted Safety Data Sheets (SDS) shall be consulted for incompatibilities.
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.
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.
PPE 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.
Facility Maintenance & Operation CODE 247
Waiver For AQUATIC FACILITIES that do not currently have a CHEMICAL STORAGE SPACE separate from the EQUIPMENT ROOM, this requirement may be waived at the discretion of the local public health and/or fire officials if the chemicals are protected from exposure to heat and moisture and no imminent health or SAFETY threats are identified.
Warning Signs Warning signs in compliance with NFPA or HMIS ratings shall be posted on CHEMICAL STORAGE SPACE doors.

# 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 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.
Facility Maintenance & Operation CODE 248

# Absence of Bathers
Chemicals added manually directly into the AQUATIC VENUE shall only be introduced in the absence of BATHERS.

# Safety Requirements
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.
Cleaned and Sanitized HYGIENE FACILITY fixtures, dressing area fixtures, and furniture 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.
Mold and Mildew HYGIENE FACILITY floors, walls, and ceilings shall be kept clean and free of visible mold and mildew.
Facility Maintenance & Operation CODE 249
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.
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

# Hand Wash Sink Installed and Operational
The adjacent hand wash sink shall be installed and operational within one 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. 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.
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.
Trash A minimum of one hands-free trash receptacle shall be provided in areas adjacent to hand washing sinks.

# Trash Emptying
Trash receptacles shall be emptied daily and more often if necessary to provide a clean and sanitary environment.
Floor Coverings Non-permanent floor coverings (including but not limited to mats and racks) shall be removable and maintained in accordance with MAHC Section 5.10.4.1.1. Wooden racks, duckboards, and wooden mats shall be prohibited on HYGIENE FACILITY and dressing area flooring.

# Sharps

# Biohazard Action Plan
A biohazard action plan shall also be on file as required by local, state or federal regulations and as part of the AQUATIC FACILITY SAFETY PLAN.
Disposed Sharps within approved containers shall be disposed of as needed by the AQUATIC FACILITY in accordance with local, state, or federal regulations. 5.10.5 Provision of Suits, Towels, and Shared Equipment 5.10.5.1 Towels All towels provided by the AQUATIC FACILITY shall be washed with detergent in warm water, rinsed, and thoroughly dried at the warmest temperature listed on the fabric label after each use.
Suits Any attire provided by the AQUATIC FACILITY shall be washed in accordance with the fabric label or manufacturer's instructions.
Receptacles Non-absorbent, easily cleanable receptacles shall be provided for collection of used suits and towels.
Shared Equipment Cleaned and Sanitized Equipment provided by the AQUATIC FACILITY that comes into contact with BATHER's eyes, nose, ears, and mouth (including but not limited to snorkels, nose clips, and goggles) shall be cleaned, SANITIZED between uses, and stored in a manner to prevent biological growth.
Other Equipment Other shared equipment provided by the AQUATIC FACILITY, including but not limited to fins, kickboards, tubes, lifejackets, and noodles, shall be kept clean and stored in a manner to prevent mold and other biological growth.
Good Repair Shared equipment shall be maintained in good repair. Used Equipment Used and un-SANITIZED shared equipment shall be kept separate from cleaned and SANITIZED shared equipment.
Receptacles Non-absorbent, easily cleanable receptacles shall be provided for collection of used shared equipment.

# Water Supply / Wastewater Disposal 
5.12 Special Requirements for Specific Venues 5.12.1 Waterslides 5.12.1.1 Signage Warning signs shall be posted in accordance with manufacturer's recommendations.

# Wave Pools
Life Jackets U.S. Coast Guard-approved life jackets that are properly sized and fitted shall be provided free for use by BATHERS who request them.

# Moveable Floors
Starting Platforms The use of starting platforms in the area of a MOVEABLE FLOOR shall be prohibited when the water depth is shallower than the minimum required water depth of four feet (1.2 m). Use may only occur as per MAHC Section 5.6.10.3.
Diving Boards When a MOVEABLE FLOOR is installed into a DIVING POOL, diving shall be prohibited unless the DIVING POOL depth meets criteria set in MAHC Section 4.8.2.1.1.

# Bulkheads
Open Area If a BULKHEAD is operated with an open area underneath, no one shall be allowed to swim beneath the BULKHEAD.

# Bulkhead Travel
The BULKHEAD position shall be maintained such that it cannot encroach on any required clearances of other features such as diving boards.
Facility Maintenance & Operation CODE 253 5.12.5 Interactive Water Play Aquatic Venues 5.12.5.1 Cracks CRACKS in the INTERACTIVE WATER PLAY AQUATIC VENUE shall be repaired when they may be a potential for leakage, present a tripping hazard, a potential cause of lacerations, or impact the ability to properly clean and maintain the INTERACTIVE WATER PLAY AQUATIC VENUE area.
Cleaning When cleaning the INTERACTIVE WATER PLAY AQUATIC VENUE CONTAMINANTS shall be removed or washed to the sanitary sewer.
No Sanitary Sewer Drain Available If no sanitary sewer drain is available then debris shall be washed/rinsed to the nearest DECK drain or removed in a manner that prevents CONTAMINANTS from reentering the INTERACTIVE WATER PLAY AQUATIC VENUE.
5.12.6 Wading Pools 5.12.7 Spas 5.12.7.1
Required Operation Time SPA filtration systems shall be operated 24 hours per day except for periods of draining, filling, and maintenance.
Drainage and Replacement SPAS shall be drained, cleaned, scrubbed, and water replaced as calculated in MAHC section 5.12.7.2.1.

# Calculated
The water replacement interval (in days) shall be calculated by dividing the SPA volume (in gallons) by three and then dividing by the average number of users per day.
Scrubbed SPA surfaces, including interior of SKIMMERS, shall be scrubbed or wiped down, and all water drained prior to refill.
MAHC Policies & Management CODE 254

# Policies and Management
The provisions of Chapter 6 shall apply to all AQUATIC FACILITIES covered by this CODE regardless of when constructed, unless otherwise noted.

# Staff Training
All QUALIFIED OPERATORS, maintenance staff, QUALIFIED LIFEGUARD staff, or any others who are involved in the STORAGE, use, or handling of chemicals shall receive training prior to access of chemicals, and receive at least an annual review of procedures thereafter for the following topics discussed in MAHC Section 6.0.1.1 to 6.0.1.5.
OSHA Requirements Federal OSHA Requirements: Hazard Communication Standard (Employee Right-to-Know) and SDS. Know the location and availability of standard and the written program.
Chemical and SDS Lists Know workplace chemicals list and SDS.
Training Plan Employers shall have a training plan in place and implement training for employees on chemicals used at the AQUATIC FACILITY before their first assignment and whenever a new hazard is introduced into the work area.
MAHC Policies & Management CODE 255

# 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.
Body Fluid Exposure Employees assigned to roles which have the potential for an occupational exposure to bloodborne pathogens, pathogens that cause recreational water illnesses, or other pathogens shall be trained to recognize and respond to body fluid (blood, feces, vomit) releases in and around the AQUATIC VENUE area.
Training Documentation A QUALIFIED OPERATOR shall have a current certificate or written documentation acceptable to the AHJ showing completion of an operator training course.
Certificate Available Originals or copies of such certificate or documentation shall be available on site for inspection by the AHJ for each QUALIFIED OPERATOR employed at or contracted by the site, as specified in this CODE.

# MAHC
MAHC Policies & Management CODE 263
11) How TDH is field-determined using vacuum and pressure gauges; 12) TDH effect on pump flow; and 13) Cross connections.

# 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. 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). Recreational water illness (RWI) prevention including:
MAHC Policies & Management CODE 265 6
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.

# Chemical Safety
Chemical SAFETY including steps to safely store and handle chemicals including:
1) How to read labels and material safety data sheets; 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. 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.

# MAHC
Policies & Management CODE 268

# 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 Section 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 EMERGENCY ACTION PLAN.

# Operations
Course work for operations shall include: 1) Regulations, 2) Local and state health departments, 3) AQUATIC FACILITY types, 4) Daily/routine operations, 5) Preventive maintenance, 6) Weatherizing, 7) AQUATIC FACILITY renovation and design, 8) Heating, 9) Air circulation, and 10) SPA and THERAPY POOL issues.

# Regulations
Regulations including the application of local, regional, state, and federal regulations and STANDARDS relating to the operation of AQUATIC FACILITIES. Preventive maintenance including how to develop:
1) A preventive maintenance plan, 2) Routine maintenance procedures, and 3) Record keeping system needed to track maintenance performed.

# Weatherizing
Weatherizing including the importance of weatherizing and the steps to prevent damage to AQUATIC FACILITIES and their mechanical systems due to very low temperatures or extreme weather conditions (e.g., flooding). 2) When it is necessary to renovate; 3) When it is necessary to notify the AHJ of planned renovations and remodeling; and 4) Current trends in facility renovation and design.
MAHC Policies & Management CODE 271 6

# Heating
Heating issues including:
1) Recommended water temperatures and limits, 2) Factors that contribute to the water's heat loss and gain, 3) Heating equipment options, 4) Sizing gas heaters, and 5) How to troubleshoot problems with heaters.

# Course Content
Training materials at a minimum, covering all of the essential topics as outlined in MAHC Section 6.1.2.1 shall be provided and used in operator training courses.
Course Length Course agenda or syllabus shall show amount of time planned to cover each of the essential topics.
Instructor Requirements Operator training course providers shall furnish course instructor information including: instructor available to answer students' questions during normal business hours.
MAHC Policies & Management CODE 273

# 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 Section 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.
Course Certificates Operator training course providers shall furnish course certificate information including: 1) Procedures for issuing nontransferable certificates to the individuals who successfully complete the course work and pass the final exam; 2) Procedures for delivery of course certificates to the individuals who successfully complete the course work and pass the final exam; 3) Instructions for the participant to maintain their originally issued certificate, or a copy thereof, for the duration of its validity; and 4) Procedures for the operator training course provider to maintain an individual's training and exam record for a minimum period of five years after the expiration of the individual's certificate.

# Continuing Education 

# 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.

# MAHC
Policies & Management CODE 274
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.
Additional Training or Testing The AHJ may, at its discretion, require additional operator training or testing.
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.
Course Recognition The AHJ may, at its discretion, recognize, choose not to recognize, or revoke a previously accepted course based upon demonstration of inadequate knowledge or poor performance of its QUALIFIED OPERATORS, or due cause.
Length of Certificate Validity The maximum length of validity for QUALIFIED OPERATOR training certificate shall be five years.

# Lifeguard Training

# Lifeguard Qualifications
A QUALIFIED LIFEGUARD shall: 1) Hazard identification and injury prevention, 2) Emergencies, 3) CPR, 4) AED use, 5) First aid, and 6) Legal issues.
Hazard Identification and Injury Prevention Hazard identification and injury prevention shall include: 1) Identification of common hazards or causes of injuries and their prevention; 2) Responsibilities of a QUALIFIED LIFEGUARD in prevention strategies; 3) Victim recognition; 4) Victim recognition scanning strategies; 5) Factors which impede victim recognition; 6) Health and SAFETY issues related to lifeguarding; and 7) Prevention of voluntary hyperventilation and extended breath holding activities.
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 EMERGENCY ACTION PLAN (EAP) for AQUATIC VENUES.
Resuscitation Skills CPR/AED, AED use, and other resuscitation skills shall be professional level skills that follow treatment protocols consistent with the current ECCU and/or, the ILCOR guidelines for cardiac compressions, foreign body restriction removal, and rescue breathing for infants, children, and adults.
MAHC Policies & Management CODE 276
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; 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 personal protective equipment in dealing with body fluids, blood, and preventing contamination according to current OSHA guidelines.

# 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

# 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 Section 6.2.1.1.

# Skills Practice
Physical training of lifeguarding skills shall include in-water and out-of-water skill practices led by an individual currently certified as an instructor by the training agency which developed the lifeguard course materials.

# 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.
MAHC Policies & Management CODE 277

# 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.
Sufficient Time Course length shall provide sufficient time to cover content, practice, skills, and evaluate competency for the topics listed in MAHC Section 6.2.1.1.
Certified Instructors Lifeguard instructor courses shall be taught only by individuals currently certified as instructors by the training agency which developed the lifeguard course materials. Training agencies shall have a quality control system in place for evaluating a lifeguard instructor's ability to conduct courses.
Training Equipment All lifeguard training courses shall have, at a minimum, the following pieces of equipment available in appropriate student to equipment ratios during the course: 1) Rescue Tubes, 2) Backboard with head immobilizer and sufficient straps to immobilize the victim to the backboard, 3) CPR manikins (Adult and infant),
MAHC Policies & Management CODE

# 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 Section 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.
Instructor Physically Present The instructor of record shall be physically present during the practical testing.
Certifications Lifeguard and lifeguard instructor certifications shall be issued to recognize successful completion of the course as per the requirements of MAHC Section 6.2.1.1 through 6.2.1.3.8.
Number of Years Length of valid certification shall be a maximum of two years for lifeguarding and first aid, and a maximum of one year for Cardiopulmonary Resuscitation (CPR/AED).
MAHC Policies & Management CODE 279 6
Expired Certificate When a certificate has expired for more than 45 days, the QUALIFIED LIFEGUARD shall retake the course or complete a challenge program.

# Challenge Program
A QUALIFIED LIFEGUARD challenge program, when utilized, 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 demonstrating all skills, in and out of the water required in the original lifeguard course for certification, which complies with MAHC Section 6.2.1.1, and uses the equipment specified in MAHC Section 6.2.1.2.7; and 3) Final written, proctored exam.

# Lifeguard Supervisor Training Delivery

# Standardized and Comprehensive
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 Section 6.2.2.2.
Sufficient Time Course length shall provide sufficient time to cover content, demonstration, skill practice, and evaluate competency for the topics listed in MAHC Section 6.2.2.2.
MAHC Policies & Management CODE 281
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.

# 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 Section 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 Section 6.2.2.

# Minimum Prerequisites
Course providers shall develop minimum instructor prerequisites that include, but are not limited to: Course provider shall have a quality control system in place for evaluating a LIFEGUARD SUPERVISOR instructor's ability to conduct courses.
Size and Use A QUALIFIED OPERATOR shall be on-site or immediately available within two hours during all hours of operation at an AQUATIC FACILITY that has: 1) More than two AQUATIC VENUES; or 2) An AQUATIC VENUE of over 50,000 gallons of water; or 3) AQUATIC VENUES that include AQUATIC FEATURES with recirculated water; or 4) An AQUATIC VENUE used as a THERAPY POOL; or 5) An AQUATIC VENUE used to provide swimming training.

# Bathers and Management
A QUALIFIED OPERATOR shall be on site or immediately available within two 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 two hours during all hours of operation at an AQUATIC FACILITY that has a history of CODE
MAHC Policies & Management CODE 283
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 on-site QUALIFIED OPERATOR immediately available within two 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 6.4.1.2.2.1 and 6.4.1.2.5 and, when applicable, 6.4.1.2.2.2.

# 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.
Onsite Responsible Supervisor Duties The designated on-site RESPONSIBLE SUPERVISOR shall:
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:
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, inwater 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.
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
Coordination of Response When one or more QUALIFIED LIFEGUARDS are used, the SAFETY PLAN and the EMERGENCY ACTION PLAN 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.

# 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) EMERGENCY ACTION PLAN, 3) Emergency closure, and 4) Fecal, vomit, and blood contamination on surfaces and in the water as outlined in MAHC Section 6.5.
MAHC Policies & Management CODE 287

# Safety Team Skills Proficiency
Prior to active duty, all members of the SAFETY TEAM shall demonstrate knowledge and skill competency specific to the AQUATIC FACILITY for the following criteria: 1) Understand their responsibilities and of others on the AQUATIC FACILITY SAFETY TEAM;
2) Ability to execute the EMERGENCY ACTION PLAN; 3) Know what conditions require closure of the facility; and 4) Know what actions to take in response to a fecal, vomit, or blood contamination on a surface and in the water as outlined in MAHC Section 6.5.

# Qualified Lifeguard Emergency Action Plan Training
When QUALIFIED LIFEGUARDS are used, they shall be trained on, and receive a copy of, and/or have a copy of the EAP posted and always available at the AQUATIC FACILITY, the specific policies and procedures for the following:
1) Zone of PATRON Surveillance Plan, 2) Rotation Plan, 3) Minimum Staffing Plan, and 4) Rescue/First Aid Response plan.
Qualified Lifeguard Skills Proficiency When QUALIFIED LIFEGUARDS are used, they shall demonstrate knowledge and skill competency specific to the AQUATIC FACILITY for the following criteria:
1) Ability to reach the bottom at the maximum water depth of the venue to be assigned; 2) Ability to identify all zones of BATHER surveillance responsibility to which they could be assigned; 3) Ability to recognize a victim in their assigned zone of BATHER surveillance; 4) Ability to reach the furthest edge of assigned zones of BATHER surveillance within 20 seconds; 5) Water rescue skills outlined in MAHC Section 6.2.1.1.2; 6) CPR/AED and First Aid; 7) Ability to execute EMERGENCY ACTION PLAN; 8) Emergency closure issues; and 9) Fecal, vomit, and blood contamination incident response as outlined in MAHC Section 6.5. Originals or copies of certificates shall be maintained at the AQUATIC FACILITY and be available for inspection.

# CPR / AED and First

# 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 three full years, and be available for inspection.

# Lifeguard Certificate
When QUALIFIED LIFEGUARDS are used, they shall present an unexpired certificate as per MAHC Section 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.

# 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 three years, and available for inspection.
In-Service Documentation Documentation shall include:

# In-Service Training Plan
The in-service training plan shall include:
Competency Demonstration When QUALIFIED LIFEGUARDS are used, they shall be able to demonstrate proficiency in the skills as outlined by MAHC Section 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 Section 6.2.1.1.2; and 3) Perform resuscitation skills consistent with MAHC Section 6.2.1.1.3.

# 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.

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

# Safety Plan Implemented
The elements detailed in the SAFETY PLAN must be implemented and in evidence in the AQUATIC FACILITY operation and is subject to review for compliance by the AHJ at any time.
Staff Management
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.
MAHC Policies & Management CODE 291
Direct Surveillance QUALIFIED LIFEGUARDS assigned responsibilities for PATRON surveillance shall not be assigned other tasks that intrude on PATRON surveillance while performing those surveillance activities.
Distractions While conducting BATHER surveillance, QUALIFIED LIFEGUARDS shall not engage in social conversations or have on their person or lifeguard station cellular telephones, texting devices, music players, or other similar non-emergency electronic devices.
Supervisor Staff
Lifeguard Supervisor Required AQUATIC FACILITIES that are required to have two or more QUALIFIED LIFEGUARDS per the zone plan of BATHER surveillance responsibility in MAHC Section 6.3.3.1.1 shall have at least one person located at the AQUATIC FACILITY during operation designated as the LIFEGUARD SUPERVISOR who meets the requirement of MAHC Section 6.2.2.
Designated Supervisor One of the QUALIFIED LIFEGUARDS as per MAHC Section 6.3.3.1.1 may be designated as the LIFEGUARD SUPERVISOR in addition to fulfilling the duties of QUALIFIED LIFEGUARD.
Lifeguard Supervisor Duties LIFEGUARD SUPERVISOR duties shall not interfere with the primary duty of PATRON surveillance.
Lifeguard Supervisor LIFEGUARD SUPERVISOR responsibilities shall include but not be limited to:
1) Monitor performance of QUALIFIED LIFEGUARDS in their zone of BATHER surveillance responsibility; 2) Make sure the rotation is conducted in accordance with the SAFETY PLAN; 3) Coordinate staff response and BATHER care during an emergency; 4) Identify health and SAFETY hazards and communicate to staff and management to mitigate or otherwise avoid the hazard; and 5) Make sure the required equipment per MAHC Section 5.8.5 is in place and in good condition.

# Emergency Response and Communications Plans
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.
MAHC Policies & Management CODE 292

# 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.
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 (bag valve mask, 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.
MAHC Policies & Management CODE 293 MAHC Policies & Management CODE 294
Operator-Based QUALIFIED OPERATOR-based remote water quality MONITORING systems shall not be a substitute for manual water quality testing of the AQUATIC VENUE.
Training When QUALIFIED LIFEGUARD-or QUALIFIED OPERATOR-based remote MONITORING systems are used, AQUATIC FACILITY staff shall be trained on their use, limitations, and communication and response protocols for communications with the MONITORING group.
Employee Illness and Injury Policy
Illness Policy Supervisors shall not permit employees who are ill with diarrhea to enter the water or perform in a QUALIFIED LIFEGUARD role.
Open Wounds Supervisors shall permit employees with open wounds in the water or in a QUALIFIED LIFEGUARD role only if they have healthcare provider approval or wear a waterproof, occlusive bandage to cover the wound.

# Facility
Record Maintenance AQUATIC FACILITY records shall be:
1) Kept for a minimum of three years, and 2) Available upon request by the AHJ.
Additional Documentation Local CODES may require additional records, documentation, and forms.

# Safety and Maintenance Inspection and Recordkeeping
The QUALIFIED OPERATOR or RESPONSIBLE SUPERVISOR shall ensure that SAFETY and preventive maintenance inspections are done at the AQUATIC FACILITY during seasons or periods when the AQUATIC FACILITY is open and that the results are recorded in a log or form maintained at the AQUATIC FACILITY.

# Daily Inspection Items
The QUALIFIED OPERATOR or RESPONSIBLE SUPERVISOR shall ensure that a daily AQUATIC FACILITY preventive maintenance inspection is done before opening and that it shall include:

# Other Inspection Items
The QUALIFIED OPERATOR or RESPONSIBLE SUPERVISOR shall ensure that the AQUATIC FACILITY preventive maintenance inspections shall also include:
1) Monthly tests of GFCI devices, 2) Inspections every six months of bonding conductors, where accessible.
Illness and Injury Incident Reports

# Incidents to Record
The owner/operator shall ensure that a record is made of all injuries and illness incidents which: 1) Results in deaths; 2) Requires resuscitation, CPR, oxygen or AED use; 3) Requires transportation of the PATRON to a medical facility; or 4) Is a PATRON illness or disease outbreak associated with water quality.
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.
MAHC Policies & Management CODE 297
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.
Lifeguard Rescues The owner/operator shall also record all lifeguard rescues where the QUALIFIED LIFEGUARD enters the water or uses other equipment to help a BATHER.

# Info to Include
These records shall include the date, time, QUALIFIED LIFEGUARD, and PATRON names and reason the rescue was needed.

# Chemical Inventory Log
A chemical inventory log shall be maintained on site to provide a list of chemicals used in the AQUATIC VENUE water and surrounding deck that could result in water quality issues, chemical interactions, or PATRON exposure.
Expiration Dates These records shall include the expiration date for water quality chemical testing reagents.
Daily Water Monitoring and Testing Records Daily, or as often as required, monitoring and testing records shall include, but are not limited to the following:

# Staff Certifications on File
The originals or copies of all required QUALIFIED LIFEGUARD, LIFEGUARD SUPERVISOR, or QUALIFIED OPERATOR certificates shall be maintained at the AQUATIC FACILITY and made available to AHJ, staff, and PATRONS upon request.
Multiple Facilities A copy of the original certificate shall be made available when employees work at multiple AQUATIC FACILITIES.
Bodily Fluids Remediation Log

# Contamination Incidents
A Body Fluid Contamination Response Log shall be maintained to document each occurrence of contamination of the water or its immediately adjacent areas by formed or diarrheal fecal material, whole stomach discharge of vomit, and blood.

# Standard Operating Procedures
The AQUATIC FACILITY'S standard operating procedures for responding to these contamination incidents shall be readily available for review by the AHJ.

# Required Information
The log shall include the following information recorded at the time of the incident:
MAHC Policies & Management CODE

# 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 one inch (25.4 mm or 36 point type) high, with a contrasting background.
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: 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 one 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 Section 6.4.2.2.3 signage items numbers three through ten and, if applicable, numbers 11 through 13, or text complying with the intent of the information, shall be posted at the entrance to each AQUATIC VENUE.

# 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.
MAHC Policies & Management CODE 301

# Spa Signs
In addition to the MAHC Section 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 (40F); 2) Children under age five 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).
Hygiene Facility Signage Signage shall be posted at the HYGIENE FACILITY exit used to access AQUATIC VENUES stating or containing information, or text complying with the intent of the following information:
1) Do not swim when ill with diarrhea; 2) Do not swim with open wounds and sores; 3) Shower before entering the water; 4) Check your child's swim diapers/rubber pants regularly; 5) Diaper changing on the DECK is prohibited; 6) Do not poop or pee in the water; 7) Do not swallow or spit water; and 8) Wash hands before returning to the pool.
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

# 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.
MAHC Policies & Management CODE 302

# 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. for responding to formed-stool contamination, diarrheal-stool contamination, vomit contamination, and contamination involving blood.

# Contamination Training
The CONTAMINATION RESPONSE PLAN shall include procedures for response and cleanup, provisions for training staff in these procedures, and a list of equipment and supplies for clean-up.
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 Personal Protective Equipment and other OSHA measures including the Bloodborne Pathogens Standard 29 CFR 1910.1030 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.
Plan Availability The response plan shall be kept on site and available for viewing by the AHJ.
MAHC Policies & Management CODE
Physical Removal Contaminating material shall be removed (e.g., using a net, scoop, or bucket) and disposed of in a sanitary manner.
Clean / Disinfect Net or Scoop Fecal or vomit contamination of the item used to remove the contamination (e.g., the net or bucket) shall be removed by thorough cleaning followed by DISINFECTION (e.g., after cleaning, leave the net, scoop, or bucket immersed in the pool during the disinfection procedure prescribed for formed-stool, diarrheal-stool, or vomit contamination, as appropriate).
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.
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; raised to 2.0 mg/L (if less than 2.0 mg/L) and maintained for at least 25 minutes (or an equivalent time and concentration to reach the CT VALUE) before reopening the AQUATIC VENUE.

# Pools Containing Chlorine Stabilizers
In AQUATIC VENUE water that contains cyanuric acid or a stabilized CHLORINE product, water shall be treated by doubling the inactivation time required under MAHC Section 6.5.3.1.
Measurement of Inactivation Time Measurement of the inactivation time required shall start when the AQUATIC VENUE reaches the intended free CHLORINE level.

# Pools Containing Chlorine Stabilizers
In AQUATIC VENUE water that contains cyanuric acid or a stabilized CHLORINE product, water shall be treated by:
1) Lowering the pH to 6.5, raising the FREE CHLORINE RESIDUAL to 40 mg/L using a non-stabilized CHLORINE product, and maintaining at 40 mg/L for at least 30 hours or an equivalent time and concentration needed to reach the CT VALUE.
MAHC Policies & Management CODE 305
Vomit-Contamination Vomit-contaminated water shall have the FREE CHLORINE RESIDUAL checked and the FREE CHLORINE RESIDUAL raised to 2.0 mg/L (if less than 2.0 mg/L) and maintained for at least 25 minutes (or an equivalent time and concentration to reach the CT VALUE) before reopening the AQUATIC VENUE.

# Pools Containing Chlorine Stabilizers
In AQUATIC VENUE water that contains cyanuric acid or a stabilized CHLORINE product, water shall be treated by doubling the inactivation time required under MAHC Section 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.
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 Section 6.5.3.1 to satisfy PATRON concerns.
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.
Surface Contamination Cleaning and Disinfection 6.5.4.1 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.
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.
MAHC Policies & Management CODE 306
Contaminant Removal and Disposal CONTAMINANT removed by cleaning shall be disposed of in a sanitary manner or as required by law.
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.

# AHJ Inspections
Inspection Process 6.6.1.1 Inspection Authority The AHJ shall have the right to inspect or investigate the operation and management of an AQUATIC FACILITY.
Inspection Scope and Right Upon presenting proper identification, an authorized employee or agent of the AHJ shall have the right to and be permitted to enter any AQUATIC FACILITY or AQUATIC VENUE area, including the recirculation equipment and piping area, at any reasonable time for the purpose of inspecting the AQUATIC VENUE or AQUATIC FEATURES to do any of the following: 1) Inspect, investigate, or evaluate for compliance with this CODE; 2) Verify compliance with previously written violation orders; 3) Collect samples or specimens; 4) Examine, review, and copy relevant documents and records; 5) Obtain photographic or other evidence needed to enforce this CODE; or 6) Question any person.
Based on Risk An AQUATIC FACILITY'S inspection frequency may be amended based on a risk of recreational water injury and illness.
MAHC Policies & Management CODE 307
Inspection Interference It is a violation of this CODE for a person to interfere with, deny, or delay an inspection or investigation conducted by the AHJ.
Publication of Inspection Forms 6.6.2.1 Inspection Form Publication The AHJ may publish or post on the web or other source the reports of AQUATIC FACILITY inspections.
Imminent Health Hazards
MAHC Policies & Management CODE 308
Low pH Violations If pH testing equipment doesn't measure below 6.5, pH level must be at or below the lowest value of the test equipment.
High pH Violations If pH testing equipment doesn't measure above 8.0, pH level must be at or above the highest value of the test equipment.

# Enforcement

# 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.
Placard Location When a placard is used, it shall be conspicuously posted at each entrance leading to the AQUATIC VENUE.
State Authority When placed by the AHJ, the placard shall state the authority responsible for its placement.
Tampering with Placard When placed by the AHJ, the placard shall indicate that concealment, mutilation, alteration, or removal of it by any person without permission of the AHJ shall constitute a violation of this CODE.
Operator Follow-up Within 15 days of the AHJ placarding an AQUATIC FACILITY, the operator of such AQUATIC FACILITY shall be provided with an opportunity to be heard and present proof that continued operation of the facility does not constitute a danger to the public health.
Correction of Violation If the IMMINENT HEALTH HAZARD(s) have been corrected, the operator may contact the AHJ prior to the hearing and request a follow-up inspection.

# Hearing
The hearing shall be conducted by the AHJ.
Follow-up Inspection The AHJ shall inspect the premises within two working days of notification that the hazard has been eliminated to remove the placards after verifying correction.
MAHC Policies & Management CODE 309

# Other Evidence of Correction
The AHJ may accept other evidence of correction of the hazard in lieu of inspecting the premises.
Enforcement Penalties 6.6.5.1 Liability and Jurisdiction It shall be unlawful for any person to fail to comply with any of the regulations promulgated pursuant to this CODE.
Failure to Comply Any person who fails to comply with any such regulation shall be in violation of this CODE.
Civil Penalty For each such offense, violators shall be liable for a potential civil penalty.
Continued Violation Each day, or any part thereof, during which a willful violation of this CODE exists or persists shall constitute a separate violation of this CODE.
Falsified Documents Falsifying or presenting to the AHJ falsified documentation and or certificates shall be a civil violation as specified by the AHJ.
Enforcement Process Upon determining that one or more violations of this CODE exists, the AHJ shall cause a written notice of the violation or violations to be delivered to the owner or operator of the AQUATIC FACILITY that is in violation of this CODE.