Welcome to Vote on the Code 2015 The Process Begins!

CMAHC CR-TRC Presentations Tuesday Morning

Remember for CR Presentations and Comments  Times to be strictly adhered to!  Sign on and use the chat room to make yourself heard  Best if you stick to the CRs being presented in that hour Section  Summary each hour to be presented  All submitter slide presentations are available on the website (if they came by the weekend)  Posted in the CR/TRC data listing (Column labeled “Present. Documents” at end of listing)  You can still (and should if you feel strongly) submit member comments for 2 weeks after the conference (until October 23)  Submit and influence final CRs in the vote

TUESDAY AM CR PRESENTATIONS SECTION 1 CR’S 4, 12, 13, 18/18A

Change Request #4  Submitter presentation: TRC  Summary: Delete the use of “Substantial Alteration” since it sets a specific cost of 50% of replacement cost to kick in AHJ review and compliance certificate. Submitter feels this inhibits AHJ ability to regulate appropriately

Slide Title

Change Request #12  Submitter presentation: TRC  Summary: Removes the ability of a facility to replace equipment in an emergency without AHJ review. MAHC currently allows it but if not deemed compliant upon later review it must be replaced.

Change Request #13  Submitter presentation: John Kelly, IA Dept. of Health  Summary: Deletes entire Plan Submittal Section 4.1 as being perceived as administrative guidance (regulating the regulator)

CR13- Issue: Adoptability of MAHC  4.1 Plan Submittal  Administrative requirements should be addressed separately as these will vary considerably by statutory authority, administrative procedures, and appropriations.  Currently administrative requirements are scattered throughout the MAHC including plan submittal, construction permitting, operating permits, inspections, exemptions, variances, enforcement and penalties. This limits the adoptability of the MAHC.

CR13- Issue: Adoptability of MAHC  When we began looking at the adoption of the MAHC we realized that Chapters 1 & 2 did not contain any regulations so we would only look to adopt Chapters 3-6.  As the administrative requirements are scattered throughout the MAHC it became apparent that considerable amendments would be required to strike provisions in the MAHC to align with our statutory authority and administrative procedures.

CR13- Issue: Adoptability of MAHC  Example Plan Review Coordination The AHJ shall coordinate their AQUATIC FACILITY plan review and communicate their approval with other agencies involved in the AQUATIC FACILITY construction. Annex indicates: Any final approval of plans by the AHJ should be dependent on approval by all other appropriate agencies. There are many other federal, state and local laws, rules, and ordinances that apply to construction projects. The department has no authority to require any other agency to report their approval to the department. Even if the authority existed, this would unnecessarily delay the approval of the pool permit as it could be delayed as other permits are finalized. Typically the design professionals and contractors coordinate the necessary permits and inspections.

CR13- Issue: Adoptability of MAHC  When we look to other model codes, they typically consolidate the administrative procedures into the first chapter so that Chapter 1 can be replaced by amendment allowing the bulk of the code adopted without significant amendments.

Change Request #18/18A  Submitter presentation: John Kelly, IA Dept. of Health  Summary:  18: Requires a scale be present on multiple rider waterslides to ensure riders are within weight limits  18A: TRC amendment deletes scale and adds wording to say multiple rider waterslides should adhere to manufacturer weight limits

CR18-Issue: Injury Prevention  Weight Limits Waterslides that are designed to accommodate multiple riders simultaneously on a tube or raft shall be equipped with a scale to confirm that the group of riders are within the weight limited established by the manufacturer.  The weight limits for waterslides designed to serve multiple riders generally excludes significant combinations of patrons of typical weights. It is not reasonable to expect an individual rider or the operator to know the combined weight of a group of riders without a scale. Therefore there is a high probability of rafts going into operation carrying too much weight placing the rider at an unreasonable risk of injury.

CR18-Issue: Injury Prevention  The World Health Organization (WHO) Guidelines for Safe Recreational Water Environments provides a schematic approach to comparing health hazards encountered during recreational water use.

CR18-Issue: Injury Prevention  Weight is a key variable in the operation of waterslides and excessive weight is cited as a contributing factor in incidents involving these type of slides.  The referenced standard has vastly different design weights for slides designed for a single rider and those designed for multiple riders on a single tube or raft.  For a single rider, the design weight is generally set at 300 lbs which will safely accommodate more than 97% of the population.  For a slide accommodating multiple riders, the design weight for an adult is generally set at approximately170 lbs which would not even accommodate some children let alone an average adult male.  As the weight limits based on the design for waterslides serving multiple riders on a single tube or raft excludes significant combinations of patrons at average weights there is a high probability of rafts going into operation carrying too much weight.

CR18-Issue: Injury Prevention  Scales are commercially available for waterslides which simply give a light signal based on the combined weight of a given group. One park that installed such a scale noted a 75% reduction in the number of insurance claims on their slide.

CR18-Issue: Injury Prevention  According to news reports, Cal-OSHA ordered the installation of a scale on the Pacific Spin waterslide at Knott’s Soak City after a string of incidents in which the ride’s rafts went into operation carrying too much weight.

CR18-Issue: Injury Prevention  The TRC proposed new language removing the requirement for a scale which unfortunately provides no clear path for enforcement until after an incident occurs.  As no other means has been suggested to prevent the overweight operation, the proposed language does not appear to prevent the injuries that the change request was intended to address or the potential claims and liability.

TUESDAY AM SUBMITTED COMMENTS (0) CHAT ROOM COMMENTS SECTION 1 CR’S 4, 12, 13, 18/18A

CR PRESENTATIONS SECTION 2 CR’S 22, 24, 26, 27/27A

Change Request #22  Submitter presentation: TRC  Summary: Introduces language in code and annex intended to reduce noise pollution

Change Request #24  Submitter presentation: John Kelly, IA Dept. of Health  Summary: Restricts the use of underwater benches to water less than 3 feet (5 feet currently)

CR24-Issue: Drowning Prevention  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 three feet (0.9 m) five feet (1.5 m). The surface of the bench shall be marked “No Standing” in red letters at least 4 inches high spaced not more than 10 feet apart.  The Annex of the MAHC indicates that the five foot depth restriction is to address the potential safety issue of stepping or otherwise moving off a bench into deep water.

CR24-Issue: Drowning Prevention  When I look at children between the ages of 1-5 years old, drowning has moved from the 3 rd to the 1 st leading cause of unintentional injury deaths. I believe to reverse this trend more must be done with respect to the design of swimming pools to make them more safe for these young children.

CR24-Issue: Drowning Prevention  The Redwoods Group aquatic investigations have shown that approximately 70% of the drowning incidents that they have investigated have occurred between the 3 ft to 5 ft depths.

CR24-Issue: Drowning Prevention  Deep water was historically defined as water depths greater than 5 ft to delineate the diving areas from the swimming areas.  In the 1991 ANSI/NSPI-1 Standard for Public Swimming Pools, the shallow end of the swimming area was a minimum of 3 ft while young non-swimmers were confined to beginners’ areas of the pool that were visually set apart from the shallow end of the swimming area with a float line, depth markers, and a warning stripe.

CR24-Issue: Drowning Prevention  Data from CDC Wonder appears to indicate the rate of drowning and submersion deaths associated with swimming pools for young children has been trending higher since  WHO guidance indicates:

CR24-Issue: Drowning Prevention  Small children often stand on benches where the depth of the swimming pool is too deep for them to stand. Allowing underwater benches at depths up to and including five feet places these children at increased risk of drowning if they accidently step off the bench. Restricting benches to water depths of 3 ft or less reduces their risk of drowning.

Change Request #26  Submitter presentation: John Kelly, IA Dept. of Health  Summary: Hydrotherapy jets are banned from use on pool benches (still OK for spas and therapy pools)

CR26-Issue: Drowning Prevention  Hydrotherapy Jets The use of hydrotherapy jets at underwater benches shall be limited to spas and therapy pools.  Air entrained by hydrotherapy jets obscure visibility below the water surface  For spas the MAHC notes clarity shall be performed when the water is in a non-turbulent state and after the bubbles have been allowed to dissipate. Required signage indicates children under 5 shall not use spas.  For pools the MAHC notes shall be sufficiently clear such that the bottom is visible while the water is static. This would appear to allow the hydrotherapy jets to be shut off for the clarity test even though they could obscure the visibility of the bottom of the pool during normal operation. Children of any age may use pools.

CR26-Issue: Drowning Prevention  On inspection at a 7000 sqft children's recreational pool designed with perimeter benches with 36 hydrotherapy jets, the bottom including drains could not be seen in 4 ft of water until the jets were disabled

CR26-Issue: Drowning Prevention  Where hydrotherapy jets are used at underwater benches in swimming pools they can:  push young children from benches  prevent these young and weak swimmers from reaching the handhold at the perimeter of the pool in the location of the bench  impart motion to an unconscious victim making it more difficult to identify a victim in need of rescue.

CR26-Issue: Drowning Prevention  Small children often stand on benches in pool. Where hydrotherapy jets are used at underwater benches in swimming pools if they fall from the bench the jets can push them away from the bench and handhold at the perimeter of the pool.

CR26-Issue: Drowning Prevention  In an incident at a pool with a bench with hydrotherapy jets, the witness statement from the patron who recovered the victim indicated that the victim was underwater “but the current was making him mobile” His sketch of the incident appears to support that the current was moving the victim from the area with hydrotherapy jets toward the center of the pool.

Change Request #27/27A  Submitter presentation: John Kelly, IA Dept. of Health  Summary:  27: Underwater shelves would now be prohibited  27A: TRC modified to move them outside the perimeter of pool, be expanded top tread of stairway, and must not obscure view of entire pool

CR27-Issue: Drowning Prevention  Underwater Shelves Underwater shelves are prohibited.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).

CR27-Issue: Drowning Prevention  Under In water depths under 5 ft the slope of the floor of all pools shall not exceed one foot vertical drop for every 12 feet horizontal to provide a safe walking surface and a gradual change in depth.  The section on underwater shelves is in direct conflict with violating the sloping limits, creating an unsafe walking surface, and creating an abrupt change of depth which introduces additional health and safety hazards particularly for small children.

CR27-Issue: Drowning Prevention  The Redwoods Group aquatic investigations have shown that approximately 70% of the drowning incidents that they have investigated have occurred between the 3 ft to 5 ft depths.

CR27-Issue: Drowning Prevention  Data from CDC Wonder, appears to indicate the rate of drowning and submersion deaths associated with swimming pools for young children has been trending higher since  WHO guidance indicates:

CR27-Issue: Drowning Prevention

 The projects that I see designed with underwater shelves are clearly intended for young children and would be allowed under the MAHC and TRC language.

CR 27 Review

CR27A TRC Suggested Modification Stairs Stairs from the underwater shelves into the pool shall be in accordance with of MAHC Pool Clearly Visible An Underwater Shelf should be constructed to allow the pool area adjacent to the shelf to be clearly visible from the deck and all areas of the pool.

CR 27A, cont.

TUESDAY AM CR SUBMITTED COMMENTS (0) CHAT ROOM COMMENTS SECTION 2 CR’S 22, 24, 26, 27/27A

TUESDAY AM CR PRESENTATIONS SECTION 3 CR’S 28, 30, 33, 34

Change Request #28  Submitter presentation: John Kelly, IA Dept. of Health  Summary: In water over 5 feet, stairs can only be a maximum width of 5 feet to reduce visibility obstruction

CR28-Issue: Drowning Prevention  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 maximum width of the stairway shall be 5 feet and the lowest tread shall be not less than four feet (1.2 m) below the water elevation.  In deep water the lifeguards must be located near the vertical pool wall to see down to the bottom of the pool and to quickly access the pool in response to an incident. Without placing a limit on the width of the stairway, stairs could be designed in accordance with the code while severely limiting the visibility and access into the deep water by lifeguards.

CR28-Issue: Drowning Prevention  The sight lines into the pool are a matter of physics and pool geometry. To prevent negatively impacting the sightlines/visibility into the pool by the lifeguard they must be located close to the vertical pool wall. Stairs of an unlimited width push the lifeguard back from the vertical wall creating a large area on the bottom of the swimming pool that is not visible to the lifeguard.

CR28-Issue: Drowning Prevention  The unrestricted use of stairs, shelves, benches, and wing walls in deep water greatly limits the placement of lifeguards and visibility into the bottom of the pool

Change Request #30  Submitter presentation: John Kelly, IA Dept. of Health  Summary: In zero depth entry pools will require colored warning lines at 1, 2, and 3 feet. Will require float line at 3 feet

CR30-Issue: Drowning Prevention  Float Line and Warning Stripes On a zero depth entry, the bottom and sides shall of the pool be marked with a 4 inch wide colored warning stripe of at the 1 ft (green stripe), 2 ft (yellow stripe), and 3 ft (red stripe) depths. A safety rope shall be installed within 12 inches on the shallow side of the warning stripe at the 3 ft depth.  Warning stripes and float lines are already recognized in the MAHC (i.e , , ) to mark transitions and to delineate different uses.  The MAHC does not currently require warning stripes or float lines to mark the transition between the beginner area and the swimming area. This allows young non-swimmers to freely travel into water too deep without any physical barriers or visible warnings. This is a drowning hazard

CR30-Issue: Drowning Prevention  The 1991 ANSI/NSPI-1 Standard for Public Swimming Pools indicated the shallow end of the swimming area was a minimum of 3 ft while young non- swimmers were confined to beginners areas of the pool that were visually set apart from the shallow end of the swimming area with a float line, depth markers, and a warning stripe.

CR30-Issue: Drowning Prevention  Data from CDC Wonder, appears to indicate the rate of drowning and submersion deaths associated with swimming pools for young children has been trending higher since 1999.

CR30-Issue: Drowning Prevention  The Redwoods Group aquatic investigations have shown that approximately 70% of the drowning incidents that they have investigated have occurred between the 3 ft to 5 ft depths.

CR30-Issue: Drowning Prevention  Iowa rules currently require that each section of a multisection water recreation pool be separated from the other sections by a float line. One designer routinely adds the warning stripes at the 1 ft, 2 ft, and 3 ft depths and I have recently begun recommending this to others during plan review.

Change Request #33  Submitter presentation: TRC  Summary: Install a carbon monoxide alarm in all equipment rooms with combustion equipment as well as rooms adjacent to rooms containing combustion equipment

CR 33, cont.

Change Request #34  Submitter presentation: Thomas Lochtefeld, Wave Loch LLC  Summary: Create new surf pool category in MAHC pool flow rate/turnover table---allows manufacturer engineering statement to set bather load due to limited bather numbers using these pools  Switch to Wave Loch slides/video

© SurfLoch LLC 2015MAHC Conference 2015 Calculating Theoretical Peak Occupancy: Surf Pool Exception CR#34

© SurfLoch LLC 2015MAHC Conference 2015 CR#34:Why is a surf pool different from a wave pool? Entry can be from the deep end and the shallow end. The pool bottom in the wave-breaking-zone should be slippery, not slip-resistant. In depths less than 5’, surf pool bottom slope angles can be steeper than 1:12. Wave pools have high bather-loads with high turnover rates. Surf pools have low bather- loads and low turnover rates. Due to large water volume surf pools need exception to prohibition against condensate, collected rainwater or other reclaimed water sources.

© SurfLoch LLC 2015MAHC Conference 2015 CR#34

© SurfLoch LLC 2015MAHC Conference 2015 CR#34

© SurfLoch LLC 2015MAHC Conference 2015 Vote! Section Calculating Theoretical Peak Occupancy The THEORETICAL PEAK OCCUPANCY shall be calculated by dividing the surface area in square feet of the AQUATIC VENUE by the density factor (D) that fits the specific AQUATIC VENUE being considered. THEORETICAL PEAK OCCUPANCY = AQUATIC VENUE surface area / D The density factors (D) are: Water/bather-related: 1) FLAT WATER density factor = 20 ft 2 (1.9 m 2 ) per BATHER. 2) AGITATED WATER density factor = 15 ft 2 (1.4 m 2 ) per BATHER. 3) HOT WATER density factor = 10 ft 2 (0.9 m 2 ) per BATHER. 4) WATERSLIDE LANDING POOL density factor = manufacturer-established capacity at any given time. 5) INTERACTIVE WATER PLAY water density factor = 10 ft 2 (0.9 m 2 ) per BATHER on surface. 6) SURF POOL density factor = manufacturer-established capacity at any given time. CR#34

TUESDAY AM CR SUBMITTED COMMENTS (0) CHAT ROOM COMMENTS SECTION 3 CR’S 28, 30, 33, 34

CAUCUS TIME: TUESDAY 1-2 PM CR SECTIONS 1-3

Caucus Guidance  Split into your sector  Facilitator provided  Go straight to caucus room from lunch  Public Health: Las Palmas 1  Manufacturer: Las Palmas 2  Designers: Las Palmas 3  Management/Staff: Garden Terrace Public Health/Regulators: Federal, State, State Designee, Local Health Depts. Public Health/Regulators: Federal, State, State Designee, Local Health Depts. Management/Staff: Consumer, Consumer Protection, Aquatic Staff, Aquatic Management Management/Staff: Consumer, Consumer Protection, Aquatic Staff, Aquatic Management Designers/Builders: Aquatic Design, Aquatic Builder, Academia Designers/Builders: Aquatic Design, Aquatic Builder, Academia Manufacturers/Suppliers: Aquatic Manufacturer, Aquatic Supplier Manufacturers/Suppliers: Aquatic Manufacturer, Aquatic Supplier

Tuesday Lunch: Noon-1pm Thanks to CMAHC Sponsors Founding Sponsors Gold Bronze

Contact Information Doug Sackett Executive Director, CMAHC Phone:

MAHC More Information: Search on “CDC MAHC” or visit the Healthy Swimming MAHC Website: CMAHC More Information: Search on “CMAHC” or visit the CMAHC Website: