Outdoor Water Park Bathhouse Plumbing Fixtures

[Ana]

I searched before posting here but I only found a couple of posts and the question was not clearly answered. So I'm hoping I'll find some more insight from you all.
I'm building a bathhouse for an outdoor water park. The water park has a large shallow splash/wading pool with some splashing toys, and a lazy river that goes around it. Depth of the water is less than 18" max
Under ISPSC 2021- Would you consider this a public pool-Class F "wading" or public Pool -Class O -non diving public pool so I can use Chapter 4? If any of these two then I can use Section 410 to calculate my occupant load and then use IPC 2021 to calculate the plumbing fixture count for assembly use. Until now, I feel good about it and I can accommodate the number of plumbing fixtures in my building.
But...
If I consider the facility as aquatic recreation facility (by definition) per Chapter 6, then my occupant load will be calculated per table 608.1 of ISPSC 2021 and then the plumbing fixture count will be unrealistic and out of control.

In your opinions, do you see my first approach as a logical approach- and consider it a public pool type F or even B (look under definitions of ISPSC)- or is it strictly an aquatic recreation facility which requires a very unrealistic number of plumbing fixtures?
Jurisdiction -VA

 

[CCTX_Architect]

I searched before posting here but I only found a couple of posts and the question was not clearly answered. So I'm hoping I'll find some more insight from you all.
I'm building a bathhouse for an outdoor water park. The water park has a large shallow splash/wading pool with some splashing toys, and a lazy river that goes around it. Depth of the water is less than 18" max
Under ISPSC 2021- Would you consider this a public pool-Class F "wading" or public Pool -Class O -non diving public pool so I can use Chapter 4? If any of these two then I can use Section 410 to calculate my occupant load and then use IPC 2021 to calculate the plumbing fixture count for assembly use. Until now, I feel good about it and I can accommodate the number of plumbing fixtures in my building.
But...
If I consider the facility as aquatic recreation facility (by definition) per Chapter 6, then my occupant load will be calculated per table 608.1 of ISPSC 2021 and then the plumbing fixture count will be unrealistic and out of control.

In your opinions, do you see my first approach as a logical approach- and consider it a public pool type F or even B (look under definitions of ISPSC)- or is it strictly an aquatic recreation facility which requires a very unrealistic number of plumbing fixtures?
Jurisdiction -VA

Did you ever get a clarification on which one is correct? I am in the same boat. These numbers with the ISPSC are outrageous!

 

[Yankee Chronicler]

This seems to me to be a situation that not only suggests but absolutely demands a meeting with the AHJ early in the design phase. No matter what advice you may receive here or what decisions you make on your own, it is the opinion of the AHJ that counts. Nobody is going to be happy if you design for 150 people and the AHJ says it should be 500 people.

The town where I work as an ABO and plan reviewer went through this two summers ago. In our case, it became more complicated because in addition to the IBC and the ISPSC, our State Public Health Code has its own requirements and regulations for public swimming pools, and the Health Code calculates occupant load very differently from the way the ICC calculates occupant load. We (meaning both the designers and us code drones) had to satisfy both.

We didn't have a river to deal with, only a swimming pool. Reading Ana's post, I get the feeling that Ana wants to completely ignore the river and only deal with the 18" deep pool. If the water park allows people to use the river, then IMHO you can't ignore it -- you have to somehow calculate (estimate) how many people will be there due to the river, and add that number to the occupant load generated by the man-made pool. There is no science to this, especially where one of the water attractions is a river. This is why IMHO the only responsible way to proceed is to sit down with the code authorities and have a candid discussion to arrive at a number that everyone can live with.

 

[Ana]

Did you ever get a clarification on which one is correct? I am in the same boat. These numbers with the ISPSC are outrageous!

I found that the facility had a restriction from the health department with the number of occupants it should handle, which solved my problem. The code official told me to use IBC and IPC for that restricted count. I guess I got lucky with that restriction that I found