If you manage a semipublic pool in Arizona, meaning an HOA, apartment complex, hotel, or similar shared facility pool, you are operating under a specific set of rules, and the rules are enforced by inspectors, not suggestions from a service company. This is a plain rundown of what those rules actually require, and just as importantly, who is legally responsible for each part of it.
The regulation and who enforces it
Arizona semipublic pools fall under A.A.C. R9-8-803, the Arizona Administrative Code section covering public and semipublic swimming pools. In Maricopa County, that code is enforced by Maricopa County Environmental Services. They conduct inspections, and they have the authority to red tag a facility that is out of compliance, meaning the pool gets closed to use until it is corrected and re-inspected.
The standards themselves
These are the numbers inspectors check against. Keep this table handy.
| Parameter | Pools | Spas |
|---|---|---|
| Free chlorine | 1.0 to 3.0 ppm | 3.0 to 5.0 ppm |
| Bromine | 2.0 to 4.0 ppm | 3.0 to 5.0 ppm |
| pH | 7.2 to 7.8 | 7.2 to 7.8 |
| Total alkalinity | 60 to 100 ppm | 60 to 100 ppm |
| Cyanuric acid | not above 150 ppm | not above 150 ppm |
| Spa water temperature | n/a | not above 104 F |
Beyond the chemical ranges, two structural requirements matter just as much:
- The main drain has to be visible from the deck. If the water is too cloudy or discolored to see the main drain clearly, that is a safety and compliance issue on its own, independent of what the chemical readings say.
- Testing has to happen at least once daily. Not once a week, not when convenient. Daily.
Who is actually responsible for daily testing and the log
This is the part that gets misunderstood constantly, and it matters enough to state plainly.
Daily testing and keeping a daily operating log are the facility’s legal obligation. Not the pool service vendor’s. The regulation places that responsibility on the facility operator, meaning the property, the HOA, the management company, whoever holds the pool permit. A pool service contract does not transfer that legal obligation to the vendor, no matter how the contract is worded or how often the vendor visits.
A weekly service route, which is the standard model for most commercial pool service, physically cannot satisfy a daily testing requirement. If a vendor visits once a week and tests once a week, that is one data point in a seven day stretch where the code requires seven. This is not a knock on weekly service, it is simply not the same function as daily testing, and no vendor should imply otherwise.
The daily operating log itself has its own requirement: it needs to be kept for 12 months and produced on request during an inspection. That log is built from daily readings, which means someone on site, not the weekly vendor, needs to be taking and recording those readings every single day.
What a good vendor actually does, then
Given that daily testing is the facility’s job, a good service vendor’s role is to support that obligation, not pretend to fulfill it. In practice that means two things:
Document every visit thoroughly. Every service visit should produce a clear record of what was tested, what was found, and what was done, so that record can sit alongside the facility’s own daily log as part of the overall compliance picture during an inspection.
Train on site staff to run the daily log. Whoever is on property day to day, maintenance staff, a front desk team, whoever is designated, needs to actually know how to test water and record it correctly. A vendor who shows up once a week and never addresses this gap is leaving the facility exposed to a compliance failure that has nothing to do with the quality of the weekly service itself.
Property managers should ask directly whether a prospective vendor does this training, because it is the difference between a service that quietly leaves a legal gap in place and one that actually closes it.
What gets a pool red tagged
Inspectors are checking against the table above, plus the drain visibility and testing frequency requirements. Common causes of a red tag include chemical readings outside the ranges above, water too cloudy to see the main drain, no daily log available on request or a log with obvious gaps, and spa temperature over 104 F. A red tag means the pool closes to use immediately until the facility corrects the issue and passes re-inspection, which is a real operational and liability problem for any property that depends on pool access as an amenity.
What a vendor should hand you
At minimum, expect documented readings from every visit, clear notes on any corrections made, and enough consistency in that documentation that it would hold up if an inspector asked to see service history alongside the daily log. What a vendor should not do is suggest that their visit schedule substitutes for the facility’s own daily testing requirement. The two are complementary, not interchangeable.
We work with property managers across the West Valley on commercial pool service, with every visit documented in an emailed report, and we are upfront about where our role ends and the facility’s daily compliance obligations begin. Read more at /commercial.
