15 Miss. Code. R. 11-55-1.19.3

Current through December 10, 2024

Rule 15-11-55-1.19.3 - Health and Safety

1. All piers, floats, and platforms shall be in good repair, and where applicable, the water depth shall be indicated by printed numerals on the deck or planking.

2. There shall be a minimum water depth of 10 feet for a one-meter diving board and 13 feet for a three-meter board or diving tower.

3. For outdoor swimming areas in natural bodies of water, the bottom shall be cleared of stumps, rocks, and other obstacles.

4. Diving boards shall be mounted on a firm foundation and never on an insecure base, such as a float that can be affected by shifting weight loads and wave action. The entire length of the top surface of diving boards shall be covered with nonskid material. The diving board shall be level. All diving boards shall be installed in accordance with manufacturer's guidelines for the board by professional swimming pool installers who shall certify in writing to the facility that the diving board is adequately installed in accordance with manufacturer's guidelines for the board, in a commercially reasonable manner, located so as to allow a child to safely enter the water from the diving board, and that the diving board is safe for its intended use. Facilities with existing pools equipped with diving boards that are unable to obtain the required certification within 60 days of the adoption of this regulation shall have the diving boards removed.

5. Swimming pools, when in use, shall be continuously disinfected by a chemical that imparts an easily measured free available residual effect. When chlorine is used, a free chlorine residual of at least 0.4 ppm shall be maintained throughout the pool whenever it is open or in use. If other halogens are used, residuals of equivalent disinfecting strength shall be maintained.

6. A testing kit for measuring the concentration of the disinfectant, accurate within 0.1 ppm, shall be provided at each swimming pool.

7. Swimming pool water shall be maintained in an alkaline condition as indicated by a pH of not less than 7.2 and not over 8.2. A pH testing kit accurate to the nearest 0.2 pH unit shall be provided at each swimming pool. The alkalinity of the water shall be at least 50 ppm, as measured by the methyl-orange test. The following chart may be used for reference:

pH Minimum Free Available

Residual Chlorine-mg/L

(not stabilized with cyanuric acid)

7.2 ............................................. 0.40

7.3 ............................................. 0.40

7.4 ............................................. 0.40

7.5 ............................................. 0.40

7.6 ............................................. 0.50

7.7 ............................................. 0.60

7.8 ............................................. 0.70

7.9 ............................................. 0.80

8.0 ............................................. 1.00

8. If cyanuric acid is used to stabilize the free available residual chlorine, or if one of the chlorinated isocyanurate compounds is used as the disinfecting chemical in a swimming pool, the concentration of cyanuric acid in the water shall be at least 30 mg/L but shall not exceed 100 mg/L. The free available residual chlorine, of at least the following concentrations, depending upon the pH of the water, shall be maintained:

pH Minimum Free Available

Residual Chlorine-mg/L

(cyanuric acid is at least equal to 30 mg/L, but not greater than 100 mg/L)

7.2 ............................................ 1.00

7.3 ............................................ 1.00

7.4 ............................................ 1.00

7.5 ............................................ 1.00

7.6 ............................................ 1.25

7.7 ............................................ 1.50

7.8 ............................................ 1.75

7.9 ............................................ 2.00

8.0 ............................................ 2.50

9. The water in a swimming pool shall have sufficient clarity at all times so that a black disk, six inches in diameter, is readily visible when placed on a white field at the deepest point of the pool. The pool shall be closed immediately if this requirement cannot be met.

10. For natural bodies of water (e.g., lakes, rivers, streams, etc.), sewage treatment plants or other discharge lines shall not be within 750 feet of swimming areas.

15 Miss. Code. R. 11-55-1.19.3

Miss. Code Ann. § 43-20-8.