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Engineering Design

Engineering design reviews are performed as part of the approval process for projects that involve the construction or remodeling of public and semi-public pools, wading pools or special use pools, spas and artificial bathing lakes. See the Approvals and Permits page for additional details regarding approval requirements for these types of projects.

The purpose of an engineering design review is to validate that the design of a project complies with all relevant codes and appropriate design standards. Public and semi-public pools, wading pools or special use pools, spas and artificial bathing lakes are governed by a number of rules and regulations. See the Rules and Regulations page for a summary of the applicable rules and regulations. The rules and regulations affect the design, operations and maintenance of these pools, spas and bathing lakes.

Additional information and answers to common questions about the design review and approval process, including answers to common design issues, may be found on the Frequently Asked Questions (FAQs) page.

Documentation

The type of documentation submitted to the Swimming Pools Program for review and approval of a project which involves the construction of or modification to a public and semi-public pool, wading pool or special use pool, spa or artificial bathing lake typically includes Engineering Calculations and Design Data, Design Drawings, and Technical Specifications. The Design Drawings must include a pool enclosure detail.

While this documentation may specify the design in sufficient detail to complete the design review and approval process, additional documentation may be required to be submitted to complete the project approval process.

See the Frequently Asked Questions (FAQs) page for additional information regarding documentation and submission requirements for projects.

Document Sealing

If a project is submitted by a Professional Engineer or Architect then the following documentation, as a minimum, must be signed and stamped by the Professional Engineer or Architect:

  • Application
  • Engineering Calculations and Design Data – As required by the Swimming Pools Program or by the Arizona State Board of Technical Registration’s rules and regulations.
  • Design Drawings – Each Individual Design Drawing Sheet.
  • Technical Specifications – Cover, Table of Contents or First Page.
  • Reports and Other Documentation – As required by the Swimming Pools Program or by the Arizona State Board of Technical Registration’s rules and regulations.
  • Construction Certification Letter – As required on the certificate form.

The engineering or architectural firm must also be registered with the State Board of Technical Registration.

It is recommended that engineers and architects submitting documentation to the Swimming Pools Program contact the Arizona State Board of Technical Registration if they have any questions about the rules and regulations related to sealing documentation.

Design Requirements and Standards

A number of design standards are explicitly identified within the Chapter VI, "Bathing Places - Public and Semipublic Swimming Pools", of the Maricopa County Environmental Health Code.

General design requirements applicable to all pools, spas and bathing lakes are detailed in the Maricopa County Environmental Health Code (MCEHC) Chapter VI, Section 3, "General Design Standards and Specifications", MCEHC Chapter VI, Section 4, "Water Circulation, Disinfection and Chemical Conditioning" and MCEHC Chapter VI, Section 5, "Bathhouse and Dressing Room Facilities".

Design requirements applicable only to public swimming pools are detailed in the MCEHC Chapter VI, Section 6, "Public Swimming Pools". Design requirements applicable only to semi-public swimming pools are detailed in the MCEHC Chapter VI, Section 7, "Semi-Public Swimming Pools".

Design requirements applicable only to public and semi-public wading pools are detailed in the MCEHC Chapter VI, Section 8, "Wading Pools".

Design requirements applicable only to spas are detailed in the MCEHC Chapter VI, Section 9, "Spas".

Design requirements applicable only to public and semi-public special use pools are detailed in the MCEHC Chapter VI, Section 10, "Special Use Pools".

Design requirements applicable only to water slides are detailed in the MCEHC Chapter VI, Section 13, "Water Slides".

See the Resources page for examples of additional standards and references that may be used by the Department for the review and approval of a design.

Review Criteria

Project documentation submittals are reviewed using the following criteria:

  • Engineering Calculations and Design Data - Reviewed to verify equipment sizes and process design parameters.
  • Design Drawings - Reviewed for issues related to public health or safety, compliance with the rules and regulations, proper operations and maintenance, code requirements and good engineering practice.
  • Technical Specifications - Reviewed in conjunction with the design drawings to verify design adequacy.
  • Reports and Other Documentation - Used as reference information to validate equipment sizing and performance and other design parameters.
Tools and Resources

Tools and additional resources for the engineering design of public and semi-public pools, wading pools or special use pools, spas and artificial bathing lakes may be found on the Resources pages.