FAQs • Maricopa County, AZ • CivicEngage

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Subdivision & Infrastructure - Engineering Design

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1. What are the applicable rules and regulations?: For the rules and regulations that apply to water, wastewater and reclaimed water facilities and systems located within the public right-of-way, subdivisions and Mobile Home parks see the Engineering Design page.

2. What are the separation distance requirements for underground piping?: The separation distance for potable water and sewer pipelines located in the public right-of-way is governed by Arizona Administrative Code (AAC) R-18-5-502.C. The separation distance for reclaimed water pipelines located in the public right-of-way is governed by AAC R-18-9-602.F. The Maricopa Association of Government’s "Uniform Standard Details for Public Works Construction" standards 404-1, 404-2 and 404-3 detail the separation distance and protection requirements for the installation of potable water, reclaimed water and sewer pipelines for MAG participants.