Peoria, AZ Environmental Rules: Erosion Control (2026)

Grading and drainage work in Peoria is administered by the Engineering Director, and Section 20-258(a) requires the applicant to file a written application describing the work before a grading permit issues. Section 20-258(e) adds the erosion piece directly: a Storm Water Pollution Prevention Plan, required by the federal NPDES program, must be submitted with the grading and drainage plan, and the detailed erosion-control requirements live in the City's Infrastructure Development Guideline, which the Department of Engineering can amend from time to time. Section 20-259(d) backs that up during construction, requiring every person performing grading to put in place whatever safety precautions the Engineering Director finds necessary, including adequate erosion control under the NPDES program, anti-erosion and drainage devices, and debris basins, to protect life, health, and property from damage.

The Engineering Director can also attach conditions to an approved permit under Section 20-259(e), such as requiring the salvage of protected native plant species or temporary fencing of hillside and desert preservation areas before grading starts, on top of standard erosion controls. A grading permit issued under this chapter is valid for nine months from issuance or approval, whichever is less, and Section 20-259(c) gives the permittee that same nine months to finish the work unless the Engineering Director grants a written extension for good cause.

Because the ordinance separately requires a copy of the Maricopa County Rule 310 permit to be incorporated into the City's grading and drainage permit, a Peoria project's erosion and dust controls have to satisfy both the city plan and the county air-quality rule at the same time.