Peoria requires grading permits for projects altering the natural grade. The city participates in the Flood Control District of Maricopa County. Development must retain stormwater on-site. The New River and Skunk Creek corridors have significant flood plain areas. Proper drainage is critical in Peoria's desert environment.
Grading and drainage in Peoria are regulated through the city's engineering standards. Grading permits are required for projects changing natural land contours. Drainage reports may be required for development. On-site stormwater retention reduces downstream flood risk. The New River and Skunk Creek are major waterways with FEMA flood plains. The Flood Control District of Maricopa County manages regional infrastructure. Peoria's rapid development makes drainage management critical — impervious surface increases from new construction can significantly impact downstream properties without proper retention.
Grading without permits or causing drainage problems may result in stop-work orders, fines, and remediation orders.
Peoria, AZ
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Side-by-side rule comparisons with other cities in Maricopa County.
See how other cities in Maricopa County handle grading & drainage.
See how Peoria's grading & drainage rules stack up against other locations.
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