The following resources are for land development projects in unincorporated Arapahoe County.  Projects in the City of Centennial use different documents and are available.  You can confirm your project jurisdiction on ArapaMap.

• Arapahoe County Stormwater Management Manual, Drainage Report Checklists, and Post Construction Water Quality Control Measure Standard Details
• Arapahoe County Grading, Erosion, and Sediment Control (GESC) Manual
• Arapahoe County Operations and Maintenance Manual Templates and SOPs for Water Quality Control Measure Inspection and Maintenance
• Fees
• Permitting Process