Drainage Plan Requirements

Grading & Drainage Report

Any new home construction, or proposals to increase the square footage of a structure on a lot by more than 2,500 square feet of impervious surface area (structure additions, hardscapes, and pavements) is required to submit a grading and drainage report. The Village has adopted the Arapahoe County Stormwater Management Manual (PDF) for its drainage plan requirements.  

Required Submissions

A Phase III drainage report should be submitted with the building permit. No building permit will be issued until the Village has reviewed and approved the grading and drainage report.

A SWMP or GESC will be required for any construction disturbing 1 acre or more of land, or for construction adjacent to a watercourse or wetland. 

Drainage, GESC, and Engineering Plan Requirements

Please use the below approval block and checklists for requirements for drainage, stormwater, and other engineering plans.

Below is a link to Arapahoe County's webpage that provides templates that may help when creating O&M Manual documents.