Broomfield, CO Environmental Rules: Erosion Control (2026)

Broomfield does not maintain a separate erosion-and-sediment-control chapter; it addresses construction-site erosion inside chapter 13-40, the Stormwater Regulations. The chapter's stated purpose includes minimizing increases in runoff from development 'in order to reduce flooding, siltation, and streambank erosion, and maintain the integrity of stream channels' (13-40-010(C)). 'Construction activity' is defined as any project disturbing one acre or more, or a smaller phase of a larger common plan of development, and covers clearing, grubbing, grading, excavating and demolition (13-40-020(G)). Any person doing construction work under a CDPS/NPDES stormwater discharge permit must comply with every term of that permit, the city's Standards and Specifications for Public Improvements, and this chapter, and the city can demand proof of compliance before allowing discharges (13-40-080).

Building or grading permits can be refused to anyone out of compliance with the chapter (13-40-160). After construction, qualifying projects disturbing an acre or more must design, construct, install, inspect and permanently maintain Control Measure/BMP units that prevent or minimize water-quality impacts, with narrow carve-outs for routine pavement resurfacing, small roadway widenings, and utility work that does not alter drainage patterns (13-40-120). Owners must document BMP inspections and keep the public works department updated on the responsible contact.