Environmental Rules in Broomfield, CO (2026)
4 verified environmental rules for Broomfield, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Broomfield bans discharging anything but natural stormwater into its municipal storm sewer system, with a short list of exempt nonstormwater flows like lawn watering and firefighting. The public works director and public health officer enforce the rule, backed by fines up to $2,650.00 per violation per day.
Broomfield Storm Sewer Discharge Prohibition
Some RestrictionsBroomfield Municipal Code §§ 13-40-040, 13-40-140(D)
No person shall contribute or cause to be contributed, directly or indirectly, a discharge of any substance other than naturally occurring stormwater runoff into the city's storm sewer system except the following exemptions:(A)Nonstormwater discharges, including the following:(1)Emergency fire-fighting activities;(2)Discharges from potable water sources, including waterline flushing, in accorda...
Erosion Control
Broomfield has no standalone erosion ordinance; it controls construction-site erosion and siltation through its stormwater chapter. Sites disturbing an acre or more must hold a CDPS/NPDES construction stormwater permit and, once built, install and maintain permanent water-quality control measures.
Broomfield Construction Site Erosion Control Duty
Some RestrictionsBroomfield Municipal Code §§ 13-40-010(C), 13-40-080, 13-40-120
(C)To minimize increases in stormwater runoff from any development in order to reduce flooding, siltation, and streambank erosion, and maintain the integrity of stream channels; ... Any person subject to an industrial or construction activity CDPS/NPDES stormwater discharge permit shall comply with all provisions of such permit, the city's Standards and Specifications, and this chapter. ... It ...
Flood Zones
Broomfield regulates construction in areas of special flood hazard under Chapter 17-40 of the Municipal Code, adopting FEMA's 2019 Flood Insurance Study and Rate Map by reference. Anyone building, filling, grading, or altering land in a mapped floodplain must get a development permit from the city engineer before starting work, and violating the chapter is punishable under the general penalty chapter.
Broomfield Floodplain Development Permit Rules
Some RestrictionsBroomfield Municipal Code §§ 17-40-060, 17-40-070
The areas of special flood hazard identified by the Federal Emergency Management Agency in a scientific and engineering report entitled "The Flood Insurance Study for the City of Broomfield," dated August 15, 2019, with an accompanying Flood Insurance Rate Map (FIRM), and any revisions thereto is hereby adopted by reference and declared to be a part of this chapter. The Flood Insurance Study an...
Flood Elevation Requirements
Broomfield requires new and substantially improved buildings in a mapped floodplain to elevate their lowest floor at least one foot above the base flood elevation, the one-foot freeboard set by section 17-40-160 of the Municipal Code. Nonresidential buildings may floodproof to that same height instead of elevating, if a licensed engineer certifies the design.
Broomfield Base Flood Elevation Freeboard Rule
Some RestrictionsBroomfield Municipal Code § 17-40-160(A)-(B)
In all areas of special flood hazard where base flood elevation data has been provided in the study and map referred to in section 17-04-022 or pursuant to section 17-40-130, the following provisions shall apply, in addition to the standards set forth in section 17-40-150: (A)Residential construction. New construction and substantial improvement of any residential structure shall have the lowes...