Construction Compliance and Water Quality Structures

Construction Compliance

The Construction Sites Compliance Program reduces the amount of sediment and other construction-related pollutants from entering the stormwater sewer system. The City is committed to enhancing and protecting streams, lakes, wetlands, and rivers that may be impacted by sediment-laden runoff. We encourage builders to maintain the natural balance between sediment supply and transport.

Erosion Control

It is the City's policy to encourage erosion control by leaving land undisturbed as long as possible (by project phasing) and using temporary and permanent erosion control Best Management Practices (BMPs). BMP details can be found in Volume 3 of the Urban Storm Drainage Criteria Manual on the Mile High Flood District's website.

Notices of Violation and Stop Work Orders

Under City code, the City of Westminster has the authority to issues Notices of Violation (NOVs) as well as stop work orders for developers or contractors who does not comply with sediment and erosion control measure requirements. Stormwater management information related to construction sites can be found through eTrakIT.

While the City of Westminster closely adheres to local, state, and federal guidelines, we offer robust compliance assistance within the program. City officials are here to serve the community and help in any way we can. Our City inspectors are trained to identify issues and provide assistance and possible solutions where appropriate. Supplemental material related to city expectations for construction compliance is provided below.

Compliance Documents and Forms

Westminster Stormwater Program Guidance Document

Apply for a Land Disturbance Permit

Land Disturbance Permit Submittal Requirements

Land Disturbance Permit Modification Form

Westminster Land Disturbance Permit (LDP) Kickoff and Initial Inspection

Stormwater Management Plan (SWMP) Template - A Microsoft Word version of the Stormwater Management Plan (SWMP) template is available upon request. Please email Heather Otterstetter at hotterst@westminsterco.gov.

Westminster Stormwater Review Checklist

Training Opportunities

Stormwater-quality Structures

Permanent stormwater-quality structures are designed to help reduce flood risk and improve water quality by providing drainage and natural filtration for stormwater runoff.

Structure types include:

Low-impact development technologies such as rain gardens
Detention and retention ponds and basins
Underground storage systems, such as Stormceptor© vaults

Structure Maintenance

The City of Westminster implements planning procedures and enforcement mechanisms to reduce stormwater impacts as a result of new development or significant redevelopment with its Post-Construction Compliance Program.

Private stormwater treatment facilities and permanent stormwater-quality structures must be properly installed and maintained. The City of Westminster’s Engineering Division works directly with developers, homeowners’ associations (HOAs), private property managers, and commercial property owners to achieve this goal. Long-term maintenance of drainage structures is needed to ensure systems continue to function as designed and prevent flooding, erosion, and water quality degradation.

Owners are required to inspect and maintain these stormwater treatment facilities. Inspections and repairs must be documented and available upon request. Additionally, businesses operating on the property are not allowed to discharge anything but naturally occurring stormwater runoff into the stormwater system. This includes preventing materials stored outside from leaking, draining, spilling or being dumped into the stormwater system. 

For Developers and Design Engineers