Stormwater facilities (also referred to as BMPs) are above or belowground permanent systems designed to manage the quantity and quality of stormwater runoff. These facilities incorporate both man-made infrastructure, such as piping and outfalls, and natural enhancements, like soil media and native vegetation, to reduce runoff volume and pollution. Examples of these facilities include but are not limited to: wet and dry ponds, filtration and infiltration basins, filter strips and swales, rain gardens, tree trenches, permeable pavement, underground filtration and infiltration systems, and underground detention systems.

To keep your stormwater system functioning properly:  

• Inspect regularly – Check for sediment buildup, vegetation overgrowth, and structural damage. 
• Remove debris – Clear leaves, trash, and sediment from inlets, outlets, and drainage areas.
• Maintain vegetation – Mow, remove invasive species, and replant as needed. 
• Dredge stormwater ponds – Remove excess sediment to maintain storage capacity. 
• Repair erosion – Stabilize slopes and fix any washouts. 

A maintenance agreement between the District and the responsible party is executed prior to permit closure. This legal agreement is considered a component of the overall BMP Operations & Maintenance Plan. A template and checklist for maintenance requirements are available at www.rwmwd.org/permits. 

To remain in compliance, the District requires the property owner- and all subsequent owners- to inspect and maintain the stormwater facilities at least once per year. The owner is then required to submit a report to the District detailing the inspection date(s), the condition of the facilities, and any corrective actions taken.