ZDC 4-702. General Landscape Standards.

A. Water Retention Area Landscape Standards. All on-site water retention areas, other than paved surfaces, shall be entirely landscaped, and comply with the criteria below:

1. The retention areas shall not occupy more than sixty-seven percent (67%) of the on-site street frontage landscape area (landscape area does not include driveways); and

2. All retention areas shall maintain slopes no steeper than four to one (4:1), except as approved by the Public Works Manager.

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A common example:

A common violation for this code is a property with an unapproved slope greater than four to one (4:1). The violation in this scenario is the absence of a Public Works Manager's approval.