City of Nampa


Excerpt from Stormwater Policy Manual

100 DRAINAGE AND STORMWATER MANAGEMENT DESIGN POLICY

101 GENERAL OVERVIEW

This Design Policy is to complement the City of Nampa Stormwater Management Plan prepared by the City to comply with the EPA Stormwater Phase II Final Rule. This Policy is intended to provide design guidelines to comply with the Stormwater Management Plan.

102 STORMWATER MANAGEMENT GOALS

It is the intent of these Management Goals that downstream drainage systems and water quality not be adversely affected by upstream development. Therefore, this drainage and stormwater management Design Policy addresses two distinct system goals: flow controls, and water quality protection. These goals must be addressed and achieved for the Design and construction phases of all development project.

103 DESIGN OVERVIEW

103.1 GENERAL RULES - FOLLOWING RULES SHALL APPLY:

  1. Private Property Contribution Rule

While each property owner within a development is generally responsible for the stormwater and drainage generated on their property, it is anticipated that some stormwater from private property will enter the public stormwater system. The stormwater system shall be designed to accommodate the anticipated flow from outside the right-of-way based on the development design and grading

  1. Ownership Intent

The stormwater, collection, conveyance, treatment and disposal systems must meet city standards and be turned over to the City for continuous operation and maintenance. The systems must be within the public right-of-way or acceptable city easement. The City will not be responsible to maintain the vegetative matter or synthetic liner as part of it’s operation and maintenance responsibility. All BMP’s requiring vegetative matter to meet the requirements of the BMP, the requirements must be met prior to acceptance by the City.

Links

City of Nampa Stormwater Policy Manual