The City of Nampa has enacted a Stormwater Ordinance in order to establish minimum stormwater management requirements and controls to protect and safeguard the general health, safety, and welfare of the public residing in watersheds within this jurisdiction. The City of Nampa is the permitting authority for all land disturbing activities and requires the land owner to maintain all on-site stormwater control facilities and all open space areas (e.g. parks or “green” areas) required by the approved stormwater control plan. The City of Nampa will only provide construction permits to projects that establish a plan to manage stormwater runoff occurring during the construction process. The City of Nampa, under the NPDES program, also has the authority to inspect properties for noncompliance and can issue a notice of violation (NOV) for any deficiency or infraction onsite. Property owners are responsible for the maintenance of any stormwater facilities or practices located on the property. The City of Nampa has the authority to inspect stormwater facilities and practices in order to ascertain that they are properly maintained and functioning.
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.
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.
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
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.
City of Nampa Stormwater Policy Manual