National Flood Insurance Program: The federal program that authorizes the sale of federally subsidized flood insurance in communities where such flood insurance is not available privately.

National Pollutant Discharge Elimination System (NPDES): A provision of the federal Clean Water Act that prohibits discharge of pollutants into waters of the United States unless a special permit is issued by the U.S. EPA, a state, or another delegated agency.

National Register of Historic Places: The nation’s official list of districts, sites, buildings, structures, and objects significant in national, regional or local American history, architecture, archaeology, and culture, maintained by the U.S. Secretary of the Interior.

Native: Refers to those plant and animal species originating naturally in a particular region.

Native soil: Refers to soils native to the site that were not placed by humans to fill the Bay or to cover pre-existing soils.

Neighborhood: Is a geographically localized community.

Noise: Any sound, which exceeds the appropriate actual or presumed ambient noise level which annoys or tends to disturb humans, or which causes or tends to cause an adverse psychological or physiological effect on humans.

Noise Contours: Continuous lines of equal noise level usually drawn around a noise source, such as an airport or highway. The lines are generally drawn in five decibel increments so that they resemble elevation contours in topographic maps.

Non-native: In a practical sense, any plant population which established after dispersal by human conveyance (deliberate or accidental) in historic times (following European contact or settlement), and was not present in the flora during the time indigenous people occupied the land exclusively.

Nonpoint Source Pollution: Pollution that enters water from dispersed and uncontrolled sources, such as surface runoff, rather than through pipes. Nonpoint sources (e.g., landscape practices, on-site sewage disposal, and automobiles) may contribute pathogens, suspended solids, and toxicants. While individual sources may seem insignificant, the cumulative effects of nonpoint source pollution can be significant.

Non-Stormwater Discharge: Any discharge that is not entirely composed of stormwater except those noted within an NPDES permit.

Open Space/Open Area refers to a land use designation set forth in the proposed Brisbane Baylands Specific Plan prepared by the applicant for the DSP and DSP-V scenarios.

Open Space: Any area of land or water that is essentially devoted to the purposes of (1) the preservation of natural resources, (2) the managed production of resources, (3) outdoor recreation, or (4) public health and safety.