encyclopedia

SOLE SOURCE CONTRACT

A contract for the acquisition of goods or services from the only contract/vendor/consultant capable, authorized, or available to provide the goods or services. A type of non-competitive contract. Also see Non-Competitive Negotiation.

SOUNDWALL

Noise control walls and barriers built between highways and nearby homes that can reduce noise levels by 10-15 decibels.

SOURCES

Refers to the origin of air contaminants. Can be point (coming from defined site) or non-point (coming form many diffuse sources). Stationary sources include relatively large, fixed facilities such as power plants, chemical process industries, and petroleum refineries. Area sources…

SOUTH COAST AIR BASIN (SCAB)

A geographic area defined by the San Jacinto Mountains to the east, the San Bernardino Mountains to the north, and the Pacific Ocean to the west and south. The entire SCAB is under the jurisdiction of the South Coast Air…

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD)

Air Quality Management District (AQMD).

SOUTHERN CALIFORNIA ASSOCIATION OF GOVERNMENTS

The regional planning agency for Los Angeles, Imperial, Orange, Riverside, San Bernardino, and Ventura Counties; designated the Metropolitan Planning Organization (MPO) by the Federal Government for management and coordination of specified federal and state funded programs. These include air quality…