California Code of Regulations
Title 14 - Natural Resources
Division 2 - Department of Conservation
Chapter 8 - Mining and Geology
Subchapter 1 - State Mining and Geology Board
Article 2 - Areas Designated to be of Regional Significance
Section 3550.4 - Santa Ana River, Santiago Creek, Arroyo Trabuco, San Juan Creek, and Temescal Valley Areas of the Orange County-Temescal Valley Region, Orange, Riverside, and San Bernardino Counties
A set of maps identifying the exact locations of the designated areas, entitled "Regionally Significant Construction Aggregate Resource Areas in the Orange County-Temescal Valley and San Gabriel Valley Production-Consumption Regions," is incorporated by reference into this regulation. These maps are available from the State Mining and Geology Board's office in Sacramento.
The construction aggregate deposits in the following areas have been designated as being of regional significance:
Sector A--Instream deposits of the Santa Ana River beginning at Prado Dam and extending downstream for one and one-half miles.
Sector B--Instream deposits along the north side of the Santa Ana River beginning near Coal Canyon and extending downstream for approximately three miles.
Sector C--Instream deposits along the south side of the Santa Ana River from Horseshoe Bend downstream to the Weir Canyon Bridge.
Sector D--Offstream deposits located between Orangethorpe Avenue and La Palma Avenue in the northeastern part of Anaheim.
Sector E--Offstream deposits located near the intersection of Fee Ana Street and La Palma Avenue in Anaheim.
Sector F--Offstream deposits in the Warner Basin located near Jefferson Street and the Riverside Freeway in Anaheim.
Sector G--Offstream deposit located on the south side of the Santa Ana River near Lincoln Avenue in Anaheim.
Sector H--Hillside deposit located immediately east of Prado Dam in the Chino Hills.
Sector I--Hillside deposit located east of Gypsum Canyon in the Santa Ana Mountains.
Sector J--Instream deposit of Santiago Creek beginning near Villa Park Dam and extending downstream to approximately the Newport Freeway.
Sector K--A conglomerate deposit in upper Blind Canyon east of Villa Park Dam.
Sector L--Instream deposit located on Santiago Creek between Santiago Dam and Irvine Park.
Sector M--Instream deposit located under the Santiago Reservoir on Santiago Creek.
Sector N--Instream deposits of Santiago Creek beginning near Santiago Reservoir and extending upstream to the confluence of Williams Canyon, including a portion of Silverado Canyon.
Sector O--Offstream deposit located on the southeast side of Cota Street in Corona.
Sector P--Offstream deposits of Temescal Wash near the intersection of the Riverside Freeway and Interstate 15 near Corona.
Sector Q--Instream deposits located in Temescal Wash beginning near Magnolia Avenue and extending upstream to Cajalco Road.
Sector R--Instream deposits located in Temescal Wash beginning near the Olsen Canyon confluence and extending upstream to Lee Lake.
Sector S--Offstream deposits of the Coldwater Mayhew Fan near Glen Ivy Hot Springs.
Sector T--Instream deposits of San Juan Creek beginning near Casper Regional Park and extending downstream to approximately Ganado Road in San Juan Capistrano.
Sector U--Instream deposits of Arroyo Trabuco beginning one-half mile above Interstate 5 and extending approximately five miles upstream.
Sector V--Instream deposits of Arroyo Trabuco beginning at the Live Oak Canyon Road crossing and extending upstream for approximately two miles.
1. New section filed 8-24-83; effective thirtieth day thereafter (Register 83, No. 35).
Note: Authority cited: Section 2790, Public Resources Code. Reference: Sections 2726, 2761- 2763 and 2790- 2791, Public Resources Code.
