EVEREST June, 2013 - California Department of Boating and ...
EVEREST June, 2013 - California Department of Boating and ...
EVEREST June, 2013 - California Department of Boating and ...
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Orange County Coastal Regional Sediment Management Plan<br />
3. PLAN ELEMENTS<br />
This section discusses the elements that were used to develop Plan activities. Plan elements<br />
include the potential sediment receiver sites that can accept sediment, possible sediment<br />
sources, available methods to implement RSM solutions, biological constraints, regulatory <strong>and</strong><br />
permitting constraints, governance issues, <strong>and</strong> possible funding sources. These elements can<br />
be viewed as the building blocks from which Plan activities were created.<br />
3.1 Receiver Sites<br />
A key component <strong>of</strong> RSM is disposal or placement <strong>of</strong> available sediment. Disposal refers to<br />
management alternatives that rely on discarding dredged material, usually without the intent for<br />
beneficial use. Placement <strong>of</strong> clean material on beaches <strong>and</strong> nearshore can provide benefits <strong>of</strong><br />
widening the receiving beach areas. Typical coastal disposal <strong>and</strong> placement options include<br />
open ocean disposal, submerged aquatic disposal, nearshore confined disposal, unconfined<br />
nearshore placement, <strong>and</strong> beach nourishment. Placement options within the watershed include<br />
downstream from dams <strong>and</strong> reservoirs, along stream banks, <strong>and</strong> in l<strong>and</strong>fills. Sediment disposal<br />
<strong>and</strong> placement options are discussed below.<br />
3.1.1 Open Ocean Disposal<br />
Open ocean disposal involves placing dredged material at designated open ocean disposal<br />
sites, if the material is proven suitable for such disposal. There are currently two designated<br />
open ocean disposal sites near Orange County: LA-2 Ocean Dredged Material Disposal Site<br />
(ODMDS), which is located in San Pedro Bay, approximately six miles south <strong>of</strong> the Los Angeles<br />
Harbor; <strong>and</strong> LA-3 ODMDS, which is <strong>of</strong>f the Orange County coast, approximately four miles<br />
southwest <strong>of</strong> the entrance to Newport Harbor. The LA-2 site was designated as a permanent<br />
disposal site in 1991 <strong>and</strong> serves Los Angeles <strong>and</strong> Long Beach Harbors, the Los Angeles River<br />
Estuary, Marina del Rey, Anaheim Bay <strong>and</strong> Huntington Harbour. LA-3 was designated as a<br />
permanent disposal site by the U.S. Environmental Protection Agency (USEPA) in 2005 to<br />
service the disposal needs <strong>of</strong> the Orange County harbors (USEPA <strong>and</strong> USACE, 2004).<br />
3.1.2 L<strong>and</strong>fills<br />
L<strong>and</strong>fill disposal options include placement at inl<strong>and</strong> confined disposal facilities <strong>and</strong> Class I, II,<br />
<strong>and</strong> III commercial l<strong>and</strong>fills. Primary issues with using a commercial l<strong>and</strong>fill include: 1)<br />
available l<strong>and</strong>fill capacity, 2) high disposal fees, 3) high transport <strong>and</strong> trucking costs, <strong>and</strong><br />
4) dewatering requirements <strong>and</strong> costs. In addition to the above, other issues with development<br />
<strong>of</strong> a l<strong>and</strong>fill include: 1) l<strong>and</strong> availability <strong>and</strong> facility capital cost, 2) containment leaching,<br />
3) effluent control, <strong>and</strong> 4) long-term end use.<br />
Everest International Consultants, Inc. 3.1
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