Montrose/Palos Verdes Shelf NPL Site

State TrusteeFederal TrusteeAO Bureau

Also Known As

None

Incident Type

Chemical

State

California

Case Status

Restoration

Location

Southern California Bight

Authority

Contaminants of Concern Include

Affected DOI Resources Include

Migratory Birds, Threatened and Endangered Species

Financial Summary

Restoration Funds Collected:

$46,496,493.80

*Restoration Funds Allocated:

$54,073,362.06

*Restoration Funds Remaining:

$5,981,380.80

* Restoration Funds can contain multiple settlements/projects. All collections are placed in interest bearing accounts. For detailed information on individual settlements/ projects please visit: NRDAR Status Report

Case Description

The Palos Verdes Shelf site is an area of contaminated sediments in the Southern California Bight offshore of Los Angeles, California. These sediments were contaminated by DDTs and PCBs in wastewater discharged through ocean outfalls, off the Palos Verdes Peninsula, operated by the County Sanitation Districts of Los Angeles County. The DDTs originated from industrial wastewater discharged through sewers from the Montrose Chemical Company’s former manufacturing plant in Torrance, California. The PCBs, derived from several sources in the greater Los Angeles area, were also discharged to the sewer systems and eventually released through these same ocean outfalls.

Much of the released DDTs and PCBs settled out on the ocean floor. An estimated 110 tons of DDTs and 11 tons of PCBs were deposited in a 17 square mile area of ocean floor on the Palos Verdes Shelf in the Southern California Bight. Affected species include bald eagle, peregrine falcons, brown pelicans, a variety of sea birds, marine mammals, and fish. The U.S. Environmental Protection Agency placed the Montrose Chemical Company site in Torrance on the National Priorities List in 1989.

Volunteers work at Elephant Seal Cove on Santa Barbara Island in Channel Islands National Park, offshore of southern California, restoring native plants and creating high-quality breeding habitat for seabirds as part of the Montrose Settlements Restoration Program. , Credit: Annie Little, USFWS


Case Documents


 Document TypeDocument NameDocument Date
Data pager
Data pager
123
Page size:
PageSizeComboBox
select
 42 items in 3 pages

Factsheet

 Factsheet Bald Eagles 01/01/2008
 Factsheet Fishing and Fish Habitat 01/01/2009
 Factsheet Program Overview 01/01/2008
 Factsheet Restoring Seabirds 01/01/2008
 Factsheet Seabirds on SNI  

Agreement

 MOA/MOU Modified Trustees Agreement 11/15/1991
 MOA/MOU Trustees Agreement 05/30/1990

Assessment

 Study Report 2007 Peregrine Falcon Study Final Report 05/07/2012
 Study Report Coastal Marine Fish Contaminants Survey 06/01/2007
 Assessment Plan Fish Sampling Plan 10/22/2002
 Study Report Survey on Recreational and Subsistence Fishing 06/01/2004

Settlement

 Settlement Agreement Restoration Settlement Agreement 12/28/2006

Restoration (Showing 8 of 30 items. Group continues on the next page.)

 Restoration Implementation Report 2004 Annual Report  
 Restoration Monitoring Report 2004 Bald Eagle Egg Study 07/08/2004
 Restoration Monitoring Report 2004 Bald Eagle Restoration Report 11/01/2004
 Restoration Monitoring Report 2004 Peregrin Falcon Survey  
 Restoration Monitoring Report 2005 Bald Eagle Survey 12/21/2005
 Restoration Implementation Report 2006 Annual Report  
 Restoration Monitoring Report 2006 Bald Eagle Restoration Report 04/01/2007
 Restoration Monitoring Report 2006 Bald Eagle Study 12/20/2006

Map View

Case Contact

Carlsbad Fish and Wildlife Office

Carlsbad, CA | (760) 431-9440 | http://www.fws.gov/carlsbad/

If you have any problems, suggestions, or comments about our website please notify DOINRDAR@ios.doi.gov

Content Protected Copyright © 2020 NRDAR. Reproduction in whole or in part in any form or medium without express written consent of NRDAR is Strictly Prohibited.