Parcel #s 049-1038-007, 049-1038-0.081 049-,1038-001-1,049-1038-001-4,
049-1038-002; 049-1038-003; 049-1516-006-2, 049-1516-007-2 and the former
Shellmound Street right-of-way) p. 25
Site History
The history of the site included industrial usage of the various parcels including Elementis Pigments at 4650 Shellmound Street, McKinley Property at 5500 Shellmound Street, and the Sepulveda Property at 5600 Shellmound Street (Shellmound Properties). Since 1929, Elementis Pigments produced iron oxide for paint pigments and other uses. Sherwin Williams owned the McKinley and Sepulveda properties until 1965 and 1955, respectively. Sherwin Williams operated a lime and sulfur plant and an insecticide and spray plant. Other usages included a sign shop, a photo shop, a machine shop, and commercial offices at the McKinley Property. A truck and trailer storage yard and equipment rentals used the Sepulveda property. The southern portion of the site includes the former Myers Drum site which historically was used for drum cleaning and recycling.
Site cleanup occurred in 1999-2000 to address concerns primarily related to metals and chlorinated solvents in soil, groundwater. During cleanup operations, over 42,000 tons of contaminated soil and 600,000 gallons of contaminated groundwater were disposed off site. In 2000 and Land Use Covenant was placed on the properties at the site to restrict future usages. The site was developed as a shopping mall which has retail shops, restaurants, movie theatres, and a parking garage. In addition, podium style residences were constructed at the site which have parking garages on the ground floors and residences above. A hotel was constructed at the north end of the site. A Risk Management Plan was approved by DTSC in 2000 which outlined the procedures for long-term operations and monitoring of the site related to the residual levels of hazardous substances that remain at the site.
Project-specific Soil Management Plans (and Groundwater Management Plans) are prepared for work at the site that involve breaching the cap and subsurface work that could potentially encounter contaminated soils and groundwater. Some buildings at the site have vapor barriers and passive venting systems installed to address potential vapor intrusion concerns. Annual ground surface cap inspections are conducted across the site. Annual groundwater monitoring for metals and chlorinated solvents is also conducted. TP 8-31-18
Envirostor (State of California) page
Deed Restriction / Land Use Covenant:
Envirostor (State of California) Deed Restriction Page:
SITE MANAGEMENT REQUIREMENTS:
DAY CARE CENTER PROHIBITED
ELDER CARE CENTER PROHIBITED
HOSPITAL USE PROHIBITED
MAINTAIN MONITORING OF GROUNDWATER
NO GROUNDWATER EXTRACTION AT ANY DEPTH WITHOUT APPROVAL
NOTIFY AFTER CHANGE OF PROPERTY OWNER
ONLY EXTRACTION OF GROUNDWATER FOR SITE REMEDIATION PERMITTED
PUBLIC OR PRIVATE SCHOOL FOR PERSONS UNDER 21 PROHIBITED
RAISING OF FOOD PROHIBITED
REQUIRES SURFACE COVERS
POTENTIAL CONTAMINANTS OF CONCERN
ARSENIC
CHROMIUM VI
COPPER AND COMPOUNDS
LEAD
TRICHLOROETHYLENE (TCE)
Disaster Area 