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Hexavalent Chromium Study in Western Riverside County

In 2008, after a five-month intensive investigation of toxic air pollution in the western areas of Riverside and San Bernardino Counties, SCAQMD identified cement production in the area as a source of elevated levels of the cancer-causing chemical hexavalent chromium.

In 2008, after a five-month intensive investigation of toxic air pollution in the western areas of Riverside and San Bernardino Counties, SCAQMD identified cement production in the area as a source of elevated levels of the cancer-causing chemical hexavalent chromiuprem.  As a result, SCAQMD took aggressive action to reduce the hexavalent chromium emissions from the two cement plants in the area in order to lower the cancer risk levels in the communities around the facilities.  In March 2009, the SCAQMD Governing Board adopted Amended Rule 1156 requiring comprehensive emissions mitigation measures as well as requirements for fence line monitoring of hexavalent chromium at the two facilities.

For more information on SCAQMD’s investigation, findings and next steps, please see the links below.

File Info

Date Posted

Monitoring Data / Sample Analysis/ Health Risk

Air Monitoring Data for Hexavalent Chromium

PDF, 611kb

03-18-2011

Deposition Plate Studies

PDF, 14kb

05-16-2008

Hexavalent Chromium Bulk Material Analysis

PDF, 44kb

05-16-2008

Requirement for Health Risk Assessment

PDF, 430kb

04-16-2008

MATES III
(SCAQMD's regional 2004-2006 air toxics study)

Page

January 2008

Water Monitoring Data for Hexavalent Chromium

PDF, 333kb

07-17-2008

SCAQMD, TXI Riverside Cement Settlement

SCAQMD, TXI Riverside Cement Settle Air Quality
Violations
 (press release)

Page

06-24-2008

SCAQMD, TXI Riverside Cement Settlement Agreement

PDF, 1.63MB

06-25-2008

Initial Hexavalent Chromium Study

Colton Town Hall Meeting Presentation on Study

PDF, 1.13MB

05-29-2008

Riverside Town Hall Meeting Presentation on Study

PDF, 1.18MB

04-21-2008

Memo Describing Study

PDF, 858kb

04-16-2008

Enforcement Actions

Notice of Violation Issued

PDF, 28kb

06-17-2008

Notice of Violation Issued

PDF, 72kb

05-09-2008

Notices of Violation Issued

PDF, 402kb

04-25-2008

Notice of Violation Issued

PDF, 61kb

04-18-2008

Health Effects of Hexavalent Chromium

SCAQMD Summary of Health Effects

PDF, 114kb

05-06-2008

EPA Consumer Fact Sheet: Chromium Link to external website.

Page

 

ATSDR Chromium Fact Sheet

PDF, 246kb

February 2001

En Español

PDF, 108kb

Febrero 2001

Upcoming Public Meetings

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South Coast Air Quality Management District

21865 Copley Dr, Diamond Bar, CA 91765

909-396-2000

 

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