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Map showing Barrio Logan location

Barrio Logan Special Chromium Study

Overview Chromium Study Illustrations

Hexavalent chromium monitoring was conducted during two weeks in December of 2001 in the vicinity of two chrome platers in Barrio Logan. Results of the monitoring showed unexpectedly high concentrations of hexavalent chromium in the air. ARB staff resumed monitoring in February of 2002, and worked closely with local officials to better understand the source of hexavalent chromium in Barrio Logan. Based on the evidence gathered in the study, a San Diego County Superior Court Judge granted a preliminary injunction against Master Plating.

Air Monitoring Results for Chromium

Results and Preliminary findings (Feb 5 - Feb 22)  (English)  (Spanish)  (PDF)

Barrio Logan Update #1 (Feb 23 - Mar 7) English  Spanish
Indoor Air Samples taken, source tests completed, and outside air monitoring results collected. (PDF)

Barrio Logan Update #2 (Mar 11 - Apr 5) English Spanish
ARB testifies in court. Master Plating ceases operation. (PDF)

Barrio Logan Update #3 for April 6 to May 12 English  Spanish
Final air monitoring completed. Source of chromium identified and results communicated to the public. (PDF)


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