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The Air District announced today that it has successfully secured a Closure Plan and Agreement with Martin Marietta, terminating operations at its Bayview Hunters Point sand and aggregate processing site at Pier 94. This action will require Martin Marietta to cease all sand and aggregate processing operations by October 31, 2023, and comply with dust control provisions until it vacates the site. 

The Air District is issuing an air quality advisory for smoke for the far South Bay, including Morgan Hill, San Martin, and Gilroy through Monday, July 6. Beginning late Saturday, the Park Fire broke out east of Morgan Hill. Air quality impacts are possible near the fire.

The Air District is extending an air quality advisory for smoke for the far South Bay, including Morgan Hill, San Martin and Gilroy, through Wednesday, July 8. On Tuesday, smoke from the Crews Fire east of Gilroy continues to impact air quality in southern Santa Clara Valley. 

The Air District is announcing that its independent Hearing Board has ordered Martin Marietta to get a permit for the company’s sand distribution plant located at Pier 92 in Bayview Hunters Point, San Francisco. The Hearing Board has also imposed restrictions on the plant’s operations to reduce emissions and protect public health.

The Air District is extending an air quality advisory for smoke for the far South Bay, including Morgan Hill, San Martin, and Gilroy through Tuesday, July 7. Beginning late Saturday, the Park Fire broke out east of Morgan Hill, and on Sunday, the larger Crews Fire started east of Gilroy. Air quality impacts are possible near the fires.

Aug 25, 2025 ... ...

Oct 3, 2023 ... FOR IMMEDIATE RELEASE: October 3, 2023 CONTACT: communications@baaqmd.gov Air District forges agreement with Martin Marietta to close Pier 94, pursues Pier 92 abatement order in Bayview ...

Sep 15, 2025 ... ...

Sep 15, 2025 ... ...

Sep 15, 2025 ... ...

Jun 5, 2026 ... DRAFT ENGINEERING EVALUATION Martin Marietta Materials, Inc. 480 Amador Street, San Franciso, CA 94124 Application: 703078 Facility: 13407 As explained in more detail below and in Appendix A, ...

Jul 18, 2012 ... Bay Area Air Quality Management District 939 Ellis Street San Francisco, CA 94109 (415) 771-6000 Permit Evaluation and Statement of Basis for RENEWAL of MAJOR FACILITY REVIEW ...

Oct 24, 2017 ... Bay Area Air Quality Management District 375 Beale Street, Suite 600 San Francisco, CA 94105 (415) 749-5000 Permit Evaluation and Statement of Basis for RENEWAL of MAJOR ...

May 25, 2004 ... Women’s Energy Matters P.O. Box 883723, San Francisco CA 94188-3723 • bgwem@igc.org • 415-330-9844 May 25, 2004 Sent by email to: bcabral@baaqmd.gov Bay Area Air Quality Management District ...

Jul 7, 2005 ... Bay Area Air Quality Management District 939 Ellis Street San Francisco, CA 94109 (415) 771-6000 Permit Evaluation and Statement of Basis for RENEWAL of MAJOR FACILITY REVIEW ...

Sep 21, 2004 ... APPENDIX ...

Feb 15, 2024 ... BEFORE THE HEARING BOARD 1 OF THE 2 BAY AREA AIR QUALITY MANAGEMENT DISTRICT STATE OF CALIFORNIA 3 ) 4 AIR POLLUTION CONTROL OFFICER of Docket No.: 3746 ) the BAY AREA AIR QUALITY ) ...

Oct 2, 2023 ... 1 2 3 4 5 6 BEFORE THE HEARING BOARD OF THE BAY AREA AIR QUALITY MANAGEMENT DISTRICT 7 STATE OF CALIFORNIA 8 9 AIR POLLUTION CONTROL OFFICER of the ) BAY AREA ...

Jul 17, 2017 ... 600 CO timeseries at San Martin 2 570 540 510 480 450 420 390 Mar 01 Mar 11 Mar 21 Mar 31 Apr 10 Apr 20 Apr 30 May 10 May 20 May 30 time of year Timeseries of hourly CO concentrations (in ppm) at ...

Jul 17, 2017 ... 800 CO timeseries at San Martin 720 640 560 480 400 320 240 160 80 Mar 01 Mar 11 Mar 21 Mar 31 Apr 10 Apr 20 Apr 30 May 10 May 20 May 30 time of year Timeseries of hourly CO concentrations (in ppb) ...