Merchandise | Corporate Governance | Employee/Retiree/Emergency Information | Ethics | Suppliers

Boeing Home / About Us / Environment / Cleaning Up Past Practices / Santa Susana / Environmental Programs / Surface Water / Monitoring Reports /

First Quarter 2005 Surface Water Monitoring Results

As required by the National Pollutant Discharge Elimination System (NPDES) permit re-issued by the Los Angeles Regional Water Quality Control Board in July of 2004, the Boeing Company is required to monitor the concentrations of chemicals in surface water runoff from the Santa Susana Field Laboratory (SSFL) and report the results on a quarterly basis.

This 1^st quarter monitoring report covers January 1 through March 31, 2005.

During the 1^st quarter of 2005, over 16 inches of rainfall was recorded at the SSFL. This amount, plus the additional 11 inches that fell during the last quarter of 2004, resulted in unusually large volumes of storm water flowing through the natural streambeds leaving the property. The large flow of storm water run-off contributed to increased erosion of the natural streambeds and hillsides. As a result, water samples collected for analysis included significant concentrations of sediments and vegetation.

In spite of severe and unusual weather conditions, the monitoring results for this quarter demonstrated that the site was in compliance with stringent discharge standards 98% of the time. In most of the cases where a constituent concentration did exceed a discharge limit, the primarily causes are storm related and not a result of Boeing operations.

The link below will lead to a discussion of the specific exceedences, the reasons for them, and the corrective actions taken. It should be noted that none of these constituents exceeded drinking water standards. This provides additional evidence to Boeing's position that the stormwater leaving the site does not pose a risk to the neighboring communities. Boeing has and will continue to take the necessary actions to reduce the amount of naturally occurring sediments in future discharges. The following links will take you to the transmittal letter and attached appendices for this 1^st Quarter 2005 report.

• Letter
• Appendix A-F
• Appendix G (1 of 7)
• Appendix G (2 of 7)
• Appendix G (3 of 7)
• Appendix G (4 of 7)
• Appendix G (5 of 7)
• Appendix G (6 of 7)
• Appendix G (7 of 7)

For more information, contact Inger Hodgson, Manager of Environmental Communications, at 818-466-8793.