|A Final Inspection was
conducted at the Marjol Battery Site on August 31, 2010. Based on the
inspection, construction of the Final Remedy was determined to be
“substantially complete” as of August 27, 2010. The Design Plan calls for
air monitoring to cease at the end of construction, but Gould decided to
continue perimeter air monitoring for the monitors that are located on-site
(4 monitors) and for the monitor at the Mid-Valley Secondary Center through
December 9, 2010. Monitoring at the background location (HV-7) was
stopped at the end of construction. Samples are collected over a
24-hour period every six days and have been collected since January 1989.
Put your cursor over the
name of a location to view air data from December 9, 2010.
(Firefox users click here for a
summary table.) You can also read a
summary of the
4th Quarter 2010 air data or view
historic air data.
On October 15, 2008, the
United States Environmental Protection Agency (USEPA) lowered the National
Ambient Air Quality Lead Standard from a quarterly average of 1.5 µg/m3
(micrograms per meter cubed) to a
rolling three-month average of 0.15 µg/m3, effective October 2009. The
method of collecting the samples did not change. All results are below
the current standard for the Site of 1.5 ug/m3 and below the revised NAAQS
standard of 0.15 ug/m3.
*HV = High Volume air sampler.
Click here for an explanation.