More News on Katrina Oil Spill

Possibly the most underreported story about Hurricane Katrina concerned the numerous oil spills that collectively amounted to several million gallons. From the Times-Picayune, there's more news about the largest spill which involved Murphy Oil:

About 70 homes were added to the contamination zone for the Murphy Oil spill in St. Bernard Parish after federal authorities said they found evidence the oil slick reached as far north as the Forty Arpent Canal.

The expansion of the spill zone raises to about 1,800 the number of homes and businesses potentially polluted when a storage tank at Murphy's Meraux refinery ruptured after Hurricane Katrina, said Lisa Fasano, a spokeswoman for the U.S. Environmental Protection Agency.

The accident sent 1 million gallons of crude oil flooding through surrounding neighborhoods, in the storm's largest incident involving petrochemicals.

I'm very interested in this story. If anyone knows the total amount of oil that was spilled during Hurricane Katrina from all sources, feel free to let me know in the comment section. I'm still not clear if significant oil was spilled during Hurricane Rita and would like to know more about that also.