The Corps said in its summary filed with the court Friday that the chances of an oil spill are low and any impacts to hunting and fishing “will be of limited scope and duration.” On the environmental justice issue, the agency said minority populations, including the tribe, and low-income groups are not at greater risk of “adverse human health or environmental effects.”

Mike Faith Jr., the Standing Rock chairman, said the corps failed to take a fresh look at the risks as was ordered by Boasberg.

Boasberg did not immediately rule on whether he was satisfied with the Corps’ additional work. However, when he ruled last October that the pipeline could continue operating while the work was done, he hinted it might not take much.