The Corps expected to close two breaches at the London Avenue Canal within 24 hours. Employees and contractors were temporarily using sandbags to close these holes. Several small breaches caused by the storm had been found and were being closed. Draining the city was estimated to take anywhere from 24 to 80 days. Volunteers from as far as Germany and the Netherlands offered to assist with pumps and generators. Engineers found two breaches on the east side of the Inner Harbor Navigational Canal and one on its west side. They closed the larger of the two breaches on the east side yesterday and filled the smaller of the two breaches with clay and stone. Work will begin on the west side as soon as feasible. 23 of the 148 permanent pumps had now been restored to operation. Three pumps were operating at the 17th Street Canal, discharging water at around 2,250 cubic feet per second (64 m³/s). Pump station 19 at the Industrial Canal, just north of Florida Avenue, was pumping 1,300 cubic feet per second (37 m³/s). Pump station 8, located in St. Bernard Parish in the vicinity of St. Mary, was running at full capacity at 837 cubic feet per second (24 m³/s). By this time, approximately 100 U.S. Army Corps of Engineers workers were in New Orleans. Over 500 contracted workers were involved in repairs. By September 8, 2005, of the 174 pumps now in New Orleans area, 37 were operational, extracting water at a rate of . Nine pumps in Plaquemines Parish extracted water at a rate of . However, officials were wary of operating the pumps at full capacity because of the possibility of damaging newly repaired levees and of losing corpses. By Friday, September 9, 2005, 32 of 148 existing pumps in New Orleans proper were operating, pumping 11,282 cubic feet per second (319 m³/s), and 38 portable pumps were operating, pumping 734 cubic feet per second (21 m³/s). In addition, 9 of 26 existing pumps in Plaquemines Parish reported operating at 1,360 cubic feet per second (39 m³/s). It was estimated, based on average seasonal rainfall, that Orleans Parish would be drained by the week of October 2, 2005. Orleans East and Chalmette would be drained by the week of October 8, 2005, and Plaquemines Parish would be drained by the week of October 18, 2005. By Saturday, September 10, 2005, there were