The Neosho River received a clean bill of health from the Kansas Department of Health and Environment on Wednesday.
Ashley Jones-Wisner, a public information officer for KDHE, said the group monitored the river through Monday and found no further contamination from the run-off of a fire of an Iola fertilizer facility on New Years Day.
Soil test results are expected this afternoon for the area affected by the run-off of fire-fighting efforts.
Mid-West Fertilizer and city officials from Iola, Humboldt and Chanute, will meet with KDHE officials today.
Doug King, environmental health and safety director at Mid-West Fertilizer, said crews had excavated the entire site at 506 W. Lincoln St.
The process was necessary because the chemicals can remain in the soil for several days, he said.
We filled the whole area with new dirt. It is coming along very well. The test results we received yesterday (Tuesday) were all very good, King said. It is pretty much winding down.
King said that every test they have received on the soil indicates it is clean.
King said the only place being worked on now, is limited to the warehouse itself. All the chemical products have been removed from the site.
Crews wearing haz-mat suits were using large vacuums to clean the warehouse floor, while others were wiping down the walls.
A worker at the site said they still had a lot of cleaning to do inside the warehouse.
While water samples taken along the Neosho River revealed elevated levels of chemicals between Jan. 2 through Jan. 6, only once were they above federal standards.
According to the results on Jan. 2 at the Humboldt water intake site, a test for chlorpyrifos revealed levels of 32 parts per billion. The maximum level for chlorpyrifos allowed is 30 parts per billion.
Chlorpyrifos is a chemical with a skunky odor that is used to control pests.
Chanutes raw water supply reached 13 parts per billion for chlorpyrifos on Sunday.
The chemical was not detected in Humboldt on Monday, with minimal detection in Chanutes finished water at 0.8.
