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Courthouse.
“What good does that test do you in the real world?” Luke asked Susan Trumbo, vice president of Recyc Systems.
County Administrator John McCarthy asked Trumbo what, remedies are available if sludge that has already been applied is tested and found to contain harmful substances or have an acceptable pH.
In cases of low pH, which indicates an acidic composition, Trumbo said lime can be applied to a field to raise the pH. She also said certain crops can be planted to take up other pollutants, and that method is being used on several toxic waste sites around the United States.
Trumbo said high levels of certain toxins, like arsenic, will cause a treatment plant to crash, preventing the sludge from ever making it out of the facility and onto fields.
“I’m aware of treatment plants that have crashed” for such reasons, Trumbo said.
“There are a lot of chemicals that aren’t going to make it crash,” countered Tim Bondelid, RappFLOW’s representative on the committee.
In extreme cases, Trumbo said, soil can be excavated, but that is not done very often.
Trumbo said Recyc has had one situation where sludge
95.6%