Lake Sediment as Soil Amendment?

Asked November 19, 2020, 3:17 PM EST

Has anybody ever dredged a lake and used the sediments as a soil amendment? Was it a good idea or a bad one? Is there someone who could test the dredging materials on a small sample size and determine the composition of the stuff?

Thanks in advance,

Charlie

Oregon

1 Response

Thank you for your question, Clarlie. There has been quite a lot of research on this topic, largely by the EPA. http://soilhealth.ucdavis.edu/application/files/4615/4207/8850/The_use_of_soil_amendments_for_remediation_revitalization_and_reuse_of_soils.pdf Here is another one: https://site.extension.uga.edu/bartow/free-soil/ What contaminants are in the sediment depends upon runoff, trash dumped in the lake, and natural erosion conditions. Here is an OSU publication listing available labs: https://agsci.oregonstate.edu/sites/agscid7/files/nwrec/attachments/em8677-_analytical_labs.pdf This can be relatively expensive and, as the second article mentions, may cause more harm than good to your soil, even if free of environmental hazards. I hope this is helpful. Good luck!