Actually, Snipe, you were incredibly helpful. It made me wonder, since I take EC readings of my water but I never used it for much more than a baseline because I never thought to convert it.
36 pages of reading and three new columns to my historical water reading spreadsheet later...
An EC of 2.96 dS/m = 1,894.4ppm or mg/l. 1 dS/m = 1000 µS/cm and dS/m x 640 = ppm
This is my new favorite publication and I owe it to you, Snipe! Thank you!
https://prod.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs144p2_067096.pdf
