Yes, 300-305ppm.
However ppm is not a constant since meters measure EC and then convert to ppm. Different Mfrs use different conversion factors.

I have a Milwaukee. It's conversion factor is 68.

Bottom line is I use EC measured in mS (milliSiemens). My nutes schedule is published in EC. This way I know I'm talking apples to apples instead of apples to oranges.

M.P.