I have FOXFARM OCEAN FOREST soil. I did not add any nutrients, my run off water is in the 2k!!PPM Is this normal?

Hi! this is my first time growing. My plants

Seem happy and healthy in their environment I have for them. they are about 2-3 weeks And I am only using FOXFARM OCEAN FOREST soil with no extra nutrients in the soil nor water. The water I use is at a ph of 6-6.6ish and the ppm in my water is at 147ish. I was curious what my run off ppm would be and it was in the 2000’s! Is this normal? My plants are in solo cups and they are healthy for the looks of it, no yellowing or toxicity.