City water poisoned!

For some time now me crops have been dying. I didn't figure it out right away because I got a water analysis from my water company and it didn't show anything bad. My tap water comes out at 7.4ph and 80ppm. I figured the ppm count was low enough to not worry about too much of something in the water. After changing nutes 3 times and losing 3 crops I finally picked up an RO filter. It took a week but I finally saw good results from that. The plants would show signs of Mg deficiency first. Then the leafs would go to yellow to brown. The little bud leafs would start to turn and I would have to chop. But the point here is THE CITY WATER KILLED MY PLANTS! My water used to be good. Get a filter. Trust No One

Yea, Out here is silicon valley we stopped drinking tap many years ago. There is a RO in most homes. Ours has over 20 times the allowed amount of arsenic. Like its ok to have any in your drinking water. They use it to wash the chips. Fucking assholes.