Answer:
Yes it can.
Explanation:
I know cause I’ve experienced it
There are a few bad effects, depending on the pesticide, it could cause anyone who eats the crop to get severally ill. That in turn would cause a recall. That could then be bad for the farmer that sprayed the pesticide, as it could get him into legal trouble.
I hope that helped
The subordinate clause is : " which had been dumped into the city water system "