So some more info came to light recently. This problem began at the end of july. That is when I pulled my last succeful harvest and started planting the next.

Water shortage influence on
water quality
Q. Does the drought affect the taste of my water?
A. Yes, it does. Because of the water shortage in
Northern California, along with issues regarding the
Delta Smelt, our water supply from the State Project
Water (SPW) in Northern California has been cut.
Lately, all of Helix water is coming from the Colorado
River and local sources. The mineral content from the
Colorado River has a considerably higher salt content
than SPW. What this amounts to is a ā??harderā?? water
delivered to our customers. This higher mineral
content affects the taste and increases detergent and
soap use. Some describe it as a mineral-tasting water;
others even describe it as metallic in taste. However,
the increased hardness in no way affects the health
and safety of your water.

and this

When the region's water supplies were cut last July, the effects were muted here because of the San Diego County Water Authority's steady source: paying farmers in Imperial County to fallow their fields and buying the water that would otherwise be used for irrigation