Assembly Bill 1668 is what they’re referring to. It doesn’t say you can’t have a shower and do laundry on the same day but it limits usage to only 55 gallons per person per day.
“To give you perspective on how much water basic chores require, the station noted an eight-minute shower uses about 17 gallons of water, a load of laundry up to 40, and a bathtub can hold 80 to 100 gallons of water.” http://www.foxnews.com/opinion/2018/06/07/tammy-bruce-californias-new-water-rules-are-making-people-flee-golden-state.html
That is what I tried to explain in #89. Maybe I was writing in cockney rhyming slang or something, no it was plain old English.
And there are no penalties for individuals, only on water districts.