It’s been raining every day this week except today, and often times torrentially. Last Friday, there was a warning to boil water because of unusual amounts of sediment washed into the water system from those downpours.
As a practical matter, I noticed that in the past week, the tub has been noticeably scummier. I like to use Dr. Bronner Castile soaps because I find that they are economical, gentle to the skin, and are the most effective in dissolving dirt, but being real soap, as compared to the inorganic detergent surfactants in your typical bath bar, Dr. Bronner’s will react to the minerals in “hard” water. I take the “scumminess” to indicate that the water is probably harder than normal.