This question is obviously intended for those that live in places where tap water is “safe to drink.”
I live in Southern California, where I’m at the end of a long chain of cities. Occasionally, the tap smells of sulfur, hardness changes, or it tastes… odd. I’m curious about the perspective of people that are directly involved and their reasoning.
The asphalt company is basically all of Los Angeles’ roads. They came up with a way to use recycled asphalt grindings in a MUCH higher percentage of the mix in a process that involved soaking it with diesel fuel for a specific amount of time and mixing it. The loader operator feeding the plant had just enough down time to do the soak and mixing process. This recycled grindings mix was added to the hot aggregate strait out of the drum burner right at the liquid asphalt mixing point. If I recall correctly (after two decades), the allowed limit for recycle was 15% according to the state, but they were able to run between 30%-45% recycle with their methods and it was undetectable in the company engineering test lab. You be the judge of how that falls into corruption versus innovation.
Interesting, thanks for the context. I don’t know anything about asphalt, but if it didn’t cause any health or safety issues I’d place it on the innovation end of the spectrum. I’d be interested in things like how the spent diesel fuel was disposed of and if any petro chems would leach into stormwater from asphalt made this way.