There was a recent article that touched on the daily cleanings of the Tenderloin among other things: https://www.sfchronicle.com/bayarea/philmatier/article/Clea

There was a recent article that touched on the daily cleanings of the Tenderloin among other things: https://www.sfchronicle.com/bayarea/philmatier/article/Cleaning-up-SF-s-Tenderloin-costs-a-lot-of-13808447.php?psid=4h5Ks https://www.sfchronicle.com/bayarea/philmatier/article/Clean...