Eugene Volokh is the Thomas M. Siebel Senior Fellow at the Hoover Institution at Stanford, and the Gary T. Schwartz Distinguished Professor of Law Emeritus and Distinguished Research Professor at UCLA School of Law. Naturally, his posts here (like the opinions of the other bloggers) are his own, and not endorsed by any institution. He is also the co-host of the Free Speech Unmuted podcast.
Urinating in Public "Discarding or Depositing Any Rubbish, Trash, Garbage, Debris or Other Refuse"
Oregon law apparently doesn't ban public urination -- but it does ban littering, especially when it "create[s] an objectionable stench."