Not a resent one, though ...
Published by Karina GOnzalez Bret
Not a resent one, though feces with coronavirus had been found in sewage (cannot find the reference, which I read some days ago).
These are from some years ago for other strains:
https://link.springer.com/article/10.1007/s12560-008-9001-6
https://www.sciencedirect.com/science/article/pii/S0043135409000785
https://link.springer.com/chapter/10.1007/978-3-030-17819-2_5
https://www.researchgate.net/publication/225390936_Survival_of_Coronaviruses_in_Water_and_Wastewater
And this report: https://www.mwwa.net/resources/2020_Coronavirus_Info_Operators%20(002).pdf