Peer Review by Nimesha94!!! First of all, I wasn't sure if I was supposed to do it in the talk section or here. I just did it here so that it's easily accessible.
I know it's a rough draft right now but make sure to insert all CITATIONS before submitting to the official wiki page. I added a picture of the Sacramento River, I couldn't find one of Arcade Creek that I could use. You are more than welcome to change it!!!!
The history section is VERY well developed and it is very interesting. Personally, I wasn't aware that the indigenous community has such an impact on Arcade Creek being classified as being so important. I would break this section into two, starting from "In addition to these artifacts" it will just make it easier to readers in the future to distinguish between paragraphs. This section also has great information so I think the last three mini paragraphs can be disregarded. You already have such great information!!!!!
The introduction to the specific section can be added to the main heading before the history. I will provide great context from the get go and then you can just expand on the climate and the water quality section. It just seems that that introduction to specific sections is just background information that will fit well if mentioned in the beginning.
Even though the biodiversity section is small, you have GREAT DETAIL. Don't change this section!!! Expansion on the Arcade Creek Watershed Plan will provide a great conclusion to the wikipedia page.