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Hi there, apologies for the delayed update on this post. I wanted to be sure the repairs I chose to do were effective and since the car passed the emissions test today it seems like everything was successful.
Per @sh0rtlife's suggestion, I went ahead and replaced the purge valve solenoid, which proved to be a very simple swap. I chose to simply buy the solenoid new (~$60), as opposed to going out to salvage one. While replacing the solenoid, I noticed that a couple of the hoses feeding the solenoid were without hose clamps so I also added clamps to those hoses to ensure secure connection.
Additionally, I went ahead and replaced my gas cap with a new locking cap. I don't really believe the gas cap was involved in these codes, but the cap was on the older side and I prefer the security of a locking cap.
In the end, I didn't go through the trouble of confirming whether the issue was only with the solenoid or if the unclamped hoses were leaking and thus the primary source of failure, but replacing the valve and clamping the hoses has resulted in the codes not coming back and as a I mentioned above the vehicle passed the CA emissions testing this morning.
Thanks to everyone for their help and suggestions! Definitely saved myself some money by investigating and fixing this myself. This was the first mechanical DIY fix I've ever done on a vehicle and it has been a big confidence boost to be able to get it right!
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