Then, it may be some "kink" in HL2... have you gone to their support site (especially w/ this stopcode & MAYBE a dump file to send them), or their forums?
(It's now beginning to sound more like a HL2 problem really... does it only happen in SOME levels? The reason I ask this is, I customize the HECK out of an OpenGL port of Doom for DOS called JDoom (part of the DoomsDay Engine by Jaakko Keranen) & have had to write him a few times... most of the time? The errors were fixed by removal of customized files (3rd party, won't mention the name because those guys worked hard too to make their product that is 99.999% solid anyhow), because it was only breaking on the last level of Doom I called "DIS". I pulled the 3rd party stuff on the advice of Mr. Keranen the game's designer & poof/voila: Problem gone!))
Do you customize OR tweak the game in ANY way?
Does this happen @ ALL resolutions, and with AntiAliasing/AntiIsotropic off/middle/full on settings??
(Especially the latter: It may be SOME image in the game rendering or setting you use that is NOT meshing there... sounds nutty? It may be a problem in that alone.)
QUESTION - Can you get this game to crash in a SPECIFIC map/level in a certain area? That is how I got my gaming problem solved... then wrote the developer about it & he hit it RIGHT on the head on how to fix it!
(He may have even wrote the guys on the 3rd party pack I mention above about it to help them, I don't know... maybe I should instead of he! )

* Anyhow... try that experiment on resolutions switches, diff. AntiAliasing &/or AntiIsotropics settings & see if it helps!
APK
P.S.=> The reason I mention that, is because of what I saw in a game & what caused it... that info. helped the coder of it to help ME zero-in on the offending problem! apk