C182 PLT ENCOUNTER NMAC ON FINAL WITH ACFT DEPARTING OPPOSITE DIRECTION FROM THE SAME RWY. DEPARTING ACFT MADE NO CTAF/UNICOM REPORTS PRIOR TO DEP.

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I ENTERED R TFC TO RWY 15 AT O85 FROM A 45 DEG ENTRY TO DOWNWIND TO BASE TO FINAL MAKING POS RPTS ON CTAF ON THE 45 DEG ENTRY; DOWNWIND; BASE; AND FINAL. AT LEAST 1 OTHER ACFT LNDG AHEAD OF ME WAS USING RWY 15. AN ESTIMATED 4000 FT OR LESS FROM THE RWY I NOTICED ANOTHER HIGH WING ACFT TAKING OFF ON THE OPPOSING RWY (RWY 33). WHEN I SAW HIM; HE WAS ABOUT MID-FIELD AND HAD ALREADY ROTATED AND WAS IN AN INITIAL CLB. I NOTICED THAT HE INITIATED A R TURN AND I ALSO VEERED TO THE R TO INCREASE THE DISTANCE BTWN US. WHILE HIS CHOICE OF RWY; FAILURE TO YIELD TO A LNDG ACFT; AND FAILURE TO ANNOUNCE HIS INTENTIONS ON FREQ WERE RECKLESS; HIS CORRECTION WAS PROPER. I REALIZED THAT WHILE WE WOULD BE CLOSE; WE WOULD NOT COLLIDE. HE PASSED OFF MY L SIDE APPROX 200 FT HORIZONTALLY AND 50 FT BELOW ME. AFTER LNDG; A PLT BASED AT THE FIELD STATED THAT HE HAD BEEN MONITORING THE FREQ AND SAW THE EVENTS AND THAT HE (THE OFFICER) HAD HEARD MY RPTS; BUT NEVER HEARD THE OTHER ACFT. I TOLD THE OFFICER THAT I HAD NOT HEARD ANY RPTS BY THE OTHER ACFT. THE OFFICER STATED THAT THE OTHER ACFT WAS A MAULE AND THAT HE WAS PLANNING TO TALK TO THE PLT THAT HE BELIEVED WAS BASED ON THE FIELD.