1 INTRODUCTION  
2 DATA  
3 METHODS  
3.1 Post Star Burst Selection  
3.2 Parent Sample Definition  
3.3 K+A Galaxy Fraction and the Contamination Correction  
3.4 Environment Measures  
4 COLOR-MAGNITUDE DISTRIBUTION OF POST-QUENCHING GALAXIES  
5 ENVIRONMENTS OF POST-QUENCHING GALAXIES  
6 TESTING FOR LUMINOSITY DEPENDENCE OF THE ENVIRONMENT DISTRIBUTION  
7 DISCUSSION  
7.1 Redshift Evolution of Environments  
7.2 Quenching Probability Among Blue Galaxies  
8 IMPLICATIONS FOR K+A QUENCHING MECHANISMS  
8.1 Cluster-Specific Mechanisms  
8.2 Galaxy-Galaxy Mergers  
8.3 Halo Quenching  
9 SUMMARY AND CONCLUSIONS