How large must the minority or low-income population be to consider EJ?
A very small minority or low-income population in the project, study, or planning area does not eliminate the possibility of a disproportionately high and adverse effect on these populations. You will make your environmental justice determination based on effects, not population size. It is important to consider the comparative effect of an action among different population groups. You need to show the comparative effects on these populations in relation to either non-minority or higher income populations.