Civil Rights Act does not ban affirmative action. As long as its aiming to correct a statistical imbalance, which a 10-1 ratio is certainly is. (And a few more points, but nothing to conclude your assertion is certain)
As the two cases I cited indicate, affirmative action is not illegal, but completely excluding candidates because of their membership in a protected class, or any type of quota for minorities is illegal. Affirmative action can be applied during the hiring process to favor some candidates, but not to completely exclude some class of candidate.