In this question on the Travel SE OP is asking about こみ収集ステーション that he has seen, and provided this image of a notice on one of those from Higashidori, Aomori:
The pic is blurry, but not so bad that a missing 濁点 could be attributed to the quality of the pic. Why is it 「こみ」 instead of 「ごみ」 here?