Is this use of 「こみ」 instead of 「ごみ」 in 「ごみ収集ステーション」 accidental or a variation?


In [this question on the Travel
SE](https://travel.stackexchange.com/q/103754/53124) 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:

[![enter image description
here](https://i.stack.imgur.com/3hE29.png)](https://i.stack.imgur.com/3hE29.png)

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?




I've [found a box that shows the
dakuten](https://www.google.co.uk/maps/@41.1332027,141.3908915,3a,15y,102.99h,89.52t/data=!3m6!1e1!3m4!1sBsvu7wkLKYPh05rpJtOQRA!2e0!7i13312!8i6656?hl=en),
it's barely visible but it's there.

[![enter image description
here](https://i.stack.imgur.com/BP5wt.png)](https://i.stack.imgur.com/BP5wt.png)

To confirm this, I did a bit of digging around and double checked on the
[Higashidori government
website](http://www.vill.higashidoori.lg.jp/sub02/cat200037.html) where it
uses 'ごみの収集'.




It's likely a typographical error, or the 濁点 is incredibly illegible in the
image. こみ収集 doesn't make sense enough that my keyboard auto-corrects to
katakana (doesn't make sense either).

