Is there a reason you have ${#observations} and ${/observations} outside of the table row?
You should be able to include the start and end tags in the same cell as the data. So for example, the cell under the "Number" column would have ${#observations}${address_num} (Notice that I didn't include a space, so there won't be a space at the beginning of each address number.)
Best,
Katie
“The goal is not simply to ‘work hard, play hard.’ The goal is to make our work and our play indistinguishable.”
- Simon Sinek