Despite receiving approval from the Texas Water Development Board (TWDB) on the change of scope for its wastewater project last week, more challenges might be on the horizon for Wimberley city officials. 

That could include instituting a property tax, proposed by the TWDB as a condition of approval, in order to help pay down a $5.5 million loan from the agency that could cover the cost of the project changes.

In addition to the proposed ad valorem tax to pay for the $5.5 million loan, the city m...