For the situation where the balcony of a new building is completely covered with soil, you can handle it according to the following steps:

1. First, you can contact the developer or property manager to let them know There is soil on the balcony. They may send someone to deal with the problem, which may be the quickest and most direct way.

2. If you choose to solve this problem yourself, you may consider hiring a professional cleaning company or housekeeping service company to handle it. They can provide professional cleaning tools and equipment that can effectively treat the soil on the balcony and ensure that it is neat and clean.

3. Before handling soil on your balcony, you need to ensure your safety. Make sure you use the right tools and equipment and follow correct cleaning methods to avoid any possible health and safety issues.

4. If you have any concerns or uncertainties about cleaning, it is recommended that you consult a professional cleaning company or housekeeping service company, who can provide more specific advice and guidance.

In general, to deal with the problem of new building balconies being completely covered with soil, you need to take appropriate measures according to the specific situation to ensure that the problem is effectively solved, and you must also pay attention to safety and health issues.