we have beenwork wing them diligently since may of 2012 and the you remembercy of acquiring these licenses is that the installation will be in june of next year and these licenses will allow they are temporary in nature and they will allow us to allow preventive measures that allows the city to protect existing buildings and once we acquire the license we will be able to install the monitoring equipment immediately and use both the monitoring equipment and grouting tubes until the end of construction which, is anticipatedded in december of 2018. thank you. >> thank you. supervisor wiener i think has a question for you. >>> yeah could you provide a more specific response to the gentlemen who just disputed in terms of the property that i guess there was not a response to the letter that ethey sent and i'm just wondering if m ta could respondent to that particular set of concerns. >> well, we have been working we closely with the building owner and, we will continue to do so to reach agreement and some of the issues that were raised dealt with the description of the easement i believe. the bu