the construction in reasonable condition. / In the event that Westview does not remove the Temporary Force Line within the said sixty day period, then Genstar may, at its sole discretion, cause its servants, agents or contractors to remove the Temporary Force Line at the sole cost of Westview. Westview agrees that any and all costs incurred in the construction and removal of the Temporary Force Line will be the sole responsibility of westview. In conjunction with performing Westview's obligations under clause 8.1, Sandcastles agrees to provide Genstar with an irrevocable bank guarantee (the “Bank Guarantee") drawn on a Canadian chartered bank in the amount of SEVENTY THOUSAND DOLLARS ($70,000.00), ina form substantially as attached hereto as Schedule “p", aS security for the satisfactory completion of the installation and removal (to the extent necessary) of the Temporary Force Line and the Proposed Gravity Sewer, the returning of that portion of Genstar's lands which has been disturbed by such installation or removal to a reasonable condition which allows Genstar to proceed with its development of such portion of Genstar's Lands, the discharge and cancellation of any builders’ liens which may arise during the course of installation and removal (to the extent necessary) of the Temporary Force Line and the Proposed Gravity Sewer by Westview, its Servants, agents or contractors, and the costs incurred by Genstar in the event of default by Westview in removing the Temporary Force Line within the time stipulated in clause 8.1. Westview also agrees to cause Genstar and its servants to be added as a named insured on Sandcastles‘ comprehensive liability insurance policy in respect of the installation of the Temporary Force Line and the Proposed Gravity Sewer by Westview, its Servants, agents, or contractors. With reference to clause 8.2, Sandcastles agrees that Genstar shall be at liberty =o draw on the Bank Guarantee, to the extent reasonaliy necessary, if after being given 14 days prior written notice by Genstar Westview fails: (a) to discharge and cancel any builders' liens filed against Genstar's lands which may arise as a result of the installation or removal of the Temporary Force Line and the Proposed Gravity Sewer by Westview, its servants, agents or contractors; (b) to reimburse Genstar for any property damage incurred by or third party claims made against Genstar as a result of the installation or removal of the Temporary Force Line and the Proposed Gravity Sewer by Westview, its Servants, agents or contractors;