compensation scheme, be made without first consulting the undertaker and considering their  representations.  (5) SGN must use its reasonable endeavours to mitigate in whole or in part and to minimise any  costs, expenses, loss, demands, and penalties to which the indemnity under this paragraph 114  applies. If requested to do so by the undertaker, SGN must provide an explanation of how the  claim has been minimised. The undertaker shall only be liable under this paragraph 114 for claims  reasonably incurred by SGN.  115.  Save to the extent provided for to the contrary elsewhere in this Part of this Schedule or by  agreement in writing between SGN and the undertaker, nothing in this Part of this Schedule  affects the provisions of any enactment or agreement regulating the relations between the  undertaker and SGN in respect of any apparatus laid or erected in land belonging to the undertaker  on the date on which this Order is made.  116. —(1) Where in consequence of the proposed construction of any of the authorised works,  the undertaker or SGN requires the removal of apparatus under sub-paragraph 110(2) or SGN  makes requirements for the protection or alteration of apparatus under paragraph 112, the  undertaker must use its best endeavours to co-ordinate the execution of the works in the interests  of safety and the efficient and economic execution of the authorised development and taking into  account the need to ensure the safe and efficient operation of SGN’s undertaking and SGN must  use its best endeavours to co-operate with the undertaker for that purpose.  (2) For the avoidance of doubt whenever SGN’s consent, agreement or approval is required in  relation to plans, documents or other information submitted by SGN or the taking of action by  SGN, it must not be unreasonably withheld or delayed.  117.  If in consequence of the agreement reached in accordance with sub-paragraph 109(1) or the  powers granted under this Order the access to any apparatus (including appropriate working areas  required to reasonably and safely undertake necessary works by SGN in respect of the apparatus)  is materially obstructed, the undertaker must provide such alternative rights and means of access  to such apparatus as will enable SGN to maintain or use the apparatus no less effectively than was  possible before such obstruction.  118.  Save for differences or disputes arising under sub-paragraphs 110(2), 110(4) and 111(1)  and paragraph 109 any difference or dispute arising between the undertaker and SGN under this  Part of this Schedule must, unless otherwise agreed in writing between the undertaker and SGN,  be determined by arbitration in accordance with article 42 (procedures in relation to certain  approvals etc.).  119.  The plans submitted to SGN by the undertaker pursuant to sub-paragraph 112(1) must be  sent to SGN at 1 Forbury Place, 43 Forbury Road, Reading, Berkshire RG1 3JH or such other  address as SGN may from time to time appoint instead for that purpose and notify to the  undertaker.  114 Notices  Arbitration  Access  Enactments and agreements  Co-operation 