13.2 The Council may independently monitor compliance with the terms of the consent. 13.3 The occupier may request that all independent samples, or composite sample(s), taken by the Council or independent analyst nominated by the occupier, are divided into 3 equal parts on completion of sampling – with: (a) The first portion of each sample, or composite sample, delivered to the occupier, and (b) The second portion of each sample, or composite sample, delivered to the Council or an approved alternative laboratory for analysis, and (c) The third portion of each sample, or composite sample, delivered to the Council or an approved alternative laboratory for retention for a period of not less than 20 working days from the date of receipt, and in such a manner which preserves as far as is reasonably possible the characteristics of the sample. 13.4 Where any portion of a sample, or composite sample, is to be delivered in accordance with clause 13.3 of this Bylaw, it must be delivered within 4 hours of the sampling being completed, and if not, fresh sampling must be undertaken 14 Sampling and Analysis 14.1 Sampling must be undertaken: (a) In accordance with the procedure contained in schedule 3 or some other procedure designed to comply with the relevant British Standard: BS 6068: Section 6.10 or its replacement; and (b) By an authorised officer or by an independent analyst nominated by the occupier and approved by the Council. 14.2 Analysis must be undertaken: (a) In accordance with methods or procedures validated against the current edition of the American Waste Water Association “AWWA Standard Methods for the Examination of Water and Wastewater” or by such alternative method or procedure agreed in writing between the occupier and the Council; and (b) By a laboratory accredited for the purpose, or an alternative laboratory approved by the Council. 14.3 Where an independent analyst or alternative laboratory fails to perform any of the functions relating to sampling or analysis in accordance with this Bylaw or its Schedules, the Council may approve another independent analyst or alternative laboratory to undertake those functions. 14.4 Where an authorised officer or accredited laboratory fail to perform any of the functions relating to sampling or analysis in accordance with this Bylaw or its Schedules, fresh sampling must be undertaken. 15 Dilution 15.1 The occupier must not add, or permit or cause the addition of any water to any tradewaste solely in order to vary the level of any characteristic of the waste except with the consent of the Council. Page 11