The following individuals may collect official samples: A dairy plant sampler; An industry plant sampler; A bulk milk hauler/sampler; and A certified Industry Dairy Farm Inspector. An individual collecting official milk samples shall collect samples in accordance with the Grade “A” Pasteurized Milk Ordinance, Section 6 and Appendix B. The Secretary shall evaluate the sampling and examination procedures of manufactured grade milk and milk products to ensure that the sampling and examination procedures are conducted according to the standards set forth in the Grade “A” Pasteurized Milk Ordinance, Section 6 and Appendix B. Can milk shall be sampled and analyzed in accordance with Milk for Manufacturing Purpose and Processing, Section C12(2)(ii) and C12(3)(ii). Under the standards set forth in the Grade “A” Pasteurized Milk Ordinance, Item 7p. Administrative Procedures, and Appendix D, the Secretary shall conduct bacteriological testing of individual water supplies: Upon initial approval of the physical structure; Every 6 months after initial approval; and When a repair or alteration of the water supply system has been made. The Secretary shall record and retain for at least 5 years all sample analysis results required under this regulation.