(1) The supplier of a public water supply system is responsible for the proper collection of samples required in this subchapter for microbiological, inorganic, organic, and radiological analysis and submission of the samples to an approved laboratory or to the state laboratory at the times designated by the department. The supplier is also responsible for performing the control tests required in this subchapter. Department personnel, where their programs allow, may assist in the collection, submission and analysis of the samples. Suppliers are also responsible for reporting the results of these samples and control tests in accordance with the requirements of this subchapter. A supplier shall use reporting formats specified by the department for any reporting required in this subchapter.