These records shall indicate when, where and by whom these tests were made. The standard method of testing recommended by the American Public Health Association shall be followed as regards the examinations and collection of water and any departure therefrom shall be specifically stated. Whenever tests made by the State Board of Health, the utility or made for any other purposes disclose the presence of bacillus coli or any unnecessarily high bacterial count, the utility shall immediately take action to make its water supply safe for human and domestic purposes.
39 Miss. Code. R. 3-5-59