No person shall make excavation in any street or highway within six feet of any laid water pipe while the ground is frozen or dig up or uncover so as to expose to the frost any water pipe of the city, except under the direction of the city. No person shall place in, near or around any of the water pipes, mains or hydrants of the city water system any dirt, filth, impure substance whatever or any substance or fluid which would render the water impure or unpalatable.
(2005 Code, § 3-127)