When a public or semi-private water distribution system is provided, fire hydrants shall be installed by the subdivider as part of the water distribution system. Installation of hydrants shall be accomplished in such manner that each lot is within four hundred (400) feet of the fire hydrant when measured along the center line of the right‑of‑way. No fire hydrant shall be placed on a main smaller than six (6) inches in diameter. Fire hydrants must be located no further than twenty (20) feet from the curb. Hydrants installed shall be of the type approved by the Fire Chief of the district having jurisdiction.