Ningjin county has 12 liter of water.

Ningjin county water supply company. Ningjin Water Plant of Ningjin County Water Supply and Drainage Company is well-organized and well-equipped, mainly engaged in tap water supply, production of purified water products, and water supply for enterprises and companies, among which aquatic products use 3 liters, 6 liters, and 12 liters, so Ningjin County Water Supply Company has 12 liters of water. Ningjin County Water Supply Company was established in 1984, which is an enterprise-managed institution and undertakes the public water supply task of the whole city.