An operator shall ensure that the camp's water supply is: Adequate; Easily accessible to the campers; and Of a safe and sanitary quality. Except as provided in §§C and D of this regulation, an operator shall ensure that: The camp's water supply is: From a public or individual water supply system, or connected to a community water system where available; Constructed, protected, operated, and maintained in conformance with: COMAR 26.04.01 and 26.04.04, as evidenced by written documentation from the local health department or the Maryland Department of the Environment as applicable; COMAR 09.20.01, as evidenced by written documentation from the local or State plumbing inspector or a master plumber licensed by the State; and Applicable local ordinances, as evidenced by written documentation from the local approving authority; and Protected against backflow; An individual water supply system: Is capable of supplying a minimum flow and pressure to all fixtures as required by COMAR 09.20.01; and Is installed in accordance with the county master plan for water and sewerage; Pumping and disinfection equipment is housed in a structure that is inaccessible to unauthorized persons; and Hose bibs with threads are equipped with nonremovable back siphonage prevention devices. An operator may provide written documentation from the building owner that there are no outstanding water supply and plumbing violations for a building used or to be used as a youth camp facility that is: Owned by the State or a local government and used by the public for more than 170 calendar days per year; or Owned and operated as a nonpublic school and used as a school for more than 170 calendar days per year. An operator shall ensure that the water supply at a primitive camp is: Filtered and disinfected; and Free from impurities in amounts sufficient to cause disease or harmful physiological effects.