Treated water
 14. (1) Where a small drinking water system provides treatment of the water that it provides, including where a public health inspector requires treatment of the water provided by a small drinking water system, the owner and operator of the small drinking water system shall ensure the following: 1. The water treatment equipment is in operation whenever water is being supplied. 2. The water treatment equipment is operated in accordance with the manufacturer’s instructions. 3. The water treatment equipment is operated in a manner that achieves the design capabilities. 4. If the drinking water system’s water treatment equipment provides chlorination or chloramination for secondary disinfection, the equipment is operated so that, at all times and at all locations within the distribution system, i. the free chlorine residual is never less than 0.05 milligrams per litre, if the drinking water system provides chlorination and does not provide chloramination, or ii. the combined chlorine residual is never less than 0.25 milligrams per litre, if the drinking water system provides chloramination. 5. The water treatment equipment is properly maintained in accordance with manufacturer’s recommendations. 6. Written operating instructions for the water treatment equipment are kept near the equipment. 7. Clearly marked adequate supplies of chemicals or other materials necessary for the operation of the water treatment equipment are kept nearby in a safe and secure manner and separate from other chemicals and materials that are not used for the small drinking water system. 8. Replacement parts are kept nearby for those parts of the water treatment equipment that may be expected to require periodic replacement. 9. Maintenance records are created relating to all maintenance conducted on the water treatment equipment and kept for five years or as long as the water treatment equipment to which they relate remains in use, whichever period is longer. These records must contain the date and time of every action taken, the name of the person who took the action and the results of the action. 10. Any written manufacturer operating manuals or instructions that relate to any water treatment equipment must be maintained for five years or as long as the water treatment equipment remains in operation, whichever period is longer.  O. Reg. 319/08, s. 14 (1). (2) If primary disinfection equipment that does not use chlorination or chloramination is provided by a small drinking water system, the owner and operator of the system shall ensure that the disinfection equipment is designed and operated so that, (a) the disinfection equipment has a feature that ensures that no water is directed to users of water treated by the equipment in the event that the equipment malfunctions, loses power or ceases to provide the appropriate level of disinfection; or (b) the disinfection equipment has a feature that causes an alarm to sound immediately in the following locations if the disinfection equipment malfunctions, loses power or ceases to provide the appropriate level of disinfection: (i) the building or structure where the disinfection equipment is installed, (ii) a location where a person is present, if a person is not always present at the building or structure where the disinfection equipment is installed.  O. Reg. 319/08, s. 14 (2). (3) If a small drinking water system provides primary disinfection with ultraviolet light disinfection equipment and not with chlorination or chloramination, the owner and operator of the system shall ensure that any sensors that form part of the equipment’s monitoring system are checked and calibrated in accordance with the manufacturer’s instructions.  O. Reg. 319/08, s. 14 (3).