Periodic checks
7. (1) The owner of a water treatment or distribution system shall ensure that all water treatment equipment is checked at least once each week by a trained person to confirm proper functioning and that, for each check, a record is made of the date and time of the check, the name of the person who performed the check and the results of the check. O. Reg. 505/01, s. 7 (1). (2) Subject to subsection (5), if chlorination equipment described in clause 4 (2) (a), 4 (3) (a) or 4 (6) (a) is used in a water treatment or distribution system that serves a designated facility, the owner of the system shall ensure that, (a) a water sample is taken at least once every day from the water distribution system or plumbing that serves the designated facility; (b) the sample is tested immediately for free chlorine residual by a trained person using an electronic direct readout colourimetric or amperometric chlorine analyzer or a device described in subsection (3); and (c) a record is made of the date and time the sample was tested, the name of the person who performed the test and the results of the test. O. Reg. 505/01, s. 7 (2). (3) A device other than an electronic direct readout colourimetric or amperometric chlorine analyzer may be used to perform tests under clause (2) (b) if, based on an inspection of the device and on a review of relevant records and documentation, a professional engineer certifies in writing that it is equivalent to or better than an electronic direct readout colourimetric or amperometric chlorine analyser for performing those tests, having regard to accuracy, reliability and ease of use. O. Reg. 505/01, s. 7 (3). (4) Subject to subsection (5), if filtration is used in a water treatment or distribution system, the owner of the system shall ensure that, (a) a sample of water that has not been disinfected is taken at least once every day from a point in the water treatment or distribution system where all filtration has been completed; (b) the sample is tested immediately for turbidity by a trained person using a turbidity meter that measures turbidity in Nephelometric Turbidity Units (NTU); and (c) a record is made of the date and time the sample was tested, the name of the person who performed the test and the results of the test. O. Reg. 505/01, s. 7 (4). (5) An owner of a water treatment or distribution system who is required to comply with subsection (2) or (4) may instead sample and test water using automated sampling and testing equipment if the following requirements are met: 1. The automated equipment must take water samples at least as often as samples would otherwise be taken under subsection (2) or (4), as the case may be. 2. The water samples must be taken from locations from which samples would otherwise be taken under subsection (2) or (4), as the case may be. 3. The automated equipment must test the water samples, immediately after they are taken, for free chlorine residual or turbidity, as the case may be, using an analyzer or device referred to in clause (2) (b) or a meter referred to in clause (4) (b), as the case may be. 4. If any of the following circumstances arise, the automated equipment must cause an alarm to sound at a location where a person designated by the owner for the purpose of paragraph 8 is available at all times to hear the alarm: i. A test of free chlorine residual under paragraph 3 shows a concentration of less than 0.05 milligrams per litre. ii. A test of turbidity under paragraph 3 shows a level of more than 1.0 Nephelometric Turbidity Units (NTU). iii. The automated equipment malfunctions or loses power. 5. The automated equipment must also cause an alarm to sound at each designated facility served by the water treatment or distribution system, if any of the circumstances described in paragraph 4 arise. 6. The automated equipment must record the date, time and results of every test performed under paragraph 3 and must transmit the record to a location where a person designated by the owner for the purpose of paragraph 8 will examine the record. 7. The record made of a test under paragraph 3 must be examined on the day of the test by a person designated by the owner for the purpose of paragraph 8. 8. A person designated by the owner for the purpose of this paragraph must promptly dispatch a trained person to the water treatment or distribution system if an alarm sounds under paragraph 4, a record of a test result indicates that an alarm should have sounded, or a record of a test result is not available for examination when it would normally have been expected to be available. 9. A trained person must arrive at the water treatment or distribution system within four hours after being dispatched under paragraph 8, unless water use has ceased at all designated facilities served by the water treatment or distribution system. O. Reg. 505/01, s. 7 (5). (6) If the only designated facilities the water treatment or distribution system serves are schools, private schools and day nurseries, subsections (2) and (4) and paragraph 7 of subsection (5) apply only on days when a school, private school or day nursery is open. O. Reg. 505/01, s. 7 (6). (7) Until the date that the owner of the water treatment or distribution system is required to comply with section 4, the references in this section to trained persons shall be deemed to be references to any person. O. Reg. 505/01, s. 7 (7).