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Document ID ca-on-or3wtt-2025-08-20 Title O. Reg. 387/04: WATER TAKING AND TRANSFER URL https://www.ontario.ca/laws/regulation/040153 Jurisdiction /ca/on Subdomain(s) none Language Status completed Analyzed at 2026-05-12 03:47:48.433581+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (26)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#R001administrativereportingmandatoryApplication for Subsystem Classificationdrinking waterThe owner of a municipal residential subsystem shall file an application with the Director for the determination of the type and class of the subsystem.high
#R002administrativereportingmandatoryDisplay of Classification Certificatedrinking waterThe owner or operating authority of a subsystem shall ensure that the certificate of classification of the subsystem is conspicuously displayed at the operator’s workplace or at the premises from which the subsystem is managed.high
#R003administrativeoperationalmandatoryVerification of Operator Certificationdrinking waterThe owner or operating authority of a subsystem shall ensure that every operator employed in the subsystem holds, (a) a certificate applicable to that type of subsystem; or (b) a certificate applicable to that subsystem, in the case of an operator who holds a conditional certificate issued or renewed under section 10.high
#R004administrativeoperationalmandatoryDesignation of Overall Responsible Operatordrinking waterThe owner or operating authority of a municipal residential subsystem shall designate as overall responsible operator of the subsystem an operator who holds a certificate for that type of subsystem and that is of the same class as or higher than the class of that subsystem.high
#R005operationaloperationalmandatoryDuties of Operator-in-Chargedrinking waterAn operator-in-charge shall, (a) take all steps reasonably necessary to operate the processes within his or her responsibility in a safe and efficient manner in accordance with the relevant operations manuals; (b) ensure that the processes within his or her responsibility are measured, monitored, sampled and tested in a manner that permits them to be adjusted when necessary; (c) ensure that records are maintained of all adjustments made to the processes within his or her responsibility; and (d) ensure that all equipment used in the processes within his or her responsibility is properly monitored, inspected, tested and evaluated and that records of equipment operating status are prepared and available at the end of every operating shift.high
#R006reportingreportingmandatoryProvision of Operational Logsdrinking waterThe owner or operating authority of a subsystem shall ensure that logs or other record-keeping mechanisms are provided to record information concerning the operation of the subsystem.high
#R007reportingreportingmandatoryMaintenance of Training Recordsdrinking waterThe owner or operating authority shall ensure that records are maintained for at least five years of all on-the-job practical training completed by the operators employed in the subsystem, including the names of the operators who attend training, the dates of the training, the method used for training, the instructor, the duration of each training session and the subjects covered.high
#R008administrativereportingmandatoryApplication for Redetermination of Classificationdrinking waterIf a subsystem is to be replaced or altered, the owner of the subsystem shall apply for a redetermination of the type and class of the subsystem when approval of the alteration is applied for under subsection 32 (1) or (2) of the Act.When a subsystem is to be replaced or alteredhigh
#R009administrativereportingmandatoryDisplay of Operator Certificatesdrinking waterThe owner or operating authority of a subsystem shall ensure that a copy of the certificate of every certified operator who is employed in the subsystem is conspicuously displayed at the operator’s workplace or at the premises from which the subsystem is managed.high
#R010administrativereportingmandatoryDisplay of Water Quality Analyst Certificatesdrinking waterThe owner or operating authority of a subsystem shall ensure that a copy of the certificate of every certified water quality analyst who is employed in the subsystem is conspicuously displayed at the analyst’s workplace or at the premises from which the subsystem is managed.high
#R011administrativeoperationalmandatoryDesignation of Overall Responsible Operator (Limited Subsystems)drinking waterThe owner or operating authority of a limited subsystem shall designate as overall responsible operator of the subsystem an operator who holds a limited subsystem operator’s certificate for that type of subsystem.Applicable to limited subsystemshigh
#R012administrativereportingmandatoryStrike and Lock-out Plan Submissiondrinking waterAt least 14 days prior to the legal strike or lock-out date, the owner or operating authority of the subsystem referred to in subsections (1) and (2) shall prepare and submit to the Director, in a format approved by the Director, a strike and lock-out plan for the continued safe and efficient operation of the subsystem that includes, at a minimum, (a) a list of all persons proposed to be employed temporarily... and (b) a plan for how the subsystem will be operated during the strike or lock-out...Prior to a legal strike or lock-out datehigh
#R013administrativeoperationalmandatoryDesignation of Operators-in-Chargedrinking waterThe owner or operating authority of a subsystem or a person authorized by the owner or operating authority shall designate one or more operators as operators-in-charge of the subsystem.high
#R014administrativereportingmandatoryMaintenance of OIC Work Recordsdrinking waterThe owner or operating authority or a person authorized by the owner or operating authority shall ensure that records are maintained of the amount of time each operator works as an operator-in-charge.high
#R015prohibitionoperationalmandatoryProhibition on OIT as Operator-in-Chargedrinking waterA person who holds an operator-in-training’s certificate shall not be designated as an operator-in-charge.high
#R016operationalreportingmandatoryStandard for Operational Log Entriesdrinking waterEntries in the logs or other record-keeping mechanisms shall be made chronologically.high
#R017prohibitionreportingmandatoryAuthorization for Log Entriesdrinking waterNo person shall make an entry in a log or other record-keeping mechanism unless the person is an overall responsible operator, an operator-in-charge or is authorized to make an entry by the owner, the operating authority, the overall responsible operator or an operator-in-charge.high
#R018operationalreportingmandatoryIdentification of Log Entry Makersdrinking waterA person who makes an entry in a log or other record-keeping mechanism shall do so in a manner that permits the person to be unambiguously identified as the maker of the entry.high
#R019operationalreportingmandatoryRecord-keeping of Operating Shiftsdrinking waterAn operator-in-charge or a person authorized by an operator-in-charge shall record the following information in the logs or other record-keeping mechanisms in respect of each operating shift: 1. The date, time, and shift designation. 2. Names of operators on duty. 3. Departures from normal procedures. 4. Special instructions for departures. 5. Unusual or abnormal conditions. 6. Equipment out of service or repaired.high
#R020administrativereportingmandatoryAccessibility and Retention of Operational Recordsdrinking waterThe owner or operating authority shall ensure that logs and other record-keeping mechanisms are accessible at the subsystem, (a) for at least five years after the last entry in it was made, in the case of a log or record-keeping mechanism that is kept in a book or document form or kept on a similarly fixed basis; or (b) for at least five years after each entry in it was made, in the case of a log or record-keeping mechanism that is kept on a loose-leaf or electronic basis or kept on a similarly continuous basis.high
#R021operationaloperationalmandatoryProvision of Operations and Maintenance Manualsdrinking waterThe owner or operating authority of a subsystem shall ensure that operators and maintenance personnel in the subsystem have ready access to the comprehensive operations and maintenance manuals that contain plans, drawings and process descriptions sufficient for the safe and efficient operation of the subsystem.high
#R022operationaloperationalmandatoryOperator Training Compliancedrinking waterSubject to subsection (2), the owner or operating authority of a subsystem shall take reasonable steps to ensure that every operator employed in the subsystem completes the annual number of hours of training set out in the Table to this section in each of the three years for which the operator’s certificate is valid.high
#R023operationaloperationalmandatoryWater Quality Analyst Training Compliancedrinking waterSubject to subsection (2), the owner or operating authority of a subsystem shall take reasonable steps to ensure that every water quality analyst employed in the subsystem completes the annual number of hours of training set out in the Table to this section in each of the three years for which the water quality analyst’s certificate is valid.high
#R024administrativereportingmandatoryMaintenance of Water Quality Analyst Training Recordsdrinking waterThe owner or operating authority shall ensure that records are maintained for at least five years of the on-the-job practical training completed by the water quality analysts employed in the subsystem, including the names... dates... method... instructor... duration... and subjects covered.high
#R025administrativereportingmandatoryNotification of Emergency Personnel Employmentdrinking waterWithin seven days of employing the first of one or more persons described in subsection (1), the owner or operating authority of the subsystem shall submit in writing to the Director, in the manner and form approved by the Director, information about the circumstances leading to the person’s or persons’ employment in the subsystem.When employing non-certified personnel during emergency/strike situations under section 33high
#R026administrativereportingmandatoryPost-Emergency Reporting of Personneldrinking waterAn owner or operating authority that employs a person under subsection (1) shall provide a written report to the Director within 90 days of the end of the circumstances described in clause 32 (1) (a) or (b) that includes... [specific person and duty details].After the conclusion of emergency personnel employmenthigh

P Quantitative Requirements (31)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#R027operationaloperationalmandatorySmall drinking water system seasonal shutdown thresholddrinking waterrequirement>= 60 daysDefinition of systems that do not operate year-round for regulatory classificationConsecutive days in every calendar year or fiscal periodhigh
#R028chemicaloperationalmandatoryRDL: Cadmium (Soil)agricultural waterrequirement1 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R029chemicaloperationalmandatoryRDL: Chromium (Soil)agricultural waterrequirement12 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R030chemicaloperationalmandatoryRDL: Cobalt (Soil)agricultural waterrequirement2.5 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R031chemicaloperationalmandatoryRDL: Copper (Soil)agricultural waterrequirement10 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R032chemicaloperationalmandatoryRDL: Lead (Soil)agricultural waterrequirement10 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R033chemicaloperationalmandatoryRDL: Molybdenum (Soil)agricultural waterrequirement2.5 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R034chemicaloperationalmandatoryRDL: Nickel (Soil)agricultural waterrequirement5.0 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R035chemicaloperationalmandatoryRDL: Zinc (Soil)agricultural waterrequirement25 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R036chemicaloperationalmandatoryRDL: Mercury (Soil)agricultural waterrequirement0.05 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R037chemicaloperationalmandatoryRDL: Arsenic (Soil)agricultural waterrequirement1.4 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R038chemicaloperationalmandatoryRDL: Selenium (Soil)agricultural waterrequirement1 µg/gReporting Detection Limit (RDL) for laboratory analysisSoil matrixhigh
#R039physicaloperationalmandatoryRDL: Total Solids (GNF)agricultural waterrequirement50 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R040chemicaloperationalmandatoryRDL: Ammonia + Ammonium Nitrogen (GNF)agricultural waterrequirement0.01 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R041chemicaloperationalmandatoryRDL: Nitrate + Nitrite Nitrogen (GNF)agricultural waterrequirement0.04 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R042chemicaloperationalmandatoryRDL: Cadmium (GNF)agricultural waterrequirement0.003 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R043chemicaloperationalmandatoryRDL: Chromium (GNF)agricultural waterrequirement0.2 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R044chemicaloperationalmandatoryRDL: Cobalt (GNF)agricultural waterrequirement0.03 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R045chemicaloperationalmandatoryRDL: Copper (GNF)agricultural waterrequirement0.10 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R046chemicaloperationalmandatoryRDL: Lead (GNF)agricultural waterrequirement0.015 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R047chemicaloperationalmandatoryRDL: Molybdenum (GNF)agricultural waterrequirement0.005 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R048chemicaloperationalmandatoryRDL: Nickel (GNF)agricultural waterrequirement0.01 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R049chemicaloperationalmandatoryRDL: Zinc (GNF)agricultural waterrequirement0.5 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R050chemicaloperationalmandatoryRDL: Mercury (GNF)agricultural waterrequirement0.5 µg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R051chemicaloperationalmandatoryRDL: Arsenic (GNF)agricultural waterrequirement0.01 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R052chemicaloperationalmandatoryRDL: Selenium (GNF)agricultural waterrequirement0.005 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R053chemicaloperationalmandatoryRDL: Boron (GNF)agricultural waterrequirement0.05 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R054chemicaloperationalmandatoryRDL: Sodium (GNF)agricultural waterrequirement0.5 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R055chemicaloperationalmandatoryRDL: Potassium (GNF)agricultural waterrequirement0.05 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R056chemicaloperationalmandatoryRDL: Phosphorus (GNF)agricultural waterrequirement0.1 mg/LReporting Detection Limit (RDL) for greenhouse nutrient feedwater (GNF)GNF matrixhigh
#R057chemicaloperationalmandatoryRDL: Total Kjeldahl Nitrogen (TKN)agricultural waterrequirement0.05 mg/LReporting Detection Limit (RDL) for TKN in GNF or liquid ASM mixturesGNF/liquid ASM mixtures onlyhigh

D Definitions (0)

No definitions.