Cooling tower water treatment and legionella sampling
Chemistry converts; microbiology does not. Let the controller run the chemistry and log it, and keep the sampling calendar because the lab certificate is the compliance record.
- Condition that replaces the interval
- Partly. Conductivity, pH, biocide residual and blowdown can be controlled and logged continuously; microbiological sampling stays on its interval because a lab result is the evidence the regulator wants.
- Reading that proves it
- Conductivity, pH, oxidising biocide residual, dip slide or TVC result, legionella sample result
- Why the interval stays
- Cooling tower registration and periodic legionella sampling are required under state public health regulations in Australia and under HSG274 (COSHH) in the UK; monthly sampling is the usual minimum.
- Evidence an auditor accepts
- Water treatment log with the daily chemistry and the monthly laboratory results per tower
- First move
- Log the controller readings into the same register as the lab results so an inspector sees the chemistry that preceded each sample.
What it is evidence for
Clause references from a human-verified corpus licensed to Maintenance Log Converter. A clause marked reference is named, not reproduced.
Statutory intervals that must stay on the calendar ISO 45001:2018 9.1.2 · ISO 45001:2018 6.1.2.1 · ISO 45001:2018 8.1.2 · ISO 45001:2018 8.1.4.2 · ISO 55001:2014 4.2 · ISO 55001:2014 8.1
ISO 45001:2018 9.1.2 Evaluation of complianceThe organization establishes, implements and maintains processes for evaluating compliance with legal and other requirements, determining the frequency and methods for evaluation, evaluating compliance and taking action if needed, maintaining knowledge and understanding of its compliance status, and retaining documente...
ISO 45001:2018 6.1.2.1 Hazard identificationEstablish, implement and maintain a process for hazard identification that is ongoing and proactive. The process shall take into account work organization and social factors, routine and non routine activities, past incidents, emergency situations, people including workers, contractors, visitors and others, design of w...
ISO 45001:2018 8.1.2 Eliminating hazards and reducing OH&S risksThe organization establishes, implements and maintains processes for the elimination of hazards and reduction of OH&S risks using the hierarchy of controls: eliminate the hazard; substitute with less hazardous processes, operations, materials or equipment; use engineering controls and reorganization of work; use admini...
ISO 45001:2018 8.1.4.2 ContractorsThe organization coordinates its procurement processes with its contractors to identify hazards and to assess and control the OH&S risks arising from the contractors' activities and operations that impact the organization, from the organization's activities and operations that impact the contractors' workers, and from ...
ISO 55001:2014 4.2 Understanding the needs and expectations of stakeholdersThe organization determines the stakeholders relevant to the asset management system, their requirements and expectations with respect to asset management, the criteria for asset management decision-making, and the stakeholder requirements for recording financial and non-financial information and for reporting it inter...
ISO 55001:2014 8.1 Operational planning and controlThe organization plans, implements and controls the processes needed to meet requirements and to implement the actions determined in planning, including the actions to address risks and opportunities and the asset management plans. It establishes criteria for the processes, implements control in accordance with the cri...
Do this for your whole schedule
Paste your maintenance schedule or log and get this classification for every line at once, with the findings, the overdue items and the clauses the register is evidence for. First 15 items free, no account.
Convert my scheduleLocal exhaust ventilation thorough examination · Hot and cold water temperature and outlet flushing