Control of work system

Control of work system

As a Watercare contractor, it’s essential that you and your staff work safely on our sites and assets at all times. If you need to work on one of our sites, you will need to provide a work pack detailing the scope of your work, the hazards and risks involved and the planned controls to ensure that the work will be undertaken safely.

COVID-19 vaccinations

The policy

  • On 1 December 2021, we implemented our new COVID-19 vaccination policy which means before you access our sites, we require assurance in writing from your organisation that all your employees and subcontractors will comply with the policy. The policy states that anybody entering a Watercare site must be fully vaccinated against COVID-19. Fully vaccinated is defined as having received two doses of the COVID-19 vaccine (currently in New Zealand this is the Pfizer/BioNTech COVID-19 vaccine). Fully vaccinated also includes all vaccines approved by the World Health Organisation to accommodate those vaccinated overseas. The policy also covers vaccine boosters approved by MOH as part of the requirement to be fully vaccinated.

Which sites does the policy apply to?

  • All Watercare sites including Waikato District Council sites that are operated by Watercare. That includes plants, depots, offices, construction sites and temporary sites established by our teams working in the field e.g. maintenance, sampling teams. Signage is visible at all sites as a final reminder to all who enter that full COVID-19 vaccination is required.

Important documents

COVID-19 vaccination policy

Vaccination guidance for contractors

Risk assessment maintenance sites

Risk assessment Lab

Risk assessment infrastructure sites

Risk assessment office sites

Risk assessment Ops and MD sites


Online forms

Click the links below to access

Symptomatic worker form for site contractors

Proof of COVID-19 vaccination

Permit to Work process and forms updated and implemented 1 July 2019

Work pack requirements

Our control of work system is made up of three critical risk-management processes which support effective work planning and safe execution.  These processes make up the components of your work pack.

  • Risk assessment
  • Permit to work
  • Isolation of energy sources

As the person in charge of the work, you are responsible for developing the work pack and returning it to your Watercare representative. Refer: Control of work - user manual


  1. Scope the work and fill in the job safety analysis form (JSA)
  2. Attach relevant work permits
  3. Include any supporting documents
  4. Return the work pack to your Watercare representative
Instruction Documents and forms
All work undertaken on a Watercare operational site or asset must have a risk assessment.  

Note: Contractors may insert their own job safety analysis template into section 6 of the Watercare JSA template, provided it contains a similar risk assessment framework as the Watercare version.
Risk assessment
Depending on the work activity, you may also require a work permit.  

Use the Permit to Work decision trees in the job safety analysis – user guide to determine if your work requires a permit.
Permit to Work

All isolation of our assets must be planned with your Watercare representative.  

Only personnel who have been trained and are competent in the isolation process can lock out operational equipment.

Contractors must verify that all hazardous energy has been isolated prior to commencing work.
To request an isolation, fill in the request selection of the Isolation Certificate and give to your Watercare representative.
Our control of work system provides the tools and framework for how we manage and authorise work.  It’s our way of making sure all safety precautions are in place before work starts Control of work – work flow
Control of work - user manual
Our minimum requirements for hazard controls are called key requirements, and these are applicable across all our operations, including work that is carried out by contractors. Key requirements for managing risk: