Water Safety Plans


Water Safety Plans (WSP) - a legislative requirement

The Health Act 1956 requires certain drinking-water suppliers to develop a Water Safety Plan (WSP) for their water supply. Guiding material released by the Ministry of Health being the ‘WSP Framework’ and the ‘WSP Handbook’ has meant that fundamentally water suppliers need to reconsider the way they develop WSPs to meet legislative requirements.


WHAT do Water Safety Plans achieve?

Water safety planning strengthens the focus on preventive measures across the whole drinking-water supply system, moving away from a reliance on after-the-event end-point water quality testing. It promotes a multi-barrier approach to managing risks, which safeguards against the failure of any one barrier. Water safety planning supports continuous improvement and guides day-to-day activities now and into the future.

The essential requirements to achieving an approved WSP should be based around the “10 Components”:

the 10 components.png

How Wai Comply can assist with developing Water Safety Plans?

At Wai Comply our WSPs are specifically formulated and tailored to each water supplier ensuring that the risk assessment and risk management process meets legislative requirements but more importantly thoroughly describes and demonstrates ‘how’ water suppliers are keeping their customers safe. Wai Comply ensures that water suppliers are involved every step of the way when it comes to developing WSPs to instil confidence in the design and implementation of the WSP.

Our WSPs are designed to meet the latest industry requirements (i.e. the Framework and the Handbook). Through the WSP development process we are also able to include the identification and implementation of ‘Critical Control Points’ (CCPs). CCPs ensure current treatment barriers are operating and controlled in a way which prevents contamination events occurring therefore ‘having confidence that drinking-water is safe.

Wai Comply can assist in the development of WSP’s to aid our clients in achieving compliance with the Health Act 1956.

Gisborne District Council engaged Wai Comply for the Water Safety Plans rewrites of two of our water supplies. From facilitating workshops with key stakeholders, writing the plans to assistance in liaising with the Drinking Water Assessor, they knew what to do and then did it on time and within the agreed budget."

Marcus Koll - Team Leader - Water