Water Suppliers


Water Safety Plans (WSP)

The Health Act 1956 requires that all community drinking-water supplies serving populations greater than 500 persons to develop a Water Safety Plan (WSP) for their drinking-water supply.

A WSP is a written document that aims to assess and manage risks from contamination events or general failures associated with a specific drinking-water supply. Risks are identified from the water supply catchment right through to when the water is supplied to the public (a ‘catchment to tap’ philosophy). 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 ‘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 which 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.

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


Drinking water standards for new zealand - requirements

Investigation and Management of Transgression Responses - Responding to drinking-water transgressions as required by law can be very complex. Given Wai Comply's directors have worked as accredited Drinking Water Assessors, we understand and therefore can apply, the immediate requirements to safe guard the drinking-water supply. Wai Comply can assist drinking-water suppliers to develop communications plans, remedial response plans, and develop final reports which adhere to the requirements of the Standards.

Catchment Risk Assessments - Undertaking a catchment risk assessment (CRA) is a process required by the Drinking-water Standards for New Zealand. This should be done every 5 years and is based on a water supplier undertaking a review of their water supply catchments and determining what sources of contamination may exist in the catchment and therefore could be present in the source water. The CRA process allows for the determination of “log credits” which determines what treatment is required to remove, inactivate, or kill any pathogens. CRAs can be completed as part of a WSP or as a standalone requirement.



Compliance Strategies and Reporting Requirements

Compliance Strategies - Wai Comply can support drinking-water suppliers to better understand the DWSNZ through undertaking a comprehensive review of each organisations compliance strategies across any number of water treatment plants or distribution zones. Given our in-depth knowledge of the DWSNZ we can review existing compliance strategies and determine whether the most robust compliance option is being utilised and/or adopted correctly. It is important for each organisation that across all key DWSNZ and legislative requirements there is a consistency of approach ensuring that DWSNZ compliance approaches and WSP are in alignment.

Compliance Reporting - Drinking-water suppliers must provide records (data) to Drinking Water Assessors to demonstrate compliance with the Standards on a routine basis. Such records can contain any matter of compliance records, from quarterly bacteriological samples (E.coli) to reporting continuous data every minute of the day (24/7). At Wai Comply we are proficient in a range of compliance monitoring and reporting software packages (i.e. Drinking Water Online). On behalf of a drinking-water supplier we can review and maintain compliance reporting systems ensuring all records are submitted to the Drinking Water Assessor in a comprehensive manner. 


Quality Assurance and Auditing

As a drinking-water supplier having an effective and efficient quality administration system is an essential part of achieving compliance with the Standards.  At Wai Comply, we have 10+ years of combined experience working as auditors under IANZ ‘Inspection Body (17020)’. Given our vast experience we feel we can aid our clients in designing and implementing quality administration practices through the development of; guidelines, protocols, standard operating procedures, and manuals. With our unique 'approach to achieving compliance' we can contribute any number of quality administration requirements with confidence.


"Gisborne District Council have recently engaged Wai Comply to be involved on a long-term basis in the upkeep and internal auditing of our Water Supply Quality Management System. Wai Comply have a structured “can do” approach and their high degree of professionalism and competence makes them a trusted advisor to us.”


District Health Boards


Drinking Water Assessors

As trained and experienced Drinking Water Assessor’s (DWA) we are able to support District Health Boards with work delivered under the Ministry of Health’s public and environmental health contract. Such DWA work can include:

Scope 1 – Verification of compliance with the Drinking Water Standards; Annual Survey, writing verification of drinking-water supplier compliance reports, response to transgressions, catchment risk assessments, ground water security assessments, auditing quarterly compliance data (continuous or manual), assessing chlorine contact time, UV and membrane validation, and assessments of water carriers.

Scope 2 – Supporting DWAs to undertake assessments of drinking-water suppliers in their ability to undertake compliance samples (analysts), and calibrate drinking-water telemetry equipment.

Scope 3 – Assessing the adequacy of Water Safety Plans (WSPs).

Scope 4 – Undertaking inspections to determine whether Water Safety Plans (WSPs) are being ‘implemented’.

Service Planning and Delivery – Aid in the development or review of DWA quality administration programmes. This can include, developing DWA specific work-plans, developing quality management systems (to align with 17020 inspection body requirements), and undertake DWA capacity and efficiency reviews. 

Training and mentoring

This can apply across all the services applicable to District Health Board’s as described above. Wai Comply can also offer specific training opportunities (such as workshops/presentations) to aid DWA staff in any manner of assessment functions.

Quick facts:

  • Training can be run over a single day and can be scaled up or down to suit the needs of the audience.

  • Courses can be delivered at a fixed price (no limits to the number of attendees).

  • Courses can be delivered at any preferred location.

  • Assessment of continuous data includes building knowledge around how programmes such as “WaterOutlook” demonstrate compliance.

Most recently, Wai Comply ran a technical training workshop for Waikato District Health Board on ‘Membrane Filtration Technology’ and ‘how to interpret continuous compliance data’. The intent of the training was to provide DWAs with the skills and knowledge to effectively assess membrane treatment technologies against the current Drinking Water Standards for New Zealand. The training overall was extremely well received as feedback from participants included: 

All participants rated the training as “extremely worthwhile"

While participants also commented that; (the course was) “Good mix of high level technical with practical advice” andThe event was enjoyable because it made it easier to apply the complex criteria for membrane assessment.”

If your drinking-water assessment team is in need of such training, we would be more than happy to discuss options for delivering this training with you.

Keith Lewis of Hutt Valley DHB describes his interactions with Wai Comply as an advisor to them for Drinking Water Assessment services

emergency management

Chch earthquake 029.jpg

Emergency management - advisory services

At Wai Comply we can support organisations who are tasked with delivering emergency management services (including general businesses) with planning and preparedness for emergencies. Wai Comply is in a unique position whereby the specialist skillsets of one of the Directors (Matt Parkinson) has been used extensively during national emergencies (Christchurch, Kaikoura and Havelock North) to provide technical support with relation to sanitary services (lifeline utilities). In an emergency management context Matt has been an integral part of the Ministry of Health and Taranaki DHB’s ‘health emergency sector’ for the last 10 years.

Matt currently supports and operates within the current Civil Defence and Emergency Management Taranaki group through being appointed (and acting) as the “Group Recovery Manager”. This gives Matt a unique knowledge and application of activities occurring within the emergency management sector within New Zealand, and is well versed to understand the risk environment including the emergency management concept of the 4 “R’s”:

  • Readiness

  • Response

  • Reduction

  • Recovery

Emergency Management Concepts

Wai Comply considers that the United Nations “Sendai Framework for Disaster Reduction” is the guiding framework in which organisations should be strategically aligning their emergency management services with. The founding principles of the Sendai Framework are set on four priorities for action:

  • Priority 1. Understanding disaster risk

  • Priority 2. Strengthening disaster risk governance to manage disaster risk

  • Priority 3. Investing in disaster risk reduction for resilience

  • Priority 4. Enhancing disaster preparedness for effective response and to “Build Back Better” in recovery, rehabilitation and reconstruction

When it comes to emergency management planning within New Zealand, all response plans should align with the Co-ordinated Incident Management Systems (CIMS) framework. Wai Comply has a great understanding of each of the tasking requirements for each of the CIMS functions, and can support organisations with the development and revision of emergency response (or preparedness) plans against the CIMS structure below:


Advisory Services

At Wai Comply, we believe through utilising our emergency management experiences we can support organisations and business in delivering the following services:

  • Generalist emergency management support and advice (during and post-emergencies)

  • Planning development and audits: including emergency response protocols and business continuity planning

  • CIMS functions: delivery of key CIMS functions (Operations, Planning, Intelligence, and Welfare)

  • Subject matter support (public health) in support of response managers and controllers

  • Biosecurity Responses including; pests-extermination – setting and observing traps (mainly mosquito species which may result in the domestic spread of arboviral disease)