Assisting a risk assessment

Accurate and detailed records, maintenances diaries, schematics and plans of a private supply is important information for the risk assessment process. Ideally this information is provided to a local authority before a visit so that the time spent completing on-site risk assessments is optimised.

Local authorities may wish to consider gathering information regarding a private supply from the relevant person(s) ahead of any planned risk assessment. Whilst this does not replace the need for a site visit and full risk assessment, it can reduce the amount of follow up work required.

An Information Pack can be sent to relevant person(s) inviting them to provide details or evidence about their supply. Local authorities should take the information provided, input it into their risk assessment and then verify the information onsite. As a minimum, the information in Table 1 should be able to be provided by the relevant person(s) ahead of the local authority risk assessment. Example tables for sections, where relevant, have been included.

An Information Pack can be sent to relevant person(s) inviting them to provide details or evidence about their supply. Local authorities should take the information provided, input it into their risk assessment and then verify the information onsite. As a minimum, the information in Table 1 should be able to be provided by the relevant person(s) ahead of the local authority risk assessment. Example tables for sections, where relevant, have been included.

Private Water Supplies Information Pack

Some examples of the ideal level of detail required for the risk assessment are outlined below:

Example Catchment Plan

Example of a river catchment plan identifying major land uses in the vicinity.

Example Supply Plans

Example: Borehole schematic outlining pipework, treatment processes and relevant information regarding the supply system.
Spring system schematic
Example schematic of a spring system that includes relevant information regarding the individual components of the supply and steps to take in the event of no water.

Example schematics of Treatment Systems

Chlorination Unit schematic
Example of a full building schematic showing components of the chlorination unit
UV and pH Unit schematic
Example of a full building schematic showing components of the an UV unit and a pH unit
Raw Water to tap Flow Diagram
Example of how to outline of the treatment process from raw water to property taps.
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