My view would be that they are covered by the WAO as they are used to survey the ground, the purpose is irrelevant really. Whilst there is a health and safety reason for doing this there is also a technical reason as the exact location of services may affect the design.
Bear in mind the value of these items in the greater scheme of things, if you disagree with the PM's assessment of a compensation event, your only recourse is adjudication - hardly worth pursuing for such a minor amount of difference.
Bear in mind the value of these items in the greater scheme of things, if you disagree with the PM's assessment of a compensation event, your only recourse is adjudication - hardly worth pursuing for such a minor amount of difference.