Article 47 Production of plans and furnishing of informationF1

to produce to the Ministry all such plans of the drain or pipe as the owner or occupier, as the case may be, possesses or is able without unreasonable expense to obtain, and allow copies of the plans so produced by him to be made by, or under the direction of, the Ministry, and

to furnish in writing to the Ministry all such information as the owner or occupier, as the case may be, can reasonably be expected to supply with respect to the drain and any sewage discharged therefrom or with respect to the pipe.