The Wasserverband Peine, hereinafter referred to as AG, intends to put out to tender the cleaning and visual inspection of the sewer networks in the villages of Adenstedt.

The performance of the optical inspection must be fulfilled in the period from 06.02.2023 to 21.07.2023. The cleaning and visual inspection of the sewer system in the village of Adenstedt amount to:

- approx. 4,015 m SW main channel DN 200 (approx. 125 pipes); Depth between 1.5 and 2.5 m

and pipe lengths from approx. 2.6 to 72.9 m - approx. 125 SW main sewer shafts with depths from 1.4 to 2.7 m

- public connection lines on approx. 325 plots with approx. 220 SW house control shafts,

Connecting pipes shall be inspected from the main sewer or a house control shaft. If there is no HR shaft, the pipeline must be examined up to 2 m behind the property boundary.

- approx. 4,305 m RW main channel DN 300-1000 (approx. 110 pipes); Depth between 1.0 and

2.2 m and pipe lengths from approx. 2.7 to 104.2 m - approx. 115 RW main sewer shafts with depths from 0.8 to 2.4 m

- public connection lines on approx. 325 plots and approx. 380 lines of

Road drains - approx. 7,030 m MW main channel DN 150-900 (approx. 185 pipes); Depth between 1.0 and

3.0 m and pipe lengths from approx. 2.2 to 117.8 m - approx. 190 MW main sewer shafts with depths from 0.9 to 3.3 m

- public connection lines on approx. 325 plots with approx. 220 MW of house control shafts,

Connecting pipes shall be inspected from the main sewer or a house control shaft. If there is no HR shaft, the pipeline must be examined up to 2 m behind the property boundary.