Site Event/Activity record ECH7044 - Geophysical Survey Report: HyNet CO2 Pipeline

A geophysical survey was undertaken in 2022 to assess the sub-surface archaeological potential of a c.173.5ha area of land along the proposed route of the HyNet CO2 Pipeline. The pipeline runs between a point south-east of Flint, Wales, north of Chester, to another east of Ellesmere Port, Cheshire. A fluxgate gradiometer survey was successfully completed across c. 147.7ha; the remaining area was not surveyed due to access constraints or unsuitable ground conditions. Within the surveyed area in Cheshire, there were three potential areas containing anomalies of possible interest, as follows:- Area 158 (Figure 172) - a curved, linear anomaly which appears to coincide with a feature mapped by the NMP, Phase 2 project and interpreted as part of a World War II depot associated with RAF Poulton (CHER 4090/0/0 and CHER 4090/1/0). Area 41 (Figure 211) - a line of possible pits. Areas 9-11 (Figure 226 and 229) - linear anomalies lying close to Elton moat, a scheduled monument. (1)