Archaeological monitoring was undertaken to excavate and record any archaeological deposits which were exposed by the groundworks. During 4th-16th September 2019, a CAT archaeologist oversaw the reduction of an area measuring 4931.3m� by approximately 0.44-0.50m to form a new wetland scrape. The initial stripping of the eastern section of the area, which was located nearest to a known red hill, was directly monitored, and when the groundworks were completed, on 16th September, a CAT archaeologist returned to inspect the site. Archaeological monitoring was carried out at Old Hall Marshes, Old Hall Lane, Tollesbury, Essex during the creation of new wetland scrapes and other amendments to the reserve. In spite of being located in an archaeologically-sensitive area, no significant archaeological deposits or material were encountered.