Series consists of incoming correspondence relating to the operation of the Berlin Water Commission for the years 1899, and 1901-1905. Correspondence is addressed to the water commissioners in general, or to individual commissioners (mainly chairman J.C. Breithaupt) or the superintendent (W. Mahlon Davis and his successor Henry Hymmen).

Series consists of records relating to the operation and activities of the Berlin Water Works Company and the sale of the company to the Corporation of the Town of Berlin. Includes correspondence, reports, contracts and other legal documents, architectural drawings, and other material.

Series consists of records relating to the operation of the Berlin Water Commission, later the Kitchener Water Commission, in the operation and maintenance of the water works and the construction of wells, reservoirs, pump houses, water towers, and other infrastructure. Includes construction project specifications, tenders, contracts and other legal documents, correspondence, reports, blueprints, etc.

Series consists of minutes of the Board of Water Commissioners for the town of Berlin, from the first meeting on January 4th, 1899, to May 30, 1914; and annual reports from 1899-1901.

Series consists of records accumulated and used by Marcel Pequegnat in his role as vice-chairman of the Grand River Conservation Commission. Records pertain to the administration and activities of the Commission. Includes correspondence (including carbon copies) and minutes of regular, annual, and executive committee meetings.

Series consists of two issues of the Kitchener-Waterloo Record, commemorating Canada's centennial and Kitchener's 125th anniversary.

Series consists of material relating to the Marcel Pequegnat Scholarship established by the Grand Valley Conservation Foundation. Includes a letter to Pequegnat and an issue of the Grand River Conservation Authority's newsletter, On the Grand.

Series consists of records relating to the history of The Arthur Pequegnat Clock Company and the Pequegnat family, probably collected and kept by Marcel Pequegnat. Includes a photocopy of part of the letters patent for the Berlin and Racycle Manufacturing Company, Racycle and Pequegnat clock advertising material, clock catalogues, press clippings, ephemera, and property agreements.

Series consists of photographs and other visual materials relating to the Kitchener Water Commission and the Grand River Conservation Commission. Photographs relating to the Kitchener Water Commission depict construction of water works facilities, pump houses, and pumping equipment mainly at the Shoemaker (now Greenbrook) and Strange Street pumping stations. Some photographs include the water commissioners. Photographs relating to the GRCC depict the the construction of the Shand and Conestogo dams.

Series also includes a mid-19th century portrait and cartes-de-visite of unidentified women and men, perhaps friends or relatives of the Pequegnat family.