Series consists of three bound ledgers of meeting minutes of the Water Commissioners for the period 1878-1884 and 1907-1918. Included in this series are reports and recommendations of the commmissioners with respect to the development of the water supply system in Guelph, payment of accounts, and authorizations for water and sewage works. These records document the commission management of the water supply system in Guelph.

The volumes are arranged chronologically by year.