Reaction ranges from strongly acid to slightly alkaline. These are the Bangor , Battydoe , Becket , Berkshire , Chatham , Chesuncook , DeKapen , Dixfield , Elliottsville , Groveton , Houghtonville , Howland , Lombard , Marlow , Michigamme , Mundal , Onota , Penquis , Plaisted , Rawsonville , Revel , Tunbridge , and Welcome series in the same family. Bangor soils lack a lithologic discontinuity and have silt loam or loam textures in the substratum within the series control section. Becket soils have fine sandy loam or sandy loam textures in the subsoil. Battydoe, Berkshire, Groveton, and Houghtonville soils lack a Cd horizon in dense till within the series control section.
Chatham soils are slightly acid to mildly alkaline in the solum.
Chesuncook and Marlow soils lack a lithologic discontinuity within the series control section. DeKapen soils have more than 25 percent weathered pebbles in the solum. Dixfield and Howland soils have redoximorphic features in the lower part of the subsoil. Elliottsville, Michigamme, Onota, Penquis, Rawsonville, Revel, and Tunbridge soils have bedrock at a depth of 20 to 40 inches. Plaisted soils have silt loam or loam substrata and dominantly have rock fragments of quartzite and slate.