Reid 1961) states that a pond denotes a small body of standing water with rooted plants growing across it, or capable of supporting such plants all across its bottom. This definition delimits the characteristics of the three artifical ponds studied from October, 1968, through May, 1969. In comparison with lake studies, relatively few general limnological studies of ponds have been completed in the continental United States. Several pond studies have described fauna (Bamforth, 1958; Eddy, 1931; Kenk, 1949; Krecker, 1919; Peterson, 1926; Scott, 1910; Ward, 1940), surveyed physico-chemical characteristics (Forney, 1957), or recorded ecological and limnological features (Dineen, 1953; Schultz, 1952). In the plains area general limnological studies are fewer (Ratzlaff, 1952; Scott, 1951, Tiemeier and Elder, 1957; Tiemier and Moorman, 1957; Wallen, 1949, 1951, 1955). In Douglas County, Kansas, most studies have concerned crustaceans (Leonard and Ponder, 1949; Fleming, 1956; Armitage, 1961; Armitage and Smith, 1969), rotifers (Velez, 1951), or limited benthic samples (Hastings, 1962). The present study was completed on three permanent farm ponds of varying size and nature, located within the Yankee Tank drainage basin. The four square mile basin is located approximately two miles west of Lawrence, and is currently receiving attention from several university, state, and federal agencies under the guidance of the Environmental Geology Section, The University of Kansas, investigating the effects of urbanization on the physical and biological environment. Selected physico-chemical parameters, zooplankton, benthos and other general limnological features of the three ponds were studied, and were chosen on the basis of general limnological differences among 9 ponds sampled by the State Biological Survey from June through August, 1968. Data gathered during that time are compared with data collected in the present study. Pond 2, with no trees in close proximity, and constructed in 1958, is the most exposed of the three ponds to winds. Waters from rocky,