Agro-ecological, economic and social evaluation of the sustainability of farm operations run on light soils and involving different farming systems: fruit, vegetable, mixed and cattle farming were the subject of this study. The farms were located in the poviat of Przysucha, province of Mazowieckie, Poland. The farms under study were characterized by low level of sustainability in terms of agro-ecology whereas in terms of economic and social sustainability their rating was high. Vegetable farms showed the highest level of economic sustainability. Under combined assessment which involved all three criteria vegetable and cattle farms showed the highest sustainability. Fruit and mixed farms were rated as average in this respect.