In the content of this research, I focused on the studies of the resistances of concrete specimens with a resistance of 210 kg / cm2, prepared with three different types of water in their origin (drinking water, sea water that was extracted from huanchaquito and groundwater that was extracted from the Santa Enriqueta district of Chao), using as inputs for its preparation Pacasmayo cement type 1 Extraforte and aggregates from the El Milagro quarry. To realize this research, concrete cylinders were elaborated and tested at ages of 7, 14, 21, 28 days, in such a way that the results for each type of water used in the concrete mixing were analyzed and compared with the ranges established by the rule. Chemical studies were applied to the water to determine what type of contaminating substances or agents existed in its composition to have a data that contrasts with the effects that would have o...