The study presents data concerning the water pollution status of the Siret hydrographical basin (i.e. surface and ground waters, lakes) in the Suceava County area (different controlling/monitoring sections) due to agricultural productive activities, especially regarding some quality indicators (nutrient concentration, meaning content of ammonia-NH4 +, nitrate-NO3 , nitrite-NO2 -) evaluated only for the 2008 year. The real water pollution state in Siret hydrographical basin (Suceava region) is estimated by the global pollution index (I* GP), and corresponds to values between 1.234 - 1.523 for ground waters (12 control sections, 52 drilling wells), 1.330 - 1.550 for surface water (14 control sections), and 1.330 - 1.435 for lakes (5 control sections). These values are indicating “an aquatic environment modified by agricultural activities within admissible limits”. The results of simple environmental risk estimation are also synthesized; the ammonia, nitrate and nitrite polluting risk being found minor. These data recommend the necessity of continuous monitoring of water quality in the the Siret River hydrographical basin, in all the existing control sections, for identification of any pollution episodes, non-reported by polluters to the local environmental regulators.