Nutrients load estimation to a lake system through the local groundwater flow: Los Lagos de Montebello, México

- The background value for nitrates was determinate in a non-impacted tropical karstic aquifer.
- The nutrients that travel in the groundwater and discharge into the lake system was quantified.
- The background value of nitrate found is lower than in others reported areas.
- The processes of attenuation of nutrient transport in groundwater are analyzed.
- A groundwater monitoring system based on piezometers was established.