Monitoring and observation well definition
Monitoring and observation well means any artificial excavation constructed by any method to extract water or vapor samples, or to install instruments or equipment to detect, measure, record or otherwise monitor or observe the level, chemical constituency or similar characteristics of the groundwater. "Monitoring and observation well" does not mean wells constructed for the purpose of monitoring the presence of groundwater which has adversely affected, or threatens to adversely affect, crop root zones (perched water).
Monitoring and observation well means a well constructed for the purpose of observing or monitoring groundwater conditions.