Video of raging flow into the Valdina Farms (Seco) Sinkhole of the Edwards Aquifer. The Edwards Aquifer Authority has developed the sinkhole to receive high stream flows via a diversion ditch from Seco Creek. It is located in western Medina County, Texas, USA, within the Balcones Fault Zone and the recharge zone of the Edwards Aquifer. A sinkhole is a circular depression in a karst area―Seco Sinkhole measures 10 m diameter at its entrance with a 44 m deep vertical shaft. (1 minute)
A discussion of the material in this video is provided in Section 4.1.2 ‘Recharge’ of the Groundwater Project book ‘The Edwards Aquifer’, the PDF can be downloaded or the online version can be read at that link.
Citation: Edwards Aquifer Authority (2017). Karst: Raging flow into Valdina Farms (Seco) Sinkhole of the Edwards Aquifer. Video of The Groundwater Project, Guelph, Ontario, Canada.