Planned groundwater monitoringand available hydrogeological data in
the Estonian study area
Siim Tarros, Maile Polikarpus, Joonas Pärn, Valle Raidla, Andres Marandi
Salacgriva, 06.07.2018
• Hydrogeological data about upper and middleDevonian in Gauja-Koiva river basin
• GSE inhouse database
• National groundwater monitoring network in Koiva river basin
• Estonian study area for GroundEco project
• Equipment for groundwater monitoring
2
Hydrogeological data
• Geological bedrock map (1:400 000)
• Geological and hydrogeological base map (1:50 000)
• Old USSR hydrogeological and quaternary maps (1:200 000)
• Groundwater vulnerability maps
3
Borewell data from GSE inhouse database
4
5
Borewell data from GSE inhouse database
National groundwater monitoring network• Chemical analysis
• once every year:NH4, NO2, NO3, Cl, SO4, HCO3, K, Na, Ca, Mg, Fe, pH, PHT, CO2 Karedus Kuivjääk,
Field measurements :DO (O2), EC, Temp
• Groundwater levels
6
Estonian study area Mustjõe river vallysprings mires at Varstu and Matsi
7
Planned groundwater monitoring
8
• Driven wells installed near spring mires
• Waterlevel, temperatur and conductivity loggers
• Portable weather monitoringstation
• Spring water discharge and flowvelocity (if possible)
• Groundwater levels from nearbydeep and dug wells
Planned groundwater monitoring
• Field analysis from monitoring wells and surrounding Devonianwells and quaternary dug wells
9
11
12