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

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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

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Borewell data from GSE inhouse database

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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

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Estonian study area Mustjõe river vallysprings mires at Varstu and Matsi

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Planned groundwater monitoring

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• 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

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Thank you for your attention!

Contact:

Siim Tarros

siim.tarros@egt.ee

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