Po definiciji Vodne direktive je Vodno Telo Podzemne Vode (VTPodV), ali poenostavljeno "telo podzemne vode", razločna prostornina podzemne vode v vodonosniku ali več vodonosnikih. Določanje teles podzemne vode je bilo izvedeno po Pravilniku o metodologiji za določanje teles podzemnih voda sprejet v Uradnem listu RS pod št. 65/2003 in 63/2005. Karta vodnih teles podzemnih vod predstavlja 21 značilnih vodnih teles podzemnih voda na državnem nivoju v Sloveniji, ki pripada dvema vodnima območjema (Donava in Jadranske reke). Karta vključuje tudi 168 vodonosnih sistemov, ki gradijo vodno telo podzemne vode na državnem nivoju. Na obravnavanem območju so bile meje vodnih teles prilagojene na merilo 1:25.000.

Map represents the calculated (surface) heat-flow density (HFD) in mW/m2 with topographic correction. It is made with data from 119 boreholes from the measured temperatures in the available boreholes and measured thermal conductivity on cored rock samples from the same boreholes. The pattern of the HFD isolines is affected by numerous parameters, particularly the thermal conductivity of rocks, rock permeability and fracturing, fluid content of the rocks, and all are reflected in the measured temperature gradient in the boreholes.

The underground geothermal conditions can be presented, irrespective of the aquifers' position, with the appropriate geothermal maps. This map represents the expected isotherms at a depth of 2000 m and is derived from Geothermal map - Expected temperatures at a depth of 2000 m, which is made with data from 240 boreholes. It is made on the basis of measured temperatures in accessible boreholes throughout the country. However, since the temperature field depends on the geological structure in the depths and tectonic characteristics, the course of the isotherms is a result of many influences, such as thermal conductivity of rocks, permeability and fracturing of rocks, all of which are reflected in the measured temperatures in boreholes. In this depth also a radiogenic heat production in the rocks has smaller influence. The distribution of boreholes, which were useful for the measurement of temperature, is very uneven and different as regard the depths. Following the expected temperatures at a depth of 2000 m a stronger positive anomaly is in the northeastern part of Slovenia, from the line Maribor-Rogatec to the east, while in the eastern part of the Krka basin the anomaly is not so much visible any more. In the northeastern part of the country the anomaly is the result of the thinning of the Earth's crust and greater conductive heat flow from the Earth's mantle.

Data of Geological map were reclassified into classes of IAH classification on the base of hydrogeological characteristics. IAH classification is based on description of the hydrogeological units. Firstly, based on extensiveness and productivity and secondly on type of porosity. The purpose is to provide assistance to the strategy of groundwater exploitation as to protection and water resources management.

Naravni hidrogeološki objekti, kjer podzemna voda po naravni poti pride na površje.

Gladina podzemne vode (hidroizohipse) predstavljajo srednje vodno stanje gladine podzemne vode v plitvih opazovalnih objektih (plitva gladina podzemne vode). Meritve so bile izvedene v zelo visokem (24.10.2014 - v okviru projekta Izdelava metodologije in pilotnega vnosa hidrogeološke karte v M 1:25.000) in zelo nizkem (22.11.2011 - v okviru Projekta INCOME) vodnem stanju, srednja vrednost meritev. Pomembno: meritve so bile izvedene v času črpanja v Vodarni Brest.

Relief karbonatne podlage pod aluvijalnim prodnim zasipom Iškega vršaja z obrobjem je narejena na popravljenem modelu po Menceju (1990), ki je bila narejena v okviru Projekta INCOME (Janža e tal., 2012). Za potrebe hidrogeološke karta Iškega vršaja je bila podlaga popravljena s dodatnimi seizmičnimi podatki in podatki iz vrtin projekta INCOME. Podlaga je pripravljena v grid obliki 5x5.

Vodonosni sistem je ozemlje z geološko zgradbo, v kateri nastopata vsaj dva različna vodonosnika, z ali brez medsebojne hidravlične povezave. Na obravnavanem območju so bile meje vodonosnih sistemov prilagojene na merilo karte 1:25.000. Namenjena so zanesljivemu ugotavljanju stanja celotne pomembne prostornine podzemnih voda v državi in doseganja okoljskih ciljev, ki jih predpisuje Vodna direktiva.

Layer shows discontinuities in the geological structure, and characterizes them according to their type and observation method.

Layer Boreholes shows the localities where structural boreholes were drilled.