Ground water flow modeling.Input data preparation.

D.Frank-Kamenetsky (Committee)I.Bogotyrev (Mineral)

G.Savenkova (Mineral)M.Naumovets (Mineral)

G.Bogdanova (expert)

Location of the pilot modeling areas

Shuvalovo

Main tasks:• Modeling of the oil pollution migration.• Modeling of oil pollution of the inter moraine

aquifer.• Assessment of the pollution migration to

surface water objects.

“Shuvalovo” polygon

“Polustrovo” polygon

• Protection of the ground water deposits against

pollutants migration from upper aquifers. • Modeling of flooding caused by ground water.• Estimation of chemical changes caused by negative load

to ground water.• Development of the recommendations to reduce

negative impact to ground water in Polustrove area.

Required input data

• information on all boreholes and wells used for different purposes: water-intake boreholes; private boreholes, monitoring, stratigraphic wells, etc;

• static and piezometric levels;• groundwater table;• aquifer thickness;• climatic parameters: intensity of atmospheric precipitation ,

temperatures, etc;• hydrological data on rivers: level, runway, morphometric

characteristics, flow-rate, etc.;• geometry of the system: data on the roof and subface of lithological

strata;• tested filtration parameters (filtration coefficient, transmissibility,

porosity, etc.);• chemical composition of groundwater.

Input data preparation schedule

• General (regional) information – July 2007• Detailed data – November 2007

Definition of borders for the pilot areas.

“Shuvalovo” polygon

“Polustrovo” polygon

“Polustrovo” polygon

General geological and hydrogeological information

Regional mapGeneral information:•Relief of crystalline basement•Lithology and relief of pre-Quaternary deposits•Lithology of Quaternary deposits•Daylight relief•Hydrology

Hydrogeological information:•Uppermost (the first from surface) layer of Quaternary deposits with hydrogeological classification•Next to the uppermost (the second from surface) layer with hydrogeological classification

Regional sections

N Cross-section description File name

1 Longitudial geological cross-section of pre-Quaternary geology N 2-2

Geol_Nev_02.pdf

2 Longitudial hydrogeological cross–section N 4-4 HGeol_MM_04.pdf

3 Transverse hydrogeological cross–section N 8-8 HGeol_Nev_08.pdf

4 Transverse hydrogeological cross–section N 11-11 HGeol_Nev_11.pdf

Preliminary information on “Shuvalovo” polygon

Layer No Layer name Layer content Attribut

e NoAttribute name Attribute content

1 Bore_holes.shp Bore holes and wells available on the pilot area at the moment

1.1 ID Unique code

1.2 No Number of bore hole

2 Catchments.shp Catchment areas of some local water bodies

2.1 ID Unique code

2.2 Name Catchment name

2.3 Order Catchment order

3 Cross_sections.shp

Lines of geological cross-sections

3.1 ID Unique code

3.2 Name Name of cross-section

4 Water_levels.shp Water levels on surface water bodies

4.1 Level Meters above sea level

N Cross-section description File name

1 Geological cross-section 2 LIGO1_02.pdf

2 Geological cross-section 5 LIGO1_05.pdf

10 borehole columns.

Detailed geological data

Geological map for the “Shuvalovo” polygon scale1:10000

Hydrogeological sections and wells

4

1

Hydrogeological sections

1-1

4-4

Wells database

The database contains information on 331 wells. 1. Information source2. General information (number, head-well level, depth, water table level,

etc) 3. Geology (lithological descriptions)4. Well construction (if exists)5. 20 chemical analyzes (heavy metals, oil products, etc)6. Filtration parameters for different rock types.

Drill hole database

Ground water chemical composition

Drill well №5019

The same data set for “Polystrovo” polygon is under preparation