GIS AND HYDROGEOLOGICAL MAPPING OF THE WALLOON REGION (BELGIUM)

Transcription

1 Luxembourg University Foundation - Laboratory of Hydrous Resources - Faculty of Applied Sciences of Mons Fundamental and Applied Geology - Hydrogeology Cell - Ministry of the Walloon Region Direction Générale des Ressources Naturelles et de l Environnement Avenue Prince de Liège, 15, B-5100 Namur, Belgium University of Namur - Department of Geology - University of Liège - Geomac Department - GIS AND HYDROGEOLOGICAL MAPPING OF THE WALLOON REGION (BELGIUM) Bouezmarni Mohamed (FUL), Habils Frédéric (FPMs), Nogarède Pierre (FUNDP), Ruthy Ingrid (ULg)

2 1999 : first Belgian hydrogeological mapping program, involving four universities

3 Potentials fields of application : qualitative and quantitative management for groundwater resources evaluation of risks of pollution land-use policy establishment of new water catching points.. Documents strongly required by environmental research and management actors

4 Georelational hydrogeological database Primary Data Topography Geological map Map of soils Lakes and ponds Hydrological basins Hydrological network (rivers) Irrigation drains Surface water (point information) Climatic stations Groundwater (point information) Quarries and mines Water supply galleries and drains Protection zones Hydrogeologic cross-sections Sewer network system Karst geomorphology atlas Land-use map Organized scheme for capturing, storing, editing and displaying data

5 GEOLOGY GEOLOGY 1 Lithology Lithology (description) (description) Top Top (m), (m), Base Base (m) (m) Member Member Formation, Formation, Level, Level, Series, Series, System, System, Era Era Sample Sample (Y/N) (Y/N) Interpretation Interpretation Bibliogr.reference Bibliogr.reference GROUNDWATER (Point) 1 Name Name Groundwater point point type type Piezometric data data (Y/N) (Y/N) Identification codes codes Map Map sheet, sheet, Basin Basin no. no. X, X, Y (Lambert Co-ordinates) Owner, Reference name name Existing still still (Y/N) (Y/N) Accessibility (Y/N) (Y/N) Address, Localisation Exploitation (Y/N) (Y/N) Activity type type Situation map map (OLE (OLE object) of of construction Depth Depth (m) (m) Top Top surface casing Bottom surface casing Surface casing diameter Protection zone zone (I, (I, IIa, IIa, IIb...) IIb...) REFERENCE Z-Sol, Z-Sol, Z-Sol Z-Sol Z-CP, Z-CP, Z-CP Z-CP Z-Casing, Z-Casing Z-SB, Z-SB, Z-SB Z-SB 1 HYDRAULIC EQUIPMENT PIEZOMETRY BOREHOLE TREATMENT Pump Pump Flow Flow rate rate meter meter (Y/N) (Y/N) Measurement date date Piezometric level level (m) (m) Measurement (m) (m) Reference (Z-Sol, (Z-Sol, Z-CP) Z-CP) Cause Cause of of measurement failure failure Operator EQUIPMENT Top/Bottom screen casing (m) (m) Casing diameter (cm) (cm) Slotwidth (mm) (mm) Open Open area area percentage (%) (%) Size/Top/Bottom gravel gravel pack pack Top/Bottom clay clay plug plug Top/Bottom grouting Top/Bottom clay clay plug plug SU SU Nature casing (selection) BOREHOLE DIAMETER Top, Top, Base Base (m) (m) Diameter Company, Consultant Clean/Develop date date Acidification date date AQUIFER Aquifer Code Code Screened (Y/N) (Y/N) Unconfined/Confined /Other /Other ID ID Aquifer TESTS (Well logging,...)...) BOREHOLE Company, Consultant Drilling method Test Test type, type,,, Consultant Bibliogr.reference QUANTITATIVE DATA (pump tests) BOREHOLE SAMPLES,, Consultant Bibliographic reference Hydraulic conductivity Porosity Depth Depth (m) (m) Lithology (description) Member Formation, Level, Level, Series, System, Era Era Interpretation Bibliogr. reference TRACER TESTS YEARLY YEARLY Year Year Volume (m Volume (m 3 ) 3 ) DAILY DAILY Volume (m Volume (m 3 ) 3 ),, Consultant Bibliogr. reference INSTANT INSTANT FLOW RATE FLOW RATE Flow rate (m³/s) Flow rate (m³/s) OVERFLOWING FLOW RATE (gallery, drain) MONTHLY MONTHLY Volume (m Volume (m 3 ) 3 ) OCCASIONAL OCCASIONAL Pumping Pumping start/end date start/end date Volume (m Volume (m 3 ) 3 ) Value Value (m³/s) (m³/s) GROUNDWATER POINT STRUCTURE ARCVIEW + ACCESS 1 SAMPLES SAMPLES ID Sample ID Sample Code Code Ref. obs. network Ref. obs. network Sampling date Sampling date Sampling year Sampling year Method Method Flow rate Flow rate Water treatment Water treatment Aquifer code Aquifer code PARAMETERS PARAMETERS ID Sample ID Sample Parameter (ID-Param) Parameter (ID-Param) Measured value Measured value Analyzed data Analyzed data Laboratory (ID-Labo) Laboratory (ID-Labo) Analyze method Analyze method Detection limit Detection limit OVERFLOWING OVERFLOWING FLOW RATE DATA FLOW RATE DATA Measurement start date Measurement start date Measurement end date Measurement end date Frequency Frequency Reference Reference AUTHORISATION AUTHORISATION Authority code Authority code Daily/Yearly//Monthly Daily/Yearly//Monthly /Hourly Authorized Vol. /Hourly Authorized Vol.

6 GROUNDWATER (Point) Name Groundwater point type Piezometric data (Y/N) Identification codes Map sheet, Basin no. X, Y (Lambert Co-ordinates) Owner, Reference name Existing still (Y/N) Accessibility (Y/N) Address, Localisation Exploitation (Y/N) Activity type Situation map (OLE object) of construction Depth (m) Top surface casing Bottom surface casing Surface casing diameter Protection zone (I, IIa, IIb...) Geographical reference : Lambert co-ordinates (Belgium Lambert Conformal Conic Projection)

7 GEOLOGY GEOLOGY 1 Lithology Lithology (description) (description) Top Top (m), (m), Base Base (m) (m) Member Member Formation, Formation, Level, Level, Series, Series, System, System, Era Era Sample Sample (Y/N) (Y/N) Interpretation Interpretation Bibliogr.reference Bibliogr.reference GROUNDWATER (Point) 1 Name Name Groundwater point point type type Piezometric data data (Y/N) (Y/N) Identification codes codes Map Map sheet, sheet, Basin Basin no. no. X, X, Y (Lambert Co-ordinates) Owner, Reference name name Existing still still (Y/N) (Y/N) Accessibility (Y/N) (Y/N) Address, Localisation Exploitation (Y/N) (Y/N) Activity type type Situation map map (OLE (OLE object) of of construction Depth Depth (m) (m) Top Top surface casing Bottom surface casing Surface casing diameter Protection zone zone (I, (I, IIa, IIa, IIb...) IIb...) REFERENCE Z-Sol, Z-Sol, Z-Sol Z-Sol Z-CP, Z-CP, Z-CP Z-CP Z-Casing, Z-Casing Z-SB, Z-SB, Z-SB Z-SB 1 HYDRAULIC EQUIPMENT PIEZOMETRY BOREHOLE TREATMENT Pump Pump Flow Flow rate rate meter meter (Y/N) (Y/N) Measurement date date Piezometric level level (m) (m) Measurement (m) (m) Reference (Z-Sol, (Z-Sol, Z-CP) Z-CP) Cause Cause of of measurement failure failure Operator EQUIPMENT Top/Bottom screen casing (m) (m) Casing diameter (cm) (cm) Slotwidth (mm) (mm) Open Open area area percentage (%) (%) Size/Top/Bottom gravel gravel pack pack Top/Bottom clay clay plug plug Top/Bottom grouting Top/Bottom clay clay plug plug SU SU Nature casing (selection) BOREHOLE DIAMETER Top, Top, Base Base (m) (m) Diameter Company, Consultant Clean/Develop date date Acidification date date AQUIFER Aquifer Code Code Screened (Y/N) (Y/N) Unconfined/Confined /Other /Other ID ID Aquifer TESTS (Well logging,...)...) BOREHOLE Company, Consultant Drilling method Test Test type, type,,, Consultant Bibliogr.reference QUANTITATIVE DATA (pump tests) BOREHOLE SAMPLES,, Consultant Bibliographic reference Hydraulic conductivity Porosity Depth Depth (m) (m) Lithology (description) Member Formation, Level, Level, Series, System, Era Era Interpretation Bibliogr. reference TRACER TESTS YEARLY YEARLY Year Year Volume (m Volume (m 3 ) 3 ) DAILY DAILY Volume (m Volume (m 3 ) 3 ),, Consultant Bibliogr. reference INSTANT INSTANT FLOW RATE FLOW RATE Flow rate (m³/s) Flow rate (m³/s) OVERFLOWING FLOW RATE (gallery, drain) MONTHLY MONTHLY Volume (m Volume (m 3 ) 3 ) OCCASIONAL OCCASIONAL Pumping Pumping start/end date start/end date Volume (m Volume (m 3 ) 3 ) Value Value (m³/s) (m³/s) GROUNDWATER POINT STRUCTURE ARCVIEW + ACCESS 1 SAMPLES SAMPLES ID Sample ID Sample Code Code Ref. obs. network Ref. obs. network Sampling date Sampling date Sampling year Sampling year Method Method Flow rate Flow rate Water treatment Water treatment Aquifer code Aquifer code PARAMETERS PARAMETERS ID Sample ID Sample Parameter (ID-Param) Parameter (ID-Param) Measured value Measured value Analyzed data Analyzed data Laboratory (ID-Labo) Laboratory (ID-Labo) Analyze method Analyze method Detection limit Detection limit OVERFLOWING OVERFLOWING FLOW RATE DATA FLOW RATE DATA Measurement start date Measurement start date Measurement end date Measurement end date Frequency Frequency Reference Reference AUTHORISATION AUTHORISATION Authority code Authority code Daily/Yearly//Monthly Daily/Yearly//Monthly /Hourly Authorized Vol. /Hourly Authorized Vol.

8 Georelational hydrogeological database ODBC and SQL link GIS hydrogeological maps!!! Automatic Update!!! Link between the georeferenced database and a Geographical Information System (Arcview 3.2a, ESRI ) - Open DataBase Connectivity (ODBC) - Standard Query Language (existing SQL GIS function)

9 Georelational hydrogeological database ODBC and SQL link BDHydro.avx GIS hydrogeological maps Extension BDHydro (Avenue, ESRI )

10 descr expr valeur normes C onductivité µs/cm à 25 C Température (in<situ) Celsius 23,1 25 ph unités ph 7,48 6.5<pH<9.2 D ureté totale français 20, A lcalinité totale (T AC ) français 17,65 C alcium m g/l C a Magnésium mg/l Mg 3,6 50 Sodium m g/l Na 2, Potassium mg/l K 0,42 12 Fer (total) dissous µg/l Fe <0, Manganèse µg/l Mn <0, Sulfates m g/l SO Bicarbonates mg/l HCO3 215 Chlore libre résiduel mg/l 3, Ortho<Phosphates mg/l PO4 <0,01 Silice m g/l SiO 2 6 N itrates m g/l NO 3 3,3 50 Nitrites mg/l NO2 <0, Ammonium mg/l NH4 <0, Résidu secg q mg/l après séchage à 180 C (biodégradable) mg/l C 0,23 Alum inium µg/l Al <2 200 A ntim oine µg/l Sb <2 10 Argent µg/l Ag <0,3 10 Arsenic µg/l As <2 50 Baryum µg/l Ba 4 B eryllium µg/l Be <0,1 Bore µg/l B 27 Bromures mg/l Br 26 Cadmium µg/l Cd <0,05 5 C obalt µg/l Co <2 C uivre µg/l Cu <1 100 Cyanures (totaux) µg/l CN <2 10 Chlorates µg/l ClO3 <10 Chrom e (total) µg/l Cr <1 50 Etain µg/l Sn <1 Fluorures mg/l F < Litium µg/l Li 3 Mercure µg/l Hg <0,03 1 Molybdène µg/l Mo <1 N ickel µg/l Ni <2 50 Plom b µg/l Pb <1 50 Selenium µg/l Se <2 10 Strontium µg/l Sr <100 Titane µg/l Ti <1 Vanadium µg/l V <2 Zinc µg/l Zn <1 200

11 GIS Hydrogeological Map Project

12 Main Hydrogeological Map Topography (source:ign), Hydrogeology (based on geology), Hydrographic network, Localization of wells, piezometers, sources, galleries, Isopiestic lines, Probable direction of underground flows, Protection zones, Particular phenomena,

13 Hydrogeological Cross-Section Geological structure and the saturation level depth

14 Lithostratigraphic Table Correspondence between geological formations and hydrogeological units on a lithological basis

15 Thematic Map Exploited volumes, Aquifers occured by wells, piezometers,...

16 Thematic Map Confinement of the aquifers, Hydrochemical analysis s, Pumping, tracing and well-logging tests, Geophysical investigation zones

17 Thematic Map Thickness of main aquifers

18 Explanatory Leaflet General considerations on regional geography, geology and hydrogeology Focus on specific hydrogeological aspects : local behaviour of the water table, hydrochemistry, hydrodynamic parameters and particular phenomena

19 Hydrogeological coverage of Wallonia completed in 2010 Final aim : maps and database on the Web, under restricted access

20