MEDA DATABASE ON TRANSBOUNBDARY AQUIFERS Version 1.0 14/12/07
(ESCWA-UNESCO-UNECA-UNECE)
QUESTIONNAIRE
ON TRANSBOUNDARY AQUIFERS IN THE MEDA REGION
Please complete using Word document format.
Please complete a separate
questionnaire for each aquifer
Please return by e-mail to: al-mooji@un.org and R.Stephan@unesco.org with copies to: iganouli@civil.auth.gr
and a.aureli@unesco.org, by 20th August
2007.
1- NAME OF THE TRANSBOUNDARY AQUIFERS, LOCATION & COUNTRIES
Please give the name(s) or other identification
property of the shared aquifer, its approximate location (province, department) and say which
countries share it.
Name of the shared aquifer |
Location (Province) |
Country shared aquifer |
Aïn Béni Mathar Aquifer |
Jerada |
|
Confined Aquifer, located at the border between
2- AQUIFER PROPERTIES
2-1 Please look
at the four simplified pictures below and indicate which of them most closely
characterises your transboundary aquifer. If none, please provide
a conceptual sketch of your transboundary aquifer in the blank box below
Please tick : Example 1 2 3 4 5
2-2 GENERAL CHARACTERISTICS
Aquifer
hydrogeological type: porous karstic fissured rock other
Predominant lithology: Dolomite
Limestone and Dolomite
Stratigraphic age: Lias and Aaleno-Bajocian
Area extent
(km2): 10 000 Population resident in this area and main occupation: -
Thickness: mean (m). : 50 maximum
(m) 400
Shared international boundary length : not defined
Dominant
groundwater flow direction: SW-NE from
Link with surface water systems: strong medium weak
No link with surface water
2.3 Map
Please provide a clear map of the transboundary aquifer, including
aquifer boundaries and geographical coordinates. The map should preferably be
supplied as a GIS-file
2.4 Hydrogeological Characteristics and Groundwater Use
Rainfall:
average annual and seasonal distribution:
Recharge / discharge area: Aquifer is recharged mainly by infiltration
from precipitation in
Level changes (m/yr) - natural, induced by pumping, or other
reason:
§
Natural Level changes (m/yr) :
0.05
§
Level changes induced by
pumping and evaporation (m/yr) : 0.25
à 0.5
Total available non-renewable groundwater
reserves (Mm3/yr):
Total available annually renewable groundwater
resources (Mm3/yr): 40
Total
groundwater abstractions (Mm3/yr) (estimated where not measured):
50 (
Flow in/out
across national boundary (Mm3/yr): not
defined
Groundwater
flow direction and gradient across boundary: W-E
From Morocco to
Water uses
(total, by sector, principal uses, current - estimated and future - projected)
Total water use Mm3/yr : 50.
§ Irrigation water use Mm3/yr : 35 ;
§
Drinking
water use Mm3/yr :
15.
Deficits and other resource concerns (e.g. quality, extremes,
environmental degradation, interactions with surface water bodies / other
aquifers)
The chemical quality of the water of aquifer is good
in the NW of the aquifer, medium in
3- MONITORING DATA
Please note
that stakeholders should comply with the WMO Resolution 25 on
international exchange of hydrological and related data. (http://www.wmo.ch/index-en.html).
If appropriate insert Excel tables into the Word document in order to
provide information and available data on quantity,
quality and accessibility, including:
· Observation networks
Describe the type of monitoring systems
(surveillance, operational, investigative) and present briefly its historical
perspective (starting year, changes of equipment or institutions and any other
general information)
· Maps, with
available scales, GIS and remote sensing imagery
Provide maps showing the
monitoring stations in GIS format and any other relevant remote sensing
information
· Type of data
and monitoring equipment
Give the list
of parameters and substances you monitor for quantity, physico-chemical and
biological conditions and the monitoring equipment and methodology you use.
· Data archives
and their adequacy
Describe the
chronology of the data and give your opinion about their reliability
· Institutions
in charge
Names and addresses of national and
international institutions responsible for monitoring
· Research
centres
Same as above
for research centres involved in monitoring
3.1 Quantity
·
No. of monitoring stations : 8
·
Frequency of measurements : 4
times per year
·
Water levels :
See Aïn Béni Mathar Piezometer
· Mean value and typical range : See Aïn Béni Mathar Piezometer
·
Additional information :
-
3.2 Quality
·
No. of monitoring sites :
6
·
Frequency of measurements : 2 times per year
·
Nitrogen compounds :
-
·
Salinity and
major ions : See Table
below
·
Heavy metals :
-
·
Pesticides :
-
·
Industrial organic compounds : -
Date |
Conductivity |
Cl- |
NO3- |
NH4+ |
Organic Matter |
16/06/1998 |
1272 |
265,5 |
24,97 |
0,006 |
0,70 |
14/07/2000 |
1540 |
215,0 |
17,60 |
0,014 |
2,00 |
07/02/2002 |
1545 |
187,2 |
11,00 |
0,002 |
0,51 |
01/07/2002 |
1186 |
221,6 |
11,75 |
0,066 |
1,77 |
4. IMPORTANCE OF TRANSBOUNDARY GROUNDWATERS
4-1 Uses and Functions
Does the
groundwater in this transboundary aquifer have direct uses and/or other
functions?
No Why
not? Irrelevant groundwater resource
Problems
with groundwater
(if yes,
indicate these in section 5)
or:
Yes Uses Shared Aquifer Groundwater as %
of total water use in the area
Total Shared Groundwater as % of total
water use in the country:
Total Groundwater as % of total
water use in the country:
Other functions Support of ecosystems
Support
of agriculture
(Directly from shallow water table)
Preventing
land subsidence
Maintaining
baseflow and springs
Seasonal heat storage
Any other function
(please specify)
Drinking
water supply
4-2 Groundwater abstraction and use
in the aquifer
Indicate in the table the percentage
of total groundwater abstraction accounted for by each use
Type of use |
Percentage |
If you do not know the exact percentage, than mark one of the following
options |
|||
< 25 % |
25 – 50 % |
50 – 75 % |
> 75 % |
||
Drinking water |
30 |
|
|
|
|
Irrigation |
70 |
|
|
|
|
Industry |
|
|
|
|
|
Mining |
|
|
|
|
|
Thermal spa |
|
|
|
|
|
Livestock |
|
|
|
|
|
Other (please specify) |
|||||
|
|
|
|
|
|
|
|
|
|
|
|
Please indicate the year to which
these figures apply: 2004
5. WHICH PROBLEMS ARE OBSERVED IN
TRANSBOUNDARY GROUNDWATERS?
5.1 Problems
related to groundwater quantity
a) Specify if possible the average trend of
groundwater level decline (m/year) : 0.35
b) Indicate
in the table the type and scale of problem associated with groundwater
abstraction from the aquifer
Problem |
Increasing scale
of problem |
|||
1. Local and moderate |
2. Local but severe |
3. Widespread but moderate |
4. Widespread and severe |
|
Increased pumping lifts or costs |
+ |
|
|
|
Reduction of borehole yields |
+ |
|
|
|
Reduced baseflow and springflow |
+ |
|
|
|
Degradation of ecosystems |
|
|
|
|
Sea water intrusion |
|
|
|
|
Salt water upconing |
+ |
|
|
|
Polluted water drawn into aquifer |
|
|
|
|
Land subsidence |
|
|
|
|
Other (please specify) |
||||
|
|
|
|
|
|
|
|
|
|
5.2
Problems related to
groundwater quality
Indicate in the table the type,
nature and scale of groundwater quality problems in the aquifer
Problem |
Nature of problem |
Typical range of concentrations |
Scale, using classes 1-4 from table above |
|
Natural origins |
From human activities |
|||
Salinisation |
+ |
|
|
1 |
Nitrogen species |
|
|
|
|
Pesticides |
|
|
|
|
Heavy metals |
|
|
|
|
Pathogens |
|
|
|
|
Industrial organic compounds |
|
|
|
|
Hydrocarbons |
|
|
|
|
Other (please specify) |
||||
Organic
matters |
|
|
|
|
Arsenic |
|
|
|
|
5.3 Evidence for transboundary
effects
b) Do you observe any decline of groundwater levels (or
piezometric levels) caused or probably caused by activities in neighbouring
countries?
Yes No
c) Do you observe any groundwater
pollution caused or probably caused by activities in neighbouring countries?
Yes No
6.
TRANSBOUNDARY MANAGEMENT MEASURES
Indicate in the table which measures are presently
being implemented or need to be applied
Management Measures |
Already used and effective |
Used, but Need to be improved |
Need to be applied |
Currently
planned |
Transboundary institutions (commissions, agreements, treaties, etc.) |
|
|
+ |
|
Groundwater abstraction management by regulation (licensing, taxation) |
|
+ |
|
|
Groundwater abstraction management by incentives or disincentives
(subsidies, credits, energy prices, energy supply, etc.) |
|
|
+ |
|
Increasing efficiency of groundwater use |
|
+ |
|
|
Monitoring of groundwater quantity |
|
+ |
|
|
Monitoring of groundwater quality |
|
|
+ |
|
Public awareness campaigns |
|
|
+ |
|
Protection zones for public supplies |
|
|
+ |
|
Vulnerability mapping for land use planning |
|
|
+ |
|
Good agricultural practices |
|
|
+ |
|
Groundwater integrated into river basin management |
|
|
|
|
Wastewater reuse or artificial recharge |
|
|
|
|
Treatment of urban wastewater |
|
|
|
|
Treatment of industrial effluents |
|
|
|
|
Other (please specify) |
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
7. POLICY AND LEGISLATIVE PROPERTIES
8. NAME AND CONTACT DETAILS OF PERSON(S)
COMPLETING THIS FORM:
Name : FILALI MOUTEI
Jaouad
Institution : Secretary of State to the Ministry of Energy, Mining,
Water and Environment, in charge of Water and Environment
Address… : Administration de l’Hydraulique 20, Rue Hassan Ben
Chekroun, Rabat Agdal, Maroc
Tel. : (+212) 37 68 58 24 Fax. (+212) 37 77 60 81 E-mail : fmjaouad@water.gov.ma