Data
Collection Questionnaire
MEDA DATABASE ON TRANSBOUNBDARY AQUIFERS Version 2.1.1 3/09/07 (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 31st August 2007.
1. NAME OF THE TRANSBOUNDARY AQUIFER, 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.
The Northeastern Aquifer, shared between Palestine and Israel
2. AQUIFER CHARACTERISTICS
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
West Bank Israel
North West Bank Cross Section
General Characteristics
Aquifer hydrogeological type porous karstic fissured rock
other Predominant lithology Limestone
Stratigraphic age Cretaceos-Teritiary and Quaternary
Areal extent (km2)1234 (1027 km2 inside the West Bank) and 207 km2... inside Israel..
Population resident in this area and main occupation……~ 560,000… Thickness: mean (m)....1500......... maximum (m) 2000
Shared international boundary length (km)…50 Km………………………… Dominant groundwater flow direction: from.. ....Palestine. to ..........Israel..................... (countries)
Link with surface water systems:
Strong medium weak
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 ………average annual rainfall is 500 mm, min 350 mm, Max 1000m………………………
Recharge / discharge area…
The aquifer outcrops areas had to be divided into three different rainfall zones.
The aforementioned total recharge zone in the Northeatern basin (1062 km2) thus is divided into a zone with low rainfall (52 km2), a large zone with medium rainfall amounts (907 km2) and a small wet zone In the mountains (103 km2).
The rain amonts that precipitate over the aquifer outcrops have to be separated to rainfall that occurs in the west Bank gives the following results:
Out of a total recharge sum of 164 MCM/a, 134 MCM/a take place within the West Bank and only 29 MCM/a of recharge are generated within Israel. This equals a ration of 82% recharge takig place in the Palestinian lands and only 18% of it coming from Israel itself
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1 |
2 |
3 |
4 |
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Basin Area km2 |
Outcrop area by rain zone and total C-T+Eocene+Alluvial (Km2) |
Rain on Aquifer Outcrop (MCM/a) |
Recharge by rain zone (MCM/a) |
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Isr |
Pal |
Sum |
Israel |
Pal |
Sum |
Israel |
Pal |
Sum |
Isr |
Pal |
Sum |
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Wet |
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0 |
102.54 |
102.54 |
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0 |
24 |
24 |
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Medium |
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201.05 |
706.37 |
907.42 |
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29 |
109 |
138 |
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Dry |
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0 |
52.35 |
52.35 |
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0 |
2 |
2 |
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Sum |
207 |
1027 |
1234 |
201.05 |
861.26 |
1062.31 |
98 |
437 |
535 |
29 |
135 |
164 |
% |
17% |
83% |
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19% |
81% |
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18% |
82% |
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18 |
82 |
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Level changes (m/yr) – natural, induced by pumping, or other reasons Natural: 3m/yr by pumping 10m/yr
Total available non- renewable groundwater reserves (Mm3/yr): …N/A…………………
Total available annually renewable groundwater resources (Mm3/yr): ……164 Mcm/yr……………
Total groundwater abstractions (Mm3/yr) (estimated where not measured) ……80…………………
Flow in/out across national boundary (Mm3/yr)…… ……130…………………….
Groundwater flow direction and gradient across boundary…North and Northeast
Water uses (total, by sector, principal uses, current - estimated and future -projected)…
Total:
Uses |
Palestine |
Israel |
Agriculture |
23 |
10 |
Domestic |
10 |
134 |
Principal use:agricultural and demostic
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Palestine |
Israel |
Current use (Mcm/yr) |
33 |
144 |
Projected use (Mcm/yr) |
100 |
77 |
Deficits and other resource concerns (e.g. quality, extremes, environmental degradation, interactions withsurface water bodies / other aquifers)
Deficits and Concerns
1. Over pumping and mismanagement of aquifer by Israelis
2. Sewage pollution of dumping untreated sewage in wadies over the outcrops of the aquifer.
3. Salinity problems in some locations
4. Industrial waste by Israeli industrial zones on the outcrops of the aquifer.
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
· Maps, with available scales, GIS and remote sensing imagery see report:” Steady State and Transient Flow Model of the Northeastern Aquifer basin
· Type of data and monitoring equipment
· Data archives and their adequacy
· Institutions in charge
· Research centres
3.1 Quantity
· No. of monitoring stations
· Frequency of measurements ……………………………….see report
· Water levels
· Additional information
3.2 Quality
· No. of monitoring sites
· Frequency of measurements see report
· Nitrogen compounds
· Salinity and major ions
· Heavy metals
· Pesticides
· Industrial organic compounds
4. IMPORTANCE OF TRANSBOUNDARY GROUNDWATERS Uses and Functions
Does the groundwater in this transboundary aquifer have direct uses and/or other functions?
No |
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Why not? |
Irrelevant groundwater resource |
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or: |
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Problems with groundwater (if yes, indicate these in section 5) |
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Yes |
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Uses |
Shared Aquifer Groundwater as 73% of total water use in the area Total Shared Groundwater as % of total water use Total Groundwater as % of total water use |
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… |
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Other functions |
Support of ecosystems Support of agriculture (directly from shallow water table) Preventing land subsidence Maintaining baseflow and springs Seasonal heatstorage Any other function (please specify) |
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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 |
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< 25 % |
25 – 50 % |
50 – 75 % |
> 75 % |
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Drinking water |
30 |
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* |
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Irrigation |
70 |
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* |
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Industry |
0 |
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Mining |
0 |
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Thermal spa |
0 |
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Livestock |
negligible |
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Other (please specify) |
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Please
indicate the year to which these figures apply...Average
80-98............
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.. 3 m/year |
b) |
Indicate in the table the type and scale of problem associated with groundwater abstraction |
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from the aquifer |
Problem |
Increasing scale of problem |
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1. Local and moderate |
2. Local but severe |
3. Widespread but moderate |
4. Widespread and severe |
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Increased pumping lifts or costs |
* |
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Reduction of borehole yields |
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* |
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Reduced baseflow and springflow |
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* |
Degradation of ecosystems |
* |
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* |
Sea water intrusion |
* |
* |
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Salt water upconing/downconing |
* |
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Polluted water drawn into aquifer |
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* |
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Land subsidence |
* |
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Other (please specify) |
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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 Mg/l |
Scale, using classes 1-4 from table above |
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Natural origins |
From human activities |
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Salinisation |
* |
* |
500-700 |
1-2 |
Nitrogen species |
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Pesticides |
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Heavy metals |
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Pathogens |
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Industrial organic compounds |
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Hydrocarbons |
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Other (please specify) |
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5.3 Evidence for transboundary effects
a) Do you observe any decline of groundwater levels (or piezometric levels) caused or probably
caused by activities in neighbouring countries? Yes
No
b) 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.) |
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* |
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Groundwater abstraction management by regulation (licensing, taxation) |
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* |
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Groundwater abstraction management by incentives or disincentives (subsidies, credits, energy prices, energy supply, etc.) |
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* |
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Increasing efficiency of groundwater use |
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* |
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Monitoring of groundwater quantity |
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* |
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Monitoring of groundwater quality |
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* |
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Public awareness campaigns |
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* |
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Protection zones for public supplies |
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* |
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Vulnerability mapping for land use planning |
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* |
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Good agricultural practices |
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* |
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Groundwater integrated into river basin management |
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* |
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Wastewater reuse or artificial recharge |
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* |
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Treatment of urban wastewater |
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* |
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Treatment of industrial effluents |
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* |
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Exchange of data between countries |
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* |
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Other (please specify) |
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* |
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* |
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* |
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* |
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7. POLICY AND LEGISLATIVE PROPERTIES
Do you know of any cooperation between riparian states on transbounday aquifers? Is there any agreement regarding a transboundary aquifer in your region? NO
8. NAME AND CONTACT DETAILS OF PERSON(S) COMPLETING THIS FORM:
Name……Amjad Aliewi & Jumana Abu Sada………………………………………
Institution……House of Water and Environment……(HWE)………………………………………… Address…41 Khaled Ibn El Walid Street
Al Sharafeh – Al Bireh
Ramallah-Palestine
P.O Box 1796
Tel: +972 0r (+970) 2 240 1776, Fax: +972 0r (+970) 2 240 68 48
E-mail: Amjad.aliewi@hwe.org.ps, jumana.abusada@hwe.org.ps