Public Works (R2) Department
(Ms) No. 51
Based on the development of Ground Water Resources the Panchayat Union
Blocks in Tamil Nadu were categorized into Dark and Grey areas in the G.O.
first read above. The Blocks with more than 85% to 100% Ground Water
Development were categorized as "Dark block" and the blocks with
ground water development between 65% to 85% were categorized as "Grey
Blocks". This categorization was done in accordance with the then
prevailing Ground Water Estimation Committee
- 1984 (GEC - 1984)
Norms. Thereafter the committee constituted by the Ministry of Water
Resources, Government of India has recommended to adopt the GEC - 1997
Norms for estimation of the Ground Water resources in all the States.
2. The Government, in the G.O. second read above constituted a
State Level Working Group for the assessment of the ground water potential
in Tamil Nadu. The above group have finalized the categorization of the
Panchayat Union Blocks as per the GEC 1997 Methodology. The Ground Water
resources have been computed as on January 1998 and the same has been
projected to January 2003 on prorata basis as decided during the Working
Group meeting. The above assessment report has been vetted and accepted by
the Central Ground Water Board, Ministry of Water Resources, Govt. of
India, New Delhi.
3. In his letter seventh read above the Chief Engineer (State
Ground and Surface Water Resources Data Centre) has stated that based on
the GEC 1997 Methodology, the Ground Water Assessment has been worked out
and based on the development of Ground Water and the long term water level
trend, the panchayat Union Blocks in Tamil Nadu have been categorized as
Over-Exploited, Critical, Semi-Critical and Safe. The Chief Engineer has
proposed that in order to observe certain Ground Water discipline for
implementation of Minor Irrigation schemes so as to conserve and manage
the ground water potential, the categorization of Panchayat Union blocks
in all the districts (except Chennai district) of Tamil Nadu have to be
notified and circulated to all departments and agencies dealing with the
ground water development.
4. The Member-Secretary, State Planning Commission has also
requested the Government to inform the Collectors of the categorization of
the Blocks as per GEC 1997 Methodology for guidance in implementation of
the programmes for Rain Water Harvesting and artificial recharge of Ground
5. The Government have decided to approve the above proposals of
the Chief Engineer (State Ground and Surface Water Resources Data Centre).
Accordingly the Government approve the categorization of the Panchayat
Union blocks in Tamil Nadu as Over- Exploited, Critical, Semi critical and
Safe blocks for ground water development as on January 2003 as detailed in
the Annexure to this order.
6. The Government also direct that no schemes should be formulated
in over exploited and critical blocks, and in semi critical and safe
blocks all the schemes should be formulated in consultation with State
Ground and Surface Water Resources Data Centre of Water Resources
Organisation in Public Works Department. The term 'scheme excludes
energisation of agricultural pump sets by the Tamil Nadu Electricity
7. The Government further direct that appropriate rain water
harvesting and artificial recharge schemes be carried out in all the
categories of blocks and while carrying out the above schemes priority
shall be given to the over exploited and the critical blocks so as to
avoid further deterioration.
(BY ORDER OF THE
Chief Engineer (State Ground
and Surface Water Resources Data Centre), Tharamani, Chennai - 113.
the other Chief Engineers in Public Works
Director of Rural Development, Chennai -104.
General manager, National Bank for Agriculture and Rural Development,
The Registrar of Co-operative Societies, Chennai
Chief Engineer (Agricultural Engineering), Chennai -35
Director of Agriculture, Chennai - 5
Director of Horticulture, Chennai - 5
Commissioner/Managing Director, Sugar Corporation, Chennai - 35.
Managing Director, Tamil Nadu Water Supply and Drainage Board,
Engineering Director, Tamil Nadu Water Supply and Drainage Board,
Managing Director, Chennai Metro Water Supply and Sewerage Board, Chennai
Chairman, Tamil Nadu Electricity Board, Chennai - 2
Agriculture Department, Chennai - 9.
Revenue Department, Chennai - 9
E&F Department, Chennai - 9
Municipal Administration and Water Supply Department, Chennai - 9
Rural Development Department, Chennai - 9
Co-operation Department, Chennai - 9
Industries Department, Chennai - 9
/forwarded by order/
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