(1) Subject to the provisions of this Act, the main function of the Central Board shall be to promote cleanliness of streams and wells in different areas of the States.

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(2) In particular and without prejudice to the generality of the foregoing function, the Central Board may perform all or any of the following functions, namely:--

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(a) advise the Central Government on any matter concerning the prevention and control of water pollution;

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(b) co-ordinate the activities of the State Boards and resolve disputes among them;

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(c) provide technical assistance and guidance to the State Boards, carry out and sponsor investigations and research relating to problems of water pollution and prevention, control or abatement of water pollution;

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(d) plan and organise the training of persons engaged or to be engaged in programmes for the prevention, control or abatement of water pollution on such terms and conditions as the Central Board may specify;

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(e) organise through mass media a comprehensive programme regarding the prevention and control of water pollution;

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¹ [(ee) perform such of the functions of any State Board as may be specified in an order made under sub- section (2) of section 18;]

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(f) collect, compile and publish technical and statistical data relating to water pollution and the measures devised for its effective prevention and control and prepare manuals, codes or guides relating to treatment and disposal of sewage and trade effluents and disseminate information connected therewith;

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(g) lay down, modify or annul, in consultation with the State Government concerned, the standards for a stream or well:

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Provided that different standards may be laid down for the same stream or well or for different streams or wells, having regard to the quality of water, flow characteristics of the stream or well and the nature of the use of the water in such stream or well or streams or wells;

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(h) plan and cause to be executed a nation-wide programme for the prevention, control or abatement of water pollution;

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(i) perform such other functions as may be prescribed.

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(3) The Board may establish or recognise a laboratory or laboratories to enable the Board to perform its functions under this section efficiently including the analysis of samples of water from any stream or well or of samples of any sewage or trade effluents.

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(1) Subject to the provisions of this Act, the functions of a State Board shall be--

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(a) to plan a comprehensive programme for the prevention, control or abatement of pollution of streams and wells in the State and to secure the execution thereof;

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(b) to advise the State Government on any matter concerning the prevention, control or abatement of water pollution;

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(c) to collect and disseminate information relating to water pollution and the prevention, control or abatement thereof;

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(d) to encourage, conduct and participate investigations and research relating to problems of water pollution and prevention, control or abatement of water pollution;

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(e) to collaborate with the Central Board in organising the training of persons engaged or to be engaged in programmes relating, to prevention, control or abatement of water pollution and to organise mass education programmes relating thereto;

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(f) to inspect sewage or trade effluents, works and plants for the treatment of sewage and trade effluents and to review plans, specifications or other data relating to plants set up for the treatment of water, works for the purification thereof and the system for the disposal of sewage or trade effluents or in connection with the grant of any consent as required by this Act;

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(g) to lay down, modify or annul effluent standards for the sewage and trade effluents and for the quality of receiving waters (not being water in an inter-State stream) resulting from the discharge of effluents and to classify waters of the State;

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(h) to evolve economical and reliable methods of treatment of sewage and trade effluents, having regard to the peculiar conditions of soils, climate and water resources of different regions and more especially the prevailing flow characteristics of water in streams and wells which render it impossible to attain even the minimum degree of dilution;

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(i) to evolve methods of utilisation of sewage and suitable trade effluents in agriculture;

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(j) to evolve efficient methods of disposal of sewage and trade effluents on land, as are necessary on account of the predominant conditions of scant stream flows that do not provide for major part of the year the minimum degree of dilution;

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(k) to lay down standards of treatment of sewage and trade effluents to be discharged into any particular stream taking into account the minimum fair weather dilution available in that stream and the tolerance limits of pollution permissible in the water of the stream, after the discharge of such effluents;

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(l) to make, vary or revoke any order--

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(i) for the prevention, control or abatement of discharges of waste into streams or wells;

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(ii) requiring any person concerned to construct new systems for the disposal of sewage and trade effluents or to modify, alter or extend any such existing system or to adopt such remedial measures as are necessary to prevent, control or abate water pollution;

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(m) to lay down effluent standards to be complied with by persons while causing discharge of sewage or sullage or both and to lay down, modify or annul effluent standards for the sewage and trade effluents;

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(n) to advise the State Government with respect to the location of any industry the carrying on of which is likely to pollute a stream or well;

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(o) to perform such other functions as may be prescribed or as may, from time to time, be entrusted to it by the Central Board or the State Government.

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(2) The Board may establish or recognise a laboratory or laboratories to enable the Board to perform its functions under this section efficiently, including the analysis of samples of water from any stream or well or of samples of any sewage or trade effluents.

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(1) The State Government shall, with effect from such date ¹ *** as it may, by notification in the Official Gazette, appoint, constitute a ² [State Pollution Control Board], under such name as may be specified in the notification, to exercise the powers conferred on and perform the functions assigned to that Board under this Act.

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(2) A State Board shall consist of the following members, namely:--

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(a) a ³*** chairman, being a person having special knowledge or practical experience in respect of ⁴[matters relating to environmental protection] or a person having knowledge and experience in administering institutions dealing with the matters aforesaid, to be nominated by the State Government ⁵[in such manner as may be prescribed by the central Government]:br

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⁶[Provided that the chairman may be either whole-time or part-time as the State Government may may think fit;]

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(b) ⁷[such number of officials, not exceeding five,] to be nominated by the State Government to represent that Government;

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(c) ⁸[such number of persons, not exceeding five,] to be nominated by the State Government from amongst the members of the local authorities functioning within the State;

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(d) ⁹[such number of non-officials, not exceeding three,] to be nominated by the State Government to represent the interests of agriculture, fishery or industry or trade or any other interest which, in the opinion of the State Government, ought to be represented;

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(e) two persons to represent the companies or corporations owned, controlled or managed by the State Government, to be nominated by that Government;

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¹⁰ [(f) a full-time member-secretary, possessing qualifications, knowledge and experience of scientific, engineering or management aspects of pollution control, to be appointed by the State Government.]

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(3) Every State Board shall be a body corporate with the name specified by the State Government in the notification under sub-section (1), having perpetual succession and a common seal with power, subject to the provisions of this Act, to acquire, hold and dispose of property and to contract, and may, by the said name, sue or be sued.

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(4) Notwithstanding anything contained in this section, no State Board shall be constituted for a Union territory and in relation to a Union territory, the Central Board shall exercise the powers and perform the functions of a State Board for that Union territory:

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Provided that in relation to any Union territory the Central Board may delegate all or any of its powers and functions under this sub-section to such person or body of persons as the Central Government may specify

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