State the emergency powers which may be exercised by State Board in case of pollution of stream or well under the Water (Prevention and Control of Pollution) Act, 1974.

Section 32 of the Water (Prevention and Control of Pollution) Act, 1974 empowers the State Board to take certain emergency measures. Accordingly where it appears to the State Board that any poisonous, noxious or polluting matter is present in any stream or well or on land by reason of the discharge of such matter in such stream or well or on land, or has entered into that stream or well due to any accident or unforeseen act or event, and the Board is of the opinion that it is necessary or expedient to take immediate action, then it may for reasons to be recorded in writing, carry out such operations as it may consider necessary for all or any of the following purposes, namely: removing that matter from stream or well and disposing it of in such manner as the Board considers appropriate; remedying or mitigating any pollution caused by its presence in the stream or well; issuing orders immediately restraining or prohibiting the person concerned from discharging any poisonous, noxious or polluting matter into the stream or well or on land or from making insanitary use of the stream or well.