The law relating to prevention and control of water pollution
The Water Act, 1974: Pollution Control Boards, consent, directions and penalties
In one minute
The Water (Prevention and Control of Pollution) Act, 1974 keeps rivers, streams, wells and sewers clean. It works through Pollution Control Boards. An industry needs the Board's consent before it discharges sewage or trade effluent.
The Board can act in three ways: take emergency steps, ask a court to restrain a polluter, or give written directions of its own, including closure. Questions on this Act are common in both short and long form.
Exam focus
- Frequency: Rarely asked
- Usually asked as: Long answer (10 to 15 marks)
Legal provision
The main sections, read from the Act as stored on this site, are these.
- Section 1(2): the Act applied at first to listed States and the Union territories. Any other State could adopt it by a resolution under Article 252(1) of the Constitution.
- Section 2(e): "pollution" means contamination of water, or a change in its physical, chemical or biological properties, or a discharge of sewage, trade effluent or any other substance into water. The discharge must be likely to create a nuisance. Or it must make the water harmful to public health, to domestic or industrial use, or to animals, plants and aquatic life.
- Sections 3 and 4: the Central Pollution Control Board and a State Pollution Control Board for each State.
- Section 24: no person may knowingly cause or permit poisonous, noxious or polluting matter to enter a stream, well, sewer or land.
- Section 25: the previous consent of the State Board is needed to set up an industry likely to discharge sewage or trade effluent. It is also needed for a new outlet and for a new discharge.
- Section 32: emergency measures by the State Board.
- Section 33: an application by the Board to a court to restrain apprehended pollution.
- Section 33A: written directions by the Board, including closure and stopping of electricity or water.
Meaning and definition
Water pollution law is regulatory law. The State sets standards and permits in advance, and a Board checks compliance. This differs from a nuisance suit, where the victim goes to court after harm has happened.
The Act covers streams, wells and sewers, and also land onto which polluting matter is discharged. An effluent is a liquid waste that flows out of a factory or a sewage works. "Trade effluent" is the effluent of a trade or industry.
Detailed explanation
Step 1: the Boards and their functions
The Central Government constitutes the Central Pollution Control Board under section 3. The State Government constitutes a State Pollution Control Board under section 4. Both are bodies with members drawn from officials, local authorities, industry and other interests.
The main function of the Central Board is to promote cleanliness of streams and wells (section 16). It advises the Central Government, coordinates the State Boards and lays down standards for streams and wells. A State Board plans a programme for its State, inspects works and plants, and lays down effluent standards (section 17).
Step 2: the ban on polluting matter (section 24)
Section 24 stops a person from knowingly causing or permitting poisonous, noxious or polluting matter to enter a stream, well, sewer or land. The matter is judged against the standards the State Board has laid down. The section also bars matter that would block the flow of a stream and so worsen pollution.
Some acts do not count as an offence by themselves. Examples are building a bridge or weir that a person has a right to build, or putting natural sand or gravel into the stream.
Example. A tannery at Vaniyambadi knowingly lets a drain of chromium-laden liquid run into a stream. Section 24 bars this, whatever the stream's present condition.
Step 3: the consent system (sections 25 to 27)
Under section 25 a person needs the previous consent of the State Board in three cases. The first is setting up, or starting steps to set up, an industry or treatment system likely to discharge sewage or trade effluent. The second is bringing a new or altered outlet into use. The third is beginning a new discharge.
The application goes in the prescribed form, with the prescribed fee. The Board may inquire, and then grant consent with conditions or refuse it. Section 26 brings discharges that already existed before the Act under the same system. Under section 27 the Board may review a condition, vary it or revoke it, and review a refusal. This is the consent to establish and operate system.
Example. A pharmaceutical unit near Hyderabad plans a new treatment plant that will release treated water into a canal. It applies to the State Board before it begins the work. The Board grants consent subject to limits on the quality of the water released.
Step 4: the Board's powers when pollution is feared or has happened
- Emergency measures (section 32): polluting matter may be present in a stream, well or land, or may have entered it by accident. If immediate action is needed, the Board may act for reasons recorded in writing. It may remove the matter, remedy the pollution and order the person to stop the discharge.
- Application to a court (section 33): the Board may apprehend that water is likely to be polluted. It may then ask a court to restrain the person. The court must be a Metropolitan Magistrate or Judicial Magistrate of the first class, or higher. The court may order the person to stop and authorise the Board to remove the matter. The Board's expenses are recoverable as arrears of land revenue.
- Directions (section 33A): despite any other law, the Board may issue written directions to any person, officer or authority. The directions may require closure, prohibition or regulation of an industry or process, or stopping of electricity, water or any other service.
Example. A sugar mill releases untreated effluent into a river and ignores the conditions of its consent. The State Board directs it in writing to close the process and asks the electricity board to cut supply. No court order is needed first.
Exceptions and special rules
Penalties
The Act text stored on this site provides the following. The Water (Prevention and Control of Pollution) Amendment Act, 2024 (in force 15 February 2024) replaced prosecution with a money penalty of Rs 10,000 to Rs 15 lakh for several offences, including section 41. Confirm the current text of sections 42 to 44 before quoting imprisonment terms in an answer.
- Section 41(2): failure to obey a section 32(1)(c) order, a court direction under section 33(2) or a section 33A direction. Imprisonment of not less than one year and six months, up to six years, and a fine.
- Sections 43 and 44: breach of section 24, or of section 25 or 26. The same range of imprisonment, and a fine.
- Section 42: smaller offences, such as obstructing the Board or giving false information. Imprisonment up to three months or a fine up to ten thousand rupees, or both.
Why the Act rests on Article 252
Water as a subject belongs to the State List. Parliament therefore passed this Act at the request of State Legislatures under Article 252. Article 252(1) lets Parliament legislate for the requesting States, and for any State that adopts the Act later.
Don't confuse: Board powers
| Point | Section 32 | Section 33 | Section 33A |
|---|---|---|---|
| What it is | Emergency steps by the Board itself | Application to a court | Written directions by the Board |
| When used | Matter is present or has entered, and immediate action is needed | Pollution is apprehended | While exercising its powers and functions under the Act |
| Court needed | No | Yes, a Magistrate | No |
Inside the concept. A chemical drum bursts beside a stream and its contents are seeping in. The Board removes the drum and the soil at once under section 32.
Just outside it. A dairy owner is only planning to dump waste into a well next month. The Board asks a Magistrate under section 33 to restrain the dumping. It could also give a direction under section 33A.
Common mistakes
- Saying the Water Act created a new Board for air. The same Boards are used for air under the Air Act.
- Writing that section 33A needs a court order. It does not.
- Mixing the sections: consent is section 25, existing discharges are section 26, and the ban on polluting matter is section 24.
- Saying the Act rests on Article 253. It rests on Article 252.
Apply it
Problem
A textile dyeing unit starts work at Tiruppur without applying for the State Board's consent. It discharges coloured effluent into a canal. Local farmers complain. What can the Board do?
Issue
Has the unit broken the Act, and what are the Board's remedies?
Rule
Section 25 needs previous consent. Section 33A allows written directions, including closure and stopping of electricity.
Application
The unit began a discharge without consent, so it broke section 25. The Board can issue a direction under section 33A and, if it likes, apply to a court under section 33. Section 44 makes the breach an offence.
Conclusion
The Board can direct the unit to close and stop its supplies without a court order. The unit also faces prosecution under section 44.
Leading case laws
- M.C. Mehta v. Union of India (Ganga Pollution Case)
Facts. About 274.50 million litres of untreated sewage a day went from Kanpur into the Ganga. The Kanpur Nagar Mahapalika had sent no treatment proposal to the State Board.
Principle. The Court allowed M.C. Mehta, who was not a riparian owner, to bring a public interest petition. It held the Mahapalika mainly responsible and made the statutory duties of the Boards and municipalities enforceable.
Why it matters. It shows the Court enforcing Water Act duties and pollution control by local bodies.
- A.P. Pollution Control Board v. Prof. M.V. Nayudu (Retd.)
Facts. The Pollution Control Board refused consent for a factory near two lakes. The appellate authority and the High Court ruled for the company.
Principle. The Court explained the precautionary principle and the reversed burden of proof. It referred the technical questions to the National Environmental Appellate Authority.
Why it matters. It deals with consent under sections 25 and 28 of the Water Act.
- Vellore Citizens Welfare Forum v. Union of India
Facts. Tanneries in Tamil Nadu discharged untreated effluent that polluted the Palar river area.
Principle. The precautionary and polluter pays principles are part of Indian environmental law.
Why it matters. It supports Board action and compensation against polluting industry.
How to write this answer in the exam
5-mark answer
- Object and basis: Article 252.
- Central and State Boards.
- Consent under section 25.
- Board powers: sections 32, 33 and 33A.
10-mark answer
- Meaning of pollution (section 2(e)).
- Boards, composition and functions.
- Section 24 ban and its exceptions.
- Consent system, conditions and review.
- Emergency, court and direction powers, with the comparison table.
- Penalties, then Ganga and Nayudu.
Key points to remember
- Water Act, 1974 rests on Article 252.
- Sections 3 and 4: Central and State Pollution Control Boards.
- Section 24: ban on polluting matter. Section 25: previous consent. Section 26: existing discharges.
- Section 32 emergency steps, section 33 court application, section 33A written directions.
- Section 33A allows closure and stopping of electricity or water without a court order.
- Section 2(e) defines pollution by harm or likely harm, not by a fixed chemical list.
Quick self-test
1. Which Article supports the Water Act?
Article 252.
2. Which section lets the Board close an industry without a court?
Section 33A.
3. What does section 25 require?
The previous consent of the State Board for a new industry, outlet or discharge.