Industrial Effluent and Water Pollution: Legal Remedies

When a factory lets coloured, foaming or foul-smelling wastewater into a drain, a canal, a village pond, open land or a borewell, the law gives you more than one door to knock on. The State Pollution Control Board can inspect, take samples, and order the unit closed or its power cut under section 33A of the Water Act. The SDM can deal with it as a public nuisance. The National Green Tribunal can order restoration and compensation when the authorities stall. On the other side of the table, a factory facing such a complaint has a right to be heard and an appeal route. This page sets out both.

We wrote this for two kinds of reader. The first lives or farms near an industrial area and is watching a drain turn black, crops wilt or a handpump start to smell. The second runs a unit that has received an inspection report, a show-cause notice or a closure direction about its effluent. The law is the same for both; the steps are different.

For the narrower questions, our guides go deeper: how to complain about untreated industrial effluent, what happens when a factory's ETP is not working and which units must follow zero liquid discharge.

The essentials

A factory is releasing chemical water near us. What can we actually do?

You can make the State Pollution Control Board inspect the unit, take samples at the outlet and in the receiving drain or pond, and pass orders. That is the first and usually the fastest route. In Delhi the authority is the DPCC, in Uttar Pradesh the UPPCB, in Haryana the HSPCB, and every other state has its own board. The board's power to direct closure, prohibition or stoppage of electricity and water under section 33A of the Water Act is real, and boards do use it against units caught discharging untreated effluent.

Copy the other offices with a stake in it: the municipal body if the effluent enters a municipal drain, the irrigation department if it reaches a canal, and the industrial development corporation if the unit sits in its estate. One complaint to each, all referring to one another, makes it harder for any office to say it is someone else's problem.

If months pass and nothing changes, the NGT is the forum built for this, because effluent raises a substantial environmental question under the Water Act, one of the seven Acts in Schedule I of the NGT Act. The tribunal usually starts by asking a joint committee, often the board, the CPCB and the DM, to inspect and report.

What counts as industrial water pollution in law

More than most people think. The Water Act needs the board's consent for discharging polluting matter into a stream, a well, a sewer or on land, and a stream is defined widely enough to cover rivers, canals, drains and ponds. The bar on knowingly letting polluting matter into a stream or well (section 24) and the consent requirement (section 25) are at the heart of most effluent cases.

In practice the cases we see fall into a few patterns. A unit with no treatment at all pipes wastewater into the nearest nala. A unit with an effluent treatment plant runs it only when an inspection is expected, or runs it at half capacity. A unit lets accumulated effluent out at night or during heavy rain, when nobody notices the colour of the drain. Tankers carry effluent away and empty it on a roadside, in a pit or in a river bed. Some units bore into the ground and push effluent down. And ETP sludge, which is often hazardous waste, gets dumped on open land, where rain washes it into fields and wells.

Each pattern leaves different evidence. A bypass pipe is found by inspecting the boundary wall; night discharge by timed photos and samples taken at that hour; reverse boring by testing surrounding handpumps. Our guide on proving groundwater contamination from industry covers that last pattern.

The law in plain words

Which authority to approach, and what each can do

Most effluent problems touch more than one office. This is the usual division of work.

The NGT bench depends on the state: the Principal Bench in New Delhi, or the zonal benches at Bhopal, Pune, Kolkata and Chennai. Our page on filing a case in the NGT explains the filing itself.

A plan for residents and farmers: from first complaint to the NGT

This is the order that works in most effluent cases. You can run the early steps without a lawyer.

The biggest delay we see is people skipping the RTI and the board complaint and going straight to court. The tribunal will ask what the board said.

How to prove the water is polluted, and by whom

You need to show two things: the water is polluted, and the pollution comes from this unit. A private test from a NABL accredited laboratory, for pH, colour, COD, BOD, TDS and any metal you suspect, is useful to persuade the board to sample. But a bottle you filled yourself can be attacked on how it was collected, so treat it as a lever, not final proof.

The board's own sample is stronger. The Water Act lays down a procedure for board sampling, with notice to the occupier and a split sample sent to a recognised laboratory, and a result taken that way is hard to dispute. So ask for sampling at named points: the final outlet, and the drain just upstream and downstream.

Linking the pollution to the unit is where cases are won. Upstream and downstream samples, the colour of the discharge matching the unit's product, the timing of discharge matching shift hours, a pipe through the boundary wall, and a water balance that does not add up (more water drawn and used than treated or recycled) all point the same way. The guide on photos, lab reports and RTI replies as NGT evidence covers how to present this.

Documents to collect

What we do at each stage

Our work changes with the stage the matter has reached and with which side you are on.

• Reading the file first. We go through the RTI reply, consent orders and inspection reports to find what the unit was permitted to discharge and where the board's record is weak.
• Drafting the complaint. A complaint naming the provision, the discharge point and the action sought gets a different response from a general grievance.
• Escalating. Where the regional office is slow, we write to the board's head office, the CPCB and the DM, and use the Water Act s.49 notice where useful.
• Filing in the NGT. We prepare the original application with the evidence, the right respondents and a clear prayer.
• Working with the joint committee. We help clients point out discharge points during inspection and object where the report is thin.
• Defending units. We reply to show-cause notices, negotiate conditions for revocation of closure, and appeal directions to the NGT within 30 days.
• Enforcement. When orders are not followed, we file execution applications.

Our factory has received a notice about effluent. What now?

Read the date first. A direction under section 33A can be appealed to the NGT under section 33B within 30 days of communication, and the tribunal can allow a further 60 days only for sufficient cause. A show-cause notice usually gives you 7 to 15 days to reply; whatever it says, reply within it. When Advocate B.K. Singh reviews an effluent notice for a unit, he looks first at what the inspection actually found, because a notice built on a single grab sample during an ETP breakdown is answered very differently from one built on a bypass pipe.

Then be honest about the facts. If the ETP was not working, say what failed, what has been repaired and how a repeat will be prevented, with bills and photos. Denying an obvious bypass damages credibility. If the inspection was flawed, for example the sample came from a holding tank rather than the final outlet, say so specifically.

If the board has already directed closure or disconnection, the practical route is usually to show compliance and apply for revocation, often with conditions or a bank guarantee. Our pages on replying to a closure notice and on environmental compensation demands explain both. The guide on ETP failures sets out the risks in more detail.

Industries that come up most often

A few industries generate effluent that is hard or costly to treat, and they account for most complaints: textile dyeing units (coloured, salty water), tanneries (chromium), distilleries and sugar mills (strong organic waste), electroplating units (cyanide and heavy metals), pharmaceutical and chemical units, and dairies, slaughterhouses and food processors (effluent that rots and smells).

Each has its own standards and its own common failures, and several are subject to zero liquid discharge conditions in many states. We have separate guides on pollution from textile dyeing units, tannery pollution and chromium contamination and distillery and sugar mill effluent.

Can we get compensation for crops, cattle or drinking water?

Yes, and the time limit is longer than for an ordinary NGT application. Under section 15 of the NGT Act, a victim of pollution can claim relief and compensation, restitution of damaged property and restitution of the environment within 5 years from the date the cause of action first arose. The polluter pays principle under section 20 means the unit responsible bears the cost of repairing the damage, not just of stopping it.

What matters is proof of loss. A farmer should have the patwari's or agricultural officer's report, photos and the expected yield; a family whose handpump turned unusable should have test reports and the cost of buying water. Health claims need medical records and are harder to link to the pollution. The court fee is 1% of the compensation claimed (minimum ₹1,000), so claim what you can justify.

Boards also levy environmental compensation on the unit using the CPCB formula, but that money goes to restoration, not to individual victims. Our page on claiming compensation for pollution damage explains the difference.

Mistakes that weaken water pollution cases

The first is waiting. People put up with a black drain for years, and by the time they act the six-month limit for an ordinary application has become an argument for the unit. A continuing discharge does give a continuing cause of action, but it is better to start while the evidence is fresh.

The second is relying on one dramatic photo. A single picture of foam proves little about who caused it; ten photos over a month from the same spot near the outlet tell a story. The third is complaining only to the police or a municipal helpline and then telling the NGT the authorities did nothing. The tribunal wants to see that the State Board was told.

On the industry side, the usual error is treating inspection as a formality. Logbooks written up the night before and dry aeration tanks are noticed. And on both sides, people file without reading the consent order, though whether any discharge is allowed changes the whole case.

Before you complain or file

When the NGT is not the right first step

If you have not yet written to the State Board, the NGT is usually premature: the tribunal often just directs the board to look into the complaint, which a letter could have achieved. A single blocked sewer overflowing into your lane is for the municipal body, not the tribunal.

Equally, if your real dispute is a private one, for example a neighbour's unit damaging your boundary wall, a civil suit may fit better. Advocate B.K. Singh's usual advice to villagers who come with an effluent problem is to get the board's sample report on paper before spending money on a tribunal case, because that one document decides how strong the case will be.