ETP Not Working: Legal Risks for Factories

If your factory's effluent treatment plant is not working and effluent is leaving the premises, you are in breach of your consent to operate, and the State Pollution Control Board can direct closure and stop your electricity and water under section 33A of the Water Act. It can also levy environmental compensation for every day of violation, and residents can take the unit to the NGT. The legal risk is not the breakdown itself. It is a breakdown that is hidden, left unrepaired, or managed by letting untreated effluent out. How you act in the first few days decides how serious it becomes.

This guide is written for factory owners, directors and plant managers. It covers what the board treats as a non-working ETP, why ETPs fail, the legal consequences, what to do the day the plant breaks down, how to handle the inspection and the notice that follows, and how to get a closure revoked.

If you are a resident dealing with a unit whose ETP is not running, see our guide on complaining about untreated industrial effluent and the wider page on industrial effluent and water pollution remedies.

The essentials

Our ETP is not working. What are the legal risks?

Five, in rough order of how fast they arrive. The board can issue a show-cause notice and then direct closure of the unit and disconnection of electricity and water under section 33A of the Water Act. It can levy environmental compensation using the CPCB method, which multiplies factors including the number of days of violation. It can refuse or delay renewal of your consent to operate, or add tougher conditions such as a bank guarantee. The unit and the people in charge can face penalty proceedings under the Water Act, which after the 2024 amendment are largely decided by an adjudicating officer. And residents or farmers affected by the effluent can file an application in the NGT, which may order restoration and compensation on top of what the board has done.

None of this follows automatically from a pump failing on a Tuesday. Boards understand that machinery breaks. What they act hard against is a unit that keeps producing while the ETP is down and lets the effluent go, a unit whose ETP was never adequate for its production, and a unit that runs the plant only on inspection days. The question an inspector is really asking is whether this is an accident or a habit.

When Advocate B.K. Singh is asked to advise a unit after an ETP failure, the first thing he wants to see is the logbook and the electricity readings for the ETP over the previous three months, because those two records usually show whether the board will see a breakdown or a pattern.

What the board treats as an ETP 'not working'

More situations than owners expect. The obvious one is a plant that is switched off or broken, with effluent going out raw. But inspection reports also record an ETP as non-functional when the aeration tank has no live biomass, when the clarifier is overflowing sludge, when chemical dosing tanks are empty, when the tertiary filters or RO are bypassed, when sludge drying beds are full and sludge is being dumped elsewhere, or when the plant is running but the outlet fails the consent standards.

Inadequacy counts too. If your consent was granted for a certain production and effluent volume and you have since added machines or shifts, the ETP may be running perfectly and still be too small. The board compares your water consumption, production and treated effluent volume; if more water goes in than can be accounted for, it will ask where the rest went. Meters that do not work, or a separate electricity meter for the ETP that shows almost no consumption, lead to the same suspicion.

Finally, there is the bypass. Any pipe, hose or channel that lets effluent reach a drain, sewer, pit or open land without passing through the treatment units is treated as deliberate. Even an emergency overflow line that is used regularly will be seen this way.

Common ETP failures and what follows

What to do the day the ETP breaks down

These steps are about limiting both the pollution and the legal damage. They work best when done in this order and written down as you go.

The Environment (Protection) Act (section 9) also places a duty on whoever is responsible for a discharge in excess of standards, caused by an accident or unforeseen event, to prevent or reduce it and to inform the authorities. A written breakdown report is how you show you met that duty.

The provisions that apply

Why ETPs fail, and why it matters legally

Most ETP failures we see are not mechanical accidents. They are the result of decisions made months earlier. The commonest is growth: the unit adds machines, a second shift or a new product, but the ETP stays the size it was when consent was granted. The plant then runs overloaded, the biological stage cannot keep up, and the outlet drifts out of norms. Legally this is doubly bad, because the expansion itself may have needed consent and the board will see the ETP failure as a symptom of operating beyond permission.

The second cause is design. Small units often buy a packaged ETP from a vendor without a treatability study of their actual effluent. When the effluent turns out to be more saline, more acidic or more toxic than the design assumed, no amount of operation fixes it. The third is operation: no trained operator, no daily testing, chemicals not dosed to save money, blowers switched off at night to cut the electricity bill. Inspectors look for exactly these signs.

The fourth is sludge. A plant that cannot get rid of its sludge stops working, because tanks fill and the clarifier carries sludge over to the outlet. Units that have not tied up with an authorised TSDF or arranged for authorised transport often end up dumping sludge, which creates a second, more serious violation. Our guide on hazardous waste manifests and transport covers that side.

Records that protect you on inspection day

How to reply to a show-cause notice about the ETP

Reply within the time given, even if only to ask for documents or a short extension, and keep proof of delivery. A reply that arrives after the board has already passed a closure direction is far less useful. Ask for a copy of the inspection report and the sample analysis if they were not enclosed; you cannot answer properly without them.

The reply should do three things. State the facts honestly: what failed, when, and what was done. Answer the specific findings: if the report says the meter was not working, show the replacement bill; if it says the outlet exceeded standards, explain when that sample was taken in relation to the breakdown and attach later test results. And show the remedy: repairs completed, an upgrade ordered, an operator hired, a sludge contract signed, with documents. Offer a time-bound plan for anything not yet done.

Where the board's findings are wrong, say so with particulars. A sample taken from the equalisation tank rather than the final outlet, an inspection during a reported and documented breakdown, or a misreading of the consent condition are all legitimate grounds. What does not work is a blanket denial of something the inspector photographed. Our page on pollution control board notices explains how we prepare these replies.

The board has ordered closure or cut our power. How do we get it revoked?

Usually by proving compliance and applying for revocation, rather than by fighting the order head on. Boards revoke closure directions when the unit shows the ETP is repaired or upgraded and working, often after a fresh inspection and sample, and often on conditions such as a bank guarantee that is forfeited if the breach recurs. Some boards also require payment of the environmental compensation assessed, or an undertaking about it, before revocation.

If the direction itself is unjustified, for example it was passed without a proper hearing, rests on a sample that was not taken from the outlet, or is out of proportion to a short documented breakdown, an appeal to the NGT under section 33B is available within 30 days of communication. The two routes can run together: apply for revocation while preserving the appeal. Missing the 30 days leaves only the 60-day extension, which needs sufficient cause. Our pages on closure notices and electricity and water disconnection by the board cover this in more detail.

How environmental compensation for an ETP failure is worked out

The board does not pick a number. It applies the CPCB methodology, which multiplies a pollution index for your industry category, the number of days of violation, a rupee factor, a scale factor for the size of the unit and a location factor. You cannot change your category or size, but you can affect the number of days, and that is where records matter.

If the board has no clear evidence of when the ETP stopped working, it may count from the last date it was known to be functioning, or from an earlier inspection, which can multiply the amount. A logbook showing normal operation up to a specific breakdown date, a letter to the board reporting the breakdown, and a test report after restart give you a firm start and end date. Units without records often end up arguing about months instead of days.

Environmental compensation can be challenged before the authority that imposed it and, depending on the order, in appeal. Our guide on what environmental compensation means explains the basis, and the page on environmental compensation demands covers challenges.

Mistakes factories make after an ETP failure

Keeping production running is the most expensive one. It feels like protecting the business, but it converts a repairable breakdown into a discharge case. The second is silence: hoping to fix the plant before anyone notices, without telling the board. If a complaint comes in meanwhile, the board sees concealment. The third is writing up the logbook afterwards. Inspectors and the NGT have seen enough backfilled logbooks to spot uniform handwriting and suspiciously perfect numbers.

The fourth is fixing the symptom and not the cause. Replacing a burnt blower when the real problem is overload means the next failure is weeks away. The fifth is treating the board's notice as a negotiation to be dragged out. Delay rarely helps, because the days of violation keep counting. And the sixth is ignoring the residents. A unit that meets the RWA or panchayat, explains what went wrong and what is being done, often avoids a tribunal case that would otherwise follow. For units already facing one, our guide on defending an NGT case filed against your industry sets out the approach.

An ETP compliance self-check

Related guides

If your consent requires zero liquid discharge, read who must comply with ZLD and how boards check it. Units connected to a shared plant should read CETP compliance explained. Advocate B.K. Singh's advice to units after a failure is simple: write to the board before the board writes to you.