Stone Crusher and Quarry Pollution: Rules and Remedies

A stone crusher may run only with consent to establish and consent to operate from the State Pollution Control Board, at a site that meets the state's siting norms, and with working dust controls such as water sprinklers, enclosures, covered conveyors, wind-breaking walls, paved internal roads and a green belt. A quarry also needs a lease and environmental clearance. If dust settles on your crops and roofs, or blasting and trucks shake the village, complain to the State Board regional office with dated photos. The board can inspect, close the unit and cut its power, and the NGT can step in if it does not.

This page is for two kinds of reader: villagers and residents living with crusher dust and quarry noise, and crusher or quarry owners who have received a notice or closure order. It sets out the rules, how complaints are handled, what the board and the NGT can do, and what we do for each side.

Stone quarries are a form of mining, so for lease and boundary problems also read our page on illegal mining near your village. For complaints in general, see pollution complaints that get action.

The essentials

A stone crusher near our village is covering everything in dust. What can we do?

Complain to the regional office of the State Pollution Control Board, because crushers are regulated under the Air Act and need the board's consent. Send copies to the DM and SDM. Say where the crusher is, its name if it has one, when it runs, and what the dust is doing: coating crops and leaves, settling inside homes, choking a school or blowing across a road. Attach dated photos and short videos, ideally showing the plume and the source together.

Ask the board for four things: an inspection, a check of the unit's consent and its validity, verification of the dust control measures in the consent, and ambient air sampling near the nearest homes. The last request matters. A board officer who walks around the crusher at noon may see nothing wrong. A sampler placed at the edge of the village for a day tells a different story if the dust is real.

If the crusher sits close to homes, a school or a hospital, add that the siting looks to break the state's distance norms and ask the board to verify. Our guide on stone crusher siting rules near schools and hospitals explains how those norms work.

What rules does a stone crusher have to follow?

A crusher needs consent to establish before it is built and consent to operate before it runs, under section 21 of the Air Act and, where it uses water, section 25 of the Water Act. Before granting consent the board looks at the site against the state's siting criteria, which set minimum distances from habitation, schools, hospitals, national and state highways, rivers and other sensitive places. The distances vary from state to state and have been revised over time, so always check your state's current norms rather than relying on a figure someone quotes.

The consent order then lists conditions. Typically these cover enclosure of the crusher and screens, water sprinkling at the jaw, conveyor transfer points and stockpiles, covered conveyors, a wind-breaking wall around the site, metalled or paved internal roads, a green belt of trees around the boundary, covered transport of material, limits on working hours, and periodic monitoring. The Environment (Protection) Rules 1986 also contain emission standards specific to stone crushing units.

The raw stone has to come from a lawful source, meaning a quarry with a lease, an EC and consent, with transit passes for each load. A crusher fed by illegally quarried stone is part of the illegal mining chain, and boards and districts increasingly check this. In Delhi NCR, crushers are also subject to GRAP, and they are ordered to stop at the higher stages; see our guide on GRAP stages.

Dust control measures a crusher is usually required to have

The exact list is in each unit's consent order, which you can get by RTI. These are the measures most commonly required.

Laws that apply to crushers and quarries

Is crusher dust dangerous to health?

Yes. Crushing stone releases fine particles, and with many rock types those particles include crystalline silica. Long exposure to silica dust can cause silicosis, an incurable lung disease, and workers inside crushers and quarries are most at risk. Villagers living downwind breathe less of it than workers do, but for years on end, and they report coughing, eye irritation and breathing trouble, especially in children and older people.

Medical evidence helps a complaint, but you do not need to prove that someone has silicosis before the board acts. Dust beyond the standards, a crusher without controls or consent, or siting too close to homes is enough. If workers or villagers have been diagnosed, keep the records. Our guide on silica dust from crushers covers the health side and the legal remedies in more detail.

Pollution from the quarry itself: blasting, noise, roads and water

The quarry that feeds the crusher brings its own problems. Blasting throws dust and sometimes stone, shakes houses and frightens cattle. Drilling and excavators make noise from early morning. Heavy trucks break village roads and raise dust all the way to the highway. Deep pits collect water and become drowning hazards, or cut into the water table and drain nearby wells.

Each of these is controlled by the quarry's lease, its EC conditions and its consent order, which commonly deal with controlled blasting, blasting hours, haul road maintenance, fencing of pits and protection of water sources. If houses have cracked or someone has been hurt by flying stone, read our guide on blasting damage from a quarry, which covers compensation.

How to complain against a polluting stone crusher

Which authority deals with which crusher or quarry problem

What to collect before you complain

What the pollution board does after a crusher complaint

Usually an inspection first, then a show-cause notice, and closure only if the problem is serious or the unit has no consent. The inspecting officer checks the consent, looks at sprinklers, enclosures and roads, and may collect ambient samples. If the unit has no consent or ignores its conditions, the board issues a show-cause notice and, after hearing the owner, can direct closure and disconnection of electricity. It may also assess environmental compensation using the CPCB formula.

Closure is rarely the end. A closed crusher can apply for revocation by showing it has fixed the problems, and boards often allow restart with conditions or a bank guarantee. That is fair if the fixes are real. Residents should ask to be told of any revocation application and should check, after restart, that the sprinklers are actually running. A follow-up complaint with fresh photos within a month of restart is often what keeps a unit honest.

When a whole cluster of crushers is the problem

In many districts crushers sit in clusters along a highway or at the foot of a hill, and each owner says the dust belongs to the next unit. The board can and should assess the cluster as a whole. Ask in your complaint for an ambient air study of the cluster, a list of every unit with its consent status, and action against units with no consent at all.

The NGT often looks at clusters too, asking a joint committee to inspect every unit and report on cumulative impact. A cluster case takes more preparation, because each unit must be named as a respondent, but it avoids the situation where one crusher is closed and the dust barely changes.

For crusher owners: show-cause notice or closure order

Reply to a show-cause notice within the time given, in writing, with evidence of compliance: photos of sprinklers running, the enclosure, the wind wall, the green belt, monitoring reports from an approved laboratory and proof of consent. Where something is missing, say what you are doing about it and by when. Our page on replying to a closure notice explains how to frame the reply.

If a closure direction has already been issued under section 31A of the Air Act or section 33A of the Water Act, you have two paths. Fix the problems and apply to the board for revocation, or appeal to the NGT within 30 days of communication if the direction is wrong in law or fact. When Advocate B.K. Singh reviews a closure direction against a crusher, the first thing he checks is the date it was communicated, because the 30-day clock for an appeal starts from then, and the second is whether the unit was actually heard before the order.

If the problem is that consent was refused or not renewed, the first appeal goes to the state appellate authority under section 31 of the Air Act, not straight to the NGT. Keeping consent current is the cheapest protection; see our page on consent to operate.

What we do in crusher and quarry matters

• For residents: RTIs for consent and siting papers, a targeted complaint to the board and district, the SDM nuisance route where useful, and an NGT application with a request for a joint inspection and air sampling.
• For residents after an order: objections to weak committee reports, and execution if the order is ignored.
• For owners: replies to show-cause notices, compliance plans, revocation applications after closure, appeals to the NGT against closure directions and to the appellate authority on consent.
• For owners in NGT cases: a defence built on documents and monitoring data, with a realistic compliance offer where gaps exist.

Fees are agreed in writing, stage by stage.

Common mistakes on both sides

Residents often complain only about dust and forget to ask whether the unit has consent at all. A crusher with no consent is a far easier case than one with consent and poor controls. They also quote siting distances from social media that may be from another state or an old notification. Get your state's current norms by RTI.

Owners often treat a show-cause notice as routine and reply with a one-line denial, then are surprised by a closure order. Others restart after closure without written revocation from the board, which makes the next order far harsher. Both sides underrate photographs: a dated video of dry sprinklers, or of sprinklers running, often settles the argument.

When a crusher complaint is unlikely to succeed

A crusher that has valid consent, meets the siting norms, runs its controls and keeps to its hours may still produce some dust and noise. The law does not promise zero impact, and a complaint that asks for closure of a compliant unit will usually end with a report saying all is in order. In that case, aim at specific gaps instead: a broken wind wall, a missing green belt, uncovered trucks, work after hours.

Similarly, if you moved next to a crusher that was lawfully sited years earlier, the board will look at whether it complies now, not at whether you would prefer it elsewhere. Siting challenges are strongest when the approval was wrong at the time, or when the unit has expanded without fresh consent. Be clear-eyed about which of these situations you are in before spending money on litigation.

Related guides

If a crusher has no consent at all, read how to get a crusher without consent closed. If river sand is the issue, see our page on illegal sand mining.