Under the National Environmental Management: Waste Act (NEMWA, Act 59 of 2008), your responsibility for the waste you create does not end when it leaves the site. If you hand builder's rubble to an unlicensed transporter who then dumps it illegally, you can still be liable. The penalties are serious: up to R10 million and/or 10 years imprisonment for major contraventions. The good news is that for a small contractor handling clean rubble, the rules are manageable once you understand the duty of care.
The waste hierarchy
NEMWA sets an order of preference for dealing with waste: avoid, then reduce, then re-use, then recycle, then recover, and only then dispose. In practice that means designing out waste where you can, re-using clean rubble as fill or sub-base, sending what is left to a registered facility, and never dumping. Working down that order also saves you money, because clean separated rubble is cheaper to get rid of than mixed debris.
Section 16 duty of care
Section 16 of NEMWA places a general duty on anyone who holds waste to take reasonable steps: avoid generating waste, minimise how harmful it is, make sure it is treated and disposed of lawfully, and prevent harm to public health. The part that catches contractors out is this: your liability does not stop at the site boundary. If you use an unlicensed transporter, you remain on the hook for what they do with your waste. So the duty of care is not just about your own conduct; it is about who you hand the waste to.
What NEMWA asks of a small contractor
Five practical steps cover most jobs:
- Know your waste stream. Clean builder's rubble (concrete, bricks, sand, plaster, tiles) is general waste under NEMWA, classified as Type 4, as long as it does not contain asbestos, lead paint or other contamination. It is not hazardous.
- Apply the duty of care. Even for general rubble: avoid unnecessary waste, have it collected by a registered or permitted entity, and never dump.
- Classify your waste in time. You must classify waste within 180 days of generating it, using the SANS 10234 system (SANS is the South African National Standard). For clean rubble this is straightforward (Type 4, general waste). Mixed debris with possible contaminants is more involved.
- Use a registered transporter. If a third party collects the waste, confirm they are registered or permitted by your metro. Keep their name, company and vehicle details on record. (Metro permit rules are covered in Skip Hire and Waste Disposal.)
- Dispose lawfully and keep records. Waste must go to a registered landfill or transfer station, and you must keep a record of where it went.
For very small contractors there is a useful simplification: if you generate less than 20 kg of hazardous waste a day and your rubble is clean and general, you do not need a Waste Management Licence for the generation itself. Your real obligations are lawful disposal and not using unregistered transporters.
Crushing and re-using rubble on site
On-site crushing of concrete, brick and masonry is legal under NEMWA, because material that has been re-used, recycled or recovered ceases to be "waste". Crushed rubble used as compacted sub-base for a driveway or new paving is a recognised re-use, and no licence is needed for small-scale on-site crushing and immediate re-use on the same site. Once the crushed material is re-incorporated, it is no longer waste at all. Mobile crusher hire is available from plant-hire firms for bricks, concrete and tile. What you may never crush is asbestos-containing material, or anything contaminated with hazardous substances. Note too that some metros impose noise, dust or vibration limits on crushing in residential areas, so check your local by-law before you fire up a crusher.
Worked example: rubble from a bathroom strip-out
You strip a small bathroom: floor and wall tiles, cement board, old sanware and plasterboard, in a post-2003 building with no asbestos suspected.
- Inspect for asbestos first. Post-2003 build, no records, so check for older-looking corrugated sheets, insulation or ceiling tiles. If asbestos is genuinely suspected, stop and commission an asbestos risk assessment before going further.
- Classify. Clean tiles, cement, brick and ceramic sanware are general waste (Type 4). Modern paint scrapings and gypsum plasterboard are general waste. Anything chemically contaminated (old waterproofing compounds, for example) is classified separately as potentially hazardous.
- Segregate on site. Keep clean rubble apart from soft waste, plumbing offcuts and anything hazardous. It is cheaper to dispose of and easier to comply with.
- Pick a disposal route up the hierarchy. Re-use clean crushed rubble as sub-base if volume justifies it; otherwise book a skip from a registered company or take it yourself to a licensed transfer station.
- Use a registered transporter if a third party collects, and keep their details. You remain liable if they dump.
- Keep a record. Date, material type, rough weight or volume, and where it went. For a small job, a photo of the skip and the landfill receipt is enough. That is your duty-of-care record under section 16.
Copper piping can be sold to a registered scrap dealer; old sanware can be donated or taken to a transfer station; silicone and grout go in with the general rubble.
Common mistakes
- Thinking your liability ends at the gate. Under section 16 it does not. Using an unlicensed transporter keeps you liable.
- Mixing clean rubble with contaminated or soft waste. It pushes up disposal cost and complicates classification.
- Skipping classification. You have 180 days to classify under SANS 10234; clean rubble is Type 4, but you still need to have done it.
- Crushing the wrong thing. Never crush asbestos-containing or contaminated material.
- Keeping no records. A simple log plus receipts is your defence if a dumping allegation ever lands on you.
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