- Identify all surface water drains on site and mark them on the drainage plan
- Protect surface water drain inlets with covers, neoprene mats, or drain guards
- Install silt fences and settlement ponds to intercept sediment before it reaches drains
- Direct concrete washout water to designated containment areas only
- Store fuel, oil, and chemicals on bunded hard standings away from drains
- Brief all site workers on the location of surface water drains and protection measures
- Inspect drain protection measures daily and after heavy rainfall events
- Report any spill or discharge to a surface water drain immediately
- Use spill kits promptly to contain and clean up any accidental releases
- Keep a site drainage plan in the site office for reference by all personnel
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- DON'T discharge any liquid into surface water drains without authorisation
- DON'T wash out concrete, mortar, or plaster into surface water drains
- DON'T store chemicals or fuels where spills could reach surface water inlets
- DON'T remove drain protection measures without replacing them immediately
- DON'T assume a drain goes to foul sewer — check the drainage plan first
- DON'T allow site vehicles to track mud and silt into surface water gullies
- DON'T pour paint, solvents, or cleaning agents into any drain on site
- DON'T ignore blocked or damaged drain protection — repair it straight away
- DON'T pump silty water from excavations directly into surface water drains
- DON'T wait to report a pollution incident — early response limits the damage
See also: Pollution Incident Reporting | Silt and Sediment Control
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