Open full-size vector drawing · Use written dimensions; do not scale the screen.
Required controls and locations
| Control | Location | Instruction / affected activity |
|---|---|---|
| EC1 — DP01 protection | DP01 centre E7400 / N1200 | Before any proposed disturbance, the supervisor must arrange and verify suitable inlet protection. Keep a safe overflow arrangement. Product/method requires technical review; no discharge of sediment, concrete wash water or contaminants to the pit is authorised. |
| EC2 — T01 protected zone | Centre E2500 / N11000; radius 2000 | Keep people, storage, equipment and ground disturbance outside the marked zone. Do not move the boundary yourself. |
| EC3 — MS01 material storage | E1000–3500 / N2000–4500 | Store covered granular material in the designated area; prevent migration toward the swale, pit or service markers. |
| EC4 — WO01 washout | E1000–2500 / N5000–6500 | Use a contained washout station for any future approved concrete activity; no wash-water discharge to soil or drains. Removal/disposal arrangements require supervisor confirmation. |
| EC5 — WB01 waste | E3500–5000 / N2000–4000 | Use labelled containers to separate concrete/mineral waste, packaging and general waste. No contamination status or disposal entitlement is inferred. |
| Access and retained features | G01 / EA1, SW01 and WM01 | Keep the gate/apron clear; retain/protect swale and service references. No service disturbance is authorised. |
Inspection and reporting
Inspect the relevant controls before the activity, after rain and before leaving. Record location, observed condition, any defect and the report to the training supervisor. Stop the affected activity until unclear/missing controls are resolved. The source-reading task identifies these instructions; physical work and control installation are outside the current learner task.