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Document Version: 2025

ECM Best Practices

Overview

The best way to minimise erosion is to reduce the amount of exposed earth surfaces on site. This can be achieved by phasing of earth works, covering up exposed earth areas with erosion control blankets of canvas covers, early reinstatement, paving etc.

ECM Provisions at a Construction Site

1.

Seal Hoarding Footing and Hoarding Gaps

2.

Provide Hump at Site Entrance

3.

Provide Adequate Silty Water Treatment Capacity

4.

Provide Adequate Holding Pond

5.

Provide Cut-off Drain around the Site Boundary

6.

Isolate Bare Earth Areas with Silt Fences

7.

Cover Stockpiles

8.

Pave up Access Path / Road

9.

Cover Bare Earth area After Work

10.

Pave up Site Office Areas

11.

Provide Cut-off Drain to Separate Clean Water from Silty Water

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12.

Install CCTV at Public Drain to Monitor Discharge