What requirement should be fulfilled by potable water (water for drinking purpose)?

Explanation

To determine the requirements that should be fulfilled by potable water (water for drinking purposes), we can outline the following steps:

### Step-by-Step Solution:

1. **Definition of Potable Water**:
- Potable water refers to water that is safe for human consumption. It should not pose any health risks when ingested.

2. **Requirement 1: Free from Suspended Impurities**:
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