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| List-$I$ | List-$II$ |
|---|---|
| $(A)$ લેડ (Lead) | $(I)$ $500 \text{ ppm}$ |
| $(B)$ સલ્ફેટ (Sulphate) | $(II)$ $50 \text{ ppm}$ |
| $(C)$ નાઈટ્રેટ (Nitrate) | $(III)$ $50 \text{ ppb}$ |
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