Consider the following parameters with regard to their general standards for effluent discharge into marine coastal areas, as per the Environment Protection Rules, 1986:

1. Temperature of the discharged effluent shall not exceed 5°C above the receiving water temperature.
2. The permissible limit for Total Residual Chlorine is 1.0 mg/l.
3. Dissolved Phosphates (as P) do not have a specified maximum allowance for discharge into marine coastal areas.

Which of the statements given above is/are correct?