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1. Sender's Details: Full name, address, customer ID/account number, and contact information of the complainant

2. Recipient's Details: Name, designation, and address of the water supply authority or relevant department

3. Date: Current date of writing the complaint letter

4. Subject Line: Clear and specific subject indicating the nature of the water supply complaint

5. Problem Description: Detailed explanation of the water supply issue, including when it started and its impact

6. Previous Communications: Reference to any previous complaints or communications regarding the issue

7. Specific Request: Clear statement of what action you want the authority to take

8. Timeline Request: Reasonable timeframe within which you expect the issue to be resolved

9. Closing: Professional closing statement with your signature and name

1. Photographic Evidence: Photos showing water quality issues, damage, or other relevant visual evidence

2. Previous Correspondence: Copies of any previous complaints or communications with the authority

3. Water Quality Test Reports: If available, include laboratory reports showing water quality issues

4. Bills and Receipts: Copies of recent water bills and any receipts for expenses incurred due to the problem

5. Witness Statements: If applicable, statements from neighbors or other affected parties