Drainage Services Department

• Project Documents
• Environmental Monitoring Data
  • Baseline Monitoring Data
    • Effluent Quality Monitoring
      • Effluent Quality (at Existing Chamber No. 15)
      • Monitoring Location Map
    • Marine Water Quality
      • Station 1 - Edge of Mixing Zone (Northwest of effluent diffuser)
      • Station 2 - Edge of ZID (Northwest of effluent diffuser)
      • Station 3 - Edge of ZID (Southeast of effluent diffuser)
      • Station 4 - Edge of Mixing Zone (Southeast of effluent diffuser)
      • Station SM6 - Control Station
      • Station SM12 - Control Station
      • Monitoring Location Map
    • Sediment Quality Monitoring
      • Station 1 - Edge of Mixing Zone (Northwest of effluent diffuser)
      • Station 2 - Edge of ZID (Northwest of effluent diffuser)
      • Station 3 - Edge of ZID (Southeast of effluent diffuser)
      • Station 4- Edge of Mixing Zone (Southeast of effluent diffuser)
      • Station WS1 - EPD Sediment Monitoring Station
      • Station VS6 - EPD Sediment Monitoring Station
      • Station SS3- EPD Sediment Monitoring Station
      • Station SS4 - EPD Sediment Monitoring Station
      • Monitoring Location Map
    • Benthic Survey
      • Station 1 - Edge of Mixing Zone (Northwest of effluent diffuser)
      • Station 2 - Edge of ZID (Northwest of effluent diffuser)
      • Station 3 - Edge of ZID (Southeast of effluent diffuser)
      • Station 4- Edge of Mixing Zone (Southeast of effluent diffuser)
      • Station WS1 - EPD Sediment Monitoring Station
      • Station VS6 - EPD Sediment Monitoring Station
      • Station SS3- EPD Sediment Monitoring Station
      • Station SS4 - EPD Sediment Monitoring Station
      • Monitoring Location Map
    • Marine Water Quality Monitoring for Emergency Discharge
    • Final Review Report
  • Impact Monitoring Data
    • Effluent Quality Monitoring
      • Effluent Quality(at Existing Chamber No. 15)
      • Monitoring Location Map
    • Marine Water Quality monitoring
      • Station 1 - Edge of Mixing Zone (Northwest of effluent diffuser)
      • Station 2 - Edge of ZID (Northwest of effluent diffuser)
      • Station 3 - Edge of ZID (Southeast of effluent diffuser)
      • Station 4- Edge of Mixing Zone (Southeast of effluent diffuser)
      • Station SM6 - Control Station
      • Station SM12 - Control Station
      • Monitoring Location Map
    • Effluent Quality and Marine Water Quality Monitoring (from Jan 2014 onwards)
    • Sediment Quality Monitoring
      • Station 1 - Edge of Mixing Zone (Northwest of effluent diffuser)
      • Station 2 - Edge of ZID (Northwest of effluent diffuser)
      • Station 3 - Edge of ZID (Southeast of effluent diffuser)
      • Station 4- Edge of Mixing Zone (Southeast of effluent diffuser)
      • Station WS1 - EPD Sediment Monitoring Station
      • Station VS6 - EPD Sediment Monitoring Station
      • Station SS3- EPD Sediment Monitoring Station
      • Station SS4- EPD Sediment Monitoring Station
      • Monitoring Location Map
    • Benthic Survey
      • Station 1 - Edge of Mixing Zone (Northwest of effluent diffuser)
      • Station 2 - Edge of ZID (Northwest of effluent diffuser)
      • Station 3 - Edge of ZID (Southeast of effluent diffuser)
      • Station 4- Edge of Mixing Zone (Southeast of effluent diffuser)
      • Station WS1 - EPD Sediment Monitoring Station
      • Station VS6 - EPD Sediment Monitoring Station
      • Station SS3- EPD Sediment Monitoring Station
      • Station SS4 - EPD Sediment Monitoring Station
      • Monitoring Location Map
    • Whole Effluent Toxicity Test (WETT)
    • Whole Effluent Toxicity Test (WETT) (from Jan 2014 onwards)
    • Incident Report on Discharge of High TRC Effluent exceeding 0.4mg/L from SCISTW
  • Dosage Record
    • Dosage of Sodium Hypochlorite and Sodium Bisulphite used for the Chlorination/Dechlorination process
    • Incident Report on Dosage Sodium Hypochlorite above 20mg/L in SCISTW
• Project Description (Operational Phase Monitoring)