1. GROUP 1 1.ABNER ALISTER YUMBODP85521 2.MOHD RASHDAN BIN TOPAP87964 3.NASRUN HISYAM BIN HALIMP89611 4.NUR SYAZA BINTI MOHAMAD FAHIMIP88969 5.OSAMAH KHAMEES ALIP90252 6.SITI KHAIRUNNISA BINTI MOHD RAZALIP88868 7.SITI NUR AIN BINTI SUHAIMIP86042 PROF. DATO’ DR. MUSHRIFAH BT. IDRIS

2. N 03 °25°59.8” E 102°55°41.8” Laut Gumum Laut Jemberau N 03 °25°20.8” E 102°55°40.9”

3. Laut Gumum Laut Jemberau

4. Parameters123Average Chlorophyll a (ug/L) 8.707.307.907.90±0.70 Conductivity (millisiemens) 0.03 0.03±0.00 Depth (m) 3.904.003.803.90±0.10 Dissolved Oxygen Percentage (%) 65.3065.6066.0065.60±0.35 Dissolved Oxygen Saturation (mg/L) 4.964.975.014.98±0.03 Total Dissolved Solid (mg/L) 18.20 18.20±0.00 Temperature (ºC) 29.7029.8029.7029.70±0.06 Secchi Disk (m) 0.370.380.370.37±0.06 In-situ Parameters Weather: Rainy during 1 st Sampling Surrounding: Near Chini Resorts and Indigenous people’s village

5. Parameters123Average Ammoniacal Nitrogen (mg/L)0.180.220.260.22±0.04 Biological Oxygen Demand (mg/L) 0.691.081.381.05±0.35 Chemical Oxygen Demand (mg/L) 10.020.0-15.0±7.07 pH (Litmus Paper)7.0 7.0±0.00 Total Phosphate (mg/L)0.170.32-0.25±0.11 Total Suspended Solid (mg/L)97.095.096.096.0±1.0 Ex-situ Parameters Weather: Rainy during 1 st Sampling Surrounding: Near Chini Resorts and Indigenous people’s village

6. Parameters1 (mg/L)2 (mg/L)3 (mg/L)Average (mg/L) As0.1250.1240.1230.124±0.001 Ca0.1091.3090.1100.510±0.693 Cd0.1010.099 0.100±0.001 Cr-0.026-0.030-0.010-0.022±0.014 Cu0.1280.126 0.127±0.001 Fe0.5400.4900.5140.515±0.025 Li-0.027 -0.027±0.000 Mg0.3610.3820.3600.368±0.012 Mn0.0660.0580.0610.062±0.004 Ni0.0830.0820.0830.083±0.000 Pb0.0960.0920.0890.092±0.004 Zn0.1080.1010.0980.102±0.005 Heavy Metals Measurement

7.  Water Quality Index (WQI) = (0.22* SlDO) + (0.19*SIBOD) + (0.16*SICOD) + (0.15*SIAN) + (0.16 * SISS) + (0.12 * SipH) = 79

8. Water Quality Index (WQI)

10. 1. Secchi Disk Calculations Average Summer Secchi disk = 0.37 meters TSI = 60 - 14.41 (ln Secchi disk (meters)) TSI = 60 - (14.41) (-0.99) TSI (SD)= 74.27 2. Total Phosphate Average Summer Surface Total Phosphorus = 245 ug/L TSI = 14.42 (ln Total phosphorus (ug/L)) + 4.15 TSI = (14.42) (5.50) + 4.15 TSI (P) = 83.46 Trophic State Index(TSI)

11. 3. Chlorophyll a Average Summer Chlorophyll a = 7.9 ug/L TSI = (9.81) (ln Chlorophyll a (ug/L)) + 30.6 TSI = (9.81) (2.07) + 30.6 TSI (chlorophyll a)= 50.9 Trophic State Index(TSI)

12. Chlorophyll (ug/L) Total Phosphate (ug/L) Secchi Disk (m SD) Trophic Classificatio n <30 - 40<0.95 – 2.6< 6 – 124 - >8Oligotrophic 40 - 502.6 – 7.312 – 142 – 4Mesotrophic 50 - 707.3 – 5624 – 960.5 – 2Eutrophic 70 - 100+56 - > 15596 - 384<0.25 – 0.5Hypertrophic Trophic State Index(TSI)

13. Parameters123Average Chlorophyll a (ug/L)6.55.97.46.6±0.755 Conductivity (millisiemens)0.029 0.029±0.000 Depth (m)4.24.1 4.1±0.058 Dissolved Oxygen Percentage (%)65.957.459.160.8±4.498 Dissolved Oxygen Saturation (mg/L) 4.954.254.074.42±0.465 Total Dissolved Solid (mg/L)17.0 17.0±0.000 Temperature (oC)29.629.529.729.6±0.100 Secchi Disk (m)1.201.111.161.16±0.045 In-situ Parameters Weather: Normal Surrounding: Oil Palm Estate (inactive)

14. Ex-situ Parameters Weather: Normal Surrounding: Oil Palm Estate (inactive) Parameters123Average Ammoniacal Nitrogen (mg/L) 0.050.080.070.07±0.015 Biological Oxygen Demand (mg/L) 0.560.350.640.52±0.15 Chemical Oxygen Demand (mg/L) 24.022.0-23.0±1.414 pH (Litmus Paper) 7.0 7.0±0.000 Total Phosphate (mg/L) 0.100.13-0.12±0.02 Total Suspended Solid (mg/L) 90.092.0 91.0±1.0

15. Parameters1 (mg/L)2 (mg/L)3 (mg/L)Average (mg/L) As0.1360.1250.1420.134±0.009 Ca2.0980.3160.2730.896±1.041 Cd0.1030.1120.1020.106±0.006 Cr-0.024-0.0210.015-0.020±0.022 Cu0.1260.127 0.127±0.001 Fe0.8340.7220.5620.706±0.137 Li-0.026 -0.027-0.026±0.001 Mg0.4790.4660.4580.468±0.011 Mn0.0840.0950.0700.083±0.013 Ni0.083 0.083±0.000 Pb0.0960.0840.0860.089±0.006 Zn0.1010.1130.1100.108±0.006 Heavy Metals Measurement

16.  Water Quality Index (WQI) = (0.22*SlDO) + (0.19*SIBOD) + (0.16*SICOD) + (0.15*SIAN) + (0.16*SISS) + (0.12*SipH) = 79

17. Water Quality Index (WQI)

19. 1. Secchi Disk Calculations Average Summer Secchi disk = 1.16 meters TSI = 60 - 14.41 (ln Secchi disk (meters)) TSI = 60 - (14.41) (0.148) TSI (SD)= 57.87 2. Total Phosphate Average Summer Surface Total Phosphorus = 115 ug/L TSI = 14.42 (ln Total phosphorus (ug/L)) + 4.15 TSI = (14.42) (4.74) + 4.15 TSI (P) = 72.50 Trophic State Index(TSI)

20. 3. Chlorophyll a Average Summer Chlorophyll a = 6.6 ug/L TSI = (9.81) (ln Chlorophyll a (ug/L)) + 30.6 TSI = (9.81) (1.89) + 30.6 TSI (chlorophyll a)= 49.14 Trophic State Index(TSI)

21. Chlorophyll (ug/L) Total Phosphate (ug/L) Secchi Disk (m SD) Trophic Classificatio n <30 - 40<0.95 – 2.6< 6 – 124 - >8Oligotrophic 40 - 502.6 – 7.312 – 142 – 4Mesotrophic 50 - 707.3 – 5624 – 960.5 – 2Eutrophic 70 - 100+56 - > 15596 - 384<0.25 – 0.5Hypertrophic Trophic State Index(TSI)

22. TSI (Secchi Disc) = 74.27, hypertrophic TSI (TP) = 83.46, hypertrophic TSI (Chlorophyll a) = 50.9, eutrophic TSI (Average) = 69.54, HYPERTROPHIC Water Quality Index (WQI)

23. Trophic State Index(TSI) TSI (Secchi Disc) = 57.87, eutrophic. TSI (TP) = 72.50, hypertrophic TSI (Chlorophyll a) = 49.14, eutrophic. TSI (Average) = 59.84, EUTROPHIC Water Quality Index (WQI)