Water Quality Standards
Coastal Water Quality Standards
| Classification of Coastal Waters | Coastal Water Quality Standards | Areas Classification for the West Coast of Phuket Island |

Classification of Coastal Waters
ClassDescription
1 Preservation Areas
2 ุCoral Conservation
3 Marine Conservation
4 Water for Coastal Farms
5 Water Contact Sports
6 Water Proximity Activities
7 Industrial Areas

Additional Data :
  • Coastal Landuse Type(in Thai) from Marine Environment Division
  • Sea For Use (in Thai)


    • Coastal Water Quality Standards
    ParameterUnitClass
    1    		Class
    2    		Class
    3    		Class
    4    		Class
    5    		Class
    6    		Class
    7    		Methods for Examination
    1. Floatable Solids*-nNOBNOBNOBNOBNOBNOBVisual Testing
    2. Floatable Oil & Grease-nNVNVNVNVNVNVVisual Testing
    3. Odour-n--NOBNOBNOBNOBcolor-Visual Testing odor-Organolaptic
    4. TemperatureํCn>>33.0>>33.0>>33.0TD>--±3.0 Thermometer
    5. pH-n7.5 - 8.9 7.0 - 8.57.0 - 8.5--**Electrometric pH Meter
    6. Salinitypptn29- 35 D>>10%D>>10%--** Refractomete
    7. TransparencymnD>>10% D>>10%D>>10%D>>10%-**White Secchi Disc , Diameter 30 cm.
    8. Dissolved Oxygen (DO)mg/ln<<4<<4<<4--**Azide Modification
    9. Total Coliform BacteriaMPN/100mln-->>1,000>>1,000-- Multiple Tube Fermentation Technique
    10. Fecal Coliform BacteriaMPN/100 mln--n--- Multiple Tube Fermentation Technique
    11. NO3-Nmg/lnnnn--** Cadmium Reduction
    12. PO4-Pmg/lnnnn--** Ascorbic Acid
    13. Mercury (Hg)mg/ln>>0.0001>>0.0001>>0.0001-->>0.0001 Atomic Absorption Cold
    14. Cadmium (Cd)mg/ln>>0.005>>0.005>>0.005-->>0.005 Atomic Absorption Cold Vapour Technique
    15. Chromium (Cr)mg/ln>>0.1>>0.1>>0.1--**Atomic Absorption Spectrophotrometry (Flameless Technique)
    16. Chromium hexavalent mg/ln>>0.05>>0.05>>0.05-->>0.1Atomic Absorption Spectrophotrometry (Flameless Technique)
    17. Lead (Pb)mg/ln>>0.05>>0.05>>0.05--**Atomic Absorption Spectrophotrometry (Flameless Technique)
    18. Copper (Cu)mg/ln>>0.05>>0.05>>0.05--**Atomic Absorption Spectrophotrometry (Flame Technique)
    19. Manganese (Mn)mg/ln>>0.1>>0.1>>0.1--**Atomic Absorption Spectrophotrometry (Flame Technique)
    20. Zinc (Zn)mg/ln>>0.1>>0.1>>0.1--**Atomic Absorption Spectrophotrometry (Flame Technique)
    21. Iron (Fe)mg/ln>>0.3>>0.3>>0.3--**Atomic Absorption Spectrophotrometry (Flame Technique)
    22. Fluoride (F)mg/ln>>1.5>>1.5>>1.5--**Colorimetric SPANDS with Distillation
    23. Residue Cl2mg/ln>>0.01>>0.01>>0.01--**Iodometric Method
    24. Phenolsmg/ln>>0.03>>0.03>>0.03--**Distillation, 4-Amino antipyrene
    25. NH3-Nmg/ln>>0.4>>0.4>>0.4--**Distillation Nesslerization
    26. Sulfidemg/ln>>0.01>>0.01>>0.01--**Colorimetric Methylene Bule
    27. Cyanidemg/ln>>0.01>>0.01>>0.01--**Pyridine-Barbituric Acid
    28. PCBmg/lnnnn--** Gas Chromatography
    29. Total Organochlorine Pesticidesmg/ln>>0.05>>0.05>>0.05--**Gas Chromatography
    30. Radioactivity
    - Alpha Gross
    - Beta Gross***    		Becquerel/l
    		n

    >>0.1

    >>1.0

    >>0.1

    >>1.0

    >>0.1

    >>1.0

    		--**Low Background Propotional Counter

    Remarks: NOB = not objectionable , NV = not visible
    n = natural condition, * = natural floatable solids not included,
    ** = may be established as necessary , *** =natural potassium 40 not included
    >> = not more than , << = not less than , D= change from natural condition , - = not specified
    Base on: Standard Methods for the Examination of Water and Wastewater recommended by APHA : American Public Health Association, AWWA : American Water Works Association and WPCF : Water Pollution Control Federation
    Source: Notification of the National Environmental Board No.7, dated January 20, B.E.2537(1994), issued under the Enhancement and Conservation of National Environmental Quality Act B.E.2535(1992), published in the Royal Government Gazette Vol. 111, Part 16, dated February B.E.2537 (1994).


    Areas Classification for the West Coast of Phuket Island
    ClassAreas
    Class 1
    (Natural Preservation Areas)
    • Naiyang Beach National Park
      (Naitorn, Naiyang, Maikao and Saikaew Beach) The total area is as specified in the Notification of the Forestry Department, B.E. 2524 (1981).
    Class 2
    (Coral Conservation)
    • Kata Noi Bay (southern part)
    • Karon Bay (southern part), around Pu Island and Kata Bay (northern part)
    • Maingarng Peninsular and Kata Noi Bay
    • Patong Bay (southern and northern)
    • Kamala Bay (southern part)


      • The areas for coral conservation of Patong Bay (both northern and southern parts) and Maingarng Peninsula are as specified in the Provincial Notification (Phuket: Notification on Area for Marine Life Conservation, 15 May B.E. 2532). The areas of Kata Bay (northern part), Karon Bay (southern part), the area around Pu Island and Kamala Bay (southern part), are as proposed by the Phuket Biological and Marine Fishery Institute on 8 February B.E. 2534 (1991).
    Class 5
    (Water Contact Sports)
    • Nai Harn Beach
    • Kata Noi & Kata Yai Beach
    • Karon Bay
    • Patong Beach
    • Surin Beach
    Class 6
    (Water Proximity Sports)
    • Kamala Bay
    Class 7
    (Industrial Area)
    • Bangtao Bay

    Remark:Approved by the Environmental Committee on Water, dated November 14, B.E. 2534 (1992).