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Water sample Test for contruction suitability- IS:456: Valsaravakkam, Chennai

Water quality results

  • pH -6.53,
  • Organic Salts - 328
  • Inorganic - 2620
  • Sulphates - 28
  • Chlorides - 1288
  • Suspended Matter- 62
  • Amount of 0,02N NaoH - 1.0
  • Amount of 0.02 H2SO4 - 45.8

Location - Valsaravakkam, Chennai

From the comments of the report, it did not meet the standards for the high Chlorides and H2SO4.

Would like to hear your advice on the solution for this?

Is there any treatment and what needs to be done if we have to use this for domestic consumption?

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Comments

1. Suitability of water for construction

Dear red007,

The water for which you have given partial test results appears to be waste water from a chemichal/water testing laboratory.

If you are thinking of using it for domestic consumption(this means for drinking too),it is not suitable and will be expensive and difficult to treat.A complete mineral analysis report should be done with BIS-10500 as a reference in the test report.If I could see such a report I can advise you on the feasibility of treating this water.

Regards

S.S.Ranganathan

S.S.Ranganathan

2. Bore water from Valsaravakkam-Chennai

Dear Sir, Thanks for your response. The water is taken from the borewell we recently dug at Valsaravakkam, Chennai. I am not looking at drinking this water but just to use them for toilet and cleaning purposes only. If so what should I do. Thanks again.

3. Dear Red, The comments are as

Dear Red,


The comments are as follows:


Water for mixing and curing ( of concrete ) shall be clean and free from injurious amounts of oils, acids, alkalies, salts, sugar, organic materials or other substances that may be deleterious to concrete or steel.
• The pH of water shall be not less than 6
• To neutralize 100ml sample of water, it should not require more than 5ml of 0.02 normal NaOH.
• To neutralize 100ml 0f water sample of water, it should not require more than 25ml of 0.02 normal H2SO4.
• Permissible limit of organic 200mg/l
• Perm. limit of Inorganic 3000mg/l
• Perm. limit of Sulphates  400mg/l
• Perm limit of Chlorides   2000mg/l
• Perm limit of suspended matter 2000mg/l 


Yes, Organic salts are more than permissible limit. Alkalinity of the water is on higher side. The water requires higher sulphuric acid for neutralization. The water needs to be treated for removal of organic pollutants. The process depends on the quantity of water required for construction daily. But I shall advise you to control the pollution of the water body instead of treatment, if possible.


To consider the water for treatment so as to use for drinking, you have to analyze water samples to know the parameters as mentioned in BIS 10500. In addition BOD, COD and Feacal coliform counts etc must also be analyzed.
In general, the water source (as per analyzed result) is not suitable for drinking water supply.


Regards


Dr. Arunabha Majumder
Chairman, Indian Water Works Association (IWWA) and Ex-Director-Professor & Head, Department of Sanitary Engineering, AIIH&PH, Kolkata and  Guest Lecturer, School of Water Resources Engg., J.U.

4. Suitability of Water

Dear,


The test report given by you is related to the testing of water for construction purpose and as per IS456 this water is not fit for construction purposes and will attack concrete.Further tis water is also not fit for drinking purpose, however you can use this water in toilet and cleaning purposes.


regards,

Amit Kr. Singh,
Govt. of Haryana,
Public Health Engg. Department,
Water Testing Lab,Karnal-132001(haryana)
09416204204,09729248248,
ak_ranaji3@yahoo.co.in

5. Dear Red, Standards for water

Dear Red,

Standards for water quality required for construction purposes are given below:

S. No Parameters Permissible limits as per BIS 456 2000

1. pH pH of water shall not be less than 6.0
2. Organic solids 200 mg/l
3. Inorganic solids 3000 mg/l
4. Sulphate 400 mg/l
5. Chloride 2000 mg/l For plain concrete work 500 mg/l For reinforced concrete work
6. Suspended matter 2000 mg/l
7. Acidity To neutralize 100 ml sample of water, using phenolphthalein as an indicator, it should not require more than 5 ml of 0.02 normal NaOH (50 mg/l as CaCO3 equivalent)
8. Alkalinity to neutralize 100 ml sample of water, using mixed indicator, it should not require more than 25 ml of 0.02 normal H2SO4. (250 mg/l as CaCO3 equivalent (ml)

Chennai Metropolitan Water Supply and Sewerage Board, in its web site, reports the following for water quality for Construction purpose

To neutralise 200 ml of sample of water, using methyl orange as an indicator, it should not require more than 10 ml of 0.1 (N/10) Normal Hydro chloric acid.

This is equivalent to 50 ml of 0.02 N H2SO4.

Leela Iyengar
Advisor  
Arghyam
Bangalore

6. RO System

Sir, The water turns yellow after a while and then those partlicles settle down in a day or two with clear water on the top. If we use this water for toilets and cleaning will it leave yellow strains on the tiles and flooring if used for cleaning. If RO system can be used could you kindly suggest an economical and yet effective one to use for this water to be free of strains. I do not plan to use this for drinking or cooking. Thanks again.

7. RO system to treat your water

Dear red007,

Theoretically an RO system can be used to treat the water in question,but, no manufacturer of RO systems will give you a proposal for such a system unless and until you get a complete mineral analsysis of the sample done by a certified lab with reference to BIS-10500.

If you get such a test done and mail me the test report,I can advise you on whether an RO system can handle this water and what special pre-treatment would be required before an RO.

Regards

S.S.Ranganathan

S.S.Ranganathan

8. Dear Red, Standards for water

Dear Red,
 
Standards for water quality required for construction purposes are given below:
 
S. No Parameters Permissible limits as per BIS 456 2000
 
pH pH of water shall not be less than 6.0
Organic solids 200 mg/l
Inorganic solids 3000 mg/l
Sulphate 400 mg/l
Chloride 2000 mg/l For plain concrete work 500 mg/l For reinforced concrete work
Suspended matter 2000 mg/l
Acidity To neutralize 100 ml sample of water, using phenolphthalein as an indicator, it should not require more than 5 ml of 0.02 normal NaOH (50 mg/l as CaCO3 equivalent)
Alkalinity to neutralize 100 ml sample of water, using mixed indicator, it should not require more than 25 ml of 0.02 normal H2SO4. (250 mg/l as CaCO3 equivalent (ml)
Chennai Metropolitan Water Supply and Sewerage Board, in its web site, reports the following for water quality for Construction purpose
 
To neutralise 200 ml of sample of water, using methyl orange as an indicator, it should not require more than 10 ml of 0.1 (N/10) Normal Hydro chloric acid.
 
This is equivalent to 50 ml of 0.02 N H2SO4.
 
Leela Iyengar
Advisor             
Arghyam
Bangalore

9. Suitability of water for construction

Dear sir.

Can you please send me a list of parameters with lower and upper limits regarding water that can be used for construction.

Thank you,

Ankit H. Parekh (Gujarat, Surat)

10. Is the water sample suitable for construction purpose?

Below is the result of the water analysis done, would like to know if the water is suitable for construction purposes?

  • colour :- odourless
  • Turbidity :- 1.0
  • Ph at 27.6 degress is 6.85
  • Electrical conductivity 25 degres:
  • micro Mhos/cm: 4930,
  • Tds: 3254 mg/l
  • Alkalinity as caco2 phenopthalein :- nill
  • Total alkalinty :- 480
  • Total hardness as caco3 :- 980
  • calcium hardness :- 360
  • Nitrites as N :- nill
  • Nitrate as N --- ammonical nitrogen :- Nill
  • sulphate as so4 :- ++
  • chloride as cl :- 1040
  • fluoride as F :- 0.7
  • Iron as Fe :- nill

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