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Beautiful_Leaves BG.jpg Environmental Norms -Effluents

Effluents

                  GENERAL STANDARDS* FOR DISCHARGE OF ENVIRONMENTAL POLLUTANTS 
                                                             SCHEDULE VI of the 
                       ENVIRONMENT (PROTECTION) THIRD AMENDMENT RULES, 1993
                                                               Part A- Effluents

Sr.No Parameter Standards
  Inland surface water  Public Sewers Land for irrigation Marine coastal areas
(a) (b) (c) (d)
1. Colour and odour
See 6 of Annexure - I - See 6 of Annexure-I See 6 of Annexure-I
2. Suspended Solids mg/l, Max 100 600 200 a) For process waste water-100
b) For cooling water effluent 10% above total suspended matter of influent
3. Particle size of suspended solids Shall pass 850 micron IS sieve - - a) Floatable solids, solids max. 3mm.
b) Settleable solids max 850 microns.
4. pH value 5.5 to 9.0 5.5-9.0 5.5 to 9.0 5.5 to 9.0
5. Temperature Shall not exceed 5C above the receiving water temperature - - Shall not exceed 5C above the receiving water temperature
6. Oil and grease mg/l Max. 10 20 10 20
7. Total residual chlorine mg/l Max 1.0 - - 1.0
8. Ammonical nitrogen (as N) mg/l Max 50 50 - 50
9. Total kjeldahl nitrogen (as N): mg/l Max. 100 - - 100
10. Free ammonia (as 5.0 NH3) mg/l Max. 5.0 - - 5.0
11. Biochemical oxygen demand (5 days at 20C), mg/l, Max. 30 350 100 100
12. Chemical oxygen 250 demand, mg/l, Max. 250 - - 250
13. Arsenic mg/1max (As As) 0.2 0.2 0.2 0.2
14. Mercury mg/1 Max,(As Hg) 0.01 0.01 - 0.01
15. Lead mg/1 Max (As Pb) 0.1 0.1 - 2.0
16. Cadmium mg/1 Max (As Cd) 2.0 1.0 - 2.0
17. Hexavalent Chromium (as Cr+6),mg/1 Max 0.1 2.0 - 2.0
18. Total Chromium (as Cr),mg/1 Max 2.0 2.0 - 2.0
19. Copper (as Cu),mg/1 Max 3.0 3.0 - 3.0
20. Zinc (as Zn), mg/l Max. 5.0 15 - 15
21. Selenium (as Se), mg/l Max.
0.05 0.05 - 0.05
22. Nickel (as Ni), mg/l Max. 3.0 3.0 - 5.0
23. Cyanide (as CN), mg/l Max. 0.2 2.0 0.2 0.2
24. Fluoride (as F), mg/l Max. 2.0 15 - 15
25. Dissolved Phosphates (as P) mg/l Max. 5.0 - - -
26. Sulphide (as S), mg/l Max. 2.0 - - 5.0
27. Phenolic Compounds (as C6H5OH) mg/l Max. 1.0 5.0 - 5.0
28. Radioactive materials:
 a) Alpha emitters micro cure mg/l Max
.b) Beta emmiters1[Micro curie/ml]Max.
10-710-6 10-710-6 10-810-7 10-7
10-6 
29. Bio-assay test after 96 hours in 100% effluent 90% survival of fish after 96 hours in 100% effluent 90% survival of fish after 96 hours in 100% effluent 90% survival of fish after 96 hours in 100% effluent 90% survival of fish after 96 hours in 100% effluent
30. Manganese (as Mn) 2 mg/l 2 mg/l 2 mg/l 2 mg/l
31. Iron (as Fe) 3 mg/l 3 mg/l 3 mg/l 3 mg/l
32. Vanadium (as V) 0.2 mg/l - - 0.2 mg/l
33. Nitrate Nitrogen 10 mg/l - - 10 mg/l
34. Pesticides: 
(microgm per lit.max.

a) Benzene hexa chloride
b) Carborly
c) DDT
d) Endosulfan
e) Diamethoate
f) Penitrothion
g) Malathion
h) Phorate
i) Methyl 
Parathion
j) Phenthoate
k) Pyrethrums
l) Copper Oxychloride 
m) Copper Sulphate
n) Ziram
o) Sulphur
p) Paraouat
q) Proponil
r) Nitrogen
10
10
10
10
450
10
10
10
10
10
10
9600
50
1000
30
2300
7300
780
---- 10
10
10
10
450
10
10
10
10
10
10
9600
50
1000
30
2300
7300
780
10
10
10
10
450
10
10
10
10
10
10
9600
50
1000
30
2300
7300
780

Table 1
Note
* These standards shall be applicable for industries, operations or processes other than those industries, operations or process for which standards have seen specified in Schedule - I.

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