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Environment Parameters Half Yearly Environment Compliance Status
 
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ENVIRONMENT TABLE 1
NUMALIGARH REFINERY LIMITED
 
QUARTERLY PERFORMANCE WITH RESPECT TO ENVIRONMENTAL ASPECTS
DURING THE QUARTER APRIL-JUNE' 2010
                 
  1. Liquid Effluent            
  1.1 Quantity              
                 
        April'10 May'10 June'10 Cummulative Cumm. for the year
              April-June'10  
Quantity of Effluent Discharged, M3   0 0 0 0 0
                 
Effluent Discharged, M3/1000 MT of Crude Processed 0 0 0 0 0
                 
  1. Liquid Effluent            
  1.2 Quality              
                 
  Liquid Effluent Pollutant Levels          
Sl.No.     CONC. in mg/lit. CPCB Actual CPCB STD.
  PARAMETERS NO. OF       STD. kg/1000 MT of crude
  OBS. MAX. MIN. AVG. (mg/lit) processed
Sl no. 1-8 analysed once in a day.
1 pH 91 8.5 6.0 7.2 6-8.5 -- --
2 OIL & GREASE 91 <2.0 <2.0 <2 5.0
1.8
2.0
3 BOD3 91 10 6 6.6 15.0 5.8 6.0
4 COD 91 73 48 54.2 125.0 47.5 50
5 SS 91 18.4 7.0 8.8 20.0 7.7 8.0
6 Phenol 91 0.30 0.12 0.14 0.35 0.12 0.14
7 Sulphides 91 <0.1 <0.1 <0.1 0.5 0.01 0.2
8 CN 91 <0.002 <0.002 <0.002 0.2 0.00 0.08
Sl no. 9-21 analysed once in a month.
9 Ammonia as N 3 7.9 6.5 6.7 15.0 5.9 6
10 TKN 3 17.5 11.8 15.6 40.0 13.7 16
11 P 3 0.40 0.08 0.2 3.0 0.21
1.2
12 Cr (Hexavalent) 3 0.0 Nil 0.0 0.1 0.00 0.04
13 Cr (Total) 3 Nil Nil Nil 2.0 0.00 0.8
14 Pb 3 0.14 0.01 0.05 0.1 0.04 0.04
15 Hg 3 Nil Nil Nil 0.01 0.00 0.004
16 Zn 3 0.22 0.09 0.17 5.0 0.15 2
17 Ni 3 0.17 0.01 0.11 1.0 0.10 0.4
18 Cu 3 0.07 0.05 0.06 1.0 0.05 0.4
19 V 3 0.08 Nil 0.04 0.2 0.04 0.8
20 Benzene 3 0.08 0.02 0.03 0.1 0.03 0.04
21 Benzo (a)- Pyrene 3 0.04 0.02 0.03 0.2 0.03 0.08
* Limiting concentration of effluent is as per MOEF new modification on standard vise GSR-186 (E) dated 18th March'08.
 
ENVIRONMENT TABLE 2
NUMALIGARH REFINERY LIMITED
QUARTERLY PERFORMANCE WITH RESPECT TO ENVIRONMENTAL ASPECTS
DURING THE QUARTER APRIL-JUNE' 2010
             
Ambient Air Quality          
        (In Microgram Per Cubic Meter)
             
Station Parameter Standard Observations
        Maximum Minimum Average
REFINERY SPM 150 64.2 44.8 53.9
SO2 30 4.1 0.9 1.1
NOX 30 6.1 2.1 3.8
CO 1000 250.0 10.0 68.8
ECO-PARK IN SPM 150 62.2 41.8 51.5
SO2 30 3.8 0 1.0
NOX 30 4.7 0.6 2.9
CO 1000 BDL BDL BDL
RAW WATER SPM 150 62 39.8 51.1
SO2 30 BDL BDL BDL
NOX 30 4.6 0.5 2.1
CO 1000 BDL BDL BDL
NH-39 BYPASS SPM 150 65.8 44.4 53.6
SO2 30 5.5 BDL 1.3
NOX 30 7.7 1.8 3.3
CO 1000 250 20 160.0
KAZIRANGA WILDLIFE SANCTUARY SPM 150 67.2 38.0 52.4
SO2 30 BDL BDL BDL
NOX 30 5.3 BDL 2.1
CO 1000 BDL BDL BDL
Standards are as per given in Consent of Pollution Control Board, Assam.    

 

 
 
 
 
 
 
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