Analytical Results, Findings, and Recommendations
of the 1995 OMAFRA Sewage Biosolids Field Survey

Table 9. Summary of Number of Transect Samples and Analysis by Individual Parameter
Parameter
Number of
Trunsects
MPL1
(µ/g)

Maximum Level
Tested2
T4
NT5
W6
T
NT
W
pH
108
108
36
6
5.1
5.4
5.3
Phosphorus
108
108
36
60
111
318
24
As
108
108
36
14
7
7
9
Cd
108
108
36
1.6
0.9
0.9
1
Co
108
108
36
20
10
13
13
Cr
108
108
36
120
90
24
15
Cu
108
108
36
100
37
38
65
Hg
108
108
36
0.5
0.22
0.06
0.09
Mo
108
108
36
4
<2.5
<2.5
<2.5
Ni
108
108
36
32
85
31
16
Pb
108
108
36
60
45
39
28

Se
108
108
36
1.6
2
1.7
2
Zn
108
108
36
220
227
246
130

 

Table 9 continued
Parameter
No. of Transects with Level Higher than MPL
MDL3
(µ/g)

No. of Transects with Level Lower than MDL
T
NT
W
T
NT
W
pH
8
3
11
 
 
 
 
Phosphorus
7
5
0
 
 
 
 
As
0
0
0
0.5
0
0
0
Cd
0
0
0
0.5
89
92
29
Co
0
0
0
2.5
8
9
5
Cr
0
0
0
10
10
27
7
Cu
0
0
0
10
11
21
15
Hg
0
0
0
0.01
0
0
0
Mo
0
0
0
2.5
108
108
36
Ni
1
0
0
10
39
51
17
Pb
0
0
0
10
26
38
6

Se
1
1
3
0.25
0
0
0
Zn
1
2
0
25
1
6
0

1 MPL Maximum Permissible Level in sludged soils as reported in the current guidelines.
2 Permissible level for pH is 6.0. pH levels below 6.0 were considered above maximum.
3 MDL - Method Detection Limit
4 T = Treated
5 NT = Non-treated
6 W = Woodlot

| Table of Contents |

 


For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: M. Janiec - Soil and Crop Advisor/OMAFRA; B. Lovell - Resource Management Specialist/OMAFRA; M. Payne - Soil and Crop Advisor/OMAFRA; J. Scheihauf - Manager Resources and Regulations Branch/OMAFRA; L. Schut - Pedologist /OMAFRA; D. Aspinall - Resource Management Specialist/OMAFRA; S. Clegg - Manager Agricultural and Food Laboratory Services/OMAFRA; L. Evans - Professor Land Resource Science/University of Guelph
Creation Date: December 1995
Last Reviewed: 02 April 2004