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Following the completion of the lining project and reinstatement of the main, two additional water samples were collected from the sample locations (Table 5). Both post-renewal water samples were also found to be non-detected. These results are comparable with the water sampling from the other demonstration site that used the pipe bursting method (Matthews et al. 2015).

Table 5

Post-renewal water sample asbestos results summary

Sample no.Total no. of asbestos structure detectedAnalytical sensitivity (million structures/liter)Total asbestos concentration (million structure/liter)
ND 0.03 BAS 
ND 0.03 BAS 
Sample no.Total no. of asbestos structure detectedAnalytical sensitivity (million structures/liter)Total asbestos concentration (million structure/liter)
ND 0.03 BAS 
ND 0.03 BAS 

ND, none detected; BAS, below analytical sensitivity.

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