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Archive for September, 2011

The results of the second round of testing performed by Mr. Paul Klopping have been provided by Catalyst.  For your reference, here is George Orchiston’s letter of June 25, 2011 to the Mayor and Councillors which dealt with permissible fecal coliform levels and the necessity for disinfection.

Here is some more information from George Orchiston concerning the results of the second round of testing:

The Report clearly describes an improved testing protocol compared to the tests done in May and do demonstrate that co-treatment at the mill’s facilities will do a very good job regarding removal of BOD5 (biological oxygen demand) and TSS (total suspended solids).

I would draw your attention to Reactor 2 results in Scenarios #1, #2 and #3 which reflect what the actual co-treatment results would look like should it proceed.

The high test results for fecal coliform however are going to be problematic for proponents of co-treatment.

Table #1 at page 4 clearly compares the characteristics of the City’s wastewater to that of the Mill’s and one can see that most of the fecal coliform is generated by the City. Table #1 shows that the tested prescreened City Primary Effluent was 10 million cfu/100ml. (You should be aware that the highest fecal coliform reading, from the City’s 2010 records, was on Oct. 15,   20 million mpn/100ml ).

Reactor 2 in Scenario #1 records a fecal coliform result of 50,000 cfu/100ml. and Reactor 2 in Scenario #3 records a fecal coliform result of 250,000 cfu/100ml. Now if one divides each of these two results by 90 ( the dilution factor provide by the Mills effluent diffuser in the ocean), the fecal coliform count at the Initial Dilution Zone (IDZ) would be 555 and 2778 cfu/100ml respectively.

Should Municipal Sewage Regulation apply rather than the Company’s permit, the maximum permissible level for recreational waters is 200 cfu/100ml and disinfection of the total mill effluent flow to the ocean would be required. Of course the City could be forced by the Mill to disinfect the City wastewater before it is sent to the mill. With reference to Dayton and Knight this could cost the City upwards of $750,000 – $800,000.

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