Bromine in drinking water

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reply to your request for information. We endeavour to provide a full
response before this timescale.

Regards

FOI Team
<http://www.scottishwater.co.uk/portal/pa...>
<http://www.scottishwater.co.uk/portal/pa...>

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Scottish Water
www.scottishwater.co.uk
www.scottishwatersolutions.co.uk
[email address]

Dear Dr Dryden,

Thank you for your request for information that I received yesterday.

In relation to your points about cryptosporidium in Edinburgh, I would
be grateful if you could confirm:

A) The time period you are looking for this information, and

B) Do you require the information for Edinburgh City or Edinburgh
including the Lothian region.

Should you require any further information, please do not hesitate to
contact me.

Yours sincerely,

Richard Duncan
Support Administrator
Complaint Management Unit
Scottish Water
0131 445 6532

show quoted sections

Under the Freedom of Information Act, we have up to 20 working days to
reply to your request for information. We endeavour to provide a full
response before this timescale.

Regards

FOI Team
<http://www.scottishwater.co.uk/portal/pa...>
<http://www.scottishwater.co.uk/portal/pa...>

Privileged/Confidential information may be contained in this Email and any files transmitted with it. If you are not the intended recipient you should not retain, copy or use this Email for any purpose or disclose all or part of its contents to any person. If you have received this Email in error please notify the postmaster and sender immediately and delete this Email from your system.

Opinions, conclusions and other information in this message that do not relate to the official business of Scottish Water ("SW"), Scottish Water Solutions Ltd ("SWS") or Scottish Water Solutions 2 Ltd ("SWS2") shall be understood as neither given nor endorsed by them. The contents of Emails sent and received by SW, SWS and SWS2 are monitored.

WARNING: Although SW, SWS and SWS2 have taken reasonable precautions to ensure no viruses or other malicious software are present, SW, SWS and SWS2 cannot accept responsibility for any loss or damage arising from the use of this Email or attachments however caused. The recipient should therefore check this Email and any attachments for the presence of viruses or other malicious software.

Scottish Water
www.scottishwater.co.uk
www.scottishwatersolutions.co.uk
[email address]

Dear Dr Dryden,

Thank you for your e-mail of 18 February.

My previous e-mail asked if you could confirm the timescale you are
looking for the Cryptosporidium information, not the Bromine.

I can confirm that no bromine is added to the water supply at present
and there are plans to add this in the future.

I would be grateful if you could provide me with the above information
and I will arrange for this to be investigated.

Yours sincerely,

Richard Duncan
Support Administrator
Complaint Management Unit
Scottish Water
0131 445 6532

show quoted sections

Under the Freedom of Information Act, we have up to 20 working days to
reply to your request for information. We endeavour to provide a full
response before this timescale.

Regards

FOI Team
<http://www.scottishwater.co.uk/portal/pa...>
<http://www.scottishwater.co.uk/portal/pa...>

Privileged/Confidential information may be contained in this Email and any files transmitted with it. If you are not the intended recipient you should not retain, copy or use this Email for any purpose or disclose all or part of its contents to any person. If you have received this Email in error please notify the postmaster and sender immediately and delete this Email from your system.

Opinions, conclusions and other information in this message that do not relate to the official business of Scottish Water ("SW"), Scottish Water Solutions Ltd ("SWS") or Scottish Water Solutions 2 Ltd ("SWS2") shall be understood as neither given nor endorsed by them. The contents of Emails sent and received by SW, SWS and SWS2 are monitored.

WARNING: Although SW, SWS and SWS2 have taken reasonable precautions to ensure no viruses or other malicious software are present, SW, SWS and SWS2 cannot accept responsibility for any loss or damage arising from the use of this Email or attachments however caused. The recipient should therefore check this Email and any attachments for the presence of viruses or other malicious software.

Scottish Water
www.scottishwater.co.uk
www.scottishwatersolutions.co.uk
[email address]

Dear Dr Dryden,

Firstly, please accept my apologies for the response regarding the
bromine. It should have read that there are NO plans to add bromine to
the water supply in the future.

Regarding the Cryptosporidium part of your request. I should be able to
provide you with a response within the 20 working days. I shall contact
you again by 17 March at the latest.

Regards

Richard Duncan
Support Administrator
Complaint Management Unit
Scottish Water
0131 445 6532

show quoted sections

Under the Freedom of Information Act, we have up to 20 working days to
reply to your request for information. We endeavour to provide a full
response before this timescale.

Regards

FOI Team
<http://www.scottishwater.co.uk/portal/pa...>
<http://www.scottishwater.co.uk/portal/pa...>

Privileged/Confidential information may be contained in this Email and any files transmitted with it. If you are not the intended recipient you should not retain, copy or use this Email for any purpose or disclose all or part of its contents to any person. If you have received this Email in error please notify the postmaster and sender immediately and delete this Email from your system.

Opinions, conclusions and other information in this message that do not relate to the official business of Scottish Water ("SW"), Scottish Water Solutions Ltd ("SWS") or Scottish Water Solutions 2 Ltd ("SWS2") shall be understood as neither given nor endorsed by them. The contents of Emails sent and received by SW, SWS and SWS2 are monitored.

WARNING: Although SW, SWS and SWS2 have taken reasonable precautions to ensure no viruses or other malicious software are present, SW, SWS and SWS2 cannot accept responsibility for any loss or damage arising from the use of this Email or attachments however caused. The recipient should therefore check this Email and any attachments for the presence of viruses or other malicious software.

Scottish Water
www.scottishwater.co.uk
www.scottishwatersolutions.co.uk
[email address]

Dear Dr Dryden,

Thank you for your request for information and I apologise for the delay
in providing you with a full response.

The data is detailed in the spreadsheet attached.

Column A (Scottish Water Region) illustrates the region referred to.

Column B (Asset Description) details the relevant assets.

Column C (Sample Point Description) describes where samples were taken.
It should be noted that where the term 'raw water' is used, this refers
to oocyst concentrations before the filters. Descriptions which include
the term 'potable water' highlight oocyst concentrations after the
filters.

Column D details Postcodes where available.

Column E lists Sample Dates.

Column F records Sample Reference Numbers.

Column G provides a Cryptosporidium count - the number of oocysts per 10
Litres of sample water.

Column H details NTU where recorded.

You can appeal if you are dissatisfied with this decision. You must
make your appeal within forty days of receiving this e-mail. Please see
the attachment included with this e-mail for details of our appeals
procedure.

Yours sincerely,

Richard Duncan
Support Administrator
Complaint Management Unit
Scottish Water

show quoted sections

Under the Freedom of Information Act, we have up to 20 working days to
reply to your request for information. We endeavour to provide a full
response before this timescale.

Regards

FOI Team
<http://www.scottishwater.co.uk/portal/pa...>
<http://www.scottishwater.co.uk/portal/pa...>

Privileged/Confidential information may be contained in this Email and any files transmitted with it. If you are not the intended recipient you should not retain, copy or use this Email for any purpose or disclose all or part of its contents to any person. If you have received this Email in error please notify the postmaster and sender immediately and delete this Email from your system.

Opinions, conclusions and other information in this message that do not relate to the official business of Scottish Water ("SW"), Scottish Water Solutions Ltd ("SWS") or Scottish Water Solutions 2 Ltd ("SWS2") shall be understood as neither given nor endorsed by them. The contents of Emails sent and received by SW, SWS and SWS2 are monitored.

WARNING: Although SW, SWS and SWS2 have taken reasonable precautions to ensure no viruses or other malicious software are present, SW, SWS and SWS2 cannot accept responsibility for any loss or damage arising from the use of this Email or attachments however caused. The recipient should therefore check this Email and any attachments for the presence of viruses or other malicious software.

Scottish Water
www.scottishwater.co.uk
www.scottishwatersolutions.co.uk
[email address]

Under the Freedom of Information Act, we have up to 20 working days to
reply to your request for information. We endeavour to provide a full
response before this timescale.

Regards

FOI Team
<http://www.scottishwater.co.uk/portal/pa...>
<http://www.scottishwater.co.uk/portal/pa...>

Privileged/Confidential information may be contained in this Email and any files transmitted with it. If you are not the intended recipient you should not retain, copy or use this Email for any purpose or disclose all or part of its contents to any person. If you have received this Email in error please notify the postmaster and sender immediately and delete this Email from your system.

Opinions, conclusions and other information in this message that do not relate to the official business of Scottish Water ("SW"), Scottish Water Solutions Ltd ("SWS") or Scottish Water Solutions 2 Ltd ("SWS2") shall be understood as neither given nor endorsed by them. The contents of Emails sent and received by SW, SWS and SWS2 are monitored.

WARNING: Although SW, SWS and SWS2 have taken reasonable precautions to ensure no viruses or other malicious software are present, SW, SWS and SWS2 cannot accept responsibility for any loss or damage arising from the use of this Email or attachments however caused. The recipient should therefore check this Email and any attachments for the presence of viruses or other malicious software.

Scottish Water
www.scottishwater.co.uk
www.scottishwatersolutions.co.uk
[email address]

Dear Dr Dryden,

Thank you for your e-mail below. I can confirm that we are currently
investigating your previous review for a request which I received on 22
March.

You will receive a response by 19 April at the latest.

Yours sincerely,

Richard Duncan
Support Administrator
Complaint Management Unit
Scottish Water

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Dear Dr Dryden,

Thank you for your e-mail that I received on 22 March.

I can confirm that we have already submitted our laboratory analytical
data for WTW turbidties and crypto oocyst levels in our previous
request.

With regard to on-line turbidity instruments, it is not possible to
extract this data from all of our systems. What I can say is that we
have on-line turbidity monitors on most of our raw waters (certainly on
all of our raw waters where rapid changes in quality can impact on the
operation of the works), on individual rapid gravity filters within
water treatment works and on final waters. These instruments are linked
to our telemetry systems and alarm out if thresholds are breached.
Following an alarm we react in accordance with our internal procedures.

Alarm set points for these turbidity monitors are site specific and are
set according to site data for individual filters, combined filtered
water and final water.

We do this by:-

1 Take a representative range of turbidity readings.
2 Calculate the average of the data.
3 Calculate the Standard Deviation
4 Add two standard deviations to the average

This figure is called the significant turbidity deviation value (STDV)
and is used for turbidity alarm set points.

If we breach the alarm set point, in addition to checking the treatment
process, we also install a cryptosporidium sample filter on the WTW
final water.

I trust this information answers the further points you have raised and
should you require any further details, please contact me.

You can appeal if you are dissatisfied with this decision. You must
make your appeal within forty days of receiving this e-mail. Please see
the attachment included with this e-mail for details of our appeals
procedure.

Yours sincerely,

FOI Team
Complaint Management Unit
Scottish Water

show quoted sections

Under the Freedom of Information Act, we have up to 20 working days to
reply to your request for information. We endeavour to provide a full
response before this timescale.

Regards

FOI Team
<http://www.scottishwater.co.uk/portal/pa...>
<http://www.scottishwater.co.uk/portal/pa...>

Privileged/Confidential information may be contained in this Email and any files transmitted with it. If you are not the intended recipient you should not retain, copy or use this Email for any purpose or disclose all or part of its contents to any person. If you have received this Email in error please notify the postmaster and sender immediately and delete this Email from your system.

Opinions, conclusions and other information in this message that do not relate to the official business of Scottish Water ("SW"), Scottish Water Solutions Ltd ("SWS") or Scottish Water Solutions 2 Ltd ("SWS2") shall be understood as neither given nor endorsed by them. The contents of Emails sent and received by SW, SWS and SWS2 are monitored.

WARNING: Although SW, SWS and SWS2 have taken reasonable precautions to ensure no viruses or other malicious software are present, SW, SWS and SWS2 cannot accept responsibility for any loss or damage arising from the use of this Email or attachments however caused. The recipient should therefore check this Email and any attachments for the presence of viruses or other malicious software.

Scottish Water
www.scottishwater.co.uk
www.scottishwatersolutions.co.uk
[email address]

Dear Dr Dryden,

Thank you for your e-mail of 21 April. Please find the answers below
the questions in your original e-mail.

Yours sincerely,

Richard Duncan
Support Administrator
Complaint Management Unit
Scottish Water

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