Nid ydym yn gwybod a yw'r ymateb mwyaf diweddar i'r cais hwn yn cynnwys gwybodaeth neuai peidio - os chi ywCarin Blanchet mewngofnodwch a gadael i bawb wybod.

Chemicals added to domestic water supply

Carin Blanchet made this Rhyddid Gwybodaeth request to Scottish Water

This request has been closed to new correspondence from the public body. Contact us if you think it ought be re-opened.

We're waiting for Carin Blanchet to read a recent response and update the status.

Dear Scottish Water,

I would be grateful for a complete list of chemicals that are added to the domestic water supply that services Beannachar Ltd, AB12 5YL

Please also indicate the function of each chemical and the amount added, toxicity of each substance, public safety levels, and actual levels remaining in supply after processing.

Yours faithfully,

Carin Blanchet

FOI, Scottish Water

Dear Ms Blanchet,

 

Freedom of Information request - Chemicals added to domestic water supply

 

Thank you for your e-mail of 8 May 2018 that I have logged under the above
reference number.

 

We have 20 working days to reply to your request and you are due a
response on or before the 7 June 2018.

 

We will endeavour to get a response to you as soon as we can.

 

If you have any queries regarding your FOI request please feel free to
contact me, quoting the above reference number, and I will be happy to
assist.

 

Yours faithfully

 

Margaret Hopkins

FOI Analyst

Customer Experience Reporting
Buchanan Gate Business Park
Cumbernauld Road | Glasgow | G33 6FB

[mobile number]

[1][email address]

 

Scottish Water - Trusted to Serve Scotland

 

 

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 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
Horizons Ltd ("SWH"),Scottish Water International Ltd ("SWI") 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, SWH, SWI
and SWS2 are monitored.

WARNING: Although SW, SWH, SWI and SWS2 have taken reasonable precautions
to ensure no viruses or other malicious software are present, SW, SWH, SWI
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

[2]www.scottishwater.co.uk

References

Visible links
1. mailto:[email address]
2. http://www.scottishwater.co.uk/

FOI, Scottish Water

1 Atodiad

Dear Ms Blanchet,

 

Freedom of Information request - Chemicals added to domestic water supply

 

Thank you for your request for information which we processed under the
Environmental Information (Scotland) Regulations 2004 (EIRS) under the
exemption contained in section 39(2) of the Freedom of Information
(Scotland) Act 2002.

 

Your request for information was for the following:

 

“I would be grateful for a complete list of chemicals that are added to
the domestic water supply that services Beannachar Ltd,  AB12 5YL.

Please also indicate the function of each chemical and the amount added,
toxicity of each substance, public safety levels, and actual levels
remaining in supply after processing. “

 

Please find attached the information requested.

 

 

+--------------------------------------------------------------------------------------+
|Chemical |Function |Residual |Concentration|Prescribed |Health |
| | | |in Final |Concentration|Protection|
| | | |Water |or Value |Scotland |
| | | | |(PCV) |guidelines|
|----------------+--------------+---------------+-------------+-------------+----------|
|Poly aluminium |Coagulation – |Aluminium |30 µg/L |200µg/L |SHRAV |
|chloride |to aid removal| | | | |
|(PAC-10) |of dissolved | |(typical | |24 Hour = |
| |organics and | |range between| |900µg/l |
| |other | |15 and | | |
| |impurities | |50µg/L) | |7 Day = |
| |from the raw | | | |450µg/l |
| |water | |  | | |
| | | | | |  |
| | | | | | |
| | | | | |No WHO |
| | | | | |guideline |
| | | | | |but WHO |
| | | | | |suggest |
| | | | | |900µg/l |
| | | | | | |
| | | | | |  |
|----------------+--------------+---------------+-------------+-------------+----------|
|Polyacrylamide |Coagulation – |Epichlorohydrin|0.05 µg/l |0.1µg/L |WHO |
| |to aid removal| |(maximum | |Guideline |
| |of dissolved | |value – | |= 0.4µg/L |
| |organics and | |concentration| | |
| |other | |is typically | |  |
| |impurities | |lower) | | |
| |from the raw | | | |WRC |
| |water | | | |Guideline |
| | | | | | |
| | | | | |24 Hour = |
| | | | | |42 µg/L |
| | | | | | |
| | | | | |7 Day = 21|
| | | | | |µg/L |
| | | | | | |
| | | | | |  |
| | | | | | |
| | | | | |USEPA |
| | | | | |Guideline |
| | | | | |10 day = |
| | | | | |100 µg/L |
|----------------+--------------+---------------+-------------+-------------+----------|
|Chlorine |Disinfection |Total Chlorine |1.35mg/l |No PCV |SHRAV |
| | | | |assigned | |
| | | | | |24 Hour = |
| | | | | |3mg/l |
| | | | | | |
| | | | | |7 Day = |
| | | | | |3mg/l |
| | | | | | |
| | | | | |  |
| | | | | | |
| | | | | |WHO |
| | | | | |Guideline |
| | | | | |= 5mg/l |
| | | | | | |
| | | | | |  |
|----------------+--------------+---------------+-------------+-------------+----------|
|Ammonium |Disinfection –|Ammonium |0.32mg/l |0.5mg/l |No SHRAV |
|sulphate |ensures that | | | |or WHO |
| |disinfectant | | | |Guideline.|
| |is maintained | | | | |
| |throughout the| | | |  |
| |network | | | | |
| | | | | |UKWIR/WRc |
| | | | | |provide a |
| | | | | |Suggested |
| | | | | |No Adverse|
| | | | | |Response |
| | | | | |Level |
| | | | | |(SNARL) of|
| | | | | |1.5mg/l |
| | | | | | |
| | | | | |  |
|----------------+--------------+---------------+-------------+-------------+----------|
|Ortho-phosphoric|Control of |Phosphorous |0.7mg/L |No PCV |No SHRAV |
|acid |plumbosolvency| | |assigned |assigned |
| | | | | | |
| |(to prevent | | | | |
| |lead | | | | |
| |dissolving | | | | |
| |from plumbing)| | | | |
|----------------+--------------+---------------+-------------+-------------+----------|
|Lime |Adjust pH for |Calcium |11mg/L |No PCV |No SHRAV |
| |water | | |assigned |assigned |
| |stability | | | | |
| | | | | | |
| |(pH 8.0 - 8.5)| | | | |
+--------------------------------------------------------------------------------------+

 

Prescribed Concentration or Value are regulatory maximum limits. SHRAV is
the health risk value which is set by Health Protection Scotland.

 

If you have any queries regarding your FOI request please feel free to
contact me and I will be happy to assist. You can do this by contacting
the following email address [email address]

 

You can seek a review of this response within forty working days and
thereafter appeal to the Scottish Information Commissioner.

 

Further information on the appeals procedure can be obtained from the
attached document and the Commissioner's website at
[1]www.itspublicknowledge.info/Appeal.

 

Yours sincerely

 

Margaret Hopkins

FOI Analyst

Customer Experience Reporting
Buchanan Gate Business Park
Cumbernauld Road | Glasgow | G33 6FB

[mobile number]

[2][email address]

 

Scottish Water - Trusted to Serve Scotland

 

The information disclosed to you is prepared for Scottish Water's internal
purposes only and in relation to Scottish Water's operational requirements
at the time of preparation of the disclosed information.  Scottish Water
accepts no responsibility or liability for any use of, or reliance upon,
the disclosed information, howsoever arising.  Scottish Water hereby gives
notice that the disclosed information, represents the opinion/ position/
forecast/ analysis/evaluations/projections/views/situation at a point in
time and the aforementioned
opinion/position/forecast/analysis/evaluations/projections/views/situation
may become outdated/inaccurate/incomplete within a short space of time
after the date of the disclosed information being compiled.  Apart from
compliance with intellectual property laws (dealt with below), any use of
the disclosed information is entirely at your own risk and no warranty is
given in relation to fitness for any particular purpose, accuracy or
completeness. 

 

FREEDOM OF INFORMATION GIVES YOU A RIGHT TO READ THE INFORMATION FOR YOUR
PERSONAL USE.  THE DISCLOSED INFORMATION MAY CONTAIN INTELLECTUAL PROPERTY
RIGHTS, SUCH AS COPYRIGHT.  ACCORDINGLY, IF YOU WANT TO RE-USE THE
INFORMATION, YOU SHOULD ENSURE THAT YOU HAVE RELEVANT PERMISSIONS TO DO SO
FROM THE OWNERS OF INTELLECTUAL PROPERTY RIGHTS.

 

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 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
Horizons Ltd ("SWH"),Scottish Water International Ltd ("SWI") 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, SWH, SWI
and SWS2 are monitored.

WARNING: Although SW, SWH, SWI and SWS2 have taken reasonable precautions
to ensure no viruses or other malicious software are present, SW, SWH, SWI
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

[3]www.scottishwater.co.uk

References

Visible links
1. http://sut1.co.uk/sLJ85vvXsn4Tubvajtvcoq....
2. mailto:[email address]
3. http://www.scottishwater.co.uk/

Nid ydym yn gwybod a yw'r ymateb mwyaf diweddar i'r cais hwn yn cynnwys gwybodaeth neuai peidio - os chi ywCarin Blanchet mewngofnodwch a gadael i bawb wybod.