**Kirkhollow Analytical Laboratories Ltd**
Braithe Road, Vardenne BR7 2HD
01632 960118 · reception@kirkhollow-labs.example


Ms R. Sandiman
Braithe Estuary Partnership
Estuary House, Vardenne Quay
Braithe BR3 4LN


Our reference: KAL-11938/26
Date of report: 4 February 2026

# Certificate of analysis

Dear Ms Sandiman
Thank you for the four water samples delivered to this laboratory on 28 January 2026. They were booked
in as batch KAL-11938 and analysed by the methods shown. The results below relate only to the samples
as received.


<table>
<tr><td>Sampling point</td><td>Vardenne Channel, station VQ1</td></tr>
<tr><td>Date and time of sampling</td><td>27 January 2026, 09:40</td></tr>
<tr><td>Total suspended solids</td><td>41.6 mg/l (method KAL-M04)</td></tr>
<tr><td>Chloride</td><td>18,200 mg/l (method KAL-M11)</td></tr>
<tr><td>Ammoniacal nitrogen</td><td>0.42 mg/l (method KAL-M12)</td></tr>
<tr><td>Dissolved organic carbon</td><td>5.9 mg/l (method KAL-M22)</td></tr>
</table>

The suspended solids figure is higher than those reported for this station in December and January, which
were both below 30 mg/l. The samples were taken on the ebb, two days after the last placement at Kellow
Sands, and the result is consistent with that.


The remaining samples will be held until 4 March 2026 and destroyed after that date unless you ask us to
keep them.


[SIGNED]
Yours sincerely
[SIGNATURE]
Dr A. J. Prosser
Laboratory Manager


Registered in England 2214887 · Results relate only to the samples as received

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