Stakeholder - ALS Environmental


Leicester Septicity Sampling Project

The Rothley Valley Trunk Sewer project was a six month study of the sewer systems in West Leicester. The study consisted of a variety of investigation techniques.

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The Rothley Valley Trunk Sewer project was a six month study of the sewer systems in West Leicester. The study consisted of a variety of investigation techniques, with the key factor to the study being a five week water sampling project between September and October 2011.

Historically the Rothley Valley Sewer has had long term septicity issues associated with Hydrogen Sulphide, resulting in sewer collapse and on-going extensive use of chemical dosing.

The principal aim of the study was to better understand the network and develop an improved strategy of operation and maintenance for this section of the Leicester Sewer network.

The project consisted of 11 sample points along the Rothley Valley Sewer that were sampled three times a day over a 35 day sampling period, resulting in over 1,500 samples over the five weeks. Due to the extended nature of this project, four sampling teams were on duty to cover the five week period.

Analytical Testing Requirements

To ensure that a high level of unrepeatable samples were taken correctly, the project was created using the ALS Environmental PreReg system whereby all samples containers are registered and labelled prior to being issued to Pick Everad.

The samples were collected on weekdays from Severn Trent Water’s Wanlip Treatment Works. Pick Everard delivered samples direct to the Coventry site at weekends to ensure samples were within the stability period. All samples were analysed for:

  • BOD analysis
  • COD analysis
  • Dissolved Oxygen
  • Nitrate
  • Sulphate

Pick Everard utilised the ALS dataview system to track results to help monitor data. In addition they received analytical reports in both PDF and CSV format to allow the data to be uploaded into the contractor’s reporting system.


Facts & Figures

Contractor: Pick Everard

Project Length: 35 days continuous sampling as part of a six month study.

Plants: 11 sample points across West Leicester.

Samples: Over 1,100 samples during 35 days.

 

Contact Us

ALS Environmental

Torrington Avenue

Coventry

CV4 9GU

T:  024 7642 1213

or :

Units 7 & 8

Hawarden Business Park

Manor Road

Hawarden

Flintshire

CH5 3US

....................................................

E: [email protected]

www.alsenvironmental.co.uk


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Testimonials


We had potential water quality problem due to the actions of a third party and needed samples taken as a matter of urgency. Although this was outside the strict terms of our contract with ALS they were able to provide a sampler on a Friday afternoon, get the samples taken and returned to their labs for analysis.

They backed this excellent performance up by emailing us the sample results over the weekend. All in all a great piece of customer service!



Bob Windmill, Head of Water Quality, Independent Water Networks

ALS are a really easy company to deal with their professional attitude to the range of services they provide for us is second to none. The people there listen carefully and respond very quickly to our requests , we have dealt with them for the last eight years and their customer advisors understand our business and not only their own.”

Ken Begg, Director, Aberdeen Sampling Ltd
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