Services > Effluent Bill Analysis & Reduction Plan

Effluent bill analysis could save you thousands

How is your Bill Calculated?

Your waste water bill (trade effluent bill) is calculated as follows:

A) Effluent volume (with no flow meter installed this is estimated based on incoming water minus an industry standard amount for product manufacture and a domestic amount per employee).

B) Pence per unit based on the chemical oxygen demand and suspended solids in your effluent and calculated by the mogden formula (without a composite sampler installed on site this is usually based on a spot sample of your effluent taken by the water company on a periodic visit to your site and can lead to inaccurate and inconsistent bills).

Total bill = A x B

See our Mogden Formula Calculator to see how a reduction in COD and SS could impact your bills.

What can I do?

To get accurate and representative bills we can install survey measurement equipment to accurately measure your waste water volume and a sampling system to ensure that peaks and troughs of good and bad waste are evened out throughout the day. These samples are then analysed in approved laboratories for quality and load such as COD/BOD, Suspended solids, pH and any other specific contaminants such as sulphurs, nitrates, etc.


  • A comprehensive report detailing our findings.
  • A proposal to introduce equipment, treatment or changes in working processes to reduce your effluent bills.
  • An estimation of the cost savings and payback period.

How can I progress this?

The process is very simple:

  1. Provide us with a minimum of 12 months of effluent bills.
  2. Complete a short questionnaire about your company and manufacturing processes.
  3. If we feel you are likely to benefit from a cost saving we will then undertake an audit of your plant free of charge.
  4. We will then put forward a proposal and costing to install measurement equipment.


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The Old Mill Wainstalls
Halifax, West Yorkshire
HX2 7TJ, United Kingdom.
tel: +44 (0)1422 363 462

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