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Worksheet b: AQUEOUS EFFLUENTS | ||||
Company: Armond Engineering Ltd Completed by: J Price Date:20/07/99 |
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1. Major type and sources of aqueous effluent |
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Description | Source | Quantity/year | Disposal route | Consent conditions |
Spent paints and thinners, laboratory chemicals and washing solutions | Pre-treatment, painting and testing | 75 000 m3 | Foul sewer from effluent treatment plant | Discharge consent is attached |
2. Does the site posses an effluent treatment plant? |
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yes
Details of plant: Plant installed in 1990 to handle 40m3 /hour. Plans and description /specification of plant are attached |
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3. Are effluent monitored at point of discharge? |
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yes
Details: Local water company tests the discharges once every two weeks against the conditions of the discharge consent. Maintenance staff monitor and make a record of pH each day. |
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4. Annual cost of operating the effluent treatment plant |
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Labour | £6 000 | |||
Power and consumables | £4 000 | |||
Maintenance (parts and labour) | £3 500 | |||
Capital depreciation | £8 000 | |||
5. Annual cost of effluent discharge to sewer and/or controlled waters |
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Details: Effluent charges are £30 000 25 pence/m3 see water bill attached. |