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| Sewage System and septic tank Costs |  |
Sewage Treatment System and Unit costs
Approximate overall costs of differing systems of sewage treatment for a single property in the UK
The Cesspool (6 person)
Typical Installation Costs
- Tank Cost = £2800
- Installation Cost = £2500
- TOTAL COST = £5300
Typical Maintenance Costs (Emptying only is required)
- Average family of 4 persons x 200 litres per day = 800 litres per day volume discharged.
- Min. tank capacity = 18,000 litres Storage capacity = 18000 / 600 = 22.5 days
- Therefore tank will require emptying - 365 / 22.5 = 16.2 times per year = SAY 16
- With an average emptying cost of say £110 per 4500 litres, a complete emptying of 18000 litres will cost £440
- Average annual cost = 16 x £440 = £7040 per year
The Septic Tank (6 person)
Typical Installation Costs
- Tank Cost = £750 (larger tanks cost more)
- Installation Cost = £1000
- Land drainage system (assuming 100 metres of drains) = £4200
- TOTAL COST = £5950
Typical Maintenance Costs
- Emptying once per year = £160 per year
- Percentage cost of replacement soakaway (every 10 years average ) =£420.
The Traditional Packaged Sewage Treatment Plant (6 person)
Typical Installation Costs
- Plant Cost = £2000 to £3200
- Installation Cost = £2200 to £3000+ (depending on the model.)
- Land drainage system (assuming 100 metres of drains) = £4200 or £200 typical cost if to a ditch with a 10 metre pipe run
- TOTAL COST = £ £4200 to £10,000+
Typical Maintenance Costs
- Emptying (either annually or 6 monthly, depending on the model) £180 to £360 per year
- Power consumption = say £100 per year
- Maintenance Service = £130 to £375 (depending on unit chosen )per year
- TOTAL COST = £410 to £835 per year
The Modern Extended Aeration Packaged Sewage Treatment Unit (6 person)
Typical Installation Costs
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Plant Cost = £2200 to £2400
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Installation cost = £600 to £900
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Drainage system to Ditch = £20.00/metre of drain run
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TOTAL COST £2800 to £3300
Typical Maintenance Costs
- Emptying once every 5 years = £36.00/year
- Power consumption = £100.00
- Maintenance Service = £125
- TOTAL COST £261.00 per year
Reed Bed Sewage Treatment (following a sewage system)
Typical Installation Costs NOT including the septic tank
- Total supply and Installation Cost = £ 8500 (including power supply etc.)
- Land drainage system (assuming 100 metres of drains) = £ 4200 (or this may be a reduced cost if using an outfall pipe to a stream)
- TOTAL COST = £12700 (Note - there may be a cost for the larger area of land required)
Typical Maintenance Costs
- Emptying of tank once per year = £160 per year
- Power consumption if pumps are required = £90 per year
- Maintenance = reed harvesting/composting/replanting (4 days work) = £450
- TOTAL COST = £600 per year
Please Note
- These are only comparative guide prices and may not be the same for your situation.
- Please do not use these costs in your case as here may be circumstances which would change the overall costs. (particularly the site topography.)
- These budget costs are based on prices obtained in 2008.
- These costs do not include any local fees, professional fees, taxes, or any costs for approvals.
- These costs are for a single property. Where there are more properties to be connected to a single reed bed sewage system costs will vary.
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Waste Tech Environmental Ltd.
UK Tel 01757 288022
Ireland Tel 063 81321
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