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Discharging to a ditch, stream or river? A sewage treatment plant is the standard compliant fix. We match you with up to 3 verified local specialists to install one.
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Where a septic tank discharges to surface water, or a drainage field is not viable, a sewage treatment plant produces clean effluent that can lawfully discharge to a watercourse. It is the usual answer to the 2020 General Binding Rules.
The compliant upgrade
A correctly sized, installed and serviced treatment plant meets the 2020 General Binding Rules where a septic tank discharging to surface water does not.
Typical cost
Fitted; varies with unit, groundworks and discharge arrangements
- Fixed quotes before anyone visits
- Qualifications & insurance checked
- Matched to up to 3 vetted specialists — not the whole market
Matched to a shortlist — not blasted to the market
We match you with up to 3 verified local specialists — never more — and send their quotes by email, so you compare a shortlist instead of fielding calls from a dozen firms.
What's involved
Sewage Treatment Plants
Where a septic tank discharges to surface water, or a drainage field is not viable, a treatment plant is the compliant route.
Plants are sized to population equivalent and chosen for your site, power supply and access — the right unit, not the cheapest.
Full installation and commissioning, plus an annual service plan that keeps the warranty valid and the discharge compliant.
FAQs
Sewage Treatment Plants questions
How much does a sewage treatment plant cost?
A domestic sewage treatment plant typically costs between £8,000 and £15,000 fitted, depending on the unit, groundworks and discharge arrangements.
What is the difference between a septic tank and a treatment plant?
A septic tank settles waste and relies on a drainage field; a treatment plant actively treats the wastewater to produce clean effluent that can discharge directly to a watercourse, which a septic tank cannot legally do.
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