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Holkham

Design drawings produced

November / December 2004

Groundbreaking commenced

October 2005

Construction completed

May 2006

Plant Type

Aerated facultative lagoon system

Design Population Equivalent (including non-village septic tank imports)

540

Design Average Flow

111m³/day

Primary Cell BOD Load

32kg/day

Septic Tank Imports

2m³/week

Client

Holkham Estates

Plant Design and Supervision Services

LAS International

Consultants

Plandescil

Main Contractor

Breheny

Surface Area

0.465ha (approx 1 acre)

Depth

1.85m

Water Surface

0.202ha

Depth

2.5m

Aerator / Processors

2 x LAS Mark 3 (wind-powered)

Back-up Motor

500W

Plant Cost (excluding sewer extensions)

£240,000

Approx per Capita Cost

£440
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