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Streamline Orange

As a guide, if you use between 501 and 5,000 cubic metres of water a year, the Streamline Orange tariff could be the best option for you.

The elements of this tariff are:

2013/14 Charges	Water	Sewerage
a fixed charge	£100.00	£184.00*
and either
a volumetric charge per cubic metre	£1.2577	£1.4627
or
a volumetric charge per cubic metre (non-potable**)	£1.1319	n/a
plus
trade effluent charges (where applicable)

Notes: **Limited availability

*A reduced fixed charge is available for properties not connected to the public sewer for surface water drainage. The charge for 2013/14 is £132.00.

Trade effluent unit prices

2013/14 Charges
R - reception and conveyance	£0.2285
VB - volumetric and primary treatment (works with biological treatment)	£0.4268
B - biological treatment	£0.3439
S - sludge treatment and disposal	£0.2629

Trade Effluent - the Mogden formula

Trade effluent charges are calculated in line with the Ofwat-approved Mogden formula, set out below, which is used by all sewerage companies.

C = R + VB + Ot/Os(B) + St/Ss(S)

Ot - chemical oxygen demand (COD) (in mg/l) of the trade effluent after one-hour quiescent settlement

Os - the mean strength of settled sewage at Anglian Water's Sewage Treatment Works, as determined by COD (485mg/l)

St - total suspended soils (in mg/l) of the trade effluent

Ss - the mean suspended solids content of the sewage at Anglian Water's Sewage Treatment Works (417mg/l)