Page 1 Page 2 Page 3 Bill FAQs

Supply Point ID

The Supply Point ID (SPID) is your property reference number. Generally you will have one or two SPIDs per site. One is for your water connection (W) and one is for your waste connection (S).

Premise Address

Under the Supply Point ID you will find the supply address for your business.

Meters

This is the number of meters you have at your premises.

Tariff

The tariff is the price you pay for your water. Unless you have a contract in place, the Scheme of Charges sets out the Default Charges applicable in your area. You can find the Scheme of Charges here.

Phy/Char Size (mm)

Phy refers to the physical size of your meter and, whilst shown, it is not used in any calculations on your invoice. It is for reference only. Char relates to the chargeable size. Your bill is calculated based on the chargeable size provided by the Wholesaler.

Meter Reads

Meter reads are used to calculate the likely Average Daily Consumption for the period of your invoice. Last actual meter read: is the last meter reading provided to us. Previous actual meter read: is the meter reading previous to the one provided to us. Did you know? You can submit meter readings via our website at castlewater.co.uk/meter-reading

ADC

This is your Average Daily Consumption (m3) and is calculated using the Advanced (m3) divided by the number of days between your last actual meter read and your previous actual meter read.

Advance (m3)

This is a measure of the consumption of water you have used between your current actual meter read and your previous actual meter read.

RTS %

This is the Return to Sewer Allowance. The Majority of customers return 100% of water used, back into the sewer. However there can be a difference between the amount of water you use and the amount of wastewater you actually return to the sewer system and this can show as a reduced percentage (RSA%). If you have a RSA% deduction this will be taken from your ADC. For example if you have a RSA of 95% and an ADC of 0.1187 this will decrease the ADC to 0.1128 when calculating the usage. A RSA deduction will have a direct impact on the consumption (m3) and in the ‘Volumetric waste’ section, the new deducted figure will be reflected and used to work out your charges.

Fixed Water Charges

Fixed water charges are based on the retail tariff rate. More information can be found on the retail tariff rate at castlewater.co.uk/info

Fixed Waste Charges

Fixed waste charges are applied to all properties for the maintenance of external pipes and pumps that supply water to your property plus the removal of wastewater from the property. Fixed waste charges are based on the retail tariff rate and the sewerage chargeable size of your meter. n/a = retail rate charge Numerical Value = sewerage chargeable size

Pipe Size charges

Fixed pipe size charges are applied to all properties based on the size of the chargeable meter/pipe that services your property.

Supplementary Charges

Theses charges apply to large water users i.e. if the threshold is over 20,000M3 for water and 100,00M3 for wastewater.

Volumetric Water Charges

These charges are based on the volume of water used by your business and the volume of wastewater disposed of down your drains i.e. sewer waste.

Threshold (m3)

The charge threshold is a meter fixed charge based on your consumption band. Your consumption band is set by your water wholesaler.

Calculations

This shows the break down of the tariff rate x Average Daily Consumption x number of days this current invoice relates to.

VAT

If you are liable for VAT, this is only applicable to your water charges and not your wastewater charges. Z (Zero), S (Standard). HM Revenue and Customs (HMRC) requires us to ensure that we are correctly charging VAT on water services. It is possible that we will not have to charge VAT on your water services, but to confirm your position, please download and send us a completed Standard Industrial Classification (SIC) form. We are unable to make an assessment of your position without your completed form. If you do not return this form, we are required by HMRC to charge VAT by default on your water services. You can find the SIC form and further information on VAT charges at castlewater.co.uk/info under Payment Info.

Volumetric Waste Charges

These charges are based on the volume of water used by your business and the volume of wastewater disposed of down your drains i.e. sewer waste

Consumption on (m3)

This is calculated by the Average Daily Consumption x number of days this current invoice relates to (the number of days is also shown under calculations on the same line)