This map shows the location of sewage works that are owned and operated
by United Utilities . The data is divided into 2 layers, that can be toggled
on and off. Larger Waste Water Treatment Works (WwTW) and Smaller Waste
Water Treatment Works (Small WwTW).
You can
selectthe check boxes to choose
between layers showing Small, Medium and Large Sewage Treatment Works:
Small Size - Population served under 2000
Full Sized - Population served greater than 2000
You will see that some locations have a description of the type of
treatment (decipher using below codes):
P Primary settlement only
CSAS Crude sewage activated sludge (ie no primary sludge is
generated)
SB Secondary Biological filtration - trickling filters, RBCs
etc. Sludge produced will be a mixture of primary and secondary
sludge.
SAS Secondary Activated sludge. Sludge produced will be a
mixture of primary and secondary sludge
Cphos Phosphorus removal via chemical dosing
Bphos Phosphorus removal through biological nutrient removal
Southwest
Environmental Limited