Rhag ofn y bydd o gymorth:
"The present headworks were built in 1989 and consists of an underground
chamber with two stone clad buildings of approximately 5 m height.
The headworks provides preliminary treatment only, with screenings
macerated and returned back upstream of the screens."
On Fri, 15 Mar 2002 15:49:27 +0000, Sian Roberts
<[log in to unmask]> wrote:
>"headworks : Civil Engineering. any device or structure at the front or
> diversion point of a waterway to control the amount of water flowing. "
>
>Unrhyw gynigion?
>Sian
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