467.—(1) Yn Atodlen 3, mae paragraff 11(3) wedi ei ddiwygio fel a ganlyn.
(2) Ym mharagraff (b), ar ôl “watercourse” mewnosoder “in England”.
(3) Ar ôl paragraff (b) mewnosoder—
“(ba)the Natural Resources Body for Wales, if the drainage system directly or indirectly involves the discharge of water into a watercourse in Wales;”.