Mae rhai eiddo yng Nghymru a Lloegr yn cael eu gwasanaethu gan systemau trin carthffosiaeth preifat nad ydynt wedi’u cysylltu â charthffos gyhoeddus. Mae dyletswydd ar ymgymerydd carthffosiaeth i ddarparu carthffos gyhoeddus at ddibenion carthffosiaeth ddomestig pan fo’r amodau a ragnodir yn adran 101A(2) o’r Ddeddf wedi’u bodloni.
There are properties in England and Wales that are served by private sewerage treatment systems that are not connected to a public sewer. A sewerage undertaker has a duty to provide a public sewer for domestic sewerage purposes where the conditions prescribed by section 101A(2) of the Act) are satisfied.