Effluent sewer
Effluent sewers also currently serve fewer people than septic systems, which also use septic tanks, but simply dispose of the effluent by draining it into a leach field. About one quarter of United States homes dispose of their wastewater with septic tanks. However, effluent sewers are being looked at as a sewage treatment solution in areas where gravity sewer systems are not well-suited or when the high capital cost to build a gravity system is prohibitive. Areas that are less than ideal for gravity systems include areas that are large, but extremely flat and areas that require long-distance pumping, such as where homes are widely spread out or when several small villages or towns connect their sewage systems so that a centralized plant can be built.
South Hook LNG terminal
The terminal is built to store and re-gasify liquefied natural gas imported from the Qatargas 2 LNG plant in Qatar. in the five storage tanks located onsite. The large tanks are each 94 metres in diameter and 31 metres high, rising another 12 metres to the top. This makes a tank's volume roughly equivalent to that of Albert Hall.
The regasified natural gas is to be fed through the South Wales Gas Pipeline to the national gas network at Tirley, Gloucestershire.