As of 2012, the national sewage distribution rate was 91.6%, and 3,613 SWTPs with a total treatment capacity of 25,297,000 tons per day were being operated throughout the country. The sewage distribution rate was only 45.4% in 1995, but it increased rapidly for the next decade. In 2005, the rate reached 83.5% and it is steadily still increasing until now. The significant increase of sewage distribution mainly resulted from the massive investment in constructing SWTPs and such investment was triggered by the 1988 Seoul Olympic Games and the 1989 Comprehensive Plan on Clean Water Supply.

Sewage Statistics Trends

As of the end of 2012, the constructed length of sewage pipeline was 123,309km and it continues expand. The share of separated sewer system is also steadily increasing. Combined sewer system that drains both rainwater and wastewater accounts for 37.0%, while the remainings (63.0%) is separated sewer system which separately drain rainwater and wastewater.

Sewage Pipeline Distribution Status (constructed length)

The national sewage rate is 326.3 KRW per m3 in average as of 2012, and the price is just 40.0% of the production cost.

Sewage Service Price and Cost Recovery


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Last modified : 2017-12-12 08:38

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