Editing Karachi (section)

===Sanitation===

98% of Karachi's households are connected to the city's underground public sewerage system,<ref name="SPDC"/> largely operated by the Karachi Water and Sewerage Board (KW&SB). The KW&SB operates 150 pumping stations, 25 bulk reservoirs, over 10,000 kilometres of pipes, and 250,000 manholes.<ref name="shehri.org-2018" /> The city generates approximately 472&nbsp;million gallons daily (MGD) of sewage, of which 417 MGD are discharged without treatment.<ref name="shehri.org-2018" /> KW&SB has the optimum capacity to treat up to 150 MGD of sewage, but uses only about 50 MGD of this capacity.<ref name="shehri.org-2018" /> Three treatment plants are available, in [[SITE Town]] (Gutter Baghicha), [[Mahmudabad, Karachi|Mehmoodabad]], and Mauripur.<ref name="shehri.org-2018" /> 75% reported in 2022 that Karachi's drainage system overflows or backs up,<ref name="SPDC" /> the highest percentage of all major Pakistani cities.<ref name="SPDC" /> Parts of the city's drainage system overflow on average 2–7 times per month, flooding some city streets.<ref name="SPDC" />

Households in [[Orangi]] self-organized to set-up their own sewerage system under the '''[[Orangi Pilot Project]]''',<ref name=sewer>{{cite news |title=Fed up with no sewers, Pakistan's slum residents go DIY |url=https://www.reuters.com/article/us-slums-pakistan-sewage/fed-up-with-no-sewers-pakistans-slum-residents-go-diy-idUSKCN12D1PK |access-date=29 November 2017 |work=Reuters |date=October 2016 |archive-date=1 December 2017 |archive-url=https://web.archive.org/web/20171201043112/https://www.reuters.com/article/us-slums-pakistan-sewage/fed-up-with-no-sewers-pakistans-slum-residents-go-diy-idUSKCN12D1PK |url-status=live }}</ref> a community service organization founded in 1980. 90% of Orangi streets are now connected to a sewer system built by local residents under the Orangi Pilot Project.<ref name="sewer" /> Residents of individual streets bear the cost of sewerage pipes, and provide volunteer labour to lay the pipe.<ref name="sewer" /> Residents also maintain the sewer pipes,<ref name="sewer" /> while the city municipal administration has built several primary and secondary pipes for the network.<ref name="sewer" /> As a result of OPP, 96% of Orangi residents have access to a latrine.<ref name="sewer" />

The Sindh Solid Waste Management Board (SSWMB) is responsible for the collection and disposal of solid waste, not only in Karachi but throughout the whole province. Karachi has the highest percentage of residents in Pakistan who report that their streets are never cleaned{{snd}}42% of residents in Karachi report their streets are never cleaned, compared to 10% of residents in [[Lahore]].<ref name="SPDC"/> Only 17% of Karachi residents reporting daily street cleaning, compared to 45%
in Lahore.<ref name="SPDC">{{cite web |url=http://www.spdc.org.pk/Data/Publication/PDF/AR2014-15.pdf |title=SOCIAL DEVELOPMENT IN PAKISTAN ANNUAL REVIEW 2014–15 |year=2016 |publisher=SOCIAL POLICY AND DEVELOPMENT CENTRE |access-date=28 November 2017 |archive-date=5 April 2020 |archive-url=https://web.archive.org/web/20200405051228/https://www.spdc.org.pk/Data/Publication/PDF/AR2014-15.pdf |url-status=dead}}</ref> 69% of Karachi residents rely on private garbage collection services,<ref name="SPDC"/> with only 15% relying on municipal garbage collection services.<ref name="SPDC"/> 53% of Karachi residents in a 2022 survey reported that the state of their neighbourhood's cleanliness was either "bad" or "very bad".<ref name="SPDC"/> compared to 35% in [[Lahore]],<ref name="SPDC"/> and 16% in [[Multan]].<ref name="SPDC"/>