We offer exhauster services (emptying of septic tanks) to residents of Kisumu County. This cost Ksh 3000/= per 10km radius.

Water treatment & Supply

KIWASCO has two water treatment plants, that is Dunga and Kajulu water treatment plant. Dunga water treatment plant is able to produce 44000m3 per day while Kajulu produces 36000m3 per day. The current demand in the city is 58000m3, which is below our total treatment capacity of 80000m3 per day. Currently we split water production, Kajulu serving 60% while Dunga serves 40% through gravity and pumping respectively.

Our water supply coverage stands at 82%. The Company has 34,000 connections, 82 per cent of which are domestic customers, 8% is commercial while 1% government.

We offer the following water services:

  1. Sale of potable water.
  2. Bulk water sale.
  3. Laboratory water quality tests for private water services

The benefits of our water services include

  1. Clean high quality water
  2. Affordable prices to all consumers
  3. Professional service
  4. Quick response to customer needs and complaints
  5. Convenient and reliable water supply

Bulk Water Sale

The rates are as follows Ksh 1000/= per 10,000 litres. You need to have a bowser to venture into this.

If interested in the service, visit our offices or call or hotline numbers for assistance.

This is a pre-paid service and payment can only be done via Mpesa.

We offer sale of Quality Bulk water at affordable and competitive price from our Dunga treatment plant.

The rates are as follows Ksh 1000/= per 10,000 litres. You need to have a bowser to venture into this.

If interested in the service, visit our offices or call or hotline numbers for assistance.

This is a pre-paid service and payment can only be done via Mpesa.

In 2018, we were awarded by WASREB AS THE Best Utility in Customer Servce during the Impact Report that is normally held annually. This is a result of every effort we put in place as utility to ensure that you are happy and and satisfied as a customer.

Our Customers are at the centre of our Business and we offer Bespoke services to ensure that they receive quality service. We have an established 8am-5pm Customer Experience centre at our head office at Nafaka House, along Oginga Odinga street in the Central Business District, a 12 hour hotline – 0700 517 517 or 0755 517 517 to attend to your queries via phone. We are also very active on Social Media pages: Facebook Kisumu Water and Sewerage Company Limited, Twitter @KIWASCO.

Please read our Customer Service charter to obtain more information on what our responsibility is to you and what is expected of you as a customer.

Sewerage & Sanitation Services

The company recently expanded its mandate to incorporate sanitation and this included change of name from ‘sewerage’ to ‘sanitation’.

We have two sewerage treatment facilities, Kisat Conventional Sewerage Plant, with a capacity of 8,000 m3 per day and Nyalenda Oxidation ponds with a capacity of 18,000 m3 per day. Currently, only an estimated 18 per cent of the city’s residents are connected to the central sewerage system. The customers on sewerage network are low since most households use individual septic tanks and also pit latrines especially in the informal settlements.

The company has purposed to enter into partnerships with sanitation-related organizations along the value chain such as Water and Sanitation for the Urban Poor (WSUP), Sanergy, Sanivation, Quercus group etc in order to fill the gap of the 82% coverage that is not taken care of.

Some of the efforts we have made are:

Through AFWA we have benefited from funding on capacity building to enable us deliver City-Wide Inclusive Sanitation.

  • Kisumu Pit emptiers – in the low-income areas, more people use pit latrines which they empty from time to time. The pit emptiers had numerous challenges that included; emptying in the open areas, working only at night since the job was seen as degrading among other challenges. To help clear this up, Kiwasco engaged these groups and since then we have helped them by;
  1. Capacity building,
  2. Allowing them to dispose in our lagoons,
  3. Equip them with relevant tools for the work
  4. Branding of the groups
  5. Demystifying the fecal waste in the communities


  • Scaling the sanitation service chain partnership with private business enterprises:
  1. Public Private Partnership – as we focus on re-use and value addition on fecal sludge management, we have identified organizations that major on the same and so far, KIWASCO has signed MOU with the these organizations. And this will mean that all wastes will be managed and used appropriately.
  2. Incentives – In Obunga we have sourced for funds to discourage open defecation and direct disposal into water bodies. Currently we are working on improving 200 toilets by giving incentives of up to 20USD for each toilet rehabilitated or built. Our target is to upscale 2000 by the end of the year. The design is friendly enough to enable the decent and hygienic pit emptying.


  • Through other stakeholders we acquired 2 exhausters to help in emptying the septic tanks at affordable rates within Kisumu city and its environs
  • The sludge from the waste water treatment plant is sold at affordable rates to be used in tree and flower planting. Future plans are under way to add value and sell the product as organic manure to support support Agri-business.

Sanitation services include:

  • Treatment of waste water
  • Sale of sludge
  • Exhauster services

Why Choose Us?

  • Effective disposal of sewer in an environmental friendly way
  • Quick response to unblock blocked sewer lines
  • Maintenance of sewer lines