GAZETTE NOTICE NO. 9150

under the powers granted by section 72 (1) (b) and (2) of the Water Act, 2016, has approved the regular tariff adjustment for the area served by Githunguri Water and Sanitation Company Limited (GIWASCO). Githunguri Water and Sanitation Company Limited (GIWASCO) applied to the Water Services Regulatory Board (WASREB) for review of water services tariffs, for the period 2026/2027 to 2028/2029as per section 72 (1) b of the Water Act 2016. 19th June, 2026 THE KENYA GAZETTE Public consultation on the GIWASCO application was carried out in accordance with the requirements of section 139 of the Water Act 2016. Having considered the application, the written and oral submissions by all stakeholders and the current data, WASREB has determined that an upward tariff review is justified for GIWASCO to improve service delivery, operate sustainably and protect consumer interests by meeting the conditions attached to the tariff. WASREB hereby gives a one-month notice from the date of this communication to all existing and potential customers of GIWASCO that the structure of approved tariffs for water services for the three financial years 2026/2027, 2027/2028 and 2028/2029 shall be as follows: 5.0 Approved Tariff Structure 1.1 Water Tariff Structure for the period 2026/2027 to 2028/2029 Consumer Categories Consumption Block Approved Tariff (M3) (Kshs/M3) Domestic/Residential 1-6 115 7-20. 135 21-50 145 51-100 150 101-300 155 >300 160 Multi- Dwelling Units Flat Rate 135 Commercial/Industrial 1-50 145 51-100 150 101-300 155 >300 160 Government/Institutions 1-50 145 51-100 150 101-300 155 >300 160 Public Schools, Colleges, and Universities 1-600 120 601-1200 140 >1200m3 160 Unique Consumer Categories Water kiosks 70 Bulk Sales 73 Customers with non-functional meters shall be billed based on the average of the last three months’ bills. 1.3 Indexation The utility’s approved tariffs for water and sewerage shall be eligible for annual indexation, as per the regulations of the Water Services Regulatory Board (WASREB). The inflation adjustment shall come into effect every July of the tariff period commencing July 2027. 1.4 Miscellaneous Charges These shall be as follows: Item/ Service Charge (Ksh.) Water Deposit Category of consumer Domestic 2,500 Retail shops less than 10m3 3,000 Retail shops with more than 10m3 3,500 Bar and restaurants with less than 15 m3 4,000 Bar and restaurants more than 15 m3 6,000 Hotel class “A” and “B” with less than 150 m3 12,000 Hotel class “A” and “B” with more than 150 m3 15,000 Hotel class “C” and ‘D’, with less than 150 m3 18,000 Hotel class “C” and ‘D’ more than 150 m3 20,000 Hospitals and Health centres more than 150 m3 20,000 Hospitals and Health centres with less than 150 m3 12,000 Schools and other institutions have more than 200 m3 20,000 Schools and other institutions with less than 200 m3 10,000 Minor construction sites of more than 200 m3 15,000 Major construction sites with more than 300 m3 50,000 Light industries with less than 200 m3 30,000 Medium industries between 200 m3 and 300 m3 50,000 Heavy industries of more than 300 m3 100,000 Water Kiosks 5,000 Customers with only a sewer connection are to be charged a deposit equivalent to a water connection 3006 3006 Item/ Service Charge (Ksh.) Other Charges Service New water connection fee – Connection size: ½ inch to 1 inch 2,500 New water connection fee – Connection size: 1.5 inches to 3 inches 7,500 New water connection fee – Connection size above 3inches 15,000 Water Reconnection fee – at meter point 1,000 Water Reconnection fee – at mains 5,000 and double deposit Tanker – 8000 & 16,000 litres 2,500 & 5,000 respectively per tanker within GIWASCO’s area for all consumers Sale of water per M3 at Bowsing Point (own tanker) Ksh. 135 Replacement of stolen or damaged meters 100% of the market cost of the meter Meter testing on request 500 Leak detection services 1,000 Statement of account fees 200 For cutting off the supply at the request of the consumer 200 For turning on the supply other than in respect of a first connection 200 Exhauster Services (Company Exhauster) 5,000 for other customers and 4,000 for informal settlements Private Exhausters (Dumping into the company’s sewer system) 15,000 per truck per month Penalties Illegal water connection -Commercial, Industry, Construction (Fraud) 100,000 plus estimated consumption during the period of illegality Illegal water connection (Fraud) – Domestic 30,000 plus estimated consumption during the period of the illegality Overcharging (fraud) at the water kiosk 15,000 Self-reconnection after cut-off for non-payment 5,000, and billing to be backdated from the date of the cut-off Surcharge for tampering with meters (this includes meter removal, reversing of meter, etc.) 5,000 Surcharge for direct suction of water from the supply line using a pump 10,000 6.0 Cost Structure 6.1 Cost Summary Below is the summary of the projected Annual cost structure that makes up the total costs to be incurred by GIWASCO during the tariff period: Expenditure Item 2023/2024 2024/25 2025/26 2026/27 2027/2028 2028/2029 Operations 75,970,710 82,533,072 94,083,072 94,321,635 93,042,903 96,699,224 Maintenance 4,197,622 6,478,980 11,948,000 14,954,250 17,254,900 17,254,900 Regulatory Levy 1,766,934 1,884,941 2,624,114 5,275,817 6,054,590 6,654,289 Total O&M Costs 81,935,266 90,896,993 108,655,187 114,551,702 116,352,393 120,608,413 Investment Costs - - - 10,790,000 25,138,927 38,816,528 Debt Repayment - - - - - - Total Costs 81,935,266 90,896,993 108,655,187 125,341,702 141,491,320 159,424,941 Total Billing (KShs) 44,173,359 48,392,060 65,602,861 131,895,425 151,364,739 166,357,213 Collection Efficiency (%) 94% 92% 95% 95% 95% 95% Projected Revenue 41,522,957 44,520,695 62,322,718 125,300,654 143,796,502 158,039,352 O&M Cost Coverage 51% 49% 57% 109% 124% 131% Total Cost Coverage 51% 49% 57% 100% 102% 99% 7.0 Conditions attached to the tariff approval. The conditions attached to this approval which shall form part of the license conditions of GIWASCO are: 7.1 Service Delivery Conditions attached to the Tariff Service Delivery Conditions Target 2023/2024 2024/2025 2025/2026 2026/2027 2027/2028 2028/2029 Water Coverage (%) 22% 11% 13% 16% 20% 30% Water Quality Standards 97% 98% 100% Personnel Expenditure as % of O&M 30% 31% 29% 29% 28% 28% Maintenance Expenditure as % of O&M 5% 7% 8% 8% 9% 10% Non-Revenue Water 63% 59% 57% 54% 50% 45% Hours of Supply (Hrs.) 16 16 17 18 19 20 Staff per 1000 connections 4 5 6 6 6 6 Metering ratio (%) 100% 100% 100% 100% 100% 100% Collection Efficiency (%) 94% 92% 95% 95% 95% 95% Resale at Kiosk Ksh 2 per 20 L Jerry can Ksh 5 per 20 L Jerry can 19th June, 2026 THE KENYA GAZETTE 7.2 Annual budgets: The WSP shall adhere to the budgetary levels set in the tariff. 7.3 Surpluses: The surpluses realised during the tariff period shall be used to implement priority service delivery capital projects approved by WASREB 7.4 Reporting: The utility shall submit to WASREB a quarterly performance report in the format provided 7.5 Regulatory Levy: The utility is to pay a monthly regulatory levy based on 4% of turnover, which is inclusive of billing for other services and interest income earned. 7.6 Investments: The utility shall undertake the investments in Appendix 1. 8.0 Penalty notice 8.1 Take note that failure of an Accounting Officer to administer this tariff and the conditions attached to it is an offence subject to section 196 (2) of the Public Finance Management Act 2012, 117 (1) (aa) of the County Governments Act 2012, Sections 147 and 158 of the Water Act 2016, and Regulations 46 (1), 101 and 105 of the Water Services Regulations 2025. 8.2 Failure to comply with the tariff and conditions attached to it amounts to a breach of licence conditions and shall attract sanctions pursuant to section 92 of the Water Act 2016, including: v.Payment of a penalty vi. Suspension or cancellation of the licence vii. Placement of the utility under Special Regulatory Regime viii. Prosecution. APPENDIX 1: PROPOSED INVESTMENTS GIWASCO INVESTMENTS SCHEDULE – INTERNALLY GENERATED FUNDS FY 2026/2027 Targetted Investment Project Area Size Descriptions Uni t Unit Cost Quantit y Cost (Ksh) A. Regional Master meters Kwa-Maiko master Meters 4-inch Volumetric Meter No 80,000 10 800,000 Raiyani Master Meters 2-Inches Volumetric Meter No 40,000 10 400,000 Kambui Master Meters 3-Inch Volumetric Meter No 70,000 5 350,000 GIthunguri DMA Meters 2 -inches Volumetric Meter No 40,000 8 320,000 B.NRW Reduction Plan To reduce NRW from 59% to 57% NRW Reduction activities Purchase of consumer meters No 4,000 1,300 5,200,000 D. Rehabilitation of Service Lines Rehabilitation of Raiyani distribution line. Lay of assorted distribution lines ranging from DN 32mm to 63mm to cover 3km in Raiyani Lay 1.5km of DN 63 and DN 32mm to cover the entire areas in Raiyani East, West, and Kiawamatu Lot 1,220,000 1 1,220,000 E. Capital Works Line Extension from Kiambururu to Kwa-Maiko town Lay 5km of assorted sizes to cover new line extensions Lay 4km of DN 90mm and DN 110mm to cover line extensions to Kwa Maiko. Lot 2,500,000 1 2,500,000 TOTAL 10,790,000 FY 2027/2028 Targetted Investment Project Area Size Descriptions Uni t Unit Cost Quantit y Cost (Ksh) A. Regional Master meters Githiga Master Meters 6-Inches 9001 Iso certified, Class C, Material Brass No 240,000 5 1,200,000 B.NRW Reduction Plan To reduce NRW from 57% to 54% 15 mm dia Meters Purchase of consumer meters No 4,000 1,300 5,200,000 C. Rehabilitation of Service Lines Rehabilitation of Kiambururu Transmission and distribution line. Lay of assorted distribution lines ranging from DN 32mm to 160mm to rehabilitate the existing distribution main in Kiambururu Lay 1km of DN 160 and 3km of DN 110mm, and 2 km of DN 63mm to rehabilitate Kiambururu distribution main in the region Lot 6,901,900 1 6,901,900 D. Capital Works Rehabilitation and Extension of water pipeline from Mweji to Komothai to restore water supply from Kiameru treatment Plant Rehabilitation of 11.2km distribution from aged PVC pipes to HDPE pipe Rehabilitation of 6km distribution from aged PVC pipes to HDPE pipes ranging from DN 90 mm to DN 160mm Lot 6,206,900 1 6,206,900 3008 3008 E. Solarization Borehole at Thakwa Purchase and Instalation ;20kW + 70kWh Solar Hybrid Solution 1No. 20kW 3PH High Voltage Hybrid Inverter; Lithium Iron Phosphate batteries, to provide storage of around 65kWh of storage; Solar Array of 29kWp Lot 5,630,127 1 5,630,127 TOTAL 25,138,927 FY 2028/2029 Targetted Investment Project Area Size Descriptions Uni t Unit Cost Quantit y Cost (Ksh) A. Regional Master meters Thuita & Matimbei Master Meters 2-Inches. Volumetric Meter No 40,000 10 400,000 Kiambururu & Kamburu Meters 2-Inches Volumetric Meter No 40,000 12 480,000 Nginduri & Mbari Ya Aregi Meters 2-Inches Volumetric Meter No 40,000 10 400,000 Komothai & Kamahia Meters 2 -inches Volumetric Meter No 40,000 16 640,000 B.NRW Reduction Plan To reduce NRW from 54% to 50% 15 mm dia Meters Purchase of consumer meters No 4,000 1,400 5,600,000 C. Rehabilitation of Service Lines Rehabilitation of Kambara Transmission and distribution line. Lay of assorted distribution lines ranging from DN 110mm and DN 90mm to rehabilitate the existing distribution main in Kambara line to replace aged PVC pipeline Lay 1km of DN 160 and 3km of DN 110mm, and 2 km of DN 63mm to rehabilitate Kiambururu distribution main in the region Lot 5,476,600 1 5,476,600 D. Solarization 3Borehole Pumps (5.5kw,7.5kw and 5.5kw) and the Office Block Purchase and Installation ;100 kW + 240kWh Solar Hybrid Solution 2No. 50kW 3PH High Voltage Hybrid Inverter; Lithium Iron Phosphate batteries, to provide storage of around 100kWh of storage.; Solar Array of 119kWp Lot 17,705,72 1 17,705,728 E. Integrated Billing System Billing and Customer Relationship Management Modules Billing Module with the following components: Meter Reading APP, Customer Self-service app, Billing & CRM, Meter reading APP, Maji APP & USSD, Customer Self- service app Bank & Mpesa Integration; Development, Customization & Deployment Fee, Data Migration, and training fee Lot 8,114,200 1 8,114,200 TOTAL 38,816,528 Dated the 29th May, 2026. RICHARD CHERUIYOT, MR/7804409 Ag. C.E.O., Water Services Regulatory Board.