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GAZETTE NOTICE NO. 13178
GAZETTE NOTICE NO. 13178
THE WATER ACT
(Cap. 372)
EXTENSION
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 Narok Water and Sewerage Services Company Limited (NARWASSCO).
Narok Water and Sewerage Services Company LTD (NARWASSCO) applied to the Water Services Regulatory Board (WASREB) for a review of water services tariffs for the period 2026/2027 to 2028/2029, as per section 72 (1) (b) of the Water Act 2016.
Public consultation on the NARWASSCO 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 NARWASSCO to improve service delivery, operate sustainably and protect consumer interests by meeting the tariff 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 NARWASSCO 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:
1.0 Approved Tariff Structure
1.1 Water Tariff Structure for the period 2026/2027 to 2028/2029
Consumer Categories Consumption Block (m3) Approved Tariff (KSh./m3)
Domestic/Residential 1-6 140
7-20 155
21-50 165
51-100 175
101-300 185
>300 200
Multi-Dwelling Units Per M3 155
Commercial/Industrial 1-50 150
51-100 165
14th August, 2026 THE KENYA GAZETTE
Consumer Categories Consumption Block (m3) Approved Tariff (KSh./m3)
101-300 180
>300 200
Government/Institutions 1-50 150
51-100 165
101-300 180
>300 200
Public Schools, Colleges, and
Universities
1-600 150
601-1200 160
>1200m3 180
Unique Consumer Categories Water Bowsing Points Per m3 155
Water Kiosks Per m3 70
Customers with non-functional meters shall be billed based on the average of the last three months’ bills.
1.4 Sewerage Tariff Structure for the period 2026/2027 to 2028/2029.
1.4.1 Consumers with a Water Connection
(e) Sewerage will be charged at 75% of the water volumes, billed at the rates specified in (1.1) above for all customer categories.
Consumer Categories Consumption Block (m3) Approved Tariff (KSh. /m3)
Domestic/Residential 1-6 125
7-20 135
21-50 145
51-100 155
101-300 165
>300 180
Multi-Dwelling Units Per M3 135
Commercial/Industrial 1-50 135
51-100 145
101-300 165
>300 180
Government/Institutions 1-50 135
51-100 145
101-300 165
>300 180
Public Schools, Colleges, and
Universities
1-600 135
601-1200 145
>1200m3 170
(f) Disconnected water accounts shall be charged on the average of the last three months’ sewerage charges before disconnection
1.2.2 Consumers without a water connection
Sewerage consumers without a water connection shall be charged as follows:
(iii) Single dwelling domestic unit: KSh. 350 per month.
(iv) 75% of the volume of water consumed as per the metered source of water at the rates specified (in 1.2.1(a)) above.
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 2500
Retail shops less than 10m3 3000
Retail shops with more than 10m3 3,500
Bar and restaurants with less than 15 m3 4000
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 15000
Hotel class “C” and ‘D’ less than 150 m3 18000
Hotel class “C” and ‘D’ more than 150 m3 20,000
Hospitals and Health centres with 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
3990 3990
Item/ Service Charge (KSh.)
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
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 the WSP area for all consumers
Sale of water per M3 at Browsing Point (own tanker) 155
Replacement of stolen or damaged meters 100% of the market cost of the meter
Meter testing on request 500
Special meter reading under customer’s request 500
Sewer Connection- Residential/ Domestic 5,000
Sewer Connection- Commercial, Government, Schools, Universities, and
Colleges
7,500
Sewer Connection- Industrial 15,000
Private sewer unblocking 2,500
Leak detection services 1,000
Sewer Reconnection fee 15,000
Printing of the customer’s statement on their own request 200
For cutting off the supply at the request of the consumer 200
For turning on the supply otherwise 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
Illegal sewer connection- Commercial, Industry, Construction 100,000
Illegal sewer connection- Domestic, Government, Schools, Universities &
Colleges
30,000
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
2.0 Cost Structure
2.1 Cost Summary
Below is the summary of the projected annual cost structure that makes up the total costs to be incurred by NARWASSCO during the tariff period:
Expenditure Item 2025/26 2026/27 2027/28 2028/29
Operations 146,011,784 152,738,114 159,233,990 166,027,742
Maintenance 26,417,774 28,538,663 30,037,096 31,441,454
Regulatory Levy 6,209,000 8,292,467 8,606,021 8,844,221
Total O&M Costs 178,638,558 189,569,244 197,877,107 206,313,417
Investment Costs 2,393,180 3,692,600 4,647,180 2,690,000
Debt Repayment - - - -
Total Costs 181,031,738 193,261,844 202,524,287 209,003,417
Total Billing (KSh.) 148,092,745 207,311,665 215,150,536 221,105,531
Collection Efficiency (%) 95% 95% 95% 95%
Projected Revenue 140,688,108 196,946,081 204,393,009 210,050,254
O &M Cost Coverage 79% 104% 103% 102%
Total Cost Coverage 78% 102% 101% 101%
6.0 Conditions attached to the tariff approval.
The conditions attached to this approval, which shall form part of the license conditions of NARWASSCO, are:
6.1 Service Delivery Conditions attached to the Tariff
Target 2025/2026 2026/2027 2027/2028 2028/2029
Water Coverage (%) 78% 80% 82% 83%
Water quality standards (%) 100% Compliance with Standards
Personnel Expenditure as % of
O&M 35% 34% 33% 33%
Non-Revenue Water 33% 32% 31% 30%
Hours of Supply (Hrs.) 12 13 14 15
14th August, 2026 THE KENYA GAZETTE
Target 2025/2026 2026/2027 2027/2028 2028/2029
Staff per 1000 connections 12 12 11 11
Metering ratio (%) 100% 100% 100% 100%
Collection Efficiency (%) 90% 95% 95% 95%
Resale at Kiosk Regulate resale by kiosk vendors at Ksh. 5 per 20 litres. Tariffs at kiosks must be displayed at strategic points for public awareness
6.2 Annual budgets: The WSP shall adhere to the budgetary levels set in the tariff.
6.3 Surpluses: The surpluses realised during the tariff period shall be used to implement priority service delivery capital projects approved by
WASREB
6.4 Reporting: The utility shall submit to WASREB a quarterly performance report in the format provided.
6.5 Creation of distinct water and sewer cost centres: NARWASSCO will ensure that separate water and sewer cost centres are created and that different records of operations of the two centres are maintained
6.6 Catchment Protection: The utility shall undertake measures to conserve/ protect the catchment areas of their source of water as part of
Corporate Social Responsibility
6.7 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.
6.8 Investments: The utility shall undertake the investments in Appendix 1
4. Penalty notice
4.5 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.
4.6 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: Investments through internally generated funds by Narok Water and Sewerage Services Company Limited
PROPOSED INVESTMENTS FROM INTERNALLY GENERATED FUNDS
Targetted Investment Project Area Guide Size Descriptions Unit Cost Quantity 2026/2027 2027/2028 2028/2029
A. Metering Ilmashariani area
Purchase of 200No Plastic
Water meters
DN15 Plastic
Meters
5,000 200 250,000 250,000 250,000
Procurement of 1No GI
Pipe-dn15, other pipe fittings for water connections, Threading of
GI Pipes, and installations
DN15 Pipes and fittings for customer connections
15,000 200 750,000 750,000 750,000
B. Movable Assets Narok
Scheme and
Ololulunga
Scheme
Purchase of 4 No Motobikes 155cc KIBO 150,000 4 300,000 300,000 -
C. NRW
REDUCTION PLAN
CAPEX Installation of a production meter in Ololulunga
DN100 Production meters
124,750 2 249,500 -
Installation of a DMA meter in the Ilmashariani area
DN100 DMA 167,000 1 167,000 -
Installation of a production meter in suswa area
DN100 DMA 197,000 1 197,000 -
Procure and install a data logger/memory card for
Fanaka and other UFM'S at
NWTP
N/A Production meters
141,840 2 - 283,680 -
Procurement and installation of the Hass line DMA Meter
ND75 DMA 156,800 1 156,800 -
Procurement and installation of the CHAMBAI line
DMA Meter
DN100 DMA 127,000 1 127,000 -
Procure and installation of
Garage line DMA Meter
DN50 DMA 116,800 1 116,800 -
Procurement and installation of the Mwamba line DMA
Meter
DN100 DMA 197,000 1 197,000 -
Procurement and
Installation of Smart meters
DN25 SMART
METERING
40,000 6 240,000 -
3992 3992
Targetted Investment Project Area Guide Size Descriptions Unit Cost Quantity 2026/2027 2027/2028 2028/2029 for major consumers, selected customers, and the water collection point
DN50 SMART
METERING
80,000 2 160,000 -
DN100 SMART
METERING
120,000 2 240,000 -
OPEX Replacement of nonfunctional meters, mainly in the Ololulunga scheme- Already procured
DN15 CUSTOMER
METERS
6,000 50 300,000 -
Procurement and replacement of dilapidated pipes- DN50, to DN100, Upvc PN12.5
DN50 Pipeline 900 250 225,000 -
DN100 Pipeline 1,250 250 - 312,500 -
Measurement of minimum night flow for each DMA per Quarter
N/A DMA 150,000 4 - 600,000 -
D. Water System
Extension
Narok town, Ilmashariani, and
Ololulunga
Procurement and installation of pipelines to new areas
DN100 HDPE
DN100
PN12.5
20 - - 690,000
DN50 HDPE DN50, PN12.6
130 - -
Repair Damaged Maholes and replace them with less
Concrete manholes and covers
Concrete manholes and covers
4,000 150 - 600,000 -
Installation of a new
Manhole
900mm diameter ready- made
Manholes
Manholes 10,500 35 367,500 -
E. Treatment Works Ololulunga Procurement and installation of chemical dozers at
Ololulunga treatment plant
All chemical water dozers
- Aum, SODA, ASH, and Chlorine, 200,000 3 - 600,000 -
Procurement and
Replacement of Filter media at ololulunga treatment plant
- - 1,000,000
Procurement and installation of chemical dozers at
Naroosura Storage Tank
All chemical water dozers
- Aum, SODA ASH, and Chlorine, 200,000 3 600,000 - -
TOTAL 3,692,600 4,647,180 2,690,000
Dated the 14th August, 2026.
RICHARD CHERUIYOT, Ag. Chief Executive Officer, MR/8284338 Water Services Regulatory Board.
Dated the 14th August, 2026.
RICHARD CHERUIYOT,
Ag. Chief Executive Officer, Water Services Regulatory Board.
Extracted Entities (2)
previous_gazette_ref
13178
institution
Sewerage Services Company
Details
- Act / Legislation
- THE WATER ACT
- Reference
- Cap. 372
- Section
- section 72 (1) (b)
- Signed By
- RICHARD CHERUIYOT
- Title
- Ag. Chief Executive Officer, Water Services Regulatory Board
- Date Signed
- 14th August 2026
- Page
- 56
- Extraction Method
- regex
Source Gazette
Vol. CXXVIII No. 140 (SUPPLEMENT)
Published 14th August 2026