BENCHMARKING DRINKING WATER
Availability to customers
works so that the water supply's down
time to consumers is as short as possible.
They can also notify consumers via an SMS
notification, or the like, to minimise the inconvenience of not having water in the tap.
Security of supply, ensuring that water is always
coming out of the consumers' taps, and making
sure it is always clean are the main objectives
of a drinking water company.
Security of supply can be affected on many
fronts, for example:
Companies can ensure that they have sufficient reserve capacity to supply water if one
of the company's waterworks goes down or
becomes affected by contamination. This
may have to do with ring connections and
overcapacity between works or an emergency connection to another company,
which can supplement water in case of
an accident.
Good pipeline maintenance standards to
avoid unnecessary shut down of the water
supply for customers, for example in case
of bursts or leakages.
For example, in the event of a power failure,
water towers can continue to supply customers for a period of time using gravity, or
the company can set up emergency power
systems for the pumps in the water stations
so that the pressure in the pipelines can be
maintained.
Segmentation and circular networks within
the distribution network so that repairs
can result in shut down for the smallest
number of customers possible.
Companies can also plan their maintenance
There is no clear definition or calculation
method for measuring security of supply, but
one way of measuring the impact of the company's work is to measure the availability of water
to the customer. Availability is an expression
of the proportion of the year the customer has
tap water. If the companies, , record the length
of time that the valve has been closed and how
many households have been affected by this
each time they close a valve that shuts down
the water supply to one or more customers, an
average number of interruption minutes per
households can be calculated. The records can
be divided into two types:
Unplanned interruptions are defined as an
interruption to the water supply for one or
more customers where the company has
not notified the customer within 48 hours
before the interruption. Unplanned works
are works, which the company was not
aware of 48 hours in advance.
Planned interruptions where the company
has informed customers in advance that
the water will be shut down in connection
with planned renovation of the pipelines,
replacement of valves etc. Planned works
99,975
99,9999
99,9989
99,9987
99,9981
99,9978
99,9971
99,9973
99,9963
99,9956
99,9957
99,9944
99,9938
99,9922
99,9901
99,9891
99,9873
99,980
99,9836
99,985
99,9848
99,990
99,9802
% Security of water supply, %
99,995
99,9948
100,000
99,9933
WATER SUPPLY SECURITY, 2018
99,970
99,965
99,960
99,955
Lolland
Simpelt gns.
Fr. Havn
Verdo
Aarhus Vand
Bornholm
Hjørring
DINForsyning
Fors Holbæk
Thisted
Fors Roskilde
VCS
Næstved
Fredensborg
Skanderborg
Kerteminde
TREFOR Vand A/S
Grindsted
Tønder
Halsnæs
Aalborg
WATER IN FIGURES 2019
Unplanned interruptions are one of the parameters included in the mandatory performance
benchmarking carried out by the Danish Environmental Protection Agency based on a
requirement in the Danish Water Sector Act. In
addition, several water companies have started
to record the planned interruptions, which
means that the average availability of water
to customers can be determined. Availability
to the customer can be calculated by taking
the total number of minutes in one year and
subtracting the average number of minutes/
households where there have been unplanned
interruptions, as well as the number of minutes/mailing address where there have been
scheduled shut downs of the water supply.
The average availability of the 20 companies
participating in this calculation in DANVA
Benchmarking is 99.9933%, which means that
customers have only had to be without water
on average for 35 minutes a year.
Renewal of the pipeline supply
network
The pipeline network's renewal rate shows what
percentage of the pipeline network was replaced
in the last year compared to the average per year
for the past 10 years. There are many factors,
such as materials, geological conditions, surface
load and age that influence when the pipeline
network is renewed. Another important factor
is that many infrastructure and construction
projects often require water companies to relocate their water pipelines even if they are not
at the end of their service life.
Dry summer increased the number
of bursts
99,950
22
and associated shutdowns of water in residential units are known more than 48 hours
in advance and, most often, even several
weeks/months in advance.
Repairing pipeline bursts is one of the major
operational tasks that drinking water companies focus on. A burst in the network will probably mean that there will be customers who do
not have water in their taps, and therefore, the
companies of course try to reduce the number
of bursts and the duration of the interruption.
There is a substantial difference in the number
of bursts that are registered on the pipeline
network among the participating companies.
Bursts are divided into two categories:
WATER IN FIGURES 2019 DANVA STATISTICS & BENCHMARKING Denmark
LEADER TEXT: CARL-EMIL LARSEN/ PHOTO: DANVA Wastewater heat pumps take heat production to a new level W ater companies act efficiently and create value for households and industry. This document shows the water sector's key figures compiled by DANVA in Water in figures 2019. We will also review
105 WATER CONSUMPTION litres is the average amount of water a person uses per day in the household. Selected rules, national plans and reforms that have had an impact on the price and water consumption of a family: 1987: Environmental Plan for Water I the plan was intended to protect the aquati
WATER PRICE How much does water cost? The price of water is not the same throughout the country. On the one hand, there are structural differences such as geological conditions, different customer bases and large differences in investment needs, and on the other hand, price composition may vary fro
PHOTO: COLOURBOX WATER PRICE Information about water prices How much does water cost? The price of water depends on which water company you are affiliated with. Contact your local water company to get your water prices. On average, a litre of water costs 0.93 cents. What does the water price cons
WATER PRICE PHOTO: HERNING VAND Water price composition 6 WATER IN FIGURES 2019 Amount for drinking water 3,14 €/m3 water and wastewater, the distribution is as follows: The treatment and supply of clean drinking water includes groundwater protection, treatment and supply of drinking water. T
PHOTO: COLOURBOX WATER PRICE AVERAGE HOUSEHOLD COSTS FOR WATER, 2007 - 2018 €/m3 (2018 price) 800 700 600 500 400 300 200 100 0 2007 2008 Drinking water 2009 2010 Wastewater 2011 2012 2013 2014 2015 2016 2017 2018 VAT and taxes The estimate is for an average family of 2.15 people wi
WATER PRICE Debt in the water sector Water companies (drinking and wastewater companies) have to take loans more often when investing in new plants, pipelines and other assets than if it is up to the authorities. It is also evident from the graph below that the debt of water companies with KommuneK
WATER PRICE THREE-STEP TARIFFS MODEL, 2018 Million m3 water sold in the sewerage catchment area LEVEL 2 Water consumption: 500 m3-20,000 m3 The cubic metre tariff is LEVEL 3 Water consumption: Over 20,000 m 3 The cubic metre tariff is 2014 4% lower than level 1 12% lower than level 1 2015 8% l
WATER IN FIGURES 2019 TEXT: JESPER WITH, JOURNALIST/ PHOTO: COLOURBOX After the court case on taxation of water and wastewater companies: More than € 134 millions is on its way back to the water and wastewater companies After a nearly 10-year fight, DANVA and the water and wastewater companies won
WATER IN FIGURES 2019 etc. This value has an impact on the ability of companies to make depreciations and therefore on the amount of tax they are required to pay. But since the water wastewater companies are break-even companies, in principle they do not generate profits, nor have they ever been tr
WATER IN FIGURES 2019 PHOTO: TREFOR VAND The Danish water sector All drinking water in Denmark comes exclusively from groundwater, with the exception of a small desalination plant on Christiansø. In 2016, the total pumped water volume for public waterworks was 373 million m3/year 1 ), with DANVA m
WATER IN FIGURES 2019 ECONOMIC DEVELOPMENT The following economic development graphs include all drinking water and wastewater companies covered under the Danish Water Sector Act and which have a charged water volume over 800,000 m3. ACTUAL OPERATING COST DRINKING WATER ACTUAL OPERATING COST WAS
BENCHMARKING DRINKING WATER DRINKING WATER COMPANIES in DANVA Statistics & Benchmarking In 2019, 67 drinking water companies reported data to DANVA Statistics & Benchmarking. The figures shown apply to 2018. Together, the companies have more than 1,750 water abstraction wells, comprising 154 catchm
BENCHMARKING DRINKING WATER ACTUAL OPERATING COSTS, 2018 0 be invested over the next 2 years, where the forecast for 2019 is a 30% increase compared to the 2018 level. The distribution between costs and investments In 2018, drinking water companies spent 33% of their actual operating costs on wat
BENCHMARKING DRINKING WATER PHOTO: VANDCENTER SYD The water loss curve takes a hit due to last summer's drought The Danish drinking water companies can be characterised as having a very low level of water loss in the pipelines. For the 50-52 drinking water companies that have participated in DANVA
BENCHMARKING DRINKING WATER SHARE OF REMOTE METER READING The number of remotely read meters is steadily increasing The water companies' switch from the manual reading of water meters to remotely read meters provides solid data for the detection of leakage and reliable calculations of water consum
BENCHMARKING DRINKING WATER PHOTO: COLOURBOX NON-REVENUE WATER (WATER LOSS), 2018 m3/km/day Non-Revenue water (water loss) Drinking water companies' calculation of water loss, also known as non-revenue water shows significant differences between companies. The companies' rankings depend on the me
PHOTO: AARHUS VAND A/S BENCHMARKING DRINKING WATER Infrastructure Leak Index (ILI) The real water loss can be more accurately calculated and compared through the calculation of the Infrastructure Leak Index (ILI). It is an international water loss performance indicator developed by the Internation
WATER IN FIGURES TEXT: JESPER WITH, JOURNALIST/ PHOTO: TREFOR VAND AND COLOURBOX DNA ANALYSIS provides new opportunities in water supply TREFOR Vand has used a new method that, through DNA analysis, can quickly find leaks where tree roots have found their way into a drinking water line. This save
XXX ness experiences. They reviewed the pictures and found 10 possible willow trees of which 3 could be the source of the penetrating tree root. So TREFOR Vand sent samples of the three willow trees for new DNA analyses. Only one tree matched all the parameters. It was found on the first try All w
BENCHMARKING DRINKING WATER Availability to customers works so that the water supply's down time to consumers is as short as possible. They can also notify consumers via an SMS notification, or the like, to minimise the inconvenience of not having water in the tap. Security of supply, ensuring th
BENCHMARKING DRINKING WATER Self-arising bursts in the pipeline network or house/building connections, where the pipelines age, pipe material, drilling saddles, geology and the quality of work performed are often the cause of the burst. Bursts due to external conditions, where the burst is often
BENCHMARKING DRINKING WATER from the waterworks to the customer's water meter. The bulk of the pipeline belongs to the water company. The last few meters from the property boundary to the water meter, called the ground line, are owned by the landowner. The 74 companies participating in DANVA Statis
BENCHMARKING DRINKING WATER results from the accredited analyses show that, based on 13,906 samples, 98.9% of the microbiological control samples taken fall within the threshold limits for all quality requirements. If only one analytical parameter on a water sample exceeds the quality requirements,
WATER IN FIGURES 2019 TEXT: JESPER WITH, JOURNALIST/ PHOTO: VANDCENTER SYD VandCenter Syd: The aim is absolute sustainability VandCenter Syd (VCS Denmark) is the first Danish water company to carry out an absolute sustainability assessment that takes into account a wide range of possible environm
WATER IN FIGURES 2019 a lot of ethical dilemmas. However, we are now utilising the assessment in our strategy process, in which we set our long-term goals. The analysis has let us know several things that we were not previously aware of. For example, we learned that methane emissions from our sewer
WATER IN FIGURES 2019 28 WATER IN FIGURES 2019 PHOTO: COLOURBOX
WATER IN FIGURES 2019 IT Y QUAL N ATIO EDUC HIPS PARTNERS E TO ACHIEV THE GOAL CLIMATE ACTION SU S AN TAIN D C AB OM LE MU CIT NI IES TIE S More and more Danish water and wastewater companies are using the sustainable development goals (SDGs) as a framework for creating better results for the env
BENCHMARKING WASTEWATER WASTEWATER COMPANIES in DANVA Statistics and Benchmarking In 2019, 87 wastewater companies reported data to DANVA Statistics and Benchmarking. The reported figures are for 2018. Together, the companies provide services to approximately 4.99 million people and operate 471 tre
BENCHMARKING WASTEWATER ACTUAL OPERATING COSTS, 2018 to invest due to economic regulation, even though there are a large number of climate investments that should be implemented. Breakdown of expenditure and investment Wastewater companies spend, on average, 34% of their actual operating costs on
BENCHMARKING WASTEWATER FOCUS ON DISCHARGE FROM OVERFLOW SPILLWAYS There is an increased focus on discharge from overflow spillways on wastewater companies combined sewerage, and the new government is also announcing actions to improve the knowledge regarding overflow. The governments goal is to im
BENCHMARKING WASTEWATER report's statement that the reservoir volume of the combined sewers has risen (15%) even though the area has been reduced. Separate sewerage Wastewater companies may choose to expand the existing combined sewer network with larger pipelines and wastewater basins in order to
BENCHMARKING WASTEWATER Energy consumed by the wastewater companies The consumption of energy by wastewater companies is divided into energy consumption in the transport network and energy consumption at the wastewater treatment plants, respectively. This has been done in order to produce appropria
PHOTO: AARHUS VAND A/S NET AND GROSS ENERGY FOR TREATMENT, 2018 Kalundborg BIOFOS LYN VCS Aalborg Vejle Aarhus Vand Horsens Fredericia DINForsyning Randers Hørsholm Herning Køge Mariagerfj. AquaDjurs Billund Kerteminde Sønderborg Odder Fr. Havn Rudersdal Skanderborg Hjørring Lolland Syddjurs Bornho
WATER IN FIGURES 2019 TEXT: ANNELINE HØJRUP/ PHOTO: MORSØ FORSYNING AND KALUNDBORG FORSYNING HEAT PUMPS provide new energy to the water sector HANS-MARTIN FRIIS MØLLER CEO, KALUNDBORG FORSYNING VILLY KRISTENSEN OPERATIONS MANAGER NYKØBING VANDVÆRK M orsø Forsyning and Kalundborg Forsyning are
WATER IN FIGURES 2019 We maintain our budgets, and the fact that we can sell surplus heat from the wastewater means that the cost of wastewater treatment is reduced. In this way, the heat pump is of benefit to both the businesses and the citizens of Kalundborg. Heat pump provides colder drinking w
BENCHMARKING WASTEWATER Need for new solutions to remove extraneous water Extraneous water is present, to varying degrees, among the various wastewater companies. Conditions such as the origin of the sewerage system, groundwater level, soil conditions, rainfall and the state of the sewerage system
Loads at the wastewater treatment plants BENCHMARKING WASTEWATER PHOTO: VANDCENTER SYD There is a very large variation in the organic matter content of the wastewater flowing to the wastewater treatment plants. Companies such as slaughterhouses or breweries emit large quantities of organic matter
BENCHMARKING WASTEWATER Wastewater companies' treatment of sludge When the Danes wastewater has been led to a treatment plant, treated and subsequently discharged to a recipient, the companies are left with the biological sludge, which is a surplus product from the treatment. The sludge treatment a
PHOTO: COLOURBOX waste. The sewage companies costs for treating sludge in the treatment plants represent approximately 15% of the total operating costs of the wastewater treatment plants. Sludge disposal As a rule, dewatered sludge is disposed of in one of three categories: Sewage sludge that can
DRINKING WATER: BASIC DATA AND KEY FIGURES DRINKING WATER COMPANIES THAT PARTICIPATED IN BENCHMARKING AND STATISTICS 2019 BASIC DATA (DATA FOR 2018) Company Arwos Vand A/S Assens Vandværk A/S Billund Drikkevand A/S Bornholms Energi & Forsyning A/S Brønderslev Vand A/S Inhabitants in the supply
DRINKING WATER: BASIC DATA AND KEY FIGURES PROCESS BENCHMARKING (MAIN KEY FIGURES) Actual operating costs for production, distribution, customer management and general administration in relation to the sold volume of water flow Operating costs of production of water produced at own waterworks Ope
DRINKING WATER: BASIC DATA AND KEY FIGURES DRINKING WATER COMPANIES THAT PARTICIPATED IN BENCHMARKING AND STATISTICS 2019 BASIC DATA (DATA FOR 2018) Inhabitants in the supply area Total quantity of water sold Boreholes (water catchment area) persons m3/year number Lyngby-Taarbæk Vand A/S 5
DRINKING WATER: BASIC DATA AND KEY FIGURES PROCESS BENCHMARKING (MAIN KEY FIGURES) Actual operating costs for production, distribution, customer management and general administration in relation to the sold volume of water flow Operating costs of production of water produced at own waterworks Ope
WASTEWATER: BASIC AND KEY WASTEWATER COMPANIES THAT PARTICIPATED IN BENCHMARKING AND STATISTICS 2019 (DATA FOR 2018) Company BASIC DATA Inhabitants in the catchment area Sewer system (wastewater and rainwater) Amount of water sold in catchment area Treatment plant over 30 PE Inflow volume to
WASTEWATER: BASIC AND KEY PROCESS BENCHMARKING (MAIN KEY FIGURES) Actual operating costs for transport, treatment, customer management, and general administration compared to sold volume of water Operating costs to sewer system related to the amount of water sold in the sewerage catchment area Op
WASTEWATER: BASIC AND KEY WASTEWATER COMPANIES THAT PARTICIPATED IN BENCHMARKING AND STATISTICS 2019 (DATA FOR 2018) Company Kalundborg Spildevandsanlæg A/S BASIC DATA Inhabitants in the catchment area Sewer system (wastewater and rainwater) Amount of water sold in catchment area Treatment pl
WASTEWATER: BASIC AND KEY PROCESS BENCHMARKING (MAIN KEY FIGURES) Actual operating costs for transport, treatment, customer management, and general administration compared to sold volume of water Operating costs to sewer system related to the amount of water sold in the sewerage catchment area Op
WASTEWATER: BASIC AND KEY PHOTO: SAMN FORSYNING WASTEWATER COMPANIES THAT PARTICIPATED IN BENCHMARKING AND STATISTICS 2019 (DATA FOR 2018) Company Svendborg Spildevand A/S BASIC DATA Inhabitants in the catchment area Sewer system (wastewater and rainwater) Amount of water sold in catchment ar
WASTEWATER: BASIC AND KEY PROCESS BENCHMARKING (MAIN KEY FIGURES) Actual operating costs for transport, treatment, customer management, and general administration compared to sold volume of water Operating costs to sewer system related to the amount of water sold in the sewerage catchment area Op
KEY FIGURES DANVA, Dansk Vand- og Spildevandsforening (the Danish Water and Wastewater Association), is a national industry and stakeholder organisation for Denmarks drinking water and wastewater companies. Read more about us at www.danva.dk Information Water in Figures is published by: DANVA, Go