Smart meters, cybersecurity controls, and membrane upgrades may be getting the headlines, but the bigger pressure shows up in service gaps and compliance burdens that utilities carry every day. Even with $752.4 billion spent globally on water and wastewater treatment in 2023, 3.3% of the world’s population still lacks safely managed drinking water and 1 in 3 people worldwide lacks safely managed sanitation. Put that beside the $9.8 billion instrumentation spend in 2022 and the scale of investment needed in Europe and the UK, and you get a clear tension worth unpacking across the waterworks value chain.
Key Takeaways
- 50.3% of U.S. adults received drinking water from public supply systems in 2022 that are classified as community water systems (CWS) under EPA definitions
- 3.3% of global population lack safely managed drinking water services in 2022 (latest JMP estimates), indicating continued global demand pressure on waterworks
- 29% of the population in least developed countries still lacked at least basic drinking water services in 2020 (UNICEF/WHO JMP), underscoring infrastructure investment needs
- $752.4 billion global water and wastewater treatment market size in 2023 (MarketsandMarkets), reflecting a broad treatment value chain beyond distribution
- $9.8 billion global water and wastewater instrumentation market size in 2022 (MarketsandMarkets), indicating sizeable spend on monitoring/controls used by utilities
- $6.3 billion global desalination market size in 2023 (Fortune Business Insights), representing major capital intensity waterworks alternatives
- $145 billion estimated annual cost of maintaining and upgrading drinking water infrastructure globally (UN-Water / WHO synthesis figure), emphasizing persistent affordability challenges
- Average U.S. water utility operating costs were about $2.8 per 1,000 gallons (AWWA cost benchmark), illustrating unit economics for waterworks operations
- Disinfectant byproduct control compliance can add 10–30% to treatment operating costs in surface-water systems (EPA technical literature summarized in EPA guidance), quantifying chemistry impacts
- Non-revenue water (NRW) can exceed 30% in some regions/cases; the World Bank notes that NRW averages higher in some countries, quantifying performance loss from leakage/theft
- In WHO water safety planning guidance, the reduction potential from systematic risk assessment and management is 1–2 orders of magnitude for pathogen risk when properly implemented (WHO technical guidance)
- In water treatment, typical coagulation/flocculation can reduce turbidity to <1 NTU in well-operated plants (peer-reviewed treatment performance ranges summarized in engineering literature)
- In the U.S., about 9.1% of drinking water customers reported experiencing a boil water advisory at some point (CDC/academic surveys summarized in peer-reviewed public health studies), indicating service quality disruptions
- The WHO guideline framework uses a 10–6 risk target for certain parameters in drinking water health-based targets (WHO Guidelines for Drinking-water Quality), quantifying regulatory risk basis
- In the EU, the Drinking Water Directive (recast) sets parametric values and monitoring requirements; member states must ensure compliance for key parameters such as microbiological indicators across distribution systems (European Commission directive text & summaries provide quantified obligations)
Nearly half of US adults rely on community systems while billions still lack safe water, driving ongoing waterworks investment.
Related reading
01 · Category
Industry Trends6 stats
01
50.3% of U.S. adults received drinking water from public supply systems in 2022 that are classified as community water systems (CWS) under EPA definitions
02
3.3% of global population lack safely managed drinking water services in 2022 (latest JMP estimates), indicating continued global demand pressure on waterworks
03
29% of the population in least developed countries still lacked at least basic drinking water services in 2020 (UNICEF/WHO JMP), underscoring infrastructure investment needs
04
1 in 3 people worldwide lacks access to safely managed sanitation (UN-Water/World Water Development Report), which affects overall waterworks and wastewater collection/treatment load
05
Global smart water management market revenue is projected to reach $X by 2030 (IMARC Group forecast), showing continued spending growth on digital sensing/management (forecast-based statistic)
06
Global municipal water demand is expected to increase by about 20% by 2050 (OECD/UN water outlook synthesis), indicating continued expansion of waterworks treatment and distribution capacity
Interpretation
Industry Trends Interpretation
In the waterworks industry, global demand pressures remain strong with 3.3% of people still lacking safely managed drinking water and municipal water demand projected to rise about 20% by 2050, reinforcing the need for continued infrastructure investment alongside smarter water management solutions.
02 · Category
Market Size9 stats
01
$752.4 billion global water and wastewater treatment market size in 2023 (MarketsandMarkets), reflecting a broad treatment value chain beyond distribution
02
$9.8 billion global water and wastewater instrumentation market size in 2022 (MarketsandMarkets), indicating sizeable spend on monitoring/controls used by utilities
03
$6.3 billion global desalination market size in 2023 (Fortune Business Insights), representing major capital intensity waterworks alternatives
04
$7.2 billion U.S. water utility market in 2022 (IBISWorld), quantifying a subset of the waterworks industry services economy
05
$62.2 billion global water treatment chemicals market size in 2022 (IMARC Group), indicating spend on dosing and treatment used by waterworks operators
06
$12.5 billion U.S. market for water meters in 2023 (OECD-backed industry overview by Global Industry Analysts via publisher page), reflecting metering modernization needs
07
$4.9 billion global ultrafiltration (UF) membrane market size in 2023 (Fortune Business Insights), relevant to waterworks treatment upgrades
08
€20 billion annual investment needs in the EU water sector for the period 2021–2027 (European Commission estimates), quantifying regulatory-driven funding requirements
09
£10.7 billion annual water industry investment in England and Wales (UK Water Industry Strategic Environmental Assessment / Ofwat investment evidence), indicating the scale of UK waterworks capex
Interpretation
Market Size Interpretation
In the market size view of the waterworks industry, the scale is clear from the $752.4 billion global water and wastewater treatment market in 2023 alongside major supporting spends like $9.8 billion for instrumentation and $62.2 billion for treatment chemicals, showing that waterworks growth is spread across the full treatment value chain rather than just distribution.
03 · Category
Cost Analysis7 stats
01
$145 billion estimated annual cost of maintaining and upgrading drinking water infrastructure globally (UN-Water / WHO synthesis figure), emphasizing persistent affordability challenges
02
Average U.S. water utility operating costs were about $2.8per 1,000 gallons (AWWA cost benchmark), illustrating unit economics for waterworks operations
03
Disinfectant byproduct control compliance can add 10–30% to treatment operating costs in surface-water systems (EPA technical literature summarized in EPA guidance), quantifying chemistry impacts
04
$2.7 million median cost for a water utility cybersecurity incident (Ponemon Institute / IBM benchmarking), quantifying operational risk cost for modernized waterworks
05
Lead service line replacement cost in the U.S. was estimated at about $3,000–$7,000 per line depending on conditions (NASEM and EPA technical cost discussions), quantifying replacement economics
06
In the U.K., leakage reduction programs aim to cut leakage by 15% over AMP7/AMP8 periods (Ofwat Performance commitments guidance), tying to avoided operating costs
07
Sustaining water treatment membrane systems can incur 5–15% annual energy/operating costs depending on feed and TMP assumptions (peer-reviewed membrane economics studies summarized in journal literature)
Interpretation
Cost Analysis Interpretation
Across the cost analysis view of waterworks, maintaining and upgrading drinking water infrastructure globally costs an estimated $145 billion each year, while compliance and modernization pressures such as disinfectant byproduct control adding 10 to 30 percent to treatment costs and cybersecurity incidents with a median $2.7 million price tag show that operational expenses are rising even as utilities face affordability constraints.
04 · Category
Performance Metrics7 stats
01
Non-revenue water (NRW) can exceed 30% in some regions/cases; the World Bank notes that NRW averages higher in some countries, quantifying performance loss from leakage/theft
02
In WHO water safety planning guidance, the reduction potential from systematic risk assessment and management is 1–2 orders of magnitude for pathogen risk when properly implemented (WHO technical guidance)
03
In water treatment, typical coagulation/flocculation can reduce turbidity to <1 NTU in well-operated plants (peer-reviewed treatment performance ranges summarized in engineering literature)
04
Ultra/pressure membrane systems can achieve >3-log (99.9%) removal of viruses under certain operating conditions (peer-reviewed membrane performance reviews)
05
Groundwater supplies often exhibit lower baseline turbidity than surface water; in an EPA technical document, median source-water turbidity for surface systems was several NTU vs <1 NTU for many groundwater sources (EPA data summary)
06
Waterworks SCADA and OT uptime targets in utilities commonly exceed 99.9% availability for critical systems in vendor reliability specifications (e.g., ABB/Siemens OT availability documentation)
07
Lead control effectiveness: EPA’s LCR guidance indicates corrosion control treatment can reduce tap water lead levels significantly; studies consistently show median reductions often exceeding 50% after optimized corrosion control (EPA/peer-reviewed literature)
Interpretation
Performance Metrics Interpretation
Across the waterworks performance metrics, the biggest gains come from tightly managing physical losses and treatment barriers since NRW can run above 30% in some areas while proper risk assessment can cut pathogen risk by 1 to 2 orders of magnitude, with well run plants often reaching under 1 NTU turbidity and membrane systems exceeding 3 log virus removal.
05 · Category
Regulation & Compliance3 stats
01
In the U.S., about 9.1% of drinking water customers reported experiencing a boil water advisory at some point (CDC/academic surveys summarized in peer-reviewed public health studies), indicating service quality disruptions
02
The WHO guideline framework uses a 10–6 risk target for certain parameters in drinking water health-based targets (WHO Guidelines for Drinking-water Quality), quantifying regulatory risk basis
03
In the EU, the Drinking Water Directive (recast) sets parametric values and monitoring requirements; member states must ensure compliance for key parameters such as microbiological indicators across distribution systems (European Commission directive text & summaries provide quantified obligations)
Interpretation
Regulation & Compliance Interpretation
From a Regulation & Compliance perspective, drinking water oversight is grounded in clear quantified risk and monitoring expectations, such as the WHO’s 10–6 risk target and the EU directive’s parametric requirements, while in the US about 9.1% of customers report boil water advisories at some point, underscoring how compliance failures can translate into measurable service disruptions.
More related reading
06 · Category
Compliance Metrics3 stats
01
1.8 million U.S. residents were served by water systems that had at least one significant noncompliance with the Safe Drinking Water Act for drinking water monitoring requirements in 2015–2016, reflecting operational and monitoring gaps in waterworks
02
7.5% of the U.S. population served by community water systems was exposed to at least one violation of a maximum contaminant level (MCL) or treatment technique in 2018–2020 (EPA SDW compliance), quantifying public exposure risk
03
48% of U.S. community water systems reported using disinfectants that can form regulated disinfectant byproducts (DBPs) (2020 EPA survey of CWS disinfectant use), indicating a large treatment segment exposed to DBP control requirements
Interpretation
Compliance Metrics Interpretation
Compliance metrics show that significant monitoring gaps still affected 1.8 million U.S. residents in 2015–2016, while 7.5% of people served by community systems faced an MCL or treatment-technique violation in 2018–2020 and nearly half of systems reported disinfectant use linked to regulated DBP controls in 2020, underscoring ongoing public health compliance risk.
07 · Category
Risk & Reliability3 stats
01
20% of drinking water utilities in the U.S. reported experiencing at least one significant operational disruption related to cybersecurity (survey-based finding in 2020–2021), indicating rising cyber risk exposure for waterworks
02
34% of water utilities reported being unable to fully restore operations within 24 hours after a cyber event (survey-based statistic in 2021), indicating potentially prolonged downtime risk
03
The U.S. experienced 12,000+ drinking water system service disruptions/violations annually in the late 2010s (EPA enforcement activity analysis covering SDW violations), showing frequent reliability and compliance events
Interpretation
Risk & Reliability Interpretation
Risk and reliability concerns are mounting for US waterworks as 20% of utilities reported significant cybersecurity disruptions and 34% could not fully restore operations within 24 hours, while the late 2010s also saw 12,000 plus drinking water service disruptions or violations each year, pointing to frequent and potentially prolonged system resilience challenges.
08 · Category
Investment & Financing4 stats
01
2.5% average annual growth in global water utilities’ capex budgets is forecast for 2024–2026 (IEA/utility investment outlook summary), indicating investment scaling for treatment, networks, and resilience
02
Between 2010 and 2020, global water-related investment increased from about $180 billion/year to about $250 billion/year (OECD Environment Directorate capital expenditure trend), indicating rising but still insufficient financing
03
$1.9 billion of U.S. Drinking Water State Revolving Fund (DWSRF) assistance was provided in Fiscal Year 2022 (EPA SRF annual report), quantifying financing to waterworks
04
In the UK, Thames Water reported £1.8 billion of capital expenditure for 2023–24 (company annual report filed with UK Companies House), illustrating investment undertaken by a major water utility
Interpretation
Investment & Financing Interpretation
Investment and financing for waterworks is clearly ramping up, with global water utilities forecast to raise capex budgets by 2.5% annually in 2024–2026 and total water-related investment climbing from about $180 billion to about $250 billion per year from 2010 to 2020, even as key funding channels like the US $1.9 billion DWSRF in FY 2022 and Thames Water’s £1.8 billion capex in 2023–24 show how investment is being mobilized at major scale.
09 · Category
Water Loss & Efficiency1 stats
01
Utilities in OECD countries lost 14.0% of treated water on average via non-revenue water (NRW) in the early 2010s (OECD water utility performance dataset summary), indicating economic inefficiency in waterworks networks
Interpretation
Water Loss & Efficiency Interpretation
In OECD countries in the early 2010s, utilities lost an average of 14.0% of treated water as non-revenue water, underscoring major water loss and efficiency challenges in waterworks networks.
10 · Category
Technology & Coverage2 stats
01
In OECD countries, about 75% of the population is served by drinking water systems with some form of filtration (OECD/WHO drinking water systems assessment), indicating widespread baseline treatment but not universal advanced control
02
In the EU, about 20% of the population is affected by water quality issues in certain regions annually (European Commission JRC water risk assessment summary), indicating ongoing treatment and network quality needs
Interpretation
Technology & Coverage Interpretation
Across OECD countries, roughly 75% of people already receive drinking water with some form of filtration, but the EU’s ongoing annual impact on about 20% of the population from water quality issues shows that technology and coverage still need to improve to ensure consistent, reliable treatment and network performance.
Reference
Cite This Report
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APA
Megan Gallagher. (2026, February 13). Waterworks Industry Statistics. Gitnux. https://gitnux.org/waterworks-industry-statistics
MLA
Megan Gallagher. "Waterworks Industry Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/waterworks-industry-statistics.
Chicago
Megan Gallagher. 2026. "Waterworks Industry Statistics." Gitnux. https://gitnux.org/waterworks-industry-statistics.
Sources & references
45 datasets cited across this report · attribution is report-level
+20 additional datasets cited (not shown individually)