- Enforced by
- DWI
- Status
- Repealed
- Penalty ceiling
- Prosecution 1 of 13 obligations carry an unlimited fine. 12 have no criminal penalty — flagged in the list below.
Does it bind you?
Business-side roles with duties under this instrument.
Statutory Undertaker12
Plus 1 duty on the regulator, Crown ministers and public bodies — folded into the section list below.
Other Acts binding the same actors
If a role above is yours, these are the other instruments that most often bind it.
Statutory Undertaker — also bound by 179 other Acts
The Cory Decarbonisation Project Order 2025
120 duties
Water Industry Act 1991
53 duties
What it requires
Regulations creating concrete business duties or carrying penalties, grouped as the instrument is structured. Titles link to the source text — blue means you’re leaving for legislation.gov.uk.
Schedules
Schedules
2 of 6 shown
s.sch003
MONITORING (opens in a new tab)
Regulated
- Monitor water quality parameters and sampling frequenciesStatutory Undertaker
s.sch006
PROGRAMMES OF WORK (opens in a new tab)
Regulated
- Water undertakers must create and maintain water quality improvement programmesStatutory Undertaker
4 other schedules
s.003
Water supply zones
Regulated
- Designate water supply zones and population limits annuallyStatutory Undertaker
s.007
Sampling points
Regulated
- Select water sampling points at randomStatutory Undertaker
s.010
Sampling: further provisions
Regulated
- Perform emergency water sampling if contamination is suspectedStatutory Undertaker
s.014
Sampling at service reservoirs
Regulated
- Perform weekly water sampling at service reservoirsStatutory Undertaker
s.015
Sampling: new sources
Regulated
- Sample and test water from new or long-unused sourcesStatutory Undertaker
s.019
Action by Secretary of State
Regulated
Other duties (1) — Crown / regulator
- Secretary of State may require water companies to fix supply failuresCrown / Minister / Government department
s.028
Procedure following risk assessment, and prohibition of supply
Prosecution
- Submit risk assessment reports and comply with cryptosporidium safety requirementsStatutory Undertaker
Unlimited fine
s.034
Maintenance of records
Regulated
- Maintain and update water supply zone recordsStatutory Undertaker
s.035
Provision of information
Regulated
- Provide water quality records and annual reports to customers and authoritiesStatutory Undertaker
s.036
Publication of information
Regulated
- Publish and distribute an annual water quality reportStatutory Undertaker
s.041
Transitional provision: programmes of work
Regulated
- Submit and implement a water quality improvement programmeStatutory Undertaker
32 other provisions
s.001
Citation, commencement and application
s.002
Interpretation
s.004
Wholesomeness
s.005
Interpretation and application of Part IV
s.006
Monitoring: general provisions
s.008
Authorisation of supply points
s.009
Numbers of samples
s.011
Interpretation of Part V
s.012
Sampling for particular substances and parameters
s.013
Sampling at treatment works
s.016
Collection and analysis of samples
s.017
Investigations: Schedule 1 parameters
s.018
Investigations: indicator parameters
s.020
Authorisation of temporary supply of water that is not wholesome
s.021
Authorisations: terms and conditions
s.022
Authorisations: other limitations
s.023
Publicity for authorisations
s.024
Revocation and modification of authorisations
s.025
Interpretation
s.026
Treatment of raw water
s.027
Risk assessment for cryptosporidium
s.029
Treatment for cryptosporidium
s.030
Contamination from pipes
s.031
Application and introduction of substances and products
s.032
Use of processes
s.033
Offences
s.037
Application and interpretation
s.038
Duties of local authorities: supplementary provision
s.039
Contraventions by water undertakers
s.040
Amendment of the Water Supply (Water Quality) Regulations 1989
s.042
Transitional provision: authorisations
s.043
Revocation of Regulations and savings
Duty extraction and severity labels are Guvnor’s analysis of the instrument, not the instrument itself. Always verify against the linked source text.