| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | reg. 6(6) | words omitted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 2(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | reg. 6(7)-(9) | omitted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 2(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | reg. 6A | inserted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 3 | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 2 | words omitted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 4(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 2 | words omitted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 4(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 2 | words omitted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 4(c) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 2A | inserted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | Sch. 1 | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 3 | words inserted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 6(a)(i) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 3 | words substituted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 6(a)(ii) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 3 | words omitted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 6(a)(iii) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 3 | words inserted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 6(b)(i) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 3 | words substituted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 6(b)(ii) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 3 | words omitted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 6(b)(iii) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 3A | inserted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | Sch. 2 | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) Regulations 2010 (revoked) | 2010 No. 994 | Sch. 5 | inserted | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | Sch. 3 | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 2 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 3 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 4 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 5 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 6 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 7 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 8 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | Sch. 1 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | Sch. 2 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |
| The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | Sch. 3 | coming into force | The Water Supply (Water Quality) (Amendment) Regulations 2016 | 2016 No. 410 | reg. 1(1) | Not yet made to Welsh language versionApplied to English language version | |