LegalizeThe Water Supply (Water Quality) Regulations 2001
| (1) | (2) | (3) | (4) | (5) |
|---|---|---|---|---|
| Parameter or other substance | Concentration and unit of measurement | Trueness % of concentration | Precision % of concentration | Limit of detection % of concentration |
| Antimony | 5.0℞gSb/l | 25 | 25 | 25 |
| Arsenic | 10℞gAs/l | 10 | 10 | 10 |
| Benzene | 1.0℞g/l | 25 | 25 | 25 |
| Boron | 1.0 mgB/l | 10 | 10 | 10 |
| Bromate | 10℞BrO₃/l | 25 | 25 | 25 |
| Copper | 2.0 mgCu/l | 10 | 10 | 10 |
| 1,2 dichloroethane | 3.0℞g/l | 25 | 25 | 10 |
| Lead | 25℞gPb/l | 10 | 10 | 10 |
| Nickel | 20℞gNi/l | 10 | 10 | 10 |
| Nitrite (ex works) | 0.1 gNO₂/l | 10 | 10 | 10 |
| Tetrachloroethene)Trichloroethene ) | 10℞g/l | 25 | 25 | 10 |
*Trueness, precision and limit of detection apply to the individual substances specified at 50% of the concentration in column (2).
A water undertaker’s programme of work shall—
- (a) identify, by reference to the parameters set out in the Table below, those parameters in respect of which the requirements of regulation 41(1)(a) and (b) are unlikely to be satisfied unless steps are taken to secure that those requirements will be met;
- (b) identify whether the requirement that the formula [nitrate]/50 + [nitrite]/331, where the square brackets signify the concentrations in mg/1 for nitrate (NO₃) and nitrite (NO₂), is unlikely to be satisfied;
- (c) specify the steps that the water undertaker intends to take for the purpose of securing that the requirements of regulation 41(1)(a) and (b) are met;
- (d) specify the date by which each of the steps specified in accordance with paragraph (c) is proposed to be completed; and
- (e) specify the times at which, or the periods within which, reports will be made to the National Assembly for Wales in relation to the taking and completion of the steps specified in accordance with paragraph (c).
Enterococci
Acrylamide
Antimony
Arsenic
Benzene
Benzo(a)pyrene
Boron
Bromate
Copper
1,2-dichloroethane
Epichlorohydrin
Lead
Nickel
Nitrite
Polycyclic aromatic hydrocarbons
Tetrachloroethene ) sum of concentrations
Trichloroethene )
Trihalomethanes — Total (sum of concentrations of chloroform, bromoform, dibromochloromethane and bromodichloromethane)
Vinyl chloride
Editorial notes
Regulations revoked (20.4.2010) by The Water Supply (Water Quality) Regulations 2010 (S.I. 2010/994), regs. 1(1), 39 (with reg. 1(2)(3))
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PART VA — DRINKING WATER PROTECTED AREAS
Drinking water abstraction points: monitoring sites
16A
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Disinfection and other treatment arrangements
Risk assessment
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