- Y Diweddaraf sydd Ar Gael (Diwygiedig) - Saesneg
- Y Diweddaraf sydd Ar Gael (Diwygiedig) - Cymraeg
- Pwynt Penodol mewn Amser (20/11/2017)
- Gwreiddiol (Fel y'i Gwnaed) - Saesneg
- Gwreiddiol (Fel y'i Gwnaed) - Cymraeg
Point in time view as at 20/11/2017.
There are currently no known outstanding effects for the The Private Water Supplies (Wales) Regulations 2017, SCHEDULE 2.
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Regulations 2, 9, 18 and 26
1.—(1) A local authority must undertake monitoring for Group A parameters in accordance with this Part.
(2) “Monitoring for Group A parameters” means sampling for each parameter listed in column 1 of Table 1 in the circumstances listed in the corresponding entry for that parameter in column 2 of that Table, in order to—
(a)determine whether or not water complies with the concentrations or values in Schedule 1;
(b)provide information on the organoleptic and microbiological quality of the water; and
(c)establish the effectiveness of the treatment of the water, including disinfection.
Parameter | Circumstances |
---|---|
Aluminium | If used as a water treatment chemical |
Ammonium | If chloramination is used |
Clostridium perfringens (including spores) | Where the water originates from, or is influenced by, surface waters |
Coliform bacteria | In all supplies |
Colony counts | In all supplies |
Colour | In all supplies |
Conductivity | In all supplies |
Escherichia coli (E. coli) | In all supplies |
Hydrogen ion concentration | In all supplies |
Iron | If used as a water treatment chemical |
Manganese | Where the water originates from, or is influenced by, surface waters |
Nitrate | If chloramination is used |
Nitrite | If chloramination is used |
Odour | In all supplies |
Pseudomonas aeruginosa | Only in the case of water in bottles or containers |
Taste | In all supplies |
Turbidity | In all supplies |
Commencement Information
I1Sch. 2 para. 1 in force at 20.11.2017, see reg. 1
2. Sampling for Group A parameters must be carried out at frequencies specified in Table 2.
Volume m3/day | Sampling frequency per year |
---|---|
≤10 | 1 |
˃ 10 ≤ 100 | 2 |
˃ 100 ≤ 1,000 | 4 |
˃ 1,000 ≤ 2,000 | 10 |
˃ 2,000 ≤ 3,000 | 13 |
˃ 3,000 ≤ 4,000 | 16 |
˃ 4,000 ≤ 5,000 | 19 |
˃ 5,000 ≤ 6,000 | 22 |
˃ 6,000 ≤ 7,000 | 25 |
˃ 7,000 ≤ 8,000 | 28 |
˃ 8,000 ≤ 9,000 | 31 |
˃ 9,000 ≤ 10,000 | 34 |
˃ 10,000 | 4 + 3 for each 1,000 m3/day of the total volume (rounding up to the nearest multiple of 1,000 m3/day) |
Commencement Information
I2Sch. 2 para. 2 in force at 20.11.2017, see reg. 1
3.—(1) A local authority must undertake monitoring for Group B parameters in accordance with this Part.
(2) “Monitoring for Group B parameters” means sampling for each parameter listed in Part 1 or 2 of Schedule 1 (other than Group A parameters already being sampled under Part 1 of this Schedule)—
(a)in order to provide information necessary to determine whether or not the private water supply satisfies each concentration, value or state specified in either of those Parts of that Schedule; and
(b)if disinfection is used, to check that disinfection by-products are kept as low as possible without compromising the effectiveness of disinfection.
Commencement Information
I3Sch. 2 para. 3 in force at 20.11.2017, see reg. 1
4. Sampling for Group B parameters must be carried out at the frequencies specified in Table 3.
Volume m3/day | Sampling frequency per year |
---|---|
≤10 | 1 |
˃ 10 ≤ 3,300 | 2 |
˃ 3,300 ≤ 6,600 | 3 |
˃ 6,600 ≤ 100,00 | 4 |
˃ 10,000 ≤ 100,000 | 3 + 1 for each 10,000 m3/day of the total volume (rounding up to the nearest multiple of 10,000 m3/day) |
˃ 100,000 | 10 + 1 for each 25,000 m3/day of the total volume (rounding up to the nearest multiple of 25,000 m3/day) |
Commencement Information
I4Sch. 2 para. 4 in force at 20.11.2017, see reg. 1
Commencement Information
I5Sch. 2 Pt. 3 in force at 20.11.2017, see reg. 1
Volumea of water produced in bottles or containers each day (m3) | Monitoring for Group A parameters: number of samples per year | Monitoring for Group B parameters: number of samples per year |
---|---|---|
≤10 | 1 | 1 |
˃ 10 ≤ 60 | 12 | 1 |
˃ 60 | 1 for each 5 m3/day of the total volume (rounding up to the nearest multiple of 5 m3/day) | 1 for each 100 m3/day of the total volume (rounding up to the nearest multiple of 100 m3/day) |
a The volumes are calculated as averages taken over a calendar year. |
5.—(1) A local authority may reduce the sampling frequencies required for a parameter (other than for Escherichia coli (E. coli)) under Part 1 or 2 of this Schedule provided that—
(a)the results from samples taken in respect of that parameter collected at regular intervals over the preceding 3 years are all at less than 60% of the parametric value;
(b)the results of a risk assessment are considered, and that risk assessment indicates that no factor can be reasonably anticipated to be likely to cause deterioration of the quality of the water for human consumption;
(c)data collected in the course of discharging its monitoring obligations under this Part are taken into account; and
(d)at least one sample is taken per year.
(2) A local authority may set a higher frequency for any parameter if it considers it appropriate taking into account the findings of any risk assessment.
Commencement Information
I6Sch. 2 para. 5 in force at 20.11.2017, see reg. 1
6.—(1) A local authority may cease to monitor a parameter (other than Escherichia coli (E. coli)) otherwise required to be monitored under Part 1 or 2 of this Schedule provided that—
(a)the results from samples taken in respect of that parameter collected at regular intervals over the preceding 3 years are all at less than 30% of the parametric value;
(b)the results of a risk assessment are considered, and that risk assessment indicates that no factor can be reasonably anticipated to be likely to cause deterioration of the quality of the water for human consumption; and
(c)data collected in the course of discharging its monitoring obligations under this Part are taken into account.
(2) A local authority may monitor for other properties, elements, organisms or substances not included as a parameter if it considers it appropriate taking into account the findings of any risk assessment.
Commencement Information
I7Sch. 2 para. 6 in force at 20.11.2017, see reg. 1
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