# The Private Water Supplies (Scotland) Regulations 2006, Part Table B: Chemical parameters

Extent: S

Part I: Directive requirements
(1)Item
(2)Parameters
(3)Concentration or Value (maximum)
(4)Units of Measurement
1.
Acrylamide(i)
0.10
µg/1
2.
Antimony
5.0
µgSb/l
3.
Arsenic
10
µgAs/l
4.
Benzene
1.0
µg/l
5.
Benzo(a)pyrene
0.010
µg/l
6.
Boron
1.0
mgB/l
7.
Bromate
10
µgBrO3/l
8.
Cadmium
5.0
µgCd/l
9.
Chromium
50
µgCr/l
10.
Copper
2.0
mg Cu/l
11.
Cyanide
50
µgCN/l
12.
1,2 dichloroethane
3.0
µg/l
13.
Epichlorohydrin(i)
0.10
µg/l
14.
Fluoride
1.5
mg F/l
15.
Lead
(a) 25, from 3/7/06 until 24/12/13
µgPb/l
(b) 10, from 25/12/13
µgPb/l
16.
Mercury
1.0
µgHg/l
17.
Nickel
20
µgNi/l
18.
Nitrate
50
mgNO3/l
19.
Nitrite
0.50
mgNO2/l
20.
Pesticides(ii)–
Aldrin
0.030
µg/l
Dieldrin
0.030
µg/l
Heptachlor
0.030
µg/l
Heptachlor epoxide
0.030
µg/l
other pesticides
0.10
µg/l
21.
Pesticides: Total(iii)
0.50
µg/l
22.
PAH(iv)
0.10
µg/l
23.
Selenium
10
µgSe/l
24.
Tetrachloroethene & Trichloroethene(v)
10
µg/l
25.
THM: Total(vi)
100
µg/l
26.
Vinyl chloride(i)
0.50
µg/l

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Source: https://www.legislation.gov.uk/ssi/2006/209/schedule/1/part/2 (the official version)
Page: https://openlegislation.uk/private-water-supplies-scotland-regulations-2006/schedule-1/part-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.