# The Private Water Supplies (Scotland) Regulations 1992, Part 1: FREQUENCY


Class of Supply
Basic Parameters(2)
Number of Samples(1) Additional Parameters(3)
Coliform Parameters(4)
Notes:
(1) Samples are to be taken each year except in the case of class E supplies (see note 5). If more than one sample is required, the samples must be taken on separate occasions.
(2) The basic parameters are listed in column (1) of Part II of this Schedule.
(3) The additional parameters are listed in column (2) of Part II of this Schedule. The islands or district council must sample for any additional parameters in respect of which there are reasonable grounds for believing that, because of any characteristics of the locality or of the supply’s distribution system, the concentration or value in respect of that parameter has caused or is likely to cause the water in the supply to become unwholesome.
(4) The coliform parameters are total coliforms and faecal coliforms. Sampling for coliform parameters is additional to the coliform sampling carried out as part of sampling for basic parameters and must be carried out on separate occasions.
(5) Class E supplies are to be sampled once for basic and additional parameters before 31st December 1994 unless—
(a) they have been sampled for those parameters during 1990 or 1991; and
(b) there are reasonable grounds for believing that no change has occurred or is likely to occur which may cause the quality of the supply to deteriorate.
From 1st January 1995 all class E supplies are to be sampled once every 5 years.
(6) The sampling frequency should be halved if the premises served by the supply are used for not more than six months in the year.
(7) In the first year in which the supply is used as a class 3 supply, 2 samples must be taken in the first two months of the year and 3 in the remainder of that year. In 1992, 2 samples must be taken in the course of April, May and June and 2 in the remainder of that year.
C
1
1
1
D
1
1
—
E(5)
1
1
—
3
2(6)
2(6)
4(6)(7)
4
2(6)
1(6)
—
5
—
—
1

---
Source: https://www.legislation.gov.uk/uksi/1992/575/schedule/3/part/1 (the official version)
Page: https://openlegislation.uk/private-water-supplies-scotland-regulations-1992/schedule-3/part-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.