Sampling and analysis
3.—(1) The Department must ensure that the guideline value adopted as a result of paragraph 1 and samples are analysed in accordance with the following provisions of this paragraph.
(2) Subject to sub-paragraph (1), sampling shall be carried out at least at the minimum frequency specified in Table 1 to this Schedule.
(3) Where sampling shows that the guideline value adopted as a result of paragraph 1 is not being met, the Department must establish whether this is the result of chance, a natural phenomenon or pollution, and must adopt appropriate measures to prevent deterioration.
(4) Samples shall be analysed using the reference methods of analysis specified in Table 1 to this paragraph or methods which are at least as reliable as the reference methods.
Table 1
Microbial Standard for shellfish waters
| Parameter | Units | Guideline values and comments | Reference methods of analysis | Minimum sampling and measuring frequency |
|---|---|---|---|---|
| Escherichia coli (E.coli) | cfu/100ml | ≤230 in the shellfish flesh and intervalvular liquid | ISO16649 part 3 or equivalent | Quarterly |