Monitoring of discharges to water and sewer

0,31

MB

48

stron

6572

ID

Environment Agency

2004

rok

Contents

1. The regulatory framework 1

1.1 Legislative framework relevant to water discharge monitoring 1

1.2 MCERTS and discharges to water 2

2. Monitoring strategy 3

2.1 Agency self monitoring policy 3

2.2 Approaches to monitoring discharges 4

2.3 Definition of substance to measure 5

2.4 Specification of accuracy: tolerable error targets 6

2.5 Quality assurance 7

3. Sampling 9

3.1 Choice of sampling point 9

3.2 Composite or spot samples 10

3.3 Automatic sampling equipment and MCERTS 10

3.4 Access, facilities and services 11

3.5 Sample storage and transportation 11

3.6 Sampling procedure manual 11

4. Analytical systems 12

4.1 Choosing a method 12

4.2 Equipment 13

4.3 Validation 13

4.4 Methods and procedures 15

4.5 Quality control 16

4.6 Measurement uncertainty 17

4.7 Collection and reporting of data 18

4.8 Electronic data reporting 19

5. Flow measurement and MCERTS 19

6. Status of this guidance 20

7. References 20

7.1 General 20

7.2 Legislative 21

Appendix 1 Detailed sampling requirements 22

Appendix 2 Accuracy requirements 25

Appendix 3 Typical validation protocol 29

Appendix 4 Index of monitoring methods 31