# Commission Implementing Decision of 26 September 2014 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of pulp, paper and board (notified under document C(2014) 6750) (Text with EEA relevance) (2014/687/EU), Division BAT 10: BAT is to carry out the monitoring of emissions to water, as indicated below, with the indicated frequency and according to EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.

Extent: E+W+S+N.I.

There is a trend to replace COD by TOC for economic and environmental reasons. If TOC is already measured as a key process parameter, there is no need to measure COD; however, a correlation between the two parameters should be established for the specific emission source and waste water treatment step.
Rapid test methods can also be used. The results of rapid tests should be checked regularly (e.g. monthly) against EN standards or, if EN standards are not available, against ISO, national or other international standards which ensure the provision of data of an equivalent scientific quality.
For mills operating less than seven days a week, the monitoring frequency for COD and TSS may be reduced to cover the days the mill is in operation or to extend the sampling period to 48 or 72 hours.
Applicable where EDTA or DTPA (chelating agents) are used in the process.
Not applicable to plants that provide evidence that no AOX is generated or added via chemical additives and raw materials.
Parameter
Monitoring frequency
Monitoring associated with
a
Chemical oxygen demand (COD) or
Total organic carbon (TOC)
Daily
BAT 19
BAT 33
BAT 40
BAT 45
BAT 50
b
BOD5 or BOD7
Weekly (once a week)
c
Total suspended solids (TSS)
Daily
d
Total nitrogen
Weekly (once a week)
e
Total phosphorus
Weekly (once a week)
f
EDTA, DTPA
Monthly (once a month)
g
AOX (according to EN ISO 9562:2004)
Monthly (once a month)
BAT 19: bleached kraft
Once every two months
BAT 33: except TCF and NSSC mills
BAT 40: except CTMP and CMP mills
BAT 45
BAT 50
h
Relevant metals (e.g. Zn, Cu, Cd, Pb, Ni)
Once a year

---
Source: https://www.legislation.gov.uk/eudn/2014/687/annex/division/9/division/1.1/division/1.1.6/division/bat+10 (the official version)
Page: https://openlegislation.uk/eu-decision-2014-687/annex/division-9/division-1.1/division-1.1.6/division-bat+10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.