OMA Version 2 discharges to water subject to Operator
Self Monitoring and Urban Wastewater Treatment
Directive self monitoring
Instructions for completion of OMA Reports
OMA section 1- 4 reports
The four OMA sections have individual report sheets that should be completed
during the OMA. The operator should be allowed to make a copy of the completed
reports.
A score of 1 – 5 should be determined for each element with reference to V2 of the
OMA guidance document. A pragmatic approach should be taken to decide on the
most appropriate score. A not applicable score should be used as a last resort and
will require a supporting comment to justify the decision.
Some of the OMA elements are subject to OSM MCERTS requirements and UKAS
audit, these elements have been identified in the guidance document on OMA for
discharges to water subject to Operator Self Monitoring and Urban Wastewater
Treatment Directive self monitoring. When being assessed against OSM
requirements these elements will normally be awarded the highest score available.
If both OSM and UWWTD monitoring are assessed during the same assessment,
two scores will be given for specific elements. Both scores should be recorded on
the OMA report with explanatory comments and a total OMA score calculated
separately for each.
The summary comment box is to record comments from the OMA assessor. This
could include, for example, comments regarding individual elements in more detail.
OMA Summary sheet
The summary sheet can be completed during the OMA or later. A copy does not
have to be made available to the operator at the time of the assessment.
A score of less than 3 for an individual OMA element will normally trigger a further in
depth assessment of that element which will focus in more detail and may use more
examples. The further assessment may be carried out during the OMA or later
whichever is the most appropriate given the circumstances. If the assessment
identifies a permit condition non-compliance then an appropriate CCS score will be
awarded against all relevant discharge permits.
The overall assessment comment box is to record summary comments from the
OMA assessor. These could include, for example planned actions, issues arising,
concerns with scores.
Data input
The four OMA section reports plus the OMA summary sheet must be provided to
the operator and a copy must be retained.
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OMA report for OSM and UWWTD v2 February 2012
February 2012
OPERATOR MONITORING ASSESSMENT
SUMMARY SHEET
DISCHARGES TO WATER SUBJECT TO OPERATOR SELF
MONITORING AND URBAN WASTEWATER TREATMENT
DIRECTIVE SELF MONITORING
Operator:
Assessing officers:
Others Present:
OMA Sections
SCORE(S)*
OMA 1 - Management, training and competence of personnel
OMA 2 - Fitness for purpose of monitoring methods
OMA 3 – Maintenance and calibration of monitoring equipment
OMA 4 – Quality assurance of monitoring
OVERALL SCORE(S)*
OVERALL ASSESSMENT COMMENTS
*Enter a separate score for OSM and UWWTD if both have been covered in the same OMA
Date of assessment:
Signed:
Date:
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OMA report for OSM and UWWTD v2 February 2012
February 2012
OMA REPORTS – discharges to water subject to Operator Self Monitoring
and Urban Wastewater Treatment Directive self monitoring
OMA 1: Management, training and competence of personnel
Operator:
Date:
OMA ELEMENTS
A. Management structure
SCORE*
COMMENTS
B. Schedules
C. Use of results
D. Understanding of requirements.
E. Competence of personnel
OMA 1 – SCORE*
SUMMARY COMMENTS FOR OMA 1
*Enter a separate score for OSM and UWWTD if both have been covered in the same OMA
Page 3of 6
OMA report for OSM and UWWTD v2 February 2012
February 2012
OMA REPORTS – discharges to water subject to Operator Self Monitoring
and Urban Wastewater Treatment Directive self monitoring
OMA 2: Fitness for purpose of monitoring methods
Operator:
Date:
OMA ELEMENTS
A. Sampling facilities
SCORE*
COMMENTS
B. Measurement techniques
C. Use of relevant methods
D. Certification of equipment
E. Performance characteristics of the
method
OMA 2 – SCORE*
SUMMARY COMMENTS FOR OMA 2
*Enter a separate score for OSM and UWWTD if both have been covered in the same OMA
Page 4of 6
OMA report for OSM and UWWTD v2 February 2012
February 2012
OMA REPORTS – discharges to water subject to Operator Self Monitoring
and Urban Wastewater Treatment Directive self monitoring
OMA 3: Maintenance and calibration of monitoring equipment
Operator:
Date:
OMA ELEMENTS
A. Documentation of maintenance and
calibration procedures
SCORE*
COMMENTS
B. Frequency of maintenance and
calibration
C. Equipment reliability
D. Breakdown response
E. Traceability.
F. Acceptability of calibration methods
OMA 3 – SCORE*
SUMMARY COMMENTS FOR OMA 3
*Enter a separate score for OSM and UWWTD if both have been covered in the same OMA
Page 5of 6
OMA report for OSM and UWWTD v2 February 2012
February 2012
OMA REPORTS – discharges to water subject to Operator Self Monitoring
and Urban Wastewater Treatment Directive self monitoring
OMA 4: Quality assurance of monitoring
Operator:
Date:
OMA ELEMENTS
A. Documentation of monitoring
procedures
SCORE*
COMMENTS
B. Quality control schemes
C. Auditing of monitoring
D. Audit compliance
E. Reporting
OMA 4 – SCORE*
SUMMARY COMMENTS FOR OMA 4
*Enter a separate score for OSM and UWWTD if both have been covered in the same OMA
Page 6of 6
OMA report for OSM and UWWTD v2 February 2012
February 2012