City of San Diego
Standard Environmental Operating Procedure
Environmental Services Department
WRAD-SEOP 126.96.36.199, Revision-5
Waste Reduction and Disposal Division
Effective Date: April 18, 2008
STANDARD ENVIRONMENTAL OPERATING PROCEDURE
ISO 14001- 188.8.131.52
1.0 PURPOSE AND SCOPE
1.1 This procedure describes a controlled process for calibrating and maintaining
environmental measurement and test equipment (EM&TE) that are used specifically for the
gathering of data to directly support the permit conditions or other legal and regulatory
requirements of the Waste Reduction and Disposal Division’s (WRAD) operations.
1.2 Calibration and maintenance of EM&TE is required so that the accuracy and precision of
the environmental data collected (and, potentially, the calculations based upon that data) are
known and defensible.
1.3 This procedure does not apply to measurement or test devices used for other routine
operational or process monitoring or measurement purposes.
Calibration – the periodic comparison of an instrument or measurement device to a standard of
known or greater accuracy, in order to assure the continuity and accuracy of measurements or
Calibration Standard – a device or reference used as a means of comparison for quantitatively
determining the accuracy, precision, and repeatability of instruments or measurement devices.
Calibration standards must have a known and traceable relationship to nationally recognized
standards such as those maintained by the National Institute of Standards and Technology
3.0 RESPONSIBILITY AND AUTHORITY
3.1 Project Supervisors – Supervisors assigned to manage major program elements associated
with the monitoring and measurement of environmental data, i.e. groundwater, landfill gas,
etc., have primary responsibility for the development of progr