Page 199 - California Stormwater Workshop Handouts

ATTACHMENT H

SAMPLE COLLECTION AND HANDLING INSTRUCTIONS

the Examination of Water and Wastewater” (American Public Health
Association). All monitoring instruments and equipment (including Discharger
field instruments for measuring pH or specific conductance if identified as an
additional sampling parameter) shall be calibrated and maintained in accordance
with manufacturers’ specifications to ensure accurate measurements. All
laboratory analyses shall be conducted according to approved test procedures
under 40 Code of Federal Regulations part 136, unless other test procedures
have been specified by the Regional Water Quality Control Board. All metals
shall be reported as total metals. Dischargers may conduct their own field
analysis of pH (or specific conductance if identified as an additional sampling
parameter) if the Discharger has sufficient capability (qualified and trained
employees, properly calibrated and maintained field instruments, etc.) to
adequately perform the field analysis. With the exception of field analysis
conducted by Dischargers for pH (or specific conductance if identified as an
additional sampling parameter), all analyses shall be sent to and conducted at a
laboratory certified for such analyses by the California Department of Public
Health. Dischargers are required to report to the Water Board any sampling data
collected more frequently than required in this General Permit (Section XXI.J.2)

Order 2014-0057-DWQ 3