Evidence that the product is safe.
WHY IT MATTERS
Testing is required, and records are what demonstrate control.
WHAT TO TEST
Source water Water after each treatment stage, where practical Finished product Storage tanks
WHY AFTER EACH STAGE
It identifies which stage has failed when results are poor.
WHAT TO TEST FOR
Microbiological contamination Physical and chemical parameters applicable to your source
HOW OFTEN
Per the regulatory requirement, and more frequently where risk warrants.
WHO SHOULD TEST
An accredited laboratory for formal results.
WHAT IN-HOUSE TESTING PROVIDES
Rapid indication between formal tests.
WHAT TO ESTABLISH
Simple daily checks: appearance, odour, treatment operating, residual disinfectant where applicable.
WHAT TO RECORD FOR EVERY TEST
Date and time Sample point Who took it Result Action taken where the result was unsatisfactory
WHY THE ACTION
Unsatisfactory results with no recorded response are the most serious finding.
WHAT TO DO ABOUT A FAILED RESULT
Stop production or supply Identify the affected product Establish the cause Correct it Retest before resuming
WHAT TO DO ABOUT PRODUCT ALREADY DISTRIBUTED
Establish the scope, and act on it.
WHY BATCH RECORDS MATTER
They determine what must be withdrawn.
WHAT TO KEEP
Every result, for the required retention period.
WHAT TO REVIEW
Results over time.
WHAT TRENDS REVEAL
Deteriorating source or declining treatment performance.
