At least annually, farms must assess and maintain their
pre–
harvest water system but also must reassess if any significant change happens to the typical
water set up or source.
Here is the assessment flowchart to follow at least annually. Several factors play into assessing the
water and distribution of said
water, including if the source is near locations that are likely to introduce hazards onto fruit or fruit contact surfaces.
As always, there are exemptions to implementing this
water assessment on your farm (ie. if your
pre–
harvest watering methods meet the same criteria as the
harvest and post-
harvest rules, if
water used is coming from a public
water source and can proven so with certificates, or if
water is treated with the same standards as those found in the
Produce Safety Rule and the
water quality would not have changed prior to
harvest).