Ag Water Tools and Calculators

Added by Chris Callahan • Last updated September 6, 2019
Author: Western Center for Food Safety / UC Davis / Arizona State
Type: Tools & Calculators
Topic: Ag Water (Preharvest), Produce Safety Rule (PSR)

The Produce Safety Rule (PSR) requires growers to initially establish a Microbial Water Quality Profile (MWQP) for each untreated agricultural water source used during growing activities of covered produce (other than sprouts) using a direct water application method and conduct annual surveys for that water source in subsequent years. The water quality profile is based on the levels of generic E. coli in your agricultural water. There are different requirements for agricultural water that comes from surface or ground (well) sources.

Several tools were developed to make it easy to calculate the GM and STV and to determine if your water meets the criteria for appropriate application to produce before harvest. The tools were also designed to assist you with making water management decisions if your water does not meet the criteria in the Produce Safety Rule.

 


 


Produce Safety Alliance (PSA) Website
Added by Elizabeth Newbold • Last updated August 11, 2017
Type: National Curricula
Topic: General (PSR); Produce Safety Rule (PSR); Worker Health, Hygiene & Training; Soil Amendments; Wildlife, Domestic Animals & Land Use; Ag Water (Preharvest); Ag Water (Postharvest); Postharvest Handling & Sanitation; Food Safety Plans
Penn State Farm Food Safety Fact Sheets
Added by Luke LaBorde • Last updated March 1, 2018
Type: Fact Sheets
Topic: Worker Health, Hygiene & Training; Produce Safety Rule (PSR); Soil Amendments; Wildlife, Domestic Animals & Land Use; Ag Water (Preharvest); Ag Water (Postharvest); Postharvest Handling & Sanitation