Practice Test Geeks(GAP) Good Agricultural Practices Certified Practice Test
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Water Quality & Management Flashcards

7 cards from real GAP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Water Quality & Management flashcards as text

  1. According to FDA's FSMA Produce Safety Rule, what is the geometric mean (GM) standard for generic E. coli in agricultural water used for direct contact with covered produce?

    Answer: 126 CFU/100 mL

    The FSMA Produce Safety Rule sets a geometric mean of 126 CFU/100 mL for generic E. coli in untreated surface water used for direct produce contact.

  2. What is the purpose of maintaining a 'buffer zone' or setback between a water source and production fields under GAP?

    Answer: To reduce the risk of surface runoff carrying contaminants from neighboring areas into the water or field

    Buffer zones physically separate the water source or crop from potential contamination sources such as animal operations, roads, or flooded areas.

  3. A grower uses well water for irrigation and wants to assess contamination risk. Which site assessment factor is MOST important to evaluate?

    Answer: Proximity of the well to septic systems, animal operations, or latrines

    Nearby septic systems or animal operations are the most significant contamination risk factors for a well because pathogens can travel through soil to the water table.

  4. How should water test samples be collected to ensure representative results for GAP compliance?

    Answer: At the point of use, such as the irrigation emitter or spray nozzle output

    Sampling at the point of use captures any contamination introduced within the distribution system and reflects what actually contacts the crop.

  5. Which condition most commonly causes spikes in microbial contamination levels in surface water sources used for irrigation?

    Answer: Heavy rainfall events that increase runoff from surrounding land

    Rainfall events mobilize pathogens from animal waste, soil, and other sources through runoff into surface water bodies, causing sudden contamination spikes.

  6. Under GAP, which document must be completed to demonstrate compliance with agricultural water quality requirements?

    Answer: Water test records including sample date, location, method, and results

    Written records of water testing — including all sample metadata and results — are required to demonstrate GAP compliance during audits.

  7. What does 'sanitary survey' mean in the context of GAP agricultural water assessments?

    Answer: A physical inspection of the water source and its surroundings to identify potential contamination hazards

    A sanitary survey is an on-site visual inspection that identifies hazards such as animal intrusion, failing infrastructure, or nearby pollution sources that could compromise water quality.