GAP Field Survey & Data Collection 2 — Questions and Answers
Question 1: When conducting a water source survey for GAP compliance, which parameter is MOST critical to document at the point of use?
- Air temperature at time of sampling
- Generic turbidity observation without measurement
- Microbial quality including generic E. coli levels (Correct answer)
- Color of water at the source intake
Correct answer: Microbial quality including generic E. coli levels
Microbial quality, particularly generic E. coli levels, is the primary indicator used in GAP to assess agricultural water safety at the point of use.
Question 2: A field surveyor notices a dead animal carcass within 25 feet of a harvested crop row. According to GAP field data protocols, what is the FIRST required action?
- Continue harvest and note location in the field log
- Immediately quarantine the surrounding area and document findings (Correct answer)
- Remove the carcass before continuing any harvest activity
- Report to the county health department within 24 hours
Correct answer: Immediately quarantine the surrounding area and document findings
GAP requires immediate quarantine of any area near a potential contamination source and thorough documentation before any harvest decision is made.
Question 3: Which method is the MOST reliable for establishing permanent GPS reference points in a large multi-field operation?
- Consumer-grade smartphone GPS taken once per season
- Differential GPS (DGPS) with a known benchmark (Correct answer)
- Visual triangulation from fixed landmarks
- Estimated coordinates from county parcel maps
Correct answer: Differential GPS (DGPS) with a known benchmark
Differential GPS corrects for atmospheric and satellite errors by referencing a fixed benchmark, providing the sub-meter accuracy needed for permanent field reference points.
Question 4: Under the Produce Safety Rule, how frequently must water testing records from field surveys be accessible to an inspector?
- Only during the growing season they were collected
- For at least 2 years from the date of collection (Correct answer)
- For at least 3 years for sprouts and 2 years for all other produce
- Indefinitely as part of the permanent farm record
Correct answer: For at least 2 years from the date of collection
The FDA Produce Safety Rule generally requires that water quality records be retained and accessible for at least 2 years.
Question 5: During a pre-harvest field survey, a worker discovers that a neighboring field's irrigation runoff is pooling in the low-lying area of the crop field. What should be recorded in the survey log?
- Only the pool location and estimated acreage affected
- Location, estimated volume, source origin, and potential contamination risk (Correct answer)
- The neighboring farm's identity and contact information only
- Pooled water volume and current temperature
Correct answer: Location, estimated volume, source origin, and potential contamination risk
Complete documentation of location, volume, source, and contamination risk gives decision-makers the full picture needed to assess food safety risk.
Question 6: When mapping high-risk zones in a field survey, which of the following characteristics would classify an area as HIGH risk for contamination?
- Located more than 500 feet from any livestock operation
- Adjacent to a wildlife corridor with evidence of animal intrusion (Correct answer)
- Planted with a low-canopy cover crop last season
- Irrigated exclusively with treated municipal water
Correct answer: Adjacent to a wildlife corridor with evidence of animal intrusion
Proximity to wildlife corridors with physical evidence of animal activity (tracks, feces) is a recognized high-risk indicator in GAP field survey protocols.
Question 7: A GAP auditor reviews field survey forms and finds that wind direction was recorded on only 2 of 10 spray application days. Which standard does this most likely violate?
- OSHA pesticide applicator notification standard
- GAP record completeness requirements for application conditions (Correct answer)
- EPA label compliance for restricted-use pesticides
- State agricultural department spray drift regulations
Correct answer: GAP record completeness requirements for application conditions
GAP field data collection standards require consistent, complete documentation of environmental conditions—including wind direction—for every spray application event.
GAP Field Survey & Data Collection 2
When conducting a water source survey for GAP compliance, which parameter is MOST critical to document at the point of use?