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COSTCO WHOLESALE #1015

520 N LONE HILL AVE, SAN DIMAS, CA 91773 · FOOD MKT RETAIL (2,000+ SF) LOW RISK

Inspection summary

COSTCO WHOLESALE #1015 has been inspected 10 times by Los Angeles County Department of Public Health, Environmental Health Division since June 28, 2024. The most recent inspection, on July 17, 2026, recorded 3 infractions.

1 of 10 inspections on record found no infractions at all. In the past 12 months there were 5 inspections with 13 infractions recorded. The higher-risk findings here relate to: Pests, Cleaning and sanitizing and Protecting food from contamination.

Recent inspections have recorded more infractions than earlier ones, so it is worth reading the latest reports closely.

What these findings mean

Health authorities word their violations differently, so we group them by what they mean for food safety. Higher-risk findings are the ones inspectors treat as critical, because they can directly make someone sick.

  • PestsHigher risk

    Signs of mice, rats, cockroaches or flies, or gaps and clutter that let them get in or hide. Pests carry bacteria and can contaminate food and surfaces, so evidence of activity is treated seriously and usually triggers a follow-up visit.

    Recorded 3 times across 2 separate inspections, most recently on July 17, 2026. For example: NO INSECTS, RODENTS, BIRDS OR ANIMALS PRESENT

  • Cleaning and sanitizingHigher risk

    Anything that touches food, such as cutting boards, dishes and utensils, must be washed, rinsed and sanitized. Inspectors check dishwasher temperatures, sanitizer strength and how wiping cloths are stored. Poor sanitizing lets bacteria survive from one use to the next.

    Recorded 2 times across 2 separate inspections, most recently on July 17, 2026. For example: FOOD CONTACT SURFACES: CLEAN AND SANITIZED

  • Protecting food from contaminationHigher risk

    This covers how food is stored, prepared and displayed: raw meat kept away from ready-to-eat food, food covered and stored off the floor, and nothing dripping or splashing into it. Cross-contamination from raw to cooked food is a direct route for salmonella and E. coli.

    Recorded once on July 17, 2026. For example: FOOD IN GOOD CONDITION, SAFE AND UNADULTERATED

  • Food source, labelling and allergensHigher risk

    Food must come from approved suppliers, stay in labelled containers and be thrown out when it is spoiled or damaged, such as dented or swollen cans. Labelling matters for allergies: an unlabelled container can hide an allergen.

    Recorded once on July 17, 2026. For example: IMPOUNDMENT/VOLUNTARY CONDEMN AND DISPOSE (VC&D)/SAMPLING

  • Building, plumbing and upkeepLower risk

    Floors, walls and ceilings must be smooth and clean, with working lighting, ventilation, plumbing, hot and cold water, and washrooms. These are rarely an immediate food-safety risk on their own, but persistent problems can lead to pest or sanitation issues.

    Recorded 6 times across 4 separate inspections, most recently on July 17, 2026. For example: PLUMBING: FIXTURES, BACKFLOW DEVICE, DRAINAGE

About this data

These results come from Los Angeles County Department of Public Health, Environmental Health Division, which inspects food premises and other public facilities in this area. We republish the authority's public disclosure data and refresh it regularly; the official record is the final word.

10 inspections

  1. ROUTINE INSPECTION

    3 infractions

    • F134: NON-FOOD CONTACT SURFACES CLEAN
      • 1 point
    • F136: EQUIPMENT/UTENSILS APPROVED: INSTALLED; GOOD REPAIR; CAPACITY
      • 1 point
    • F141: PLUMBING: FIXTURES, BACKFLOW DEVICE, DRAINAGE
      • 1 point
  2. ROUTINE INSPECTION

    1 infraction

    • F138: ADEQUATE VENTILATION AND LIGHTING; DESIGNATED AREAS, USE
      • 1 point
  3. ROUTINE INSPECTION

    1 infraction

    • F115: FOOD CONTACT SURFACES: CLEAN AND SANITIZED
      • 4 points
  4. ROUTINE INSPECTION

    6 infractions

    • F114: FOOD IN GOOD CONDITION, SAFE AND UNADULTERATED
      • 2 points
    • F138: ADEQUATE VENTILATION AND LIGHTING; DESIGNATED AREAS, USE
      • 1 point
    • F141: PLUMBING: FIXTURES, BACKFLOW DEVICE, DRAINAGE
      • 1 point
    • F145: FLOORS, WALLS AND CEILINGS PROPERLY BUILT, MAINTAINED AND CLEAN
      • 1 point
    • F124: NO INSECTS, RODENTS, BIRDS OR ANIMALS PRESENT
      • 2 points
    • F151: IMPOUNDMENT/VOLUNTARY CONDEMN AND DISPOSE (VC&D)/SAMPLING
  5. ROUTINE INSPECTION

    2 infractions

    • F136: EQUIPMENT/UTENSILS APPROVED: INSTALLED; GOOD REPAIR; CAPACITY
      • 1 point
    • F134: NON-FOOD CONTACT SURFACES CLEAN
      • 1 point
  6. ROUTINE INSPECTION

    1 infraction

    • F035: # 35. EQUIPMENT/UTENSILS - APPROVED; INSTALLED; CLEAN; GOOD REPAIR, CAPACITY
      • 1 point
  7. ROUTINE INSPECTION

    1 infraction

    • F014: # 14. FOOD CONTACT SURFACES: CLEAN AND SANITIZED
      • 2 points
  8. ROUTINE INSPECTION

    0 infractions

  9. ROUTINE INSPECTION

    1 infraction

    • F037: # 37. ADEQUATE VENTILATION AND LIGHTING; DESIGNATED AREAS, USE
      • 1 point
  10. ROUTINE INSPECTION

    2 infractions

    • F043: # 43. PREMISES; PERSONAL/CLEANING ITEMS; VERMIN-PROOFING
      • 1 point
    • F023: # 23. NO RODENTS, INSECTS, BIRDS, OR ANIMALS
      • 2 points

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