Which violation numbers show up most often in failed inspections

When a Chicago restaurant fails an inspection, the report almost always includes a few specific violation numbers — the ones that carry the weight. Looking across years of failed reports, the patterns are remarkably consistent.

The "Fail-makers" — violations that, when present, often push an inspection to Fail

Several violation numbers show up disproportionately in Fail reports versus Pass-with-Conditions reports. These are the ones that, on their own, can take a kitchen down:

Violation 38 (insects, rodents, animals not present). The most common Fail-driver in Chicago. Severe pest activity — live roaches, fresh droppings, gnaw marks across food storage — is consistently cited as a primary reason for a Fail. A little pest evidence might be a Conditional. A lot is a Fail.

Violation 22 (proper cold holding temperatures). A close second. Improper cold holding by itself is usually a Conditional, but when it's paired with significant volumes of food in the danger zone for extended periods, it pushes to Fail. Multi-cooler failures, food destroyed on-site for being out of temperature — those are Fail conditions.

Violation 7 (sewage and wastewater properly disposed). Less common, but almost always Fail-grade when cited. Active sewage backup, drains overflowing, plumbing failures contaminating food prep areas. Inspectors close restaurants for this fairly often.

Violation 13 (food separated and protected — raw vs ready-to-eat). When raw chicken is leaking onto produce, or raw fish is being prepped on a board that just held salad ingredients without sanitation — Fail-grade. Cross-contamination is one of the categories the city takes very seriously.

Violation 1 (person in charge present and demonstrates knowledge). Doesn't sound dramatic, but when an inspector finds the manager has zero food safety knowledge, can't answer basic questions, and is overseeing other priority violations — that combination usually fails.

The "Fail-multipliers" — violations that, when present alongside others, escalate the result

Some violations don't fail an inspection on their own but combine badly with the Fail-makers:

Violation 23 (hot holding). Usually a Conditional on its own. Combined with violation 22 (cold holding), it tells the inspector that no temperature control is working — that's a Fail.

Violation 33 (cooling methods). Ditto. Improper cooling alone is usually correctable. Combined with active temperature abuse already happening, it suggests systemic failure.

Violation 5 (hands washed and clean). Single bare-hands incident: written up, possibly a Conditional. Multiple incidents observed across the inspection: usually a Fail, especially with cross-contamination cited too.

Violation 47 (food contact surfaces clean). Filthy cutting boards, encrusted slicers — generally a Conditional unless paired with active prep happening on those surfaces.

What the data shows about clusters

Looking at clustering patterns:

• A Fail with only one violation cited is unusual. Maybe 5% of Fails are single-violation. They're typically the most severe — sewage backup, severe pest infestation, etc.
• Most Fails have 5–15 violations cited. The combination of a few priority items plus several priority foundation items is the typical Fail profile.
• Fails with 20+ violations suggest systemic operational breakdown — usually multiple interconnected issues.

The number of violations isn't the most important metric. The types of violations matter more.

The "almost always present, rarely the cause" violations

A few violations show up in tons of Fail reports but typically aren't the main reason for the Fail:

Violation 41 (wiping cloths). Cited in maybe 30% of all inspections, including most Conditional and Fail ones. Almost never the deciding factor.

Violation 55 (physical facilities maintained). Cosmetic and structural issues. Always present in old buildings. Rarely the Fail-maker.

Violation 51 (plumbing). Cited often. Sometimes serious (Fail-grade), sometimes minor. Read the comments for severity.

What this means for reading reports

A few takeaways:

• A Fail report dominated by violations 38, 22, 13, 7, or 1 is telling you the kitchen had a serious food safety problem.
• A Fail report with a long list of mostly 40s+ violations and a single priority item is more likely a "death by a thousand cuts" inspection — the kitchen was sloppy across the board, not catastrophically broken in one place.
• A Conditional report with low-number priority violations is sometimes more concerning than a Fail report with mostly cosmetic issues. The classification is binary, but the underlying severity is a spectrum.

The summary

When you scan a Fail report, your eye should go to the lowest violation numbers first. Those are almost always the reason the inspection failed. The 50s-and-60s items are context. The 1–28 items are the story.