Chicago Sanitation Code Complaints Since 2011

City of Chicago provides a historical record of all sanitation code complaints reported to 311 since January 1, 2011. The dataset includes duplicate requests labeled in the status field and is updated daily by the Department of Streets and Sanitation.

Use Cases

• Analyze complaint status fields like 'Open - Dup' or 'Completed - Dup' to identify and filter duplicate service requests.
• Map the geographic distribution of sanitation code violations such as overflowing dumpsters and garbage in alleys.
• Track the volume of sanitation complaints over time from January 2011 to present to assess seasonal trends or policy impacts.
• Investigate the relationship between request completion status and reported violation types to evaluate departmental response.

Strengths

• Daily update frequency ensures the data reflects recent service requests.
• Covers over a decade of historical data, from January 1, 2011 to present.
• Explicitly labels duplicate complaints in the status field, aiding data cleaning.

Limitations

• Specific row count, column count, and sample data are unavailable for assessing dataset scale and structure.
• The dataset is historical-only and its function was replaced by another source, indicating potential maintenance gaps.
• Potential for geographic bias as data is limited to the City of Chicago.

Provenance

Source

City of Chicago Department of Streets and Sanitation.

Collection Method

Service requests logged through the 311 Customer Service Request (CSR) system.

Time Range

January 1, 2011 to present.

Freshness

Updated daily.

Geography

City of Chicago, United States.