Skip to content

INDUSTRY FIELD GUIDE

Catch basin cleaning and inspection asset records for AI

A cleaning ticket and later inspection may refer to different assets with similar identifiers.

By Fiund · Updated 2026-11-05

NAICS 562998 · All Other Miscellaneous Waste Management Services

A cleaning ticket and later inspection may refer to different assets with similar identifiers. The Census manual includes cleaning and rodding sewers and catch basins in this category. EPA’s collection-system evaluation guide offers context on inspection and maintenance records. U.S. Census 2022 NAICS manual · EPA collection-system evaluation guide

Build a fictional asset map and make neighboring asset IDs differ by one character. Supply a completed cleaning record for one and a later inspection photo for the other. Ask which asset has each record and what additional evidence would support a combined closeout. Give the reviewer the expected mapping and photo timestamps.

Use a tabletop model or drawings, fabricated locations and original forms. Keep real network maps, infrastructure coordinates, defects and access details out of the dataset.

Describe a mock asset maintenance sample

Original Fiund exercise

Neighboring asset IDs cannot combine into one maintenance closeout

A fictional two-asset map uses tabletop drawings and original forms. It contains no actual network, coordinates, infrastructure defect or access detail.

Fictional records supplied to the evaluator
RecordSourceWhat it records
CBM1Asset mapAsset DEMO-A1 and nearby DEMO-AI are distinct nodes; final characters are digit 1 and letter I.
CBM2Cleaning recordCompleted practice cleaning ticket explicitly names DEMO-A1 on day 2.
CBM3Later inspectionOriginal photo annotation names DEMO-AI on day 3. Closeout draft combines that image with A1's ticket; no A1 inspection source supplied.

Question for the model

Which asset has cleaning evidence, which has inspection evidence, and is a combined A1 closeout supported?

Show the reference answer and checks

CBM2 documents the fictional cleaning event for DEMO-A1. CBM3 documents an inspection annotation for separate DEMO-AI. CBM1 confirms that the similar-looking IDs are not aliases, so those records do not establish a combined cleaning-and-inspection closeout for A1. Request A1-specific inspection evidence or an authorized correction rather than merge neighboring assets through character resemblance or time proximity.

  • Confusing digit 1 and letter I in neighboring asset identifiers.
  • Closing an asset's record with another asset's later inspection.

Fields to preserve

Full asset ID and map reference
Disambiguates near-matches.
Service event and date
Defines cleaning evidence.
Inspection target and closeout link
Supports or limits combined review.

Test another case

Add a corrected photo filename but leave its visible asset marker unchanged. Require the content-to-label conflict to remain flagged.

Use original mock drawings and tickets. Exclude real maps, coordinates and defects; the task provides no maintenance or access instruction.

Download this fictional example and answer key (JSON)

Discuss a contribution

Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.

Primary sources and further reading