| Code | Description |
|---|---|
| UNKN | Unknown |
| SHOP | Located per the shops location |
| PLAN | Located per construction plans |
| GPSM | GPS Mapping grade (prior to 1999) |
| CONN | Connects to an asset located with GPS survey grade |
| GPSC | GPS survey grade - Coordinates shown are accurate, asset location moved for map scale purposes |
| DGTL | Digital - Outside/unknown source |
| GPSS | GPS survey grade |
| AYH | Ayres Professional Group/Ayres-Harrison |
| BSI | Bayview Surveying, Inc. |
| CREC | Rectified data based on city cadastral |
| C-UN | City cadastral based - unknown direct source |
| CBPR | City cadastral based - proportioned |
| CC | Christie & Christie Land Surveying |
| CK | Conrad Kohen Land Surveying |
| CITY | City cadastral based - City survey staff calculations |
| CS | Construction Surveyors |
| DEA | David Evans & Associates |
| HUDS | Hudson Engineering |
| JEP | Ron Jepson |
| JON | Jones Engineering Inc. |
| KJEL | Marin Kjelstad |
| LSA | Larry Steele & Associates |
| NWS | Northwest Surveying & GPS |
| PSE | Pacific Surveying & Engineering |
| PORT | Port of Bellingham |
| RAP | George H. Raper & Associates |
| R&E | Reichardt & Ebe |
| TORR | Torrence Surveying |
| WED | Weden & Associates |
| WIL | Wilson Engineering |
