Difference between revisions of "Seattle-King County Public Safety (KCERS)"

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[Misc. System Information
Dispatch Centers
When describing the assignment and use of specific trunked radio system talk groups in King County Washington it is useful to understand how the Public Safety Answering Points (PSAPs) handle 9-1-1 calls for police, fire and EMS services.
There are 11 PSAPs in King County:
. Bothell Police - Primary
. Enumclaw - Primary
. Issaquah Police - Primary
. NORCOM - Primary & Secondary
. Port of Seattle - Primary
. Redmond Police - Primary
. Seattle Police - Primary
. Seattle Fire - Secondary
. University of Washington - Primary & Secondary
. ValleyCom ¬- Primary & Secondary
. Washington State Patrol - Primary
The Washington State Patrol serves as the Primary PSAP for calls originating on Interstate highways.  Radio being an inexact science means that WSP will receive cellular calls which are not within WSPs jurisdiction and other Primary PSAPs receive some calls which must be transferred to WSP.
Except for Seattle Fire, all other PSAPs serve law enforcement agencies and when the call originates from within the area served by the PSAP, it will be answered by the PSAP serving the law enforcement agency.  For example, Redmond Police answers 9-1-1 calls that originate in Redmond and Duvall.  Calls for law enforcement service will be handled by Redmond.  Calls for Fire / EMS service are handled by NORCOM, which means that Redmond transfer the 9-1-1 call to NORCOM.
In consolidated dispatch centers (PSAPs), radio talk groups are assigned to optimize the radio dispatcher work load and the needs of the agencies.  A talk group may serve a single agency, part of an agency or more than one agency.
In King County fire agencies also provide emergency medical service (EMS).  Basic Life Support (BLS) is provided by Emergency Medical Technicians (EMTs) and Advanced Life Support (ALS) is provided by Paramedics.  All Firefighters are trained as EMTs.  Some firefighters are trained as Paramedics.  In South King County, paramedic service is provided by King County Medic One, not by the fire departments.  A useful summary of EMS providers in King County is available at  file:///C:/Users/Mark%20B.%20Nelson/Downloads/2013AnnualReport.pdf
King County Fire Agencies have consolidated 9-1-1 call answering and radio dispatching to four communications centers.  King County is organized in to fire zones, and mutual aid talk groups include zone numbers.  The fire zones and dispatch centers are organized as follows:
Fire Zone Communications Center      Comments
1          NORCOM                    Serves North King County
2          Decommissioned          Now Part of Zone 1
3          ValleyCom          Serves South King County
4          Decommissioned          Now Part of Zone 3
5          Seattle Fire          Serves City of Seattle
Fire agencies continue to consolidate and form regional entities that provide service to multiple fire districts and/or cities.
A Fire Zone map is available at
Agencies in King County are served by dispatch centers as follows:
1. Algona Police  ValleyCom
2. Auburn Police  ValleyCom
3. Beau Arts Police          King County Sheriff
4. Bellevue Fire  NORCOM
5. Bellevue Police  NORCOM
6. Black Diamond Police  ValleyCom
7. Bothell Fire  NORCOM
8. Bothell Police  Bothell Police
9. Carnation Police          King County Sheriff
10. Clyde Hill Police  NORCOM
11. Covington Police          King County Sheriff
12. Des Moines Police          ValleyCom
13. Duvall Fire    NORCOM
14. Duvall Police  Redmond Police
15. Eastside Fire and Rescue          NORCOM
16. Enumclaw Fire  Enumclaw
17. Enumclaw Police          Enumclaw
18. Fall City Fire  NORCOM
19. Fall City Police  King County Sheriff
20. Federal Way Police  ValleyCom
21. Hunts Point Police  NORCOM
22. Issaquah Police  Issaquah Police
23. Kenmore Police  King County Sheriff
24. Kent Fire  ValleyCom
25. Kent Police  ValleyCom
26. King County  King County Sheriff
27. King County Medic One  ValleyCom
28. Kirkland Fire  NORCOM
29. Kirkland Police  NORCOM
30. Lake Forest Park Police  Bothell Police
31. Maple Valley Police  King County Sheriff
32. Medina Police  NORCOM
33. Mercer Island Fire  NORCOM
34. Mercer Island Police  NORCOM
35. New Castle Police          King County Sheriff
36. North Bend Police          King County Sheriff
37. Northshore Fire  NORCOM
38. Pacific Police  ValleyCom
39. Redmond Fire  NORCOM
40. Redmond Police          Redmond Police
41. Renton Fire  ValleyCom
42. Renton Police  ValleyCom
43. Sammamish Police          King County Sheriff
44. SeaTac Airport Fire  Port of Seattle
45. SeaTac Airport Police  Port of Seattle
46. SeaTac Fire  ValleyCom
47. SeaTac Police  King County Sheriff
48. Seattle Fire  Seattle Fire Alarm Center
49. Seattle Police  Seattle Police Communications
50. Shoreline Police  King County Sheriff
51. Shoreline Fire  NORCOM
52. Skykomish Police          King County Sheriff
53. Skykomish Fire  NORCOM
54. Snoqualmie Police          Issaquah Police
55. Snoqualmie Pass Fire  NORCOM
56. Tukwila Fire  ValleyCom
57. Tukwila Police  ValleyCom
58. University of Washington Police    University of Washington
59. Woodinville Police  King County Sheriff
60. Yarrow Point Police  NOCROM
9-1-1 calls from Normandy Park are answered by the Fife Police Communications Center, which dispatches Normandy Park police officers and transfers calls for fire and EMS service to ValleyCom, which dispatches the Burien Fire Department (King County Fire District #2).  Fife is located in Pierce County.
The use of each talk group and the agencies that typically use the talk group is indicated in the tables identifying the talk group numbers.
Trunked Radio System
The King County trunked radio system is made up of three subsystems known as:  Seattle, EPSCA (Eastside Public Safety Communications Agency) and KC / VC (King County / ValleyCom).
The reason there are three subs-systems is primarily because of politics.  For the scanner user, the three sub-systems present some challenges because of the way that talkgroups are served and the limited, yet often overlapping, radio coverage from each of the sub-systems.  Newer scanner technology which allows control channels for multiple systems to be configured in a single scanner system reduce the complexity of needing to know which sub-system will carry the talkgroup traffic, but the overall system configuration means that there will be instances when a talkgroup may not be carried on the subsystem that the scanner is affiliated with.
Additional information may be found at ]

Revision as of 10:38, 26 April 2014