November 14, 2025
Peter Keum, FAA Part 107/GISP
King County Wastewater Treatment
Drone Program Lead/ GIS Analyst
Peter Keum, GISP
Drone Program Lead/GIS Analyst
CUGOS
So Let's Dive In!
King County Wastewater Treatment by Numbers
2 million residents
34 Agencies
424 square miles
383 miles sewer pipeline (2.5 inch to 14 ft)
74 facilities (PS & RS)
3 Treatment Plants: 180 MGD ~ Max. 460 MGD
Seattle, WA --> Medford, OR
Supervisor
WTD
GIS
DATA
GIS Data:
The core of a GIS is its Database
BUT.....There are 17 county agencies support
King County GIS Data Library System
WTD
GIS Data:
The core of a GIS is its Database
Integrated gyroscopic/GPS Chip in 2000's = $10,000
In 2017 = $3
1981 $120,000
2013
$5 - $15
In 2025 = $3 (??) less than $1
UAV = Unmanned Aerial Vehicle
UAS = Unmanned Aerial System
DRONE = Dynamic Remotely Operated Navigation Equipment
RPAS = Remotely Piloted Aircraft System
Small
Medium
Large
Understand recreational flying requirements
Take TRUST
Online recurring training every 24 month
Multi-rotors
Fixed-wing & VTOL
(vertical take-off & land)
Outdoor
Indoor
1. Aircraft + Sensor (Data Collection)
2. Data Processing & Analyzing (GIS)
3. Information Products
+
1. Platform + Sensor (Data Collection)
2. Data Processing & Analyzing (GIS)
3. Information Products
Great Combo?
People
+
Technology
+
Organization
=
(drone)
Joe
DJI Mavic 2 Pro (1)
Mavic 2 Ent. Adv. (1)
Mavic 3 Ent (2)
2021
2022
2023
Matrice 4 Ent. (1)
2025
Total: ~ $27,000
DJI Mavic 2 Pro < $1,800 (Retired)
DJI Mavic 2 Pro Ent. Adv $6,500
DJI Avata $1,300
Mavic 3 Ent (2x)
$3,800
20 MP/ 56x zoom
20 MP
12 MP/ 32x zoom
+ Thermal
Matrice 4 Ent
~ $5,300/ $8,500
2021
June - Dec.
2023
Number of Flights
2022
2024
2025
Jan. - Oct.
Helping KC Parks
Helping KC Parks
Automatic
Repeatable
Flight Control App
Safety of staffs
Save Time & $$
South Treatment Plant
Primary Division Channel
Data Processing - Efficient
Safety of staffs & Save Time & $$
West Point
Treatment
Plant
Discovery Park
Blvd
Dec 2024
0.57 in/px
Sept 2023
3.0 in/px
2023 KC Aerial
0.50 in/px
June 2025
(from KC Aerial Imagery - June 2025)
West Point Treatment Plant Raw Sewage Pump Building
March 2022
April 2024
August 2025
West Point Treatment Plant ISP Replacement (2023)
Ship Canal Water Quality - TBM (2023)
Heat Resource Recover - Energy District (Dexter Ave)
Lidar SLAM Handheld Unit
Video of Scan Path
(Lidar data + Camera photo ) x Gaussian Splatting = below
Lidar SLAM Handheld Unit
Examples
Lidar SLAM Handheld Unit
Examples
General Purpose Technology NOT ChatGPT
Steam Engine
Electricity
Companies are thinking more creatively about how to combine location with outside content and internal business data to differentiate products
YOU
Tobin Bradley, Mecklenburg County, NC
Famous Original Quote
They Both are RIGHT!
1.1
Let's not forget the FUN (part)
1.1
Washington GIS Association Drone Special Interest Group