DRC-2025-001986

299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111
[phone] ▪ Fax: [phone] ▪ www.energysolutions.com
June 19, 2025 CD-2025-130
Mr. Doug Hansen, Director
Division of Waste Management and Radiation Control
P.O. Box 144880
Salt Lake City, UT 84114-4880
Subject: Ground Water Quality Discharge Permit No. UGW450005 (GWQDP): Water
Detection Sensors
Dear Mr. Hansen:
Water detection sensors are an integral part of BAT monitoring systems at the Clive
Facility, alerting inspectors to the presence of water in features such as secondary-
containment pipelines and manholes where water should not be present. The water
detection sensors currently in use at the facility, Global Water model WA600, have been
discontinued by the manufacturer. As these existing sensors fail, EnergySolutions will
replace them with a functional equivalent: the Dwyer Omega model IP68. The WA600
has recently been discontinued and is no longer available for purchase. Currently, the
IP68 is used as the Restricted Area Gray Water Tank sensor in the LLRW Operations
Building and is a proven sensor at the Clive Facility. The specification sheets for each
model are attached and document that the functionality of the IP68 will be equivalent to
the WA600.
Should you have any questions or require additional information regarding this response,
please do not hesitate to contact me directly at [phone].
Sincerely,
Mathew R Schon
Manager, Groundwater and Environmental Program
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance
with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry
of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
WA600 Water Alarm Sensor
High and Low Level Water Detection Device

Description

The WA600-W Water Level Alarm Sensor is a solid state
sensor for detecting fluid presence in spill, rising water, or
precision level monitoring situations (WA600-W version).
The WA600 can also be purchased to trigger an alarm
upon contact with air for low water level detection
(WA600-A version). The WA600 is rugged and durable
and requires minimal maintenance.

Simple Operation
The WA600 includes a pair of stainless steel electrodes
that you can position at a desired distance for liquid
detection. When fluid is detected, a relay closes in the
water level alarm, and the signal can be used to sound an
audible alarm or close a switch in a remote monitoring
device. After the WA600 comes out of the water, the
sensor automatically resets without the need for
additional service.

Many Uses
The Water Level Alarm can be used in a variety of
applications, including surface water monitoring, precision
level detection, water level control, high water indication,
and submersible marine low level indication.

• Rugged fluid detection
• Fully submersible
• Available with alarm on water or air contact

Specifications

Electronics: Solid state, fully encapsulated in epoxy. Electrodes: 304 stainless steel
Cable: 4 wire shielded; 25' length (may be extended to 500')
Input Voltage: 12 VDC to 36 VDC
Current Draw: Continuous 5mA, Active 44 mA
Alarm Output: Switch closure, 400mA Maximum Isolated Relay
Dimensions: 1" dia. x 5" long (2.5 cm dia. x 13 cm long) Weight: 6 oz (170 g)

Options and Accessories
WA600-W Water Alarm Sensor
(Alarm on contact with water)

WA600-A Water Alarm Sensor
(Alarm on contact with air)

WQEXC Extra cable
Up to 500’ total cable per sensor.
Ultrasonic level sensors
U Not Sensitive to Changes In Viscosity, Density, or Conductivity
U SPST Relay Standard
U Resists Vapor and Turbulence
U NEMA 6 (IP68) Submersible Sensor and Cable
OMEGA’s ultrasonic sensors deliver accurate and reliable liquid level detection with an SPST mechanical relay output. The technology provides a high level of ultrasonic sensitivity, including resistance to vapor and turbulence. The ultrasonic sensor utilizes a fork‑shaped sensor which contains two piezoelectric crystals, one of which acts as the ultrasonic transmitter, and the other as a receiver. If the air gap between the points of the fork fills with liquid, the sonic wave passes from one crystal to the other.
SPECIfICATIoNSAccuracy: ±1 mm (0.04") in waterRepeatability: ±0.5 mm (0.02") in waterDead Band Hysteresis: 1 mm in waterVoltage Input: 12 to 36 Vdc
Current output: 25 mA maximumRelay:
GP: 120 Vac/Vdc @ 1 A
CE: 60 Vac/Vdc @ 1 ASwitch Mode:
Selectable, NO or NC statesWetted Materials: Polypropylene (PP)
or Perfluoroalkoxy (PFA)
Temperature Rating: ‑40 to 80ºC
(‑40 to 176°F)Maximum Pressure Rating: PP:150 psi @ 25°C (76°F) derated @ 1.667 psi per °C above 25°C (76°F)
Loop Resistance: 600 Ω @ 24 Vdc
Standard Cable Length: 3 m (10')
Maximum Cable Length: 305 m (1000')Dimensions: 76.2 or 114.3 L x 26.7 mm Dia. (3.0 or 4.5 x 1.05") (3⁄4 NPT)Enclosure Rating: NEMA 6 (IP68) submersible sensor and cable
LVU-150-R Series
LVU-152-R shown larger than actual size.
LVU-150-R shown actual size.
Cutaway View.
To Order
Model No. Description Material Size (inch)
LVU-150-R Ultrasonic sensor PP 3 x ³⁄₄ NPT
LVU-151-R Ultrasonic sensor PFA 3 x ³⁄₄ NPT
LVU-152-R Ultrasonic sensor PP 4.5 x ³⁄₄ NPT
LVU-153-R Ultrasonic sensor PFA 4.5 x ³⁄₄ NPT
Comes complete with operator’s manual and 3 m (10') cable.
Two extended cable lengths available. For 7.62 m (25') add suffix “‑25” to model number, for PP models, or PFA models, for additional cost. For 15.24 m (50') add suffix “‑50” to model number for PP models, or PFA models, for additional cost.
Ordering Examples: LVU‑150‑R, polypropylene ultrasonic sensor, 3 x 3⁄4 NPT
LVU‑153‑R, PFA ultrasonic sensor, 4.5 x 3⁄4 NPT.
3⁄4 NPT
K-33
19 mm(0.75")
57 mm(2.25")