DERR-2025-000084

WESTECH EQUIPMENT
195 WEST 3900 SOUTH • P.O. BOX 57307 • SALT LAKE CITY, UTAH 84157-0307
801-266-2545 • TOLL FREE 800-433-8831 • 24 HOUR FAX [phone]

MECHANICAL AND ELECTRONIC LINE LEAK DETECTOR PERFORMANCE TESTS
Facility Name: 7-Eleven 35267 Owner: 7-Eleven Inc
Address: 231 Highland Drive Address: PO Box 711
City, State, Zip: Draper, Utah 84020 City, State, Zip: Dallas, Texas
Facility I.D.#: 4002471 Phone #: 75221
Testing Company: Westech Phone #: [phone] Date: 12/27/24
This data sheet can be used to test the mechanical line leak detector (MLLD) and electronic line leak detector (ELLD) with submersible turbine
pump (STP) systems. See PEI/RP 1200 Sections 9.1 and 9.2 for test procedures.
Line Number 1 2 3
Product Stored RUL PUL DSL
Leak Detector Manufacturer Vaporless Vaporless Vaporless
Leak Detector Model LD2000 LD2000 LD2000
Type Of leak Detector
☒MLLD
☐ELLD
☒MLLD
☐ELLD
☒MLLD
☐ELLD
☐MLLD
☐ELLD
MLLD (ALL PRESSURE MEASURMENTS ARE MADE IN PSIG)
STP full operating pressure 32 30 35
Check valve holding pressure 30 28 32
Line resiliency (ml) (line bleedback volume as measured
from check valve holding pressure to 0 psig) 250 250 250
Step through time in seconds (time the MLLD hesitates at
metering pressure before going to full operating pressure as
measured from 0 sig with no leak induced on the line)
1 1 1
Metering pressure (STP pressure when simulated leak rate 3
gph at 10 psig) 20 20 20
Opening time in seconds (the time the MLLD opens to allow
full pressure after simulated leak is stopped) 3 2 4
Does the STP pressure remain at or below the metering
pressure for at least 60 seconds when the simulated leak is
induced? ☒Yes ☐No ☒Yes ☐No ☒Yes ☐No ☐Yes ☐No
Does the leak detector reset (trip) when the line pressure is
bled off to zero psig? ☒Yes ☐No ☒Yes ☐No ☒Yes ☐No ☐Yes ☐No
Does STP properly clycle on/off under normal fuel system
operating conditions? ☒Yes ☐No ☒Yes ☐No ☒Yes ☐No ☐Yes ☐No
A "No" answer to any of the above questions indicates that the MLLD fails the test.
ELLD (ALL PRESSURE MEASURMENTS ARE MADE IN PSIG)
STP full operating pressure
How many test cycles are observed before alarm/shutdown
occurs?
Does the simulated leak cause on alarm? ☐Yes ☐No ☐Yes ☐No ☐Yes ☐No ☐Yes ☐No
A "No" answer to the above question indicates that the ELLD fails the test.
Does the simulated leak cause an STP shutdown? ☐Yes ☐No ☐Yes ☐No ☐Yes ☐No ☐Yes ☐No
Test Results ☒Pass ☐Fail ☒Pass ☐Fail ☒Pass ☐Fail ☐Pass ☐Fail
Comments:
Tester’s Name Taber DeHart, UT-0394 Tester’s Signature