10-37
10
CSLD Troubleshooting
Actual CSLD Test Problems Analyzed
I61101
MAY 7, 1999 10:13 AM
LEAK
TEST
<------START TEST TIME------>
TEST
TEST
TEST
START
TANK
METHOD
TYPE
HOURS
METHOD
YEAR
MONTH
DAY
OCCUR
HH:MM
----
-----
----
-----
------
----
-----
---
-----
-----
8
CSLD
PER.
AUTO
CSLD
9
NONE
Analysis
Tanks 8 and 9 were manifolded and programmed as manifolded. However, the leak test frequency selected for
Tank 9 was not CSLD. The CSLD program was only using Tank 8’s volume to perform the test. When Tank 9 was
filling, Tank 8’s LRATE was positive.
Solution
Set Tank 9’s Leak Test Method to CSLD and delete tank 8 and 9 rate tables.
CSLD PROBLEM 11 - PERIODIC TEST FAIL TANK 2
Diagnostics
200
Site ID
Site ID
Site ID
NOV 16, 1999 1:06 PM
TANK PRODUCT GALLONS INCHES WATER DEG F ULLAGE
1 REGULAR 8543 61.99 0.0 77.4 3139
2 PLUS 3705 32.53 0.0 85.2 7977
3 SUPREME 6024 46.50 0.0 80.4 5658
__
76687IA5100_
IA5100
NOV 16, 1999 1:06 PM
CSLD DIAGNOSTICS: RATE TABLE
T 2:PLUS
TIME ST LRT AVTMP TPTMP BDTMP TMRT DSPNS VOL INTVL DEL ULLG THPT
9910181409 3 -1.252 98.7 97.2 98.9 0.36 734 601 50.0 26.5 717 2.4
9910181537 6 -0.824 99.2 97.2 98.9 0.39 582 599 142.0 28.0 717 2.4
9910190355 1 -0.464 91.4 96.5 98.9 0.28 432 2783 14.0 9.1 572 2.4
9910192324 3 -0.132 96.6 96.9 98.9 -0.21 898 1474 52.5 28.6 646 2.4
9910200241 3 -0.152 96.0 96.6 98.9 -0.13 753 1445 143.5 31.9 648 2.4
High 90s inconsistent with other tanks.