HomeMy WebLinkAbout2012 CP RESULTSOctober 18,, 2012
Fast Break
4800 White Lane Suite 0
Bakersfield, CA 93309
Re: Fast Break
4800 White Lane Suite 0
Bakersfield, CA 93309
A Cathodic Protection certification test was performed at the above location
on October 16,, 2012. Upon arrival at the site a visual inspection was
performed on the anode connections, rectifier and cathodic protection test
leads. The rectifier settings and outputs were noted and the test was
performed using a copper-copper sulfate reference cell in contact with the
earth and a digital multimeter. The following readings were then obtained:
On (mv) Off (mv)
Tank 1
-1017
-468
Tank 2
-1021
-466
Tank 3
-1026
-468
Tank 4
-1028
-469
The above structure-to-soil potentials were measured with a digital volt
meter connected between the underground storage tank and a saturated
copper-copper sulfate reference electrode in contact with the earth. The
readings were taken in tank fills. The copper- copper sulfate cell was placed
in the planter southeast corner of the lot.
Structure -to -soil potentials measurements for each tank exceed the
recognized NACE international criteria of -850 millivolts and 300 millivolts
shift for full cathodic protection.
The Rectifier settings and outputs are as follows:
Output dolts 49 D.C. Amps 2.5
Setting Coarse D Fine 3
Hourmeter 24992
This survey was conducted in accordance with the procedures described in
the NACE International Standard Recommended Practice RP0285 -951
Corrosion Control of Underground storage Tank Systems by Cathodic
Protection and American Petroleum institute (API) Recommended Practice
1632, Cathodic Protection of Underground Petroleum storage Tanks and
Piping systems,
This system is operating as designed and all underground storage tanks
are receiving the required protective current.
Thank you for the opportunity to assist you in this phase of your corrosion
mitigation program. Should you have any questions or concerns please do
not hesitate to contact us at any time.
Respectfully,
Juliana Sessions
Professional Engineer: Robert Paul, P.E.
Address: 2243 Aspen Mirror Way, Ste. 204, Laughlin, NV 89029
Signature:
Registered Professional Engineer No. Corrosion 111
Expiration Date: 3/31/2014