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UST Programs - LG 113
Date: November 22, 1995
Tidel Engineering, Inc.
Liquid Discriminatory Probes Part 301-0635, Containment
Sump Probes Part 301-0642,
INTERSTITIAL DETECTOR (LIQUID-PHASE)
*California requires annual certification of all leak detection equipment. The certification of discriminating sensors should include functional testing of both water and product detection capabilities.
Model 301-0635 and 301-0642: Currently the SWRCB UST Program staff discourages the use of polymer strip discriminating sensors at new installations in California. This is due to concerns about the impact that repeated/prolonged exposure to hydrocarbons may have on the sensor's ability to alarm and recover from alarm reliably. Since current evaluation protocols do not address this issue, no new polymer strip sensors should be installed until new evaluation protocols are in place.
"high" and "low" refer to high and low
level alarm points of hydrostatic sensors.
Results (in addition to above for Liquid Discriminatory Probes
Part 301-0635 and Containment Sump Probes Part 301-0642):
on this list is not to be construed as an endorsement by any regulatory
agency nor is it any guarantee of the performance of the method or equipment.