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d t SWRCB, January 2002 Ll 7. UNDER -DISPENSER CONTAINMENT (UDC) TESTING Page 5 of 7 Test Method Developed By: ❑ UDC Manufacturer ® Industry Standard ❑ Professional Engineer ❑ Other (Specify) Test Method Uses: ❑ Pressure ❑ Vacuum ® Hydrostatic ❑ Other (Specify) Test E ui ment Used: INCON TS -STS SUMP TESTING SYSTEM E ui ment Resolution: 0.001" UDC # UDC # U DC# UDC # UDC Manufacturer: UDC Material: UDC Depth: Height from UDC Bottom to Top of Highest Piping Penetration: Height from UDC Bottom to Lowest Electrical Penetration: Condition of UDC prior to testing: Portion of UDC Testedl Does turbine shut down when UDC sensor detects either roduct or water?* Turbine shutdown response time2* Is system programmed for fail- safe shutdown?* Was fail-safe verified to be operational?* Wait time between applying pressure/vacuum/water and starting test: Test Start Time: Initial Reading Ri): Test End Time: Final Reading (Rf): Test Duration: in Reading Rf-Ri —Change Pass/Fail Threshold or Criteria: Test Result: Was sensor removed for testing? Was sensor properly replaced and verified functional after testing? Comments - (include information on repairs made prior to testing, and recommended follow-up for failed tests) If the testing method does not test the entire depth of the UDC, specify how much of the UDC was tested. Methods not testing the entire UDC should only be used if the monitoring system provides fail-safe shutdown. (See SWRCB LG -160) 2 With the submersible pump running, place the sensor in product (discriminating sensors should be placed in water). The time between placing the sensor in product and the turbine shutting down is the response time. This should be done if the secondary containment method used does not test the entire volume of the UDC. * This information is not needed if the entire sump is tested. Revision: