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Maintenance Data Ozone Sparge System-Operations and Maintenance STTC-East System <br /> Field Data Sheet 2526 West Washington Street <br /> Stockton,California <br /> Frequency Item to Inspect or Maintain Date Performed <br /> Monthly to Bi-monthly Check panel vent air filters(2). Clean or replace as necessary. <br /> ......................................... A <br /> Monthly to Bi-monthly Check Feed Gas Air Dryer filter bowl. A find dust may devetop over time on the finer,but no 03% <br /> 61V <br /> moisture should be present in the bowl. If moisture is present contact us <br /> ...... ............................................. ........ ............................ ............... ...... ----------- ................................... <br /> Check Feed Gas Air Dryer inside the system control panel: Red light should cycle on and <br /> Monthly to Bi-monthly off every few minutes,when exhaust gas is discharged. If exhaust air discharge is on <br /> continuously,contact USL <br /> ------------- <br /> Monthly to Bi-monthly Check all lines for moisture-ensure that the air compressor system is feeding dry air to the <br /> ozone generator panel. <br /> -------------- —------------- <br /> nthly to Bi-monthly Check HMI(touch screen)for system alarms and verify operation, <br /> . ................................. .......... __ - <br /> ---------------- ............................................................................ <br /> Bi-weekly Check int egrity of all hoses,fittings,piping,and valves <br /> Bi-weekly Inspecte ca ngs an tighten as needed 40.................................. ......... ................... .. <br /> Bi-weekty Check controller operation <br /> " .............................. <br /> As ...... <br /> 3 A ...... <br /> eeded Adjust controller program <br /> ..................................... .............. <br /> -weekly Check flow and pressure on assemblies(system and wells) <br /> Bi-weekly Take ozone readings at compound and well boxes <br /> ----------............................ <br /> Biweekly Take FID Readings <br /> ...............................------- <br /> Bi-weekly Check wellhead connections <br /> ..........._.___... ............ ....... .... .............................. <br /> Bi-weekly Check/test all safety override systems <br /> Bi-weekly Measure Compressor Running Amperage <br /> .................................. .... .. .................. <br /> Bi-weekly Check Compressor Oil <br /> As-Neededn <br /> filter — - <br /> Calcon Systems- 925-277-0665 <br /> NOTES AND DESCRIPTION OF ACTIVITIES ON SITE <br /> Page 3 of 3 <br />.... ......... ..... . . ..................................................I.... ... ..........I............. ................. <br />