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~~ <br /> <br />RE'sPORT OF UNDESII2ABLE EVENT <br />DATE/I'IIvIE OCCURRED 12/26/98 1500 DATE /LIME REPORTED BLM: 12/28/98 1100 <br />LOCATION: NE 1/4, SWl/4 QTR QTF:, SEC. 26 T. I/S R. 98W 6TH Meridian <br />County: Rio Blanco Stale: Colorado <br />WELL/FACILffY NUMBER: 91-1 V OPERATOR: White River Nahcolite <br />SURFACE OWNERSHIP: Federal Indian Fee Smte <br />LEASE NUMBER: C-0118327 UMT NAME/CA NUMBER: <br />TYPE OF EVENT: Blow out fire Fatality Injury Property Damage <br />Oil Spill Saltwater Spill Toxic Fluid Spill Gas Venting <br />OiUSaltwater Spill OiVCoxic Fluid Spill <br />Other (specify): Sodium bicarbonate -barren liquor <br />CAUSE OF EVENT: Due to extreme cold weather, (down to -22 degrees F.), a 2" barren liquor line to the old production wells <br />91-1 V (cavity #2) and 93-3 V (cavity #3) IYoze sometime prior to 12/26/98. As a result of freezing, the pipe failed or split at three <br />locations between 91-1 V and 93-3 V. W,~tmter temperatures on 12/26/98 allowed flow from barren liquor line to leak through 2" <br />pipe to split sections of pipe and flow on the ground and down We hill approximately 600' to near the natural gas substation. <br />Approximately one fool of snow slowed down the rate of overland flow and spill did not reach the dry strearn bed east of natural <br />gas substation. The 2" valve for pipe corning from the 8" barren liquor line was defective or inoperable from build up of bicarb <br />scale. Therefore, [he two inch pipeline h:~s been pressurized for several years, but did not fail until 12/98 cold temperatures caused <br />damage to pipeline. The inoperable valve should lu~ve been replaced years ago. <br />S'rLr w,l.c <br />VOLUMES OF POLLUTANTS: Disch;trged/consumed: Aporoximately 14,000aallons ~~• /„~J- <br />Recovered: None ""' d <br />TIME REQUII2ED TO CONTROL EVEIJT (in hotus) 2 hours /`'~ cd ~}f'f" <br />i-~-SS <br />ACTION TAKEN TO CONTROL EVENT, DESCRIP'T'ION OF DAMAGE, CLEAN UP PROCEDURES AND DATES: A WRN <br />maintenance worker noticed the steun from the leak at approximately 1700 and operations was notified immediately to shut down <br />the production wells. Loss of barren liquor Link volumes had been noticed shortly prior to notification of the leak. Based on tank <br />levels and barren liquor line pressure, leak was for approximately 140 minutes. After flow was shut off a 2" plug was installed in <br />valve to eliminate flow to 2" pipeline. Prior to use of the 2" pipeline a new valve will have to be installed. <br />CAUSE AND EXTENT OF PERSONNEL [NJURY: None <br />OTHER FEDERAL, STATE AND LOC/J. GOVERNMENT AGENCIES NOTIFIED: llMG <br />ACTION TAKEN TO PREVENT RECURRENCE: As inspection of all 2" wash water and barren liquor lines off the main lines <br />will be made [o verify valves are turned ofl'. [n the future inoperable values will be replaced immediately if stuck in open position. <br />Operators will be reminded to watch for I:.~dcs during daily welUpipeline inspections, and if flows, line pressures or tank levels <br />change unexpectedly, they should suspect a leak in well field piping. Next summer the 600 x 5 foot spill area will be assessed for <br />reseeding and reclamation. <br />GENERAL REMARKS: <br />RECEIVED BY: <br />(name) and (title) <br />fJreF, . ed ~ ~~.~" ~(rY <br />Gc1 ~ '~ <br />~'o r~s rP ~ ~7 S <br />DATE: <br />