EVENT LOG FOR SITE BVX Most recent activity to be listed first. First line of each entry lists date, time and who is reporting. Subsequent lines of each entry aligned under Time column. Do not use tabs, only spaces. Date Time Who What ---------- ----- -------- ----------------------------------------------- 08/01/2002 10:30 Dave Since data collection has terminated for the season, I disabled the file upload check option in etc/sites. 07/24/2002 18:08 Dean PIT tag interrogation and sample collection at PH1 concluded for the season at 1600 on 23 July. This action was agreed upon by FPAC and PSMFC Smolt Monitoring Program to terminate operations in PH1 due to shifting of unit priority to PH2, an emphasis on spill, removal of most STS's at PH1, and the improbable event that the low priority PH1 units would be operated for the remainder of the season. 07/19/2002 16:54 Dean A facility outage occurred at powerhouse one from 1745 on 17 July to 1445 on 18 July to adjust and repair the misaligned small dewatering sweep's brush mechanism. 07/04/2002 16:33 Dean On 4 July, the Add-In valve in the DSM-1 channel was plugged and flushing almost constantly making it is impossible for the system to maintain stable water levels. The near constant flushing was ineffective in clearing the Add-In screen, as was the air burst cleaning system. The CoE mechanics were unavailable over the 4th of July weekend. As a result, the DSM-1 channel (and BVX) will be out of operational service from 1400 on 4 July until at least the morning of 8 July when repairs can commence. More details pending. 06/28/2002 15:29 Dean BVX was out of service from 2040 on 24 June through 1435 on 25 June to repair the small dewatering screen's trash sweep. 06/25/2002 12:50 Dchase I am on site and I checked B2A for loading and the files were loaded at 06:00. I will check BVX as well but iam sure that those files were sent as well. 06/24/2002 12:14 Dean BVX flat plate was inoperative from 1125 to 1300 on 20 June. The flat plate was removed during that time period due to unstable flows in the bypass channel. The erratic flow was apparently caused by the South Channel Release Gate discovered in the open position. The release gate was closed, normal flows were restored, and BVX resumed interrogation at 1300. 06/11/2002 12:56 Dean The BVX flat plate was out of operational service from 1715 through 1856 on 10 June. This outage was necessary to perform adjustments and minor repairs to the equipment stemming from the minor damage that occurred on 8 June. Total outage time 1 hr 36 min A stick test was run after adjustments were made. Results indicated 100% reading efficiency. 06/11/2002 12:48 Dean At approximately 0620 on Saturday, 8 June the plastic cover on the flat plate buckled and separated from the upstream edge. This was caused by flooding in the channel. Flooding was derived from several units being turned on. Repairs were completed at 0810 when BVX returned to service. Total outage 1 hr 50 minutes from 0620-0810. After the flat plate was back in service the operator ran a stick test and results were good, 95% or better. 06/07/2002 16:26 Dean PIT tag interrogation ceased at BVX from 0900 - 1415 on 7 June. Facility was dewatered to correct broken screen sweep brush arm, which became separated from the drive chain. PIT tag interrogation resumed at 1415 on 7 June. 05/06/2002 11:06 Scott_Li Set the file submission frequency to upload 4 times per day. 05/03/2002 09:53 Scott_Li Changed the number of files generated per day to 4 on both primary and backup computers at 0850pst. 04/24/2002 09:14 Edmund_N Ed Nunnallee 19 Apr 02 Flat plate periodic check Completed touchup tuning of transceivers; read range for all is 4" or greater. Small misalignment of top section of vertical track for trap trolly causes a lurch in operation when retreiving or setting trap. Problem is not serious, but will eventually wear rubber tire of trolly. Foam rubber ball on limit switch actuator arm at top of trap travel is very worn, and should be replaced. Further wear will change upper extent of allowable trap travel, and may allow flat plate to strike the top beams of the winch structure. 04/24/2002 08:16 Dean On Wednesday, 17 April at 2130 the Flat Plate went out of operational service. This outage was necessary to repair damage to the Flat Plate lifting bushings and to replace the fiberglass flap on the downstream end of the small dewatering screen. BVX Flat plate operations returned to service and PIT tag detections resumed at 1630 on 23 April. 04/22/2002 12:28 carters@ Date: Sat, 20 Apr 2002 11:12:25 -0700 From: Earl Prentice To: "Mackey Tammy M NWP" CC: Carter Stein , Rick Martinson Subject: Bonn Flat-plate Tammy, Ed Nunnallee and I inspected the PIT-tag flat-plate system on 19 April. We found two problems that the COE should address. First, the rubber ball that is attached to the winch shut off lever is almost gone. If this is not repaired the collection basket and PIT-tag antennas will be forced into the metal framework. Second problem noted was with the back two vertical guide rails that that the collection box is in contact with. Both vertical rails are out of alignment at the joints. A noise and vibration is created when the box passes these points. Damage to the box guide wheels will result if this problem is not corrected. 04/18/2002 13:21 Dean On Wednesday, 17 April at 2130 the Flat Plate went out of operational service. This outage is necessary to repair damage to the Flat Plate lifting bushings. The outage will continue until further notice. More updates to follow. 04/17/2002 13:46 Dean The DSM-1 BXV Flat plate was out of operational service from 1330 on Sunday 14 April to 1030 on Tuesday, 16 April. The DSM-1 channel was dewatered to repair small screen sweep. PIT tag detections resumed upon return to service. 04/15/2002 11:22 Dave According to the Corps Biologist, "The DSM was dewatered around 0800 [4/15]. The mechanics are working on the sweep now." 04/15/2002 07:18 Carter_S From: "Dean" To: "Tammy M Mackey" , "Jennifer D Sturgill" Cc: "Rick Martinson" , "Carter Stein" , "Fish Passage Center" , "Jeff Kamps" Subject: DSM-1 small Screen sweep breakdown Date: Sun, 14 Apr 2002 15:46:51 -0700 Jennifer and Tammy, The DSM-1 small screen sweep failed at Approx 1330 today (Sunday). Control room operators inspected the component and decided it was truly broken. They said they would contact you to make arrangements to dewater the DSM tomorrow morning. DSM Flat plate personnel said for the past several days it was necessary to run the sweep frequently (minimum of several times hourly) to maintain optimal passage conditions. The necessity to run the sweep more often corresponds to the current heavy debris load in the river. Since the small sweep is not functional, it is currently impossible to maintain obstruction free fish passage conditions. As a result, the PIT tag detection components have been removed from the channel, the DSM-1 channel has been returned to Fish Passage Plan mode, and PSMFC flat plate monitors have been sent home. Let's talk Monday morning to discuss arrangements to repair the sweep and get the system back in operational service as soon as possible. Thanks. 04/14/2002 16:53 Dean The DSM-1 small screen sweep failed at Approx 1330 today (Sunday). Given the current heavy debris loads and since the small sweep is not functional, it is currently impossible to maintain obstruction free fish passage conditions. The channel will need to be dewatered to repair the problem screen sweep. As a result, as of 1430 Sunday, 14 April the BVX PIT tag detection components have been removed from the channel. 04/01/2002 15:26 Dean 24 hour PIT tag detections began at BVX at 0800 on Monday, April 1. 03/29/2002 08:32 Carter_S Date: 29 March 2002 From: Earl Prentice, NMFS Subject: Update on PIT-tag reading tests conducted on the Bonneville Dam flat-plate (pass-by) interrogation system On 27 March tests were conducted on the Bonneville Dam flat-plate (pass-by) interrogation system to determine system PIT-tag reading efficiency. The pass-by system at this site consists of two antenna housings, each containing two antennas. Looking upstream and starting on the left side of the upstream antenna housing, the antennas are numbered 01 and 02 while the antennas in the downstream housing are numbered 03 and 04. In past years both PIT-tagged juvenile salmon and PIT-tagged sticks were used to determine system tag reading efficiency. Past result showed that stick test results were similar to fish results if the tests were properly conducted. Based upon this information only stick tests are being conducted in 2002 to determine system tag reading ability. At the time of testing the water level over the pass-by interrogation system was adjusted to a level representing that during normal operation. A stick housing a PIT tag was attached to a line which was in turn attached to a fishing pole. The pole was used to position the PIT-tagged stick upstream of the upstream antenna housing. A test run consisted of lowering the stick into the water and allowing it to free float over two antennas e.g. 01 and 03 or 02 and 04. The stick was retrieved and the process repeated until a pre determined numbers of test runs were completed per replicate. On occasion a stick would become crosswise to water flow. This condition normally resulted in the tag not being read because of its improper orientation to the electromagnetic field produced by the antenna that activates the tag. When this condition was observed during testing it was noted in the record. The first test consisted of passing the tag over antennas 01 and 03 nine times. This was counted as one replicate. A total of 22 replicates were conducted, thus the tag was passed over both antennas a total of 198 times. One tag was missed on both antennas 01 and 03 during replicate 11 and one missed on antenna 03 during replicate 13. On all occasions the tag was seen to be out of orientation while passing over the antenna and thus no tag was read. Overall tag reading efficiency, counting the tags that were out of orientation and thus not read, was 99.49% (1 miss out of 198 tags) for antenna 01 and 98.99% (2 misses out of 198 tags) for antenna 03. The next test was conducted on antennas 02 and 04. The same procedures were used as previously described. Only two replicates consisting of 9 and 10 passes of the tag over the antennas were performed prior to stopping the test. Four tags were missed on antenna 02 during the first replicate while five tags were missed on the second replicate. No tags were missed on antenna 04. The missed tags were in proper orientation during the test thus suggesting a tag reading problem with 02 antenna/transceiver system. The tag read problem was corrected and all four transceivers were returned and all tests were repeated. The first test after correcting the tag read problem on antenna 02 and retunning all of the other antennas was to repeat the test on antennas 01 and 03. This time 10 passes of the tag over the antennas were performed per replicate. A total of 10 replicate tests were conducted for a total of 100 tags over each of the two antennas. Results showed no tags missed on either antenna 01 or 03 (i.e., 100% tag detection). This test was followed by a similar test on antennas 02 and 04. Results showed that one tag was missed on antenna 02 during replicate eight thus tag read efficiency was 99% (1 miss out of 100 tags) for that antenna. Antenna 04 did not miss any tags thus 100% (0 missis our of 100 tags) reading efficiency. The tag missed was known to be in poor orientation while it passed over the antenna. The next test again examined antennas 01 and 03. As in the previous tests, the test tag was passed over the antennas 10 times per replicate. A total of 11 replicates were conducted. During the test no tags were missed on antenna 01 but during the sixth replicate one tag was missed on antenna 03. Tag reading efficiency was thus 100% for antenna 01 and 99.09% (1 miss out of 110 tags) for antenna 03. No explanation for the tag miss on antenna 03 can be offered.. Finally, we repeated the same test on antennas 02 and 04. A total of 11 replicates were conducted with 10 tags per replicate (110 total tags pass ever each antenna). No tags were missed thus 100% tag reading efficiency was achieved on both antennas. The combined test results after the 02 antenna read problem was corrected, showed the following tag reading efficiencies. Antennas 01 and 04 both provided 100% ( no misses out of 210 tags) tag reading efficacies, while antennas 02 and 03 both showed 99.52% tag reading efficiencies (1 miss out of 210 tags per antenna). All but one tag miss can be explained by bad tag orientation. The vertical tag read distance above the antenna housing was also measured for each of the four antennas. Results showed the vertical read distance above the antennas to be as follows: antenna 01 read 12.1 cm, antenna 02 read 11.4 cm, 03 read 8.9 cm, and antenna 04 read 12.7 cm. Antenna 03 showed the shortest read distance. The transceiver controlling antenna 03 may be replaced in the near future if further adjustments do not improve the vertical read distance to that of the other antennas. However, even with its slightly reduced vertical read distance, a near 100% tag read efficiency was achieved on antenna 03. The read distance achieved with antenna 03 is also adequate for water conditions normally encountered at the site. Results of the above tests suggest that the pass-by PIT-tag interrogation system should adequately detect fish passing over its antennas. Results with fish will vary from that obtained during the this series of tests to some degree because of fish behavior. Fish while passing pass over the antenna system will display a variety of behavioral actions and thus will be missed as are tagged sticks when they are out of alignment with the electromagnetic field produced by the antenna system. However, based upon past test results this is a minor problem in part due to the four antennas making up the Bonneville Dam pass-by PIT-tag interrogation system. We suggest that to be on the conservative side that investigators use a 95% reading efficiency for the system when making any calculations. 03/18/2002 13:19 Carter_S 3D9.1BF0E0DFF9 3D9.1BF0E1343B Have been registered as test tags after being detected at DSM1 flat plate, BVX prior to today. 03/18/2002 08:12 Carter_S These tags showed up as fish in the bvx files but I don't think they are. Are these timer tags? Obs Site Obs Date Tag ID Ctrl N-READ Coil1 BVX 13-mar-2002 09:14:03 3D9.1BF0E1343B 05 1 03 BVX 13-mar-2002 09:14:04 3D9.1BF0E0DFF9 03 1 01 BVX 13-mar-2002 09:14:07 3D9.1BF0E1343B 05 1 03 BVX 13-mar-2002 09:14:08 3D9.1BF0E0DFF9 03 1 01 BVX 13-mar-2002 09:17:25 3D9.1BF0E1343B 05 1 03 BVX 13-mar-2002 09:17:26 3D9.1BF0E0DFF9 03 1 01 03/14/2002 09:46 Carter_S From: Earl Prentice To: Carter Stein CC: Gary Fredricks , Doug Dey , Sandy Downing , Fodrea Kimberly - KEWR-4 , Ebberts Blaine Subject: Bonn. Flat-plate Bonn. flat plate status Carter, as of ~1000 March 13 the Bonn. flat-plate system became operational. The transceivers were left in an ON condition, all that needs to be done is to activate the system is to turn the antennas ON at the downwell location. I worked with Scott to correct a small comm problem (baud rate) so he knows that the system is ready for operations. In my opinion the new antenna lift system operates very well. A chain drive was installed to synch both sides of the antenna housing during its operation. The change eliminates binding that occurred in the past during the lifting and lowering of the antenna housings because of differential component ware and piston air pressure. In addition, the lift arms were increased in size to reduce housing side movement, new pistons and bearings installed in addition to new rails and slash rubber. All this work was performed by our Pasco shop. During the period of 12-13 March we tuned the antennas and installed new cables, connectors, and a antenna cover. I also ran some preliminary tests to see if the system was operating properly. During the testing the water level in the DSM channel was very high but I was able to run some "stick tests" just to see if the system would operate under very very adverse conditions. The results suggest that under normal operating conditions we should get near 100% detection with ideal tag orientation. Once the system goes into operation and the water levels are adjusted I will conduct a battery of "stick tests" to determine tag reading efficiency.. Please inform me as to when you plan to start operations at the facility so I can plan my schedule accordingly. Thanks 03/13/2002 10:34 Scott_Li The site interrogation computers were upgraded to Minimon ver. 1.0.81. Communications witht he PE transceivers was verified this morning with Earl Prentice. Site is on line but Antennas will not be activated until sampling begins. 03/12/2002 08:11 Scott_Li Site interrogation computers was upgraded to the Minimon ver. 1.0.81 ####End of Event Log for BVX###