Station and Network Status
Rachel
August 11, 2008
The Rachel station is currently having communications problems that cannot be repaired remotely. A field tech will troubleshoot the problem on the next regularly scheduled maintenance visit.
St. George Station
July 28, 2008
We are troubleshooting a communications problem at the St. George station. Data is being collected and will be uploaded to the web as soon as the issue is corrected.
New PIC at Delta
July 22, 2008
The pressurized ion chamber (PIC) at Delta was changed out for regular maintenance. The approximately 1 micro-R/hr increase in background gamma measurements is a result of the calibration sensitivity of the new instrument, and does not indicate an actual increase in background radiation.
Stations back online
July 1, 2008
Both the Amargosa and St. George stations are back online. Missing data will be back filled as soon as possible.
St. George
June 30, 2008
Communications at the St. George station are currently down. We will have the problem corrected as soon as possible.
Amargosa
June 23, 2008
We are currently troubleshooting communication issues with the Amargosa station.
Caliente outage
June 19, 2008
The station at Caliente will be offline for the next two days as it receives a communications upgrade from the local phone company.
Milford outage
May 14, 2008
The Milford station is currently experiencing a communications outage. We are investigating the issue and hope to bring the station back online by the end of this week.
Delta Communications Down
May 5, 2008
We are currently troubleshooting a communications issue with the Delta, Utah station. The station is continuing to collect data normally, and values will be updated on the web site as soon as communications are reestablished.
UPDATE: We are reconfiguring the station's communications mechanisms and hope to have the station back online by the week ending 5/16/2008.
Tonopah Stn Maintenance
April 18, 2008
On 4/15/08 Tonopah reported some erroneous values while it was being worked on. Some affected values were edited and tagged as estimates. Others were removed from the online database.
St. George
January 22, 2008
We are currently troubleshooting communications for the St. George CEMP station. The station is continuing to operate normally, and data will be updated as soon as communications are reestablished.
Caliente Battery Low
January 7, 2008
The
Caliente station has a battery that needs replaced. The battery powers the station when solar power cannot. The battery should be replaced early this week.
St. George Outage
January 3, 2008
The
St. George station is currently experiencing a communications outage but should be back online within the next few days. Data is being collected onsite and should be filled in once the problem is resolved.
Duckwater Update
October 5, 2007
The
Duckwater station has been updated. An erroneous gamma radiation sensor multiplier was updated and data for the past two weeks will be corrected to reflect the proper multiplier. Several erroneous values due to instrument resets on Sept. 19 were also corrected. The resets occurred while a new display panel was being installed.
Duckwater Upgrade
September 18, 2007
The
Duckwater station is currently being upgraded and should be back online in a few days.
Rachel Communications
August 30, 2007
The
Rachel station is currently using backup communications to transmit data. The station is collecting data normally and data will be updated on the web on an irregular time schedule until the middle of next week, which is when we hope to restore regular communications.
Satellite Communications Restored
August 9, 2007
Satellite communications have been restored and data for stations that they serve is now reporting normally. Missing data for these stations for the period August 1-8 has been manually downloaded and will be loaded into the web site soon.
A faulty pressurized ion chamber was replaced at the
Nyala site on the morning of August 9th 2007.
Satellite Communications Outage
August 7, 2007
All satellite communications are currently unavailable. This affects communications with stations at Garden Valley, Medlin's Ranch, Nyala, Stone Cabin, Tecopa/Shoshone, and Twin Springs. Our access to the ground-based facility that collects the data from the satellite is currently experiencing outages. This does not affect the actual CEMP stations: they are still collecting data that will be posted here online when the communications facility has restored access.
UPDATE: Satellite communications have been restored as of August 9, 2007.
Milford Gross Alpha and Beta Results
August 7, 2007
Analyses of gross alpha and beta activity on filter samples obtained from the CEMP station in Milford, Utah for the period July 2-9 show alpha and beta radioactivity that is consistent with normal background levels. Download
Test America's analytical report. Download a
summary of the results, which have been converted to pico-curies per cubic meter for comparison to analytical results from filter analyses for Milford filters from calendar year 2006 and the first quarter of 2007.
Station Data Down
August 3, 2007
The morning of August 3, 2007 all CEMP stations were not updating on the website. The problem has been resolved and all stations are operating again. However, satellite communications are still unavailable.
Milford calibration
July 18, 2007
A calibration check was performed at the
Milford station around 11 A.M. which caused a 'spike' in the gamma radiation readings. This 'spike' will be removed by our QA process within the next few days.
Milford gamma readings
July 16, 2007
Recent gamma readings at the
Milford station are believed to have been caused by naturally-occurring radionuclides released as a result of wildfires burning in the Milford area during the past week and a half. Analysis of the gamma spectra of particulates on the air filter samples collected from the station for the periods July 2-9 and July 9-13 is currently being undertaken by the University of Nevada, Las Vegas.
Report of Analysis: Milford and Delta, UT Air Filter Samples.DRI is also checking other possible explanations for the higher PIC readings, including whether the PIC was operating properly.The pressurized ion chamber (PIC) at the Milford station was replaced on the afternoon of Saturday, July 14 so that diagnostic tests could be run to ensure that the PIC installed during the fires was operating normally. The new PIC is currently reading approximately 3 micro-R/hr lower than the original PIC. This is within the normal range of variation between these instruments, and does not indicate an actual change in background gamma radiation at the site. A re-calibration of the way in which the station datalogger sees the voltage output from the PIC will occur shortly so that readings are comparable to historical data.
Amargosa Valley outage
April 16, 2007
The
Amargosa Valley station is currently experiencing a communications outage. The local ISP is working on resolving the problem and expects to have it fixed in 24-48 hours.
UPDATE: The problem has been fixed as of April 17, 2007.
Duckwater, Mesquite, Overton outage
April 11, 2007
The
Duckwater,
Mesquite, and
Overton stations are currently experiencing outages. We hope to have these stations back online within a week.
UPDATE: All stations are back online as of April 12, 2007.
Pioche Communications outage
April 6, 2007
The
Pioche station is currently experiencing a communications outage. We hope to have the station back online early next week.
UPDATE: Pioche is back online as of April 9, 2007.
Communications outage
February 6, 2007
Several stations that have satellite communications will be unavailable due to an update currently taking place at the processing facility. We expect these stations to be back online later this week. Affected stations are: Garden Valley, Medlin's Ranch, Nyala, Stone Cabin, Tecopa/Shoshone, and Twin Springs.
Tonopah Upgrade
November 28, 2006
The
Tonopah station is currently being upgraded and should be back online by Nov 29, 2006.
Satellite Communications
November 20, 2006
We are currently experiencing problems with satellite communications, affecting stations at Garden Valley, Medlin's Ranch, Nyala, Stone Cabin, Tecopa/Shoshone, and Twin Springs. We expect these issues to be resolved by Monday, Nov. 27, 2006.
Lincoln County Station problems
August 24, 2006
The CEMP stations in Lincoln County (Alamo, Caliente, Pioche, and Rachel) are having communications problems. We are working with local personnel to correct the problem. All stations continue to collect and store data which will be retrieved and posted when the communications are restored.
Mesquite wind sensor
May 30, 2006
The
Mesquite station is currently experiencing problems with the wind sensor. UPDATE: The wind sensor has been repaired 05/31/2006.
Communication Problems
May 9, 2006
The
Warm Springs and
Tonopah stations are currently experiencing communications issues. Data at both sites is still being collected, but will not be available here until the issues are resolved.
Nyala
April 19, 2006
The
Nyala station is currently experiencing a datalogger failure. We expect this to be resolved early next week.
Nyala Upgrades
March 22, 2006
The
Nyala station is currently being upgraded.
Mesquite offline
March 14, 2006
The
Mesquite station is currently offline as it is having communications problems. The problems should be resolved later this week.
Tecopa/Shoshone online
February 23, 2006
The
Tecopa/Shoshone station is now online. Please note: As the Tecopa site is being prepared, the station is actually located in Shoshone and currently named to reflect that.
Tecopa almost ready
February 16, 2006
The Tecopa station is almost ready. It is experiencing some communications problems and should be online shortly after they are resolved.
Garden Valley upgrade
February 2, 2006
The
Garden Valley station is currently off-line, but still collecting data. The station will be back online after a communications upgrade.
Pahrump online
December 23, 2005
The
Pahrump station is back online.
Communication issues
December 15, 2005
The Rachel and Pahrump stations are experiencing intermittent communication issues, which are currently being investigated.
Rachel online
December 1, 2005
The Rachel station is back online.
Communication issues at Pahrump and Rachel
November 18, 2005
The Pahrump and Rachel stations are currently experiencing communications issues. Both stations are still collecting data on-site, but the data will not be online until the communications issues are resolved. We are working on them and expect Rachel to be back online in the next few days, but Pahrump may take a few weeks.
Nyala site date correction
August 3, 2005
The Nyala station was inadvertently programmed with the incorrect date and current realtime data is shifted by 1 day. The date will be corrected on the next visit (~Aug. 10) and the data will be correctly logged in the database at that time.
Garden Valley site outage
August 2, 2005
The Garden Valley site is being moved to a location with better exposure due to a construction project. The new location is near the old site and will provide better exposure. The station should be back online around August 10, 2005.
Communications outage at Boulder City and Henderson
July 1, 2005
The communications carrier used at the Boulder City and Henderson stations discontinued their service to transition to a new protocol. The stations continue to collect data and will be retrieved manually. Communications are expected to be restored around July 18th when replacement communication hardware arrives.
More near realtime updates
December 11, 2004
Amargosa Valley outage while being upgraded (12/8 to 12/11). Back on-line 12/11/2004. The following link will provide daily graphs updated each ten minutes.
Amargosa Valley
Milford communications outage
September 15, 2004
Repairs expected on 9/15/2004.
More near realtime updates
August 31, 2004
One more station was upgraded to 10 minute update intervals. The following link will provide daily graphs updated each ten minutes.
Indian Springs
More near realtime updates
August 25, 2004
Two more stations were upgraded to 10 minute update intervals. The following link will provide daily graphs updated each ten minutes.
Delta Milford
More near realtime updates
July 12, 2004
One more station was upgraded to 10 minute update intervals. The following link will provide daily graphs updated each ten minutes.
Overton
More near realtime updates
June 20, 2004
Two more stations were upgraded to 10 minute update intervals. The following link will provide daily graphs updated each ten minutes.
Cedar City St. George
Delta communications outage
January 27, 2004
The Delta CEMP station communications line was disconnected due to nearby construction work. The station will continue to collect data and be recovered once the communications come back on-line. Expected outage until mid-February.More near-realtime updates 1/14/2004.Four more stations were upgraded to 10 minute update intervals. The following links will provide daily graphs updated each ten minutes.
Alamo Caliente Pioche Rachel
Station at Warm Springs Summit added
September 26, 2003
This site will serve as a communication bridge to Twin Springs and Stone Cabin to allow 2-way communications where previously only one-way satellite communications has been possible and affordable. The site also serves as a high altitude data collection site (7570 ft ab MSL) and will allow future studies with the existing valley sites.
Station in Ely added
July 2, 2003
Several stations are now being updated every 10 minutes. The following stations are collected and updated every 10 minutes. The associated link will take you to a 24 hour plot of the station's more recent data that will automatically update every 10 minutes.
Boulder City Ely Henderson Las Vegas Several more stations will be updated more frequently once the necessary communications are upgraded.
