Station and Network Status
Caliente station outage
March 7, 2023
The Caliente station is being relocated and will be unavailable. It will resume operation as soon as possible.
Pioche communications outage
January 4, 2023
The Pioche station is currently experiencing a communications outage. A technician has been dispatched to diagnose the problem. Data continues to be collected and will be updated as soon as possible.
Goldfield communications outage
January 4, 2023
The Goldfield station is currently unavailable. A technician has been dispatched to repair the problem. The station is operating and collecting data, but current conditions are causing problems with the communications system. Expected repair is before the end of the week.
Pahrump data logger failure
September 22, 2022
The data logger has experienced an internal failure. A technician is being to dispatched to replace the datalogger.
August 25, 2022
The Duckwater station will be offline beginning sometime in the AM on August 25, 2022. The station is being upgraded with new communications equipment and should be back online by the evening of August 26, 2022. The actual downtime will be very brief (<30 minutes) and most of the data will be recovered once the processing for the new equipment is completed.
Delta Precipitation correction
July 12, 2022
While performing maintenance on the Delta station rain gage, the technician caused the gage to record several tips between 1 and 3 pm local time. This data has been corrected.
Cedar City Outage
May 16, 2022
The communications provider for the Cedar City station has notified us that they have a tower down. It is currently unknown when the station will be back online. Data is being stored onsite and will be transmitted and posted when communications are restored.
Amargosa Valley Outage
May 16, 2022
Communications are currently down with the Amargosa Valley station. Technicians have been dispatched to address the problem.
Tecopa PIC disabled
November 15, 2021
Recent readings from the pressurized ion chamber have been showing signs of an internal battery/power issue. A new sensor unit is being prepared and will be deployed as soon as possible. Until then, due to the very unreliable readings, the operating unit has been shut down.
Tecopa PIC malfunctions
November 6, 2021
Data from the pressurized ion chamber at Tecopa is showing signs of an internal battery failure. A technician is being dispatched to diagnose and repair the sensor this coming week. Once the problem is identified and repaired any erroneous data will then be addressed.
Cedar City Outage
July 27, 2021
The recent severe weather knocked out communications with the Cedar City station last night. The station has been checked and is collecting data. As soon as communications are restored, past data will be posted and posting will resume.
GOES 17 satellite outage
July 23, 2021
GOES 17 DCP communications outage caused loss of data transmission at Tecopa, Stone Cabin, Twin Springs, Medlin's Ranch, and Nyala stations. Data will be recovered during the next field visit. Outage ran from late 7/21 to early 7/23.
Ely station outage
December 21, 2020
Communications for the Ely station are currently down. Communication equipment upgrades are in progress. The station continues to collect data and it will be posted once back online. Expected down time should be less than a couple days.
Tonopah PIC failure
May 22, 2020
The Tonopah pressurized ion chamber (PIC) has experienced a power problem and has been turned off until a technician can replace the problem unit. The problem began on May 19. Erroneous data for several sensors will be removed during quality control.
Repair of Ely Gamma Radiation Detector
May 12, 2020
On April 29th, the Ely gamma radiation detector, began behaving very erratically and affecting some of the other sensors. Local personnel tried resetting the sensor, but eventually it was determined that it was best to turn off the sensor while a technician was deployed. Repairs were completed on May 12, 2020. The sensor passed all diagnostic checks. Bad data and sensor check data will be removed before the end of the month.
Tonopah Communications failure
March 8, 2020
The Tonopah station has experienced a communications failure. Remote resets of the system have been unsuccessful in getting the system back online. On site status indicates that the station continues to collect and store information, which will be uploaded as soon as possible. (3/16/20) A technician has been dispatched to address the on site problem.
Ely station outage
February 19, 2020
Ely communications have experienced a failure. An issue was initially identified by the communications provider. At this time (3/14/20), this seems to be resolved, but communications continue to fail at the station. A technician has been dispatched to address the issue. At this time, it appears that the station continues to collect and store sensor data, which will be retrieved and processed as soon as possible.
November 13, 2019
Power problems have developed at Pioche that are affecting communications and some operations. Most data is continuing to be collected and will be updated when the system is back online.
August 30, 2019
The communications connection for the Rachel station is down while some upgrades are being installed. Currently, the station is expected to be back online late afternoon on Sept. 4, 2019. Data collection and routine operations will continue normally and online data will be updated as soon after as possible.
June 13, 2019
The Goldfield station is currently unavailable due to communications upgrades that are taking place. The station is collecting data and will be filled in once the new communications are in place.
Goldfield station outage
February 8, 2019
The Goldfield station is currently down and has experienced a major power source problem. The site instrumentation and equipment is undergoing evaluation and plans are being made for repairs. Additional information will be posted when available.
Indian Springs Station communication outage
December 27, 2018
The Indian Springs station has stopped reporting. Current indications are a problem with the communications and not the data collection or station equipment. A technician is trouble shooting the problem and the station will be back online as soon as possible. At that time all data should be able to be recovered.
Overton station offline
November 28, 2018
Construction work at the Overton site currently has the station communications offline.
Nyala Communications Outage
October 31, 2018
Station currently experiencing communication issue - it is being investigated and will be back up as soon as possible.
Ely And Cedar City communications
June 25, 2018
Ely and Cedar City continue to have communications problems. Solutions are being worked worked out with the provider. Data continues to be collected and will be posted as it becomes available.
Milford Communications Outage
May 25, 2018
Milford station has been out of communications since the 17th - problem has been identified as a disruption with the service provider, technicians are troubleshooting the problem and will have it back online as soon as possible. At that time, all past missing data should be recoverable.
Ely communications outage
May 9, 2018
Communications to the Ely station are experiencing a problem and technicians are working with the local service provider to resolve the problem. The station continues to collect data and will be filled in once the station is back online.
Cedar City station online
February 9, 2018
Communications with the Cedar City station have been restored and missing data since Jan. 23 have been recovered and processed.
Cedar City Communications
February 1, 2018
Communications for the Cedar City station are currently down. We're changing to a new service provider and working out details. The station has been checked by a technician and is actively collecting data, which will be posted as soon as it can be transferred. Due to a needed replacement part that is on order the station may be down for the next couple weeks.
St. George Station relocation update
September 26, 2017
The St. George station has been relocated to the Bloomington Hills area and is collecting data. System communications and data processing are being completed. The site is expected to be back online within the next week.
St. George Station relocation
August 25, 2017
The St. George station is in the process of being relocated due to pending construction activity at the current site. The new site will be at a location that will not retain historical measurement compatibility. Once the new site is in place and functioning with communications, it will be available again.
Overton Ion Chamber Malfunction
June 12, 2017
The Overton Pressurized Ion Chamber began reporting vastly fluctuating values yesterday afternoon. A technician has been dispatched to investigate.
Cedar City readings
May 30, 2017
The Cedar City station recorded a very high reading today and it has been confirmed that the exposure was due to a passerby that had recently undergone medical treatment.
Milford station outage
April 11, 2017
The Milford station quit reporting on April 1st. Remote troubleshooting with local personnel determined that a technician would need to be dispatched as the station was not showing output on the local display either. The technician arrived today and found several problems of non-functioning equipment. The exact problem was not determined, but the station was put back into operation after the data logger and communications devices were reset. Initial troubleshooting indicated a failure of the data logger, but subsequent diagnostics determined no problems with the data logger.
Henderson station Vandalized
February 17, 2017
The Henderson station was vandalized yesterday and will be down until repairs can be completed.
Goldfield station unavailable
February 3, 2017
Communications with the station at Goldfield are offline. Local personnel have verified that the station is operating and collecting data, but the communications interface is not responding. A technician has been dispatched and will be troubleshooting the problem.
Cedar City station relocated
January 19, 2017
Due to a planned construction project on the site of the weather station at SUU, the equipment has been moved to a new location on campus. The previous outage of station data was due to primary communications power being removed unexpectedly ahead of schedule. The station is operating again and communications are being completed.
CEMP station processing
December 30, 2016
Station processing is not currently working; solution pending
Cedar City Communications Outage
December 23, 2016
Data from the Cedar City station is not reaching the web site. We have contacted the communications provider and plan to have the issue resolved as soon as possible after the holiday. Readings are being collected at the station and will be uploaded to the site before the monthly summary is calculated. -CC
Overton communications outage
November 1, 2016
The Overton station is currently experiencing a communications outage. Data is still being collected, and will be restored to the CEMP web site once communications has been reestablished.
Henderson Station Experiences Technical Problems
October 26, 2016
The CEMP station in Henderson is having technical issues that are causing measurement readouts to be very erratic. A technician is working on the problem, and we will have it corrected as soon as possible. - CC
Boulder City Ion Chamber
September 17, 2016
The Boulder City pressurized ion chamber is exhibiting signs of a failing sensor. Current readings indicate a faulty power source, which causes instantaneous readings to be both too high and too low. A technician will be dispatched on Sept. 19th.
Data retrieval issues at satellite stations
August 17, 2016
A communications problem is preventing real time data retrieval and the transfer of data to the web site. Stations currently being affected are Tecopa, Medlin's Ranch, Nyala, Stone Cabin, and Twin Springs. Data is being collected at the stations and will be uploaded as soon as possible. -CC
Data not reaching web site
July 22, 2016
Data from several stations is not reaching the CEMP web site due to a computer problem. Our computer specialist has been in the field and will return to work on the issue as soon as possible. The data is being collected at the stations and will be uploaded to our system prior to calculating the monthly averages for July. We apologize for the inconvenience. -CC
Milford PIC damaged
July 13, 2016
The Pressured Ion Chamber (PIC) was replaced today after a determination that the unit was not responding correctly. Additional troubleshooting determined that the unit was likely damaged by lightning or some other electrical surge on June 28th. Additional testing of cabling and power supplies found no additional damage. Affected data will be removed from online display.
Amargosa communications restored / bad data removed.
July 10, 2016
The Amargosa station is again reporting. The June 30th storm damaged the PIC power supply. Bad data from June 30th to July 6th have been removed
Amargosa communications outage
July 1, 2016
The Amargosa Valley station is currently not reporting. Strong storms and lightning were reported in the area late on June 30th that disabled several local communications systems. The local ISP is working on the problem and will repair it as soon as possible. The station should be continuing to collect data.
Update 7/5/2016: Station communications continue to be down, but a regular check of the equipment indicates a possible failure with the pressurized ion chamber. A tech will be returning to the site as soon as possible to diagnose and repair. The data will be evaluated once the system is back online.
Overton Communications Outage
May 27, 2016
The data from the Overton station is not reaching the web site due to a communications problem, and we are working with the local phone company to fix the issue. The data logger is collecting information normally, which will be uploaded to the system at a later date. -CC
Pahrump and Cedar City
May 3, 2016
Pahrump and Cedar City are currently experiencing communications problems. All indications are the that stations continue to operate and collect data. Technicians are working to find and correct the problems.
Beatty PIC Failure
February 5, 2016
**UPDATE** As of 2/10/16, the PIC has been repaired, but the communications system went down on the 7th. We are working with the provider to get the problem resolved. Data is being collected at the station and will be uploaded before the monthly summaries are calculated. - - - - -
Original Note: The pressurized ion chamber at the Beatty station has been reporting "0" gamma radiation since approximately 10:00 AM this morning. The most likely cause is that the PIC has suffered an internal battery failure. A technician will be available to replace the PIC early next week. - CC
Milford PIC replacement
January 27, 2016
The Milford PIC was replaced on Jan 26th. New sensor background levels were found to be slightly elevated above the removed sensor. Output has been checked against factory calibrations and differences are within expected tolerances.
Milford PIC malfunctions
January 25, 2016
The Milford PIC is exhibiting behavior of a power supply resetting. Recent cold temperatures may have stressed the internal maintenance battery. A technician will be dispatched as soon as possible.
January 21, 2016
We are currently experiencing a disruption of most of our CEMP communications network. We are working to restore communications, and data will be backfilled as soon as that occurs. Thank you for your patience.
Beatty Data error
January 15, 2016
A recent communications problem with the Beatty station caused an incorrect connection to be established. This unintentionally caused the Beatty station to be loaded with data from the Amargosa Valley station. The incorrect data has been removed. Once the correct data has been retrieved from the field, it will be posted. Communications with the Beatty station are being worked on.
Intermittent Data Transfer Outages
October 16, 2015
We are in the process of setting up a new computer system to collect data from the stations due to the frequent outages we have been experiencing from the current system. As always, the data from each station is being collected by a data logger and will be uploaded prior to calculating our monthly summaries. We are hoping to have the new system fully operational by mid-November. We apologize for the inconvenience this is causing everyone. -CC
Beatty Station Data
October 6, 2015
Lightning strikes in Beatty during the recent storms damaged some local equipment that is involved in the relay of data to our web site. We understand that repairs are underway and are expected to be completed by the end of the day on Wednesday. Data is being collected normally by the data logger at the station and will be backfilled before our monthly summary for October is calculated.
September 4, 2015
We are experiencing another issue with the transfer of data from the stations to the web site. Our computer technicians are working on the problem and hope to have it resolved as soon as possible. Data is being collected normally at each station and will be uploaded once the system is repaired. -CC
August 18, 2015
We experienced a major software crash on one of our servers on Saturday morning at about 6 AM. No data has been lost, but the crash wiped out all active communication configurations for our weather stations. The configuration is being rebuilt, and we expect all reporting to be back to normal before the end of the week. -CC
Technical problem with data not reaching web
July 7, 2015
All stations are collecting data normally; however, a computer problem is preventing the transfer of data to some of the station web pages. We are troubleshooting the problem and expect to have it resolved in the next day or two. -CC
Technical Issues with Data Retrieval
May 14, 2015
Due to a problem with the computer that retrieves data from the stations, readings from numerous stations were not reaching the web site for an extended period of time. The problem has been corrected, and the missing data will be uploaded as soon as it is retrievable. Indian Springs is having a data logger issue that we are currently addressing separately.
December 30, 2014
The Milford CEMP station has experienced a battery failure, resulting in loss of some data collection and transmission capabilities. A technician is visiting the station today, and the issue should be resolved later this afternoon.
Las Vegas PIC exposure
December 18, 2014
Abnormal readings from Las Vegas Pressurized Ion Chamber (PIC) today were caused by exposure to a localized medical radiation source. Each event confirmed by technicians. Readings associated with these events will be removed from the record as they are not representative of the larger environmental exposure.
November 24, 2014
The pressurized ion chamber at the Henderson station is showing signs of imminent equipment failure. As soon as a technician is available we will have the faulty PIC replaced, most likely in the next 48 hours.
St. George power outage
September 8, 2014
There is a power outage at the St. George station due to construction activity near the site. Power is expected to be restored within the next couple days, at which time data collected will be transmitted to the web page.
Milford Communications down
September 8, 2014
The Milford station is experiencing communications problems related to the local internet provider. Data are still being collected normally, and the web site will backfill these data as soon as communications is re-established.
Sarcobatus station relocation
May 8, 2014
The Sarcobatus CEMP station is in the process of being moved approximately one mile from its current location. During this process data sensors will be reporting irregularly. The move should be completed within the next few days.
January 23, 2014
The 300-volt battery for the pressurized ion chamber (PIC) at Rachel has been replaced, eliminating the erratic maximum and minimum reading noise. As a reminder, the maximum and minimum gamma reading graphs are primarily for use as a diagnostic tool. Please select "average" readings when querying the database for gamma radiation readings.
November 25, 2013
We are currently troubleshooting two unrelated communications outages that are affecting our ability to update information on the web site for stations at Amargosa, Las Vegas, Rachel, Tonopah, and Warm Springs Summit. We hope to have the problem resolved soon. In them meantime, the stations are continuing to operate and collect data normally, and we will update the data on the web site as soon as communications are reestablished.
August 15, 2013
Communications outages at Milford and Overton are the result of issues with the local service providers in both locations. Stations are continuing to collect data normally, and web site data will be backfilled as soon as communications are reestablished.
Update on Goldfield station
July 1, 2013
The installation of a new modem at the station did not resolve the communications problem. A communications specialist will be available to visit the station after July 11th. We hope to have the issue resolved soon thereafter.
Goldfield station communications outage
May 29, 2013
The Goldfield station has experienced a station communications outage. The latest troubleshooting indicates the failure of a communications hardware component. A technician is working on the problem. Available information indicates that the station is continuing to collect data.
Duckwater comms being updated.
May 28, 2013
Duckwater is currently offline (communications only) while a communications hardware upgrade is being installed.
Las Vegas station displaying incorrect data
May 16, 2013
Due to an equipment malfunction, the readings from the Las Vegas station are displaying incorrectly on the web site and on the station sign. We are troubleshooting the problem and will have it repaired as soon as possible.
Electrical issue at Boulder City station
April 15, 2013
The pressurized ion chamber at the Boulder City station, which measures gamma radiation, is showing a slight change in its reporting pattern that is indicative of an equipment problem. The corresponding spike and drop is usually related to battery or other electrical issues. This pattern is recognized as an equipment problem due to the erratic nature of the pattern and to the drops in the minimum gamma radiation that reach levels well below normal for the area, which is not possible in our environment. We will be monitoring the pattern, and if it becomes worse a technician will revisit the station to correct the problem.
Pioche Communications Outage
March 6, 2013
Due to a recent configuration change associated with the Internet Service Provider at Pioche, a manual update of the communications software is required to re-establish communications. Expectations are that communications will be functional within the next few days. In the meantime, data is being collected normally and will populate to the web site as soon as communications are restored.
Work on electrical system causes fluctuations at Sarcobatus
March 5, 2013
Electrical rewiring activities at the Sarcobatus Flats station have caused some equipment to produce anomalous readings. Per CEMP policy, erratic readings that are caused by a known equipment-related issue will be edited out to avoid skewing station averages. -cmc
Pahrump & Indian Springs stations
February 22, 2013
The pressurized ion chambers at the Pahrump and Indian Springs stations, which measure gamma radiation, are showing a pattern that is indicative of an equipment problem. The corresponding spike and drop is usually related to battery or other electrical issues. This pattern is recognized as an equipment problem due to the erratic nature of the pattern and to the drops in the minimum gamma radiation that reach levels near or below 0, which is not possible in our environment. Plans are underway to better ground the electrical systems at Pahrump, Indian Springs, and other stations that periodically have this problem. -cmc
January 15, 2013
We are currently troubleshooting communications issues at the Amargosa and Mesquite Stations. We hope to have the issues resolved soon. In the meantime, all data are downloading normally to teh stations, and information will be backfilled to the web site as soon as communications is reestablished.
January 4, 2013
The pressurized ion chamber readings for Ely are exhibiting a pattern that is usually related to a battery problem. A field technician is scheduled to visit the station on January 15th and will troubleshoot the issue at that time.
Delta Ion Chamber fluctuations
November 27, 2012
The pressurized ion chamber at Delta has been experiencing recent regular fluctuations in data output for its minimum and maximum measurements. This anomaly has not affected the average readings for the site and is not indicative of an actual change in background radiation. We are troubleshooting the issue to identify the cause.
Garden Valley station decommissioned
November 27, 2012
The Garden Valley CEMP station site has been decommissioned, and only data collected through a portion of October 17, 2012 (the time of its disconnection from the network) will be available from this point forward on the web site.
Public Notice of Rad Removal from Ranch Sites
September 25, 2012
Information on the removal of radiological monitoring equipment from CEMP ranch sites
The US Department of Energy (DOE) is proposing a gradual transition of the CEMP toward a vision of increased public outreach in participating communities. In order to accomplish this transition under the current challenging economic environment, DOE is discontinuing radiological air monitoring at the stations not located in communities effective September 25-26, 2012. This includes removal of the air samplers, pressurized ion chambers, and thermoluminescent dosimeters from the ranch stations at Stone Cabin, Twin Springs, Nyala, Garden Valley, and Medlin's Ranch. The several reasons for this decision are discussed below.
Firstly, two decades of air monitoring since the cessation of nuclear testing in 1992 indicate that widespread radiological monitoring of the airborne environment is no longer necessary. This point was highlighted by the recent detection by the CEMP of minute quantities of radionuclides associated with the accident at the Fukushima Daiichi nuclear power plant in Japan. The fact that the CEMP was able to detect such minute quantities of radionuclides from a source several thousand miles away, but has not detected radionuclides of concern in the airborne environment off the NNSS since testing ended in 1992 is significant, and indicates that radionuclides are not being displaced into the airborne environment from the NNSS in amounts that represent a threat to public health.
Secondly, an ample number of monitoring stations will remain in the communities to continue to confirm that detectable quantities of airborne radionuclides associated with past atomic testing at the NNSS are insignificant or absent. While radiological monitoring at some community stations may be discontinued over the next five years as well, stations that are located in communities that are well-positioned relative to prevailing weather patterns in proximity to the NNSS, that have high visibility and traffic, and significant community participation will be retained. Additionally, the on-site monitoring program continues with results reported in the annual site environmental report.
Finally, the DOE believes that these changes reflect responsible government with a good stewardship of tax dollars. Radiological monitoring at the ranch stations represents a greater comparative cost to the program than do the community-based stations, and the dollars saved from discontinuing air monitoring at these locations will be used to ensure continued public outreach and educational opportunities in the participating communities. A desire for an emphasis on educational outreach was a priority identified by public participants at the 2011 CEMP summer workshop. Additionally, there is interest in reallocating some of these resources toward a greater potential involvement of the CEMP in future aspects of water monitoring in areas down-gradient from the NNSS, since detection of underground-test related radionuclides in the groundwater off the NNSS is currently of public concern.
The DOE understands that many CEMP users find the weather data provided by the monitoring stations particularly useful, and DOE will be retaining the meteorological monitoring at the ranch site. Retention of the meteorological equipment makes it possible for other monitoring equipment to be installed or re-installed should the future mission of the NNSS change and DOE determine that additional monitoring is warranted. DRI will continue to maintain the public web site at cemp.dri.edu, which will provide access to archived radiological data for all stations, as well as near real-time meteorological readings for those stations from which radiological monitoring is discontinued.
CEMP stations offline
September 16, 2012
We are currently troubleshooting communications issues at CEMP stations located at Sarcobatus Flat, Goldfield, and Tecopa. We hope to have the situation resolved within the next couple days. In the meantime the stations are collecting data normally and information will be automatically backfilled to the web site as soon as communications are re-established.
We are continuing to work to resolve IP address issues for the Duckwater station, and in the meantime will be conducting manual data downloads monthly until the issue is resolved.
Tonopah Station back online
August 3, 2012
The Tonopah station is now back online after the installation of a new modem. Data missing from the web site will be backfilled within the next couple days.
Delta PIC output update
July 31, 2012
Data logger PIC output sensitivity value changed to reflect installation of new PIC on 7/26/2012. PIC output data from 7-26 to 7-31, 2012 adjusted to account for change in sensitivity value. (Programmer not available at time of sensor replacement.)
PIC replaced at Delta
July 27, 2012
A new pressurized ion chamber (PIC) was installed on July 26 at the Delta, Utah CEMP station, after the previous PIC exhibited occasional erroneous negative readings over a several day period.
Equipment Issue at Delta Station
July 24, 2012
The readings from the PIC in Delta are exhibiting patterns associated with an equipment problem. We are currently troubleshooting the issue and will resolve it as soon as possible.
CEMP station communications down
July 11, 2012
We are currently troubleshooting a computer issue that has resulted in drop-out of communications with most of the CEMP stations. We anticipate that the issue will be resolved shortly, and data will be backfilled to the web site as soon as communications are reestablished.
Tonopah communications outage
July 10, 2012
Due to communications provider upgrades, the Tonopah station is currently collecting data, but not communicating with CEMP computers. Initial efforts identified some malfunctioning equipment. This equipment will be replaced as soon as available. Expected replacement by Aug 3.
Troubleshooting Cedar City Communications
July 8, 2012
We are currently experiencing communications issues with the Cedar City CEMP station. We hope to have the problem resolved soon. In the meantime, the station is collecting data normally, and the web site will be updated as soon as communications is reestablished.
June 8, 2012
We are currently troubleshooting a communications outage involving 17 of our stations. In the meantime, stations are collecting data normally, and information will be backfilled in the web site as soon as we resolve the issue.
Satellite Communications Down
March 22, 2012
CEMP data that are transmitted by GOES satellite are currently not updating on the CEMP web site due to a problem with the satellites believed to be due to recent increased solar flare activity. At present, it is expected that the affected stations will begin transmitting their data again by noon EST on March 23rd.
Garden Valley error
March 14, 2012
Following a field computer upgrade, the station output format loaded erroneous data into the gamma radiation fields. A technician is enroute to correct the problem. The field and format problems will be corrected by mid-day 3/14/2012.
Delta station - Update
March 7, 2012
The equipment problem causing the erratic readings had corrected itself as of February 25th, but the issue has returned. We suspect that a cable is loose or has bad wiring. A technician will be at the station next week and will troubleshoot the problem at that time.
March 5, 2012
Communications links to all CEMP stations have been restored and are functioning normally.
March 2, 2012
The CEMP network is experiencing some communication problems with multiple stations. The problems are being investigated and will be resolved as soon as possible. In the meantime, data is still being collected normally and will be uploaded to the Web pages as soon as the issues is resolved.
February 24, 2012
The communication problems appear to have been resolved for Amargosa Valley, Beatty, Boulder City, Mesquite and Pahrump stations. There are still problems with Alamo and Indian Springs. The Garden Valley, Medlin's Ranch, Nyala, Stone Cabin, Tecopa/Shoshone and Twin Springs are still experiencing technical issues. Hopefully the problems will be resolved soon and the data updated.
February 24, 2012
There are communication problems for the Amargosa Valley, Beatty, Boulder City, Mesquite and Pahrump stations. All data flow seems to have stopped on Feb 23rd at 5:00pm. The data is still being collected at the stations and will be posted to the Web pages as soon as the problems are resolved.
February 23, 2012
The Alamo station has been experiencing problems since Feb 21, 2012 at 10:10am and the Indian Spring station has been experiencing problems since Feb 22, 2012 at 10:00am. The problems are being investigated however the stations are still collecting data and the web pages will be updated as soon as possible.
Delta station experiencing equipment problem
February 21, 2012
The pressurized ion chamber at the Delta station began exhibiting irregular behavior the evening of the 17th. The problem has been diagnosed as an equipment issue due to the erratic nature of the readings and the fact that the changes in the readings are negative rather than positive. A technician is not scheduled to visit the station until the week of March 12th. CEMP staff are currently assessing the need to visit the station sooner to repair the problem.
February 17, 2012
We are currently experiencing technical issues with the computer server that ingests the communications data for Garden Valley, Medlin's Ranch, Nyala, Stone Cabin, Tecopa/Shoshone, and Twin Springs. We hope to have this issue resolved shortly. In the meantime, station data are being collected normally and will be posted to the web site as soon as the issue is resolved.
February 3, 2012
The Beatty station has been upgraded and the data will be updated shortly
Network reporting normally
January 12, 2012
All CEMP stations are now reporting normally.
Network Communications Down
January 12, 2012
We are currently experiencing technical issues with the computer server that ingests the communications data for most of the stations in the CEMP network. We hope to have this issue resolved shortly. In the meantime, station data are being collected normally and will be posted to the web site as soon as the issue is resolved.
November 21, 2011
Construction activities at the Goldfield station were completed on November 18, and data have been transmitting normally since noon on that day.
Goldfield Station Under Construction
November 17, 2011
The CEMP station at Goldfield is currently under construction, which may affect communications and data readings. We'll post another message when the station is again operating normally.
September 19, 2011
We are troubleshooting a communications issue with the Rachel CEMP station. We hope to have the issue resolved shortly.
July 22, 2011
We are currently troubleshooting a communications issue at the Overton station. We hope to have the issue resolved soon. In the meantime, the station is continuing to collect data normally, and data will be backfilled on the website as soon as it becomes available.
Cedar City Communication
June 23, 2011
We are currently troubleshooting communications issues at the Cedar City station. We hope to have the problem resolved soon. In the meantime, data are being collected normally.
Communications problems at Rachel
April 29, 2011
The communications service provider at Rachel is experiencing some problems. The station continues to collect data and once the communications issue is resolved all the past data will be collected and processed.
April 7, 2011
We are currently troubleshooting our communications link with the Beatty station, and hope to have the issue resolved shortly.
Wind sensor failure at Warm Springs Summit
April 6, 2011
The wind sensor at Warm Springs Summit experienced a failure on April 2. the sensor will be replaced during routine maintenance scheduled for the week of April 12.
Pioche and Duckwater update
March 23, 2011
We are currently troubleshooting a communications issue with the Pioche station, and hope to have the problem resolved shortly.
At Duckwater, we are completing a planned communications upgrade and will have communication reestablished soon. In the meantime, the station is collecting data normally and these data will be posted to the site when the upgrade is complete.
Garden Valley communications
March 16, 2011
The Garden Valley station is experiencing a communications issue related to low battery voltage. Data is being collected normally, and normal communications should be restored in the next few days.
Rachel station relocation
March 15, 2011
Communications for the Rachel station will be interrupted while the station infrastructure is moved to a new location. We expect to resume normal communications in the next couple days.
Amargosa Valley Precipitation
December 23, 2010
Recent low precipitation measurements prompted a closer inspection of the precipitation measuring instrumentation. A thorough physical inspection found the main mechanism jammed with debris, probably from a storm in late fall. The precipitation record was reconstructed based upon the official Amargosa Valley NOAA observers record. Timing of the events was correlated with other event recording gauges in the region.
November 29, 2010
Erratic readings from the pressurized ion chamber at the Goldfield station indicate a potential impending failure of the chamber. A technician will be visiting the station on 11/30/2010 to troubleshoot the problem.
October 20, 2010
Communications are down and the communication carrier is working on the problem. The station is still collecting data. Once communications have been restored the data will be uploaded and will update the web site.
Duckwater Communications Outage
October 7, 2010
We are troubleshooting a continuing network communications problem with our Duckwater station. in the meantime, data are being collected normally, and all sensors are functioning normally. The web site will be updated as soon as data can be retrieved.
Amargosa Equipment changeout
September 1, 2010
The pressurized ion chamber (PIC) at Amargosa Valley was changed after it recently exhibited output that is characteristic of a sensor starting to have stability problems. This can be noted in the output traces from the 2 different sensors (before/after the change out). The slight shift in the average output is well within the specifications of the sensor output properties.
Cedar City Communications
July 6, 2010
We are troubleshooting a communications issue with the Cedar City station. We hope to have the issue resolved shortly.
Delta Communications Down
June 24, 2010
We are troubleshooting a communications problem at the Delta, Utah CEMP station. We hope to have the issue resolved soon.
April 26, 2010
Between 9 and 10AM on 4/26/10, the pressurized ion chamber at Duckwater began reporting anomalous (lower than average) readings. The sudden drop in readings and the fact that no other equipment appears to be affected suggest the issue is within the PIC itself or in the wiring between the PIC and the data logger. Technicians are currently troubleshooting the problem.
Overton Station Upgrade
April 13, 2010
The station at Overton is undergoing an infrastructure upgrade, and will be offline occasionally over the next two to three days.
March 22, 2010
The Las Vegas station experienced an eletronic malfunction over the weekend that created numerous bad readings on the PIC and several other sensors. The problem was traced to a faulty connection on the PIC. The connection was repaired and the PIC replaced to allow additional tests to be done on the PIC.
Nyala Station Repaired
March 17, 2010
The electronics problems at Nyala have been repaired, and accurate data are now being collected.
Electrical Issues at Nyala
March 8, 2010
This station is experiencing electrical problems affecting several instruments, which are giving us spurious reading. Our technicians are currently troubleshooting this problem and hope to have it resolved soon.
Boulder City upgrades
February 9, 2010
The Boulder City station is getting some structural upgrades and some of the sensors will be offline until Feb. 10, 2010.
February 8, 2010
Nyala is experiencing connection problems and a malfunction of the pressurized ion chamber following the recent storm. A technician will be visiting the station later this week to correct the problem.
July 27, 2009
The internal computer at WRCC that collects data from the satellite stations (Garden Valley, Medlin's Ranch, Nyala, Stone Cabin, Tecopa/Shoshone and Twin Springs)is having problems. The computer is being closely monitored. The stations are still retrieving data and the missing data will be posted as soon as possible.
Caliente Communications Outage
June 25, 2009
Caliente, NV has experienced a communications outage due to a complete power failure. A technician is working on the problem. The station is still collecting data and the data will be uploaded as soon as possible.
Warm Springs Communications Outage
May 14, 2009
Warm Springs has experienced a communications outage. A technician will be troubleshooting the problem and dispatched to the station as soon as possible.
Satellite Station Computer Failure
May 4, 2009
The internal computer at WRCC that collects data from the satellite stations has failed and is now in the process of being repaired. The affected stations are: Garden Valley, Medlin's Ranch, Nyala, Stone Cabin, Tecopa/Shoshone, and Twin Springs. Data is still being collected at the station and will be available on the web site within two weeks.
Tonopah communications outage
April 3, 2009
Tonopah is experiencing a communications outage. Currently there is no indication of a data collection failure. A trouble ticket has been issued and a technician is troubleshooting the problem.
St. George station remodel
February 24, 2009
The St. George station will be unavailable for a few days while the station site undergoes a rebuild to accommodate future construction near the station site.
Warm Springs Summit
January 15, 2009
Resetting the data logger did not solve the problem at the station. Techs are continuing to troubleshoot the issue.
December 29, 2008
We are currently troubleshooting the transmission problem at the Caliente station and will have it back online as soon as possible.
December 2, 2008
The Pahrump station is currently experiencing an outage. We are dispatching a technician to remedy the problem ASAP. As best we can currently tell, the station should be collecting data, which will be uploaded when it is back online.
November 18, 2008
Communication issues at Wallops Island - There might be periods of missing data due to the bad data we are receiving. We are working on the problem.
November 7, 2008
The communications system at the Duckwater station is in the process of being replaced. The station is still collecting data locally, and the past data will be uploaded to the website when communications are restored.
October 9, 2008
We are currently troubleshooting the communications problem at Amargosa Valley and will have it up and running again as soon as possible.
Tonopah back online
October 8, 2008
The station at Tonopah is now back online and the missing data has been back-filled. A new communications part at Warm Springs is on order and will replace the broken part as soon as possible.
Communications Outage at Tonopah, Duckwater and Warm Springs.
October 3, 2008
Due to upgrades done by the communications provider for these sites, communications are currently not available for these locations. Data continues to be collected on site and will be updated when the data is retrieved. Alternate communications options are being implemented and these stations will be back online as soon as possible. Expected dates for restored communications are Oct 8th for Tonopah and October 27th for Warm Springs and Duckwater.
September 10, 2008
Network communications failure, network provider notified and working on the problem. Station is collecting data and will update once the communication has been fixed.
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.
June 30, 2008
Communications at the St. George station are currently down. We will have the problem corrected as soon as possible.
June 23, 2008
We are currently troubleshooting communication issues with the Amargosa station.
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.
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.
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
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.
October 5, 2007
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.
September 18, 2007
station is currently being upgraded and should be back online in a few days.
August 30, 2007
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.
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
, 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
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.
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.
November 28, 2006
station is currently being upgraded and should be back online by Nov 29, 2006.
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
station is currently experiencing problems with the wind sensor. UPDATE: The wind sensor has been repaired 05/31/2006.
May 9, 2006
The Warm Springs
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.
April 19, 2006
station is currently experiencing a datalogger failure. We expect this to be resolved early next week.
March 22, 2006
station is currently being upgraded.
March 14, 2006
station is currently offline as it is having communications problems. The problems should be resolved later this week.
February 23, 2006
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.
December 23, 2005
station is back online.
December 15, 2005
The Rachel and Pahrump stations are experiencing intermittent communication issues, which are currently being investigated.
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.