January 3, 2008 - St. George Outage

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 - Duckwater Update

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.

September 18, 2007 - Duckwater Upgrade

The Duckwater station is currently being upgraded and should be back online in a few days.

August 30, 2007 - Rachel Communications

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.

August 9, 2007 - Satellite Communications Restored

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.

August 7, 2007 - Milford Gross Alpha and Beta Results

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.

August 7, 2007 - Satellite Communications Outage

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.

August 3, 2007 - Station Data Down

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 - Milford calibration

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.

July 16, 2007 - Milford gamma readings

Recent elevated 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.

April 16, 2007 - Amargosa Valley outage

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.

April 11, 2007 - Duckwater, Mesquite, Overton outage

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.

April 6, 2007 - Pioche Communications outage

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.

February 6, 2007 - Communications outage

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 - Tonopah Upgrade

The Tonopah station is currently being upgraded and should be back online by Nov 29, 2006.

November 20, 2006 - Satellite Communications

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.

August 24, 2006 - Lincoln County Station problems

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.

May 30, 2006 - Mesquite wind sensor

The Mesquite station is currently experiencing problems with the wind sensor. UPDATE: The wind sensor has been repaired 05/31/2006.

May 9, 2006 - Communication Problems

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.

April 19, 2006 - Nyala

The Nyala station is currently experiencing a datalogger failure. We expect this to be resolved early next week.

March 22, 2006 - Nyala Upgrades

The Nyala station is currently being upgraded.

March 14, 2006 - Mesquite offline

The Mesquite station is currently offline as it is having communications problems. The problems should be resolved later this week.

February 23, 2006 - Tecopa/Shoshone online

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.

February 16, 2006 - Tecopa almost ready

The Tecopa station is almost ready. It is experiencing some communications problems and should be online shortly after they are resolved.

February 2, 2006 - Garden Valley upgrade

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 - Pahrump online

The Pahrump station is back online.

December 15, 2005 - Communication issues

The Rachel and Pahrump stations are experiencing intermittent communication issues, which are currently being investigated.

December 1, 2005 - Rachel online

The Rachel station is back online.

November 18, 2005 - Communication issues at Pahrump and Rachel

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.

August 3, 2005 - Nyala site date correction

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.

August 2, 2005 - Garden Valley site outage

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.

July 1, 2005 - Communications outage at Boulder City and Henderson

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 12/11/2004

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

Repairs expected on 9/15/2004.

More near realtime updates 8/31/2004

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 8/25/2004

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 7/12/2004

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 6/20/2004

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 1/27/2004

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 9/26/2003

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 7/2/2003

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.