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Nuclear Security, Science & Energy, Environmental Stewardship

The Savannah River Site has a 75+ year record of support to U.S. military strategic deterrence. While serving as one of the nation’s most critical pieces in the weapons complex, the site is also one of the safest major industrial sites in the world. Ensuring national security, protecting workers, the public, and the environment, are our highest goals.

News Releases

The latest news and information on how the Savannah River Site continues to safely and efficiently protect the public health and the environment while supporting the nation’s nuclear deterrent and the transformation of the Site for future use.

All News

Missions & Programs

Dedicated to maintaining the highest possible safety and security standards, the Savannah River Site (SRS) is a key U.S. Department of Energy industrial complex, responsible for supporting our nation’s nuclear defense; preventing nuclear weapon proliferation; environmental stewardship and cleanup; waste management; and disposition of nuclear materials.

Learn More

Nuclear Deterrence

The purpose for establishing SRS in the 1950s was to support the nation’s nuclear deterrence and defense. Today, the Site continues to fulfill that purpose through the SRS Tritium facilities, construction of the Savannah River Plutonium Processing Facility, and preparing for the pit production mission.

Nuclear Nonproliferation

SRS is dedicated to the NNSA’s mission of safely managing and disposing of surplus weapons-grade materials. These efforts play a critical role in preventing the proliferation of nuclear weapons and reducing the threat of nuclear and radiological terrorism worldwide.  SRS Nuclear Nonproliferation includes Surplus Plutonium Disposition Operations and Programs.

Nuclear Materials Disposition and Used Fuel Storage

The safe and secure storage, handling and permanent disposition of used nuclear fuel and plutonium materials are long-standing missions at SRS.

Safety Programs

SRS is committed to its people, missions and the future. SRS has a long track record of being one of the safest sites in the DOE complex and one of the safest major industrial sites in the world. Protecting workers, the public, national security interests and the environment are our highest goals.

Waste Management

Waste management at SRS includes the safe disposition of both radioactive liquid waste and hazardous, sanitary, construction and demolition and transuranic solid waste.

Savannah River National Laboratory

SRNL puts science to work to help protect our environment, secure our clean energy future, serve our national defense and reduce emerging nuclear threats. SRNL is one of 17 national laboratories, and it is the only national lab sponsored by the Department of Energy’s Office of Environmental Management.

Environmental Stewardship

SRS is committed to ensuring that SRS activities are conducted in accordance with state and federal regulations while ensuring the safety of workers, the public and the environment.

Site tours provide an opportunity for those interested in SRS to better understand the Department of Energy’s facilities, missions, and workforce that changed the face of Aiken, Barnwell and Allendale Counties, nearby cities and helped win the Cold War.

Reserve Your Spot
Virtual Tour
Sign touting SRS as the safest construction job in the world
In 1952, SRS employees stand in front of a safety billboard that was
used to keep safety performance a core value for all employees.

Blast From The Past

Constructed during the early 1950s, the Savannah River Site was built to produce the basic materials used in the fabrication of nuclear weapons, primarily tritium and plutonium-239, in support of our nation’s defense programs. Five reactors were built to produce these materials along with a number of support facilities including two chemical separations plants, a heavy water extraction plant, a nuclear fuel and target fabrication facility, a tritium extraction facility and waste management facilities.

Learn more about the Savannah River Site

About

Mission & Vision

Outreach

Educational Programs

Our Site

Visit our location

Careers

Work With Us

Sign Up for SRS govDELIVERY Updates
Sign Up

govDelivery is the leading provider of government-to-citizen communication solutions. This free service provides access to a variety of automatic email notifications of news and events including Emergency Notifications, News Releases, Community Leaders and Stakeholder Updates, and Environmental Bulletins.

 
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Show total size of autoloaded options and its impact.

Total Size

 Size (bytes) Size (human) Impact
Uncompressed 78425 76.59 KB Consumes PHP memory
Compressed 19751 19.29 KB At 1000000 bytes, an error page will be shown to prevent overrunning the database. Read more
To un-autoload an option, you can use the following command:
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In some cases, the code which sets the option will need to be updated.

Starred (*) options are commonly large core options which should not be changed.

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Cron Event Statistics

Total Events

Core Events

Custom Events

Doing Cron

Next Event

Current Time
21 4 17 No 2026-05-15 20:58:32
1778878712
3 minutes 		20:55:35

Schedules

List of set schedules for cron events
Interval Hook Interval (S) Interval (M) Interval (H) Display Name
vip_config_sync_cron_interval30050.08Custom interval for VIP Config Sync. Currently set to 5 minutes
fifteen_minutes900150.25Every fifteen minutes
hourly3600601Once Hourly
jetpack_stats_eight_hours288004808Every Eight Hours
twicedaily4320072012Twice Daily
daily86400144024Once Daily
weekly60480010080168Once Weekly

Custom Events

Cron Events Listing
Next Execution Hook Interval Hook Interval Value Args
2026-05-15 20:58:32
1778878712
3 minutes 		vip_config_sync_cronvip_config_sync_cron_interval300s
5m
0.08h		No Args
2026-05-15 21:02:22
1778878942
7 minutes 		wp_privacy_delete_old_export_fileshourly3600s
60m
1h		No Args
2026-05-15 21:03:32
1778879012
8 minutes 		wpcom_vip_support_remove_user_via_cronhourly3600s
60m
1h		No Args
jetpack_clean_nonceshourly3600s
60m
1h		No Args
vip_aggregated_cron_hourlyhourly3600s
60m
1h		No Args
2026-05-16 04:12:29
1778904749
7 hours 		jetpack_stats_transient_cleanupjetpack_stats_eight_hours28800s
480m
8h		No Args
2026-05-16 08:03:32
1778918612
11 hours 		edac_cleanup_orphaned_issuestwicedaily43200s
720m
12h		No Args
2026-05-16 08:12:29
1778919149
11 hours 		wp_update_user_countstwicedaily43200s
720m
12h		No Args
2026-05-16 20:02:22
1778961742
23 hours 		wp_site_health_scheduled_checkweekly604800s
10080m
168h		No Args
recovery_mode_clean_expired_keysdaily86400s
1440m
24h		No Args
2026-05-16 20:03:32
1778961812
23 hours 		jetpack_v2_heartbeatdaily86400s
1440m
24h		No Args
edac_check_license_hookdaily86400s
1440m
24h		No Args
2026-05-16 20:03:33
1778961813
23 hours 		wpseo_permalink_structure_checkdaily86400s
1440m
24h		No Args
Automattic\VIP-backup_rolesdaily86400s
1440m
24h		No Args
2026-05-16 20:12:29
1778962349
23 hours 		wpseo_detect_default_seo_datadaily86400s
1440m
24h		No Args
wpseo-reindexdaily86400s
1440m
24h		No Args
delete_expired_transientsdaily86400s
1440m
24h		No Args

Core Events

Cron Events Listing
Next Execution Hook Interval Hook Interval Value Args
2026-05-16 08:02:22
1778918542
11 hours 		wp_version_checktwicedaily43200s
720m
12h		No Args
wp_update_pluginstwicedaily43200s
720m
12h		No Args
wp_update_themestwicedaily43200s
720m
12h		No Args
2026-05-16 20:12:29
1778962349
23 hours 		wp_scheduled_deletedaily86400s
1440m
24h		No Args