The Hexone Storage & Treatment Facility is located in the 200 West Area of the Hanford Site, & northwest of the Reduction-Oxidation (REDOX) Plant. In 1990, liquid waste was pumped from hexone storage tanks & sent through a distillation system to reduce radioactivity. ecology.wa.gov/REV9A

The 324 Building is located in the 300 Area, it was built for chemical & engineering studies. EPA is the lead regulatory agency for Superfund cleanup of this facility & the underlying soils, our agency is lead on 12 Dangerous Waste Management Units in the building containing mixed waste

There are more than 1,400 species of bats on Earth! They can be found on every continent other than Antarctica. Bats use echolocation to get food to eat & they are also the only mammals who can truly fly, making them unique! Several species of bats are found on the Hanford Site. #BatAppreciationDay

The Hanford Advisory Board is meeting next week! 📅April 22 ⏱️8:00 – 4:30 pm 📋Hybrid in-person and virtual meeting 🙋2435 Stevens Center Pl., Conference Room 1005. Richland, WA 99354 ℹ️ ecology.wa.gov/waste-toxics...

Today’s #TBT features a hobbyist who put together a mock trailer. Extracurricular activities at the Hanford Site were encouraged to keep workers engaged and entertained.

🏞️The Sacajawea Historical State Park & Interpretive Center, downriver of the Hanford Site, is located in Pasco at the confluence of the Snake and Columbia rivers. 🏞️This park preserves the historical significance of the area where the Lewis and Clark Expedition camped in 1805. #ScenicSpotlight

The ALE Reserve is the largest tract of shrub-steppe ecosystem remaining in Washington.

The 400 Area Waste Management Unit, next to the shutdown Fast Flux Test Facility, is used for storage of sodium, sodium hydroxide, sodium potassium, & contaminated debris. It is composed of two storage areas. It is used for storage, no treatment or disposal #hanfordpermitting ecology.wa.gov/REV9A

The 183 H solar evaporation basins. There are four basins near H Reactor that are about 500 ft from the Columbia River. Originally, they were part of the 183-H Water Treatment Facility & were later repurposed for disposal of contaminated liquids. The site closed in 1996. ecology.wa.gov/REV9A

Today’s #TBT shows a local church. However, it church didn’t start as a church, but was modified to be one. At this point in time, it was likely going to be demolished or repurposed as another facility.

The great egret is a long-legged, S-necked white bird, which is an uncommon resident of the Hanford Reach in spring, summer and fall. Egrets mostly eat fish, also frogs, salamanders, mice, & other small animals. They nest in colonies in trees, often with other egret & heron species. #ScenicSpotlight

The 300 Area included fuel manufacturing operations during plutonium production years, as well as experimental and laboratory facilities.

B Plant is one of Hanford’s five cruise-ship-sized processing plants, built in 1943. It extracted plutonium from irradiated uranium until 1957, before switching missions. #hanfordpermitting ecology.wa.gov/waste-toxics...

Happy Easter!

The Liquid Effluent Retention Facility (LERF) is located in Hanford’s 200 East Area & began operating in early 1990s. LERF stores liquid waste until it can be processed @ the Effluent Treatment Facility. Treated effluents go to a state-permitted discharge site. ecology.wa.gov/waste-toxics...

Today’s #TBT portrays a woman standing in the remains of a building. This image was used as some kind of promotional shot for the Hanford Site.

Eremothera minor is also known as small-flower evening-primrose. It is an annual short plant that is hairy with small white to pink sessile flowers. It grows with other rare plant species, including Eremothera pygmaea, Eriogonum codium, Astragalus columbia, and Calyptridium roseum. #ScenicSpotlight

Our Nuclear Waste Program office is hiring a Permit Writer/Unit Lead (Environmental Specialist 3) You will: ✔Conduct technical review ✔ Review permit applications ✔ Provide oversight of compliance & waste management activities 📅Apply by April 6, 2026. www.governmentjobs.com/careers/wash...

Check out the latest edition of Behind the Scenes at the Nuclear Waste Program! Learn about the work Ben Prueitt does as a Community Outreach and Environmental Education Specialist, and his path to Hanford: ecology.wa.gov/blog/march-2... En español: ecology.wa.gov/es-es/blog/m...

Today, in anticipation of our Hanford Sitewide Permit Rev. 9A renewal we will learn about the Effluent Treatment Facility (ETF). It is located at the Hanford’s 200 East Area and began operating in early 1990s. ETF treats liquid waste. #HanfordPermitting ecology.wa.gov/waste-toxics...

🏭The history of the Hanford Site is vast and full of fascinating facts. 📖Visit our history overview link to learn more! ecology.wa.gov/waste-toxics...

The 216 B 3 Main Pond is located northeast of the Waste Treatment Plant. At the peak of operations, it received 22 million gallons of wastewater daily. The pond held process & cooling water from several facilities in 200 East Area. It was filled with soil in 1994. ecology.wa.gov/waste-toxics...

🚐This trailer belonged to the Hanford Trailer Camp. 📫Many workers lived in the barracks, living situations were segregated by race and gender. 👨🏾‍👩‍👧🏾‍👦If workers wanted to bring their family, they could bring their own trailer. 🐈This woman has a pet, which wouldn't have been allowed in the barracks. #TBT

There are two comment periods open. Check them out and let us know your thoughts! How to comment: ecology.wa.gov/waste-toxics...

🦅Among Hanford's nesting birds is the Swainson's hawk. 🦅They are majestic hunters. 🦅This species has one of the longest known migration routes of any hawk—from Hanford to South America and back each year. 🦅They prey on small mammals.

One of the plants listed by the Washington Natural Heritage Program is the White Bluffs bladderpod.

The 216 B 63 Trench is located near B Plant in Hanford’s 200 East Area & operated from 1970 to 1992. The trench was an uncovered, unlined, manmade now covered with clean soil and marked with concrete posts. The source of waste has been blocked. #hanfordpermitting ecology.wa.gov/waste-toxics...

Today on #WorldWaterDay we want to spotlight the important work we perform at Hanford to remediate groundwater and protect the Columbia River. To learn more: ecology.wa.gov/water-shorel...

The Plutonium Uranium Extraction Plant PUREX was built in 1956 & operated until 1972. Operations restarted in 83. Its function was to extract plutonium & uranium from reactor fuel rods by dissolving them in acid. It is one of Hanford’s five plutonium processing plants. ecology.wa.gov/waste-toxics...

This woman was an operator @ the Hanford construction camp. Thousands of women were working there @ the time. Working @ Hanford was appealing since women could be making three to five times more than what they would have made in the south. Hanford was known to pay top dollar to their workers. #TBT

Here are some tips to consider recycling or keep it as part of a routine! #GlobalRecyclingDay ♻️Recycling is good for the environment because it lessens the energy we use ♻️It enhances the quality of water & air we breathe ♻️It combats climate change ecology.wa.gov/waste-toxics...

TODAY!!! Join us LIVE! 📅6 p.m. March 18 ➡️Let's Talk About Hanford covering the Hanford woman during the Cold War years ➕Learn more on our blog: ecology.wa.gov/blog/februar...

These grass kinds include various plant communities adapted to the region's semi-arid environment, contributing to the site's rich biodiversity.

The 216-A-29 ditch was used from 1955 to 1991 and located north of the Plutonium Uranium Extraction Plant (PUREX) in Hanford’s 200 East Area. It was an unlined ditch that went from PUREX to the B-trenches, which then discharged to the “B Ponds.” #hanfordpermitting ecology.wa.gov/waste-toxics...

‼️This week‼️ Join us LIVE THIS WEDNESDAY for our next Let's Talk About Hanford focused on the Hanford woman during the Cold War years! Learn more on our blog: ecology.wa.gov/blog/februar...

The Waste Treatment and Immobilization Plant (WTP). WTP is on 65 acres east of the 200 East Area. The plant began transforming low-activity waste into a stable glass form in October last year! #hanfordpermitting More information: ecology.wa.gov/waste-toxics...

Today’s #TBT takes us to the Hanford Site in 1944. Messenger girls provided courier services to the entire site. Here they posed for a photography session.

We're a week away from our next installment of our series Let's Talk About Hanford. You won’t want to miss this LIVE event! 📅6 p.m. March 18 ➡️Let's Talk About Hanford covering the Hanford woman during the Cold War years ecology.wa.gov/blog/februar...

The meteorological station provides real-time meteorological data as well as daily, monthly, and annual weather summaries, among other valuable information. www.hanford.gov/page.cfm/hms

Our Nuclear Waste Program office is hiring a 242-A Evaporator Regulatory Lead. We are looking for someone who will oversee the development, review, and compliance of the 242-A Evaporator permit, review documents & operational data Apply by March 23, 2026 www.governmentjobs.com/careers/wash...

“Green Islands” is a reference to how these waste sites were once identified. They are in Hanford’s 200 East & 200 West Areas & were colored green (on a map), located sporadically within burial trenches. Mixed waste was put here @ the burial grounds after Aug. 1987 ecology.wa.gov/waste-toxics...

Today we want to recognize all the women who are part of our Nuclear Waste Program. Our work at Hanford wouldn’t be possible without you! Happy #InternationalWomensDay #IWD

Part of our program’s outreach efforts include visiting schools throughout the state. If you'd like a presentation done for your organization or group, fill out our request form here: ecology.wa.gov/.../Public.....

The 300 Area Process Trenches operated from 1975 thru 1994 & received as much as 2.9 million gallons per day of contaminated wastewater from uranium fuel creation & several laboratories. Ecology approved its closure in 1998 but required long-term monitoring. ecology.wa.gov/waste-toxics...

Women had different roles @ the Hanford Site. They would perform jobs such as secretaries, assistants & like the one in this image, working as “driver” or “messenger” girls. Considering the size of the site, this was a full-time job & took these drivers to different areas on site the same day. #TBT

Today we commemorate the death anniversary of Herbert Parker who developed a radiological protection program for DuPont in the early 1940s. #OnThisDay More about Mr. Parker: ahf.nuclearmuseum.org/ahf/profile/...

Join us LIVE 6 p.m. March 18 for our next Let's Talk About Hanford focused on the Hanford woman during the Cold War years! Learn more on our blog: ecology.wa.gov/blog/februar...

March is Women’s History Month, a time to honor those women who have contributed to science, history & made an impact. One of those women was Leona Woods Marshal Libby, a physicist and was an instrumental piece in building the first nuclear reactor at Hanford. www.nps.gov/mapr/learn/h...

Today we celebrate the world’s wild animals and the contribution they make to the planet. Toads, badgers, and pelicans are just some of many wild species that call Hanford home. #WorldWildlifeDay