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Stephens & Stephens has obtained over $60 million through the Radiation Exposure Compensation Act and the Energy Employees Occupation Illness Compensation Act for our clients

Gloria ReynoldsGloria Reynolds
04:16 30 Mar 24
Stephens & Stephens was very helpful in getting my claim processed and helping me in getting my settlement, staff was knowledgeable and professional and very kind if I call and needed to ask a question they would call me back within a timely manner. Thank you so much for your help .Continue to be blessed Gloria
Dee GodfreyDee Godfrey
18:49 12 Mar 24
I was astounded with the service I received from Mr. Hugh Stephens in regard to my husband's compensation claim. He was not only efficient, but also compassionate, and communicated clearly and frequently. Because of his outstanding efforts and expertise, I, who am now a grieving widow, am unexpectedly stabile and secure. I had little to do. He did all the heavy lifting. I'm so very grateful for his help. I'll always remember not only his professionalism, but also his kindness.
Audrey OgletreeAudrey Ogletree
22:19 09 Mar 24
From: Laurence OgletreeI received good assistance from Stephens & Stephens in submitting the recent claim for increased impairment benefits from the Energy Workers program.
Randy MooreRandy Moore
14:48 07 Mar 24
I was a machinist at Honeywell F.M.&T.and developed bilateral tinnitus and bilateral sensorineural hearing loss. They helped me file a claim with EEOICPA in 2017. Stephen’s & Stephen’s was very good to work with, they take care of all the paperwork and help with any paperwork I receive from the Department of Labor. They stay on top of things helping with scheduling impairment reviews etc.I feel that without their help this would have been a very overwhelming process.I plan on still using them if any other illnesses occur due to my employment with Honeywell.
Mike DauzatMike Dauzat
15:54 02 Mar 24
I highly recommend Stevens and Stevens. Hugh Stevens and his staff are very professional and very friendly. They're extremely good at making sure you get the full amount of money you deserve. If you need a DOL lawyer, I highly recommend this team. I can't be more happy that I picked Stevens and Stevens.
Mary YbarraMary Ybarra
01:33 27 Feb 24
Stephen’s and Stephen’s has kept fight for my dad. Now they are fight for my mom. They are on top of things and I would recommend them to anyone who needs help and guidance with the Uranium mines.
Dianne HarperDianne Harper
01:02 17 Feb 24
Robert and I are very pleased with Mr. Hugh Stephens and all that he has done for us. From the first moment we spoke, we sensed that though Mr. Stephens exhibits sharp business acumen, he cares deeply about his clients and he has a huge heart.
Diane pontonDiane ponton
17:38 07 Feb 24
I tried to get others to help me with this claim, and it wasn"t until I hired Mr. Stephens that things started happening. I would recommend any one to get in touch with him . I would go to him again, if i ever needed to.
Judy LeonardJudy Leonard
22:26 06 Feb 24
I very much appreciate the successful litigation concerning my husband's Hanford work related illness. Stephens & Stephens LLP were thorough, caring, considerate, and fair during this difficult time.
Kenneth GKenneth G
18:23 03 Feb 24
Mr. Stephens was able to simplify an otherwise complicated lengthy process (DEEOIC) to file an initial claim as well as a claim for impairment benefits.
18:08 03 Feb 24
Frankie KnucFrankie Knuc
19:24 08 Jan 24
I had other attorneys hired in Cortez, Colorado and Grand Jct., Colorado to assist me with receiving my uranium claim, but they were not successful. I was advised by an employee of CNS of Stephens & Stephens, LLP good work. I contacted them & they took my case It was settled very quickly. I have been very pleased with this group & would advise others of their prompt service. I would recommend them to others. Respectfully, Frankie Knuckles
Rebecca ConsolRebecca Consol
19:57 22 Dec 23
My family used Stephen’s and Stephen’s for a settlement case. We were extremely pleased with all they did. They were very professional, easy to get a hold of, and invaluable when it came to answering questions and handling complicated Department of Labor issues and forms. They also did everything in a very timely manner. I have already recommended them to other people.
Thomas CliffordThomas Clifford
15:29 21 Dec 23
I have been represented by Hugh Stevens for several years now, He and his staff has made everything so easy for me. I had lung cancer from working in the uranium processing industry, they have opened so many doors for me and made dealing with DOL so much easier. They always answer my questions in a very timely manner. I have referred several other people to him and he has been able to get them through this process also. There are benefits that I was not aware of that he has brought to my attention and been able to lead me through the process of obtaining them. I would most highly recommend him to lead anyone through this process.
Lonnie killingHawkLonnie killingHawk
02:35 14 Dec 23
When I first contacted Stephens & Stephens I was at the end of my rope with DOL. Hough and his staff got me on track and handled everything with DOL and just made this process so easy. Do not know where I'd be with out them. They are able to communicate at a layman's level and understand the client. Would strongly recommend this firm.
Ruthy LyonRuthy Lyon
21:00 28 Sep 23
Our initial conversation with Mr. Stephens was productive & reassuring. His previous experience with similar cases was obvious and very helpful, in both asking us specific questions for clarification & also addressing our own questions. Breanna is also a great asset to their team.
James O'DayJames O'Day
15:07 13 Sep 23
I have referred several friends to Hugh Stephens and they were more satisfied than they ever expected. I would refer him with confidence to anyone in need. I trust when he speaks for me, for example, in court. He is a good communicator and a deep thinker. He is well respected in his profession. He handles environmental law, injury law, and medical malpractice. He is tactful and direct and knows what he is doing. He knows the legal briar patches well.

EEOICPA Covered Facilities: Mallinckrodt Chemical Co. Destrehan St. Plant

The EEOICPA was passed in 2000. It provides compensation to workers who became ill as a result of their employment manufacturing nuclear weapons in the USA, as well as their spouses, children, and grandchildren. Mallinckrodt Chemical Co. Destrehan St. Plant EEOICPA coverage is available for qualified former Workers and their families.

Are you eligible for compensation? If you or a family member worked at this or another DOE facility and became ill, you may be entitled to compensation of up to $400K plus medical benefits. Call EEOICPA Counsel Hugh Stephens at 1-855-548-4494 or fill out our free claim evaluation, We can help even if you’ve already filed, even if your claim was denied!

Here, we have compiled publicly available information and documentation about the facilities covered by the Act to clarify how their activities relate to the Energy Employees Occupational Illness Compensation Program Act.

Mallinckrodt Chemical Co. Destrehan St. Plant

Also Known As: St. Louis Downtown Site, Mallinckrodt Chemical Works, MCW
State: Missouri
Location: St. Louis
Time Period: DOE 1942-1962; 1995 (remediation)
Facility Type: Department of Energy

Facility Description: From 1942 to 1957, Mallinckrodt Chemical Company conducted a variety of milling and recovery operations with uraniumchemical compounds at the St. Louis Downtown Site, also known as the Destrehan Street Plant. The plant refined uranium ore, ultimately producing uranium metal. The activities supported research, development, and production programs for the national defense program. By 1957, the Mallinckrodt Chemical Company had processed more than 45,000 metric tons (50,000 tons) of natural uranium products at its facilities. During closeout of operations in 1957, government-owned buildings were either dismantled or transferred to Mallinckrodt as part of a settlement. Decontamination work continued to 1962 when the plant was released back to Mallinckrodt.

This listing of the Mallinckrodt Chemical Works (MCW), is intended to cover the entire area bounded in part by North* Broadway, Angelroot Street, and Salisbury Street. Destrehan Street runs through the middle of the entire area and is a common way to reference the plant, but is by no means the only valid building address. Many buildings are also on Mallinckrodt Street. Coverage includes, but is not limited, to the Main Plant, Plant 4, Plant 6, Plant 6e and Plant 7.

Throughout the course of its operations, the potential for beryllium exposure existed at this site.

*The original address for some buildings would have been Broadway Street. Today, these same buildings have the address of North Broadway Street.

Mallinckrodt Chemical Co. Destrehan St. Plant is listed as a Department of Energy (DOE) site under the EEOICPA.

Special Exposure Cohort (SEC) Classes:
Mallinckrodt Chemical Works, Destrehan Street Facility (1942-1948)–Employees of the DOE or DOE contractors or subcontractors employed by the Uranium Division of Mallinckrodt Chemical Works, Destrehan Street Facility, during the period from 1942 through 1948 and who were employed for a number of work days aggregating at least 250 work days either solely under this employment or in combination with work days within the parameters (excluding aggregate work day requirements) established for other classes of employees included in the SEC

Mallinckrodt Chemical Works, Destrehan Street Facility (1949-1957)–Department of Energy (DOE) employees or DOE contractor or subcontractor employees who worked in the Uranium Division at the Destrehan Street Facility of Mallinckrodt Chemical Works from 1949 to 1957 and who were employed for a number of work days aggregating at least 250 work days either solely under this employment or in combination with work days within the parameters (excluding aggregate work day requirements) established for other classes of employees included in the SEC

Mallinckrodt Chemical Works, Destrehan Street Facility (1958)–All employees of DOE, its predecessor agencies, and their contractors and subcontractors who worked in the Uranium Division at the Mallinckrodt Chemical Co., Destrehan Street Plant in St. Louis, Missouri, from January 1, 1958 to December 31, 1958, for a number of work days aggregating at least 250 work days, occurring either solely under this employment or in combination with work days within the parameters established for one or more other classes of employees included in the SEC

As of 01/08/2023, the total compensation paid under Parts B and E of the EEOICPA, including medical compensation, for workers suffering from the effects of having worked at the Mallinckrodt Chemical Co., Destrehan St. Plant is $122,785,048. Click here for a current accounting of compensation paid to former Mallinckrodt Chemical Workers under the EEOICPA.

Mallinckrodt Chemical Co., Destrehan St. Plant Workers:
If you or your parent worked at this or any other DOE or AWE facility and became ill, you may be entitled to compensation of up to $400K plus medical benefits from the US Department of Labor. Call EEOICPA Counsel Hugh Stephens at 1-855-EEOICPA (336-4272) or fill out the form to the right, whether or not you have already filed a claim and even if your claim has been accepted or denied.

We can help with all OWCP (Federal Workers Compensation) claims, impairments, wage loss and health care. 2495 Main Street, Suite 442 Buffalo, NY.

These properties were formerly used in the fabrication of purified uranium compounds and metals from uranium feed materials. All work was carried out under contract with the U.S. Government.

Mallinckrodt’s work at plants in St. Louis began in 1942 and continued through 1957, at which time the facilities were shut down for decontamination. This history includes only the work carried out atplants in the St. Louis, Missouri, area and as such does not cover work at Weldon Springs or at other facilities.

The initial contract work consisted of the production of uranium trioxide (U03) and uranium dioxide (UO2) to be used in the nuclear pile that was currently being constructed in Chicago. Impure natural feed material containing,low levels of uranium was processed to yield a concentrate of uranium trioxide that could be used for a reactor core. In addition, extra steps allowed the production of uranium dioxide (UO2)and uranium tetrafluoride (UF4). Uranium derby metal also was produced and then vacuum recast to form ingot metal. All of the initial contract work appears to involve 238U, with no process existing for the purification and working of 232Th, highly enriched uranium, UF6, fission products, or by-product material (Fig. 2).


A variety of work processes was carried on at various times during the period 1942 to 1966 including: (1) machining of natural uranium metal rods to make reactor fuel slugs, (2) reverting UF4 to UO2 or to U3O8, (3) recovering scrap uranium metal, (4) producing U02F2, (5) extracting and concentrating 230Th from pitchblende raffinate, and(6) experimentally purifying or reworking very low enrichment UF4.

Work was carried on to extract uranium from pitchblende ore and to concentrate this extract. In addition, 226Ra and its daughters were extracted, along with the lead content, since the African Metals Company retained ownership of the radium content of the ore. The radium and lead were precipitated when the pitchblende after dissolution in nitric acid was combined with sulfuric acid. This precipitate was sent to the Lake Ontario Ordnance Works, Lewiston, New York, for storage. Much of this material was moved to facilities operated by National Lead of Ohio, Fernald, Ohio in 1952. Beginning about 1945, process wastes and residues were taken from the St. Louis plants and stored at a government storage site near the St. Louis Airport.

During the 24-year period (1942 to 1966), the company designed and operated feed materials facilities in St. Louis and St. Charles County,Missouri, which employed a total of about 3,300 individuals and produced more than 100,000 tons of purified natural uranium materials. The plants in St. Louis, Missouri, were constructed and operated on Mallinckrodt land. In St. Charles County, the land, buildings, and all equipment belonged to the U.S. Government.

The contractual work from 1942 to 1947 was carried out under the Manhattan Engineer District (MED) project. This contract was transferred in 1947 to the newly formed AEC and remained under the AEC New York Operations until 1954. At this time, the contract was transferred to the AEC Oak Ridge Operations and remained there until 1966, at which time the contract was terminated.

Four plants were in existence during the history of Mallinckrodt’s government contracts. All of the work from 1942 to 1945 was carried out in previously existing structures at the Main Plant and at Plant 4 in the city of St. Louis. The Main Plant was used as a refinery forU308 feed and pitchblende until 1945, at which time these operations were closed. A new refinery called Plant 6 and located at 65 Destrehan in St. Louis began operations in 1946 to process pitchblende ore and produce U02.

Additional plants began operating at the Destrehan Street location in the period 1950-51 and went under the names Plant 6E and Plant 7. Plant 6E produced uranium metal while Plant 7 was designed to produce green salt (UF4). Plant 4 operations ended at this time, and its facilities were modified to be used as a metallurgical pilot plant for development work with uranium metal. This operation continued until 1956.


NIOSH SEC Petition Evaluation Reports
Petition 12 (Jan 1, 1942 to Dec 31, 1957)
SEC Petition Evaluation Report, Petition SEC-00012-1, Report Rev # Draft
Report Submittal Date 07-21-2004

SEC Petition Evaluation Report, SEC-00012-2, Report Rev # Draft 2
Report Submittal Date 07-21-2004

SEC Petition Evaluation Report, Petition SEC-00012-1 and 2, Rev # Supplement
Report Submittal Date: 03-30-2005

Petition 133 (Jan 1, 1958 to Dec 31, 1958)
SEC Petition Evaluation Report, Petition SEC-00133, Report Rev #: 0
Report Submittal Date: December 1, 2008

Technical Basis Documents:
Site Profile
Basis for Development of an Exposure Matrix for the Mallinckrodt Chemical Company St. Louis Downtown Site
and the St. Louis Airport Site, St. Louis, Missouri

Review of NIOSH Site Profile for Mallinckrodt Chemical Co., St. Louis Downtown Site, St. Louis, MO
January 31, 2005

Special External Dose Reconstruction Considerations for Mallinckrodt Workers
Effective Date: 10/26/2005