Sec Form 4/A Filing - MCNAMARA LARRY W @ PERMA FIX ENVIRONMENTAL SERVICES INC - 2009-09-14

FORM 4/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person MCNAMARA LARRY W 2. Issuer Name and Ticker or Trading Symbol PERMA FIX ENVIRONMENTAL SERVICES INC [ pesi] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) COO-Resigned effective 9/1/09 (Last) (First) (Middle) 111 BAYLOR DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 09/14/2009 (Street) OAK RIDGE, TN37830 4. If Amendment, Date Original Filed (MM/DD/YY) 09/16/2009 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 09/14/2009 M 250,000 A $ 1.86 250,000 D Common Stock 09/14/2009 S 63,664 D $ 2.4 186,336 D Common Stock 09/15/2009 S 5,116 ( 1 ) D $ 2.4 181,336 D Common Stock 09/15/2009 S 127,000 D $ 2.37 54,220 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option $ 1.25 ( 2 ) 04/10/2011 Common Stock 50,000 50,000 D Stock Option $ 1.75 ( 3 ) 04/03/2011 Common Stock 120,000 120,000 D Stock Option $ 2.19 ( 4 ) 02/27/2013 Common Stock 100,000 100,000 D Stock Option $ 1.86 09/14/2009 M 250,000 ( 5 ) 03/02/2012 Common Stock 250,000 $ 0 0 D Stock Option $ 2.28 ( 6 ) 08/05/2014 Common Stock 50,000 50,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other MCNAMARA LARRY W 111 BAYLOR DRIVE OAK RIDGE, TN37830 COO-Resigned effective 9/1/09 Signatures /s/Larry McNamara 09/25/2009 Signature of Reporting Person Date

Explanation of Responses:

( 1 )As previously reported on the Form 4 filed on 9/16/09, the amount of securities sold should have been 5,116 instead of 55,116. This Form 4/A is to correct the error on the 9/16/09 Form 4 filing. ( 2 )Non-Qualified Stock Option granted under the Company's 1993 Non-Qualified Stock Plan on 4/10/00. The Option is for a 10 year period and vests over a 5 year period, at 20% increment per year. ( 3 )Non-Qualified Stock Option granted under the Company's 1993 Non-Qualified Stock Plan on 4/03/00. The Option is for a 10 year period and vests over a 5 year period, at 20% increment per year. ( 4 )Non-Qualified Stock Option granted under the Company's 1993 Non-Qualified Stock Plan on 02/27/03. The Option is for a 10 year period and vests over a 5 year period, at 20% increment per year. ( 5 )Incentive Stock Option granted under the Company's 2004 Stock Option Plan on 3/2/06. The Option is for a 6 year period and vests over a 3 year period, at 1/3 increment per year. ( 6 )150,000 incentive stock option granted under the Company's 2004 Stock Option Plan on 8/5/08. The option is for a 6 year period and vests over a 3 year period, at 1/3 increment per year. Only 50,000 options are vested. 100,000 options forfeited effective September 1, 2009.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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