UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Willdan Group, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 96924N100 (CUSIP Number) December 31, 2009 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP No. 96924N100 SCHEDULE 13G/A Page 2 of 7 1 Names of Reporting Persons RBF Capital, LLC IRS Identification No. of Above Person (entities only) 68-0383896 2 Check the Appropriate Box if a Member of a Group (a) [ ] (b) [ ] 3 SEC USE ONLY 4 Citizenship or Place of Organization Delaware 5 Sole Voting Power 541,141 NUMBER OF 6 Shared Voting Power SHARES BENEFICIALLY -0- OWNED BY EACH REPORTING 7 Sole Dispositive Power PERSON WITH 541,141 8 Shared Dispositive Power -0- 9 Aggregate Amount Beneficially Owned by each Reporting Person 541,141 10 Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* [ ] 11 Percent of Class Represented by Amount in Row 9 7.51% 12 Type of Reporting Person (See Instructions) OO CUSIP No. 96924N100 SCHEDULE 13G/A Page 3 of 7 1 Names of Reporting Persons Richard B. Fullerton IRS Identification No. of Above Person (entities only) 2 Check the Appropriate Box if a Member of a Group (a) [ ] (b) [ ] 3 SEC USE ONLY 4 Citizenship or Place of Organization United States 5 Sole Voting Power 541,141 NUMBER OF 6 Shared Voting Power SHARES BENEFICIALLY -0- OWNED BY EACH REPORTING 7 Sole Dispositive Power PERSON WITH 541,141 8 Shared Dispositive Power -0- 9 Aggregate Amount Beneficially Owned by each Reporting Person 541,141 10 Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* [ ] 11 Percent of Class Represented by Amount in Row 9 7.51% 12 Type of Reporting Person (See Instructions) IN CUSIP No. 96924N100 SCHEDULE 13G/A Page 4 of 7 Item 1(a). Name of Issuer. Willdan Group, Inc. Item 1(b). Address of Issuer's Principal Executive Offices. 2401 East Katella Avenue, Suite 300, Anaheim, CA 92806 Item 2(a). Name of Person Filing. RBF Capital, LLC and Richard B. Fullerton Item 2(b). Address of Principal Business Office or, if none, Residence. The business address of RBF Capital, LLC and Richard B. Fullerton is 100 Drakes Landing Rd. Suite 300, Greenbrae CA 94904 Item 2(c). Citizenship. RBF Capital, LLC is a Delaware limited Liability company and Richard B. Fullerton is a United States citizen. Item 2(d). Title of Class of Securities. Common Stock Item 2(e). CUSIP Number. 96924N100 Item 3. If this statement is filed pursuant to 240.13d- 1(b) or 240.13d-2(b) or (c), check whether the person filing is a: (a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o). (b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c). (c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c). CUSIP No. 96924N100 SCHEDULE 13G/A Page 5 of 7 (d) [ ] Investment company registered under section 8 of the Investment Company act of 1940 (15 U.S.C. 80a-8). (e) [ ] An investment adviser in accordance with 240.13d- 1(b)(1)(ii)(E). (f) [ ] An employee benefit plan or endowment fund in accordance with 240.13d-1(b)(1)(ii)(F). (g) [ ] A parent holding company or control person in accordance with 240.13d-1(b)(1)(ii)(G). (h) [ ] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813). (i) [ ] A church plan that is excluded form the definition of an investment company under section 3(c)(14) of the Investment Company act of 1940 (15 U.S.C. 80a-3). (j) [ ] Group, in accordance with 240.13d-1(b)(1)(ii)(J). Item 4. Ownership. Reference is made hereby made to Items 5-9 and 11 of pages two (2) and three (3) of this SCHEDULE 13G/A, which Items are incorporated by reference herein. CUSIP No. 96924N100 SCHEDULE 13G/A Page 6 of 7 Item 5. Ownership of Five Percent or Less of a Class. Not applicable. Item 6. Ownership of More Than Five Percent on Behalf of Another Person. RBF Capital, LLC is deemed to be the beneficial owner of the number of securities reflected in Item 5-9 and 11 of page two (2) of this SCHEDULE 13G/A pursuant to separate arrangements whereby it acts as investment adviser (not registered) to certain persons. Each person for whom RBF Capital, LLC acts as investment adviser has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Common Stock purchased or held pursuant to such arrangements. Richard B. Fullerton is deemed to be the beneficial owner of the number of securities reflected in Items 5-9 and 11 on page three (3) of this SCHEDULE 13G/A pursuant to his ownership interest in RBF Capital, LLC Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company. Not applicable. Item 8. Identification and Classification of Members of the Group. Not applicable. Item 9. Notice of Dissolution of Group. Not applicable. Item 10. Certification. By signing below, RBF Capital, LLC and Richard B. Fullerton certify that, to the best of their knowledge and belief, the securities referred to above on pages two (2) and three (3) of this SCHEDULE 13G/A were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. CUSIP No. 96924N100 SCHEDULE 13G/A Page 7 of 7 Signature After reasonable inquiry and to the best of their knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct. DATED: January 18, 2010 RBF Capital, LLC /s/ Richard B. Fullerton ------------------------ By: Richard B. Fullerton its: Managing Member Richard B. Fullerton /s/ Richard B. Fullerton ------------------------ By: Richard B. Fullerton Attention: Intentional misstatements or omissions of fact constitute Federal criminal violations (See 18 U.S.C. 1001)