FORM 4 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 OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person * Romero Mario   2. Issuer Name and Ticker or Trading Symbol US ECOLOGY, INC. [ECOL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP Operations (Last) (First) (Middle) 251 E. FRONT ST., SUITE 400 3. Date of Earliest Transaction (Month/Day/Year) 05/27/2015 (Street) BOISE, ID 83702 4. If Amendment, Date Original Filed(Month/Day/Year) 05/29/2015 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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

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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Performance Stock Units

(2)

05/27/2015

A

1,066

(2)

12/31/2017(1)

Common Stock

1,066 (2)

$ 0

1,066

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Romero Mario 251 E. FRONT ST. SUITE 400 BOISE, ID 83702			EVP Operations

Signatures

/s/ Mario Romero		06/01/2015
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Amendment filed to reflect correct expiration date of 12-31-17; previously reported as 12-31-18.
(2)	Grant of Performance Stock Units. Each performance stock unit represents a contingent right to receive 1 share of US Ecology, Inc. Common Stock. The number of shares reported represents the target number of shares underlying the performance stock units. The actual number of shares to be delivered in settlement of the performance stock units earned during the performance period will be based on US Ecology, Inc.'s total shareholder return over the three year vesting period relative to the S&P 600 (weighted at 50%) and a peer group of 20 companies in the environmental and facilities services industry (weighted at 50%) and could equal 200% of the target number of shares underlying the performance stock units. The performance stock units will settle as soon as practicable after December 31, 2017.

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