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UNITED STATES OF AMERICA
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
_______________________
FORM 10-Q

x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	
 	 	
FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2013	
OR	
 	 	
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	

FOR THE TRANSITION PERIOD FROM         TO       

Commission File Number 001-34223
_______________________
CLEAN HARBORS, INC.
(Exact name of registrant as specified in its charter)

Massachusetts	 	04-2997780	
(State or Other Jurisdiction of Incorporation or Organization)	 	(IRS Employer Identification No.)	
 	 	 	
42 Longwater Drive, Norwell, MA	 	02061-9149	
(Address of Principal Executive Offices)	 	(Zip Code)	
(781) 792-5000
(Registrant’s Telephone Number, Including area code)
_______________________
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes  x   No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes   x   No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer x	 	Accelerated filer o	
 	 	 	
Non-accelerated filer o	 	Smaller reporting company o	
(Do not check if a smaller reporting company)	 	 	

Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Exchange Act). Yes  o   No  x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

 	 	 	
Common Stock, $.01 par value	 	60,659,766	
(Class)	 	(Outstanding as of Nov 1, 2013)	

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CLEAN HARBORS, INC.

QUARTERLY REPORT ON FORM 10-Q

TABLE OF CONTENTS

 	 	
 	Page No.	
 	 	
PART I: FINANCIAL INFORMATION	 	
 	 	
ITEM 1: Unaudited Financial Statements	 	
Consolidated Balance Sheets	1	
Unaudited Consolidated Statements of Income	2	
Unaudited Consolidated Statements of Comprehensive Income	3	
Unaudited Consolidated Statements of Cash Flows	4	
Unaudited Consolidated Statements of Stockholders’ Equity	5	
Notes to Unaudited Consolidated Financial Statements	6	
 	 	
ITEM 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations	32	
 	 	
ITEM 3: Quantitative and Qualitative Disclosures About Market Risk	44	
 	 	
ITEM 4: Controls and Procedures	45	
 	 	
PART II: OTHER INFORMATION	 	
 	 	
ITEM 1: Legal Proceedings	46	
ITEM 1A: Risk Factors	46	
ITEM 6: Exhibits	46	
Signatures	47	

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CLEAN HARBORS, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

ASSETS

(in thousands)

 	 	 	 	 	 	 	 	 	
 	 	September 30,
2013	 	December 31,
2012	
ASSETS	 	(unaudited)	 	 	
Current assets:	 	 	 	 	
Cash and cash equivalents	 	$	248,635	
 	 	$	229,836	
 	
Marketable securities	 	11,787	
 	 	11,778	
 	
Accounts receivable, net of allowances aggregating $17,824 and $11,125, respectively	 	603,054	
 	 	541,423	
 	
Unbilled accounts receivable	 	42,122	
 	 	27,072	
 	
Deferred costs	 	17,097	
 	 	6,888	
 	
Prepaid expenses and other current assets	 	41,880	
 	 	75,778	
 	
Inventories and supplies	 	155,301	
 	 	171,441	
 	
Deferred tax assets	 	21,898	
 	 	22,577	
 	
Total current assets	 	1,141,774	
 	 	1,086,793	
 	
Property, plant and equipment, net	 	1,615,427	
 	 	1,531,763	
 	
Other assets:	 	 	 	 	
Long-term investments	 	4,352	
 	 	4,354	
 	
Deferred financing costs	 	21,565	
 	 	21,657	
 	
Goodwill	 	590,152	
 	 	593,771	
 	
Permits and other intangibles, net	 	567,776	
 	 	572,817	
 	
Other	 	15,806	
 	 	14,651	
 	
Total other assets	 	1,199,651	
 	 	1,207,250	
 	
Total assets	 	$	3,956,852	
 	 	$	3,825,806	
 	
LIABILITIES AND STOCKHOLDERS' EQUITY	 	 	 	 	
Current liabilities:	 	 	 	 	
Current portion of capital lease obligations	 	$	1,973	
 	 	$	5,092	
 	
Accounts payable	 	321,097	
 	 	256,468	
 	
Deferred revenue	 	61,912	
 	 	50,942	
 	
Accrued expenses	 	256,813	
 	 	232,429	
 	
Current portion of closure, post-closure and remedial liabilities	 	27,737	
 	 	24,121	
 	
Total current liabilities	 	669,532	
 	 	569,052	
 	
Other liabilities:	 	 	 	 	
Closure and post-closure liabilities, less current portion of $7,512 and $8,791, respectively	 	39,982	
 	 	45,457	
 	
Remedial liabilities, less current portion of $20,225 and $15,330, respectively	 	151,866	
 	 	151,890	
 	
Long-term obligations	 	1,400,000	
 	 	1,400,000	
 	
Capital lease obligations, less current portion	 	1,669	
 	 	2,879	
 	
Deferred taxes, unrecognized tax benefits and other long-term liabilities	 	217,683	
 	 	224,456	
 	
Total other liabilities	 	1,811,200	
 	 	1,824,682	
 	
Stockholders’ equity:	 	 	 	 	
Common stock, $.01 par value:	 	 	 	 	
Authorized 80,000,000; shares issued and outstanding 60,612,702 and 60,385,453
 shares, respectively	 	606	
 	 	604	
 	
Shares held under employee participation plan	 	(469	)	 	(469	)	
Additional paid-in capital	 	893,822	
 	 	880,979	
 	
Accumulated other comprehensive income	 	12,070	
 	 	49,632	
 	
Accumulated earnings	 	570,091	
 	 	501,326	
 	
Total stockholders’ equity	 	1,476,120	
 	 	1,432,072	
 	
Total liabilities and stockholders’ equity	 	$	3,956,852	
 	 	$	3,825,806	
 	
The accompanying notes are an integral part of these unaudited consolidated financial statements.

1

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CLEAN HARBORS, INC. AND SUBSIDIARIES

UNAUDITED CONSOLIDATED STATEMENTS OF INCOME

(in thousands except per share amounts)

 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	Three Months Ended	 	Nine Months Ended	
 	 	September 30,	 	September 30,	
 	 	2013	 	2012	 	2013	 	2012	
Revenues:	 	 	 	 	 	 	 	 	
Service revenues	 	$	702,033	
 	 	$	503,728	
 	 	$	2,048,527	
 	 	$	1,523,767	
 	
Product revenues	 	205,502	
 	 	30,078	
 	 	581,699	
 	 	105,179	
 	
Total revenues	 	907,535	
 	 	533,806	
 	 	2,630,226	
 	 	1,628,946	

Cost of revenues (exclusive of items shown separately below)	 	 	 	 	 	 	 	 	
Service revenues	 	478,434	
 	 	348,758	
 	 	1,402,409	
 	 	1,056,174	
 	
Product revenues	 	168,685	
 	 	24,182	
 	 	495,060	
 	 	84,704	
 	
Total cost of revenues	 	647,119	
 	 	372,940	
 	 	1,897,469	
 	 	1,140,878	

Selling, general and administrative expenses	 	114,464	
 	 	60,339	
 	 	365,546	
 	 	197,892	
 	
Accretion of environmental liabilities	 	2,914	
 	 	2,488	
 	 	8,628	
 	 	7,409	
 	
Depreciation and amortization	 	69,430	
 	 	41,300	
 	 	196,904	
 	 	116,794	
 	
Income from operations	 	73,608	
 	 	56,739	
 	 	161,679	
 	 	165,973	
 	
Other (expense) income	 	(150	)	 	(91	)	 	2,030	
 	 	(465	)	
Loss on early extinguishment of debt	 	—	
 	 	(26,385	)	 	—	
 	 	(26,385	)	
Interest expense, net of interest income of $96 and $362 for the quarter and year-to-date ended 2013 and $221 and $623 for the quarter and year-to-date ended 2012, respectively	 	(19,326	)	 	(11,596	)	 	(58,784	)	 	(33,836	)	
Income before provision for income taxes	 	54,132	
 	 	18,667	
 	 	104,925	
 	 	105,287	
 	
Provision for income taxes	 	18,771	
 	 	6,308	
 	 	36,160	
 	 	37,487	
 	
Net income	 	$	35,361	
 	 	$	12,359	
 	 	$	68,765	
 	 	$	67,800	

Earnings per share:	 	 	 	 	 	 	 	 	
Basic	 	$	0.58	
 	 	$	0.23	
 	 	$	1.14	
 	 	$	1.27	
 	
Diluted	 	$	0.58	
 	 	$	0.23	
 	 	$	1.13	
 	 	$	1.27	

Weighted average common shares outstanding - basic	 	60,610	
 	 	53,374	
 	 	60,542	
 	 	53,303	
 	
Weighted average common shares outstanding - diluted	 	60,760	
 	 	53,565	
 	 	60,692	
 	 	53,519	

The accompanying notes are an integral part of these unaudited consolidated financial statements.

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CLEAN HARBORS, INC. AND SUBSIDIARIES

UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

 	 	Three Months Ended	 	Nine Months Ended	
 	 	September 30,	 	September 30,	
 	 	2013	 	2012	 	2013	 	2012	
Net income	 	$	35,361	
 	 	$	12,359	
 	 	$	68,765	
 	 	$	67,800	
 	
Other comprehensive income (loss):	 	 	 	 	 	 	 	 	
Unrealized gains on available-for-sale securities (net of taxes of $153 and $61 for the quarter and year-to-date 2013 and $146 and $63 for the quarter and year-to date 2012, respectively)	 	1,074	
 	 	894	
 	 	359	
 	 	310	
 	
Foreign currency translation adjustments	 	20,731	
 	 	29,086	
 	 	(37,921	)	 	27,393	
 	
Other comprehensive income (loss)	 	21,805	
 	 	29,980	
 	 	(37,562	)	 	27,703	
 	
Comprehensive income	 	$	57,166	
 	 	$	42,339	
 	 	$	31,203	
 	 	$	95,503	

The accompanying notes are an integral part of these unaudited consolidated financial statements.

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CLEAN HARBORS, INC. AND SUBSIDIARIES

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

 	 	Nine Months Ended	
 	 	September 30,	
 	 	2013	 	2012	
Cash flows from operating activities:	 	 	 	 	
Net income	 	$	68,765	
 	 	$	67,800	
 	
Adjustments to reconcile net income to net cash from operating activities:	 	 	 	 	
Depreciation and amortization	 	196,904	
 	 	116,794	
 	
Pre-tax, non-cash acquisition accounting adjustments	 	13,559	
 	 	—	
 	
Allowance for doubtful accounts	 	5,281	
 	 	809	
 	
Amortization of deferred financing costs and debt discount	 	2,539	
 	 	1,173	
 	
Accretion of environmental liabilities	 	8,628	
 	 	7,409	
 	
Changes in environmental liability estimates	 	(2,417	)	 	(3,553	)	
Deferred income taxes	 	272	
 	 	(494	)	
Stock-based compensation	 	6,389	
 	 	5,235	
 	
Excess tax benefit of stock-based compensation	 	(1,589	)	 	(1,786	)	
Income tax benefit related to stock option exercises	 	1,579	
 	 	1,776	
 	
Other expense (income)	 	(2,030	)	 	465	
 	
Write-off of deferred financing costs and debt premium	 	—	
 	 	5,341	
 	
Environmental expenditures	 	(15,928	)	 	(7,833	)	
Changes in assets and liabilities, net of acquisitions	 	 	 	 	
Accounts receivable	 	(72,377	)	 	59,881	
 	
Inventories and supplies	 	1,710	
 	 	(7,692	)	
Other current assets	 	11,860	
 	 	12,822	
 	
Accounts payable	 	37,257	
 	 	(18,969	)	
Other current and long-term liabilities	 	19,712	
 	 	(6,486	)	
Net cash from operating activities	 	280,114	
 	 	232,692	
 	
Cash flows from investing activities:	 	 	 	 	
Additions to property, plant and equipment	 	(207,641	)	 	(130,326	)	
Proceeds from sales of fixed assets	 	3,700	
 	 	4,190	
 	
Acquisitions, net of cash acquired	 	(59,458	)	 	(92,475	)	
Additions to intangible assets, including costs to obtain or renew permits	 	(4,357	)	 	(2,409	)	
Purchase of marketable securities	 	—	
 	 	(10,517	)	
Other	 	(11	)	 	5,120	
 	
Net cash used in investing activities	 	(267,767	)	 	(226,417	)	
Cash flows from financing activities:	 	 	 	 	
Change in uncashed checks	 	9,754	
 	 	(13,955	)	
Proceeds from exercise of stock options	 	399	
 	 	231	
 	
Remittance of shares, net	 	(599	)	 	(1,604	)	
Proceeds from employee stock purchase plan	 	5,327	
 	 	4,627	
 	
Deferred financing costs paid	 	(2,446	)	 	(9,638	)	
Payments on capital leases	 	(4,096	)	 	(5,303	)	
Principal payment on debt	 	—	
 	 	(520,000	)	
Issuance of senior unsecured notes, including premium	 	—	
 	 	800,000	
 	
Issuance costs related to 2012 issuance of common stock	 	(250	)	 	—	
 	
Distribution of cash earned on employee participation plan	 	—	
 	 	(55	)	
Excess tax benefit of stock-based compensation	 	1,589	
 	 	1,786	
 	
Net cash from financing activities	 	9,678	
 	 	256,089	
 	
Effect of exchange rate change on cash	 	(3,226	)	 	527	
 	
Increase in cash and cash equivalents	 	18,799	
 	 	262,891	
 	
Cash and cash equivalents, beginning of period	 	229,836	
 	 	260,723	
 	
Cash and cash equivalents, end of period	 	$	248,635	
 	 	$	523,614	

Supplemental information:	 	 	 	 	
Cash payments for interest and income taxes:	 	 	 	 	
Interest paid	 	$	58,084	
 	 	$	41,176	
 	
Income taxes paid	 	8,386	
 	 	5,578	
 	
Non-cash investing and financing activities:	 	 	 	 	
Property, plant and equipment accrued	 	39,804	
 	 	31,978	
 	
Transfer of inventory to property, plant and equipment	 	11,369	
 	 	—	
 	
The accompanying notes are an integral part of these unaudited consolidated financial statements.

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CLEAN HARBORS, INC. AND SUBSIDIARIES

UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands)

 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	Common Stock	 	Shares Held
Under
Employee
Participation
Plan	 	 	 	Accumulated
Other
Comprehensive Income	 	 	 	 	 	
 	Number
of
Shares	 	$ 0.01
Par
Value	 	 	 	Additional
Paid-in
Capital	 	 	 	Accumulated
Earnings	 	Total
Stockholders’
Equity	 	 	 	 	 	 	
Balance at January 1, 2013	60,385	
 	 	$	604	
 	 	$	(469	)	 	$	880,979	
 	 	$	49,632	
 	 	$	501,326	
 	 	$	1,432,072	
 	 	 	 	 	 	 	
Net income	—	
 	 	—	
 	 	—	
 	 	—	
 	 	—	
 	 	68,765	
 	 	68,765	
 	 	 	 	 	 	 	
Other comprehensive loss	—	
 	 	—	
 	 	—	
 	 	—	
 	 	(37,562	)	 	—	
 	 	(37,562	)	 	 	 	 	 	 	
Stock-based compensation	57	
 	 	—	
 	 	—	
 	 	6,389	
 	 	—	
 	 	—	
 	 	6,389	
 	 	 	 	 	 	 	
Issuance of restricted shares, net of shares remitted	(14	)	 	—	
 	 	—	
 	 	(599	)	 	—	
 	 	—	
 	 	(599	)	 	 	 	 	 	 	
Issuance costs related to 2012 issuance of common stock	—	
 	 	—	
 	 	—	
 	 	(250	)	 	—	
 	 	—	
 	 	(250	)	 	 	 	 	 	 	
Exercise of stock options	61	
 	 	2	
 	 	—	
 	 	397	
 	 	—	
 	 	—	
 	 	399	
 	 	 	 	 	 	 	
Net tax benefit on exercise of stock-based awards	—	
 	 	—	
 	 	—	
 	 	1,579	
 	 	—	
 	 	—	
 	 	1,579	
 	 	 	 	 	 	 	
Employee stock purchase plan	123	
 	 	—	
 	 	—	
 	 	5,327	
 	 	—	
 	 	—	
 	 	5,327	
 	 	 	 	 	 	 	
Balance at September 30, 2013	60,612	
 	 	$	606	
 	 	$	(469	)	 	$	893,822	
 	 	$	12,070	
 	 	$	570,091	
 	 	$	1,476,120	

The accompanying notes are an integral part of these unaudited consolidated financial statements.

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CLEAN HARBORS, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(1) BASIS OF PRESENTATION

The accompanying consolidated interim financial statements are unaudited and include the accounts of Clean Harbors, Inc. and its subsidiaries (collectively, “Clean Harbors,” the “Company” or "we") and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) and, in the opinion of management, include all adjustments which are of a normal recurring nature, necessary for a fair presentation of the financial position, results of operations, and cash flows for the periods presented. The results for interim periods are not necessarily indicative of results for the entire year or any other interim periods. The financial statements presented herein should be read in connection with the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012.
    
During the first quarter of 2013, the Company adjusted its operating segments to integrate the business activities of Safety-Kleen, Inc. and its subsidiaries (collectively, “Safety-Kleen”) acquired in December 2012, and to incorporate other changes made in 2013 to the manner in which the Company manages its business, makes operating decisions and assesses its performance. Under the new structure, the Company's operations are managed in five reportable segments: Technical Services, Oil Re-refining and Recycling, SK Environmental Services, Industrial and Field Services, and Oil and Gas Field Services. The prior year segment information has been recast to conform to the current year presentation. See Note 17, “Segment Reporting.”
(2) SIGNIFICANT ACCOUNTING POLICIES
The Company's significant accounting policies are described in Note 2, "Significant Accounting Policies," in the Company's Annual Report on Form 10-K for the year ended December 31, 2012. On December 28, 2012, the Company acquired 100% of the outstanding common shares of Safety-Kleen. There have been no changes in these policies or their application, other than as described below related to certain policies applicable to Safety-Kleen. See Note 3, “Business Combinations.” No revenue, expense, income or loss of Safety-Kleen was included in the Company's consolidated statements of income for the year ended December 31, 2012 due to the immateriality of Safety-Kleen's operating results subsequent to December 28, 2012.
Safety-Kleen's operating results are included in the Company's unaudited consolidated statements of income for the three and nine months ended September 30, 2013, and reflect the application of certain significant accounting policies as described below:
Revenue Recognition and Deferred Revenue
S-K Environmental Services revenue is generated from providing parts cleaning services, containerized waste services, oil collection services and other complementary products and services.
Parts cleaning services generally consist of placing a specially designed parts washer at a customer's premises and then, on a recurring basis, delivering clean solvent or aqueous-based washing fluid, cleaning and servicing the parts washer and removing the used solvent or aqueous fluid. The Company also services customer-owned parts washers. Revenue from parts cleaning services is recognized over the service interval. Service intervals represent the actual amount of time between service visits to a particular parts cleaning customer. Average service intervals vary from seven to 14 weeks depending on several factors, such as customer accommodation, types of machines serviced and frequency of use.
Containerized waste services consist of profiling, collecting, transporting and recycling or disposing of a wide variety of hazardous and non-hazardous wastes. Revenue is recognized upon disposal. The Company tracks the amount of time it takes from collection of the customer's waste to delivery to the disposal outlet, which represents a deferral period of approximately two and one-half weeks.
Other complementary products and services include vacuum services, allied products and other environmental services. Revenue is recognized when products are delivered and services are performed.
Oil Re-refining and Recycling revenue is generated from re-refining used oil to produce high quality base and blended lubricating oils, and recycling used oil collected in excess of the Company's re-refining capacity into recycled fuel oil. The high quality base and blended lubricating oils are sold to third-party distributors, retailers, government agencies, fleets, railroads and industrial customers. The recycled fuel oil is sold to asphalt plants, industrial plants, blenders, pulp and paper companies, vacuum gas oil producers and marine diesel oil producers. Revenue is recognized upon delivery.

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Deferred Costs Relating to Deferred Revenue
Commissions and other incremental direct costs, primarily costs of materials and transportation expenses, relating to deferred revenue from the Company’s parts cleaning services, containerized waste services and vacuum services are capitalized and deferred. The deferred costs are included in current assets in the consolidated balance sheet and expensed when the related revenues are recognized.
Recent Accounting Pronouncements
In July 2013, the Financial Accounting Standards Board (“FASB”) issued ASU 2013-11 Income Taxes (Topic 740) - Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists.  This standard provides guidance regarding when an unrecognized tax benefit should be classified as a reduction to a deferred tax asset or when it should be classified as a liability in the consolidated balance sheet. The guidance is effective for the Company on January 1, 2014. Management does not expect the adoption of this standard to have a significant impact on the Company's consolidated balance sheets.
In February 2013, the FASB issued ASU 2013-02 Comprehensive Income (Topic 220) - Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income . The new guidance requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income (“AOCI”) by component. Entities are required to present, either on the face of the income statement where net income is presented or in the notes, significant amounts reclassified out of AOCI by respective line items of net income if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required to be reclassified in their entirety to net income, entities are required to cross-reference the disclosures required under U.S. GAAP that provide additional detail about those amounts. This guidance is effective prospectively for annual and interim reporting periods beginning after December 31, 2012. The Company adopted the standard on January 1, 2013. The amounts required to be disclosed under this guidance are disclosed in Note 14, “Accumulated Other Comprehensive Income.”
Reclassifications
The Company's revenues and cost of revenues in the consolidated statements of income for the three and nine months ended September 30, 2012 and the changes in assets and liabilities, net of acquisitions in the consolidated statements of cash flows for the nine months ended September 30, 2012 have been reclassified to conform to the current year presentation.
(3) BUSINESS COMBINATIONS
Evergreen Oil, Inc.
On September 13, 2013, Safety-Kleen, Inc. acquired 100% of the outstanding common shares of Evergreen Oil, Inc. (“Evergreen”) for approximately $57.0 million. The purchase price consisted of an all-cash purchase price of $60.5 million, less a $3.5 million adjustment for the amount by which the estimated net working capital (as defined in the stock purchase agreement) of Evergreen on the closing date was less than $1.0 million. The purchase price is subject to adjustment upon finalization of Evergreen’s net working capital balance as of the closing date. Goodwill of $2.8 million and $0.4 million has been recorded on a preliminary basis in the Oil Re-refining and Recycling and SK Environmental Services segments, respectively, and will not be deductible for tax purposes. Evergreen, headquartered in Irvine, California, specializes in the recovery and re-refining of used oil and is currently the second-largest collector of used oil in California. Evergreen owns and operates one of the only oil re-refining operations in the western United States and also offers other ancillary environmental services, including parts cleaning and containerized waste services, vacuum services and hazardous waste management services.
The Company believes Evergreen is a good strategic fit, enabling Clean Harbors to further (i) penetrate the small quantity waste generator market, (ii) expand its oil re-refining, oil recycling and waste treatment capabilities, (iii) increase the waste volumes into its existing waste disposal treatment network, (v) enhance its commitment to sustainability, (vi) leverage the combined sales forces to maximize cross-selling opportunities, and (viii) leverage operating efficiencies through the combined company.
Safety-Kleen, Inc.
On December 28, 2012, the Company acquired 100% of the outstanding common shares of Safety-Kleen for approximately $1.3 billion. The purchase price consisted of an all-cash purchase price of $1.25 billion, plus a $13.3 million adjustment for the amount by which the net working capital (excluding cash) of Safety-Kleen on the closing date exceeded $50.0 million. The Company incurred acquisition-related costs of approximately $0.9 million and $2.2 million in connection with the transaction which are included in selling, general and administrative expenses in the consolidated statements of income for the three and nine months

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ended September 30, 2013, respectively. The Company financed the purchase through a combination of approximately $300.0 million of existing cash, $369.3 million in net proceeds from the Company's public offering of 6.9 million shares of Clean Harbors common stock, and approximately $589.0 million in net proceeds from the Company's private debt offering of $600.0 million of 5.125% senior unsecured notes due 2021. Safety-Kleen, headquartered in Richardson, Texas, is the largest re-refiner and recycler of used oil in North America and a leading provider of parts cleaning and environmental services to commercial, industrial and automotive customers. In conjunction with the transaction, Safety-Kleen, Inc. and its subsidiaries became wholly-owned subsidiaries of Clean Harbors.
The fair value of all the acquired identifiable assets and liabilities summarized below is provisional pending finalization of the Company's acquisition accounting. Measurement period adjustments reflect new information obtained about facts and circumstances that existed as of the acquisition date. The Company believes that such preliminary allocations provide a reasonable basis for estimating the fair values of assets acquired and liabilities assumed, but the Company is waiting for additional information necessary to finalize fair value. The Company expects to finalize the valuation and complete the purchase price allocation as soon as practicable but no later than one year from the acquisition date. As the measurement period adjustments are not material to the consolidated balance sheets as of December 31, 2012 nor are they material to the amounts reported in the consolidated statements of income and consolidated statement of cash flows for the three and nine months ended September 30, 2013, the adjustments have been recorded on a prospective basis. Final determination of the fair value may result in further adjustments to the values presented below. The following table summarizes the recognized amounts of identifiable assets acquired and liabilities assumed (in thousands).

 	Preliminary Allocations	 	 Year-to-Date Measurement Period Adjustments	 	Current Estimate of Allocations	
Inventories and supplies	$	102,339	
 	 	$	5,037	
 	 	$	107,376	
 	
Other current assets (i)	152,245	
 	 	319	
 	 	152,564	
 	
Property, plant and equipment	514,712	
 	 	779	
 	 	515,491	
 	
Permits and other intangibles	421,400	
 	 	4,577	
 	 	425,977	
 	
Other assets	4,985	
 	 	(1,111	)	 	3,874	
 	
Current liabilities	(192,652	)	 	(5,081	)	 	(197,733	)	
Closure and post-closure liabilities, less current portion	(15,774	)	 	8,221	
 	 	(7,553	)	
Remedial liabilities, less current portion	(38,370	)	 	(10,577	)	 	(48,947	)	
Deferred taxes, unrecognized tax benefits and other long-term liabilities	(128,375	)	 	7,178	
 	 	(121,197	)	
Total identifiable net assets	820,510	
 	 	9,342	
 	 	829,852	
 	
Goodwill (ii)	436,749	
 	 	(3,317	)	 	433,432	
 	
Total	$	1,257,259	
 	 	$	6,025	
 	 	$	1,263,284	
 	
_______________________
 	 	
(i)	The fair value of the assets acquired includes customer receivables with a preliminary aggregate fair value of $133.7 million. Combined gross amounts due were $143.7 million.	
 	 	
(ii)	Goodwill represents the excess of the fair value of the net assets acquired over the purchase price. Goodwill of $214.1 million, $147.3 million, $69.9 million, and $2.1 million has been recorded on a preliminary basis in the Oil Re-refining and Recycling, SK Environmental Services, Industrial and Field Services and Technical Services segments, respectively. None of the goodwill related to this acquisition will be deductible for tax purposes.    	
The Company has determined that the separate disclosure of Safety-Kleen's revenues and earnings is impracticable for the three and nine months ended September 30, 2013 due to the integration of Safety-Kleen's operations into the Company upon acquisition.

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The following unaudited pro forma combined summary financial information presented below gives effect to the following transactions as if they had occurred as of January 1, 2011, and assumes that there were no material, non-recurring pro forma adjustments directly attributable to: (i) the acquisition of Safety-Kleen, (ii) the sale of 6.9 million shares of the Company's common stock, (iii) the issuance of $600.0 million aggregate principal amount of 5.125% senior unsecured notes due 2021, and (iv) the payment of related fees and expenses (in thousands):

 	For the Three Months Ended	 	For the Nine Months Ended	
 	September 30, 2012	 	September 30, 2012	
Pro forma combined revenues	$	851,376	
 	 	$	2,691,025	
 	
Pro forma combined net income	$	13,480	
 	 	$	90,546	
 	
This pro forma financial information is not necessarily indicative of the Company's consolidated operating results that would have been reported had the transactions been completed as described herein, nor is such information necessarily indicative of the Company's consolidated results for any future period.
Other 2012 Acquisitions
The Company acquired (i) during the second quarter of 2012, all of the outstanding stock of a privately owned Canadian company which provides workforce accommodations, camp catering and fresh food services; (ii) during the third quarter of 2012, certain assets of a privately owned U.S. company that is engaged in the business of materials handling services that includes a variety of support equipment to provide customers with a sole source for any dredging and dewatering project; and (iii) during the fourth quarter of 2012, the shares and assets of certain subsidiaries of a privately owned company that is engaged in the business of providing catalyst loading and unloading services in the United States and Canada. The combined purchase price for these acquisitions was approximately $108.9 million, including the assumption and payment of debt of $7.7 million and post-closing adjustments of $2.1 million based upon finalization of the working capital balances as of the closing date. Management has determined the purchase price allocations based on estimates of the fair values of all tangible and intangible assets acquired and liabilities assumed. The Company believes that such information provides a reasonable basis for estimating the fair values of assets acquired and liabilities assumed.
As of September 30, 2013, the Company had finalized the acquisition accounting of the identified acquired assets and liabilities for the other 2012 acquisitions, the impact of which was not material to the financial statements. The following table summarizes the recognized amounts of identifiable assets acquired and liabilities assumed (in thousands).

 	Preliminary Allocations	 	Year-to-Date Measurement Period Adjustments	 	Final Allocations	
Current assets (i)	$	20,270	
 	 	$	117	
 	 	$	20,387	
 	
Property, plant and equipment	51,901	
 	 	(8	)	 	51,893	
 	
Customer relationships and other intangibles	21,770	
 	 	(1	)	 	21,769	
 	
Other assets	53	
 	 	4	
 	 	57	
 	
Current liabilities	(5,277	)	 	(22	)	 	(5,299	)	
Other liabilities	(5,133	)	 	(79	)	 	(5,212	)	
Total identifiable net assets	83,584	
 	 	11	
 	 	83,595	
 	
Goodwill (ii)	23,956	
 	 	1,308	
 	 	25,264	
 	
Total	$	107,540	
 	 	$	1,319	
 	 	$	108,859	
 	
______________________
 	 	
(i)	The fair value of the financial assets acquired included customer receivables with an aggregate fair value of $13.2 million. Combined gross amounts due were $13.5 million.  	
 	 	
(ii)	Goodwill represents the excess of the fair value of the net assets acquired over the purchase price attributed to expected operating and cross selling synergies. The goodwill has been assigned to the Industrial and Field Services segment and will not be deductible for tax purposes.	
The following unaudited pro forma combined financial data presents information as if the 2012 acquisitions had been acquired as of January 1, 2011 and assumes that there were no material, non-recurring pro forma adjustments directly attributable to

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those acquisitions. The pro forma financial information does not necessarily reflect the actual results that would have been reported had the Company and those three acquisitions been combined during the periods presented, nor is it necessarily indicative of the future results of operations of the combined companies (in thousands).

 	For the Three Months Ended	 	For the Nine Months Ended	
 	September 30, 2012	 	September 30, 2012	
Pro forma combined revenues	$	545,393	
 	 	$	1,698,246	
 	
Pro forma combined net income	$	11,982	
 	 	$	72,351	
 	
Acquisition-related costs of $0.2 million for the other 2012 acquisitions were included in selling, general and administrative expenses in the Company's consolidated statements of income for the nine months ended September 30, 2013.
(4) FAIR VALUE MEASUREMENTS
The Company’s financial instruments consist of cash and cash equivalents, marketable securities, receivables, trade payables, auction rate securities, derivative financial instruments and long-term debt. The estimated fair value of cash equivalents, receivables, and trade payables approximate their carrying value due to the short maturity of these instruments and are deemed to be Level 2 in the fair value hierarchy. The fair value of the Company’s unsecured senior notes (due 2020 and 2021) at September 30, 2013 were $780.9 million and $573.1 million, respectively, and at December 31, 2012 were $816.0 million and $623.5 million, respectively, based on quoted market prices or available market data. The senior unsecured notes fair value is Level 2 in the fair value hierarchy.
The Company's assets measured at fair value on a recurring basis at September 30, 2013 and December 31, 2012 were as follows (in thousands):

September 30, 2013	
 	 	Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)	 	Significant Other
Observable
Inputs
(Level 2)	 	Significant
Unobservable
Inputs
(Level 3)	 	Balance at September 30, 2013	
Assets:	 	 	 	 	 	 	 	 	
Auction rate securities (i)	 	$	—	
 	 	$	—	
 	 	$	4,352	
 	 	$	4,352	
 	
Derivative instruments (ii)	 	$	—	
 	 	$	60	
 	 	$	—	
 	 	$	60	
 	
Marketable securities (iii)	 	$	11,787	
 	 	$	—	
 	 	$	—	
 	 	$	11,787	
 	
Liabilities:	 	 	 	 	 	 	 	 	
Derivative instruments (ii)	 	$	—	
 	 	$	239	
 	 	$	—	
 	 	$	239	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
December 31, 2012	
 	 	Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)	 	Significant Other
Observable
Inputs
(Level 2)	 	Significant
Unobservable
Inputs
(Level 3)	 	Balance at
December 31,
2012	
Assets:	 	 	 	 	 	 	 	 	
Auction rate securities (i)	 	$	—	
 	 	$	—	
 	 	$	4,354	
 	 	$	4,354	
 	
Derivative instruments (ii)	 	$	—	
 	 	$	165	
 	 	$	—	
 	 	$	165	
 	
Marketable securities (iii)	 	$	11,778	
 	 	$	—	
 	 	$	—	
 	 	$	11,778	
 	
Liabilities:	 	 	 	 	 	 	 	 	
Derivative instruments (ii)	 	$	—	
 	 	$	1,242	
 	 	$	—	
 	 	$	1,242	
 	
________________________________________________
 	 	
(i)	The auction rate securities are classified as available-for-sale and the fair value of these securities was estimated utilizing a probability discounted cash flow analysis. As of September 30, 2013, all of the Company's auction rate securities continue to have AAA underlying ratings. The Company attributes the $0.3 million decline in the fair value of the securities from the original cost basis to external liquidity issues rather than credit issues. The	

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Company assessed the decline in value to be temporary because it does not intend to sell and it is more likely than not that the Company will not have to sell the securities before their maturity. During the nine months ended September 30, 2013 and 2012, the Company recorded an unrealized pre-tax loss of less than $0.1 million and a pre-tax gain of $0.1 million, respectively, on its auction rate securities. 
 	 	
(ii)	The fair value of derivatives is recorded based on the present value of cash flows using a crude oil forward rate curve.	
 	 	
(iii)	The fair value of marketable securities is recorded based on quoted market prices and changes in fair value were included in other comprehensive income.	
The following table presents the changes in the Company’s auction rate securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and nine months ended September 30, 2013 and 2012 (in thousands):

 	 	Three Months Ended	 	Nine Months Ended	
 	 	September 30,	 	September 30,	
 	 	2013	 	2012	 	2013	 	2012	
Balance at beginning of period	 	$	4,352	
 	 	$	4,326	
 	 	$	4,354	
 	 	$	4,245	
 	
Unrealized (loss) gain included in other comprehensive income	 	—	
 	 	—	
 	 	(2	)	 	81	
 	
Balance at September 30,	 	$	4,352	
 	 	$	4,326	
 	 	$	4,352	
 	 	$	4,326	
 	
Derivative Financial Instruments
The Company acquired several commodity derivatives with the Safety-Kleen acquisition on December 28, 2012. The Company uses commodity derivatives to manage against significant fluctuations in oil and oil derivative commodity prices and indices, specifically the ICIS-LOR rate and 6-oil index. All commodity derivatives are comprised of cashless collar contracts related to crude oil prices, pursuant to which the Company sells a call to a bank and then purchases a put from the same bank. The derivative instruments are not designated as hedges and expire in 2013 and 2014. The following table presents the fair value for those assets and liabilities measured at fair value as of September 30, 2013 (fair value amounts in thousands):

Financial Institution	Trade Date	 	Start Date	 	End Date	 	Barrels of oil per Month	 	Commodity	 	Floor	 	Cap	 	Upfront Costs	 	Fair Value as of September 30, 2013	
Bank of America	2/7/2013	 	4/1/2014	 	4/30/2014	 	148,810	
 	 	Brent	 	$	75.00	
 	 	$	134.70	
 	 	—	
 	 	$	24	
 	
Bank of America	4/2/2013	 	6/1/2014	 	6/30/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	130.00	
 	 	—	
 	 	21	
 	
Bank of America	9/11/2013	 	11/1/2014	 	11/28/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	124.00	
 	 	—	
 	 	15	
 	
Total derivative instrument asset	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	$	60	

JP Morgan	9/11/2012	 	11/1/2013	 	11/30/2013	 	148,810	
 	 	Brent	 	$	75.00	
 	 	$	137.50	
 	 	—	
 	 	$	3	
 	
JP Morgan	12/7/2012	 	2/1/2014	 	2/28/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	124.70	
 	 	—	
 	 	33	
 	
JP Morgan	3/7/2013	 	5/1/2014	 	5/31/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	125.75	
 	 	—	
 	 	10	
 	
JP Morgan	5/6/2013	 	7/1/2014	 	7/31/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	122.00	
 	 	—	
 	 	37	
 	
JP Morgan	7/8/2013	 	9/1/2014	 	9/30/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	120.75	
 	 	—	
 	 	39	
 	
Bank of America	8/3/2012	 	10/1/2013	 	10/31/2013	 	148,810	
 	 	Brent	 	75.00	
 	 	130.00	
 	 	—	
 	 	—	
 	
Bank of America	10/4/2012	 	12/1/2013	 	12/31/2013	 	148,810	
 	 	Brent	 	75.00	
 	 	127.50	
 	 	—	
 	 	14	
 	
Bank of America	11/9/2012	 	1/1/2014	 	1/31/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	130.00	
 	 	—	
 	 	13	
 	
Bank of America	1/8/2013	 	3/1/2014	 	3/31/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	129.00	
 	 	—	
 	 	10	
 	
Bank of America	6/10/2013	 	8/1/2014	 	8/29/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	120.65	
 	 	—	
 	 	66	
 	
Bank of America	8/13/2013	 	10/1/2014	 	10/31/2014	 	148,810	
 	 	Brent	 	75.00	
 	 	122.60	
 	 	—	
 	 	14	
 	
Total derivative instrument liability	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	$	239	

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Total derivative instrument asset and total derivative instrument liability as noted in the table above are included in the consolidated balance sheets as a component of prepaid expenses and other current assets and accrued expenses, respectively.
(5) INVENTORIES AND SUPPLIES
Inventories and supplies consisted of the following (in thousands):

 	September 30,	 	December 31,	
 	2013	 	2012	
Oil and oil products	$	63,450	
 	 	$	77,735	
 	
Supplies and drums	61,888	
 	 	63,540	
 	
Solvent and solutions	11,508	
 	 	9,398	
 	
Other	18,455	
 	 	20,768	
 	
Total inventories and supplies	$	155,301	
 	 	$	171,441	
 	
(6) PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consisted of the following (in thousands):

 	September 30,	 	December 31,	
 	2013	 	2012	
Land	$	100,133	
 	 	$	106,037	
 	
Asset retirement costs (non-landfill)	10,748	
 	 	10,450	
 	
Landfill assets	93,104	
 	 	77,952	
 	
Buildings and improvements	324,646	
 	 	329,617	
 	
Camp equipment	135,377	
 	 	135,827	
 	
Vehicles	419,581	
 	 	385,172	
 	
Equipment	1,164,838	
 	 	1,061,090	
 	
Furniture and fixtures	5,244	
 	 	6,757	
 	
Construction in progress	129,385	
 	 	31,780	
 	
 	2,383,056	
 	 	2,144,682	
 	
Less - accumulated depreciation and amortization	767,629	
 	 	612,919	
 	
Total property, plant and equipment, net	$	1,615,427	
 	 	$	1,531,763	
 	
(7) GOODWILL AND OTHER INTANGIBLE ASSETS
The changes to goodwill for the nine months ended September 30, 2013 were as follows (in thousands):

 	 	2013	
Balance at January 1, 2013	 	$	593,771	
 	
Acquired from acquisitions	 	3,179	
 	
Decrease from adjustments during the measurement period related to acquisitions	 	(2,009	)	
Foreign currency translation	 	(4,789	)	
Balance at September 30, 2013	 	$	590,152	
 	
The goodwill related to the acquisition of Safety-Kleen in 2012 and Evergreen in 2013 includes estimates that are subject to change based upon final fair value determinations.     
The Company assesses goodwill for impairment at least on an annual basis as of December 31, or when events or changes in the business environment indicate that the carrying value of the reporting unit may exceed its fair value, by comparing the fair value of each reporting unit to its carrying value, including goodwill.

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Below is a summary of amortizable other intangible assets (in thousands):

 	 	September 30, 2013	 	December 31, 2012	
 	 	Cost	 	Accumulated
Amortization	 	Net	 	Weighted
Average
Remaining Amortization
Period
(in years)	 	Cost	 	Accumulated
Amortization	 	Net	 	Weighted
Average
Remaining Amortization
Period
(in years)	
Permits	 	$	157,578	
 	 	$	49,818	
 	 	$	107,760	
 	 	18.8	 	$	148,661	
 	 	$	46,282	
 	 	$	102,379	
 	 	21.8	
Customer and supplier relationships	 	377,334	
 	 	46,372	
 	 	330,962	
 	 	12.5	 	372,751	
 	 	27,739	
 	 	345,012	
 	 	13.2	
Other intangible assets	 	28,097	
 	 	14,548	
 	 	13,549	
 	 	3.5	 	22,027	
 	 	12,121	
 	 	9,906	
 	 	3.6	
Total amortizable permits and other intangible assets	 	563,009	
 	 	110,738	
 	 	452,271	
 	 	12.5	 	543,439	
 	 	86,142	
 	 	457,297	
 	 	13.6	
Trademarks and trade names	 	115,505	
 	 	—	
 	 	115,505	
 	 	Indefinite	 	115,520	
 	 	—	
 	 	115,520	
 	 	Indefinite	
Total permits and other intangible assets	 	$	678,514	
 	 	$	110,738	
 	 	$	567,776	
 	 	
 	 	$	658,959	
 	 	$	86,142	
 	 	$	572,817	

Below is the expected future amortization of the net carrying amount of finite lived intangible assets at September 30, 2013 (in thousands):

Years Ending December 31,	 	Expected
Amortization	
2013 (three months)	 	$	10,816	
 	
2014	 	42,308	
 	
2015	 	40,704	
 	
2016	 	39,210	
 	
2017	 	36,528	
 	
Thereafter	 	282,705	
 	
 	 	$	452,271	
 	
(8) ACCRUED EXPENSES
Accrued expenses consisted of the following (in thousands):

 	 	September 30,
2013	 	December 31,
2012	
Insurance	 	$	54,105	
 	 	$	48,243	
 	
Interest	 	17,900	
 	 	20,061	
 	
Accrued disposal costs	 	1,498	
 	 	1,835	
 	
Accrued compensation and benefits	 	71,030	
 	 	70,250	
 	
Income, real estate, sales and other taxes	 	54,403	
 	 	35,640	
 	
Other	 	57,877	
 	 	56,400	
 	
Total accrued expenses	 	$	256,813	
 	 	$	232,429	

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(9) CLOSURE AND POST-CLOSURE LIABILITIES
The changes to closure and post-closure liabilities (also referred to as “asset retirement obligations”) for the nine months ended September 30, 2013 were as follows (in thousands):

 	 	Landfill
Retirement
Liability	 	Non-Landfill
Retirement
Liability	 	Total	
Balance at January 1, 2013	 	$	26,658	
 	 	$	27,590	
 	 	$	54,248	
 	
Liabilities assumed in acquisitions	 	—	
 	 	659	
 	 	659	
 	
Adjustments during the measurement period related to acquisitions	 	—	
 	 	(10,201	)	 	(10,201	)	
New asset retirement obligations	 	3,321	
 	 	—	
 	 	3,321	
 	
Accretion	 	2,255	
 	 	1,281	
 	 	3,536	
 	
Changes in estimates recorded to statement of income	 	(398	)	 	99	
 	 	(299	)	
Changes in estimates recorded to balance sheet	 	299	
 	 	—	
 	 	299	
 	
Expenditures	 	(3,527	)	 	(310	)	 	(3,837	)	
Currency translation and other	 	(152	)	 	(80	)	 	(232	)	
Balance at September 30, 2013	 	$	28,456	
 	 	$	19,038	
 	 	$	47,494	
 	
All of the landfill facilities included in the above were active as of September 30, 2013. New asset retirement obligations incurred during the first nine months of 2013 were discounted at the credit-adjusted risk-free rate of 6.60%. There were no significant charges (benefits) in 2013 resulting from changes in estimates for closure and post-closure liabilities.
(10) REMEDIAL LIABILITIES 
The changes to remedial liabilities for the nine months ended September 30, 2013 were as follows (in thousands):

 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	Remedial
Liabilities for
Landfill Sites	 	Remedial
Liabilities for
Inactive Sites	 	Remedial
Liabilities
(Including
Superfund) for
Non-Landfill
Operations	 	Total	
Balance at January 1, 2013	 	$	5,829	
 	 	$	71,079	
 	 	$	90,312	
 	 	$	167,220	
 	
Liabilities assumed in acquisitions	 	—	
 	 	—	
 	 	2,384	
 	 	$	2,384	
 	
Adjustments during the measurement period related to acquisitions	 	—	
 	 	8,855	
 	 	3,726	
 	 	12,581	
 	
Accretion	 	210	
 	 	2,505	
 	 	2,377	
 	 	5,092	
 	
Changes in estimates recorded to statement of income	 	(62	)	 	(2,341	)	 	285	
 	 	(2,118	)	
Expenditures	 	(67	)	 	(6,307	)	 	(5,717	)	 	(12,091	)	
Currency translation and other	 	(108	)	 	(54	)	 	(815	)	 	(977	)	
Balance at September 30, 2013	 	$	5,802	
 	 	$	73,737	
 	 	$	92,552	
 	 	$	172,091	
 	
The benefit resulting from changes in remedial liability estimates for inactive sites was primarily due to reevaluating and removing certain compensation costs related to one site as a result of recently receiving site closure approval.

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(11) FINANCING ARRANGEMENTS 
The following table is a summary of the Company’s financing arrangements (in thousands):

 	 	 	 	 	 	 	 	 	
 	 	September 30,
2013	 	December 31,
2012	
Senior unsecured notes, at 5.25%, due August 1, 2020	 	$	800,000	
 	 	$	800,000	
 	
Senior unsecured notes, at 5.125%, due June 1, 2021	 	600,000	
 	 	600,000	
 	
Revolving credit facility, due January 17, 2018	 	—	
 	 	—	
 	
Long-term obligations	 	$	1,400,000	
 	 	$	1,400,000	

On January 17, 2013, the Company increased its revolving credit facility to provide for maximum borrowings of up to $400.0 million (with a $325.0 million sub-limit for letters of credit). At September 30, 2013, the revolving credit facility had no outstanding loans, $262.3 million available to borrow and $137.7 million of letters of credit outstanding.
The financing arrangements and principal terms of the Company's $800.0 million principal amount of 5.25% senior unsecured notes due 2020 ("2020 Notes") and $600.0 million principal amount of 5.125% senior unsecured notes due 2021 ("2021 Notes") which were outstanding at September 30, 2013, and the Company's amended $400.0 million revolving credit facility, are discussed further in Note 11, “Financing Arrangements,” in the Company's Annual Report on Form 10-K for the year ended December 31, 2012.
(12) INCOME TAXES 
The Company’s effective tax rate for the three and nine months ended September 30, 2013 was 34.7% and 34.5%, respectively, compared to 33.8% and 35.6% for the same periods in 2012.
As of September 30, 2013, the Company had recorded $3.9 million of liabilities for unrecognized tax benefits and $1.6 million of interest. As of December 31, 2012, the Company had recorded $3.5 million of liabilities for unrecognized tax benefits and $1.4 million of interest. 
Due to expiring statute of limitation periods, the Company believes that total unrecognized tax benefits will decrease by approximately $3.8 million within the next twelve months. The $3.8 million (which includes interest of $1.3 million) is related to various foreign and state tax laws and, if realized, will be recorded in earnings and therefore will impact the effective income tax rate.
In September 2013, the Internal Revenue Service released final Tangible Property Regulations (the “Final Regulations”). The Final Regulations provide guidance on applying Regulation Section 1.263(a) of the Internal Revenue Code (“IRC”) to amounts paid to acquire, produce or improve tangible property, as well as rules for materials and supplies (IRC Regulation Section 1.162). These regulations contain certain changes from the temporary and proposed tangible property regulations that were issued on December 23, 2011. The Final Regulations are generally effective for taxable years beginning on or after January 1, 2014. In addition, taxpayers are permitted to early adopt the Final Regulations for taxable years beginning on or after January 1, 2012. The Company does not expect the Final Regulations to have a material effect on its results of operations or cash flows. The Company is currently evaluating the impact on its consolidated balance sheets. 

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(13) EARNINGS PER SHARE     
The following are computations of basic and diluted earnings per share (in thousands except for per share amounts):

 	 	Three Months Ended	 	Nine Months Ended	
 	 	September 30,	 	September 30,	
 	 	2013	 	2012	 	2013	 	2012	
Numerator for basic and diluted earnings per share:	 	 	

 	 	 	
 	
Net income	 	$	35,361	
 	 	$	12,359	
 	 	$	68,765	
 	 	$	67,800	

Denominator:	 	 	

 	 	 	
 	
Basic shares outstanding	 	60,610	
 	 	53,374	
 	 	60,542	
 	 	53,303	
 	
Dilutive effect of equity-based compensation awards	 	150	
 	 	191	
 	 	150	
 	 	216	
 	
Dilutive shares outstanding	 	60,760	
 	 	53,565	
 	 	60,692	
 	 	53,519	

Basic earnings per share:	 	$	0.58	
 	 	$	0.23	
 	 	$	1.14	
 	 	$	1.27	

 	 	 	

 	
Diluted earnings per share:	 	$	0.58	
 	 	$	0.23	
 	 	$	1.13	
 	 	$	1.27	
 	
For the three and nine months ended September 30, 2013, the dilutive effect of all then outstanding options, restricted stock and performance awards is included in the EPS calculations above except for 173,000 outstanding performance stock awards for which the performance criteria were not attained at that time. For the three and nine months ended September 30, 2012, the EPS calculations above include the dilutive effects of all then outstanding options, restricted stock, and performance awards except for 66,000 outstanding performance stock awards for which the performance criteria were not attained at that time.
(14) ACCUMULATED OTHER COMPREHENSIVE INCOME
Other comprehensive income (loss) includes translation adjustments of foreign currency financial statements, unrealized gains (losses) on available-for-sale securities and changes in unfunded pension liabilities. The components of other comprehensive income (loss) and related tax effects for the three and nine months ended September 30, 2013 and 2012 were as follows (in thousands):

 	 	For the Three Months Ended	 	For the Three Months Ended	
 	 	September 30, 2013	 	September 30, 2012	
 	 	Gross	 	Tax Effect	 	Net of Tax	 	Gross	 	Tax Effect	 	Net of Tax	
Foreign currency translation	 	$	20,731	
 	 	$	—	
 	 	$	20,731	
 	 	$	29,086	
 	 	$	—	
 	 	$	29,086	
 	
Unrealized gain (loss) on available-for-sale securities	 	1,227	
 	 	(153	)	 	1,074	
 	 	1,040	
 	 	(146	)	 	894	
 	
Other comprehensive income (loss)	 	$	21,958	
 	 	$	(153	)	 	$	21,805	
 	 	$	30,126	
 	 	$	(146	)	 	$	29,980	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	For the Nine Months Ended	 	For the Nine Months Ended	
 	 	September 30, 2013	 	September 30, 2012	
 	 	Gross	 	Tax Effect	 	Net of Tax	 	Gross	 	Tax Effect	 	Net of Tax	
Foreign currency translation	 	$	(37,921	)	 	$	—	
 	 	$	(37,921	)	 	$	27,393	
 	 	$	—	
 	 	$	27,393	
 	
Unrealized gain (loss) on available-for-sale securities	 	420	
 	 	(61	)	 	359	
 	 	373	
 	 	(63	)	 	310	
 	
Other comprehensive income (loss)	 	$	(37,501	)	 	$	(61	)	 	$	(37,562	)	 	$	27,766	
 	 	$	(63	)	 	$	27,703	

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The components of accumulated other comprehensive income, net of tax, were as follows (in thousands):

 	Foreign Currency Translation	 	Unrealized Gain (Loss) on Available-For-Sale Securities	 	Unfunded Pension Liability	 	Total	
Balance at January 1, 2013	$	50,627	
 	 	$	660	
 	 	$	(1,655	)	 	$	49,632	
 	
Other comprehensive loss, net of tax	(37,921	)	 	359	
 	 	—	
 	 	(37,562	)	
Balance at September 30, 2013	$	12,706	
 	 	$	1,019	
 	 	$	(1,655	)	 	$	12,070	
 	
There were no reclassifications to net income from accumulated other comprehensive income during the three and nine months ended September 30, 2013.
(15) STOCK-BASED COMPENSATION
The following table summarizes the total number and type of awards granted during the three and nine months ended September 30, 2013, as well as the related weighted-average grant-date fair values:

 	 	Three Months Ended	 	Nine Months Ended	
 	 	September 30, 2013	 	September 30, 2013	
 	 	Shares	 	Weighted Average
Grant-Date
Fair Value	 	Shares	 	Weighted Average
Grant-Date
Fair Value	
Restricted stock awards	 	27,890	
 	 	$	57.88	
 	 	287,882	
 	 	$	55.21	
 	
Performance stock awards	 	1,468	
 	 	$	55.29	
 	 	114,453	
 	 	$	54.27	
 	
Total awards	 	29,358	
 	 	 	
 	 	402,335	

(16) COMMITMENTS AND CONTINGENCIES 
Legal and Administrative Proceedings 
The Company’s waste management services are regulated by federal, state, provincial and local laws enacted to regulate discharge of materials into the environment, remediation of contaminated soil and groundwater or otherwise protect the environment. This ongoing regulation results in the Company frequently becoming a party to legal or administrative proceedings involving all levels of governmental authorities and other interested parties. The issues involved in such proceedings generally relate to applications for permits and licenses by the Company and conformity with legal requirements, alleged violations of existing permits and licenses, or alleged responsibility arising under federal or state Superfund laws to remediate contamination at properties owned either by the Company or by other parties (“third party sites”) to which either the Company or prior owners of certain of the Company’s facilities shipped wastes. 
At September 30, 2013 and December 31, 2012, the Company had recorded reserves of $41.8 million and $38.6 million, respectively, in the Company's financial statements for actual or probable liabilities related to the legal and administrative proceedings in which the Company was then involved, the principal of which are described below. At September 30, 2013 and December 31, 2012, the Company also believed that it was reasonably possible that the amount of these potential liabilities could be as much as $3.4 million and $3.5 million more, respectively. The Company periodically adjusts the aggregate amount of these reserves when these actual or probable liabilities are paid or otherwise discharged, new claims arise, or additional relevant information about existing or probable claims becomes available. As of September 30, 2013, the $41.8 million of reserves consisted of (i) $35.1 million related to pending legal or administrative proceedings, including Superfund liabilities, which were included in remedial liabilities on the consolidated balance sheets and (ii) $6.7 million primarily related to federal and state enforcement actions, which were included in accrued expenses on the consolidated balance sheets.
As of September 30, 2013, the principal legal and administrative proceedings in which the Company was involved, or which had been terminated during 2013, were as follows:
Ville Mercier.    In September 2002, the Company acquired the stock of a subsidiary (the "Mercier Subsidiary") which owns a hazardous waste incinerator in Ville Mercier, Quebec (the "Mercier Facility"). The property adjacent to the Mercier Facility, which is also owned by the Mercier Subsidiary, is now contaminated as a result of actions dating back to 1968, when the Government of Quebec issued to a company unrelated to the Mercier Subsidiary two permits to dump organic liquids into

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lagoons on the property. By 1972, groundwater contamination had been identified, and the Quebec government provided an alternate water supply to the municipality of Ville Mercier.
In 1999, Ville Mercier and three neighboring municipalities filed separate legal proceedings against the Mercier Subsidiary and the Government of Quebec. The lawsuits assert that the defendants are jointly and severally responsible for the contamination of groundwater in the region, which they claim caused each municipality to incur additional costs to supply drinking water for their citizens since the 1970's and early 1980's. The four municipalities claim a Canadian dollar ("CDN") total of $1.6 million as damages for additional costs to obtain drinking water supplies and seek an injunctive order to obligate the defendants to remediate the groundwater in the region. The Quebec Government also sued the Mercier Subsidiary to recover approximately $17.4 million (CDN) of alleged past costs for constructing and operating a treatment system and providing alternative drinking water supplies.
On September 26, 2007, the Quebec Minister of Sustainable Development, Environment and Parks issued a Notice pursuant to Section 115.1 of the Environment Quality Act, superseding Notices issued in 1992, which are the subject of the pending litigation. The more recent Notice notifies the Mercier Subsidiary that, if the Mercier Subsidiary does not take certain remedial measures at the site, the Minister intends to undertake those measures at the site and claim direct and indirect costs related to such measures. The Mercier Subsidiary continues to assert that it has no responsibility for the groundwater contamination in the region and will contest any action by the Ministry to impose costs for remedial measures on the Mercier Subsidiary. The Company also continues to pursue settlement options. At September 30, 2013 and December 31, 2012, the Company had accrued $13.9 million and $14.2 million, respectively, for remedial liabilities relating to the Ville Mercier legal proceedings.
Safety-Kleen Legal Proceedings. On December 28, 2012, the Company acquired Safety-Kleen and thereby became subject to the legal proceedings in which Safety-Kleen was a party on that date. In addition to certain Superfund proceedings in which Safety-Keen has been named as a potentially responsible party as described below under “Superfund Proceedings,” the principal such legal proceedings involving Safety-Kleen which were outstanding as of September 30, 2013 were as follows:
Product Liability Cases - Safety-Kleen is named as a defendant in various lawsuits that are currently pending in various courts and jurisdictions throughout the United States, including approximately 62 proceedings (excluding cases which have been settled but not formally dismissed) as of September 30, 2013, wherein persons claim personal injury resulting from the use of Safety-Kleen's parts cleaning equipment or cleaning products. These proceedings typically involve allegations that the solvent used in Safety-Kleen's parts cleaning equipment contains contaminants and/or that Safety-Kleen's recycling process does not effectively remove the contaminants that become entrained in the solvent during their use. In addition, certain claimants assert that Safety-Kleen failed to warn adequately the product user of potential risks, including an historic failure to warn that solvent contains trace amounts of toxic or hazardous substances such as benzene. Safety-Kleen maintains insurance that it believes will provide coverage for these claims (over amounts accrued for self-insured retentions and deductibles in certain limited cases), except for punitive damages to the extent not insurable under state law or excluded from insurance coverage. Safety-Kleen believes that these claims lack merit and has historically vigorously defended, and intends to continue to vigorously defend, itself and the safety of its products against all of these claims. Such matters are subject to many uncertainties and outcomes are not predictable with assurance. Consequently, Safety-Kleen is unable to ascertain the ultimate aggregate amount of monetary liability or financial impact with respect to these matters as of September 30, 2013. From December 31, 2012 to September 30, 2013, 26 product liability claims were settled or dismissed. Due to the nature of these claims and the related insurance, Safety-Kleen did not incur any expense as Safety-Kleen's insurance provided coverage in full for all such claims. Safety-Kleen may be named in similar, additional lawsuits in the future, including claims for which insurance coverage may not be available.    
Fee Class Action Claims.  In October 2010, two customers filed a complaint, individually and on behalf of all similarly situated customers in the State of Alabama, alleging that Safety-Kleen improperly assessed fuel surcharges and extended area service fees. Safety-Kleen disputes the basis of the claims on numerous grounds, including that Safety-Kleen has contracts with numerous customers authorizing the assessment of such fees and that in cases where no contract exists Safety-Kleen provides customers with a document at the time of service reflecting the assessment of the fee, followed by an invoice itemizing the fee. It is Safety-Kleen's position that it had the right to assess fuel surcharges, that the customers consented to the charges and that the surcharges were voluntarily paid by the customers when presented with an invoice. The lawsuit is still in its initial stages of discovery, with the focus being whether a class will be certified. The class certification-related fact discovery cutoff was September 4, 2013, and a hearing on class certification is now scheduled to be held in early to mid-2014. The plaintiff has filed a motion to extend the discovery cutoff and trial date, but the court has not ruled on these requests. In late June 2012, a nearly identical lawsuit was filed by the same law firm on behalf of a California-based customer. That lawsuit contends, under various state law theories, that Safety-Kleen impermissibly assessed fuel surcharges and late payment fees, and seeks certification of a class of California customers only. Safety-Kleen will assert the same defenses as in the Alabama litigation. In December 2012, a similar suit was filed by the same law firm on behalf of a Missouri-based customer which contends under various state law theories that Safety-Kleen impermissibly assessed fuel surcharges and seeks certification of a class of Missouri customers only.

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Safety-Kleen will assert the same defenses as in the Alabama and California cases. The Company is unable to ascertain the ultimate aggregate amount of monetary liability or financial impact with respect to these matters as of September 30, 2013, and no reserve has been recorded.
Superfund Proceedings
The Company has been notified that either the Company (which, since December 28, 2012, includes Safety-Kleen) or the prior owners of certain of the Company's facilities for which the Company may have certain indemnification obligations have been identified as potentially responsible parties ("PRPs") or potential PRPs in connection with 122 sites which are subject to or are proposed to become subject to proceedings under federal or state Superfund laws. Of the 122 sites, two involve facilities that are now owned by the Company and 120 involve third party sites to which either the Company or the prior owners shipped wastes. In connection with each site, the Company has estimated the extent, if any, to which it may be subject, either directly or as a result of any such indemnification provisions, for cleanup and remediation costs, related legal and consulting costs associated with PRP investigations, settlements, and related legal and administrative proceedings. The amount of such actual and potential liability is inherently difficult to estimate because of, among other relevant factors, uncertainties as to the legal liability (if any) of the Company or the prior owners of certain of the Company's facilities to contribute a portion of the cleanup costs, the assumptions that must be made in calculating the estimated cost and timing of remediation, the identification of other PRPs and their respective capability and obligation to contribute to remediation efforts, and the existence and legal standing of indemnification agreements (if any) with prior owners, which may either benefit the Company or subject the Company to potential indemnification obligations.
The Company's potential liability for cleanup costs at the two facilities now owned by the Company and at 35 (the "Listed Third Party Sites") of the 120 third party sites arose out of the Company's 2002 acquisition of substantially all of the assets (the "CSD assets") of the Chemical Services Division of Safety-Kleen Corp. As part of the purchase price for the CSD assets, the Company became liable as the owner of these two facilities and also agreed to indemnify the prior owners of the CSD assets against their share of certain cleanup costs for the Listed Third Party Sites payable to governmental entities under federal or state Superfund laws. Of the 35 Listed Third Party Sites, six are currently requiring expenditures on remediation, 13 are now settled, and 16 are not currently requiring expenditures on remediation. The status of the two facilities owned by the Company (the Wichita Property and the BR Facility) are further described below.
The 120 Superfund sites described above include 69 sites for which the Company had been notified it is a PRP or potential PRP prior to the Company's acquisition of Safety-Kleen on December 28, 2012, and an additional 50 sites at which Safety-Kleen had been notified it is a PRP or potential PRP prior to such acquisition. The total number of Superfund sites at which the Company had at September 30, 2013 potential liability and the total dollar amount of such estimated liability relating to those sites as described above have been increased to reflect the additional potential Superfund liabilities to which the Company became subject as a result of the Safety-Kleen acquisition. One of the third party sites (the Marine Shale site) is further described below.
Wichita Property.    The Company acquired in 2002 as part of the CSD assets a service center located in Wichita, Kansas (the "Wichita Property"). The Wichita Property is one of several properties located within the boundaries of a 1,400 acre state-designated Superfund site in an old industrial section of Wichita known as the North Industrial Corridor Site. Along with numerous other PRPs, the former owner executed a consent decree relating to such site with the U.S. Environmental Protection Agency (the "EPA"), and the Company is continuing its ongoing remediation program for the Wichita Property in accordance with that consent decree. The Company also acquired rights under an indemnification agreement between the former owner and an earlier owner of the Wichita Property, which the Company anticipates but cannot guarantee will be available to reimburse certain such cleanup costs.
BR Facility.    The Company acquired in 2002 as part of the CSD assets a former hazardous waste incinerator and landfill in Baton Rouge (the "BR Facility"), for which operations had been previously discontinued by the prior owner. In September 2007, the EPA issued a special notice letter to the Company related to the Devil's Swamp Lake Site ("Devil's Swamp") in East Baton Rouge Parish, Louisiana. Devil's Swamp includes a lake located downstream of an outfall ditch where wastewater and stormwater have been discharged, and Devil's Swamp is proposed to be included on the National Priorities List due to the presence of Contaminants of Concern ("COC") cited by the EPA. These COCs include substances of the kind found in wastewater and storm water discharged from the BR Facility in past operations. The EPA originally requested COC generators to submit a good faith offer to conduct a remedial investigation feasibility study directed towards the eventual remediation of the site. The Company is currently performing corrective actions at the BR Facility under an order issued by the Louisiana Department of Environmental Quality (the "LDEQ"), and has begun conducting the remedial investigation and feasibility study under an order issued by the EPA. The Company cannot presently estimate the potential additional liability for the Devil's Swamp cleanup until a final remedy is selected by the EPA.

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Marine Shale Site.    Prior to 1996, Marine Shale Processors, Inc. ("Marine Shale") operated a kiln in Amelia, Louisiana which incinerated waste producing a vitrified aggregate as a by-product. Marine Shale contended that its operation recycled waste into a useful product, i.e., vitrified aggregate, and therefore was exempt from regulation under the RCRA and permitting requirements as a hazardous waste incinerator under applicable federal and state environmental laws. The EPA contended that Marine Shale was a "sham-recycler" subject to the regulation and permitting requirements as a hazardous waste incinerator under the U.S. Resource Conservation and Recovery Act ("RCRA"), that its vitrified aggregate by-product was a hazardous waste, and that Marine Shale's continued operation without required permits was illegal. Litigation between the EPA and Marine Shale began in 1990 and continued until July 1996, when the U.S. Fifth Circuit Court of Appeals ordered Marine Shale to shut down its operations.
Certain of the former owners of the CSD assets were major customers of Marine Shale, but the Marine Shale site was not included as a Listed Third Party Site in connection with the Company's acquisition of the CSD assets and Clean Harbors was never a customer of Marine Shale. A Safety-Kleen subsidiary was, however, a Marine Shale customer and has been named a PRP. On May 11, 2007, the EPA and the LDEQ issued a special notice to the Company and other PRPs, seeking a good faith offer to address site remediation at the former Marine Shale facility. The Company has joined with other parties to form a group (the "Site Group") to retain common counsel and participate in further negotiations with the EPA and the LDEQ directed towards the eventual remediation of the Marine Shale site. The Site Group made a good faith settlement offer to the EPA on November 29, 2007, and negotiations among the EPA, the LDEQ and the Site Group with respect to the Marine Shale site are ongoing. At September 30, 2013 and December 31, 2012, the amount of the Company's reserves relating to the Marine Shale site were $4.5 million and $4.4 million, respectively.
Certain Other Third Party Sites.    At 11 of the 120 third party sites, Clean Harbors has an indemnification agreement with ChemWaste, a former subsidiary of Waste Management, Inc., and at five additional of those third party sites, Safety-Kleen has a similar indemnification agreement with McKesson Corporation. These agreements indemnify the Company (which now includes Safety-Kleen) with respect to any liability at the 16 sites for waste disposed prior to the Company's (or Safety-Kleen's) acquisition of the former subsidiaries of Waste Management or McKesson which had shipped wastes to those sites. Accordingly, Waste Management or McKesson are paying all costs of defending those subsidiaries in those 16 cases, including legal fees and settlement costs. However, there can be no guarantee that the Company's ultimate liabilities for those sites will not exceed the amount recorded or that indemnities applicable to any of these sites will be available to pay all or a portion of related costs. Except for the indemnification agreements which the Company holds from ChemWaste and McKesson, the Company does not have an indemnity agreement with respect to any of the 120 third party sites discussed above. In addition to the Wichita Property, the BR Facility and Marine Shale, Clean Harbors has 12 sites at which it believes its potential liability could exceed $100,000.
Federal, State and Provincial Enforcement Actions
From time to time, the Company pays fines or penalties in regulatory proceedings relating primarily to waste treatment, storage or disposal facilities. As of September 30, 2013 and December 31, 2012, there were five and four proceedings, respectively, for which the Company reasonably believed that the sanctions could equal or exceed $100,000. The Company believes that the fines or other penalties in these or any of the other regulatory proceedings will, individually or in the aggregate, not have a material effect on its financial condition, results of operations or cash flows.
(17) SEGMENT REPORTING 
During the first quarter of 2013, the Company adjusted its operating segments to integrate the business activities of Safety-Kleen, acquired in December 2012, and to incorporate other changes made in 2013 to the manner in which the Company manages its business, makes operating decisions and assesses its performance. The Company's operations are now managed in five reportable segments: Technical Services, Oil Re-refining and Recycling, SK Environmental Services, Industrial and Field Services and Oil and Gas Field Services. The prior year segment information has been recast to conform to the current year presentation.
Performance of the segments is evaluated on several factors, of which the primary financial measure is “Adjusted EBITDA,” which consists of net income plus accretion of environmental liabilities, depreciation and amortization, net interest expense, provision for income taxes and pre-tax, non-cash acquisition accounting adjustments. Also excluded are loss on early extinguishment of debt, other income (expense) and income from discontinued operations, net of tax as these amounts are not considered part of usual business operations. Transactions between the segments are accounted for at the Company’s estimate of fair value based on similar transactions with outside customers. 
The operations not managed through the Company’s five reportable segments are recorded as “Corporate Items.” Corporate Items revenues consist of two different operations for which the revenues are insignificant. Corporate Items cost of revenues represents certain central services that are not allocated to the five segments for internal reporting purposes. Corporate Items selling, general and administrative expenses include typical corporate items such as legal, accounting and other items of a

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general corporate nature that are not allocated to the Company’s five reportable segments. Corporate Items revenues for the nine months ended September 30, 2013 includes a one-time, non-cash reduction of approximately $10.2 million due to the impact of acquisition accounting adjustments on Safety-Kleen's historical deferred revenue balance at December 28, 2012. The revenue amounts of the five reportable segments for the nine months ended September 30, 2013 exclude such adjustments to maintain comparability with future operating results and reflect how the Company manages the business.
The following table reconciles third party revenues to direct revenues for the three and nine months ended September 30, 2013 and 2012 (in thousands). Third party revenue is revenue billed to outside customers by a particular segment. Direct revenue is the revenue allocated to the segment performing the provided service. The Company analyzes results of operations based on direct revenues because the Company believes that these revenues and related expenses best reflect the manner in which operations are managed. Intersegment revenues represent the sharing of third party revenues among the segments based on products and services provided by each segment as if the products and services were sold directly to the third party. The intersegment revenues are shown net. The negative intersegment revenues are due to more transfers out of customer revenues to other segments than transfers in of customer revenues from other segments.

 	 	For the Three Months Ended September 30, 2013	
 	 	Technical
Services	 	Oil Re-refining and Recycling	 	SK Environmental Services	 	Industrial and Field
Services	 	Oil and Gas Field
Services	 	Corporate
Items	 	Totals	
Third party revenues	 	$	269,465	
 	 	$	151,565	
 	 	$	150,535	
 	 	$	227,754	
 	 	$	107,627	
 	 	$	589	
 	 	$	907,535	
 	
Intersegment revenues, net	 	35,406	
 	 	(64,918	)	 	36,516	
 	 	(7,322	)	 	318	
 	 	—	
 	 	—	
 	
Corporate Items, net	 	964	
 	 	—	
 	 	—	
 	 	73	
 	 	(114	)	 	(923	)	 	—	
 	
Direct revenues	 	$	305,835	
 	 	$	86,647	
 	 	$	187,051	
 	 	$	220,505	
 	 	$	107,831	
 	 	$	(334	)	 	$	907,535	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	For the Three Months Ended September 30, 2012	
 	 	Technical
Services	 	Oil Re-refining and Recycling	 	SK Environmental Services	 	Industrial and Field
Services	 	Oil and Gas Field
Services	 	Corporate
Items	 	Totals	
Third party revenues	 	$	247,355	
 	 	$	—	
 	 	$	—	
 	 	$	203,371	
 	 	$	82,812	
 	 	$	268	
 	 	$	533,806	
 	
Intersegment revenues, net	 	6,951	
 	 	—	
 	 	—	
 	 	(8,877	)	 	1,926	
 	 	—	
 	 	—	
 	
Corporate Items, net	 	665	
 	 	—	
 	 	—	
 	 	100	
 	 	(98	)	 	(667	)	 	—	
 	
Direct revenues	 	$	254,971	
 	 	$	—	
 	 	$	—	
 	 	$	194,594	
 	 	$	84,640	
 	 	$	(399	)	 	$	533,806	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	For the Nine Months Ended September 30, 2013	
 	 	Technical
Services	 	Oil Re-refining and Recycling	 	SK Environmental Services	 	Industrial and Field
Services	 	Oil and Gas Field
Services	 	Corporate
Items	 	Totals	
Third party revenues	 	$	759,666	
 	 	$	438,191	
 	 	$	453,325	
 	 	$	693,667	
 	 	$	294,183	
 	 	$	(8,806	)	 	$	2,630,226	
 	
Intersegment revenues, net	 	85,614	
 	 	(186,053	)	 	126,441	
 	 	(32,316	)	 	6,314	
 	 	—	
 	 	—	
 	
Corporate Items, net	 	3,155	
 	 	—	
 	 	84	
 	 	184	
 	 	(314	)	 	(3,109	)	 	—	
 	
Direct revenues	 	$	848,435	
 	 	$	252,138	
 	 	$	579,850	
 	 	$	661,535	
 	 	$	300,183	
 	 	$	(11,915	)	 	$	2,630,226	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	For the Nine Months Ended September 30, 2012	
 	 	Technical
Services	 	Oil Re-refining and Recycling	 	SK Environmental Services	 	Industrial and Field
Services	 	Oil and Gas Field
Services	 	Corporate
Items	 	Totals	
Third party revenues	 	$	712,313	
 	 	$	—	
 	 	$	—	
 	 	$	608,768	
 	 	$	306,566	
 	 	$	1,299	
 	 	$	1,628,946	
 	
Intersegment revenues, net	 	24,235	
 	 	—	
 	 	—	
 	 	(31,246	)	 	7,011	
 	 	—	
 	 	—	
 	
Corporate Items, net	 	1,805	
 	 	—	
 	 	—	
 	 	48	
 	 	(391	)	 	(1,462	)	 	—	
 	
Direct revenues	 	$	738,353	
 	 	$	—	
 	 	$	—	
 	 	$	577,570	
 	 	$	313,186	
 	 	$	(163	)	 	$	1,628,946	

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The following table presents information used by management by reportable segment (in thousands). The Company does not allocate interest expense, income taxes, depreciation, amortization, accretion of environmental liabilities, pre-tax, non-cash acquisition accounting adjustments, and other (income) expense, to its segments.    

 	 	For the Three Months Ended	 	For the Nine Months Ended	
 	 	September 30,	 	September 30,	
 	 	2013	 	2012	 	2013	 	2012	
Adjusted EBITDA:	 	 	

 	 	 	
 	
Technical Services	 	$	78,849	
 	 	$	68,241	
 	 	$	208,284	
 	 	$	188,673	
 	
Oil Re-refining and Recycling	 	18,892	
 	 	—	
 	 	46,861	
 	 	—	
 	
SK Environmental Services	 	22,951	
 	 	—	
 	 	84,162	
 	 	—	
 	
Industrial and Field Services	 	48,096	
 	 	43,278	
 	 	138,638	
 	 	117,914	
 	
Oil and Gas Field Services	 	20,854	
 	 	14,132	
 	 	52,372	
 	 	62,299	
 	
Corporate Items	 	(43,690	)	 	(25,124	)	 	(149,547	)	 	(78,710	)	
Total	 	$	145,952	
 	 	$	100,527	
 	 	$	380,770	
 	 	$	290,176	

Reconciliation to Consolidated Statements of Income:	 	 	

 	 	 	
 	
Pre-tax, non-cash acquisition accounting adjustments	 	$	—	
 	 	$	—	
 	 	$	13,559	
 	 	$	—	
 	
Accretion of environmental liabilities	 	2,914	
 	 	2,488	
 	 	8,628	
 	 	7,409	
 	
Depreciation and amortization	 	69,430	
 	 	41,300	
 	 	196,904	
 	 	116,794	
 	
Income from operations	 	73,608	
 	 	56,739	
 	 	161,679	
 	 	165,973	
 	
Other expense (income)	 	150	
 	 	91	
 	 	(2,030	)	 	465	
 	
Loss on early extinguishment of debt	 	—	
 	 	26,385	
 	 	—	
 	 	26,385	
 	
Interest expense, net of interest income	 	19,326	
 	 	11,596	
 	 	58,784	
 	 	33,836	
 	
Income before provision for income taxes	 	$	54,132	
 	 	$	18,667	
 	 	$	104,925	
 	 	$	105,287	

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The following table presents assets by reportable segment and in the aggregate (in thousands):

 	 	September 30,
2013	 	December 31,
2012	
Property, plant and equipment, net	 	 	

Technical Services	 	$	398,778	
 	 	$	402,260	
 	
Oil Re-refining and Recycling	 	262,745	
 	 	224,289	
 	
SK Environmental Services	 	193,760	
 	 	195,172	
 	
Industrial and Field Services	 	410,776	
 	 	371,335	
 	
Oil and Gas Field Services	 	240,863	
 	 	257,985	
 	
Corporate Items	 	108,505	
 	 	80,722	
 	
Total property, plant and equipment, net	 	$	1,615,427	
 	 	$	1,531,763	
 	
Intangible assets:	 	 	

Technical Services	 	 	

Goodwill	 	$	47,917	
 	 	$	48,157	
 	
Permits and other intangibles, net	 	81,689	
 	 	85,842	
 	
Total Technical Services	 	129,606	
 	 	133,999	
 	
Oil Re-refining and Recycling	 	 	

Goodwill	 	215,816	
 	 	215,704	
 	
Permits and other intangibles, net	 	233,259	
 	 	222,182	
 	
Total Oil Re-refining and Recycling	 	449,075	
 	 	437,886	
 	
SK Environmental Services	 	 	

Goodwill	 	146,956	
 	 	148,422	
 	
Permits and other intangibles, net	 	186,043	
 	 	190,472	
 	
Total SK Environmental Services	 	332,999	
 	 	338,894	
 	
Industrial and Field Services	 	 	

Goodwill	 	140,927	
 	 	141,726	
 	
Permits and other intangibles, net	 	36,854	
 	 	41,143	
 	
Total Industrial and Field Services	 	177,781	
 	 	182,869	
 	
Oil and Gas Field Services	 	 	

Goodwill	 	38,536	
 	 	39,762	
 	
Permits and other intangibles, net	 	29,931	
 	 	33,178	
 	
Total Oil and Gas Field Services	 	68,467	
 	 	72,940	
 	
Total	 	$	1,157,928	
 	 	$	1,166,588	
 	
The following table presents total assets by reportable segment (in thousands):

 	 	September 30,
2013	 	December 31,
2012	
Technical Services	 	$	699,713	
 	 	$	714,777	
 	
Oil Re-refining and Recycling	 	833,336	
 	 	797,650	
 	
SK Environmental Services	 	642,557	
 	 	647,746	
 	
Industrial and Field Services	 	645,183	
 	 	607,654	
 	
Oil and Gas Field Services	 	310,481	
 	 	348,771	
 	
Corporate Items	 	825,582	
 	 	709,208	
 	
Total	 	$	3,956,852	
 	 	$	3,825,806	

23

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The following table presents total assets by geographical area (in thousands):

 	 	September 30,
2013	 	December 31,
2012	
United States	 	$	2,665,328	
 	 	$	2,564,609	
 	
Canada	 	1,287,090	
 	 	1,260,421	
 	
Other foreign	 	4,434	
 	 	776	
 	
Total	 	$	3,956,852	
 	 	$	3,825,806	
 	
(18) GUARANTOR AND NON-GUARANTOR SUBSIDIARIES FINANCIAL INFORMATION
The 2020 Notes and 2021 Notes are guaranteed by substantially all of the Company's subsidiaries organized in the United States. Each guarantor for the 2020 Notes and 2021 Notes is a wholly-owned subsidiary of the Company and its guarantee is both full and unconditional and joint and several.  The 2020 Notes and 2021 Notes are not guaranteed by the Company’s Canadian or other foreign subsidiaries. The following presents supplemental condensed consolidating financial information for the parent company, the guarantor subsidiaries and the non-guarantor subsidiaries, respectively.
Following is the condensed consolidating balance sheet at September 30, 2013 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Consolidating
Adjustments	 	Total	
Assets:	 	 	

 	 	 	

Cash and cash equivalents	 	$	1,006	
 	 	$	187,926	
 	 	$	59,703	
 	 	$	—	
 	 	$	248,635	
 	
Intercompany receivables	 	336,356	
 	 	2,369	
 	 	174,609	
 	 	(513,334	)	 	—	
 	
Other current assets	 	12,144	
 	 	589,065	
 	 	291,930	
 	 	—	
 	 	893,139	
 	
Property, plant and equipment, net	 	—	
 	 	942,331	
 	 	673,096	
 	 	—	
 	 	1,615,427	
 	
Investments in subsidiaries	 	2,601,246	
 	 	929,111	
 	 	144,953	
 	 	(3,675,310	)	 	—	
 	
Intercompany debt receivable	 	—	
 	 	508,524	
 	 	3,701	
 	 	(512,225	)	 	—	
 	
Other long-term assets	 	20,842	
 	 	900,617	
 	 	278,192	
 	 	—	
 	 	1,199,651	
 	
Total assets	 	$	2,971,594	
 	 	$	4,059,943	
 	 	$	1,626,184	
 	 	$	(4,700,869	)	 	$	3,956,852	
 	
Liabilities and Stockholders’ Equity:	 	 	

 	 	 	

Current liabilities	 	$	40,600	
 	 	$	472,178	
 	 	$	156,754	
 	 	$	—	
 	 	$	669,532	
 	
Intercompany payables	 	—	
 	 	510,906	
 	 	2,428	
 	 	(513,334	)	 	—	
 	
Closure, post-closure and remedial liabilities, net	 	—	
 	 	158,366	
 	 	33,482	
 	 	—	
 	 	191,848	
 	
Long-term obligations	 	1,400,000	
 	 	—	
 	 	—	
 	 	—	
 	 	1,400,000	
 	
Capital lease obligations, net	 	—	
 	 	231	
 	 	1,438	
 	 	—	
 	 	1,669	
 	
Intercompany debt payable	 	3,701	
 	 	—	
 	 	508,524	
 	 	(512,225	)	 	—	
 	
Other long-term liabilities	 	51,173	
 	 	124,441	
 	 	42,069	
 	 	—	
 	 	217,683	
 	
Total liabilities	 	1,495,474	
 	 	1,266,122	
 	 	744,695	
 	 	(1,025,559	)	 	2,480,732	
 	
Stockholders’ equity	 	1,476,120	
 	 	2,793,821	
 	 	881,489	
 	 	(3,675,310	)	 	1,476,120	
 	
Total liabilities and stockholders’ equity	 	$	2,971,594	
 	 	$	4,059,943	
 	 	$	1,626,184	
 	 	$	(4,700,869	)	 	$	3,956,852	

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Following is the condensed consolidating balance sheet at December 31, 2012 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Consolidating
Adjustments	 	Total	
Assets:	 	 	

 	 	 	

Cash and cash equivalents	 	$	35,214	
 	 	$	140,683	
 	 	$	53,939	
 	 	$	—	
 	 	$	229,836	
 	
Intercompany receivables	 	296,023	
 	 	17,704	
 	 	116,571	
 	 	(430,298	)	 	—	
 	
Other current assets	 	38,295	
 	 	526,354	
 	 	292,308	
 	 	—	
 	 	856,957	
 	
Property, plant and equipment, net	 	—	
 	 	886,032	
 	 	645,731	
 	 	—	
 	 	1,531,763	
 	
Investments in subsidiaries	 	2,528,699	
 	 	850,011	
 	 	144,953	
 	 	(3,523,663	)	 	—	
 	
Intercompany debt receivable	 	—	
 	 	508,067	
 	 	3,701	
 	 	(511,768	)	 	—	
 	
Other long-term assets	 	21,141	
 	 	896,991	
 	 	289,118	
 	 	—	
 	 	1,207,250	
 	
Total assets	 	$	2,919,372	
 	 	$	3,825,842	
 	 	$	1,546,321	
 	 	$	(4,465,729	)	 	$	3,825,806	
 	
Liabilities and Stockholders’ Equity:	 	 	

 	 	 	

Current liabilities	 	$	32,586	
 	 	$	402,990	
 	 	$	133,476	
 	 	$	—	
 	 	$	569,052	
 	
Intercompany payables	 	—	
 	 	412,594	
 	 	17,704	
 	 	(430,298	)	 	—	
 	
Closure, post-closure and remedial liabilities, net	 	—	
 	 	161,175	
 	 	36,172	
 	 	—	
 	 	197,347	
 	
Long-term obligations	 	1,400,000	
 	 	—	
 	 	—	
 	 	—	
 	 	1,400,000	
 	
Capital lease obligations, net	 	—	
 	 	301	
 	 	2,578	
 	 	—	
 	 	2,879	
 	
Intercompany debt payable	 	3,701	
 	 	—	
 	 	508,067	
 	 	(511,768	)	 	—	
 	
Other long-term liabilities	 	51,013	
 	 	134,393	
 	 	39,050	
 	 	—	
 	 	224,456	
 	
Total liabilities	 	1,487,300	
 	 	1,111,453	
 	 	737,047	
 	 	(942,066	)	 	2,393,734	
 	
Stockholders’ equity	 	1,432,072	
 	 	2,714,389	
 	 	809,274	
 	 	(3,523,663	)	 	1,432,072	
 	
Total liabilities and stockholders’ equity	 	$	2,919,372	
 	 	$	3,825,842	
 	 	$	1,546,321	
 	 	$	(4,465,729	)	 	$	3,825,806	

25

Table of Contents

Following is the consolidating statement of income (loss) for the three months ended September 30, 2013 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Consolidating
Adjustments	 	Total	
Revenues	 	 	 	 	 	 	 	 	 	

Service revenues	 	$	—	
 	 	$	445,165	
 	 	$	256,812	
 	 	$	56	
 	 	$	702,033	
 	
Product revenues	 	—	
 	 	169,743	
 	 	35,815	
 	 	(56	)	 	205,502	
 	
   Total revenues	 	—	
 	 	614,908	
 	 	292,627	
 	 	—	
 	 	907,535	
 	
Cost of revenues (exclusive of items shown separately below)	 	 	 	 	 	 	 	 	 	

Service cost of revenues	 	—	
 	 	300,859	
 	 	177,519	
 	 	56	
 	 	478,434	
 	
Product cost of revenues	 	—	
 	 	139,683	
 	 	29,058	
 	 	(56	)	 	168,685	
 	
   Total cost of revenues	 	—	
 	 	440,542	
 	 	206,577	
 	 	—	
 	 	647,119	
 	
Selling, general and administrative expenses	 	29	
 	 	81,496	
 	 	32,939	
 	 	—	
 	 	114,464	
 	
Accretion of environmental liabilities	 	—	
 	 	2,478	
 	 	436	
 	 	—	
 	 	2,914	
 	
Depreciation and amortization	 	—	
 	 	45,533	
 	 	23,897	
 	 	—	
 	 	69,430	
 	
Income from operations	 	(29	)	 	44,859	
 	 	28,778	
 	 	—	
 	 	73,608	
 	
Other expense	 	—	
 	 	(111	)	 	(39	)	 	—	
 	 	(150	)	
Interest (expense) income	 	(19,844	)	 	137	
 	 	381	
 	 	—	
 	 	(19,326	)	
Equity in earnings of subsidiaries	 	58,919	
 	 	21,064	
 	 	—	
 	 	(79,983	)	 	—	
 	
Intercompany dividend income (expense)	 	—	
 	 	—	
 	 	3,063	
 	 	(3,063	)	 	—	
 	
Intercompany interest income (expense)	 	—	
 	 	10,107	
 	 	(10,107	)	 	—	
 	 	—	
 	
Income before provision for income taxes	 	39,046	
 	 	76,056	
 	 	22,076	
 	 	(83,046	)	 	54,132	
 	
Provision for income taxes	 	3,685	
 	 	8,218	
 	 	6,868	
 	 	—	
 	 	18,771	
 	
Net income	 	35,361	
 	 	67,838	
 	 	15,208	
 	 	(83,046	)	 	35,361	
 	
Other comprehensive (loss) income	 	21,805	
 	 	21,805	
 	 	(10,072	)	 	(11,733	)	 	21,805	
 	
Comprehensive (loss) income	 	$	57,166	
 	 	$	89,643	
 	 	$	5,136	
 	 	$	(94,779	)	 	$	57,166	

26

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Following is the consolidating statement of income (loss) for the three months ended September 30, 2012 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Consolidating
Adjustments	 	Total	
 	 	 	 	 	 	 	 	 	 	 	
Revenues	 	 	 	 	 	 	 	 	 	 	
Service revenues	 	$	—	
 	 	$	290,295	
 	 	$	218,304	
 	 	$	(4,871	)	 	$	503,728	
 	
Product revenues	 	—	
 	 	24,527	
 	 	5,678	
 	 	(127	)	 	30,078	
 	
   Total revenues	 	—	
 	 	314,822	
 	 	223,982	
 	 	(4,998	)	 	533,806	
 	
Cost of revenues (exclusive of items shown separately below)	 	 	 	 	 	 	 	 	 	 	
Service cost of revenues	 	—	
 	 	198,793	
 	 	154,836	
 	 	(4,871	)	 	348,758	
 	
Product cost of revenues	 	—	
 	 	19,904	
 	 	4,405	
 	 	(127	)	 	24,182	
 	
   Total cost of revenues	 	—	
 	 	218,697	
 	 	159,241	
 	 	(4,998	)	 	372,940	
 	
Selling, general and administrative expenses	 	9	
 	 	35,810	
 	 	24,520	
 	 	—	
 	 	60,339	
 	
Accretion of environmental liabilities	 	—	
 	 	2,150	
 	 	338	
 	 	—	
 	 	2,488	
 	
Depreciation and amortization	 	—	
 	 	20,778	
 	 	20,522	
 	 	—	
 	 	41,300	
 	
Income from operations	 	(9	)	 	37,387	
 	 	19,361	
 	 	—	
 	 	56,739	
 	
Other (expense) income	 	—	
 	 	(8	)	 	(83	)	 	—	
 	 	(91	)	
Loss on early extinguishment of debt	 	(26,385	)	 	—	
 	 	—	
 	 	—	
 	 	(26,385	)	
Interest expense	 	(11,247	)	 	180	
 	 	(529	)	 	—	
 	 	(11,596	)	
Equity in earnings of subsidiaries	 	50,039	
 	 	15,869	
 	 	—	
 	 	(65,908	)	 	—	
 	
Intercompany dividend income (expense)	 	—	
 	 	—	
 	 	3,439	
 	 	(3,439	)	 	—	
 	
Intercompany interest income (expense)	 	—	
 	 	10,290	
 	 	(10,290	)	 	—	
 	 	—	
 	
Income before provision for income taxes	 	12,398	
 	 	63,718	
 	 	11,898	
 	 	(69,347	)	 	18,667	
 	
Provision for income taxes	 	39	
 	 	3,831	
 	 	2,438	
 	 	—	
 	 	6,308	
 	
Net income	 	12,359	
 	 	59,887	
 	 	9,460	
 	 	(69,347	)	 	12,359	
 	
Other comprehensive income (loss)	 	29,980	
 	 	29,980	
 	 	13,042	
 	 	(43,022	)	 	29,980	
 	
Comprehensive income (loss)	 	$	42,339	
 	 	$	89,867	
 	 	$	22,502	
 	 	$	(112,369	)	 	$	42,339	

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Following is the consolidating statement of income (loss) for the nine months ended September 30, 2013 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Consolidating
Adjustments	 	Total	
 	 	 	 	 	 	 	 	 	 	 	
Revenues	 	 	 	 	 	 	 	 	 	

Service revenues	 	$	—	
 	 	$	1,295,525	
 	 	$	755,856	
 	 	$	(2,854	)	 	$	2,048,527	
 	
Product revenues	 	—	
 	 	463,301	
 	 	119,267	
 	 	(869	)	 	581,699	
 	
   Total revenues	 	—	
 	 	1,758,826	
 	 	875,123	
 	 	(3,723	)	 	2,630,226	
 	
Cost of revenues (exclusive of items shown separately below)	 	 	 	 	 	 	 	 	 	

Service cost of revenues	 	—	
 	 	873,945	
 	 	531,318	
 	 	(2,854	)	 	1,402,409	
 	
Product cost of revenues	 	—	
 	 	395,891	
 	 	100,038	
 	 	(869	)	 	495,060	
 	
   Total cost of revenues	 	—	
 	 	1,269,836	
 	 	631,356	
 	 	(3,723	)	 	1,897,469	
 	
Selling, general and administrative expenses	 	84	
 	 	266,941	
 	 	98,521	
 	 	—	
 	 	365,546	
 	
Accretion of environmental liabilities	 	—	
 	 	7,315	
 	 	1,313	
 	 	—	
 	 	8,628	
 	
Depreciation and amortization	 	—	
 	 	127,042	
 	 	69,862	
 	 	—	
 	 	196,904	
 	
Income from operations	 	(84	)	 	87,692	
 	 	74,071	
 	 	—	
 	 	161,679	
 	
Other income (expense)	 	—	
 	 	2,858	
 	 	(828	)	 	—	
 	 	2,030	
 	
Interest (expense) income	 	(59,408	)	 	137	
 	 	487	
 	 	—	
 	 	(58,784	)	
Equity in earnings of subsidiaries	 	134,246	
 	 	57,040	
 	 	—	
 	 	(191,286	)	 	—	
 	
Intercompany dividend income (expense)	 	—	
 	 	—	
 	 	10,031	
 	 	(10,031	)	 	—	
 	
Intercompany interest income (expense)	 	—	
 	 	30,414	
 	 	(30,414	)	 	—	
 	 	—	
 	
Income before provision for income taxes	 	74,754	
 	 	178,141	
 	 	53,347	
 	 	(201,317	)	 	104,925	
 	
Provision for income taxes	 	5,989	
 	 	14,753	
 	 	15,418	
 	 	—	
 	 	36,160	
 	
Net income	 	68,765	
 	 	163,388	
 	 	37,929	
 	 	(201,317	)	 	68,765	
 	
Other comprehensive (loss) income	 	(37,562	)	 	(37,562	)	 	20,385	
 	 	17,177	
 	 	(37,562	)	
Comprehensive (loss) income	 	$	31,203	
 	 	$	125,826	
 	 	$	58,314	
 	 	$	(184,140	)	 	$	31,203	

    

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Following is the consolidating statement of income (loss) for the nine months ended September 30, 2012 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Consolidating
Adjustments	 	Total	
 	 	 	 	 	 	 	 	 	 	 	
Revenues	 	 	 	 	 	 	 	 	 	 	
Service revenues	 	$	—	
 	 	$	850,737	
 	 	$	687,924	
 	 	$	(14,894	)	 	$	1,523,767	
 	
Product revenues	 	—	
 	 	69,364	
 	 	36,608	
 	 	(793	)	 	105,179	
 	
   Total revenues	 	—	
 	 	920,101	
 	 	724,532	
 	 	(15,687	)	 	1,628,946	
 	
Cost of revenues (exclusive of items shown separately below)	 	 	 	 	 	 	 	 	 	 	
Service cost of revenues	 	—	
 	 	575,006	
 	 	496,062	
 	 	(14,894	)	 	1,056,174	
 	
Product cost of revenues	 	—	
 	 	55,646	
 	 	29,851	
 	 	(793	)	 	84,704	
 	
   Total cost of revenues	 	—	
 	 	630,652	
 	 	525,913	
 	 	(15,687	)	 	1,140,878	
 	
Selling, general and administrative expenses	 	27	
 	 	122,167	
 	 	75,698	
 	 	—	
 	 	197,892	
 	
Accretion of environmental liabilities	 	—	
 	 	6,430	
 	 	979	
 	 	—	
 	 	7,409	
 	
Depreciation and amortization	 	—	
 	 	56,568	
 	 	60,226	
 	 	—	
 	 	116,794	
 	
Income from operations	 	(27	)	 	104,284	
 	 	61,716	
 	 	—	
 	 	165,973	
 	
Other (expense) income	 	—	
 	 	(333	)	 	(132	)	 	—	
 	 	(465	)	
Loss on early extinguishment of debt	 	(26,385	)	 	—	
 	 	—	
 	 	—	
 	 	(26,385	)	
Interest expense	 	(32,679	)	 	—	
 	 	(1,157	)	 	—	
 	 	(33,836	)	
Equity in earnings of subsidiaries	 	124,965	
 	 	49,236	
 	 	—	
 	 	(174,201	)	 	—	
 	
Intercompany dividend income (expense)	 	10,010	
 	 	—	
 	 	10,354	
 	 	(20,364	)	 	—	
 	
Intercompany interest income (expense)	 	—	
 	 	30,894	
 	 	(30,894	)	 	—	
 	 	—	
 	
Income before provision for income taxes	 	75,884	
 	 	184,081	
 	 	39,887	
 	 	(194,565	)	 	105,287	
 	
Provision for income taxes	 	8,084	
 	 	19,473	
 	 	9,930	
 	 	—	
 	 	37,487	
 	
Net income	 	67,800	
 	 	164,608	
 	 	29,957	
 	 	(194,565	)	 	67,800	
 	
Other comprehensive income (loss)	 	27,703	
 	 	27,703	
 	 	11,370	
 	 	(39,073	)	 	27,703	
 	
Comprehensive income (loss)	 	$	95,503	
 	 	$	192,311	
 	 	$	41,327	
 	 	$	(233,638	)	 	$	95,503	

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Following is the condensed consolidating statement of cash flows for the nine months ended September 30, 2013 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Total	
 	 	 	 	 	 	 	 	 	
Net cash from operating activities	 	$	(38,228	)	 	$	176,844	
 	 	$	141,498	
 	 	$	280,114	
 	
Cash flows from investing activities:	 	 	

 	 	 	
 	
Additions to property, plant and equipment	 	—	
 	 	(101,813	)	 	(105,828	)	 	(207,641	)	
Proceeds from sales of fixed assets	 	—	
 	 	819	
 	 	2,881	
 	 	3,700	
 	
Acquisitions, net of cash acquired	 	—	
 	 	(59,458	)	 	—	
 	 	(59,458	)	
Costs to obtain or renew permits	 	—	
 	 	(221	)	 	(4,136	)	 	(4,357	)	
Other	 	—	
 	 	—	
 	 	(11	)	 	(11	)	
Net cash from investing activities	 	—	
 	 	(160,673	)	 	(107,094	)	 	(267,767	)	
 	 	 	 	 	 	 	 	 	
Cash flows from financing activities:	 	 	

 	 	 	
 	
Change in uncashed checks	 	—	
 	 	9,427	
 	 	327	
 	 	9,754	
 	
Proceeds from exercise of stock options	 	399	
 	 	—	
 	 	—	
 	 	399	
 	
Proceeds from employee stock purchase plan	 	5,327	
 	 	—	
 	 	—	
 	 	5,327	
 	
Remittance of shares, net	 	(599	)	 	—	
 	 	—	
 	 	(599	)	
Excess tax benefit of stock-based compensation	 	1,589	
 	 	—	
 	 	—	
 	 	1,589	
 	
Deferred financing costs paid	 	(2,446	)	 	—	
 	 	—	
 	 	(2,446	)	
Payments on capital leases	 	—	
 	 	(178	)	 	(3,918	)	 	(4,096	)	
Issuance costs related to 2012 issuance of common stock	 	(250	)	 	 	 	 	 	(250	)	
Dividends (paid) / received	 	—	
 	 	(10,284	)	 	10,284	
 	 	—	
 	
Interest (payments) / received	 	—	
 	 	32,107	
 	 	(32,107	)	 	—	
 	
Net cash from financing activities	 	4,020	
 	 	31,072	
 	 	(25,414	)	 	9,678	
 	
Effect of exchange rate change on cash	 	—	
 	 	—	
 	 	(3,226	)	 	(3,226	)	
(Decrease) increase in cash and cash equivalents	 	(34,208	)	 	47,243	
 	 	5,764	
 	 	18,799	
 	
Cash and cash equivalents, beginning of period	 	35,214	
 	 	140,683	
 	 	53,939	
 	 	229,836	
 	
Cash and cash equivalents, end of period	 	$	1,006	
 	 	$	187,926	
 	 	$	59,703	
 	 	$	248,635	

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Following is the condensed consolidating statement of cash flows for the nine months ended September 30, 2012 (in thousands):

 	 	Clean
Harbors, Inc.	 	U.S. Guarantor
Subsidiaries	 	Foreign
Non-Guarantor
Subsidiaries	 	Total	
 	 	 	 	 	 	 	 	 	
Net cash from operating activities	 	$	(49,918	)	 	$	98,497	
 	 	$	184,113	
 	 	$	232,692	
 	
Cash flows from investing activities:	 	 	

 	 	 	
 	
Additions to property, plant and equipment	 	—	
 	 	(75,664	)	 	(54,662	)	 	(130,326	)	
Proceeds from sale of fixed assets	 	—	
 	 	3,411	
 	 	779	
 	 	4,190	
 	
Acquisitions, net of cash acquired	 	—	
 	 	(51,424	)	 	(41,051	)	 	(92,475	)	
Costs to obtain or renew permits	 	—	
 	 	(625	)	 	(1,784	)	 	(2,409	)	
Purchase of available for sale securities	 	—	
 	 	—	
 	 	(10,517	)	 	(10,517	)	
Other	 	 	 	603	
 	 	4,517	
 	 	5,120	
 	
Net cash from investing activities	 	—	
 	 	(123,699	)	 	(102,718	)	 	(226,417	)	
 	 	 	 	 	 	 	 	 	
Cash flows from financing activities:	 	 	

 	 	 	
 	
Change in uncashed checks	 	—	
 	 	(7,771	)	 	(6,184	)	 	(13,955	)	
Proceeds from exercise of stock options	 	231	
 	 	—	
 	 	—	
 	 	231	
 	
Proceeds from employee stock purchase plan	 	4,627	
 	 	—	
 	 	—	
 	 	4,627	
 	
Remittance of shares, net	 	(1,604	)	 	—	
 	 	—	
 	 	(1,604	)	
Excess tax benefit of stock-based compensation	 	1,786	
 	 	—	
 	 	—	
 	 	1,786	
 	
Deferred financing costs paid	 	(9,638	)	 	—	
 	 	—	
 	 	(9,638	)	
Payments of capital leases	 	—	
 	 	(781	)	 	(4,522	)	 	(5,303	)	
Distribution of cash earned on employee participation plan	 	(55	)	 	—	
 	 	—	
 	 	(55	)	
Principal payment on debt	 	$	(520,000	)	 	$	—	
 	 	$	—	
 	 	(520,000	)	
Issuance of senior unsecured notes	 	800,000	
 	 	—	
 	 	—	
 	 	800,000	
 	
Dividends (paid) / received	 	10,010	
 	 	(23,669	)	 	13,659	
 	 	—	
 	
Interest (payments) / received	 	—	
 	 	43,954	
 	 	(43,954	)	 	—	
 	
Net cash from financing activities	 	285,357	
 	 	11,733	
 	 	(41,001	)	 	256,089	
 	
Effect of exchange rate change on cash	 	—	
 	 	—	
 	 	527	
 	 	527	
 	
Increase (decrease) in cash and cash equivalents	 	235,439	
 	 	(13,469	)	 	40,921	
 	 	262,891	
 	
Cash and cash equivalents, beginning of period	 	91,581	
 	 	128,071	
 	 	41,071	
 	 	260,723	
 	
Cash and cash equivalents, end of period	 	$	327,020	
 	 	$	114,602	
 	 	$	81,992	
 	 	$	523,614	

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ITEM 2.                        MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS  
Forward-Looking Statements 
In addition to historical information, this Quarterly Report on Form 10-Q contains forward-looking statements, which are generally identifiable by use of the words “believes,” “expects,” “intends,” “anticipates,” “plans to,” “estimates,” “projects,” or similar expressions. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those reflected in these forward-looking statements. Factors that might cause such a difference include, but are not limited to, those discussed under Item 1A, “Risk Factors,” in our Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 6, 2013, under Item 1A, “Risk Factors,” included in Part II—Other Information in this report, and in other documents we file from time to time with the Securities and Exchange Commission.  Readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management’s opinions only as of the date hereof. We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements.
General 
We are a leading provider of environmental, energy and industrial services throughout North America. 
Following our acquisition of Safety-Kleen in December 2012, we made changes in 2013 to the manner in which we manage our business, make operating decisions and assess our performance. The amounts presented for all periods herein have been recast to reflect the impact of such changes. Under the new structure, we report the business in five reportable segments, including: 
 	 	
•	Technical Services — provides a broad range of hazardous material management services including the packaging, collection, transportation, treatment and disposal of hazardous and non-hazardous waste at Company-owned incineration, landfill, wastewater, and other treatment facilities.	
 	 	
•	Oil Re-refining and Recycling — processes used oil into high quality base and blended lubricating oils which are then sold to third party customers, and provides recycling of oil in excess of Safety-Kleen's current re-refining capacity into recycled fuel oil which is then sold to third parties. Processing into base and blended lubricating oils takes place in the Company's three owned and operated re-refineries and recycling of oil into recycled fuel oil takes place in one of the Company's used oil terminals.	
 	 	
•	SK Environmental Services — provides a broad range of environmental services, such as parts cleaning, containerized waste services, oil collection, and other complementary products and services, including vacuum services, allied products and other environmental services.	
 	 	
•	Industrial and Field Services — provides industrial and specialty services, such as high-pressure and chemical cleaning, catalyst handling, decoking, material processing, and industrial lodging services to refineries, chemical plants, oil sands facilities, pulp and paper mills, and other industrial facilities. Also provides a wide variety of environmental cleanup services on customer sites or other locations on a scheduled or emergency response basis including tank cleaning, decontamination, remediation, and spill cleanup.	
 	 	
•	Oil & Gas Field Services — provides fluid handling, fluid hauling, production servicing, surface rentals, seismic services, and directional boring services to the energy sector serving oil and gas exploration, production, and power generation. 	
Acquisition of Safety-Kleen
On December 28, 2012, we acquired 100% of the outstanding common shares of Safety-Kleen for approximately $1.3 billion. The purchase price consisted of an all-cash purchase price of $1.25 billion, plus a $7.3 million adjustment for the amount by which the estimated net working capital (excluding cash) of Safety-Kleen on the closing date exceeded $50.0 million. The purchase price is subject to adjustment upon finalization of Safety-Kleen's net working capital balance (excluding cash) as of the closing date. We financed the purchase through a combination of approximately $300.0 million of existing cash, $369.3 million in net proceeds from our public offering of 6.9 million shares of our common stock, and approximately $589.0 million in net proceeds from our private debt offering of $600.0 million of 5.125% senior unsecured notes due 2021.
Safety-Kleen, headquartered in Richardson, Texas, is the largest re-refiner and recycler of used oil in North America and a leading provider of parts cleaning and environmental services to commercial, industrial and automotive customers. In conjunction with the transaction, Safety-Kleen, Inc. and its subsidiaries became wholly-owned subsidiaries of Clean Harbors.

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Summary of Operations
 During the three months ended September 30, 2013, our revenues were $907.5 million, compared with $533.8 million during the three months ended September 30, 2012. The 70% increase in revenue was primarily driven by our acquisition of Safety-Kleen in December 2012.
Our Technical Services revenues accounted for 34% of our total revenues for the three months ended September 30, 2013.  The year-over-year increase in revenues of 20% resulted from our acquisition of Safety-Kleen delivering high utilization and volumes into our disposal network, as well as our integration of a portion of the Safety-Kleen business into our Technical Services segment. The utilization rate at our incinerators was 93.5% for the three months ended September 30, 2013, compared with 91.3% in the comparable period of 2012, and our landfill volumes increased by approximately 7% year-over-year as a result of large-scale project work.
Our Oil Re-refining and Recycling revenues accounted for 9% of our total revenues for the three months ended September 30, 2013. During the third quarter, the pricing environment in Group II base oil was stable and posted industry prices increased by 10 cents per gallon late in the quarter. Revenue increased from the second quarter as a result of higher total volume of base oil and blended oil sales, improved base oil pricing and increased by-products sales volumes.
Our SK Environmental Services revenues accounted for 21% of our total revenues for the three months ended September 30, 2013. Demand for our containerized waste services, parts washers, vacuum services and allied products was consistent with prior quarters. In addition, our waste oil collection volumes were up slightly in the quarter, increasing 1% from second quarter levels.
Our Industrial and Field Services revenues accounted for 24% of our total revenues for the three months ended September 30, 2013. The year-over-year increase in revenue of 13% was primarily due to positive contributions from several acquisitions resulting in increases in our turnaround services business and our field services business. This growth was tempered by a loss of a contract and softness in our lodging business. Our lodging business was impacted by the delay in completing the construction of the Ruth Lake camp due to flooding and weather issues.  
Our Oil and Gas Field Services revenues accounted for 12% of our total revenues for the three months ended September 30, 2013. The year-over-year increase of 27% was primarily due to an increase in our seismic business in Western Canada, continued expansion in the U.S., and flood and oil-spill cleanup work in the region.  
Our cost of revenues increased from $372.9 million during the three months ended September 30, 2012 to $647.1 million during the three months ended September 30, 2013.  Our cost of revenues increased primarily due to our acquisition of Safety-Kleen in December 2012.  Our gross profit margin was 28.7% for the three months ended September 30, 2013, compared to 30.1% in the same period last year. The year-over-year decrease in gross margin percentage was primarily due to the acquisition of Safety-Kleen, which carries a lower margin.
During the three months ended September 30, 2013, our effective tax rate was 34.7%, compared with 33.8% for the same period last year. The increase in the effective tax rate for the three months ended September 30, 2013 was primarily attributable to a small decline in the year-to-date rate recorded during the three months ended September 30, 2012.
Environmental Liabilities 
The net decrease in our estimated environmental liabilities during the nine months ended September 30, 2013 was $1.9 million, including favorable benefits from changes in environmental liability estimates of $2.4 million. The favorable benefits over the past few years from changes in environmental liability estimates were due to the successful introduction of new technology for remedial activities, favorable results from environmental studies of the on-going remediation, including favorable regulatory approvals, and lower project costs realized by utilizing internal labor and equipment. During the nine months ended September 30, 2013, the $2.4 million favorable benefit from changes in environmental liability estimates primarily related to a reduction in remedial liabilities for one inactive site that recently received site closure approval and resulted in reevaluating and removing certain compensation costs.
Earnings Before Interest, Taxes, Depreciation and Amortization (“Adjusted EBITDA”) 
We define Adjusted EBITDA (a measure not defined under generally accepted accounting principles) as net income plus accretion of environmental liabilities, depreciation and amortization, net interest expense, provision for income taxes and pre-tax, non-cash acquisition accounting adjustments. Also excluded are loss on early extinguishment of debt, other income (expense) and income from discontinued operations, net of tax as these amounts are not considered part of usual business operations.  Our management considers Adjusted EBITDA to be a measurement of performance which provides useful information to both management and investors. Adjusted EBITDA should not be considered an alternative to net income or other measurements under

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generally accepted accounting principles in the United States (“GAAP”). Because Adjusted EBITDA is not calculated identically by all companies, our measurements of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies. 
We use Adjusted EBITDA to enhance our understanding of our core operating performance, which represents our views concerning our performance in the ordinary, ongoing and customary course of our operations. We historically have found it helpful, and believe that investors have found it helpful, to consider an operating measure that excludes expenses such as debt extinguishment and related costs relating to transactions not reflective of our core operations. 
The information about our core operating performance provided by this financial measure is used by our management for a variety of purposes. We regularly communicate Adjusted EBITDA results to our board of directors and discuss with the board our interpretation of such results. We also compare our Adjusted EBITDA performance against internal targets as a key factor in determining cash bonus compensation for executives and other employees, largely because we believe that this measure is indicative of how the fundamental business is performing and is being managed.
We also provide information relating to our Adjusted EBITDA so that analysts, investors and other interested persons have the same data that we use to assess our core operating performance. We believe that Adjusted EBITDA should be viewed only as a supplement to the GAAP financial information. We also believe, however, that providing this information in addition to, and together with, GAAP financial information permits the foregoing persons to obtain a better understanding of our core operating performance and to evaluate the efficacy of the methodology and information used by management to evaluate and measure such performance on a stand-alone and a comparative basis. 
The following is a reconciliation of net income to Adjusted EBITDA (in thousands):

 	 	For the Three Months Ended	 	For the Nine Months Ended	
 	 	September 30,	 	September 30,	
 	 	2013	 	2012	 	2013	 	2012	
Net income	 	$	35,361	
 	 	$	12,359	
 	 	$	68,765	
 	 	$	67,800	
 	
Accretion of environmental liabilities	 	2,914	
 	 	2,488	
 	 	8,628	
 	 	7,409	
 	
Depreciation and amortization	 	69,430	
 	 	41,300	
 	 	196,904	
 	 	116,794	
 	
Other expense (income)	 	150	
 	 	91	
 	 	(2,030	)	 	465	
 	
Loss on early extinguishment of debt	 	—	
 	 	26,385	
 	 	—	
 	 	26,385	
 	
Interest expense, net	 	19,326	
 	 	11,596	
 	 	58,784	
 	 	33,836	
 	
Pre-tax, non-cash acquisition accounting adjustments	 	—	
 	 	—	
 	 	13,559	
 	 	—	
 	
Provision for income taxes	 	18,771	
 	 	6,308	
 	 	36,160	
 	 	37,487	
 	
Adjusted EBITDA	 	$	145,952	
 	 	$	100,527	
 	 	$	380,770	
 	 	$	290,176	

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The following reconciles Adjusted EBITDA to cash from operations (in thousands):

 	 	For the Nine Months Ended	
 	 	September 30,	
 	 	2013	 	2012	
Adjusted EBITDA	 	$	380,770	
 	 	$	290,176	
 	
Interest expense, net	 	(58,784	)	 	(33,836	)	
Provision for income taxes	 	(36,160	)	 	(37,487	)	
Allowance for doubtful accounts	 	5,281	
 	 	809	
 	
Amortization of deferred financing costs and debt discount	 	2,539	
 	 	1,173	
 	
Change in environmental liability estimates	 	(2,417	)	 	(3,553	)	
Deferred income taxes	 	272	
 	 	(494	)	
Stock-based compensation	 	6,389	
 	 	5,235	
 	
Excess tax benefit of stock-based compensation	 	(1,589	)	 	(1,786	)	
Income tax benefits related to stock option exercises	 	1,579	
 	 	1,776	
 	
Prepayment penalty on early extinguishment of debt	 	—	
 	 	(21,044	)	
Environmental expenditures	 	(15,928	)	 	(7,833	)	
Changes in assets and liabilities, net of acquisitions:	 	 	

Accounts receivable	 	(72,377	)	 	59,881	
 	
Inventories	 	1,710	
 	 	(7,692	)	
Other current assets	 	11,860	
 	 	12,822	
 	
Accounts payable	 	37,257	
 	 	(18,969	)	
Other current and long-term liabilities	 	19,712	
 	 	(6,486	)	
Net cash from operating activities	 	$	280,114	
 	 	$	232,692	

Segment data
Performance of our segments is evaluated on several factors of which the primary financial measure is Adjusted EBITDA. The following tables set forth certain operating data associated with our results of operations and summarize Adjusted EBITDA contribution by reportable segment for the three and nine months ended September 30, 2013 and 2012 (in thousands). We consider the Adjusted EBITDA contribution from each segment to include revenue attributable to each segment less operating expenses, which include cost of revenues and selling, general and administrative expenses. Revenue attributable to each segment is generally external or direct revenue from third party customers. Certain income or expenses of a non-recurring or unusual nature are not included in the segment Adjusted EBITDA contribution. Prior year amounts presented have been recast to reflect the changes made to our segment presentation in the first quarter of 2013 as described in Note 17, "Segment Reporting." This table and subsequent discussions should be read in conjunction with Item 6, "Selected Financial Data," and Item 8, "Financial Statements and Supplementary Data," and in particular Note 18, "Segment Reporting," included in our Annual Report on Form 10-K for the year ended December 31, 2012 and Item 1, "Unaudited Financial Statements" and in particular Note 17, "Segment Reporting," in this report.

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Three months ended September 30, 2013 versus the three months ended September 30, 2012 

 	 	Summary of Operations (in thousands)	
 	 	For the Three Months Ended September 30,	
 	 	2013	 	2012	 	$
Change	 	%
Change	
Third Party Revenues:	 	 	

 	 	 	
 	
Technical Services	 	$	269,465	
 	 	$	247,355	
 	 	$	22,110	
 	 	8.9	 %	
Oil Re-refining and Recycling	 	151,565	
 	 	—	
 	 	151,565	
 	 	—	
 	
SK Environmental Services	 	150,535	
 	 	—	
 	 	150,535	
 	 	—	
 	
Industrial and Field Services	 	227,754	
 	 	203,371	
 	 	24,383	
 	 	12.0	
 	
Oil and Gas Field Services	 	107,627	
 	 	82,812	
 	 	24,815	
 	 	30.0	
 	
Corporate Items	 	589	
 	 	268	
 	 	321	
 	 	119.8	
 	
Total	 	$	907,535	
 	 	$	533,806	
 	 	$	373,729	
 	 	70.0	 %	
 	 	 	 	 	 	 	 	 	
Direct Revenues:	 	 	

 	 	 	
 	
Technical Services	 	$	305,835	
 	 	$	254,971	
 	 	$	50,864	
 	 	19.9	 %	
Oil Re-refining and Recycling	 	86,647	
 	 	—	
 	 	86,647	
 	 	—	
 	
SK Environmental Services	 	187,051	
 	 	—	
 	 	187,051	
 	 	—	
 	
Industrial and Field Services	 	220,505	
 	 	194,594	
 	 	25,911	
 	 	13.3	
 	
Oil and Gas Field Services	 	107,831	
 	 	84,640	
 	 	23,191	
 	 	27.4	
 	
Corporate Items	 	(334	)	 	(399	)	 	65	
 	 	(16.3	)	
Total	 	907,535	
 	 	533,806	
 	 	373,729	
 	 	70.0	

Cost of Revenues (exclusive of items shown separately) (1):	 	 	

 	 	 	
 	
Technical Services	 	204,425	
 	 	169,484	
 	 	34,941	
 	 	20.6	
 	
Oil Re-refining and Recycling	 	63,282	

 	 	63,282	
 	 	—	
 	
SK Environmental Services	 	138,779	
 	 	—	
 	 	138,779	
 	 	—	
 	
Industrial and Field Services	 	157,692	
 	 	138,105	
 	 	19,587	
 	 	14.2	
 	
Oil and Gas Field Services	 	79,961	
 	 	63,725	
 	 	16,236	
 	 	25.5	
 	
Corporate Items	 	2,980	
 	 	1,626	
 	 	1,354	
 	 	83.3	
 	
Total	 	647,119	
 	 	372,940	
 	 	274,179	
 	 	73.5	

Selling, General & Administrative Expenses:	 	 	

 	 	 	
 	
Technical Services	 	22,561	
 	 	17,246	
 	 	5,315	
 	 	30.8	
 	
Oil Re-refining and Recycling	 	4,473	
 	 	—	
 	 	4,473	
 	 	—	
 	
SK Environmental Services	 	25,321	
 	 	—	
 	 	25,321	
 	 	—	
 	
Industrial and Field Services	 	14,717	
 	 	13,211	
 	 	1,506	
 	 	11.4	
 	
Oil and Gas Field Services	 	7,016	
 	 	6,783	
 	 	233	
 	 	3.4	
 	
Corporate Items	 	40,376	
 	 	23,099	
 	 	17,277	
 	 	74.8	
 	
Total	 	114,464	
 	 	60,339	
 	 	54,125	
 	 	89.7	

Adjusted EBITDA:	 	 	

 	 	 	
 	
Technical Services	 	78,849	
 	 	68,241	
 	 	10,608	
 	 	15.5	
 	
Oil Re-refining and Recycling	 	18,892	
 	 	—	
 	 	18,892	
 	 	—	
 	
SK Environmental Services	 	22,951	
 	 	—	
 	 	22,951	
 	 	—	
 	
Industrial and Field Services	 	48,096	
 	 	43,278	
 	 	4,818	
 	 	11.1	
 	
Oil and Gas Field Services	 	20,854	
 	 	14,132	
 	 	6,722	
 	 	47.6	
 	
Corporate Items	 	(43,690	)	 	(25,124	)	 	(18,566	)	 	73.9	
 	
Total	 	$	145,952	
 	 	$	100,527	
 	 	$	45,425	
 	 	45.2	 %	
______________________
(1)                     Items shown separately consist of (i) accretion of environmental liabilities and (ii) depreciation and amortization.

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Direct Revenues 
Technical Services revenues increased 19.9%, or $50.9 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to our acquisition of Safety-Kleen delivering high utilization and volumes into our disposal network, as well as our integration of a portion of the Safety-Kleen business into our Technical Services segment. The utilization rate at our incinerators was 93.5% for the three months ended September 30, 2013, compared with 91.3% in the comparable period of 2012, and our landfill volumes increased by approximately 7% year-over-year.
The increases in Oil Re-refining and Recycling and SK Environmental Services revenues for the three months ended September 30, 2013 were due to our acquisition of Safety-Kleen in December 2012.
Industrial and Field Services revenues increased 13.3%, or $25.9 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to positive contributions from several acquisitions resulting in increases in our turnaround services business and our field services business. This growth was tempered by a loss of a contract and softness in our lodging business. Our lodging business was impacted by the delay in completing the construction of the Ruth Lake camp due to flooding and weather issues.
Oil and Gas Field Services revenues increased 27.4%, or $23.2 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to an increase in our seismic business in Western Canada, continued expansion in the U.S., and flood and oil-spill cleanup work.
There are many factors which have impacted, and continue to impact, our revenues. These factors include, but are not limited to: the level of emergency response projects, the general conditions of the oil and gas industries, competitive industry pricing, and the effects of fuel prices on our fuel recovery fees. 
Cost of Revenues 
Technical Services cost of revenues increased 20.6%, or $34.9 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to increases in salary and labor expenses ($10.4 million), materials and supplies ($8.0 million), outside transportation ($5.9 million), outside disposal and rail costs ($4.1 million), subcontractor and temporary fees ($3.3 million) and vehicle expense and equipment repair costs ($2.2 million), offset partially by a reduction in materials for reclaim ($5.2 million).  These increases relate partially to the integration of a portion of the Safety-Kleen business into the Technical Services segment.
The increases in Oil Re-refining and Recycling and SK Environmental Services cost of revenues for the three months ended September 30, 2013 were due to our acquisition of Safety-Kleen in December 2012.
Industrial and Field Services cost of revenues increased 14.2%, or $19.6 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to increased salary and labor cost and materials and supplies costs associated with our acquisitions during 2012.  
Oil and Gas Field Services cost of revenues increased 25.5%, or $16.2 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to increases in salary and labor costs, subcontractor costs and materials and supplies costs related to the flood cleanup work in Western Canada and the large seismic project work and cleanup work in North Western Canada.
 We believe that our ability to manage operating costs is important in our ability to remain price competitive. We continue to upgrade the quality and efficiency of our waste treatment services through the development of new technology, continued modifications and upgrades at our facilities and implementation of strategic sourcing initiatives. We plan to continue to focus on achieving cost savings relating to purchased goods and services through a strategic sourcing initiative. No assurance can be given that our efforts to reduce future operating expenses will be successful. 
Selling, General and Administrative Expenses 
Technical Services selling, general and administrative expenses increased 30.8%, or $5.3 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to year-over-year changes in environmental liabilities estimates and increased compensation costs.
The increases in Oil Re-refining and Recycling and SK Environmental Services selling, general and administrative expenses for the three months ended September 30, 2013 were due to our acquisition of Safety-Kleen in December 2012.
Industrial and Field Services selling, general and administrative expenses increased 11.4%, or $1.5 million, in the three months ended September 30, 2013 from the comparable period in 2012 primarily due to increased compensation costs. 

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Oil and Gas Field Services selling, general and administrative expenses increased 3.4%, or $0.2 million, for the three months ended September 30, 2013, from the comparable period in 2012. The increase was primarily due to increased compensation costs. 
Corporate Items selling, general and administrative expenses increased 74.8%, or $17.3 million, for the three months ended September 30, 2013, as compared to the same period in 2012 primarily due to our acquisition of Safety-Kleen in December 2012 resulting in increases in compensation costs, computer expenses, travel costs, professional fees and rent expense. We also incurred a year-over-year increase in severance costs of $0.8 million, and an increase in professional fees related to acquisitions of $0.9 million. These increases were partially offset by a net reduction in year-over-year changes in environmental liability estimates.
Depreciation and Amortization

 	 	 	 	 	 	 	 	 	
 	 	For the Three Months Ended	
 	 	September 30,	
 	 	2013	 	2012	
Depreciation of fixed assets	 	$	54,995	
 	 	$	31,636	
 	
Landfill and other amortization	 	14,435	
 	 	9,664	
 	
Total depreciation and amortization	 	$	69,430	
 	 	$	41,300	

Depreciation and amortization  increased 68.1%, or $28.1 million, in the third quarter of 2013 compared to the same period in 2012. Depreciation of fixed assets increased primarily due to acquisitions and other increased capital expenditures in recent periods. Landfill and other amortization increased primarily due to the increase in other intangibles resulting from recent acquisitions.
Interest Expense, Net

 	 	 	 	 	 	 	 	 	
 	 	For the Three Months Ended	
 	 	September 30,	
 	 	2013	 	2012	
Interest expense	 	$	19,422	
 	 	$	11,817	
 	
Interest income	 	(96	)	 	(221	)	
Interest expense, net	 	$	19,326	
 	 	$	11,596	
 	
Interest expense, net increased $7.7 million in the third quarter of 2013 compared to the same period in 2012. The increase in interest expense was primarily due to the issuance of $800.0 million of 5.25% senior unsecured notes in July 2012 and $600.0 million of 5.125% senior unsecured notes in December 2012, which was partially offset by our redemption and repurchase during the third quarter of 2012 of $520.0 million of previously outstanding 7.625% senior secured notes. The transactions resulted in an additional principal amount of notes outstanding during 2012 than for the comparable prior period, but at a more favorable interest rate.

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Nine months ended September 30, 2013 versus the nine months ended September 30, 2012 

 	 	Summary of Operations (in thousands)	
 	 	For the Nine Months Ended September 30,	
 	 	2013	 	2012	 	$
Change	 	%
Change	
 	 	 	 	 	 	 	 	 	
Third Party Revenues:	 	 	

 	 	 	
 	
Technical Services	 	$	759,666	
 	 	$	712,313	
 	 	$	47,353	
 	 	6.6	 %	
Oil Re-refining and Recycling	 	438,191	
 	 	—	
 	 	438,191	
 	 	—	
 	
SK Environmental Services	 	453,325	
 	 	—	
 	 	453,325	
 	 	—	
 	
Industrial and Field Services	 	693,667	
 	 	608,768	
 	 	84,899	
 	 	13.9	
 	
Oil and Gas Field Services	 	294,183	
 	 	306,566	
 	 	(12,383	)	 	(4.0	)	
Corporate Items (1)	 	(8,806	)	 	1,299	
 	 	(10,105	)	 	(777.9	)	
Total	 	$	2,630,226	
 	 	$	1,628,946	
 	 	$	1,001,280	
 	 	61.5	 %	
 	 	 	 	 	 	 	 	 	
Direct Revenues:	 	 	

 	 	 	
 	
Technical Services	 	$	848,435	
 	 	$	738,353	
 	 	$	110,082	
 	 	14.9	 %	
Oil Re-refining and Recycling	 	252,138	
 	 	—	
 	 	252,138	
 	 	—	
 	
SK Environmental Services	 	579,850	
 	 	—	
 	 	579,850	
 	 	—	
 	
Industrial and Field Services	 	661,535	
 	 	577,570	
 	 	83,965	
 	 	14.5	
 	
Oil and Gas Field Services	 	300,183	
 	 	313,186	
 	 	(13,003	)	 	(4.2	)	
Corporate Items (1)	 	(11,915	)	 	(163	)	 	(11,752	)	 	7,209.8	
 	
Total	 	2,630,226	
 	 	1,628,946	
 	 	1,001,280	
 	 	61.5	

Cost of Revenues (exclusive of items shown separately) (2):	 	 	

 	 	 	
 	
Technical Services	 	575,190	
 	 	489,602	
 	 	85,588	
 	 	17.5	
 	
Oil Re-refining and Recycling	 	189,870	
 	 	—	
 	 	189,870	
 	 	—	
 	
SK Environmental Services	 	415,467	
 	 	—	
 	 	415,467	
 	 	—	
 	
Industrial and Field Services	 	476,816	
 	 	417,012	
 	 	59,804	
 	 	14.3	
 	
Oil and Gas Field Services	 	226,073	
 	 	227,648	
 	 	(1,575	)	 	(0.7	)	
Corporate Items (1)	 	14,053	
 	 	6,616	
 	 	7,437	
 	 	112.4	
 	
Total	 	1,897,469	
 	 	1,140,878	
 	 	756,591	
 	 	66.3	

Selling, General & Administrative Expenses:	 	 	

 	 	 	
 	
Technical Services	 	64,961	
 	 	60,078	
 	 	4,883	
 	 	8.1	
 	
Oil Re-refining and Recycling	 	15,407	
 	 	—	
 	 	15,407	
 	 	—	
 	
SK Environmental Services	 	80,221	
 	 	—	
 	 	80,221	
 	 	—	
 	
Industrial and Field Services	 	46,081	
 	 	42,644	
 	 	3,437	
 	 	8.1	
 	
Oil and Gas Field Services	 	21,738	
 	 	23,239	
 	 	(1,501	)	 	(6.5	)	
Corporate Items	 	137,138	
 	 	71,931	
 	 	65,207	
 	 	90.7	
 	
Total	 	365,546	
 	 	197,892	
 	 	167,654	
 	 	84.7	

Adjusted EBITDA:	 	 	

 	 	 	
 	
Technical Services	 	208,284	
 	 	188,673	
 	 	19,611	
 	 	10.4	
 	
Oil Re-refining and Recycling	 	46,861	
 	 	—	
 	 	46,861	
 	 	—	
 	
SK Environmental Services	 	84,162	
 	 	—	
 	 	84,162	
 	 	—	
 	
Industrial and Field Services	 	138,638	
 	 	117,914	
 	 	20,724	
 	 	17.6	
 	
Oil and Gas Field Services	 	52,372	
 	 	62,299	
 	 	(9,927	)	 	(15.9	)	
Corporate Items	 	(149,547	)	 	(78,710	)	 	(70,837	)	 	90.0	
 	
Total	 	$	380,770	
 	 	$	290,176	
 	 	$	90,594	
 	 	31.2	 %	
_______________________

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(1)                     Corporate Items revenues and costs of revenues for the nine months ended September 30, 2013 include one-time, non-cash reductions and increases of approximately $10.2 million and $3.4 million, respectively, due to the impact of fair value acquisition accounting adjustments on Safety-Kleen's historical deferred revenue, inventory and deferred cost balances at December 28, 2012.
(2)                     Items shown separately consist of (i) accretion of environmental liabilities and (ii) depreciation and amortization.
Direct Revenues 
Technical Services revenues increased 14.9%, or $110.1 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to growth in our TSDF network due to higher drum volumes, an increase in our wastewater treatment volumes, contributions from our remediation projects business, and an increase due to the integration of a portion of the Safety-Kleen business into our Technical Services segment. The utilization rate at our incinerators was 91.6% for the nine months ended September 30, 2013, compared with 90.4% in the comparable period of 2012, and our landfill volumes increased by approximately 6% year-over-year.
The increases in Oil Re-refining and Recycling and SK Environmental Services revenues for the nine months ended September 30, 2013 were due to our acquisition of Safety-Kleen in December 2012.
Industrial and Field Services revenues increased 14.5%, or $84.0 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to positive contributions from several acquisitions resulting in increases in our turnaround services business and our field services business.
Oil and Gas Field Services revenues decreased 4.2%, or $13.0 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to the lower rig count in Western Canada that resulted in a reduction in surface rental activity and decreased seismic activities.
Corporate Items revenues decreased $11.8 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to inclusion of the impact of the fair value acquisition accounting adjustment on Safety-Kleen's historical deferred revenue balance at December 28, 2012 ($10.2 million).
There are many factors which have impacted, and continue to impact, our revenues. These factors include, but are not limited to: the level of emergency response projects, the general conditions of the oil and gas industries, competitive industry pricing, and the effects of fuel prices on our fuel recovery fees. 
Cost of Revenues 
Technical Services cost of revenues increased 17.5%, or $85.6 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to increases in salary and labor expenses ($29.9 million), outside transportation ($16.6 million), materials and supplies ($13.6 million), outside disposal and rail costs ($10.0 million), subcontractor and temporary fees ($7.1 million), vehicle expenses and equipment repair costs ($6.5 million), and utilities costs ($5.1 million), offset partially by a reduction in materials for reclaim ($21.4 million).  These increases relate partially to the integration of a portion of the Safety-Kleen business into the Technical Services segment.
The increases in Oil Re-refining and Recycling and SK Environmental Services cost of revenues for the nine months ended September 30, 2013 were due to our acquisition of Safety-Kleen in December 2012.
Industrial and Field Services cost of revenues increased 14.3%, or $59.8 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to increased salary, labor and travel expenses associated with acquisitions during 2012.  
Oil and Gas Field Services cost of revenues decreased 0.7%, or $1.6 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily related to reductions in surface rentals and seismic activities resulting in a reduction in lease operator costs offset partially by increases in vehicle expense costs and salary and labor costs.
Corporate Items cost of revenues increased $7.4 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to the impact of the acquisition accounting adjustments on Safety-Kleen's historical inventory and deferred cost balances at December 28, 2012 ($3.4 million) as well as an increase in general insurance costs.
 We believe that our ability to manage operating costs is important in our ability to remain price competitive. We continue to upgrade the quality and efficiency of our waste treatment services through the development of new technology, continued modifications and upgrades at our facilities and implementation of strategic sourcing initiatives. We plan to continue to focus on achieving cost savings relating to purchased goods and services through a strategic sourcing initiative. No assurance can be given that our efforts to reduce future operating expenses will be successful. 

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Selling, General and Administrative Expenses 
Technical Services selling, general and administrative expenses increased 8.1%, or $4.9 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to year-over-year changes in environmental liabilities estimates and increased compensation costs.
The increases in Oil Re-refining and Recycling and SK Environmental Services selling, general and administrative expenses for the nine months ended September 30, 2013 were due to our acquisition of Safety-Kleen in December 2012.
Industrial and Field Services selling, general and administrative expenses increased 8.1%, or $3.4 million, in the nine months ended September 30, 2013 from the comparable period in 2012 primarily due to increased compensation costs. 
Oil and Gas Field Services selling, general and administrative expenses decreased 6.5%, or $1.5 million, for the nine months ended September 30, 2013, from the comparable period in 2012. The decrease was primarily due to decreases in compensation costs. 
Corporate Items selling, general and administrative expenses increased 90.7%, or $65.2 million, for the nine months ended September 30, 2013, as compared to the same period in 2012 primarily due to our acquisition of Safety-Kleen in December 2012 resulting in increases in compensation costs, computer expenses, professional fees and rent expense. We also incurred a year-over-year increase in severance costs of $6.3 million and an increase in professional fees related to acquisitions of $6.2 million.
Depreciation and Amortization

 	 	 	 	 	 	 	 	 	
 	 	For the Nine Months Ended	
 	 	September 30,	
 	 	2013	 	2012	
Depreciation of fixed assets	 	$	157,900	
 	 	$	92,346	
 	
Landfill and other amortization	 	39,004	
 	 	24,448	
 	
Total depreciation and amortization	 	$	196,904	
 	 	$	116,794	

Depreciation and amortization increased 68.6%, or $80.1 million, in the first nine months of 2013 compared to the same period in 2012. Depreciation of fixed assets increased primarily due to acquisitions and other increased capital expenditures in recent periods. Landfill and other amortization increased primarily due to the increase in other intangibles resulting from recent acquisitions.
Interest Expense, Net

 	 	 	 	 	 	 	 	 	
 	 	For the Nine Months Ended	
 	 	September 30,	
 	 	2013	 	2012	
Interest expense	 	$	59,146	
 	 	$	34,459	
 	
Interest income	 	(362	)	 	(623	)	
Interest expense, net	 	$	58,784	
 	 	$	33,836	
 	
Interest expense, net increased $24.9 million in the first nine months of 2013 compared to the same period in 2012. The increase in interest expense was primarily due to the issuance of $800.0 million of 5.25% senior unsecured notes in July 2012 and $600.0 million of 5.125% senior unsecured notes in December 2012, which was partially offset by our redemption and repurchase during the third quarter of 2012 of $520.0 million of previously outstanding 7.625% senior secured notes. The transactions resulted in an additional principal amount of notes outstanding during 2012 than for the comparable prior period, but at a more favorable interest rate.
Income Taxes 
Our effective tax rate for the three and nine months ended September 30, 2013 was 34.7% and 34.5%, respectively, compared to 33.8% and 35.6% for the same periods in 2012.  The increase in the effective tax rate for the three months ended September 30, 2013 was primarily attributable to a small decline in the year-to-date rate recorded during the three months ended September 30, 2012. The decrease in the effective tax rate for the nine months ended September 30, 2013 was primarily attributable to lower accrued interest and penalties related to unrecognized tax benefits in 2013 as compared to the same period for 2012.

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Income tax expense for the three months ended September 30, 2013 increased $12.5 million to $18.8 million from $6.3 million for the comparable period in 2012. Income tax expense for the nine months ended September 30, 2013 decreased $1.3 million to $36.2 million from $37.5 million for the comparable period in 2012. The increased tax expense for the three months ended September 30, 2013 was primarily attributable to higher income before taxes in 2013 as compared to the same period for 2012 which included the $26.4 million loss on early extinguishment of debt. The decreased tax expense for the nine months ended September 30, 2013 was primarily attributable to the lower accrued interest and penalties related to unrecognized tax benefits in 2013 as compared to the same period in 2012.
A valuation allowance is required to be established when, based on an evaluation of available evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. At September 30, 2013 and December 31, 2012, we had a remaining valuation allowance of $25.6 million. The allowance as of September 30, 2013 and December 31, 2012 consisted of $17.6 million of foreign tax credits, $1.4 million of state net operating loss carryforwards and $6.6 million of foreign net operating loss carryforwards.  
Our accounting policy is to recognize interest and penalties related to income tax matters as a component of income tax expense. The liability for unrecognized tax benefits and related reserves as of September 30, 2013 and December 31, 2012, included accrued interest of $1.6 million and $1.4 million, respectively.  Tax expense for the three and nine months ended September 30, 2013 included interest of $0.1 million and $0.2 million, respectively. Tax expense for the three and nine months ended September 30, 2012 included interest of $0.7 million and $1.4 million, respectively.
Liquidity and Capital Resources 
Cash and Cash Equivalents 
During the nine months ended September 30, 2013, cash and cash equivalents increased $18.8 million.
We intend to use our existing cash and cash equivalents, marketable securities and cash flow from operations to provide for our working capital needs, to fund capital expenditures and for potential acquisitions. We anticipate that our cash flow provided by operating activities will provide the necessary funds on a short- and long-term basis to meet operating cash requirements.  
At September 30, 2013, cash and cash equivalents totaled $248.6 million, compared to $229.8 million at December 31, 2012. At September 30, 2013, cash and cash equivalents held by foreign subsidiaries totaled $59.7 million and were readily convertible into other foreign currencies including U.S. dollars. At September 30, 2013, the cash and cash equivalent balances for our U.S. operations were $188.9 million. Our U.S. operations had net operating cash from operations of $138.6 million for the nine months ended September 30, 2013. Additionally, we have available a $400.0 million revolving credit facility of which $262.3 million was available to borrow at September 30, 2013. Based on the above and on our current plans, we believe that our U.S. operations have adequate financial resources to satisfy their liquidity needs without being required to repatriate earnings from foreign subsidiaries. Accordingly, although repatriation to the U.S. of foreign earnings would generally be subject to U.S. income taxation, net of any available foreign tax credits, we have not recorded any deferred tax liability related to such repatriation since we intend to permanently reinvest foreign earnings outside the U.S.
We had accrued environmental liabilities as of September 30, 2013 of approximately $219.6 million, substantially all of which we assumed in connection with our acquisition of the CSD assets in September 2002, Teris LLC in 2006, one of the two solvent recycling facilities we purchased from Safety-Kleen Systems, Inc. in 2008, the remaining Safety-Kleen facilities acquired as part of our acquisition of Safety-Kleen in 2012 and our acquisition of Evergreen in September 2013. We anticipate our environmental liabilities will be payable over many years and that cash flow from operations will generally be sufficient to fund the payment of such liabilities when required. However, events not anticipated (such as future changes in environmental laws and regulations) could require that such payments be made earlier or in greater amounts than currently anticipated, which could adversely affect our results of operations, cash flow and financial condition. 
We assess our liquidity in terms of our ability to generate cash to fund our operating, investing and financing activities. Our primary ongoing cash requirements will be to fund operations, capital expenditures, interest payments and investments in line with our business strategy. We believe our future operating cash flows will be sufficient to meet our future operating and investing cash needs. Furthermore, the existing cash balances and the availability of additional borrowings under our revolving credit facility provide additional potential sources of liquidity should they be required.

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Cash Flows for the nine months ended September 30, 2013  
Cash from operating activities in the first nine months of 2013 was $280.1 million, an increase of 20.4%, or $47.4 million, compared with cash from operating activities in the first nine months of 2012. The change was primarily the result of a net decrease in net working capital items.
Cash used for investing activities in the first nine months of 2013 was $267.8 million, an increase of 18.3%, or $41.4 million, compared with cash used for investing activities in the first nine months of 2012.  This increase was due primarily to an increase in capital expenditures of $77.3 million partially offset by a decrease in acquisitions (net of cash acquired) of $33.0 million.  
Cash generated by financing activities in the first nine months of 2013 was $9.7 million, compared with cash generated for financing activities of $256.1 million in the first nine months of 2012. The change was primarily the result of the issuance of $800.0 million aggregate principal amount of 5.25% senior unsecured notes and the $520.0 million redemption and repurchase of the 7.625% senior secured notes during the third quarter of 2012.  
Cash Flows for the nine months ended September 30, 2012
     Cash from operating activities in the first nine months of 2012 was $232.7 million, an increase of 53.8%, or $81.4 million, compared with cash from operating activities in the first nine months of 2011. The change was primarily the result of increased depreciation and amortization primarily due to acquisition and other increased capital expenditures in recent periods and a net increase in working capital items.
Cash used for investing activities in the first nine months of 2012 was $226.4 million, a decrease of 49.2% or $219.2 million, compared with cash used for investing activities in the first nine months of 2011.  The change was due primarily from lower year-over-year costs associated with acquisitions offset partially by increases in additions to property, plant and equipment. 
Cash used for financing activities in the first nine months of 2012 was $256.1 million, compared with cash from financing activities of $247.9 million in the first nine months of 2011. The change was primarily the result of the issuance of $800.0 million aggregate principal amount of 5.25% senior unsecured notes and the $520.0 million redemption and repurchase of 7.625% senior secured notes during the third quarter of 2012.
Financing Arrangements 
The financing arrangements and principal terms of our $800.0 million principal amount of 5.25% senior unsecured notes due 2020 and $600.0 million principal amount of 5.125% senior unsecured notes due 2021 which were outstanding at September 30, 2013, and our amended $400.0 million revolving credit facility, are discussed further in Note 11, “Financing Arrangements,” in our Annual Report on Form 10-K for the year ended December 31, 2012.
 As of September 30, 2013, we were in compliance with the covenants of our debt agreements, and we believe it is reasonably likely that we will continue to meet such covenants. 
Liquidity Impacts of Uncertain Tax Positions 
As discussed in Note 12, “Income Taxes,” to our financial statements included in Item 1 of this report, we have recorded as of September 30, 2013, $3.9 million of unrecognized tax benefits and related reserves and $1.6 million of potential interest. These liabilities are classified as “deferred taxes, unrecognized tax benefits and other long-term liabilities” in our consolidated balance sheets. We are not able to reasonably estimate when we would make any cash payments to settle these liabilities. However, we believe no material cash payments will be required in the next 12 months.
Auction Rate Securities 
As of September 30, 2013, our long-term investments included $4.4 million of available for sale auction rate securities. With the liquidity issues experienced in global credit and capital markets, these auction rate securities have experienced multiple failed auctions and as a result are currently not liquid. The auction rate securities are secured by student loans substantially insured by the Federal Family Education Loan Program, maintain the highest credit rating of AAA, and continue to pay interest according to their stated terms with interest rates resetting generally every 28 days. 
We believe we have sufficient liquidity to fund operations and do not plan to sell our auction rate securities in the foreseeable future at an amount below the original purchase value.  In the unlikely event that we need to access the funds that are in an illiquid state, we may not be able to do so without a possible loss of principal until a future auction for these investments is successful, another secondary market evolves for these securities, they are redeemed by the issuer, or they mature. If we were unable to sell these securities in the market or they are not redeemed, we could be required to hold them to maturity. These securities are currently reflected at their fair value utilizing a discounted cash flow analysis or significant other observable inputs.

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As of September 30, 2013, we have recorded an unrealized pre-tax loss of $0.3 million, which we assess as temporary. We will continue to monitor and evaluate these investments on an ongoing basis for other than temporary impairment and record an adjustment to earnings if and when appropriate.
ITEM 3.                            QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 
In the normal course of business, we are exposed to market risks, including changes in interest rates, certain commodity prices, and certain foreign currency rates, primarily the Canadian dollar. Our philosophy in managing interest rate risk is to borrow at fixed rates for longer time horizons to finance non-current assets and to borrow (to the extent, if any, required) at variable rates for working capital and other short-term needs. We therefore have not entered into derivative or hedging transactions (other than with respect to commodity derivatives), nor have we entered into transactions to finance off-balance sheet debt. The following table provides information regarding our fixed rate borrowings at September 30, 2013 (in thousands): 

 	 	Three Months Remaining	 	 	 	 	 	 	 	 	 	 	 	 	
Scheduled Maturity Dates	 	2013	 	2014	 	2015	 	2016	 	2017	 	Thereafter	 	Total	
Senior unsecured notes due 2020	 	$	—	
 	 	$	—	
 	 	$	—	
 	 	$	—	
 	 	$	—	
 	 	$	800,000	
 	 	$	800,000	
 	
Senior unsecured notes due 2021	 	—	
 	 	—	
 	 	—	
 	 	—	
 	 	—	
 	 	600,000	
 	 	600,000	
 	
Capital lease obligations	 	1,035	
 	 	2,261	
 	 	346	
 	 	—	
 	 	—	
 	 	—	
 	 	3,642	
 	
 	 	$	1,035	
 	 	$	2,261	
 	 	$	346	
 	 	$	—	
 	 	$	—	
 	 	$	1,400,000	
 	 	$	1,403,642	
 	
Weighted average interest rate on fixed rate borrowings	 	5.2	%	 	5.2	%	 	5.2	%	 	 	 	 	 	5.2	%	 	 	

In addition to the fixed rate borrowings described in the above table, we had at September 30, 2013 variable rate instruments that included a revolving credit facility (as amended and restated on January 17, 2013) with maximum borrowings of up to $400.0 million (with a $325.0 million sub-limit for letters of credit). Commencing in 2013, we began remitting interest payments in the amount of $21.0 million each related to the $800.0 million senior unsecured notes payable semi-annually on February 1 and August 1 of each year, and began remitting interest payments in the amount of $15.4 million each related to the $600.0 million senior unsecured notes payable semi-annually on June 1 and December 1 of each year. 
We view our investment in our foreign subsidiaries as long-term; thus, we have not entered into any hedging transactions between any two foreign currencies or between any of the foreign currencies and the U.S. dollar. During 2013, the Canadian subsidiaries transacted approximately 6.4% of their business in U.S. dollars and at any period end have cash on deposit in U.S. dollars and outstanding U.S. dollar accounts receivable related to these transactions. These cash and receivable accounts are vulnerable to foreign currency translation gains or losses. Exchange rate movements also affect the translation of Canadian generated profits and losses into U.S. dollars. Had the Canadian dollar been 10.0% stronger or weaker against the U.S. dollar, we would have reported increased or decreased net income of $0.1 million and $1.0 million for the three months ended September 30, 2013 and 2012, respectively.  Had the Canadian dollar been 10.0% stronger or weaker against the U.S. dollar, we would have reported increased or decreased net income of $1.4 million and $2.3 million for the nine months ended September 30, 2013 and 2012, respectively. 
At September 30, 2013, $4.4 million of our noncurrent investments were auction rate securities. While we are uncertain as to when the liquidity issues relating to these investments will improve, we believe these issues will not materially impact our ability to fund our working capital needs, capital expenditures, or other business requirements. 
In connection with the operations of our Technical Services, SK Environmental Services, Industrial and Field Services and Oil and Gas Field Services segments, we are subject to minimal market risk arising from purchases of commodities since no significant amount of commodities are used in the treatment of hazardous waste or providing energy and industrial services. In connection with the operations of our Oil Re-refining and Recycling segment, which we acquired in December 2012 as part of our acquisition of Safety-Kleen, we are exposed to market risk from changes in certain oil and oil derivative commodity prices and indices, specifically the ICIS-LOR rate and 6-oil index. Safety-Kleen entered into several commodity derivatives during 2012 and 2013 which are comprised of cashless collar contracts related to crude oil prices. Pursuant to each such contract, Safety-Kleen sold a call option to a bank and then purchased a put option from the same bank in order to manage against significant fluctuations in crude oil prices, which are closely correlated with the ICIS-LOR rate and the 6-oil index. These commodity derivatives are designed to mitigate, although not eliminate, our exposure to declines in these oil indices below a price floor, but they also will limit our potential upside related to increases in these oil indices above a price cap. We do not believe that our exposure will be material. These commodity derivatives are not classified as hedges and expire at various intervals in 2013 and 2014. For additional information, see Note 4, "Fair Value Measurements," in this report and Note 2, “Significant Accounting

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Policies - Derivative Financial Instruments,” to our consolidated financial statements included in Item 8, “Financial Statements and Supplementary Data,” in our Annual Report on Form 10-K for the year ended December 31, 2012.
ITEM 4.                            CONTROLS AND PROCEDURES
 
Evaluation of Disclosure Controls and Procedures
 
Based on an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, as of the end of the period covered by this Quarterly Report on 10-Q, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) were effective as of September 30, 2013 to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms and is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.
 
Changes in Internal Control over Financial Reporting
     
On December 28, 2012, the Company acquired Safety-Kleen (see Note 3, "Business Combinations,” to the financial statements included in Item 1 of this report). The Company has extended its Section 404 compliance program under the Sarbanes-Oxley Act of 2002 and the applicable rules and regulations under such Act to include Safety-Kleen. The Company will report on its assessment of the effectiveness of internal control over financial reporting for the combined operations at December 31, 2013.

On September 13, 2013, the Company acquired Evergreen (see Note 3, "Business Combinations,” to the financial statements included in Item 1 of this report). The Company has extended its Section 404 compliance program under the Sarbanes-Oxley Act of 2002 and the applicable rules and regulations under such Act to include Evergreen. The Company will report on its assessment of the effectiveness of internal control over financial reporting for the combined operations at December 31, 2013.
Other than as described above, there were no changes in the Company’s internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Exchange Act Rules 13a-15 or 15d-15 that was conducted during the quarter ending September 30, 2013 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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CLEAN HARBORS, INC. AND SUBSIDIARIES

PART II—OTHER INFORMATION

Item 1—Legal Proceedings 
See Note 16, “Commitments and Contingencies,” to the financial statements included in Item 1 of this report, which description is incorporated herein by reference.
Item 1A—Risk Factors 
During the three months ended September 30, 2013, there were no material changes from the risk factors as previously disclosed in Item 1A in the Company's Annual Report on Form 10-K for the year ended December 31, 2012. 
Item 6—Exhibits 

Item No.	 	Description	 	Location	
31.1	 	Rule 13a-14a/15d-14(a) Certification of the CEO Alan S. McKim	 	Filed herewith	
 	 	 	 	 	
31.2	 	Rule 13a-14a/15d-14(a) Certification of the CFO James M. Rutledge	 	 Filed herewith	
 	 	 	 	 	
32	 	Section 1350 Certifications	 	Filed herewith	
 	 	 	 	 	
101	 	Interactive Data Files Pursuant to Rule 405 of Regulation S-T: Financial statements from the quarterly report on Form 10-Q of Clean Harbors, Inc. for the quarter ended September 30, 2013, formatted in XBRL: (i) Consolidated Balance Sheets, (ii) Unaudited Consolidated Statements of Income, (iii) Unaudited Consolidated Statements of Comprehensive Income, (iv) Unaudited Consolidated Statements of Cash Flows, (v) Unaudited Consolidated Statements of Stockholders’ Equity, and (vi) Notes to Unaudited Consolidated Financial Statements.	 	*	
_______________________
 	 	
*	These interactive data files are furnished and deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.	

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CLEAN HARBORS, INC. AND SUBSIDIARIES

SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 	 	 	 	
 	 	CLEAN HARBORS, INC.	
 	 	Registrant	
 	 	 	
 	 	By:	/s/  ALAN S. MCKIM	
 	 	 	Alan S. McKim	
 	 	 	Chairman and Chief Executive Officer	
 	 	 	 	
Date:	November 7, 2013	 	 	
 	 	 	 	
 	 	By:	/s/  JAMES M. RUTLEDGE	
 	 	 	James M. Rutledge	
 	 	 	Vice Chairman, President and Chief Financial Officer	
 	 	 	
Date:	November 7, 2013	 	

47

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Alan S. McKim, certify that:

1.    I have reviewed this Quarterly Report on Form 10-Q of Clean Harbors, Inc.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)    Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

 	 	
 	/s/ Alan S. McKim	
 	Alan S. McKim	
 	Chairman and Chief Executive Officer	

Date: November 7, 2013 

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, James M. Rutledge, certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Clean Harbors, Inc.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)    Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

 	 	
 	/s/ James M. Rutledge	
 	James M. Rutledge	
 	Vice Chairman, President and Chief Financial Officer	

Date: November 7, 2013 

EXHIBIT 32

CLEAN HARBORS, INC. AND SUBSIDIARIES

CERTIFICATION PURSUANT TO
SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES OXLEY ACT OF 2002

Pursuant to 18 U.S.C. §1350, each of the undersigned certifies that, to his knowledge, this Quarterly Report on Form 10-Q for the period ended September 30, 2013 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and the information contained in this report fairly presents, in all material respects, the financial condition and results of operations of Clean Harbors, Inc.

 	 	 	 	
 	 	By:	/s/  ALAN S. MCKIM	
 	 	 	Alan S. McKim	
 	 	 	Chairman and Chief Executive Officer	
 	 	 	 	
Date:	November 7, 2013	 	 	
 	 	 	 	
 	 	By:	/s/  JAMES M. RUTLEDGE	
 	 	 	James M. Rutledge	
 	 	 	Vice Chairman, President and Chief Financial Officer	
 	 	 	
Date:	November 7, 2013