BUSINESS COMBINATIONS 2018 Acquisition On August 31, 2018, Clean Harbors acquired a privately owned company which is expected to expand the environmental services and waste oil capabilities of the Company. The acquired company is included in the Safety-Kleen and Environmental Services segments. In connection with this acquisition, a preliminary goodwill amount of $16.0 million was recognized. On February 23, 2018, the Company completed the acquisition of the U.S. Industrial Cleaning Business of Veolia Environmental Services North America LLC (the "Veolia Business"). The acquisition provides significant scale and industrial services capabilities while increasing the size of the Company's existing U.S. Industrial Services business. The Company acquired the Veolia Business for a purchase price of $120.0 million subject to certain post-closing adjustments. The acquisition was financed with cash on hand. The amount of revenue from the Veolia Business included in the Company's results of operations for the three and nine months ended September 30, 2018 was $44.9 million and $108.8 million , respectively. The amount of pre-tax (loss) income for the three and nine months ended September 30, 2018 was $(0.8) million and $2.5 million , respectively. During the three and nine months ended September 30, 2018 , the Company incurred acquisition-related costs of approximately $0.2 million and $1.2 million , respectively, in connection with the transaction which are included in selling, general and administrative expenses in the consolidated statements of operations. The Veolia Business is included in the Environmental Services segment. The allocation of the Veolia Business purchase price was based on preliminary estimates of the fair value of assets acquired and liabilities assumed as of February 23, 2018, as the Company is continuing to obtain information to complete its valuation of these accounts and the associated tax accounting. The components and preliminary allocation of the purchase price consist of the following amounts (in thousands): At Acquisition Date Measurement Period Adjustments At Acquisition Date As Reported September 30, 2018 Accounts receivable, including unbilled receivables $ 40,773 $ (2,580 ) $ 38,193 Inventories and supplies 1,442 (316 ) 1,126 Prepaid expenses and other current assets 1,005 (219 ) 786 Property, plant and equipment 72,244  72,244 Permits and other intangibles 5,140  5,140 Current liabilities (15,908 ) (2,717 ) (18,625 ) Closure and post-closure liabilities (604 ) 250 (354 ) Total identifiable net assets 104,092 (5,582 ) 98,510 Goodwill 15,908 5,582 21,490 Total purchase price $ 120,000 $  $ 120,000 The weighted average amortization period for the intangibles acquired is 8.2 years . The excess of the total purchase price, which includes the aggregate cash consideration paid in excess of the fair value of the tangible net assets and intangible assets acquired, was recorded as goodwill. The goodwill recognized is attributable to the expected operating synergies and growth potential that the Company expects to realize from this acquisition. Goodwill generated from the acquisition is deductible for tax purposes. Pro forma revenue and earnings amounts on a combined basis as if these acquisitions had been completed on January 1, 2017 are immaterial to the consolidated financial statements of the Company since that date. 2017 Acquisitions On July 14, 2017, the Company acquired Lonestar West Inc. ("Lonestar"), a public company headquartered in Alberta, Canada, for approximately CAD $41.8 million , ( $33.1 million USD), net of cash acquired, which included an equity payout of CAD $0.72 per share to Lonestar shareholders and the assumption of approximately CAD $21.3 million ( $16.8 million USD) in outstanding debt, which Clean Harbors subsequently repaid. The acquisition supports the Company's growth in the daylighting and hydro excavation services markets. In addition to increasing the size of the Company's hydro vac fleet, Lonestar's network of locations provides the Company with direct access to key geographic markets in both the United States and Canada. The acquired company is included in the Environmental Services segment. In connection with this acquisition, a goodwill amount of $ 2.8 million was recognized. On January 31, 2017, the Company acquired a privately held company for a purchase price of approximately $ 11.9 million in cash, net of cash acquired. The acquired business produces and distributes oil products and therefore complements the Company's closed loop model as it relates to the sale of its oil products. The acquired company is included in the Safety-Kleen segment. In connection with this acquisition, a goodwill amount of $ 5.0 million was recognized. Pro forma revenue and earnings amounts on a combined basis as if these acquisitions had been completed on January 1, 2017 are immaterial to the consolidated financial statements of the Company since that date.