Related-Party Transactions	3 Months Ended
Mar. 31, 2020
Related Party Transactions [Abstract]
Related-Party Transactions	6. Related-Party Transactions *Omnibus Agreement* We are party to an omnibus agreement with Holdings and other related parties. The omnibus agreement provides for, among other things, our right of first offer on Holdings’ and its subsidiaries’ assets used in, and entities primarily engaged in, providing water treatment and other water and environmental services. So long as Holdings controls our General Partner, the omnibus agreement will remain in full force and effect, unless we and Holdings agree to terminate it sooner. If Holdings ceases to control our General Partner, either party may terminate the omnibus agreement. We and Holdings may agree to further amend the omnibus agreement; however, amendments that the General Partner determines are adverse to our unitholders will also require the approval of the Conflicts Committee of our Board of Directors. Prior to January 1, 2020, the omnibus agreement called for Holdings to provide certain general and administrative services, including executive management services and expenses associated with our being a publicly-traded entity (such as audit, tax, and transfer agent fees, among others) in return for a fixed annual fee (adjusted for inflation) that was payable quarterly. This annual fee was $4.5 million in 2019. In an effort to simplify this arrangement so it would be easier for investors to understand, in November 2019, with the approval of the Conflicts Committee of the Board of Directors, we and Holdings agreed to terminate the management fee provisions of the omnibus agreement effective December 31, 2019. Beginning January 1, 2020, the executive management services and other general and administrative expenses that Holdings previously incurred and charged to us via the annual administrative fee are charged directly to us as they are incurred and are now paid directly by the Partnership. Under our current cost structure, we expect these direct expenses to be lower than the annual administrative fee that we previously paid, although we expect to experience more variability in our quarterly general and administrative expense now that we are incurring the expenses directly than when we paid a consistent administrative fee each quarter. For the three months ended March 31, 2019, Holdings charged us an administrative fee of $1.1 million, recorded within general and administrative in the Unaudited Condensed Consolidated Statement of Operations. All of the employees who conduct our business are employed by affiliates of Holdings, although we sometimes refer to these individuals in this report as our employees. We reimburse Holdings for the compensation costs associated with these employees. *Alati Arnegard, LLC* The Partnership provides management services to a 25% owned company, Alati Arnegard, LLC (“Arnegard”), which is part of the Environmental Services segment. We recorded earnings from this investment of less than $0.1 million for each of the three months ended March 31, 2020 and 2019, respectively. These earnings are recorded in other, net in the Unaudited Condensed Consolidated Statements of Operations and equity in earnings of investee in the Unaudited Condensed Consolidated Statements of Cash Flows. Management fee revenue earned from Arnegard is included in revenue in the Unaudited Condensed Consolidated Statements of Operations and totaled $0.2 million for each of the three months ended March 31, 2020 and 2019. Accounts receivable from Arnegard totaled $0.1 million at both March 31, 2020 and December 31, 2019, and is included in trade accounts receivable, net on the Unaudited Condensed Consolidated Balance Sheets. Our investment in Arnegard was $0.4 million at March 31, 2020 and December 31, 2019 and is included in other assets on the Unaudited Condensed Consolidated Balance Sheets. *CF Inspection Management, LLC* We have also entered into a joint venture with CF Inspection, a nationally-qualified woman-owned inspection firm affiliated with one of Holdings’ owners and a Director of our General Partner. CF Inspection allows us to offer various services to clients that require the services of an approved Women’s Business Enterprise (“WBE”), as CF Inspection is certified as a Women’s Business Enterprise by the Supplier Clearinghouse in California and as a National Women’s Business Enterprise by the Women’s Business Enterprise National Council. We own 49% of CF Inspection and Cynthia A. Field, an affiliate of Holdings and a Director of our General Partner, owns the remaining 51% of CF Inspection. For the three months ended March 31, 2020 and 2019, CF Inspection, which is part of the Pipeline Inspection segment, represented approximately 3.8% and 2.6% of our consolidated revenue, respectively.

Related-Party Transactions

3 Months Ended

Mar. 31, 2020

6. Related-Party Transactions

Omnibus Agreement

We are party to an omnibus agreement with Holdings and other related parties. The omnibus agreement provides for, among other things, our right of first offer on Holdings’ and its subsidiaries’ assets used in, and entities primarily engaged in, providing water treatment and other water and environmental services. So long as Holdings controls our General Partner, the omnibus agreement will remain in full force and effect, unless we and Holdings agree to terminate it sooner. If Holdings ceases to control our General Partner, either party may terminate the omnibus agreement. We and Holdings may agree to further amend the omnibus agreement; however, amendments that the General Partner determines are adverse to our unitholders will also require the approval of the Conflicts Committee of our Board of Directors.

Prior to January 1, 2020, the omnibus agreement called for Holdings to provide certain general and administrative services, including executive management services and expenses associated with our being a publicly-traded entity (such as audit, tax, and transfer agent fees, among others) in return for a fixed annual fee (adjusted for inflation) that was payable quarterly. This annual fee was $4.5 million in 2019. In an effort to simplify this arrangement so it would be easier for investors to understand, in November 2019, with the approval of the Conflicts Committee of the Board of Directors, we and Holdings agreed to terminate the management fee provisions of the omnibus agreement effective December 31, 2019. Beginning January 1, 2020, the executive management services and other general and administrative expenses that Holdings previously incurred and charged to us via the annual administrative fee are charged directly to us as they are incurred and are now paid directly by the Partnership. Under our current cost structure, we expect these direct expenses to be lower than the annual administrative fee that we previously paid, although we expect to experience more variability in our quarterly general and administrative expense now that we are incurring the expenses directly than when we paid a consistent administrative fee each quarter. For the three months ended March 31, 2019, Holdings charged us an administrative fee of $1.1 million, recorded within general and administrative in the Unaudited Condensed Consolidated Statement of Operations.

All of the employees who conduct our business are employed by affiliates of Holdings, although we sometimes refer to these individuals in this report as our employees. We reimburse Holdings for the compensation costs associated with these employees.

Alati Arnegard, LLC

The Partnership provides management services to a 25% owned company, Alati Arnegard, LLC (“Arnegard”), which is part of the Environmental Services segment. We recorded earnings from this investment of less than $0.1 million for each of the three months ended March 31, 2020 and 2019, respectively. These earnings are recorded in other, net in the Unaudited Condensed Consolidated Statements of Operations and equity in earnings of investee in the Unaudited Condensed Consolidated Statements of Cash Flows. Management fee revenue earned from Arnegard is included in revenue in the Unaudited Condensed Consolidated Statements of Operations and totaled $0.2 million for each of the three months ended March 31, 2020 and 2019. Accounts receivable from Arnegard totaled $0.1 million at both March 31, 2020 and December 31, 2019, and is included in trade accounts receivable, net on the Unaudited Condensed Consolidated Balance Sheets. Our investment in Arnegard was $0.4 million at March 31, 2020 and December 31, 2019 and is included in other assets on the Unaudited Condensed Consolidated Balance Sheets.

CF Inspection Management, LLC

We have also entered into a joint venture with CF Inspection, a nationally-qualified woman-owned inspection firm affiliated with one of Holdings’ owners and a Director of our General Partner. CF Inspection allows us to offer various services to clients that require the services of an approved Women’s Business Enterprise (“WBE”), as CF Inspection is certified as a Women’s Business Enterprise by the Supplier Clearinghouse in California and as a National Women’s Business Enterprise by the Women’s Business Enterprise National Council. We own 49% of CF Inspection and Cynthia A. Field, an affiliate of Holdings and a Director of our General Partner, owns the remaining 51% of CF Inspection. For the three months ended March 31, 2020 and 2019, CF Inspection, which is part of the Pipeline Inspection segment, represented approximately 3.8% and 2.6% of our consolidated revenue, respectively.