| 2019-10-30 | 10-Q | 10.1.3 | Amendment, dated July 25, 2019, to Amended and Restated Letter Agreement between Loyd Warnock and American Water Works Company, Inc. |
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| 2019-07-31 | 10-Q | 10.6 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Stock Unit Grant Form for Non-Employee Directors. |
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| 2019-07-31 | 10-Q | 10.5 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Restricted Stock Unit Grant (for Brian Chin). |
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| 2019-07-31 | 10-Q | 10.4 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form B (for M. Susan Hardwick). |
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| 2019-07-31 | 10-Q | 10.3 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form A (for M. Susan Hardwick). |
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| 2019-07-31 | 10-Q | 10.2 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Restricted Stock Unit Grant (for M. Susan Hardwick). |
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| 2019-07-31 | 10-Q | 10.1 | Offer Letter for Employment, dated May 1, 2019, between American Water Works Company, Inc. and M. Susan Hardwick. |
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| 2019-05-01 | 10-Q | 10.17.2 | Extension Agreement, dated as of April 9, 2019, among American Water Works Company, Inc., American Water Capital Corp., each of the Lenders party thereto, and Wells Fargo Bank, National Association, as administrative agent. |
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| 2019-05-01 | 10-Q | 10.16 | Second Amendment to the Pension Plan for Employees of American Water Works Company, Inc. and its Designated Subsidiaries, as amended and restated effective January 1, 2016. |
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| 2019-05-01 | 10-Q | 10.15 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form B (for Radhakrishnan Swaminathan). |
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| 2019-05-01 | 10-Q | 10.14 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form B (for Loyd A. Warnock). |
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| 2019-05-01 | 10-Q | 10.13 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form B-3. |
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| 2019-05-01 | 10-Q | 10.12 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form B-2. |
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| 2019-05-01 | 10-Q | 10.11 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form B-1. |
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| 2019-05-01 | 10-Q | 10.10 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form A (for Radhakrishnan Swaminathan). |
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| 2019-05-01 | 10-Q | 10.9 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form A (for Loyd A. Warnock). |
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| 2019-05-01 | 10-Q | 10.8 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form A-3. |
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| 2019-05-01 | 10-Q | 10.7 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form A-2. |
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| 2019-05-01 | 10-Q | 10.6 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Performance Stock Unit Grant Form A-1. |
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| 2019-05-01 | 10-Q | 10.5 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Restricted Stock Unit Grant (for Radhakrishnan Swaminathan). |
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| 2019-05-01 | 10-Q | 10.4 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Restricted Stock Unit Grant (for Loyd A. Warnock). |
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| 2019-05-01 | 10-Q | 10.3 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Restricted Stock Unit Grant (for Chief Executive Officer, Chief Financial Officer and Chief Operating Officer). |
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| 2019-05-01 | 10-Q | 10.2 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Restricted Stock Unit Grant (for certain executives). |
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| 2019-05-01 | 10-Q | 10.1 | American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan 2019 Restricted Stock Unit Grant. |
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| 2019-02-19 | 10-K | 10.9.3 | Nonqualified Savings and Deferred Compensation Plan for Employees of American Water Works Company, Inc. and Its Designated Subsidiaries, as amended and restated, effective as of June 1, 2018 (filed herewith). |
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| 2019-02-19 | 10-K | 10.9.2 | Nonqualified Savings and Deferred Compensation Plan for Employees of American Water Works Company, Inc. and Its Designated Subsidiaries, as amended and restated, effective as of January 1, 2017 (filed herewith). |
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| 2019-02-19 | 10-K | 10.7 | Executive Employment Agreement, dated November 1, 2018, between Radhakrishnan Swaminathan and American Water Works Service Company, Inc. (filed herewith). |
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| 2019-02-19 | 10-K | 10.6.2 | Amendment, dated December 6, 2018, to Letter Agreement between Michael A. Sgro and American Water Works Company, Inc. (filed herewith). |
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