42.1%, with an observation date of December 31, 2022. The KPI is designed to reduce groundwater withdrawal for water intensive industrial operations in the Permian Basin by increasing our sales of recycled produced water.
On October 1, 2022, we made an interest payment of $15.3 million on the Notes.
As of November 10, 2022, we had an outstanding balance of $35.0 million on our Credit Facility at an average interest rate of 6.97%. The borrowings are primarily being used to fund our capital program.
Dividends and Distributions
On February 25, 2022, May 6, 2022, and August 3, 2022, our Board of Directors declared quarterly dividends on our Class A common stock of $0.09 per share for first, second, and third quarter 2022, respectively. In conjunction with the dividend payments, distributions of $0.09 per unit per quarter were paid to unit holders of Solaris LLC. Dividends were also paid on unvested shares of restricted stock and RSUs. Dividends accrue on PSUs and are paid upon vesting. The total amount paid on such dividends and distributions was $19.2 million for the nine months ended September 30, 2022.
On November 4, 2022, our Board of Directors declared a dividend on our Class A common stock for the fourth quarter of 2022 of $0.09 per share. The dividend will be paid on November 30, 2022, to holders of record of our Class A common stock as of the close of business on November 17, 2022. In conjunction with the dividend payment, a distribution of $0.09 per unit will be paid to unit holders of Solaris LLC, subject to the same payment and record dates.
Cash Flows from Operating Activities
For the nine months ended September 30, 2022, Net Cash Provided by Operating Activities totaled $77.2 million as compared with $57.2 million for the nine months ended September 30, 2021. The net increase is primarily due to the $75.9 million increase in total revenues offset by increases in direct operating costs and general and administrative expenses. Net Cash Provided by Operating Activities also included reductions of $13.6 million and $6.6 million for the nine months ended September 30, 2022 and 2021, respectively, associated with changes in working capital items. Changes in working capital items adjust for the timing of receipts and payment of actual cash. The reductions in working capital are generally linked to increases in accounts receivable from increased revenues, particularly in our water sourcing services, and overall slower payment by customers as they manage their working capital in a rising cost environment.
Cash Flows from Investing Activities
For the nine months ended September 30, 2022, Net Cash Used in Investing Activities totaled $92.9 million as compared with $62.7 million for the nine months ended September 30, 2021. Expenditures for property, plant and equipment were higher in 2022 as compared with 2021 due primarily to increased capital activity to support our growing operations, including the recently signed management agreement with Chevron.
Cash Flows from Financing Activities
For the nine months ended September 30, 2022, Net Cash Used in Financing Activities totaled $19.2 million as compared with Net Cash Provided by Financing Activities of $17.0 million for the nine months ended September 30, 2021. Cash used in financing activities for the first nine months of 2022 related to dividends and distributions paid. Cash provided by financing activities for the first nine months of 2021 included the issuance of our $400.0 million aggregate principal amount of Notes on April 1, 2021, with net proceeds of $390.6 million used to pay down the outstanding Credit Facility balance of $297.0 million and redeem Redeemable Preferred Units for $74.4 million.