A cast-iron, horizontal pipeline was installed 20 years ago with a Hazen-Williams coefficient of 130. The pipeline is 2,000 m long and has a diameter of 30 cm. Significant tuberculation has occurred since it was installed, and tests are run to determine the existing CHW. A pressure drop of 366,000 pascals is measured over the pipeline length for a flow rate of 0.136 m3/sec. Determine the existing Hazen-Williams coefficient. Assume minor losses are negligible and verify your results with computer software.
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