Autosampling sewer samples (IMAGE) Arizona State University Caption Automated sampler retrieved from manhole with collected 24-hour composite wastewater sample. Credit Devin Bowes, PhD, Arizona State University Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.