The Vallejo Sanitation and Flood Control District is performing CCTV inspections on pipes that do not have a record of such inspections. This effort was triggered by a settlement with Baykeeper, who alleged that broken pipe or pipe about to collapse would remain undetected and lead to sanitary sewer overflows. The actual result of the CCTV inspection turned out to be quite different. Instead of...

  Current World Health Organization and Centers for Disease Control and Prevention guidance for the disposal of liquid waste from patients undergoing treatment for Ebola virus disease at hospitals in the U.S. is to manage patient excreta as ordinary wastewater without pretreatment. The potential for Ebolavirus transmission via liquid waste discharged into the wastewater environment is currently...

INTRODUCTION 4 This subject, Urban Wet-Weather Flows, was comprised of three basic subareas – combined-sewer 5 overflows (CSOs), sanitary-sewer overflows (SSOs), and stormwater discharges. Major proceedings 6 related to wet-weather flow (WWF) published during 2000 were the following: (1) ASCE EWRI 7 Conference – Bridging the Gap: Meeting the World’s Water and Environmental Resources Challenges ...

Reinforced concrete pipe (RCP) has been one of the most common pipes for medium to large diameter utility systems including sanitary sewer, and storm drainage systems. RCP typically has superior structural properties combining high compressive strength from concrete and tensile strength from reinforced steel. RCP tends to deteriorate over time due to hydrogen sulfide (H2S) gas in sewage and man...

T HE Connecticut State Department of Health has recently completed a fairly exhaustive survey of the sanitary condition of all of Connecticut's shore waters on Long Island Sound. For many years, and particularly in recent years, the department has received numerous inquiries as to the safety of sections of the shore for bathing. It has been impossible to give intelligent answers to these questi...

BACKGROUND The aim of this study was to assess the main factors related to maternal mortality reduction in large time series available in Chile in context of the United Nations' Millennium Development Goals (MDGs). METHODS Time series of maternal mortality ratio (MMR) from official data (National Institute of Statistics, 1957-2007) along with parallel time series of education years, income pe...

Background: Water resource management is a strategic issue in Qom city. Water scarcity is one of the most critical concerns of industrial estates. This study aimed to evaluate wastewater management in the Shokuhieh industrial park of Qom province in 2013. Methods: This is a descriptive cross-sectional study done by visiting the industrial units in person, completing questionnaires and analyzin...

A serious concern for managers of water resources, pathogens in the urban environment easily enter waters through a number of pathways, including discharge of inadequately treated sewage, stormwater runoff, combined sewer overflows and sanitary sewer overflows. Pathogens in US ambient water bodies are regulated under the Clean Water Act (CWA), while pathogens in drinking water supplies are regu...

background: water resource management is a strategic issue in qom city. water scarcity is one of the most critical concerns of industrial estates. this study aimed to evaluate wastewater management in the shokuhieh industrial park of qom province in 2013. methods: this is a descriptive cross-sectional study done by visiting the industrial units in person, completing questionnaires and analyzing...