ABSTRACT
Wastewater redirected through a treatment regimen making it safe and suitable for human consumption has taken the forefront in identifying novel methods of augmenting presently limited water supplies. is process known as wastewater reuse has many drawbacks, especially the general sense of the population that
this is a “last resort” and only acceptable when all other methods of obtaining potable water have been exhausted. e public health ocer in a community dealing with decisions regarding wastewater reclamation must be comfortable in assessing the science available to him or her to ensure that the public safety is given the highest level of consideration. e choice of what to measure to ensure this level of safety must be weighed in the
42.1 Introduction ............................................................................................................................. 513 Personal Observations
42.2 Indirect and Direct Potable Reuse ........................................................................................ 514 42.3 Public Health Considerations ................................................................................................ 514 42.4 Moves for Adoption of Wastewater Reuse ........................................................................... 514 42.5 Indicators of Fecal Pollution .................................................................................................. 515 42.6 Pathogens of Concern in Water ............................................................................................. 515 42.7 Limits of Bacteriological Pollution Indicators .................................................................... 516 42.8 Proposed Alternative Pollution Indicators .......................................................................... 517 42.9 Disinfecting Potable Water .................................................................................................... 517 42.10 Permissible Levels of Indicators ............................................................................................ 518 42.11 General Public Acceptance of Bacteriological Indicators ................................................. 519 42.12 e Santa Cruz Wash: A Possible Model for IPR................................................................ 519 42.13 Summary and Conclusions .................................................................................................... 519 References ............................................................................................................................................. 519
Preface Under certain critical conditions, communities may have to commit to using domestic wastewater in order to supplement a potable water source to meet domestic needs. e safety of this water will be called into question by residents and local public ocials, especially the water operations manager and public health director. Certifying or guarantying the safety of this alternate domestic water supply will require extensive testing of the treated water and vigilance within the community to ensure public condence in their water. is chapter deals with the means used by local ocials to ensure safe water when a community must employ wastewater reclamation/reuse to solve demand for a sucient supply.
