Sewage Contamination Testing


Sewage or fecal contamination of indoor environments poses a serious health risk, as feces are reservoirs for enteric pathogens. These pathogens are normally transmitted by the fecal-oral route and infect the gastrointestinal tract. However, when sewage contamination occurs, these pathogens, along with other intestinal organisms, can also be transmitted through air, water, and food.

Aemtek offers a complete line of microbial laboratory testing. Our experienced laboratory staff includes Ph.D. microbiologists and mycologists who perform all analyses, following rigid, specific standard procedures. Testing for sewage screen and/or sewage contamination in indoor environments is performed following EPA or California Department of Health recommendations for water testing. Samples from indoor environments such as water, air, surface (swab), or bulk (carpets, wood, furniture, etc.) can be tested for the “indicator bacteria” (see Aemtek Micro Examiner, April 2005) to assess possible sewage contamination. These tests include:

  • Total coliforms
  • E. coli
  • Enterococci
  • Microbial contamination source tracking

The presence or absence of the indicator bacteria will aid the investigator in confirming or discarding the presence of fecal contamination after an incident of sewage backflow or pipe breakage, and determining the possible need for remediation. Aemtek is committed to providing the highest quality results in a timely manner. All analyses are performed following the procedures outlined in Standard Methods for the Examination of Water and Wastewater in accordance with the strictest quality assurance programs to ensure scientifically sound and legally defensible data. Reports are generated electronically in a user-friendly format and language. Members of our team of professionals are always ready to answer any your questions and address your concerns.

To contact us, call 510-979-1979 or e-mail:

To submit samples, download the Sample Submission Form