Our passion is to help you test your water, treat it if necessary, and to make sure your water isn't negatively affecting your health or increasing your risk of illness.

Steven Spayd, PhD, MPH, PG is the founder and president of Diagnosis Water. 

Dr. Spayd recently retired from the New Jersey Department of Environmental Protection (NJDEP) where he worked on:

  • Public health outreach to private well owners in high-risk areas.
  • The public health aspects of contaminated water from private wells.
  • Contaminated sites affecting both public and private wells.
  • Geologic sources and effective water treatment for naturally occurring contaminants like arsenic and radioactive elements.
  • New Jersey Private Well Testing Act.
  • New Jersey Private Well Consortium.
  • New Jersey Well Head Protection Program.
  • The NJDEP Toms River Work Group which provided technical support for the investigation of childhood cancers.
  • Providing assistance to residents and government agencies on water quality, water treatment, contaminant transport, well hydraulics, and hydrogeologic issues.

In addition to running Diagnosis Water, Dr. Spayd is currently an Adjunct Professor teaching Geology at The College of New Jersey.

Dr. Spayd has coauthored 18 peer-reviewed papers, a book chapter on arsenic in water, and several New Jersey Geological and Water Survey and NJDEP publications.

Click here for a PDF of Dr. Spayd's credentials and experience.

Public presentations given by Dr. Spayd:

Private Well Water Treatment for Arsenic and Radioactive Elements
2019 Private Well Conference


Innovative Private Well Testing and Water Treatment for Arsenic, Boron, and Radionuclides in New Jersey
2019 Columbia University Superfund Research Program Seminar


Private Well Water Treatment for Arsenic
2020 Private Well Network Groundwater Treatment Webinar Series, National Environmental Health Association

Read Publications by Dr. Spayd and his colleagues, available free on line:

Whole-house arsenic water treatment provided more effective arsenic exposure reduction than point-of-use water treatment at New Jersey homes with arsenic in well water. Spayd SE, Robson MG, Buckley BT, 2015, Science of the Total Environment, 505: 1361-1369.

Arsenic Exposure and Cancer Risk Reduction with Local Ordinance Requiring Whole-House Dual-Tank Water Treatment Systems. Rockafellow-Baldoni M, Spayd SE, Hong JY, Meng Q, Ohman-Strickland P, Robson MG. 2018. Human and Ecological Risk Assessment: An International Journal, 24: 1256-1267.

Leveraging Health Care Communication Channels for Environmental Health Outreach in New Jersey. Flanagan SV, Braman S, Puelle R, Gleason JA, Spayd SE, Procopio NA, Prosswimmer G, Navas-Acien A, Graziano J, Chillrud S. 2020. Journal of Public Health Management and Practice, Nov/Dec, 26(6):E23-E26.

Arsenic in Private Well Water Part 1: Impact of the Private Well Testing Act on Household Testing and Mitigation Behaviors. Flanagan SV, Spayd SE, Procopio NA, Chillrud SN, Braman S, Zheng Y. 2016. Science of the Total Environment, 562: 999-1009.

Arsenic in Private Well Water Part 2: Who Benefits the Most from Traditional Testing Promotion? Flanagan SV, Spayd SE, Procopio NA, Chillrud SN, Ross, J, Braman S, Zheng Y. 2016. Science of the Total Environment, 562: 1010-1018.

Arsenic in private well water Part 3: Socioeconomic Vulnerability to Exposure in Maine and New Jersey. Flanagan SV, Spayd SE, Procopio NA, Marvinney RG, Smith AE, Chillrud SN, Braman S, Zheng Y. 2016. Science of the Total Environment, 562: 1019-1030.