Health Effects of Ground Water Recharge

by Margaret H. Nellor, Los Angeles County, United States,
Robert P. Miele, Los Angeles County, United States,
Rodger Baird, Los Angeles County, United States,

Document Type: Proceeding Paper

Part of: Artificial Recharge of Ground Water


A five year multidisciplinary research project was conducted to evaluate the health significance of using treated wastewater for ground water replenishment. The focus of the study was the Montebello Forebay Ground Water Replenishment Project, located in Los Angeles County, California, which has used reclaimed water as a source of recharge since 1962. Research projects included chemical, bacteriological and toxicological evaluations of recharge sources and ground water, and epidemiological studies of impacted and control populations. Results indicated that the historical level of recharge had no measurable impact on ground water quality or the health of the people ingesting the replenished ground water. These findings led to a 50 percent increase in the use of reclaimed water for replenishment.

Subject Headings: Groundwater recharge | Risk management | Water reclamation | Groundwater quality | Land reclamation | Wastewater treatment | Chemicals | Sewage | California | United States | Los Angeles

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