
Source: Data collected by United States Geological SurveyArsenic is typically found in groundwater systems of the Southwest. Originating from natural minerals in the ground, arsenic “hot spots” occur based on geologic type of groundwater chemistry. Most of the treatment technologies (e.g. coagulation, media sorption) are modified forms of the same reactions in nature which have caused the release of arsenic into the water.
Engineering Services
Carollo provides a full range of engineering services from innovative research to final design and construction management. As the EPA deadline of January 2006 approaches, more and more utilities have been seeking Carollo to provide both comprehensive and site specific recommendations in order to meet the new Arsenic Rule.
Research Work
The Carollo Water Research Group works with the American Water Research Foundation (AwwaRF) to develop and evaluate new technologies. Recently, Carollo evaluated a new low cost, arsenic field kit that would provide utilities with immediate turn around for analytical results. Experience in the research arena, positions Carollo to provide the most appropriate and complete final design.
Design Work
When addressing arsenic mitigation, Carollo considers more than just how to remove arsenic. Many times arsenic mitigation focuses primarily on the process without considering other important design aspects as such:
• Alternative Source—Blending or Purchase
• Custom Design—Flexibility to Accept Various Media
• Waste Disposal—Off-Site or On-Site Disposal
• Emerging Technologies—AwwaRF Discoveries
An overview of the arsenic regulation, occurrence, and technologies evaluated by Carollo.