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ETV REPORT: REMOVAL OF ARSENIC IN DRINKING WATER — BASIN WATER HIGH EFFICIENCY ION EXCHANGE WATER TREATMENT SYSTEM
Citation:
NSF INTERNATIONAL. ETV REPORT: REMOVAL OF ARSENIC IN DRINKING WATER — BASIN WATER HIGH EFFICIENCY ION EXCHANGE WATER TREATMENT SYSTEM. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-05/117, 2005.
Impact/Purpose:
To inform the public
Description:
Verification testing of the Basin Water System was conducted over a 54-day period between April 4, 2005 and May 28, 2005. The test was conducted at the Elsinore Valley Municipal Water District (EVMWD) Corydon Street Well in Lake Elsinore, California. The source water was a raw groundwater supply with chlorine added at 0.10 to 0.30 milligrams per liter (mg/L) as an oxidant to convert arsenite [As (III)] to arsenate [As (V)]. Based on the manufacturers recommendation, the system was operated during the verification testing at 850 bed volumes before regeneration. The average total arsenic and vanadium (both naturally occurring) in the raw water was 15 micrograms per liter (5g/L) and 105 5g/L, respectively during the verification testing period. During the verification, the Basin Water System reduced the arsenic levels to below the detection limit (1.0 5g/L) in all 24-hour composite samples and all grab samples, with the exception of one grab sample with a level of 1.1 5g/L. The Basin Water System reduced the vanadium levels to below the detection limit (3.0 5g/L) in all 24-hour composite samples and all grab samples, with the exception of one grab sample with a vanadium level of 4.9 5g/L in the effluent water.
URLs/Downloads:
ETV REPORT: REMOVAL OF ARSENIC IN DRINKING WATER — BASIN WATER HIGH EFFICIENCY ION EXCHANGE WATER TREATMENT SYSTEMVERIFICATION STATEMENT