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Show ,BINGHAM CREEK CHANNEL - PHASE 2 \ SSID # T4 STATEMENT OF WORK I. SITE HISTORY AND BACKGROUND Bingham Creek originates in the Bingham Canyon and was the primary drainage from the mining district in this azea though historically, water from the mining district flowed , in the channel, the Large Bingham Reservoir now contains nearly all the flow from the canyon. The reservoir is located in Western Salt Lake County, Utah· approximately one-half mile East of Copperton, Utah in Section 7, Township 3 South, Range 2 West, Salt Lake Base and Meridian. the toe of the reservoir. The channel starts at' The channel passes through several miles of Kennecott property before reaching a county gravel plant and a brick factory, and then entering residential areas at 4800 West. The channel is accessible year-round and is used as a recreational area and trail by residents in the area. It serves as a stor.m water and 'receives drainage during runoff events irrigation, wastewater. Sampling in 992 by the EPA indicated\pigh levels of lead and arsenic, in the soil in Bingham Creek, Channel. Samples were through residential reaches and from upper' reaches and Kennecott property. The 'tailings in the upper also indicated elevated levels of lead and arsenic consistent with those found down channel. collected ARca reaches on ' and arsenic were' identified, at the Site as the contaminants of concern. These are hazardous substances, as defined by § 01 (14) of CERCLA, that were released into t'he environment through mining and beneficiation processes iri the Lead Bingham -canyon, Mining waste (tailings), were discharged directly tO,Bingham Channel and deposited along the banks of the channel upstream from the residential areas. The mining waste was transported primarily by normal runoff events and The last major flood through the Bingham Creek flooding. Channel occurred in 1983. Precipitation events continue to, erpde tailings into te channel. Contaminated . soil is with diameters source of of exposure, wind-blown and disturbed during Dust-size particles (especially those also development act.ivities. OO microns or less), are a significant and are transported by wind'and human 2 ' |
