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<br />accommodating new development needs in totally. undeveloped areas. <br /> <br />The 1970.CH2M Hill Sewerage System Stud)!, River Road-Santa Clara publication <br />demonstrates.tbe feasibility of providing wastewater service to the River Road .and Santa <br />. Clara area in a manner consistent with the Eugene-Springfield Metropolitan Waste <br />Treatment Alternatives Report (208 Facilities Plan) and the Metro Plan. <br /> <br /> <br />The CH2M. Hill publication defmed study boundaries and made population projections <br />which are different than those contained in the Metro Plan; modifications to these factors <br />is occurring as part of the required system design work prior to construction. <br /> <br />The detailed design work \vhich will occur as part of development of the system will <br />allow discussion of various system concepts with the residents and property owners of <br />the. River Road .and Santa Clara areas. <br /> <br />1. The River Road-Santa Clara Urban Facilities Plan has been completed. <br /> <br />Based on the River Road/Santa Clara Groundwater Study, Final Technical Report, <br />February, 1980 by Sweet, Edwards, and Associates, Inc., the Oregon Environmental <br />Quality Commission (EQC) found on April 18, 1980, that: <br /> <br />a. The River Road-Santa Clara shallow aquifer is generally contaminated with fecal <br />coliform organisms in excess of drinking water and body contact standards. <br /> <br />b. Existing nitrate-nitrogen concentrations within the area exceed the planning target <br />on the average. <br /> <br />c. About 73 percent oftbe nitrate...nitrogen pollutants (and, by analogy, a similar <br />share of the .fecal coliform contaminations) result from septic tank effluent. <br />Septic tank pollutants can migrate rapidly to the groundwater from drainfields via <br />macropore travel. <br /> <br /> <br />TheEQC concluded that a public health hazard exists based on fecal coliform data for <br />people using the aquifer for domestic (drinking) or irrigation and that a health hazard <br />similarly exists in several areas based on nitrate-nitrogen levels. <br /> <br />To remedy the groundwater pollution problem., the Environmental Protection Agency <br />(EP A) awarded Eugene a grant to build a wastewater. system to. replace. th.e individual <br />septic systems in use throughout. River Road and Santa Clara according to a prescribed <br />time frame. <br /> <br />Efforts toward incremental and voluntary annexation of River ~Road and Santa Clara <br />properties to Eugene and connection to the wastewater system. according to the EP A's <br />time frame have not been successful. <br /> <br />II-F-3 <br />