ARCHIVED REPORTS_1989_1 - Laserfiche WebLink

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2.0 SITE CHARACTERISTICS 2.1 GROUND WATER AND SURFACE WATER In accordance with Section 2595(a) of Title 23, Chapter 3, Subchapter 15 of the ' California Administrative Code (CAC), the ground water and surface water were assessed to determine how they have affected, or may affect, the waste site, and how ' the site has affected or may affect the ground water and surface water. This assessment was used to determine suitability of the waste unit regarding ground-water protection and avoidance of geologic hazards. The information gathered to date indicates that the ground water and surface water have ' neither chemically nor physically altered the waste unit. Evidence indicates that no particularly reactive minerals or materials are within the geologic strata underlying or adjacent to the waste unit that would be altered by the presence, absence, or movement of ground water or surface water. Evidence also indicates that the site is not in an area ' of rapid geologic change where the current hydrogeologic conditions could significantly change within the operational and postclosure period of the site. In addition,the emplacement of the waste unit does not appear to have caused any major physical changes to the ground water and surface water. The waste unit does not ' appear to have caused any changes to the presence, absence, or movement of ground water or surface water near the site. ' No particularly reactive minerals or materials are within the geologic strata underlying or ' adjacent to the waste unit that would be altered chemically or physically by the presence of the waste. ' 2.2 TOPOGRAPHY ' A topographic map of the site and its surrounding region within 1 mile of the landfill is presented in Figure 1. This map shows the on-site topography in 1954. Site ' topography from 1987, is presented in Drawing 1. The topography within a 1-mile STL 9390314 4 Rev. 0 06/30/88 ' Mon Associates