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' CGRS, Inc. • <br />1 <br />1 <br />1 <br /> <br />1 <br />1 <br />1 <br /> <br /> <br />~~ <br />t <br /> <br />1 <br /> <br /> <br />1 <br /> <br />sampling will be determined after reviewing the initial analytical results; it is not anticipated that <br />more than three months will be requved before water quality parameters equilibrate. <br />i~Surface water quality will be monitored by obtaining samples from the Saint Vrain river <br />downstream of the study area. Surface water samples will be obtained at the same frequency as <br />~oundwater samples. <br />~` ~ '''Z <br />4.5 Contineency Plan and Abatement ~ ~ <br />If adverse changes to water quality as predetermined by all interested pa~are observed during <br />testing, the coal ash will be immediately excavated and stored in a dry impoundment within the <br />Varra property boundary. Native soils will be placed in the trench and water quality will be <br />monitored on a monthly basis for the constituents of concern. Additional remedial activities, if <br />needed, will be commensurate with the extent and degree of water quality degradation. <br />`~ ~ ~~ 5.0 PROJECT SCHEDULE <br />S p~` <br />Upon authorization to initiate field testing, two weeks will be required to contract subcontractors <br />and initiate field activities. Based on laboratory experiments it is anticipated that approximately <br />three months will be required to perform field activities. The project length is based partially on <br />pore volume flow through calculations and the observed leachability of coal ash samples. It is <br />anticipated that a summary report will be submitted within four months of coal ash placement. The <br />report will detail analytical results, hydraulic characteristics of the ash bed, observed variations in <br />hydrogeology and water quality. <br />6.0 ORGANIZATION AND STAFF ASSIGNMENTS <br />6.1 Project Personnel <br />Mr. Joby Adams of CGRS will serve as project coordinator and contact to Varra Companies. Dr. <br />James Warner (CSU Groundwater Program Leader) of Colorado State University will provide <br />senior technical review. Mr. Chester Hitchens of CGRS will serve as field coordinator and will be <br />responsible for supervising drilling activities and will perform or supervise water quality sampling. <br /> <br />