FINAL SITE INSPECTION REPORT

558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594Objective 1: Determine if the site requires additional investigation or can be recommendedfor NDAI based on the presence or absence of MEC.DQO #1 Utilizing trained UXO personnel and handheld all-metal detectors, a visualreconnaissance survey of Target No. 1 and the Impact Area, consisting of four transects each,will be conducted to identify physical evidence to indicate the presence of MEC (e.g., MEC onthe surface and MD). The visual search will consist of a meandering path within the primarytarget area. The following decision rules will apply: If no evidence of MEC (non-small arms, MD, or magnetic anomalies was found duringprior investigations and none is observed during SI visual reconnaissance, the site will beconsidered a potential candidate for NDAI with respect to MEC hazard. If MEC is not found, but isolated MD or magnetic anomalies were identified during priorinvestigations or are identified during SI visual reconnaissance, the site will beconsidered a potential candidate for NDAI with respect to MEC hazard. If MEC was found and/or if abundant or concentrated areas of MD or magneticanomalies were observed during prior investigations or during SI visual reconnaissance,the site will be considered a potential candidate for further investigation with respect toMEC hazard. If any evidence is identified that is inconsistent with the CSM for the site (e.g., if MDindicating the potential use of high explosive [HE] munitions at a site for which the CSMwas based on practice munitions), the above decision rules will be revised appropriately. If there is indication of an imminent MEC hazard, the site may be recommended for aremoval action.DQO #2 Decision for recommending proceeding to RI with respect to MEC can be made forTarget No. 2, Carty Reservoir Bomb Target, Range Complex No. 1, and Demolition Area No. 2.Objective 2: Determine if the site requires additional investigation or can be recommendedfor NDAI based on the presence or absence of MC above screening values.DQO #3 Soil samples will be collected and analyzed as proposed in the SSWP (Shaw, 2007) atTarget No. 1, Target No. 2, Carty Reservoir Bomb Target, the Range Complex No. 1,Demolition Area, Demolition Area No. 2, and the Impact Area. Analytical results will becompared to screening values for human health and ecological risk assessment and tobackground and ambient samples collected during the PA/SI and ODEQ supplied soilbackground data set for naturally occurring substances (note that additional samples wereidentified for the Turret Gunnery Training Range following a reviewer comment). Thefollowing decision rules will apply: If sample results are less than background, or greater than background and less thanhuman health and ecological screening values, the site will be recommended for NDAIrelative to MC.Boardman AFR Final SI Report.doc 3-3 Contract No. W912DY-04-D-0010 Delivery Order No. 003September 2007