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Keywords: TABLE 2.2. Analytical Data from B Plant Laboratory Waste Water I_, __ M_, _ 1_ tl.:

This document outlines a ground-water monitoring plan for the 216-B-63 trench located in the northeast corner of the 200-East Area on the Hanford Site in southeastern Washington State. It has been determined that hazardous materials (corrosives) were disposed of to the trench during past operations. Installation of an interim-status ground-water monitoring system is required to determine whether hazardous chemicals are leaching to the ground water from beneath the trench. 
This document summarizes the existing data that are available from near the 216-B-63 trench and presents a plan to determine the extent of groundwater contamination, if any, derived from the trench. The plan calls for the installation of four new monitoring wells located near the west end of the trench. These wells will be used to monitor ground-water levels and water quality immediately adjacent to the trench. Two existing RCRA monitoring wells, which are located near the trench and hydraulically upgradient of it, will be used as background wells . 

This document presents a ground-water monitoring plan for the 216-B-63 trench located on the Hanford Site in southeastern Washington State. The ground-water monitoring plan, prepared for Westinghouse Hanford Company (Westinghouse Hanford) under subcontract to the U.S. Department of Energy, Richland Operations (DOE-RL), is based on requirements for interim-status facilities, as defined by the Resource Conservation and Recovery Act (RCRA) of 1976 and amended by the Hazardous and Solid Waste Amendments of 1984. These regulations are promulgated by the U.S. Environmental Protection Agency (EPA) in 40 CFR Part 265, Subpart F, and by the Washington State Department of Ecology (hereafter called Ecology) in WAC 173-303-400 (Ecology 1986). 
Under RCRA interim status, the 216-B-63 trench requires a ground-water monitoring program. This section presents the purpose, objectives, and scope of the plan for this program. The 216-B-63 trench receives waste water from the B Plant in the 200-East Area. In the past, this waste water has contained hazardous waste and materials; since 1985, physical controls and operating procedures have been modified to avoid inadvertent discharge of chemicals to the waste-water stream. Because the 216-B-63 trench is not expected to receive additional hazardous substances, DOE-RL has proposed that the trench be closed under RCRA interim status, although it will continue to receive waste water not regulated under RCRA (DOE 1987). 

PURPOSE AND OBJECTIVES

The purpose of this plan is to present a program that is capable of determining the impact of the 216-B-63 trench on the quality of the uppermost aquifer underlying the facility to comply with RCRA regulation (40 CFR Part 265, Subpart F). Specific objectives include: 
• Presenting an initial ground-water monitoring system that is able to provide a preliminary indication if any hazardous constituents 

1 FACILITY DESCRIPTION

The following description of the facility includes a discussion of the physical layout of the 216-8-63 trench as well as the documented history of operation within 8 Plant , the source of effluent discharged to the trench. Most of the following facility description is from DOE (1987) . Other sources of information on effluents discharged to the trench are Maxfield (1979), Jungfleisch (1988), and Coony et al . (1988) . 

Location and Physical Description

The 216-8-63 trench is located in the northeast portion of the 200-East Area (Figure 2. 1) . The 216-8-63 trench parallels the western end of the 216-8-2 ditches (Figure 2.2) . It is an open, artificial, earthen trench approximately 4 ft wide at the bottom, 10 ft deep, and 1400 ft long. The trench is unlined and has been used to dispose of radioactive (low-level) waste water, which is allowed to evaporate and percolate into the underlying soils . The 8 Plant chemical sewer discharges into the west end of the trench through a 15-in. -diameter vitrified clay pipe. The first 10 ft of the trench is lined with gravel for erosion control . Only the first 860ft of the trench contains water, as a result of the placement of a small earthen dam at 1 this point. The depth of water varies from approximately 1. 5 ft at the head end to 1 ft at the lower end. The trench is closed at the east end and does not convey effluent to any other facilities . 

1. 2 History of Operation

The 216-8-63 trench receives liquid waste from a B Plant waste stream commonly known as the B Plant chemical sewer . Sources of waste water discharged to the chemical sewer at B Plant include drains from chemical storage and chemical makeup areas, effluents from the plant water demineralizers , steam condensate from tank heating coils, cooling water from air compressors, rain water, office floor drains, and overflow from the B Plant water tower (Table 2.1). The approximate average flow rate of waste water discharged to the 216-B-63 trench varies from 100,000 to 400,000 gallons per day (gpd). As a result, some water is present in the trench most of the time. Flow rates are monitored by a 1.5-in. flm-1meter installed near the point where the effluent enters the trench. 

r

The 216-B-63 trench has been in operation since March 1970. Since that time, the only documented hazardous effluent discharged consisted of regeneration solutions from the B Plant demineralizers. These effluents were routine corrosive discharges of aqueous sulfuric acid and sodium hydroxide solutions. Demineralizer effluents were released sequentially from anion and cation columns, a procedure that produced effluent beyond the pH limits of 2.0 and 12.5. These corrosive discharges occurred from 1970 until October • 1985. 
The current practice is to divert each effluent to a holding tank where the cation column effluent is neutralized with sodium carbonate and the anion column effluent is neutralized with monosodium phosphate. Once neutralized to a pH between 4 and 10, the effluents are released to the chemical sewer. Procedural controls instituted since 1984 also require neutralization of corrosive chemicals before they are released from storage or makeup tanks, and they forbid the intentional release of hazardous materials to the chemical sewer. The waste stream currently has inline monitors, for beta and gamma radiation and for pH (Coony et al. 1988). 
In the past, floor drains, funnel drains, and tank overflow/drain and heating and cooling coils in 225-B (encapsulation facility portion of B Plant) were discharged into the chemical sewer. This facility has been shut down and no longer produces waste. All its drains and discharges have been covered or plugged. 
Although the 216-B-63 trench was placed in service in March 1970, the bottom and sides of the 216-B-63 trench were dredged out in August 1970 and the dredgings buried in the Low-Level Burial Grounds in the 200-East Area. The dredgings were found to be contaminated with approximately 3000 counts per minute of beta-gamma activity at that time (PNL 1987). 

Waste Characteristics

Water, the principal substance making up discharge to the 216-B-63 trench, consists of 70% steam condensate from tank heating coils and air compressors, and 30% raw water from such sources as rainwater and overflow from the B Plant water tower. Contaminants mixed with this waste water may be derived from chemical storage and chemical makeup areas, effluent from 2.5 plant water demineralizers, and/or flo9r, funnel, and sink drains connected to B Plant facilities (Table 2.1). It is estimat ed that the B Plant chemical sewer transported nearly 4700 kg of nitrate and 715 kg of total organic carbon in 1987 (Coony et al. 1988). Maximum discharge temperatures for all individual sources are less than 100"F, except for the 221-B Pipe and Operating (P&O) Gallery steam condensate, which is 212•F. This condensate contributes 1,000 to 2,000 gpd under normal operating conditions. 
The effluent stream is monitored continuousl y at two locati ons for radiation and sampled weekly for chemical analys i s. Concentrati ons of chemical constituents, as well as other water quality parameters, are listed for a period from 1985 to 1986 in Table 2. 2. As demonstrated in Table 2.2, concentrations of most constituents, as well as pH , showed cons i derable variation over a relatively short sampling period (less than 1 year) . According to Jungfleisch (1988) , none of the sampled discharges into the 216-B-63 trench are classified as dangerous waste or extremely hazardous waste as specified by the Dangerous Waste Regulations of the State of Washington (Ecology 1986). 

GEOLOGY

Thi s section provides background information on the geology of the Hanford Site, the Separations Areas, and the 216-B-63 trench to support t he preparation of the indicator-evaluation ground-water monitoring program presented in Chapter 3. 0. The geology of the Columbia Plateau and particularly the Pasco Basin has been studied in detail for DOE as a part of the siting studies for a deep geologic repository for nuclear waste . The Consultation Draft, Site Characterization Plan (DOE 1988) summarizes much of the information known about the Hanford Site, especially near the 200 -West Area , where the candidate repository site was located. Studies have also been done in support of nuclear power plant licensing efforts , including those for the Washington Public Power Supply System (Supply System 1981) and the Skagit/Hanford Project (PSPL 1982). More detailed information is available in the following reports: • on the basalt stratigraphy and chemistry - Swanson et al . (1979) and Reidel et al . (1982) • on the sedimentary units interfingered with and overlying the basalts - Bjornstad (1984Bjornstad ( , 1985)); Fecht et al . (1985); Myers/Price et al. (1979); Mye_rs and Price (1981);and Gr.aham et al. (1984). Tallman et al . (1979 ) is the only in-depth study of the geology of t he Separation s Area s . 
2.7 

Regional Geologic Setting

The Hanford Site lies within the Columbia Plateau, which is generally characterized by a thick sequence of tholeiitic basalt flows called the Columbia River Basalt Group (Swanson et al. 1979). These flows have been folded and faulted, creating broad structural and topographic basins separated by asymmetric anticlinal structures (i.e., ridges). The Hanford Site lies within one of these basins, the Pasco Basin (Figure 2.3). 
Principal geologic units within the Pasco Basin include, in ascending order, the Columbia River Basalt Group (Miocene), the Ringold Formation (Miocene-Pliocene), and the Hanford formation (Pleistocene). A regionally discontinuous veneer of recent alluvium, colluvium, and/or eolian sediments overlies the principal geologic units. 

Geology of the Separations Areas

The surface topography of the Separations Areas is primarily the result of two geomorphic processes: 1) Pleistocene cataclysmic flooding, and 2) Holocene eolian activity. Cataclysmic floodirg, which ended about 13,000 years ago (Mullineaux et al. 1978), created Cold Creek bar (Bretz et al . 1956), a prominent flood feature within the Separations Areas (Figure 2.4). The last cataclysimic flood(s) covereo the Separations Areas with a blanket of coarse-grained deposits, which become finer-grained to the south. The northern boundary of the Cold Creek bar is defined by an erosional channel running east-southeast, which formed during waning stages of flooding as floodwaters drained from the basin (Bjornstad et al. 1987). 
Since the end of the Pleistocene, winds have reworked the surface of the glaciofluvial sediments locally, depositing a thin veneer of eolian sand in places . Holocene sand dunes are present along t~e southern boundary of the 200-East Area (Figure 2.4). Holocene alluvium, associated with the Cold Creek-Dry Creek alluvial plain, was deposited less than 1 mi southwest of the 200-We st Area (Figure 2.4). 
The Separations Areas lie within the Cold Creek syncline, which is bounded on the north by the Umtanum Ridge-Gable Mountain anticlinal structure and on the south by the Yakima Ridge anticlinal structure (Figure 2.3). ..<:. ::::::::::::::::::::::::::::::::::::::::::::::: :::" • ::' ": ::::::::::: :' 
.~:::::::::::::::::::::::::::::::::::::::::::m:::::::• ::::: ::::::::::::::::1 4mm l l i ! i l l l l i ~l l i l l ! l 1 1 1 1 l l l i l l l l l l i i l l i i l i l l i l i i l i i i i l i i i l : : : ; : l l l l i J i l : l i l 1 : i l ; l i / 1 J i , l l 1 1 1 1 1 / l l ~i l l ; i l l , f : 1 ~~:~~~:/ ~-l~~11ij!mii!ij!i1jj!i~~~jjjl1j~~jj~jj11~~jm~jjj~~!!j!j;jj~~ll!ljiji~~ljl~jl1~iij~::~\~l~~l1ii~lii11~~~i;~;~ll~iill~~;ijjljij~;j;;~~~~~~;lil ... 
In the Separations Areas, the top of basalt generally dips gently (less than s • ) to the south-southwest, except in the southwest corner of the 200-West Area, where beds are nearly horizontal along the axis of the Cold Creek syncline. 
The generalized stratigraphy of the Separations Areas is shown in Figure 2.5. Bedrock is composed of basalt flows and sedimentary interbeds, which belong to the Columbia River Basalt Group and Ellensburg Formation, respectively. Overlying Columbia River basalt is the fluvial-lacustrine Ringold Formation consisting of variably mixed and interbedded layers of gravel, sand, and mud (i.e., silt and clay). The thickness of the Ringold Formation ranges from 0 ft in the northern part of the 200-East Area to about 500 ft in the southwest portion of the 200-West Area near the axis of the Cold Creek syncline (DOE 1988;Tallman et al. 1979). 
The Ringold Formation is divided into four stratigraphic units: basal, lower, middle, and upper. The basal Ringold unit consists of silty sandy gravel overlain by a fining upward sequence of sand and mud. Overlying the basal Ringold is the lower Ringold unit, another fine-grained unit consisting of mostly mud. Sediments of the lower Ringold and upper basal Ringold units have been recognized locally as a potential confining layer. 
Where present, the Ringold Formation is dominated by the middle unit in the vicinity of the Separations Areas. The predominant texture consists of well-rounded sandy gravel with some sand and silty sand lenses. The gravels typically range from pebble to cobble in size; however, boulders are locally common {Tallman et al. 1979). Because of their textures and the similarity of their gravel lithologies, the coarse-grained basal and middle Ringold units are difficult to distinguish unless separated by the fine-grained sediments of the upper basal Ringold unit or the lower Ringold unit. The ~ uppermost unit, the upper Ringold, is another sequence of thinly bedded , well -sorted sand and/or mud (DOE 1988;Tallman et al. 1979). 
~ Not all of the units of the Ringold Formation are present throughout the Separations Areas . Erosion by the ancestral Columbia River and later cataclysmic flooding during the Pleistocene Epoch have removed some or all of the Ringold Formation in areas (DOE 1988;Tallman et al. 1979). All four 2.11 c: 
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.~ , units are currently identified only in the western and southern portion of the 200-West Area, while little or no Ringold is present in the northeastern part of the 200-East Area (Tallman et al. 1979;Last et al . 1989). 
A well-developed calcrete belonging to the Plio-Pleistocene unit is found on the uppermost surface of the eroded Ringold sediments in the 200-West Area (Bjornstad 1984;Last et al . 1989). In places, the Plio-Pleistocene unit is overlain by as much as 30ft of early .. Palouse" soil, an eolian deposit of fine-grained sand and silt. Both of these units are present over most of the 200-West Area , but they have apparently eroded from the 200-East Area. 
The cataclysmic flooding that eroded the Ringold Formation also deposited a sequence of relatively unconsolidated mud, sand, and gravel informally called the Hanford ~ormation. At least four major flood events occurred in the Pasco Basin during the Pleistocene (Fecht et al. 1985). Near flood channels (e.g., in the northern 200-East Area), the Hanford formation consists of dominantly coarse gravel and sand (Pasco Gravels facies), while to the south and west more slack-water type deposits of sand and silt lie between or beneath coarse-grained flood deposits (Last et al. 1989) . Within much of the southern portion of the Separations Areas, the Hanford formation consists predominantly of sand. Thickness of the formation ranges from approximately 70 ft in part of the 200-West Area to a maximum of about 350ft east of the 200-East Area (Tallman et al. 1979) . 
The contact between the Hanford and Ringold formations is commonly a transition upward from more indurated deposits containing a variety of lithologies (Ringold Formation) to very weakly cemented or unconsolidated sediments with a higher proportion of basaltic clasts (Hanford formation) . The textures of the Pasco Gravels and the middle Ringold are similar, although the difference in gravel lithologies can sometimes be used to distinguish between the two. However, in some places, basalt-rich gravel layers have been found in the middle Ringold unit, and if the middle Ringold and Pasco Gravel s are not separated by the upper Ringold, the Plio-Plei stocene unit , and/ or the early "Palouse" soil , they can be difficult to 2. 13 distinguish. This is particularly true where considerable reworking and incorporation of the Ringold sediments into the Hanford formation has occurred. Graham et al. (1984) indicate the possibility that the Elephant Mountain Member has been completely eroded near the northeast corner of the 200-East Area, with partial erosion over a larger area. This may result in the Hanford formation directly overlying the Rattlesnake Ridge interbed northeast of the 200-East Area . 

Site Geology

The 216-8-63 trench lies at an elevation of about 640 ft along the northern flank of Cold Creek bar . Cold Creek bar formed along the margin of a Pleistocene-age cataclysmic flood channel, located in the northeastern portion of the 200-East Area (see Figure 2. 4). • The land surface in the vicinity of the trench dips at -145 ft/mi (<2") to the northeast, toward the axis of the paleochannel. 
An interpretation of the subsurface geology near the site is based on an examination of sieve data, drillers' logs, and natural gamma logs from 25 wells nearest the 216-B-63 trench, shown in Figure 2.6. An inventory of the data on these wells, used to generate contour maps in this report, is listed in Table 2.3 . Well-construction and geol ogic logs for three of these wells, located within 1000 ft of the trench, are presented in Appendix A. 
A three -dimensional representation of the subsurface geology is presented in Figure 2.7. Essentially, only a single stratigraphic unit, the Hanford formation, overlies basalt beneath the site; according to Last et al . (1989), the Ringold Formation pinches out -2000 ft to the southwest (Figure 2.8) . Based on the limited borehole data presented in Figure 2.7, the sediments directly beneath the 216-8-63 trench appear to be mostly mixtures of sand and gravel associated with high-energy deposition by cataclysmic floods. Lateral facies changes occur in the flood deposits to the south and west , however , away from the axis of the main fl ood channel. Along the southern margin of the flood channel , deposits become finer grained _and include layers of fine sand, silt, and occas ionally mud , which could act locally as aquitards leading to perched -water conditions. The thickness of 2. 14 
d•t•ll•d logs pr•••nt•d In App•ndlx C •• I® of basal a • no recent water-level measurement NR • not reached NA • not applicable • existing RCRA monitoring well ---- .. ' "" ~o•' ..
.. Results of bulk geochemical analyses on sediment samples from an existing well (299-E34-2) have recently become available. The well is located -500ft northeast of the 216-B-63 trench (see Figure 2.6). Hard-tool samples from this well were analyzed by x-ray fluorescence at three stratigraphic levels: toward the top, middle, and base of the Hanford formation sequence. The results are tabulated in Table 2.4. 
When compared to other bulk chemical analyses performed on the Hanford formation within the 200-East Area, analytical results from toward the base of the Hanford formation sequence in 299-E34-2, where the unconfined aquifer lies, are about average (Table 2.4) . Concentrati ons toward the top of the Hanford formation, on the other hand, are more than one standard deviation above the average for many constituents (Ca, Fe, C, Zn, Ga, and Zr). In contrast, concentrations toward the middle portion of the Hanford formation sequence are only significantly above average in Ni, while the difference from the average is less than 1a for many other elements (Ca, Ti, Fe, V, Mn, Cu, Zn, Y, Zr, Nb). More bulk geochemical analyses of sediments are needed, however, to establish the degree of internal variation among stratigraphic units and determine true background levels of the chemical constituents present. 

HYDROGEOLOGY

This section provides background information on the hydrogeology beneath the Hanford Site. Detailed descriptions of the area's hydrogeology are available in reports by DOE (1988), Gephart et al. (1979), Graham et al. (1981, 1984), and Law et al. (1987), and in water-level data collected and reported semiannually (Schatz and Ammerman 1988). 

Regional Setting

The Hanford Site has a semiarid climate and receives an average of 6.25 in. of precipitation per year. Some evapotranspiration measurements have been made at Hanford, but a detailed study has not been made near the 2.20 

21

Separations Areas. Wallace (1977) used Hanford Meteorology Station data to compute average potential evapotranspiration for the Hanford Site using three different methods: the Penman, Thornthwaite-Mai t her, and Morton methods. 
The potential evapotranspiration values calculated by Wallace were from five to nine times the mean annual precipitation. Cal culations for monthly potential evapotranspiration compared with average monthly precipitation values from Stone et al. (1983) indicate that precipitation may exceed evapotranspiration within the months of November through February. 
Recharge rates range from near zero to more than 4 in./yr, depending on surface conditions (Gee 1987). Small recharge rates occur where finetextured sediments and deep-rooted plants occur (e.g. , much of the 200 Areas) . The larger values are associated wi t h areas having a coarse gravelly surface and no vegetative cover. The Hanford Site is drained by the Yakima and Columbia rivers (Figure 2.1). 
Ground water beneath the Hanford Site occurs under both unconfined and confined conditions. The unconfined aquifer is contained primarily within the middle unit of the Ringold Formation and the Hanford formation. The base of the unconfined aquifer is the basalt surface of the Elephant Mountain Member of the Columbia River Basalt Group, or, in some areas, the clay of the lower Ringold unit. The confined aquifers beneat h the Hanford Site include sedimentary interbeds and interflow zones that occur between dense basalt flows of the Columbia River Basalt Group . 
The source of natural recharge to the unconf ined aquifer and some of the confined aquifers is rainfall from areas of high relief west of the Hanford Site and ephemeral streams in the Cold Creek and Dry Creek valleys. Discharge from the unconfined aquifer is primarily t o the Columbia River (Graham et al. 1981) . 

Ground-Water Hydrology of the Separations Areas

As more characterization efforts are undertaken on the Hanford Site, the understanding of the geologic framework and its relation to the hydrogeologic system will continue to be developed and refined . Thi s document does not attempt to integrate or present all that is known of t he hydrogeologic system within the Separations Areas. Instead , thi s discus sion is limited to 2.22 t ' the hydrologic properties of the uppermost portion of the unconfined aquifer contained in the Hanford and Ringold formations. 
In addition to natural recharge, the unconfined aquifer receives artificial recharge from liquid disposal areas. This artificial recharge is estimated to be 10 times greater than natural recharge (Graham et al. 1981). Graham et al. estimated natural recharge from Cold Creek Valley to the Separations Areas to be approximately 1.3 x 10 6 gpd. The total volume of ~ artificial recharge in 1987 was approximately 6.1 x 10 9 gal (Serkowski et al. 1988) , corresponding to a rate of approximately 1.7 x 10 7 gpd. The major sources of artificial recharge in the central Hanford Site have been three waste ponds, designated U Pond, Gable Mountain Pond, and B Pond, all located near or in the Separations Areas. These sources of artificial recharge have had a major effect on the flow system of the unconfined aquifer. U Pond and Gable Mountain Pond were deactivated in 1984 and 1987, respectively. B Pond is scheduled for decommissioning in the mid-1990s. 
, Ground-water elevation contours for December 1987 (Schatz and Ammerman 1988) for the unconfined aquifer in the Separations Areas are shown in Figure 2.9 . The regional flow direction in the Separations Areas is from west to east, but it is affected by the two ground-water mounds that have resulted from discharges to U Pond and B Pond. Ground-water flow beneath the 200-West Area is generally toward the north and east, away from the mound created by past discharges to U Pond. As this mound dissipates as a result of the discontinuance of discharge to U Pond, the hydraulic gradient will decrease and shift to the east. The hydraulic gradient in the 200-West Area is sufficiently high (a minimum of approximately 10-3 ft/ft) to determine flow directions with a large degree of certainty. Vertical hydraulic gradients are presumed to be present within the unconfined aquifer in portions of the 200-West Area as a result of the ground-water mound (Graham et al . 1981). 
Ground -water flow beneath the 200-East Area is complex because flow converges from the west and east and then diverges, with a component flowing northward between Gable Butte and Gable Mountain and the other component flowing southeast toward the Columbia River . In addition, the high transmissivity beneath most of the 200-East Area results in very small hydraulic 2.23 gradients. Flow directions may shift because of changing rates of waste water discharged into B Pond and other disposal s ites. Therefore, it is often difficult to define flow directions at specific sites. 
The principal geologic units (Figure 2.5) controlling ground-water flow in the Separations Areas are, in ascending order , the Elephant Mountain Member, which acts as a confining layer except where it has been locally eroded, and the Ringold and Hanford formations , which contain the unconfined aquifer. Basalt of the Elephant Mountain Member is assumed to be the base of the unconfined or uppermost aquifer near the 200-East Area. However, two studies (Graham et al. 1984;Jensen 1987) present results indicating aquifer intercommunication between the unconfined aquifer and the Rattlesnake Ridge confined aquifer near the 200-East Area. The Elephant Mountain Member has possibly been eroded in or near the northeast corner of the 200-East Area, providing a means for aquifer intercommunication . 
The depth to water of the unconfined aquifer within the Separations Areas ranges from approximately 19 ft beneath the former U Pond to approximately 340 ft west of the 200-East Area. The thickness of the unconfined aquifer ranges from 0 ft at the north edge of the 200-East Area to more than 250 ft in the northwest part of the 200-West Area. 
In general, the transmissivity tends to increase from west to east across the Separations Areas as a result of a larger portion of the unconfined aquifer being contained within the more permeable Hanford formation . 
The Ringold Formation exhibits a variety of hydrologic characteristics, including hydraulic conditions ranging from confi ned to unconfined . In some areas, the lower Ringold unit is the base of the unconfined aquifer. In the southern portion of the 200-East Area and much of the 200-West Area, the basal Ringold unit is locally confined by the overlying lower Ringold unit (Graham et al. 1984). In other areas, the lower Ringold unit is missing, and the basal and middle Ringold units contain the unconfi ned aquifer . In the northeastern portion of the 200-East Area, the Ri ngold Formation is completely eroded. Here, the unconfined aquifer li es within the Hanford formation, which lies directly on top of basalt (Tallman et al. 1979). The lithol ogies in the unconfined aquifer exhibit widely varying hydrogeologi c 2. 24 • n-e2(;: L _______ _ 
•IS• SO r • ••• •••' • '" _ tlW • t).
•lll u 
•(1).t0 
• lU 1l 
• U-S6 properties (Table 2.5). The values given in this table are generalizations; in some locations hydraulic properties lie beyond the ranges given. 
In the 200-West Area, the unconfined aquifer occurs within the middle Ringold unit, which is compacted and often partially cemented. Transmissivities range from 300 to 5400 ft 2 ;d. In the 200-East Area, the aquifer is in either the unconsolidated Hanford formation, the middle Ringold unit, or both, leading to a range of transmissivities from 5 to 135,000 ft 2 /d (Graham et al. 1981). 
The measured storativity values for the unconfined aquifer range from 0.002 to 0.7 (Table 2.5); the lower values are associated with the lower Ringold unit and the higher values with the Hanford formation (Graham et al. 1981) . 
The effective porosity of the sediments in the unconfined aquifer ranges from 10 to 30%. The lower value can be correlated with sediments of the lower Ringold unit, and the upper range approaches the total porosity of the sediments in the Hanford formation (Graham et al. 1981). The water in the aquifer is principally of a calcium-bicarbonate type, but there is considerable variability in chemical composition among individual samples. 
Discontinuous perched-water tables occur in parts of the 200-West Area, often lying above a calcrete belonging to the Plio-Pleistocene unit or above markedly finer-grained sediments in the upper Ringold and Hanford formations. The lateral extent of these perched-water tables has not been defined in detail, but they are generally found only near sources of discharge of large quantities of water to the sediment column and where fine-grained sediments occur . 

Hydrogeology Beneath the Site

The unconfined aquifer lies at a depth of about 240ft (Figure 2.10) beneath the site. The aquifer thins to the northeast in response to the sloping basalt surface, which is folded upward i n this direction (Figure 2.11). The thickness of the unconfined aquifer ranges from about 20 to 30ft in the vicinity of the trench (Figure 2.12). The aquifer lies entirely within the coarse-grained Hanford formation deposits, except south of the trench (e.g., 299-E28-5) where slack-water deposits of sand to muddy sand lie within the aquifer (see Figure 2.7) Di scontinuous fine-grained layers of sand and mud occur above the water table also, but these appear to be restricted to areas south and west of the trench. 
Near the 216-B-63 trench, aquifer tests have been performed on wells associated with the Low-Level Burial Ground waste management area , located north and east of the trench (Last et al. 1989). Results of these tests , performed on two wells within 1000 ft of the trench (299-E27-8 and 299 -E34-2), along with estimated aquifer thickness and calculated hydraulic conductivity, are presented in Table 2.6. 
Based on the potentiometric map in Figure 2.13, ground water flows we st -northwest, roughly parallel to the axis of t he 216 -B-63 trench. The ground-water flow is driven in this direction by the recharge mound beneath B Pond to the east (Figure 2.9). The differences in head are relatively minor , however, and the flow of ground water coul d change significantly after B Pond is decommi ss ioned.  ---------0 ,.5&.8 -so- Cooper and Jacob (1946). (c) Calculated from observation wel l 299 -E34-1 using Boulton ( 1963). (d) Recovery analytical method of Cooper and Jacob (1946) . 

200-East Area

2.32 • Characterize the sedimentary deposits and the ground-water flow direction and rate beneath the trench. The focus will be on the unconfined aquifer. 
• Implement a monitoring program to determine if statistically significant amounts of hazardous waste constituents above background occur in the ground water downgradient from the trench. 
• Initiate, if necessary, the development of an assessment-level monitoring program to determine the nature and extent of contamination from the trench. 

APPROACH

The initial indicator-evaluation ground-water monitoring network for the 216-B-63 trench will utilize eight wells (Figure 3.1). Two wells already in existence (299-E27-8 and 299-E-34-2) will be used as upgradient wells to establish background concentrations of constituents. Four new wells will be drilled, via the cable-tool method, west and south of the trench to serve as detection wells. Three additional wells (2-D1, 2-D3, and 2-D4) are planned but not yet installed immediately north of the trench to monitor one of the Low-Level Burial Ground waste-management areas (Last et al. 1989). Depending on the direction of ground-water flow, these wells may also be utilized for detection of contaminants from the 216-B-63 trench. All eight monitoring wells will penetrate into the top of basalt. 
As part of characterization, subsurface soil samples will be obtained every 5 ft or at major changes in lithology during drilling at each location. .2 summarized on lithologic logs. Samples will be collected, where appropriate, for grain-size analysis, moisture content, and/or other physical and chemical properties . . Ground-water samples will be collected when drilling reaches the water table. These samples will be analyzed for contamination indicator parameters (noted later in this section) before aquifer testing. If contamination is not detected, aquifer tests will be conducted to provide estimates • of transmissivity and hydraulic conductivity of materials beneath the site. Each of the monitoring wells will be tested geophysically with a natural gamma log, once for each different size casing and again upon final well completion. 
0 500 I I I I I I Feet ~----------------------------------------------------------------------~N44000
Ground water within the new wells, plus that in appropriate existing wells, will be monitored at approximately 3-month intervals in order to establish background levels . After one year, sampling will occur semiannually to look for statistically significant changes in water quality and/or ground-water flow. If contamination is detected, then an assessmentlevel monitoring program, outlined in Chapter 4.0 of this document, will be implemented. 
Procedures to be used during this ground-water investigation appear in PNL (1989). The most recent versions of procedures will be followed; periodic .updates of procedures will appear . 

GROUND-WATER MONITORING SYSTEM

This section discusses the indicator-evaluation ground-water monitoring system, including locations and justifications for new wells, drilling and well installation, planned ground-water monitoring, and the types of indicator parameters to be monitored . 

Uppermost Aquifer

The uppermost aquifer beneath the 216-B-63 trench is the unconfined aquifer, discussed previously in Section 2.3.3 . The unconfined aquifer lies at a depth of about 240ft beneath the trench (see Figure 2.10) . At the present time there is no evidence to suggest the presence of any perched water in the immediate vicinity of the trench. The unconfined aquifer is 3.3 absent northeast of the 216-8-63 trench where the top of the basalt rises above the surface of the water table (Figure 2.12} . The unconfined aquifer is only about 20-30 ft thick in the vicinity of t he trench, but it becomes progressively thicker to the southwest. 
Very few wells are located near the 216-8-63 trench. Only one well (299-E34-2} is within 500 ft, and only three wel l s lie within 1000 ft of the trench. For this reason it is not possible to evaluate the detailed geology and hydrology of the area immediately adjacent to the trench with available information. Installation of the new monitoring wells is needed to better understand the geologic and hydrologic characteristics of the site. 

. 2 Background (Upgradient) Wells

Under the present ground-water flow regime, the movement of ground water appears to be roughly east to west in the vicinity of the 216-8-63 trench (Figure 2.13). Two existing upgradient wells, 299-E27-8 and 299-E34-2, will serve as background wells. As discussed in Sect' on 2.3.3, the present flow direction is primarily the result of a temporary ground-water mound that exists as a result of artificial recharge from B Pond , located 1.5 mi east of the 216-B-63 trench. In the future, the ground-water flow may change direction drastically after B Pond is decommissioned in the mid-1990s. The monitoring system will be reevaluated at that time to determine whether these wells remain appropriate background wells. 

Detection (Oowngradient) Wells

The placement of detection-monitoring wells is complicated by the fact that the present ground-water flow direction appears to roughly parallel the trench (see Figure 2.13). Furthermore, because the data are limited , the exact direction and the degree of variation in ground-water flow are uncertain at this time . 
A total of four new detection wells will be installed at the west (hydraulically downgradient} end of the 216-B-63 trench (Figure 3.1}. Three of the wells are placed west of trench and the fourth is south. Three other wells located north of the trench are planned to monitor an adjacent 3.4 , waste-management area (last et al. 1989). These wells may also be used as detection wells, depending on the direction of ground-water flow. 

.4 Use of Existing Wells

Only three existing wells lie within 1000 ft of the 216-B-63 trench (Figure 3. 1). Two of these wells, 299-E34-2 and 299-E27-8, currently monitor the uppermost aquifer and were constructed according to RCRA specifications (EPA 1986) to monitor one of the Low-Level Burial Ground waste-management areas (last et al. 1989). A third well, 299-E34-1, is much older and not constructed according to RCRA specifications . 
Use of the two existing RCRA monitoring wells is justified for several reasons. First, their construction is identical to that of wells planned to monitor the 216-B-63 trench . Furthermore, these wells appear to lie in the present flow path of planned downgradient wells and are close (~00 ft) to the trench. 
As-built diagrams and geohydrologic information for all three existing wells are presented in Appendix A. 

Installation of New Characterization/Monitoring Wells

Four new wells are planned to monitor the 216-B-63 trench . Planned well locations and depths of these wells are presented in Table 3.1. The purpose of these wells is to 1) provide downgradient ground-water quality information from the upper portion of the unconfined aquifer, 2) provide a means of evaluating the hydraulic properties of the aquifer, 3) provide information needed to define the subsurface stratigraphy beneath the site, and 4) provide samples to determine the moisture content of the unsaturated zone. 
Because the unconfined aquifer is relatively thin (20-30 ft) in the vicinity of the 216-B-63 trench, all four wells will be drilled into the uppermost basalt flow (Elephant Mou~tain Member). Total depths should be within the range from 255 to 265ft. Drilling to basalt will allow aquifer testing of the full saturated thickness of the unconfined aquifer. Furthermore, these wells will provide information on the hydrostratigraphic units, direct i on of ground-water flow , and water quality within the unconfined . aquifer . 
3. 5 

Justification for Locations

Locations of the new wells are along the western end of the 216-B-63 trench (Figure 3.1). Three of the wells (#1, 2, and 3) are located west of the trench in order to provide the minimum number of detection wells required (three) in the case where ground-water flow is parallel to the trench , as it appears to be. However , because water-level data in t he vicinity of the trench are limited, the true flow direction may not be exactly parallel to the trench; it may instead be at a slightly acute angle to the trench. If th i s is the case, then either well #4 , located south of the trench, or the planned wells 2-01 and/or 2-03 north of the trench can serve as detection wells. 
In order to prevent excessive dilution of contaminants by the ground water (EPA 1986), the wells will be placed close to the trench . Each of the four wells is planned to be located within 200 ft of the trench , for the following reasons: As liquid wastes move vertically through the vadose zone, the contaminant plume will spread laterally. This spreading will be greatest atop aquitards and/or along lithologic contacts between sediments of differing particle-size distribution . Initial moisture analyses from samples The final and exact locations of the monitoring wells are contingent upon their ability to not interfere with underground or overhead utilities, any nearby burial sites, or potential high-contamination zones . 
Problems may result with the installation of wells #3 and 4 because of their proximity to the backfilled ditches that parallel the 216-8-63 trench (see Figure 3.1). Any new wells drilled in this area will be closely surveyed and monitored with respect to past waste-management operations . The history of these ditches has been summarized by Maxfield (1979). 
The 216-8-2-1 ditch, the ditch closest to the 216-8~63 trench, was an unlined trench 15ft wide at ground level, 6ft deep, and approximately 3500 ft long . The ditch, which received 8 Plant process cooling water from April 1945 to November 1963, was backfilled in 1964 after a radioactive leak occurred . The leak resulted in the gross contamination of the head end of the 216~8 -2-1 ditch with cerium-rare earth fission products (principally cerium-144). The contaminated surface of the ditch was either scraped clean or covered with clean soil. When plants growing over the buried ditch were found to be contaminated in 1969-1970, a 10-mil-thick layer of plastic sheeting 32 ft wide and 2400 ft long was placed above the trench as a root barrier . Then approximately 18 in . of sand followed by 4 in. of gravel were placed over the plastic sheeting. 
A new ditch, 216-8-2-2, was dug parallel to the 216-B-2-1 ditch when the older ditch was abandoned. Like the original ditch, the 216-8-2-2 ditch was also an unlined trench approximately 15ft wide at ground level, 6-8ft deep , and 3500 ft long and designed to transport water ~rom 8 Plant to the 216-B-3 pond. The trench was abandoned in March 1970 after an estimated 1000 curies of strontium-90 were accidentally released from B Plant to the 216-B-2-2 ditch and 216-B-3 pond. Like the older ditch, the 216-B-2-2 ditch was covered to ground level and a similar root barrier emplaced over the first 2400 ft of the buried length of the ditch. Cooling water from B Plant was subsequently diverted to the 216-B-2-3 ditch currently in use . 

3.3.5.2 Drilling and Well Installation

A schematic diagram of a completed ground-water monitoring well is presented in Figure 3.2. Procedures concerning geologic sampling and inspection of well construction are given by Last andLiikala (1987) andPNL (1989). The wells will be drilled with the cable-tool drilling method. Cable-tool drilling is desirable because 1) drill cuttings are easily contained (important in contaminated material), 2) moderately to well representative geologic samples can be collected, 3) moisture samples can be collected from above the water table using drive-barrel techniques, 4) disturbance to the borehole wall is minimized, 5) a straight and plumb borehole is produced, and 6) the borehole can be kept open until final construction. 
The drive-barrel method of sampling is the preferred method for the unsaturated sediments, because it provides relatively intact and representative geologic samples in comparison with the hard-tool method, which tends to pulverize and mix the sediments. Both above and below the water table, split-barrel samples, which provide the most representative samples, may be collected occasionally to provide samples for permeameter and bulk porosity testing. 
Sediment samples collected during drilling will be monitored periodically for radioactive and hazardous contamination. If the sediments are contaminated, they will be handled, contained, transported, and disposed of in accordance with existing Westinghouse Hanford procedures. 
Temporary carbon-steel casing will be driven to the well's total depth as each borehole is advanced. When the water table is reached, ground-water samples will be collected and the following contamination indicator pa~a meters will be analyzed after sampling: 1) total organic carbon, 2) gross alpha, 3) gross beta, 4) gamma scan, 5) nitrate, and 6) iodine-129 . In addition, manganese, chromium, nickel, and iron ~!ill be analyzed to determine baseline chemistry conditions for these constituents before beginning wellcompletion activities. 
If concentrations of the first set of six constituents exceed the limits stated in the Effluent Monitoring Plan, which will be written before hydrologic testing begins, aquifer testing will not be conducted until proper treatment and disposal of pumped water is available. If concentrations of these constituents are below the limits stated in the Effluent Monitoring Plan, an 8-in. telescoping well screen will be emplaced and aquifer testing will be conducted. At the completion of aquifer testing, the final well casing and screen will be installed and the temporary steel casing will be removed as the filter pack and annular seal materials are emplaced . The minimum nominal diameter of the temporary casing at the bottom of the well will be 8 in. 
To help prevent introduction of contaminants into the borehole, the drill rigs and peripheral equipment (such as dri l l tools, cables, and temporary casing) will be steam-cleaned before arriving onsite and between wells. During drilling in the zone to be sampled, the addition of water to the borehole will be kept to a minimum or avoided to prevent nonrepresentative water from mixing with the ground water . 

Well Construction

A schematic diagram of a completed well is presented in Figure 3. 2. Procedures concerning geologic sampling and inspection of well construction are given by Last and Liikala (1987). The State of Washington's WAC 173-160, "Minimum Standards for Construction and Maintenance of Wells," was used for guidance for designing the wells. The monitoring well network and design presented here represent an initial attempt to characterize the ground-water conditions. Additional wells with a different design may be added later. 
Final wells will be constructed of 4-in.-inside-diameter, 304 stainlesssteel casing, and continuous-slot well screen. Final well screen lengths will span the upper 15 ft of the aquifer. This ~till also permit sampling of the upper portion of the aquifer and allow detection of both immiscible constituents that might be floating on the water table and dissolved constituents near the water table. No dense constituents (sinkers) are anticipated, the hydraulic gradient is not expected to have a significant vertical component, and the ratio of horizontal to vertical anisotropy is greater than 10 ( Graham et al. 1981) . The width of the screened interval will allow for possible future fluctuations of the unconfined aquifer from 3.10 variations in discharges to B Pond. The bottom of the screened interval will lie approximately 5-15ft above the base of the aquifer (i.e., the top of basalt). This will allow detection of constituents near the bottom of the unconfined aquifer. The screen length will be limited to 15ft to minimize excessive dilution of the samples. 
A 10-slot screen is expected to be used for the wells at the 216-B-63 trench. The onsite geologist will determine the filter pack size and screen slot size based on guidelines outlined by Last and Liikala (1987). Sand filter packs will be placed in the annulus between the 8-in. telescoping screen or the temporary (8-in.) casing and the permanent (4-in.) casing and screen as the temporary casing is withdrawn. If a telescoping screen is used during the shallow well aquifer tests, it will be left in the hole. The sand filter pack will be placed from total well depth to approximately 3 ft above the top of the screen, except where the well is drilled to a depth deeper than the screened depth. In wells drilled more than 2 ft below screen depth, bentonite will be placed from the total depth of the borehole to 2 ft below the bottom of the screen. 
A 2-to 3-ft-thick bentonite pellet seal will be placed on top of the sand pack. The annulus between the bentonite pellet seal and 18 ft below ground surface will be filled with bentonite. Cement grout will then be installed to within 2 ft of the ground surface. The well casing will extend 1 to 2 ft above ground surface and will be protected by an outer steel casing and a locking cap. The casing will be set into the ground and cemented in place with a 4-ft by 4-ft concrete well pad. All protective casings will be permanently marked with well identification numbers. 

Well Development

All wells will be developed following completion. Development water will be monitored and handled according to an Effluent Monitoring Plan, which will be prepared before water is removed from the well. Wells will be developed by surge-and-bail technique, overpumping, or any other techniques deemed necessary until turbidity is less than 5 NTU and sediment content is less than 8 mg/L. If the water cannot be developed to a turbidity of less than 5 NTU, an explanation will be documented by a qualified hydrogeologist. 

3.11

Other hydrochemical indicators, such as total iron and drilling fluid tracers will be monitored to assess the adequacy of development pumping for trace constituent sampling. 

Surveying

After monitoring well installation is completed, all wells will be surveyed for location and elevation by qualified surveyors. The elevation of the top of the stainless-steel casing and a brass marker in the concrete pad will be determined within 0.04 ft. A mark will be placed on the casing to indicate the location that was surveyed. The areal location will be determined to the nearest 0.5 ft. All measurements will be referenced to a common datum (preferably a Hanford Site datum). 

Monitoring Parameters

Ground-water samples will be collected during each quarter at a minimum for the constituents listed in Table 3.2. Monitoring of these constituents is required by 40 CFR Part 265, Subpart F. In addition, constituents from the long list in Appendix C will be analyzed once during the first year of sampling. 

HYDROGEOLOGIC CHARACTERIZATION

Hydrogeologic characterization will be conducted to describe the geologic and hydrogeologic conditions and properties that control contaminant flow paths. Work performed will follow approved procedures, in accordance with a Quality Assurance Project Plan approved by PNL and Westinghouse Hanford that meets U.S. Environmental Protection Agency guidance of QAMS 005/80 (Stanley and Verner 1983). 
Data collection and interpretation will focus on geology, geochemistry, hydrogeology, hydrochemistry, ground-water monitoring, and ground-water modeling. The characterization will be performed during and after construction of the planned ground-water monitoring network. An outline of the work to be performed is included below. Information obtained from the existing wells and wells drilled at the 216-8-63 trench will be integrated into the characterization and interpretation effort as well. The 3.12 . . 

3.13

characterization effort is a discovery process and data collection in particular areas may expand or decrease at the discretion of Westinghouse Hanford, depending on the information obtained. 

Geologic Characterization

Geologic characterization will include a lithologic description of borehole materials, a variety of physical and chemical laboratory analyses, and geophysical borehole logging (gross gamma log). 

Geologic Sampling

Geologic samples will be collected at 5-ft intervals and at changes in lithology. Guidance for geologic sample collection is provided by Last and Liikala (1987). Samples will be collected with a drive barrel in the unsaturated sediments whenever possible. No drilling water or other material will be added to the borehole during drive-barrel drilling unless necessary and approved by the well-site geologist, so that perched-water zones can be detected, representative moisture samples can be taken, and water chemistry will not be affected. If hard-tool drilling is necessary, a baile.r will be used to collect the sediment samples. Split-barrel samples will be collected where the aquifer materials are expected to be heterogeneous (containing materials with hydraulic conductivities ranging over several orders of magnitude), or where a potential confining layer is encountered. Other split-barrel samples may be collected on an ad hoc basis. The geologic samples will be archived for possible future analyses. 
Samples for moisture content determinations will be collected at 5-ft intervals and at moist or wet zones, wherever drive-barrel techniques are used and/or the moisture contents are considered representative. 

Lithologic Description

The well-site geologist will log tHe sediments and samples as they are collected at the drill site. Detailed 1 ithologic descriptions of geologic samples will include color, texture, sorting, mineralogy, roundness, relative calcium-carbonate concentration, consolidation, and cementation. Besides a lithologic description, information on drill logs. will document drilling and well-construction information plus the locations where special samples (e.g., 3.14 • moisture content} were collected. Procedures for documentation, collection, and description of geologic samples have been presented by PNL (1989). 

Laboratory Analysis

Geologic samples will be analyzed in the laboratory using the following test methods: 
• sieve particle size • pipette and/or hydrometer analyses 
• permeameter testing 
• calcium carbonate content • moisture content • bulk porosity • petrography • x-ray diffraction • x-ray fluorescence
• atomic absorption analysis 
• hazardous chemical analysis • radionuclide analysis . Some of these tests will be performed on every 5-ft sample (e.g., sieve particle size, calcium carbonate), while other tests apply to particular types of samples. Table 3.3 summarizes the frequency, limitations, and requirements for samples to be analyzed by the various methods. 

Borehole Logging

After each casing is emplaced and when the monitoring wells have been drilled to the final depth, the borehole will be geophysically logged with a gross gamma log. Procedures for geophysical well logging that are approved by Westinghouse Hanford will be used. The primary purpose of the logging will be for qualitative stratigraphic interpretation and correlation. Specifically, the gross gamma log is useful as a method of confirming the presence of fine-grained sedimentary layers, which normally produce a higher 3.15 --- -"'~-eono"'""'"""" -.-re!JUior lniONola • • gamma activity than coarse-grained sediments. Another potential use is to identify zones of subsurface contamination by gamma-emitting radiation~ After completion, each well will be viewed with a downhole video camera to ensure that the well is clean and undamaged. 

Data Interpretation and Presentation

Following an analysis and interpretation of the geologic data collected during the installation and initial monitoring of wells, an interim site characterization report will be prepared. In this report, the detailed stratigraphy in the immediate vicinity of the 216-B-63 trench will be presented in both narrative and graphic (i.e., cross sections, fence diagrams, contour maps) forms. Appendices will present the results of field and laboratory analyses, including geochemistry, lithology, moisture content, grain-size distribution, mineralogy, and petrology. An interpretation of the lithologic characteristics at each well will be presented based on sample analyses plus the visual inspection of the gross gamma log. Any gross gamma logs used previously shall be marked 11 Uncalibrated 11 and the logs will be properly labeled to identify the well environment at the time of logging. Maps showing the thickness and elevation of the various stratigraphic units will be updated to reflect the new data. The geologic setting will be discussed in relation to potential contaminant flow paths. Information from the adjacent Low-Level Burial Ground waste-management area characterization activities (Last et al. 1989) will be integrated with data from this effort. 

Hydrogeologic Characterization

Hydrogeologic characterization will include in situ aquifer testing to determine hydrologic properties and the determination of the rate and direction of ground-water flow in the vicinity of the 216-B-63 trench. These data will also be summarized in an interim site characterization report. 

Aquifer Testing

If the amounts of contamination in the ground water are below drinking water standards, aquifer testing will be conducted in the four new wells. These tests will provide estimates of the hydrologic properties (i.e., 3.17 transmissivity, hydraulic conductivity, storativity). of the aquifer. Aquifer tests have already been performed on two wells upgradient from the 216-B-63 trench. The results of these tests were presented in Table 2.6. This information will also be used to make estimates of the direction and magnitude of ground-water flow at each well location. The purpose of aquifer testing is to determine the large-scale hydraulic characteristics of in situ geologic materials. A carefully designed field testing program is essential to optimize the collection of hydrologic data. 
Possible aquifer-test methods include bailer•, step-drawdown, 8-to 24-hour constant discharge, and 8-to 24-hour recovery tests. The actual time of the constant discharge test will depend upon site-specific field conditions. A trained geologist or hydrogeologist will determine when to end each constant discharge test. Observation wells will be used wherever possible to estimate storativity and vertical anisotropy values. A pretest analysis based on an estimated range of transmissivities will be conducted to determine the type of test and the size of pump n1ost suitable to the given field situation. The aquifer test will not be performed until a pretest trend has been established for a period of time equal to the duration of the test. Aquifer test procedures have been presented by PNL (1989). 
Proper disposal of discharge water from pumping tests can be a problem at hazardous waste sites. Ground water will be monitored and handled according to the Effluent Monitoring Plan, which will be written before water is removed from any well. testing will not continue disposed of. 
If ground-water contamination is detected, until the water can be properly treated and aquifer The analytical method to be applied to the time-drawdown data will depend on the responses observed in the pumping wells and available observation wells. If both pumping and observation well data are available, hydrologic parameters will be determined by methods identified by Neuman (1974Neuman ( , 1975) ) or Weeks (1969). If observation wells show a response and the pumping well partially penetrates the aquifer, it will be necessary to evaluate the distances from the pumping well to the observation well, the thickness of the aquifer, and the percentage of partial penetration, and consideration will be 3.18 given to analysis methods such as those in Neuman (1974, 1975} or Weeks (1969). The Neuman method of analysis evaluates the delayed-yield response of an unconfined aquifer to estimate vertical anisotropy, transmissivity, and specific yield. The Weeks method of analysis evaluates transmissivity, storativity (or specific yield), and anisotropy in confined or unconfined aquifers, taking into account partial penetration effects of the pumping well and the observation well. 
Pumping well data will undergo Theis and Cooper/Jacob analysis (Lohman 1979) to estimate transmissivity at the pumped well. Extreme care must be taken in interpreting data from these wells because the saturated thickness of the aquifer is relatively thin (20-30 ft). If drawdowns exceed !0% of the saturated thickness, a correction must be made before the data can be interpreted. The equation used to correct the drawdown is reported by Fetter (1980, p. 290). Boundary analysis will also be performed if the data show positive or negative deviations from the type curves. 

Determination of Ground-Water Flow Paths

Water levels will be measured in the four new monitoring wells and in several existing wells in and around the 216-B-63 trench to calculate the elevation and configuration of the water table. The direction of groundwater flow will be determined from these data. The degree of uncertainty associated with both the water-level measurements and the calculated groundwater flow directions will also be evaluated. As discussed in Section 2.3.3, the direction of ground-water flow is expected to change over the next decade, as a result of the diminishing effects of B Pond on local groundwater flow. 
Water levels in wells adjacent to the 216-B-63 trench will be measured at a frequency of at least every 3 months. Water levels may be measured more often if trends or ground-water fluctuations occurring at shorter intervals are suspected. They may also be measured more often if the data yield ambiguous results or the volumes of artificial recharge change significantly. 
The surface of the water table and an interpretation of the direction of ground-water flow will be reported annually as required by 40 CFR Part 265, Subpart F. 

3.4.2.3 Data Interpretation and Presentation

Hydrogeologic data, interpretations, and recommendations will be presented in an interim site characterization report after well installation and initial monitoring are completed. Specifically, this report will include I) descriptions of hydrostratigraphic units, 2) water-level data and watertable maps, 3) test data and results of analyses, 4) as-built diagrams of wells, 5) hydrochemistry data, and 6) recommendations for further characterization or construction of additional monitoring wells, if necessary. 
The data will be used to evaluate whether the characterization effort and the ground-water monitoring system are adequate to define the hydrogeology in the vicinity of the trench. The hydrogeologic data will be integrated to form an initial conceptual model of the ground-water flow system{s) in the vicinity of the 216-B-63 trench. Components of the model will include the determination and description of hydrostratigraphic units, the ground-water flow paths and their possible changes over time, estimates of ground-water velocity, unsaturated zone conditions as they relate to the ground-water monitoring system, and hydrochemical characterization. 

SAMPLING AND ANALYSIS

Ground water from the four new monitoring wells and two existing RCRA ground-water monitoring wells {299-E27-8 and 299-E34-2) will be sampled quarterly for one year and semiannually thereafter. HydroStar~(a) sampling pumps will be installed in the four new wells soon after construction is complete. The ground-water samples will be analyzed for the parameters listed in Table 3.2. Water quality samples will be analyzed by United States Testing Company (UST). After one year of quarterly monitoring, background levels for these parameters will be determined and compared with downgradient water quality results. The data will be analyzed to evaluate the ground- 3.20 
• will be made either to continue quarterly monitoring of the same wells• and analytical parameters, or to modify the monitoring well network and/or increase the parameters analyzed. 
The samples will be analyzed according to the methods and procedures given in UST (1986). Sample analyses must meet federal (40 CFR Part 265, Subpart F) and state (Ecology 1986) requirements. Sampling, preservation, and chain-of-custody procedures are included in Appendix C. 

STATISTICAL ANALYSIS OF GROUND-WATER MONITORING DATA

This section discusses the method of establishing background and the statistical methods that will be used to evaluate the water-chemistry data. 

Methods

Quarterly samples will be collected for one year from the four new and two existing ground-water monitoring wells (299-E34-2, 299-E27-8) for chemical analyses for the constituents listed in Table 3.2. The first set of samples will be collected after all the new wells have been completed, developed, and had sampling pumps installed. Also, once during the first year of sampling, ground-water samples will be analyzed for additional constituents listed in Appendix C. 
After one year of quarterly monitoring, background levels for indicator parameters will be determined and compared with downgradient indicator parameters. The data will be analyzed to evaluate whether ground water is affected by the 216-8-63 trench. 

Establishing Background

The approach used for establishing background values for the 216-8-63 trench will be based on the results of quarterly water-level measurements of all nearby wells for one year. As of March 1988, the ground water appears to be moving west-northwest, approximately parallel to the trend of the 216-B-63 trench (see Figure 2.13). Under the present flow regime, two existing wells (299-E34-2 and 299-E27-8) can be used as background wells. Accordingly, new wells #1, 2, and 3 would be considered downgradient wells (see Figure 3.1). 

3.21

The present ground-water flow direction, however, will probably only continue as long as the area is under the influence of the ground-water mound centered beneath B Pond. The direction of ground-water flow beneath the 216-B-63 trench will likely change, over time, once B Pond is decommissioned. As a result, other wells may have to be used to determine background levels in the future. Ground-water levels will be closely monitored to determine if and when it is appropriate to shift to the use of a different background well(s). 
Recent analytical results from wells 299-E33-l and 299-E34-2, presented in Appendix B, suggest levels in the ground water are already above the drinking water standards for nitrate. Therefore, data from upgradient wells will have to be evaluated against the results from downgradient wells to determine what the true background 1 evel s are. [stabl i shment of background must factor out the effects of contamination from upgradient sources to prevent premature initiation of an assessment-level program. 
During each quarterly sampling period, four samples will be obtained from each well for analysis of indicator parameters including total organic carbon and total organic halogen, field pH, and specific conductance (Table 3.2). In addition, background levels wil' be established for chloride, iron, manganese, phenols, and sodium. Background summary statistics (mean, variance, and coefficient of variation) will be calculated from five quarters (16 months) of data for the indicator parameters from upgradient wells. The method used for calculating summary statistics will depend on the distribution of the data and the presence of any data that are reported as less than the limit of detection. Replicate summary statistics will be calculated each quarter. Background comparison summary statistics will be calculated from the five sets of quarterly summary statistics. 

Evaluation of Data

Wells will be sampled at least twice each year after background has been established. A minimum of four replicate measurements will be obtained from each downgradient well for the indicator parameters, and the arithmetic mean and variance will be calculated for the indicato~ parameters for each sample. 

3.22

The Student's t-test will be used to determine statistically significant changes in the concentration of indicator-parameter constituents of downgradient wells relative to initial background concentrations or values. This comparison will consider each of the wells in the monitoring system individually. Wells downgradient of the trench will be evaluated against the upgradient well(s). For three of the indicator parameters (specific conductance, total organic carbon, and total organic halogen}, a single-tailed Student's t-test will be used to test for significant increases over background at the 0.01 level of significance. The difference test for pH will be a two-tailed Student 1 S t-test at the overall 0.01 level of significance. 

Notification and Reports

Reports to be provided during the course of the ground-water monitoring program are summarized in Table 3 

GROUND-WATER QUALITY ASSESSMENT PROGRAM

An assessment-level ground-water monitoring plan will be implemented if a release of hazardous constituents is detected by the indicator-evaluation monitoring system. The decision to implement the assessment-level plan will be based on the criteria just described. The assessment-level ground-water monitoring plan will be certified by a qualified hydrogeologist or geotechnical engineer. This plan will address the following: 
• Additional ground-water monitoring wells to be drilled, as necessary, to determine the nature and extent of contamination. The number, location, and depth of each well will be identified. 
• Additional ground-water samples to be collected and analyzed at a minimum for constituents presented in Table 3.2. 
• Detailed procedures to describe how analytical results will be evaluated, including the analysis of any previously gathered ground-water quality information. 
• A schedule for implementation of the assessment-level ground-water monitoring plan. 
A sample outline for an assessment-level ground-water monitoring plan is shown in Table 4.1. At sites where contaminants are known to have entered the ground water, regulations require that the rate and extent of contaminant movement be determined (40 CFR Part 265,Subpart F). The methods used to determine these variables will depend on the quantity and quality of the field data base. The methods will include installation of additional monitoring wells and field testing, continued chemical analyses of selected constituents in existing and new well installations, ground-water flow and contaminant transport modeling, and statistical evaluation of chemical analyses. 

Nature and Extent of Contamination

Analytical data from new and existing wells will be evaluated to determine the specific hazardous and nonhazardous constituents and levels of these constituents found in the ground water. In addition, the hazardous constituents will be statistically evaluated to determin~ which of these constituents 4.2 exceed background concentrations. The data will be further evaluated to determine if the source of contamination is the 216-B-63 trench or some other waste-management facility. 
The lateral extent of contamination will be estimated by developing contour maps of concentrations of the various constituents. The concentrationsof hazardous constituents will be contoured to estimate the actual contamination distributions; the concentrations of nonhazardous constituents will be contoured and evaluated as indicators of ground-water and contaminant movement. The rate and extent of contamination will be conceptually evaluated based on existing data and modeling results. 

Rate of Movement

The rate of contaminant movement will be estimated initially using values of hydraulic conductivity determined from aquifer testing, the hydraulic gradient determined from water-level measurements, and an estimated effective porosity based on the nature of the geologic material. This will provide a gross estimate for application in modeling studies and additional monitoring programs. The rate and extent of contamination will be conceptually evaluated based on existing data and modeling results. The results of the evaluation will provide insight into the areas of greatest uncertainty and thus those areas where additional data are needed. Additional wells and field testing will probably be necessary to quantify the rate and extent of contamination. 

Additional Well Installations

Examination of the analytical results obtained under Phase I, coupled with preliminary flow and transport modeling, will provide the information from which the locations of additional monitoring wells will be determined. Data from these additional wells will be used to further define and quantify the rate and extent of contamination. 

Additional Field and Laboratory Testing

Samples will be collected from new and existing wells and analyzed for known hazardous waste or hazardous waste constituents and other constituents that will be useful for evaluating the rate and extent of contamination. The 4.4 primary focus of additional field or laboratory testing will be those parameters with the highest uncertainty and that most affect flow and transport. These factors will be evaluated by preliminary modeling and sensitivity analyses. Further field and/or laboratory testing may be conducted to obtain additional information on: 
• hydrostratigraphic facies distribution • hydraulic conductivity • porosity • hydraulic head distribution • retardation characteristics • dispersivity
• other contaminant sources. 

Modeling

Simple analytical models that include terms for dispersion, retardation, and radioactive decay will be used to simulate the extent and rate of contaminant plume movement, based on assumed hydraulic and retardation parameters. Numerical models that can accommodate heterogeneities in the hydrogeologic system and more complex transport conditions will also be used, if necessary, to estimate the rate and direction of flow under various hydrologic conditions. The results of modeling will be used to choose the locations of additional wells, to identify data needs and help in planning for their collection, to provide additional insight into the conceptual model of the northeastern portion of the 200-East Area, and to help in planning any corrective action, if necessary. 

CONTINUED ANALYSIS AND EVALUATION

This section discusses the review and evaluation that will be conducted on the initiation of assessment-level monitoring. It also discusses the required notifications and reports. 
4.5 

Review of Methods and Procedures

If contamination in ground-water monitoring wells is verified, the monitoring system, data evaluation methods, and sampling and analysis procedures will be reviewed. This review will evaluate whether the indicator-evaluation monitoring system is adequate to distinguish contamination derived from a source other than the 216-B-63 trench. The method of establishing background will be reviewed for its appropriateness within the hydrogeologic system. This review will consider what potential effects of other facilities may result in trends in background water quality that have not been taken into account to establish the background. Finally, the review will evaluate the current sampling and analysis procedures and whether sample bias may result from inadequacies in the procedures. 

Review of Sampling Parameters and Frequency

The sampling plan will be reviewed to evaluate whether the appropriate parameters are being analyzed and whether the frequency is adequate. The assessment-level monitoring program will require additional analysis of any hazardous constituents that have been detected. During assessment-level monitoring, the sampling frequency will be increased to quarterly until it is determined that no hazardous waste from the 216-B-63 trench has entered the ground water, or until final closure of the facility, as required by 40 CFR Part 265, Subpart F. 

Notification and Reports

Table 4.2 lists the reports and notifications that must be submitted if the facility is suspected of affecting ground water as determined by the Student's t-test. In addition to the notifications and reports provided during the indicator-evaluation program (Table 4.2, part 1), submittal of additional notification and a plan on how to assess the contamination to EPA and Ecology (Table 4.2, part 2) is also required. 
Records of the ground-water quality analyse~ .• associated ground-water surface elevations, and the various data analyse~ {including the statistical analyses) will be provided in these reports. 0~~~~~--1 Well Completion Report/Title Ill Inspection Ust Project um Prr?,g. gcRA M.cl\.i\.,-,," 

Dnller

~fa.IY t::!JP" '' lt~~i f' ,, ((.,kl • •l c_" J.!l Coordinates I...) !IU !1"" 1. Wu'l r.u- Dnlling Co. Drilling Flurd '£oo r U U l \ !""" "'""'' ,, ' -'• "' Date Started O.lrl'-1 Co":'jtted :11 / :Af':;.;. 5A tN:..f...f::. :, .ST :.-t!... 
'i •.
1o a~u .. z.,q ':."-~ --- 

PERFORATIONS

=• 1 -, --
Jf" -~--'• , -l} r-' •.,., '-:.~t b ~ _ , r#-_, ~'Sj~tibil --- :..! ,:, 
•o•• -•i'-~
;11 .. ~\ :., :"r:")'-\ c,? ... ~vfk ~~~~~ ~ti:.j Well Number ~9-'"q"l...;...•--f..._..:}._J....._-__.x,__ __ Geologist AccJtA),o J I.AJL, .:J,.p 
Page __L of ..:S.. Drilling Co. 1\o..i :.:>1'" F !Ill ictec 1 " " 1-Laf'I~,.J 
Casing Elevation ___ ,u,:r"..!.L:..(), .:::8_' ----------l Geologist ~ e Chamc/<• R~m• .. ?ls. "7 Wlutc R \:lzcf'Ground Elevation ---~( §:!:;.:..:'1.:..:•".!.:.;::..'-----------l Drilling Fluid --:"' ..r.-:.;.O::..:..I=_;. •@~-:.:.'..:..~----------Date Started J/J'l/ 'l7 
'K R.
l:.lt•l ~C111!!!l:!A. o.' -'•lc' ]./2..2/27 Drawdown ---:---------• --- -----------•---- -----------•---- -------------•----
Approved By _..:..:::M:.:A:J< ____ Date _...;l~l ulz;.;u..:..f.:;.;P.:... .. 
.. 

AS-BUILT DIAGRAM

Well Number -~;...:....~4_-....;,E-..3'-Ll:...•...;;t::.;,_ _ _ _ _ Geologist 

r-------------------------------------------------------T~ ~~---~~--------~r---~----------------------------+~~

J:p, However, because these wells are all currently upgradient (east) of the trench, data from one downgradient well (299-E33-I8) are included for completeness, even though it is more than 1000 ft from the trench and may not be representative of ground-water quality immediately downgradient of the trench. 

~~~~------~----------~~--~--~--+-+-----~-L--~~---------------------------+~ J ~----------------------~---------++-----------~~----------------------

Ground-water samples from the 200-East Area wells have been analyzed for the various constituents listed in Table B.l, although not all samples have been analyzed for all constituents. The most recent concentrations of constituents present in samples from the four wells are listed in Table 8.2. 
The "less-than" flag indicates that samples were below the detection limit All samples will be cooled to 4•c upon collection. 
---------------------------------------usn11Um, f i
Constituents grouped together are analyzed by the same method. 
Detection limit units except where indicated. 



  have migrated from the site to ground water • Presenting an initial hydrogeologic characterization plan. S. Department of Energy's Hanford Site is located in southeastern Washington State (Figure 2.1). The Hanford Site is used for nuclear reactor operations, spent fuel reprocessing, and radioactive waste management. The fuel reprocessing and radioactive waste management facilities in the 200-East and 200-West Areas (the Separations Areas) are operated by Westinghouse Hanford . 




  FIGURE •2.1. Separations Areas Location Map 




  pipe and operating gallery (chemical makeup tank farm) 211-B station steam supply SN-172 ammonia tank heating coil Various stream t r ace lines TK-101, -102 aqueous makeup tank heating and cooling coils (211-B) HEDTA tank heating and cooling coi ls (211-B) TK-SF-121, -122 t anks heating and cooling coils From DOE (1987). (b) Includes neutralized demineralizer recharge effluent. 




  FIGURE 2.3. Location Map of the Hanford Site Within the Pasco Basin Showing Major Structures Within the Basin 




  FIGURE 2.4 . 




  FIGURE 2.5. Generalized Geologic Columns for the Separations Areas 




  FIGURE 2.6. Borehole location Map in the Vicinity of the 216-8-63 Trench 


FIGURE

  FIGURE 2.7. 




  . ~:.~:. ••~~~~~; ••:::~•~~ . . :\"~: ... . , : ..... y;5.:• :i::••::". ) 


1 -

 1 FIGURE 2. 9. 


t 1 I

 1 . '":, ... .... . ••.:.: ;,.: I . ( .. ~.,.. : ; . . -.. ~-,-' I ..........,4os I I .... I 200 EAST -J 




  ""ETRI C ""ULTIPLY ELEVATION IIII IIY 0 liMI TO OBTAIN ELEVATION lml ' ffom Seh•U • nd Ammerm• n , . . 


FIGURE 2 .

 2 FIGURE 2.10 . Depth to the Water Table in the Vicinity of the 216-B-63 Trench, March 1988 


FIGURE 2 .

 2 FIGURE 2.11 . Base of Unconfined Aquifer (top of basalt) in the Vicinity of the 216-8-63 Trench 


5

 5 Well location and Water- 


• 3 .

 3 0 PHASE I. GROUND-WATER MONITORING PROGRAM This plan has been developed in accordance with RCRA, as described by 40 CFR Part 265, Subpart F, and Ecology (1986) to establish a ground-water monitoring plan for an indicator-evaluation program for the 216-B-63 trench and, if necessary, to initiate an ground-water quality assessment program. + 3.1 OBJECTIVES The objectives of the ground-water monitoring program for the 216-B-63 trench are to: 


FIGURE 3 . 1 .

 31 FIGURE 3. 1. Existing and Planned Wells Near the 216-8-63 Trench 




  during drilling at the 216-A-368 crib indicates that this lateral spreading has occurred at least 100 ft from the crib but not as far as 200 ft from the crib . 


FIGURE 3 .

 3 FIGURE 3.2. Schematic Diagram of a Completed Ground-Water Monitoring Well 




  otherwise noted, levels are in 1'9/L ~ parts per bill ion (ppb). (c) Maximum (or minimum pH) levels not yet established. 




  Huo"'OC:--....... and .. _ (KAF) _.......,_,. ...... ( ................ -. ... ..,_....) ............... """"' ... ,..,..-. 




  lor9W poti>C:O" n)'<lr.,.trotioropr.c •~• ---. ... &otpiiYO cl>orKIIt- ... ffiCIOI lotico; ~,.,..,.,,.~. ...... ~ 10-ficoliOI"I __.,_ HydlooO"o"'¥..,.... IWi! -~ IIMni!IICI ..... , . _ . . '"'"'-~1""11 bocl<~-ol ""''"""' <--"'-• lnlle! ooolo ar -.. ,_ ... ..,.pill. ' ' "" --~ •--. ...... ,_ --)' 1 . . . . . bld<gnourocl-• ol m&t.rlll .--. ........ u_ • ...,...,._., ~-hyllr ..... _, ~ ............ ,~ "•--•-___ , .., . . ,_, 




  ----~•-SS. DB, HT ........... ..._ ... s-..•-•• SS. DB. HT -••l"loi<>Oir -Selootod_ ... SS. DB.HT --- s....,.o;..,..,.. • " .................... ...-ola" 11'"""" ........ 




  water quality beneath the 216-8-63 trench. After this evaluation, a decision (a) HydroStar is a registered tradename of Instrumentation Northwest, Redmond, Washington. 


• 4 .

 4 0 PHASE II. INITIATION OF GROUND-WATER QUALITY ASSESSMENT PROGRAM This chapter discusses the development of criteria that would dictate notification of regulatory agencies and initiation of an assessment-level monitoring program. The notifications required by 40 CFR Part 265, Subpart F, are presented and the assessment-level monitoring plan is outlined. 4.1 INITIATION CRITERIA As indicated in Chapter 3.0, ground-water samples from all monitoring wells will be tested quarterly for interim primary drinking water standards, ground-water quality parameters, ground-water contamination indicator parameters, and site-specific parameters for the first year. Under the indicator-evaluation monitoring program, ground-water surface elevation data will be evaluated at least annually to determine if the existing monitoring wells are appropriately located. If the evaluation indicates that existing wells are no longer adequate, the ground-water monitoring system must be modified to bring it into compliance with regulations (40 CFR Part 265, Subpart F). Statistically significant changes in both the upgradient and downgradient wells must be tested for validity and documented {40 CFR Part 265, Subpart F). Statistically significant increases (or pH decreases) from initial background levels are those that surpass a 0.01 level of significance using the Student's t-test. If significant increases {or pH decreases) are noted in the downgradient wells, those wells must be immediately resampled, and the samples split in two and analyzed by independent laboratories to ensure that anomalous concentrations are not the result of laboratory error. If this second set of samples confirms significant downgradient increase (or pH decrease), EPA and Ecology must be notified in writing within 7 days. Upon this notification, the assessment-level ground-water monitoring program outlined below shall be initiated . 4.1 




  CONSTRUCTION DIAGRAMS FOR EXISTING WELLS Drilling logs from the three existing wells within 1000 ft of the 216-B-63 trench are included here for reference . The following well logs were reviewed and are included in this appendix : existing wells are recent wells drilled by PNL to monitor the Low-Level Burial Ground waste-management area northeast of the 216-B-63 trench {Last et al. 1989) . The drilling and well-construction information presented in this appendix, including well completion reports, as-built diagrams, and geologic and geophysical logs, is from Last et al. (1989). Information presented on well 299-E34-1 is limited to a single diagram • A.1 


~ 5 ~

 5 fl't">f'. o\... f '.)() I~ t-.!. J', ,(_ Casmg Elevation '•"; ~" . Geologist ~M , ... :2"~'"'''' t. e • ~ • ' ' ~ l.,., 'lt:.t io...> la. ... J ~ .. .;.~, ) Cable Tool D 'DQ'-~C'"' ' H a'••!Xl. ...... . :; ... Completron Depth .Jf4c' 4'/ f.,. icuJia .._3 ~ ... ,-~ • • I 


•

  FIGURE A.l. Well Completion Report for Well 299 -E27 -8 




  I :.t ---r•-.•. a. ~l>: 0 •;:~.:.lQ~~ •~.,..)• .. _iS_ !?.2-~;.;J .. . ::-~-.. ~i\AU)'I (..r/.1\ •J( Stki~ r~-• Mf.u ,, .. r:,. 'C ~ , .) Q.;...,.\>• .-~~I.'T'£ 5~tNt2'1 o•:•. co;_•q.;:;.:~ ~",i..~J~ \... e::~~ :,_.~ e:..:-o~d:•o-....,, ~ 1.,, _...._ . ' . . ...,~.>•~••.~. 0 r:~ :r-Y.-~., ~o:o.b'o:•~ Jy•A• ~ ft:::.o-•~:~=~~ • .. ~ ,:A 'ti ~ :.~~.~~~~ .. ~ ... .:~ El~ ~ f: ~ .. !.•I SI&..'T'"'I Sd::::z::H2 (,. ~ •~~}j ~tr,> '7o•o"~0:..:•~•c.~1:, j1-l A't .JJ _1&_(i,o-c.Cfo-c r•cr: 




  FIGURE A.2 As-Built Diagram for Well 299-E27-8 (page 1 of 2) 


1 A

 1 FIGURE A.2. 




  ---------IType '8" ~ .. lu ... : •. ,,,, ,J.,i,,: .____l:d!f:>.. Depth.,;," 24o."'42.'l £"'e>'l1" ,;;o. •~' l .-1"' • u" 




  FIGURE A.6. As-Built Diagram for Well 299-E34-2 (page 1 of 2) 




  .M.,.....,....fN' ~ ~ ~ -----• ------• / ' ~ ..j 




  ,i\.••\.••''"• ........ , .~/.•: r---1---+--~---+----r---+---r--1---t---1•----+---r--1----r---l-----+- 




  DATA LISTINGS AND SUMMARIESThis appendix presents recent chemical data available from all existing wells within IOOO ft of the 216-B-63 trench. These include: 


TABLE 2 .

 2 3. Borehole Inventory of Wells Near the 216-B-63 Trench 


		ea:eo.E	<XXJf[)NAlES	~TEO SURF. ELEV. OPEN NTERVAl	~EDAOUIFER	TOTAl DEPTH DEPTHTOBI ELEV. TOB
		E26-1	N44774	W48025	05/48	617 .25	217 -227	Hanford Fonnation		225	392
		E27•1	N42833	W50440	04/48	681 .05	262-331	Hanford Formation		~	<349
		E27-7	N43100	W48150	10/82	?	241 -281	Hanford Formation	281	?	?
		E27•B•	N44496	W49742	09/87	637 .83	226-246	Hanford Formation		257	381
		E27•9•	N44484	W49122	08/87	629 .21	219•239	Hanford Formation		245	384
		E27•1 o•	N44520	W48522	08/87	624.47	213•233	Hanford Formation		240	384
		E28•1	N43480	W52355	11/4 7	685.20	277-311	Hanford Formation		~	<360
		E28•5	N43980	W51989	03/48	672.32	259-304	Hanford Formation		307	365
		E28•8 E 28•1 o E33•11	N44603 N44000 N46444	W53127 W53000 W52452	09/57 08/61 02/54	668.52 677.67 620.27	250-294 257-309 ?	Hanford Formation Hanford Formation Hanford Formation		296 315 230	373 363 390
		E33•12	N46436	W52850	09/53	623.00	305-385	Rattlesnake Ridae interbed		232	391
		E33-14	N46223	W52177	1 2/53	622.12	212•227	Hanford Formation		228	394
		E33-15	N46066	W52751	02/53	627.40	222-237	Hanford Formation	251	239	388
		E33-16	N45887	W52815	01/53	635 .51	220-244	Hanford Formation		247	389
	N	E33-17	N45894	W52529	10/53	631 .65	220•244	Hanford Formation		244	388
	........	E33-18	N45624	W52825	02/50	643 .84	240 • 260	Hanford Formation		258	386
	0'\	E33-19	N45744	W52629	06/56	639 .00	217 -248	Hanford Formation		249	390
		E33-20	N45664	W52629	07/56	640 .87	225 -251	Hanford Formation		254	387
		E33-21	N45321	W53856	04/57	663 . 43	235 -275	Hanford Formation		279	384
		E33-27	N45470	W53220	07170	656 .01	?	Hanford Formation		~	~
		E34•1	N45129	W50023	06/61	629 . 42	215-230	Hanford Formation		235	394
		E34•2•	N45076	W50048	09/87	630.80	220 240	Hanford Formation		241	390
		E34•3•	N45337	W48488	08/87	611.52	193•213	Hanford Formation		213	399
		E34•4•	N46791	W49419	08187	587 .56	157•177	~		176	412
		E34•5•	N46791	W50014	08187	590.79	171 -191	Hanford Formation		189	402
		E34•6•	N46784	W50609	08/87	597 .83	175•195	Hanford Formation		194	404

TABLE 2 . 3

 23 

. (contd) EO=IeO..E WATER DEPTH WATER 
TABLE MEASI .

 MEASI R:D SAT. THICK. SIEVE DATA NATGAM. 


									LOG DRILLERS LOG	l..SED
		E26-1 E27-1 E27-7 E2T•B• E27•9• E27-1 o• E28-1 E28-5 E28•8 E28-1 0 E33-11 E33-12 E33-14 E33-15	210.92 275.24 a 232.46 223.68 218.54 a 266.69 362.99 272.04 a 217.47 216.65 a	406.33 405.81 a 405.37 405.53 405.93 a 405.63 405.53 405.63 a 405.53 405.47 a	3/31/88 3/31/88 a 3/31/88 3/31/88 3/31/88 a 3/31/88 3/31/88 3/31/88 a 3/31/88 3/31/88 a	14.3 >56.8 a 24.4 21.5 21.9 a 40.6 32.5 42.6 a 14.5 11.5 a	y y N y y y y y y N y y y y	y N N y y y y y y y y y y y	y y y y y y y y y y y y y y	y y N y y y y y y y y y y y
	~	E33-17 E33•18 E33•19 E33-20 E33-21 E33-27 E34•1	226.65 239.31 a 235.57 262.82 a 223.83	405.00 404.53 a 405.30 400.61 a 405.59	12/11/87 11/9/88 a 2/4/86 11/9/88 a 3/31/88	17.4 18.5 a 18.3 17.0 a 11 .6	y y y y 80-260' N y	y y y y y N y	y y y N y y y	y y y y y N y

N E33-16 a a a a y y y y ....... 
TABLE 2 .

 2 4. Bulk Major-and Trace-Element Geochemistry of Sediment Samples of the Hanford Formation from Well 299-E34-2 


			49-50	145-150	De(2th~ ft	230	Average(a)
		Major Elements (wt%)			
	..	Si Al K Ca Ti Fe c	28.9 7.04 1. 56 ( ) 3.83 c 0. 68 ( ) 5. 57(C) 0. 22 c	30.4 6.61 1.76(b) 2. 70(b) 0.35(b) 3. 13 0.14		29.5 {b) 6. 52 1.50 3. 19 0. 57 5.03 0.09	29 .64 ± 6.92 6.92 ± 0.30 1.59 ± 0.22 3. 28 ± 0.48 0.55 ± 0. 13 4. 53 ± 1. 01 0. 12 ± 0.07
		Trace Elements (ppm)			
	,	v Cr Mn Co Ni Cu Zn Ga As Se Br Rb Sr y Zr Nb Mo Ru Rh In Sn I Ba La Ce Pb u	229 30 901 <47 18. 2 44 . 6( ) 87 . 7(C) 17.9 c 4.42 <0.95 <0.91 55.1 377 26 . 0 158.o(c) 10.76 3. 02 <4 .8 <5 . 1 <6 . 7 <7 . 3 <12 744 25 43 8. 0 <3 . 9	92(b) . 55 6I8(b) <34 ( ) 24.7(~) 20.7(b) 46.0 14.6 4. 53 0.99 <0. 77 66.5 411 (b) 17.7(b) 106.6 (b) 7.24 <1.5 <4 . 8 <5.2 <7.0 <7.2 <12 810 37 42 9.8 <3.9	161 <25 843 <43 21.4 43 . 5 72 . 7 15. 5 3.79 <0.92 <0.89 51 b 356( ) 24 . 2 139. 1 9.94 2. 73 <4 .9 <5 . 2 <6.6 <7 . 5 <12 809 <22 48 9. 5 <3 .6	171 ~c~S) 805 ± 182 NC 20 . 0 ± 3. 3 37.1 ± 15 .9 69 . 7 ± 12 .8 15 .8 ± 1.3 4.27 ± 0.95 NC NC 56.3 ± 11.3 402 ± 37 24 . 1 ± 4. 0 139.9 ± 16.8 10.39 ± 1.17 NC NC NC NC NC NC 795 ± 84 NC 43 ± 11 9. 2 ± 1.9 NC
	.,. .	{a) Average of 13 samples of Hanford formation from 200-East Area. (b) More than la below average of 200-East Area samples . (c) More than la above average of 200-East Area samples .

(d) NC = not calculable . 
f'O<IIfrlllllll H)( A tiO.., OtACTI..,AttD 1.-1•

  
		IS• st(A)
	••••12	• 10-40
		• 5t• SI
		WEST LAKE
		Ill .OJ 47)
		CAll( "" TN POND
		• 51 5518 / CI
		.. S7

TABLE 2 .

 2 5. Ranges of Hydraulic Properties in the 200-East Area 


	Interval Tested	Hydraulic Conductivity (ftLdl	Storativit~	Porosit~ (%}
	Hanford Formation	2,000-10,000	0.07	30
	Middle Ringold Unit	9-230		
	Lower Ringold Unit	1-12	0.002	
	Source: Graham et al. 1981 .		
		2.27		



  ....... _________ _ 


	Contour Interval • 20 ff
	• Existing RCRA Ground-Water Monitoring Well
	o Non-RCRA Ground-Water Monitoring Well
	3i Well Location and Thickness (ft) @ Basalt Above Water Table
	NP -Not Present

FIGURE 2.12 . Saturated Thickness of the Unconfined Aquifer in the Vicinity of the 216-B-63 Trench , March 1988 
TABLE 2

 2 
	.6. Hydraulic Properties From Wells Near the
	216-B-63 Trench (from Last et al . 1989)
		299-E27-8	299-E34-2
	Transmissivity (ftZ/d)	380,000(a)	(a) 39 , 000(b) 114,000(b c) 66,000(d) 85 , 000
	Estimated Aquifer Thickness (ft)	25	16
	Hydraulic Conductivity ( ft/d)	15,200(a)	(a) 2,400(b) 7,100(b c) 4,100(d) 4, 250
	Specific Yield		o. 5<c , d)
	(a) Specific-capacity analytical method of Theis
	et a 1 . ( 1963) . (b) Constant discharge analytical t est method of

Table + -

 + Table Elevation (ft Above Mean Sea level) Ground-Water Flow Path 



~Basan Above Water FIGURE 2.13. Water-Table Surface and Directions of Ground-Water Flow in the Vicinity of the 216-8-63 Trench, March 1988 
TABLE 3 .

 3 1. Planned Well Locations and Depths for the 216-B-63 Trench 


	Well ~	Tvpe of Well	Approximate Location (Hanford Coordinates) Water (ft ) • Borehole (ft) Approximate Approximate Depth to Depth of	Length of Screen (ft)
	1	Shallow monitoring	N45250 W51780	235	255	15
	2	Shallow monitoring	N45150 W51900	240	260	15
	3	Shallow monitoring	N44990 W51890	245	265	15
	4	Shallow monitoring	N44910 W51560	245	265	15

TABLE 3 .

 3 2. EPA Interim Primary Drinking Water Standards from 40 CFR Part 265, Subpart F(aJ 


	Interim Primary Drinking Water Standards	Maximum Level
	Arsenic	
	Barium	
	Cadmi urn	
	Chromium	
	Fluoride	
	Lead	
	Mercury	
	Nitrate (as N)	
	Selenium	
	Silver	
	Endrin	
	Lindane Methoxychlor Toxaphene	
	2,4-D	

2,4,5-TP Silvex 
TABLE 3 .

 3 3. Laboratory Analyses to be Performed Characterization 


	~obtr<olo•Y	......... u.
	Sl..,ng	Partjc!O-IIU
		<IIYbJOianol_..,
	Hydf<lmowr	Partjo;lo-otro -• ............. ""'*"' (t.o .. 1111 onc1 cl-r)
	p .............	S.~n•dl'll«ouk
		c"""""*vl'r

Anliyoto -..... .s"'II'' ......... p .. ~••-ea~ ... -... ~ ' Mo<Oturo co_,.... w •• Potrogrol)hy ~.~ ...... <IHI!enll ._..... ...... X-roy .,,.<11ona.,_ .. 


  . .....-....... .,.._,.....,. 


		Bompto "'""'""'""'"' LIMUotlono ..... -.. ...... ..-........ , M-............ ~-• "NO Ptooy lor hf""'ullc p ............ groo.nd• --• ,..._ . ANgr-: --a _, --\.lndlollk-niO<t o.wmno .... or ooolo !1'--wat<or _,,_ ...
		••*
		-• ,...,_., ---
	ss • spill•--INihocl 06 ........ w .... -n"IO"tiOd
	HT • horcl•tool -	,......,.

......... -..--:~ "•-SO!Iaor_...., .. """"""' -llco-., ......... p ....... 01\'a1!QO"OphiC ....... -•-U""'OUOMI!ntoctEw-•--•~• _,,""'*"' ,,.,.ftcoftan: orOI.If>6."•-Soolo....,...., n•-- 
TABLE 3 .

 3 .4. 4. Reports Required by 40 CFR Part 265, Subpart F, for Indicator- 


	Evaluation Ground-Water Monitoring
	Submittal	Submittal Period
	First year of sampling only:	Within 15 days of completion of each
	Concentrations of interim primary	quarterly analysis
	drinking water standards, identi-	
	fying those that exceed the limits	
	listed in Table 3.2.	
	Concentrations and statistical	Annually by March I of following
	analyses of ground-water contami-	year
	nation indicator parameters,	
	noting significant differences	
	between upgradient and down-gradient wells.	
	Results of ground-water surface-elevation evaluation, and	Annually by March I of following year
	description of response if	
	appropriate.	
	3.23	

TABLE 4 .

 4 1. Sample Outline for an Assessment-Level Ground-Water 


	Monitoring Plan
	Introduction
	Background Information
	Facility Description
	Geology and Hydrology of 200-East Area Geology
	Hydrology
	Interim-Status Work Conducted to Date
	Scope and Description
	We 11 Network Sample Collection
	Water-Level Measurements Sample Analysis
	Data Handling and Verification
	Analytical Data Evaluation
	Quality Assurance (QA)
	Quality Control (QC) Results
	Sampling Schedule
	Constituent Lists
	Constituents Detected
	Constituent Concentrations
	Graphs of the Data
	General Observations
	QC Program Results Factors Potentially Affecting the Data

Planned Expansion of Ground-Water Monitoring Program Planned Approach Evaluation of Existing Data Installation of New Monitoring Wells Collection and Analysis of Geologic Data Collection and Analysis of Water Quality Data Hydrologic and Water Quality Interpretation Method of Determining Rate and Extent of Contamination Movement Schedule of Implementation Reports and Notifications

  

ReferencesAppendices 4.3 
TABLE 4 .

 4 2. Reports and Notifications to be Submitted During the Assessment-Level Monitoring Program (Phase II) 


	4.6

• 


  2 





  •,01.t !.\ Well Number ' 2 . .'~'1, f '2..., -s 


	Location	L.lh ~	.,.J	Temporary Well Number	L)f~



  Well Completion Report/Title Ill Inspection UstProject ZOO~ Rc.2A M..M.jkx-' 1• " ' \JJdO.:., 


	Location Driller Of,-.. A,.,Ojj D.1 sl-. ~.,, Z.otJ -~r ...J	Temporary Well Number Coordinates U"f~ I)#(. v.J'71 ,..c/t:~, H/A
	245	Basalt	245
	Not to Scale	Well Completed: 6/61	Logged by Dnller

Casing Elevation: 629.42 ft Depth to Water• 123.84 ft (12/86) FIGURE A.4. Su11111ary Lithologic and Well-Construction Log for Well 299-E34-l "A.7 Well Number _...;"";::....,...;.q.:.. '!•_..:.::E:....:~:..ll_ . _...;~:.....---------1 


  Mud _...;.H:..::IA:.,_ _ _ _ _ Drilled Depth 241 'la.' br.f•w s .. ,.~,, .. 


		o~kr	,	I	'	'"' I •			
		DRILUNG METHOD				COMPLETION DATA
	Rotary Air Cable Tool	N;A D	~'~lA	H D-:J.'ft.S'	Completion Depth	Z:3<;	1 11 11	-	~./ ,J ~ .. ,..!..,,c.



  Alp~oved By MA~ '(? Date ~~?wf..:!'f ~ !'z":::.,~c.....p 


	Other ______ u.;....;t~J.;;.... _ _ _ _ _ _ _ _ _ _ Static Water Level/Date	Completed _a /::.:, It:>.~ 2Z.l.S'' /7/:t.!ll f7
		CASING DATA
	Type	Size
		4'

_ _ _ ...;.~~•1..:..', ~-~~...; l...;.••:•...;.: _ _ _ _ _ _ _ _ _ -~~~...;.'-'------~o~'--to_...;~~o~':..:•...;~~~----_ _ ...;r:....:o~r.:.fx~~..~n~"';;.;::....:t..:..l.._( ------------_.;..;17._'_' _ _ _ _ _ _ _ l'l .:.. '-,--to 10'""' t.""' ~" c;~c.b ... .p •'!'l.•l.:c'ol ::~~,i 111" o' to -..,. -!;.c,,•..:. ,,_4...;. • ! ...., 1 ;,d_ .• _ -t s" :..~,~-r !:fic.b.1~ z..'/j..n 4-tJ o/'10'~'' 
TABLE B .

 B !. List of Possible Constituents Analyzed for in Separations Areas Ground-Water Samples Const i trJent Consti trJent Code 


			An-3lvsis Units --------	
	B78 m Ll3 ,_ .. •,.l "-' 4 • c::: B71 BSS Bl9 B20 r~72 C94 A-' '0 M7 C95 874 A36 H28 B25 cc•r, o. f'''. •.:.1.) A15 H3G po-_, A 54 ~55 A 56 A 57 A5-S A5':: AGO r:t:>) H37 :.••:; ~•-'-• H'" -V B30 BJ'1 AG" o;, L' '-' .l n.::: p•')'J •-" C49 B34 B35 B37 AOl H33 A37 B':lO "v B39 C51 B40 A74 A75 B08 B42 H21 Hl9 11'7'; CG3 024 C% A4f: C7';j c-:c-=-"u CBCJ A40 A4l .," H . .:. A39 B60 B82 B85 B53 B55 B54 B5i B53 &'59 H8G H88 H(•l A~G BG7 Bl5 A27 FG8 CG5 B7G B77 A63 CSG BB3 CG4 A49 A52 A33 H03 H04 HOG BB7 CSl H05 p.sG A18 p.ss C74 H07 C7l •A38 HOB 21.2	METB ISC D INC RES AM INO'tL B~'OF'Ht:N tJ. r:?::E>! ,:,r~ lIS::;::: ij I!RTOL IIIMBEN: IIIC!CGC.; ACE 'I ILE ACE:'ONE ACROLIN ACR'f IDE ~rCRI ILE ALIIR IN ALLYLAL [I!MPHAM -3-f:HC FALUMHf HM ITF.OL AnMGN IiJ ANILINE Hi'fl IOWf FHNTIMO ARAMITE AR!OlG AR122l AR123~ AIH:!42 AR12.;8 AR12S:4 AR1260 ARSENIC FARSEN! AU?.AM Ir'~ FBAR !UM BEt-l:AAN BEN.ZCAC FEHZENE f:E.~:r, lCi", f:£i;:r;.-w: ... BEND!NE BENZOPY BENZBFL BENZJFL BENZCHL BERYLAM FBERYLL t--BHC BIS2CHM P.IS2CHE BIS2E!H BIS2EPH B ISTHER BROMONE BROMORM BUTP.t.NP FCADM IU FCALC !'.! CARBIDE C~RBFHI CS-137 CHLORAL CHLOANE CHLORID CYANBRO CYANCHL 11[1[1 DDE [lrt'! d-~:HC DIBPH!H DIOPHTH D!PRNIT I! IBAHAC DIM HAN D !BAJAC 11 IBAEF'Y DIBAHPY Il!BH IF'Y DIBRME'I DIC:!IFM [t IC?f:CP II ILLr: !il DIEPHTH II IETHY [IIETROL 11 IHYSHF DIME!HO [I I!",PHTH DlNBENZ DIOXANE DIOXIN D !PHAM l DlSULfO ENDO! END02 ENDRIN ETHCARB ETHCYAN ETHMETH ETHME!S ETHYGLY ETHOX HI ETHMWE ETHYP.S/1 FLUORHN fLUORID fLUOROA FORMLN •~-BtiC GLYC!Df LOALPHA	f'?B PPB PPB p~•B ::-;: ?, Ff p;: Pf B pr Co r .c• PPB UG/G P?B ptot• "' FPB ppp. PPB PPB PP8 P?B PPB ptot• _., f'f'B PPB PPB Pf'B PfB PF'B F'PB Pf'B H'B P?B PPB PPB PPB PPB PPt. PPB PPB PPF: ' , C• r2r. PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB ?PB PPB PPB PPB PH PPI: p~•t: pt•'• • 1:• PPB PC!!L PPB PPB fF'B	4 ~ 4' -mE! thy 1 enet<i s c 2-ch lore 3fli 1 ine l 4_,6-.Hnitro-o-cresol .;;r,,j ;.31 ts 4--3-m inot•vohenv 1 4-b~?moph€myl' 9h~nyl ether -!:-;,: ~.roonenc.: 5-<: -~mlnO:ne:.:-.v 1 ;.-3-i: o;.•.:::o l u l 5-ni trc-o-T.olui•jlne 7, 12-di me thy lt•en::C -i hnti-;ncen~> 7H-dl::•en::o[c ,'j)c~rba::cle -Acetord tr ile ;.cetophenor.e Acrolein Acryl~mi.je Acrylonitrile Al.jr ir. All/1 -3lc.oho1. . A 1 P•/3, al O•l-3-d 1 n1et ny 1 phenethy 1 ami r.::o Alp.-..3-BI-It AluminrJm, filtered Amitrole Ammon1rJm 1on Ar.ilwe Antimony Anti~1ony, filtere.j Ar .:3ffil te Arochlor 1016 Arochlor 1:!21 Arochlor 12~:! Arochlor 1:!42 Aroch1or 1248 ~roch1or j254 Arochlor 26•) Ar~enic Ar:;enie, filtered A•Jr -3ni i ne B.3ri!Jill, filtHed Ber.::[ -3 hr.tr.r .;,cer.e Ber1::er~etho1l Ben:::l•jir,e Ben:::o (.3] f"r er.e 8en:::o(t,J luor.:nthene Ber.:::o[ jJfluor 3nthene Ben:::•j' 1 chloride Bery li-3m Beryllium, filtered Bet.3-BHC Bi s ( 2-chloroetho::y) ooeth.3ne Bis(2-chloroethyl) ether Bis(2-chloroisopropy1>ether E~;sc:z-ethylhe::y1 l pnthabte Bls(chloromethyl) ether

tlame ---------------------co: ~:~;:;.-. B:en:.[ c J.:.c r i •:l ir•o? E:en:::ene Ben:::ene, oji.ci•,loJrc.met!wl 
TABLE B .

 B !. (contd) 


	' •	Cor.sti t'Jent Code Ill A43 A44 E •Cr'! .__ C. 54 C5~ C53 A99 P.93 BOl H:;:l HO"=J B'::'4 C7~' A51 H4! H:32 C92 B95 H29 f!t}G A21 H38 B02 B03 P.t:;7 B'38 A34 A76 A81 H•J~ HlO C04 C05 C6G 1193 C07 A96 A30 A3! Cl9 Cl4 Cl5 C!G Cl7 C!8 C20 C21 C'1':1 C~3 A32 HII C.55 1 -. .J H:5 C93 en Cl2 C24 C46 C4:; H02 Consti t1Jer1t Co•je H'JI! B3G B4G B~5 .P(l --J_ cs•~• CIS':' C2G B!J4 C27 C28 C77 A70 C29 C57 H57 C30 199 Hl8 C7G C3l H30 C33 A65 181 C34 C35 034 C3G A22 H3S• H2S' H:!4 191 A03 H35 l:! l C9l C7:i' C78 C47 A1:;1 Cbl A23 H40 B73 A24 C40 AGG C4l HlG Hl7 CG9 CGB A35 A91 AG9 B09 BE B i 1 C48 H27 Bl3 B:::l Bl4 A71	Constituent N.3me p.ETA HEPTLOP. HEPTIDE !iEXCEE;•; i-!E:<CH'J." HE:\CCYC HEfi'CETH HEXACHL HEXAENE HYD!i:AZI HYDRSUL INI!ENOP ~10DOME! FIRON ISOBUTY !SOSOLE •:EROS EN LEAIJGF FLEAD FMHGNES iiALHYf!F: MALOl!.E FMANGAN MELPHAL MERCURY FMERCUR METHACR METHTHI METHAPY ,,ETHNYL METHLm: METHBRO METHCHL METHONE MEIZ Ii'IE hE!ACiff METMSUL METHPAR METHYCH METHIOU NNDIEHY NITRREA NI!RMET NNIURET NNIBUTY NNIDIEA NNIDIEt NNIDIME NNIMETH NNI'i INY NNJMORP NNINICO NNJPIPE PHENREA P9.DPYLA NAPHTHA U-CHEM FN!Cf:EL N rcor IN NITRATE NITBENZ NITRPYR TRIPHOS OTOLHYD OSMIUM Canstit~Jent N.ame FOSMIUM PBENZOU CHLCRES CHLANIL D I."iEAM-~ i•;_ I:E-:H~i i P~~~~AL:1.:: PARAIHI PEHTCHB PE'NTHCH PaiTCHN PENTCHP PERCHLO PERCENE PHEN!IN PHENOL Li'HENOL PHENINE PHOSPHA f'HTHES! HOI ASS PP.ONlBE P'fRHIIN F:ADIUM RESERP I RESORC! RU lOG SAFROL SELENUM FSELENI FS IL~'ER FSDD!UM CONDFLD S!RONUM FSIRON! SR 90 S7RYCHN SULFATE SULFIDE SiMTP.!N !E!RANE TETE?Yf< !HALlUM F!HALLI THIONOX TH !OUP.A TH!URAM TOLUENE TOLUDIA TC TIIS TOC TOX TOXAENE TRAI'IDCE TR!CENE TRCMEOL TRCMFLM TF:C?ANE TP.!SPHO	An-31 vs is Units --------UG/G f'P~ PPB . . :::-~ f• .. ~-P?B PPB fPB PPB PPB PCI/L MPN P?B PPB P?B PPB PPB ?P8 ppt; PPB PPB P?t-Pf•B PPB PPB PPB PPB ppt: PP!: PF'B PPP ?PS PH PPB PPS ppt: ?f"B PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP£: PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PPB PPB PC IiL TABLE B. I. (contd) Endrin Ethyl carbaRt'3te Ethyl cy-3r.ide Ethyl meth.'3cryl.3te Ethyl metr.aneS1Jlfon'3te Ethylene glycol Ethylel"le o;nde EthyleneiRiine Ethyleneth1o•Jr e-' 3 Fluor :3r,ther1e E' 1 'Jar 1de Ar,.~lvsis Ur1i ts An.3lvsis Units PCJ/L PPB ~:;.r, ' ' C• PPB PPB PPB PPB PPB prn: pf.E! PPB PPB PPB PPB PPB PPB ppp ?~'~ H8 PPB PH PPB PPB PPB pp;: PPB PPB PPB PPB PPP. F'PB PPB Pf'B PPB PPB PPB PPB PPB PPB PPB PPB PF'B f'PB PPB P?B PPB PPB PPB PPB ppp. PPB PPB PPB PPB UG/G UG/G ppp. PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB UG/L PPB F'f' r: Pf'B PPB PPB PPB m f'PE: PPB ppp. PPB f'PS PPB PCI/L PPB PPB PCI/L PPB PPB PPB PPB P?B UMHO f'PB PPB f"Cl/L Pf'~: PPB PPB PPB PPB .PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB r•PB

Fluoro:~cetic -'3Cid Form.:~.lir, G.:~.mm-:~-BHC G 1 yc i dy 1.'31 .jehyde Gross -3lpi"n B. 3 FVANADI VHIYIDE WARFR!N ii-X'tLE OPX'fl.E FZINC PHF!EL[I TABLE B. I. (contd) PPB P?B Consti t1Jent Lon'3 n:;.me 
TABLE B

 B 
			.2. (contd) TABLE 6.2. (contd) TABLE 8.2. (contd)		
	WELL • NAME 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27 -8 2-E27-8 2-E27 -8 2-E27-8 2-E27 -8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27 -8 2-E27 -8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 Z-EZ7-8 Z-EZ7 -8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27 -8 WELL NAME 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-B 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-B 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27 -8 2-E27-8 2-c27-8 2-[27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-[27-8 WELL NAME 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 2-E27-8 WELL NAME 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-! 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1	COLLECTION DATE 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 COLLECTION DATE 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 . 9/22/88 9/22/88 9/22/88 9/22/88 COLLECTION DATE 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 9/22/88 COLLECTION DATE 1/21/85 1/21/85 1/21/85 1/21/85 1/21/85 1/21/85 1/21/85 2/ll/85 2/12/85 2/12/85 2/12/85 2/12/85 2/12/85 2/12/85 3/!8/85 3/18/85 3/18/85	CONSTITUENT NAME METHYCH METMSUL MET PROP NAPHQUI NAPHREA NAPHTHA NICKEL NICOTIN NITBENZ NITPHEN NITRANI NITRATE NITRATE NITRPYR N ITRTOL NNDIEHY NN IBUTY NNIDIEA NNIDJEY NNIDIME NNIMETH NNIMORP NNINJCO NNIPJPE NNIURET NNIVINY OPXYLE OTOLHYD PARALDE PARATHI PBENZQU PENTACH PENTCHB PENTCHN PENTCHP PERC ENE PERCHLO PH-LAB PHENINE PHENOL PHENREA PHENTIN PHFIELD PHOSPHA PHTHEST CONSTITUENT NAME PI COLIN POTASUM PRONIDE PRO PYLA PROPYNO PYR1DIN RADIUM RESERPI RESORCI RU-106 SAFROL SELENUM SILVER SOOIUM SR 90 STRONUM STRYCHN SULFATE SULFIDE SYMTRIN TC TC-99 TETEPYR TETRANE TETRCHP TH10NOX THIURAM TOC TOC TOC TOLUOIA TOLUENE TOXAENE TOXLDL TOXLOL TRCMEOL TRCMFLM TRCPANE TRANDCE TOXLOL TOC THIOURA THALlUM TETRCHB SULFATE CONSTITUENT NAME TRIBUPH TRICENE TRICHLB TRIPHOS TRISPHO TRITIUM U-CHEM U-CHEM VANAOUM VINYIOE WARFR!N ZINC a-BHC b-BHC d-BHC CONSTITUENT NAME ALPHA BETA C0-60 CS-137 N03-ION RU-106 TRITIUM N03-10N ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60	LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG < < < < < < < < < LESS THAN FLAG	ANALYSIS VALUE ' 7.0000E+OO l.OOOOE+O! l.OOOOE+OI l.OOOOE+OI 2.0000E+02 l.OOOOE+Ol l.!OOOE+Ol l.OOOOE+02 l.OOOOE+OI S.OOOOE+Ol S.OOOOE+Ol 7.3!00E+03 7 .4300E+03 l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+O! l.OOOOE+Ol I. OOOOE+Ol l.OOOOE+Ol l.OOOOE+O! S.OOOOE+OO l.OOOOE+Ol 2.0000E+03 2.0000E+OO l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol !.OOOOE+Ol 5.0000E+Ol S.OOOOE+OO l.OOOOE+03 7.8000E+OO l.OOOOE+Ol l.OOOOE+Ol 5.0000E+02 l.OOOOE+Ol 7.9000E+OO l.OOOOE+03 l.OOOOE+Ol ANALYSIS VALUE ' ' l.DODDE+OI 7.0000E+D3 l.ODOOE+01 l.DOODE+04 8.DODDE+D3 5.00DDE+02 1. 4600E-01 l.DOODE+01 l.OOOOE+01 -1.1100E+01 1.0000E+01 S.OOOOE+OO l.OOOOE+01 1. 5600E+04 9.0200E-02 1.8600E+02 S.ODOOE+Ol 4.7300E+04 l.OOOOE+03 1.0000E+Ol 1. 9900E+04 1.1300E+OO 2.0000[+00 S.OOOOE+OO l.OOOOE+Ol l.OOOOE+01 S.OOOOE+OO l.OOOOE+01 2.0000E+02 4.0000E+02 5.0000E+02 6.0000E+02 7.0000E+02 l.OOOOE+01 S.OOOOE+OO l.OOOOE+OO 4.0000E+OO S.OOOOE+OO 7.0000E+OO l.OOOOE+01 l.OOOOE+01 1. OOOOE+Ol l.OOOOE+Ol l.OOOOE+01 4.6200[+04 ANALYSIS VALUE ' !.OOOOE+01 S.OOOOE+OO !.OOOOE+01 !.OOOOE+01 1.0000E+01 J.OSOOE+04 2.6000E+OO 2.8500E+OO 2.8000E+01 1.0000E+01 !.OOOOE+01 2.8000E+01 !.OOOOE-01 !.OOOOE-01 ANALYSIS VALUE . UNITS ANALYSIS UNITS PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB ANALYSIS UNITS PPB PPB PPB PPB PPB PPB PC!/L PPB PPB PC!/L PP8 PPB PPB PPB PC!/L PPB PPB PPB PPB PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PC!/L PPB PPB PPB PPB ANALYSIS UNITS PPB PPB PPB PPB PPB. PCI/L UG/L UGIL PPB PPB PPB PPB PPB PPB ANALYSIS ' 1.6500E+OO PCJ/L 8.7600E+OO PC!/L 4.5100E+OO PCl/l -3. 7800E+OO PCI/L 1.4000E+Ol ' MG/L 1.4400E+Ol PC!/L 3.9000E+02 PC!/L 1. 4000E+01 MG/L 3.0900E+OO PC!/L l.OOOOE+Ol PC!/L 3.0500E+OO PCl/L 3.2000E-Ol PC1/L -3.0100E+Ol PC!/L l.8900E+02 PC!/L 2.5900E+OO PC!/L -7.8500E+OO PC!/L -5.0900E+OO PC!/L	•
			B. 12 B. 13 8.15			

< !.OOOOE-01 PPB ..., ,.....,., 0 f\I"''JIOO ~ 011(' < ' nnnnt:" nt nno .:.-c..:.,-o ~1'-'-IUO y-on1.. .J. •VVVVL-V.lccuTABLE B.2. {contd) 
TABLE B

 B 
			.2. (contd)		
	WELL NAME	COLLECTION OATE	CONSTITUENT NAME	LESS THAN FLAG	ANALYSIS ' ANALYSIS VALUE ' UNITS I	
	2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34 -I 2-E34-1 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-1	3/18/85 3/18/85 3/18/85 3/18/85 4/01/85 4/01/85 4/01/85 4/01/85 4/01/85 4/01/85 4/01/85 5/14/85 5/14/85 5/14/85 5/14/85 5/14/85 5/14/85 5/14/85 6/24/85 6/24/85 6/24/85 6/24/85 6/24/85 6/24/85 6/24/85 8/05/85 8/05/85 8/05/85 8/05/85 8/05/85 8/05/85 8/06/85 8/16/85 8/16/85 8/16/85 8/16/85 8/16/85 8/16/85 8/16/85 9/05/85 9/05/85 9/05/85 9/05/85 9/05/85 9/05/85	CS-137 N03-!0N RU-106 TRITIUM ALPHA BETA C0-60 CS-137 N03-!0N RU-106 TRITIUM ALPHA BETA C0-60 CS-137 N03-10N RU-106 TRITIUM ALPHA BETA C0-60 CS-137 NITRATE RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM N03-ION ALPHA BETA C0-60 CS-137 NITRATE RU-106 TRITIUM ALPHA BETA C0-60 CS-137 N03-!0N RU-106	< < < < < < < <	2.4100E+OO 1.8000E+01 -2.3500E+OI 2.9700E+02 1.8700E+OO 9.0800E+OO -1.0200E+01 1.0300E+OO 2.8000E+OO -4.!000E+01 8.4100E+02 1.8300E+OO 8.0000E+OO -7.0800E+OO 9.5900E-01 2.3000E+01 O.OOOOE+OO 5.3200E+02 5.2000E-01 6.4900E+OO -2.8300E+OO -2.0700E+OO 9.3800E+OO -3.2200E+01 3.4400£+02 I. 7300E+OO 1.1300E+Ol -3.9500E+OO 5.5100E+OO 8.6800E+OO -3.2200E+01 2.9000E+Ol I. 3500E+OO ' PCl/L PCI/L MG/L PC'i/L PCI/L PC!/L PCI/L PCI/L PCI/L MG/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L MG/L PCI/L PC!/L PCI/L PCI/L PCI/L PCl/L MG/L PCI/L PCI/L PCI/L PCl/L PCl/L PCI/L PCI/L PCI/L MG/L 6.5700E+OO PC Ill -1. 7000E+OO PCI/L 3.1000E+OO PCl/L I. 3300E+Ol MG/l -3.2600E+01 PCI/L 6.8800£+02 PCI/L 2.4400E+OO PCI/l 5.4300E+OO PCI/L -2.5300E+OO PCI/L O.OOOOE+OO PCl/L -3.2000£+01 MG/L	• •

< -1.3300E+OI PCl/L B. 16 
TABLE B .

 B 2. (contd) 


	WELL NAME	COLLECTION DATE	CONSTITUENT NAME	LESS THAN FLAG	ANALYSIS VALUE . UNITS ANALYSIS I
	2-E34-l 2-E34-l 2-E34-l	9/05/85 10/15/85 10/15/85	TRITIUM ALPHA BETA	<	1.3100E+03 I. 5800E+OO 8.5300E+OO	PCI/L PCI/L PCI/L
	2-E34-I 2-E34-1 2-E34-l 2-E34-l 2-E34-I	10/15/85 10/15/85 10/15/85 10/15/85 10/15/85	C0-60 CS-137 N03-ION RU-106 TRITIUM	< < <	4.5200E+OO -5.5100E+OO 3.5000E+Ol 3.2100E+01 3.3000E+02	PCI/L PCI /L MG/L PCI/L PCI/L
	2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-[34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-l 2-E34-1 2-E34-l 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1	11/11/85 11/11/85 11/11/B5 11/11/85 11/11/85 11/11/85 11/11/85 12/18/85 12/18/85 12/18/85 12/18/85 12/18/85 12/18/85 12/18/85 1/07/86 1/07/86 1/07/86 1/07/86 1/07/86 1/07/86 2/11/86 2/11/86 2/11/86 2/11/B6 2/11/86 2/11/86 2/19/86 3/12/86 3/12/86 3/12/86 3/12/86 3/12/86 3/12/86 4/10/86 4/10/86 4/10/86 4/10/86	ALPHA BETA C0-60 CS-137 N03-ION RU-106 TRITIUM ALPHA BETA C0-60 CS-137 N03-ION RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRIT!UM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM N03-ION ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137	< < < < < < < < < < < <	2.0500E+OO 7.2500E+OO -7.0800E+OO 6.3900E-OI 3.BOOOE+01 2.4000E+OI 2. 9400E+02 2.6600E+OO 6.8200E+OO -3.5400E+OO 3.8300E+OO 5.8000E+OI -2.1200E+OI 3.2100E+02 7.1700E+OO 5.!600E+OO 4.0300E+OO 5.1100E+OO 4.2000E+OI 5.4400E+02 2.3700E+OO 5.7100E+OO 2 .3600E+OO 5.6900E+OO 4.1500E+OI 5.0700E+02 4.4000E+OI 2.4500E+OO 3.3400E+OO 4.5200E+OO -4.1300E+OO 8.7400E+OO 7.3700E+02 2.2700E+OO 6.7500E+OO 3.0300E+OO 8.3100E+OO	PCI/L PCI/L PCI/L PCI/L MG/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L MG/L PCI/L PCI/L PCI/L PC!/L PCl/L PCI/L PC!/L PCI/L PCI/L PCI/L PC!/L PCI/L PC!/L PC! /L MG/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PC!/L PCI /L PCI/L
			B. 17			

TABLE B

 B 
				.2. ( contd) TABLE 6.2. (contd) TABLE 6.2. (contd) TABLE 8.2. (contd) TABLE 8.2. (contd)				
	•	WELL NAME 2-E34-I 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-E34-1 2-£34-1 2-£34-I 2-£34-I 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-I 2-£34-I 2-£34-1 2-E34-l 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-E34-l 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-E34-l 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 2-£34-1 WELL NAME 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-I 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-1 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-E34-l 2-E34-1 2-E34-l 2-E34-1 2-E34-l 2-E34-l 2-E34-I 2-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-E34-l 2-E34-1 WELL NAME 2-E34-l 2-E34-I 2-E34-l 2-E34-l 2-E34-I 2-E34-l 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-l 2-E34-l 2-E34-I 2-E34-1 2-E34-l 2-E34-l 2-E34-I 2-E34-l 2-E34-I 2-E34-l 2-E34-1 2-E34-l 2-E34-I 2-E34-l 2-E34-I 2-E34-I 2-E34-l 2-E34-I 2-E34-l 2-E34-1 2-E34-I 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-I 2-E34-I 2-E34-l 2-E34-I WELL NAME WELL NAME 2-E34-I 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-! 2-E34-l 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-l 2-E34-1 2-[34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-El4-l 2-E34-! 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-l 2-E34-! 2-E34-I 2-E34-l 2-E34-1 2-E34-l 2-E34-I 2-E34-l 2-E34-l 2-E34-1 2-E34-I 2-E34-l 2-E34-! 2-E34-I	COLLECTION DATE 4/10/86 4/10/86 5/14/86 5/14/86 5/14/86 5/14/86 5/14/86 5/14/86 6/09/86 6/09/86 6/09/86 6/09/86 6/09/86 6/09/86 7/01/86 7/01/86 7/01/86 7/0I/86 7/01/86 7/01/86 8/08/86 8/08/86 8/08/86 8/08/86 8/08/86 8/08/86 9/19/86 9/19/86 9/19/86 9/19/86 9/19/86 9/19/86 10/15/86 10/15/86 10/15/86 10/15/86 10/15/86 10/15/86 11/07/86 11/07/86 I 1/07/86 11/07/86 11/07/86 11/07/86 12/16/86 COLLECTION DATE 12/16/86 12/16/86 12/16/86 12/16/86 12/16/86 1/06/87 1/06/87 1/06/87 1/06/87 1/06/87 1/06/87 2/19/87 2/19/87 2/19/87 2/19/87 2/19/87 2/19/87 3/06/87 3/06/87 3/06/87 3/06/87 3/06/87 3/06/87 3/30/87 4/12/87 4/12/87 4/12/87 4/12/87 4/12/87 4/12/87 5/10/87 5/10/87 5/10/87 5/10/87 5/10/87 5/10/87 6/09/87 6/09/87 6/09/87 6/09/87 6/09/87 6/09/87 7/21/87 7/21/87 7/21/87 COLLECTION DATE 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 COLLECTION DATE COLLECTION DATE 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7 /2I/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/21/87 7/2I/87 7/21/87 7/21/87 7/21/87 7/21/87 7/ZI/87 8/13/87 8/13/87 8/13/87 8/13/87 8/13/87 8/13/87 9/15/87 9/15/87 9/15/87 9/15/87 9/15/87 9/15/87 10/07/87 10/07/87 10/07/87 10/07/87 10/07/87 10/07/87 11/10/87 11/10/87 11/10/87 11/10/87	CONST !TUENT NAME RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-!06 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA CONSTITUENT NAME BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM NITRATE ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM 1,1,1-T 1,1,2-T 1,1-DIC CONSTITUENT NAME 1,2-DIC 1112-tc 1122-tc 12-dben 123-trp 1234TE !235TE 123TRI !3-dben !35TRI 14-dben ACROLIN ACRYILE ALKALIN ALPHA ALPHA AMMONIU BENZENE BETA BETA BISTHER BROMONE BROMORM CARBIOE CHLBENZ CHLFORM CHLORIO CHLTHER CHMTHER C0-60 CONOFLO CROTONA CS-137 CYAN JOE DIBRCHL OIBRETH DIBRMET DIBUTEN DICDIFM OICETHY DICPANE OICPENE OIETHY DIOXANE ETHMETH CONSTITUENT NAME CONSTITUENT NAME FALUMIN FANTIMO FARSENI F8ARIUM FBERYLL FCAOMIU FCALCIU FCHROMI FCOPPER FIRON FLEAD FLUORIO FMAGNES FMANGAN FMERCUR FNICKEL FORMALN FOSMIUM FPOTASS FSELENI FSILVER FSOOIUM FSTRONT FVANADI FZINC HEXACHL HEXCBEN HYDRSUL !OOOMET KEROSEN LFLUORO LHYDRAZ M-XYLE METACRY METHACR METH8RO METHCHL METHONE METHTHI METHYCH NAPHTHA NITRATE NNOIEHY OPXYLE PEN TACH PENTCHB PERC ENE PH-LAB PHENOL PHF!ELD PHOSPHA PYRIDIN RU-106 SULFATE TC TETRANE TETRCHB TOC TOLUENE TOXLOL TRANOCE TRCMEOL TRCMFLM TRCPANE TRICENE TRICHLB TRITIUM VI NY! DE ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137	LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <	ANALYSIS VALUE !.6000E+01 5.9700£+02 2. 1800£+00 5.9100£+00 -2.8300£+00 ]. 3800£+00 4.1200£+01 6.3300£+02 2.2600£+00 7.0300£+00 9.6000£+00 -1.1300£+01 3.0400£+01 4.4800E+02 2.0400£+00 6.7700£+00 -1.4500£+01 7 .3300£+00 5.7200£+00 5.0200£+02 2.2600E+OO 4.8IOOE+OO ]. 4100£+00 2.1400£+00 -!.5000£+01 3.6000E+02 2.0700£+00 6.2900£+00 3.0400E+OO -4.7900£+00 -1.0700£+01 -4.0400£+02 2.0600E+OO 7.0900E+OO -!.6000E+OO -6.6600£-01 -!.6900E+Ol 1.3300£+02 3.7300£+00 5.8300£+00 2.2800£+00 4.8300£+00 3.6900£+01 9.2000£+01 1.7600£+00 ANALYSIS VALUE 6.9600E+OO 1. !400E+OO 1. 7200E+OO 2.IOOOE+01 3.5400E+O! 2.4700E+OO 9.3300E+OO 4.2200E+OO O.OOOOE+OO -l.B300E+Ol 2. 6300E+02 2.9400E+OO 1.0600E+Ol -2 .lOOOE+OO 1. 7100E+OO -5.7800E+Ol S.OOOOE+02 2.3300E+OO 9.9800E+OO 2.8000E+OO -B.SSOOE-01 -7.2000E+OO 2.5400E+02 2.2800E+04 2.4100E+OO 9.6000E+OO 3 .3900E+OO -5 .1700E+OO -8.8400E+OO 6.3SOOE+02 1. 9000E+OO 1.2100E+Ol 4.8SOOE+OO ' -3.7800E-Ol 3.4400E+Ol 9.9600E+02 2.2300E+OO 9.0800E+OO -l.OBOOE+Ol 3.4400E-01 -3.8400E+Ol 5.3500E+02 l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol ANALYSIS VALUE I.OOOOE+Ol I.OOOOE+Ol !.OOOOE+OI I.OOOOE+Ol I.OOOOE+OI I.OOOOE+Ol I.OOOOE+Ol I.OOOOE+Ol I.OOOOE+OI I.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol 9.2200E+04 !.8200E+OO -I. 8200E -0 I 5.0000E+Ol I.OOOOE+OI l.IOOOE+Ol !.8100E+Ol l.OOOOE+Ol I.OOOOE+01 I.OOOOE+OI I.OOOOE+01 I.OOOOE+Ol !.OOOOE+Ol 1.7200E+04 I.OOOOE+Ol I.OOOOE+Ol 3.0600E+OO 5.4600E+02 I.OOOOE+Ol 6.4000E-01 I.OOOOE+Ol !.OOOOE+Ol I.ODOOE+Ol I.OOOOE+Ol I.OOOOE+Ol l.OOOOE+Ol I.OOOOE+OI I.OOOOE+Ol I.OOOOE+OI l.OOOOE+OI 5.0000E+02 l.OOOOE+OI ANALYSIS VALUE ' ANALYSIS VALUE ' 1.5000E+02 l.OOOOE+02 S.OOOOE+OO 3.6000E+01 S.OOOOE+OO 2.0000E+OO 5.8100E+04 3.0000E+OO 1.0000E+01 1.1800E+02 S.OOOOE+OO 6.8200E+02 I. 7200E+04 I. 2000E+01 l.OOOOE-01 l.OOOOE+01 5.0000E+02 3.0000E+02 8.0100E+03 S.OOOOE+OO l.OOOOE+01 2.4900E+04 3.0500E+02 I. 3000E+01 I. 7000E+01 l.OOOOE+01 1.0000E+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+04 4.7000E+02 3.0000E+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 I. 9400E+04 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 J.DOOOE+01 J.OOOOE+01 7.6800E+OO J.OOOOE+01 7.0000E+OO 1.0000E+03 5.0000E+02 7.2100E+Ol 2.0500E+05 2.2400E+04 J.OOOOE+Ol 1.0000E+01 5.0300E+02 1.0000E+01 7 .1000E+OO 1.0000E+01 1.0000E+01 1.0000E+Ol 1.0000E+01 1.0000E+01 1.0000E+01 !.0200E+03 1.0000E+01 1.4300E+OO 8.7000E+OO 5.6500E+OO -I. 7200E+OO -1. 7500E+Ol 9.5600[+02 2.1500E+OO 8.0100E+OO 3.3900E+OO 4.8200E+OO 4.1000E+Ol !.OOOOE+03 2.6600E+OO 8.8200E+OO 6.8300E+OO 9.9600E+OO 9 .0300E+OO !.1300E+04 2. 0900E+OO 9.2100E+OO 2.0200E+OO -6.0400E+OO	ANALYSIS UNITS PC!/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PCI/l PCI/L PCI/L PCI/L PCI/L PCI/L PCI/L PC!/L PCI/L PCI/L PCI/L PCI/L PC!/L PC!/L PCI/L PCI/L PCI/L PCI/L PCI/L PC IlL PCI/L PCI/L PC! /L PCI/L PCI/L ANALYSIS UNITS PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PCI/L PCI/L PCl/L PC!/L PC!/L PC!/L PC!/L PC!/L PC I /L PC!/L PCl/L PC!/L PC!/L PC! /L PCI/L PPB PC!/L PC!/L PC!/L PC!/L PCI/L PCI/L PC!/L PCI/L PC!/L PC!/L PC!/L PC l/L PC!/L PC!/L PCI/L PCI/L PCI/L PC l/L PPB PPB PPB ANALYSIS UNITS PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L PCI/L PPB PPB PCI/L PC!/L PPB PPB PPB PPB PPB PPB PPB PPB PPB PC!/L UMHO PPB PCI/L PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB ANALYSIS UNITS ANALYSIS UNITS PPB PP8 PP8 PP8 PPB PPB PPB PPB PPB PPB PPB PP8 PP8 PPB PPB PP8 PP8 PPB PPB PP8 PP8 PPB PPB PP8 PP8 PP8 PPB PP8 PPB PP8 PP8 PP8 PP8 PPB PP8 PPB PP8 PP8 PP8 PP8 PPB PPB PP8 PP8 PP8 PPB PPB PPB PPB PPB PCI/L PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L PPB PCI/L PCI/L PCI/L PC! /L PCI/L PCI/L PC!/L PCI/L PC!/L PC!/L PCI/L PCI/L PCI/L PC!/L PC!/L PCI/L PC I /L PC I /L PCI/L PCI/L PC!/L PCI/L	'	• •
				8.18 8.19 B.20 8.21 8.22					

TABLE B

 B 
			.2. (contd)		
	WELL NAME	COLLECTION OATE	CONSTITUENT NAME	LESS THAN FLAG	ANALYSIS VALUE	ANALYSIS UNITS
	2-E34-I 2-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1	1!/I0/87 1!/10/87 12/03/B7 12/03/87 I2/03/87 12/03/87 12/03/87 12/03/87	RU-I06 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM	< < < <	4.0100E+01 1.1200E+03 2. 7200E+OO 7.6IOOE+OO -1. 7000E +00 1.4100E+OO -1. 7900E+Ol I.3400E+03	PC!/L PC!/L PCI/L PC!/L PC!/L PCI/L PCI/L PC!/L
	2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-J 2-E34-! 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-EJ4-1 2-E34-1 2-E34-1 2-EJ4-1 2-EJ4-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1	1/27/88 1/27/88 1/27/88 1/27/88 l/27/88 1/27/88 1/27/88 l/27 /88 1/27/88 1/27/88 1/27/88 1/27/88 l/27/88 1/27/88 1/27/88 1/27/88 1/27/88 l/27 /88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 l/27/88 l/27 /88 1/27/88 l/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 I/27/88 I/27/88 I/27 /88 l/27 /88 1/27/88	1,1,1-T 1.1.2-T 1,1-0IC 1,2-0IC 1-napha 11!2-tc 1122-tc 12-dben 123-trp 1234TE 1235TE 123TRI 13-dben 135TRI 14-dben 2-napha 24-dchp 24-dint 245-trp 246-trp 26-dchp 26-dint ACEFENE ACETILE ACETOPH ACROL!N ACRY!LE ALKAL!N ALPHA ALUMNUM AMI I SOX AMINOYL AM!TROL AMMONIU ANILINE ARAM!TE ARSENIC	< < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <	5.0000E+OO 5.0000E+OO 1.0000E+OI l.OOOOE+OI I.OOOOE+01 l.OOOOE+01 l.OOOOE+Ol l.OOOOE+OI l.OOOOE+01 l.OOOOE+OI l.OOOOE+01 l.OOOOE+01 t.OOOOE+01 l.OOOOE+01 l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+01 5.0000E+01 l.OOOOE+Ol l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 3.0000E+03 1. OOOOE+01 l.OOOOE+Ol 1.0000E+01 8.9100E+04 1. SSOOE+OO l.SOOOE+02 l.OOOOE+Ol l.OOOOE+Ol l.OOUOE+01 S.OOOOE+OI l.OOOOE+OI l.OOOOE+Ol	PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L PPB PP8 PPB PPB PPB PPB PPB

< S.OOOOE+OO PPB B. 23 
TABLE B

 B 
			.2. (contd)		
	WELL NAME	COLLECTION DATE	CONSTITUENT NAME	LESS THAN FLAG	ANALYSIS VALUE	ANALYSIS UNITS
	2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-1 2-E34-l 2-E34-1 2-E34-I 2-E34-l 2-E34-l 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I	1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/B8 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 l/27/88 1/27/88 1/27/88 1/27/88	AURAMIN BARIUM BENDICM BENDINE BENTHOL BENZAAN BENZBFL BENZCAC BENZCHL BENZENE BENZJFL BENZOPY BETA BIS2CHE BIS2CHM BIS2EPH BIS2ETH BISTHER BROMONE BROMORM BROPHEN BUTBENP BUTDINP CADMIUM CALCIUM CARBIDE CHALETH CHLANIL CHLBENZ CHLCRES CHLEPOX CHLFORM CHLNAPH CHLNAPZ CHLOR!D CHLPHEN CHLTHER CHMTHER CHROMUM CHRYSEN C0-60 CONOFLD COPPER CRESOLS CROTONA	< < < < < < < < < < < < < < < <. < < < < < < < < < < < < < < < < < < < < < < <	!.OOOOE+OI 2.8000E+OI !.OOOOE+OI !.OOOOE+01 I.OOOOE+OI I.OOOOE+OI !.OOOOE+OI !. OOOOE+01 !.OOOOE+01 S.OOOOE+OO !.OOOOE+01 !.OOOOE+OI 8.9100E+OO I.OOOOE+OI !. OOOOE+01 !.OOOOE+01 !.OOOOE+OI 1.0000E+01 I.OOOOE+01 !.OOOOE+OI !.OOOOE+01 !.OOOOE+01 1.0QOOE+01 2.0000E+OO 5.8000E+04 !.OOOOE+01 !.OOOOE+Ol 1.0000E+01 l.OOOOE+01 l.OOOOE+Ol l.OOOOE+Ol S.OOOOE+OO l.OOOOE+OI l.OOOOE+OI I. 6600E+04 l.OOOOE+OI !.OOOOE+OI !.OOOOE+OI l.OOOOE+OI l.OOOOE+OI -1.9000E+OO 4.64DOE+02 I.OOOOE+OI I.OOOOE+OI l.OOOOE+OI	PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/l PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PPB PPB PPB PPB PCI/l UMHO PPB PPB PPB
			8.24			

TABLE B

 B 
			.2. (contd} TABLE 8.2. (contd) TABLE 8.2. (contd) T8BLE 6.2. (contd) TABLE 8.2. (contd)			
	• •	WELL NAME 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 WELL NAME WELL NAME WELL NAME WELL NAME 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-l 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-l 2-E34-1 2-E34-l 2-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-I 2-E34-1 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-1 Z-E34-1 Z-E34-1 2-E34-1 2-E34-1 Z-E34-1 Z-E34-1 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-I 2-E34-1 2-E34-l 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-I 2-E34-1 2-E34-1 2-E34-1 2-E34-I 2-E34-1 2-E34-I 2-E34-I 2-E34-l 2-E34-l 2-E34-I 2-£34-l 2-E34-I 2-E34-l 2-E34-1 2-£34-I Z-E34-l 2•-E34-l 2-£34-l 2-£34-l 2-E34-l 2-E34-l 2-E34-I 2-£34-1 2-E34-1 2-E34-l 2-E34-I 2-E34-l 2-E34-1 2-E34-I 2-£34-1 2-E34-l 2-E34-l 2-E34-1 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-l 2-E34-1 2-E34-I 2-E34-1 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-1 2-E34-1 2-E34-1 2-E34-l 2-E34-1 2-E34-l 2-E34-l 2-E34-l 2-E34-1 2-E34-1 2-E34-l 2-E34-l 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2	COLLECTION DATE 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27188 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 l/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 COLLECTION DATE COLLECTION OATE COLLECTION OATE COLLECTION DATE 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 I/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 I/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 I/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 I/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 I/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1127/88 1/27/88 1/27/88 1/27/88 1/27/88 1127/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1127/88 1/27/88 1/27/88 1/27/88 1/27/88 1127/88 1/27/88 1/27/88 1/27/88 1127/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1127/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1127/88 1127/88 1127/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 I/27/88 I/27/88 1/27/88 1/27/88 I/27/88 1/27/88 1/27/88 1/27/88 1/27/88 1/27/88 l/27 /88 1/27/88 l/27 /88 1/27/88 1/27/88 1/27/88 1/27/88 1127/88 1127/88 I/27/88 1/27/88 l/27 /88 1127/88 1/27/88 1127/88 l/27 /88 1/27/88 1/27/88 6/03/88 6/03/88 6/03/88 6/03/88 6/03/88 6/03/88 7/26/88 7/26/88 7/26/88 7/26/88 7/26/88 7/26/88 10/25/88 !0/25/88 10/25/88 !0/25/88 10/25/88 10/25/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 97l3788---T,T,-1-T CONSTITUENT NAME CS-137 CYANIDE CYCHOIN DIBAEPY OIBAHAC DIBAHAN OIBAHPY OIBAIPY DIBAJAC OIBCGCA OIBPHTH DIBRCHL OIBRETH DIBRMET DIBUTEN DICDIFM DICETHY D1CHBEN DICPANE DICPENE OIEPHTH DIETHY OIHYSAF DIMBENZ DIMEAMB D1METHB DIMEYLB DIMPHAM DIMPHEN DIMPHTH DINBENZ .OJNCRES DINPHEN DIOPHTH DIOXANE DIPHAMI DIPHHYD OIPRN1T ETHMETH ETHMETS ETHMINE ETHOXID FALUMIN FANTIMO FARSENI CONSTITUENT NAME CONSTITUENT NAME CONSTITUENT NAME CONSTITUENT NAME FBARIUM F8ERYLL FCAOMIU FCALCIU FCHROMI FCOPPER FIRON FLEAO FLUORAN FLUORIO FMAGNES FMANGAH FMERCUR FNICKEL FORMALN FPOTASS FSELENI FS!LVER FSODIUM FSTRONT FVANADI FZINC HEXACHL HEXAENE HEXC8EN HEXCBUT HEXCCYC HEXCETH HEXONE HYDRSUL INOENOP IODOMET IRON ISOSOLE KEROSEN LEAOGF M-XYLE MAGNES MALHYOR MALOILE MANGESE MELPHAL MERCURY METACRY MET ACTO METAZ!R MET8!SC MET CHAN METHACR METHAPY METHBRO METHCHL METH10U METHNYL MET HONE METHTHI METHYCH METMSUL MET PROP NAPHQUI NAPHTHA NICKEL NICOTIN NITBENZ NIT PH EN NIT RANI NITRATE NITRPYR NITRTOL NN01EHY NNIBUTY NNIO!EA NNIDIEY NNIDIME NNIMETH NN!MORP NNINICO NN!PIPE NNIURET NNIV!NY OPXYLE OTOLHYD PBENZQU PEN TACH PENTCHB PENTCHN PENTCHP PERC ENE PH-LAB PHENINE PHENOL PHENTIN PHFIELD PHOSPHA PHTHEST PI COLIN POTASUM PRONIOE PYRIOIN RADIUM RESERPI RESORCI RU-106 SAFROL SELENUM SILVER SOO!UM STRYCHN SULFATE SYMTRIN TC TETRANE TETRCHB TETRCHP TH!ONOX THIURAM TOC TOLUOl A TOLUENE TOXLDL TRANOCE TRCMEOL TRCMFLM TRCPANE TRI8UPH TRICENE TRICHL8 TRIPHOS TRISPHO TRITIUM VANAOUM VINYl DE WARFRIN ZINC ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALPHA BETA C0-60 CS-137 RU-106 TRITIUM ALKALIN AMMONIU CHLORID CONOFLO CYANIDE FLUORID NITRATE PH-LAB PHFIELO PHOSPHA SULFATE TOC 9/23/88 1,1,2-T 9/23/88 1,1-0IC 9/23/88 1,2-0IC 9/23/88 1-napha 9/23/88 1112-tc 9/23/88 1122-tc 9/23/88 12-dben 9/23/88 123-trp 9/23/88 1234TE 9/23/88 1235TE 9/23/88 123TRI 9/23/88 13-dben 9/23/88 135TRI 9/23/88 14-dben 9/23/88 2,4,5-T	LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG LESS THAN FLAG LESS THAN FLAG LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <: < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <	ANALYSIS VALUE -3.3000E+OO l.OOOOE+OI l.OOOOE+OI l.OOOOE+OI l.OOOOE+OI l.OOOOE+OI l.OOOOE+OI !.OOOOE+OI 1.0000E+OI l.OOOOE+OI l.OOOOE+OI !. OOOOE+01 l.OOOOE+01 l.OOOOE+OI l.OOOOE+OI !.OOOOE+OI l.OOOOE+01 2.0000E+OI l.OOOOE+01 I.OOOOE+OI l.OOOOE+OI l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+OI l.ODOOE+01 l.OOOOE+OI l.OOOOE+01 I.OOOOE+OI !.OOOOE+OI l.OOOOE+OI l.OOOOE+OI 5.0000E+01 l.OOOOE+OI 5.0000E+02 I.OOOOE+OI l.OOOOE+01 l.OOOOE+01 !.OOOOE+OI l.OOOOE+OI l.OOOOE+01 3.0000E+03 1. 5000E+02 l.OOOOE+02 5.0000E+OO ANALYSIS VALUE ' ANALYSIS VALUE ANALYSIS VALUE ANALYSIS VALUE ' 2.7000E+Ol 5.0000E+OO 2.0000E+OO 6 .1900E+04 1.0000E+OI l.OOOOE+Ol 5.0000E+01 5.0000E+OO l.OOOOE+Ol 7.2400E+02 I. 6200E+04 2.2000E+Ol !.OOOOE-01 !.OOOOE+OI 5.0000E+02 8 .1300E+03 7.0000E+OO l.OOOOE+Ol 2.7100E+04 2.8300E+02 7.0000E+OO S.OOOOE+OO l.OOOOE+OI l.OOOOE+Ol l.OOOOE+01 l.OOOOE+Ol l.OOOOE+01 l.OOOOE+Ol !.OOOOE+OI l.OOOOE+01 !.OOOOE+Ol l.OOOOE+OI 1.0600E+03 l.OOOOE+Ol l.OOOOE+04 5.0000E+OO S.OOOOE+OO I. 6300E+04 5.0000E+02 l.OOOOE+Ol 3.2000E+OI l.OOOOE+Ol !.OOOOE-01 l.OOOOE+Ol l.OOOOE+01 I.OOOOE+OI I.OOOOE+OI I.OOOOE+O! l.OOOOE+01 I .OOOOE+OI I. OOOOE+OI I.OOOOE+OI I.OOOOE+OI l.OOOOE+Ol I.OOOOE+O! I.OOOOE+OI I.OOOOE+01 I.OOOOE+01 I.OOOOE+01 1.0000E+OI I.OOOOE+01 I.OOOOE+01 1.0000E+02 !.OOOOE+OI 5.0000E+01 S.OOOOE+OI 1.3400E+04 I.OOOOE+OI I.OOOOE+01 1.0000E+01 I.OOOOE+01 1.0000E+O! I.OOOOE+01 1.0000E+01 I. OOOOE+O! 1.0000E+01 I.OOOOE+01 1.0000E+01 I.OOOOE+01 1.0000E+01 S.OOOOE+OO I.OOOOE+01 I.OOOOE+01 1.0000E+01 I. OOOOE+01 I.OOOOE+01 5.0000E+01 S.OOOOE+OO 7.7000E+OO I.OOOOE+01 I.OOOOE+Ol !.OOOOE+OI 7.6000E+OO l.OOOOE+03 l.OOOOE+OI !.OOOOE+OI 8.8000E+03 I.OOOOE+OI 5.0000E+02 I.6400E-OI l.OOOOE+Ol I. OOOOE+Ol 3 .. 7000E+Ol !.OOOOE+Ol S.OOOOE+OO l.OOOOE+OI 3 .0300E+04 S.OOOOE+OI I. 5300E+05 l.OOOOE+Ol 2.3000£+04 S.OOOOE+OO !.OOOOE+01 l.OOOOE+Ol l.OOOOE+Ol !.OOOOE+01 4.2lOOE+02 !.OOOOE+OI S.OOOOE+OO 2.6500£+01 1.0000E+Ol !.OOOOE+OI l.OOOOE+Ol l.OOOOE+Ol I.OOOOE+OI 5.0000E+OO l.OOOOE+OI l.OOOOE+Ol I.OOOOE+Ol 1.4600£+03 9.0000E+OO l.OOOOE+Ol l.OOOOE+Ol 5.0000£+00 !.8700E+OO 9.0500E+OO -!.5200E+OO 2.4700E+OO -!.8000E+O! !.5!00E+03 !. 5500E+OO 5.8900E+OO -4 .1300E+OO -2.9800E+OO 3.1200E+OO !. 6900E+03 !. 7600E+OO 9.8300E+OO -!.6300E+OO -8.8100E-Ol !.3600E+01 1.9000E+03 9. 7000E+04 5.0000E+Ol !. 3200E+04 4. 4000E+02 l.OOOOE+Ol 5.0000E+02 !. 2000E+04 7. 7000E+OO 7.9000E+OO l.OOOOE+03 !.1100E+05 5.0000E+02 ---5-. 0000 E +00 5.0000E+OO l.OOOOE+Ol !.OOOOE+Ol !.OOOOE+Ol 1.0000E+01 l.OOOOE+Ol l.OOOOE+Ol !.OOOOE+Ol l.OOOOE+Ol !.OOOOE+Ol !.OOOOE+O! l.OOOOE+O! !.OOOOE+O! !.OOOOE+Ol 2.0000E+OO	ANALYSIS UNITS PCI/L PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB ANALYSIS UNITS ANALYSIS UNITS ANALYSIS ANALYSIS UNITS UNITS PPB PPB PPB PPB PP8 PPB PPB •PPB PP8 PPB PPB PPB PPB PPB PP8 PP8 PPB PPB PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PPB PPB PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PP8 PP8 PP8 PP8 PPB PCI/L PP8 PP8 PCI/L PPB PPB PP8 PP8 PPB PP8 PP8 PPB PPB PPB PPB PPB PP8 PP8 PPB PPB PPB PP8 PP8 PPB PP8 PP8 PP8 PPB PPB PP8 PCI/L PP8 PP8 PPB PP8 PCI/L PCI/L PC!/L POI/L PCI/L PC!/L PCI/L PCI/L PC!/L PCI/L PC!/L PCI/L PC!/L PCI/L PCI/L PCI/L PC!/L PC!/L PPB PPB UMHO PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB	• •
			B.25 8.26 8.27 6.28 8.29				

TABLE B

 B 
			.2. (contd)		
	WELL NAME	COLLECTION DATE	CONSTITUENT NAME	LESS THAN FLAG	ANALYSIS VALUE	ANALYSIS UNITS
	2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 Z-E34-2 2-E34-2 2-E34-2	9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88	2,4,5TP 2,4-D 2-napha 24-dchp 24-dint 245-trp 246-trp 26-dchp 26-dint ACEFENE ACETILE ACETO PH ACETREA ACROLIN ACRYIDE ACRYILE ALDRIN ALLYLAL ALPHA ALUMNUM AMI I SOX AMINOYL AMITROL AI' MONIU ANILINE ANTIONY ARI016 AR1221 ARI232 AR1242 ARI248 AR1254 ARI260 ARAM!TE ARSENIC AURAMIN BARIUM 8ENDICM 8ENDINE BENTHOL BENZAAN BENZ8FL 8ENZCAC 8EHZCHL BENZENE	< < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <:	2.DOOOE+OO 2.0000E+OO l.OOOOE+OI l.OOOOE+OI l.OOOOE+OI 5.0000E+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol 3.0000E+03 l.OOOOE+Ol 2.0000E+02 l.OOOOE+Ol l.OOOOE+04 l.OOOOE+Ol l.OOOOE-01 2.5000E+03 !. 5000E+OO 4. 7000E+02 l.OOOOE+Ol l.OOOOE+OI l.OOOOE+Ol 5.0000E+OI l.OOOOE+Ol l.OOOOE+02 l.OOOOE+OO l.OOOOE+OO l.OOOOE+OO l.OOOOE+OO l.OOOOE+OO l.OOOOE+OO l.OOOOE+OO l.OOOOE+Ol 6.0000E+OO l.OOOOE+Ol 5.8000E+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+OI l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol 5.0000E+OO	PPB PPB PPB PPB PP8 PP8 PP8 PPB PP8 PPB PP8 PPB PP8 PPB PPB PPB PPB PPB PC!/L PPB PP8 PP8 PPB PP8 PPB PP8 PP8 PPB PPB PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PPB PP8 PPB PP8 PP8 PP8 PP8
			B.30			

TABLE B .

 B 2. (contd) 


				TABLE 8.2. (contd) TABLE 8.2. (contd) TABLE 8.2. (contd)			
	• ' •	WELL NAME 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 WELL NAME WELL NAME WELL NAME 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 Z-E34-2 Z-E34-Z 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 Z-E34-2 2-E34-Z Z-E34-Z 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-Z 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-£34-2 2-£34-2 2-E34-2 2-£34-2 2-£34-2 2-E34-2 2-£34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E31-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2	COLLECTION DATE 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 COLLECTION DATE COLLECTION DATE COLLECTION DATE 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88	CONST !TUENT NAME BENZJFL BENZOPY BERYLUM BETA BIS2CHE BIS2CHM BIS2EPH BIS2ETH BISTHER BROMONE BROMORM BROPHEN BUTBENP BUTOINP CADMIUM CALCIUM CARBIDE CARBPHT CHALETH CHLACET CHLANIL CHLBENZ CHLCRES CHLEPOX CHLFORM CHLLATE CHLNAPH CHLNAPZ CHLOANE CHLOREA CHLORID CHLPHEN CHLPROP CHLTHER CHMTHER CHROMUM CHRYSEN C!TRUSR C0-60 COLIFRM CONDFLD CONDLAB CONDLAB CONDLAB CONDLAB CONSTITUENT NAME CONSTITUENT NAME CONST lTUENT NAME COPPER CRESOLS CROTON A CS-137 CYANIDE CYCHDIN DOD DOE DDT 018AEPY DI8AHAC DI8AHAN D18AHPY DI8AIPY DI8AJAC DI8CGCA DI8PHTH DI8RCHL DI8RETH DI8RMET DI8UTEN D1CDIFM DICETHY DICH8EN DICPANE D1CPENE DIELRIN DIEPHTH DIETHY DIETROL DIHYSAF DIM8ENZ DIMEAM8 DIMETH8 DIMETHO DIMEYL8 DIMPHAM DIMPHEN DIMPHTH DIN8ENZ D1NCRES DINPHEN DIOPHTH DIOXANE DIOXIN OIPHAMJ DIPHHYO O!PRNIT D!SULFO END01 EN002 ENOR!N ETHCARB ETHCYAN ETHMETH ETHMETS ETHM!NE ETHOX!O ETHYGL Y ETHYREA FALUM!N FANT!MO FARSENI FBARIUM FBERYLL FCAOMIU FCALCIU FCHROM! FCOPPER FIRON FLEAD FLUORAN FLUORIO FMAGNES FMANGAN FMERCUR FN!CKEL FORMALN FPOTASS FSELEN1 FSILVER FSOOIUM FSTRONT FTHALL! FVANADI FZINC HEPTIDE HEPTLOR HEXACHL HEXAENE HEXCBEN HEXCBUT HEXCCYC HEXCETH HEXONE HYORAZI HYORSUL INDENOP IOOOMET IRON ISOBUTY ISOSOLE KEROSEN LEAOGF M-XYLE MAGNES MALHYOR MALOILE MANGESE MELPHAL MERCURY METACRY MET ACTO METAZIR METBISC MET CHAN METHACR METHAPY METHBRO METHCHL METHIOU METHLOR METHNYL METHONE METHPAR METHTHI METHYCH METMSUL MET PROP NAPHQUI NAPHREA NAPHTHA NICKEL NICOTIN NITBENZ	LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG LESS THAN FLAG LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <	ANALYSIS VALUE • ' !.OOOOE+Ol l.OOOOE+Ol S.OOOOE+OO 1.0600E+Ol !.OOOOE+OI l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol !.OOOOE+Ol !.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol 2.0000E+OO 6.2300E+04 l.OOOOE+Ol 2.0000E+OO l.OOOOE+Ol 1.6000E+04 l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol S.OOOOE+OO 3.0000E+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+OO 2.0000E+02 1.1400E+04 l.OOOOE+Ol 4.0000E+03 l.OOOOE+Ol l.OOOOE+Ol 4.9000E+OI l.OOOOE+Ol l.OOOOE+03 -3.9700E+OO 2.2000E+OO 4.3800E+02 5.5300E+02 5.5500E+02 5.5600E+02 5.5700E+02 ANALYSIS VALUE ,' ANALYSIS VALUE ANALYSIS VALUE ' l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 -4.7100E+OO l.OOOOE+01 1.0000E+01 1.0000E-01 1.0000E-01 l.OOOOE-01 1.0000E+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+OI l.OOOOE+01 1.0000E+01 t.OOOOE+01 l.OOOOE+01 2.0000E+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE-01 l.OOOOE+01 l.OOOOE+01 2 .OOOOE+02 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 2.0000E+OO l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 t.OOOOE+01 S.OOOOE+01 1.0000E+01 S.OOOOE+02 l.OOOOE-01 I.OOOOE+OI l.OOOOE+01 l.OOOOE+01 2.0000£+00 l.OOOOE-01 1.0000£-01 l.OOOOE-01 5.0000£+03 2.0000£+03 l.OOOOE+01 1.0000E+01 1.0000E+01 3.0000£+03 1.0000E+04 2.0000E+02 1.5000E+02 1.0000E+02 6.0000E+OO 4. IOOOE+OI 5.0000E+OO 2.0000E+OO 5.6500£+04 I .OOOOE+01 l.OOOOE+OI 3.0000E+OI 5.0000E+OO l.OOOOE+OI 5.0000£+02 1. 6000E+04 5.0000E+OO l.OOOOE-01 l.OOOOE+01 5.0000E+02 8.1700E+03 8.0000E+OO l.OOOOE+01 3.1300£+04 2.6700£+02 S.OOOOE+OO 2.2000£+01 S.OOOOE+OO l.OOOOE-01 l.OOOOE-01 l.OOOOE+01 l.OOOOE+01 I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI 3.0000E+03 I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI !.2SOOE+03 I.OOOOE+03 I.OOOOE+OI I.OOOOE+04 S.OOOOE+OO S.OOOOE+OO I. 7100E+04 5.0000E+02 I.OOOOE+OI 3.0000E+OI I.OOOOE+OI I.OOOOE-01 I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI !.OOOOE+OI I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI I.OOOOE+OI 3.0000E+OO I.OOOOE+Ol I.OOOOE+Ol 2.0000E+OO I.OOOOE+Ol I.OOOOE+Ol I.OOOOE+Ol I.OOOOE+Ol I.OOOOE+Ol 2.0000E+02 I.OOOOE+Ol 2.2000E+Ol I.OOOOE+02	ANALYSIS UNITS PPB PPB PPB PCI/L PPB PPB PP8 PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L MPN UMHO UMHO UMHO UMHO UMHO ANALYSIS UNITS ANALYSIS UNITS ANALYSIS UNITS PP8 PP8 PP8 PCI/L PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PPB PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PP8 PPB PPB PPB PPB PP8 PPB PP8 PPB PPB PP8 PPB PP8 PPB PP8 PPB PPB PP8 PPB PP8 PPB PPB PPB PP8 PP8 PP8 PPB PPB PP8 PPB PPB PPB PP8 PPB PP8 PPB PPB PPB PPB PPB PPB PPB PP8 PP8 PPB PPB PPB PPB PPB PP8 PPB PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB	• " •
				8.31 8.32 8.33				

< l.OOOOE+OI PPB 8.34 
TABLE B .

 B 2. (contd) 


				TABLE 8.2. (contd) TABLE 8.2. (contd) TABLE 8.2. (contd) TABLE 8.2. (contd)			
	' ' ' ' • •	WELL NAME 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-[34-2 2-E34-2 WELL NAME 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-2 WELL NAME 2-E34-2 2-E34-2 2-E34-2 2-E34-2 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-£34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-E34-3 2-£34-3 2-E34-3 2-E34-3 2-E34-3 2-[34-3 2-E34-3 2-E34-3 2-E34-3 2-[34-3 2-[34-3 2-E34-3 2-[34-3 2-[34-3 2-[34-3 2-E34-3 2-E34-3 2-E34-3 2-[34-3 2-[34-3 2-E34-3 WELL NAME HELL NAME 2-E33-!B 2-E33-!8 2-E33-18 2-E33-!8 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 ' 2-E33-18 2-E33-18 2-E33-18 2-E33-!8 2-E33-!8 2-E33-18 2-[33-18 2-E33-18 2-E33-18 2-E33-!8 2-E33-!8 2-[33-18 2-E33-18 2-E33-18 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-18 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-18 2-E33-I8 2-E33-18 • . 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-I8 2-E33-18 2-E33-I8 2-E33-18 2-E33-I8 2-E33-I8 2-E33-18 2-E33-18 2-E33-I8 2-E33-I8 2-E33-18 2-E33-18 2-E33-I8 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-I8 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-EJ3-18 2-E33-18 2-E33-18 2-EJ3-18 . 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E3J-18 2-El3-18 2-EJ3-18 2-EJ3-18 2-EJJ-IB 2-EJJ-18	COLLECTION DATE 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 COLLECTION DATE 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 COLLECTION DATE 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/ZJ/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 9/23/88 COLLECTION DATE .COLLECTION OATE 1/03/85 1/03/85 1/03/85 1/03/85 1/03/85 2/13/85 2/13/85 2/13/85 2/13/85 2/13/85 4/15/85 4/15/85 4/15/85 4/15/85 4/15/85 9/05/85 9/05/85 9/05/85 9/05/85 9/05/85 12/19/85 12/19/85 !2/19/85 I2/I9/85 I2/l9/85 2/27/86 2/27/86 2/27/86 2/27/86 2/27/86 5/05/86 5/05/86 5/05/86 5/05/86 5/05/86 8/ ll/86 8/ll/86 8/ll/86 8/11/86 8/!1/86 10/29/86 10/29/86 10/29/86 10/29/86 10/29/86 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 3/24/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87	CONSTITUENT NAME NITPHEN NIT RANI NITRATE N!TRPYR N!TRTOL NND!EHY NNIBUTY NNIOIEA NNIOIEY NNIOIME NNIMETH NNIMORP NNINICO NNIPIPE NNIURET NNIVINY OPXYLE OTOLHYO PARALOE PARATHI PBENZQU PEN TACH PENTCHB PENTCHN PENTCHP PERCENE PERCHLO PH-LAB PH-LAB PHENINE PHENOL PHENREA PH ENTIN PHFIELO PHQSPHA PHTHEST PI COLIN POTASUM PRONIDE PRO PYLA PROPYNO PYR!OIN RADIUM RESERPI RESORCI CONST ITU[NT NAME RU-I06 SAFROL SELENUM SILVER SODIUM SR 90 STRONUM STRYCHN SULFATE SULFIDE SYMTRIN TC TC-99 TETEPYR TETRANE TETRCHB TETRCHP THALIUM THIONOX THIOURA THIURAM TOC TOC TOC TOLUDIA TOLUENE TOXAENE TOXLDL TOXLDL TOXLDL TRANDCE TRCMEOL TRCMFLM TRCPANE TRIBUPH TRICENE TRICHLB TRIPHOS TRISPHO TRITIUM U-CHEM VANADUM VI NY IDE WARFRIN ZINC CONSTITUENT NAME a-BHC b-BHC d-BHC g-BHC 1,1,1-T 1,1,2-T 1,1-01C 1,2-0IC 1-napha 1112-tc 1122-tc 12-dben 123-trp 1234TE 1235TE 123TR1 13-dben 135TRI 14-dben 2,4,5-T 2,4,5TP 2,4-0 2-napha 24-dchp 24-dint 245-trp 246-trp 26-dchp 26-dint ACEFENE ACET1LE ACETOPH ACETREA ACROLIN ACRYIDE ACRYILE ALDRIN ALLYLAL ALPHA ALUMNUM AMI I SOX AMINOYL AMITROL AMMONIU ANILINE CONSTITUENT NAME CONSTITUENT NAME BETA C0-60 CS-137 RU-106 SR 90 BETA C0-60 CS-137 RU-106 SR 90 BETA C0-60 CS-137 . RU-106 SR 90 BETA C0-60 CS-137 RU-106 SR 90 BETA C0-60 CS-137 RU-ID6 SR 90 BETA C0-60 CS-I37 RU-I06 SR 90 BETA C0-60 CS-!37 RU-I06 SR 90 BETA C0-60 CS-!37 RU-106 SR 90 BETA C0-60 CS-137 RU-106 SR 90 1,1,1-T 1,1,2-T ALKAL!N ALPHA AMMONIU BETA BETA CHLFORM CHLORIO C0-60 CONDFLD CS-137 CYAN!OE FALUMIN FANTIMO FARSENI FBARIUM FBERYLL FCADMIU FCALCIU FCHROMI FCOPPER FIRON FLEAO FLUORIO FMAGNES FMANGAN FMERCUR FNICKEL FOSMIUM FPOTASS FSELENI FSILVER FSOOIUM FSTRONT FVANAOI FZINC M-XYLE MET HONE METHYCH NITRATE OPXYLE PERCENE PH-LAB PHF!ELO PHOSPHA PU-238 PU39-40 RADIUM RU-106 SR 90 SULFATE TETRANE TOC TOXLOL TRICENE TRITIUM u 1,1,1-T 1,1,2-T ALKAL!N ALPHA AMMONIU BETA BETA CHLFORM CHLORIO C0-60	LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < LESS THAN FLAG LESS THAN FLAG < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <• < < <	ANALYSIS VALUE S.OOOOE+OI S.OOOOE+OI !.1800E+04 l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol !.OOOOE+Ol l.OOOOE+Ol !.OOOOE+OI l.OOOOE+OI l.OOOOE+Ol l.OOOOE+OI !.OOOOE+OI l.OOOOE+Ol !.OOOOE+OI S.OOOOE+OO l.OOOOE+OI 2.0000E+03 2.0000E+OO l.OOOOE+Ol !.OOOOE+OI !.OOOOE+OI !. OOOOE+Ol S.OOOOE+OI S.OOOOE+OO !.OOOOE+03 7.8000E+OO 7.9000E+OO !.OOOOE+OI l.OOOOE+Ol 5.0000E+02 I.OOOOE+OI 8.0000E+OO I.OOOOE+03 !.OOOOE+OI !.OOOOE+OI 8.8600E+03 !.OOOOE+Ol !.OOOOE+04 8.0000E+03 S.OOOOE+02 1.3900E-Ol !.OOOOE+Ol l.OOOOE+Ol ANALYSIS VALUE ' ' -2.9700E+DO 1.0000E+OI 9.0000E+OO I.OOOOE+OI 3.3300£+04 I. 7400E-OI 2.8300E+02 5.000DE+Ol !.5000E+05 I.OOOOE+03 I.OOOOE+DI 2.0900E+04 -3.6300E+OO 2.0000E+OO 5.0000E+OO I.OOOOE+OI I.OOOOE+OI 5.DOOOE+OO 1.0000E+01 2.0000E+02 I.OOOOE+OI 3.0000E+02 4.0000E+02 5.0000E+02 1.0000E+01 5.0000E+OO 1.0000E+OO 4.0000E+OO 6.0000E+OO 7.0000E+OO I.OOOOE+01 1.0000E+01 I .OOOOE+01 1.0000E+01 I.OOOOE+OI 5.0000E+OO I.OOOOE+OI I.OOOOE+01 1.0000E+OI 2. IOOOE+03 3. 4500E+OO 2.7000E+01 I.OOOOE+01 I.OOOOE+01 I. 9000E+01 ANALYSIS VALUE 1.DOOOE-01 !.OOOOE-01 !.OOOOE-01 !.OOOOE-01 5.0000E+OO 5.0000E+OO 1.0000E+01 !.OOOOE+01 !.OOOOE+01 !.OOOOE+01 !.OOOOE+01 !.OOOOE+01 1.0000E+01 1.0000E+01 !.OOOOE+01 !.OOOOE+01 !.OOOOE+01 !.OOOOE+Ol !.OOOOE+01 2.0000£+00 2.0000E+OO 2.0000E+OO !.OOOOE+01 !.OOOOE+01 l.OOOOE+01 5.0000E+01 !.OOOOE+Ol 1.0000E+01 1.0000E+01 l.OOOOE+01 3.0000E+03 l.OOOOE+01 2.0000[+02 1.0000£+01 1.0000E+04 I. 0000£+01 !.OOOOE-OI 2.5000[+03 I.2700E+OO 1.5000[+02 l.OOOOE+01 l.OOOOE+Ol l.OOOOE+01 5.0000E+OI l.OOOOE+01 ANALYSIS VALUE ANALYSIS VALUE !.!800E+Ol 4.5100E+OO 3. 7900E+OO -8. 7100E+OO -4.8200E-Ol 1.1200E+01 -!. 7000E+OO -2.0700E+OO 2.9700E+Ol 6.3800E-01 !.4100E+01 -3.0200E+OO 7.6500E+OO 6.0700E+01 1.4100E-01 !.1000E+01 -4.5500E+OO 4. 7900E+OO 8.0100E+OO 3.5400E-01 !.0800E+01 -2.9500E+OO !.0700E+OO -2.3600E+DI 2.5400E-OI I.I400E+OI -I.5IOOE+OO -8.6200E+OO -!.5800E+OI 4.2700E-OI I.4900E+OI 6. 7700E+OO 6.I900E+OO -3. 7700E+OI -2.l!OOE-OI !.3000E+OI 6.8200[+00 -6.8900E-01 -!.5IOOE+OI 2.6600E+OO 8. 7700E+OO 5.6300E-01 4.8200E+OO !.4400E+01 3.7!00E-01 !.OOOOE+01 l.OOOOE+01 9.6000E+04 2.6200E+OO 5.0000E+01 8.6300E+OO !.4900E+OI 1.0000E+OI 2.6700E+03 -!.8300E+OO 2.3300E+02 3.0200E+OO !.OOOOE+01 I.5000E+02 l.OOOOE+D2 8.0000E+OO !. 9000E+Ol 5.0000E+OO 2.0DOOE+OO 2.5200E+04 l.OOOOE+01 l.OOOOE+01 5.0000E+OI 5.0000E+OO 5.0000E+02 8.6300E+03 5.0000E+OO l.OOOOE-01 l.OOOOE+OI 3.0000E+02 4.6200E+03 5.0000E+OO I.OOOOE+Ol 1.3800E+04 3.0000E+02 2./000E+OI 5.0000[+00 l.OOOOE+OI l.OOOOE+OI l.OOOOE+01 !. 7200[+04 l.OOOOE+01 l.OOOOE+OI 7.8800E+OO 8.1000E+OO !.OOOOE+03 O.OOOOE+OO -5.7100E-03 4.0200E-02 4.7700E+Ol 6.6500E-Ol 2. 6800E+04 l.OOOOE+01 5.2900[+02 2.0000E+OI l.OOOOE+OI 4.6700E+02 1.1800E+OO l.OOOOE+OI 1.0000E+01 9. 4000E+04 !.1900E+OO 5.9000E+01 8.8500E+OO !.1500E+Ol l.OOOOE+OI 2.2300E+OJ	ANALYSIS UNITS PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L PPB PPB ANALYSIS UNITS PCI/L PPB PPB PPB PPB PCI/L PPB PPB PPB PPB PPB PPB PCI/L PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L UG/L PPB PPB PPB PPB ANALYSIS UNITS PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PPB PPB PCI/L PPB PPB PPB PPB PPB PPB ANALYSIS ANALYSIS UNITS UNITS PC!/L PC!/L PC!/L PC!/L PCI/L PCI/L PC! /L PCI/L PCI/L PCI/L PC!/L PCI/L PCI/L PCI/L PCI/L PC!IL PCI/L PCI/L PCI/L PC!/L PC!/L PC!/L PC!IL PCI/L PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PCl/L PCI/L PC!/L PCI/L PCI/L PCI/L PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PC!/L PPB PPB PCI/L PPB PCI/L PCI/L PPB PPB PCI/L UMHO PC!/L PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L PC!/L PC!/L PCI/L PC!/L PPB PPB PPB PPB PPB PCI/L PCl/L PPB PPB PCI/L PPB PCI/L PCI/L PPB PPB	' • • ' ' • ' • •
				8.35 8.36 8.37 8.38 6.39				

<2.8100E+OOPCI/L H.40 
TABLE 8

 8 
				.2. (contd)		
		WELL NAME	COLLECTION DATE	CONSTITUENT NAME	LESS THAN FLAG	ANALYSIS VALUE	ANALYSIS UNITS
	•	2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E13-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-[33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33,!8 2-E33-18 2-E33-18 2-E33-IB 2-E33-!8 2-E33-!8 2-E33-!8 2-E33-18 2-E33-18 Z-E33-18 Z-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18	5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/1~/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 5/19/87 8/04/87 8/04/87	CONDFLD CS-137 CYANIDE FALUMIN FANTIMO FARSENI FBARIUM FBERYLL FCADM1U FCALC1U FCHROMI FCOPPER FIRON FLEAD FLUORID FMAGNES FMANGAN FMERCUR FNICKEL FOSMIUM FPOTASS FSELENI FSILVER FSODIUM FSTRONT FVANAOI FZINC M-XYLE METHONE METHYCH NITRATE OPXYLE PERCENE PH-LAB PH FIELD PHOSPHA RADIUM RU-106 SULFATE TETRANE TOC TOXLDL TRICENE 1.1,1-T 1,1,2-T	< < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <	2.2100E+D2 -8.5500E-01 1.0000E+01 l. 5000E+02 l.OOOOE+02 8.0000E+OO 2.4000E+01 5.0000E+OO 2.0000E+OO 2.7700E+04 l.OOOOE+OI l.OOOOE+Ol 5.0000E+Ol 5. DOOOE+DO• 5.0000E+02 9.4800E+03 5.0000E+OO l.OOOOE-01 l.OOOOE+Ol 3.0000E+02 4.8500E+03 5.0000E+OO l.OOOOE+Ol l. 4700E+04 3.0000E+02 2.6000E+Ol 5.0000E+OO l.OOOOE+Ol l.OOOOE+Ol l.OOOOE+Ol ]. 6700E+04 l.OOOOE+Ol l.OOOOE+Ol 7.8400E+OO 7.8000E+OO l.OOOOE+03 9.0500E-03 -5.7900E+O! 2. 7600E+04 !.OOOOE+01 4 .1200E+02 2 .OOOOE+01 l.OOOOE+01 I .OOOOE+Ol 1.0000E+Ol	UMHO PCI/L PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PP8 PP8 PP8 PP8 PP8 PPB PPB PPB PP8 PP8 PP8 PPB PPB PPB PPB PPB PPB PPB PCI/L PCI/L PPB PPB PP8 PP8 PP8 PP8 PPB
				8.41			

< 2.0000E+OO PPB B.42 
TABLE B .

 B Z.(contd) 


				TABLE 8.2. (contd) TABLE 8.2. (contd)		
		WELL NAME WELL NAME WELL NAME	COLLECTION DATE COLLECTION DATE COLLECTION DATE	CONSTI fUENT NAME CONSTITUENT NAME CONSTITUENT NAME	LESS THAN FLAG LESS THAN FLAG LESS THAN FLAG	ANALYSIS VALUE ANALYSIS VALUE ANALYSIS VALUE	ANALYSIS UNITS ANALYSIS UNITS ANALYSIS UNITS
	•	2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E3J-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-EJJ-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-£33-18 2-E33-18 2-£33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2'E33-t8 2-E33-18 2-E33-18 2-E33-I8 2-E33-I8 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-IB 2-E33-IB 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-16 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-IB 2-E33-18 2-E33-18 Z-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18 2-E33-18	8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 8/04/87 10/26/87 10/26/87 10/26/87 10/26/87 3/01/88 3/01/88 3/01/88 3/01/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 11/09/88 3/01/88 3/01/88 3/DI/88 3/01/88 3/01/88 9/02/88 9/02/88 9/02/66 9/02/88 9/02/88 9/02/88 9/02/88 9/02/8B 9/02/88 9/02/88 Il/09/88 11/09/88 11/09/8B 11/09/88 11/09/88 11/09/88 I 1/09/88 11/09/88 11/09/88 11/09/88	FCALCIU FCHROMI FCOPPER FIRON FLEAO FLUORIO FMAGNES FI4ANGAN FMERCUR FN!CKEL FORMALN FOSM1UM FPOTASS FSELENI FSILVER FSOOIUM FSTRONT FVANAOI FZINC HYORSUL IOOOMET LFLUORO M-XYLE METACRY METHACR METHBRO METHCHL MET HONE METHTH1 METHYCH NITRATE NNOIEHY OPXYLE PENTACH PERCENE PH-LAB PHFIELO PHOSPHA PU-238 PU39-40 PYRIOIN RU-106 SR 90 SULFATE TC TETRANE TOC TOLUENE TOXLDL TRANDCE TRCMEOL TRCMFLM TRCPANE TRICENE TRITIUM u VI NY !DE BETA C0-60 CS-137 RU-106 BETA C0-60 CS-137 HNITRAT FCALC1U FCHROM1 FCOPPER F1RON FLUORID FMAGNES FMANGAN FNICKEL FPOTASS FSILVER FS001UM FSTRONT FVANADI FZINC NITRATE PH-LAB PHF1ELD PHOSPHA SULFATE TOC RU-106 SR 90 TC-99 TRITIUM u BETA C0-60 CS-137 HNITRAT I-129DW RU-I06 SR 90 TC-99 TRITIUM u ALKALIN AMMONIU CHLORID CONDFLD CYANIDE FANTIMO FBARIUM FBERYLL FCADMIU FALUMIN	< < < < < < < < < < < < < < < < <-< < < < < < < < < <	< < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < <	8.6800E+03 l.OOOOE+01 l.OOOOE+01 S.OOOOE+01 S.OOOOE+OO S.OOOOE+02 7.5900E+03 S.OOOOE+OO l.OOOOE-01 l.OOOQE+01 S.OOOOE+02 3.0000E+02 4.7800E+03 S.OOOOE+OO l.OOOOE+01 2. 9100E+05 3.0000E+02 2.1000E+01 6.0000E+OO l.OOOOE+01 l.OOOOE+01 3.3500E+02 l.OOOOE+01 l.OOOOE+01 l.OOOOE+01 1.0000E+01 l.OOOOE+01 1.0000E+01 1.0000E+Ol 1.0000E+01 1. 5700£+04 1.0000E+01 1.0000£+01 l.OOOOE+01 l.OOOOE+01 7.9400E+OO ?.SOOOE+OO 1. OOOOE+OJ 6.1500E-03 9.1/00E-04 5.0000E+02 6. 3900E+OO 2.4100E+OO 3.0300E+04 2.2100E+04 l.OOOOE+OI 5.4300E+02 l.OOOOE+OI 5.4000E+OO 1.0000E+01 1.0000E+01 I.OOOOE+01 I.OOOOE+OI I.OOOOE+OI 1.9100E+03 1.3400E+OO l.OOOOE+OI 1.0600E+OI 2.2600E+OO -4.4500E+OO -4.6700E+OI 1.0400E+OI 1. 4200E+OO -3.7600E+OO 1.3700E+04 3.3500E+04 1.0000E+01 I.OOOOE+01 3.0000E+01 5.0000E+02 I.0900E+04 S.OOOOE+OO I.OOOOE+01 5.6200E+03 I.OOOOE+01 I.3400E+04 1.7800E+02 2.0000E+01 S.OOOOE+OO I. 9900E+04 7. 9000E+OO 8.0000E+OO 1.0000E+03 2. 4600E+04 S.OOOOE+O? -3.1800E+OI -3.3700E-01 3. 2300E+OI 4.9200E+03 1. 6300E+OO 8. 3500E+OO -2.6500E+OO -2.7100E+OO 1.7600E+04 9.4900E-01 3.3600E+OI -3.4400E-02 2.1200E+Ol 5.4700E+03 1.6600E+OO l.IIOOE+05 5.0000E+OI S.OOOOE+03 2.8800E+OZ I.OOOOE+OI 1.5000E+02 1. OOOOE+OZ 2.4000E+OI 5.00QOE+OO Z.OOOOE+OO	PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PP8 PPB PPB PPB PPB PPB PPB PP8 PP8 PPB PPB PP8 PPB PPB PPB PPB PPB PPB PPB PPB PP8 PPB PCI /L PCI/L PPB PCI/L PCI/L PPB PPB PCI/L PPB PPB PPB PPB PPB PPB PPB PPB PPB PCI/L PPB PCI/L PC IlL PCI/L PCI/L PC!/L PCI/L PC!/L PPB PPB PPB PPB PPB PP8 PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPB PPR PPB PCI/L PCI/L PCI/L PCI/L PCI/L PC!/L PCI/L PCI/l PPB PCI/L PCI/L PCI/L PCI/L PCI/L PC!/l PPB UMHO PPB PPB PPB PPB PPB PPB PPB
				8.43 B.44 8.45				

TABLE C .

 C !. (contd) 


	Constituent	Co 11 ect ion tnd Preservation a,b)	Analysls Methods c)	Detectioyd) Limit. ppb
	RADIOLOGICAL			
	Radium	P, HN03 to pH<2	SW-846,(h) #9315	
	Gross alpha	P, HN03 to pH<2	SW-846, #9310	
	Gross beta	P, HN03 to pH<2	SW-846, #9310	
	Tritium	P, None	ASTM, 02476-81	
	OlHER			
	Coliform bacteria Temperature	P, None Field measurement PNL -MA-567, 1) SW-846, #91{1	
			FA-I	
	Specific conductance	Field measurement PNL-MA-567, FA-2	
	pH	Field measurement PNL-MA•567, FA-3	
	Total organic halogen, G, H2S04 to pH<2 SW-846, #9020 low detection level No headspace	
	Total organic carbon	G, H3P04 to pH<2 SW-846, #9060	
	Total carbon Ammonium ion Phenol Cyanide	G, None G, H2S04 to pH<2 ASTM 01426-D j) SW-846, #906~ SW-846, #8040 G, None P, NaOH to pH<2 SW-846, #9010	
	Hydrazine Total dissolved solids P, None G, HCl	ASTM 01385 Std. Methods 209a(k)	

P, plastic; G, glass. 


  g) ln•house analytical method from UST Procedure Manual UST-RD-PM; adapted from Method 300.0, EPA 600/4-84-017 (March 1984). The method also references ASTM 02460, "Standard Test Method for Radionuclides of Radium in Water 11 ; and "Prescribed Procedures for Measurement of Radioactivity in Drinking Water, 11 EPA-60~-80-032, edited by Herman L. Krieger and Earl l. Whittaker, 1980, Environmental Monitoring and Support Laboratory, Cincinnati, Ohio. (PNL 1989). By ion selective electrode. Standard Methods for the Examination of Water and Wastewater, 16th ed., 1985, published jointly by the American Public Health Association, American Water Works Association and Water Pollution Control Federation (ALPHA 1985). 


		I pCi/L
		4 pCi/L
		8 pCi/L
		500 pCi/L
		2. 2 MPN
		10
		2000
		2000
		50
		10
		10
		30
	(a)	
	(b)	
	(c)	
	(d)	
	(e)	Adapted from USEPA Method 6010; (EPA 1986).
	(f)	IC, ion chromatography.
	(h)	
	( i )	
	( j)	
	( k)	

(C.4.. 
TABLE C .2. Preservation Techniques, Analytical Methods Used, and the Current Detection Levels fqr)Additional Constituents on the 9905

 C and Appendix IX Liststa 


	Constituent	co 11 ect ion "Cd Preservation\ ,c)
	ICP METALS, ENHANCED ADDITIONS

TABLE C .

 C 2. 


					(contd)	
	Constituent	collection tCd Preservation ,a)	Analys~~ Methods J	Detectio? Limit, ggb e)
	DIRECT AQUEOUS INJECTION			
	Allyl alcohol Chloroacetaldehyde 3-chloroproprionitrile Acrylamide Ethyl carbamate Ethyl cyanide Ethylene glycol Isobutyl alcohol Para lydehyde N-proprylamine 2-probyb-1-ol	1 G,	None	~~im• #8240	10,000 2,500 16,000 4,000 5,000 2,000 10,000 1,000 2,000 10,000 8,000
	DIOXINS					
	PCDDs PCDFs 2,3,7,8 TCDD	}	G,	None	SW-846, #8280	0.01 0.01 0.01
	VOAs, ENHANCED ADDITIONS			
	1,4-dioxane Pryidine Acrolein Acrylonitrile Bis(chloromethyl) ether			500 500 10 10
	Bromoacetone					
	Methyl bromide					
	Carbon disulfide				
	Chlorobenzene 2-chloroethylvinyl-				
	ether					
	Methyl chloride Chloromethylmethyl-	G, No headspace	SW-846, #8240	
	ether					
	Crotonaldehyde					
	1,2-dibromo-3-					
	chloropropane				
	1,2-Dibromoethane				
	Dibromomethane					
	1,4-dichloro-2-butene				
	Dichlorodiflouro-				
	methane					
	1,2-dichloropropane				
	N-N-diethylhydrazine 1,1-dimethylhydrazine				
				C.6		

This plan introduces the procedures and methods that will be used for sample collection (including well evacuation and sample withdrawal methods), field measurements, sample preservation and shipment, chemical analysis, chain of custody, and quality control. 
All sampling Laboratory (PNL). 
activities are currently performed by Pacific Northwest United States Testing Company, Incorporated (UST), currently conducts sample analyses for most constituents. 

C.! SAMPLE COLLECTION PROCEDURES

The procedures for ground-water sample collection, water-level measurements, and field measurements are contained in Procedures for Ground-Water Investigations (PNL 1989). Specific applicable procedures are: 
• GC-1 Ground-Water Sample Collection Procedure 

• GC-2

In-Line Sample Filtration Procedure (h) There are more than 100 additional semivolatile compounds on the 11 long list 11 that are not listed here. Most of these analyses have a detection level of 10 ppb. 
(i) In-house analytical method from UST Procedure Manual, UST-RD-PM, adapted from Method 300.0, EPA-600/4-84-017 (March !984). (j) IC, ion chromatography. 

C.4 QUALITY ASSURANCE/QUALITY CONTROL


Quality Assurance

Quality assurance (QA) will be conducted in accordance with the PNL quality assurance manual. A generic QA plan describing the manner in which generic QA requirements are to be met has been prepared in accordance with that manual. Any site-specific requirements are presented in the Project Management Plan. 
c.8 

• Quality Control

The purpose of quality control is to determine and document the quality of the analytical results being produced by the laboratory and to bring potential problems with analyses to the attention of UST for corrective actions as needed. The QC effort has two main components: I) routine internal checks performed by UST, and 2) external checks conducted by PNL to independently evaluate UST performance. The scope of these efforts is described in the following sections. 

Unjted States Testing Company, Incorporated, Internal Quality Control

Internal quality control at UST includes general practices applicable to a wide range of analyses, as well as specific procedures stipulated for particular analyses. The quality control and quality assurance programs at UST are documented in the UST Quality Control Manual (Hembree et al: 1986) and the Quality Assurance Manual (Hembree and Lardy !986). UST produces a quarterly Qyality Control Report of Hazardous Substance Analyses and submits it to PNL for review by subcontracts, sample analyses management, quality control, and statistical task leaders of the ground-water monitoring program. 

UST External Quality Control

Pacific Northwest Laboratory will use both interlaboratory comparisons and spiked, replicate, and blank samples in evaluating the accuracy of results from UST. The purpose and scope of each of these is as follows. 
Interlaboratory comparisons using field samples are conducted to determine if the results obtained by the primary laboratory, UST, are comparable to those obtained from other laboratories. Comparisons are currently being conducted for anions, volatile organic constituents, metals, and gross alpha and beta. Each month, replicate samples from selected wells are delivered to four different PNL laboratories. The results from these PNL laboratories are then compared with the results from UST. Samples sent to PNL laboratories are from the same sampling set as those to be analyzed in duplicate by UST. 
Replicate analyses of field samples are conducted to establish how much variability might be expected in the laboratory measurements performed on C.9 nearly identical samples. Trip (transport) blanks and transfer blanks are submitted to UST to determine whether environmental conditions encountered during collection and transportation of samples have affected the results obtained by analysis. One set of trip blanks and transfer blanks are submitted each sample period per sample area at the rate of at least one for I to 20 wells. These blanks are analyzed for volatile organic constituents. Blanks for a wide range of analytes are submitted to UST monthly to check for container or laboratory contamination. 
Blind samples are submitted to UST to estimate the bias of analytical laboratory procedures and to determine when this bias exceeds control limits.
B N Bjornstad, S Dudziak, O E2&-, H "')~
'"' AOO