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CHEMICAL AND RADIOCHEMICAL CONSTITUENTS IN WATER FROM WELLS IN THE VICINITY OF THE NAVAL REACTORS FACILITY, IDAHO NATIONAL ENGINEERING AND ENVIRONMENTAL LABORATORY, IDAHO, 1999
U.S. GEOLOGICAL SURVEY OPEN-FILE Report 01-27
Prepared in cooperation with the U.S. DEPARTMENT OF ENERGY
^USGSscience fora changing world
CHEMICAL AND RADIOCHEMICAL CONSTITUENTS IN WATER FROM WELLS IN THE VICINITY OF THE NAVAL REACTORS FACILITY, IDAHO NATIONAL ENGINEERING AND ENVIRONMENTAL LABORATORY, IDAHO, 1999
By Roy C. Bartholomay, LeRoy L Knobel, Betty J. Tucker, and Brian V. Twining
U.S. GEOLOGICAL SURVEY Open-File Report 01-27
Prepared in cooperation with the U.S. DEPARTMENT OF ENERGY
Idaho Falls, Idaho
January 2001
U.S. DEPARTMENT OF THE INTERIOR GALE A. NORTON, Secretary
U.S. GEOLOGICAL SURVEY
CHARLES G. GROAT, Director
Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not constitute endorsement by the U.S. Government.
For additional information write to:
U.S. Geological Survey INEEL,MS 1160 P.O. Box 2230 Idaho Falls, ID 83403
Copies of this report can be purchased from:
U.S. Geological Survey Information Services Box 25286, Federal Center Denver, CO 80225
CONTENTS
Abstract..................................................................................................................................... 1Introduction............................................................................................................................... 1
Purpose and scope......................................................................................................... 1Hydrologic conditions .................................................................................................. 3
Surface water.................................................................................................... 3Ground water.................................................................................................... 5
Guidelines for interpreting results of radiochemical analyses...................................... 5Guidelines for interpreting results of inorganic and organic analyses.......................... 7Acknowledgments........................................................................................................ 7
Methods and quality assurance................................................................................................. 7Sample containers and preservatives............................................................................ 8Sampling locations and sample collection.................................................................... 8Quality assurance.......................................................................................................... 8
Analytical results ..................................................................................................................... 8Dissolved anions and total cations................................................................................ 8Total trace elements ..................................................................................................... 9Dissolved and total nutrients..........................................................................................9Total organic carbon and total organic halogens......................................................... 10Gross alpha- and gross beta-particle radioactivity.......................................................10Strontium-90................................................................................................................10Tritium.........................................................................................................................10Selected gamma-emitting radioisotopes...................................................................... 10Regulatory volatile and base/neutral organic compounds...........................................11
Summary..................................................................................................................................11Selected references...................................................................................................................11
FIGURES
Figures 1-2. Maps showing:1. Location of the Idaho National Engineering and Environmental Laboratory,
Naval Reactors Facility, and other selected facilities............................................... 22. Location of wells, Naval Reactors Facility and vicinity, Idaho National
Engineering and Environmental Laboratory .............................................................43. Water levels in two wells near the Naval Reactors Facility ......................................6
111
TABLES
Table 1. Containers and preservatives used for water samples, Naval ReactorsFacility and vicinity..................................................................................................15
2. Results of measurements of water for alkalinity, pH, specific conductance, temperature, and turbidity, and calculated total dissolved solids, Naval Reactors Facility and vicinity................................................................................... 16
3. Concentrations of dissolved anions and total cations in water, Naval Reactors Facility and vicinity .................................................................................................19
4. Concentrations of selected total trace elements in water, Naval Reactors Facility and vicinity.............................................................................................................. 22
5. Concentrations of dissolved and total nutrients, total organic carbon, and total organic halides in water, Naval Reactors Facility and vicinity............................... 29
6. Concentrations of gross alpha-particle radioactivity, gross beta-particle radioactivity, strontium-90, tritium, and selected isotopes from gamma spectroscopy in water, Naval Reactors Facility and vicinity.................................. 32
7. Regulatory volatile organic compounds for which water samples were analyzed.. 368. Base/neutral organic compounds for which water samples were analyzed............. 37
CONVERSION FACTORS, VERTICAL DATUM, AND ABBREVIATED UNITSMultiply Bv To obtainfoot (ft) 0.3048 meterinch (in.) 25.4 millimetermile (mi) 1.609 kilometer
/*
square mile (mi ) 2.590 square kilometeracre-foot (acre-ft) 1,233 cubic meterfoot per mile (ft/mi) . 1894 meter per kilometerpicocurie per liter (pCi/L) .037 becquerel per liter
For temperature, degrees Celsius (°C) can be converted to degrees Fahrenheit (°F) by using the equation: °F = (1.8)(°C) + 32.Sea level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929 a geodetic datum derived from a general adjustment of the first-order level nets of the United States and Canada, formerly called Sea Level Datum of 1929. Abbreviated units used in report: mg/L (milligram per liter); jig/L (microgram per liter); pCi/L (picocuries per liter).
IV
CHEMICAL AND RADIOCHEMICAL CONSTITUENTS IN WATER FROM WELLS IN THE VICINITY OF THE NAVAL REACTORS FACILITY, IDAHO NATIONAL ENGINEERING AND ENVIRONMENTAL LABORATORY, IDAHO, 1999by Roy C. Bartholomay, LeRoy L. Knobel, Betty J. Tucker, and Brian V. Twining
Abstract
The U.S. Geological Survey, in response to a request from the U.S. Department of Energy's Pittsburgh Naval Reactors Office, Idaho Branch Office, sampled water from 13 wells during 1999 as part of a long-term project to monitor water quality of the Snake River Plain aquifer in the vicinity of the Naval Reactors Facility, Idaho National Engineering and Environmental Labora tory, Idaho. Water samples were analyzed for natu rally occurring constituents and anthropogenic contaminants. A total of 52 samples were collected from the 13 monitoring wells. The routine samples contained detectable concentrations of total cations and dissolved anions, and nitrite plus nitrate as nitrogen. Most of the samples also contained detectable concentrations of gross alpha- and gross beta-particle radioactivity and tritium. Eight qual ity-assurance samples also were collected and ana lyzed; four were field-blank samples, and four were replicate samples. Most of the field blank samples contained less-than-detectable concen trations of target constituents.
INTRODUCTION
The Idaho National Engineering and Environ mental Laboratory (INEEL), encompassing about 890 mi2 of the eastern Snake River Plain in south eastern Idaho (fig. 1), is operated by the U.S. Department of Energy (DOE). INEEL facilities are used in the development of peacetime atomic- energy applications, nuclear safety research, defense programs, and advanced energy concepts. At the Naval Reactors Facility (NRF) (fig. 1), one facility at the INEEL, small amounts of some con stituents have been released to the environment as described in two NRF Remedial Investigation/Fea sibility Studies (Bettis Atomic Power Laboratory, 1994,1997).
This study was conducted by the U.S. Geologi cal Survey (USGS) in cooperation with the DOE's Pittsburgh Naval Reactors Office, Idaho Branch Office (IBO). IBO is responsible for the NRF at the INEEL. IBO requires information about the mobil ity of radionuclide- and chemical-waste constitu ents in the Snake River Plain aquifer. Waste- constituent mobility is determined principally by (1) the rate and direction of ground-water flow; (2) the locations, quantities, and methods of waste dis posal; (3) waste-constituent chemistry; and (4) the geochemical processes taking place in the aquifer (Orr and Cecil, 1991, p. 2).
Purpose and Scope
In 1989, IBO requested that the USGS initiate a water-quality data-collection program in the vicin ity of the NRF at the INEEL (fig. 1). The purpose of the data-collection program is to provide IBO with water-chemistry data to evaluate the effect of NRF activities on the water quality of the Snake River Plain aquifer.
Through 1995, the data-collection program con sisted of three rounds of sample collection. Round one was a one-time sampling of each well for a comprehensive suite of chemical constituents that approximates those contained in the U.S. Environ mental Protection Agency's (EPA) Ground-Water Monitoring List Appendix DC (U.S. Environmen tal Protection Agency, 1989, p. 636-642). Round two consisted of bimonthly collection of samples five times from each well that were analyzed for the chemical constituents listed in Appendix ni- EPA Interim Primary Drinking Water Standards, the constituents listed as parameters establishing ground-water quality, and selected measurements used as indicators of ground-water contamination (U.S. Environmental Protection Agency, 1989, p. 660-661, 730). Additional constituents analyzed during round two included copper, nickel, zinc, and
113*30'Idaho National Engineering and EnvironmenteTj4l> >ratory
44 00'
43 3ff
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10 20 MILES
0 10 20 KILOMETERS
EXPLANATION
---- BOUNDARY OF IDAHO NATIONAL ENGINEERING AND ENVIRONMENTAL LABORATORY FACILITIES AT THE IDAHO NATIONAL ENGINEERING AND ENVIRONMENTAL LABORATORY
ANL-W ARGONNE NATIONAL LABORATORY-WEST
CFA CENTRAL FACILITIES AREA
CTF CONTAINED TEST FACILITY (formerly called Loss of Fluid Test Faclllty-LOFT)
EBR-1 EXPERIMENTAL BREEDER REACTOR NO. 1
INTEC IDAHO NUCLEAR TECHNOLOGY AND ENGINEERING CENTER
NRF NAVAL REACTORS FACILITY
PBF POWER BURST FACILITY
RWMC RADIOACTIVE WASTEMANAGEMENT COMPLEX
TAN TEST AREA NORTH
TRA TEST REACTOR AREA
1
Figure 1. Location of the Idaho National Engineering and Environmental Laboratory, Naval Reactors Facility, and other selected facilities.
extractable acid and base/neutral compounds. Round-three samples were collected quarterly through 1995. Constituents analyzed in 1994 included chloride, chromium, iron, lead, mercury, nickel, nitrate, silver, sodium, and sulfate. Other round-three measurements were gross alpha- and gross beta-particle radioactivity, pH, specific con ductance, and total organic carbon (TOC). The round-three sampling program was expanded in1995 to include analyses for aluminum, antimony, arsenic, barium, beryllium, cadmium, copper, man ganese, selenium, thallium, tritium, and zinc. As a result of expanded laboratory procedures, rounds one through three of the sample-collection program included analyses for constituents in addition to those listed above. Results of analyses of rounds one through three samples are presented by Kno- bel, Bartholomay, and others (1992), Bartholomay and others (1993), Tucker and others (1995), and Bartholomay, Knobel, and Tucker (1997).
An analysis by Westinghouse Electric Corpora tion of the water-chemistry data collected for the NRF monitoring program during 1989-95 indi cated that several changes to the program would improve the overall usefulness of the data. As a result, several older wells were eliminated from the program and replaced by monitoring wells specifi cally constructed to meet NRF needs and strategi cally placed to better intercept potential chemical plumes in ground water. To differentiate between the data generated from the NRF sampling pro gram in rounds one through three (1989-95) and subsequent data (1996), the samples collected in1996 were designated round-four samples (Knobel and others, 1999). Wells sampled in rounds one through three that were eliminated from the pro gram were four water-supply production wells with line shaft turbine pumps (NRF-1, -2, -3, and -4; fig. 2) and three monitoring wells (USGS 15, USGS 17, and Water Supply INEL-1; fig. 2) with dedi cated submersible pumps. The six newly con structed monitoring wells that were added to the sampling program in 1996 were NRF-8, -9, -10, - 11, -12, and -13 (fig. 2). All of these wells and the older monitoring wells that remain in the monitor ing network (NRF-6, NRF-7, USGS 12,97,98,99, and 102; fig. 2) have dedicated submersible pumps.
At the end of 1996, NRF increased validation requirements for ground-water data on the basis of
documents that supported the Record of Decision for the industrial waste ditch and NRF landfills. Because the USGS National Water Quality Labora tory (NWQL) could not supply this documentation cost effectively, NRF personnel sampled the wells during the first quarter of 1997. After further con sideration of the program, it was determined that the sampling could be done under the USGS Department of Defense Environmental Conserva tion Program. Under this program, sample analyses are contracted to Quanterra Environmental Labora tory Services. Starting in June of 1997, water sam ples collected by the USGS were analyzed by the Quanterra laboratory. Results from the 1997-98 sampling were presented by Bartholomay and oth ers (2000). This report presents results from the 1999 sampling. These samples are designated round-five samples. Location of wells sampled are shown in figure 2.
The constituent list for round-five samples was modified slightly from that from round-four sam ples because of availability of analyses at the labo ratory. The constituents included in the round-five sampling program and analytical results are pre sented in tables 3 through 8 at the back of this report. Field measurements and calculations for round-five samples included alkalinity as CaCC>3, pH, specific conductance, temperature, total dis solved solids (TDS), and turbidity. Total dissolved solids were estimated by multiplying specific con ductance by 0.543 as determined by Olmstead (1962, fig. 5). Round-five samples were collected quarterly at each well.
Hydrologic Conditions
The Snake River Plain aquifer is one of the most productive aquifers in the United States (U.S. Geological Survey, 1985, p. 193). The aquifer underlies the eastern Snake River Plain, a large, arcuate, structural basin in southeastern Idaho (fig. 1), and consists of a thick sequence of basalts and sedimentary interbeds.
Surface Water
The Big Lost River drains more than 1,400 mi2 of mountainous area that includes parts of the Lost River Range and the Pioneer Range west of the INEEL (fig. 1). Flow in the Big Lost River infil-
112°55' 112°52'30"
43042'30" -
43°40' -
43°37'30"
USGS 15
USGS 12*
NAVAL REACTORS NRF-13 FACILITY NRF-7.
NRF-6« NRF-1
NRF-3
USGS 102»7
S
Water Supply INEL-1
USGS 98
NRF-4:F-8 NRF-9
USGS 97
EXPLANATIONN . WELL-Entry, NRF-6, is well
identifier; open circle represents well sampled for previous study
0 0.5 1 MILE
0 0.5 1 KILOMETER I_______
Figure 2. Location of wells, Naval Reactors Facility and vicinity, Idaho National Engineering and Environmental Laboratory.
trates to the Snake River Plain aquifer along its channel and in sinks and play as near its terminus. Since 1965, excess runoff has been diverted to spreading areas in the southwestern part of the INEEL where much of the water rapidly infiltrates to the aquifer. Other surface drainages that recharge the Snake River Plain aquifer at the INEEL include the Little Lost River, Birch Creek, and Camas Creek (fig. 1) (Bartholomay, Tucker, and others, 1997, p. 18).
Ground Water
Recharge to the Snake River Plain aquifer is principally from infiltration of applied irrigation water, infiltration of streamflow, and ground-water inflow from adjoining mountain drainage basins. Some recharge may be from direct infiltration of precipitation, although the small amount of annual precipitation on the plain (8 in. at the INEEL), evapotranspiration, and the great depth to water (in places exceeding 900 ft) probably minimize this source of recharge (Orr and Cecil, 1991, p. 22-23).
Water in the Snake River Plain aquifer moves principally through fractures and interflow zones in the basalt. Most ground water moves through the upper 800 ft of saturated rocks. Hydraulic conduc tivities of basalt in the upper 800 ft of the aquifer, estimated from INEEL-wide transmissivity data, are from about 0.01 to 32,000 ft/day (Anderson and others, 1999, p. 1). Estimated hydraulic conductivi ties in a 10,365-ft deep test hole near NRF are smaller; at depths exceeding 1,500 ft, hydraulic conductivities are from 0.002 to 0.03 ft/day (Mann, 1986, p. 21). The effective base of the Snake River Plain aquifer in the western part of the INEEL is from about 815 to 1,710 ft below land surface (Anderson and others, 1996, table 3, p. 23).
Depth to water in wells completed in the Snake River Plain aquifer is from about 200 ft below land surface in the northern part of the INEEL to more than 900 ft in the southeastern part; in the vicinity of NRF, depth to water is about 375 ft below land surface. In March-May 1995, the altitude of the water table was about 4,575 ft above sea level near Test Area North (fig. 1) and about 4,425 ft above sea level near the Radioactive Waste Management Complex (fig. 1); near the NRF, the water table was about 4,475 ft above sea level. Water generally
flows southward and southwestward beneath the INEEL at an average hydraulic gradient of about 4 ft/mi; however, significant local variation in flow direction is common. Beneath the NRF, water gen erally flows southward. From March-May 1991 to March-May 1995, water-level changes in INEEL wells ranged from an 8.5-ft decline north of the NRF to a 2.5-ft decline in wells in the southern part of the INEEL; near the NRF, the water-level decline was about 6 to 8 ft. Water levels generally declined at the INEEL during 1992-95 because of drought (Bartholomay, Tucker, and others, 1997, p. 20-25), but since 1995, have risen (fig. 3).
Ground water moves southwestward from the INEEL and eventually discharges as springs along the Snake River downstream from Twin Falls, about 100 mi southwest of the INEEL (fig. 1). Approximately 3.7 million acre-ft of ground water was discharged in 1995 (C.E. Berenbrock, USGS, written commun., 1996).
Guidelines for Interpreting Results of Radiochemical Analyses
Concentrations of radionuclides are reported with an estimated sample standard deviation, s, that is obtained by propagating sources of analytical uncertainty in measurements. The following guide lines for interpreting analytical results are based on an extension of a method proposed by Currie (1984).
In the analysis for a particular radionuclide, lab oratory measurements are made on a target sample and a prepared blank. Instrument signals for the sample and the blank vary randomly. Therefore, it is essential to distinguish between two key aspects of the problem of detection: (1) the instrument sig nal for the sample must be larger than the signal observed for the blank before the decision can be made that the radionuclide was detected; and (2) an estimation must be made of the minimum radionu clide concentration that will yield a sufficiently large observed signal before the correct decision can be made for detection or nondetection of the radionuclide. The first aspect of the problem is a qualitative decision based on an observed signal and a definite criterion for detection. The second aspect of the problem is an estimation of the detec tion capabilities of a given measurement process.
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In the laboratory, instrument signals must exceed a critical level of 1.6s before the qualitative decision can be made as to whether the radionu- clide was detected. At 1.6s, there is a 95-percent probability that the correct conclusion not detected will be made. Given a large number of samples, as many as 5 percent of the samples with measured concentrations larger than or equal to 1.6s, which were concluded as being detected, might not contain the radionuclide. These measure ments are referred to as false positives and are errors of the first kind in hypothesis testing.
Once the critical level of 1.6s has been defined, the minimum detectable concentration can be determined. Radionuclide concentrations that equal 3s represent a measurement at the minimum detect able concentration. For true concentrations of 3s or larger, there is a 95-percent or larger probability that the radionuclide was detected in a sample. In a large number of samples, the conclusion not detected will be made in 5 percent of the samples that contain true concentrations at the minimum detectable concentration of 3s. These measure ments are referred to as false negatives and are errors of the second kind in hypothesis testing.
True radionuclide concentrations between 1.6s and 3s have larger errors of the second kind. That is, there is a larger-than-5-percent probability of false negative results for samples with true concen trations between 1.6s and 3s. Although the radio nuclide might have been detected, such detection may not be considered reliable; at 1.6s, the proba bility of a false negative is about 50 percent.
The critical level and minimum detectable con centration are based on counting statistics alone and do not include systematic or random errors inherent in laboratory procedures. The values 1.6s and 3s vary slightly with background or blank counts, with the number of gross counts for indi vidual analyses, and for different radionuclides. In this report, radionuclide concentrations less than 3s are considered to be below a "reporting level." The critical level, minimum detectable concentration, and reporting level aid the reader in the interpreta tion of analytical results and do not represent abso lute concentrations of radioactivity which may or may not have been detected.
Many analytical results of environmental radio activity measurements are at or near zero. If the true concentration for a given radionuclide is zero, a given set of analytical results for that radionu clide should be distributed about zero, with an equal number of negative and positive measure ments. Negative analytical results occur if the radioactivity of a water sample is less than the background radioactivity or the radioactivity of the prepared blank sample in the laboratory (American Society for Testing and Materials, 1992, p. 126; Knobel, Orr, and Cecil, 1992, p. 51).
Guidelines for Interpreting Results of Inorganic and Organic Analyses
The term "reporting level" used for radiochemi- cal analyses should not be confused with the term "reporting limit" used for inorganic and organic ' analyses. In this report, the term "reporting limit" is the lowest level at which measurements become quantitatively meaningful (Quanterra Environmen tal Services, 1998). Because of unpredictable matrix effects on detection limits, the laboratory reporting limits are set somewhat higher than the analytical method detection limits. Because of this, some estimated results are given.
Acknowledgments
The authors are grateful to Robert Hermandson of the USGS for checking data tables with original data and Kelly D. Willie of Bechtel-Bettis Corpo ration and Jeff Langman of the USGS for techni cally reviewing the manuscript.
METHODS AND QUALITY ASSURANCE
The methods used for collecting water samples generally followed the guidelines established by the USGS (Stevens and others, 1975; Wood, 1981; Claassen, 1982; W.L. Bradford, USGS, written commun., 1985; Hardy and others, 1989; Wilde and others, 1998). Descriptions of methods used for analysis are found in Quanterra Environmental Services (1998) and Thatcher and others (1977). The methods used in the field and the quality- assurance practices are described in the following sections.
Sample Containers and Preservatives
Sample containers and preservatives differed depending on the constituent(s) for which analyses were requested. Samples were placed in prepre- served containers in accordance with bottle-manu facturer requirements. Containers and preserva tives were supplied by the Quanterra Environmen tal Services Laboratory. The containers and preser vatives used for this study are listed in table 1 (all tables located at the end of report).
Sampling Locations and Sample Collection
Samples were collected from 13 monitoring wells (NRF-6, -7, -8, -9, -10, -11, -12, -13, USGS 12, 97,98, 99, and 102) equipped with dedicated submersible pumps. NRF-6, -7, -13, and USGS 12 are upgradient of the NRF; USGS 102 is west of NRF; NRF-11 and -12 are east of NRF; and the remaining monitoring wells are downgradient of NRF (fig. 2).
Samples were collected from a portable sam pling apparatus attached to the dedicated submers ible pumps. The apparatus was decontaminated before sampling at each site by rinsing with deion- ized water. Samples were collected after three well-bore volumes of water were purged from each well and field measurements indicated probable hydraulic and chemical stability. After collection, sample containers were sealed with laboratory film, labeled, and stored under secured conditions. Water samples were placed in ice chests, chilled when appropriate, sealed, and shipped the same day to the laboratory.
Conditions at the sampling site during sample collection were recorded in a field logbook, and a chain-of-custody record was used to track samples from the time of collection until delivery to the lab oratory. These records are available for inspection at the USGS INEEL Project Office. The results of field measurements and calculations for alkalinity, pH, specific conductance, water temperature, TDS, and turbidity are listed in table 2.
Quality Assurance
Internal quality control and the overall quality- assurance practices used by the Quanterra Labora
tory are described in a report by Quanterra Envi ronmental Services (1998). The water samples were collected by personnel assigned to the INEEL Project Office in accordance with a quality-assur ance plan for quality-of-water activities. The plan was finalized in June 1989, revised in March 1992 and again in 1996 (Mann, 1996), and is available from the USGS INEEL Project Office. Compara tive studies to determine agreement between ana lytical results for water-sample pairs by laboratories involved in the INEEL Project Office's quality-assurance program are summa rized by Wegner (1989), Williams (1996), and Wil liams (1997). Additional quality assurance used for this sampling program included four field-blank samples prepared with inorganic-free and organic- free water and four replicate samples. Bottles for the field-blank samples were filled in the field camper with the respective inorganic and organic- free water. Inorganic-free water was used for the radiochemical blanks. Respective bottles then were opened at the well while sample collection occurred. After collection of the primary sample, a replicate sample was immediately collected. Many organizations use the term "sequential replicate" rather than "replicate" sample.
ANALYTICAL RESULTS
During the period beginning in February 1999 and ending in November 1999, four sets of quar terly water samples were collected for round five of the NRF sampling program (table 2). All wells were sampled four times. Quality-assurance sam ples included four field-blank samples; NRF-6 (QAS-73), NRF-10 (QAS-68), NRF-11 (QAS-72), NRF-13 (QAS-70), and four replicate samples: NRF-9 (QAS-74), NRF-12 (QAS-67), USGS 97 (QAS-69), and USGS 98 (QAS-71).
Dissolved Anions and Total Cations
Water samples were analyzed for concen trations of dissolved chloride and sulfate and concentrations of total calcium, magnesium, potas sium, and sodium (table 3).
Concentrations of calcium in samples from the 13 wells ranged from 27.1 to 117 mg/L. Concentra tions of chloride ranged from 5.1 to 228 mg/L. Concentrations of magnesium ranged from 9.5 to
30.4 mg/L. Estimated concentrations of potassium ranged from 1.6 to 4.7 mg/L. Concentrations of sodium ranged from 8.2 to 95.6 mg/L. Concentra tions of sulfate ranged from 13.2 to 138 mg/L.
Concentrations in the four field-blank samples were not detected except in QAS-73, which con tained an estimated concentrations of 0.015 mg/L for calcium and 0.60 mg/L for sodium; and QAS-72 and -70, which contained estimated concentrations of 0.07 and 0.064 mg/L, respec tively, for calcium and 0.02 and 0.014 mg/L, respectively, for magnesium.
Total Trace Elements
Water samples collected in 1999 were analyzed for concentrations of total aluminum, antimony, arsenic, barium, beryllium, cadmium, chromium, copper, iron, lead, manganese, mercury, nickel, selenium, silver, thallium, and zinc (table 4).
Aluminum. Aluminum was detected in most samples from most wells; detectable concen trations ranged from an estimated 15 ^g/L in USGS 12 to 3,800 Hg/L in a sample from NRF-13.
Antimony. Antimony was not detected in any but one sample; one sample from USGS 97 con tained an estimated concentration of 3.2 ng/L.
Arsenic. Arsenic was not detected in any but one sample; one sample from NRF-6 contained an estimated concentration of 4.2 |ig/L.
Barium. Concentrations of barium ranged from 55.2 ^ig/L in USGS 98 to 180 ng/L in NRF-12.
Beryllium. Beryllium was not detected in most samples.
Cadmium. Cadmium was not detected in any samples.
Chromium. Concentrations of chromium ranged from an estimated 4.6 ng/L in USGS 99 to 92 ng/L in NRF-13.
Copper. Copper was not detected in most samples.
Iron. Iron was detected in most samples; detectable concentrations ranged from an estimated 9.0 \ngfL in USGS 97 to 3,500 ng/L in a sample from NRF-13.
Lead. Lead was not detected in many sam ples; detectable concentrations were as large as 9.2 ng/L in a sample from USGS 97.
Manganese. Manganese was not detected in many samples; detectable concentrations were as large as 67 ng/L in a sample from NRF-13.
Mercury. Mercury was not detected in most samples.
Nickel. Nickel was not detected in most sam ples; detectable concentrations were as large as 41.8 |ig/L in a sample from NRF-13.
Selenium. Selenium was detected in only two samples.
Silver. Silver was not detected in any sam ples.
Thallium. Thallium was detected in only two samples.
Zinc. Zinc was not detected in many samples; detectable concentrations were as large as 180 ng/L in a sample from USGS 98.
Field-blank samples contained either no detect able concentrations of trace elements or had esti mated concentrations smaller than the respective reporting limits.
Dissolved and Total Nutrients
Water samples were analyzed for concen trations of dissolved nitrite as nitrogen and for total concentrations of kjeldahl nitrogen, nitrite plus nitrate as nitrogen and phosphorus as phosphorus (table 5).
Kjeldahl nitrogen. Kjeldahl nitrogen was not detected in most samples; detectable concen trations were as large as 0.89 mg/L in a sample from USGS 102.
Nitrite as nitrogen. Nitrite as nitrogen was not detected in most samples; detectable concen trations were as large as 0.33 mg/L in a sample from NRF-7.
Nitrite plus nitrate as nitrogen. Concentra tions ranged from 0.47 mg/L in NRF-6 and -7 to 2.4 mg/L in USGS 97 and USGS 102.
Phosphorus as phosphorus. Phosphorus as phosphorus was detected in most samples; detect-
able concentrations were as large as 0.13 mg/L in a sample from NRF-13.
Field-blank samples contained either no detect able concentrations of nutrients or had estimated concentrations smaller than the reporting limits.
Total Organic Carbon and Total Organic Halogens
Water samples were analyzed for concen trations of TOC and total organic halogens (TOX) (table 5). TOC and TOX were not detected in most samples. TOC and TOX were not detected in any blank samples.
Gross Alpha- and Gross Beta-Particle Radioactivity
Water samples were analyzed for concen trations of dissolved gross alpha- and gross beta- particle radioactivity by the Quanterra Laboratory in Richland, Wash, through a contract with the NWQL using a residue procedure. Concentrations of radioactive constituents larger than or equal to 3 times the Is uncertainty are considered to be above the reporting level in this report. All analytical measurements are listed in table 6. For a more detailed discussion of reporting levels for radioac tive constituents and measurements, see the section of this report titled "Guidelines for Interpreting Results of Radiochemical Analyses."
Gross alpha-particle radioactivity. Gross alpha-particle radioactivity is a measure of the total radioactivity given off as alpha particles during the radioactive decay process. For convenience, labo ratories report the radioactivity as if it all were given off by one radionuclide. In this report, concentrations are reported as thorium-230 in pico- curies per liter. Concentrations of dissolved gross alpha-particle radioactivity are listed in table 6.
Concentrations of gross alpha-particle radioac tivity as thorium-230 ranged from -0.34±0.12 pCi/L in NRF-12 to 8.0±2.4 pCi/L in NRF-6. Con centrations in all the field blank samples were less than the reporting level.
Gross beta-particle radioactivity. Gross beta- particle radioactivity is a measure of the total radioactivity given off as beta particles during the
radioactive decay process. For convenience, labo ratories report the radioactivity as if it all were given off by one radionuclide, cesium-137, in pico- curies per liter. Concentrations of dissolved gross beta-particle radioactivity are listed in table 6.
Concentrations of gross beta-particle radioac tivity as cesium-137 ranged from 0.34±0.75 pCi/L in NRF-6 to 7.6±1.0 pCi/L in NRF-6. Concentra tions in all the field blank samples were less than the reporting level.
Strontium-90
Water samples were analyzed for strontium-90 by chemical separation and beta counting (table 6). The concentrations of strontium-90 in all but one regular sample and in all field-blank samples were less than the reporting level. A sample from NRF-12 contained 0.49±0.16 pCi/L.
Tritium
Water samples were analyzed for tritium by the University of Georgia Center for Isotopic Studies Laboratory through a contract with the NWQL by enrichment and liquid scintillation (table 6). Con centrations of tritium ranged from <3.57 pCi/L in . NRF-7 to 200±28 pCi/L in NRF-11. The concen trations of tritium in field blank samples ranged from 14±1.5 pCi/L in QAS-73 (blank for NRF-6) to 51±4.8 pCi/L in QAS-70 (blank for NRF-13).
Selected Gamma-Emitting Radioisotopes
Gamma spectrometry involves using a series of detectors to simultaneously determine the concen trations of a variety of radionuclides by the detec tion of their characteristic gamma emissions. Radionuclides identified in selected samples include cobalt-60, cesium-137, potassium-40, radium-226, radium-228, thorium-228, uranium- 235, uranium-238, and thallium-208. Concentra tions of all the radionuclides identified using gamma spectrometry are given in table 6.
Concentrations reported as cesium-137 in all the regular field blank samples were less than the reporting level.
10
Regulatory Volatile and Base/Neutral Organic Compounds
Water samples collected in July 1999 were ana lyzed for 59 regulatory volatile organic compounds (table 7) and 17 base/neutral organic compounds (table 8). Concentrations of chloroform and tetra- chloroethylene in one sample (NRF-6) were 0.2 and 0.3 ^g/L, respectively. Concentrations of regu latory volatile organic compounds in all other sam ples were less than the reporting limits. Concentra tions of Di(2-ethylhexyl) phthalate in two samples (NRF-9 and USGS 97) were 0.6 and 1.2 ng/L, respectively. Concentrations of base/neutral organic compounds in all other samples were less than the reporting limits.
SUMMARY
The USGS, in response to a request from the U.S. Department of Energy's Pittsburgh Naval Reactors Office, Idaho Branch Office, sampled 13 wells during 1999 as part of a long-term project to monitor water quality of the Snake River Plain aquifer in the vicinity of the NRF, INEEL, Idaho. Water samples were collected and analyzed for nat urally occurring constituents and anthropogenic contaminants. A total of 52 samples were collected from 13 monitoring wells with dedicated submers ible pumps. Eight quality-assurance samples also were collected and analyzed; four were field-blank samples and four were replicate samples.
The ranges of concentrations of dissolved anions and total cations follow: calcium, 27.1 to 117 mg/L; chloride, 5.1 to 228 mg/L; magnesium, 9.5 to 30.4 mg/L; potassium, 1.6 to 4.7 mg/L; sodium, 8.2 to 95.6 mg/L; and sulfate, 13.2 to 138 mg/L.
Samples were analyzed for 17 trace elements. Antimony, arsenic, beryllium, cadmium, copper, manganese, mercury, nickel, selenium, silver, thal lium, and zinc were not detected in most samples, concentrations of manganese, nickel, and zinc were as large as 67,41.8, and 180 ^ig/L, respectively. Aluminum, lead, and iron were detected in most samples. The largest concentration of iron was 3,500 |ig/L. The ranges of concentrations for bar ium and chromium were 55.2 to 180 jig/L and 4.6
to 72 p.g/L, respectively. Concentrations of the pre dominant nitrogen-bearing compound, nitrite plus nitrate as nitrogen, ranged from 0.47 to 2.4 H-g/L.
TOC and TOX were not detected in most sam ples.
Concentrations of dissolved gross alpha- and gross beta-particle radioactivity and tritium exceeded the reporting level in most samples. Con centrations of strontium-90 and gross gamma as cesium-137 were less than the reporting level in most samples.
Concentrations of two regulatory volatile organic compounds were detected in one sample. Concentrations of the base/neutral organic com pound Di(2-ethylhexyl) phthalate were detected in two samples. All of the field blank samples con tained concentrations of the constituents that were less than the reporting limits.
SELECTED REFERENCES
Ackerman, D.J., 1991, Transmissivity of the Snake River Plain aquifer at the Idaho National Engineering Laboratory, Idaho: U.S. Geological Survey Water-Resources Investigations Report 91-4058 (DOE/ID- 22097), 35 p.
American Society for Testing and Materials, 1992, ASTM standards on precision and bias for various applications: Philadelphia, Pa., American Society for Testing and Materials Publication code number (PCN) 03-511092- 34,478 p.
American Society for Testing and Materials, 1998, Standard method for high-resolution gamma- ray spectrometry of water (D3649-91): Philadelphia, Pa., American Society of Testing and Materials 1998 Annual Book of ASTM Standards, v. 11.02,1,048 p.
Anderson, S.R., Ackerman, D.J., Liszewski, M.J., and Freiburger, R.M., 1996, Stratigraphic data for wells at and near the Idaho National Engineering Laboratory, Idaho: U.S. Geological Survey Open-File Report 96-248 (DOE/ID-22127), 27 p., 1 diskette.
11
Anderson, S.R., Kuntz, M.A., and Davis, L.C., 1999, Geologic controls of hydraulic conductivity in the Snake River Plain aquifer at and near the Idaho National Engineering and Environmental Laboratory, Idaho: U.S. Geological Survey Water-Resources Investigations Report 99-4033 (DOE/ID- 22155), 38 p.
Bartholomay, R.C., Knobel, L.L., and Tucker, B.J., 1993, Chemical constituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering Laboratory, Idaho, 1990-91: U.S. Geological Survey Open-File Report 93-94 (DOE/ID- 22106), 70 p.
1997, Chemical and radiochemicalconstituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering Laboratory, Idaho, 1994-95: U.S. Geological Survey Open-File Report 97- 806 (DOE/ID-22143), 70 p.
Bartholomay, R.C., Knobel, L.L., Tucker, B.J., and Twining, B.V., 2000, Chemical and radio- chemical constituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering and Environ mental Laboratory, Idaho, 1997-98: U.S. Geological Survey Open-File Report 00-236 (DOE/E)-22165),52p.
Bartholomay, R.C., Tucker, B.J., Ackerman, D.J., and Liszewski, M.J., 1997, Hydrologic condi tions and distribution of selected radio- chemical and chemical constituents in water, Snake River Plain aquifer, Idaho National Engineering Laboratory, Idaho, 1992 through 1995: U.S. Geological Survey Water- Resources Investigations Report 97-4086 (DOE/ID-22137), 57 p.
Bettis Atomic Power Laboratory Naval Reactors Facility, 1994, Remedial investigation/ feasibility study for the external industrial waste ditch, operable unit 8-07: Westinghouse Electric Corporation NRFRC- EC-1046, 26 p.
1997, NRF comprehensive remedialinvestigation/feasibility study, waste area group 8: Westinghouse Electric Corp., [unpaginated].
Claassen, H.C., 1982, Guidelines and techniques for obtaining water samples that accurately represent the water chemistry of an aquifer: U.S. Geological Survey Open-File Report 82-1024, 49 p.
Currie, L.A., 1984, Lower limit ofdetection Definition and elaboration of a proposed position for radiological effluent and environmental measurements: U.S. Nuclear Regulatory Commission NUREG/CR-4077, 139 p.
Hardy, M.A., Leahy, P.P., and Alley, W.M., 1989, Well installation and documentation, and ground-water sampling protocols for the pilot National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 89-396, 36 p.
Iman, R.L., and Conover, W.J., 1983, A modern approach to statistics: New York, John Wiley & Sons, Inc., 497 p.
Knobel, L.L., Bartholomay, R.C., Tucker, B.J., and Williams, L.M., 1999, Chemical and radiochemical constituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering and Environmental Laboratory, Idaho, 1996: U.S. Geological Survey Open-File Report 99-272 (DOE/ID-22160), 58 p.
Knobel, L.L., Bartholomay, R.C., Wegner, S.J., and Edwards, D.D., 1992, Chemical constituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering Laboratory, Idaho, 1989-90: U.S. Geological Survey Open-File Report 92- 156(DOE/ID-22103), 38 p.
Knobel, L.L., Orr, B.R!, and Cecil, L.D., 1992, Summary of background concentrations of selected radiochemical and chemical constituents in groundwater from the Snake
12
River Plain aquifer, Idaho estimated from an analysis of previously published data: Journal of the Idaho Academy of Science, v. 28, no. 1, p. 48-61.
Mann, L.J., 1986, Hydraulic properties of rock units and chemical quality of water for INEL- 1 a 10,365-foot deep test hole drilled at the Idaho National Engineering Laboratory, Idaho: U.S. Geological Survey Water- Resources Investigations Report 86-4020 (DOE/ID-22070), 23 p.
1989, Tritium concentrations in flow from selected springs that discharge to the Snake River, Twin Falls-Hagerman area, Idaho: U.S. Geological Survey Water-Resources Investigations Report 89-4156 (DOE/ID- 22084), 20 p.
1996, Quality-assurance plan and fieldmethods for quality-of-water activities, U.S. Geological Survey, Idaho National Engineering Laboratory, Idaho: U.S. Geological Survey Open-File Report 96-615 (DOE/ID-22132), 37 p.
Olmstead, F.H., 1962, Chemical and physical character of ground water in the National Reactor Testing Station, Idaho: U.S. Atomic Energy Commission Publication IDO-22043, 81 p.
Orr, B.R., and Cecil, L.D., 1991, Hydrologic conditions and distribution of selected chemical constituents in water, Snake River Plain aquifer, Idaho National Engineering Laboratory, Idaho, 1986 to 1988: U.S. Geological Survey Water-Resources Investigations Report 91-4047 (DOE/ID- 22096), 56 p.
Quanterra Environmental Services, 1998, Quality Assurance Management Plan for environmental services, revision 3: Quanterra Environmental Services, [variously paged].
Stevens, H.H., Jr., Ficke, J.F., and Smoot, G.F., 1975, Water temperature influential factors, field measurement, and data presentation: U.S. Geological Survey Techniques of Water- Resources Investigations, book 5, chap. Dl, 65 p.
Thatcher, L.L., Janzer, V.J., and Edwards, K.W., 1977, Methods for determination of radioactive substances in water and fluvial sediments: U.S. Geological Survey Techniques of Water-Resources Investigations, book 5, chap. A5, 95 p.
Tucker, B.J., Knobel, L.L., and Bartholomay, R.C., 1995, Chemical constituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering Laboratory, Idaho, 1991-93: U.S. Geological Survey Open-File Report 95-725 (DOE/ID- 22125), 94 p.
U.S. Environmental Protection Agency, 1989, Protection of Environment, Code of Federal Regulations 40: Office of the Federal Register, National Archives and Records Administration, pts. 190 to 299, 1,027 p.
U.S. Geological Survey, 1985, National water summary, 1984 Hydrologic events, selected water-quality trends, and ground-water resources: U.S. Geological Survey Water- Supply Paper 2275, 467 p.
Wegner, S.J., 1989, Selected water qualityassurance data for water samples collected by the U.S. Geological Survey, Idaho National Engineering Laboratory, Idaho, 1980 to 1988: U.S. Geological Survey Water-Resources Investigations Report 89-4168 (DOE/ID- 22085), 91 p.
Wilde, F.D., Radtke, D.B., Gibs, J., and Iwatsubo, R.T., 1998, National field manual for the collection of water-quality data: U.S. Geological Survey Techniques of Water- Resources Investigations, book 9, [variously paged].
Williams, L.M., 1996, Evaluation of qualityassurance/quality control data collected by the U.S. Geological Survey for water-quality activities at the Idaho National Engineering Laboratory, Idaho, 1989 through 1993: U.S. Geological Survey Water-Resources Investigations Report 96-4148 (DOE/ID- 22129), 116 p.
13
-1997, Evaluation of quality assurance/quality Wood, W.W., 1981, Guidelines for collection and control data collected by the U.S. Geological field analysis of ground-water samples for Survey for water-quality activities at the Idaho selected unstable constituents: U.S. National Engineering Laboratory, Idaho, 1994 Geological Survey Techniques of Water- through 1995: U.S. Geological Survey Water- Resources Investigations, book 1, chap. D2, Resources Investigations Report 97-4058 24 p. (DOE/ID-22136), 87 p.
14
Table 1. Containers and preservatives used for water samples, Naval Reactors Facility and vicinity [Analyses were performed by Quanterra Laboratory. Abbreviations: L, liter; mL, milliliter. Symbols: HNO3 , nitric acid; sulfuric acid; HCL, hydrochloric acid; °C, degrees Celsius. Samples were shipped by overnight-delivery mail]
Container
Type of constituent
Anions
Cations, total recoverable
Trace elements, total recoverable
Nitrite
Nutrients, total recoverable
Specific conductance
Total organic carbon
Total organic halogens
Purgeable organic compounds
Semi-volatile organic compounds
Gamma
Gross alpha- and beta-particle radioactivity
Strontium-90
Tritium
Type
Polyethylene
Polyethylene
Polyethylene
Polyethylene
Glass, baked
Polyethylene
Glass, baked
Glass, baked
Glass, baked
Glass, baked
Polyethylene, acid-rinsed
Polyethylene, acid-rinsed
Polyethylene, acid-rinsed
Polyethylene or glass, baked
Size
1 L
500 mL
500 mL
1 L
500 L
1L
500 L
250 mL
40 mL
1L
1L
1L
1L
500 mL
Preservative
Type
None
HNO3
HNO3
None
H2SO4
None
H2SO4
H2SO4
HCL
None
HNO3
HNO3
HNO3
None
Volume
None
10 mL
10 mL
None
2mL
None
2mL
ImL
4 drops
None
20 mL
20 mL
20 mL
None
Other treatment
Filter
None
None
Filter
Chill 4°C
Filter
Chill 4°C
Chill 4°C
Chill
Chill
Filter
Filter
Filter
None
15
Tab
le 2
. Res
ults
of m
easu
rem
ents
of
wat
er f
or a
lkal
inity
, pH
, spe
cifi
c co
nduc
tanc
e, t
empe
ratu
re, a
nd tu
rbid
ity, a
nd c
alcu
late
d to
tal d
isso
lved
sol
ids,
Nav
alR
eact
ors
Faci
lity
and
vici
nity
[Sam
ple
iden
tifie
r: se
e fig
ure
2 fo
r lo
catio
n of
wel
ls. Q
AS
indi
cate
s w
ater
-qua
lity-
assu
ranc
e sa
mpl
e; 7
3, s
ampl
e nu
mbe
r; B
, fie
ld b
lank
; R, r
eplic
ate.
Dat
e sa
mpl
ed:
(m/d
/y),
mon
th/d
ay/y
ear.
Uni
ts: A
lkal
inity
, as
calc
ium
car
bona
te (C
aCO
3) in
mill
igra
ms
per l
iter (
mg/
L); p
H, n
egat
ive
base
-10
loga
rithm
of h
ydro
gen
ion
activ
ity in
mol
es p
er li
ter;
spec
ific
cond
ucta
nce,
mic
rosi
emen
s pe
r cen
timet
er a
t 25
deg
C (
degr
ees
Cel
sius
); te
mpe
ratu
re, d
eg C
; tot
al d
isso
lved
sol
ids,
mg/
L ca
lcul
ated
fro
m s
peci
fic c
ondu
ctan
ce; t
urbi
dity
; N
TU,
neph
lom
etric
turb
idity
uni
ts.
Abb
revi
atio
n: N
A,
not a
naly
zed.
Sym
bol:
*, e
stim
ated
res
ult]
Sam
ple
iden
tifie
r
NR
F-6
QA
S-73
B
NR
F-7
NR
F-8
NR
F-9
QA
S-74
R
NR
F-10
QA
S-68
B
NR
F-10
Dat
e sa
mpl
ed
m/d
/y
2/4/
99
5/3/
99
7/26
/99
11/1
/99
11/1
/99
2/4/
99
5/3/
99
7/26
/99
11/1
/99
2/1
1/99
5/3/
99
7/27
/99
11/2
/99
2/11
/99
5/4/
99
7/27
/99
11/2
/99
11/2
/99
2/11
/99
2/11
/99
5/4/
99
7/28
/99
11/2
/99
Tim
e
1325
1155
1155
1235
1315
1130
1110
1100
1140
1005
1320
1055
1005
1050
1030
1200
1050
1115
1150
1210
1115
0955
1145
Alk
alin
ity a
s C
aCO
3
179
178
181
184
NA
112
104
112
110
210
213
215
218
210
210
207
209
209
195
NA
194
198
196
PH 8.0
8.0
7.9
7.8
8.4
8.2
8.4
8.0
8.1
8.0
8.1
7.9
8.0
8.0
7.8
7.9
8.0
8.0
8.1
5.4
7.9
7.9
8.0
Spec
ific
co
nduc
tanc
e (f
ield
)
1,29
0
1,30
1
1,21
2
1,11
4 11
261
255
262
261
604
600
597
595
639
634
631
623
623
601 3
595
600
590
Spec
ific
cond
ucta
nce
(lab)
1,22
0
1,17
0
1,18
0
1,08
0 1.4*
258
254
265
264
590
572
593
571
623
594
624
598
598
589 2.
3
558
583
562
Tem
pera
ture
11.5
11.5
11.5
11.5
17.5
14.5
15.5
14.5
14.5
11.0
11.5
11.5
11.5
11.0
11.5
11.5
11.5
11.5
11.0 8.0
11.5
11.5
11.5
Tota
l di
ssol
ved
solid
s
700
706
658
605 6
142
138
142
142
328
326
324
323
347
344
343
338
338
326 2
323
326
320
Tur
bidi
ty
3.66
5.07
1.91
1.72 .24
6.56
4.48
10.1
43.7 .3
4
.42
.62
7.95 .4
5
.56
.51
.40
.40
1.48
NA 2.
67
2.75 1.88
Tab
le 2
. R
esul
ts o
f m
easu
rem
ents
of
wat
er f
or a
lkal
inity
, pH
, spe
cifi
c co
nduc
tanc
e, t
empe
ratu
re, a
nd t
urbi
dity
, an
d ca
lcul
ated
tota
l di
ssol
ved
solid
s, N
aval
R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
Sam
ple
iden
tifi
er
NR
F-11
QA
S-72
B
NR
F-11
NR
F-12
QA
S-67
R
NR
F-12
NR
F-13
QA
S-70
B
NR
F-13
USG
S 12
USG
S 97
QA
S-69
R
USG
S 97
USG
S 98
QA
S-71
R
Dat
e sa
mpl
ed
m/d
/y
2/11
/99
5/4/
99
7/28
/99
7/28
/99
11/3
/99
2/4/
99
2/4/
99
5/5/
99
7/28
/99
11/3
/99
2/11
/99
5/5/
99
5/5/
99
7/28
/99
1 1/3
/99
2/11
/99
5/5/
99
7/28
/99
1 1/3
/99
2/9/
99
5/4/
99
5/4/
99
7/27
/99
2/9/
99
5/4/
99
7/27
/99
7/27
/99
Tim
e
1250
1200
1100
1120
1040
1225
1300
1015
1215
1130
1335
1320
1400
1305
1225
0905
0920
0845
0940
1135
0940
0955
1005
0935
0805
0750
0830
Alk
alin
ity a
s C
aCO
3
205
207
205
NA
207
199
199
203
200
203
97 85 NA
103
105
196
198
197
200
220
218
218
219
176
176
179
179
PH 8.0
7.9
7.9
7.0
8.0
8.0
8.0
7.8
7.9
7.9
8.1
8.0
7.0
7.9
8.0
8.0
7.8
7.8
7.9
7.9
7.8
7.8
7.9
7.8
7.5 7.8
7.8
Spec
ific
co
nduc
tanc
e (f
ield
)
638
630
630 8
625
698
698
686
676
663
623
578 3
624
618
491
479
472
470
615
614
614
609
443
439
438
438
Spec
ific
co
nduc
tanc
e (l
ab)
623
589
614 2
595
680
678
639
657
630
607
547 3.
7
606
585
480
456
464
453
603
576
575
602
436
421
437
436
Tem
pera
ture
11.5
11.5
12.0
22.5
11.5
11.5
11.5
11.5
11.5
11.5
15.5
18.5
13.5
16.0
17.5
11.0
11.5
11.5
11.5
11.5
11.5
11.5
11.5
12.0
12.0
12.0
12.0
Tot
al
diss
olve
d so
lids
346
342
342 4
339
379
379
372
367
360
338
314 2
339
336
267
260
256
255
334
333
333
331
241
238
238
238
Tur
bidi
ty
3.87
37.6 2.33
1.22
1.94
2.06
2.06
7.17
6.14
3.95
56.4
105 .3
6
61.4
83.8 .4
2
.28
.59
1.20 .36
.47
.47
.28
.36
.65
.55
.55
Tab
le 2
. R
esul
ts o
f mea
sure
men
ts o
f wat
er f
or a
lkal
inity
, pH
, spe
cifi
c co
nduc
tanc
e, t
empe
ratu
re, a
nd tu
rbid
ity, a
nd c
alcu
late
d to
tal d
isso
lved
sol
ids,
Nav
al
Rea
ctor
s Fa
cilit
y an
d vi
cini
ty C
onti
nued
Sam
ple
iden
tifi
er
USG
S 98
USG
S 99
USG
S 10
2
Dat
e sa
mpl
ed
m/d
/y
11/2
/99
2/9/
99
5/4/
99
7/27
/99
1 1/2
/99
2/9/
99
5/3/
99
7/26
/99
11/1
/99
Tim
e
0745
1040
0850
0910
0835
1235
1240
1300
1325
Alk
alin
ity
as
CaC
O3
180
211
210
212
214
210
214
214
210
PH 8.0
8.0
7.8
7.9
8.0
7.9
8.1
7.9
7.8
Spec
ific
co
nduc
tanc
e (f
ield
)
438
530
528
526
530
604
602
596
593
Spec
ific
co
nduc
tanc
e (l
ab)
430
521
502
523
511
594
573
591
586
Tem
pera
ture
12.0
11.0
11.5
11.5
11.5
11.0
11.5
11.5
11.5
Tot
al
diss
olve
d so
lids
238
288
287
286
288
328
327
324
322
Tur
bidi
ty
.69
1.30
1.13 .72
1.09
1.38 .81
.22
.51
00
Table 3. Concentrations of dissolved anions and total cations in water, Naval Reactors Facility and vicinity [Analyses were performed by Quanterra Laboratory. Analytical results in milligrams per liter. Sample identifier: see figure 2 for location of wells. QAS indicates water-quality-assurance sample; 73, sample number; B, field blank; R, replicate. Date sampled: (m/d/y), month/day/year. Abbreviations: Q, reporting limit was elevated because of large analyte values; ND, not detected. Symbol: *, estimated concentration]
Sample identifier
NRF-6
QAS-73B
NRF-7
NRF-8
NRF-9
QAS-74R
NRF-10
QAS-68B
NRF-10
NRF-11
Date sampled m/d/y
2/4/99
5/3/99
7/26/99
11/1/99
11/1/99
2/4/99
5/3/99
7/26/99
11/1/99
2/11/99
5/3/99
7/27/99
11/2/99
2/11/99
5/4/99
7/27/99
11/2/99
11/2/99
2/11/99
2/11/99
5/4/99
7/28/99
11/2/99
2/11/99
5/4/99
7/28/99
Calcium (total)
114
117
111
96.3
.015*
27.1
27.7
30.0
28.3
70.5
71.5
71.6
66.7
74.9
75.3
74.7
68.7
71.0
68.7
ND
70.5
71.1
66.9
73.6
74.1
69.1
Chloride (dissolved)
199Q
228Q
191Q
176Q
ND
5.1
5.3
5.3
5.8
36.5
39.8
36.4
41.7
45.6
49.5
45.1
49.3
49.9
42.2
ND
45.7
41.7
50.0
46.6
44.5Q
47.2
Magnesium (total)
29.3
30.4
28.8
26.5
ND
9.5
9.7
9.8
9.8
22.3
23.1
23.1
22.9
23.0
23.3
23.4
22.7
23.2
21.7
ND
22.7
23.0
22.6
22.9
23.4
21.9
Potassium (total)
4.5*
4.7*
4.3*
3.7*
ND
3.0*
3.2*
2.9*
3.0*
2.4*
2.5*
2.2*
2.3*
2.2*
2.4*
2.2*
2.4*
2.4*
2.6*
ND
2.8*
2.4*
2.4*
2.4*
2.5*
2.5*
Sodium (total)
93.6
95.6
83.9
77.2
.60*
8.7
9.5
8.2
8.9
14.5
14.6
15.6
15.2
17.2
18.0
17.6
16.9
16.7
14.4
ND
14.5
16.2
15.2
16.8
17.3
18.5
Sulfate (dissolved)
138Q
131Q
128Q
I13Q
ND
13.2
13.3
14.0
14.2
34.7
34.6
35.5
36.2
42.8
42.7
43.1
42.4
42.6
39.9
ND
39.5
39.9
40.8
41.9
41.4
42.3
19
Table 3. Concentrations of dissolved anions and total cations in water, Naval Reactors Facility and vicinity- Continued
Sample identifier
QAS-72B
NRF-11
NRF-12
QAS-67R
NRF-12
NRF-13
QAS-70B
NRF-13
USGS 12
USGS 97
QAS-69R
USGS 97
USGS 98
QAS-71R
USGS 98
USGS 99
Date sampled m/d/y
7/28/99
11/3/99
2/4/99
2/4/99
5/5/99
7/28/99
11/3/99
2/11/99
5/5/99
5/5/99
7/28/99
11/3/99
2/11/99
5/5/99
7/28/99
11/3/99
2/9/99
5/4/99
5/4/99
7/27/99
11/2/99
2/9/99
5/4/99
7/27/99
7/27/99
1 1/2/99
2/9/99
5/4/99
Calcium (total)
.07*
73.2
77.1
78.2
79.2
76.3
76.0
71.1
74.0
.064*
78.1
73.9
56.0
58.7
.57.5
57.3
71.3
73.7
72.8
71.6
66.6
50.9
51.3
51.1
50.4
46.7
62.5
62.9
Chloride (dissolved)
ND
47. 1Q
56.0Q
55.6Q
59.1Q
53.4Q
55.9Q
69.0Q
69.6Q
ND
69.0Q
81.2Q
17.4
17.3
14.9
15.8
14.4
40.0
40.2
36.8
41.6
14.4
15.4
14.5
14.4
16.7
20.5
22.4
Magnesium (total)
.02*
23.5
23.6
24.0
24.4
23.8
24.1
20.4
20.5
.014*
24.1
21.9
17.7
18.6
18.4
18.6
23.3
24.0
23.7
23.6
23.0
19.3
19.4
19.5
19.2
18.8
21.8
21.9
Potassium(total)
ND
2.8*
2.9*
2.7*
3.1*
2.5*
2.6*
3.9*
4.1*
ND
3.9*
4.0*
1.9*
2.2*
1.7*
1.8*
1.9*
2.1*
2.2*
2.1*
1.9*
2.0*
2.3*
2.0*
1.6*
2.1*
1.6*
1.9*
Sodium (total)
ND
19.5
23.5
23.7
25.2
23.7
23.3
9.6
11.2
ND
11.9
12.3
13.3
13.4
13.3
13.1
16.9
15.8
15.3
16.6
15.7
10.1
10.2
10.7
8.8
9.1
15.4
14.9
Sulfate (dissolved)
ND
42.2
48.9Q
49.0Q
47.8Q
48.4Q
49.7
82.1
75.6Q
ND
81.0Q
86.9Q
24.3
23.2
23.9
24.0
21.4
34.4
34.6
35.4
35.6
21.6
21.3
22.1
22.0
22.6
25.2
24.9
20
Table 3. Concentrations of dissolved anions and total cations in water, Naval Reactors Facility and vicinity Continued
Sample identifier
USGS 99
USGS 102
Date sampled m/d/y
7/27/99
11/2/99
2/9/99
5/3/99
7/26/99
11/1/99
Calcium (total)
61.3
57.1
71.9
71.7
73.1
65.7
Chloride (dissolved)
20.8
24.0
36.0
39.5
36.2
41.2
Magnesium (total)
21.5
21.2
23.0
23.4
23.6
22.4
Potassium (total)
1.7*
1.6*
2.2*
2.4*
2.0*
2.4*
Sodium (total)
14.4
13.4
16.3
15.7
14.0
15.5
Sulfate (dissolved)
25.9
26.5
34.4
34.3
35.1
35.7
21
Tab
le 4
. Con
cent
ratio
ns o
f sel
ecte
d to
tal t
race
ele
men
ts in
wat
er, N
aval
Rea
ctor
s Fa
cilit
y an
d vi
cini
ty[A
naly
ses
wer
e pe
rfor
med
by
Qua
nter
ra L
abor
ator
y. A
naly
tical
res
ults
in m
icro
gram
s pe
r lite
r. Sa
mpl
e id
entif
ier:
see
figur
e 2
for l
ocat
ion
of w
ells
. QA
S in
dica
tes
wat
er-q
ualit
y-
assu
ranc
e sa
mpl
e; 7
3, s
ampl
e nu
mbe
r; B,
fie
ld b
lank
; R,
rep
licat
e. D
ate
sam
pled
: (m
/d/y
), m
onth
/day
/yea
r. A
bbre
viat
ions
: N
D, n
ot d
etec
ted;
W, P
ost d
iges
tion
spik
e re
cove
ry f
ell
betw
een
40-8
5 pe
rcen
t due
to m
atrix
inte
rfer
ence
; D
, res
ult w
as o
btai
ned
from
the
anal
ysis
of a
dilu
tion;
Q, e
leva
ted
repo
rting
lim
it be
caus
e of
larg
e an
alyt
e le
vels
. Sym
bol:
*,
estim
ated
con
cent
ratio
n]
Con
stitu
ent
Alu
min
um
Ant
imon
y
Ars
enic
Bar
ium
Ber
ylliu
m
Cad
miu
m
Chr
omiu
m
Cop
per
Iron
Lead
Man
gane
se
Mer
cury
Nic
kel
Sele
nium
Silv
er
Thal
lium
Zinc
NR
F-6
2/4/
99
60.6
*
ND
ND 68
.8
ND
ND 24
.2W
ND
486
ND 4.
6*
ND 11
.5*
ND
ND
ND
ND
NRF
-65/
3/99
31*
ND 4.
3*
71 ND
ND
30W
DQ
ND
570
ND 5.
2*
ND
15*
ND
ND
ND
ND
NR
F-6
7/26
/99
39*
ND
ND 64 ND
ND 31 ND
1,10
0 1.5*
9.3* .1
6*
10*
ND
ND 8.
6*
2.7*
NRF
-6
11/1
/99
54*
ND
ND 58 ND
ND
27D
Q
ND
150 2.
1* 1.4*
ND
15*
ND
ND
ND
ND
QA
S-73
B 11
/1/9
9
50*
ND
ND
ND
ND
ND
ND
ND
ND 2.
6*
ND
ND
ND
ND
ND
ND
ND
NR
F-7
2/4/
99
120
ND
ND 59
.6 1.1*
ND 10
.1
ND
101
ND 3.
3*
ND
ND
ND
ND
ND
ND
NR
F-7
5/3/
99
120
ND
ND 62 ND
ND 8.
5
ND
270
ND 5.
4*
ND 9.
5*
ND
ND
ND 37
NR
F-7
7/26
/99
200
ND
ND 61 ND
ND
11W ND
310
ND 10
.14*
9.3*
ND
ND
ND 9.
0*
NR
F-7
11/1
/99
560
ND
ND 69 ND
ND 13 ND
700 3.
5
24 ND 11*
ND
ND
ND
11*
Tab
le 4
. C
once
ntra
tions
of s
elec
ted
tota
l tr
ace
elem
ents
in w
ater
, Nav
al R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
Con
stit
uent
Alu
min
um
Ant
imon
y
Ars
enic
Bar
ium
Ber
ylliu
m
Cad
miu
m
Chr
omiu
m
Cop
per
Iron
Lea
d
Man
gane
se
Mer
cury
Nic
kel
Sele
nium
Silv
er
Tha
llium
Zin
c
NR
F-8
2/11
/99
ND
ND
ND
125
ND
ND 6.
0W
ND
ND
ND
ND
.18*
ND
ND
ND
ND
ND
NR
F-8
5/3/
99
27*
ND
ND
140
ND
ND 6.
2W
ND
310
ND 2.
1*
ND
ND
ND
ND
ND 3.
1*
NR
F-8
7/27
/99
37*
ND
ND
140
ND
ND 7.
8
3.3*
31* 1.
2*
ND
ND
ND
ND
ND
ND 5.
3*
NR
F-8
11/2
/99
500
ND
ND
140 1.
7*
ND 9.
5
ND
570 3.
8
9.8*
ND
ND
ND
ND
ND 3.
2*
NR
F-9
2/11
/99
ND
ND
ND
133
ND
ND 8.
2W
ND
ND
ND
ND
.16*
ND
ND
ND
ND
ND
NR
F-9
5/4/
99
29*
ND
ND
140
ND
ND 8.
5W
ND
33*
ND
ND
ND
ND
ND
ND
ND
ND
NR
F-9
7/27
/99
26*
ND
ND
140
ND
ND 12 ND
52*
ND
ND
ND
ND
ND
ND
ND
ND
NR
F-9
11/2
/99
110
ND
ND
150 1.
6*
ND 9
ND
18* 1.
7*
ND
ND
ND
ND
ND
ND
ND
QA
S-74
R
11/2
/99
110
ND
ND
150 1.
6*
ND 9.
2
ND
32* 3.
6
ND
ND
ND
ND
ND
ND 7.
9*
Tab
le 4
. C
once
ntra
tions
of s
elec
ted
tota
l tra
ce e
lem
ents
in w
ater
, Nav
al R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
Con
stitu
ent
Alu
min
um
Ant
imon
y
Ars
enic
Bar
ium
Ber
ylliu
m
Cad
miu
m
Chr
omiu
m
Cop
per
Iron
Lead
Man
gane
se
Mer
cury
Nic
kel
Sele
nium
Silv
er
Thal
lium
Zinc
NR
F-10
2/
11/9
9
ND
ND
ND
124
ND
ND 9.
6W
ND
ND
ND 3.
0* .14*
12.1
*
ND
ND
ND
ND
QA
S-68
B
2/11
/99
ND
ND
ND
ND
ND
ND 1.
1*
ND
ND
ND
ND
.21*
ND
ND
ND
ND
ND
NRF
-10
5/4/
99
110
ND
ND
140
ND
ND
11W ND
180
ND 4.
3*
ND
34*
ND
ND
ND
ND
NR
F-10
7/28
/99
64*
ND
ND
140
ND
ND
13W 1.
1*
120
ND 3.
8*
ND
24* 4.
1*
ND
ND
ND
NR
F-10
11
/2/9
9
180
ND
ND
140 1.
8*
ND 12
ND
97* 4.
4*
3.7*
ND
23*
ND
ND
ND 9.
6*
NR
F-11
2/11
/99
ND
ND
ND
138
ND
ND 13
.5W
ND
ND
ND
ND
.15*
ND
ND
ND
ND
ND
NR
F-11
5/4/
99
220
ND
ND
150
ND
ND
14W ND
200 1.
6*
3.0*
ND
ND
ND
ND
ND
ND
NR
F-11
7/28
/99
93*
ND
ND
140
ND
ND
17W 28 220 1.
6*
2.4*
ND
ND
ND
ND
ND
ND
QA
S-72
B7/
28/9
9
25*
ND
ND
ND
ND
ND 2* ND
23*
ND
ND
ND
ND
ND
ND
ND
ND
NRF
-11
11/3
/99
44*
ND
ND
150
ND
ND 15 ND
69* 2* 1* ND
ND
ND
ND 5.
2*
ND
Tab
le 4
. C
once
ntra
tions
of s
elec
ted
tota
l tr
ace
elem
ents
in w
ater
, Nav
al R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
to
Con
stit
uent
Alu
min
um
Ant
imon
y
Ars
enic
Bar
ium
Ber
ylliu
m
Cad
miu
m
Chr
omiu
m
Cop
per
Iron
Lea
d
Man
gane
se
Mer
cury
Nic
kel
Sele
nium
Silv
er
Tha
llium
Zin
c
NR
F-12
2/4/
99
70.1
*
ND
ND
175
ND
ND 14
.1W
ND
ND
ND
ND
ND 17
.3*
ND
ND
ND
ND
QA
S-67
R2/
4/99 72.7
*
ND
ND
176
ND
ND
13W ND
329
ND 4.
6*
ND 18
.6*
ND
ND
ND
ND
NR
F-12
5/5/
99
33*
ND
ND
180
ND
ND
21D
Q
ND
140
ND 1.
4*
ND
24*
ND
ND
ND 20
NR
F-12
7/28
/99
27*
ND
ND
170
ND
ND
20W ND
250 1.
6*
1.3*
ND
18*
ND
ND
ND
ND
NR
F-12
11
/3/9
9
ND
ND
ND
170
ND
ND
18W 3.
4*
83* 2.
6*
ND
ND
15*
ND
ND
ND
ND
NR
F-13
2/
11/9
9
1,68
0
ND
ND 87
.5
ND
ND
78W
DQ 4*
2,03
0
ND 37
.16*
41.8
ND
ND
ND
ND
NR
F-13
5/5/
99
2,20
0
ND
ND
110
ND
ND
74W
DQ 4.
5*
2,60
0 1.8*
67 ND 20 ND
ND
ND 9.
1*
QA
S-70
B5/
5/99
22*
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND 5*
NR
F-13
7/28
/99
3,80
0
ND
ND
110
ND
ND
49D
Q 4.6*
3,50
0 1* 58 ND
13*
ND
ND
ND 9.
1*
NR
F-13
11
/3/9
9
2,40
0
ND
ND
110
ND
ND
92D
Q 7*
2,60
0 2* 44 ND
27*
ND
ND
ND
13*
Tab
le 4
. C
once
ntra
tions
of s
elec
ted
tota
l tra
ce e
lem
ents
in w
ater
, Nav
al R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
Con
stit
uent
Alu
min
um
Ant
imon
y
Ars
enic
Bar
ium
Ber
ylliu
m
Cad
miu
m
Chr
omiu
m
Cop
per
Iron
ts>
Lead
ON
Man
gane
se
Mer
cury
Nic
kel
Sele
nium
Silv
er
Thal
lium
Zinc
USG
S 12
2/
11/9
9
ND
ND
ND
123
ND
ND 5.
1W
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
USG
S 12
5/5/
99
25*
ND
ND
130
ND
ND 5.
7
ND
86*
ND
ND
ND
ND
ND
ND
ND 2.
9*
USG
S 12
7/28
/99
15*
ND
ND
130
ND
ND 6.
5
ND
85* 1.
5*
ND
ND
ND 4.
2*
ND
ND
ND
USG
S 12
11
/3/9
9
58*
ND
ND
130
ND
ND 6.
4
ND
77* 2.
7*
1.7*
ND
ND
ND
ND
ND
10*
USG
S 97
2/
9/99
ND 3.
2*
ND
131
ND
ND 5.
4W
ND
ND
ND
ND
ND
ND
ND
ND
ND 111
USG
S 97
5/4/
99
27*
ND
ND
150
ND
ND 5.
3
ND
14* 9.
2
ND
ND
ND
ND
ND
ND
100
QA
S-69
R5/
4/99
28*
ND
ND
150
ND
ND 5.
1W
ND
22*
ND
ND
ND
ND
ND
ND
ND 96
USG
S 97
7/27
/99
24*
ND
ND
140
ND
ND 7.
2 1.0*
66* 1.
6*
ND
ND
ND
ND
ND
ND
100
USG
S 97
11
/2/9
9
110
ND
ND
150 1.
6*
ND 7.
0
ND 9.
0*
2.8*
ND
ND
ND
ND
ND
ND 98
Tab
le 4
. C
once
ntra
tions
of s
elec
ted
tota
l tr
ace
elem
ents
in w
ater
, Nav
al R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
Con
stitu
ent
Alu
min
um
Ant
imon
y
Ars
enic
Bar
ium
Ber
ylliu
m
Cad
miu
m
Chr
omiu
m
Cop
per
Iron
Lea
d
Man
gane
se
Mer
cury
Nic
kel
Sele
nium
Silv
er
Tha
llium
Zin
c
USG
S 98
2/
9/99
ND
ND
ND 55
.2
ND
ND 4.
9*
ND
ND 3.
5
ND
ND
ND
ND
ND
ND
120
USG
S 98
5/4/
99
26*
ND
ND 57 ND
ND 4.
8*W
ND
160 6.
5
1.4*
ND
ND
ND
ND
ND
180
USG
S 98
7/27
/99
21*
ND
ND 57 ND
ND 6.
5
1.0*
54* 4.
3
ND
ND
ND
ND
ND
ND
140
QA
S-71
R7/
27/9
9
17*
ND
ND 56 ND
ND 6.
2
1.4*
100 4.
4
ND
ND
ND
ND
ND
ND
140
USG
S-98
11
/2/9
9
89*
ND
ND 57
1.5*
ND 6.
3
ND
19* 6.
3
ND
ND
ND
ND
ND
ND
130
USG
S 99
2/
9/99
ND
ND
ND
101
ND
ND 5.
0W
4.0*
ND
ND
ND
ND
ND
ND
ND
ND
102
USG
S 99
5/4/
99
24*
ND
ND
110
ND
ND 4.
6*
ND
93* 1.
7*
ND
ND
ND
ND
ND
ND
120
USG
S-99
7/27
/99
18*
ND
ND
110
ND
ND 6.
2
1.1*
77* 2.
2*
ND
ND
ND
ND
ND
ND 94
USG
S 99
11
/2/9
9
110
ND
ND
110 1.
4*
ND 5.
8
ND
58* 3.
6
ND
ND
ND
ND
ND
ND 99
Tab
le 4
. C
once
ntra
tions
of s
elec
ted
tota
l tra
ce e
lem
ents
in w
ater
, Nav
al R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
Con
stitu
ent
Alu
min
um
Ant
imon
y
Ars
enic
Bar
ium
Ber
ylliu
m
Cad
miu
m
Chr
omiu
m
Cop
per
Iron
K>
Lead
00
Man
gane
se
Mer
cury
Nic
kel
Sele
nium
Silv
er
Thal
lium
Zinc
USG
S 10
2 2/
9/99 49.8
*
ND
ND
122
ND
ND 5.
6W
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
USG
S 10
25/
3/99
49*
ND
ND
130
ND
ND 7.
7W
ND
220
ND 1.
5*
ND
ND
ND
ND
ND 39
USG
S 10
27/
26/9
9
24*
ND
ND
130
ND
ND 5.
0
ND
88* 2.
2*
ND
.16*
ND
ND
ND
ND 9.
1*
USG
S 10
2 11
/1/9
9
75*
ND
ND
130
ND
ND 7.
2
ND
57* 1.
8*
ND
ND
ND
ND
ND
ND
ND
Table 5. Concentrations of dissolved and total nutrients, total organic carbon, and total organic halogens in water,Naval Reactors Facility and vicinity
[Analyses were performed by Quanterra Laboratory. Analytical results in milligrams per liter. Sample identifier: see figure 2 for location of wells. QAS indicates water-quality-assurance sample; 73, sample number; B, field blank; R, replicate. Date sampled: (m/d/y), month/day/year. Abbreviations: ND, analysis not detected; Q, reporting limit is elevated because of large analyte values. Symbol: *, indicates estimated result]
Sample identifier
NRF-6
QAS-73B
NRF-7
NRF-8
NRF-9
QAS-74R
NRF-10
QAS-68B
NRF-10
Date sampled m/d/y
2/4/99
5/3/99
7/26/99
1 1/1/99
11/1/99
2/4/99
5/3/99
7/26/99
11/1/99
2/11/99
5/4/99
7/27/99
11/2/99
2/1 1/99
5/4/99
7/27/99
11/2/99
11/2/99
2/11/99
2/11/99
5/4/99
7/28/99
11/2/99
Kjeldahl nitrogen (total)
0.088*
ND
.18*
ND
ND
.11*
ND
.12*
ND
.1*
.34*
.11*
ND
ND
ND
.12*
ND
ND
.091*
.36*
ND
ND
ND
Nitrite as nitrogen
(dissolved)
ND
.007*
ND
ND
ND
ND
.33
ND
ND
.002*
.011
ND
ND
.002*
ND
ND
ND
ND
.002*
.003*
ND
ND
ND
Nitrite plus nitrate as nitrogen (total)
1.7
.47
1.8
1.8
ND
.53
.66
.47
.47
2.2Q
2.2
2.3
2.0
2.0Q
2.3
2.3
2.2
2.1
1.8Q
ND
1.9
2.1
1.8
Phosphorus as
phosphorus (total)
0.093
ND
.045*
.035*
.018*
.039*
ND
.031*
.04*
.047*
ND
.035*
.057
.057
ND
.031*
.041*
.029*
.058
.035*
.084
.017*
.043*
Total organic carbon
ND
.53*
1.0
ND
ND
ND
ND
ND
ND
ND
.37*
.51*
ND
ND
.85*
.49*
ND
.26*
ND
ND
.86*
.95*
ND
Total organic halogens
0.014*
.012*
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
.010*
.004*
ND
.004*
ND
ND
ND
.004*
ND
ND
29
Table 5. Concentrations of dissolved and total nutrients, total organic carbon, and total organic halogens in water, Naval Reactors Facility and vicinity Continued
Sample identifier
NRF-11
QAS-72B
NRF-11
NRF-12
QAS-67R
NRF-12
NRF-13
QAS-70B
NRF-13
USGS 12
USGS 97
QAS-69R
USGS 97
Date sampled m/d/y
2/11/99
5/4/99
7/28/99
7/28/99
11/3/99
2/4/99
2/4/99
5/5/99
7/28/99
11/3/99
2/11/99
5/5/99
5/5/99
7/28/99
11/3/99
2/11/99
5/5/99
7/28/99
11/3/99
2/9/99
5/4/99
5/4/99
7/27/99
11/2/99
Kjeldahl nitrogen (total)
.079*
ND
.41*
.22*
ND
ND
.095*
ND
ND
.099*
.2*
.24*
ND
ND
ND
ND
.33*
.20*
.12*
.18*
ND
ND
ND
ND
Nitrite as nitrogen
(dissolved)
.013
ND
ND
ND
ND
ND
ND
ND
ND
ND
.007*
ND
ND
ND
ND
.003*
ND
.008*
ND
ND
ND
ND
ND
ND
Nitrite plus nitrate as nitrogen (total)
2.2Q
2.1
2.3
ND
2.1
2.1
2.3
2.1
2.1
2.0
.91
.80
ND
.87
.84
1.1
1.0
.95
.82
2.4
2.2
2.3
2.3
2.2
Phosphorus as
phosphorus (total)
.05
ND
.053
.045*
ND
.035*
.044*
ND
.05*
.034*
.084
.12
ND
.13
.085
.048*
ND
.053
.041*
.049*
ND
ND
.033*
.032*
Total organic carbon
ND
.98*
.48*
ND
ND
ND
.59*
.54*
.38*
ND
ND
.31*
ND
.43*
ND
ND
ND
.64*
ND
ND
.76*
.82*
.31*
ND
Total organic halogens
.012*
ND
ND
ND
ND
.008*
ND
.005*
ND
ND
.013*
.008*
ND
ND
.006*
ND
ND
ND
ND
ND
ND
.003*
ND
ND
30
Table 5. Concentrations of dissolved and total nutrients, total organic carbon, and total organic halogens in water, Naval Reactors Facility and vicinity Continued
Sample identifier
USGS 98
QAS-71R
USGS 98
USGS 99
USGS 102
Date sampled m/d/y
2/9/99
5/4/99
7/27/99
7/27/99
11/2/99
2/9/99
5/4/99
7/27/99
1 1/2/99
2/9/99
5/3/99
7/26/99
11/1/99
Kjcldahl nitrogen (total)
ND
ND
.072*
.088*
ND
ND
ND
.42*
ND
ND
.076*
.15*
.89
Nitrite as nitrogen
(dissolved)
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
.012
ND
ND
Nitrite plus nitrate as nitrogen (total)
.96
1.2
1.2
1.2
1.1
1.5
1.7
1.7
1.6
2.4
1.9
2.1
2.1
Phosphorus as
phosphorus (total)
.038*
ND
.036*
.028*
.027*
.055
ND
.026*
.044*
.053
ND
.03*
.027*
Total organic carbon
ND
.54*
.65*
.57*
ND
ND
.86*
.89*
ND
ND
.36*
.48*
.57*
Total organic halogens
ND
.004*
ND
ND
.012*
ND
ND
ND
ND
.0091*
.003*
ND
ND
31
Tab
le 6
. C
once
ntra
tions
of g
ross
alp
ha-p
artic
le r
adio
activ
ity, g
ross
bet
a-pa
rticl
e ra
dioa
ctiv
ity, s
tront
ium
-90,
triti
um, a
nd s
elec
ted
isot
opes
fro
m g
amm
asp
ectro
scop
y in
wat
er, N
aval
Rea
ctor
s Fa
cilit
y an
d vi
cini
ty[A
naly
ses
wer
e pe
rfor
med
by
the
Qua
nter
ra L
abor
ator
y us
ing
a re
sidu
e pr
oced
ure
for g
ross
alp
ha-
and
beta
-par
ticle
radi
oact
ivity
, che
mic
al s
epar
atio
n an
d be
ta c
ount
ing
for
stro
ntiu
m-9
0, a
nd g
amm
a sp
ectr
osco
py f
or g
amm
a em
mis
sion
s. T
ritiu
m a
naly
ses
wer
e pe
rfor
med
by
the
Uni
vers
ity o
f Geo
rgia
usi
ng e
lect
roly
tic e
nric
hmen
t and
liqu
id
scin
tilla
tion.
Ana
lytic
al r
esul
ts a
nd u
ncer
tain
ties
for
exa
mpl
e, 3
.8±
0.9
in p
icoc
urie
s pe
r lite
r. A
naly
tical
unc
erta
intie
s ar
e re
porte
d as
Is.
Con
cent
ratio
ns th
at m
eet o
r exc
eed
the
repo
rting
leve
l of 3
tim
es th
e Is
val
ue a
re s
how
n in
bol
dfac
e ty
pe. S
ampl
e id
entif
ier:
see
figur
e 2
for l
ocat
ion
of w
ells
. QA
S in
dica
tes
wat
er-q
ualit
y-as
sura
nce
sam
ple;
73,
sam
ple
num
ber;
B, f
ield
bla
nk; R
, rep
licat
e. D
ate
sam
pled
: (m
/d/y
), m
onth
/day
/yea
r. Is
otop
es:
isot
ope
repo
rted
in p
aren
thes
is a
fter v
alue
. Sym
bols
: #, v
alue
is q
uest
iona
ble,
and
sam
ple
lost
whi
le re
runn
ing;
<, l
ess
than
; Co,
cob
alt;
Cs,
ces
ium
; K
, pot
assi
um; R
a, r
adiu
m; T
h, th
oriu
m; U
, ura
nium
; Tl,
thal
lium
; ±, p
lus
or m
inus
]
Sam
ple
iden
tifie
rD
ate
sam
pled
(m
/d/y
)
Gro
ss a
lpha
- pa
rtic
lera
dioa
ctiv
ity,
as
Th-
230
Gro
ss b
eta-
pa
rtic
lera
dioa
ctiv
ity, a
s C
s-13
7St
ront
ium
-90
Tri
tium
Isot
opes
NR
F-6
NR
F-8
2/4/
993.
8±0.
95.
1±0.
80.
01 ±
0.12
102±
10
0.65
±0.3
8(C
o-60
); -0
.14±
0.36
(Cs-
137)
; -17
.2±1
4(K
-40)
; -3
.8±1
.5(R
a-22
6);
26±2
.3(R
a-22
8);
l.l±2
.7(T
h-22
8);
0.86
±1.6
(U-2
35);
-1.5
±1.3
(U-2
38)
QA
S-73
B
NR
F-7
5/3/
99
7/26
/99
11/1
/99
11/1
/99
2/4/
99
2.4±
1.0
2.7±
1.4
8.0±
2.4
.09±
0.1
1.8±
0.28
7.6±
1.0
.34±
0.75
4.9±
0.95
-.07±
0.14
4.1±
0.34
.12±
0.26
-.03+
0.08
.26±
0.14
.08±
0.12
.11±
0.11
103±
13
84±5
.9
62±4
.5
14±1
.5
16±1
.4
-.25±
0.56
(Cs-
137)
-.18±
0.33
(Cs-
137)
.27±
0.36
(Cs-
137)
.06±
0.35
(Cs-
137)
.67±
0.38
(Co-
60);-
.-
5/3/
99
7/26
/99
11/1
/99
2/1
1/99
5/3/
99
7/27
/99
11/2
/99
1.7±
0.5
1.7±
0.5
1.1 ±
0.44
2.6±
0.55
1.4±
0.65
3.0±
1.0
3.8±
1.2
4.2±
0.44
1.7±
0.32
4.6±
0.55
2.6±
0.48
4.0±
0.50
3.1±
0.55
3.5±
0.7
.02±
0.09
-.001
±0.
08
.26±
0.14
.22+
0.12
.06±
0.1
.2±0
.12
.009
±0.1
1
38±3
.6
8.7±
1.1
<3.5
7 63 ±6
.1
94±1
0
65±4
.6
47±3
.4
-1.0
±1.4
(Ra-
226)
;.12±
2.2(
Ra-
228)
;-1.
5±1.
8(T
h-22
8);
-4.1
±2.2
(U-2
35);
-1.3
±1.0
(U-2
38)
.10±
0.32
(Cs-
137)
.25±
0.34
(Cs-
137)
-.006
±0.3
5(C
s-13
7)
.85±
0.36
(Cs-
137)
.03±
0.34
(Cs-
137)
.08±
0.38
(Cs-
137)
.14±
0.36
(Cs-
137)
Tab
le 6
. C
once
ntra
tions
of g
ross
alp
ha-p
artic
le r
adio
activ
ity, g
ross
bet
a-pa
rtic
le r
adio
activ
ity, s
tron
tium
-90,
tri
tium
, an
d se
lect
ed i
soto
pes
from
gam
ma
spec
tros
copy
in
wat
er, N
aval
Rea
ctor
s Fa
cilit
y an
d vi
cini
ty C
onti
nued
Sam
ple
iden
tifi
er
NR
F-9
QA
S-74
R
NR
F-10
QA
S-68
B
NR
F-10
NR
F-11
QA
S-72
B
NR
F-11
NR
F-12
Dat
e sa
mpl
ed
(m/d
/y)
2/11
/99
5/4/
99
7/27
/99
11/2
/99
11/2
/99
2/11
/99
2/11
/99
5/4/
99
7/28
/99
11/2
/99
2/11
/99
5/4/
99
7/28
/99
7/28
/99
11/3
/99
2/4/
99
Gro
ss a
lpha
- pa
rtic
le
radi
oact
ivit
y, a
s T
h-23
0
4.3±
0.8
2.6±
0.95
5.2±
1.4
3.3±
0.8
3.6±
1.2
2.7±
0.55
0±0.
03
3.8±
1.1
2.9±
0.9
2.1
±0.9
5
4.2±
0.75
2.5±
0.9
3.1±
0.95
-.05±
0.02
4.4 ±
1.0
4.4±
0.75
Gro
ss b
eta-
pa
rtic
le
radi
oact
ivity
, as
Cs-
137
5.3±
0.65
3.5±
0.5
3.2±
0.55
5.0±
0.75
4.2±
0.7
3.7±
0.6
.15±
0.16
3.8±
0.45
3.9±
0.55
4.0±
0.7
3.6±
0.6
4.7±
0.55
4.3±
0.6
-.21±
0.14
4.8±
0.75
4.2±
0.45
Str
onti
um-9
0
.04±
0.11
.04±
0.1
.12±
0.12
-.009
±0.1
2
.23±
0.13
.26±
0.12
.001
±0.
1
.02±
0.1
.15±
0.10
.01±
0.12
.08±
0.12
.09±
0.11
.13±
0.10
.11±
0.08
.18±
0.14
.49±
0.16
Tri
tium
102±
10
125±
15
97±6
.7
80±5
.5
77±5
.4
140±
15
19±1
.7
166±
23
116±
8.1
108±
7.4
120±
13
200±
28
124±
8.6
23±1
.9
92±6
.3
76±7
.2
Isot
opes
-.ll
±0.
36(C
s-13
7)
-.24±
0.32
(Cs-
137)
.59±
0.36
(Cs-
137)
-.36±
0.36
(Cs-
137)
; 9.
0±1.
6(T
h-22
8);
3.1±
0.55
(T1-
208)
-.44±
0.34
(Cs-
137)
-.42±
0.35
(Cs-
137)
.04±
0.33
(Cs-
137)
.32±
0.32
(Cs-
137)
.90±
0.34
(Cs-
137)
-.07±
0.36
(Cs-
137)
-.32±
0.37
(Cs-
137)
.31±
0.35
(Cs-
137)
.30±
0.36
(Cs-
137)
-.08±
0.32
(Cs-
137)
.34±
0.33
(Cs-
137)
-.2±0
.37(
Co-
60);
-.1
6±0.
36(C
s-13
7);
5.9±
11(K
-40)
;
QA
S-67
R2/
4/99
3.0±
0.5
3.7±
0.44
.26+
0.14
4.9±
1.3(
Ra-
226)
; 5.0
±1.4
(Ra-
228)
; 5.
9±1.
8(T
h-22
8);
1.9±
1.6(
U-2
35);
1.8
±0.7
(U-2
38)
89±8
.8
1.8±
0.44
(Co-
60);
.58
±0.3
8(C
s-13
7);
-30±
12(K
-40)
;-6
.2±1
.6(R
a-22
6);
7.3±
1.6(
Ra-
228)
; 2.
5±1.
2(T
h-22
8);
1.3±
1.9(
U-2
35);
-.6
5±1.
2(U
-238
)
Tab
le 6
. C
once
ntra
tions
of g
ross
alp
ha-p
artic
le r
adio
activ
ity, g
ross
bet
a-pa
rtic
le r
adio
activ
ity,
stro
ntiu
m-9
0, t
ritiu
m,
and
sele
cted
iso
tope
s fr
om g
amm
a sp
ectr
osco
py in
wat
er, N
aval
Rea
ctor
s Fa
cilit
y an
d vi
cini
ty C
onti
nued
Sam
ple
iden
tifi
er
NR
F-12
NR
F-13
QA
S-70
B
NR
F-13
USG
S 12
USG
S 97
QA
S-69
R
USG
S 97
USG
S 98
Dat
e sa
mpl
ed
(m/d
/y)
5/5/
99
7/28
/99
11/3
/99
2/11
/99
5/5/
99
5/5/
99
7/28
/99
11/3
/99
2/11
/99
5/5/
99
7/28
/99
11/3
/99
2/9/
99
5/4/
99
5/4/
99
7/27
/99
11/2
/99
2/9/
99
5/4/
99
7/27
/99
Gro
ss a
lpha-
pa
rtic
le
radi
oact
ivit
y, a
s T
h-23
0
1.4±
0.8
1.6±
0.8
-.34
±0.
12
3.9±
0.8
1.3±
0.75
-.05
±0.0
2
3.7±
1.2
3.0±
1.2
3.4±
0.6
3.8±
1.0
1.7±
0.65
2.1
±0.
8
2.8±
0.6
4.0±
1.1
2.3±
0.85
3.1±
0.95
1.7±
0.85
2.3±
0.48
2.2±
0.7
2.1±
0.7
Gro
ss b
eta-
pa
rtic
le
radi
oact
ivity
, as
Cs-
137
5.0±
0.6
3.4±
0.6
3.8±
0.65
4.7±
0.5
5.2±
0.6
-.11±
0.16
4.7±
0.65
6.1±
0.8
3.0±
0.48
2.2±
0.38
3.3±
0.46
3.4±
0.5
3.5±
0.6
4.1±
0.5
2.6±
0.42
4.0±
0.55
2.5±
0.55
2.5±
0.45
3.4±
0.41
1.8±
0.39
Str
onti
um-9
0
.08±
0.10
.11±
0.1
.21±
0.13
.01±
0.10
-.02±
0.1
.02±
0.1
.03±
0.10
-.13±
0.10
.16±
0.12
.05±
0.13
.17±
0.12
-.009
±0.1
.22±
0.12
.03±
0.1
-.06±
0.95
.03±
0.1
-.04±
0.1
.17±
0.11
.06±
0.11
.09±
0.85
Tri
tium
67±
6.9
69±4
.9
56±4
.0
59±5
.4
59±6
.5
51 ±
4. 8
49±3
.5
38±2
.8
82±8
.2
220±
26#
75±5
.3
62±4
.3
64±6
.2
80±9
.4
74±8
.4
56±4
.1
44±3
.2
27±2
.4
29±2
.9
27±2
.1
Isot
opes
-.007
±0.3
4(C
s-13
7)
.14±
0.36
(Cs-
137)
.90±
0.36
(Cs-
137)
.04±
0.42
(Cs-
137)
.21±
0.32
(Cs-
137)
-.28±
0.34
(Cs-
137)
-.08±
0.34
(Cs-
137)
.44±
0.4(
Cs-
137)
.29±
0.35
(Cs-
137)
.10±
0.34
(Cs-
137)
.01±
0.35
(Cs-
137)
.44±
0.34
(Cs-
137)
.04±
0.36
(Cs-
137)
.24±
0.32
(Cs-
137)
.37±
0.36
(Cs-
137)
-.36
±0.3
6(C
s-l3
7)
.44±
0.40
(Cs-
137)
.07±
0.38
(Cs-
137)
; 4.
3±1.
0(U
-238
)
-.44±
0.40
(Cs-
137)
-.10±
0.36
(Cs-
137)
Tab
le 6
. C
once
ntra
tions
of
gros
s al
pha-
part
icle
rad
ioac
tivity
, gro
ss b
eta-
part
icle
rad
ioac
tivity
, str
ontiu
m-9
0, t
ritiu
m,
and
sele
cted
iso
tope
s fr
om g
amm
a sp
ectr
osco
py in
wat
er,
Nav
al R
eact
ors
Faci
lity
and
vici
nity
Con
tinu
ed
Sam
ple
iden
tifie
r
QA
S-7
1R
USG
S 98
USG
S 99
USG
S 10
2
Dat
e sa
mpl
ed(m
/d/y
)
7/27
/99
11/2
/99
2/9/
99
5/4/
99
7/27
/99
11/2
/99
2/9/
99
5/3/
99
7/26
/99
11/1
/99
Gro
ss a
lpha
- pa
rtic
le
radi
oact
ivity
, as
Th-
230
1.3±
0.55
1.2±
0.6
2.6±
0.55
3.0±
0.9
3.2±
0.9
4.0±
1.2
1.8 ±
0.5
2.3±
0.8
3.7±
1.0
3.4±
1.1
Gro
ss b
eta-
pa
rtic
le
radi
oact
ivity
, as
Cs-
137
2.8±
0.46
2.9±
0.48
2.4±
0.41
2.7±
0.42
2.8±
0.5
3.0±
0.6
3.8±
0.6
4.0±
0.49
2.2±
0.5
2.4±
0.49
Stro
ntiu
m-9
0
.28±
0.15
.03±
0.18
-.04±
0.1
.17±
0.11
-.08±
0.1
-.05±
0.1
.15±
0.12
.24±
0.12
.08±
0.14
-.007
±0.1
2
Tri
tium
34±
2.7
11±1
.1
38±3
.5
40±4
.2
37±2
.7
23±1
.7
66±6
.4
95±1
1
60±4
.3
47±3
.3
Isot
opes
.16±
0.36
(Cs-
137)
-.17±
0.36
(Cs-
137)
-.61±
0.33
(Cs-
137)
.75±
0.34
(Cs-
137)
-.53
±0.3
5(C
s-13
7)
.41±
0.35
(Cs-
137)
.37±
0.36
(Cs-
137)
-.52±
0.38
(Cs-
137)
.34±
0.36
(Cs-
137)
.04±
0.38
(Cs-
137)
Table 7. Regulatory volatile organic compounds for which water samples were analyzed[Analyses were performed by the Quanterra Laboratory using U.S. Environmental Protection Agency method 524.2. Reportinglimits are in micrograms per liter]
Compound
BenzeneBromobenzeneBromochloromethaneBromodichloromethaneBromoformBromomethanen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCarbon tetrachlorideChlorobenzeneChloroethaneChloroformChloromethane2-Chlorotoluene4-ChlorotolueneDibromochloromethane1 ,2-Dibromo-3-chloropropane (DBCP)1,2-Dibromoethane (EDB)Dibromomethane1 ,2-Dichlorobenzene1 ,3-Dichlorobenzene1 ,4-DichlorobenzeneDichlorodifluoromethane1,1-Dichloroethane1 ,2-Dichloroethane1 , 1 -Dichloroethylhenecis- 1 ,2-Dichloroethylene
trans-1 ,2-DichloroethyleneDichloromethane
Reporting limit
0.5
.2
.2
.1
.1
.5
.2
.2
.2
.1
.2
.5
.1
.5
.2
.2
.1
.2
.1
.1
.1
.1
.1
.5
.1
.1
.2
.1
.1
.5
Compound
1 ,2-Dichloropropane
1 ,3-Dichloropropane2,2-Dichloropropane
1 , 1 -Dichloropropylene
cis- 1 ,3-Dichloropropylenetrans- 1 ,3-Dichloropropylene
Ethylbenzene
Hexachlorobutadiene
Isopropylbenzene
4-Isopropyltoluene
Methyl-t-butyl ether (MTBE)
Naphthalene
n-Propyl benzene
Styrene
1,1,1 ,2-Tetrachloroethane
1 , 1 ,2,2-Tetrachloroethane
Tetrachloroethylene
Toluene
1 ,2,3-Trichlorobenzene
1 ,2,4-Trichlorobenzene
1,1,1 -Trichloroethane
1,1,2-TrichIoroethane
Trichloroethylene
Trichlorofluoromethane
1 ,2,3,-Trichloropropane1 ,2,4-Trimethylbenzene
1 ,3,5-Trimethylbenzene
Vinyl chloride
Xylenes (total)
Reporting limit
0.1
.1
.5
.1
.1
.1
.1
.2
.1
.1
.5
.2
.1
.2
.1
.1
.2
.5
.2
.2
.1
.1
.1
.5
.2
.1
.1
.2
.2
36
Table 8. Base/neutral organic compounds for which water samples were analyzed[Analyses were performed by the Quanterra Laboratory using U.S. Environmental Protection Agency method 525.2. Reportinglimits are in micrograms per liter]
_________ Compound ___________ Reporting limit ___________ Compound ___________ Reporting limitAlachlor EndrinAldrin .1 Heptachlor .04Atrazine .1 Heptachlor epoxide .02Benzo [a]pyrene .02 Methoxychlor . 1gamma-BHC (Lindane) .02 Metolachlor . 1Butachlor .1 Metribuzin .1Dieldrin .1 Propachlor .1Di (2-ethylhexyl) adipate .6 Simazine .07Di(2-ethylhexyl) phthalate .6
37
