United States
Environmental
Protection
Agency
Office of Water Office of Solid Waste EPA
Regulations and and Emergency 530-SW-87-005
Standards (WH-552) Response
Washington, D.C. W5!h,lPflton' D-c- A \
2Q460 20460M g in
TECHNICAL REPORT
EXPLORATION, DEVELOPMENT, AND PRODUCTION
CRUDE OIL AND NATURAL GAS
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4 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, D.C. 20460
OFFICE OF
SOLID WASTE AND EMERGENCY RESPONSE
M*C Lou W. Tilley
-•'"EPA Region V Library
230 South Dearborn Street
Chicago, Illinois 60604
Dear Mar. Tilley:
r
Section 8002 (m) of the Resource Conservation and Recovery
Act (RCRA) requires the^Environmental Protection Agency (EPA) to
study wastes from the exploration, development and production of
crude oil, natural gas /and geothermal energy) Section 3001 (b)
exempts these wastes from regulation as hazardous waste
until EPA: (1) produces the Report to Congress required by
Section 8002 (m); (2) provides opportunity for public comment
and hearing(s); and (3) makes a regulatory determination. Any
resulting regulations must be authorized by Act of Congress.
The Report is to be submitted to Congress by August 31, 1987.
In the interim, EPA has prepared the enclosed Technical
Report as a second step toward producing the Report to Congress.
The first Technical Report, which was released October 31,
1986, contained methodologies for data collection and analysis.
The enclosed second Technical Report describes the analytical
results of EPA ' s field sampling program.
xC'-e-<. -i> --£.,. \ - K-
If you have any questions, please contact Susan de Nagy,
(202) 382-7131 or Bob Hall, (202) 475-7415. ^
Sincerely,
Marcia E. Williams
Director
Office of Solid Waste
Enclosure
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TECHNICAL REPORT
EXPLORATION, DEVELOPMENT, AND PRODUCTION OF
CRUDE OIL AND NATURAL GAS
FIELD SAMPLING AND ANALYSIS REPORT
U.S. Environmental Protection Agency
401 M Street, SW
Washington, DC 20460
January 31, 1987
U S Environmental Protection Agency
Region 5, Library (PL-12J)
77 West Jackson Boulevard, Uth
Chicago.lt 60604-3590
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DISCLAIMER
Mention of trade names or commercial products does not
constitute EPA endorsement or recommendation for use.
11
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TABLE OF CONTENTS
DISCLAIMER "
LIST OF FIGURES iv
LIST OF TABLES v
EXECUTIVE SUMMARY 1
INTRODUCTION • 9
Overview 9
Regulatory Background 10
Project Objectives 15
PROJECT DESCRIPTION 17
Project Management 17
Sampling Strategy 17
Selection of Analytes 26
Chemical Analyses 32
Data Collection and Analysis 41
QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC) 49
Project Organization and Objectives 49
Sampling Quality Assurance/Quality Control .... 54
Analytical Quality Assurance/Quality Control ... 56
RESULTS AND CONCLUSIONS 65
Statistical Analysis 65
Statements of Data Quality for Samples 96
Statements of Data Quality for Laboratories .... 104
Frequency of Occurrence of Pollutants 104
Comparison with Results from the "Offshore Oil and
Gas Report" 113
GLOSSARY AND ABBREVIATIONS 119
APPENDICES
A - Analytical Results
B - Sampling Strategy
C - Sampling Reports
D - Analytical Methods
E - Role and Function of the EPA Sample Control
Center
F - Onshore Oil and Gas List of Analytes
G - Sampling Plan and Sampling Quality
Assurance/Quality Control Plan
111
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LIST OF FIGURES
Figure Page
1 Project Management Organization 18
2 Site Selection Zones 21
3 Example of Process Used for Selection of
States Within Zones ..... 23
4 QA/QC Management Organization 50
IV
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LIST OF TABLES
Table Page
1 Selected Significant Pollutants Detected in Central
Treatment Effluents 3
2 Selected Significant Pollutants Detected in
Drilling Pits 4
3 Selected Significant Pollutants Detected in
Production Endpoints 5
4 Distribution of Types of Sample Sites 20
5 Distribution of Probability Sites and Specifically-
Selected Sites Among Zones 25
6 Itinerary of Sampling Activities 27
7 Summary of Analytes 31
8 List of Analytes, Matrices, Fractions, and Methods
for the Exploration, Development, and Production
of Crude Oil and Natural Gas Field Sampling and
Analysis Project 33
9 Number of Liquid Samples Analyzed 43
10 Number of Solid Samples Analyzed 44
11 Database Variables and Values 47
12 Data Quality Objectives for the Exploration,
Development, and Production of Crude Oil and
Natural Gas Field Sampling and Analysis Project . . 52
13 EPA System Audits of Field Sampling Activities . . 57
14 Summary of Performance and System Audits 63
15 Summary Statistics for Field SAmpling And Analysis
Report Exploration, Development, and Production of
Crude Oil and Natural Gas 66
16 Statement of Data Quality (Data Quality Indicators)
For Samples 97
17 Statement of Data Quality (Data Quality Indicators)
For Laboratories) 105
18 Comparison of Analytes Detected in the "30 Platform
Study" and in This Project 115
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VI
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EXECUTIVE SUMMARY
The U.S. Environmental Protection Agency (EPA) regulates or
makes determinations as to whether to regulate the oil and gas
extraction industry under several major environmental statutes.
These statutes include the Clean Water Act, the Safe Drinking
Water Act, and the Resource Conservation and Recovery Act. This
report fulfills some of the requirements mandated by these acts.
This technical report presents the findings of the field
sampling and analysis project conducted on wastes associated with
exploration, development, and production activities of crude oil
and natural gas (the "Project"). A summary of the analytical
data is presented. Appendices to this report present the
analytical results, sampling strategy, sampling reports,
analytical methods, role and function of the Sample Control
Center, list of analytes, and the sampling plan and sampling
quality assurance/quality control plan.
The sampling program was designed to develop information
about wastes from four types of sites: drill sites, production
sites, centralized pits, and centralized treatment facilities.
Primarily, EPA sampled drilling wastes and produced water. EPA
also sampled tank bottoms and several commingled oil and gas
extraction industry wastes disposed of via centralized pits or
centralized treatment facilities. In total, 101 samples were
collected; from this total, 42 were classified as sludges and 59
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were classified as liquids. Classification of samples was
determined by sampling location and/or the condition of the
sample (e.g., solids content of the sample).
Nearly all samples were analyzed for 229 organic compounds,
68 metals, and 22 conventional analytes (e.g., ammonia, chloride,
TSS, and BODs). In addition, approximately half of the sludge
samples were leached using EPA's Toxicity Characteristic Leaching
Procedure (TCLP). The leachate extracts from this procedure were
tested for a subset of organics and metals. On selected samples,
such as those collected from centralized pits and centralized
treatment facilities, EPA analyzed for 136 chlorinated dioxins
and furans, and 79 pesticides and herbicides.
Analytical results and quality assurance data were reported
by the laboratories to EPA on magnetic tape or disk and in hard
copy form. After data validation and quality assurance, all data
were entered into the IBM mainframe at EPA's National Computer
Center (NCC). Summary statistics were computed on both the
analytical and quality assurance results.
Tables 1-3 summarize selective pollutants detected in the
effluents from centralized treatment facilities, in drilling
pits, and in production effluents. Pollutants selected are those
which occur most frequently, have the highest concentration, or
were unanticipated in samples from this industry. A complete
summary of all pollutants detected, in all types of samples
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analyzed, is given in the RESULTS AND CONCLUSIONS section of this
report.
The data have been weighted by production volumes and,
therefore, represent EPA's best estimate of average, nationwide
pollutant concentrations in this industry. These data show that
the highest frequencies of occurrences and highest average
concentrations are for pollutants normally associated with oil
and gas exploration, based on the technical literature and other
EPA studies.
The Agency is now in the process of evaluating and
interpreting the analytical data; therefore, this report draws no
conclusions or inferences from the data compiled at this point.
Interpretations and findings derived from the data will be
contained in future reports that will be available for public
comment.
Additional field sampling data may be collected by the
Agency in the future if EPA determines that more field work is
appropriate and necessary. EPA is expecting to receive similar
analytical data from the American Petroleum Institute's (API's)
concurrent field sampling program. The API data, along with any
other data submitted to the Agency, will be evaluated by the
Agency to determine appropriateness for inclusion in the Report
to Congress. If the Agency decides to include such data, they
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will be available for public comment when the Report is
published.
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00
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INTRODUCTION
Overview
The U.S. Environmental Protection Agency (EPA) regulates or
makes determinations as to whether to regulate the oil and gas
extraction industry under several major environmental statutes.
These statutes include the Clean Water Act (i.e., appropriate
effluent limitations guidelines), the Safe Drinking Water Act
(i.e., the underground injection control program), and the
Resource Conservation and Recovery Act (i.e., the regulatory
determination under RCRA Section 3001(b)(2)(B), which uses
information from the study under Section 8002(m)).
The purpose of this technical report is to present the
findings of the field sampling and analysis project conducted on
wastes associated with exploration, development, and production
activities of crude oil and natural gas. This report presents
the analytical results, sampling strategy, sampling reports,
analytical methods, role and function of the Sample Control
Center, list of analytes, and the sampling plan and sampling
quality assurance quality control plan.
This report is a summary document that gives an overview of
the project and summarizes the analytical results and the quality
control/quality assurance results. It is supported by seven
appendices. Two of these appendices give detailed listings of
the analytes tested for and the analytical results; the remaining
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appendices give the Sampling Strategy, the Sampling Plan and
Sampling Quality Assurance/Quality Control Plan, the Sampling
Reports, the Analytical Methods, and the role and function of the
EPA Sample Control Center.
*
The completion of this technical report fulfills an
obligation in the settlement agreement of Alaska Center for the
Environment et al. v. EPA [Civil Action No. A89-471 (D. Alaska)].
Regulatory Background
Resource Conservation and Recovery Act
The Resource Conservation and Recovery Act (RCRA)
establishes a comprehensive scheme regulating the management of
solid wastes. Some solid wastes are classified as hazardous
under RCRA Subtitle C and are therefore subject to more stringent
requirements than other solid wastes, i.e., regulations governing
generation, transportation, treatment, storage, and disposal.
However, the 1980 amendments to RCRA excluded several
types of solid wastes from regulation as hazardous wastes until
EPA has submitted certain studies to Congress and made certain
regulatory determinations [Solid Waste Disposal Act Amendments of
1980, Pub. L. No. 94-482, Section 29, 94 Stat. 2349]. One set of
waste sources subject to this exclusion is "drilling fluids,
produced waters, and other wastes associated with the
exploration, development, or production of crude oil or natural
gas or geothermal energy" [RCRA Section 3001(b)(2)(A)].
10
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Under the 1980 amendments, even if these solid wastes
would otherwise be considered hazardous wastes under RCRA (either
"listed" or having hazardous waste characteristics), they cannot
be regulated as hazardous wastes until EPA has completed the
studies required under RCRA Section 8002(m), issued the requisite
Report to Congress, conducted public hearings, made
recommendations to promulgate standards to Congress, and
promulgated such regulations which only take effect after
authorization by Congress.
Pursuant to Section 3001(a) and Section 3001(b) of the
RCRA regulations, solid wastes can be classified as hazardous in
two ways. First, EPA can determine that a particular type or
category of solid wastes is hazardous and should be included on a
list of categorically hazardous wastes [40 CFR Section 261.11,
261.30-261.33 (1984)]; the lists under 261.33 were updated in
1986 [52 FR 28296]. Second, if a solid waste exhibits one of
four characteristics (ignitability, corrosivity, reactivity, or
extraction-procedure toxicity), it is considered hazardous [40
CFR Section 261.10, 261.20 to 261.24 (1984)].
Clean Water Act
The Federal Water Pollution Control Act Amendments of
1972 established a comprehensive program to "restore and maintain
the chemical, physical, and biological integrity of the Nation's
waters." Section 101(a) of the Act declares that it is a
11
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national goal to eliminate "the discharges of pollutants into the
navigable waters." By July 1, 1977, existing industrial
dischargers were required to achieve "effluent limitations
requiring the application of the best practicable control
technology currently available" (BPTCA), as specified in Section
301(b)(1)(A). By July 1, 1983, these dischargers were required
to achieve "effluent limitations requiring the application of the
best available technology economically achievable (BAT), which
will result in reasonable further progress toward the national
goal of eliminating the discharge of pollutants," as specified in
Section 301(b)(2)(A). New industrial direct dischargers were
required to comply with new source performance standards (NSPS),
as specified in Section 306, based on best available demonstrated
technology. New and existing dischargers to publicly owned
treatment works (POTWs) were subject to pretreatment standards
under Sections 307(b) and Section 307(c). While the requirements
for direct dischargers were to be incorporated into National
Pollutant Discharge Elimination System (NPDES) permits issued
under Section 402 of the Act, pretreatment standards were made
enforceable directly against dischargers to POTWs (indirect
dischargers).
Although Section 402(a)(l) of the 1972 Act authorized
the setting of requirements for direct dischargers on a
case-by-case basis in the absence of regulations, Congress
intended that, for the most part, control requirements would be
based on regulations promulgated by the Administrator of EPA.
12
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Section 304(b) of the Act required the Administrator to
promulgate regulations providing guidelines for effluent
limitations setting forth the degree of effluent reduction
attainable through the application of BPT and BAT. Moreover,
Sections 304(c) and 306 of the Act required promulgation of New
Source Performance Standards (NSPS). Sections 304(f), 307(b),
and 307(c) required promulgation of regulations for pretreatment
standards. In addition to these regulations for designated
industry categories, Section 307(a) of the Act required the
Administrator to promulgate effluent standards applicable to all
dischargers of toxic pollutants. Finally, Section 501(a) of the
Act authorized the Administrator to prescribe any additional
regulations "necessary to carry out his functions" under the Act.
On December 27, 1977, the President signed into law the
Clean Water Act of 1977. Although this law makes several
important changes in the Federal water pollution control program,
its most significant feature is its incorporation into the Act a
program for toxic pollution control. Section 301(b)(2)(A) and
Section 301(b)(2)(C) of the Act required the achievement by July
1, 1984, of effluent limitations requiring application of BAT for
"toxic" pollutants, including the 65 "priority" pollutants and
classes of pollutants which Congress declared "toxic" under
Section 307(a) of the Act. Likewise, EPA's programs for New
Source Performance Standards and pretreatment standards are now
aimed principally at toxic pollutant controls. Moreover, to
strengthen the toxics control program, Congress added Section
13
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304(e) to the Act. Section. 304(e) authorizes the Administrator
to prescribe what have been termed "best management practices"
(BMPs) to prevent the release of toxic pollutants from plant site
runoff, spillage or leaks, sludge or waste disposal, and drainage
from raw material storage associated with, or ancillary to, the
manufacturing or treatment process.
The Clean Water Act of 1977 also revised the control
program for nontoxic pollutants. Section 301(b)(2)(E) now
requires achievement by July 1, 1984 of "effluent limitations
requiring the application of the best conventional pollutant
control technology" (BCT) for discharges of conventional
pollutants from existing industrial point sources. Conventional
pollutants are those mentioned specifically in Section 304(a)(4),
(biochemical oxygen-demanding pollutants (BODs), total suspended
solids (TSS), fecal coliform, and pH), plus any additional
pollutants defined by the Administrator as "conventional." On
July 30, 1979, the Agency designated oil and grease as a
conventional pollutant (44 FR 44501).
For nontoxic, nonconventional pollutants, Sections
301(b)(2)(A) and (F) require achievement of BAT effluent
limitations within three years after their establishment or July
1, 1984, whichever is later, but not later than July 1, 1987. On
April 13, 1979, BPT effluent limitations guidelines were
promulgated for the onshore subcategory, coastal subcategory, and
the agricultural and wildlife water use subcategory of the oil
and gas extraction industry [44 FR 22069]. Effluent limitations
14
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were reserved for the stripper subcategory due to lack of
technical data.
The 1979 BPT regulation established a zero discharge
limitation for all wastes under the onshore subcategory. The
limits for the coastal subcategory established oil and grease and
residual chlorine limitations equivalent to the offshore
subcategory. Zero discharge agricultural and wildlife subcategory
limitations were established, except for produced water which has
a 35 mg/L oil and grease limitation.
The American Petroleum Institute (API) challenged the
1979 regulation [API v. EPA, 661 F.2d 340 (5th Cir. 1981)]. The
Court remanded EPA's decision transferring 1,700 wells from the
coastal to the onshore subcategory (47 FR 31554). The Court also
directed EPA to consider establishing discharge limits for
marginal gas wells.
Project Objectives
The objectives of this Project were to identify and quantify
waste constituents, to document site-specific waste sources and
volumes, and to aid in documentation of nationwide and specific
regional industry practices. These objectives were met by
collecting technical data through the literature and industry
sources and by collecting and analyzing samples of waste.
15
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Specific objectives of the oil and gas exploration,
development, and production Field Sampling and Analysis Project
included:
o Provide data to be included in the report to Congress
on wastes associated with oil and gas exploration,
development, and production activities as required by
RCRA.
o Provide nationwide data on sources and volumes of oil
and gas wastes.
o Provide information on the complexity and diversity of
the wastes generated by the industry, current disposal
practices, and ultimate treatment.
o Identify characteristics and constituents of the waste
streams and estimate variability of these waste
streams.
o Provide data that can be used in the design of a
larger, more comprehensive sample survey of the
industry.
16
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PROJECT DESCRIPTION
Project Management.
This report presents results from a sampling and analysis
project managed by EPA's Industrial Technology Division (ITD)
using contractors to perform the sampling, analysis, data review,
and statistical analysis. Figure 1 illustrates the relationships
among the EPA offices and contractors involved in this project.
Overall sampling, analysis, and data collection activities were
coordinated by the EPA Sample Control Center. ITD has used these
systems for more than eight years to support effluent limitations
and guidelines development.
This Project also parallels the Project conducted by ITD in
1981 to characterize the offshore oil and gas industry, although
the diversity of sites and types of chemical testing performed
were greater in this Project than in the Offshore Project.
Sampling Strategy
Overview
This section summarizes the sampling strategy and its
implementation in this Project. A draft document describing the
Agency's sampling strategy was published in May of 1986. The
draft document has been revised to reflect actual implementation
of the sampling strategy. Appendix B presents the revised
sampling strategy document.
17
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William Telliard, Chief
Energy and Mining Industry Branch
Industrial Technology Division
Office of Water
±
Truett DeGeare, Chief
Special Wastes Branch
Waste Management Division
Office of Solid Waste and
Emergency Response
Susan de Nagy
EPA Project Officer
Energy and Mining Industry Branch
Industrial Technology Division
Office of Water
00
CENTEC Corporation
Sampling Contractor
Kerri Kennedy
Project Manager
R. Clifton Bailey, Ph.D.
Project Statistician
Program Integration and
Evaluation Branch
Office of Water
SRI International
Barry Eynon
Project Statistician
Sample Control Center
Jim King
Sampling and Analytical
Coordinator
Interface, Inc.
Dale Rushneck
Project Scientist
Analytical i < Laboratories
Centec Analytical
Systems
S-Cubed
Triangle
Laboratories
U.S. Testing
Figure 1. Project Management Organization
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Target Population
The sampling program was designed to develop
information about wastes from four types of sites: drill sites,
production sites, centralized pits, and centralized treatment
facilities. The total number of sample sites was 49, distributed
as shown in Table 4.
Eighty-six percent of the sites sampled were active
drill or production sites. This allocation reflects the Agency's
interest in developing information regarding the most prevalent
waste sources within the industry. Fourteen percent of the sites
sampled were centralized waste storage or treatment facilities.
This allocation addresses the need to develop information about
the types of processes, characteristics of commingled waste, and
the characteristics of treated commingled wastes.
Selection of Sample Sites
A sample frame was constructed by geographically
defining eleven zones (or strata). These zones were primarily
developed by grouping common geological formations and operating
practices, using state borders as boundaries between zones.
(Refer to Appendix B for a detailed discussion of zone
construction.) Figure 2 shows the zones used for site selection.
Zone 1 and Zone 3 were excluded from the sample frame because
there was essentially no oil and gas exploration, production, or
development activity in those states. Thus, sample sites were
distributed through nine zones.
19
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Table 4. Distribution of Types of Sample Sites.
Number of
Type of site sites sampled
Drill sites 19
Production sites
Produced water 21
Tank bottom sludges 2
Centralized pits 4
Centralized treatment 3
Total 49
20
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to
Figure 2. Site Selection Zones
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The site selection process was designed to handle two
types of sites: (1) sites randomly selected, and (2) sites
specifically selected on the basis of judgment. Randomly
selected sites were distributed uniformly across the zones to
ensure coverage. Specifically selected sites were used to
supplement equal distribution of sites, to examine particular
practices of interest, or to replace randomly selected sites
which could not be sampled. Appendix B presents a detailed
discussion of this strategy.
Random site selection. The design used for random site
selection involved two steps: First, states were randomly
selected to become sampling site hosts based on a weighted
measure of drilling or production activity that reflected the
most recently published data at the time the selections were
made. For drill sites, states within each zone were weighted
according to recent annual drilling activity. An example of the
process for selecting state(s) within zones is presented in
Figure 3. For production sites, states within each zone were
weighted according to recent annual production rates of oil, gas,
and gas liquids. A random number table was used to select first
and second states as sample site hosts for each zone. Finally,
sites were randomly selected from each selected state using lists
of sites developed by state agencies.
Using the site selection strategy, each zone would
be expected to have two randomly selected drill sites, with one
extra drill site in the zone of most activity. Table 5 shows
22
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STEP 1: Choose a zone for selection of states within zones.
In this example, Zone 7 was chosen.^
STEP 2: Using the most recent published reports, assign
sequential integers to each state within Zone 7 (our
example), in proportion to the type of activity and
sample. In this example, 26 integers (sequentially 001
through 026) were assigned to Oklahoma. This
assignment corresponds to Oklahoma's 26 percent of the
drilling activity in Zone 7. The next 74 integers (027
through 101) were assigned to Texas (corresponding to
Texas' 74 percent of the zone's drilling activity).
NOTE: For selection of production sites, integers were
assigned proportional to percent of zone
production.
T
STEP 3: Use a random number table to select the appropriate
number of sites (see below). In this example, two
drill sites were to be selected. As can be seen on
the random table below, the first two integers
encountered between 001 and 101 were 039 and 098.2
Both integers fell between 027 and 101; thus, both
sites were selected to be sampled in Texas.
.4562287 .0285849 .3731043 .6390392 .7548944 .3618006 .2250784 .1348046
.2155620 .9452450 .1556293 .4536573 .7071668 .3958532 .4816542 .2067786
.4938779 .7347435 .8429384 .3673052 .9131544 .1442967 .0370933 .6366895
.1168452 .6056545 .7068156 .3519544 .9943023 .2877842 .9730231 .6278825
.OS6@ .0754877 .4359655 .4956858 .9607196 .0899488 .2435953 .4494166
.7653243 .6655329 .1916084 .9510508 .8813455 .1681906 .0238223 .9777881
.3698315 .2289397 .6174680 .1835056 .9382041 .2755072 .4383974 .7996694
.3141360 .2669989 .3748569 .8571130 .1391276 .3909494 .8686801 .5850169
.1252473 .6559180 .9897554 .7194242 .9280202 .0025309 .3163665 .3458144
.8458867 .7358407 .9800887 .3110891 .8861431 .7678877 .9859674 .2459249
.1100185 .752$9§ .0387286 .8410738 .1342213 .7776624 .2078029 .9753584
.8162183 .0272849 .4106072 .3258962 .7370280 .1285043 .0630326 .8790774
.1424900 .8112515 .4064430 .8053689 .6711154 .8894297 .1787127 .3390880
.33IB1B3 .4773176 .6647042 .0680304 .0038059 .4757344 .4668019 .3502432
.6895318 .1914800 .9350022 .8752769 .4096173 .2021570 .2696246 .7030698
.2841714 .5214285 .1785654 .3206702 .0837761 .4720133 .0016623 .2077818
.7635107 .4388415 .8551911 .8988911 .3613879 .1734906 .6863279 .7909816
^Zone 7 is chosen as an example. The process was followed for
selection of states within each zone.
2The random numbers presented here represent an excerpt from a
table generated using Supercalc*3 software from the Sorcim/IUS
Corporation (Sorcim/IUS Micro Software, Release 2, August,
1984).
Figure 3. Example of Process Used for Selection of States Within
Zones.1
23
-------
that adherence to the site selection strategy was high. However,
problems of site identification, inaccessibility, and scheduling
caused shortfalls of randomly selected drill sites in Zone 10 and
Zone 11. (Zone 10 and Zone 11 were each missing one randomly
selected drill site.) Two randomly selected production sites
were sampled in each zone, with the exception of Zone 5, and Zone
6 (see Table 5). For a discussion of assignment of second
production samples, see Appendix B.
Specific site selection. One drill site was
specifically selected in each of Zones 7, 10, and 11 (see Table
5). In Zone 7, one drill site was specifically selected because
the random site selection process missed Oklahoma, a state with
more drilling activity than most entire zones. In Zone 10 and
Zone 11, circumstances of site availability, scheduling, and
accessibility compelled specific selection of one drill site in
each zone.
One production site was specifically selected in
Zone 7 and three sites were specifically selected in Zone 4 (see
Table 5). In Zone 7, one production site was specifically
selected because the random site selection process missed
Oklahoma, a state with considerable oil and gas production.
Specialty sites, including tank bottom sludges,
centralized pits, and centralized treatment facilities are also
shown in Table 5.
24
-------
Table 5. Distribution of Probability Sites and Specifically-Selected Sites Among Zones.
to
Ul
NO. PROBABILITY SITES
NO. SPECIFIC SITES
Zone
2
4
5
6
7
8
9
10
11
TOTAL
Drill
2
2
2
2
2
2
2
1
-1
16
Prod. T.B.
2 1
2
1
1
2
2
3
2
_2 _r
17 1
Drill Prod. T.B. Cent. Pit Cent. Trtmt. TOTAL
- 1 6
3 - - 1 8
- - - - - 3
- - 3
11-1 - 7
1 - 5
j
2 - 7
1 - 1 - - 5
-I — — — J= _5
3414 3 49
Abbreviations: Drill - drill site
Prod. - production site
T.B. - tank bottom sludge site
Cent. Pit - centralized pit site
Cent. Trtmt. - centralized treatment site
-------
Sampling Activities
Sampling was conducted from June through September
1986. The itinerary is presented in Table 6. Trip reports were
written for each site sampled. Trip reports include site
identification, status during sampling, description, plot plan,
sampling information, and other technical information. Technical
details are included in Appendix C. Sampling protocols are
described in the QUALITY ASSURANCE AND QUALITY CONTROL section of
this report, and in Appendix G.
Selection of Analytes
The analytes selected for testing in this Project were those
on various regulatory lists or those specific to characterization
of this industry. The regulatory lists from which the pollutants
were taken are the:
Priority Pollutant List [NRDC vs Train, 8 ERG 2120
(DDC1976)]
Priority Pollutant Appendix C List [ibid.]
RCRA 40 CFR Part 261 Appendix VIII List [50 FR 1999]
Michigan List [49 FR 49793]
Superfund Hazardous Substances List
Analytes to be added to the RCRA Appendix VIII List
(EPA memo from Robert April to Marcia Williams, 20
Dec 85)
Paragraph 4(c) List (NRDC vs Train, op. cit.;
high priority compounds detected in wastewaters)
ITD List (analytes specific to.ITD programs)
The list of analytes tested for in this Project is given in
Appendix F. This list covers all conventional pollutants (e.g.,
26
-------
Table 6. Itinerary of Sampling Activities
Date
June 12, 1986
June 14, 1986
June 16, 1986
June 17, 1986
June 17, 1986
June 19, 1986
June 20, 1986
June 23, 1986
June 24, 1986
June 25, 1986
June 26, 1986
June 26, 1986
June 27, 1986
June 27, 1986
June 29, 1986
June 29, 1986
June 30, 1986
July 2, 1986
July 2, 1986
July 7, 1986
Location
Mobile, AL
Plaquemines
Parish, LA
St. Mary Parish,
LA
Pointe Coupee
Parish, LA
Iberville Parish
LA
Wood County, TX
Talco, TX
Wheeler County, TX
Wheeler County, TX
Bloomfield, NM
San Juan County, NM
Grady County, OK
Lea County, NM
Oil Center, OK
San Juan County, UT
McClain County, OK
San Juan County, UT
Montgomery County,
KS
Uintah County, UT
Hays, KS
Operator
Separation and Filtration
Enterprises, Inc.
Freeport-McMoran and
Partners Operating Co.
Sun Exploration and
Production Co.
Westland Oil Development
Corporation
Mobil Oil Exploration and
Producing Southeast Inc.
Exxon Company, USA
Mobil Producing Texas and
New Mexico Inc.
Murexco Petroleum, Inc.
Chevron USA, Inc.
Basin Disposal, Inc.
Amoco Production Co.
Ward Petroleum Corporation
Cities Service Oil and Gas
Corporation
George Kahn Operating Co.
Meridian Oil Co.
Royce Kelly Disposal
Marathon Oil Co.
Cindy Van Dyke
Wexpro Company
Damar Resources
Incorporated
27
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Table 6 (Cont'd). Itinerary of Sampling Activities
Date
July 7, 1986
July 9, 1986
July 11, 1986
Location
Pendennis, KS
Golden Meadows, LA
Greeley, CO
July 13, 1986 Gillette, WY
July 14, 1986
July 14, 1986
July 15, 1986
July 15, 1986
July 16, 1986
Casper, WY
Oxnard, CA
Uinta County, WY
Ventura, CA
Mountain View, WY
July 16, 1986 Kern County, CA
July 16, 1986 Kern County, CA
July 29, 1986 Jackson County, MI
July 30, 1986 Gladwin County, MI
July 31, 1986
August 1, 1986
August 2, 1986
August 3, 1986
August 7, 1986
August 8, 1986
August 18, 1986
Hillsdale County,
MI
North Slope, AK
North Slope, AK
North Slope, AK
Cook Inlet, AK
Kanai, AK
Leeville, LA
Operator
American Energies Corp.
E-Vap, Ltd.
Diamond Shamrock
Exploration Company
Amoco Production Co.
Sun Exploration and
Production Co.
Waste, Incorporated
Shell California
Production, Inc.
Sun Exploration and
Production Co.
McFarland Energy, Inc.
Shell California
Production, Inc.
Wolverine Gas and Oil
Company, Inc.
Sun Exploration and
Production Co.
Powell Production, Inc.
Sohio Alaska Production Co.
Sohio Alaska Production Co.
ARCO Alaska, Inc.
Marathon Oil Co.
Union Oil Co. of California
28
-------
Table 6 (Cont'd). Itinerary of Sampling Activities
Date Location Operator
August 19, 1986 Jane Lew, WV
August 21, 1986 Henderson County,
KY
August 22, 1986 Hopkins County, KY
Sept. 3, 1986 Franklin, PA
Sept. 4, 1986 Venango County, PA
Sept. 29, 1986 Leeville, LA
Scott Oil Company
Maverick Production, Inc.
Ecus Corporation
Franklin Brine Treatment
Corporation
Mark Resources Corporation
29
-------
and TSS) and metals; and it does not list every individual
organic compound. Specifically, major organic analyses and
classes of the tetra- through octa-chlorodibenzo-p-dioxins and
furans (136) are not listed. The analytical methods employed in
this Project for groups of analytes are summarized in Table 7.
This table is divided into three categories: organic analytes
are specific chemical compounds based on carbon chemistry; metals
are chemical elements (substances that cannot be divided without
altering their physical and chemical properties); conventional
pollutants are, for the most part, chemical substances that have
been historically used to assess the performance of water
treatment plants (drinking water and sewage) and for assessing
water quality. Other analytes included in the conventionals
category are those that test for substances as a group, rather
than as a single chemical compound. For example, the retort test
determines the amount of oil in a mud sample.
Organic compounds on the List of Analytes in Appendix F are
typified by normal-, polynuclear-, and chlorinated hydrocarbons;
metals are typified by mercury arsenic, and selenium;
conventional pollutants are typified by ammonia, total dissolved
solids, sulfides, and oil and grease.
The organic and metals analytes are further subclassified
according to the analytical method employed in this Project.
"Volatiles" is that fraction of the organic analytes which is
purged from the waters and sludges for determination by GCMS;
30
-------
Table 7. Summary of Analytes
Number of Analytes
Organics
Volatiles by GCMS
Isotope dilution 32
Reverse search 23
Semi-volatiles by GCMS
Isotope dilution 82
Reverse search 94
Dioxins and furans by GCMS 136
Pesticides by GC
Electron capture detector (ECD) 39
Flame photometric detector (FPD) 35
Herbicides by GC/ECD 3
Total organics 444
Metals
Atomic absorption 6
Calibrated Inductively Coupled Plasma (ICP) 21
ICP screening 41
Total metals 68
Conventionals by wet chemistry 19
RCRA (Corrosivity, Ignitability, Reactivity) __3
Total number of analytes 534
31
-------
"semi-volatiles" is that fraction extracted from waters and
sludges for determination by GCMS.
In Appendix F, the analytes are listed by (1) Chemical
Abstracts Service Registry Number (CAS NO) and by (2) ANALYSIS
TYPE. A legend for the list in Appendix F and the rationale for
pollutant selection are given as a preface to the list.
Chemical Analyses
Samples were tested by laboratories using EPA analytical
methods. Nearly all of these methods are either approved
wastewater methods (CWA 304(h)), proposed or approved methods for
testing wastes (RCRA SW-846, TCLP), or Superfund Contract
Laboratory Program methods. The methods used form Appendix D and
are summarized in Table 8. In selecting between available
methods, EPA chose methods that it believed would produce results
meeting Project requirements. The SW-846 and 304(h) methods were
drawn upon most heavily because of their direct applicability to
the samples that were expected to be encountered. Other
considerations were:
(1) EPA's experience in managing laboratories using a given
method or method set. For example, EPA has used Methods 1624 and
1625 in testing untreated and treated wastewaters and in-process
streams from a diversity of industries since 1980 and thus has
extensive experience in applying the methods to samples
containing the complex mixtures of organic compounds that were
anticipated in the Project.
(2) Having contracts in place that would permit the
analyses to be performed in accordance with the Project schedule.
At the time of Project inception, ITD had in place contracts for
testing the organic, metal, and inorganic analytes required for
this Project. Alternate methods would have necessitated contract
modifications or award of new contracts.
32
-------
Table 8. List of Analytes, Matrices, Fractions, and Methods for
the Exploration, Development, and Production of Crude
Oil and Natural Gas Field Sampling and Analysis Project
(1)
Analysis (2) (3)
Category Matrix Fraction
Organics Water Pesticide
Herbicide
Volatiles
B/N
Acid
Diox/Furan
Sludge Pesticide
Herbicide
Volatiles
B/N
Diox/Furan
t~\vt-r /*P/"*T "O
Metals Water Mercury
Furnace
ICP
Sludge Mercury
Furnace
ICP
(4)
Analysis (5) (6)
Technique Method Modification
GCEC
GCFPD
GCEC
GCMS
GCMS
GCMS
HRGCLRMS
HRGCLRMS
GCEC
GCFPD
GCEC
GCMS
GCMS
HRGCHRMS
C* — * w» .n. «"* j-m £ s-* v»
CVAA
FURNAA
Sb
As
Se
Ag
Tl
ICP
CVAA
FURNAA
Sb
As
Se
Ag
Tl
ICP
1618
1618
1618
1624C
1625C
1625C
613M C14
8280 High
1618
1618
1618
1624C
1625C
8280M High
245.5
204.2
206.2
270.2
272.2
279.2
200. 7M + 42
245. 5M CLP
3020
204. 2M CLP
206. 2M CLP
270. 2M CLP
272. 2M CLP
279. 2M CLP
200. 7M + 42
to C18
res. MS
res. MS
Element
screen
Element
screen
+ HC1 if nee,
Met/TCLP
•Same as for waters-
33
-------
Table 8 (Cont'd).
List of Analytes, Matrices, Fractions, and
Methods for the Exploration, Development, and
Production of Crude Oil and Natural Gas Field
Sampling and Analysis Project
(1)
Analysis
Category
Conven-
tional
Haz .
waste
(2) (3)
Matrix Fraction
Water Ammonia
BODs
Chloride
Chlorine
COD
Cyanide
Fluoride
Nitrate/
nitrite
pH (field)
(lab)
Oil & gr.
Residue
Specific
conduct.
Sulfide
TOG
TVO
Sludge Ammonia
BODs
Chloride
COD
Cyanide
Fluoride
Nitrate/
nitrite
pH (field)
(lab)
Oil & gr.
Oil & gr.
Residue
Sulfide
TOG
TVO
Sludge Ignit.
Corrosiv.
React.
(4)
Analysis (5) (6)
Technique Method Modification
Electrode
Probe
Ion chrom.
Color.
Color.
Distill.
SPADNS
Ion chrom.
Paper
Electrode
Grav.
Grav.-TDS
-TSS
-Tot.
Wheatstone
bridge
Titr.
Combust.
TOG
Electrode
Probe
Ion chrom.
Color.
Distill.
SPADNS
Ion chrom.
Paper
Electrode
Grav.
Retort
Grav. -Tot.
Color.
Combust.
TOG
350.3
405.1
300.0
Field test
410. 4M Saline
335.2
340.1
300.0
— —
150.1
413.1
160.1
160.2
160.3
120.1
376.2
415.1
415. 1M Purge & trap
350.3
405.1
300.0
410. 4M Saline
335.2
340.1
300.0
— —
150.1
413.1
—
160.3
376.2
9060
415. 1M Purge & trap
1010
1110
SW-846
34
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Table 8 (Cont'd). List of Analytes, Matrices, Fractions, and
Methods for the Exploration, Development, and
Production of Crude Oil and Natural Gas Field
Sampling and Analysis Project
Notes:
(1) Analysis category - general category into which analytes can
be classified.
Organics - carbon based chemical compounds. The list of
these compounds can be found on the ITD/RCRA List of
Analytes.
Organics/TCLP - organic compounds leached from sludge and
sediment using the RCRA Toxicity Characteristic Leaching
Procedure.
Metals - elements found on the ITD/RCRA List of Analytes.
Metals/TCLP - metals leached from sludge and sediment
using the TCLP.
Conventional - conventional wastewater chemistry
analytes.
Hazardous waste characteristics - RCRA analytes which
determine if a waste is hazardous. The TCLP has been
proposed to replace the current EP Toxicity procedure.
(2) Matrix - the nature of the sample.
Water - produced water, runoff water, or other sample
which is nearly all water.
Sludge - tank bottoms, drilling muds, or other sample which
contains a significant quantity of solids (normally greater
than 1 percent).
(3) Fraction - a means of further categorizing the sample for
purposes of analysis.
Volatile - volatile organic compounds analyzed by GCMS.
B/N - base/neutral organic compounds analyzed by GCMS.
Acid - organic acids analyzed by GCMS.
Diox/Furan - chlorinated dibenzo-p-dioxins and chlorinated
dibenzofurans.
TVOC - total volatile organic carbon.
35
-------
Table 8 (Cont'd). List of Analytes, Matrices, Fractions, and
Methods for the Exploration, Development, and
Production of Crude Oil and Natural Gas Field
Sampling and Analysis Project
Furnace - metals analyzed by furnace atomic absorption
spectrometry.
ICP - metals analyzed by inductively coupled spectrometry.
BODs - biochemical oxygen demand.
COD - chemical oxygen demand.
Oil and gr. - oil and grease.
Specific conduct. - specific conductivity.
TOC - total organic carbon.
Ignit. - hazardous waste characteristic of ignitability.
Corrosiv. - hazardous waste characteristic of corrosivity.
React. - hazardous waste characteristic of reactivity.
(4) Analysis technique
GCEC -gas chromatography combined with an electron capture
detector.
GCFPD - gas chromatography combined with a flame photometric
detector.
GCMS - gas chromatography combined with a mass spectrometer
detector.
HRGCLRMS - high resolution gas chromatography combined with
low resolution mass spectrometry.
HRGCHRMS - high resolution gas chromatography combined with
high resolution mass spectrometry.
TOC - total organic carbon analyzer.
CVAA - cold vapor atomic absorption spectrometry.
FURNAA - furnace atomic absorption spectrometry.
Ion chrom. - ion chromatography.
Color. - colorimetric.
36
-------
Table 8 (Cont'd). List of Analytes, Matrices/ Fractions, and
Methods for the Exploration, Development, and
Production of Crude Oil and Natural Gas Field
Sampling and Analysis Project
Titr. - titrimetric.
Distill. - distillation.
SPADNS - distillation followed by calorimetric.
Grav. - gravimetric.
TDS - total dissolved solids.
TSS - total suspended solids.
Tot. - total solids.
Retort - the platform operator's method of determining the
oil content of a sample from a well .
(5) Method - the EPA method number.
Water methods are three-digit numbers (some include a
decimal). ITD methods are 1618, 1624C, and 1625C. Office
of Solid Waste SW-846 methods are all other four-digit
numbers .
(6) Gives a modification to the method.
014 to Cls - Samples were screened for all tetra- through
octa-isomers of chlorinated dibenzo-p-dioxin and dibenzo-
f uran .
High res. MS - high resolution mass spectrometer was used in
place of low resolution instrument to gain specificity.
+ 42 element screen - search of a specific ICP wavelength
for 42 metals in addition to the 27 determined by
calibration and search.
CLP - method modified for application to solids by the
Superfund Contract Laboratory Program.
Purge & trap - volatiles are purged from water or sludge.
+ HC1 if nee. - hydrochloric acid added to aid in digestion
of organic sludges if necessary.
Field test - test performed in at the site.
Saline - Hach method 8000.
37
-------
(3) Application of these methods to analysis of samples
from the offshore oil and gas extraction industry. In 1981, ITD
used Methods 1624 and 1625 for analysis of samples collected from
produced waters on offshore oil platforms and was therefore
familiar with the problems likely to be encountered with these
samples. Although other methods might have been applicable, EPA
desired to take advantage of its experience with methods that had
been demonstrated to work on the complex matrices involved.
(4) Quality assuring results with these methods. ITD has
in place a computerized system for quality assuring results from
analysis using Methods 1624 and 1625. Although it would have
been possible to apply the QA system to analysis of the same list
of organic analytes using SW-846 or Superfund CLP methods, ITD
had extensive experience with the quality assurance system using
Methods 1624 and 1625, and would have had to proof-test the QA
system with alternative methods prior to their use.
Methods used cover many analytes of importance not only to
EPA Solid Waste Programs but to all of EPA. In late 1985, EPA
became concerned that the growing number of pollutants on a
growing number of lists presented a formidable analytical
challenge. As a result, EPA created "The 1986 List of Lists," a
computer listing containing the analytes considered by EPA and a
state program office to be of concern. This list also contained
information about the origin of the analyte; the Chemical
Abstracts Service (CAS) registry number where it was known; the
regulatory, common, and CAS name for the analyte; the analytical
method that EPA either knew or estimated could be used for
determination of the analyte; and other technical data specific
to the analysis of the analyte.
Lists of analytes that do not commonly occur in Agency
regulations and the reason for method selection for determination
of these analytes are:
38
-------
(1) The Appendix C List. In the 1976 Consent Decree and
its subsequent amendments, the Court directed the Agency to study
the environmental hazards created by certain other substances not
on the original list of 65 substances. These are listed in
Appendix C to the Consent Decree and include the normal
hydrocarbons. Normal hydrocarbons do not appear on the RCRA
Appendix VIII list, but were known by ITD to be the most
prevalent pollutants produced by the oil and gas extraction
industry. EPA has used Methods 1624 and 1625 to monitor for the
normal hydrocarbons and other organic Appendix C pollutants for
more than four years and, therefore, has extensive experience
with testing for these pollutants with these Methods.
(2) The Paragraph 4(c) List. Paragraph 4(c) of the Consent
Decree required EPA to test wastewaters for other pollutants, to
consider adding the pollutants it found to the list it regulates,
and to begin testing for these pollutants in its monitoring
programs. EPA has been testing for the high priority pollutants
detected in the paragraph 4(c) study for more than three years
using Methods 1624 and 1625 and, therefore, has extensive
experience in testing these pollutants using these Methods.
(3) The RCRA Appendix IX Groundwater Monitoring List. This
list was revised on 20 December 1985 based on the results of a
meeting between Office of Water, Office of Solid Waste, Office of
Solid Waste and Emergency Response, Office of Research and
Development, and EPA Regional and Environmental Monitoring
Laboratory personnel. EPA incorporated the revised list into the
list of analytes for which it planned to test, and began
collecting test data on methods appropriate for these analytes.
(4) The Michigan List. The Michigan Petition [49 FR 49793]
petitioned EPA to add 120 substances to the RCRA Appendix VIII
List. Many of the substances on this list were pesticides for
which SW-846 methods did not exist. EPA incorporated this list
into its analytical programs, and collected test data on methods
for these analytes.
After creating "The List of Lists," EPA engaged analytical
experts to select the substances that could be analyzed using
known methods. This process was biased toward positives, i.e.,
if there was doubt about an analyte, it was retained. EPA then
applied certain editing rules to the list to produce "The 1986
Industrial Technology Division List of Analytes" (the "ITD
List"). The editing rules related mainly to the availability of
39
-------
an analytical method, the source for an analytical standard for
the analyte, the stability of the analyte in water, and other
technical considerations. After editing, the Agency developed or
modified test methods for untested analytes on the ITD List in
contract laboratories. EPA then revised the ITD List to reflect
the results of this testing, e.g., if an analyte could be
recovered from water, it remained on the list; if not, it was
removed. This process also determined the precision and recovery
for an analyte in a contract laboratory. Therefore, through the
process of listing, editing, and testing, EPA maximized the
number of pollutants that the Agency was to determine and we knew
the performance characteristics of the methods that we chose for
this Project.
Some methods were extended to cover an extended list of
analytes. For example, Methods 1624 and 1625 were extended to
cover the organic compounds on the RCRA Appendix VIII and IX
Lists (50 FR 1999 and 41 FR 26639, respectively), where it was
demonstrated feasible to test for a given analyte. ITD tested
these analytes using Methods 1624 and 1625 prior to Project
inception and therefore knew the accuracy and precision that
could be expected for these compounds prior to application of
these methods.
Nearly all methods employed were EPA (ITD, 304(h), CLP, or
SW-846) or Standard Methods. The exceptions are methods for pH
using paper, for chlorine using the Coastal kit, and for the Oil
and Grease test which employs the IMCO Retort, for which no EPA
40
-------
or Standard Method is available. The IMCO Retort is the oil and
gas extraction industry operator's method for determining the oil
content of drilling fluids.
Data Collection and Analysis
Data Reporting and Validation
Data from the analytical tests were reported to the
Sample Control Center (SCC). A description of the operation of
the Sample Control Center is given in Appendix E. Data were
received in one of three forms:
(1) Gas chromatography/mass spectrometry (GCMS) data
from analysis of the volatile and semivolatile GCMS fractions of
the organic compounds were received on IBM compatible 9-track
magnetic tape. After tape log-in and the assignment of a tape
number, the tapes were shipped to EPA's National Computer Center
(NCC) in Research Triangle Park, North Carolina. The tapes were
mounted and read into the IBM mainframe computer, and the data
contained on the tapes were accessed by terminal from the Sample
Control Center. Tape processing consists of three steps
involving three levels of testing. After processing, the data,
including the quality assurance data, were placed in a
Statistical Analysis System (SAS) Data Set so that these data
could be accessed by SRI International (SRI) for statistical
evaluation.
(2) Metals and conventional pollutants data were
received on a floppy diskette in Lotus format. The data were
printed for review, and a copy of the diskette was forwarded to
SRI. Upon receipt by SRI International, the data were read from
the floppy disk into a personal computer and uploaded into the
NCC IBM mainframe. Corrections to data were made by phone
between SCC, SRI, and the laboratory.
(3) Metals and conventional pollutants QA data,
pesticide/herbicide data, and dioxin/furan data were received in
hard copy form. These data were reviewed, discrepancies were
resolved with the laboratories, and corrected copies were shipped
to SRI for encoding into the NCC IBM mainframe.
41
-------
Data Base Construction
Analytical data were received by SRI in three forms:
(1) a Statistical Analysis System (SAS) database on the NCC IBM
mainframe containing data for organics, (2) a Lotus 123
spreadsheet with conventional, metals (including the 27 ITD
metals, 42 metals by Inductively Coupled Plasma (ICP) screening,
and 27 ITD metals in the TCLP analysis of sludges), and (3)
hardcopy data for dioxins/furans, pesticides, and salinity.
Table 9 and Table 10 present a summary of liquid samples and
solid samples, respectively, analyzed by site, location, and
analyte grouping (i.e., conventionals, metals, organics). These
tables also illustrate the structure of the data base.
Organics Data Reduction
To produce the most accurate results, the methods
for analysis of organic compounds (Methods 1624 and 1625) require
that the sample be diluted and reanalyzed when the concentration
of any analyte exceeds the analytical range of the instrument.
This requirement can result in multiple concentrations for a
given analyte in the series of dilutions performed. For multiple
concentration/dilution runs for each sample fraction (acid,
base/neutral, combined acid/base/neutral, or volatile), the
concentration for each organic analyte was reduced to the single
most accurate value. This process was performed by computer
using logic that selects the most accurate value for the
pollutant, regardless of the number and magnitude of the
dilutions. This logic was structured as follows:
42
-------
Table 9. Number of Liquid Samples Analyzed
te
ntral Pit
ntral
eatment
illing
eduction
Location
Central Pit
Effluent
Influent
Tank
Pit
Tank Bottom
Drilling Mud
Endpoint
Midpoint
Tank Bottom
Conventional
Organics^
Dioxin^
3
2
Metals'
3
2
Pesticides
3
2
17
1
21
3
17
1
24
3
16
—
21
5
3
2
2
2
onventional and RCRA pollutants, by applicable EPA methods.
etals, by applicable methods (AA, ICP, Superscan).
rganic pollutants, by EPA Method 1624C (volatiles) and 1625C
non-volatiles).
esticides, by EPA Method 1618.
ioxins and furans, by EPA Method 613 (one sample analyzed by
igh-resolution GCMS).
ne sample analyzed for volatile organics as solid phase.
43
-------
Site
Central Pit
Table 10. Number of Solid Samples Analyzed
Conventional1 Organics3 Dioxin5
Location
Central Pit
Metals-
Pesticides4
TCLP Metals'
TCLP Organics7
Central
Treatment
Drilling
£
Production
Effluent
Influent
Tank
Pit
Tank Bottom
Drilling Mud
Endpoint
Midpoint
Tank Bottom
3
1
2
21
-
1
_
-
1
3
1
2
21
-
1
_
-
1
3
1
2
18
1
2
__
-
1
2
1
-
5
-
-
_
-
2
4
1
-
4
—
-
— —
—
-
3
1
2
21
1
1
_
1
1
3
1
1
18
1
2
1
1
^Conventional and RCRA pollutants, by applicable EPA methods.
^Metals, by applicable methods (AAf ICP, Superscan).
^Organic pollutants, by EPA Method 1624C (volatiles) and 1625C
(non-volatiles).
^Pesticides, by EPA Method 1618.
^Dioxins and furans, by high-resolution GCMS.
^Metals in TCLP extract.
70rganic pollutants in TCLP extract.
-------
Metals Data Reduction
The laboratory performing analyses for metals
estimated the detection limit in each sample for the 27 metals on
the ITD list. For the 42 metals determined by Inductively
Coupled Plasma (ICP) screening, the laboratory provided a list of
detection limits in water. This list was entered into the NCC
IBM mainframe. The detection limit for the 42 metals determined
by ICP screening in solid samples was calculated based on the
detection limit in water, corrected for the percent solids
content of the solid samples. These detection limits were used
for the data reported in Appendix A.
Hardcopy Data Entry
The hardcopy data were coded twice and compared,
with differences resolved by reference to the printed data.
Questionable values were clarified through SCC with the
analytical laboratories. Finally, the data coding was spot
checked to ensure accuracy.
The hardcopy and Lotus data were uploaded to NCC
using an error-checking file transfer program. The data were
read into SAS and divided into three data sets: the first
contained results for pollutants in EPA samples; the second
contained results for surrogates, matrix spikes, and duplicates
in EPA samples; the third contained QA/QC results, including
calibration and ongoing precision and recovery results. The
results for samples were merged with information on site types,
45
-------
sample locations, and other sampling and logistics information,
so that statistical analyses could be applied to common site
types and to preclude unfounded data pooling. Table 11 contains
the list of variables and values in the three data sets.
Statistical Testing
Statistical analyses of the data were performed using
the Statistical Analysis System (SAS) package resident on the EPA
NCC IBM computer. Details of the statistical tests performed are
given in the RESULTS AND CONCLUSIONS section of this report.
46
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Table 11. Database Variables and Values
Variable
PLANTID
STATE
SAMPDATE
SAMPLE
EPISODE
PHASE
EXTRACT
LAB
ANALDATE
SAMTYPE
METHOD
Contents
Plant ID
State
Sampling Date
EPA Sample #
Episode Number
Sampling Phase
Extraction
Laboratory ID No.
Analysis Date
Sample Type
Analytical Method
Codes
XX
aa
date
xxxxx
xxxx
L
S
D
T
XXX
date
EPA
BLK
FBK
CAL
IPR
OPR
MS
MSD
CONVEN
METALS
SALINI
SS
1624C
1625C
1618
DIOXIN
HIRES
Values
Randomly assigned two-digit plant ID
2-letter state abbrev.
Liquid
Solid
Direct
TCLP
Field Sample
Blank
Field Blank
Calibration
Initial Precision and Recovery
Ongoing Precision and Recovery
Matrix Spike
Matrix Spike Duplicate
Conventional and RCRA poll, methods
AA, ICP, etc.
Salinity
SuperScan (Metals)
EPA Method 1624C (Volatile Organics)
EPA Method 1625C (Non-volatile
EPA Method 1618 (Pesticides)
[U.S. Testing's dioxin method]
High-Resolution GCMS (Dioxin)
Organics )
CMPD Extended CAS#
Cwith compound number list]
CHOICE
WATER
Sampling Choice
Produced Water
Volume
nnnnn See Appendix F
D
R
Directed
Random
x.x barrels/day
47
-------
Table 11 (Cont'd). Database Variables and Values
Variable
Contents
Codes Values
LIQUID
SLUDGE
AMOUNT
AMTQUAL
DETLIMIT
UNITS
SITBTYPE
SAMPLOC
Total Liquid Pit
Waste2 x.x bbl.
Total Liquid Pit
Waste2 x.x bbl.
Measured
Concentration x.x Units given by UNITS
0 = not detected
Qualifier
< Less than detection limit
ND Not detected
Detection Limit x.x
Units
mg/L,
etc. Concentration
% Percent
degF Degrees F
pH H+ as pH
urriho/cm Conductivity
S(-/+) S reactivity1, 0=no,
Site Type
P
D
CP
CT
Sampling Location INF
EFF
MP
EP
PIT
CP
TB
TNK
LDF
DM
Production
Drilling
Central Pit
Central Treatment
Influent
Effluent
Midpoint
Endpoint
Pit
Central Pit
Tank Bottom
Tank Sample
Landfill
Drilling Mud
reactivity was tested in the same samples, but was never found.
^Estimated at completion of drilling.
48
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QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC)
Project Organization and Objectives
The Project organization chart is shown in the PROJECT
DESCRIPTION section of this report. Project quality assurance
(QA) is organized as shown in Figure 4. The Project QA Officer
is Mr. William A. Telliard, who has responsibility for all
aspects of the sampling and analysis, and is ultimately
responsible for the quality of the results.
All sampling for the project was performed by CENTEC
Corporation under the "Sampling Plan and Sampling Quality
Assurance/Quality Control Plan" in Appendix G.
Quality of laboratory analyses was assured by the quality
assurance department in each individual laboratory. Results from
each laboratory were further quality assured by the EPA Sample
Control Center under the supervision of Mr. James King.
Data Quality Objectives
Data quality objectives are normally stated as "to
produce data with the highest quality possible." Because such
objectives do not take into consideration the quality which is
known to be achievable given time and resource constraints, a
more practical approach based on experience with what can
actually be achieved was adopted. This approach was to use
experienced systems for sampling, testing, logistics, and
49
-------
Office of Water
QA Officer
Martin Brossman
Sampling
QA Officer
Andrew Procko
(CENTEC)
Office of Solid Waste
QA Officer
Florence Richardson
Project
QA Officer
William Telliard
Laboratory
QA Officer
(Lab dependent)
Logistics
QA Officer
Jim King
Sample Control Center
Figure 4. QA/QC Management Organization
50
-------
statistical analysis, and to control these systems within known,
well-defined limits.
»
For laboratory testing, the overriding objective was to
ensure that the data produced met or exceeded known precision and
accuracy measures for the analyses performed. These requirements
are defined in the analytical methods used and are in the forms
of spike recoveries, differences between duplicates, and
statements of data quality, expressed as confidence limits. The
"Quality Control Analyses" subsection of the RESULTS AND
CONCLUSIONS section of this report gives a data quality statement
for each analyte where these data are available, and for
surrogate analytes where it was not possible to test every
analyte (chlorinated dioxins and furans, for example).
By using well-established systems with well-defined
operating limits for all parts of the Project, data quality
objectives became an integral part of Project objectives. Table
12 summarizes the data quality objectives (DQOs) for this
Project. For analytes tested by isotope dilution using Methods
1624 and 1625, the DQOs are specific to each analyte. The reader
is referred to Tables 6 and 10 of Methods 1624 and 1625,
respectively, for DQOs for the analytes tested by isotope
dilution (114) using these methods.
51
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Table 12. Data Quality Objectives for the Exploration,
Development, and Production of Crude Oil and
Natural Gas Field Sampling and Analysis Praject
Analyte or Fraction
Organics
Volatiles by GCMS
Isotope dil.
Reverse search
Semi-volatiles
Isotope dil.
Reverse search
Dioxins and furans
2,3, 7,8-TCDD
Others
Pesticides
Chlorine by BCD
Phos. by FPD
Herbicides
Metals
Atomic absorption
ICP
Calibrated
Screening
Classicals
Precision
RSD (2)
(4)
25% (5)
(4)
25% (5)
25%
50%
20%
20%
30%
20%
20%
10%
30%
25%
Accuracy
(3)
(4)
50-150%
(4)
50-150%
75-125%
50-200%
50-120%
70-120%
30-100%
80-120%
80-120%
90-110%
50-150%
80-125%
Completeness
> 95 %
(5) > 95 %
> 95 %
(5) > 95 %
> 95 %
> 95 %
> 95 %
(6) > 95 %
> 95 %
> 95 %
(7) > 95 %
> 95 %
(8) > 95 %
Notes:
(1) Methods and sample matrices are given in Table 5;
experimental details are given in Appendix D.
(2) Relative standard deviation (coefficient of variation).
(3) Expected maximum deviation from true value, except where
noted.
(4) Analyte specific; see Tables 6 and 10 in Methods 1624 and
1625, respectively.
(5) Average limits for precision and accuracy. Limits are
analyte dependent. Worst case limits range to 70% RSD for
precision and 10-300% for accuracy.
(6) TEPP, Methyl parathion, and Dichlorovos 40-120%; trimethyl
phosphate 25-100%.
(7) Tin: 80-120%.
(8) pH, BOD, and Oil and Grease: 70-130%.
52
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Representativeness
The representativeness of the data produced in this
Project is dependent mainly on the representativeness of the
sampling and the purity and authenticity of the standards used in
the laboratories. The details of sampling are described in the
"Sampling Strategy" and "Sampling Reports" in Appendices B and C,
respectively. The authenticity and purity of the standards used
in the laboratories is specified in the methods. That authentic
and pure standards were used is evidenced by the acceptability of
laboratory audits which use blind tests for proper identification
and quantification of analytes. The laboratories used for this
project were found to produce acceptable results in all audits
conducted in 1986. A summary of these audits is given in the
"Performance and System Audits" subsection of this report.
Information Flow and Project Scheduling
Communications concerning sampling between the Project
and the EPA Regions, the States, and Oil and Gas Industry were
controlled by the EPA Project Officer. Information flow related
to sampling, sample analysis, data reporting, data validation,
and statistical analysis was controlled by the Sample Control
Center. The flow of information and scheduling of Project
activities were documented through the Sampling Reports in
Appendix C and the various documents used by the Sample Control
Center, as described in Appendix E.
53
-------
Contracts were in place for the sampling, analysis,
data review, and statistical analyses prior to the start of the
Project, and all Project activities had been audited in some way
prior to Project inception and throughout its duration. For
example, the Project Officer and the EPA Project QA Officer
visited several sampling sites while samples were being
collected, and visited each of the laboratories performing the
analyses at least once during the period that tests were being
performed. The objectives of these visits were to assure that
the activities were being performed properly and according to
schedule, and that communications between the various parts of
the Project were being used to document problems and their
solutions. Contract Work Assignments were issued prior to
Project inception, and monthly status reports from the prime
contractors were received by the Project Officer. A master
status report was maintained by CENTEC. This report showed the
samples collected and the tests scheduled. As data were reported
by the laboratories, the master schedule was expanded to include
the data status. The master status was quality assured by the
Sample Control Center by cross comparison of results received
with sample fractions collected and tests performed by the
laboratories.
Sampling Quality Assurance/Quality Control
Summary of Sampling QA/QC
The objectives of the sampling portion of the Project
were to collect technical information and samples at sample
54
-------
sites. All sampling activities were conducted in accordance with
the Sampling Plan and Sampling Quality Assurance/Quality Control
Plan given in Appendix G. This QA/QC plan has been specifically
designed for this Project.
Sample Control and Tracking
The system for sample tracking is explained in detail
in Appendix E. The tracking system is quality assured by
correlation of sample numbers that are required to appear on the
samples, Traffic Reports, Laboratory Chronicles, data sheets,
magnetic tapes, magnetic disks, and all other entities relating
to each sample.
Corrective Actions
Specifically addressed in Appendix G is a section
designed to anticipate onsite variations in sample collection
procedures. This section, entitled "Corrective Action," includes
a prioritized list of sampling methods and equipment to be used
for a given circumstance. Also, conditions are given that would
warrant the relocation of selected sample points or the cancel-
lation of sampling at a specific site. If any changes from
standard field protocols were necessary, they are documented in a
specific sampling report in Appendix C.
System Audits
System audits, as described in Appendix G, were
conducted by EPA in the field at specific site locations. Field
55
-------
practices were examined by the EPA representative. Table 13
lists the sites where EPA audited sampling activities.
Analytical Quality Assurance/Quality Control
Sample Testing
Prior to contract start-up, laboratories under contract
to ITD are required to have in place an extensive quality
assurance program which will guarantee that the data produced
will meet Agency requirements. The details of the QA
requirements are contained in contracts with the laboratories.
Copies of all analytical contracts issued by ITD are on file at
the Sample Control Center and in the EPA Contracts offices. ITD
and the Sample Control Center perform periodic laboratory audits
to assure that all requirements are being met.
In addition to contractual requirements and periodic
audits, quality assurance is an integral part of the analytical
methods used by ITD. The methods used for this Project are given
in Appendix D. Minimum QA requirements in these methods are 10
percent duplicates, matrix spikes (spikes into samples), and
blanks. The entities used for analytical quality assurance are
listed.
(1) Matrix spikes
Implemented by: (a) measuring the background concentration
of the analyte in a portion of the sample, (b) preparing a
standard solution of the analyte which, when spiked into the
sample, will produce a concentration that is one to five
times the background concentration, (c) adding the standard
solution to a portion of the sample to produce this
concentration, and (d) analyzing the sample.
56
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Table 13. EPA System Audits of Field Sampling Activities
Operating Company
Separation & Filtration
Enterprise, Inc.
FMP Operating Co.
Sun Exploration &
Production Co.
Westland Oil
Development Corp.
Mobil Oil
Basin Disposal Inc.
Amoco Production Co.
Cities Service
Diamond Shamrock
Shell California
Production, Inc.
McFarland Energy, Inc.
Standard Alaska
Production Co.
Standard Alaska Co.
ARCO Alaska, Inc.
Marathon Oil Co.
Union Oil of CA
Scott Oil Co.
Site Location Date (1986)
EPA Rep.
AL
LA
LA
LA
LA
NM
NM
NM
WY
CA
CA
AK
AK
AK
AK
AK
WV
June 12-13
June 14
June 16
June 17
June 17
June 25
June 26
June 27
July 13
July 15
July 16
August 1
August 2
August 3
August 7
August 8
August 19
S.
S.
S.
B.
S.
B.
S.
S.
S.
S.
S.
B.
B.
S.
S.
S.
S.
S.
S.
de Nagy
de Nagy
de Nagy
Telliard
de Nagy
Telliard
de Nagy
de Nagy
de Nagy
de Nagy
de Nagy
Telliard
Telliard
de Nagy
de Nagy
de Nagy
de Nagy
de Nagy
de Nagy
57
-------
Quantities measured: recovery, expressed as percent; and
after sufficient data have been accumulated, precision,
expressed as relative standard deviation (coefficient of
variation).
Purposes: (1) to determine if method is applicable to
sample being tested, (2) to permit comparison between
samples, (3) to evaluate the nature of the sample, (4) to
permit generation of statements of data quality (precision
and accuracy) for samples analyzed by the laboratory, (5) to
determine if sample needs to be diluted to bring recovery
within range considered normal for the sample, and (6) to
permit separation of error sources between (a) the sample
and (b) the laboratory.
Frequency: (a) non-isotope dilution analyses: every 10th
sample (10% QA); (b) isotope dilution analyses: every sample
(100% QA).
(2) Periodic spikes into a reference matrix
Implemented by: adding a known amount(s) of the analyte(s)
of interest to a sample with known characteristics. Reagent
water (water in which the analytes of interest or
interfering compounds are not present) is usually used as
the reference matrix.
Quantities measured: recovery and precision.
Purposes: (1) to assess laboratory performance, (2) to
permit generation of statements of data quality for the
laboratory, and (3) to permit separation of error sources
between (a) the sample and (b) the laboratory.
Frequency: every sample set (samples started through the
analytical process at the same time.)
(3) Analysis of blanks
Implemented by: analyzing reagent water or other material
which does not contain the analytes of interest or
interfering compounds.
Quantity measured: analytes of interest; test is failed or
data must be qualified if any are detected.
Purpose: to assure that the analysis system is free from
interferences so that analytes detected are known to
originate in samples only.
Frequency: every sample set.
58
-------
(4) Verification of instrument calibration
Implemented by: injecting a standard containing the
analyte(s) of interest.
Quantity measured: calibration factor (usually response as
unit height or area relative to amount or concentration
injected); response factor (height or area relative to
amount or concentration injected and relative to an internal
standard); relative response for isotope dilution (height or
area relative to amount or concentration injected and
relative to a stable isotopically labeled analogue of the
compound of interest). (The methods in Appendix D describe
how calibration is verified for each analytical system
used.)
Purpose: to assure that the instrument remains in
calibration.
Frequency: every 24 hours minimum; most tests, every 12
hours; isotope dilution, every 8 hours.
(5) Dilution of a sample when the concentration of analyte
exceeds the analytical range of the analysis system
Implemented by: requiring dilution each time an analyte
exceeds the analytical range.
Quantity measured: concentration or amount.
Purpose: to assure that the concentration of every analyte
will be measured accurately.
Frequency: every occurrence.
(6) In isotope dilution analyses, dilution of a sample when
the recovery of a labeled compound is not in the range
considered normal for the analysis
Implemented by: requiring dilution each occurrence.
Quantity measured: labeled compound recovery.
Purpose: to assure that the method works on the sample.
Frequency: every occurrence.
Data Reporting
The reporting of analytical data was quality assured by
the crosschecking of sample numbers across all data collection
59
-------
and reporting activities. Data were required to be present for
every fraction that was analyzed of every sample. As data were
received, the tracking file at the Sample Control Center was
updated with data status. For late or missing data, the Center
telephoned the laboratories to determine when the data would be
provided. The data quality objective for completeness greater
than 95 percent was met.
Non-compliances and Corrective Actions
For organic analytes tested using isotope dilution
methods, non-compliances occurred in less than 2 percent of the
analyses performed. Non-compliances for these analyses are on
record in the data base in the NCC IBM mainframe. These
non-compliances were instances in which the labeled compound
recovery or recovery of a standard did not fall within the range
specified in the method. In nearly every instance, the
non-compliant data were associated with a pollutant which was not
detected in the affected sample, and the non-compliances were
deemed of no adverse consequence.
Duplicates. As a check on sampling and laboratory
reproducibility, duplicate samples were collected at several
sites. In reviewing the Traffic Reports for these samples, the
QA Officer at the Sample Control Center discovered that the
samples had been marked as duplicates and, therefore, were not
blind to the laboratory. As a result, tests were eliminated for
the initial sets of duplicate samples. The marking of duplicates
60
-------
was eliminated as a corrective action, and duplicates collected
in later stages of sampling were analyzed blind, as intended.
Holding Times. Laboratory tests exceeded the
requirement that the pH of the sample be taken immediately;
therefore, results for pH should be used as an indicator only.
Similarly, holding times for oil and grease tests were exceeded
for a number of samples and the data should be similarly
qualified. For the samples received from Alaska, holding times
were exceeded in all cases where holding times are less than 7
days because of delays in sample shipping. The data for the
Alaska sites were included in the data base because the exceeding
of holding times was unavoidable and Project Management believes
that data from samples for which holding times were exceeded are
better than no data at all. For all other cases in which a
holding time was exceeded (estimated to be less than 1 percent of
the total number of samples), the results were not used.
Contamination of Blanks. For organic analyses, field
blanks were found to be contaminated with methylene chloride and
acetone. The source of contamination was traced to bottle
cleaning and sampling procedures. For semi-volatile organic
samples, bottles were rinsed with methylene chloride and/or
acetone prior to shipment to the site. In some instances, grab
samples were collected and/or composited in these bottles, and
samples were then transferred to bottles used for analysis of
volatiles. This process was not discovered until late in the
61
-------
Project. The results for acetone and methylene chloride should
therefore be considered invalid.
Performance and System Audits
The laboratory analysis and statistical analysis were
audited by the Project QA Officer and/or the Sample Control
Center during the time samples were being collected and analyzed,
and the data were being analyzed. A summary of the audits
performed is given in Table 14.
62
-------
Table 14. Summary of Performance and System Audits
Sampling and Laboratory Audits by Project Personnel
Laboratory Date By Documentation
S-CUBED 7/86 Telliard
CENTEC
Analytical
Services 5/86 Telliard
ITD
ITD
Laboratory Audits in Support of Superfund and OSW Activities
Laboratory Date By Documentation
S-CUBED
CENTEC
Analytical
Services
3/86 Richardson
4/86 "Bottrell
5/86 White
OSW
Superfund CLP
Superfund CLP
Laboratory Performance Evaluations
Laboratory Date Organization
CENTEC
Analytical
Services
Documentation
S-CUBED 2/86
3/86
5/86
5/86
6/86
6/86
8/86
9/86
10/86
OSW
CA DOHS
Superfund CLP
OSW
Superfund CLP
OSW
Superfund CLP
State of VA
Superfund CLP
OSW
CA DOHS
EMSL-LV
OSW
EMSL-LV
OSW
EMSL-LV
State of VA
EMSL-LV
2/86 OSW EMSL-LV
Superfund CLP EMSL-LV
5/86 OSW EMSL-LV
Superfund CLP EMSL-LV
8/86 OSW EMSL-LV
Superfund CLP EMSL-LV
10/86 OSW EMSL-LV
Superfund CLP EMSL-LV
63
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64
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RESULTS AND CONCLUSIONS
This section gives data summaries in the form of tables.
Appendix A gives a complete data listing for the Project. The
data in Appendix A are ordered by decreasing concentration for
each analyte within a given sample point location (e.g., pit,
centralized treatment effluent), sample phase (liquid or solid),
and extraction method (direct or TCLP).
Statistical Analysis
Summary statistics were computed for each sampling category,
including number of samples analyzed, number with each compound
detected, and the minimum, mean, and maximum concentrations of
the analyte for the sampling category. Table 15 shows these
values for each category (Central Pit; Central Treatment),
Location within the Site (the Pit; Influent; Effluent; Tank), the
Sample Phase (Liquid; Solid), and the Sample Extraction Technique
(Direct; TCLP). These results are given as "Site/Location/
Phase/Extract" data because each of these variables has been
treated separately.
Calculation of Volume-Weighted Mean Concentration Estimates
In order to produce estimated national mean
concentration estimates which are compatible with estimated waste
volume figures and that could be appropriately multiplied by
waste volumes to obtain pollutant loadings, the mean
concentrations reported are weighted by the appropriate waste
65
-------
Cmpdtt
Cmpd Name
Table 15
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Central Pit » Location=Central Pit > Phase=Liquid
N Detected Prop. Detect
a\
1-001
1-002
1-003
1-004
1-005
1-006
1-007
1-009
1-010
1-011
1-012
1-013
1-014
65S50
67641
71432
75092
75150
78933
84742
85018
86737
91203
91576
92524
95487
S8S62
99876
100414
100516
105679
106445
1C3101
108883
108952
112403
112958
117817
124185
129000
132649
132650
142621
544763
593453
629594
629970
630013
630024
638686
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Hydrogen i on
Oil and grease
Residue> non-filterable
Residue, filterable
Specific conductivity
Total organic carbon
Ignitabili ty
Corrosivity
Benzoic acid
2-Propanone
Benzene
Methylene chloride
Carbon disulfide
2-Butanone
Di-n-butyl phthalate
Phenanthrene
Fluorene
Naphthalene
2-Me thyInaphthalene
Biphenyl
o-Cresol
Acetophenone
p-Cymene
Ethylbenzene
Benzyl alcohol
2 > 4-D i methyIphenol
p-Cresol
4-Methyl-2-pentanone
Toluene
Phenol
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalata
n-Decane
Pyrene
Dibenzofuran
Dibenzothiophenc
hexanoic acid
n-Hexadacane
n-Octadecane
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
n-Triacontane
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
2
3
2
4
1
1
1
2
2
3
3
2
2
1
3
1
1
1
2
2
2
1
4
4
2
3
1
1
2
1
4
4
4
4
4
.0.00
.000
.000
.000
.000
.000
.000
1.000
1.000
1.000
1.000
1.000
1.000
0.500
0.750
0.500
1.000
0.250
0.250
0.250
0.500
0.500
0.750
0.750
0.500
0.500
0.250
0.750
0.250
0.250
0.250
0.500
0.500
0.500
0.250
1.000
1.000
0.500
0.750
0.250
0.250
0.500
0.250
1.000
1.000
1.000
1.000
1.000
0.750
0.500
i tract— u
linimum
0.3
11.0
1620.0
2280.0
1.1
5.7
8.0
192.0
2600.0
8000.0
27.0
200.0
5.7
-------
Summary Statistics for Field Sampling and Analysis Report
Exploration* Development* and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdtt
646311
832699
1730376
7429905
7439896
7439921
7439932
7439954
7439965
7439987
7440020
7440097
744C213
7440224
7440235
7440246
7440315
7440326
jy, 7440382
-g 7440393
7440417
7440423
7440439
7440451
7440473
7440484
7440508
7440622
7440655
7440666
7440702
7664417
7704349
7723140
16984488
CmpdU
1-001
1-002
1-003
1-004
1-005
1-006
1-007
1-008
1-012
si Te=uentrai Pit , Loc
Cmpd Name
n-Tctracosane
1 -Methylphenanthrene
1 -Me thy 1 f luor ene
Aluminum
Iron
Lead
Lithium
Magnesium
Manganese
Molybdenum
Nickel
Potassium
Silicon
Silver
Soclium
Strontium
Tin
Titanium
Arsenic
Barium
Beryllium
Boron
Cadmium
Cerium
Chromium
Cobalt
Copper
Vanadium
Yttrium
Zinc
Calcium
Ammonia
Sulfur
Phosphorus (black, white, red, yell
Fluoride
Cmpd Name
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Hydrogen ion
Oil and grease
Residue, total
Total organic carbon
4
4
ft
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Location=Central Pit
N Detected
3
3
3
3
3
3
3
1 k
>d
4
1
1
4
4
2
3
4
4
2
3
3
4
2
4
4
4
3
2
4
1
4
2
2
2
1
2
2
1
4
4
4
4
2
4
'it
id
3
3
3
3
3
3
3
1
, ruaaa— b. 1 i^ui u
Prop. Detect
1.000
0.250
0.250
1.000
1.000
0.500
0.750
1.000
1.000
0.500
0.750
0.750
1.000
0.500
1.000
1.000
1.000
0.750
0.500
1.000
0.250
1.000
0.500
0.500
0.500
0.250
0.500
0.500
0.250
1.000
1.000
1.000
1.000
0.500
1.000
, Phase— Solid
Prop. Detect
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
, CAir«it;i~u
Minimum
17.6
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development* and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Central Pit , Location=Central Pit , Phase=Solid
Cmpdtt
Cmpd Name
N Detected Prop. Detect
CO
1-013
1-014
1-015
1-016
1_331
67641
71432
75092
78933
84742
85016
91203
91576
92524
99876
100414
106445
108101
108883
112403
112953
117817
124185
127184
544763
593453
629594
629970
630013
630024
63868S
646311
832699
1730376
1746016
3268879
7429905
7439896
7439921
7439954
7439S65
7439987
7440020
7440097
7440213
7440224
7440235
7440246
7440315
7440326
Ignitability
Corrosivi ty
Reactivity
Oil and Grease (Retort)
Tetrachlorodi benzo-p-dioxi ns
2-Propanone
Benzene
Kethylene chloride
2-Butanone
Di-n-butyl phthalate
Phenanthrene
Naphthalene
2-Mcthylnaphthalene
Biphenyl
p-Cymene
Ethylbenzene
p-Cresol
4-Methyl-2-pentanone
Toluene
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
n-Decane
Tetrachlorethene
n-Hexadecane
n-Octadecane
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
n-Triacontane
n-Tetracosane
1 -tlethy Iphenanthrene
1-Methylfluorene
2,31718-Tetrachlorodi benzo-p-di oxi n
Octachlorodi benzo-p-di oxi ns
Aluminum
Iron
Lead
Magnes i urn
Manganese
Molybdenum
Nickel
Potassium
Silicon
Silver
Sodium
Strontium
Tin
Ti tamum
3
3
3
3
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
2
1
2
1
3
3
2
3
1
3
3
3
3
3
2
2
3
2
1
1
2
3
3
3
3
3
1
2
1
2
1
3
2
000
000
0.667
1.000
0.500
1.000
0.333
0.333
0.333
0.333
0.333
0.333
0.667
0.333
0.333
0.667
0.333
0.667
0.333
1.000
1.000
0.667
1.000
0.333
1.000
1.000
1.000
1.000
1.000
0.667
0.667
1.000
0.667
0.333
0.500
1.000
1.000
1.000
1.000
1.000
1.000
0.333
0.667
0.333
0.667
0.333
1.000
0.667
0.667
1.000
:xir«ci— ui
Minimum
200.0
7.2
-------
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Central Pit
=Central
Phase=Solid
CmpdB
Cmpd Name
N Detected Prop. Detect
vo
7440382 Arsenic
7440393 Barium
7440428 Boron
7440439 Cadmium
7440473 Chromium
7440508 Copper
7440622 Vanadium
7440655 Yttrium
7440666 Zinc
7440702 Calcium
7664417 Ammonia
7704349 Sulfur
7723140 Phosphorus (black, white, red» yell
1698448S Fluoride
13496258 Sulfide
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
1
3
2
2
3
3
3
1
3
3
2
3
2
3
2
0.333
1.000
0.667
0.667
1.000
1.000
1.000
0.333
1.000
1.000
0.667
1.000
0.667
1.000
0.667
Site=Central Pit > Location=Central Pit , Phase=Solid
Cmpd Name
N Detected Prop. Detect
67641
71432
75092
75150
79005
91203
91576
92524
100414
107062
108101
108383
108952
112403
112958
117817
544763
593453
629594
629970
7429905
7439896
743S921
7439954
7439965
7439987
744CC20
7440097
7440213
2-Propanone
Benzene
Methylene chloride
Carbon disulfide
1.1,2-Tri chloroethana
Naphthalene
2-Methylnaphthalene
Biphenyl
Ethylbenzene
1,2-Dichloroethane
4-Methyl-2-pentanone
Toluene
Phenol
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
n-Hexadecane
n-Octadeeane
n-Tetrac'ecane
n-Docosane
Aluminum
Iron
Lead
Magnesium
Manganese
Molybdenum
Nickel
Potassium
Silicon
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
0.667
0.667
0.667
0.333
0.333
0.333
1.000
0.333
0.667
0.333
0.667
0.667
.333
.333
.333
.333
.333
.333
.333
.333
.000
.000
.333
.000
.000
0.667
0.333
0.333
0.667
:x^r«CT-ui
Minimum
-------
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-------
Summary Statistics for Field Sampling and Analysis Report
Exploration! Development* and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Central
Cmpdtt
108883
108907
108952
112403
112958
117817
124185
142621
544763
593453
629594
638686
646311
7439896
7439932
7439954
7439965
7439987
7440097
7440213
7440224
7440235
7440246
7440315
7440360
7440393
7440428
7440473
7440622
7440666
7440702
7664417
7704349
7723140
16984488
Cmpd Name
Toluene
Chlorobenzene
Phenol
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
n-Dccane
hexanoic acid
n-Hexadecane
n-Octadecane
n-Tetradecane
n-Triacontane
n-Tetracosane
Iron
Lithium
Magnes i urn
Manganese
Molybdenum
Potassium
Silicon
SiIver
Sodium
Strontium
Tin
Ant i mony
Barium
Boron
Chromium
Vanadium
Zinc
Calcium
Ammonia
Sulfur
Phosphorus (black, white, red, yell
Fluoride
Site=Central Treatment ,
Cmpdft
Cmpd Name
1-001
1-002
1-003
1-004
1-OC5
1-006
1-C07
1-008
1-012
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Cxycen Demand
Ni trate/ni tri te
Hydrogen i on
Oil and grease
Residue, total
Total organic carbon
11 1
N
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
B
T 1
N
3
3
3
3
3
3
3
1
on-cTTiuent , rn<
Detected Prop.
2
1
3
2
1
2
2
1
2
2
2
2
2
2
2
3
2
2
2
2
1
3
3
2
1
3
3
3
1
3
3
3
3
1
3
-in— P-f -f 1 tion-f PK-
3n CTTJLUCm y rll<
Detected Prop.
3
3
3
3
1
3
3
1
ase-Liqui
Detect
0.667
0.333
1.000
0.667
0.333
0.667
0.667
0.333
0.667
0.667
0.667
0.667
0.667
0.667
0.667
1.000
0.667
0.667
0.667
0.667
0.333
.000
.000
.667
.333
.000
.000
.000
.333
.000
.000
.000
.000
0.333
1.000
a t cxTraci-i
Minimum
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration! Development* and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Central Treatment > Location=Effluent , Phase=Solid
Crcpdft
Cmpd Name
N Detected Prop. Detect
-J
to
1-013
1-014
1-015
1-016
1 331
67641
71432
75092
84742
85018
91203
91576
92524
99876
100414
100425
108101
108883
112403
112958
117817
124185
132650
544763
593453
629594
629970
630013
630024
638686
646311
832699
1746016
3268879
7429905
7439S96
7439921
7439934
7439965
7440020
7440213
7440224
7440235
7440246
7440315
7440326
7440382
7440393
7440428
7440439
Ignitability
Corrosivity
Reactivity
Oil and Grease (Retort)
Tetrachlorodi benzo-p-di oxi ns
2-Propanone
Benzene
Methylene chloride
Di-n-butyl phthalate
Phenanthrene
Naphthalene
2-Methylnaphthalene
Biphenyl
p-Cymene
Ethylbenzene
Styrene
4-Mothyl-2-pentanone
Toluene
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
n-Decane
D i benzothi ophene
n-Hexadecane
n-Octadecane
n-Tetradecane
n-Docosane
n-Kcxacosane
n-Octacosane
n-Triacontane
n-Tetracosane
1-Methylphenanthrene
2,3 > 7 >8-Tetrachlorodi benzo-p-di oxi n
Octachlorodi benzo-p-di oxins
Aluminum
Iron
Lead
Magnesium
Manganese
Nickel
Silicon
Silver
Sodium
Strontium
Tin
Titanium
Arsenic
Barium
Boron
Cadmium
3
3
3
3
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
1
2
3
2
2
3
2
1
2
1
1
1
3
3
2
3
3
3
3
1
3
3
3
3
3
3
.000
.000
.333
.000
.333
.333
.333
0.333
0.333
0.333
0.333
0.333
0.333
0.333
0.333
0.333
0.333
0.333
0.667
0.333
0.667
0.333
0.667
1.000
0.667
0.667
1.000
0.667
0.333
0.667
0.333
0.333
0.333
.000
.000
0.667
1.000
1.000
.000
.000
0.333
.000
.000
.000
1.000
1.000
1.000
0.667
0.667
ixiraci-u
linimum
200.0
6.7
-------
Site=i
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Treatment
Cmpdt
Cmpd Name
7440473 Chromium
7440508 Copper
7440622 Vanadium
7440666 Zinc
7440702 Calcium
7664417 Ammonia
7704349 Sulfur
7723140 Phosphorus (black, white, red, yell
1698448S Fluoride
18496258 Sulfide
Si te=Central Treatment
Cmpdtt
Cmpd Name
67641
71432
71556
75092
75150
91203
91576
99876
100414
103101
1C8883
117817
7439896
7439954
7439965
7440213
7440235
7440246
7440315
7440393
7440428
7440666
7440702
7704349
7723140
7782492
2-Propanone
Benzene
1,1,1-Trichloroethane
Methylene chloride
Carbon disulfide
Naphthalene
2-Methylnaphthalene
p-Cymene
Ethylbenzene
4-Methyl-2-pentanone
Toluene
bis(2-Ethylhexyl) phthalate
Iron
Magnesium
Manganese
Silicon
Sodium
Strontium
Tin
Barium
Boron
Zinc
Calcium
Sulfur
Phosphorus (black, white, red,
Selenium
yell
,UW«I I 1
N
3
3
3
3
3
3
3
3
3
3
wn-c i i j.uen( , rn<
Detected Prop.
2
2
2
3
3
3
2
2
3
1
Locat i on=Ef fluent , P\
N Detected Prop.
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
1
1
3
1
1
2
1
1
1
1
2
1
3
2
3
3
3
1
3
2
2
3
3
1
1
dse-ooii a ;
Detect
0.667
0.667
0.667
1.000
1.000
1.000
0.667
0.667
1.000
0.333
•taeaS^nl 5 t4
laac~wwJL I LI
Detect
0.667
0.333
0.333
1.000
0.333
0.333
0.667
0.333
0.333
0.333
0.333
0.667
0.333
1.000
0.667
1.000
1.000
1.000
0.333
1.000
0.667
0.667
1.000
1.000
0.333
0.333
» cxiraci-u
Minimum
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdtf
Site=Cer»tral Treatment , Location=Influent , Phase=Liquid
Cmpd Name N Detected Prop. Detect
1-001
1-002
1-003
1-004
1-005
1-006
1-007
1-009
1-010
1-011
1-012
1-013
1-014
67641
71432
71556
75092
75274
78933
79016
85018
91203
91576
95487
99876
105679
106445
108101
10SS83
108907
108952
112403
112953
124185
142621
544763
593453
629594
630013
638686
646311
832699
7439896
7439932
7439954
7439965
7439987
7440097
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Cheaical Oxygen Demand
Nitrate/nitrite
Hydrogen ion
Oil and grease
Residue, non-filterable
Residue, filterable
Specific conductivity
Total organic carbon
Ignitability
Corrosivity
2-Propanone
Benzene
1,1,1-Trichloroethane
Methylene chloride
Bromod i chloromethane
2-Butanone
Tr i chloroethene
Phenanthrene
Naphthalene
2-Methylnaphthalene
o-Cresol
p-Cymene
2,4-0 i methylphenol
p-Cresol
4-Methyl-2-pentanone
Toluene
Chlorobenzene
Phenol
n-Dodecane
n-Eicosane
n-Decane
hexanoic acid
n-Hexadecane
n-Octadecane
n-Tetradecane
n-Hcxacosane
n-Triacontane
n-Tetracosane
1-Methylphenanthrene
Iron
Lithium
Magnesium
Manganese
Molybdenum
Potassium
§11i con
ilver
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
1
2
2
2
2
2
2
2
2
2
1
1
2
1
2
1
1
1
1
2
1
2
1
1
2
1
2
2
2
2
1
2
1
2
2
1
2
1
2
2
2
2
2
2
le-ui qui
Jetect
1.000
0.500
1.000
1.000
0.500
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
0.500
0.500
1.000
0.500
1.000
0.500
0.500
0.500
0.500
1.000
0.500
1.000
0.500
0.500
1.000
0.500
1.000
1.000
1.000
1.000
0.500
1.000
0.500
1.000
1.000
0.500
1.000
0.500
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
a f CAiraci
Minimum
8.0
-------
Summary Statistics for Field Sampling and Analysis Report
Exploration> Development> and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdtt
7440235
7440246
7440315
7440393
7440423
7440473
7440666
7440702
7664417
7704349
7723140
16984483
Cmpdtt
1-001
^j 1-CC2
Ui 1-003
1-004
1-005
1-C26
1-007
1-008
1-012
1-013
1-014
1-015
1-016
67641
75092
78933
91203
91576
100414
100425
108101
108883
112403
11295S
117817
124185
544763
593453
629594
629970
630013
630024
oiTe-i-enira
Cmpd Name
Sodium
Strontium
Tin
Barium
Boron
Chromium
Zinc
Calcium
Ammonia
Sulfur
Phosphorus (black, whit
Fluoride
Cmpd Name
Total volatile organic
i treatment > LocaTion-xnTiuenT
N Detected
2 2
2 2
2 2
2 2
2 2
2 2
2 1
2 2
2 2
2 2
e, red, yell 2 2
2 2
1 Treatment > Location=Inf luent
N Detected
carbon 1 1
Biochemical Oxygen Demand 1 1
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Hydrogen i on
Oil and grease
Residua, total
Total organic carbon
Ignitabili ty
Corrosivity
Reactivity
Oil and Grease (Retort)
2-Propanone
Methylone chloride
2 -But a none
Naphthalene
2-Mcthylnaphthalene
Ethylbenzene
Styrene
4-Methyl-2-pentanone
Toluene
n-Dodecane
n-Eicosane
1 1
1 1
1 1
1 1
1 1
bis(2-Ethylhexyl) phthalate
n-Decana
n-Hexadscane
n-Octadecane
n-Tetradecane
n-Docosane
n-Hsxacosane
n-Octacosane
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1 1
1 1
i i
> rnase-Liquic
Prop. Detect
1
1
1
1
1
1
0
1
1
1
1
1
.000
.000
.000
.000
.000
.000
.500
.000
.000
.000
.000
.000
, Phase=Solid
Prop. Detect
1
1
1
1
1
1
.000
.000
.000
.000
.coo
.000
1.000
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
i
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
i f extract-
Minimum
3590000.0
81400.. 0
836.0
3880 . 0
1250.0
86.0
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdtf
638686
646311
7429905
7439896
7439921
7439954
7439965
7440020
7440235
7440326
7440393
7440423
7440439
7440473
744050S
7440666
7440702
7664417
16934483
^1 18496258
Cmpdft
75092
108101
630013
7439896
7439954
7439965
7440020
7440235
7440315
7440332
7440393
7440428
7440473
744C666
7440702
31 Te-uenTrai irea^menT >
Cmpd Name
n-Triacontane
n-Tetracosane
Aluminum
Iron
Lead
Kagnes i urn
Manganese
Nickel
Sodium
Titanium
Barium
Boron
Cadmium
Chromi urn
Copper
Zinc
Calcium
Ammoni a
Fluoride
Sulfide
.
Cmpd Name
Methylene chloride
4-Methyl-2-pentanone
n-Hcxacosane
Iron
Magnes i urn
Manganese
Nickel
Sodium
Tin
Arsenic
Barium
Boron
Chromium
Zinc
Calcium
LOCaTl
N
1
1
1
1
1
1
1
on=inTiuen
Detected
1
1
1
1
1
1
1
1
1
Prop. Detect
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
» bxtract
Minimum
7073.5
3881.2
7780.0
16600.0
102.0
5980.0
496.0
38.0
9100.0
124.0
25100.0
40.0
4.0
169.0
30.0
688.0
60900.0
56.0
244.0
5830.0
u
Locat i on=Inf luent t Pn&se~Solid
N Detected Prop. Detect
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1.000
1.000
1.000
1.000
1.000
1.000
1.000
> CKfc^cIC
Minimum
27.1
27.4
64.4
711.0
11800.0
2870.0
278.0
1.000 1480000.0
1.000
1.000
1.000
1.000
1.000
1.000
1.000
266.0
23.0
2610.0
184.0
107.0
1020.0
784000.0
=uirect
Wtd. Mean
7073.5
3881.2
7780.0
16600.0
102.0
5980.0
496.0
38.0
9100.0
124.0
25100.0
40.0
4.0
169.0
30.0
688.0
60900.0
56.0
244.0
5830.0
L— Tf*l D
Wtd. Mean
27.1
27.4
64.4
711.0
11800.0
2870.0
278.0
1480000.0
266.0
23.0
2610.0
184.0
107.0
1020.0
784000.0
Maximum
7073.5
3881.2
7780 . 0
16600.0
102.0
5980.0
496.0
38.0
9100.0
124.0
25100.0
40.0
4.0
169.0
30.0
688.0
60900.0
56.0
244.0
5830.0
Maximum
27.1
27.4
64.4
711.0
11800.0
2870.0
278.0
1480000.0
266.0
23.0
2610.0
184.0
107.0
1020.0
784000.0
Units
ug/kg
ug/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
-------
summary statistics ror Meld sampling and Analysis Report
Exploration* Development* and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Central Treatment , Location=Tank » Phase=
CrapdS
Crapd Name
N Detected Prop. Detect
1-001
1-002
1-003
1-004
1-006
1-007
1-008
1-012
1-013
1-014
1-015
1-016
67641
71432
71556
75274
78933
79005
85018
86737
91203
91576
99876
100414
107131
108883
108907
112403
112958
117817
124185
544763
593453
629594
629970
630013
630024
638686
646311
832699
1730376
7429905
7439896
7439954
7439965
7439976
7440235
7440246
7440393
7440473
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Hydrogen ion
Oil and grease
Residuei total
Total organic carbon
Ignitability
Corrosivity
Reactivity
Oil and Grease (Retort)
2-Propanone
Benzene
1f1>1-Tri chloroethane
Bromodi chloromethane
2-Butanone
1)1,2-Tri chloroethane
Phenanthrene
Fluorene
Naphthalene
2-Methylnaphthalene
p-Cymene
Ethylbenzene
Acrylonitrile
Toluene
Chlorobenzene
n-Oodecane
n-Eicosane
bis(2-Ethylhexyl) phthalata
n-Decane
n-Hexadecane
n-Octadecane
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
n-Triacontane
n-Tetracosane
1-Methylphenanthrene
1-Methylfluorene
Aluminum
Iron
Magnesium
Manganese
Mercury
Sodium
Strontium
Barium
Chromium
ooxia ]
etect
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
0.500
1.000
0.500
0.500
0.500
0.500
0.500
0.500
1.000
1.000
0.500
0.500
0.500
0.500
0.500
0.500
0.500
1.000
1.000
1.000
1.000
1.000
1.000
0.500
1.000
1.000
1.000
1.000
1.000
0.500
0.500
0.500
1.000
0.500
1.000
0.500
1.000
0.5CO
0.500
0.500
Minimum
0.2
1760.0
57300.0
688.0
2.0
252000.0
65.4
306000.0
200.0
2.0
-------
(Cont'd)
Ling and Analy
Table 15
Summary Statistics for Field Sampling and Analysis Report
Exploration! Development) and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
CmpdB
7440508
7440666
7440702
7664417
7704349
7723140
16984488
18496253
si Te-uentrai ireaTmenT , Location^ ian* , rnase=3oiia , cxiracT=uirecT
Cmpd Name N Detected Prop. Detect Minimum Wtd. Mean
Copper
Zinc
Calcium
Ammonia
Sulfur
Phosphorus (black, uhite, red,
Fluoride
Sulfide
2
2
2
2
2
yell 2
2
Z
1
2
2
1
2
1
2
1
Cmpd*
67641
71432
91203
91576
100414
-j 108101
00 108883
117817
7429905
7439896
7439954
7439965
7440235
7440246
7440393
7440428
7440666
7440702
7704349
7723140
CmpdS
1-008
67641
75092
78933
84662
85018
91576
100414
108883
112403
Cmpd Name N Detected
2-Propanone
Benzene
Naphthalene
2-Methylnaphthalene
Ethylbenzene
4-Methyl-2-pentanone
Toluene
bis(2-Ethylhexyl) phthalate
Aluminum
Iron
Magnes i um
Manganese
Sodium
Strontium
Barium
Boron
Zinc
Calcium
Sulfur
Phosphorus (black, uhite, red,
Cmpd Name
Residue, total
2-Propanone
Methylene chloride
2-3utanone
Di ethyl phthalate
Phenanthrene
2-Methylnaphthalene
Ethylbenzene
Toluene
n-Oodecane
I
I
1
1
1
1
1
1
2
2
2
Z
Z
Z
Z
z
z
z
z
yell 2
1
1
1
1
1
1
1
1
1
2
1
2
2
1
2
1
2
2
2
1
Location=Drilling Mud ,
N
1
2
2
2
2
2
2
2
2
2
Detected
1
1
1
1
0.500
1.000
1.000
0.500
1.000
0.500
1.000
0.500
i Phase— Solid
Prop. Detect
.000
.000
.000
.000
.000
.000
.000
1.000
0.500
1.000
0.500
1.000
1.000
0.500
. 1.000
0.500
1.000
1.000
1.000
0.500
Phase=Solid ,
Prop. Detect
1.000
0.679
0.679
0.679
0.679
0.679
0.679
0.679
0.679
0.679
-------
Summary Statistics tor Field Sampling and Analysis Report
Exploration> Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Drilling , Location=Drilling Mud
Cmpdtt
Cmpd Name
112953
117817
544763
593453
629594
7429905
7439896
7439954
7439965
7440213
7440235
7440326
7440393
7440473
7440503
7440666
7440702
7704349
7723140
n-Eicosane
bis(2-Ethylhexyl) phthalate
n-Hexadecane
n-Octadecane
n-Tetradecane
Aluminum
Iron
Magnesium
Manganese
Silicon
Sodi um
Titanium
Barium
Chromium
Copper
Zinc
Calcium
Sulfur
Phosphorus (black, white! red, yell
vo
Site=Drilling
CmpdS
Cmpd Name
67641
75092
91576
108101
117817
124185
7429905
7439896
7439954
7439965
7440020
7440213
7440235
7440393
7440428
7440473
7440666
7440702
7704349
2-Propanone
Methylene chloride
2-Methylnaphthalene
4-Methyl-2-pentanone
bis(2-Ethylhexyl) phthalate
n-Decane
Aluminum
Iron
Magnesium
Manganese
Nickel
Silicon
Sodium
Barium
Boron
Chromium
Zinc
Calcium
Sulfur
r i
N
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
x JL i ng nuu » ri
iose-oo.li a i
Detected Prop. Detect
1
1
1
1
1
Drilling Mud , 1
N
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
0.679
0.679
0.679
0.679
0.679
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
3hase=Solid
Detected Prop. Detect
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1.000
0.321
0.679
0.679
1.000
0.679
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
cxiraci— ui r
Minimum
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration! Development> and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Drilling , Location=Pit » Phase=Liquid , Ext
Cmpdtt
Cmpd Name
00
O
1-001
1-002
1-003
1-00*
1-005
1-006
1-007
1-003
1-009
1-010
1-011
1-012
1-013
1-015
57125
58902
65850
676*1
71*32
75092
75150
78591
78933
79005
8501S
86737
87865
91203
91576
919*1
9252*
98862
99876
100*1*
105679
107028
108101
108883
1C8907
108952
112*03
112958
117817
1178*0
123911
12*185
1326*9
1*2621
5**763
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Ni trate/ni tri te
Hydrogen i on
Oil and grease
Residua, total
Residuet non-filterable
Residuei filterable
Specific conductivity
Total organic carbon
Ignitability
Corrosivity
Reactivity
Cyanides (soluble salts and complex
2«31*!6-Tetrachlorophenol
Benzoic acid
2-Propanone
Benzene
Methylene chloride
Carbon disulfide
Isophorone
2-Butanone
1,1,2-Trichloroethane
Phenanthrene
Fluorene
Pentachlorophenol
Naphthalene
2-Methylnaphthalene
3!3'-D i chlorobenzidi ne
Biphenyl
Acetophenone
p-Cymene
Ethylbenzene
2,*-D i methylphenol
2-Propenal
*-Methyl-2-pentanone
Toluene
Chlorobenzene
Phenol
n-Dodscane
n-Eicosane
bis(2-Ethylhexyl) phthalate
Di-n-octyl phthalate
1>*-Dioxane
n-Decane
Dibenzofuran
hexanoic acid
n-Hexadecane
N Detected Prop. Detect
0.876
17
17
17
17
17
17
17
1
16
16
17
17
17
17
17
17
15
15
16
16
16
16
15
16
16
15
15
15
15
15
15
15
15
15
16
15
16
15
16
16
15
15
15
15
15
16
15
15
15
16
17
17
17
14
17
17
1
16
15
17
17
17
17
3
4
1
3
12
1
12
2
1
6
1
3
2
1
5
6
1
1
2
3
2
1
1
6
6
1
3
7
11
5
1
1
6
1
!0
.000
.000
.000
0.975
1.000
1.000
1.000
1.000
0.999
1.000
1.000
1.000
1.000
0.171
0.640
0.063
0.074
0.891
0.055
0.574
0.009
0.411
0.076
0.000
0.507
0.411
0.063
0.512
0.516
0.096
0.411
0.007
0.508
0.005
0.004
0.055
0.559
0.779
0.001
0.067
0.516
0.59*
0.110
0.000
0.003
0.516
0.001
.-u i reel
linimum
-------
Cmpdft
Cmpd Name
summary statistics Tor rieia sampling ana Analysis Kcport
Exploration, Development) and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Drilling > Location=Pit , Phase=Liquid > Extract=Direct
N Detected Prop. Detect
00
591786
593453
615225
629594
629970
630013
630024
638666
646311
832699
7429905
7439896
7439910
7439921
7439932
7439954
7439965
7439976
7439987
7440020
7440097
7440213
7440224
7440235
7440246
7440291
7440315
7440326
7440360
74403S2
7440393
7440417
7440428
7440439
7440451
7440473
7440484
7440508
7440622
7440655
7440666
7440699
7440702
7553562
7664417
7704349
7723140
16984488
18496258
2-Hexanone
n-Octadecane
2- ( methyl thio)benzothiazole
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
n-Triacontane
n-Tutracosane
1 -Methylphenanthrena
Alumi num
Iron
Lanthanum
Lead
Li thi um
Magnes i um
Manganese
Mercury
Molybdenum
Nickel
Potassium
Silicon
Silver
Sodium
Strontium
Thorium
Tin
Titanium
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Cerium
Chromium
Cobalt
Copper
Vanadium
Yttrium
Zinc
Bismuth
Calcium
Iodine
Ammonia
Sulfur
Phosphorus (black, white > red, yell
Fluoride
Sulfide
16
15
15
15
15
15
15
15
15
15
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
1
9
2
8
5
2
2
3
5
2
16
16
1
12
7
17
17
3
13
15
15
16
7
17
17
1
12
12
1
6
17
9
16
13
3
14
9
13
11
10
17
1
17
1
17
15
13
17
3
a > CXT
letect
0.003
0.536
0.004
0.527
0.520
0.507
0.507
0.108
0.520
0.507
0.998
0.998
0.000
0.364
0.323
1.000
1.000
0.162
0.406
0.997
0.998
0.974
0.205
1.000
1.000
0.000
0.404
0.871
0.003
0.251
1.000
0.384
0.998
0.406
0.329
0.406
0.384
0.404
0.402
0.363
1.000
0.002
1.000
0.002
1.000
0.976
0.995
1.000
0.171
racT-ui rec*
Minimum
-------
Cmpd*
1-001
1-002
1-003
1-004
1-005
1-006
1-007
1-008
1-012
1-013
1-014
1-015
1-016
1 331
65850
67641
71432
71556
75092
00 75150
to 78933
79005
79345
85018
86737
87865
91203
91576
92524
99376
100414
100425
108101
108883
108907
108952
112403
1129SS
117817
124185
127184
132650
544763
593453
629594
629970
630013
630024
638686
646311
Cmpd Name
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Cher.iical Oxygen Demand
Nitrate/nitrite
Hydrogen i on
Oil and grease
Residue i total
Total organic carbon
Ignitability
Corrosivi ty
Reactivity
Oil and Grease (Retort)
Tetrachlorodibenzo-p-dioxins
Benzoic acid
2-Propanone
Benzene
1,1,1 -Tr i chloroethane
Methylene chloride
Carbon disulfide
2-Butanone
1,1, 2-Tr i chloroethane
1,1,2, 2-Tetrachloroethanc
Phenanthrene
Fluorene
Pentachlorophenol
Naphthalene
2-Methylnaphthalene
Biphenyl
p-Cymene
Ethylbenzene
Styrene
4-Methyl-2-pentanone
Toluene
Chlorobenzene
Phenol
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
n-Decane
Tetrachlorethene
D i bcnzoth i ophene
n-Hexadecane
n-Octadecane
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
n-Triacontane
n-Tetracosane
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development! and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Drilling > Location-Pit , Phase=Solid » Extr
N Detected Prop. Detect
0.995
20
20
20
20
20
20
20
21
20
20
20
20
20
4
19
18
18
18
18
18
18
18
18
19
19
19
19
19
19
19
18
19
19
18
18
19
19
19
19
19
18
19
19
19
19
19
19
19
19
19
18
20
20
20
14
20
20
21
20
20
20
5
20
2
1
13
7
1
5
2
6
1
1
1
1
1
7
9
2
3
7
1
4
9
1
1
13
14
9
9
1
1
16
15
14
10
8
6
$
000
000
000
0.964
000
000
000
000
000
000
0.467
1.000
0.894
0.005
0.877
0.732
0.105
0.242
0.574
0.843
0.105
0.000
0.005
0.005
0.019
0.160
0.662
0.006
0.106
0.723
0.005
O.C34
0.848
0.032
0.005
0.802
0.927
0.816
0.634
0.000
O.CC5
0.932
0.932
0.806
0.911
0.882
0.816
0.855
0.877
•uirecT •
linimum
-------
Summary Statistics for Field Sampling and Analysis Report
Exploration) Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdtt
832699
1746016
7429905
7439896
7439921
7439954
7439965
7439976
7439987
7440020
7440097
7440213
7440224
7440235
7440246
7440315
7440326
7440382
7440393
00 7440417
U) 7440428
7440439
7440473
, 744048'+
7440508
7440622
7440655
7440666
7440702
7664417
7704349
7723140
16984488
18496258
Cmpdtt
59507
65850
67641
71432
75092
84662
84742
87865
HIE
3ite=uri inng . i
Cmpd Name
1 -Methylphenanthrene
2 , 3 > 7 , 8-Tetrachlorodi benzo-p-di oxi n
Alumi num
Iron
Lead
Magnesium
Manganese
Mercury
Molybdenum
Nickel
Potassium
Silicon
Silver
Sodium
Strontium
Tin
Titanium
Arsenic
Barium
Beryllium
Boron
Cadmium
Chromium
Cobalt
Copper
Vanadium
Yttrium
Zinc
Calcium
Ammonia
Sulfur
Phosphorus (black, white, red, yell
Fluoride
Sulfide
Cmpd Name
4-Chloro-3-methylphenol
Benzoic acid
2-Propanone
Benzene
Methylene chloride
Di ethyl phthalate
Di-n-butyl phthalate
Pentachlorophenol
Naphthalene
2-Hethvlnaphthalene
.oca T ion
N
19
4
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
20
20
=KIT i rnai
Detected
4
2
21
21
12
21
21
3
2
15
10
15
6
21
8
8
21
11
21
3
18
13
20
5
Id
15
2
21
21
18
21
15
20
4
se=9oiia > cxTrz
Prop. Detect
0.042
0.894
1.000
1.000
0.440
1.000
1.000
0.044
0.039
0.865
0.169
0.426
0.059
1.000
0.437
0.243
1.000
0.339
1.000
0.020
0.703
0.832
0.928
0.010
0.995
0.481
0.017
1.000
1.000
1.000
1.000
0.216
1.000
0.435
)CT-uirecT •
Minimum
Extract=TCLP —
N
15
15
18
18
18
18
18
15
18
Detected
1
2
12
1
14
1
1
1
f
Prop. Detect
0.000
0.097
0.170
0.000
0.964
0.007
0.005
0.061
0.150
0.768
Minimum
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Drilling > Location=Pit , Phase=Solid
Cmpdt
Cmpd Name
N Detected Prop. Detect
100414
103101
108883
108952
117817
124185
142621
593453
615225
629594
630013
638686
646311
7429905
7439896
7439921
7439954
7439965
7439976
7439987
7440020
7440097
7440213
7440224
7440235
7440246
7440315
7440326
7440393
7440417
7440428
7440439
7440473
7440484
7440508
7440655
7440666
7440702
7704349
7723140
Ethylbenzene
4-Methyl-2-pentanone
Toluene
Phenol
bis(2-Ethylhexyl) phthalate
n-Decane
hexanoic acid
n-Octadecane
2-(methylthioJbenzothi azole
n-Tetradecane
n-Hexacoaane
n-Triacontane
n-Tetracosane
Aluminum
Iron
Lead
Magnes i urn
Manganese
Mercury
Molybdenum
Nickel
Potassium
Silicon
Silver
Sodium
Strontium
Tin
Titanium
Barium
Beryllium
Boron
Cadmium
Chromium
Cobalt
Copper
Yttrium
Zinc
Calcium
Sulfur
Phosphorus (black, Mhite> red, yell
18
18
18
18
18
18
15
18
18
18
18
18
18
21
21
21
21
21
20
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
3
12
8
1
8
2
2
1
1
1
1
1
1
11
20
8
21
21
1
Z
11
10
14
1
21
8
13
1
21
1
16
10
7
1
6
2
21
20
21
3
a t CXT
letect
0.150
0.860
0.762
0.011
0.216
0.043
0.381
0.1C5
0.002
0.105
0.120
0.105
0.105
0.817
0.986
0.807
1.000
1.000
0.072
0.237
0.647
0.169
0.413
0.004
1.000
0.437
0.964
0.072
1.000
0.003
0.822
0.425
0.577
0.417
0.654
0.080
1.000
1.000
1.000
0.011
Minimum
-------
Summary Statistics for Field Sampling and Analysis Report
Exploration, Development! and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdft
1-001
1-002
1-003
1-004
1-005
1-007
1-009
1-010
1-012
1-013
1-014
7429905
7439896
7439921
7439954
7439965
7440020
7440213
7440235
Oo 7440246
Ul 7440315
7440326
7440393
7440428
7440473
7440508
7440622
7440666
7440702
7664417
7704349
7723140
16984488
18496258
Cmpdft
67641
71432
85018
91203
91576
99876
100414
108101
108883
112403
aiTe^uri .ixing ,
Cmpd Name
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Oil and grease
Residue* non-filterable
Res i due > filterable
Total organic carbon
Igni tabi lity
Corrosivi ty
Aluminum
Iron
Lead
Magnesium
Manganese
Nickel
Silicon
Sodium
Strontium
Tin
Titanium
Barium
Boron
Chromium
Copper
Vanadium
Zinc
Calcium
Ammonia
Sulfur
Phosphorus (black* white* red*
Fluoride
Sulfide
_ c: + a-n_i 1 1 ? i"»«
Cmpd Name
2-Propanone
Benzene
Phenanthrene
Naphthalene
2-Methylnaphthalene
p-Cymene
Ethylbenzene
4-Methyl-2-pentanone
Toluene
n-Dodecane
Location=iar>K. Bottom * mase=Liquia
N Detected Prop. Detect
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1 1
1
1
yell
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
1 1.000
Location=Tank Bottom , Phase=Solid >
N Detected Prop. Detect
1 .000
1 .000
1 .000
1 .000
1 .000
1 1 .000
1 1 .000
1 1 .000
\ 1 J-282
1 1 1.000
> txTract=uu
Minimum
680.0
630.0
8500.0
5500.0
325.0
129000.0
79000.0
9800.0
110000.0
200.0
7.1
757000.0
7150000.0
53100.0
669000.0
39700.0
12200.0
2860.0
3840000.0
908.0
12300.0
43800.0
647000.0
44300.0
46000.0
66100.0
5480.0
38900.0
4710000.0
88.0
27100.0
1100.0
73.0
4170.0
Extract=Diri
Minimum
391037.4
66387.4
32119.9
100131.9
148.1
41389.9
73449.9
40.8
llll787'9
-ecT
Wtd. Mean
680.0
630.0
8500.0
5500.0
325.0
129000.0
79000.0
9800.0
110000.0
200.0
7.1
757000.0
7150000.0
53100.0
669000.0
39700.0
12200.0
2860.0
3840000.0
908.0
12300.0
43800.0
647000.0
44300.0
46000.0
66100.0
5480.0
38900.0
4710000.0
88.0
27100.0
1100.0
73.0
4170.0
-—A __— , .
Wtd. Mean
391037.4
66387.4
32119.9
100131.9
148.1
41389.9
73449.9
40.8
206743.7
1311787.9
Maximum
680.0
630.0
8500.0
5500.0
325.0
129000.0
79000.0
9800.0
110000.0
200.0
7.1
757000.0
7150000.0
53100.0
669000.0
39700.0
12200.0
2860.0
3840000.0
908.0
12300.0
43800.0
647000.0
44300.0
46000.0
66100.0
5480 . 0
38900.0
4710000.0
88.0
27100.0
1100.0
73.0
4170.0
Maximum
391037.4
66387.4
32119.9
100131.9
148.1
41389.9
73449.9
40.8
206743.7
1311787.9
Units
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
degF
PH
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
mg/L
ug/L
ug/L
mg/L
mg/L
Units
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ua/ka
ua/ka
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration! Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdtt
112958
117817
124185
544763
593453
629594
629970
630013
630024
633686
646311
832699
CmpdB
QO W/Otl
5; 71432
78933
91203
91576
100414
108101
108883
112403
112958
124185
544763
629594
629970
630013
630024
646311
7429905
7439S96
7439954
7439965
7439987
7440020
7440235
7440315
7440393
7440428
7440666
7440702
7704349
— 31 Te-un lung >
Cmpd Name
n-Eicosatie
bis(2-Ethylhexyl) phthalate
n-Decane
n-Hexadecane
n-Octadecane
n-Tetradecane
n-Docosane
n-Hexacosane
n-Cctacosane
n-Triacontane
n-Tetracosane
1 -Methylphenanthrene
....
Cmpd Name
2-Propanone
Benzene
2-Butanone
Naphthalene
2-Mcthylnaphthalene
Ethylbenzene
4-Methyl-2-pentanone
Toluene
n-Dodecane
n-Eicosane
n-Decana
n-Hexadecane
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
n-Tetracosane
Aluminum
Iron
Magnes i urn
Manganese
Molybdenum
Nickel
Sodium
Tin
Barium
Boron
Zinc
Calcium
Sulfur
LocaTion-ian
N
1
1
1
1
1
K DOTTOm i
Detected
1
1
1
1
1
1
1
1
1
1
1
1
Location=Tank Bottom
N
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Detected
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
rnase=aoxia >
Prop. Detect
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
l.COO
1.000
1.000
i Phase=Solid
Prop. Detect
1.000
1.000
1.000
1.000
1.000
1.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
1.000
1.000
1.000
1.000
1.030
1.000
1.000
1.000
l.COO
1.000
txTr»CT=uir
Minimum
870115.9
104855.9
1861337.9
1011271.9
1022227.9
1239559.9
843535.9
301511.9
81553.9
445727.9
538859.9
39.5
, Extract=TC
Minimum
2610.6
325.5
64.5
12407.5
6836.9
196.2
79.5
494.0
133472.9
40747.3
147444.9
140523.9
110332.9
75365.5
12727.1
7719.0
31167.4
227.0
173000.0
17800.0
1920.0
122.0
527.0
14000000.0
402.0
4830.0
1580.0
242.0
454000.0
1780.0
Wtd. Mean
870115.9
104855.9
1861337.9
1011271.9
1022227.9
1239559.9
843535.9
301511.9
81553.9
445727.9
538859.9
39.5
i n
Wtd. Mean
2610.6
325.5
64.5
12407.5
6836.9
196.2
79.5
494.0
133472.9
40747.3
147444.9
140523.9
110332.9
75365.5
12727.1
7719.0
31167.4
227.0
173000.0
17800.0
1920.0
122.0
527.0
14000000.0
402.0
4830.0
1580.0
242.0
454000.0
1780.0
Maximum
870115.9
104855.9
1861337.9
1011271.9
1022227.9
1239559.9
843535.9
301511.9
81553.9
445727.9
538859.9
39.5
Maximum
2610.6
325.5
64.5
12407.5
6836.9
196.2
79.5
494.0
133472.9
40747.3
147444.9
140523.9
110332.9
75365.5
12727.1
7719.0
31167.4
227.0
173000.0
17800.0
1920.0
122.0
527.0
14000000.0
402.0
4830.0
1580.0
242.0
454000.0
1780.0
Units
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
-------
summary statistics Tor Pi eld sampling and Analysis Report
Exploration* Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
S5te=Production » Location=Endpoint , Phase=Liquid > Extract=Direct
Cmpdtf
Cmpd Name
00
1-001
1-002
1-003
1-00*
1-005
1-006
1-007
1-009
1-010
1-011
1-012
1-013
1-014
1-015
1-017
1-018
65850
676*1
71432
75092
75150
7527*
7569*
78591
78933
79005
8*7*2
85018
86737
91203
91576
9252*
95*87
98555
99876
100*1*
100*25
105679
106**5
108101
108883
108907
108952
108985
110758
112*03
112958
117817
1211*2
12*185
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Hydrogen i on
Oil and grease
Residue> non-filterable
Residue, filterable
Specific conductivity
Total organic carbon
Ignitability
Corrosivity
Reactivity
Salinity (from chloride)
Salinity (from sodium)
Benzoic acid
2-Propanone
Benzene
Methylene chloride
Carbon disulfide
Bromodi chloromethane
Trichlorofluoromethane
Isophorone
2-Butanone
1)1,2-Tri chloroethane
Di-n-butyl phthalate
Phenanthrene
Fluorene
Naphthalene
2-Methylnaphthalene
Biphenyl
o-Cresol
alpha-Terpineol
p-Cymene
Ethylbenzene
Styrene
2,*-Dimethylphenol
p-Cresol
4-Methyl-2-pentanone
Toluene
Chlorobenzene
Phenol
Benzenethiol
2-Chloroethylvinyl ether
n-Dodecane
n-Eicosane
bis(Z-Ethylhexyl) phthalate
2,*-Dini trotoluene
n-Decane
N Detected Prop. Detect Minimum
1.000 0.1
1.000
-------
CrapdB
Cmpd Name
Table 15 (COnt'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration) Development* and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Production , Location=Endpoint » Phase=Liquid » Extract=Direct
N Detected Prop. Detect
0.069
0.524
0.019
0.006
0.529
0.011
0.598
0.395
0.529
0.529
0.662
0.514
0.210
0.670
0.075
0.006
0.000
0.291
0.931
0.007
0.640
1.000
0.958
0.000
0.006
0.154
0.686
0.990
0.328
1.000
1.000
0.148
0.833
0.006
0.008
0.689
0.930
1.000
0.229
0.678
0.163
0.000
0.006
1.000
1.000
0.153
0.93d
0.994
0.014
0.000
132649
132650
142621
218019
544763
591786
593453
615225
629594
629970
630013
63C024
638686
646311
832699
1576676
1730376
7429905
743989S
00 7439921
00 7439932
7439954
7439965
7439976
7439987
7440020
7440097
7440213
7440224
7440235
7440246
7440280
7440315
7440337
7440360
7440332
7440393
7440428
7440439
7440451
7440473
7440484
7440508
7440666
7440702
7553562
7664417
7704349
7733140
7782492
Dibcnzofuran
D i benzothi ophene
hexanoic acid
Chrysene
n-Kexadecane
2-Hexanone
n-Octadecane
2- ( methyl thi o )benzothi azole
n-Tetradecane
n-Qocosane
n-Hexacosane
n-Octacosane
n-Triacontane
n-Tetracosane
1 -Mfithy Iphenanthrene
3,6-Dimethylphenanthrene
1-Methylfluorene
Aluminum
Iron
Lead
Lithium
Magnes i urn
Manganese
Mercury
Molybdenum
Nickel
Potassium
Silicon
Silver
Sodium
Strontium
Thallium
Tin
Tungsten
Antimony
Arsenic
Barium
Boron
Cadmium
Cerium
Chromium
Cobalt
Copper
Zinc
Calcium
Iodine
Ammonia
Sulfur
Phosphorus (blacKi white, red, veil
Selenium
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
21
24
24
24
2
2
6
2
12
1
11
3
11
10
8
7
7
10
3
1
1
6
23
4
16
24
23
3
5
4
20
22
11
24
23
2
20
1
7
9
21
24
7
6
6
2
1
24
24
3
19
21
r
WCl— LM r<
1i ni mum
-------
summary statistics TOP riexa sampling ana Analysis Report
Exploration* Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpd*
Cmpd Name
16984488 Fluoride
18496258 Sulfide
Cmpdtt
1-001
1-002
1-003
1-004
1-005
1-006
1-007
1-009
1-010
1-011
1-012
CD i'013
vo 1-014
1-017
1-018
67641
71432
75092
75343
78933
85018
86737
91203
91576
92524
95487
99876
100414
100425
105679
106445
108101
108883
108952
112403
112958
117817
124185
132650
544763
593453
629594
siTe-rroaucTioi
Cmpd Name
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Hydrogan i on
Oil and grease
Residue> non-filterable
Residuei filterable
Specific conductivity
Total organic carbon
Igni tabi li ty
Corrosivi ty
Salinity (from chloride)
Salinity (from sodium)
2-Propanone
Benzene
Methylene chloride
l>l-Dichloroethane
2-Butanone
Phenanthrene
Fluorene
Naphthalene
2-Mcthylnaphthalene
Biphenyl
o-Cresol
p-Cymene
Ethylbenzene
Styrene
2 1 4-D i methylphenol
p-Cresol
4-Methyl-2-pentanone
Toluene
Phenol
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
n-Decane
D i benzo th i ophene
n-Hexadecane
n-Octadecane
n-Tetradacane
Loca T i on= cnapo i nx
N Detected
21
21
21
2
Location-Midpoint >
N Detected
3
3
3
3
3
3
3
3
3
2
3
3
3
2
2
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
3
3
3
3
3
3
3
3
3
2
3
3
3
2
2
2
3
2
1
1
2
1
4
4
2
3
2
1
1
4
3
3
4
3
2
2
4
2
1
2
Prop. Detect
1.000
0.112
Phase=Li quid t
Prop. Detect
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
0.373
0.465
0.373
0.017
0.017
0.109
0.092
0.644
0.644
0.109
0.552
0.109
0.017
0.092
0.644
0.552
0.891
0.732
0.552
0.109
0.109
0.732
0.109
0.017
0.109
0 . 465
0.109
Minimum
0.3
Wtd. Mean
1.9
-------
Table 15 (Cont'd)
Summary Statistics for Field Sampling and Analysis Report
Exploration* Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Cmpdtf
<*D
O
629970
630013
630024
638686
646311
7429905
7439896
7439932
7439954
7439965
7439987
7440097
7440213
7440224
7440235
7440246
7440280
7440315
7440382
7440393
7440428
7440439
7440451
7440473
7440666
7440702
7553562
7664417
7704349
16984488
Cmpdtt
91203
91576
105679
7439954
7440235
7440393
7440428
7440666
7440702
7704349
9iie=rroaucTion ,
Cmpd Name
n-Docosane
n-Hexacosane
n-Octacosane
n-Tr i acontane
n-Te t r a cos ane
Alumi num
Iron
Lithium
Magnesium
Manganese
Molybdenum
Potassium
Silicon
Silver
Sodium
Strontium
Thallium
Tin
Arsenic
Barium
Boron
Cadmium
Cerium
Chromium
Zinc
Calcium
Iodine
Ammonia
Sulfur
Fluoride
Cmpd Name
Naphthalene
2-Methylnaphthalene
2 , 4-D i methylphenol
Magnes i um
Sodium
Barium
Boron
Zinc
Calcium
Sulfur
J\*V» h • Wl 1 — » I 1
N
5
5
5
5
5
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Locati on"
N
1
1
1
1
1
1
1
1
1
1
1 t*|JW 1 1 1 I >
Detected
2
2
2
2
2
2
3
2
2
2
1
2
2
2
3
2
1
2
1
2
3
1
1
2
3
3
1
3
1
2
•
Detected
1
1
1
1
1
1
1
1
1
1
niciats— L 1 fcju I u t
Prop. Detect
0.109
0.109
0.109
0.109
0.109
0.638
1.000
0.907
0.907
0.907
0.544
0.907
0.907
0.907
l.COO
0.907
0.362
0.907
0.362
0.907
1.000
0.362
0.362
0.907
1.000
1.000
0.544
1.000
0.362
0.907
Prop. Detect
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
cxir«ic i.— u i r
Minimum
-------
summary statistics Tor rieia sampling ana Analysis KeporT
Exploration» Development, and Production of
Crude Oil and Natural Gas
(Compounds detected in one or more samples only)
Site=Production > Location=Tank Bottom , Phi
Cmpdtt
Cmpd Name
N Detected Prop. Detect
1-001
1-002
1-003
1-004
1-005
1-006
1-007
1-008
1-012
1-013
1-014
1-016
67641
71432
78933
85018
100414
112403
112958
124185
544763
629594
629970
630013
630024
638686
646311
7429905
7439896
7439954
744C020
7440235
7440246
7440382
7440393
7440428
7440439
7440508
7440666
7440702
7664417
7704349
7723140
16984488
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Ni trate/ni tri te
Hydrogen ion
Oil and grease
Residue, total
Total organic carbon
Ignitability
Corrosivity
Oil and Grease (Retort)
2-Propanone
Benzene
2-Butanone
Phenanthrene
Ethylbenzene
n-Dodecane
n-Eicosane
n-Decane
n-Hexadecane
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
n-Triacontane
n-Tetracosane
Aluminum
Iron
Magnesium
Nickel
Sodium
Strontium
Arsenic
Barium
Boron
Cadmium
Copper
Zinc
Calcium
Ammoni a
Sulfur
Phosphorus (black, white, red, yell
Fluoride
son a ,
etect
1.000
1.000
1.000
1.000
1.000
1.000
.000
.000
.000
.000
.000
1.000
1.000
1.000
1.000
1.000
.000
.000
.000
.000
.000
.000
.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
extract=uir
Minimum
17.0
2930.0
425.0
7160.0
716.0
7.0
1000000.0
44.7
447000.0
200.0
7.0
519000.0
8178068.1
129340.9
1215363.6
126887.5
34866.6
1358206.2
5715649.9
371956. Z
7598375.0
2168556.2
3790106.2
3041837.4
2748387.4
1027306.2
3270106.2
101.0
92200.0
537.0
30.0
5510.0
2420.0
5.0
94.0
303.0
3.0
136.0
128.0
31700.0
140.0
92400.0
1160.0
140.0
Ktd. Mean
17.0
2930.0
425.0
7160.0
716.0
7.0
1000000.0
44.7
447000.0
200.0
7.0
519000.0
8178068.1
129340.9
1215363.6
126887.5
34866.6
1358206.2
5715649.9
371956.2
7598374.9
2168556.2
3790106.2
3041837.4
2748387.4
1027306.2
3270106.2
101.0
92200.0
537.0
30.0
5510.0
2420.0
5.0
94.0
303.0
3.0
136.0
128.0
31700.0
140.0
92400.0
1160.0
140.0
Maximum
17.0
2930.0
425.0
7160.0
716.0
7.0
1000000.0
44.7
447000.0
200.0
7.0
519000.0
8178068.1
129340.9
1215363.6
126887.5
34866.6
1358206.2
5715649.9
371956.2
7598375.0
2168556.2
3790106.2
3041837.4
2748387.4
1027306.2
3270106.2
101.0
92200.0
537.0
30.0
5510.0
2420.0
5.0
94.0
303.0
3.0
136.0
128.0
31700.0
140.0
92400.0
1160.0
140.0
Units
mg/kg
rag/kg
mg/kg
mg/kg
mg/kg
PH
mg/kg
7.
mg/kg
degF
PH
mg/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
ug/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
-------
Cmpdtt
VO
to
67641
71432
75092
75150
78933
83329
100414
106383
112403
112958
124185
132649
544763
629594
629970
630013
63CC24
633686
646311
7439896
7439954
7439965
7440235
7440246
7440393
7440428
7440666
7440702
7704349
7723140
Cmpd Name
Table 15 (Cont'd)
Summary Statistics fop Field Sampling and Analysis Report
Exploration, Development, and Production of
Crude Oi1 and Natural Gas
(Compounds detected in one or more samples only)
Site=Production , Location=Tank Bottom > Phase=Solid , Extract=TCLP
N Detected Prop. Detect
2-Propenone
Benzene
Mothylene chloride
Carbon disulfide
2-Butanone
Accnaphthenti
Ethylbenzene
Toluene
n-Dodecane
n-Eicosane
n-Decane
Oibenzofuran
n-Kexac'ecanc
n-Tetradecane
n-Docosane
n-Hexacosane
n-Cctacosane
n-Triacontane
n-Tetracosane
Iron
Magnesium
Manoanese
Sodi us>
Strontium
Barium
Boron
Zinc
Calcium
Sulfur
Phosphorus (black, white, red, yell
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.coo
.000
.000
.000
.000
.000
1.000
i extract- ii
Minimum
1166.8
1182.8
12.0
20.9
697.0
1404.3
27.3
59.7
14291.9
23035.7
7984.3
2310.7
108366.9
75125.5
98990.1
28640.3
70541.3
11003.0
25487.9
28900.0
6710.0
674.0
136COOO.O
22000.0
733.0
850.0
280.0
291000.0
20100.0
1890.0
Mtd. Mean
1166.8
1182.8
12.0
20.9
697.0
1404.3
27.3
59.7
14291.9
23035.7
7984.3
2310.7
108366.9
75125.5
98990.1
28640.3
70541.3
11003.0
25487.9
28900.0
6710.0
674.0
1360000.0
22000.0
733.0
850.0
280.0
291000.0
20100.0
1890.0
Maximum
1166.8
1182.8
12.0
20.9
697.0
1404.3
27.3
59.7
14291.9
23035.7
7984.3
2310.7
108366.9
75125.5
98990.1
28640.3
70541.3
11003.0
25487.9
28900.0
6710.0
674.0
1360000.0
22000.0
733.0
850.0
280.0
291000.0
20100.0
1890.0
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
•it*i A description of type of site •••pled -
Central treatment (centralised treatment facility)
Central pit (centralised pit)
Drilling
Production
Location! A description of th* point *t Which th* •••pi* was
taken at th* *it* -
Influent
Effluent
Tank
Centre! pit (commercial facility)
Mid-point (of production)
End-point (of production)
Tank bottom
Pit (drilling)
Drilling Bud
Phasei Refer* to the physical *t*te of th* (ample and in th*
ca** of pit* is an indicator of whether the sample was
•up*rnat*nt or *ludg* -
Liquid (supernatant)
Extracti K*fere to the •nalytical procedure u**d to characterise
th* waste. Th* samples were enalyced by cither
constituent analysis (direct) or th* TCLP -
Direct
TCLP
Cmpdti CAS compound number
Cvpd Manet Compound name
lit Th* number of samples analysed for th* compound
Detectedi Th* number of samples in which th* compound we*
detected
Prop. Detect.i Estimated population proportion of samples with
detectable amount of compound, calculated •• th*
volume-weighted proportion of detection, •• the
mean of • 0/1 indicator of compound detection in
each sample
Minimumi Th* minimum concentration reported, or *
-------
volume for the site and combined between zones by following
process, for each pollutant, site type, sampling location, and
sample phase and extract (liquid, solid, or TCLP):
1. Analyses of multiple samples at the same sample
point (if more than one were taken and analyzed) at the same site
are averaged to produce
Cp ,
the estimated average concentration of the pollutant for the
site.
2. Weighted mean concentrations for each zone are
calculated as
_ z fp Cp
I fp
where ~Cp are the average concentrations of the pollutant at each
site, fp are the associated waste volumes, and nz is the number
of sites randomly sampled in the zone. (The number of random
samples analyzed per Zone differs for each analytical method.)
This calculation is based on the assumption that each state in a
zone has the same average total production as other sites in the
same zone, and hence that the weighted selection of state,
followed by an random selection of sites based on the list from
each state, leads to an equal chance of selecting each site
within the zone as a random sample site.
If other estimates of the total number of sites in a
state and zone were available, an appropriate adjustment to the
weighting would be used by the ratio of the actual (or more
accurately estimated) number of sites in a state and zone to the
original probabilities used to select the states.
3. Zone estimates based on random samples are combined
with the directed samples based on the total zone waste volume
and the total volume at the directed sites by
C'z = [(Fz - I fd) Cz + ( z fd Cd)]/Fz
where Fz are the total zone waste volumes (independently
estimated, as described below), and fd and Cd are the waste
volume and average concentration at each directed site in the
zone.
93
-------
4. National estimates are produced by weighting by the
zone volumes
£ FZ C'z
Waste Volumes
The waste volume corresponding to water measurements at
production sites is the produced water volume. Produced water
volume was reported for each site in barrels of produced water
per day. The waste volumes applicable to liquid and solid pit
samples are the total liquid and solid waste, respectively,
generated by the site during the course of drilling.
The drilling waste volumes associated with each site
were calculated based on engineering inspection and information
from site operators, based on the current volumes in the pit at
time of visit, the amounts of previously removed material from
the pit, and the percentage of drilling completed. As no
appropriate measure of waste volume was available for other site
types (central pit, central treatment), and those sites were all
directed sites, a simple arithmetic mean of the reported
concentrations is calculated for those sites.
The zone and national total waste volume amounts were
estimated from independent information sources. Produced water
volumes and total drilling waste volumes by state were estimated
for the five years 1981-1985. The five-year average waste volume
for each state was totalled to form the total zone average waste
94
-------
volume used in the calculation of the national concentration
estimates.
In cases where other estimates of produced water
calculations were not available/ produced water values were
estimated from the oil production values for the state for that
year, by multiplying by (1) the average ratio of produced water
to oil production for other years at the same state, if
available, or (2) by the average ratio of produced water to oil
production for all years and states in the same zone where data
was available.
Total drilling waste values for each state were
computed as the sum of the five-year average drilling waste
estimates for each state. The proportion of liquid and solid
drilling waste was estimated for each zone based on the
(volume-weighted) average proportion of liquid and solid waste
observed at the sites visited in the zone. This proportion was
applied to the total drilling waste value to produce estimated
zone liquid and solid drilling waste values for use in the
concentration weighting.
Detection Limits
In computing summary statistics, those samples with
concentrations reported less than the detection limit must be
accounted for. A number of different statistical approaches are
possible to the handling of detection limit values in calculating
95
-------
summary statistics. For purposes of calculating summary
statistics in this report, samples which showed no detectable
level of a compound were assigned the concentration value of
zero. Statistics produced by this method give conservative lower
bounds to the effect of the detection limit samples. Further
analysis of ways to most appropriately account for the detection
limit samples may be of interest in further work with these data.
Statements of Data Quality for Samples
Statements of data quality (Data Quality Indicators) were
generated by computing the mean and variability of the recovery
of the analytes spiked into samples for the conventional
pollutants, and of stable isotopically labeled analogs of the
pollutants spiked into samples for organic compounds. These are
reported in the "Statements of Data Quality (Data Quality
Indicators) for Samples" in Table 16.
Statements were not produced for metals because EPA did not
require the laboratory to report all quality assurance results.
EPA has requested these data and has received a portion of them,
but did not have time to include them in this report. EPA will
include these data in the record that will support the Report to
Congress.
Labeled compound recoveries for the organic analytes include
every incidence of detection, regardless of level of dilution,
but do not include "not detects" because of the time needed to
96
-------
lenieiii. 01 uaia muaj.ity luaca uiucu.i'cy indicators)
for Samples
Cmpd»
50293
55389
56382
53699
60571
72203
76448
93765
..... -, 94757
EGO 184
EGIJ1.91
EGD192
EGD193
EGH194
ESD429
121755
309002
666524
786196
1076433
iJJ 1111882
1111893
1146652
1486017
1517222
1665005
1713521
1713532
1719035
1719068
2037265
2199691
2199704
2199726
2679892
2747582
2921882
3114554
3855821
4165600
4165622
5161295
6745353
15067202
15716082
16416298
16416301
16416323
17070070
1 '• i ^"^'* i ft
t . - 5 "/ j 'j
pnase =Liqun
Cmpd Name
4.4--DDT
Phosphorodi thioic acid, 0,0-di methyl-, 0
Phosphorothioic acid, 0,0-diethyl 0-(4-n
Cyclohexane, 1,2,3,4,5,6-hexachloro-,
Dieldrin
1 , 4 : 5 , 8-D i methanonaphthalene , 1.2,3,4,10
Heptachlor
2 » 4 » 5-Tr i chlorophenoxyacet i c act d
2»4,70.ichJ.o.rophenoxyacetic acid, salts an
37Cl-tetrachlorodibenzo-p-dioxins
13C12-pentachlorodibenzo-p-dioxins
13C12-nexachlorodibenzo-p-dioxins
13C12-tetrachlorodibenzofurans
13C12-hexachlorodibenzofurans
13C12-2378-tatrnchlorodibenzo-p-dioxin
Succinic acid, mercapto-, di ethyl ester,
1 , 4 : 5 , 8-D i methanonaphthalene , 1,2,3,4,10
acetone-d6
Phosphorodi thioic acid, s( ( ( p-chlorophen
benzene-d6
bromomethane-d3
chloromethane-d3
naphtha Iene-d8
biphenyl-dlO
phenanthrene-dlO
methylene chloride-d2
pyrene-dlO
benzol a )anthracane-d!2
chrysene-d!2
anthracene-dIO
toluene-dS
1 ,2-dichlorobenzene-d4
1 , 3-di chlorobenzene-d4
1 ,2,4-trichlorobenzene-d3
di ethyl ether-dlO
1 , 1 , l-trichloroethane-d3
Phosphorodi thioic acid, 0,0-diethyl
chlorobenzcn«-d5
1 ,4-dichlorobenzene-d4
ni trobenzene-dS
phenol -d5
styrene-d5
vinyl chloride-d3
acenaphthene-dl 0
n-C16-d34
n-C10-d22
n-C12-d26
n-C24-d50
Ii2-dichlci onthnrie-d4
c h(r»t-'- • ll-.nii.-
-------
Table 16 (Cont'd)
Statement of Data Quality (Data Quality Indicators)
for Samples
Phase =Li quid , Extract =Direct
CmpdS
Cmpd Name
VO
00
25837052
31717449
32488496
3248A509
33262292
33665540
33964053
37055519
42366472
53389267
53807264
56912777
62369679
63466717
72802814
81103799
853S0741
92890636
93951667
93951678
93951689
93951690
93951703
93951725
93951736
93951747
93951751
93951758
93951769
93951770
93951792
93951805
93951849
93951850
93951861
93951872
93951894
93951907
93951918
93951929
93951930
93951941
93951952
93951974
93951985
93951996
93952002
93952013
93S52C24
93952035
93952046
ethylbenzene-dlO
chloroform-13C
tetrachlorethenu-13C2
carbon tetrachloride-13C
di benzothi opheno-d8
111> 212-tetrachloroethane-d2
acrolein-d4
di phenylami ne-dl0
trans-l»2-dichlorethene-d3
methyl ethyl ketone-d3
acryloni triIe-d3
1i1-dichloroethane-d3
n-C20-d42
benzol a)pyrene-d!2
bromoform-13C
fluorene-dlO
pentachlorophenol-13C6
benzidine-d8
benzofghi)perylcne-dl2
bis(2-chloroisopropyl) ether-dl2
2 »4-di ni trotoluene-d3
fluoranthene-dlO
hexachlorobutadi ene-13C4
4-chloro-3-methylphenol-d2
2-chlorophenol-d4
2i4-di chlorophenol-d3
2-ni trophenol-d4
2>4-dimethylphenol-d3
2-methyl-4i6-dinitrophenol-d2
2»4-dinitrophenol-d3
4-ni trophenol-d4
2>4»6-trichlorophenol-d2
2-chloronaphthalene-d7
4-chlorophenyl phenyl ether-d5
trans-1>3-dichloropropene-d4
bis(2-ethylhoxyl) phthalate-d4
dimethyl phthalate-d4
2»6-dini trotoluune-d3
3.3'-dichlorobenzi di ne-d6
1»2-diphenylhydrazine-dlO
alpha-pi coline-d7
beta-naphthylarai ne-d7
N-ni trosodi phenylami ne-d6
acenaphthylene-d8
benzolbIfIuoranthene-dl2
dibromochloromethane-13C
trichloroethene-13C2
benzo(k)fluoranthene-d!2
bis(2-chloroethyl) ether-d8
D-cvrene-dl4
di benzofuran-d8
N
71
71
71
71
75
71
36
74
71
1
71
71
77
77
68
75
66
44
76
77
73
76
77
68
72
72
70
89
64
39
40
73
76
76
70
77
75
75
73
75
74
63
74
76
77
71
71
77
77
Mean
Recovery (X)
102.6
91.8
63.3
88.6
95.1
94.0
113.6
86.1
89.0
16.1
72.6
90.8
91.2
88. 5
106.2
86.0
54.2
47.2
78.9
71.0
75.2
92.8
61,3
51.8
61.8
58.2
59.2
43.1
54.1
52.8
67.0
49.2
79.8
78.8
81.8
99.3
48.4
99.6
74.8
87.0
68.1
75.6
86.2
71.6
95.2
89.5
72.5
92.9
71.2
8:1
Std. of
Recovery (X)
25.8
10.2
22.2
23.9
45.8
19.8
63.0
24.3
13.1
,
67.0
10.7
32.3
41.0
107.9
31.2
30.1
36.0
51.0
19.2
30.1
29.8
26.0
28.0
20.0
20.1
24.4
25.0
31.2
34.4
36.0
18.0
24.8
28.3
9.7
33.7
28.4
46.6
37.9
29.8
22.6
34.7
24.0
21.1
46.6
15.6
11.6
38.8
19.7
26.8
25.9
Lower
95X C.I.
96.5
89.4
58.0
83.0
64.5
89.3
92.3
80.5
85.9
f
56.7
88.3
63.9
79.2
80.1
78.6
46.8
36.2
67.3
66.6
68.2
85.9
55.4
45.0
57.1
53.5
53.4
37.8
46.3
41.7
55.5
45.0
74.1
72.4
79.5
91.7
41.8
86.9
66.0
80.1
62.9
66.8
80.7
66.8
84.6
85.8
69.7
84.1
66.8
52.8
76.0
Upper
952 C.I.
108.7
94.2
68.5
94.3
105.6
98.7
135.0
91.8
92.1
m
68.4
93.3
98.5
97.8
132.3
93.2
61.6
58.1
90.6
75.3
82.3
99.6
67.2
58.6
66.5
62.9
65.0
48.3
61.9
64.0
78.5
53.4
85.5
85.3
84.2
107.0
54.9
110.3
83.7
93.8
73.4
84.3
91.8
76.4
105.8
93.2
75.2
101.7
75.7
64.9
87.9
-------
or ua^a
for Samples
uiuaj.ny
Phase = Li quid , Extract =Direct
CmpdS
93952057
93952068
93952079
93952080
93952091
939521C4
93952115
93952126
93952137
93952148
93952159
93952160
1-003
1-005
1-012
57125
16984488
18496258
Cmpd Name
diphenyl ether-dlO
alpha-terpinool-d3
n-C30-d62
1,2-dichloropropane-d6
1,1,2-trichlorocthane-13C2
bromcdi chloromethane-13C
di-n-butyl phthalate-d4
diethyl phthalate-d4
di-n-octyl phthalate-d4
hexachlorobcnzene-13C6
hexachloroethanis-13C
i sophorone-d8
Chloride
Ni trate/ni tri te
Total organic carbon
Cyanides (soluble salts and complexes) N
Fluoride
Sulfide
vo
Cmpdtt Cmpd Name
50293 4,4'-DDT
55389 Phosphorodithioic acid, 0,0-dimethyl-, 0
56382 Phosphorothioic acid, 0,0-diethyl 0-(4-n
53899 Cyclohexane, 1,2,3,4,5,6-hexachloro-,
60571 Dieldrin
72208 l,4:5,8-Dime-ihanonaphthalene, 1,2,3,4,10
76448 Keptachlor
93765 2,4,5-Trichlorophenoxyacetic acid
94757 2,4-Dichlorophenoxyacetic acid, salts an
EG!) 184 37Cl-tetrachlorodi benzo-p-di oxi ns
EGI) 191 13C12-pentachlorodi benzo-p-di oxi ns
EGD192 13C12-hexachlorodi benzo-p-di oxi ns
EGD193 13C12-tetrachlorodibenzofurans
EGD194 13C12-hexachlorodibenzofurans
EGU429 13C12-2378-tetrachlorodibenzo-p-dioxin
121755 Succinic acid, mercapto-, diethyl ester,
309002 l,4:5,8-Dimethanonaphthalene, 1,2,3,4,10
666524 acetone-d6
786196 Phosphorodithioic acid, s(((p-chlorophen
1076433 benzene-d6
1111882 bromomethane-d3
1111893 chlororaethane-d3
1146652 naphthalene-da
1486017 biphenyl-dlO
1517222 phenanthrene-dlp
1665005 methvlene chlonde-d2
N
76
25
77
71
71
71
77
75
77
77
77
76
3
3
1
1
2
1
2
2
2
2
2
2
2
2
2
14
10
10
14
10
14
2
2
30
2
41
41
41
35
34
34
41
Mean
Recovery (X)
76.6
70.5
89.8
98.8
103.6
91.8
96.2
68.1
102.4
84.4
52.5
72.3
103.7
105.3
111.0
90.0
97.5
102.0
Mean
Recovery (X)
86.0
95.5
106.5
101.0
0.0
97.0
87.5
88.0
33.0
106.7
65.5
65.9
64.7
94.1
70.2
101.0
39.0
90.0
77.5
108.3
101.0
158.8
70.4
56.4
73.5
59.6
Std. of
Recovery (X)
25.2
29.0
37.5
7.3
11.6
9.4
30.7
34.4
41.1
31.1
28.9
19.9
1.5
2.3
.
.
7.8
•
Std. of
Recovery (X)
2.8
3.5
3.5
18.4
0.0
1.4
2.1
22.6
2.8
13.6
22.4
26.6
28.4
40.5
27.4
2.8
1.4
41.3
2.1
14.9
37.3
68.9
28.3
24.0
30 .5
27.0
Lower
95X C.I.
70.9
58.6
81.3
97.0
100.8
89.6
89.2
60.2
93.1
77.3
45.9
67.8
99.9
99.6
^
0.0
27.6
-
Lower
95X C.I.
60.6
63.7
74.7
0.0
0.0
84.3
68.4
0.0
7.6
98.8
49.5
46.9
48.3
65.1
54.4
75.6
26.3
74.6
58.4
103.6
89.2
137.0
60.7
48.0
62.8
51.0
Upper
95X C.I.
82.4
82.5
98.3
100.5
106.3
94.1
103.2
76.0
111.7
91.4
59.0
76.9
107.5
111.1
f
*
167.4
•
Upper
95X C.I.
111.4
127.3
138.3
266.2
0.0
109.7
106.6
291.3
58.4
114.5
81.5
84.9
81.1
123.0
86.0
126.4
51.7
105.4
96.6
113.0
112.7
180.5
80.2
64.8
84. 1
68. 1
-------
Table 16 (Cont'd)
Statement of Data Quality (Data Quality Indicators)
for Samples
Phase =Solid > Extract =Direct
Cmpdtt
Cmpd Name
O
O
1718521
1718532
1719035
1719068
2037265
2199691
2199704
2159726
2679892
2747582
2921882
3114554
3355821
4165600
41615622
5161295
6745353
15067202
15716082
16416298
16416301
16416323
17070070
19199918
22280735
25837052
31717449
32463496
32486509
33262292
33685540
33984053
37055519
42366472
53807264
56912777
62369679
63466717
72802814
81103799
85380741
92890636
93951667
93951678
93951689
93951690
93951703
93551725
93951736
93951747
93951751
pyrene-dlO
benzo(a)anthracene-dl2
chrysene-d!2
anthracene-dlO
toluene-da
1»2-dichlorobenzene-d4
1> 3-di chlorobenzene-d4
1 i2f4-trichlorobenzer>e-d3
diethyl ether-dlO
11111-tri chloroethane-d3
Phosphorodithioic acid» OiO-diethyl
chlorobenzene-d5
1»4-dichlorobenzene-d4
ni trobenzene-d5
phenol-d5
styrene-d5
vinyl chloride-d3
acenaphthene-dlO
n-C16-d34
n-C10-d22
n-C12-d26
n-C24-d50
1> 2-dichloroethane-d4
chloroethane-d5
111-di chloroethcne-d2
ethylbenzene-dlO
chloroform-13C
tetrachlorethene-13C2
carbon tetrachloride-13C
d i benzoth i ophene-d8
1,1,2,2-tetrachloroethane-d2
acrolein-d4
diphenylaraine-dlO
trans-1i2-dichlorethene-d3
acryloni triIu-d3
1,1-di chloroethane-d3
n-C20-d42
benzol a)pyrene-d!2
bromoform-13C
fluorene-dlO
pentachlorophenol-13C6
benzidine-d8
benzolghi)perylene-d!2
bis(2-chloroisopropyl) ether-d!2
2»4-dinitrotoluene-d3
fluoranthene-dl0
hexachlorobutadi ene-13C4
4-chloro-3-methylphenol-d2
2-chlorophenol-d4
2,4-6ichlorophet>ol-d3
2-ni troDhenol-d4
35
35
35
34
40
34
34
35
41
41
2
39
34
35
33
35
41
33
35
34
35
35
41
41
41
40
41
39
41
35
40
30
33
41
41
41
35
34
35
33
20
16
34
35
33
35
34
33
33
Mean
Recovery CX)
84.9
91.1
90.7
86.1
156.9
57.3
55.2
58.0
93.6
108.fi
55.0
144.4
57.5
66.2
41.9
51.2
111.7
73.2
73.4
33.9
57.3
94.5
98.3
91.0
101.7
140.3
97.8
91.1
112.4
87.9
133.5
73.0
81.4
83.4
79.5
97.7
85.1
96.3
76.1
77.3
38.2
64.0
84.3
68.0
80.0
82.6
54.7
48.9
51.6
49.1
45.7
Std. of
Recovery (X)
33.0
42.0
38.0
36.2
82.1
25.3
25.3
24.7
11.0
19.4
2.8
68.7
25.8
26.5
26.0
26.3
43.2
27.6
30.3
17.7
26.9
42.2
14.1
38.6
14.7
76.9
10.6
45.5
32.0
44.6
98.4
32.4
27.2
20.3
44.6
11.7
32.7
55.9
33.6
33.2
31.6
58.0
62.3
26.6
29.2
32.3
27.3
24.8
18.1
18:!
Lower
95X C.I.
73.6
76.7
77.7
73.5
130.7
48.5
46.4
49.5
90.1
102.7
29.6
122.1
48.5
57.1
32.7
42.2
98.0
63.5
63.0
27.7
48.0
80.1
93.9
78.8
97.0
115.7
94.4
76.3
102.3
72.6
102.0
60.9
71.8
82.0
65.5
94.0
73.9
76.8
64.6
65.6
23.4
33.1
62.6
58.8
69.6
71.6
45.1
40.1
45.2
3i:f
Upper
95X C.I.
96.2
105.6
103.8
98.7
183.2
66.2
64.1
66.5
97.0
115.0
80.4
166.7
66.5
75.4
51.2
60.2
125.3
83.0
83.8
40.0
66.5
109.0
102.8
103.2
106.3
164.9
101.1
105.8
122.5
103.3
164.9
85.1
91.0
94.8
93.6
101.3
96.4
115.9
87.7
89.1
53.0
94.9
106.1
77.2
90.3
93.7
64.2
57.7
58.0
52*9
-------
Statement of Data Quality (Data quality Indicators)
for Samples
Phase =Solid
Cmpdtt
Crapd Name
93951758
93951769
93951770
93951792
93951805
93951649
93951850
93951861
93951872
93951894
93951907
93951918
93951929
93951930
93951941
93951952
93951974
93951985
93951996
93952002
93952013
93952024
93952035
93952046
93952057
93952068
93952079
93952080
93952091
93952104
93952115
93952126
93952137
93952148
93952159
93952160
1-012
57125
2I4-dimethylphenol-d3
2-methyl-4»6-dinitrophenol-d2
2>4-dinitrophenol-d3
4-ni trophenol-d4
2 »4,6-trichlorophenol-d2
2-chloronaph'ihalene-d7
4-chlorophenyl phenyl ether-d5
trans-1,3-d ichloropropene-d4
bis(2-ethylhoxyl) phthalate-d4
dimethyl phthalate-d4
2>6-dinitrotoluene-d3
3)3'-di chlorobenzi d i ne-d6
1 i2-diphenylhydrazine-dlO
aIpha-p i coli ne-d7
beta-naphthylami ne-d7
N-ni trosodiphenylamine-d6
acenaphthylene-d8
benzo t b) f luoran'ihene-dl 2
di bromochloromethane-13C
trichloroethene-13C2
benzolk)fIuoranthene-dl2
bis(2-chloroathyl) ether-dS
p-cymene-dl4
di benzofuran-d8
cliphenyl ethor-dlO
alpha-terpineol-d3
n-C30-d62
1i2-dichloropropane-d6
1,112-trichloroethane-13C2
bromodichloromethane-13C
di-n-butyl phthalate-d4
diethyl phthalate-d4
di-n-octyl phthalate-d4
hexachlorobenzene-13C6
hexachloroethane-13C
i sophorone-dfl
Total organic carbon
Cyanides (soluble salts and complexes) N
43
24
9
16
33
34
35
41
35
33
33
34
34
35
29
33
33
35
41
41
35
35
35
33
34
15
35
41
41
41
35
34
35
35
35
35
3
1
Mean
Recovery (X)
41.0
38.5
45.2
48.6
41.7
70.8
70.1
79.7
97.1
54.5
110.6
78.7
82.4
61.5
66.5
75.9
68.5
93.6
87.3
77.8
93.0
64.0
57.3
74.8
70.8
77.3
95.7
105.8
119.4
103.2
89.3
70.3
103.4
76.0
49.3
72.3
99.3
92.0
Std. of
Recovery (X)
28.0
26.4
32.3
29.6
14.6
31.9
29.2
10.1
41.3
24.5
57.7
39.3
32.7
33.8
50.4
26.7
25.3
51.7
16.3
10.7
48.1
29.9
26.9
29.3
27.3
45.6
51.3
12.8
37.2
13.8
36.8
32.1
49.9
31.3
25.1
26.0
3.8
.
Lower
95X C.I.
32.4
27.3
20.4
32.8
36.5
59.6
60.1
76.6
83.0
45.8
90.2
65.0
71.0
49.9
47.3
66.4
59.5
75.8
82.1
74.4
76.5
53.7
48.0
64.4
61.3
52.0
78.1
101.7
107.6
98.9
76.6
59.1
86.2
65.2
40.6
63.4
89.9
0.0
Upper
95X C.I.
49.7
49.6
70.0
64.3
46.8
81.9
80.2
82.9
111.3
63.2
131.1
92.4
93.8
73.1
85.7
85.3
77.4
ill. 3
92.4
81.2
109.5
74.2
66.5
85.2
80.3
102.5
113.3
109.8
131.1
107.6
101.9
81.5
120.5
86.8
57.9
81.2
108.7
.
-------
Table 16 (Cont'd)
Statement of Data Quality (Oats Quality Indicators)
for Samples
Phase =Solid
CmpdS
Cmpd Name
O
to
666524
1076433
1111682
1111893
1146652
1466017
1517222
1665005
1713521
1718532
1719035
1719068
2037265
2199691
2199704
2199726
2679892
2747582
3114554
3655821
4165600
4165622
5161295
6745353
15067202
15716082
16416298
16416301
16416323
17070070
19199918
22280735
25837052
31717449
32488496
32488509
33262292
33665540
33984053
37055519
42366472
53807264
56912777
62369679
63466717
72802814
81103799
85380741
92890636
93951667
93951678
acetone-d6
benzene-d6
broraomethane-d3
chloroitiethane-d3
naphthalene-dS
biphenyl-dlO
phenanthrene-dl0
methylene chloride-d2
pyrene-dlO
benzol a)anthracene-d!2
chrysene-d!2
anthracene-dlO
toluene-d3
1f 2-di chlorobenzene-d4
113-di chlorobensene-d4
I>2i4-tri chlorobenzene-d3
diethyl ether-dlO
1>1i1-trichloroethane-d3
chlorobenzene-d5
1»4-dichloroben2ene-d4
ni trobenzene-d5
phenol-d5
styrene-d5
vinyl chloride-d3
accnaphthene-dlO
n-C16-d34
n-C10-d22
n-C12-d26
n-C24-d50
1»2-di chloroethane-d4
chloroethane-d5
1.1-di chlorocthcne-d2
ethy lbenzene--dl 0
chloroform-13C
tetrachlorethene-13C2
carbon tetrachloride-13C
di benzothi ophene-d8
1,1>2 >2-tetrachloroethane-d2
acrolein-d4
di phenylaraine-dl0
trans-l,2-dichlorethene-d3
acryloni triIe-d3
1>1-di chloroethane-d3
n-C20-d42
benzo(a)pyrene-d!2
bromoform-13C
fluorene-dlO
pentachlorophenol-13C6
benzidSne-d8
benzo(chi)pervlene-d!2
bis(2-chloroisoproovlJ ethei—d!2
N Mean
24
27
27
27
25
25
25
27
25
25
25
25
27
25
25
24
27
27
27
25
25
14
25
27
25
25
25
25
25
27
27
27
27
27
27
27
25
27
14
25
27
27
27
25
25
27
25
12
10
25
25
Recovery (X)
96.2
96.2
88.6
130.0
78.2
65.4
88.0
207.2
96.8
88.1
102.2
102.1
107.3
57.3
56.8
66.3
98.6
97.9
115.0
59.4
64.4
49.9
51.9
100.9
82.8
79.8
29.1
56.1
103.5
97.0
78.5
87.8
109.1
90.7
73.4
101.4
94.7
93.1
102.1
89.1
88.4
98.7
90.3
94.0
80.9
108.9
85.9
32.8
30.4
K:l
Std. of
Recovery (X)
71.4
13.0
45.2
89.7
16.9
11.8
19.5
757.4
25.9
60.8
45.6
16.7
25.7
16.8
18.2
15.9
29.9
35.8
29.4
18.2
16.6
33.6
17.0
68.7
17.4
16.2
11.6
16.4
44.7
42.2
37.7
34.4
24.4
30.0
24.0
42.3
14.0
25.5
109.9
15.2
44.9
92.1
33.2
17.9
52.8
70.8
17.9
31.1
45.5
«:!
Lower
95X C.I.
66.1
91.0
70.7
94.5
71.3
60.5
79.9
0.0
86.1
63.0
S3. 4
95.2
97.2
50.4
49.2
59.5
86.8
83.7
103.4
51.9
57.6
30.5
44.9
73.7
75.6
73.1
24.3
49.4
85.0
80.3
63.6
74.2
99.4
78.8
64.0
84.7
88.9
83.0
38.6
82.8
70.6
62.2
77.2
86.6
59.1
80.9
78.5
13.1
0.0
22:2
Upper
95X C.I.
126.4
101.3
106.5
165.5
85.2
70.3
96.0
506.8
107.5
113.1
121.0
109.0
117.5
64.2
64.3
73.0
110.5
112.1
126.6
66.9
71.3
69.3
58.9
128.0
90.0
86.5
33.9
62.9
121.9
113.7
93.4
101.4
118.8
102.6
82.9
118.1
100.5
103.2
165.5
95.4
106.1
135.1
103.5
101.5
102.7
136.9
93.2
52.6
62.9
99.8
78.1
-------
Cmpdft Cmpd Name
for Samples
Phase =Solid , Extract =TCLP
N
93951689 2,4-dinitrotoluene-d3
93951690 fluoranthene-dlO
93951703 hexachlorobutadiene-13C4
93951725 4-chloro-3-methylphenol-d2
93951736 2-chlorophenol-d4
93951747 2,4-dichlorophenol-d3
93951751 2-nitrophenol-d4
93951758 2,4-dimethylphenol-d3
93951769 2-methyl-4,6-dinitrophenol-d2
93951770 2,4-dinitrophenol-d3
93951792 4-nitrophenol-d4
93951805 2i4,6-trichlorophenol-d2
93951849 2-chloronaphthalene-d7
93951850 4-chlorophenyl phenyl ether-dS
93951861 trans-l,3-dichloropropene-d4
93951872 bis(2-ethylhexyl) phthalate-d4
93951894 dimethyl phthalate-d4
93951907 2,6-dinitrotoluene-d3
93951918 3,3'-dichlorobenzidine-d6
93951929 1,2-diphenylhydrazine-dlO
93951930 alpha-picoline-d7
93951941 beta-naphthylamine-d7
93951952 N-nitrosooiphenylamine-d6
93951974 acenaphthylene-d8
93951985 benzo(b)fluoranthene-dl2
93951996 dibromochloromethane-13C
93952002 trichloroethene-13C2
93952013 benzo(k)fluoranthene-d!2
93952024 bis(2-chloroethyl) ether-d8
93952035 p-cymene-d!4
93952046 dibenzofuran-d8
93952057 diphenyl ether-dlO
93952079 n-C30-d62
93952080 1,2-dichloropropane-d6
93952091 l,li2-trichloroethane-13C2
93952104 bromodichloromethane-13C
93952115 di-n-butyl phthalate-d4
93952126 diethyl phthalate-d4
93952137 di-n-octyl phthalate-d4
93952148 hexachlorobenzene-13C6
93952159 hexachloroethane-13C
93952160 isophorone-d8
24
25
25
15
16
15
16
26
14
6
7
15
25
25
26
25
25
25
25
25
23
23
25
25
25
27
27
25
25
25
25
25
25
27
27
27
25
25
25
25
25
25
Mean
Recovery (X)
79.7
92.6
65.2
45.9
53.9
48.0
60.5
27.7
44.2
53.0
40.7
45.0
61. 0
83.2
77.2
101.0
35.9
106.0
72.2
90.8
67.6
66.8
88.5
77.7
85.6
95.6
68.7
98.1
66.6
61.4
85.3
79.8
96.3
95.3
106.2
95.7
103.6
64.3
100.3
87.1
56.9
72.2
Std. of
Recovery (X)
15.8
14.5
17.1
20.7
21.0
23.2
24.3
21.4
29.2
34.3
19.5
16.7
15.4
14.5
19.5
44.0
14.7
24.3
68.6
15.2
18.3
29.1
14.5
20.6
66.1
16.9
17.9
47.6
18.4
18.5
14.3
15.3
80.6
8.4
13.0
10.8
17.6
22.6
58.4
12.8
18.6
18.5
Lower
95X C.I.
73.0
86.6
58.1
34.4
42.7
35.2
47.6
19.1
27.4
17.0
22.8
35.8
74.7
77.2
69.3
82.8
29.8
96.0
43.9
84.5
59.7
54.2
82.5
69.2
58.3
88.9
61.6
78.4
59.0
53.8
79.4
73.5
63.0
92.0
101.0
91.4
96.3
55.0
76.2
81.8
49.2
64.5
Upper
95X C.I.
86.4
98.6
72.3
57.3
65.1
60.9
73.4
36.3
61.1
89.0
58.7
54.3
87.4
89.2
85.1
119.2
41.9
116.1
100.6
97.0
75.5
79.4
94.5
86.2
112.8
102.3
75.8
117.7
74.2
69.0
91.2
86.2
129.5
98.6
111.3
100.0
110.8
73.7
124.4
92.3
64.6
79.8
Cmpdf: CAS compound number.
Cmpd Namei Compound name.
Site: Site type.
Location: Sampling location within site.
Phase: Sample phase analyzed (solid/liquid).
Extract: Extraction process (direct/TCLP).
Mean Recovery (%): Mean compound recovery, in percent.
(Calculated for stable isotopically-labeled
organic compounds baaed on recoveries from
unspiked and spiked field samples, and for all
other compounds based on recoveries from
Std. of Recovery (%): Standard deviation of the percent
recoveries.
Lower 95% C.I.: Lower 95% confidence bound on the mean recovery.
(The mean recovery for labeled compounds cannot
be negative, so lower confidence limits were
taken to be non-negative.)
Upper 95% C.I.: Upper 95% confidence bound on the mean recovery.
-------
construct a complete data frame to include them. As a result,
the recoveries are biased somewhat higher and the standard
deviations may be biased somewhat lower than if the not detects
had been included. EPA will regenerate the statement when the
data are available and include it in the record for the Report to
Congress.
Statements of Data Quality for Laboratories
Statements of data quality for the determination of the
analytes in a reference water matrix were also generated. These
are reported in Table 17 as "Statements of Data Quality (Data
Quality Indicators) for Laboratories." "Not detects" have not
been included in these data because of the time needed to
construct a data frame to include them. As a result, the
recoveries may be biased somewhat higher and the standard
deviations may be biased somewhat lower than if the not detects
had been included. EPA will regenerate these statements when the
data are available and include them in the record for the Report
to Congress.
Frequency of Occurrence of Pollutants
Frequency of occurrence was measured by determining the
number of times a given analyte was detected relative to the
number of times it was tested for, regardless of concentration.
Pollutants occurring frequently are more likely to be indigenous
to this industry than those occurring seldom. However, any
frequency information, including the data presented in this
104
-------
tenement oj uaia ucuaxiiy iuaia uiu
for Laboratories
indicators;
Phase =Liquid , Extract =Direct
Cmpdtt
Cmpd Name
O
l/l
50328
51285
53703
56235
56553
59507
60297
62759
67641
67663
67721
71432
71556
74839
74873
74975
75CC3
75014
75092
75252
75274
75343
75354
77474
73591
733-75
73933
79005
79016
79345
83329
84662
84742
85018
85687
86306
86737
86748
87616
87683
67865
88062
88755
S1203
91587
91598
91941
92524
92875
95501
95578
Benzol aIpyrene
2»4-D i ni trophenol
D i benzol a,h)anthracene
Tetrachloromethane
Benzola )anthracene
4-Chloro-3-methylphenol
Diethyl ether
N-Nitrosodimothylamine
2-Propanone
Chloroform
Hexachloroethane
Benzene
1>1>1-Tr 5 chloroethane
Bromomethane
Chloromethane
bromochloromcthane
Chloroethana
Vinyl chloride
Methylene chloride
Tr i bromomethnne
Bromodi chloromethane
111-D i chloroethane
1»1-Dichloroethene
1,3-Cyclopentadi ene > 1»2,3 >4,5,5-hexachl
Isophorone
1t2-Dichloropropane
2-Butanone
1.1,2-Tri chloroathane
Trichloroathene
1,1i2,2-Tetrachloroethane
Acenaphthene
Diethyl phthalate
Di-n-butyl phthalate
Phenanthrene
Butyl benzyl phthalate
N-Ni trosodiphenylamine
Fluorene
Carbazole
1,2 >3-Tri chlorobenzene
Hexachlorobutadi ene
Pentachlorophenol
2,4 >6-Tri chlorophenol
2-Nitrophenol
Naphthalene
2-Chloronaphihalene
beta-Naphthylairrine
3,3'-D i chlorobenzi di ne
Biphenyl
Benzidine
1,2-Oichloroben.tene
2-Chlorocnenol
N
51
47
51
50
51
51
50
51
50
50
51
50
50
50
50
50
50
50
50
50
50
50
50
26
51
50
50
50
50
50
51
51
51
51
51
51
51
51
51
51
49
51
51
51
51
51
50
51
50
II
: -uirecT --- —
Mean
Recovery I'/.}
123.5
120.1
146.2
103.4
123.1
122.1
100.4
95.4
101.1
101.5
156.6
101.4
98.4
100.5
102.9
100.0
102.1
98.6
103.2
101.7
106.3
100.fi
101.2
39.6
123.7
98. 8
80.6
98.3
106.1
99.2
124.5
127.6
123.4
132.1
136.5
119.1
117.2
139.6
102.0
132.8
124.3
125.7
124.9
118.1
122.7
205.2
101.7
130.0
114.6
122.6
117.3
Std. of
Recovery (.'/.}
18.9
15.4
61.5
14.1
19.4
16.4
17.2
20.2
40.2
7.4
68.2
7.3
5.0
5.5
8.3
0.0
7.6
9.7
24.5
19.7
6.7
5.9
9.6
21.4
17.4
6.5
19.7
5.0
10.8
10.4
17. 8
38.4
19.6
21.0
34.4
16.4
14.0
32.6
32.7
31.5
19.4
22.3
27.2
19.9
20.4
96.6
13.1
24.4
23.7
21.4
16.0
Lower
95X C.I.
118.2
115.6
128.9
99.4
117.7
117.5
95.5
89.8
89.7
99.4
137.4
99.3
97.0
98.9
100.5
100.0
99.9
95.9
96.3
96.1
104.4
99.1
98.5
31.0
118.8
97.0
75.0
96.9
103.0
96.3
119.5
116.8
117.9
126.2
126.8
114.4
113.2
130.4
92.8
123.9
118.7
119.4
117.2
112.5
117.0
178.1
98.0
123.1
107.8
116.6
112.8
Upper
95X C.I.
128.8
124.6
163.4
107.4
128.6
126.8
105.2
101.1
112.5
103.6
175.7
103.5
99.9
102.0
105.3
100.0
104.3
101.4
110.2
107.3
108.2
102.5
103.9
48.3
128.6
100.7
86.2
99.8
109. Z
102.2
129.5
138.4
128.9
138.0
146.2
123.7
121.1
148.7
111.2
141.6
129.9
131.9
132.6
123.7
128.4
232.4
105.5
136.8
121.3
128.6
121.8
-------
Table 17 (Cont'd)
Statement of Data Quality (Data Quality Indicators)
for Laboratories
Phase =Liquid > Extract =Direct
Cmpdft
Cmpd Name
95954
9S555
93953
99876
EGQ164
EGD184
EGD191
EGIH92
EGD193
EGD194
EGD429
100027
100414
100425
101553
101848
105679
106467
107028
107062
107131
103601
103883
108907
103952
109068
110565
110758
111444
111911
112403
112958
117817
117840
113741
120127
120821
120832
121142
122394
122667
123911
124185
124481
127184
129000
131113
132649
132650
156605
191242
X
2,4,5-Trichlorophenol
alpha-Terpineol
Nitrobenzene
p-Cymene
2 > 2'-di fluorobiphenyl
37Cl-tetrachlorodibenzo-p-dioxins
13C12-pentachlorodibenzo-p-dioxins
13C12-hexachlorodi benzo-p-di oxi ns
13C12-tetrachlorodi benzofurans
13C12-hexachlorodibenzofurans
13C12-2378-tetrochlorodibenzo-p-dioxin
4-Ni trophenol
Ethylbenzene
Styrene
4-Broraophenyl phenyl ether
Diphenyl ether
2»4-Di ir.ethylphenol
1t4-Dichlorobenzene
2-Propenal
1> 2-0 i chloroethane
Acryloni trile
bis(2-Chloroisopropyl) ether (Chlorines
Toluene
Chlorobenzene
Phenol
2-Picoline
1,4-dichlorobutane
2-Chloroethylvi nyl
bis(2-Chloroethyl)
bi s(2-Chloroethoxy)methane
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
Di-n-octyl phthalate
Hexachlorobenzene
Anthracene
1> 2,4-Tri chlorobenzene
2 >4-D ichlorophenol
2 > 4-D i n i trotoluene
Diphenylamine
1>2-Diphenylhydrazine
1,4-Dioxane
n-Decane
D i bromochloromethane
Tetrachlorethene
Pyrena
1,2-Benzenedicarboxylic acid, dimethyl
Dibenzofuran
D i benzothi ophenu
trans-1,2-Oichloroethene
BenzolqhiIpervlone
ether
Ether
N
49
51
51
51
51
3
3
3
3
3
3
49
50
51
51
51
51
51
50
50
50
51
50
50
51
51
50
46
51
51
51
51
51
51
51
51
51
51
51
51
51
35
51
50
50
51
51
51
51
50
51
Mean
Recovery (X)
111.8
111.7
130.8
118.1
100.0
105.6
79.7
72.3
110.9
96.5
81.6
112.5
100.9
143.7
124.1
119.5
121.5
142.0
83.9
101.3
93.1
125.6
102.3
102.9
119.5
123.4
100.0
116.5
130.1
101.7
154.5
137.1
130.5
118.9
115. &
121.0
120.7
117.6
123.9
113.3
136.5
84.9
135.0
102.3
109.7
124.0
143.8
122.0
123.9
12i:i
Std. of
Recovery I'/.}
27.7
28.4
19.4
21.6
0.0
2.9
7.7
12.7
10.6
15.0
3.2
28.1
7.1
31.1
30.6
16.7
19.8
31.0
44.6
7.3
26.1
11.2
14.8
5.7
18.4
25.0
0.0
74.4
27.3
24.0
50.2
25.3
27.3
17.2
8.6
20.6
18.1
13.0
17.5
20.0
25.8
28.8
53.8
4.6
18.2
18.6
36.8
20.1
21.2
\u
Lower
95X C.I.
103.8
103.7
125.4
112.0
100.0
96.4
60.5
40.6
84.6
59.2
73.7
104.4
98.9
134.9
115.5
114.8
115.9
133.3
71.2
99.3
85.7
122.5
98.1
101.3
114.3
116.4
100.0
94.4
122.4
94.9
140.4
130.0
122.8
114.1
113.4
115.2
115.6
113.9
118.9
107.7
129.2
75.0
119.9
101.0
104.5
118.7
133.4
116.4
118.0
i»:*
Upper
95X C.I.
119.7
119.7
136.3
124.1
100.0
112.9
98.9
103.9
137.1
133.8
89.4
120.6
102.9
152.4
132.7
124.2
127.1
150.8
96.6
103.4
100.5
128.8
106.5
104.5
124.6
130.4
100.0
138.6
137.7
108.4
168.6
144.2
138.2
123.7
118.2
126.8
125.8
121.2
128.8
119.0
143.8
94.8
150.1
103.6
114.9
129.2
154.1
127.7
129.9
IB:!
-------
statement or uata Duality luata tjuanty indicators I
for Laboratories
Phase =Liquid > Extract =Direct
Cmpc'S Cmpd Name
193395 Indeno{l,2,3-cd)pyrene
205992 Benzol bHluoranthene
206440 Fluoranthene
207089 Benzo(k)fluoranthene
203968 Acenaphthylene
2ISO19 Chrysene
460004 bromofluorobenzena
534521 Phenol, 2-methyl-4,6-dinitro-
541731 1,3-Dichlorobensene
544763 n-Hexadecane
593453 n-Octadecane
606202 2,6-Dinitrotoluune
621647 Di-n-propylnitrosamine
629594 n-Tetradecane
629970 n-Docosane
630G13 n-Hexacosane
630024 n-Oc-tacosane
633686 n-Triacontane
646311 n-Tetracosane
666524 acetone-d6
933755 2,3,6-Trichlorophenol
1076433 faenzene-d6
1111882 bromomethane-d3
1111893 chloronethane-d3
1146652 naphthalene-dS
1466017 biphenyl-dlO
1517222 phenanthrene-dlO
1665005 methylene chloride-d2
1718521 pyrene-dlO
1713532 benzo(a)anthracene-dl2
1719035 chrysene-d!2
1719068 anthracene-dlO
2037265 toluene-dS
2199691 l,2-dichlorobenzene-d4
2199704 !,3-dichloroben2ene-d4
2199726 l,2,4-trichlorobenzene-d3
2679892 diethyl ether-dlO
2747582 1,1,l-trichlorocthane-dS
3017956 2-bromo»l-chloropropane
3114554 chlorobenzene-d5
3855821 l,4-dichloroben.-:ene-d4
4165600 nitrobenzene-d5
4165622 phenol-d5
5161295 styrene-d5
6745353 vinyl chloride-d3
70C5723 4-Chlorophenylphenyl ether
10061026 Trans-1i3-Dichloropropene
15067202 acenaphthene-dlO
15716C82 h-C16-d34
16416293 n-C10-d22
16416301 n-C12-d26
N
50
51
51
51
51
51
41
49
51
51
51
51
51
51
51
51
51
51
51
28
49
50
50
50
51
51
51
47
51
51
51
51
50
51
51
51
50
50
50
50
51
51
51
51
50
51
50
51
51
51
51
: -uirect --- —
Mean
Recovery (.'/.)
110.6
106.0
131.8
117.1
147.7
121.3
107.7
123.0
137.5
127.1
123.4
120.2
105.4
97.7
145.4
146.8
136.7
150.7
125.6
86.5
114.0
98.6
103.0
130.1
82.6
95.9
100.0
68.2
106.6
106.8
113.7
108.1
108.9
70.5
60.2
76.5
92.8
102.2
100.0
113.1
59.4
80.4
73.2
49.6
97.1
131.5
97.4
91.3
84.1
46.0
61.7
Std. of
Recovery (X)
43.1
21.7
22.1
14.3
34.6
19.9
26.5
15.7
34.1
18.8
29.8
18.6
25.8
27.0
39.4
42.8
47.0
33.4
13.1
19.6
27.5
5.2
30.7
68.9
16.0
14.9
18.2
7.2
17.2
21.6
20.8
17.9
15.4
23.5
17.3
15.7
10.7
15.7
0.0
17.8
17.6
10.8
20.2
14.0
35.5
23.1
7.7
16.3
11.0
15.6
13.5
Lower
95X C.I.
98.3
99.9
125.6
113.1
138.0
115.7
99.3
118.5
127.9
121.8
115.0
115.0
98.1
90.1
134.3
134.7
123.5
141.4
121.9
78.9
106.1
97.1
94.3
110.5
78.1
91.7
94.9
66.1
101.7
100.7
107.8
103.1
104.5
63.9
55.4
72.1
89.8
97.7
100.0
108.1
54.4
77.3
67.5
45.7
87.0
125.0
95.2
86.7
81.0
Ik,
Upper
95X C.I.
122.8
112.1
138.0
121.1
157.4
126.9
116.0
127.5
147.1
132.3
131.8
125.4
112.6
105.3
156.4
158.8
149.9
160.1
129.3
94.1
121.9
100.0
111.8
149.6
87.1
100.1
105.1
70.3
111.4
112.9
119.5
113.2
113.3
77.1
65.1
80.9
95.8
106.7
100.0
118.2
64.3
83.4
78.8
53.6
107.1
138.0
99.6
95.9
87.2
50.4
65.5
-------
Table 17 (Cont'd)
Statement of Data Quality (Data Quality Indicators)
for Laboratories
Cmpd*
Cmpd Mane
Phase =Liquid , Extract =
N
O
00
16416323
17070070
19199918
222S0735
25837052
31717449
32463496
32488509
33262292
33685540
33984053
37055519
42366472
53389267
53807264
56912777
62369679
63466717
7280?814
81103799
85380741
92S?0636
93951667
93951678
93951689
93951690
93951703
93951714
93951725
93951736
93951747
93951751
93951758
93951769
93951770
93951792
93951805
93951849
93S31S50
93951861
93951372
93951894
93951907
93951918
93951929
93951930
93951941
93951952
93951974
93951985
93951996
n-C24-d50
l,2-dichloroethane-d4
chloroethane-d5
11 l-dichloroeth1.2»2-tetrachloroethane-d2
acrolein-d4
di phenylaraine-dl0
•trans-l>2-dichlorethene-d3
methyl ethyl ketone-d3
acryloni triIe-d3
1,1-d ichloroethane-d3
n-C20-d42
benzol a)pyrene-d!2
bromoform-13C
fluorene-dlO
pentachlorophenol-13C6
banzidine-d8
benzolghi)perylene-d!2
bis(2-chloroi5opropyl) ether-d!2
2 f 4-di ni trotoluene-d3
fluoranthene-dlO
hexachlorobutadiene-13C4
hexachlorocyclopentadi ene-13C4
4-ehloro-3-methylphenol-d2
2-chlorophenol-d4
2 »4-dichlorophenol-d3
2-ni trophenol-d4
2 >4-diraethylphenol-d3
2-methyl-4>6-dinitrophenol-d2
2,4-dinitrophenol-d3
4-ni trophenol-d4
21416-tri chlorophenol-d2
2-chloronaphthalene-d7
4-chlorophenyl phenyl ether-d5
trans-1,3-dichloropropene-d4
bis(2-ethylhexyl) phthalate-d4
dimethyl phthalate-d4
2,6-dini trotoluone-d3
3»3' -d i chl orcbenz i d i ne-d6
1,2-diphenylhydrazine-dlO
alpha-p 5 coli ne-d7
beta-naphthylaraine-d7
N-ni trosodiphenylamine-d6
acer»aphthylene-d8
benzolb)fluoranihene-dl2
dibromochloromethane-13C
51
50
50
50
50
50
50
50
51
50
25
51
50
2
49
50
51
51
47
51
49
50
51
51
51
51
51
18
51
51
51
49
51
49
47
51
49
51
51
50
51
51
51
51
51
51
51
51
51
fo
: -uirecT
Mean
Recovery I'/.t
110.6
95.5
83.5
92.1
111.2
92.1
83.2
99.2
100.1
95.7
75.8
88.1
94.1
16.3
90.2
91.2
98.9
109.6
102.1
99.3
77.6
63.8
107.2
82.8
98.0
103.5
73.9
39.4
64.5
73.5
82.0
84.3
51.1
87.1
62.7
78.8
91.3
87.5
87.7
87.2
108.8
48.7
94.4
104.5
88.1
67.6
75.7
92.6
76.4
119.4
102.7
Std. of
Recovery (X)
26.4
18.2
22.3
16.1
18.6
11.8
16.6
23.2
17.7
11.4
36.4
12.6
16.1
3.7
19.9
14.1
14.4
33.4
40.7
17.5
26.7
31.9
43.5
17.6
18.9
16.5
18.7
14.0
17.5
14.6
24.4
16.4
10.8
22.4
33.4
32.5
16.7
14.0
12.2
8.1
21.4
17.4
15.0
21.2
12.5
13.9
31.6
12.7
8.7
46.2
11.3
Lower
95X C.I.
103.2
90.3
77.2
87.5
105.9
88.7
78.5
92.6
95.1
92.5
60.8
84.6
89.5
0.0
84.5
87.2
94.8
100.2
90.1
94.4
69.9
54.7
94.9
77.9
92.7
98.9
68.7
32.4
79.5
69.4
75.1
79.6
48.1
80.7
52.9
69.6
86.5
83.6
84.3
84.9
102.8
43.8
90.2
98.6
64.6
63.7
66.8
89.0
74.0
106.4
99.4
Upper
95X C.I.
118.0
100.7
89.8
96.7
116.5
95.4
87.9
105.7
105.1
98.9
90.8
91.7
98.7
49.6
96.0
95.2
102.9
119.0
114.1
104.2
85.2
72.8
119.4
87.8
103.3
108.2
79.2
46.3
89.4
77.6
88.9
89.0
54.1
93.6
72.5
87.9
96.1
91.4
91.2
89.5
114.9
53.6
98.6
110.5
91.6
71.5
64.6
96.1
78.8
132.4
105.9
-------
Crcpdft
93952002
93952013
93952024
93952035
93952046
93952057
93952068
93952079
93952080
93952091
93932104
93952115
93952126
93952137
93952148
93952159
93952160
1-001
1-002
_, 1-003
0 1-004
VO 1-005
1-006
1-007
1-009
1-010
1-011
1-012
57125
7429905
7439896
7439921
7439954
7439965
7439976
7439987
7440020
7440097
7440224
7440235
7440280
7440315
7440326
7440360
7440382
7440393
7440417
7440428
7440439
7440473
7440484
for Lat
Cmpd Name
tr i chloroethene-13C2
benzol k)fluoranthene-d!2
bis(2-chlorocthyl) ether-d8
p-cymene-d!4
di benzof uran-d8
diphenyl ethei — dlO
alpha -terpineol-d3
n-C30-d62
1 >2-dichloropropane-d6
1,1, 2-tr i chloroethane-13C2
bromod i chlorome thane- 1 3C
di-n-butyl phthalate-d4
di ethyl phthalate-d4
di-n-octyl phthalate-d4
hexachlorobenzene- 1 3C6
hexachloroe thane- 13C
i sophorone-d8
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Hydrogen ion
Oil and grease
Residue, non-filterable
Residue, filterable
Specific conductivity
Total organic carbon
Cyanides (soluble salts and complexes) N
Aluminum
Iron
Lead
Magnesium
Manganese
Mercury
Molybdenum
Nickel
Potassium
Silver
Sodium
Thallium
Tin
Titanium
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Chromium
Cobalt
>orator
i Extra
N
50
51
51
51
51
51
22
51
50
50
50
51
51
51
51
51
51
2
47
64
37
32
73
6
34
36
31
58
86
61
78
44
67
48
40
28
48
48
73
58
64
30
29
65
64
53
41
33
48
48
44
ies
Mean
Recovery (X)
83.2
113.2
77.2
68.9
93.9
89.7
66.1
96.6
97.7
101.7
97.5
96.7
66.9
118.4
98.2
52.6
80.3
106.0
100.2
102.0
93.9
99.7
100.4
94.3
98.0
100.6
99.6
103.8
96.2
97.8
100.1
104.6
99.1
100.5
101.0
98.9
98.8
96.4
100.0
98.3
99.6
95.8
99.0
97.6
98.9
100.8
99.9
96.6
101.4
181:2
Std. of
Recovery (X)
8.7
42.9
12.1
18.9
15.1
16.9
18.5
22.6
4.3
8.8
7.8
21.4
22.2
27.9
15.4
20.6
11.7
0.0
15.5
5.7
7.7
4.0
1.0
6.3
2.6
7.3
1.4
9.1
6.1
6.2
5.2
9.2
5.7
4.2
10.9
5.7
4.3
4.1
7.5
4.4
9.0
9.2
3.6
9.5
9.7
5.2
4.7
5.7
3.8
*:!
Lower
95X C.I.
80.7
101.1
73.8
63.6
89.7
85.0
57.9
90.3
96.4
99.2
95.3
90.6
60.7
110.6
93.8
46.8
77.0
106.0
95.7
100.6
91.4
98.3
100.2
87.7
97.1
98.1
99.1
101.4
94.9
96.2
98.9
101.8
97.7
99.2
97.5
96.7
97.5
95.2
98.3
97.1
97.3
92.4
97.6
95.3
96.5
99.4
98.4
94.6
100.2
99 . 0
100.0
Upper
95X C.I.
85.7
125.2
80.6
74.2
98.2
94.5
74.3
103.0
98.9
104.2
99.7
102.7
73.2
126.3
102.5
58.4
83.5
106.0
104.8
103.4
96.5
101.1
100.6
101.0
98.9
103.1
100.2
106.2
97.5
99.4
101.3
107.4
100.5
101.7
104.5
101.1
100.1
97.6
101.7
99.4
101.8
99.3
100.3
100.0
101.3
102.3
101.4
98.6
102.5
181:2
-------
Cmpdft
7440508
7440622
7440655
7440666
7440702
7664417
7782492
16984488
18496258
Cmpd Name
Copper
Vanadium
Yttrium
Zinc
Calcium
Ammonia
Selenium
Fluoride
Sulfide
Table 17 (Cont'd)
Statement of Data Quality (Data Quality Indicators)
for Laboratories
Phase =Liquid , Extract ^Direct
N
43
43
25
53
78
51
64
56
33
Mean
Recovery (X)
98.2
99.5
98.6
101.2
99.5
92.2
99.9
100.6
93.0
Std. of
Recovery (X)
5.3
6.3
3.4
4.2
5.4
4.8
7.0
5.8
4.5
Lower
95X C.I.
96.6
97.5
97.2
100.0
98.3
90.9
98.2
99.0
91.4
Upper
95X C.I.
99.8
101.4
100.0
102.3
100.7
93.6
101.7
102.1
94.6
CmpdI: CAS compound number.
Cmpd Name: Compound name.
Site: Site type.
Location: Sampling location within site.
Phase: Sample phase analyzed (solid/liquid).
Extracts Extraction process (direct/TCLP).
Mean Recovery (%): Mean compound recovery, in percent.
(Calculated for all compounds based on
recoveries from standards spiked into reagent
water.)
Std. of Recovery (%): Standard deviation of the percent
recoveries.
Lower 95% C.I.: Lower 95% confidence bound on the mean recovery.
Upper 95% C.I.: Upper 95% confidence bound on the mean recovery.
-------
section, must be qualified by noting that the pooling of data to
gain a sufficient statistical sample size may mix results that
should not be mixed, and conclusions drawn are therefore
indicators rather than hard facts.
Frequently Occurring Organic Analytes
Organic analytes that occurred frequently and that were
expected in samples collected from this industry (based on data
from the Offshore study and from the technical literature) were
normal hydrocarbons, aromatic hydrocarbons, and organic acids.
Normal Hydrocarbons
Normal hydrocarbons, C12 through C30 (the carbon
range tested) are the predominant organic compounds detected in
liquid and solid samples. The most frequently occurring normal
hydrocarbon is n-hexadecane, detected in approximately 85 percent
of the solid samples and 65 percent of the liquid samples. The
most frequently occurring hydrocarbon in TCLP extracts in
n-decane, detected in approximately 15 percent of the extracts.
Aromatic Hydrocarbons
Aromatic hydrocarbons, including single ring and
polynuclear compounds, were detected in solid samples, liquid
samples, and TCLP extracts. Benzene, toluene, and ethyl benzene
are present in approximately half of the liquid and solid samples
and approximately one-third of the TCLP extracts. Polynuclear
aromatics detected ranged from naphthalene and substituted
111
-------
naphthalenes through four ring systems. Biphenyl was the only
linked ring hydrocarbon tested for and it was detected. The
terpenoid hydrocarbon p-cymene was also detected. Naphthalene
occurred with a frequency of approximately 40 percent in solid
samples, 60 percent in the liquid samples/ and 30 percent in the
TCLP extracts. 2-methylnaphthalene occurred in a greater
proportion of the TCLP extracts than in the direct analysis of
the liquid or solid samples. This higher proportion of
occurrence may indicate that this compound may be more readily
leached from samples by the TCLP. Alternative explanations may
be that a lower detection limit was achieved using the TCLP than
for direct analysis of the wastes, because of the interference
from other substances in the direct analysis, or that it is
formed in the leaching process, although this latter process is
unlikely, based on the chemistry involved.
Organic Acids
Phenol; 2,4-dimethylphenol7 o-cresol; p-cresol;
benzoic acid; and hexanoic were detected at a frequency of
approximately 20 to 45 percent (depending on the analyte) in
liquid samples, but at a much lower frequency (less than five
percent) in solid samples and TCLP extracts.
Other Organic Compounds Detected
Heterocyclic Ring Compounds: dibenzofuran and
dibenzothiophene were detected in a few samples.
112
-------
Ketones: acetone (2-propanone), methyl ethyl
ketone (MEK)(2-butanone), methyl isobutyl ketone
(MIBK)(4-methyl-2-pentanone), and acetophenone, although acetone
is likely attributable to sampling or bottle cleaning
contamination.
Phthalates: bis(2-ethylhexyl) phthalate was
detected in approximately half of the samples; the other
phthalates were detected in approximately five percent of the
samples.
Comparison with Results from the "Offshore Oil and Gas Report"
The report entitled "Oil and Gas Extraction Industry,
Evaluation of Analytical Data Obtained from the Gulf of Mexico
Sampling Program," Volume I, Discussion, Prepared by Burns and
Roe Industrial Services Corporation, Paramus, New Jersey,
February 4, 1983, is commonly referred to as the "Offshore Oil
and Gas Report," and the study it encompassed is commonly
referred to as "The 30 Platform Study." The report presents
results of a study of produced waters at 30 oil and gas
production platforms located in the Gulf of Mexico. The
objective of the study was to "characterize the quantities of
selected conventional, non-conventional, and priority pollutants
present in the produced water discharge from this segment of the
industry."
113
-------
The analytes tested for in the 30 platform study were
considerably fewer in number than tested for in this Project.
The Offshore list included 88 organics, seven metals/ Oil &
Grease, Chloride, and Total Dissolved Solids.
Because the 30 Platform Study was specific to produced
waters, and this Project included drilling muds, waste pits,
centralized treatment systems, and other site categories, the
frequency and concentrations cannot be directly compared.
However, it is useful to compare the list of analytes detected in
the two data sets. These data are summarized in Table 18. Only
the analytes detected in the 30 Platform Study are compared.
114
-------
Table 18. Comparison of Analytes Detected in the
"30 Platform Study" and in This Project
CAS #
1-001
1-002
1-003
1-004
1-005
1-006
1-007
1-008
1-009
1-010
1-011
1-012
1-013
1-014
1-015
1-016
1-018
1 331
50328
53703
56325
56553
57125
58902
59507
65850
67641
67663
71432
71556
75092
75150
75274
75343
75694
78591
78933
79005
79016
79345
83329
84662
84742
85018
86737
87865
91203
91576
Name
Total volatile organic carbon
Biochemical Oxygen Demand
Chloride
Chemical Oxygen Demand
Nitrate/nitrite
Hydrogen ion
Oil and grease
§esidue, total
Residue, non-fiterable
Residue, filterable
Specific conductivity
Total organic carbon
Ignitability
Corrosivity
Reactivityl "
Oil and Grease (retort)
Salinity
Tetrachlorodibenzo-p-dioxins
Benzo( ajpyrene
Dibenzo ( a ,h ) anthracene
Tetrachloroethane
Benzo ( a ) anthracene
Cyanides (soluble salts and co
2,3,4, 6-Tetrachlorophenol
4-Chloro-3-methylphenol
Benzoic acid
2-Propanone
Chloroform
Benzene
1,1, 1-Trichloroethane
Methylene chloride
Carbon disulfide
Brcrnodichloromethane
1 , 1-Dichloroethane
Trichlorofluoromethane
Isophorone
2-Butanone
1,1, 2-Trichloroethane
Trichloroethene
1,1,2, 2-Tetrachloroethane
Acenaphthene
Diethyl phthalate
Di-n-butyl phthalate
Phenanthrene
Fluorene
Pentachlorophenol
Naphthalene
2-Methylnaphthalene
30 Plat-
form Study
No test
No test
Detected
No test
No test
No test
Detected
No test
Detected
No test
No test
No test
No test
No test
No test
No test
No test
No test
Detected
Detected
Detected
Detected
No test
No test
Detected
No test
No test
Detected
Detected
Not detected
Detected
No test
Not detected
Detected
No test
Not detected
No test
Not detected
Not detected
Not detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
No test
This
Project
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Not detected
Not detected
Not detected
Not detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
115
-------
Table 18 (Cont'd).
Comparison of Analytes Detected in the
"30 Platform Study" and in This Project
GAS ft
91941
92524
95487
95534
98555
98862
99876
100414
100425
100516
105679
106445
107028
107062
107131
108101
108601
108883
108907
108952
108985
110758
111444
112403
112958
117817
117840
120127
121142
123911
124185
127184
129000
131113
132649
132650
142621
205992
207889
218019
544763
591786
593453
615225
629594
629970
630013
630024
Name
3,3' -Dichlorobenzidine
Biphenyl
o-Cresol
o-Toluidine
alpha-Terpineol
Acetophenone
p-Cymene
Ethylbenzene
Styrene
Benzyl alcohol
2 , 4-Dimethy Iphenol
p-Cresol
2-Propenal
1 , 2-Dichloroethane
Acrylonitril e
4-Methyl-2-pentanone
bis(2-Chloroisopropyl) ether
Toluene
Chlorobenzene
Phenol
Benzenethiol
2-Chloroetyl vinyl ether
bis(2-Chloroethyl) ether
n-Dodecane
n-Eicosane
bis(2-Ethylhexyl) phthalate
Di-n-octyl phthalate
Anthracene
2 , 4-Dinitrotoluene
1,4-Dioxane
n-Decane
Tetrachloroethene
Pyrene
Dimethyl phthalate
Dibenzofuran
Dibenzothiophene
Hexanoic acid
Benzo(b) fluoranthene
Benzo(k)fluoranthene
Chrysene
n-Hexadecane
2-Hexanone
n-Octadecane
2- (methylthio )benzothiazole
n-Tetradecane
n-Docosane
n-Hexacosane
n-Octacosane
30 Plat-
form Study
Not detected
No test
No test
No test
No test
No test
No test
Detected
No test
No test
Detected
No test
No test
Not detected
Not detected
No test
Detected
Detected
Detected
Detected
No test
Not detected
Detected
No test
No test
Detected
Detected
Detected
Not detected
No test
No test
Not detected
Not detected
Detected
No test
No test
No test
Detected
Detected
Detected
No test
No test
No test
No test
No test
No test
No test
No test
This
Project
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Not detected
Detected
Detected
Detected
Detected
Detected
Not detected
Detected
Detected
Detected
Detected
Not detected
Detected
Detected
Detected
Detected
Detected
Not detected
Detected
Detected
Detected
Not detected
Not detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
116
-------
Table 18 (Cont'd).
Cotparison of Analytes Detected in the
"30 Platform Study" and in This Project
CAS f
638686
646311
832699
1576676
1730376
1746016
7429905
7439896
7439910
7439921
7439932
7439954
7439965
7439976
7439987
7440020
7440097
7440213
7440224
7440235
7440246
7440280
7440291
7440315
7440326
7440337
7440360
7440382
7440393
7440417
7440428
7440439
7440451
7440473
7440484
7440508
7440622
7440655
7440666
7440699
7440702
7553562
7664417
7704349
7723140
7782492
16984488
18496258
Name
n-Trlacontane
n-Tetracosane
1-Methylphenanthrene
3, 6-Dimethylphenanthrene
1-Methylfluorene
2,3,7, 8-Tetr achloro-dibenzo- p-
Aluminum
Iron
Lanthanum
Lead
Lithium
Magnesium
Manganese
Mercury
Molybdenum
Nickel
Potassium
Silicon
Silver
Sodium
Strontium
Thallium
Thorium
Tin
Titanium
Tungsten
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Cerium
Chromium
Cobalt
Copper
Vanadium
Yttrium
Zinc
Bismuth
Calcium
Iodine
Ammonia
Sulfur
Phosphorus
Selenium
Fluoride
Sulfide
30 Plat-
form Study
No test
No test
No test
No test
No test
No test
No test
Detected
No test
Detected
No test
No test
No test
No test
No test
Detected
No test
No test
Not detected
No test
No test
No test
No test
No test
No test
No test
No test
No test
No test
No test
No test
Detected
No test
Not detected
No test
Detected
No test
No test
Detected
No test
No test
No test
No test
No test
No test
No test
No test
No test
This
Project
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
Detected
117
-------
118
-------
GLOSSARY AND ABBREVIATIONS
API - American Petroleum Institute.
Barrel (BBL) - Forty-two United States gallons at 60°F.
BOE>5 = Five Day Biochemical Oxygen Demand Test.
BPT - Best Practicable Technology.
BS&W - Bottom sediment and water carried with the oil.
Generally, pipeline regulation limits BS&W to 1 percent of the
volume of oil.
CA DOHS - California Department of Health Services.
Casing - Large steel pipe used to "seal off" or shut out" water
and prevent caving of loose gravel formations when drilling a
well. When the casings are set/ drilling continues through and
below the casing with a smaller bit. The overall length of this
casing is called the string of casing. More than one string
inside the other may be used in drilling the same well.
Centralized Combined Mud/Produced Water Disposal Pit - An
excavated or above grade earthen impoundment remotely located
from the oil or gas operations from which it received produced
fluids and drilling fluids. Centralized pits usually receive
fluids from many wells, leases, or fields.
Centralized Drilling Waste Disposal Pit - An excavated or above
grade earthen impoundment remotely located from the drilling
operations it receives drilling muds from. Centralized pits
usually receive fluids from many drilling sites.
Centralized Produced Water Disposal Pit - An excavated or above
grade earthen impoundment remotely located from the oil or gas
operations from which it receives produced fluids. Centralized
pits usually receive fluids from many wells, leases, or fields.
Centralized Treatment Facilities (Mud or Produced Water) - Any
facility accepting drilling fluids or produced fluids for
processing. This definition encompasses municipal treatment
plants, private treatment facilities, or publicly-owned treatment
works for treatment of drilling fluids or produced fluids.
These facilities usually accept a spectrum of wastes from a
number of oil, gas, or geothermal sites, or in combination with
wastes from other sources.
CFR - Code of Federal Regulations.
119
-------
Christinas Tree - Assembly of fittings and valves at the tip of
the casing of an oil well that controls the flow of oil from the
well.
Clean Water Act (CWA) - The Federal Water Pollution Control Act
Amendments of 1972 (33 U.S.C. 1251 et sec.)* as amended by the
Clean Water Act of 1977 (Pub. L. 95-217).
Closed-In - A well capable of producing oil or gas, but
temporarily not producing.
CLP - Contract Laboratory Program (Superfund).
COD - Chemical Oxygen Demand.
Completion Operations - Work performed in an oil or gas well
after the well has been drilled to the point where the production
string of casing is to be set, including setting the casing,
perforating, artificial stimulation, production testing and
equipping the well for production, all prior to the commencement
of the actual production of oil or gas in paying quantities, or
in the case of an injection or service well, prior to when the
well is plugged and abandoned.
Condensate - Hydrocarbons which are in the gaseous state under
reservoir conditions but which become liquid either in passage up
the hole or at the surface.
Connate Water - Water that probably was laid down and entrapped
with sedimentary deposits as distinguished from migratory waters
that have flowed into deposits after they were laid down.
Cuttings - Small pieces of formation that are the result of the
chipping and/or crushing action of the bit.
Cyclone - Equipment, usually cyclone type, for removing drilled
sand from the drilling mud stream and from produced fluids.
Desilter - Equipment, normally cyclone type, for removing
extremely fine drilled solids from the drilling mud stream.
Development Facility - Any fixed or mobile structure addressed by
this document that is engaged in the drilling and completion of
productive wells.
Disposal Well - A well through which water (usually salt water)
is returned to subsurface formations.
DQO - Data Quality Objective.
Drill Cuttings - Particles generated by drilling into subsurface
geologic formations and carried to the surface with the drilling
fluid.
120
-------
Drill Pipe - Special pipe designed to withstand the torsion and
tension loads encountered in drilling.
Drilling Fluids - Drilling fluids are circulated down the drill
pipe and back up the hole between the drill pipe and the walls of
the hole, usually to a surface pit. Drilling fluids are used to
lubricate the drill bit, to lift cuttings, to seal off porous
zones, and to prevent blowouts. There are two basic drilling
media: muds (liquid) and gases. Each medium is comprised of a
number of general types. The type of drilling fluid may be
further broken down into numerous specific formulations.
Drilling Mud (Reserve) Pit - An excavated or above grade earthen
impoundment on a well site that holds drilling mud, connate
water, stimulation fluids, completion fluids, or other wastes
produced by or associated with drilling.
Dry Hole - A non-producing well.
EMSL-LV - Environmental Monitoring System Laboratory, Las Vegas.
Enhanced Oil Recovery (ref. 1, definition not copied in
entirety)-The increased recovery from a pool achieved by
artificial means or by the application of energy extrinsic to the
pool, which artificial means or application includes pressuring,
cycling, pressure maintenance or injection to the pool of a
substance or form of energy but does not include the injection in
a well of a substance or form of energy for the sole purpose of
(1) aiding in the lifting of fluids in the well, or (2)
stimulating the reservoir at or near the well by mechanical,
chemical, thermal, or explosive means.
EPA - United States Environmental Protection Agency.
Exploration Facility - Any fixed or mobile structure addressed by
this document that is engaged in the drilling of wells to
determine the nature of potential hydrocarbon reservoirs.
Field - The area around a group of producing wells.
Flocculation - The combination or aggregation of suspended solid
particles in such a way that they form small clumps or tufts
resembling wool.
Flowing Well - A well which produces oil or gas without any means
of artificial lift.
Formation - Various subsurface geological strata penetrated by
well bore.
Free Water Knockout - An oil/water separation tank at atmospheric
pressure.
121
-------
Gas-Oil Ratio - Number of cubic feet of gas produced with a
barrel of oil.
Gathering Line - A pipeline, usually of small diameter, used in
gathering crude oil from the oil field to a point on a main
pipeline.
GC - Gas chromatography.
Gun Barrel - An oil-water separation vessel.
IBM - International Business Machines.
ICP - Inductively coupled plasma spectrometry.
Inhibitor - An additive which prevents or retards undesirable
changes in the product. Particularly, oxidation and corrosion;
and sometimes paraffin formation.
Injection - Introduction of drilling fluids or produced fluids
into an underground geologic formation, usually for disposal
purposes.
Invert Oil Emulsion Drilling Fluid - A water-in-oil emulsion
where fresh or salt water is the dispersed phase and diesel,
crude, or some other oil is the continuous phase. Water
increases the viscosity and oil reduces the viscosity.
ITD - Industrial Technology Division in the Office of Water
Regulations and Standards in the Office of Water.
Location (Drill Site) - Place at which a well is to be or has
been drilled.
Location (Sample Point) - Place within a pit or process at which
a sample has been taken.
Marginal Well - An oil or gas well which produces such a small
volume of hydrocarbons that the gross income therefrom provides
only a small margin of profit, or, in many cases, does not even
cover the cost of production. ("Marginal well" should be
distinguished from the definition for "stripper well" in 44 FR
22073.)
Mud Pit - A steel or earthen tank which is part of the surface
drilling mud system.
Mud Pump - A reciprocating, high pressure pump used for
circulating drilling mud.
Multiple Completion - A well completion which provides for
simultaneous production from separate zones.
NCC - National Computer Center.
122
-------
NPDES Permit - A National Pollutant Discharge Elimination System
permit issued under Section 402 of the Act.
NSPS - New source performance standards.
OSW - Office of Solid Waste.
OWRS - Office of Water Regulations and Standards.
PC - Personal computer.
Priority Pollutants - The 65 pollutants and classes of pollutants
declared toxic under Section 307(a) of the Act. Appendix C
contains a listing of specific elements and compounds.
Produced Sand - Slurried particles used in hydraulic fracturing
and the accumulated formation sands and scale particles generated
during production.
Produced Water - The water (brine) brought up from the
hydrocarbon-bearing strata during the extraction of oil and gas,
and can include formation water, injection water, and any
chemicals added downhole or during the oil/water separation
process.
Production Facility - Any platform or fixed structure addressed
by this document that is used for active recovery of hydrocarbons
from producing formations.
Publicly Owned Treatment Works (POTWs) - A treatment facility as
defined by section 212 of The Act,which is owned by a state or
municipality. (Refer to The Act, below.) An "approved POTW
treatment program" or "Program" or "Pretreatment Program" means a
program administered by at POTW that meets the requirements
established in 40 CFR 403, and which has been approved by a
Regional Administrator or State Director in accordance with 40
CFR 403.
QA/QC - Quality Assurance/Quality Control.
RCRA - The Resource Conservation and Recovery Act of 1976, as
amended.
SAS - Statistical Analysis System.
SCC - Sample Control Center.
Separation - A process whereby liquid hydrocarbons are separated
from gas. The term is sometimes used to describe a relatively
simple process distinguished from fractionation.
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Stimulation - Any action taken by well operator to increase the
inherent productivity of an oil or gas well including, but not
limited to, fracturing, shooting or acidizing, but excluding
cleaning out, bailing or workover operations.
Stripper Wells - Wells in a field producing an average of less
than 10 barrels of oil per calendar day per well. Water
injection wells and gas wells are excluded from the calculation
of average daily oil production for a field.
Supernatant - A liquid or fluid phase of any earthen pit
containing wastes.
Tank Bottom Sludge - Sediment, oil, water, and other substances
that tend to concentrate in the bottom of production field
vessels, especially stock tanks, are called field tank bottom
sludges. This layer of sludge may be periodically removed to
prevent oil contamination.
TCLP - Toxicity Characteristic Leaching Procedure.
TSS - Total Suspended Solids.
Workover - To clean out or otherwise work on a well in order to
increase or restore production. A typical workover is cleaning
out a well that has sanded up. Tubing is pulled, the casing and
bottom of the hole washed out with mud, and (in some cases)
explosives set off in the hole to dislodge the silt and sand.
Workover Fluids - Any type of fluid used in the workover
operation of a well.
U.S. Environment^ Protection Agency
Region 5, library (PI-12J)
77 West Jackson Boulevard, 12th Floor
Chicago, IL 60604-3590
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