N O V E M B E R 2 0 0 3
Assessment of Drain Inlet
Cleaning and Waste Disposal
CTSW- RT- 03- 091.51.43
California Department of Transportation
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation i
November 2003
Table of Contents
INTRODUCTION............................................................................................................. 1
DECANTING SITES INCLUDED IN THIS STUDY................................................... 3
ASSESSMENT OF DRAIN INLET CLEAN- OUT OPERATIONS............................ 5
LOCATION OF CLEAN- OUT OBSERVATIONS ..................................................................... 5
OVERVIEW OF CLEAN- OUT OPERATIONS......................................................................... 5
CLEAN- OUT ASSESSMENT OBSERVATIONS...................................................................... 8
MONITORING METHODS.......................................................................................... 10
QUALITY ASSURANCE/ QUALITY CONTROL ( QA/ QC)..................................... 13
QA/ QC METHODS ......................................................................................................... 13
QA/ QC RESULTS........................................................................................................... 14
DECANTING WASTE MONITORING RESULTS................................................... 16
SUMMARY OF MONITORING RESULTS............................................................................ 16
DECANTING SITE ASSESSMENT............................................................................. 18
GENERAL OBSERVATIONS.............................................................................................. 18
DECANTING- PIT SITE SPECIFIC ASSESSMENT................................................................. 20
SUMMARY OF OBSERVATIONS ....................................................................................... 22
DATA OBSERVATIONS AND CONCLUSIONS ...................................................... 23
WASTE CHARACTERISTICS............................................................................................. 23
COMPARISON OF RESULTS TO REGULATORY LIMITS...................................................... 23
RECOMMENDATIONS................................................................................................ 25
OPERATIONAL RECOMMENDATIONS .............................................................................. 25
DECANTING- PIT SITE RECOMMENDATIONS ................................................................... 25
WASTE MANAGEMENT RECOMMENDATIONS .................................................................. 26
Appendices
A. Site Maps
B. Decanting Waste Characterization Sampling and Analysis Plan
C. Monitoring Results
D. QA/ QC Methods and Results
E. Probability Plots
F. Site Evaluation Summary
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 1
November 2003
INTRODUCTION
As part of Caltrans ongoing efforts to maintain State highways, the Department conducts
extensive cleaning of its drainage system including drain inlets. VactorTM trucks are often used
to remove waste material from the drainage system. The waste material from the VactorTM is
emptied at designated decanting sites, where the material is stored and allowed to dry. Dry waste
is ultimately removed from the decanting sites and transported to landfills for final disposal, or
reused as highway fill material for maintenance projects.
Caltrans current National Pollutant Discharge Elimination System ( NPDES) Statewide Storm
Water Permit ( Order No. 99- 06- DWQ), Section I. 1. c requires the management of waste
generated from drainage system cleaning. All waste from the drainage system that poses a threat
to water quality must be removed and disposed of properly.
The purpose of this report is to 1) provide an assessment of Caltrans District 4 VactorTM
operations and current Best Management Practices ( BMPs) for cleaning drain inlets; 2) provide a
characterization of the dry waste present at decanting sites; 3) provide assessment of current
decanting sites; and 4) provide recommendations for the placement and configuration of
decanting sites and waste management.
The approach used in this study is summarized as follows. First, all of the District 4 decanting
sites were identified and located. Drain inlet clean- out operations were observed and assessed.
Each of the identified decanting sites was inspected and observations were made regarding
general site characteristics. During decanting site inspections, decanted waste material samples
were collected and delivered to an analytical laboratory for analyses. The analytical results were
then compiled, evaluated for data quality, and compared to hazardous waste limitations.
This report is organized in major sections as follows:
• Decanting Sites Included in This Study – This section presents the locations of the
decanting sites visited for the purpose of sample collection and site assessment.
• Assessment of Drain Inlet Clean- Out Operations – This section provides a description of
observed drain inlet clean- out field operations.
• Monitoring Methods – This section provides an overview of methods used in the
collection of dry waste samples from decanting sites.
• Quality Assurance/ Quality Control ( QA/ QC) – This section presents the results of
QA/ QC analyses associated with decanting site dry waste monitoring results.
• Decanting Waste Monitoring Results – This section presents the analytical results from
the decanting waste monitoring effort.
• Decanting Site Assessment – This section provides observations made during decanting
site visits.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 2
November 2003
• Data Observations and Conclusions – This section provides summary statistics and
conclusions regarding drain inlet clean- out waste analytical results.
• Recommendations – This section provides recommendations regarding drain inlet
cleaning operations, decanting sites, and waste management.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 3
November 2003
DECANTING SITES INCLUDED IN THIS STUDY
District 4 maintains numerous decanting sites throughout the San Francisco Bay Area. All
decanting sites in use at the time of this study are included in this report. A list of the decanting
sites and their locations is provided in Table 1. Maps showing the locations of the decanting
sites in District 4 are provided in Appendix A. Table 1 lists 18 decanting sites; however, Site 7
was determined to no longer be in use as a decanting site. Therefore, the number of decanting
sites included in this study totals 17. These decanting sites are located in a variety of
surroundings, from urban interstates to rural highways. The drain inlet clean- out waste deposited
at these decanting sites is collected from areas throughout the entire Bay Area.
For the purpose of this report, decanting sites are defined as sites that receive VactorTM waste
from drainage system clean- out and maintenance operations. These sites include decanting- pits
where drain inlet clean- out material is deposited and allowed to dry. Many of these sites are also
used as temporary storage sites, where materials other than VactorTM waste are stored. The
temporary storage sites store other types of waste and materials such as highway sweeper waste,
highway litter, highway grindings, base material, and various other materials. During highway
cleaning operations, sweepers and litter collection crews may deposit piles of sweeper and litter
waste at temporary storage sites where the piles remain until they are removed prior to the onset
of the wet- season. The highway sweeper waste and litter piles, and other materials stored, are
handled separately from the decanting waste. Temporary storage sites are evaluated in a separate
effort ( see Temporary Storage Site Assessment, November 2003).
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 4
November 2003
Table 1. Decanting Sites
Site
No. Site Code Region County Route Post
Mile
Direc-tion
Location Notes
1 SON- 101- 3.66- SB North Bay Sonoma 101 3.66 SB Petaluma Yard
2 SON- 116- 6.15- WB North Bay Sonoma 116 6.15 WB Sheridan Ranch
3 SOL- 80- 41.2- WB North Bay Solano 80 41.2 WB Kidwell
4 SOL- 80- 32.6- EB North Bay Solano 80 32.6 EB Midway Road
5 SOL- 80- 23.9- WB North Bay Solano 80 23.9 WB Pena Adobe
6 SOL- 12- 2.6- EB North Bay Solano 12 3.2 EB
7 SOL- 12- 17.5- EB North Bay Solano 12 17.5 EB No longer a decanting site
8 CC- 4- 30.0- EB Delta Contra
Costa 4 30.0 EB Co Co/ Hillcrest
9 CC- 24- 0.95- WB Delta Contra
Costa 24 0.95 WB Gateway Boulevard
10 SM- 380- 4.8- WB West Bay San Mateo 380 4.8 WB Dead end near I- 280
11 SM- 92- 13.8- EB West Bay San Mateo 92 13.8 EB West end of San Mateo Bridge
12 SM- 280- 6.9- SB West Bay San Mateo 280 6.9 SB Edgewood Off- ramp
13 ALA- 880- 20.8- NB East Bay Alameda 880 20.8 NB Washington Off- ramp
14 ALA- 580- 17.7- WB East Bay Alameda 580 17.7 WB El Charro On- ramp
15 ALA- 680- 7.48- SB East Bay Alameda 680 7.48 SB Vargas Road Off- ramp
16 SCL- 101- 34.8- NB South Bay Santa Clara 101 34.8 NB North of I- 280/ I- 680
17 SCL- 85- 10.6- SB South Bay Santa Clara 85 10.6 SB Oka Rd.
18 SCL- 101- 0.0- NB South Bay Santa Clara 101 0.0 NB San Benito County Line
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 5
November 2003
ASSESSMENT OF DRAIN INLET CLEAN- OUT OPERATIONS
As a part of this study, drain inlet clean- out operations were observed. These observations were
conducted for the purpose of determining if additional BMPs or procedures should be included in
current clean- out and decanting operations.
Location of Clean- Out Observations
This assessment was conducted in the Solano County Region of District 4 on July 30, 2003.
Prior to conducting field observations of clean- out operations, Maintenance personnel were
interviewed at the Fairfield yard located at 2019 West Texas Street. Following the staff
interview, field observations of clean- out operations were conducted on southbound Interstate
680, just north of Marshview Road. The clean- out waste material was deposited at Decanting
Site 5, located along Interstate 80, in the northwest quadrant of the Pena Adobe Road
interchange.
Overview of Clean- Out Operations
Drain inlet clean- out operations are primarily conducted for the purpose of maintaining hydraulic
capacity in the drainage system. VactorTM trucks use high- pressure streams of water to loosen
waste and make it possible to vacuum the slurry for disposal into a VactorTM truck tank. Clean-out
operations are illustrated in Figure 1.
After the tank is filled, the VactorTM is driven to a nearby decanting site, where the contents are
emptied into a decanting- pit. Figure 2 illustrates the dumping of clean- out waste into a
decanting- pit. After the contents have been emptied, high- pressure water jets inside the tank
clear remaining material from inside the tank, as illustrated in Figure 3.
Typically several VactorTM loads are emptied into a decanting- pit where the waste is allowed to
air dry. Subsequently, the dried waste is removed from the decanting pit, using a loader or
backhoe, and transported to a landfill for final disposal or reused as fill material.
Applicable recommended operational procedures and BMPs for clean- out operations, as
presented in the Storm Water Quality Handbook Maintenance Staff Guide, May 2003 and
Statewide Storm Water Quality Practice Guidelines, May 2003, include the following:
• A visual inspection of water drainage facilities shall be performed prior to cleaning.
Caltrans operators are trained to visually inspect for petroleum products, odors,
discoloration and other physical evidence of contamination.
• Use the minimum amount of water to clear drains and culverts.
• Keep water application equipment in good working order.
• Preserve existing vegetation.
• Do not stockpile sediment in or near the storm water drainage system or watercourses.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 6
November 2003
• Contain the water used and materials generated during drain and culvert cleaning and
manage as liquid or solid waste.
• Liquid waste may be collected in a VactorTM and transported back to the Maintenance
facility or approved decanting area for proper disposal.
• Unpermitted non- storm water discharges are prohibited.
Figure 1. Drain Inlet Clean- Out Operations
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 7
November 2003
Figure 2. VactorTM Emptying/ Decanting Operations
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 8
November 2003
Figure 3. Final VactorTM Tank Clearing
Clean- Out Assessment Observations
The following observations were made during the July 30, 2003 staff interview and field visit.
Maintenance Staff
VactorTM operators receive specialized VactorTM training and Hazardous Waste Operator
Training. Additionally, all maintenance personnel are required to attend safety meetings held at
a frequency of at least every 10 days. BMP training is included in these safety meetings.
Maintenance personnel are trained on the BMPs presented in the Storm Water Quality Handbook
Maintenance Staff Guide, May 2003 and Statewide Storm Water Quality Practice Guidelines,
May 2003. Typical clean- out operations are conducted by a minimum of a two- person crew.
One or more maintenance crew members are required to be a trained VactorTM operator.
Clean- Out Operations
Clean- out operations are conducted using a VactorTM truck accompanied by a water tanker truck.
The water truck is used to refill the VactorTM water storage tanks on- site, during maintenance
operations. This allows the maintenance crew to work until the VactorTM tank is full, without the
need to leave the site to obtain additional water.
The drain inlet cleaning observed at the Interstate 680, near Marshview Road, location is in a
rural setting. The drain inlet cleaned drains to the east through a box culvert, under the four- lane
interstate, to a marsh/ wetland area. The material removed from the drain inlet was comprised
primarily of sediment and rocks of various sizes. The material appears to have made its way into
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 9
November 2003
the Caltrans right- of- way through a culvert located under the frontage road to the west of
Interstate 680.
The maintenance activities observed were consistent with appropriate operational guidance and
BMPs presented in the Overview of Clean- Out Operations section above.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 10
November 2003
MONITORING METHODS
Monitoring of clean- out waste material was conducted at each of the17 District 4 decanting- pit
sites. Monitoring was conducted in accordance with the Decanting Waste Characterization
Sampling and Analysis Plan, August 2003 found in Appendix B. District 4 personnel were
present during each of the decanting site monitoring field visits. Samples were collected and
analyzed for the constituents listed in Table 2. All samples were collected using “ clean
techniques” following EPA SW- 846 guidance for the collection of solid waste samples.
Sampling personnel wore new clean, powder- free, gloves during sample collection, changing
gloves as needed to reduce the potential for sample contamination ( see Figure 4). Each
decanting waste site was sampled at multiple, randomly selected locations. The waste was then
combined at the analytical laboratory into a single composite sample to be analyzed for each site
monitored. Only rigorously pre- cleaned sampling equipment and laboratory provided certified
clean sample bottles came in contact with the sampled material. New pre- cleaned equipment
was used at each monitoring site, so as not to cause cross- contamination between sites. Samples
were preserved and transported to the analytical laboratory and analyses conducted according to
EPA methods.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 11
November 2003
Table 2. Constituents Monitored, Analytical Methods, and Reporting Limits
Constituent EPA Method Reporting
Limit Units
Metals:
Antimony 6020 0.1 mg/ kg
Arsenic 6020 0.1 mg/ kg
Barium 6020 0.25- 1 mg/ kg
Beryllium 6020 0.1- 0.5 mg/ kg
Cadmium 6020 0.1 mg/ kg
Chromium 6020 0.1- 1 mg/ kg
Cobalt 6020 0.1- 0.5 mg/ kg
Copper 6020 0.1- 0.5 mg/ kg
Lead 6020 0.25- 2 mg/ kg
Mercury 7471A 0.02 mg/ kg
Molybdenum 6020 0.1 mg/ kg
Nickel 6020 0.1- 0.5 mg/ kg
Selenium 6020 0.1 mg/ kg
Silver 6020 0.1 mg/ kg
Thallium 6020 0.1- 0.5 mg/ kg
Vanadium 6020 0.1- 0.25 mg/ kg
Zinc 6020 0.5- 5 mg/ kg
Fuel Related:
TPH Diesel 8015B 10- 100 mg/ kg
TPH Waste Oil 8015B 20- 200 mg/ kg
Benzene SW 8015CM 0.005 mg/ kg
Toluene SW 8015CM 0.005 mg/ kg
Ethylbenzene SW 8015CM 0.005 mg/ kg
Xylenes SW 8015CM 0.005 mg/ kg
In addition to sample collection and analysis, decanting site assessment was conducted at the 17
decanting sites. For each site, observations were recorded regarding site access and visibility
from the highway, material stored, fencing, signage, existing BMPs, runoff characteristics, and
any other pertinent visual observations.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 12
November 2003
Figure 4. Decanting- Pit Waste Sample Collection
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 13
November 2003
QUALITY ASSURANCE/ QUALITY CONTROL ( QA/ QC)
This section presents a summary of the results of QA/ QC analyses conducted. See Appendix D
for a detailed description of QA/ QC analyses conducted, results of QA/ QC analyses, and data
quality evaluation methods. The purpose of the QA/ QC review is to identify any apparent
QA/ QC problems that may limit or bias reported data.
QA/ QC Methods
QA/ QC methods used to evaluate laboratory performance are shown below.
Initial Screening
The reported data are checked to identify any gross errors in the sampling, analysis, or reporting
processes. Initial screening includes the checks on the following items:
• Laboratory reporting
• Completeness
• Holding times
• Detection limits
The initial screening typically involves additional communication with the laboratory and
requests for amended laboratory reports.
QA/ QC Data Evaluation
The QA/ QC data evaluation assesses contamination, precision, and accuracy. Both a laboratory-initiated
assessment ( internal QA/ QC) and a field- initiated assessment ( external QA/ QC) are
performed. All QA/ QC results are included in Appendix B.
Contamination Checks
Contamination of samples is assessed using method and field blanks. Blanks are prepared using
reagent grade de- ionized water and tested using analytical procedures identical to those used for
the environmental samples.
Accuracy Checks
Accuracy checks consist of measurements of the recovery of a “ spike” of a known concentration,
followed by calculation of percent recovery.
Laboratory control samples ( LCS) and standard reference material ( SRM) are batch checks for
recovery of a known concentration of a standard solution used to assess the accuracy of the entire
recovery process from preparation of the sample to analysis.
Matrix spike analysis involves the introduction of a known spike in the original " matrix" ( sample
solution), and is a measure of the accuracy of the recovery performance of the laboratory.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 14
November 2003
Surrogate matrix spikes are used as a check on the extraction process for organic compounds.
Precision Checks
Precision is the measurement of the difference between samples that are presupposed to be
replicates ( i. e., collected and analyzed in the same manner). The relative percent difference
( RPD) is calculated as a measure of the difference between replicate samples.
Laboratory duplicates are samples split in the laboratory to measure the precision of the
laboratory analysis.
Field duplicates are sampled one directly after the other in the field and submitted to the
laboratory as separate samples.
Matrix spike duplicate ( MSD) analysis checks the precision of the matrix spike ( MS) recovery.
Laboratory control spike duplicate ( LCSD) analysis checks the precision of the LCS recovery.
Field and laboratory duplicate samples must have a RPD less than the maximum allowable value
( MAV) or have an absolute difference of one detection limit or less. LCS and MS replicates
must have an RPD less than the MAV. Maximum allowable RPD values, out- of range results,
and the resulting data qualifications are presented in Appendix D.
QA/ QC Results
No significant QA/ QC problems were encountered for this project. The following sub- sections
present a summary of QA/ QC results from the contract laboratories. All QA/ QC results are
reported in Appendix D.
Initial Screening
Laboratory data problems encountered during the initial screening process of analytical data are
as follows:
The mercury result reported for Site 2 was observed to be significantly higher than the mercury
results reported for all of the other sites. Therefore, the analytical laboratory was asked to review
and confirmed the result. Re- analysis produced a similar result to that of the original, thereby
confirming the original result.
Laboratory duplicate analysis for mercury, requested on the Site 13 sample, was not analyzed
due to a laboratory error.
Contamination Checks
Chromium was detected in one of the two field blanks. The chromium field blank result was
well below chromium levels detected in the decanting- pit waste samples. Therefore, no data
qualification is required.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 15
November 2003
Accuracy
The standard reference material percent recovery results for chromium and vanadium were less
than the lower acceptability limits. Therefore, the environmental samples associated with the
standard reference material results were qualified as “ low bias” ( LB). The standard reference
material percent recovery result for silver was greater than the upper acceptability limit.
Therefore, the environmental samples associated with standard reference material result were
qualified as “ high bias” ( HB).
Based on the QA/ QC spike results, the appropriate environmental data points have been qualified
and reported in Appendix D.
Precision
The calculated relative percent difference between the environmental results and laboratory
duplicate results for TPH- Diesel Range Organics and TPH- Waste Oil at Site 13 were greater
than the maximum allowable value RPD. Therefore, the environmental sample results were
qualified as “ estimated and not reproducible due to analytical variability” ( EST- NR).
The calculated relative percent difference between the environmental results and field duplicate
results for barium, copper, lead, mercury, molybdenum, and TPH- Diesel Range Organics at Site
10 were greater than the maximum allowable value RPD. Therefore, the environmental sample
results were qualified as “ estimated” ( EST- FD).
The calculated relative percent difference between the matrix spike and matrix spike duplicate
for lead at Site 16 was greater than the maximum allowable value RPD. Therefore, the
environmental sample associated with the matrix spike duplicate result is qualified as “ not
reproducible due to matrix spike variability” ( NRMS).
The appropriate environmental data points have been qualified and reported in Appendix D.
Holding Times Achieved
All analyses were conducted within the maximum allowable holding times specified by the
analytical methods.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 16
November 2003
DECANTING WASTE MONITORING RESULTS
This section includes a presentation of the analytical laboratory results from the decanting- pit
waste characterization monitoring.
Summary of Monitoring Results
A summary of the results is provided in Table 4. All results are shown in milligrams per
kilogram ( mg/ kg). Detailed analytical results are provided in Appendix B.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 17
November 2003
Table 4. Decanting- Pit Waste Characterization Monitoring Results ( mg/ kg)
Constituent Site
1
Site
2
Site
3
Site
4
Site
5
Site
6
Site
8
Site
9
Site
10
Site
11
Site
12
Site
13
Site
14
Site
15
Site
16
Site
17
Site
18
Antimony 0.654 3.08 0.582 0.547 0.709 0.821 0.81 4.49 1.99 3.48 0.58 2.5 0.997 0.916 1.82 1.76 0.887
Arsenic 2.02 5.97 3.07 4.19 7.1 9.31 2.15 3.7 2.9 1.97 2.74 2.66 5.28 4.32 2.14 2.94 3.16
Barium 117 180 153 196 381 582 132 210 161 315 209 147 272 223 136 184 227
Beryllium 0.251 0.286 0.211 0.277 0.285 0.362 0.138 0.235 0.168 0.127 0.351 < 0.5 0.314 < 0.5 0.225 0.199 0.396
Cadmium 0.273 0.603 0.303 0.247 0.133 0.184 0.337 1.64 0.717 1.01 0.444 0.874 0.794 0.589 0.446 0.97 0.354
Chromium 47.5 56.2 66.8 67.3 29.2 28.1 39.8 43 58.9 57.3 144 77.3 37.6 57.8 51.6 78.1 35.4
Cobalt 16.3 17.4 9.87 13.7 20.2 30.6 22.4 9.58 10.1 10.9 25.6 11.2 10.3 5.64 7.35 7.78 5.29
Copper 23.9 22.9 25.5 27 34.4 41 53.8 72.9 94.1 71.5 32.3 52.5 57.9 24.2 19.2 26.5 21.2
Lead 180 56.3 69.5 65 16.1 16.6 29.2 470 148 54.1 48.9 98 269 407 218 611 82.1
Mercury 0.0787 3.96 0.076 0.057 0.021 0.031 0.146 0.188 0.063 0.044 0.042 0.066 0.03 0.064 0.036 0.059 0.045
Molybdenum 1.87 0.64 1.12 0.722 0.698 1.6 3.17 3.27 2.7 2.72 0.933 2.68 1.52 1.67 2.25 1.79 0.954
Nickel 31.7 406 89.7 105 23.5 31.7 23.7 28.3 30.4 52.7 155 43.5 27.5 32.9 46.8 70.3 21.3
Selenium < 0.1 0.209 < 0.1 0.179 0.262 0.356 0.1368 0.284 0.205 0.14 0.474 0.287 0.213 0.321 1.08 0.169 0.278
Silver < 0.1 0.171 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 0.219 0.1 0.184 < 0.1 0.102 < 0.1 < 0.1 0.123 < 0.1 < 0.1
Thallium 0.144 0.226 0.121 < 0.25 < 0.25 < 0.25 < 0.5 < 0.25 < 0.5 < 0.25 < 0.1 < 0.25 < 0.5 < 0.1 < 0.1 < 0.1 0.149
Vanadium 68.3 43 63.4 60.1 86.3 95.9 59.1 48.6 51.7 63.2 60.9 45.8 62.1 54.3 49.3 56.2 59.6
Zinc 93.2 498 148 156 51.2 53 105 408 406 268 476 614 137 156 316 170 90.2
TPH- waste oil 460 800 620 < 200 < 20 < 20 870 1100 1000 1500 500 530 1000 400 800 620 530
TPH- Diesel 81 < 50 200 180 < 10 < 10 220 450 310 110 60 110 150 51 280 82 < 50
Benzene < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
Toluene < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.12 0.03 < 0.005 0.0076 < 0.005 < 0.005 < 0.005 < 0.005 0.013 0.025 0.01
Ethylbenzene < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.045 < 0.005 < 0.005 0.0074 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
Xylenes < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.085 < 0.005 < 0.005 0.08 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 18
November 2003
DECANTING SITE ASSESSMENT
As described previously, visual site assessments were conducted at each of the 17 decanting- pit
site. Observations made during site assessments are presented in this section. A spreadsheet
showing a detailed, site- by- site summary is provided in Appendix F.
General Observations
The following general observations were made during decanting- pit site assessments:
1. All of the decanting- pit sites currently in use are located in areas that are easily and safely
accessible by maintenance crews.
2. The majority of the decanting- pit sites are not readily visible by the public. The sites that
are used only for decanting, and not as temporary storage sites, are typically difficult to
spot from roadways. Decanting- pits are often hidden by low growing vegetation.
3. Decanting sites that are also used as temporary storage sites are typically more visible to
the public because material is sometimes stored in piles as high as six to eight feet. Sites
in pubic view with no fencing or gates appear to attract occasional private citizen
dumping of various materials from vehicle batteries and motor oil to furniture and
construction waste. Several sites are fenced and gated with no public access.
4. Most of the decanting- pit sites are multi- purpose, or combination, sites. In other words,
most of the 17 sites are also used as temporary material storage sites. However, the
material storage area is different than the decanting pit area. The most commonly
observed stored materials include sweeper waste and highway grindings. In addition,
slide material, base- rock, channel cleaning material, sand, and wood chips were present at
some sites. Only 3 of the 17 sites were used exclusively for the decanting of drain- inlet
cleaning waste.
5. There is no standard decanting- pit configuration. The typical configuration is a
rectangular bermed pit ( see Figure 5). The pits are typically excavation within the pit
with berms that are approximately two- foot high. Other configurations include no
internal excavation, berms on only three sites, excavated pits with no berms, and half
moon shaped berms with no excavation.
6. All of the sites had relatively small amounts of waste material in them ( only a few
VactorTM loads). The exact volume of waste material was difficult to estimate, primarily
because the majority of the waste material deposited is in liquid form, which spreads out
over the decanting- pit floor and evaporates. Typically, each VactorTM load deposits
approximately a couple cubic feet of solid waste after evaporation and infiltration. All
the decanting- pits appeared to be well maintained, without an excess build- up of waste
material.
7. All of the decanting- pits, regardless of configuration, were of adequate size to contain the
deposited waste material. No decanting pits were observed to be near capacity, or in any
way configured to allow decanting waste to spill from the designated decanting- pit area.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 19
November 2003
8. Some of the sites have driveway surfaces of asphalt or compacted highway grindings
leading to the decanting- pit. However, the majority of sites have simple dirt driveways.
9. Because BMPs are not typically put in place until the start of the rainy season ( October
15th), some sites did not have any physical BMPs in place. However, many sites had
evidence of BMPs remaining from the previous rainy season. Most of the observed
BMPs were runoff and downstream drain inlet protection, such as fiber rolls and silt
fencing.
Figure 5. Typical Decanting- Pit Configuration ( Site 6)
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 20
November 2003
Decanting- Pit Site Specific Assessment
Detailed results of decanting- pit site assessments are presented in Appendix F and summarized
below with specific recommendations. The observations presented below are intended to be
specific to decanting- pit sites. In a separate effort, temporary storage sites are assessed in detail
with regard to material storage methods, site configurations, and BMPs. Decanting- pit sites that
are also used as temporary storage sites are included in this detailed assessment ( see Temporary
Storage Site Assessment, November 2003).
Site 1 ( SON- 101- 3.66- SB)
This is a good site because it is located in a secured area at the Petaluma Maintenance Yard out
of public view and secure from public access.
Site 2 ( SON- 116- 6.15- WB)
Because this site is located on a designated scenic highway adjacent to the Russian River, the site
could be improved by making efforts to hide the site from public view, by moving the site to a
less visible location, or by hiding the site behind large vegetated berm.
Site 3 ( SOL- 80- 41.2- WB)
This site is well hidden from public view, has easy and safe access, and receives adequate
sunlight. However, the site is located in close proximity to a wetland area ( less than 100 feet),
which could be of potential concern.
Site 4 ( SOL- 80- 32.6- EB)
This site is well hidden from public view, with easy and safe access, and receives plenty of
sunlight.
Site 5 ( SOL- 80- 23.9- WB)
This site has a compacted highway grindings driveway, has easy and safe access, and receives
adequate sunlight. However, the site is highly visible from the Pena Adobe Road onramp, which
has attracted private citizen dumping of material such as building materials, used motor oil, and a
dog carcass. This site would benefit from a barrier or fencing that would restrict public access as
well as “ No Dumping” signage.
Site 6 ( SOL- 12- 3.2- EB)
This is an ideal decanting- pit site. The site is located out of public view, has an asphalt
driveway, and receives adequate sunlight.
Site 7 ( SOL- 12- 17.5- EB)
This site is not currently used for clean- out waste decanting.
Site 8 ( CC- 4- 30.0- EB)
This site is located out of public view and receives plenty of sunlight. Access to this site is not
ideal since the site is located in the Highway 4 median. Access required exiting onto an unpaved
surface from the fast lane. Additionally, leaving the site requires merging into the fast lane.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 21
November 2003
Site 9 ( CC- 24- 0.95- WB)
This site is in an ideal location in that it is located behind a large bermed, paved, and gated area
out of public view. Additionally, this is the only site that has a “ VactorTM Clean- Out Only” sign
that likely serves to help prevent improper dumping. However, the decanting- pit does not
receive adequate sunlight and is not bermed to prevent run- on. Relocation and reconfiguration to
move the decanting pit away from the shade trees and with berms for run- on prevention would
substantially improve this site.
Site 10 ( SM- 380- 4.8- WB)
This site is out of public view. However, the configuration of the pit is not ideal. The pit is
excavated out of a mound, with a large steep wall that will likely erode into the pit.
Additionally, the site is shaded from the sun at times.
Site 11 ( SM- 92- 13.8- EB)
This site is in a location that is out of public view, with easy and safe access, and receives
adequate sunlight.
Site 12 ( ALA- 880- 6.9- SB)
This site is located behind a locked gate, out of public view, with easy and safe access, and in an
area that receives adequate sunlight. However, the decanting- pit is configured with steep banks
that will likely erode into the pit.
Site 13 ( ALA- 880- 20.8- NB)
This site is in a location that is out of public view, with easy and safe access, and a paved
driveway. This site is currently configured with concrete traffic dividers on three sides. Run- on
protection would be improved by replacing the concrete dividers with berms, or by adding berms
in addition to the dividers. Additionally, this decanting- pit was observed to have some standing
water, possibly due to a recent load of decanting waste and the pit being in a location that is
shaded from the sun certain parts of the day.
Site 14 ( ALA- 580- 17.7- WB)
This site is in a location with easy and safe access. However, the site is located in the public
view. This site has a unique configuration, made up of a large half moon shaped berm with a silt
fence. This site may benefit from the addition of run- on prevention measures.
Site 15 ( ALA- 680- 7.48- SB)
This is an ideal site, configured with a bermed pit that has an asphalt driveway. This site has
easy and safe access and has silt fence downstream drain inlet protection.
Site 16 ( SCL- 101- 34.8- NB)
This decanting- pit is located in a large multi- use site. The decanting- pit was observed to have a
significant amount of standing water, likely due to a recent load of waste and the fact that the pit
receives shade from the highway interchange above. This site may benefit from having the
decanting- pit relocated to a location with more direct sunlight.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 22
November 2003
Site 17 ( SCL- 85- 10.6- SB)
This site is in location behind a locked gate and away from public view. The decanting- pit has a
driveway of compacted highway grindings. The pit was observed to be muddy due to shade
from adjacent trees. This site would benefit from some tree pruning or slight pit relocation.
Site 18 ( SCL- 101- 0.0- NB)
This site is in a location behind a locked gate and away from public view and the decanting- pit
receives adequate sunlight. With a little work on the berms at this site, to improve run- on
protection, this will be an ideal site.
Summary of Observations
To summarize the observations presented above, all of the sites are located in areas with safe
easy access; most of the sites are also used as temporary storage sites for materials other than
clean- out waste; not all sites receive adequate sunlight for waste drying; and some sites were not
adequately bermed or constructed to prevent run- on.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 23
November 2003
DATA OBSERVATIONS AND CONCLUSIONS
Summary statistics and data observations and conclusions regarding drain inlet cleaning
decanting waste results are presented in this section.
Waste Characteristics
The summary statistics for characterizing the decanted waste are shown in Table 5, including
percent detected, mean, maximum and minimum results. The percent detected shown is the
percentage of the 17 sites monitored that had a reported result above the analytical detection
limit. The mean is the average of the results from all 17 of the sites monitored. For several of
the constituents ( benzene, ethylbenzene, and xylenes) sufficient detected data were not available
to calculate a mean value. The Caltrans Data Analysis tool ( DAT) was used to generate
summary statistics for characterizing the decanting waste. The DAT uses a regression on order
statistics ( ROS) to provide a method to estimate summary statistics for datasets that have some
concentrations reported below the laboratory reporting limit (" non- detects"). The methodology,
based on methods published by USGS, develops order statistics ( probability of occurrence)
based on the entire dataset and performs a regression of the detected concentrations against the
order statistics. Summary statistics ( mean, standard deviation, etc.) can be estimated based on
the regression line.
The minimum and maximum results shown in Table 4 indicate the lowest and highest results,
respectively, that were reported for the sites.
Comparison of Results to Regulatory Limits
Also shown in Table 5 are the California Code of Regulations ( CCR) Title 22 Total Threshold
Concentration ( TTLC) values. Theses values indicate levels at which specific constituents are
considered to be hazardous.
A review of Table 5 shows that none of the results from the drain inlet waste characterization
monitoring effort met or exceeded the CCR Title 22 values. This is evident when comparing the
maximum reported results to the CCR Title 22 values. All reported values were below Title 22
values for hazardous waste. Therefore, none of the decanting waste sampled is considered
hazardous waste.
To further clarify the issue, frequency distribution plots were produced for each constituent that
had adequate results reported above analytical detection limits ( see Appendix E). Plots were not
produced for constituents that did not have 20 percent or greater detected data. Benzene,
ethylbenzene, and xylenes did not have adequate detected data available to produce the plots.
Included on these plots is the appropriate CCR Title 22 value. The plots show that for every
constituent monitored, with the exception of lead, that the waste will be below the CCR Title 22
criteria more than 99.99 percent of the time. Similarly, lead levels in the decanted waste will be
below the CCR Title 22 criterion 95 percent of the time.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 24
November 2003
Table 5. Decanting- Pit Waste Characterization Results Summary ( 17 Sites
Sampled)
Constituent Percent
Detected
Mean
( mg/ kg)
Minimum
Result
( mg/ kg)
Maximum
Result
( mg/ kg)
CCR Title 22
Value
( mg/ kg)
Results Below
CCR Title 22
Value
Antimony 100 1.57 0.547 4.49 500 100%
Arsenic 100 3.86 1.97 9.31 500 100%
Barium 100 225 117 582 10,000 100%
Beryllium 88 0.254 < 0.5 0.396 75 100%
Cadmium 100 0.583 0.133 1.64 100 100%
Chromium 100 57.4 28.1 144 2,500 100%
Cobalt 100 13.8 5.29 30.6 8,000 100%
Copper 100 41.2 19.2 94.1 2,500 100%
Lead 100 167 16.1 611 1,000 100%
Mercury 100 0.295 0.021 3.96 20 100%
Molybdenum 100 1.78 0.64 3.27 3,500 100%
Nickel 100 71.8 21.3 406 2,000 100%
Selenium 88 0.280 < 0.1 1.08 100 100%
Silver 35 0.084 < 0.1 0.219 500 100%
Thallium 24 0.121 < 0.1 0.226 700 100%
Vanadium 100 60.5 43 95.9 2,400 100%
Zinc 100 244 51.2 614 5,000 100%
TPH- waste oil 82 683 < 20 1500 N/ A N/ A
TPH Diesel 77 141 < 10 450 N/ A N/ A
Benzene 0 * < 0.005 < 0.005 N/ A N/ A
Toluene 35 0.013 < 0.005 0.12 N/ A N/ A
Ethylbenzene 12 * < 0.005 0.045 N/ A N/ A
Xylenes 12 * < 0.005 0.085 N/ A N/ A
* Insufficient detected data available to calculate a mean.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 25
November 2003
RECOMMENDATIONS
Recommendations regarding drain inlet cleaning operation, decanting- pit sites, and waste
management are provided in this section. Recommendations regarding temporary storage site
including operations, site configurations, BMPs, and waste management are presented in a
separate report ( Temporary Storage Site Assessment, November 2003).
Operational Recommendations
Assessment of clean- out activities revealed that maintenance personnel are well trained, on
VactorTM equipment operation, safety, and appropriate drain inlet cleaning BMPs. Clean- out and
decanting activities appear to be conducted in a manner consistent with protocols presented in
the Storm Water Quality Handbook Maintenance Staff Guide, May 2003 and Statewide Storm
Water Quality Practice Guidelines, May 2003. Field observations indicated that these drain
cleaning operations and subsequent handling of the slurry waste were conducted to minimize and
prevent the discharge of pollutants to local waterways. Therefore, no changes in operational
procedures or additional BMPs are recommended at this time. However, during the assessment
of clean- out and decanting operations, observations were made regarding decanting site
configuration. Individual decanting site recommendations are presented in the Decanting Site
Assessment section of this report.
In summary, it is recommended that maintenance personnel continue to receive training as a part
the safety meetings held at a minimum frequency of every 10 days. Regular BMP training
should, at a minimum, include relevant information from the Storm Water Quality Maintenance
Staff Guide, May 2003 and Statewide Storm Water Quality Practice Guidelines, May 2003.
Additionally, maintenance personnel should be made aware of current regulatory activities that
may impact maintenance activities.
Decanting- Pit Site Recommendations
Specific site recommendations are presented in the Site- Specific Observations section of this
report. Recommendations for what would be considered the ideal decanting- pit placement and
configuration are presented below. Although efforts should be made to follow these
recommendations, there are many factors, such as availability of space in the Caltrans right- of-way,
that may restrict the location and configuration of decanting- pit design and it is anticipated
that every site will not meet the recommendations provided below.
1. Site Location. The ideal site is one that is located in an area that:
• Has safe access and easy access for the VactorTM truck to enter and exit; and
• Is out of public view for the purpose of aesthetics ( sites located out of public view
will attract less illegal private citizen access and dumping).
2. Site Configuration.
• Sites that must be located in an area that is in public view, and/ or an area known
to attract private citizen dumping should be gated to restrict public access.
Additionally, “ No Dumping” signs should be added in this type of an area.
Assessment of Drain Inlet Cleaning and Waste Disposal
California Department of Transportation 26
November 2003
• Asphalt or compacted highway grindings ( or other suitable material) driveways
are recommended for the purpose of reducing the potential for tracking material
onto the roadway during wet conditions.
3. Decanting- Pit Location. Decanting- pits should be located in an area that:
• Is at an elevation above the 100- year flood plain;
• Does not have evidence of infiltration;
• Is not in a location that is know to have groundwater or soil contamination;
• Is not located near waterways or wetland areas;
• Is not shaded by trees or structures ( direct sunlight will accelerate evaporation of
waste);
• Has soils that provide adequate infiltration;
• Has adequate area to allow decanting without spillage or overfilling
4. Decanting- Pit Configuration. The following decanting- pit configuration
recommendations are made:
• Although a standardized size or shape of pit is not recommended, decanting- pits
should be bermed on all sites, or otherwise configured, to eliminate the potential
for run- on or runoff. Berms should be configured in a stable manner so as to
eliminate the potential for erosion.
• For added runoff protection, the placement of staked fiber roll around the outside
base of the bermed decanting- pit area would add runoff protection for newly
constructed pits.
• In addition, downstream drain inlet protection is recommended for additional
runoff protection.
Waste Management Recommendations
Since the drain inlet cleaning waste characterization results presented in this report did not show
the potential to exceed hazardous waste criteria, no additional waste management or tracking
recommendations beyond Caltrans existing BMPs for waste management are provided at this
time. Likewise, it is recommended that decanted drain inlet waste continue to be disposed of
using the current practices of disposal at local landfills per current practices. Additionally,
decanted waste material that is free of litter may be reused as highway fill material.
APPENDIX A
Site Maps
APPENDIX B
Decanting Waste Characterization Sampling & Analysis Plan
A U G U S T 2 0 0 3
Decanting Waste Characterization
Sampling and Analysis Plan
CTSW- RT- 03- 068.51.43
California Department of Transportation
Caltrans Decanting Waste Characterization SAP i August 2003
Table of Contents
BACKGROUND AND PURPOSE.............................................................................................. 1
DECANTING STORAGE SITES INCLUDED IN THIS STUDY .......................................... 1
MONITORING SCHEDULE AND METHODS....................................................................... 3
Pre- Monitoring Event Activities................................................................................................. 3
Equipment Cleaning ............................................................................................................... 4
Sampling Event Activities .......................................................................................................... 5
Personal Protection ................................................................................................................ 5
Sample Locations.................................................................................................................... 5
Sample Collection ................................................................................................................... 7
Sample Labeling ..................................................................................................................... 8
Field Quality Assurance/ Quality Control............................................................................... 8
Field Documentation .............................................................................................................. 9
Handling and Transport of Samples....................................................................................... 9
LABORATORY ANALYSES AND QUALITY ASSURANCE............................................. 11
Sample Test Methods................................................................................................................ 11
Data Review......................................................................................................................... .... 11
Quality Assurance and Quality Control.................................................................................... 11
Laboratory QA/ QC ............................................................................................................... 12
Out- of- Range Data ............................................................................................................... 12
Sample Holding by Laboratory............................................................................................. 12
DATA ANALYSIS, INTERPRETATION, AND MANAGEMENT...................................... 13
Data Analysis....................................................................................................................... .... 13
Data Report ............................................................................................................................... 14
Appendices
A Decanting Site Location Maps
B Random Numbers Table
C Field Log/ Observation Form
D Chain of Custody Form
Caltrans Decanting Waste Characterization SAP 1 August 2003
Decanting Waste Characterization
Sampling and Analysis Plan
BACKGROUND AND PURPOSE
Caltrans conducts extensive cleaning of its drainage system throughout the State. VactorTM
trucks are often used to remove waste material from the drainage system. Full VactorTM trucks
dump the waste sludge at decanting sites, where the material is stored and allowed to dry. Dry
waste sludge is ultimately removed from the decanting sites and taken to landfills for final
disposal or reused as highway fill material for maintenance projects
Caltrans’ current National Pollutant Discharge Elimination System ( NPDES) Permit ( Section
I. 1. c) requires the management of waste generated from drainage system cleaning. All waste
from the drainage system that pose a threat to water quality must be removed and disposed of
properly.
This Sampling and Analysis Plan describes that rationale, procedures, and methods for collecting
and analyzing waste from 18 representative decanting sites throughout Caltrans District 4. The
purpose of sample collection and analysis is to characterize the waste sludge.
DECANTING STORAGE SITES INCLUDED IN THIS STUDY
This study includes the 18 decanting sites currently in use throughout Caltrans District 4. A list
of the decanting sites is provided in Table 1. Maps showing the locations of the decanting sites
in District 4 are provided in Appendix A.
Caltrans Decanting Waste Characterization SAP 2 August 2003
Table 1. Decanting Sites
Site
No.
Site Code Region County Route Post
Mile
Direc-tion
Location Notes
1 SON- 101- 3.66- SB North Bay Sonoma 101 3.66 SB Petaluma Yard
2 SON- 116- 6.15- SB North Bay Sonoma 116 6.15 WB
3 SOL- 80- 41.2- WB North Bay Solano 80 41.2 WB
4 SOL- 80- 32.6- EB North Bay Solano 80 32.6 EB
5 SOL- 80- 23.9- WB North Bay Solano 80 23.9 WB
6 SOL- 12- 2.6- EB North Bay Solano 12 2.6 EB
7 SOL- 12- 17.5- EB North Bay Solano 12 17.5 EB
8 CC- 4- 30.0- EB Delta Contra
Costa
4 30.0 EB East of Hillcrest – median
9 CC- 24- 0.95- WB Delta Contra
Costa
24 0.95 WB Gateway
10 SM- 380- 4.8 West Bay San Mateo 380 4.8 Dead end near 280
11 SM- 92- 13.8- EB West Bay San Mateo 92 13.8 EB West end of bridge
12 SM- 280- 6.9- SB West Bay San Mateo 280 6.9 SB Edgewood off ramp
13 ALA- 880- 20.8- NB East Bay Alameda 880 20.8 NB Northbound Washington off
ramp
14 ALA- 580- 17.7- WB East Bay Alameda 580 17.7 WB Westbound El Charro on
ramp
15 ALA- 680- 7.48- SB East Bay Alameda 680 7.48 SB Southbound Vargas Road off
ramp
16 SCL- 101- 34.8- NB South Bay Santa
Clara
101 34.8 NB Just north of 280/ 680
17 SCL- 85- 10.6- SB South Bay Santa
Clara
85 10.6 SB Near SCL 017 on Oka rd.
18 SCL- 101- 0.0- NB South Bay Santa
Clara
101 0.0 NB San Benito County Line
Caltrans Decanting Waste Characterization SAP 3 August 2003
MONITORING SCHEDULE AND METHODS
Monitoring will be scheduled in coordination with appropriate District staff, to confirm that
waste is present at each of the 18 District 4 decanting sites. It is anticipated that three to four
decanting sites can be sampled in one day using a team of two people. The actual number of
sampled per day will depend on travel distance between sites and traffic considerations.
Pre- Monitoring Event Activities
The following activities will be conducted approximately two weeks prior to the scheduled
sampling:
􀂉 Verify that each site has waste present
􀂉 Verify the schedule of sites to be sampled and determine the total amount of samples that
will be collected during each day of the two- week monitoring period.
􀂉 Confirm that a sampling crew, of at least two people, is available for each day of
sampling, and that all have received appropriate training for the activity.
􀂉 Coordinate with the analytical laboratory, to notify them of the schedule and make
arrangements for the delivery of clean sample containers, deionized ( D. I.) water, and
coolers. See Table 2 for required bottle types.
􀂉 Pre- clean stainless steel sampling trowels as described below.
􀂉 Gather field equipment as specified in the Field Equipment Checklist ( Table 3).
The following activities shall be conducted approximately two days prior to the scheduled
sampling:
􀂉 Contact District staff to ensure that waste is present at the sites scheduled for monitoring.
􀂉 Pre- label sample containers.
􀂉 Map out daily sampling site schedule.
􀂉 Coordinate with District staff to provide Caltrans escort to each of the sampling sites.
Table 2. Sample Bottle Requirements
Analysis Bottle Type Preservative
CAM 17 Metals
TPH Diesel
500mL Wide Mouth Glass 4° Celsius
BTEX Compounds 60mL Wide Mouth Glass 4° Celsius
Caltrans Decanting Waste Characterization SAP 4 August 2003
Table 3. Caltrans Decanting Waste Sampling Equipment Checklist
Equipment
􀂆 500mL wide mouth glass jars for Metals and TPH samples
􀂆 60mL wide mouth glass jars for BTEX samples
􀂆 Bubble wrap for glass bottles
􀂆 Waterproof markers
􀂆 Sample Labels
􀂆 Powder free latex or nitrile gloves ( at least one full box)
􀂆 Coolers and Ice
􀂆 Clean stainless steel sampling trowels
􀂆 Large Ziploc bags ( for storage of clean gloves and other clean items)
􀂆 Cellular phone
􀂆 First Aid kit
􀂆 Digital camera
Documentation
􀂆 This Sampling Plan
􀂆 Area map ( Thomas Guide)
􀂆 Field log book
􀂆 Chain- of- custody forms
􀂆 Notebook for site sketches
Equipment Cleaning
All portions of the sampling equipment that come in contact with sample material must be
cleaned prior to use for sample collection. Cleaning will be performed using phosphate- free
laboratory detergent ( e. g., Liquinox, Alchonox). Washed items shall be rinsed with D. I. water
prior to the collection of each sample. When not in use, cleaned pieces should be stored in clean
bags so as to reduce potential for contamination.
Caltrans Decanting Waste Characterization SAP 5 August 2003
Sampling Event Activities
The following activities shall be conducted during waste sampling events.
Personal Protection
Ensure that all sampling personnel are wearing appropriate protective clothing, such as work
boots, hard hat, safety vest, and gloves when collecting samples. If at any time during the
sampling event, you suspect the waste sludge is unusually contaminated ( e. g., due to odor, color,
wastes, or other evidence) then halt work and notify Caltrans Hazardous Materials at ( 510) 286-
4492.
Sample Locations
Each decanting site will be sampled at three randomly selected locations. The three individual
samples will be submitted to the analytical laboratory, where they will be combined to provide a
single composite sample for each decanting site. At each sampling site, random sampling
locations shall be selected using a three- dimensional grid and a random numbers table as
follows:
1. Using the random numbers table in Appendix B, select three numbers between 001 and
100. Random numbers may be selected by placing a finger on the random numbers table,
without looking.
2. Use the grid shown in Figure 1 to locate the three randomly selected sampling locations
in the horizontal plane. Since the waste to be sampled may be of irregular shape, it is
possible that one or more of the selected locations on the grid will not contain material to
sample. If this occurs, randomly select another location using the same process.
3. If the waste material to be sampled is of significant depth ( say one foot or greater) each
sample should be collected at a randomly selected depth as follows. Use the random
numbers table again to select a sampling depth ( from 1 to 10), with 1 at the top of waste
material and 10 at the bottom, for each of the three randomly selected sampling locations.
If the waste material is less than a foot in depth, the entire depth should be sampled.
Caltrans Decanting Waste Characterization SAP 6 August 2003
Figure 1. Sampling Grid
1 5 6 10
41 50
51 60
91 95 96 100
Caltrans Decanting Waste Characterization SAP 7 August 2003
Sample Collection
Samples shall be collected of deposited waste material only, excluding underlying native soil.
The purpose of this is to characterize the chemical composition of the deposited waste material
only.
A two person sampling team shall conduct sample collection using clean techniques as described
below. Each sampling team member shall wear new, clean, powder- free latex or nitrile
laboratory gloves during sample collection. Any time something not known to be clean is
touched, gloves will be changed. One team member will use a pre- cleaned stainless steel
sampling trowel to excavate and collect sample material from the randomly selected locations,
while the second team member will be responsible for handling sample bottles. Particles greater
than one inch in size should be avoided. A new clean scoop shall be used at each monitoring
site.
Samples shall be collected only in the laboratory provided containers as listed in Table 2.
Clean Techniques
“ Clean sampling” techniques are required to collect and handle samples in a way that results in
neither contamination, loss, or change in the chemical form of the analytes of interest. Samples
shall be collected using the protocols summarized below:
1. Samples will be collected only into new clean sample bottles provided by the analytical
laboratory.
2. Sampling personnel will wear clean, powder- free, nitrile gloves at all times during sample
collection.
3. Clean, powder- free nitrile gloves will be changed whenever something not known to be clean
has been touched.
4. Clean techniques will be employed whenever handling sample bottles or equipment used for
the collection of samples.
To reduce potential sample contamination, sample collection personnel will adhere to the
following rules at all times while collecting or handling samples:
• No smoking.
• Never sample near a running vehicle. Do not park vehicles in immediate sample
collection area ( even non- running vehicles).
• Minimize the amount of time any sample container is left open.
• Do not set lids down where they may accumulate contaminants.
• To the greatest extent possible, prevent foreign material ( blowing dust, leaves, etc.) from
entering any open sample container.
• Never touch the inside surfaces of sample bottles, lids, even with gloved hands.
• Do not eat or drink during sample collection.
Caltrans Decanting Waste Characterization SAP 8 August 2003
• Avoid breathing, sneezing or coughing in the direction of an open sample bottle.
Sample Labeling
Samples shall be labeled immediately after collection with the following information:
• Project Name ( Caltrans Decanting Waste Characterization)
• Monitoring Site Number and Location ( from Table 1). See Table 4 below for Field and
Blank Duplicate sites and codes.
• Sample collection date and time.
The labels should be written with indelible ink to prevent smearing in the presence of moisture.
After labeling, the sample shall be immediately placed on ice in a cooler.
Field Quality Assurance/ Quality Control
The following types of quality assurance/ quality control analyses will be conducted during this
study. See Table 4 for QA/ QC schedule. Results of QA/ QC analyses will be used for data
quality evaluation.
Field Blanks
Field blank samples shall be collected for the purpose of checking field procedures and
equipment for potential sample contamination. Field blanks shall be collected for each of the
required analyses prior to normal sample collection, at the sites specified in Table 4. Field
blanks shall be collected, using clean techniques, by pouring laboratory- provided blank water
into the clean stainless steel sampling trowel, then into a clean sample bottle. The blank sample
shall be placed on ice and delivered to the laboratory with normal samples.
Field Duplicates
Field duplicate samples will be submitted to the laboratory, and results used to assess variability
attributed collection, handling, shipping, storage, and laboratory handling and analysis. Field
duplicate samples shall be collected in close proximity to normal samples at sites specified in
Table 4.
Laboratory Duplicates
Laboratory duplicates will be used to assess the precision of the analytical method and laboratory
handling. No special sampling considerations are required, however, the request for laboratory
duplicate analysis shall be made on the chain- of – custody form for sites specified in Table 4.
Matrix Spike/ Matrix Spike Duplicate ( MS/ MSD)
MS/ MSD analysis will be used to assess the accuracy and precision of the analytical methods in
the sample matrix. No special sampling considerations are required, however, the request for
MS/ MSD analysis shall be made on the chain of custody form for the site specified in Table 4.
Caltrans Decanting Waste Characterization SAP 9 August 2003
Table 4. QA/ QC Schedule
Site
Number
Site Code Site Location QA/ QC
1 FB- SON- 101- 3.66- SB North Bay – Sonoma County Field Blank
8 FB- CC- 4- 30.0- EB Delta – Contra Costa County Field Blank
10 FD- SM- 380- 4.8 West Bay – San Mateo County Field Duplicate
13 ALA- 880- 20.8- NB East Bay – Alameda County Laboratory Duplicate
16 SCL- 101- 34.8- NB South Bay – Santa Clara MS/ MSD
Field Documentation
For each site sampled, complete the following paperwork:
􀂉 Sketch of the site, including location of decanting site, materials, and BMPs
􀂉 Sampling Observation form ( Appendix C), including attached copies of digital photos
􀂉 Chain of Custody ( COC) form ( Appendix D). Identify on the COC form any unusual
sampling conditions, deviations from this Sampling Plan, and reasons any sampling did
not occur as planned.
Handling and Transport of Samples
The samples should be shipped to the laboratory, under Chain of Custody, on the day of sample
collection. Notify the laboratory ahead of time so that they are prepared to accept the shipment.
If it is not possible to transport the sample to the laboratory the day of sample collection, then
ship as soon as possible the next working day, replacing ice as needed to ensure sample
preservation.
Samples held pending transport to the laboratory should be kept in an ice chest or transferred to a
refrigerator and maintained at a temperature of 4° C ( 39° F). All sediment samples shall be
submitted with a completed Chain of Custody form to the County selected certified laboratory
for analysis.
Caltrans Decanting Waste Characterization SAP 10 August 2003
Shipping Information
Samples shall be shipped for next morning delivery the following address:
ToxScan
Attn: Doug Clark
42 Hangar Way
Watsonville, California
United States, 95076
Phone: 408- 724- 4522
Caltrans Decanting Waste Characterization SAP 11 August 2003
LABORATORY ANALYSES AND QUALITY ASSURANCE
Sample Test Methods
Decanting waste samples collected during this study will be analyzed for the parameters listed in
Table 5, in accordance with approved EPA test methods at the specified detection limits.
Table 5. Testing Parameters, EPA Testing Methods
Constituent EPA
Method
Reportin
g
Limit
Units Holding
Time
Metals:
Antimony 6010 1 μg/ kg 6 months
Arsenic 6010 2 μg/ kg 6 months
Barium 6010 2 μg/ kg 6 months
Beryllium 6010 1 μg/ kg 6 months
Cadmium 6010 1 μg/ kg 6 months
Chromium 6010 1 μg/ kg 6 months
Cobalt 6010 1 μg/ kg 6 months
Copper 6010 1 μg/ kg 6 months
Lead 6010 1 μg/ kg 6 months
Mercury 7410 0.02 μg/ kg 6 months
Molybdenum 6010 1 μg/ kg 6 months
Nickel 6010 2 μg/ kg 6 months
Selenium 6010 2 μg/ kg 6 months
Silver 6010 1 μg/ kg 6 months
Thallium 6010 1 μg/ kg 6 months
Vanadium 6010 1 μg/ kg 6 months
Zinc 6010 5 μg/ kg 6 months
Fuel Related:
TPH Diesel 8015 100 μg/ kg 14 days
BTEX Compounds 8021 0.5 μg/ kg 14 days
Data Review
The laboratory shall submit the sample results to the within 18 calendar days of receipt of the
samples. Laboratory reports shall reviewed to verify that the samples were analyzed as
requested and that proper QA/ QC procedures were followed.
Quality Assurance and Quality Control
Quality Assurance and Quality Control ( QA/ QC) is achieved through accurate application of
both field and laboratory measures. These measures include field documentation of sample
collection according to approved procedures; collection of field duplicates, as discussed
previously; and the use of a qualified, certified laboratory, which conducts its own internal
QA/ QC, as discussed below.
Caltrans Decanting Waste Characterization SAP 12 August 2003
Laboratory QA/ QC
The internal quality control conducted by the laboratory includes laboratory duplicates, matrix
spikes, matrix spike duplicates, method blanks and laboratory control samples. QA/ QC reports
will be generated by the laboratory and delivered to the County along with the data reports.
Out- of- Range Data
Laboratory results shall be evaluated for out- of- range data. Sample results that appear out- of-range
shall be verified with the laboratory. If the laboratory verifies the result, the determination
will be made if a second digestion and analysis of the sample shall be requested. If the result of
a second analysis is generally consistent with the original, the original result shall be accepted.
If the result of the second sample digestion and analysis is generally inconsistent with the
original, a third confirming sample digestion and analysis shall be requested. Two consistent
results shall be deemed a confirmed result. If all results are inconsistent, the laboratory shall be
contacted, and the capabilities of the laboratory for this assignment discussed.
Sample Holding by Laboratory
All samples for applicable inorganic analyses shall be held by the laboratory for a minimum of
three months beyond the sample receipt date before they are discarded. All samples for organic
analyses shall be held at the laboratory until analytical holding times have expired. All digested
sample aliquots shall be held by the laboratory for a minimum of 30 days beyond their sample
receipt date before they are discarded.
Caltrans Decanting Waste Characterization SAP 13 August 2003
DATA ANALYSIS, INTERPRETATION, AND MANAGEMENT
Data Analysis
All laboratory data resulting from decanting waste sampling shall be analyzed statistically using
an adaptation of the U. S. EPA’s 1986 Test Methods for Evaluating Solid Waste, also known as
SW- 846. The SW- 846 method is the California Department of Toxic Substances Control’s
accepted method for determining whether a solid waste is hazardous.
Data Report
Following sampling at all 18 decanting sites, a summary of the data analyses shall be presented
in a technical memorandum, to include the following information, at a minimum:
• List of sites that were monitored;
• Descriptive statistics, including the means and ranges of pollutant concentrations found
in monitored sits;
• Confidence interval analyses;
• Determination of compliance with applicable waste disposal standards;
• Description of any unusual circumstances that occurred during sample collection; and
• Recommendations for management and disposal of waste.
APPENDIX A
Decanting Site Location Maps
APPENDIX B
Random Numbers Table
78 3 66 49 8 91 1 82 75 53 74 74 40 91 77 6 12 27 74
24 6 17 24 5 8 87 36 56 61 21 93 78 57 56 45 77 78 82
67 42 16 11 6 92 88 26 38 5 14 7 33 28 88 3 70 4 70
66 52 92 91 67 88 46 40 25 92 75 36 76 43 68 42 32 90 4
95 93 82 52 5 97 50 78 38 4 24 35 71 68 30 23 65 91 34
11 99 6 89 76 41 26 90 81 61 15 20 17 20 16 6 53 23 94
27 50 73 43 3 29 14 58 98 29 39 31 40 58 94 31 50 32 51
51 83 20 77 1 61 61 67 52 88 12 80 31 16 32 48 21 94 49
74 86 53 66 96 85 56 8 68 46 14 18 18 33 10 23 8 8 47
68 66 72 55 70 71 52 57 55 98 29 53 64 20 83 36 75 82 90
12 94 21 39 23 48 69 72 44 87 40 90 30 96 63 91 17 39 35
89 27 52 83 100 88 60 71 21 86 13 42 40 57 42 96 54 14 38
92 32 50 53 86 33 32 47 72 26 13 27 79 52 27 57 89 19 57
66 10 59 81 46 51 26 3 60 82 34 38 38 47 8 34 17 19 96
32 75 5 5 98 7 84 87 26 70 97 27 40 84 62 26 69 70 20
54 59 59 81 87 20 55 72 75 53 66 33 71 7 37 58 93 61 13
55 42 95 19 34 58 71 15 98 75 83 99 56 17 26 32 96 89 78
35 71 71 8 85 94 94 75 68 74 97 67 88 25 91 78 64 45 64
47 53 54 97 58 63 58 37 13 24 63 31 13 70 13 20 92 11 97
31 36 42 98 92 96 36 24 23 15 36 19 56 13 43 55 17 42 22
70 48 63 11 9 91 56 64 3 75 30 41 4 25 41 87 33 10 4
29 9 38 78 84 93 23 99 1 9 39 46 49 82 19 29 88 51 95
68 62 84 47 38 83 76 56 92 69 43 32 97 51 24 81 44 99 61
36 42 31 25 47 69 68 52 42 8 5 39 97 98 82 74 30 9 10
76 90 12 90 32 25 51 98 60 20 18 27 46 2 30 63 57 81 75
39 91 74 92 89 10 1 65 19 21 89 59 85 78 13 65 42 6 68
50 46 68 2 60 89 17 51 97 56 94 98 90 44 60 80 29 54 64
48 2 26 67 37 4 76 32 67 79 18 97 17 68 92 98 82 30 16
81 76 9 31 69 30 85 64 44 10 60 24 53 38 6 55 73 34 60
61 48 18 88 48 82 86 39 16 45 32 43 64 51 77 22 41 11 3
26 25 63 17 51 11 83 29 78 20 89 65 79 91 14 52 79 15 17
95 42 82 22 68 35 35 51 27 38 81 53 1 89 10 65 13 36 75
29 89 75 50 19 80 21 14 39 1 59 89 8 13 99 7 18 38 97
7 64 87 72 77 11 83 6 35 12 99 70 100 13 4 8 15 86 45
53 64 81 96 67 6 11 42 68 9 33 52 97 6 54 34 26 9 15
27 21 36 23 83 60 41 14 64 7 74 41 69 86 6 70 12 33 89
42 4 63 58 5 75 39 22 62 46 23 23 4 73 87 98 95 55 38
45 65 3 76 70 41 48 68 3 77 18 53 57 49 91 14 6 80 99
40 82 64 91 75 45 74 4 49 16 88 47 73 13 8 96 55 14 96
85 10 83 82 30 35 92 86 1 16 44 29 100 6 66 27 52 33 43
42 95 94 42 35 40 69 88 46 41 20 65 27 80 12 96 16 35 52
18 30 19 57 27 12 13 54 71 88 80 64 21 84 9 68 72 46 44
79 75 99 90 17 82 38 36 55 54 72 22 4 1 71 19 25 89 47
14 25 19 66 63 13 56 93 55 26 11 91 29 48 29 54 93 54 33
27 34 41 50 3 56 90 97 79 33 81 92 66 56 99 47 64 68 86
53 69 60 16 17 27 15 74 90 27 62 82 79 79 8 84 95 65 17
51 40 19 29 47 14 50 67 41 95 58 13 75 70 44 15 57 63 17
43 79 79 76 6 31 20 30 6 49 23 25 64 29 71 41 14 41 79
83 28 64 80 37 50 55 16 39 79 49 14 43 67 51 18 76 1 40
60 87 96 20 77 35 10 97 14 84 9 69 36 7 2 1 85 85 47
16 18 97 26 35 67 96 24 59 62 3 91 48 21 88 63 26 28 84
61 77 53 51 68 36 16 79 54 92 98 75 67 73 31 69 4 16 30
86 14 98 48 70 60 90 32 26 88 33 65 18 1 26 12 98 85 22
71 73 56 25 23 5 37 96 34 62 15 40 3 20 20 47 79 42 13
38 31 51 81 52 85 72 24 96 87 71 66 17 66 85 36 66 16 70
32 75 58 5 84 97 28 17 46 32 55 56 44 59 3 71 31 26 63
APPENDIX C
Field Log/ Observation Form
DECANTING SITE SAMPLING
FIELD LOG/ OBSERVATION FORM
Sampling Date: Sampling Time:
Site Number: Site Code: Location:
Sampling Personnel:
Weather Conditions:
Check all that apply: 􀂆 Decanting Site 􀂆 Temporary Storage Site 􀂆 Signage
􀂆 Sweeper Waste 􀂆 Highway Grindings 􀂆 Fence/ gate
􀂆 Rock 􀂆 Other Materials:
Waste Characteristics ( odor, color, oil, etc):
Grid Locations Sampled ( plane/ depth):
Existing BMPs:
􀂆 Run- on prevention ( ditch, berm, swale)
􀂆 Decanting location away from watercourses in area not prone to flooding
􀂆 Sediment control ( silt fence, straw bale, fiber roll)
􀂆 Other:
Recommended BMPs or Site Improvements:
Comments:
􀂆 Site Sketch Completed 􀂆 Photographs Taken
APPENDIX D
Chain of Custody Form
TOXSCAN CHAIN- OF- CUSTODY PAGE ____ OF ____
COMPANY NAME: COMMENTS/ SPECIAL INSTRUCTIONS:
ATTN:
ADDRESS:
PHONE: LAB USE ONLY
FAX: STORAGE LOCATION
E- MAIL: FREEZER #
PROJECT NAME: SEND INVOICE TO: REFRIGERATOR #
PROJECT NUMBER: P. O. / CONTRACT NO: SHELF#
Lab Use Only
ID Number Sampling
Date
Sampling
Time
Sample
Type
Sample
Preservative
Bottle
Type
Bottle
Size
No. of
Bottles SAMPLE CONDITION
SAMPLER'S SIGNATURE AND PRINTED NAME:
RELINQUISHED BY ( SIGNATURE AND PRINTED NAME): RECEIVED BY ( SIGNATURE AND PRINTED NAME): DATE: TIME:
TOXSCAN INC.
42 Hangar Way
Watsonville, CA 95076
PHONE: 831- 724- 4522
FAX: 831- 724- 3188
E- Mail:
chemistry@ toxscan com
Client Sample Identification
ANALYSIS( ES) REQUESTED
CHECK THE APPROPRIATE BOX BELOW
Sample Information Bottle or Container Information:
APPENDIX C
Monitoring Results
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Antimony ( Sb) 0.654 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Antimony ( Sb) 3.08 0.1 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Antimony ( Sb) 0.582 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Antimony ( Sb) 0.547 0.1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Antimony ( Sb) 0.709 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Antimony ( Sb) 0.821 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Antimony ( Sb) 0.81 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Antimony ( Sb) 4.49 0.1 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Antimony ( Sb) 1.99 0.1 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Antimony ( Sb) 3.48 0.1 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Antimony ( Sb) 0.58 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Antimony ( Sb) 2.5 0.1 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Antimony ( Sb) 0.997 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Antimony ( Sb) 0.916 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Antimony ( Sb) 1.82 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Antimony ( Sb) 1.76 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Antimony ( Sb) 0.887 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Arsenic ( As) 2.02 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Arsenic ( As) 5.97 0.1 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Arsenic ( As) 3.07 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Arsenic ( As) 4.19 0.1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Arsenic ( As) 7.1 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Arsenic ( As) 9.31 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Arsenic ( As) 2.15 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Arsenic ( As) 3.7 0.1 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Arsenic ( As) 2.9 0.1 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Arsenic ( As) 1.97 0.1 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Arsenic ( As) 2.74 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Arsenic ( As) 2.66 0.1 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Arsenic ( As) 5.28 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Arsenic ( As) 4.32 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Arsenic ( As) 2.14 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Arsenic ( As) 2.94 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Arsenic ( As) 3.16 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Barium ( Ba) 117 1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Barium ( Ba) 180 0.5 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Barium ( Ba) 153 0.5 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Barium ( Ba) 196 0.25 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Barium ( Ba) 381 1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Barium ( Ba) 582 1 mg/ kg EPA 6020
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 1 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Barium ( Ba) 132 0.5 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Barium ( Ba) 210 0.5 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Barium ( Ba) 161 0.5 mg/ kg EPA 6020 EST- FD
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Barium ( Ba) 315 0.5 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Barium ( Ba) 209 0.5 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Barium ( Ba) 147 0.5 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Barium ( Ba) 272 0.5 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Barium ( Ba) 223 0.5 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Barium ( Ba) 136 1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Barium ( Ba) 184 0.5 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Barium ( Ba) 227 0.5 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
2 SON- 116- 6.15- WB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
3 SOL- 80- 41.2- WB 8/ 11/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
4 SOL- 80- 32.6- EB 8/ 11/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
5 SOL- 80- 23.9- WB 8/ 11/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
6 SOL- 12- 3.2- EB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
8 CC- 4- 30.0- EB 8/ 13/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
9 CC- 24- 0.95- WB 8/ 13/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
10 SM- 380- 4.8- WB 8/ 13/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
11 SM- 92- 13.8- EB 8/ 13/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
12 SM- 280- 6.9- SB 8/ 13/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
13 ALA- 880- 20.8- NB 8/ 13/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
14 ALA- 580- 17.7- WB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
15 ALA- 680- 7.48- SB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
16 SCL- 101- 34.8- NB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
17 SCL- 85- 10.6- SB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
18 SCL- 101- 0.0- NB 8/ 12/ 2003 McCampbell Analytical Benzene < 0.005 0.005 mg/ kg SW 8015Cm
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Beryllium ( Be) 0.251 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Beryllium ( Be) 0.286 0.1 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Beryllium ( Be) 0.211 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Beryllium ( Be) 0.277 0.1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Beryllium ( Be) 0.285 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Beryllium ( Be) 0.362 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Beryllium ( Be) 0.138 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Beryllium ( Be) 0.235 0.1 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Beryllium ( Be) 0.168 0.1 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Beryllium ( Be) 0.127 0.1 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Beryllium ( Be) 0.351 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Beryllium ( Be) < 0.5 0.5 mg/ kg EPA 6020
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 2 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Beryllium ( Be) 0.314 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Beryllium ( Be) < 0.5 0.5 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Beryllium ( Be) 0.225 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Beryllium ( Be) 0.199 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Beryllium ( Be) 0.396 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.273 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.603 0.1 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Cadmium ( Cd) 0.303 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Cadmium ( Cd) 0.247 0.1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Cadmium ( Cd) 0.133 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.184 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Cadmium ( Cd) 0.337 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Cadmium ( Cd) 1.64 0.1 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Cadmium ( Cd) 0.717 0.1 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Cadmium ( Cd) 1.01 0.1 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Cadmium ( Cd) 0.444 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Cadmium ( Cd) 0.874 0.1 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.794 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.589 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.446 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.97 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Cadmium ( Cd) 0.354 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Chromium ( Cr) 47.5 0.1 mg/ kg EPA 6020 LB
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Chromium ( Cr) 56.2 0.1 mg/ kg EPA 6020 LB
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Chromium ( Cr) 66.8 0.1 mg/ kg EPA 6020 LB
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Chromium ( Cr) 67.3 0.1 mg/ kg EPA 6020 LB
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Chromium ( Cr) 29.2 0.1 mg/ kg EPA 6020 LB
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Chromium ( Cr) 28.1 0.1 mg/ kg EPA 6020 LB
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Chromium ( Cr) 39.8 0.1 mg/ kg EPA 6020 LB
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Chromium ( Cr) 43 0.1 mg/ kg EPA 6020 LB
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Chromium ( Cr) 58.9 0.1 mg/ kg EPA 6020 LB
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Chromium ( Cr) 57.3 0.1 mg/ kg EPA 6020 LB
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Chromium ( Cr) 144 0.1 mg/ kg EPA 6020 LB
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Chromium ( Cr) 77.3 0.25 mg/ kg EPA 6020 LB
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Chromium ( Cr) 37.6 0.1 mg/ kg EPA 6020 LB
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Chromium ( Cr) 57.8 0.1 mg/ kg EPA 6020 LB
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Chromium ( Cr) 51.6 1 mg/ kg EPA 6020 LB
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Chromium ( Cr) 78.1 0.1 mg/ kg EPA 6020 LB
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Chromium ( Cr) 35.4 0.1 mg/ kg EPA 6020 LB
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Cobalt ( Co) 16.3 0.1 mg/ kg EPA 6020
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 3 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Cobalt ( Co) 17.4 0.1 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Cobalt ( Co) 9.87 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Cobalt ( Co) 13.7 0.25 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Cobalt ( Co) 20.2 0.25 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Cobalt ( Co) 30.6 0.25 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Cobalt ( Co) 22.4 0.5 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Cobalt ( Co) 9.58 0.25 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Cobalt ( Co) 10.1 0.5 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Cobalt ( Co) 10.9 0.25 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Cobalt ( Co) 25.6 0.25 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Cobalt ( Co) 11.2 0.25 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Cobalt ( Co) 10.3 0.5 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Cobalt ( Co) 5.64 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Cobalt ( Co) 7.35 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Cobalt ( Co) 7.78 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Cobalt ( Co) 5.29 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Copper ( Cu) 23.9 0.25 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Copper ( Cu) 22.9 0.25 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Copper ( Cu) 25.5 0.25 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Copper ( Cu) 27 0.25 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Copper ( Cu) 34.4 0.25 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Copper ( Cu) 41 0.25 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Copper ( Cu) 53.8 0.5 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Copper ( Cu) 72.9 0.25 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Copper ( Cu) 94.1 0.5 mg/ kg EPA 6020 EST- FD
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Copper ( Cu) 71.5 0.25 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Copper ( Cu) 32.3 0.25 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Copper ( Cu) 52.5 0.25 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Copper ( Cu) 57.9 0.5 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Copper ( Cu) 24.2 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Copper ( Cu) 19.2 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Copper ( Cu) 26.5 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Copper ( Cu) 21.2 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
2 SON- 116- 6.15- WB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
3 SOL- 80- 41.2- WB 8/ 11/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
4 SOL- 80- 32.6- EB 8/ 11/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
5 SOL- 80- 23.9- WB 8/ 11/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
6 SOL- 12- 3.2- EB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
8 CC- 4- 30.0- EB 8/ 13/ 2003 McCampbell Analytical Ethylbenzene 0.045 0.005 mg/ kg SW 8015Cm
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 4 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
9 CC- 24- 0.95- WB 8/ 13/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
10 SM- 380- 4.8- WB 8/ 13/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
11 SM- 92- 13.8- EB 8/ 13/ 2003 McCampbell Analytical Ethylbenzene 0.0074 0.005 mg/ kg SW 8015Cm
12 SM- 280- 6.9- SB 8/ 13/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
13 ALA- 880- 20.8- NB 8/ 13/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
14 ALA- 580- 17.7- WB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
15 ALA- 680- 7.48- SB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
16 SCL- 101- 34.8- NB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
17 SCL- 85- 10.6- SB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
18 SCL- 101- 0.0- NB 8/ 12/ 2003 McCampbell Analytical Ethylbenzene < 0.005 0.005 mg/ kg SW 8015Cm
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Lead ( Pb) 180 0.5 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Lead ( Pb) 56.3 0.25 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Lead ( Pb) 69.5 0.25 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Lead ( Pb) 65 0.5 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Lead ( Pb) 16.1 1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Lead ( Pb) 16.6 1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Lead ( Pb) 29.2 0.5 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Lead ( Pb) 470 2 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Lead ( Pb) 148 0.5 mg/ kg EPA 6020 EST- FD
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Lead ( Pb) 54.1 0.5 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Lead ( Pb) 48.9 0.5 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Lead ( Pb) 98 0.5 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Lead ( Pb) 269 0.5 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Lead ( Pb) 407 2 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Lead ( Pb) 218 1 mg/ kg EPA 6020 NRMS
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Lead ( Pb) 611 2.5 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Lead ( Pb) 82.1 2.5 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Mercury ( Hg) 0.0787 0.02 mg/ kg EPA 7471A
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Mercury ( Hg) 3.96 0.02 mg/ kg EPA 7471A
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Mercury ( Hg) 0.076 0.02 mg/ kg EPA 7471A
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Mercury ( Hg) 0.057 0.02 mg/ kg EPA 7471A
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Mercury ( Hg) 0.021 0.02 mg/ kg EPA 7471A
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Mercury ( Hg) 0.031 0.02 mg/ kg EPA 7471A
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Mercury ( Hg) 0.146 0.02 mg/ kg EPA 7471A
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Mercury ( Hg) 0.188 0.02 mg/ kg EPA 7471A
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Mercury ( Hg) 0.063 0.02 mg/ kg EPA 7471A EST- FD
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Mercury ( Hg) 0.044 0.02 mg/ kg EPA 7471A
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Mercury ( Hg) 0.042 0.02 mg/ kg EPA 7471A
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Mercury ( Hg) 0.066 0.02 mg/ kg EPA 7471A
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Mercury ( Hg) 0.03 0.02 mg/ kg EPA 7471A
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 5 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Mercury ( Hg) 0.064 0.02 mg/ kg EPA 7471A
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Mercury ( Hg) 0.036 0.02 mg/ kg EPA 7471A
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Mercury ( Hg) 0.059 0.02 mg/ kg EPA 7471A
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Mercury ( Hg) 0.045 0.02 mg/ kg EPA 7471A
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 1.87 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 0.64 0.1 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Molybdenum ( Mo) 1.12 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Molybdenum ( Mo) 0.722 0.1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Molybdenum ( Mo) 0.698 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 1.6 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Molybdenum ( Mo) 3.17 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Molybdenum ( Mo) 3.27 0.1 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Molybdenum ( Mo) 2.7 0.1 mg/ kg EPA 6020 EST- FD
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Molybdenum ( Mo) 2.72 0.1 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Molybdenum ( Mo) 0.933 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Molybdenum ( Mo) 2.68 0.1 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 1.52 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 1.67 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 2.25 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 1.79 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Molybdenum ( Mo) 0.954 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Nickel ( Ni) 31.7 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Nickel ( Ni) 406 0.5 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Nickel ( Ni) 89.7 0.25 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Nickel ( Ni) 105 0.25 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Nickel ( Ni) 23.5 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Nickel ( Ni) 31.7 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Nickel ( Ni) 23.7 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Nickel ( Ni) 28.3 0.1 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Nickel ( Ni) 30.4 0.1 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Nickel ( Ni) 52.7 0.1 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Nickel ( Ni) 155 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Nickel ( Ni) 43.5 0.1 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Nickel ( Ni) 27.5 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Nickel ( Ni) 32.9 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Nickel ( Ni) 46.8 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Nickel ( Ni) 70.3 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Nickel ( Ni) 21.3 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Selenium ( Se) < 0.1 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Selenium ( Se) 0.209 0.1 mg/ kg EPA 6020
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 6 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Selenium ( Se) < 0.1 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Selenium ( Se) 0.179 0.1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Selenium ( Se) 0.262 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Selenium ( Se) 0.356 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Selenium ( Se) 0.138 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Selenium ( Se) 0.284 0.1 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Selenium ( Se) 0.205 0.1 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Selenium ( Se) 0.14 0.1 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Selenium ( Se) 0.474 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Selenium ( Se) 0.287 0.1 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Selenium ( Se) 0.213 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Selenium ( Se) 0.321 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Selenium ( Se) 1.08 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Selenium ( Se) 0.169 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Selenium ( Se) 0.278 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Silver ( Ag) 0.171 0.1 mg/ kg EPA 6020 HB
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Silver ( Ag) 0.219 0.1 mg/ kg EPA 6020 HB
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Silver ( Ag) 0.1 0.1 mg/ kg EPA 6020 HB
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Silver ( Ag) 0.184 0.1 mg/ kg EPA 6020 HB
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Silver ( Ag) 0.102 0.1 mg/ kg EPA 6020 HB
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Silver ( Ag) 0.123 0.1 mg/ kg EPA 6020 HB
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Silver ( Ag) < 0.1 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Thallium ( Tl) 0.144 0.1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Thallium ( Tl) 0.226 0.1 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Thallium ( Tl) 0.121 0.1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Thallium ( Tl) < 0.25 0.25 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Thallium ( Tl) < 0.25 0.25 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Thallium ( Tl) < 0.25 0.25 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Thallium ( Tl) < 0.5 0.5 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Thallium ( Tl) < 0.25 0.25 mg/ kg EPA 6020
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 7 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Thallium ( Tl) < 0.5 0.5 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Thallium ( Tl) < 0.25 0.25 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Thallium ( Tl) < 0.25 0.25 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Thallium ( Tl) < 0.25 0.25 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Thallium ( Tl) < 0.5 0.5 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Thallium ( Tl) < 0.1 0.1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Thallium ( Tl) < 0.1 0.1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Thallium ( Tl) < 0.1 0.1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Thallium ( Tl) 0.149 0.1 mg/ kg EPA 6020
1 SON- 101- 3.66- SB 8/ 12/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
2 SON- 116- 6.15- WB 8/ 12/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
3 SOL- 80- 41.2- WB 8/ 11/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
4 SOL- 80- 32.6- EB 8/ 11/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
5 SOL- 80- 23.9- WB 8/ 11/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
6 SOL- 12- 3.2- EB 8/ 12/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
8 CC- 4- 30.0- EB 8/ 13/ 2003 McCampbell Analytical Toluene 0.12 0.005 mg/ kg SW 8015Cm
9 CC- 24- 0.95- WB 8/ 13/ 2003 McCampbell Analytical Toluene 0.03 0.005 mg/ kg SW 8015Cm
10 SM- 380- 4.8- WB 8/ 13/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
11 SM- 92- 13.8- EB 8/ 13/ 2003 McCampbell Analytical Toluene 0.0076 0.005 mg/ kg SW 8015Cm
12 SM- 280- 6.9- SB 8/ 13/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
13 ALA- 880- 20.8- NB 8/ 13/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
14 ALA- 580- 17.7- WB 8/ 12/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
15 ALA- 680- 7.48- SB 8/ 12/ 2003 McCampbell Analytical Toluene < 0.005 0.005 mg/ kg SW 8015Cm
16 SCL- 101- 34.8- NB 8/ 12/ 2003 McCampbell Analytical Toluene 0.013 0.005 mg/ kg SW 8015Cm
17 SCL- 85- 10.6- SB 8/ 12/ 2003 McCampbell Analytical Toluene 0.025 0.005 mg/ kg SW 8015Cm
18 SCL- 101- 0.0- NB 8/ 12/ 2003 McCampbell Analytical Toluene 0.01 0.005 mg/ kg SW 8015Cm
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics 81 50 mg/ kg EPA 8015B
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics < 50 50 mg/ kg EPA 8015B
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan TPH- Diesel Range Organics 200 100 mg/ kg EPA 8015B
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan TPH- Diesel Range Organics 180 100 mg/ kg EPA 8015B SHB
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan TPH- Diesel Range Organics < 10 10 mg/ kg EPA 8015B
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics < 10 10 mg/ kg EPA 8015B
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan TPH- Diesel Range Organics 220 100 mg/ kg EPA 8015B SHB
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan TPH- Diesel Range Organics 450 100 mg/ kg EPA 8015B SHB
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan TPH- Diesel Range Organics 310 50 mg/ kg EPA 8015B EST- FD
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan TPH- Diesel Range Organics 110 50 mg/ kg EPA 8015B
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan TPH- Diesel Range Organics 60 20 mg/ kg EPA 8015B
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan TPH- Diesel Range Organics 110 50 mg/ kg EPA 8015B EST- NR
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics 150 50 mg/ kg EPA 8015B
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics 51 50 mg/ kg EPA 8015B
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 8 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics 280 50 mg/ kg EPA 8015B SHB
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics 82 50 mg/ kg EPA 8015B
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan TPH- Diesel Range Organics < 50 50 mg/ kg EPA 8015B SHB
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan TPH- Waste Oil 460 100 mg/ kg EPA 8015B
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan TPH- Waste Oil 800 100 mg/ kg EPA 8015B
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan TPH- Waste Oil 620 200 mg/ kg EPA 8015B
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan TPH- Waste Oil < 200 200 mg/ kg EPA 8015B SHB
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan TPH- Waste Oil < 20 20 mg/ kg EPA 8015B
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan TPH- Waste Oil < 20 20 mg/ kg EPA 8015B
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan TPH- Waste Oil 870 200 mg/ kg EPA 8015B SHB
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan TPH- Waste Oil 1100 200 mg/ kg EPA 8015B SHB
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan TPH- Waste Oil 1000 100 mg/ kg EPA 8015B
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan TPH- Waste Oil 1500 100 mg/ kg EPA 8015B
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan TPH- Waste Oil 500 40 mg/ kg EPA 8015B
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan TPH- Waste Oil 530 100 mg/ kg EPA 8015B EST- NR
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan TPH- Waste Oil 1000 100 mg/ kg EPA 8015B
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan TPH- Waste Oil 400 100 mg/ kg EPA 8015B
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan TPH- Waste Oil 800 100 mg/ kg EPA 8015B SHB
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan TPH- Waste Oil 620 100 mg/ kg EPA 8015B
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan TPH- Waste Oil 530 100 mg/ kg EPA 8015B SHB
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Vanadium ( V) 68.3 0.1 mg/ kg EPA 6020 LB
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Vanadium ( V) 43 0.1 mg/ kg EPA 6020 LB
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Vanadium ( V) 63.4 0.1 mg/ kg EPA 6020 LB
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Vanadium ( V) 60.1 0.1 mg/ kg EPA 6020 LB
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Vanadium ( V) 86.3 0.25 mg/ kg EPA 6020 LB
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Vanadium ( V) 95.9 0.25 mg/ kg EPA 6020 LB
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Vanadium ( V) 59.4 0.1 mg/ kg EPA 6020 LB
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Vanadium ( V) 48.6 0.1 mg/ kg EPA 6020 LB
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Vanadium ( V) 51.7 0.1 mg/ kg EPA 6020 LB
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Vanadium ( V) 63.2 0.1 mg/ kg EPA 6020 LB
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Vanadium ( V) 60.9 0.1 mg/ kg EPA 6020 LB
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Vanadium ( V) 45.8 0.1 mg/ kg EPA 6020 LB
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Vanadium ( V) 62.1 0.1 mg/ kg EPA 6020 LB
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Vanadium ( V) 54.3 0.1 mg/ kg EPA 6020 LB
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Vanadium ( V) 49.3 0.1 mg/ kg EPA 6020 LB
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Vanadium ( V) 56.2 0.1 mg/ kg EPA 6020 LB
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Vanadium ( V) 59.6 0.1 mg/ kg EPA 6020 LB
1 SON- 101- 3.66- SB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
2 SON- 116- 6.15- WB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
3 SOL- 80- 41.2- WB 8/ 11/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 9 11/ 13/ 2003
CALTRANS DECANTING WASTE CHARACTERIZATION ANALYTICAL DATA
SITE
CODE SITE SAMPLE
DATE LAB NAME CONSTITUENT RESULT DET LIMIT UNITS METHOD QUALIFIERS
4 SOL- 80- 32.6- EB 8/ 11/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
5 SOL- 80- 23.9- WB 8/ 11/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
6 SOL- 12- 3.2- EB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
8 CC- 4- 30.0- EB 8/ 13/ 2003 McCampbell Analytical Xylenes 0.085 0.005 mg/ kg SW 8015Cm
9 CC- 24- 0.95- WB 8/ 13/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
10 SM- 380- 4.8- WB 8/ 13/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
11 SM- 92- 13.8- EB 8/ 13/ 2003 McCampbell Analytical Xylenes 0.08 0.005 mg/ kg SW 8015Cm
12 SM- 280- 6.9- SB 8/ 13/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
13 ALA- 880- 20.8- NB 8/ 13/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
14 ALA- 580- 17.7- WB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
15 ALA- 680- 7.48- SB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
16 SCL- 101- 34.8- NB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
17 SCL- 85- 10.6- SB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
18 SCL- 101- 0.0- NB 8/ 12/ 2003 McCampbell Analytical Xylenes < 0.005 0.005 mg/ kg SW 8015Cm
1 SON- 101- 3.66- SB 8/ 12/ 2003 Toxscan Zinc ( Zn) 93.2 1 mg/ kg EPA 6020
2 SON- 116- 6.15- WB 8/ 12/ 2003 Toxscan Zinc ( Zn) 498 2.5 mg/ kg EPA 6020
3 SOL- 80- 41.2- WB 8/ 11/ 2003 Toxscan Zinc ( Zn) 148 1 mg/ kg EPA 6020
4 SOL- 80- 32.6- EB 8/ 11/ 2003 Toxscan Zinc ( Zn) 156 1 mg/ kg EPA 6020
5 SOL- 80- 23.9- WB 8/ 11/ 2003 Toxscan Zinc ( Zn) 51.2 1 mg/ kg EPA 6020
6 SOL- 12- 3.2- EB 8/ 12/ 2003 Toxscan Zinc ( Zn) 53 1 mg/ kg EPA 6020
8 CC- 4- 30.0- EB 8/ 13/ 2003 Toxscan Zinc ( Zn) 105 1 mg/ kg EPA 6020
9 CC- 24- 0.95- WB 8/ 13/ 2003 Toxscan Zinc ( Zn) 408 2.5 mg/ kg EPA 6020
10 SM- 380- 4.8- WB 8/ 13/ 2003 Toxscan Zinc ( Zn) 406 5 mg/ kg EPA 6020
11 SM- 92- 13.8- EB 8/ 13/ 2003 Toxscan Zinc ( Zn) 268 2.5 mg/ kg EPA 6020
12 SM- 280- 6.9- SB 8/ 13/ 2003 Toxscan Zinc ( Zn) 476 2.5 mg/ kg EPA 6020
13 ALA- 880- 20.8- NB 8/ 13/ 2003 Toxscan Zinc ( Zn) 614 0.5 mg/ kg EPA 6020
14 ALA- 580- 17.7- WB 8/ 12/ 2003 Toxscan Zinc ( Zn) 137 1 mg/ kg EPA 6020
15 ALA- 680- 7.48- SB 8/ 12/ 2003 Toxscan Zinc ( Zn) 156 1 mg/ kg EPA 6020
16 SCL- 101- 34.8- NB 8/ 12/ 2003 Toxscan Zinc ( Zn) 316 1 mg/ kg EPA 6020
17 SCL- 85- 10.6- SB 8/ 12/ 2003 Toxscan Zinc ( Zn) 170 1 mg/ kg EPA 6020
18 SCL- 101- 0.0- NB 8/ 12/ 2003 Toxscan Zinc ( Zn) 90.2 1 mg/ kg EPA 6020
See end of Appendix C for Qualifier Definitions
Caltrans Decanting Waste Assessment and Waste Characterization C- 10 11/ 13/ 2003
APPENDIX D
QA/ QC Methods and Results
QUALITY ASSURANCE/ QUALITY CONTROL ( QA/ QC)
This section presents the results of quality assurance/ quality control ( QA/ QC) analyses and an
evaluation the QA/ QC analytical data collected. The purpose of the QA/ QC review is to identify
any apparent QA/ QC problems that may limit or bias reported data. QA/ QC samples were
collected and analyzed at five decanting sites, as shown in Table 3.
The laboratories ( Toxscan and McCampbell Analytical Inc.) delivered all data reports in a hard
copy report format. The hard copy format is considered the official record of results and is the
report examined in the initial screening of the analytical data.
Table 3. Quality Control Sample Collection Schedule
Site
Number
Site Code Site Location QA/ QC
1 FB- SON- 101- 3.66- SB North Bay – Sonoma County Field Blank
8 FB- CC- 4- 30.0- EB Delta – Contra Costa County Field Blank
10 FD- SM- 380- 4.8- WB West Bay – San Mateo County Field Duplicate
13 ALA- 880- 20.8- NB East Bay – Alameda County Laboratory Duplicate
16 SCL- 101- 34.8- NB South Bay – Santa Clara MS/ MSD
QA/ QC Methods
QA/ QC methods used to evaluate laboratory performance are described below. QA/ QC results
are presented in the following section.
Initial Screening
The initial screening process is conducted when a laboratory report is received. The reported
data are checked as soon as possible to identify any gross errors in the sampling, analysis, or
reporting processes. Reported data are checked against the chain of custody forms and for
adherence to specifications in the Caltrans Decanting Waste Characterization Sampling and
Analysis Plan, August 2003, and for questionable ( out- of- range) analytical results. The initial
screening includes the checks on the following items:
• Laboratory reporting errors – identify typographical errors, incorrect units, etc.
• Completeness – were all the analyses performed as requested?
• Holding times – were all analyses performed within prescribed holding times?
• Detection limits – did reported analytical detection limits meet requirements?
Reported concentrations that appear to be out of range or are inconsistent with other results are
indicators of potential laboratory errors, including reporting problems ( e. g., typographical
errors). Such results are investigated when detected. An example of this would be a constituent
concentration that is orders of magnitude different than the same constituent for other sites. The
results are also reviewed to ensure that all chain- of- custody requests were completed as
requested and that analyses were performed within the method- prescribed holding time.
Detection limit requirements are also checked to ensure that the laboratory is performing as
required.
The initial screening typically involves additional communication with the laboratory and
requests for amended laboratory reports. When an amended laboratory report is issued it
supersedes previously- issued reports.
QA/ QC Data Evaluation
The QA/ QC data evaluation assesses contamination, precision, and accuracy. Both a laboratory-initiated
assessment ( internal QA/ QC) and a field- initiated assessment ( external QA/ QC) are
performed. All QA/ QC results are included in Appendix B. QA/ QC results are compared to
program control limits based on EPA methods, internal laboratory standards, and historical
laboratory performance. The laboratory identifies out- of- range internal QA/ QC results and
reports them in the report narrative. Externally- identified out- of- range results were reported to
the laboratory for verification and case- by- case discussion. Environmental results are qualified
based on the QA/ QC results and EPA guidance for metals1 and organics. 2
The manually- verified QA/ QC data are imported from a spreadsheet format into a relational
database system. The database is structured to apply QA/ QC qualification to individual data
points in the environmental data set based on the QA/ QC results.
Contamination Checks
Contamination of samples is assessed using method and field blanks. Blanks are prepared using
reagent grade de- ionized water and tested using analytical procedures identical to those used for
the environmental samples. The conditions under which the blanks are prepared follow, as
closely as possible, the conditions in the field or laboratory, as appropriate for the type of blank.
A method ( or reagent) blank is analyzed, by the analytical laboratory, for every batch of samples.
The method blank is a reagent grade volume of de- ionized water tested using analytical
procedures identical to those used for the environmental samples. A detected concentration is an
indication of contamination in the analytical process.
When detected blank concentrations ( or hit) are reported, treatment of environmental data is
done according to EPA protocols, as follows. A field blank is prepared in the field, using
procedures that simulate the actual field sampling procedures. A hit reported in a field blank
1 United States Environmental Protection Agency. April 1995. Guidance on the Documentation and Evaluation of
Trace Metals Data Collected for Clean Water Act Compliance Monitoring. EPA 821- B- 95- 002.
2 United States Environmental Protection Agency. June 1991 Draft. National Functional Guidelines for Organic
Data Review. EPA 540- R- 94- 090.
indicates that contamination has occurred at some point during the equipment cleaning, field
sampling, or analytical procedures.
Where environmental sample results for metals and organics are detected at levels less than 5
times the detected blank result, the environmental results are qualified as not detected at the
reported concentration of the environmental sample. When the environmental sample results for
metals are detected at levels greater than 5 but less than 10 times the detected blank result, the
environmental results are qualified as upper limits of the true concentration.
Accuracy Checks
Accuracy checks consist of measurements of the recovery of a “ spike” of a known concentration,
followed by calculation of percent recovery according to the following formula:
R = 100%*[( Cs- C) ÷s]
Where, R = percent recovery
Cs = spiked sample concentration
C = sample concentration ( for spiked matrices)
s = concentration equivalent of spike added.
Laboratory control samples ( LCS) and standard reference material ( SRM) are batch checks for
recovery of a known concentration of a standard solution used to assess the accuracy of the entire
recovery process from preparation of the sample to analysis. LCS samples are analyzed in the
same manner as the environmental samples.
Matrix spike analysis involves the introduction of a known spike in the original " matrix" ( sample
solution), and is a measure of the accuracy of the recovery performance of the laboratory.
Matrix interference can lead to recovery problems and raised detection limits. Re- analysis is the
first corrective action once matrix interference problems are identified, but re- analysis is only
possible when sufficient sample volume is available.
Surrogate matrix spikes are used as a check on the extraction process for organic compounds.
Surrogate recovery checks use organic compounds other than the constituent being tested for, but
with similar chemical characteristics. The surrogate used is easier to distinguish from other
compounds and can be more accurately extracted and recovered.
Precision Checks
Precision is the measurement of the difference between samples that are presupposed to be
replicates ( i. e., collected and analyzed in the same manner). The relative percent difference
( RPD) is calculated as a measure of the difference between replicate samples. The RPD is
calculated from field duplicate, lab duplicate, matrix spike duplicate and laboratory spike
duplicate data as follows:
RPD = 100%*| R1- R2| ÷[( R1+ R2) ÷2]
Where, RPD = relative percent difference
R1 = replicate sample # 1
R2 = replicate sample # 2
Laboratory duplicates are samples split in the laboratory to measure the precision of the
laboratory analysis, including the sub- sampling process ( the process of splitting a sample from a
parent sample).
Field duplicates are sampled one directly after the other in the field and submitted to the
laboratory as separate samples. Field duplicates provide a measure of the concentration
variability introduced by field and laboratory procedures.
Matrix spike duplicate ( MSD) analysis checks the precision of the matrix spike ( MS) recovery.
Ideally, triple the normal sample volume is available for the analysis of a MS and a MSD.
Laboratory control spike duplicate ( LCSD) analysis checks the precision of the LCS recovery.
Field and laboratory duplicate samples must have a RPD less than the maximum allowable value
( MAV) or have an absolute difference of one detection limit or less. LCS and MS replicates
must have an RPD less than the MAV. Maximum allowable RPD values, out- of range results,
and the resulting data qualifications are presented in Appendix C.
QA/ QC Results
The following sub- sections present QA/ QC results from the contract laboratories used in
Decanting- Pit Waste Characterization sampling. Specific issues include laboratory performance
with regard to internal and external QA/ QC analyses, and detection limits achieved. Field
blanks, reagent ( method) blanks, field duplicates, laboratory duplicates, matrix spikes, matrix
spike duplicates, laboratory control spikes, laboratory control spike duplicates, standard
reference material and surrogate spikes were all considered in the analysis of laboratory
performance. All QA/ QC results are reported in Appendix B.
Initial Screening
Laboratory data problems encountered during the initial screening process of the Decanting- Pit
Waste Characterization sample analytical data are as follows:
The mercury result reported for Site 2 was observed to be significantly higher than the mercury
results reported for all of the other sites. The Site 2 mercury result was reported to be 3.96
mg/ kg, while the reported mercury results for the other 16 sites ranged from 0.021 to 0.188
mg/ kg. Therefore, the analytical laboratory was contacted and asked to review the Site 2 result.
After the laboratory confirmed the result, they were asked to re- analyze the sample. The re-analysis
( although preformed out of hold time) produced a similar result to that of the original,
thereby confirming the original result.
Laboratory duplicate analysis for mercury, requested on the Site 13 sample, was not analyzed as
requested on the chain of custody. Follow- up correspondence with the analytical laboratory
revealed that the laboratory duplicate analysis was not conducted due to a laboratory error.
Contamination Checks
No metals, TPH- Diesel Range Organics, TPH- Waste Oil, or BTEX compounds were detected in
the method blanks. Therefore, there are no detected sources of sample contamination attributable
to analytical processes.
No metals, TPH- Diesel Range Organics, TPH- Waste Oil, or BTEX compounds were detected in
the field blanks, with the exception of chromium. Chromium was detected in one of the two
field blanks, at a concentration of 1.2 μg/ L. Since the chromium field blank result is reported at
such a low concentration, well below chromium levels detected in all of the decanting- pit waste
samples, no data qualification is required.
Accuracy
The standard reference material percent recovery results for chromium and vanadium were less
than the lower acceptability limits. Therefore, the environmental samples associated with the
standard reference material results were qualified as “ low bias” ( LB). The standard reference
material percent recovery result for silver was greater than the upper acceptability limit.
Therefore, the environmental samples associated with standard reference material result were
qualified as “ high bias” ( HB).
The matrix spike result for TPH- Diesel Range Organics at Site 16 is reported as “ Not Reported”
and flagged in the lab report as “ The MS/ MSD are outside QC limits due to sample matrix
interference.” Because of this sample matrix interference, no percent recovery could be
calculated for this QA/ QC result to measure the accuracy of the recovery performance by the
laboratory for TPH- Diesel Range Organics. Therefore, no data qualification resulted.
The surrogate spike results for TPH- Diesel Range Organics and TPH- Waste Oil at Sites 4, 8, 9,
16, and 18 were greater than the upper acceptability limit, and the environmental results were
reported above the detection limit. Therefore, the environmental sample results associated with
the surrogate spikes were qualified as “ surrogate high bias” ( SHB).
Based on the QA/ QC spike results, the appropriate environmental data points have been qualified
and reported in Appendix C.
Precision
The calculated relative percent difference between the environmental results and laboratory
duplicate results for TPH- Diesel Range Organics and TPH- Waste Oil at Site 13 were greater
than the maximum allowable value RPD. Therefore, the environmental sample results were
qualified as “ estimated and not reproducible due to analytical variability” ( EST- NR).
The calculated relative percent difference between the environmental results and field duplicate
results for barium, copper, lead, mercury, molybdenum, and TPH- Diesel Range Organics at Site
10 were greater than the maximum allowable value RPD. Therefore, the environmental sample
results were qualified as “ estimated” ( EST- FD).
The calculated relative percent difference between the matrix spike and matrix spike duplicate
for lead at Site 16 was greater than the maximum allowable value RPD. Therefore, the
environmental sample associated with the matrix spike duplicate result is qualified as “ not
reproducible due to matrix spike variability” ( NRMS).
The matrix spike and matrix spike duplicate percent recovery results for TPH- Diesel Range
Organics at Site 16 were reported as “ Not Reported” and flagged in the lab report as “ The
MS/ MSD are outside QC limits due to sample matrix interference.” Because of this sample
matrix interference no percent recovery or relative percent difference could be calculated for
these QA/ QC results to measure the precision of the matrix spike recovery of TPH- Diesel Range
Organics. Therefore, no data qualification resulted.
The appropriate environmental data points have been qualified and reported in Appendix C.
Holding Times Achieved
All analyses were conducted within the maximum allowable holding times specified by the
analytical methods.
CALTRANS DECANTING WASTE CHARACTERIZATION QA/ QC DATA
SITE CO