HomeMy WebLinkAbout16019_Enfield_GW Report_201509231
Macdonald, Janet K
From:Macdonald, Janet K
Sent:Monday, October 05, 2015 4:21 PM
To:'Phil Rahn'
Cc:Dawson, Amos; Nicole.Mikulas@acegroup.com; 'Venkat Puranapanda';
dlockhart@ei1.com
Subject:RE: Old QFP August 2015 Groundwater Monitoring Report
Your monitoring report has been received by the REC Program. I noticed that the graph for MW‐14 did not reflect the
recent increase in contaminant concentrations (the highest reported concentration) in a downgradient monitoring well.
Additional monitoring may be needed to understand site conditions following the drip pad removal, and ensure
ecological environments and surface waters are not at risk.
Thank you,
Janet
Janet Macdonald
Phone: (919) 707‐8349
E‐mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties unless the content is exempt by statute or other regulation.
‐‐‐‐‐Original Message‐‐‐‐‐
From: Phil Rahn [mailto:prahn@watersedgeenv.com]
Sent: Monday, October 05, 2015 3:28 PM
To: Macdonald, Janet K <janet.macdonald@ncdenr.gov>
Cc: Dawson, Amos <adawson@williamsmullen.com>; Nicole.Mikulas@acegroup.com; 'Venkat Puranapanda'
<Venkat.Puranapanda@acegroup.com>; dlockhart@ei1.com
Subject: Old QFP August 2015 Groundwater Monitoring Report
Janet‐ Attached is the August 2015 Groundwater Monitoring Report for Old QFP.
Phillip Rahn
President
Waters Edge Environmental
4901 Waters Edge Drive, Suite 201
Raleigh, NC 27606
prahn@watersedgeenv.com
919.219.5820 (cell)
919.859.9987 (office)
919.859.9930 (fax)
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
21144 US Highway 301 South
Enfield, North Carolina
Docket No. 09-SF-285
September 23, 2015
Prepared For
Old QFP, Inc.
Prepared By
The EI Group, Inc.
Morrisville, North Carolina
Mr. Darren Lockhart P.G. #2130
2101 Gateway Centre Boulevard, Suite 200
Morrisville, North Carolina 27560
919.657.7500
dlockhart@ei1.com
and
Waters Edge Environmental LLC
Raleigh, North Carolina
Mr. Phillip Rahn P.G. #386
Waters Edge Environmental
4901 Waters Edge Drive, Suite 201
Raleigh, North Carolina 27606
919.859.9987
prahn@watersedgeenv.com
WATERS EDGE ENVIRONMENTAL, LLC
4901 WATERS EDGE DRIVE, SUITE 201 RALEIGH, NC 27606 PHONE 919.859.9987 FAX 919.859.9930
September 23, 2015
Mrs. Janet MacDonald - NCDENR REC Program
Inactive Hazardous Sites Branch
401 Oberlin Road, Suite 150
Raleigh, North Carolina 27605
Reference: August 2015 Groundwater Monitoring Report
Old QFP Site
21144 US Highway 301 South
Enfield, North Carolina
Docket No. 09-SF-285
Waters Edge Project No. R9-01
Dear Mrs. MacDonald:
Environmental Investigations/Waters Edge Environmental LLC is pleased to provide the enclosed
August 2015 Groundwater Monitoring Report that we have prepared for Old QFP, Inc.
If you have any questions, please contact us at (919) 859-9987.
Sincerely,
THE EI GROUP, INC.
WATERS EDGE ENVIRONMENTAL LLC
Darren R. Lockhart P.G. Mike Walker PE, CEM, LEED-AP
EI-Manager of Environmental Operations
Phillip L. Rahn, P.G., RSM
Waters Edge-Senior Project Manager
15-045/PLR/dl
ii
Table of Contents
1.0 EXECUTIVE SUMMARY ....................................................................................................... 1
2.0 REC REPORT REQUIREMENTS............................................................................................ 3
3.0 SITE INFORMATION .............................................................................................................. 4
3.1 Site Identification ...................................................................................................................... 4
3.2 Contact Information .................................................................................................................. 4
3.3 Site Characteristics .................................................................................................................... 5
3.3.1 Site Location ................................................................................................................. 5
3.3.2 Land Use ....................................................................................................................... 6
3.3.3 Topography and Surface Water .................................................................................... 7
3.3.4 Geology and Hydrogeology .......................................................................................... 7
3.3.5 Operational History ....................................................................................................... 7
3.3.6 Regulatory History ........................................................................................................ 8
4.0 AUGUST 2015 SAMPLING EVENT ....................................................................................... 9
4.1 Groundwater Sampling ............................................................................................................. 9
4.2 Surface Water Sampling ......................................................................................................... 10
5.0 RESULTS ................................................................................................................................ 11
5.1 Groundwater Flow and Hydraulic Gradient ........................................................................... 11
5.2 Groundwater Analytical Results ............................................................................................. 11
5.4 Quality Assurance/Quality Control (QA/QC)-(.0306(h)(4)) .................................................. 12
6.0 CONCLUSIONS AND RECOMMENDATIONS .................................................................. 12
7.0 CERTIFICATIONS (.0306(B)(1-2)) ....................................................................................... 14
iii
List of Figures
Figure 1 Facility Location Map
Figure 2 Site Location Map
Figure 3 Groundwater Contour Map (August 2015)
Figure 4 Arsenic Isoconcentration Map (August 2015)
Figure 5 Boron Isoconcentration Map (August 2015)
Figure 6 Chromium Isoconcentration Map (August 2015)
Figure 7 Surface Water Sampling Location Map
List of Tables
Table 1 Groundwater Elevation Results
Table 2 Water Quality Parameters
Table 3 Historic and Current Groundwater Analytical Results
List of Appendices
Appendix A Groundwater Analytical Results
Appendix B Certification Statements
iv
Acronym List
AA Administrative Agreement
ACQ Alkaline Copper Quaternary
AOC area of concern
AST above ground storage tank
BGS below ground surface
BRL below reportable limits
°C Celsius
COCs Constituents of Concern
CORPS US Army Corps of Engineers
CCA Chromated-Copper Arsenate
EI EI Group, Inc.
Ft/ft Foot per foot
FWP Fortress Wood Products
G-P Georgia-Pacific
GRG Groundwater Remediation Goal
mg/kg milligrams per kilograms or parts per million
HWS Hazardous Waste Section
IDW Investigation-Derived Wastes
LUR Land Use Restrictions
NC North Carolina
NCDENR North Carolina Department of Environment and Natural Resources
2L North Carolina Groundwater Standards
MSCC Maximum Soil Contaminant Concentrations
MSL Mean Seal Level
v
Acronym List (continued)
PQL Practical Quantitation Limits
PPM Priority Pollutant Metals
PVC Polyvinyl Chloride
QFP Quality Forest Products
REC Registered Environmental Consultant
RPD Relative Percent Difference
SAP Sampling and Analysis Plan
SIC Standard Industrial Classification
SOPs Standard Operating Procedures
SRG Soil Remediation Goals
SVOCs semi-volatile organic compounds
TCLP Toxicity Characteristic Leaching Procedure
TICs Tentatively Identified Compounds
USEPA United States Environmental Protection Agency
USGS United States Geological Survey
UST underground storage tank
VOCs volatile organic compounds
Waters Edge Waters Edge Environmental, LLC
Page 1 of 14
August 2015 Groundwater Monitoring Report
Former Old QFP, Inc. Facility
Enfield, North Carolina
September 23, 2015
1.0 EXECUTIVE SUMMARY
Based on the August 2015 groundwater sampling event and analytical results, our conclusions are as
follows:
Groundwater flows to the south/southeast on a horizontal gradient of approximately 0.009
ft./ft. This is consistent with historic readings since MW-15 was installed in 2014.
Inorganics were detected at concentrations above the GRGs for groundwater monitoring
wells MW-1, MW-3, MW-6R, MW-7, MW-12, MW-13, and MW-14, with the highest
concentrations detected at MW-13 for arsenic (1.1 mg/L), MW-3 for boron (0.99 mg/L)
and MW-3 for chromium (0.36 mg/L). Several monitoring wells were not sampled,
because they are not essential for plume delineation, and it is not cost effective to monitor
them. Once certain of the monitoring wells with historic sampling results orders of
magnitude above GRGs have been reduced to at or near the GRG standard, we plan to
sample all monitoring wells for all parameters for purposes of demonstrating that all
GRGs have been met. This is the eighth groundwater monitoring event following soil
removal actions in 2011 when over 4,479 tons of concrete and soil were removed from
eleven AOCs at the site. We conclude that analytical results have demonstrated either
stable or declining trends with the exception of the following:
1. MW-3- arsenic and chromium are demonstrating recent increasing trends.
2. MW-7- arsenic is demonstrating a recent increasing trend.
3. MW-12- arsenic is demonstrating a recent increasing trend.
4. MW-13- arsenic is demonstrating a recent slight increasing trend.
These recent increasing trends should be evaluated in light of the recent RCRA pads soils
and concrete source removal activities in 2014, as referenced below, which caused a
considerable amount of soil and shallow groundwater disturbance. We anticipate that in
the long term, stable to decreasing trends will resume as the effects of the soil and
shallow groundwater table disturbances subside.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 2 of 14
In the fourth quarter 2013, testing was conducted on the two (2) RCRA pads and the
underlying soils. The testing demonstrated that the RCRA pads and soil were not
characteristic of hazardous wastes. Subsequent to testing, the two (2) RCRA concrete
pads were removed along with approximately one (1) foot of the soil below the pads to a
depth of approximately two (2) feet bgs which is close to the shallow groundwater table.
In the first quarter of 2014, the concrete pads were disposed in a land clearing and inert
debris landfill located in Raleigh, North Carolina and the soils were disposed at the
Republic Landfill located in Aulander, North Carolina.
The RCRA pads and soil were immediately upgradient of MW-3 and MW-4. Therefore,
this sampling round represents the second post-excavation groundwater sampling
subsequent to these remedial efforts. The results from MW-3 detected both increasing
results for arsenic (0.022 mg/L in 2013, 0.034 mg/L in 2014 and 0.32 mg/L in 2015) and
chromium (BRL in 2013, 0.0085 mg/L in 2014 and 0.36 mg/L in 2015) while boron
decreased (1.6 mg/L in 2013, 0.99 mg/L in 2014 and 0.99 mg/L in 2015). The results for
MW-4 were BRL for boron and chromium in 2013, and 2014 and 2015, while arsenic
demonstrates an overall decreasing trend from 0.033 mg/L in 2013, BRL in 2014 and
0.012 mg/L in 2015. As indicated above, we anticipate that after the effects of the soil and
shallow groundwater table disturbances subside, the stable to decreasing trends will
resume in all wells.
MW-15 (upgradient monitoring well) and MW-6R were below all GRGs with the
exception of MW-6R detecting arsenic at 0.015 mg/L which is slightly above the GRG at
0.01 mg/L. Therefore, the upgradient and eastern limits of the plume is delineated. While
the southern downgradient portion of the plume has GRG exceedances, it has been
concluded that further assessment is not technically prudent due to the fact that this area is
considered wetlands. The amount of disturbance to emplace a monitoring well would be
considerable and the surface water discharge represented by Fishing Creek is relatively
close to the existing downgradient monitoring wells.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 3 of 14
Arsenic and chromium appear to be the most prevalent constituents exceeding GRGs at the
site, while boron GRG exceedances are limited to only several wells for the wells tested.
Two surface water samples were collected (SW-1 (Upstream) and SW-2 (Downstream)).
The Upstream sample and Downstream samples were below BRL and had no NCDENR
2B surface water standard exceedances. The Midstream sample was collected in standing
water prior to reaching Fishing Creek, and we have determined this to be classified as
Swamp Water. This sample did exhibit arsenic (0.83 mg/L) and chromium (0.089 mg/L);
however, the Swamp Water classification in NCDENR 2B has no standards for either
constituent. This would indicate that there is some impacted groundwater discharging into
the Fishing Creek; however, it dissipates to below 2B Standard at the downgradient
property line. As discussed in past remedial investigation reports, the southern portion of
the site is comprised of freshwater forested/shrub wetlands and is considered a sensitive
receptor. The elevated detection of arsenic in the Swamp Water would be considered
impact to a sensitive receptor and thus, has been noted in a past report. While this is
notable, we still do not consider this to be an imminent threat (0305(b)(2)).
2.0 REC REPORT REQUIREMENTS
We have complied with the REC Guidance document requirements for this report as follows:
Report Submission (.0302(l)) - Waters Edge is an approved REC firm, and Mr. Phillip Rahn
is the RSM. All reports with appendices are kept on file electronically at our office located
at 4901 Waters Edge Drive, Suite 201, Raleigh, North Carolina 27606. This report has been
submitted to NCDENR within 30 days of its certification and can be obtained at the
NCDENR office located at 401 Oberlin Road, Suite 150, Raleigh, North Carolina 27605.
Imminent Hazard (.0305(b)(2))- During this investigation, no imminent hazards were
discovered onsite that would require a 24-hour submittal to NCDENR.
Sensitive Environments, Mixed Chemical and Radioactive Wastes, or Off-site Migration of
Hazardous Substances (.0305 (b)(3))- During this investigation, no additional sensitive
environments were found other than the wetlands in the southern portion of the property,
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 4 of 14
which have previously been discussed. There were no mixed chemical or radioactive wastes
or off-site migration of hazardous substances documented requiring written 24-hour
submittal to NCDENR.
Sample Collection and Analytical Procedures (.0306(C))- We utilized EPA approved
sampling procedures.
Community HASP (.0306(d))- A community HASP has been previously written and was
appended to the September 16, 2009 Remedial Investigation Work Plan.
3.0 SITE INFORMATION
3.1 Site Identification
Date of Report: September 23, 2015
Facility I.D.: Docket No. 09-SF-285
Incident Number (if known): 87916 Site Rank: N/A
Site Name: Former Old QFP Facility
Site Street Address: 21144 US Highway 301 South
City/Town: Enfield State: NC Zip Code: 27823 County: Halifax
Description of Geographical Data Point (e.g., dispenser):
US 301 South Between Whitakers and
Enfield, NC
Location Method (GPS, topographical map, other): GPS and topographical map
Latitude: 36.1543 N Longitude: 77.6903 W
3.2 Contact Information
Site Owner: Old QFP, Inc. sold the site to Enfield Timber, LLC on 7/8/13; See below.
Address:
Old QFP, Inc., 327 Jefferson Street, Roanoke Rapids, NC
27870 Tel.: 336.339.3027
Operator: Old QFP, Inc. sold the Site to Enfield Timber, LLC on or about 7/8/13.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 5 of 14
Property Owner/Occupant: Enfield Timber, LLC.
Address: 2200 Barnetts Road, Providence Forge, Va.,23140.
Tel: 443.324.9969
Consultant/Contractor: EI/Waters Edge Environmental
Address:
2101 Gateway Centre Boulevard, Suite 200,
Morrisville, NC 27560
4901 Waters Edge Drive, Suite 201, Raleigh, NC 27606 Tel:
919.657.7500
919.859.9987
Analytical Laboratory: Prism State Certification No. 402
Address: 449 Springbrook Road, Charlotte, NC 28224 Tel: 704.525.0409
3.3 Site Characteristics
3.3.1 Site Location
EI and Waters Edge, on behalf of Old QFP, Inc., successor to QFP Inc., have conducted several
phases of site investigation and remediation at the subject facility, located at 21144 US Highway 301
South (36.1543 north latitude and 77.6903 west longitude) in Enfield, Halifax County, North
Carolina. The subject facility, referred to as the “Site” or “subject property” henceforth, is 58.7
acres, of which approximately 18 acres were used for facility operations (see Figure 1).
The area of investigation and remediation is located on the parcel west of Highway 301. It is
bounded to the north by G-P-Industrial Wood Products Division; to the east by Highway 301,
Dennis Street, and undeveloped land; to the south by Fishing Creek; and to the west by Seaboard
Coastline Railway (see Figures 2 and 3). The southern property boundary is formed by Fishing
Creek and by extensive wooded bottomlands (e.g., wetlands - swamp) along both sides of Fishing
Creek.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 6 of 14
3.3.2 Land Use
The subject property consists of two separate parcels of land separated by Highway 301. The
property west of the highway borders Fishing Creek and contains structures and features associated
with wood treatment activities, kiln drying of lumber and lumber storage. The tract of land on the
east side of Highway 301 consists of farm fields, wooded, and undeveloped land. The subject
property was operated by QFP from approximately 1980 until August 9, 2006 and by Fortress Wood
Products (FWP) from August 10, 2006 to November 31, 2008 and then briefly from May 1, 2009
until May 31, 2009. It was inactive from that time until sold to Enfield Timber, LLC (Enfield) on or
about July 8, 2013. Based on a September 19, 2014 conversation with an Enfield representative (Mr.
George Junkin), Enfield has no current activities being conducted onsite but may have future
sawmill operations in the next year.
The southern portion of the 58.7-acre site is heavily vegetated. The working portions of the facility
operations were located in the central and northern 18-acre portion of the subject property. Most of
the facility buildings were located in the central portion of the Site, while the southern and northern
portions were primarily used to store wood products. Vehicular access to the Site is via two
driveways located on the eastern portion of the property adjacent to a trailer that was used as a
corporate office.
Pursuant to the Inactive Hazardous Site Program Guidelines for Assessment and Cleanup” (October
2008), during the EI June 1, 2009 RI, EI evaluated the Site and adjacent properties for the existence
of environmentally sensitive areas. The results of the evaluation revealed that except for wetland
areas, other environmentally sensitive areas were not present. According to the U.S. Fish & Wildlife
Service, Wetlands Online Mapper website (www.fws.gov/wetlands), “Freshwater Forested/Shrub
Wetland” areas (PFO1A) are present on the southern portion of the subject property extending
northward from the banks of Fishing Creek.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 7 of 14
3.3.3 Topography and Surface Water
Based on the USGS Enfield Quadrangle Topographic Map (see Figure 1), the elevations at the
subject property range between approximately 90 to 100 feet above msl. Surface runoff from the
Site generally flows south/southeast toward Fishing Creek.
3.3.4 Geology and Hydrogeology
Groundwater aquifers in the Coastal Plain Physiographic Province of North Carolina occur within a
wedge of sediment layers that dip and thicken to the southeast. These formations make up the
Yorktown Formation aquifer system. The groundwater system in the Coastal Plain Physiographic
Province of North Carolina typically consists of shallow groundwater within the sedimentary strata.
Depth to groundwater is variable and typically ranges from 1 to 50 feet bgs. Depth to groundwater
and groundwater flow direction are often interpretable from regional patterns and topographic
gradient. The water table typically conforms to the surface topography and may be influenced by
recharge and discharge capabilities of the soils. Other parameters affecting the water table are
permeability and storage capacity of the underlying soils as well as seasonal and climatic variations.
Groundwater at the Site occurs under unconfined water table conditions at depths of approximately
3-7 feet bgs in the northern portions of the property to at or near the ground surface in the southern
portions of the Site. The predominant hydrological feature at the subject property is Fishing Creek,
which represents the southern boundary of the property. Fishing Creek serves as a discharge feature,
or no flow boundary for shallow groundwater. As such, shallow groundwater flowing toward
Fishing Creek will discharge into the surface waters rather than continue across or beyond this
barrier. In addition, swampy areas and wetlands are present along the southern portion of the Site
(see Figures 1 and 2).
3.3.5 Operational History
Georgia-Pacific (GP) formerly operated a sawmill on the subject property, but the mill was
destroyed in a fire around 1975. QFP operated a treated wood products facility using a treatment
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 8 of 14
product known as CCA from 1977 until 2002. Beginning in 1985, QFP began using two other
treatment chemicals known as ACQ and D-Blaze. In addition to CCA, ACQ and D-Blaze were the
only treatment chemicals used at the facility during that time. When the production of CCA ended
in 2002, QFP continued to use ACQ and D-Blaze at the facility. In 2005, Old QFP leased the
facility to FWP, which ceased operations at the facility on May 31, 2009. During its tenure at the
facility, FWP used ACQ and D-Blaze in its treatment operations. On or about July 8, 2013 Old QFP
sold the facility to Enfield Timber, LLC, 2200 Barnetts Road, Providence Forge, Va.,23140.
Enfield Timber has received a determination from DENR that it is eligible for a Brownfields
Agreement for the property on which the facility is located and work on the Brownsfield Agreement
is in progress.
3.3.6 Regulatory History
During QFP’s and FWP’s ownership of the facility, they operated two concrete drip pads (East and
West Pads) in accordance with 40 CFR 262.34(a). These were subsequently closed according to
RCRA guidance in 2009. As a result of the findings of initial soil and groundwater investigations,
Old QFP elected to conduct further assessment and remediation activities under the REC Program.
On April 3, 2009, Old QFP entered into an AA for REC-Directed Assessment and Remedial Action
Pursuant to NCGS 130A-310.9(c) and 15A NCAC 13C.0300, Docket No. 09-SF-285. Subsequent to
entering into an AA, EI/Waters Edge submitted a February 8, 2010 Fourth Quarter 2009/First
Quarter 2010 Phase I/II Final Remedial Investigation Report which concluded that sufficient
investigation had been conducted for delineation of the soil, surface water sediment, surface water,
and groundwater at the Site and that the Site should proceed to a RAP. A September 14, 2010
Feasibility Study and RAP was submitted and implemented in 2011 when over 4,479 tons of
concrete and soil were removed from eleven AOCs at the site.
Subsequent to the soil RAP implementation, monitored natural attenuation was selected for the
groundwater remedial alternative. Pursuant to REC Rule .0306(o), EI/Waters Edge prepared and
certified quarterly remedial action progress reports for the first year subsequent to the RAP
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 9 of 14
implementation and have now reduced to an annual basis with this representing the second annual
report.
In the fourth quarter 2013, testing was conducted on the two (2) RCRA pads and soils below the
RCRA pads which determined that the pads and soil were not hazardous wastes. Subsequent to
testing, the two (2) RCRA concrete pads were removed along with approximately one (1) foot of the
soil below the pads to a depth of approximately two (2) feet bgs which is close to the shallow
groundwater table. The concrete pads were disposed in a land clearing and inert debris landfill
located in Raleigh, North Carolina and the soils were disposed at the Republic Landfill located in
Aulander, North Carolina.
4.0 AUGUST 2015 SAMPLING EVENT
4.1 Groundwater Sampling
On August 20th, 2015, EI/Waters Edge field personnel sampled monitoring wells MW-1, MW-3,
MW-4, MW-6R, MW-7, MW-12, MW-13, MW-14, MW-15 (upgradient well), and DW-1 (see
Figure 2). Several monitoring wells were not sampled, because they are not essential for plume
delineation, and it is not cost effective to monitor them. Once certain of the monitoring wells with
historic sampling results orders of magnitude above GRGs have been reduced to at or near the GRG
standard, we plan to sample all monitoring wells for all parameters for purposes of demonstrating
that all GRGs have been met. The following monitoring wells were not sampled due to the following
rationale:
MW-2- Drop Well Periodically since it is internal well
MW-5- Drop Well Periodically since it is internal well
MW-8- Drop Well Periodically since we have new upgradient well MW-15
MW-9- Drop Well Periodically since it is interior well
MW-10- Drop Well Periodically since we have MW-12 immediately downgradient
MW-11- Not part of wells sampled
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 10 of 14
Before well purging and sampling activities were initiated, water level measurements were obtained
with an electric water level probe from all the above-mentioned monitoring wells. The measure was
recorded to within 0.01 foot and converted to feet above mean sea level (see Table 1 which includes
monitoring well construction data and screen intervals and Table 2 includes water quality
parameters).
Prior to sampling, each well was purged with a peristaltic pump according to EPA-accepted
procedures. All sampling activity data was documented on field log forms.
Groundwater samples were transferred to laboratory provided and preserved containers. The
samplers wore new disposable nitrile gloves during sampling procedures and changed gloves
between each well. All samples were labeled with a tag identifying the sample number, date, time,
location, analysis to be conducted, and sampler's initials. The samples were stored in a cooler and
chilled to approximately 4°C. The samples were transported to a North Carolina certified analytical
laboratory in accordance with EPA approved chain-of-custody procedures. All samples were
analyzed for total arsenic, boron, and chromium according to Method 6010C.
4.2 Surface Water Sampling
On August 20th, 2015, three surface water samples were collected at the locations shown on Figure
7. (Upstream, Midstream, and Downstream). Surface water samples were collected in laboratory
supplied containers. The samplers wore new disposable nitrile gloves during sampling procedures
and changed gloves between each surface water sampling location. All samples were labeled with a
tag identifying the sample number, date, time, location, analysis to be conducted, and sampler's
initials. The samples were stored in a cooler and chilled to approximately 4°C. The samples were
transported to a North Carolina certified analytical laboratory in accordance with EPA approved
chain-of-custody procedures. All samples were analyzed for total arsenic, boron, and chromium
according to Method 6010C.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 11 of 14
5.0 RESULTS
5.1 Groundwater Flow and Hydraulic Gradient
Shallow groundwater at the Site flows toward the south/southeast under an average horizontal
hydraulic gradient of approximately 0.009 ft./ft. (see Figure 3). This utilizes the reading at newly
installed upgradient well (MW-15) and the resulting gradient is much flatter than historic readings
before the monitoring well was emplaced in 2014.
5.2 Groundwater Analytical Results
The inorganic analytical results indicated the following exceedances of GRGs:
MW-1
Arsenic detected at 0.061 mg/L with GRG 0.01 mg/L
Chromium detected at 0.075 mg/L with GRG 0.01 mg/L
MW-3
Arsenic detected at 0.32 mg/L with GRG 0.01 mg/L
Boron detected at 0.99 mg/L with GRG 0.7 mg/L
Chromium detected at 0.36 mg/L with GRG 0.01 mg/L
MW-6R
Arsenic detected at 0.015 mg/L with GRG 0.01 mg/L
MW-7
Arsenic detected at 0.35 mg/L with GRG 0.01 mg/L
MW-12
Arsenic detected at 0.65 mg/L with GRG 0.01 mg/L
Chromium detected at 0.028 mg/L with GRG 0.01 mg/L
MW-13
Arsenic detected at 1.1 mg/L with GRG 0.01 mg/L
Chromium detected at 0.021 mg/L with GRG 0.01 mg/L
MW-14
Arsenic detected at 0.24 mg/L with GRG 0.01 mg/L
Boron detected at 0.82 mg/L with GRG 0.7 mg/L
Chromium detected at 0.031 mg/L with GRG 0.01 mg/L
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 12 of 14
We have provided the following:
Groundwater Contour Map- Figure 3
Arsenic Isoconcentration Map - Figure 4
Present and Historical Results - Table 3
Laboratory documentation - Appendix A.
5.4 Quality Assurance/Quality Control (QA/QC)-(.0306(h)(4))
All holding times were met.
6.0 CONCLUSIONS AND RECOMMENDATIONS
Based on the August 2015 groundwater and surface water analytical results, we have the following
conclusions and recommendations:
Groundwater flows to the south/southeast on a horizontal gradient of approximately 0.009
ft./ft. This is consistent with historic readings since MW-15 was installed in 2014.
Inorganics were detected at concentrations above the GRGs for groundwater monitoring
wells MW-1, MW-3, MW-6R, MW-7, MW-12, MW-13, and MW-14, with the highest
concentrations detected at MW-13 for arsenic (1.1 mg/L), MW-3 for boron (0.99 mg/L)
and MW-3 for chromium (0.36 mg/L). Several monitoring wells were not sampled,
because they are not essential for plume delineation, and it is not cost effective to monitor
them. Once certain of the monitoring wells with historic sampling results orders of
magnitude above GRGs have been reduced to at or near the GRG standard, we plan to
sample all monitoring wells for all parameters for purposes of demonstrating that all
GRGs have been met. This is the eighth groundwater monitoring event following soil
removal actions in 2011 when over 4,479 tons of concrete and soil were removed from
eleven AOCs at the site. We conclude that analytical results have demonstrated either
stable or declining trends with the exception of the following:
1. MW-3- arsenic and chromium are demonstrating recent increasing trends.
2. MW-7- arsenic is demonstrating a recent increasing trend.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 13 of 14
3. MW-12- arsenic is demonstrating a recent increasing trend.
4. MW-13- arsenic is demonstrating a recent slight increasing trend.
These recent increasing trends should be evaluated in light of the recent RCRA pads soils
and concrete source removal activities in 2014, as referenced below, which caused a
considerable amount of soil and shallow groundwater disturbance. We anticipate that in
the long term, stable to decreasing trends will resume as the effects of the soil and shallow
groundwater table disturbances subside.
In the fourth quarter 2013, testing was conducted on the two (2) RCRA pads and the
underlying soils. The testing demonstrated that the RCRA pads and soil were not
characteristic of hazardous wastes. Subsequent to testing, the two (2) RCRA concrete
pads were removed along with approximately one (1) foot of the soil below the pads to a
depth of approximately two (2) feet bgs which is close to the shallow groundwater table.
In the first quarter of 2014, the concrete pads were disposed in a land clearing and inert
debris landfill located in Raleigh, North Carolina and the soils were disposed at the
Republic Landfill located in Aulander, North Carolina.
The RCRA pads and soil were immediately upgradient of MW-3 and MW-4. Therefore,
this sampling round represents the second post-excavation groundwater sampling
subsequent to these remedial efforts. The results from MW-3 detected both increasing
results for arsenic (0.022 mg/L in 2013, 0.034 mg/L in 2014 and 0.32 mg/L in 2015) and
chromium (BRL in 2013, 0.0085 mg/L in 2014 and 0.36 mg/L in 2015) while boron
decreased (1.6 mg/L in 2013, 0.99 mg/L in 2014 and 0.99 mg/L in 2015). The results for
MW-4 were BRL for boron and chromium in 2013, and 2014 and 2015, while arsenic
demonstrates an overall decreasing trend from 0.033 mg/L in 2013, BRL in 2014 and
0.012 mg/L in 2015. . As indicated above, we anticipate that after the effects of the soil
and shallow groundwater table disturbances subside, the stable to decreasing trends will
resume in all wells.
August 2015 Groundwater Monitoring Report
Old QFP, Inc.
Enfield, North Carolina
September 23, 2015
Page 14 of 14
MW-15 (upgradient monitoring well) and MW-6R were below all GRGs with the
exception of MW-6R detecting arsenic at 0.015 mg/L which is slightly above the GRG at
0.01 mg/L. Therefore, the upgradient and eastern limits of the plume is delineated. While
the southern downgradient portion of the plume has GRG exceedances, it has been
concluded that further assessment is not technically prudent due to the fact that this area is
considered wetlands. The amount of disturbance to emplace a monitoring well would be
considerable and the surface water discharge represented by Fishing Creek is relatively
close to the existing downgradient monitoring wells.
Arsenic and chromium appear to be the most prevalent constituents exceeding GRGs at the
site, while boron GRG exceedances are limited to only several wells for the wells tested.
Two surface water samples were collected (SW-1 (Upstream) and SW-2 (Downstream)).
The Upstream sample and Downstream samples were below BRL and had no NCDENR
2B surface water standard exceedances. The Midstream sample was collected in standing
water prior to reaching Fishing Creek, and we have determined this to be classified as
Swamp Water. This sample did exhibit arsenic (0.83 mg/L) and chromium (0.089 mg/L);
however, the Swamp Water classification in NCDENR 2B has no standards for either
constituent. This would indicate that there is some impacted groundwater discharging into
the Fishing Creek; however, it dissipates to below 2B Standard at the downgradient
property line. As discussed in past remedial investigation reports, the southern portion of
the site is comprised of freshwater forested/shrub wetlands and is considered a sensitive
receptor. The elevated detection of arsenic in the Swamp Water would be considered
impact to a sensitive receptor and thus, has been noted in a past report. While this is
notable, we still do not consider this to be an imminent threat (0305(b)(2)).
7.0 CERTIFICATIONS (.0306(B)(1-2))
The requisite certifications are contained in Appendix B.
Figures
PROJECT LOCATION MAP
Old QFP Site
21144 Highway 301 South
Enfield, North Carolina
N
1:12,000SCALE:
Source:Topozone.com (1961)
ENVIRONMENTAL INVESTIGATIONS, INC
PROJECT NUMBER:ENMO060741.00
FIGURE NUMBER:1
SUBJECT PROPERTY
1-mile Radius Topographic Map
Old QFP Site
21144 Highway 301 South
Enfield, North Carolina
N
as shownSCALE:
Source:USGS Enfield Quad (1961)
ENVIRONMENTAL INVESTIGATIONS, INC
PROJECT NUMBER:ENMO081354.01
FIGURE NUMBER:2
SUBJECT PROPERTY
F'Il:iJRE ND,, 3
DRN BY• 11111.
CHK JY1 PUl
DATEi 71]:;!all:j
REVISED•
SCALE• 1· = l:iU'
$: ... • • • .. . . ~ . . . . ..... .. . . .. . . .. ... .. . . . .. . . .. . .. .. . • • t ... . . .,. ..... ... . .. . . . .. • • • • • t • a "' I • .. ., ... .,. .. v .·.·.·~·.·
1, ..... ,, .... • .. ••••••• .. • ...... • • • • • • •••• .. . . .
' • • • • • • • ........ • •••• • • • . ,. .... • • • . . .. .. •
. . . • • • • ' ... .. . . . ••• • • ' ~ ... • • • • • • • • • • • • . . . • • • • • • • • • . . . ~;-.., ... df"'1;'· • • . .. + ••
-. • • I ...... o • I ••
GRDUND\,IATER ELEVATION
CONTOUR MAP <AUGUST l!O, 2015>
Cid llFP Site
21144 Hlgmroy 301 South
Enfield, NDP'ih COr'DlfnQ
El
F'IGURE:: NDJ 4
DRN BY• DIIL
CHK BY• PLII'
DATE, '9Jt4/t20l5
REVISED,
SCAL.E• l' ~ J51)'
• • • • ' .. •• • • • ••• .. " .. . ... . -...... . ... . . . .. . .. -... .
,. ........ >. ,• .....
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-
• ••
•
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. ' ' • • • . . • • • • • • • • •• • • • • • • • . " • •
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I
I
:...:
of equa.l conc:errtr~tlonl
•d
!lwc,ite,r Re!'leclal Goa.I ~ 0.01 t,glL
ns 11'1 Gl"ounclwa wr <Mg/L)
I'll
ARSENIC ISDCDNCENTRA Tlctl HAP
<AUGUST 2015> El Did QF'P Site
21144 Hlgl'lwa.y '301 Soutt,
Enfield. North C0,r0Une1
F'IGURE ND, 5
DRN BY• DRL
CHK BY• PLI!
DATE, 91151c!OI!!
REVISED1
SCALE• l' ....
1 .. " • • • r • • • ...... -.... -······~ ,.·.·.~·.· )I.Ml/•.,•••.• t •. • • * ............ . . . . . . . --.........
• ... • • I • • " ...... . . ... . . .. . . .. . . .. . . . ..
• • 4' • ........... ......... . ... . . . .. . ..
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. . • • • . . • • • . . • ••
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(:
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BORON ISOCONCENTRATION MAP
CAU~ST 2015)
Cltl QF'P Stt•
211+4 Hghway 301 Scuii-1
El'lf'lllld, North CQl"Ol~a
ii
--
not used
p.
r RM•dlo.l Gaal = 0.7 l'lg/L
In Grounlllwct111" <,,tglL>
< t shown on ,icp).
~ El
F"ICiJRE ND,1 6
DRN BY• ..
CHK IIY• Pl.R
DATE, 'Nl:;lall5
REVISED•
SCALE• l' = 1511'
. . . . . . . .. .. ' ... ... -.... .. . . . . .
,. ...... 1j • • • • • • . . . . . . . . . . ... . . .. ' .. .. ~.·.·.·~· .. · , .... , ................. · .,., .. . .. . . . .. . . ... . . . . . .. . . .. . . ..
I • • • t • f .. ... . .. . -.
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1,
• • I: • -.. • •• •
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~ ....
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CHROMIUM ISDCCIIICENTRAlmN HAP
<AUGUST 2015>
Cld QFP Site
21.144 HlghwGy 301 South
EMf'leld, North Coroltio
"I !
--
i,ltDf'lng Yell
r.-ig Vell
R"r,eclo.l Gao.I • 0.01' l'IQIL
El
ST-1 (sediment)
Arsenic BRL
Chromium 23 mg/kg
Mercury BRL
ST-1 (water)
Arsenic BRL
Chromium BRL
Boron BRL
SURFACE WATER SAMPLING
LOCATION MAP
(AUGUST 2015)
Old QFP Site
21144 Highway 301 South
Enfield, North Carolina
N
1:12,000SCALE:
Source:Topozone.com (1961)
ENVIRONMENTAL INVESTIGATIONS, INC
PROJECT NUMBER:ENMO150135.00
FIGURE NUMBER:7
SUBJECT PROPERTY
Downstream
All analytes BRL
Upstream
All analytes BRL
Surface water quality sample
Midstream
Arsenic 0.83 mg/L
Boron 2.0 mg/L
Chromium 0.089 mg/L
NOTE: BQL = below quantitation limit for the laboratory method
Tables
TA
B
L
E
1
WE
L
L
C
O
N
S
T
R
U
C
T
I
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N
S
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8
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(
f
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MW
-
1
D
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c
-
8
7
2
U
n
k
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w
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k
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1
0
0
2
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8
9
7
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9
2
MW
-
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c
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8
7
2
2
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9
8
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0
0
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MW
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4
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9
5
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6
3
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5
6
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8
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2
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0
6
2
2
0
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0
0
5
-
2
0
1
0
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5
0
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N
M
MW
-
6
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3
0
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2
0
1
3
1
1
3
3
-
1
3
1
0
1
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2
4
9
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1
5
9
2
.
0
9
MW
-
7
3
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9
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7
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3
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1
3
9
7
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1
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3
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6
8
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3
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9
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1
1
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1
3
1
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5
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3
5
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N
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MW
-
9
5
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1
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1
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7
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7
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1
1
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5
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9
3
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MW
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1
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9
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1
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MW
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2
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1
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1
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2
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9
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9
9
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NM
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Table 2
Summary of Water Parameter Data - Old QFP
21144 Highway 301 South
Enfield, North Carolina
Sample
Date
26.52 0.205 28.1 2.43 7.02 108.1 0.00
26.52 0.205 28.0 2.42 7.02 108.3 0.00
26.52 0.205 28.0 2.42 7.04 108.7 0.30
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
22.60 0.437 12.1 1.05 6.82 65.2 0.00
22.61 0.437 12.1 1.05 6.82 65.3 0.00
22.61 0.437 12.1 1.05 6.82 65.7 0.00
21.92 0.646 19.2 1.66 6.71 -78.2 0.00
21.93 0.646 19.2 1.66 6.72 -78.3 0.00
21.93 0.646 19.2 1.66 6.72 -78.2 0.00
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
23.12 1.170 35.6 3.08 6.51 37.1 10.00
23.12 1.170 35.6 3.08 6.51 37.9 12.00
23.12 1.170 35.5 3.07 6.51 37.9 12.00
21.81 0.486 13.5 1.17 6.12 -81.8 14.00
21.81 0.486 13.5 1.17 6.12 -82.0 14.00
21.81 0.486 13.5 1.17 6.12 -82.1 15.00
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
NM NM NM NM NM NM NM
23.10 0.660 10.8 0.93 6.62 -75.9 55.00
23.10 0.660 10.8 0.93 6.63 -76.1 50.00
23.10 0.660 10.8 0.93 6.63 -76.2 50.00
22.22 0.775 2.0 0.17 6.78 -178.2 15.00
22.23 0.775 2.0 0.17 6.78 -178.5 12.00
22.23 0.775 2.0 0.17 6.78 -178.6 17.00
23.17 0.481 22.7 1.96 6.37 -30.1 11.00
23.17 0.481 22.7 1.96 6.37 -30.0 10.00
23.17 0.481 22.7 1.96 6.38 -30.5 10.00
22.52 0.163 24.2 2.09 6.70 258.3 45.00
22.52 0.163 24.2 2.09 6.70 258.7 45.00
22.53 0.163 24.2 2.09 6.69 258.1 45.00
22.03 0.479 29.7 2.57 7.11 -3.1 0.00
22.03 0.479 29.7 2.57 7.11 -3.5 0.00
22.03 0.479 29.7 2.57 7.11 -3.4 0.00
NM = not measured
MW-15 8/20/2015
DW-1 8/20/2015
MW-12 8/20/2015
MW-13 8/20/2015
MW-14 8/20/2015
MW-8 8/20/2015
MW-9 8/20/2015
MW-10 8/20/2015
MW-5 8/20/2015
MW-6R 8/20/2015
MW-7 8/20/2015
MW-3 8/20/2015
Well ID
MW-4 8/20/2015
MW-2 8/20/2015
MW-1 8/20/2015
pH Turbidity
(NTUs)
Dissolved
Oxygen
(mg/L)
Temperature
(C°)
Specific
Conductivity
(µS/cm3)
Dissolved
Oxygen (%)ORP
Ta
b
l
e
3
Hi
s
t
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G
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En
f
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C
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MW
-
1
Un
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2L
St
a
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d
6/
8
/
2
0
0
6
3
/
1
5
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7
4
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2
9
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2
0
1
0
1
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1
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1
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1
2
2
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2
8
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2
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1
3
Me
t
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s
Ar
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/
L
0.
0
1
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<
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1
9
0
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An
t
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/
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Ca
d
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/
L
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Ch
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0.
0
2
6
2
<0
.
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A
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(
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s
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Ch
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b
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3
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s
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21
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C
a
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MW
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r
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8
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3
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5
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4
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2
9
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2
0
1
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0
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1
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2
2
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t
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0
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d
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1
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mg
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0
1
0
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0
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0
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n
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1
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p
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o
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1
9
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Bl
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C
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s
(
.
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d
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c
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m
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d
.
Ta
b
l
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3
Hi
s
t
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c
a
l
G
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d
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A
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s
Ol
d
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F
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21
1
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4
H
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3
0
1
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h
En
f
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d
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N
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C
a
r
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l
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a
MW
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4
(C
o
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t
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d
)
Un
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t
s
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St
a
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d
a
r
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0
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2
0
1
3
8
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1
3
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2
0
1
3
8
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1
1
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2
0
1
4
8
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2
0
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2
0
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5
Me
t
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mg
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L
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0
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0
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0
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3
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1
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0
1
2
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t
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o
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mg
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L
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.
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.
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r
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l
l
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m
mg
/
L
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.
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
..
.
.
Ch
r
o
m
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m
mg
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L
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0
1
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0
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0
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0
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5
0
Co
p
p
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r
mg
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L
1.
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.
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Le
a
d
mg
/
L
0.
0
1
5
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.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
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.
.
Ni
c
k
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l
mg
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L
0.1.
.
.
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Se
l
e
n
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u
m
mg
/
L
0.
0
5
..
.
.
Si
l
v
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r
mg
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L
0.
0
1
7
5
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.
.
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a
l
l
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m
mg
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L
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.
.
.
.
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n
c
mg
/
L
1.
0
5
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.
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n
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c
s
Am
m
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L
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L
0.
7
0
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9
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0
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5
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5
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5
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o
s
p
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o
r
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s
mg
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L
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N
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L
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E
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A
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l
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t
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c
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l
R
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l
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s
(
m
g
/
L
)
Hi
s
t
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r
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c
a
l
G
r
o
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n
d
w
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A
n
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l
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s
MW
-
4
Ar
s
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c
Ch
r
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m
Bo
r
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Ta
b
l
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3
Hi
s
t
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r
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c
a
l
G
r
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n
d
w
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A
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21
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4
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En
f
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d
,
N
o
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C
a
r
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l
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n
a
MW
-
6
/
M
W
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6
R
Un
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t
s
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St
a
n
d
a
r
d
3/
1
5
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2
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4
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1
2
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2
0
0
7
4
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2
9
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2
0
1
0
1
0
/
2
8
/
2
0
1
0
5
/
3
0
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2
0
1
3
8
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1
3
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2
0
1
3
8
/
1
1
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2
0
1
4
8
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2
0
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2
0
1
5
Me
t
a
l
s
Ar
s
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n
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c
mg
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L
0.
0
1
0.
0
8
2
8
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0
1
0
0
0.
0
1
4
3
0
.
0
1
2
5
0.
0
0
6
4
0.
0
3
3
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0
1
0.
0
1
5
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t
i
m
o
n
y
mg
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L
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E
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0
.
0
4
0
0
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0
.
0
1
0
0
..
.
.
.
.
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r
y
l
l
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u
m
mg
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L
NS
E
0
.
0
1
1
8
<
0
.
0
1
0
0
..
.
.
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.
Ca
d
m
i
m
u
m
mg
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L
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0
0
1
7
5
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0
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0
1
0
0
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0
.
0
1
0
0
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.
.
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.
Ch
r
o
m
i
u
m
mg
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L
0.
0
1
0.
3
4
4
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0
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0
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1
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0
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0
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0
0
5
N
A
0
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0
0
7
6
Co
p
p
e
r
mg
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L
1
0
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1
6
5
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0
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0
1
0
0
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a
d
mg
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L
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0
1
5
0.
0
8
9
9
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0
1
0
0
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r
c
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0.
0
0
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0
0
0
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8
5
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.
0
0
0
2
8
5
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Ni
c
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L
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1
0
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0
8
6
6
<
0
.
0
1
0
0
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l
e
n
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mg
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0
5
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0
1
0
0
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0
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0
2
0
0
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l
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0
1
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5
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0
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0
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0
1
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0
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a
l
l
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E
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0
1
0
0
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0
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0
1
0
0
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n
c
mg
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L
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0
5
0
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4
4
1
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0
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0
2
0
0
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s
Am
m
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n
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a
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L
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r
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7
0
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5
7
6
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8
7
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5
5
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6
7
2
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8
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5
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5
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s
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o
r
u
s
mg
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L
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E
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2
.
8
4
..
.
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TK
N
mg
/
L
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9
.
.
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E
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t
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a
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k
C
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l
s
(
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n
d
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c
o
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p
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d
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2
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3
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4
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5
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6
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7
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8
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9
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y
t
i
c
a
l
R
e
s
u
l
t
s
(
m
g
/
L
)
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
MW
-
6
Ar
s
e
n
i
c
Ch
r
o
m
i
u
m
Bo
r
o
n
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
MW
-
7
Un
i
t
s
2L
St
a
n
d
a
r
d
3/
1
5
/
2
0
0
7
4
/
1
2
/
2
0
0
7
4
/
2
9
/
2
0
1
0
1
0
/
2
8
/
2
0
1
0
5
/
1
2
/
2
0
1
1
1
1
/
8
/
2
0
1
1
2
/
2
8
/
2
0
1
3
5
/
3
0
/
2
0
1
3
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
0.
1
5
5
0
.
3
5
7
0
.
1
5
7
0
.
2
1
2
0
.
2
0
4
0
.
2
7
1
0
.
0
8
3
0
.
3
1
9
An
t
i
m
o
n
y
mg
/
L
NS
E
<
0
.
0
4
0
0
<
0
.
0
1
0
0
..
.
.
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NS
E
<
0
.
0
1
0
0
<
0
.
0
1
0
0
..
.
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
<
0
.
0
1
0
0
<
0
.
0
1
0
0
..
.
.
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
0.
1
7
6
<0
.
0
1
0
0
<
0
.
0
1
0
0
0.
0
1
1
5
<0
.
0
1
0
0
0.
0
1
0
2
<0
.
0
0
5
0
.
0
0
7
5
5
Co
p
p
e
r
mg
/
L
1
0
.
2
0
1
0
.
0
1
1
6
..
.
.
.
.
Le
a
d
mg
/
L
0.
0
1
5
0.
1
1
3
<0
.
0
1
0
0
..
.
.
.
.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
0.
0
0
2
4
7
<0
.
0
0
2
8
5
..
.
.
.
.
Ni
c
k
e
l
mg
/
L
0.
1
0
.
0
2
3
6
<
0
.
0
1
0
0
..
.
.
.
.
Se
l
e
n
i
u
m
mg
/
L
0.
0
5
<
0
.
0
1
0
0
<
0
.
0
2
0
0
..
.
.
.
.
Si
l
v
e
r
mg
/
L
0.
0
1
7
5
<
0
.
0
1
0
0
<
0
.
0
1
0
0
..
.
.
.
.
Th
a
l
l
i
u
m
mg
/
L
NS
E
<
0
.
0
1
0
0
<
0
.
0
1
0
0
..
.
.
.
.
Zi
n
c
mg
/
L
1.
0
5
0
.
2
9
2
<
0
.
0
2
0
0
..
.
.
.
.
In
o
r
g
a
n
i
c
s
Am
m
o
n
i
a
mg
/
L
NSE
.
1
.
4
.
.
.
.
.
.
Bo
r
o
n
mg
/
L
0.
7
0
.
2
9
2
0
.
3
3
1
0
.
2
2
1
0
.
2
3
1
0
.
2
3
1
0
.
2
2
3
<
0
.
5
0
.
1
5
5
Ph
o
s
p
h
o
r
u
s
mg
/
L
NS
E
8
.
8
2
1
.
8
3
..
.
.
.
.
TK
N
mg
/
L
NS
E
2
0
.
1
7
.
8
..
.
.
.
.
NS
E
-
N
o
S
t
a
n
d
a
r
d
E
s
t
a
b
l
i
s
h
e
d
BD
L
-
B
e
l
o
w
D
e
t
e
c
t
i
o
n
L
i
m
i
t
s
BR
L
-
B
e
l
o
w
R
e
p
o
r
t
i
n
g
L
i
m
i
t
Bo
l
d
a
n
d
I
t
a
l
i
c
s
f
o
n
t
d
e
n
o
t
e
s
G
W
S
t
a
n
d
a
r
d
e
x
c
e
e
d
a
n
c
e
.
Bl
a
n
k
C
e
l
l
s
(
.
)
i
n
d
i
c
a
t
e
c
o
m
p
o
u
n
d
n
o
t
a
n
a
l
y
z
e
d
.
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
MW
-
7
(C
o
n
t
i
n
u
e
d
)
Un
i
t
s
2L
St
a
n
d
a
r
d
8/
1
3
/
2
0
1
3
8
/
1
1
/
2
0
1
4
8
/
2
0
/
2
0
1
5
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
0.
4
2
0
.
3
0
0
.
3
5
An
t
i
m
o
n
y
mg
/
L
NS
E
.
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NS
E
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
.
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
0
.
0
0
5
6
0
.
0
0
9
5
0
.
0
0
9
1
Co
p
p
e
r
mg
/
L
1.
.
.
Le
a
d
mg
/
L
0.
0
1
5
.
.
.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
.
.
.
Ni
c
k
e
l
mg
/
L
0.
1
.
.
.
Se
l
e
n
i
u
m
mg
/
L
0.
0
5
.
.
.
Si
l
v
e
r
mg
/
L
0.
0
1
7
5
.
.
.
Th
a
l
l
i
u
m
mg
/
L
NS
E
.
.
.
Zi
n
c
mg
/
L
1.
0
5
.
.
.
In
o
r
g
a
n
i
c
s
Am
m
o
n
i
a
mg
/
L
NS
E
.
.
.
Bo
r
o
n
mg
/
L
0.
7
<
0
.
5
N
A
<
0
.
5
Ph
o
s
p
h
o
r
u
s
mg
/
L
NS
E
.
.
.
TK
N
mg
/
L
NS
E
.
NS
E
-
N
o
S
t
a
n
d
a
r
d
E
s
t
a
b
l
i
s
h
e
d
BD
L
-
B
e
l
o
w
D
e
t
e
c
t
i
o
n
L
i
m
i
t
s
BR
L
-
B
e
l
o
w
R
e
p
o
r
t
i
n
g
L
i
m
i
t
Bo
l
d
a
n
d
I
t
a
l
i
c
s
f
o
n
t
d
e
n
o
t
e
s
G
W
S
t
a
n
d
a
r
d
e
x
c
e
e
d
a
n
c
e
.
Bl
a
n
k
C
e
l
l
s
(
.
)
i
n
d
i
c
a
t
e
c
o
m
p
o
u
n
d
n
o
t
a
n
a
l
y
z
e
d
.
0.
0
0
0
0
0.
0
5
0
0
0.
1
0
0
0
0.
1
5
0
0
0.
2
0
0
0
0.
2
5
0
0
0.
3
0
0
0
0.
3
5
0
0
0.
4
0
0
0
0.
4
5
0
0
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
(
m
g
/
L
)
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
MW
-
7
Ar
s
e
n
i
c
Ch
r
o
m
i
u
m
Bo
r
o
n
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
MW
-
1
2
Un
i
t
s
2L
St
a
n
d
a
r
d
9/
3
0
/
2
0
0
8
1
0
/
2
7
/
2
0
0
8
4
/
2
9
/
2
0
1
0
1
0
/
2
8
/
2
0
1
0
5
/
1
2
/
2
0
1
1
1
1
/
8
/
2
0
1
1
2
/
2
8
/
2
0
1
3
5
/
3
0
/
2
0
1
3
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
0.
7
6
0
.
4
4
0
.
2
0
5
0
.
0
9
2
4
0
.
2
7
1
<0
.
0
1
0
0
0.
2
2
0
.
2
8
4
An
t
i
m
o
n
y
mg
/
L
NSE
.
.
.
.
.
.
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NSE
.
.
.
.
.
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
..
.
.
.
.
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
0.
2
0
.
0
2
4
0
.
0
3
5
3
0
.
0
2
7
7
0
.
0
1
1
4
<0
.
0
1
0
0
<
0
.
0
0
5
0
.
0
0
2
2
3
Co
p
p
e
r
mg
/
L
1.
.
.
.
.
.
.
.
Le
a
d
mg
/
L
0.
0
1
5
..
.
.
.
.
.
.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
..
.
.
.
.
.
.
Ni
c
k
e
l
mg
/
L
0.1.
.
.
.
.
.
.
.
Se
l
e
n
i
u
m
mg
/
L
0.
0
5
..
.
.
.
.
.
.
Si
l
v
e
r
mg
/
L
0.
0
1
7
5
..
.
.
.
.
.
.
Th
a
l
l
i
u
m
mg
/
L
NSE
.
.
.
.
.
.
.
.
Zi
n
c
mg
/
L
1.
0
5
..
.
.
.
.
.
.
In
o
r
g
a
n
i
c
s
Am
m
o
n
i
a
mg
/
L
NSE
.
.
.
.
.
.
.
.
Bo
r
o
n
mg
/
L
0.
7
0.
7
5
BR
L
0
.
0
2
3
4
0
.
6
8
0
0
.
3
4
6
0
.
4
9
6
<
0
.
5
0
.
3
2
4
Ph
o
s
p
h
o
r
u
s
mg
/
L
NSE
.
.
.
.
.
.
.
.
TK
N
mg
/
L
NSE
.
.
.
.
.
.
.
.
NS
E
-
N
o
S
t
a
n
d
a
r
d
E
s
t
a
b
l
i
s
h
e
d
BD
L
-
B
e
l
o
w
D
e
t
e
c
t
i
o
n
L
i
m
i
t
s
BR
L
-
B
e
l
o
w
R
e
p
o
r
t
i
n
g
L
i
m
i
t
Bo
l
d
a
n
d
I
t
a
l
i
c
s
f
o
n
t
d
e
n
o
t
e
s
G
W
S
t
a
n
d
a
r
d
e
x
c
e
e
d
a
n
c
e
.
Bl
a
n
k
C
e
l
l
s
(
.
)
i
n
d
i
c
a
t
e
c
o
m
p
o
u
n
d
n
o
t
a
n
a
l
y
z
e
d
.
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
MW
-
1
2
(C
o
n
t
i
n
u
e
d
)
Un
i
t
s
2L
St
a
n
d
a
r
d
8/
1
3
/
2
0
1
3
8
/
1
1
/
2
0
1
4
8
/
2
0
/
2
0
1
5
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
0.
3
5
0
.
6
0
0
.
6
5
An
t
i
m
o
n
y
mg
/
L
NS
E
.
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NS
E
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
.
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
<
0
.
0
0
5
0
0.
0
2
2
0
.
0
2
8
Co
p
p
e
r
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8
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21
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4
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En
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C
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MW
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n
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7
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4
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L
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0
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6
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5
9
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0
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3
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4
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8
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5
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t
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r
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l
l
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Ca
d
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m
mg
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L
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0
0
1
7
5
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1
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5
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p
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a
d
mg
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L
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0
1
5
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c
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0
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c
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l
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L
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0
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L
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0
1
7
5
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a
l
l
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L
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mg
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L
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0
5
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7
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8
9
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9
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3
8
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1
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3
4
1
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L
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.
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3
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F
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21
1
4
4
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3
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1
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En
f
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N
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C
a
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a
MW
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3
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St
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a
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8
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5
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3
0
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2
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3
8
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3
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2
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4
8
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3
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4
8
4
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8
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5
6
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1
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t
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mg
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L
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l
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mg
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L
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d
m
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m
mg
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L
0.
0
0
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5
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r
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0
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c
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mg
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0.
0
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c
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.
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mg
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0
5
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r
mg
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L
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0
1
7
5
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l
l
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L
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A
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s
(
m
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)
Hi
s
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c
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G
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MW
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3
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Ch
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m
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Ta
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Hi
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c
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F
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21
1
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4
H
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3
0
1
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En
f
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h
C
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MW
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4
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t
s
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St
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d
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d
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3
0
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2
0
0
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4
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2
9
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2
0
1
0
1
0
/
2
8
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2
0
1
0
5
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1
2
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2
0
1
1
1
1
/
8
/
2
0
1
1
2
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2
8
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2
0
1
3
5
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3
0
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2
0
1
3
8
/
1
3
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2
0
1
3
Me
t
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l
s
Ar
s
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c
mg
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L
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0
1
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0
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0
1
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0
1
8
4
0
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0
1
5
7
0
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1
6
7
0
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0
4
7
0
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0
1
3
6
0
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2
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t
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m
o
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y
mg
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L
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r
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l
l
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m
mg
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L
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.
.
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d
m
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m
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m
mg
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L
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0
0
1
7
5
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.
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m
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mg
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L
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0
1
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0
1
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0
0
5
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p
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r
mg
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L
1.
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a
d
mg
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L
0.
0
1
5
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r
c
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mg
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L
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0
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c
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l
mg
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L
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.
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l
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n
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m
mg
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L
0.
0
5
..
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mg
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L
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0
1
7
5
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l
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L
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L
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0
5
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7
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L
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L
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o
t
a
n
a
l
y
z
e
d
.
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
MW
-
1
4
(c
o
n
t
.
)
Un
i
t
s
2L
St
a
n
d
a
r
d
8/
1
1
/
2
0
1
4
8
/
2
0
/
2
0
1
5
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
0.
0
7
1
0
.
2
4
An
t
i
m
o
n
y
mg
/
L
NS
E
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NS
E
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
0
.
0
0
7
4
0.
0
3
1
Co
p
p
e
r
mg
/
L
1.
.
Le
a
d
mg
/
L
0.
0
1
5
.
.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
.
.
Ni
c
k
e
l
mg
/
L
0.
1
.
.
Se
l
e
n
i
u
m
mg
/
L
0.
0
5
.
.
Si
l
v
e
r
mg
/
L
0.
0
1
7
5
.
.
Th
a
l
l
i
u
m
mg
/
L
NS
E
.
.
Zi
n
c
mg
/
L
1.
0
5
.
.
In
o
r
g
a
n
i
c
s
Am
m
o
n
i
a
mg
/
L
NS
E
.
.
Bo
r
o
n
mg
/
L
0.
7
N
A
0.
8
2
Ph
o
s
p
h
o
r
u
s
mg
/
L
NS
E
.
.
TK
N
mg
/
L
NS
E
.
.
NS
E
-
N
o
S
t
a
n
d
a
r
d
E
s
t
a
b
l
i
s
h
e
d
BD
L
-
B
e
l
o
w
D
e
t
e
c
t
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o
n
L
i
m
i
t
s
BR
L
-
B
e
l
o
w
R
e
p
o
r
t
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g
L
i
m
i
t
Bo
l
d
a
n
d
I
t
a
l
i
c
s
f
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t
d
e
n
o
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s
G
W
S
t
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n
d
a
r
d
e
x
c
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d
a
n
c
e
.
Bl
a
n
k
C
e
l
l
s
(
.
)
i
n
d
i
c
a
t
e
c
o
m
p
o
u
n
d
n
o
t
a
n
a
l
y
z
e
d
.
0.
0
0
0
0
0.
1
0
0
0
0.
2
0
0
0
0.
3
0
0
0
0.
4
0
0
0
0.
5
0
0
0
0.
6
0
0
0
0.
7
0
0
0
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
(
m
g
/
L
)
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
MW
-
1
4
Ar
s
e
n
i
c
Ch
r
o
m
i
u
m
Bo
r
o
n
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
MW
-
1
5
Un
i
t
s
2L
St
a
n
d
a
r
d
5/
3
0
/
2
0
1
3
8
/
1
3
/
2
0
1
3
8
/
1
1
/
2
0
1
4
8
/
2
0
/
2
0
1
5
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
<
0
.
0
1
<
0
.
0
1
<
0
.
0
1
<
0
.
0
1
An
t
i
m
o
n
y
mg
/
L
NSE
.
.
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NSE
.
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
..
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
<
0
.
0
0
5
<
0
.
0
0
5
<
0
.
0
0
5
<
0
.
0
0
5
Co
p
p
e
r
mg
/
L
1.
.
.
.
Le
a
d
mg
/
L
0.
0
1
5
..
.
.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
..
.
.
Ni
c
k
e
l
mg
/
L
0.1.
.
.
.
Se
l
e
n
i
u
m
mg
/
L
0.
0
5
..
.
.
Si
l
v
e
r
mg
/
L
0.
0
1
7
5
..
.
.
Th
a
l
l
i
u
m
mg
/
L
NSE
.
.
.
.
Zi
n
c
mg
/
L
1.
0
5
..
.
.
In
o
r
g
a
n
i
c
s
Am
m
o
n
i
a
mg
/
L
NSE
.
.
.
.
Bo
r
o
n
mg
/
L
0.
7
0
.
0
7
3
6
<
0
.
5
<
0
.
5
<
0
.
5
Ph
o
s
p
h
o
r
u
s
mg
/
L
NSE
.
.
.
.
TK
N
mg
/
L
NS
E
.
.
NS
E
-
N
o
S
t
a
n
d
a
r
d
E
s
t
a
b
l
i
s
h
e
d
BD
L
-
B
e
l
o
w
D
e
t
e
c
t
i
o
n
L
i
m
i
t
s
BR
L
-
B
e
l
o
w
R
e
p
o
r
t
i
n
g
L
i
m
i
t
Bo
l
d
a
n
d
I
t
a
l
i
c
s
f
o
n
t
d
e
n
o
t
e
s
G
W
S
t
a
n
d
a
r
d
e
x
c
e
e
d
a
n
c
e
.
Bl
a
n
k
C
e
l
l
s
(
.
)
i
n
d
i
c
a
t
e
c
o
m
p
o
u
n
d
n
o
t
a
n
a
l
y
z
e
d
.
0.
0
0
0
0
0.
0
1
0
0
0.
0
2
0
0
0.
0
3
0
0
0.
0
4
0
0
0.
0
5
0
0
0.
0
6
0
0
0.
0
7
0
0
0.
0
8
0
0
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
(
m
g
/
L
)
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
MW
-
1
5
Ar
s
e
n
i
c
Ch
r
o
m
i
u
m
Bo
r
o
n
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
DW
-
1
Un
i
t
s
2L
St
a
n
d
a
r
d
5/
7
/
2
0
0
7
4
/
2
9
/
2
0
1
0
1
0
/
2
8
/
2
0
1
0
5
/
1
2
/
2
0
1
1
1
1
/
8
/
2
0
1
1
1
1
/
7
/
2
0
1
2
2
/
2
8
/
2
0
1
3
5
/
3
0
/
2
0
1
3
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
<
0
.
0
1
0
0
..
.
.
.
0.
0
1
2
.
An
t
i
m
o
n
y
mg
/
L
NS
E
<
0
.
0
4
0
0
..
.
.
.
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NS
E
<
0
.
0
1
0
0
..
.
.
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
<
0
.
0
1
0
0
..
.
.
.
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
<
0
.
0
1
0
0
..
.
.
.
.
.
Co
p
p
e
r
mg
/
L
1
<
0
.
0
1
0
0
..
.
.
.
.
.
Le
a
d
mg
/
L
0.
0
1
5
<
0
.
0
1
0
0
..
.
.
.
.
.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
<
0
.
0
0
0
2
8
5
..
.
.
.
.
.
Ni
c
k
e
l
mg
/
L
0.
1
<
0
.
0
1
0
0
..
.
.
.
.
.
Se
l
e
n
i
u
m
mg
/
L
0.
0
5
<
0
.
0
2
0
0
..
.
.
.
.
.
Si
l
v
e
r
mg
/
L
0.
0
1
7
5
<
0
.
0
1
0
0
..
.
.
.
.
.
Th
a
l
l
i
u
m
mg
/
L
NS
E
<
0
.
0
1
0
0
..
.
.
.
.
.
Zi
n
c
mg
/
L
1.
0
5
<
0
.
0
2
0
0
..
.
.
.
.
.
In
o
r
g
a
n
i
c
s
Am
m
o
n
i
a
mg
/
L
NSE0
.
2
.
.
.
.
.
.
.
Bo
r
o
n
mg
/
L
0.
7
0
.
0
1
8
4
0
.
0
1
1
0
.
0
1
6
1
0
.
0
1
6
4
<
0
.
0
1
0
0
0
.
0
2
6
3
<
0
.
5
0
.
3
5
Ph
o
s
p
h
o
r
u
s
mg
/
L
NS
E
0
.
1
3
..
.
.
.
.
.
TK
N
mg
/
L
NSE1
.
5
.
.
.
.
.
.
.
NS
E
-
N
o
S
t
a
n
d
a
r
d
E
s
t
a
b
l
i
s
h
e
d
BD
L
-
B
e
l
o
w
D
e
t
e
c
t
i
o
n
L
i
m
i
t
s
BR
L
-
B
e
l
o
w
R
e
p
o
r
t
i
n
g
L
i
m
i
t
Bo
l
d
a
n
d
I
t
a
l
i
c
s
f
o
n
t
d
e
n
o
t
e
s
G
W
S
t
a
n
d
a
r
d
e
x
c
e
e
d
a
n
c
e
.
Bl
a
n
k
C
e
l
l
s
(
.
)
i
n
d
i
c
a
t
e
c
o
m
p
o
u
n
d
n
o
t
a
n
a
l
y
z
e
d
.
0.
0
0
0
0
0.
0
5
0
0
0.
1
0
0
0
0.
1
5
0
0
0.
2
0
0
0
0.
2
5
0
0
0.
3
0
0
0
0.
3
5
0
0
0.
4
0
0
0
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
(
m
g
/
L
)
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
DW
-
1
Ar
s
e
n
i
c
Ch
r
o
m
i
u
m
Bo
r
o
n
Ta
b
l
e
3
Hi
s
t
o
r
i
c
a
l
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
R
e
s
u
l
t
s
Ol
d
Q
F
P
S
i
t
e
21
1
4
4
H
i
g
h
w
a
y
3
0
1
S
o
u
t
h
En
f
i
e
l
d
,
N
o
r
t
h
C
a
r
o
l
i
n
a
DW
-
1
(C
o
n
t
i
n
u
e
d
)
Un
i
t
s
2L
St
a
n
d
a
r
d
8/
1
3
/
2
0
1
3
8
/
1
1
/
2
0
1
4
8
/
2
0
/
2
0
1
5
Me
t
a
l
s
Ar
s
e
n
i
c
mg
/
L
0.
0
1
<
0
.
0
1
<
0
.
0
1
<
0
.
0
1
An
t
i
m
o
n
y
mg
/
L
NS
E
.
.
.
Be
r
y
l
l
i
u
m
mg
/
L
NS
E
.
.
.
Ca
d
m
i
m
u
m
mg
/
L
0.
0
0
1
7
5
.
.
.
Ch
r
o
m
i
u
m
mg
/
L
0.
0
1
<
0
.
0
0
5
<
0
.
0
0
5
<
0
.
0
0
5
Co
p
p
e
r
mg
/
L
1.
.
.
Le
a
d
mg
/
L
0.
0
1
5
.
.
.
Me
r
c
u
r
y
mg
/
L
0.
0
0
1
0
5
.
.
.
Ni
c
k
e
l
mg
/
L
0.
1
.
.
.
Se
l
e
n
i
u
m
mg
/
L
0.
0
5
.
.
.
Si
l
v
e
r
mg
/
L
0.
0
1
7
5
.
.
.
Th
a
l
l
i
u
m
mg
/
L
NS
E
.
.
.
Zi
n
c
mg
/
L
1.
0
5
.
.
.
In
o
r
g
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Appendix A
Page 1 of 19
Page 2 of 19
Page 3 of 19
Page 4 of 19
Page 5 of 19
Page 6 of 19
Page 7 of 19
Page 8 of 19
Page 9 of 19
Page 10 of 19
Page 11 of 19
Page 12 of 19
Page 13 of 19
Page 14 of 19
Page 15 of 19
Page 16 of 19
Page 17 of 19
Page 18 of 19
. ·.·,:. R I S M I FulH3e
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MENT (.0306(8)(2))
c information conmlned in this
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in the fo .1 of~_. was duly sworn. or affirmed, and de-0Jdrod th , to tl1e best of}1is or her
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WITNE: ~ my hand Md officlal sc:al this ~ay o(.JJ:f.~ ···-'
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DC?u ent Cei·tifi tion Form No. DC -l
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