5409_LenoirCounty_GWMR_DIN27916_20160712

Lenoir County Subtitle D Lined MSWLF
LaGrange, North Carolina
July 2016
Permit Number: 54-09
Prepared for
Municipal Engineering Services Company, P.A.Garner and Boone , North Carolina
MESCO Project Number: G16029.0
Semi-Annual Water Quality Monitoring Report
P.O. Box 97
Garner, NC 27529
License No. C-0281

TABLE OF CONTENTS
SECTION
Introduction Page 1
Background Page 1
Sampling Procedure Page 2
Field Parameter Data Page 2
Laboratory Results Page 2
Quality Control Samples Page 2
Groundwater Samples Page 2
Surfacewater Samples Page 2
Leachate Samples Page 2
Groundwater and Surfacewater Characterization Page 2
Findings Page 2
Closing Page 3
TABLES
Groundwater Monitoring Well Construction Table Table 1
Sampling and Analysis Summary Table 2
Detections in Water Samples above SWSL, GWP, 2L, 2B or MCL (Appendix I) Table 3
Detections in Leachate Samples above SWSL, GWP, 2L, 2B or MCL Table 4
Hydrogeologic Properties at Monitoring Well Locations Table 5
FIGURES
Topographic Map with Site Location Figure 1
Potentiometric Map of Uppermost Aquifer Figure 2
APPENDICIES
Laboratory and Field Analysis Reports and Chains of Custody Appendix A
December 15, 2016
Ms. Jaclynne Drummond
Solid Waste Section (SWS)
NC Department of Environmental Quality (NCDEQ)
2090 US Highway 70 Swannanoa, NC 28778
Re: Semi-Annual Water Quality Monitoring Report
Lenoir County Subtitle D Lined Landfill, Phase 1
Permit No. 54-09 MESCO Project No. G16029.0
Event Date(s): July 12, 2016

Dear Ms. Drummond:
Introduction
On behalf of Lenoir County, Municipal Engineering Services Company, P.A. (MESCO) is pleased to present this
Semi-Annual Water Quality Report for the an event performed at the Lenoir County Subtitle D Lined Municipal
Solid Waste Landfill (MSWLF). NCDENR Solid Waste Rules 15A NCAC 13B.1632 and permit to operate
requires that Lenoir County provide this report to the SWS on a semi-annual basis. This report documents the
quality of the groundwater, surface waters and leachate during this monitoring event performed on July 12, 2016.
Laboratory analytical results indicate that constituents continue to not be detected in excess of any applicable water
quality Standard.
Background
The Lenoir County Subtitle D lined MSWLF, permit #54-09, is located at 2949 Hodges Farm Road, LaGrange,
North Carolina. The site location topographic map is depicted in the attached Figure 1. The lined MSWLF is
currently not accepting waste rather being transferred to another out of county MSWLF.
Water quality at this facility has been monitored at least semi-annually since prior to operation in 2003 with all
historical analytical data available for trend comparison.
As specified within 15A NCAC 13B.1632(j), the SWS Environmental Monitoring Report Form and SWS issued
memorandums this report contains sampling procedures, field and laboratory results, groundwater and surface water
characterization. Well construction summary table, sampling and analysis summary table, detections compared to
Standards tables, hydrogeologic properties table, potentiometric map, field parameters, laboratory analytical reports
with quality assurance/quality control data and chains-of-custody (C-O-C) are also included in this report.

Sampling Procedure
Environment 1 (E1) of Greenville, NC reportedly performed this sampling event utilizing portable monitoring
methodology in accordance with the approved Sampling & Analysis Plan (SAP) contained in the Lenoir County
Landfill, Phase 1 Design Hydrogeologic Study dated August 19, 2002. E1 reportedly collected water samples from
four downgradient groundwater monitoring wells (MW-14 through MW-17), two hydraulically upgradient
background wells (MW-13 and MW-18), and the the leachate lagoon (LAGOON). Quality control measures
instituted during this event included submittal and analysis of an equipment blank (EB), field blank (FB) and trip
blank (TB). Additional static water level readings were recorded from eleven supplementary piezometers (P-3A,
P1-4, P1-14, P-14, P-17, P-22, P2-4, P2-9, P2-10, MW-19S and MW-19D) to improve potentiometric map coverage.
The lone designated surface water sample point SW-3 was reported to be dry. Monitoring locations are shown in
Figure 2. A summary detailing the construction of the water monitoring wells is presented on Table 1.
Field Parameter Data
E1 reported the field parameters (pH, static water levels, specific conductance, temperature and turbidity) in the
laboratory analysis report (Appendix A).
Laboratory Results
Samples collected from monitoring wells contained in the SAP and blanks (EB,FB) were analyzed for the VOC and
total metal constituents listed in Appendix I of 40 CFR Part 258. The lined leachate lagoon (LAGOON) samples
were tested for the SWS required leachate specific parameters (Appendix I VOCs and metals, nitrate, phosphorus,
chemical oxygen demand, biological oxygen demand, pH, and sulfate) plus constituents required by the City of
Kinston WWTP. A sampling and analysis table summarizing the locations, target parameters and laboratory
methods is presented as Table 2. E1 documentation indicates samples were transported under C-O-C protocols and
analyzed within the specified hold times for each method.
Water samples were analyzed to the laboratory-established Method Detection Limits (MDL), which are at or below
the current Solid Waste Section Limits (SWSL). Table 3 summarizes constituents detected in groundwater samples
that attain or were above the current SWSL, Groundwater Protection Standards (GWP), North Carolina
Groundwater Standards (2L) and Maximum Contaminant Levels (MCL) also known as “Federal Primary Drinking
Water Standards”. Laboratory results and COC are presented in Appendix A.
Quality Control Samples
Three out of sixteen total metals were detected in low “j-qualified” concentrations in the blanks (EB and FB).
Although the field and/or laboratory induced artifact contamination was identified it is unlikely the data set for the
lined landfill has been influenced by false positives or high bias.
Groundwater Samples
Constituents continue to be absent in any groundwater sample in concentrations exceeding the 2L, GWP or MCL
Standards.
Surfacewater Samples
Surfacewater monitoring point SW-3 was dry; thus, no surface water information was reported for this event.
2
Figures
Topographic Map with Site Location
Lenoir County Landfill Facility
FIGURE 1
QUADRANGLE LEGEND
N
2949 Hodges Farm Rd (SR1524)
LaGrange, NC 28501
Lat:35-17-07.4269
Long:-77-42-32.7453
Northing:561295.59
Easting:2385220.32
SW-3
UNLINEDC&D
MSWLF
SUBTITLE DLINEDMSWLF
Tables
Lenoir County Subtitle D Lined MSWLF Page 1 of 1
Table 1
Groundwater Monitoring Well Construction Table
July 12, 2016
Latitude Longitude
(inches)(ft)
MW-13 9/3/03 2 29.4 14.40 15 Silty Sand 107.81 105.79 84.22 23.59 N35° 17' 23.50"W77° 42' 28.56"
MW-14 9/3/03 2 21 6 15 Silty Sand 74.81 72.80 61.99 12.82 N35° 17' 28.11"W77° 42' 10.92"
MW-15 8/22/01 2 15.13 5.13 10 Silty Sand 71.64 68.69 64.24 7.40 N35° 17' 24.53"W77° 42' 10.28"
MW-16 9/2/03 2 21 6 15 Silty Sand 76.36 73.95 68.52 7.84 N35° 17' 21.53"W77° 42' 11.35"
MW-17 9/3/03 2 28 13 15 Silty Sand 101.06 99.06 79.23 21.83 N35° 17' 13.30"W77° 42' 22.33"
MW-18 4/24/04 2 30.85 15.85 15 Silty Clayey Sand 106.74 103.74 84.08 22.66 N35° 17' 09.44"W77° 42' 27.07"
NOTE:
Monitoring Well Date Installed
Well
Diameter
Total
Well Depth
Top of
Screen Depth
Screen
Length Geology of Screened Interval
Top of Casing
Elevation
Ground
Elevation
Groundwater
Elevation
Depth to
Water
(ft bgs)(ft bgs)(ft amsl)(ft amsl)(ft amsl)(ft btoc)
bgs = below ground surface
amsl= above mean sea level
btoc = below top of casing (PVC well casing)
Lenoir County Subtitle D Lined MSWLF Page 1 of 1
Table 2
Sampling and Analysis Summary
July 12, 2016
App. I App II Field Parameter
T o t a l M e t a l s
M e r c u r y , T o t a l
S t a t i c D e p t h t o W a t e r
T e m p e r a t u r e
C o n d u c t i v i t y
p H T u r b i d i t y
S u l f a t e
p H P h o s p h o r u s
B O D , 5 d a y
C O D
N i t r a t e
L a b E P A 8 2 6 0 B
L a b E P A 2 0 0 .8
L a b E P A 8 2 6 0 B
L a b 2 4 5 .1 R 3 -9 4
S M 2 5 5 0 B
S M 2 5 1 0 B
S M 4 5 0 0 H B
S M 2 1 3 0 -B
S M 4 2 6 C
L a b S M 4 5 0 0 H B
L a b E P A 3 6 5 .4
L a b S M 5 2 1 0 B
L a b H A C H 8 0 0 0
L a b E P A 3 5 3 .2
MW-13 x x x x x x x
MW-14 x x x x x x x
MW-15 x x x x x x x
MW-16 x x x x x x x
MW-17 x x x x x x x
MW-18 x x x x x x x
SW-3 Not sampled since dry which is typical
LAGOON x x x x x x x x x x x x
EB x x x
FB x x x
TB x
App I & II = Lists from current 40 CFR 258
Leachate
V O C s
V O C s
Lenoir County Subtitle D Lined MSWLF Page 1 of 1
Table 3
July 12, 2016
Sample Date Result Unit
MW-15 Barium, Total 7/12/16 304 0.02 100 700 20000
MW-17 Barium, Total 7/12/16 175 0.02 100 700 20000
A definitive source of the detection was not determined as part of this report. Preliminary cause only listed pursuant to instructions
BOLD = Concentration > 2L, 2B, GWP or or MCL Standard
Detections in Water Samples above SWSL, 2L, 2B, GWP or MCL (Appendix I)
Sample
ID Parameter Name 1 MDL 2 SWSL 3 2L 4 2B 5 GWP 6 MCL 7 Preliminary
Cause 8
ug/l
ug/l
1 Table contains constituents detected at or above SWSL, 2L, 2B, GWP or MCL
2 MDL = Method Detection Limit
3 SWSL = Solid Waste Section Reporting Limit
4 2L = North Carolina 15A NCAC 2L Groundwater Quality Standard
5 2B = North Carolina 15 NCAC 2B Surface Water Quality Standard for this Specific Stream Classification
6 GWP = Groundwater Protection Standard
7 MCL = Primary Drinking Water Standard (not currently applicable for regulatory comparisons)
8 Preliminary Cause = Refers to a preliminary analysis of the cause and/or source of a detection over the respective 2L/2B Standard.
Lenoir County Subtitle D Lined MSWLF Page 1 of 1
Table 4
July 12, 2016
Result Unit
LAGOON Barium, Total 7/12/16 107 0.02 100 700 200000 1300
BOLD = Concentration > 2L, 2B, GWP or or MCL Standard
Detections in Leachate Samples above SWSL, 2L, 2B, GWP or MCL
Sample
ID Parameter Name 1 Sample
Date MDL 2 SWSL 3 2L 4 2B 5 GWP 6 MCL 7
ug/l
1 Table contains only constituents detected above SWSL, GWP, 2L, or 2B
2 MDL = Method Detection Limit
3 SWSL = Solid Waste Section Reporting Limit
4 2L = North Carolina 15A NCAC 2L Groundwater Qualtity Standard
5 2B = North Carolina 15 NCAC 2B Surface Water Quality Standard for closest specific stream classification
6 GWP = Groundwater Protection Standard (Current as of Sampling Event)
7 MCL = Primary Drinking Water Standard (not currently applicable for regulatory comparisons)
Lenoir County Subtitle D Lined MSWLF Page 1 of 1
Table 5
July 12, 2016
(cm/sec)(%)(ft/yr)
MW-13 7.69E-05 23 0.013 4 N40E 23.59 84.22 Silty Sand
MW-14 3.38E-03 23 0.020 303 N62E 12.82 61.99 Silty Sand
MW-15 2.89E-03 23 0.015 195 N70E 7.40 64.24 Silty Sand
MW-16 9.72E-04 23 0.040 175 N58E 7.84 68.52 Silty Sand
MW-17 1.13E-03 23 0.012 61 N85E 21.83 79.23 Silty Sand
MW-18 1.25E-04 23 0.012 7 N84E 22.66 84.08 Silty Clayey Sand
Minimum 7.69E-05 23 0.01 4 -7.4 61.99 -
Average 1.43E-03 23 0.02 124 -16.02 73.71 -
Maximum 3.38E-03 23 0.04 303 -23.59 84.22 -
NOTE:1.Hydraulic conductivity (K) values based on slug test results, performed by MESCO in December 2005.
3.Static water levels recorded by Environment 1, Inc. on July 12, 2016.
Linear velocity rate (Q) is defined by modified Darcy's equation:
where
K = hydraulic conductivity
Hydrologic Properties at Monitoring Well Locations
Monitoring
Well
Hydraulic
Conductivity
Effective
Porosity Hydraulic
Gradient
(ft/ft)
Groundwater
Velocity Rate Flow
Direction
Depth To
Water
Water Table
Elevation Screened
Interval Lithology(ft btoc)(ft amsl)
2. Effective Porosity (ne) values obtained from the MESCO Ph. 1 design hydrogeologic report completed in August 2002.
ne = effective porosity
dh = head difference
dl = horizontal distance
dl
dh
n
KQ
e

Appendix A
Laboratory Analysis Report
Field Analysis Report
Chains of Custody