9209_NorthWakeMSWLF_14DayNotification_GWMR_20170920

5400 Glenwood Avenue, Suite 400
Raleigh, North Carolina 27612
tel: [phone]
fax: [phone]

October 23, 2017

Ms. Jaclynne Drummond
North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
2090 U.S. 70 Highway
Swannanoa, North Carolina 28778

Subject: 14-Day Notification of Groundwater Protection Exceedance
September 2017 Semi-Annual Monitoring
North Wake Closed Unlined Landfill
Facility Permit No. 9209-MSWLF-1984

Dear Ms. Drummond:
CDM Smith Inc., on behalf of Wake County (County), is submitting an electronic copy of the 14-day
notification of groundwater exceedance (Notification) for the September 2017 semi-annual sampling
event for the North Wake Closed Unlined Landfill. This letter report provides the signed Notification, a
summary of the groundwater monitoring wells with tabulated laboratory analytical results and
comparisons to the 15A NCAC 02L .0202 (NC 2L) or Groundwater Protection Standards, and a site map
(Figure 1).
The following list indicates the analytes detected above their respective NC 2L or Groundwater
Protection Standards at each sampling location. Estimated or “J” flag detections are also provided and
are identified with an “*” qualifier. A complete summary of all detected and estimated concentrations
from March 2011 to September 2017 is provided in Table 1. Laboratory analytical data reports will be
provided with the semi-annual sampling report.
MW-11 (Shallow Background)
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-11d (Deep Background)
Metals: Vanadium*
Volatile Organic Compounds: None Detected

Ms. Jaclynne Drummond
October 23, 2017
Page 2
MW-5R
Metals: Cobalt
Volatile Organic Compounds: Benzene, 1,4-Dichlorobenzene, Vinyl Chloride

MW-6
Metals: Cobalt*
Volatile Organic Compounds: None Detected

MW-6d
Metals: Cobalt*, Vanadium*
Volatile Organic Compounds: None Detected

MW-7
Metals: Cobalt
Volatile Organic Compounds: None Detected

MW-8
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-8d
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-9
Metals: Chromium, Cobalt*, Lead, Thallium*, Vanadium
Volatile Organic Compounds: None Detected
MW-10
Metals: Cobalt*, Vanadium*
Volatile Organic Compounds: Tetrachloroethene, Trichloroethene

MW-10d
Metals: None Detected
Volatile Organic Compounds: None Detected

MW-23
Metals: Chromium, Cobalt*, Lead, Thallium*, Vanadium
Volatile Organic Compounds: None Detected

Ms. Jaclynne Drummond
October 23, 2017
Page 3
MW-23d
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-24
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-29d
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-31d
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-32
Metals: None Detected
Volatile Organic Compounds: None Detected

TB-1a deep
Metals: Vanadium*
Volatile Organic Compounds: None Detected

MW-36
Metals: Chromium, Cobalt*, Vanadium*
Volatile Organic Compounds: None Detected

MW-36d
Metals: Vanadium*
Volatile Organic Compounds: None Detected
Vanadium was detected in the shallow and deep background monitoring wells (MW-11 and -11D)
above its Groundwater Protection Standard. Historically, cobalt has also been detected in the
background monitoring wells above the Groundwater Protection Standard. The chromium, cobalt,
thallium, and vanadium concentrations in the compliance monitoring wells above the NC 2L or
Groundwater Protection Standards are likely naturally occurring based on the historical detections
and concentrations in the background and compliance monitoring wells at the site. These
concentrations are being evaluated as part of an ongoing Alternate Source Demonstration (ASD).
Filtered samples were collected from monitoring wells (MW-9, -23, -24, and -36) with an elevated
turbidity (i.e. greater than 10 nephelometric turbidity units) during the September 2017 sampling
event in order to demonstrate that select metals exceeding the NC 2L or Groundwater Protection

Ms. Jaclynne Drummond
October 23, 2017
Page 4
Standards are not related to a release from the landfill. Total metals that exceeded the NC 2L or
Groundwater Protection Standards from these wells were analyzed for dissolved metals to determine
if turbidity was a contributing factor to total reported metals. Dissolved metal sample results are
provided in Table 1.
The ASD will be submitted following evaluation of the current and historic data and site conditions. If
you have any questions or require further explanation, do not hesitate to call me at [phone].
Very truly yours,
Mathew F. Colone, P.G.
CDM Smith Inc.

cc: John Roberson, WCSWM
Elliott Cornell, WCSWM

Table 1a
Detected Groundwater Constituents - Metals
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Monitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadMercuryNickelSeleniumSilverThalliumVanadiumZincNorth Carolina 2L or
Groundwater Protection
Standard
1*10 700 4*2 10 1*1,000 15 1 100 20 20 0.2*0.3*1,000
6 10 100 1 1 10 10 10 10 0.2 50 10 10 5.5 25 10
MW-11 17-Mar-11 76.7J 1.6J 3.88J 0.265J 3.51J 24.3
MW-11 1-Nov-11 80.7J 1.9J 6.33JB 2.14JB 3.61J 19.6
MW-11 25-Apr-12 65.3J 2.37J 3.23J 12.1
MW-11 23-Oct-12 80.6J 1.42J 3.66J 5.32J 19.7
MW-11 17-Apr-13 90J 0.2J 2J 2J 8J 1J 1J 9J 20B
MW-11 16-Oct-13 100 0.1J 0.2J 2J 1J 4J 0.5J 0.9J 5J 15B
MW-11 16-Apr-14 170 0.5J 0.2J 4J 6J 18 3J 3J 0.08J 40 50B
MW-11 12-Nov-14 90J 0.2J 0.2J 2J 2J 8J 1J 1J 0.05J 7J 24
MW-11 30-Apr-15 100 0.2J 2J 3J 10J 1J 2J 0.06J 12J 27
MW-11 15-Oct-15 110 0.3J 0.1J 3J 3J 11 1J 0.04J 2J 0.05J 13JB 27
MW-11 21-Apr-16 0.5J 130 0.3J 3J 4J 16 2J 2J 0.1JB 18J 32
MW-11 1-Sep-16 90J 0.28J 0.54J 2.4J 2.6J 8.3J 1.3J 1.6J 11J 20
MW-11 20-Apr-17 61J 1.2J 1.5J 11
MW-11 22-Sep-17 45J 2.4J 1.8J 3.7J 6.3J
MW-11d 18-Mar-11 0.852J 51.2J 3.43J 4.41J 3.73J 8.04J
MW-11d 2-Nov-11 45.5J 2.18J 4.14JB 2.45J 5.86J
MW-11d 26-Apr-12 0.247J 44.2J 3.04J 9.68JB 3.31J 2.05J 4.62J
MW-11d 24-Oct-12 43.7J 0.375J 2.40J 2.53J 5.10J
MW-11d 18-Apr-13 0.4J 50J 0.1J 2JB 0.2J 1J 0.6J 4JB
MW-11d 17-Oct-13 0.6J 0.6J 50J 0.3J 1J 0.2J 1J 0.02J 0.6J 2J 2JB
MW-11d 17-Apr-14 300 2.1 0.2J 15 13 56 11 9J 0.2J 99 88
MW-11d 13-Nov-14 150 0.7J 0.1J 5J 4J 18 4J 3J 0.07J 37 35
MW-11d 29-Apr-15 0.6J 0.5J 60J 0.1J 0.1J 2J 0.6J 3J 0.6J 0.9J 5J 8J
MW-11d 15-Oct-15 0.4J 90J 0.3J 0.1J 3J 2J 9J 2J 0.05J 2J 14JB 16
MW-11d 21-Apr-16 0.3J 60J 2J 0.3J 4J 0.5J 2J 12
MW-11d 1-Sep-16 0.43BJ 45J 0.076J 1.2J 2.1J 0.25J 0.75J 2.7J 9.2JB
MW-11d 20-Apr-17 48J 2.2J 2.2J 2.2J 5.0J
MW-11d 22-Sep-17 45J 2.8J 1.6J 3.3J 5.1J
MW-5R 16-Mar-11 95J 4.62J 3.39J 0.267J 6.9J
MW-5R 31-Oct-11 123 3.28J 2.17J 5.83JB 1.13J 0.152J 8.33J
MW-5R 24-Apr-12 0.411J 97.3J 2.79J 2.47J 0.170J 4.28J
MW-5R 22-Oct-12 99.3J 1.82J 3.61J 0.114J 23.9
MW-5R 17-Apr-13 80J 0.08J 2J 0.3J 3J 0.1J 5JB
MW-5R 16-Oct-13 90J 0.05J 1J 0.5J 0.4J 3J 0.1J 5JB
MW-5R 16-Apr-14 80J 0.3J 0.3J 0.2J 0.5J 1J 0.2J 2J 5JB
MW-5R 12-Nov-14 80J 2J 0.2J 2J 0.3J 6JB
MW-5R 30-Apr-15 70J 0.1J 0.8J 0.1J 1J 0.1J 4J
MW-5R 15-Oct-15 110 0.2J 7J 0.8J 2J 0.6J 0.04J 4J 0.1J 6J
MW-5R 21-Apr-16 60J 0.07J 1J 0.2J 0.4J 1J 0.1JB 2J
MW-5R 14-Sep-16 79J 0.063J 1.7J 0.45JB 0.046JB 2.4J 0.080J 1.1J 5.3JB
MW-5R 20-Apr-17 71J 1.5J
MW-5R 20-Sep-17 430 13 1.7J 1.4J 5.8J
MW-6 16-Mar-11 365 7.08J 57.7 4.66J 11.5J 2.68J 3.18J 0.741J 51.3
MW-6 1-Nov-11 0.229J 3.98J 454 6.35J 65.7 4.04JB 18.2JB 2.55J 4.11J 5.36J
MW-6 24-Apr-12 0.244J 182 3.49J 54.9 8.45J 2.18J 0.134J 117
MW-6 22-Oct-12 258 0.148J 1.59J 80.4 15.1J
MW-6 17-Apr-13 100J 0.05J 1.6 35 4J 0.17J 6J 0.3J 9JB
MW-6 16-Oct-13 90J 0.04J 0.3J 34 2J 0.02J 5J 2J 0.2J 3J 5JB
MW-6 (dup)16-Oct-13 90J 0.2J 0.6J 35 2J 0.04J 6J 2J 0.2J 3J
MW-6 16-Apr-14 0.2J 60J 0.10J 0.8J 1J 18 3J 0.21 4J 0.3J 2J 8JB
MW-6 (dup)16-Apr-14 60J 0.07J 0.7J 1J 18 2J 0.21 4J 0.2J 3J 8JB
MW-6 12-Nov-14 0.8J 310 49 1J 0.02J 15J 2J 0.1J 2JB
MW-6 30-Apr-15 70J 0.06J 0.1J 25 1J 0.08J 4J 0.1J 3J
MW-6 14-Oct-15 230 0.2J 32 4J 0.03J 13J 2J 0.3J
MW-6 20-Apr-16 70J 0.04J 8J 0.5J 0.03J 3J 1J 0.08J
MW-6 (dup)20-Apr-16 70J 0.3J 7J 0.6J 0.03J 3J 1J 0.07J
MW-6 14-Sep-16 0.19JB 0.29J 210 0.13J 19 2.1JB 0.032JB 9.3J 1.1J 0.084J 1.2J 6.0JB
MW-6 20-Apr-17 120 2.5J 8.3J 0.98J 0.40 4.2J
MW-6 20-Apr-17 130 2.6J 8.2J 1.0J 0.41 4.8J 21
MW-6 21-Sep-17 160 5.3J 2.2J 7.6J
Solid Waste Section Limit
Page 1 of 12 October 2017
Table 1a
Detected Groundwater Constituents - Metals
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Monitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadMercuryNickelSeleniumSilverThalliumVanadiumZincNorth Carolina 2L or
Groundwater Protection
Standard
1*10 700 4*2 10 1*1,000 15 1 100 20 20 0.2*0.3*1,000
6 10 100 1 1 10 10 10 10 0.2 50 10 10 5.5 25 10Solid Waste Section Limit
MW-6d 16-Mar-11 0.961J 68.2J 3.05J 3.91J 0.428J 3.28J 6.94J
MW-6d 2-Nov-11 2.63J 100 5.42J 1.26J 6.46JB 4.68J 3.98J 13.1
MW-6d 26-Apr-12 1.59J 72J 5.68J 7.24JB 2.37J 2.61J 4J 6.97J
MW-6d (dup)26-Apr-12 1.22J 66J 5.53J 6.45JB 2.10J 2.20J 3.78J 5.88J
MW-6d 23-Oct-12 1.21J 2.84J 71.1J 0.407J 4.83J 2.83J 2.11J 3.59J 6.02J
MW-6d 18-Apr-13 3.1J 80J 0.1J 0.5J 4J 0.9J 3J 0.4J 2J 8JB
MW-6d (dup)18-Apr-13 2.8J 70J 0.09J 0.4J 4J 0.8J 3J 0.4J 2J 6JB
MW-6d 17-Oct-13 6.9 80J 0.1J 0.5J 4J 1J 4J 0.6J 0.03J 3J 3J 7JB
MW-6d 17-Apr-14 1.2J 60J 0.1J 0.1J 4J 1.0J 2J 0.3J 2J 6J 7JB
MW-6d 12-Nov-14 1.2J 60J 0.1J 0.2J 3J 1J 2J 0.3J 2J 4JB
MW-6d 30-Apr-15 1.7J 0.6J 50J 0.08J 0.1J 4J 0.9J 2J 0.2J 2J 3J 4J
MW-6d (dup)30-Apr-15 2.1J 80J 0.05J 0.2J 4J 0.9J 2J 0.3J 0.05J 2J 3J 6JB
MW-6d 15-Oct-15 1.1J 60J 0.1J 0.2J 4J 0.6J 2J 0.4J 0.04J 3J 2JB 6J
MW-6d 20-Apr-16 0.4J 50J 0.07J 0.1J 4J 0.6J 2J 3J 4J
MW-6d 12-Sep-16 1.0J 65J 0.21J 4.4J 0.85J 6.6JB 1.7J 2.4J 0.34J 4.7J 15
MW-6d 20-Apr-17 51J 2.6J 2.4J 1.6J 2.6J 9.1J
MW-6d 22-Sep-17 0.66J 33J 4.2J 3.1J 4.1J 6.3J
MW-7 16-Mar-11 51.7J 1.2 6.76J 30.5 4.81J 11.8J 1.42J 3.14J 0.36J 1.73J 11.8
MW-7 2-Nov-11 67.1J 0.38J 14.9 31.6 21.2B 13.4J 1.17J 3.27J 9.74J 44.8
MW-7 26-Apr-12 50.3J 0.805J 13.3 27.1 10.7B 4.04J 10.9J 3.63J 7.24J 13.9
MW-7 22-Oct-12 80.7J 29.6 30.8 37.4 6.69J 11.5J 2.02J 0.152J 24.2J 24.1
MW-7 16-Apr-13 80J 0.5J 0.6J 35 27 61 9J 0.18J 13J 2J 0.2J 24J 25B
MW-7 16-Oct-13 60J 0.1J 0.6J 5J 37 11 1J 0.04J 12J 3J 12J 11B
MW-7 16-Apr-14 50J 0.2J 1.1 10J 46 19 3J 0.04J 17J 3J 0.09J 23J 40B
MW-7 11-Nov-14 0.5J 70J 0.4J 0.7J 23 26 45 7J 0.28 13J 2J 0.2J 5J 22
MW-7 30-Apr-15 60J 0.1J 0.9J 5J 48 11 2J 0.04J 17J 0.08J 33
MW-7 14-Oct-15 40J 0.1J 0.4J 7J 30 10 2J 0.02J 10J 1J 0.05J 31
MW-7 20-Apr-16 40J 0.06J 1.0 2J 52 7J 2J 0.03J 17J 2J 11
MW-7 13-Sep-16 0.24J 44J 1.6 1.4J 41 5.5JB 1.1J 12J 4.0J 13
MW-7 18-Apr-17 34J 0.13J 0.83J 6.1J 31 30 16 0.037J 9.2J 8.1J 7.4J
MW-7 18-Sep-17 0.52J 27J 23 1.1J 6.8J
MW-8 16-Mar-11 41.1J 2.83J 1.63J 2.22J 0.873J 0.279J 1.65J 6.42J
MW-8 31-Oct-11 56.5J 7.42J 4.53JB 4.95JB 5.18J 7.32J
MW-8 24-Apr-12 0.937J 41.3J 1.21J 3.19J 1.83J 515
MW-8 22-Oct-12 41.8J 0.146J 0.404J 1.20J 2.76J 1.97J
MW-8 17-Apr-13 0.8J 50J 0.08J 2J 1J 0.03J 4J 9JB
MW-8 16-Oct-13 50J 0.1J 0.2J 2J 2J 4J
MW-8 16-Apr-14 50J 0.07J 1J 1J 5J 5J 107
MW-8 12-Nov-14 50J 0.6J 0.4J 5J 5JB
MW-8 30-Apr-15 80J 0.1J 0.1J 4J 2J 2J 0.2J 7J 14
MW-8 15-Oct-15 80J 0.08J 0.1J 2J 2J 0.3J 0.04J 6J 6J
MW-8 21-Apr-16 70J 0.8J 2J 0.02J 6J 0.05JB 6J
MW-8 14-Sep-16 65J 0.13J 1.9J 0.27JB 6.6J 2.9J 8.5JB
MW-8 20-Apr-17 61J 4.9J 1.8J 4.7J
MW-8 18-Sep-17 73J 0.14J 0.85J 4.6J 3.0J 5.7J
MW-8d 18-Mar-11 0.512J 28.7J 5.85J 4.41J 2.19J 5.18J 4.47J
MW-8d 2-Nov-11 0.724J 25.0J 1.05 5.02J 5.02JB 2.00J 4.22J 7.28J
MW-8d 26-Apr-12 1.63J 34.5J 11B 2.82J 4.15J 7.52J
MW-8d 24-Oct-12 1.59J 30.6J 0.483J 5.46J 3.21J 4.79J 9.99J
MW-8d 18-Apr-13 0.6J 20J 4J 0.3J 1J 0.2J 1J 0.06J 2JB
MW-8d 17-Oct-13 40J 0.2J 0.3J 6J 1J 6J 1J 0.03J 2J 7J
MW-8d 17-Apr-14 0.9J 20J 0.1J 4J 0.4J 2J 0.3J 0.8J 7J 5JB
MW-8d 12-Nov-14 1.0J 20J 4J 0.3J 2J 0.3J 0.9J 2JB
MW-8d 30-Apr-15 2.5J 0.6J 20J 0.1J 3J 0.4J 1J 0.4J 1J 2J 4J
MW-8d 15-Oct-15 0.2J 20J 3J 0.06J 0.05J 0.5J 1JB
MW-8d 21-Apr-16 20J 3J 0.5J
MW-8d 14-Sep-16 16J 1.7J 0.60JB 0.047JB 0.72J 4.8J 2.0JB
MW-8d 20-Apr-17 19J 2.6J 4.3J 4.0J 3.1J
MW-8d 18-Sep-17 16J 2.9J 3.3J
MW-8d (dup)18-Sep-17 17J 3.2J 2.8J
Page 2 of 12 October 2017
Table 1a
Detected Groundwater Constituents - Metals
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Monitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadMercuryNickelSeleniumSilverThalliumVanadiumZincNorth Carolina 2L or
Groundwater Protection
Standard
1*10 700 4*2 10 1*1,000 15 1 100 20 20 0.2*0.3*1,000
6 10 100 1 1 10 10 10 10 0.2 50 10 10 5.5 25 10Solid Waste Section Limit
MW-9 17-Mar-11 176 0.241J 7.36J 4.82J 2.1J 3.79J 0.841J 3.51J 0.405J 13.2
MW-9 1-Nov-11 209 0.425J 14.9 6.79J 8.83JB 6.37J 4.11JB 0.982J 4.52J 0.164J 6.88J 69.2
MW-9 (dup)1-Nov-11 191 0.256J 10.4 5.81J 5.32JB 3.99J 3.08JB 0.874J 3.66J 0.127J 3.26J 50.1
MW-9 25-Apr-12 176 0.220J 5.68J 4.81J 2.72J 13.5
MW-9 23-Oct-12 5.17J 210 0.711J 4.13 19.7 6.96J 17.1 27.2 3.41J 7.49J 0.521J 30.2 141
MW-9 17-Apr-13 160 0.3JB 2 3J 4J 4J 4J 4J 0.3J 8J 27B
MW-9 16-Oct-13 120 0.2J 1.1 2J 0.4J 2J 1J 2J 0.2J 6J 16B
MW-9 16-Apr-14 130 0.4J 1.3 4J 0.8J 5J 4J 3J 0.3J 16J 36B
MW-9 12-Nov-14 120 0.3J 0.4J 4J 0.6J 4J 3J 2J 0.2J 17
MW-9 (dup)12-Nov-14 140 0.5J 0.4J 6J 1J 6J 6J 2J 0.3J 4J 28
MW-9 29-Apr-15 0.7J 90J 0.1J 0.3J 2J 0.1J 1J 0.8J 0.8J 0.2J 3J 8J
MW-9 15-Oct-15 160 0.7J 0.2J 9J 1J 6J 7J 0.07J 1J 0.3J 11JB 31
MW-9 20-Apr-16 150 0.2J 2J 0.2J 1J 0.7J 0.9J 0.1J 3J
MW-9 13-Sep-16 100 0.15J 0.12J 1.7J 1.3JB 1.0J 1.2J 0.16J 11JB 9.4J
MW-9 19-Apr-17 130 2.1J 1.0J 0.52J 7.4J 4.6J
MW-9 21-Sep-17 160 1.4 0.37J 13 1.9J 11 15 2.1J 0.40J 34 49
MW-9 (dissolved)21-Sep-17 NA NA NA NA NA NA NA NA NA NA NA 11J NA
MW-10 17-Mar-11 34J 0.285J 2.22J 1.93J 4.17J 2.25J 0.388 2.48J 0.352J 14.1
MW-10 31-Oct-11 28.1J 1.72J 1.61J 3.56JB 3.00J 1.94J 12.8
MW-10 25-Apr-12 34.7J 0.320J 0.438J 1.79J 2.04J 4.81J 2.64J 0.538 2.25J 21.7
MW-10 23-Oct-12 31.1J 0.302J 0.965J 2.07J 2.51J 2.57J 0.910 2.07J 16.5
MW-10 17-Apr-13 30J 0.3JB 0.4J 0.4J 2J 2JB 1J 0.43 3J 0.06J 14B
MW-10 16-Oct-13 30J 0.3J 0.2J 0.4J 2J 2J 1J 0.29 3J 0.05J 4J 9JB
MW-10 16-Apr-14 30J 0.3J 0.2J 2J 1J 0.5J 0.05J 3J 4J 38B
MW-10 12-Nov-14 30J 0.3J 2J 0.03J 3J 9JB
MW-10 29-Apr-15 0.2J 40J 0.3J 0.1J 3J 2J 1J 0.10J 5J 0.05J 10
MW-10 14-Oct-15 30J 0.3J 0.2J 2J 0.8J 0.4J 0.08J 3J 27
MW-10 20-Apr-16 30J 0.3J 0.1J 4J 0.6J 0.3J 0.03J 5J 1J 0.05J 4J
MW-10 13-Sep-16 0.47J 31J 0.36J 0.19J 3.8J 2.0JB 1.2J 0.14J 4.8J 3.6J 280
MW-10 19-Apr-17 27J 0.32J 2.9J 0.93J 0.38J 0.064J 3.4J 17
MW-10 22-Sep-17 17J 0.18J 1.3J 2.2J 0.30J 2.3J 2.1J 8.9J
MW-10d 18-Mar-11 3.88J 2.16J 4.02J
MW-10d 2-Nov-11 3.81J 2.10J 3.18JB 4.14J
MW-10d 26-Apr-12 0.232J 4.36J 3.50J 3.47JB 4.57J
MW-10d 24-Oct-12 3.11J
MW-10d 18-Apr-13 4JB 1JB 0.07J 0.7J 1J
MW-10d 16-Oct-13 0.3J 3JB 0.2J 1J 0.05J 0.7J 0.6J
MW-10d 17-Apr-14 2J 0.4J 0.6J 4J 3JB
MW-10d 12-Nov-14 3J 0.5J 0.04J 0.4J
MW-10d 30-Apr-15 0.8J 0.5J 3J 0.3J 0.3J 0.05J 0.6J 4J
MW-10d 15-Oct-15 0.5J 5J 0.07J 0.8J 0.08J 1J 0.2J 0.07J 0.6J 5J
MW-10d 21-Apr-16 0.3J 5J 0.2J 2J 1J 2J 6J
MW-10d 14-Sep-16 2.5J 0.67JB 0.15J 3.3J 5.5JB
MW-10d 19-Apr-17 2.5J 0.14J 0.70J
MW-10d 18-Sep-17 4.1J 0.35J 1.4J 3.1J 0.32J 6.9J
MW-22 18-Mar-11 40.7J 0.105J 2.21 4.1J 14.8 2.71J 3.69J 7.49J 4.89J 16.1
MW-22 1-Nov-11 41.2J 7.96 4.25J 46.7 5.24JB 17.2JB 2.87J 3.22J 43.9
MW-22 25-Apr-12 61.5J 0.224J 4.78 4.77J 63.8 14J 2.56J 0.162J 33.1 18.4
MW-22 23-Oct-12 34.7J 8.27 2.28J 44.7 16.8J 4.02J 19.2
MW-22 17-Apr-13 70J 0.1J 4 0.9J 76 1JB 0.7J 15J 0.06J 12B
MW-22 16-Oct-13 50J 0.1J 3.5 1J 25 1J 1J 10J 3J 8JB
MW-22 16-Apr-14 50J 0.1J 2.5 0.9J 43 1J 1J 14J 4J 14B
MW-22 12-Nov-14 40J 0.1J 2.5 3J 17 2J 2J 10J 9J
MW-22 30-Apr-15 50J 1.5 0.6J 31 0.7J 0.6J 10J 9J
MW-22 15-Oct-15 80J 0.7J 3.4 9J 29 5J 9J 0.05J 13J 4J 0.2J 14JB 56
MW-22 20-Apr-16 40J 0.07J 1.3 18 0.5J 0.3J 7J 6J
MW-22 13-Sep-16 82J 0.82J 3.1 12 38 6.9JB 11 14J 3.1J 0.20J 18J 47
MW-22 19-Apr-17 45J 0.26J 2.8 1.9J 18 2.6J 1.6J 6.5J 0.93J 6.4J 13
MW-22 18-Sep-17 Not Sampled(4)
Page 3 of 12 October 2017
Table 1a
Detected Groundwater Constituents - Metals
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Monitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadMercuryNickelSeleniumSilverThalliumVanadiumZincNorth Carolina 2L or
Groundwater Protection
Standard
1*10 700 4*2 10 1*1,000 15 1 100 20 20 0.2*0.3*1,000
6 10 100 1 1 10 10 10 10 0.2 50 10 10 5.5 25 10Solid Waste Section Limit
MW-23 18-Mar-11 43.3J 5.52J 9.92J 6.42J 3.64J 11.4J 23.7
MW-23 2-Nov-11 43.5J 5.93J 11.0B 2.79J 4.01J 9.10J 14.8
MW-23 26-Apr-12 42.7J 6.68J 1.63J 10.4B 7.07J 4.20J 12.5J 17.5
MW-23 24-Oct-12 38.9J 5.76J 1.83J 8.02J 4.12J 3.92J 13.3J 18.5
MW-23 18-Apr-13 0.2J 240 1.8 0.1J 30 15 56 30 0.06J 28J 1J 106 147
MW-23 16-Oct-13 30J 0.2J 0.1J 3J 0.7J 4J 2J 0.02J 2J 5J 6JB
MW-23 16-Apr-14 50J 0.3J 0.2J 7J 2J 10 5J 4J 0.1J 16J 25B
MW-23 12-Nov-14 50J 0.4J 7J 2J 12 6J 0.02J 5J 0.1J 12J 19
MW-23 30-Apr-15 0.4J 50J 0.3J 7J 2J 13 6J 0.03J 6J 0.1J 15J 26
MW-23 15-Oct-15 110 1.1 20 7J 34 18 0.06J 16J 0.5J 39 69
MW-23 (dup)15-Oct-15 170 1.6 32 11 51 30 0.12J 25J 0.8J 60 112
MW-23 20-Apr-16 40J 0.3J 5J 1J 9J 5J 4J 0.1J 9J 21
MW-23 13-Sep-16 54J 0.59J 0.083J 8.9J 3.3J 15B 7.7J 6.9J 0.22J 23J 39
MW-23 19-Apr-17 26J 0.19J 3.3J 4.5J 2.1J 2.4J 6.5J 7.2J
MW-23 20-Sep-17 110 1.5 0.14J 19 6.6J 33 17 16J 0.48J 59 67
MW-23 (dissolved)20-Sep-17 NA NA NA NA NA NA NA NA NA NA 3.3J NA
MW-23d 17-Mar-11 0.561J 41.7J 4.14J 4.38J 1.04J 5.04J 5.36J
MW-23d 1-Nov-11 0.798J 35.8J 3.92J 4.12JB 3.75J 10.9
MW-23d 25-Apr-12 0.754J 35J 0.746J 4.03J 16.8B 3.32J 4.05J 6.65J
MW-23d 23-Oct-12 0.552J 33.2J 0.644J 4.73J 4.38J 4.48J 8.66J
MW-23d 18-Apr-13 2.6J 40J 1.5 3JB 0.3J 4J 0.4J 1J 12B
MW-23d 17-Oct-13 1.7J 40J 0.05J 0.7J 2J 0.3J 3J 0.3J 0.02J 1J 3J 3JB
MW-23d 17-Apr-14 1.3J 30J 0.3J 2J 0.3J 2J 0.3J 1J 6J 8JB
MW-23d 13-Nov-14 1.1J 40J 0.2J 2J 0.3J 2J 0.3J 0.8J 2J 6J
MW-23d 29-Apr-15 1.6J 40J 0.2J 2J 0.3J 2J 0.3J 0.9J 2J 6J
MW-23d 15-Oct-15 3.6J 40J 0.04J 0.5J 3J 0.4J 4J 0.6J 0.05J 1J 2JB 13
MW-23d 20-Apr-16 1.1J 40J 0.2J 3J 0.3J 2J 0.2J 4J 7J
MW-23d 13-Sep-16 1.2J 37J 0.23J 2.3J 0.26J 2.5JB 0.48J 2.5J 6.1J 13
MW-23d (dup)13-Sep-16 0.97J 36J 0.22J 1.9J 2.2JB 0.36J 2.2J 5.7J 10
MW-23d 19-Apr-17 0.53J 34J 0.24J 2.0J 4.9J 1.4J 3.7J 6.9J
MW-23d 21-Sep-17 34J 2.7J 3.8J 3.5J 5.8J
MW-24 18-Mar-11 3.98J 33J 2.17J 2.92J 3.62J 1.13J 4.25J 27.1
MW-24 2-Nov-11 48.8J 3.81J 6.75JB 4.69J 2.13J 6.26J 43.6
MW-24 26-Apr-12 57.6J 0.281J 7.54J 7.09JB 9.80J 3.35J 1.82J 0.190J 8.38J 58.7
MW-24 23-Oct-12 35.9J 2.10J 2.50J 4.01J 0.120J 5.34J 28.3
MW-24 17-Apr-13 120 1.4J 0.1J 9J 2J 11 17 0.24 5J 0.5J 17J 128
MW-24 16-Oct-13 60J 0.6J 0.1J 4J 0.9J 5J 7J 0.09J 2J 0.2J 8J 46
MW-24 16-Apr-14 120 1.1 6J 2J 9J 14 0.17J 4J 0.4J 22J 120
MW-24 12-Nov-14 130 1.5 8J 2J 11 17 0.21 5J 0.6J 14J 117
MW-24 29-Apr-15 80J 0.8J 4J 1J 7J 9J 0.12J 3J 0.3J 10J 69
MW-24 14-Oct-15 240 2.5 0.2J 12 4J 18 29 0.43 7J 0.9J 34 182
MW-24 20-Apr-16 170 1.8 10J 3J 13 22 0.21 6J 0.7J 23J 140
MW-24 13-Sep-16 34J 0.37J 0.086J 1.4J 0.55J 2.3JB 3.6J 1.5J 0.12J 7.5J 31
MW-24 19-Apr-17 66J 0.77J 3.8J 0.98J 5.0J 7.9J 0.086J 2.5J 0.24J 9.1J 56
MW-24 20-Sep-17 51J 0.76J 3.9J 0.71J 4.6J 5.8J 2.4J 0.19J 7.5J 47
MW-24 (dissolved)20-Sep-17 NA NA NA NA NA NA NA NA NA NA NA NA NA 3.6J NA
MW-28 18-Mar-11 51.5J 9.81J 1.82J 2.29J 5.21J 2.92J 1.45J 0.179J 14J 40.5
MW-28 26-Apr-12 67.7J 14.2 3.90J 2.81JB 5.18J 5.84J 0.229J 20.7J 69.8
MW-28 18-Apr-13 60J 0.3J 10 3J 1J 1J 4J 0.2J 10J 34B
MW-28 17-Apr-14 170 1.5 41 14 5J 7J 0.02J 20J 1.0J 53 159
MW-28 30-Apr-15 80J 0.5J 16 5J 2J 2J 0.02J 7J 0.4J 22J 62
MW-28 21-Apr-16 20J 4J 0.06J 9J
MW-28 20-Apr-17 29J 0.18J 3.9J 0.30J 1.3J 6.1J 11
MW-28d 18-Mar-11 14.3J 4.17J 2.91J 2.31J 2.08J 1.59J 4.96J 16.8
MW-28d 26-Apr-12 1.46J 28.7J 10.1 1.34J 13.3B 4.99J 9.42J 4.73J 106
MW-28d 18-Apr-13 0.3J 9JB 2JB 0.1J 0.9J 0.9J 4JB
MW-28d 17-Apr-14 0.4J 1J 6J 4J 0.4J 3J 1.0J 5J 6J 10B
MW-28d 30-Apr-15 0.2J 10J 2J 0.09J 0.6J 0.9J 7J
MW-28d 21-Apr-16 9J 2J 0.8J 9J 9J
MW-28d 20-Apr-17 8.1J 1.3J 0.68J 3.3J 5.9J
Page 4 of 12 October 2017
Table 1a
Detected Groundwater Constituents - Metals
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Monitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadMercuryNickelSeleniumSilverThalliumVanadiumZincNorth Carolina 2L or
Groundwater Protection
Standard
1*10 700 4*2 10 1*1,000 15 1 100 20 20 0.2*0.3*1,000
6 10 100 1 1 10 10 10 10 0.2 50 10 10 5.5 25 10Solid Waste Section Limit
MW-29d 18-Mar-11 0.391J 3.08J 54.8J 9.57J 16.2 4.09J 4.15J 7.4J 15.5
MW-29d 1-Nov-11 42.7J 6.46J 1.21J 12.4B 2.70J 4.25J 17.2
MW-29d 26-Apr-12 0.317J 41.5J 6.48J 8.73JB 3.94J 1.97J 3.72J 23.2
MW-29d 24-Oct-12 38.0J 4.87J 6.36J 2.48J 4.36J 7.64J
MW-29d 18-Apr-13 40J 0.08J 4J 0.4J 5J 0.3J 1J 0.05J 3JB
MW-29d 17-Oct-13 40J 0.1J 4J 0.2J 3J 1J
MW-29d 17-Apr-14 40J 0.08J 3J 0.2J 3J 0.8J 5J 25B
MW-29d 13-Nov-14 40J 0.07J 3J 0.5J 4J 0.3J 2J 2J
MW-29d 29-Apr-15 0.2J 0.5J 40J 0.1J 4J 0.3J 4J 0.3J 1J 13
MW-29d 15-Oct-15 0.2J 40J 0.1J 4J 0.3J 4J 0.6J 0.04J 1J 8J
MW-29d 21-Apr-16 0.6J 40J 4J 0.3J 5J 0.2J 1J 6J
MW-29d 12-Sep-16 0.38J 39J 2.7J 3.1JB 0.25J 0.90J 4.8J 22
MW-29d 19-Apr-17 36J 2.7J 1.9J 2.3J 13
MW-29d 22-Sep-17 35J 3.9J 2.8J 5.9J
MW-30 18-Mar-11 91.1J 0.202J 29 4.25J 37.1 8.69J 11.2J 1.12J 27 37.1
MW-30 1-Nov-11 147 0.302J 47.5 8.80J 69.8B 3.90J 22.2JB 3.51J 0.196J 44 60.8
MW-30 25-Apr-12 169 0.773J 58 9.94J 73.9 9.17J 22.7J 2.15J 0.360J 51.7 54.7
MW-30 23-Oct-12 197 57.5 11.3 80.2 9.44J 26.3 0.359J 54.4 62.6
MW-30 17-Apr-13 450 2.8 0.1J 124 24 155 17 0.04J 56 1J 146 141
MW-30 16-Oct-13 220 1.4 49 9J 63 6J 0.03J 21J 0.3J 50 40
MW-30 16-Apr-14 220 1.4 66 11 78 7J 0.02J 26J 0.5J 73 71
MW-30 12-Nov-14 500 3.0 0.2J 148 24 169 19 0.07J 59 2J 1.1J 154 148
MW-30 29-Apr-15 180 1.2 59 9J 67 6J 23J 0.4J 48 53
MW-30 15-Oct-15 0.4J 60J 1.2 0.7J 48 1J 12 2J 0.05J 10J 0.06J 63 44
MW-30 21-Apr-16 150 0.8J 46 7J 54 5J 0.02J 18J 0.3JB 29 38
MW-30 14-Sep-16 0.17JB 50J 0.36J 0.053J 8.8J 1.6J 11B 0.95J 4.5J 11J 18B
MW-30 20-Apr-17 79J 0.56J 25 3.1J 28 2.2J 8.7J 0.14J 19J 22
MW-30 22-Sep-17
MW-31 17-Mar-11 42.6J 14 7.79J 4.47J 3.2J 0.255J 9.69J 26.3
MW-31 1-Nov-11 84.2J 0.151J 33.3 2.57J 23.9B 7.27J 13.7JB 2.66J 0.129J 26.2 57.9
MW-31 25-Apr-12 33.4J 0.122J 13.1 6.71J 3.56J 5.40J 0.904J 9.25J 33.1
MW-31 23-Oct-12 35.7J 14 6.52J 3.76J 5.09J 9.26J 53.6
MW-31 17-Apr-13 70J 0.4J 24 1J 14 7J 0.03J 8J 0.05J 18J 29B
MW-31 16-Oct-13 30J 0.1J 11 0.4J 5J 2J 5J 5J 13B
MW-31 16-Apr-14 90J 0.5J 0.2J 32 2J 18 10 0.07J 8J 0.07J 35 70
MW-31 12-Nov-14 0.5J 110 0.7J 41 2J 26 14 0.08J 11J 0.1J 37 29
MW-31 29-Apr-15 50J 0.2J 14 0.6J 7J 4J 0.03J 3J 13J 14
MW-31 14-Oct-15 0.5J 120 0.6J 38 2J 24 13 0.11J 9J 0.08J 37 37
MW-31 21-Apr-16 0.6J 70J 0.5J 30 2J 17 12 0.14J 5J 0.07JB 26 17
MW-31 13-Sep-16 29J 0.23J 13 0.64J 5.6B 3.4J 2.0J 12J 12
MW-31 19-Apr-17 28J 8.3J 3.9J 1.8J 2.6J 0.22J 5.2J 12
MW-31 21-Sep-17
MW-31d 16-Mar-11 1.19J 20.3J 9.86J 4.08J 2.56J 1.24J 0.327J 9.46J 30.5
MW-31d 31-Oct-11 1.21J 21.2J 13.4 34.2B 4.99JB 10.2J 69.6
MW-31d 24-Apr-12 1.68J 17.1J 6.79J 26.5 0.944J 7.62J 12.6
MW-31d 22-Oct-12 7.20J 19.3J 8.24J 1.82J 7.99J 43.5
MW-31d 16-Apr-13 0.5J 20J 6J 0.08J 0.8JB 1J 6J 21B
MW-31d 15-Oct-13 0.8J 20J 6J 0.06J 1J 0.8J 5J 16B
MW-31d 15-Apr-14 0.7J 20J 5J 0.09J 0.8J 0.9J 9J 24B
MW-31d 11-Nov-14 0.5J 20J 6J 0.08J 0.8J 0.7J 2J 7J
MW-31d 28-Apr-15 1.1J 20J 6J 0.07J 0.9J 0.8J 5J 24
MW-31d 13-Oct-15 1.2J 20J 0.3J 6J 0.05J 3J 0.2J 0.04J 1J 4J 30
MW-31d 21-Apr-16 20J 4J 0.7J 0.9J 2J 5J
MW-31d 13-Sep-16 0.59J 18J 0.14J 5.3J 1.5JB 1.2J 7.2J 56
MW-31d 19-Apr-17 18J 5.4J 2.6J 6.6J 53
MW-31d 18-Sep-17 19J 4.4J 1.0J 7.8J 2.6J
Not Sampled(4)
Not Sampled(4)
Page 5 of 12 October 2017
Table 1a
Detected Groundwater Constituents - Metals
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Monitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadMercuryNickelSeleniumSilverThalliumVanadiumZincNorth Carolina 2L or
Groundwater Protection
Standard
1*10 700 4*2 10 1*1,000 15 1 100 20 20 0.2*0.3*1,000
6 10 100 1 1 10 10 10 10 0.2 50 10 10 5.5 25 10Solid Waste Section Limit
MW-32 17-Mar-11 21.8J 0.145J 4.58J 2.91J 18.2 2.11J 3.91J 0.276J 7.49J 29.5
MW-32 1-Nov-11 5.75J 14.2J 3.41J 1.47J 10.0B 3.39J 2.96J 27.7
MW-32 25-Apr-12 0.393J 3.37J 15.4J 0.261J 1.92J 2.34J 8.49J 1.96J 5.71J 6.22J
MW-32 23-Oct-12 30J 6.71J 3.30J 27.2 5.04J 11.8J 13.1
MW-32 17-Apr-13 30J 0.3J 5J 3J 22 0.5J 5J 9J 8JB
MW-32 16-Oct-13 70J 0.6J 0.3J 11 6J 50 0.9J 10J 0.1J 32 25
MW-32 16-Apr-14 20J 0.3J 2J 2J 8J 0.2J 2J 7J 10B
MW-32 12-Nov-14 50J 0.5J 11 5J 37 0.9J 9J 0.1J 15J 18
MW-32 29-Apr-15 0.6J 140 1.6 0.1J 27 18 131 3J 24J 0.3J 77 58
MW-32 14-Oct-15 170 1.4 0.1J 29 18 135 2J 0.04J 25J 0.3J 91 53
MW-32 21-Apr-16 40J 0.5J 6J 5J 28 0.5J 6J 0.08JB 17J 18
MW-32 13-Sep-16 40J 0.63J 0.20J 8.5J 5.6J 27B 0.75J 7.2J 0.086J 18J 19
MW-32 20-Apr-17 11J 0.30J 1.6J 0.90J 5.1J 1.4J 2.7J 3.5J
MW-32 22-Sep-17 0.66J 14J 0.17J 1.6J 1.3J 1.3J 4.0J
TB-1a 17-Mar-11 32.7J 2.46J 2.23J 11.6 2.68J 3.14J 0.849J 0.332J 7.45J 16.3
TB-1a 1-Nov-11 126 5.39 19.1 11.5 99.3B 19.0J 40.5 91.8
TB-1a 25-Apr-12 0.269J 190 1.5 29 22 158 7.33J 0.348 27.9J 0.186J 61.3 89.4
TB-1a 23-Oct-12 85.4J 0.584J 11.3 14.8 59.6 2.35J 13.3J 25 48.2
TB-1a 17-Apr-13 40J 0.06J 0.3J 5J 9J 24 0.9J 0.1J 6J 9J 11B
TB-1a 16-Oct-13 60J 0.08J 0.3J 6J 10 35 1J 0.12J 9J 14J 14B
TB-1a 16-Apr-14 10J 1.2 0.7J 5J 3J 0.3J 0.13J 3J 5J 16B
TB-1a 12-Nov-14 80J 0.2J 2.7 10J 9J 54 2J 0.34 12J 0.08J 19J 41
TB-1a 29-Apr-15 0.6J 30J 0.06J 1.9 4J 5J 18 1J 0.22 6J 6J 17
TB-1a 15-Oct-15 70J 0.1J 2.5 8J 11 40 2J 0.22 13J 17JB 45
TB-1a 21-Apr-16 50J 0.7J 6J 6J 33 1J 0.22 7J 0.06JB 6J 18
TB-1a 14-Sep-16 0.17JB 99J 0.23J 1.7 12 11 72B 3.5J 0.72B 15J 0.11J 29 49B
TB-1a 20-Apr-17 17J 0.37J 1.0J 3.6J 0.050J 1.9J 5.1J 5.5J
TB-1a 22-Sep-17
TB-1a deep 16-Mar-11 1.19J 14.9J 16.7 3.97J 2.03J 4.68J 0.946J 0.338J 7.43J 12.4
TB-1a deep 31-Oct-11 0.865J 14.2J 22.9 4.52JB 6.60JB 1.13J 7.66J 13.2
TB-1a deep 24-Apr-12 0.928J 15.5J 15 11.5 3.87J 1.23J 6.58J 8.41J
TB-1a deep 23-Oct-12 18.0J 14.9 6.85J 8.29J 6.51J 10.4
TB-1a deep 16-Apr-13 2.3J 20J 0.2J 12 0.9J 8J 0.5J 5J 2J 16B
TB-1a deep 15-Oct-13 2.2J 20J 0.1J 6J 1J 6J 5J 4J 3J 9JB
TB-1a deep 15-Apr-14 2.1J 20J 0.1J 7J 0.8J 5J 0.4J 3J 8J 17B
TB-1a deep 11-Nov-14 2.9J 30J 0.1J 7J 1J 5J 0.5J 4J 18
TB-1a deep 28-Apr-15 2.4J 30J 0.1J 7J 0.8J 4J 0.4J 5J 2J 12
TB-1a deep 14-Oct-15 10J 4J 0.04J 1J
TB-1a deep 20-Apr-16 0.4J 20J 4J 0.7J 2J 0.2J 3J 6J
TB-1a deep 13-Sep-16 0.66J 22J 0.070J 3.1J 0.46J 1.7JB 0.26J 3.2J 6.4J 12
TB-1a deep 19-Apr-17 0.74J 25J 3.2J 3.0J 3.3J 3.9J 13
TB-1a deep 22-Sep-17 0.76J 15J 3.4J 3.4J 6.8J
MW-33 16-Mar-11 66.9J 21.1 5.46J 14.9 4.04J 7.61J 0.298J 29 45.9
MW-33 25-Apr-12 112 0.208J 44.4 15.1 37 6.44J 20.2J 0.917J 72.1 102
MW-33 17-Apr-13 70J 0.3J 17 5J 13 2J 7J 34 33
MW-33 15-Apr-14 40J 5J 0.6J 1J 2J 8J 9JB
MW-33 29-Apr-15 50J 0.07J 7J 1J 3J 0.4J 3J 8J 15
MW-33 21-Apr-16 0.5J 100J 0.1J 17 4J 12 2J 7J 21J 35
MW-33 20-Apr-17 29J 5.1J 1.5J 5.9J 7.4J
MW-34 17-Mar-11 238 2.19 37.2 8.32J 46.3 13.7 24.9J 2.47J 0.254J 72 94.5
MW-34 26-Apr-12 0.261J 184 1.27 25.4 4.77J 23.8B 8.3J 0.255 13.2J 37.4 53.7
MW-34 17-Apr-13 560 5 0.3J 75 17 90 21 0.45 49J 0.3J 239 282
MW-34 15-Apr-14 110 0.3J 0.2J 3J 1J 0.8J 0.25 2J 3J 16B
MW-34 29-Apr-15 220 1.5 0.2J 24 5J 24 5J 0.33 15J 0.1J 47 76
MW-34 21-Apr-16 150 0.5J 9J 2J 5J 0.8J 0.17J 5J 0.08JB 2J 32
MW-34 20-Apr-17 84J 0.29J 4.4J 1.4J 0.25 2.0J 1.5J 13
Not Sampled(4)
Page 6 of 12 October 2017
Table 1a
Detected Groundwater Constituents - Metals
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Monitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadMercuryNickelSeleniumSilverThalliumVanadiumZincNorth Carolina 2L or
Groundwater Protection
Standard
1*10 700 4*2 10 1*1,000 15 1 100 20 20 0.2*0.3*1,000
6 10 100 1 1 10 10 10 10 0.2 50 10 10 5.5 25 10Solid Waste Section Limit
MW-34d 16-Mar-11 0.351J 33.2J 9.87J 8.59J 2.06J 0.946J 0.209J 1.83J 11.2
MW-34d 25-Apr-12 0.575J 32.5J 8.02J 5.86JB 2.66J 1.57J 7.83J
MW-34d 16-Apr-13 0.6J 20J 0.1J 0.3J 4J 0.1J 1JB 0.6J 0.7J 2JB
MW-34d 15-Apr-14 0.4J 0.5J 20J 0.1J 0.2J 4J 0.09J 2J 0.5J 4J 11B
MW-34d 28-Apr-15 0.8J 20J 0.1J 0.3J 5J 0.08J 1J 0.5J 0.05J 0.5J 6J
MW-34d 21-Apr-16 180 0.8J 0.1J 15 3J 12 2J 0.19J 8J 1J 0.1JB 12J 35
MW-34d 20-Apr-17 20J 0.14J 6.4J 0.073J 2.0J 3.0J
MW-35 17-Mar-11 52.9J 0.536J 5.36J 2.04J 7.03J 2.33J 3.08J 0.192J 10.2J 23.2
MW-35 25-Apr-12 51.3J 0.616J 3.96J 2.36J 5.67J 3.10J 11.3J 17.8
MW-35 17-Apr-13 60J 0.8J 0.1J 5J 2J 7J 2J 4J 16J 12B
MW-35 16-Apr-14 60J 1.0J 0.3J 6J 3J 8J 2J 4J 22J 26B
MW-35 29-Apr-15 70J 1.0 0.1J 7J 4J 9J 2J 0.02J 5J 0.06J 22J 20
MW-35 20-Apr-16 50J 0.7J 4J 2J 5J 1J 3J 11J 12
MW-35 20-Apr-17 38J 0.39J 2.3J 6.5J 2.4J 5.0J 3.7J 3.9J 66
MW-36 17-Mar-11 69.7J 10.4 2.66J 9.6J 2.28J 4.16J 0.962J 0.282J 10.7JB 13.8
MW-36 1-Nov-11 74.6J 12.1 3.63J 14.7B 7.15JB 14.8J 31.8
MW-36 25-Apr-12 64.7J 7.90J 2.61J 9.44J 4.33J 12.5J 12.1
MW-36 23-Oct-12 216 68.8 18.8 84 8.62J 29.3J 0.420J 91.7 72
MW-36 (dup)23-Oct-12 73.7J 11.6 3.49J 13.4 6.09J 0.121J 16.8J 18.4
MW-36 17-Apr-13 50J 0.1J 6J 2J 6J 0.5J 4J 8J 12B
MW-36 16-Oct-13 0.6J 60J 0.2J 7J 2J 8J 0.6J 4J 0.05J 10J 4JB
MW-36 16-Apr-14 90J 0.3J 19 5J 23 2J 9J 0.1J 33 32B
MW-36 12-Nov-14 130 0.6J 32 9J 39 3J 15J 0.3J 40 46
MW-36 30-Apr-15 0.6J 100J 0.3J 24 7J 27 2J 0.02J 11J 0.2J 29 27
MW-36 15-Oct-15 130 0.7J 38 10 46 3J 0.05J 16J 0.3J 37 41
MW-36 20-Apr-16 70J 0.3J 13 3J 15 1J 6J 0.1J 11J 17
MW-36 13-Sep-16 62J 0.24J 0.047J 11 3.0J 10B 0.88J 5.3J 0.088J 14J 16
MW-36 20-Apr-17 40J 2.8J 2.9J 1.8J 4.4J 11
MW-36 22-Sep-17 70J 0.32J 16 3.3J 18 1.3J 6.6J 20J 16
MW-36 (dissolved)22-Sep-17 NA NA NA NA NA NA NA NA NA NA NA NA 4.9J NA
MW-36d 18-Mar-11 98.4J 32.3 2J 32.5 4.8J 15.5J 1.73J 29.3 17.8
MW-36d (dup)18-Mar-11 88.4J 27.1 1.35J 27.3 2.51J 12.7 0.845J 24.5J 14.2
MW-36d 2-Nov-11 60.3J 10.2 12.0B 6.22J 11.1J 5.45J
MW-36d 26-Apr-12 53.7J 2.26J 10.5B 2.44J 2.23J 2.20J 4.59J
MW-36d 24-Oct-12 77.7J 18.4 1.59J 31.1 8.03J 19.8J 12.7
MW-36d 18-Apr-13 0.3J 80J 0.1J 12 2J 33 1J 0.02J 6J 0.08J 13J 7JB
MW-36d 17-Oct-13 60J 0.04J 3J 0.5J 10J 0.03J 3J 3J
MW-36d 17-Apr-14 0.4J 0.6J 70J 0.08J 0.2J 14 1J 50 0.9J 0.03J 8J 0.07J 30 14B
MW-36d 13-Nov-14 60J 0.05J 5J 0.9J 13 0.4J 4J 7J 5J
MW-36d 29-Apr-15 60J 0.1J 3J 0.4J 15 0.3J 0.03J 3J 6J 4J
MW-36d 15-Oct-15 0.2J 70J 0.07J 0.2J 9J 1J 24 0.7J 0.05J 5J 0.06J 18JB 11
MW-36d 20-Apr-16 0.5J 50J 5J 0.3J 10 0.2J 2J 33
MW-36d 14-Sep-16 52J 0.26J 2.3J 10B 4.1J 25 11B
MW-36d 20-Apr-17 52J 4.8J 2.2J 3.6J 3.9J
MW-36d 21-Sep-17 43J 2.4J 6.9J 1.9J 4.1J 8.6J
Notes:
1. All units are in micrograms per liter (parts per billion).
2. * - Groundwater Protection Standard
3. dup - Duplicate Sample
4. (4) - Monitoring wells MW-22, -30, -31, and TB-1a were not sampled during the September 2017 sampling event due to insufficient volumes of water in the wells.
5. J - Indicates the analytical result is an estimated concentration between the method detection limit and the Solid Waste Section Reporting Limit.
6. B - The analyte concentration detected in the method blank was greater than the method detection limit.
7. Monitoring wells MW-28, -28d, -33, -34, -34d, and -35 are sampled yearly during the spring event.
8. Dissolved metal samples were collected to evaluate the influence of turbidity on total metal concentrations as part of an ongoing Alternate Source Demonstration.
9. NA - Not Analyzed
- Concentration exceeds the 15A NCAC 02L .0202 or Groundwater Protection Standard.
- Indicates the result is below the detection limit.
Page 7 of 12 October 2017
Table 1b
Detected Groundwater Constituents - Volatile and Semi-Volatile Organic Compounds
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984
Monitoring Well CodeSample DateAcetoneBenzeneBromomethaneChlorobenzeneChloroethaneChloroformChloromethaneDibromochloromethane1,4-Dichlorobenzene1,3-Dichlorobenzene1,2-DichlorobenzeneDichlorodifluoromethane1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-Dichloroethene1,2-DichloropropaneEthylbenzeneMethylene ChlorideTetrachloroetheneTolueneTrichloroetheneTrichlorofluoromethaneVinyl Chloridem,p-Xyleneso-XyleneTotal Xylenesbis(2-ethylhexyl) Phthalate6,000 1 10**50 3,000 70 3 0.4 6 200 20 1,000 6 0.4 7 70 100 0.6 600 5 0.7 600 3 2,000 0.03 500 500 500 3
100 1 10 3 10 5 1 3 1 5 5 5 5 1 5 5 5 1 1 1 1 1 1 1 1 5 5 5 15
MW-11 17-Mar-11
MW-11 1-Nov-11
MW-11 25-Apr-12
MW-11 23-Oct-12
MW-11 17-Apr-13
MW-11 16-Oct-13
MW-11 16-Apr-14
MW-11 12-Nov-14
MW-11 30-Apr-15 0.54J
MW-11 15-Oct-15 0.28JB
MW-11 21-Apr-16
MW-11 1-Sep-16
MW-11 20-Apr-17
MW-11 22-Sep-17
MW-11d 18-Mar-11
MW-11d 2-Nov-11
MW-11d 26-Apr-12
MW-11d 24-Oct-12
MW-11d 18-Apr-13
MW-11d 17-Oct-13
MW-11d 17-Apr-14
MW-11d 13-Nov-14
MW-11d 29-Apr-15
MW-11d 15-Oct-15 0.24JB
MW-11d 21-Apr-16 1.3J 0.71J
MW-11d 1-Sep-16
MW-11d 20-Apr-17
MW-11d 22-Sep-17
MW-5R 16-Mar-11 2.1
MW-5R 31-Oct-11
MW-5R 24-Apr-12
MW-5R 22-Oct-12 0.67J
MW-5R 17-Apr-13 0.22J
MW-5R 16-Oct-13
MW-5R 16-Apr-14
MW-5R 12-Nov-14
MW-5R 30-Apr-15
MW-5R 15-Oct-15 0.49J 0.34JB
MW-5R 21-Apr-16
MW-5R 14-Sep-16
MW-5R 20-Apr-17
MW-5R 20-Sep-17 5.0J 2.7 3.4 1.1J 15 0.61J 0.72J 4.8
MW-6 16-Mar-11 3.4 1.3J 1.6 0.42J 1.3J 1.8
MW-6 1-Nov-11 3.6 1.1J 1.7 1.0J 0.95J
MW-6 24-Apr-12 0.7J 0.5J 0.5J 0.42J 0.56J
MW-6 22-Oct-12 4.6J 2.3 1.7J 1.3 2.5J 0.58J 1.4
MW-6 17-Apr-13 0.79J 1.7J 0.43J
MW-6 16-Oct-13 0.48J 3.0J 0.60J 0.57J
MW-6 (dup)16-Oct-13 8.2J 0.54J 3.0J 0.55J 0.54J
MW-6 16-Apr-14 0.52J 0.97J
MW-6 (dup)16-Apr-14 0.50J 1.0J
MW-6 12-Nov-14 1.1 0.25J 1.2J 1.3 0.80J
MW-6 30-Apr-15 0.48J 0.60J 1.2J
MW-6 14-Oct-15 0.62J 2.3J 0.50J
MW-6 20-Apr-16 0.45J 0.52J 3.0J
MW-6 (dup)20-Apr-16 0.38J 0.58J
MW-6 14-Sep-16 0.83J 1.5J
MW-6 20-Apr-17 0.82J 0.98J
MW-6 (dup)20-Apr-17 0.90J 1.2J
MW-6 21-Sep-17 0.83J 2.8J 0.61J 0.56J
MW-6d 16-Mar-11 0.91J 3.2J 0.49J
MW-6d 2-Nov-11 0.72J 1.5J 3.4J 0.43J
MW-6d 26-Apr-12 0.61J 0.53J 2.3J 0.40J 0.42J
MW-6d (dup)26-Apr-12 0.58J 2.3J 0.43J
MW-6d 23-Oct-12 0.77J 1.1J 3.0J 0.54J 0.48J 0.53J 0.52J
MW-6d 18-Apr-13 0.52J 2.3J 0.48J 0.3J 0.39J
MW-6d (dup)18-Apr-13 0.58J 2.4J 0.47J 0.39J 0.44J 0.36J
MW-6d 17-Oct-13 0.75J 1.8J 3.3J 0.65J 0.53J
MW-6d 17-Apr-14 0.42J 0.93J 0.28J
MW-6d 12-Nov-14 0.51J 1.5J 0.38J
MW-6d 30-Apr-15 0.30J 0.50J 0.87J 1.5JB 0.22J
MW-6d (dup)30-Apr-15 0.40J 0.83J 1.5JB
MW-6d 15-Oct-15 0.35J 0.37J 0.82J 0.25JB
MW-6d 20-Apr-16 0.51J 2.0J 0.35JB
MW-6d 12-Sep-16 0.41J 1.0J
MW-6d 20-Apr-17 0.51J 0.43J 1.5J 0.51J 1.6J
MW-6d 22-Sep-17 0.60J 0.71J 1.9J 0.49J
MW-7 16-Mar-11 1.8 1.6 0.74J 1.5
MW-7 2-Nov-11 7.6J 1.3 1.6 1.4
MW-7 26-Apr-12 120 0.66J 0.79J 0.49J
MW-7 22-Oct-12 15 0.75J 1.4 0.93
MW-7 16-Apr-13 0.66J 0.25J 1.2 1.2J
MW-7 16-Oct-13 0.81J 0.40J 1.5
MW-7 16-Apr-14 0.61J 0.52J 1.2 0.31J
MW-7 11-Nov-14 0.70J 0.57J 0.56J 1.2 0.32J 0.80J
MW-7 30-Apr-15 1.1 0.69J 2.7 2.8J 0.51J 0.59J 1.5JB 0.85J
MW-7 14-Oct-15 0.52J 0.69J 1.1
MW-7 20-Apr-16 0.83J 0.52J 2.2 0.46J 1.6J 1.5
MW-7 13-Sep-16 1.0 1.3J 1.6 0.42J 0.41J 0.60J
MW-7 18-Apr-17 0.74J 1.1J 1.4
MW-7 18-Sep-17 0.55J 0.94J 0.73J
Solid Waste Section Limit
North Carolina 2L or
Groundwater Protection
Standard
Page 8 of 12 October 2017
Table 1b
Detected Groundwater Constituents - Volatile and Semi-Volatile Organic Compounds
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984
Monitoring Well CodeSample DateAcetoneBenzeneBromomethaneChlorobenzeneChloroethaneChloroformChloromethaneDibromochloromethane1,4-Dichlorobenzene1,3-Dichlorobenzene1,2-DichlorobenzeneDichlorodifluoromethane1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-Dichloroethene1,2-DichloropropaneEthylbenzeneMethylene ChlorideTetrachloroetheneTolueneTrichloroetheneTrichlorofluoromethaneVinyl Chloridem,p-Xyleneso-XyleneTotal Xylenesbis(2-ethylhexyl) Phthalate6,000 1 10**50 3,000 70 3 0.4 6 200 20 1,000 6 0.4 7 70 100 0.6 600 5 0.7 600 3 2,000 0.03 500 500 500 3
100 1 10 3 10 5 1 3 1 5 5 5 5 1 5 5 5 1 1 1 1 1 1 1 1 5 5 5 15Solid Waste Section Limit
North Carolina 2L or
Groundwater Protection
Standard
MW-8 16-Mar-11 0.61J 17
MW-8 31-Oct-11 0.66J 14
MW-8 24-Apr-12 0.75J 23
MW-8 22-Oct-12 0.47J 0.40J 1.1J 25 0.65J 0.41J
MW-8 17-Apr-13 0.51J 0.23J 0.53J 0.77J 35 0.32J 0.47J
MW-8 16-Oct-13 0.48J 0.17J 0.47J 0.62J 37
MW-8 16-Apr-14 0.47J 0.67J 0.58J 39 0.40J
MW-8 12-Nov-14 0.50J 0.18J 0.54J 0.64J 48 0.32J
MW-8 30-Apr-15 0.84J 0.35J 1.1 0.94J 98 1.6JB 0.29J 0.64J 0.40J
MW-8 15-Oct-15 0.56J 0.27J 1.0 0.55J 64 0.44JB 0.54J
MW-8 21-Apr-16 0.70J 0.36J 1.4 0.74J 100 0.25J 0.45J
MW-8 14-Sep-16 0.53J 1.2 0.71J 61 0.72J
MW-8 20-Apr-17 0.49J 1.2 0.50J 48 0.61J 0.57J
MW-8 18-Sep-17 0.54J 1.4 0.44J 46 0.52J
MW-8d 18-Mar-11
MW-8d 2-Nov-11
MW-8d 26-Apr-12 0.42J
MW-8d 24-Oct-12 0.51J
MW-8d 18-Apr-13 0.36J
MW-8d 17-Oct-13 0.43J
MW-8d 17-Apr-14
MW-8d 12-Nov-14
MW-8d 30-Apr-15 0.38J
MW-8d 15-Oct-15 0.44J
MW-8d 21-Apr-16 0.60J
MW-8d 14-Sep-16 0.48J
MW-8d 20-Apr-17 0.50J
MW-8d 18-Sep-17
MW-8d (dup)18-Sep-17
MW-9 17-Mar-11 1.1 6 12 0.92J 13 0.61J 14
MW-9 1-Nov-11 1.3 5.9 11 11 12
MW-9 (dup)1-Nov-11 6.1J 1.0 1.3J 5.9 10 12 10
MW-9 25-Apr-12 1.8 8.1 9.8 15 0.68J 0.54J 0.47J 19
MW-9 23-Oct-12 2.0J 3.3J
MW-9 17-Apr-13 1.3J 2.1J
MW-9 16-Oct-13 2.0J 4.2J
MW-9 16-Apr-14 0.37J 0.25J 2.8J 6.4 0.36J
MW-9 12-Nov-14 2.3J 0.25J 5.3
MW-9 (dup)12-Nov-14 2.1J 4.6J
MW-9 29-Apr-15 2.1J 5.9
MW-9 15-Oct-15 0.42J 2.9J 8.6 0.25J 0.28JB
MW-9 20-Apr-16 0.29J 2.5J 0.27J 5.7 1.0
MW-9 13-Sep-16 2.7J 8.6
MW-9 19-Apr-17 2.3J 7.2
MW-9 21-Sep-17 1.8J 6.2
MW-10 17-Mar-11 3.3 1.1 4.2J 48 2.5 2.6 1.6
MW-10 31-Oct-11 3.2 1.4J 0.90J 4.9J 42 2.9 2.6 1.3
MW-10 25-Apr-12 10J 2.3 1 3.2J 44 2.9 2.5 1.4
MW-10 23-Oct-12 3.3 1.8J 1.3 5.3 52 0.41J 2.3 2.6 3.1
MW-10 17-Apr-13 3.2 0.23J 2.3 6.3 0.23J 39 0.21J 0.26J 4.7 6.1 0.18J
MW-10 16-Oct-13 1.1 0.17J 2.4 4.0J 23 2.1 3.0 0.76J
MW-10 16-Apr-14 1.4 0.68J 2.0 2.9J 24 2.6 2.5 0.16J
MW-10 12-Nov-14 1.5 1.0J 2.4 4.6J 0.24J 39 0.27J 10 12 3.9
MW-10 29-Apr-15 2.6 0.29J 2.6 2.4J 29 2.5 3.7 1.5
MW-10 14-Oct-15 1.2 0.36J 4.4 3.4J 0.34J 29 0.21J 3.0 3.3
MW-10 20-Apr-16 2.9 2.4 1.7J 0.31J 18 0.37JB 2.2 3.4 2.0 0.23J
MW-10 13-Sep-16 2.9 4.5 2.7J 25 1.6 1.3
MW-10 19-Apr-17 1.5 0.50J 6.7 0.56J 3.5J 0.50J 22 0.56J 4.9 1.9
MW-10 22-Sep-17 0.95J 4.6 2.6J 0.42J 7.1 1.0 3.4
MW-10d 18-Mar-11 2J 1
MW-10d 2-Nov-11 2.2J 0.92J
MW-10d 26-Apr-12 0.70J 2.2J 0.6J 0.52J 0.50J
MW-10d 24-Oct-12 0.55J 2.3J 0.47J 0.64J 0.67J 0.45J
MW-10d 18-Apr-13 2J 0.62J 0.57J 0.64J 0.36J
MW-10d 16-Oct-13 1.8J 0.56J 0.57J
MW-10d 17-Apr-14 1.8J 0.54J 0.70J 0.42J
MW-10d 12-Nov-14 2.0J 0.68J 0.25J 0.24J
MW-10d 30-Apr-15 0.56J 0.45J 1.7J 0.56J 1.9JB 0.61J
MW-10d 15-Oct-15 0.46J 1.4J 0.45J 0.55JB 0.42J 0.38J
MW-10d 21-Apr-16 0.51J 1.4J 0.39J 0.39J
MW-10d 14-Sep-16 1.5J 0.49J
MW-10d 19-Apr-17 0.59J 1.3J 0.45J 0.47J
MW-10d 18-Sep-17 1.1J
MW-22 18-Mar-11 0.79J
MW-22 1-Nov-11
MW-22 25-Apr-12
MW-22 23-Oct-12
MW-22 17-Apr-13
MW-22 16-Oct-13
MW-22 16-Apr-14
MW-22 12-Nov-14 5.9J
MW-22 30-Apr-15 0.43J
MW-22 15-Oct-15
MW-22 20-Apr-16 0.80J
MW-22 13-Sep-16
MW-22 19-Apr-17 Not sampled(4)
Page 9 of 12 October 2017
Table 1b
Detected Groundwater Constituents - Volatile and Semi-Volatile Organic Compounds
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984
Monitoring Well CodeSample DateAcetoneBenzeneBromomethaneChlorobenzeneChloroethaneChloroformChloromethaneDibromochloromethane1,4-Dichlorobenzene1,3-Dichlorobenzene1,2-DichlorobenzeneDichlorodifluoromethane1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-Dichloroethene1,2-DichloropropaneEthylbenzeneMethylene ChlorideTetrachloroetheneTolueneTrichloroetheneTrichlorofluoromethaneVinyl Chloridem,p-Xyleneso-XyleneTotal Xylenesbis(2-ethylhexyl) Phthalate6,000 1 10**50 3,000 70 3 0.4 6 200 20 1,000 6 0.4 7 70 100 0.6 600 5 0.7 600 3 2,000 0.03 500 500 500 3
100 1 10 3 10 5 1 3 1 5 5 5 5 1 5 5 5 1 1 1 1 1 1 1 1 5 5 5 15Solid Waste Section Limit
North Carolina 2L or
Groundwater Protection
Standard
MW-23 18-Mar-11
MW-23 2-Nov-11
MW-23 23-Apr-12
MW-23 24-Oct-12
MW-23 18-Apr-13
MW-23 16-Oct-13
MW-23 16-Apr-14
MW-23 12-Nov-14
MW-23 30-Apr-15
MW-23 15-Oct-15
MW-23 (dup)15-Oct-15
MW-23 20-Apr-16 0.72J
MW-23 13-Sep-16
MW-23 19-Apr-17
MW-23d 17-Mar-11
MW-23d 1-Nov-11
MW-23d 25-Apr-12
MW-23d 23-Oct-12
MW-23d 18-Apr-13
MW-23d 17-Oct-13
MW-23d 17-Apr-14
MW-23d 13-Nov-14
MW-23d 29-Apr-15
MW-23d 15-Oct-15
MW-23d 20-Apr-16 0.61J
MW-23d 13-Sep-16
MW-23d (dup)13-Sep-16
MW-23d 19-Apr-17 0.44J
MW-23d 21-Sep-17 3.4J
MW-24 18-Mar-11 13
MW-24 2-Nov-11 8.9
MW-24 26-Apr-12 7.3
MW-24 23-Oct-12 8
MW-24 17-Apr-13 8.7
MW-24 16-Oct-13 7.9
MW-24 16-Apr-14 6.2
MW-24 12-Nov-14 5.9
MW-24 29-Apr-15 6.0
MW-24 14-Oct-15 4.9J
MW-24 20-Apr-16 4.7J 0.46J
MW-24 13-Sep-16 3.8J
MW-24 19-Apr-17 4.3J
MW-24 20-Sep-17 3.6J
MW-28 18-Mar-11
MW-28 26-Apr-12 0.53J
MW-28 18-Apr-13 0.58J
MW-28 17-Apr-14 0.38J
MW-28 30-Apr-15
MW-28 21-Apr-16
MW-28 20-Apr-17
MW-28d 18-Mar-11
MW-28d 26-Apr-12 19J
MW-28d 18-Apr-13
MW-28d 17-Apr-14
MW-28d 30-Apr-15 0.29J
MW-28d 21-Apr-16
MW-28d 20-Apr-17
MW-29d 18-Mar-11 1.8J
MW-29d 1-Nov-11
MW-29d 26-Apr-12
MW-29d 24-Oct-12
MW-29d 18-Apr-13
MW-29d 17-Oct-13
MW-29d 17-Apr-14 28.5
MW-29d 13-Nov-14 0.23J 4.61J
MW-29d 29-Apr-15 6.7J
MW-29d 15-Oct-15 0.29JB 0.25J
MW-29d 21-Apr-16
MW-29d 12-Sep-16
MW-29d 19-Apr-17
MW-29d 22-Sep-17
MW-30 18-Mar-11
MW-30 1-Nov-11
MW-30 25-Apr-12
MW-30 23-Oct-12
MW-30 17-Apr-13
MW-30 16-Oct-13
MW-30 16-Apr-14
MW-30 12-Nov-14
MW-30 29-Apr-15
MW-30 15-Oct-15
MW-30 21-Apr-16
MW-30 14-Sep-16
MW-30 20-Apr-17
MW-30 22-Sep-17 Not sampled(4)
Page 10 of 12 October 2017
Table 1b
Detected Groundwater Constituents - Volatile and Semi-Volatile Organic Compounds
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984
Monitoring Well CodeSample DateAcetoneBenzeneBromomethaneChlorobenzeneChloroethaneChloroformChloromethaneDibromochloromethane1,4-Dichlorobenzene1,3-Dichlorobenzene1,2-DichlorobenzeneDichlorodifluoromethane1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-Dichloroethene1,2-DichloropropaneEthylbenzeneMethylene ChlorideTetrachloroetheneTolueneTrichloroetheneTrichlorofluoromethaneVinyl Chloridem,p-Xyleneso-XyleneTotal Xylenesbis(2-ethylhexyl) Phthalate6,000 1 10**50 3,000 70 3 0.4 6 200 20 1,000 6 0.4 7 70 100 0.6 600 5 0.7 600 3 2,000 0.03 500 500 500 3
100 1 10 3 10 5 1 3 1 5 5 5 5 1 5 5 5 1 1 1 1 1 1 1 1 5 5 5 15Solid Waste Section Limit
North Carolina 2L or
Groundwater Protection
Standard
MW-31 17-Mar-11 2.5J
MW-31 1-Nov-11 2.1J
MW-31 25-Apr-12 1.3J
MW-31 23-Oct-12 2.0J
MW-31 17-Apr-13 1.4J
MW-31 16-Oct-13 1.4J
MW-31 16-Apr-14 1.6J
MW-31 12-Nov-14 1.0J
MW-31 29-Apr-15 1.6J
MW-31 14-Oct-15 0.82J
MW-31 21-Apr-16 2.1J
MW-31 13-Sep-16 0.76J
MW-31 19-Apr-17 0.41J
MW-31 21-Sep-17
MW-31d 16-Mar-11 28
MW-31d 31-Oct-11 23
MW-31d 24-Apr-12 23
MW-31d 22-Oct-12 22
MW-31d 16-Apr-13 21
MW-31d 15-Oct-13 17
MW-31d 15-Apr-14 17
MW-31d 11-Nov-14 17
MW-31d 28-Apr-15 16
MW-31d 13-Oct-15 12
MW-31d 21-Apr-16 13
MW-31d 13-Sep-16 10
MW-31d 19-Apr-17 13
MW-31d 18-Sep-17 12
MW-32 17-Mar-11
MW-32 1-Nov-11
MW-32 25-Apr-12
MW-32 23-Oct-12
MW-32 17-Apr-13
MW-32 16-Oct-13
MW-32 16-Apr-14
MW-32 12-Nov-14
MW-32 29-Apr-15 0.41J
MW-32 14-Oct-15
MW-32 21-Apr-16
MW-32 13-Sep-16
MW-32 20-Apr-17
MW-32 22-Sep-17
TB-1a 17-Mar-11 2.5J
TB-1a 1-Nov-11 1.6J
TB-1a 25-Apr-12 0.9J
TB-1a 23-Oct-12 0.74J
TB-1a 17-Apr-13 0.70J
TB-1a 16-Oct-13 0.35J
TB-1a 16-Apr-14 0.45J 0.32J
TB-1a 12-Nov-14 0.60J
TB-1a 29-Apr-15 1.5J
TB-1a 15-Oct-15 0.45J 0.27JB
TB-1a 21-Apr-16
TB-1a 14-Sep-16 0.65J
TB-1a 20-Apr-17 0.42J
TB-1a 22-Sep-17
TB-1a deep 16-Mar-11 31
TB-1a deep 31-Oct-11 31
TB-1a deep 24-Apr-12 23
TB-1a deep 23-Oct-12 22
TB-1a deep 16-Apr-13 20
TB-1a deep 15-Oct-13 16
TB-1a deep 15-Apr-14 13
TB-1a deep 11-Nov-14 10
TB-1a deep 28-Apr-15 8.9 0.42J
TB-1a deep 14-Oct-15 4.9J
TB-1a deep 20-Apr-16 2.6J 0.41J
TB-1a deep 13-Sep-16 2.6J
TB-1a deep 19-Apr-17 2.7J 1.4J
TB-1a deep 22-Sep-17 1.9J
MW-33 16-Mar-11
MW-33 25-Apr-12
MW-33 17-Apr-13
MW-33 15-Apr-14
MW-33 29-Apr-15
MW-33 21-Apr-16
MW-33 20-Apr-17
MW-34 17-Mar-11 0.89J 10 11 11 2.2 3.4
MW-34 26-Apr-12 0.60J 0.62J 0.60J 1.2 1.8J 14 9 7.6 2.2 3.3 0.92J
MW-34 17-Apr-13 0.56J 0.60J 0.52J 1.1 1.8J 13 9.1 7.6 2.1 2.6 0.70J 0.19J
MW-34 15-Apr-14 0.50J 0.99J 0.41J 1.0 1.4J 14 7.5 4.1J 1.0 2.2 0.59J
MW-34 29-Apr-15 0.85J 0.35J 0.51J 0.65J 1.5 1.7J 18 0.34J 10 7.2 1.3 3.0 0.64J 1.7J
MW-34 21-Apr-16 0.77J 0.71J 1.9 2.0J 17 0.30J 11 6.4 2.3 1.0J
MW-34 20-Apr-17 0.75J 0.65J 1.4 2.6J 13 0.51J 12 9.3 2.4 2.9 1.2
Not sampled(4)
Not sampled(4)
Page 11 of 12 October 2017
Table 1b
Detected Groundwater Constituents - Volatile and Semi-Volatile Organic Compounds
September 2017 Semi-Annual Sampling Event
North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984
Monitoring Well CodeSample DateAcetoneBenzeneBromomethaneChlorobenzeneChloroethaneChloroformChloromethaneDibromochloromethane1,4-Dichlorobenzene1,3-Dichlorobenzene1,2-DichlorobenzeneDichlorodifluoromethane1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-Dichloroethene1,2-DichloropropaneEthylbenzeneMethylene ChlorideTetrachloroetheneTolueneTrichloroetheneTrichlorofluoromethaneVinyl Chloridem,p-Xyleneso-XyleneTotal Xylenesbis(2-ethylhexyl) Phthalate6,000 1 10**50 3,000 70 3 0.4 6 200 20 1,000 6 0.4 7 70 100 0.6 600 5 0.7 600 3 2,000 0.03 500 500 500 3
100 1 10 3 10 5 1 3 1 5 5 5 5 1 5 5 5 1 1 1 1 1 1 1 1 5 5 5 15Solid Waste Section Limit
North Carolina 2L or
Groundwater Protection
Standard
MW-34d 16-Mar-11 1.7J 1.6J 0.43J
MW-34d 25-Apr-12 0.77J 0.93J
MW-34d 16-Apr-13 0.83J 1.1J
MW-34d 15-Apr-14 0.46J 0.99J 3.4J 2.7J 0.96J 0.58J 0.76J 0.75J
MW-34d 28-Apr-15 0.27J 0.42J 0.65J 0.70J 3.1J 2.3J 2.1J 0.54J 0.67J 0.38J
MW-34d 21-Apr-16 0.79J 0.66J 2.0 2.1J 17 0.33J 10 6.1 2.3 1.1
MW-34d 20-Apr-17 0.49J 1.0J 3.1J 2.9J 0.78J 0.72J 0.85J 0.59J
MW-35 17-Mar-11
MW-35 25-Apr-12
MW-35 17-Apr-13 0.53J
MW-35 16-Apr-14 0.25J
MW-35 29-Apr-15 0.44J 0.62J 0.27J
MW-35 20-Apr-16 0.88J 0.39J 0.41J
MW-35 20-Apr-17 1.6J 0.62J 0.61J 1.2
MW-36 17-Mar-11 1.1 9.1 6.3 0.47J 1.7 0.8J
MW-36 1-Nov-11 0.86J 8.9 4.3J 1.1
MW-36 25-Apr-12 5.5 3.3J 0.74J
MW-36 23-Oct-12 5 2.9J 0.66J
MW-36 (dup)23-Oct-12 5.4 2.8J 0.67J
MW-36 18-Apr-13 0.18J 3.7J 2.3J 0.42J
MW-36 16-Oct-13 3.8J 2.5J
MW-36 16-Apr-14 3.1J 2.1J 0.26J 0.37J
MW-36 12-Nov-14 3.5J 2.5J
MW-36 30-Apr-15 0.46J 2.8J 2.3J 0.23J
MW-36 15-Oct-15 2.4J 2.1J 0.37JB 0.25J
MW-36 20-Apr-16 1.8J 2.1J
MW-36 13-Sep-16 4.5J 4.3J
MW-36 20-Apr-17 2.4J 2.6J
MW-36 22-Sep-17 2.4J 3.1J
MW-36d 18-Mar-11 1.4J 8.8 5.2 1 1.0 1.7
MW-36d (dup)18-Mar-11 1.2J 8.9 5.1 1.1 1.1 1.7
MW-36d 2-Nov-11 1.4J 9.2 4.0J 0.89J 1.0 1.4
MW-36d 26-Apr-12 0.53J 1.4J 8 4.0J 0.86J 1.3
MW-36d 24-Oct-12 0.45J 0.56J 1.3J 7.6 3.8J 0.58J 0.68J 1.3
MW-36d 18-Apr-13 0.25J 7.1 4.0J 0.54J 0.73J 1
MW-36d 17-Oct-13 0.26J 0.63J 1.7J 7.9 5.5 0.63J 1.1
MW-36d 17-Apr-14 5.7 4.6J 0.68J 0.87J
MW-36d 13-Nov-14 0.54J 0.44J 0.66J 0.53J 6.4 5.5 0.72J 7.9 10
MW-36d 29-Apr-15 0.75J 0.54J 6.7 6.5 2.1J 0.64J 0.87J
MW-36d 15-Oct-15 0.37J 4.8J 4.7J 0.62J 0.33J 0.68J
MW-36d 20-Apr-16 0.67J 3.9J 0.25J 4.9J 0.56JB 0.40J
MW-36d 14-Sep-16 0.69J 5.5 5.8 0.54J 0.50J 0.63J
MW-36d 20-Apr-17 0.62J 5.4 5.9 0.43J 0.59J 0.63J
MW-36d 21-Sep-17 1.2J 1.3J
Notes:
1. All units are in micrograms per liter (parts per billion).
2. ** Groundwater Protection Standard
3. NS - Not Sampled; NE - Standard Not Established; dup - Duplicate Sample
4. (4) - Monitoring wells MW-22, -30, -31, and TB-1a were not sampled during the September 2017 sampling event due to insufficient volumes of water in the wells.
5. J - Indicates the analytical result is an estimated concentration between the method detection limit and the Solid Waste Section Reporting Limit.
6. B - The analyte concentration detected in the method blank was greater than the method detection limit.
7. Monitoring wells MW-28, -28d, -33, -34, -34d, and -35 are sampled yearly during the spring event.
- Concentration exceeds the 15A NCAC 02L .0202 or Groundwater Protection Standard
- Indicates the result is below the detection limits.
Page 12 of 12 October 2017