WI0500293_APPLICATION TO RENEW PERMIT_20131003

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Draper Aden Associates - D
UMEngineering • Surveying • Environmental Services
8090 Villa Park Drive
Richmond,Virginia 23228
[phone] • Fax[phone]
www.daa.com
RECEIVEDIDENRIDWQ
TO: Mr. Gordon Dively(PE)
Orange County Solid Waste Management (`.T 0 3 2013
FROM: Leonard 'Rip' Ford,Jr. (PhD, PG) ,er. Aquifer Pro C ion Sectionc PoS
Environmental Services Division s
n f ►-ry
DATE: 09-27-13
SUBJECT: Orange County Regional Landfill: North (Closed)Facility
Groundwater Injection Program-Hydrogeochemical Assessment
NC Permit No. 68-01
DAA Project No. R00592-140
On behalf of OCSWM, Draper Aden Associates prepared an application to renew a permit
to inject potassium permanganate into the groundwater in selected areas of the North landfill. In
electronic mail correspondence from NCDENR to DAA (August 29, 2013), NCDENR stated, "An
examination of the groundwater monitoring data appears to indicate a correlation between
permitted injection activity and constituent concentrations exceeding the 2L Groundwater Quality
Standards. This condition is in violation of the injection rules under which the permit was issued,
and prohibits us from reissuing the permit. We are therefore requesting an opportunity to meet with
you to discuss the situation and work with you to develop an alternate remedial strategy." In a
follow-up message, NCDENR stated, "The two substances of concern are the metals manganese
and possibly mercury."
In order to better understand NCDENR concerns with the injection program, and to prepare
for a meeting with NCDENR personnel, Draper Aden Associates reviewed historical trends in, and
relationships between, concentrations of selected volatile organic compounds, injection byproducts
(K,Mn), selected water quality parameters(ORP,pH), and selected metals(chromium,mercury), as
derived from groundwater samples obtained from four wells (MW-21S, MW-21D, MW-23, MW-
24). Results of the subject hydrogeochemicaI assessment are summarized herein.
Salient observations concerning hydrogeochernical conditions in well MW-21S and MW-21D are
summarized as follows:
■ Concentrations of cis-1,2-dichloroethene (DCE) in MW-21 S appear to have been increasing
systematically prior to the first injection event. Subsequent to the first injection event,
concentrations of cis-1,2-DCE in MW-21S appear to have decreased systematically, and the
trend is statistically significant.
Blacksburg, Virginia • Charlottesville, Virginia • Hampton Roads, Virginia • Richmond, Virginia

i
Mr. Gordon Dively
September 27,2013
Page 2 of 13
Conversely, subsequent to the first injection event, concentrations of cis-1,2-DCE in MW-
21D appear to have decreased for a while,.then increased.
Maximum concentrations of vinyl chloride in MW-21S were observed during 2009.
Subsequent to the first injection event, concentrations of vinyl chloride in MW-21S appear
to have decreased, and the trend is statistically significant.
We conclude that the injection of permanganate has had a measurable beneficial effect at
MW-21 S, but does not appear to have significantly affected the concentrations of volatile
organic compounds in MW-21D.
• Subsequent to the first injection event, concentrations of manganese in MW-21S appear to
have decreased(through November, 2012), and the trend is statistically significant. Given
that potassium permanganate was injected in groundwater, a decrease in manganese over
the period of interest is contrary to prediction.
• Subsequent to the first injection event, ORP values in MW-21 S reveal no trend, whereas
ORP values in MW-21D appear to have been increasing, and the increase is statistically
significant. The observed trends in ORP are the opposite of what one would expect with the
injection of permanganate (a strong oxidant), and appear to be inconsistent with the
observed trends in concentrations of volatile organic compounds (which tend to reveal
greater reductions in the shallow well, than in the deep well).
N Subsequent to the first injection event, concentrations of chromium in MW-21S appear to
have increased very abruptly after June, 2012; however, the next two values are statistical
outliers, and may be,deemed suspect. After removing the two outliers, no trend can be
discerned.
- Subsequent to the first injection event, concentrations of chromium in MW-21D appear to
have increased after June, 2012; however, the next value is a statistical outlier. Upon
removing the one outlier,the increase is statistically significant.
An increase in the concentration of chromium would be consistent with an increase in ORP;
however, the observed trends in both ORP and chromium (considered jointly) appear to be
inconsistent with the observed trends in concentrations of volatile organic compounds
(which tend to reveal greater reductions in the shallow well,than in the deep well).
• Based upon a review of the available information, we conclude that the injection of
potassium permanganate has had a modestly beneficial effect at MW-2IS, but has not had a
measurable effect in MW-21D (which is screened at a deeper interval). The minimal effect
may be attributed to the relatively low hydraulic conductivity of the uppermost aquifer in the
vicinity of the injection well. In addition, groundwater at the injection point may not flow
directly toward the target wells.
1

Mr. Gordon Dively
September 27, 2013
Page 3 of 13
Salient observations concerning hydrogeochemical conditions in well MW-23 and MW-24 are
summarized as follows:
■ Concentrations of tetrachloroethene (PCE) in MW-23 appear to have been relatively stable
prior to the first injection event. Subsequent to the first injection event, concentrations of
tetrachloroethene in MW-23 appear to have been decreasing;however,the apparent trend is
not statistically significant if the relatively low value of 0.73 is retained(it was not classified
as an outlier),but become significant if 0.73 is removed from the dataset.
• • Concentrations of cis-1,2-dichloroethene (DCE) in MW-23 appear to have reached
maximum values prior to the first injection event. Subsequent to the first injection event,
concentrations of cis-1,2-DCE in MW-23 appear to have been decreasing systematically,
and the trend is statistically significant.
■ Subsequent to the first injection event, concentrations of manganese in MW-23 appear to •
have been increasing (through June, 2012), and the trend is statistically significant. An
increase in manganese over the period of interest is consistent with the injection of
permanganate.
Subsequent to the first injection event, concentrations of manganese in MW-24 appear to
have been increasing (through November, 2012), and the trend is statistically significant.
, An increase in manganese over the period of interest is consistent with the injection of
permanganate.
i k During the first sampling event subsequent to the first injection event, the concentration of
manganese in MW-24 was nearly 10 times its concentration in MW-23 and about 3.5 times
its NCGQS (50). Given that MW-24 is approximately 80 feet downgradient from MW-23,
we suggest that the observed trends in manganese in both wells may be unrelated to the
injection of permanganate.
• Subsequent to the first injection event, ORP values in MW-23 appear to have been
increasing (conspicuously), and the trend is statistically significant. The observed trend is
consistent with the injection of permanganate.
Subsequent to the first injection event,pH values in MW-23 appear to have been decreasing
(conspicuously), and the trend is statistically significant.
We observe an inverse relationship between pH and ORP in MW-23, subsequent to the first
injection event(correlation coefficient=-0.66).
__ ■ Subsequent to the first injection event, concentrations of chromium in MW-23 appear to
have been increasing rapidly, and the trend is statistically significant.
Subsequent to the first injection event, concentrations of chromium in MW-24 appear to
have been increasing slowly, and the trend is statistically significant; however, post-
injection maxima are comparable to pre-injection levels.
_

Mr. Gordon Dively
September 27,2013
Page 4 of 13
'
•
An increase in the concentration of chromium would be consistent with an increase in ORP.
Given that MW-24 is approximately 80 feet downgradient from MW-23,we suggest that the
observed trend in chromium in well MW-24 may be unrelated to the injection of
permanganate.
■ Based upon a review of the available information, we conclude that the injection of
} potassium permanganate has had a significant beneficial effect at MW-23, but has not had a •
• measurable effect in MW-24.
■ The greater reduction in volatile organic compounds at well MW-23, compared to the
minimal reduction of concentrations of volatile organic compounds at MW-21S, may be
attributed to the relatively higher hydraulic conductivity of the uppermost aquifer in the
vicinity of the injection well near well MW-23, and the shorter distance between the
injection point and the target well.
1.0 INTRODUCTION
Toward assessing the efficacy of the injection of potassium permanganate into the groundwater, we
reviewed the historical concentrations of four organic constituents of concern (tetrachloroetlrene,
1,1-dichloroetliarre, cis-1,2-dichloroethene, vinyl chloride) in four groundwater monitoring wells
(111W 21S,MW 2ID,MW-23,MW-24).
Selected sequences of historical data, subsequent to the first injection event, were subjected to
Dixon's Outlier Test, at three significance levels (10%, 5%, 1%).
After removing outliers (if any), selected sequences of historical data, subsequent to the first
injection event,were subjected to a Mann-Kendall Trend Test, at one significant level (5%).
Conditions in MW-21S and MW-21D were evaluated separately from conditions in MW-23 and
MW-24.
2.0 MW-21 S + MW-21 D
Hydrogeochemical conditions in well MW-21S and MW-21D are summarized as follows:
•
Tetrachloroethene(PCE) •
MW-21S
0.65 is an outlier-removed from dataset(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
MW-21D
[not tested]

Mr. Gordon Dively
September 27,2013
Page 5of13
Assessment. Concentrations of tetrachloroethene in MW-21S appear to have been relatively
stable prior to the first injection event. Subsequent to the first injection event,
• concentrations of tetrachloroethene in MW-21S appear to have decreased; however, the
apparent trend is not statistically significant.
Concentrations of tetrachloroethene in MW-21D appear to have been relatively stable prior
to the first injection event. .
• 1,1-dichloroethane(1,1-DCA)
MW-21S
no outliers(Di(on's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
MW-21D
[not tested]
Assessment. Concentrations of 1,1-DCA in MW-21S appear to have been decreasing
systematically prior to the first injection event. Subsequent to the first injection event,
concentrations of 1,1-DCA in MW-21S appear to have continued decreasing; however, the
apparent trend is not statistically significant.
Concentrations of 1,1-DCA in MW-21D appear to have been decreasing systematically
prior to the first injection event.
• cis-1,2-dichloroethene(cis-1,2-DCE)
MW-21S
no outliers(Dixon's test)
statistically significant evidence of a decreasing trend
MW-21D
[not tested]
W y Assessment. Concentrations of cis-1,2-DCE in MW-21S appear to have been increasing
systematically prior to the first injection event. Subsequent to the first injection event,
concentrations of cis-1,2-DCE in MW-21S appear to have decreased systematically, and the
trend is statistically significant.
Concentrations of cis-1,2-DCE in MW-21D appear to have been increasing systematically
prior to the first injection event. Subsequent to the first injection event, concentrations of
cis-1,2-DCE in MW-21 D appear to have decreased for a while,then increased.

Mr. Gordon Dively
September 27,2013
Page 6 of 13
• vinyl chloride(VC)
MW-21S
2.4 is an outlier-removed from dataset(Dixon's test)
statistically significant evidence of a decreasing trend
MW-21D
[not tested]
Assessment. Maximum concentrations of vinyl chloride in MW-21S were observed during
2009. Subsequent to the first injection event, concentrations of vinyl chloride in MW-21S
appear to have decreased,and the trend is statistically significant.
Concentrations of vinyl chloride in MW-21D appear to have been relatively stable prior to
the first injection event. Subsequent to the first injection event, concentrations of vinyl
_ chloride in MW-21D appear to have decreased for about a year, then increased.
• potassium •
MW-21S
no outliers (Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
MW-21D
983 is an outlier-removed from dataset(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
Assessment. Subsequent to the first injection event, concentrations of potassium in MW-
21 S and MW-21D reveal no apparent trends.
• manganese
MW-21S
no outliers (Dixon's test)
statistically significant evidence of a decreasing trend through November,2012
MW-21D
317, 103,44 are outliers-removed from dataset(Dixon's test)
[not tested] •
Assessment. Subsequent to the first injection event, concentrations of manganese in MW-
- 21 S appear to have decreased (through November, 2012), and the trend is statistically
significant. A decrease in manganese over the period of interest is contrary to prediction.

Mr. Gordon Dively
September 27,2013
Page 7 of 13
Subsequent to the first injection event, concentrations of manganese in MW-21D appear to
have remained relatively stable.
• oxidation-reduction potential(ORP)
MW-21S
no outliers(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
MW-21D
no outliers (Dixon's test)
statistically significant evidence of an increasing trend
Assessment. Subsequent to the first injection event, ORP values in MW-21S reveal no
trend, whereas ORP values in MW-21D appear to have been increasing, and the increase is
statistically significant. The observed trends in ORP are the opposite of what one would
expect with the injection of permanganate, and appear to be inconsistent with the observed
trends in concentrations of volatile organic compounds (which tend to reveal greater
reductions in the shallow well,than in the deep well).
• acidity(pH)
MW-21S =
5.25 is an outlier-removed from dataset(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
MW-21D
•
[not tested]
Assessment. Subsequent to the first injection event,pH values in MW-21S reveal no trend.
Subsequent to the first injection event, pH values in MW-21D follow the same pattern as
those observed in MW-21S,but were slightly lower.
• chromium
MW-21S
88.8 and 17.8 are outliers-removed from dataset(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
a _

Mr. Gordon Dively
September 27,2013
Page 8 of 13
- MW-21D •
21.6 is an outlier-removed from dataset(Dixon's test)
statistically significant evidence of an increasing trend
Assessment. Subsequent to the first injection event, concentrations of chromium in MW-
218 appear to have increased very abruptly after June, 2012; however, the next two values
are statistical outliers, and may be deemed suspect. After removing the two outliers, no
trend can be discerned.
Subsequent to the first injection event, concentrations of chromium in MW-21D appear to
have increased after June, 2012; however, the next value is a statistical outlier. Upon
removing the one outlier,the increase is statistically significant.
An increase in the concentration of chromium would be consistent with an increase in ORP.
The North Caroline Groundwater Quality Standard for chromium is 10 (=2L Standard). •
• mercury
MW-21S - •
no outliers (Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
MW-21D
•
7.8 is an outlier-removed from dataset(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
Assessment Concentrations of mercury in MW-21S prior to injection are comparable to
concentrations of mercury in MW-21 S subsequent to the first injection event.
Once the outlier is removed from MW-21D, concentrations of mercury in MW-21D prior to
injection are comparable to concentrations of mercury in MW-21D subsequent to the first
injection event.
Historically, concentrations of mercury in MW-21D have been greater than concentrations
of mercury in MW-21 S.
The North Caroline Groundwater Quality Standard for mercury is 1 (=2L Standard).
Concentrations of mercury in both MW-21 S and MW-21D have exceeded the NCGQS both
before and after injection.

I Mr. Gordon Dively
September 27,2013
Page 9 of 13
3.0 MW-23 + MW-24
, Hydrogeochemical conditions in.well MW-23 and MW-24 are summarized as follows:
• tetrachloroethene(PCE)
MW-23
4.4 is an outlier-removed from dataset(Dixon's test)
statistically significant evidence of a decreasing trend
•
MW-24
[not tested]
Assessment. Concentrations of tetrachloroethene in MW-23 appear to have been relatively
stable prior to the first injection event. Subsequent to the first injection event,
i l concentrations of tetrachloroethene in MW-23 appear to have been decreasing; however,
' the apparent trend is not statistically significant if the relatively low value of 0.73 is retained
' (it was not classified as an outlier), but become significant if 0:73 is removed from the
- dataset.
•
• 1 1-dichloroethane 1 1-DCA .
MW-23
no outliers(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
r MW-24-
no outliers (Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
Assessment. Concentrations of 1,1-DCA in MW-23 appear to have been decreasing prior to
the first injection event. Subsequent to the first injection event, concentrations of 1,1-DCA
in MW-24 appear to have been increasing,but the trend is not statistically significant.
Concentrations of 1,1-DCA in MW-24 appear to have been decreasing prior to the first
injection event.

Mr. Gordon Dively
September 27,2013
Page 10 of 13
• cis-1,2-dichloroethene (cis-1,2-DCE)
MW-23
no outliers (Dixon's test)
statistically significant evidence of a decreasing trend
MW 24
[not tested]
Assessment. Concentrations of cis-1,2-DCE in MW-23 appear to have reached maximum
values prior to the first injection event. Subsequent to the first injection event,
concentrations of cis-1,2-DCE in MW-23 appear to have been decreasing systematically,
and the trend is statistically significant.
Concentrations of cis-1,2-DCE in MW-24 appear to have reached maximum values prior to •
the first injection event. Subsequent to the first injection event, concentrations of cis-1,2-
DCE in MW-24 appear to have remained stable.
• vinyl chloride(VC)
MW-23
no outliers (Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
MW-24
[not tested]
Assessment. Concentrations of vinyl chloride in MW-23 appear to have been stable, or
perhaps decreasing,prior to the first injection event. Subsequent to the first injection event,
concentrations of vinyl chloride in MW-23 appear to have been increasing,but the apparent
trend is not statistically significant.
• potassium
MW-23
no outliers(Dixon's test)
insufficient evidence to identify a.significant trend(Mann-Kendall)
MW-24
651 is an outlier-removed from dataset(Dixon's test)
insufficient evidence to identify a significant trend(Mann-Kendall)
•

Mr. Gordon Dively
September 27, 2013
Page 11 of 13
Assessment. Subsequent to the first injection event, concentrations of potassium in MW-23
appear to have been increasing (during certain events), but the apparent trend is not
statistically significant
• manganese
MW-23
267 is an outlier-removed from dataset(Dixon's test)
statistically significant evidence of an increasing trend through June, 2012
MW-24
no outliers(Dixon's test)
statistically significant evidence of an increasing trend through November,2012
Assessment. Subsequent to the first injection event, concentrations of manganese in MW-
23 appear to have been increasing (through June, 2012), and the trend is statistically
significant. An increase in manganese over the period of interest is consistent with the
injection of permanganate.
Subsequent to the first injection event, concentrations of manganese in MW-24 appear to
- have been increasing'(through November, 2012), and the trend is statistically significant.
An increase in manganese over the period of interest is consistent with the injection of
permanganate.
During the first sampling event subsequent to the first injection event, the concentration of
manganese in MW-24 was nearly 10 times its concentration in MW-23 and about 3.5 times
its NCGQS (50). Given that MW-24 is approximately 80 feet downgradient from MW-23,
we suggest that the observed trends in manganese in both wells may be unrelated to the
injection of permanganate.
• oxidation-reduction potential (ORP)
MW-23
no outliers (Dixon's test)
statistically significant evidence of an increasing trend
Assessment. Subsequent to the first injection event, ORP values in MW-23 appear to have
been increasing (conspicuously), and the trend is statistically significant. The observed
trend is consistent with the injection of permanganate.

Mr. Gordon Dively
September 27, 2013
• Page 12 of 13
•
•• acidity(pH) •
MW-23
5.32 and 6.21 are outliers-removed from dat2set(Dixon's test)
statistically significant evidence.of a decreasing trend
Assessment. Subsequent to the first injection event, pH values in MW-23 appear to have
been decreasing(conspicuously), and the trend is statistically significant.
• acidity(pH)versus ORP
Assessment. We observe an inverse relationship between pH and ORP in MW-23.
Subsequent to the first injection event, as ORP increased over time, pH decreased. The R2.
value shown on the graphs is intended to represent the degree to which the line fits the data,
and does not imply that ORP is dependent upon pH(regression). The correlation coefficient
for the relationship is-0.66.
•
• chromium
MW-23
no outliers (Dixon's test)
-
statistically significant evidence of an increasing trend
MW-24 .
no outliers (Dixon's test)
statistically significant evidence of an increasing trend
Assessment. Subsequent to the first injection event, concentrations of chromium in MW-23
r- appear to have been increasing rapidly,and the trend is statistically significant.
Subsequent to the first injection event, concentrations of chromium in MW-24 appear to
have been increasing slowly, and the trend is statistically significant; however, post-
' injection maxima are comparable to pre-injection levels.
An increase in the concentration of chromium would be consistent with an increase in ORP.
The North Caroline Groundwater Quality Standard for chromium is 10(=2L Standard).
1`
•

Mr. Gordon Dively
September 27, 2013
Page 13 of 13
• mercury
MW-23
3.07 is an outlier(Dixon's test)
insufficient evidence to identify a significant trend (Mann-Kendall)
MW-24
[not analyzed]
Assessment. Subsequent to the first injection event, concentrations of mercury in MW-23
appear to have increased, initially, then decreased; however, after removing the one outlier,
the apparent trend is not significant.
The North Caroline Groundwater Quality Standard for mercury is 1 (=2L Standard).
Concentrations of mercury in MW-23 appeared to exceed its NCGQS for a while,
subsequent to the first injection event, then decreased to less than its NCGQS (the one
statistical outlier being considered unreliable).
•
4.0 CONCLUSIONS
Based upon a review of the available information, we conclude that the injection of potassium
permanganate has had a modest beneficial effect at MW-21 S, but has not had a measurable effect in
1 MW-21D (which is screened at a deeper interval). The minimal effect may be attributed to-the•
relatively low hydraulic conductivity of the uppermost aquifer in the vicinity of the injection well.
hi addition, groundwater at the injection point may not flow directly toward the target wells.
Based upon a review of the available information, we conclude that the injection of potassium
permanganate has had a significant beneficial effect at MW-23, but has not had a measurable effect
in MW-24(which is about 80 feet downgradient of MW-23).
The greater reduction in volatile organic compounds at well MW-23, compared to the minimal
reduction on concentrations of volatile organic compounds at MW-21S, may be attributed to the
relatively higher hydraulic conductivity of the uppermost aquifer in the vicinity of the injection well
near well MW-23,and the shorter distance between the injection point and the target well.
Attachments: data tables
MW-21 S +MW-21D (graphs+statistical analyses)
MW-23 +MW-23 (graphs+statistical analyses)
additional information
cc: Mr. Gayle Wilson (OCSWM- Chapel Hill)
Mr Ervin Lane (NCDENR)
Mr. David Goodrich (NCDENR)

ATTACHMENT I
DATA TABLES
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CLIENT: THE COUNTY OP ORANGE
FACILITY: ORANGE COUNTY REGION .LA.43p(U.-NORTH FACILITY
LOCATION: CHAPEL HILL,.z t#Tklt',GAROLINA
f' PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
ORGANIC CONSTITUENTS
MW-15 MW-15 MW-17 MW-20 MW-21d MW-21s MW-22 LOC SWSL QA/QC
1,1-dichioroethane 04,17100 -5.0 <5,0
MCL-♦ 07/11/91 <5.0 <5.0
FBAC=5(SWSL) 05/28/92 54 <5.0 <5.0
NCGQS=6(2L Std) 06/30/93 39.6 <5.0 <5.0
L Ste.70(pre-Jan.2010) 11/04/94 43 6 <5.0 <5.0
2L Ste-6(Jan.2010) 12/20/94 20 <5.0 <5.0 <5,0
02/02/95 28 <5.0 <5.0 <5.0
03/13/95 32 J <5.0 <5.0 <5.0 cc
11/15/95 38 6 <5.0 <5.0
07/25/96 72 8 <5.0 <5.0
02/25/97 57 12 <5.0 <5.0
09/03/97 71 9 <5.0 <5.0
05/04/98 56 10 <5.0 <5.0
11/02)98 67 9 <5.0 <5.0
04/28/90 52 9 <5.0 <5.0
11/22/99 45 9 <5.0 <5.0
05/23/00 48 9 <5.0 <5.0 24 42 <5.0
11/29/00 49 9 <5.0 <5.0 42 36 <5.0
06/05/01 42 7 <5.0 <5.0 25 35 <5.0
11/13/01 49 J 10 J <5.0 <5.0 41 J 33 J <5.0 cc
06/04/02 31 J 7 J <5.0 <5.0 22 J 20 J <5.0 cc
03/12/03 30 J 9 J <5.0 <5.0 24 J 14 J <5.0 I ht
06/18/03 30 J 8 J <5.0 <5.0 22 J 22 J <5.0 ic,cc,ss
12/08/03 26 J 5 J <5.0 <5.0 22 J 20 J <5.0 ic,cc
06122/04 36 J 6 J <5.0 <5.0 25 J 24 J <5.0 ic,cc
11(30/04 19 J <5.0 <5.0 <5.0 16 J 8 J <5.0 ic,cc
06/01(05 26 5 <5.0 <5.0 19 18 <5.0
11/02(05 31 9 <5.0 <5.0 28 25 7
05/22/06 19 6 <5.0 <5.0 20 20 7
11/27/06 19 5 <5.0 <5.0 17 17 7
06/12/07 18.7 5.6 <0.2 <0.2 16.2 15,4 3.7 J 25.7 0 2 5
12/12/07 17 5.6 <0.2 <0.2 12.2 8.5 4.9 J 23.4 0.2 5
06/17(08 11 J 5.2 J <0.2 <0.2 13J 13.3J 3.1 J 26.2 J 3.4J 0.2 5 ic,cc
11/05(08 11.7 3.7 J <0.2 <0.2 13.2 13.1 0.6 J 25.6 18.6 0.2 5
05/19/09 17 5.2 <0.33 <0.33 16 16 5 27 21 0.33 5
11/18/09 14 5.6 <0.33 <0.33 14 14 7 30 19 0.33 5
06/21110 i 1 3.9 J <0.05 <0.05 11 9.9 4.8 J 16 13 0.05 5
11/18/10 12 4.6 J <0.33 <0.33 15 13 7.2 28 19 0.33 5
injection even)(03-29-11) 05/23/11 7.8 2.7 J <0.08 <0.08 10 9 6 21 11 0.08 5
08123l11 13 14 27 15 0.08 5
injection event(09-26-11) 11/15/11 9 3.2 J <0.08 <0.08 8.6 10 6 21 14 0.08 5
02/21/12 ':: 11 13 27 12 0.13 5
injection event(04-1412) 06/05/12 8 1 0.56 J <0.13 l <0.13 9.3 6.6 5 22 12 0.13 5
9.2 12 ' i 21 16 0,13 5
injection event(09-13-12) 11/12/12
10/09/12
<0.13 I <013 9.9 8.5 7 21 16 0.13 5
8 2 3 J
02/18/13 ; , .:;..... : ;fl 11 9.2 [ 24 17 0.13 5
05/13/13 9,1 2.5J <0.13 <0.13 11 10 7.1 22 14 0.13 5
08/21/13 j;: :' : 9.7 1i j 20 14 0.13 5

CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONAL LANDFILL-NORTH FACILITY
LOCATION: CHAPEL HILL NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM f,
HISTORY.OF;CHHEMICAL ANALYSIS
ORGANlC:dQNSTITUENTS
Sample
Constituent MW-15 MW-16 MW-17 MW-20 MW-218 MW-2is MW-22 MW-23 MW-24 LOD SWSL QA/QC
vinyl chloride 04/17/9U ,.1,J 0 <;0.0
MCL=2 07/11/91 <10.0 <10.0
FBAC=1(SWSL) 05/28192 <10.0 <10.0 <10.0
NCGQS=0.03(2L Stq) 00/30/93 <10.0 <10.0 <10.0
2L SW•0.016(pre-Jan.2010) 11,04/94 <10.0 <10.0 <10.0 26
2L SW-0.03{Jan.2010} 12/20194 <10.0 <10.0 <10,0 <10.0 02/02/95 <10.0 <10.0 <10.0 20
03/13/95 <10.0 <10.0 <10.0 20
11/15/95 <10.0 <10.0 <10.0 13 J is
07/25/96 <10.0 <10.0 <10.0 43 J cc
02125/97 <10.0 <10.0 <10.0 11
09/03/97 10 R <10.0 <10.0 15
05/04/98 <10.0 <10.0 <10.0 10
11/02/98 <10.0 <10.0 <10.0 11 I
04/26/99 <10.0 <10.0 <10.0 <10.0
11/22/98 <10.0 <10.0 <10.0 17
05/23/00 <10.0 <10.0 <10.0 10 <10.0 <10-0 <10.0
11/29/00 <10.0 <10.0 <10.0 12 <10.0 <10.0 <10,0
06/05/01 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
11/13/01 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
06/04/02 10 J <10.0 <10.0 10 J <10.0 <10.0 <10.0 Sr
03/12/03 17 J <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 ht
06/18/03 14 J <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 ic,cc,ss
12/08/03 13 J <10.0 <10.0 <10.0 <10.0 <10,0 <10.0 lc,cc
06/22/04 12 J <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 ic,cc
11/30/04 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
06/01/05 16 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
11/02/05 15 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
05/22/06 <10.0 <10.0 <10-0 <10.0 <10.0 <10.0 <10.0 !
11/27/06 22 <10.0 <10.0 <10,0 <10.0 <10.0 <10.0
06/12/07 13.1 3.9 <0,1 2.4 4 1.2 0.7J 4 0,1 1
12/12/07 16.5 2.1 <0.1 2 2.4 0.4 J 0.97 J 4.4 0.1 1
06/17)08 12.8 J 4J <0.1 1.8 J 3.4J 1J 0.7 J 2.9 J 0.3J 0.1 1 ic,cc
11/05/08 14.6 2 <0.1 1.5 3.5 2.5 <0,1 3.4 3.3 0.1 1
05/19/09 12 2.3 <0.3 0.6 J 3.2 2.9 0.78 J 2.7 1.6 0.3 1
11/18/09 12 3.4 <0.3 0.94 J 3.6 2.9 1.6 4.8 2.5 0.3 1
06/21/10 8.7 1.9 <0.083 0.69 J 2.8 1.8 0.7 J 1.6 0.82 J 0,083 1
11/18/10 13 2.3 <0.3 0.79 J 3.6 0.56 J 1.2 4.7 1.9 0.3 1
injection event(03-29-11) 05/23/11 8.2 1.1 <0.8 <0.6 2.6 1.2 <0.6 2.4 <0.6 0.6 1
08123/11 3.3 2.4 3.6 1.€ 0.6 1
injection event(09-28-11) 11/15/11 i0 1.4 <0.6 <0.6 1.7 <0.6 1.2 1.6 1.5 0.6 1
02/21/12 :_ -i :: . : ......... 2.9 1 {;'. ;,:; 2.fi 1 0.32 1
injection event(04-14-12) 05/05/12 9.7 <0,32 <0,32 <0.32 <0.32 <0.32 <0.32 <0.32 <0.32 0.32 1
10/09/12 , '' " ;; <0.32 0.96J .,..;,',. Li 0,32 1
injection event{09-13-12) 11/12112 '4'.' 4.2 <0.32 0.62 J 1.2 <0.32 1.4 <0.32 1.6 0,32 1
02/18/13 1.4 <0.32 2 0.32 1
05/13/13 12 1.3 <0.32 <0.32 2.2 <0.32 1.2 0.78 J <0.32 0.32 1
081211t3 :. ...... . ... ... . ., i.3 <0.32 € 0.72 J 0.54J 0.32 1

CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONAL LANDFILL -NORTH FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
BYPRODUCTS OF GROUNDWATER REMEDIAT1ON
Constituent Sample Date MW-15 MW-16 MW-210 MW-21S MW-23 MW-24 LOD
,
carbon dioxide 03/22/11 55,500 29,100 9,070 16,300 2,000
MCL= • 05/23/11 130,000 95,900 343,000 65,100 1,300
FBAC= ♦ 08/23/11 207,000 131,000 92,200 74,400 1,300
NCGQS= • 11/15/11 204,000 123,000 114,000 89,800 1,300
06/05/12 195,000 70,900 34,200 78,600 270
11/12/12
05/13/13 112000 46,700 87,800 6'90
chloride 03/22/11 44,000 50,000 58,000 56,000 1,900
MCL= ♦ 05/23/11 44,000 39,000 56,000 48,000 94
FBAC= ♦ 08/23/11 47,000 39,000 80,000 51,000 1,900
NCGQS=250000 (2L Std) 11/15/11 42,000 41,000 80,000 53,000 1,900
06/05/12 53,000 38,000 76,000 54,000 430
11/12/12 50,000 37,000 81,000 60,000 1,900
05/13/13 61,000 46,000 78,000 62,000 1,900
manganese 03/22/11 13.6 J 88.7 19.5 J 184 1.1
MCL= ♦ 05/23/11 15.6 J 60.8 36.9 J 230 1.1
FBAC=50(SWSL) 08/23/11 10.9 J 44.9 J 21.8 J 311 1.1
NCGQS=50 (2L Std) 11/15/11 44 J 22.4 J 97 287 1.1
SWSL=50 06/05/12 17.8 J 33.3 J 112 405 1.1
11/12/12 317 11.1 J 267 382 1.1
05/13/13 103 143 50.6 150 1.1
potassium 03/22/11 709 978 820 778 150
MCL= • 05/23/11 702 670 528 780 150
FBAC= ♦ 08/23/11 983 681 687 779 150
NCGQS= • 11/15/11 691 833 1,300 774 150
06/05/12 770 798 718 872 150
11/12/12 779 869 1,560 833 150
05/13/13 647 665 536 651 150
All results in fegli.
Shaded cells indicate data not available.
Blue bolded cells indicate concentrations that exceeded the FBAC.
Red bolded cells indicate concentrations that exceeded the:NCGQS,
Greenbolded cells indicate concentrations that were>LOD but SWSL.
• -limits not established
FBAC-facility background NCGQS-groundwater standard,as established by NCDENR
SWSL-solid waste section limit,as established by NCDENR >-groundwater protection standard

CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONML LANDFILL-NORTH FACILITY
LL><G 1110N: CHAF1:LttHILL,NORTH CAROLINM
PF2O T GROUNOWAT E:MONITORING PROGRAM
HISTORY OF CHEMICAL ANMLYSIS
iNDICA TOR PARAME1?,RS
Constituent Sample Date MW-15 MW-16 MW-21S MW.210 MW-23 MW-24�
pH(standard units) 06/22/10 7.06 6.90 7.54 NM
11/19/10 7.15 6.19 6.21 NM
03/23/11 6.03 5.94 7.18 11.9
05/23/11 6.92 6.68 7.12 NM
08/23/11 5.25 5.38 5.32 NM
11/15/11 6 C5 r 01 6.87 6.66 6.75 NM
02/21/12 7.00 6.79 6.97 NM
06/05/12 6.95 6.67 6.99 NM
11/12/12 6.96 6.47 6,70 NM
05/13/13 6.55 6.39 6.75 NM
b i
,�.q��;� 6.67 � 6.41 6.75
0.60 0.46 0.61 :
ORP(meV) 06/22/10 37.7 76.6 24.7 NM
11/19/10 41.9 92.5 28.0 NM
03123111 228.0 209.0 71.0 106
05/23/11 62.1 45.2 14-0 NM
08/23/11 64.0 123.0 76.1 NM
11/15/11 :if 7 - 124.0 119.4 431.0 NM
02/21/12 87.0 70.0 69.1 NM
06/05/12 66.8 84.4 498.0 NM
11/12/12 52.7 424.0 548.8 NM
05/13/13 151.0 217.0 198.0 NM
average m 91 5 146.1 195.9
I
standard deviation= 59.9 113.0 212.8 <,1::
I
Temperature(degrees C) 06/22/10 15.8 15.0 14.9 NM
11/19/10 16.2 15.1 16.2 NM
03/23/11 12.1 14.6 13.5 11.9
05/23/11 14-2 14.9 14.6 NM
08/23/11 16.3 15-3 16.1 NM
11/15/11 16.83 16,07 16.7 15.4 16.5 NM
02/21/12 " 13.7 14-8 14.5 NM
06/05/12 15.7 14.9 14.8 NM
11/12/12 16.6 15.4 16.6 NM
05/13/13 • • 1 13.3 14.8 13.9 NM
•
average? 15.1 15.0 15.2
standard deviation= 1.6 0.3 1.1

� CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONML LANDFILL.-NORTH FACILITY
LOCATION: CHAPEL HILL,NORTH CAROLINM
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANMLYSIS
li)DICAT€R PARAMETERS
Constituent Sample Date M1+V-15 �® (I111-210 a"W 24
Specific Conductance(mS/cm) 06122l10
0.795 0.839 0.476 NM
11/19/10 0.752 0.936 0.709 NM
03/23/11 0.793 0.871 0.601 0.763
05/23/11 0.843 0.941 0.641 NM
08/23/11 0.848 0.980 0.826 NM
11/15/11 0 987 c=22 0.681 0.758 0.726 NM
02/21/12 0.800 0.928 0.828 NM
06/05/12 0.821 0.970 0.756 NM
11/12/12 0.888 1.019 0.910 NM
05/13/13 ii.ii. 0.901 1.007 0.721 NM
average= 0.812 0.925 0719
standard deviation ; 0.065 0.081 0.125
Dissolved Oxygen WO 06/22/10 6 14,6 13.2 NM
11/19/10 27.5 14.6 7.4 NM
03/23/11 59.2 12.8 10 31.6
05/23/11 91.5 98 1.1 NM
05/23/11 - 8.5 40.6 5.4 NM
11/15/11 18 17 58,5 9.2 6.6 NM
02/21112 6.4 2 5.9 NM
06/05/12 28.3 10 3.6 NM
11/12/12 53,9 72.4 16.7 NM
05/13/13 13-5 80-9 4.4 NM
aver ge= 35.34 35.51 7.43 31.60
standard deviation= 1 29.07 35.29 4.68
turbidity(NTU) 06/22/10 19.6 5.9 7.1 NM
11/19/10 23 1 5 NM
03/23/11 1 N M
05/23/11 5 2 NM
08/23/11 3.1 NM
11/15/11 2.7 7.1 2.44 NM
02121/12 15 7.1 3.3 NM
06/05/12 15.2 6.2 2.8 NM
11/12/12 - 3 1.6 NM
05/13/13 . . 2.2 1.3 NM
lave rage= '8 26 ' 56 3.54
standard deviation= . 0 1 88
lAll values are last recorded immediately prior to sample collection.
03-23-11-parameters remeasured one day after sampling;suspect faulty meter during sampling
INM M-Not Meat 1red;well sampled with Hydrasleeve. II

MIA
CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY:REGtONAL LANDFILL-NORTH FACILITY
LOCATION: CHAPE{gt.L,NORTH CAROLINA
PROJECT: GROUNDWATER MONiTOR1NG PROGRAM
HISTORY OF CHEMICAL ANALYSIS
INORGANIC CONSTITUENTS'. TOTAL METALS
Ggf►$tIMrent SamPla i MW 1 . MW-4 MW-5 MW-5 MW-6R MW-7 MW-7R i:1W-13 MW-14A ` MW148 LOD SWSL QAJOC
Date
r-
chromiur7l 04/17/00 <20 <20 <20 <20 <20
MCL W 100 07111/91 <20 <20 <20 <20 <20
FBAC=10(SWSL) 05128/92 <20 <20 <20 <20 • <20 a20 <20 <20
NCGQS=10(2L Sid) 06/30/93 <20 <20 i <2C <20 <20 <20 <20
2L Sta=50(pro-Jan.2010) 11104/94 25 <10 24 <10 10.0 B <10
2L Std=10(Jan.2010) 12/20194 <10 <10 48 <10 <10 <10
02/02/95 <10 <10 <10 <10 <10 <10
03/13/95 <10 <10 ..10 <10 22.7 <10 <10 <10
11/15/95 <10 <10 12 <10 - 58 <10 <10 <10
07/25/96 13 B <10 11 B <10 <10
02/25/97 <10 <10 ! .:1C <1C CC 6 <10 <10 <10
09/03/97 <10 <10 <10 <10 <10
05/04/98 <10 <10 1 G 1 0 22 7 <10 <10 <10
11/02/98 <10 <10 <10 <10 <10
04/26/99 <10 <10 <10 <10 <10
11/22/99 <10 <10 <10 <10 <10
1)5/23/00 <10 <10 -10 <1 C ---1 C. <10 <10 <10 tq
11/29/00 <10 <10 <10 <10 <10 i,f,q
06/05/01 <10 <10 1 C 13 B I <10 <10 <10 cc,t,f
11/13/01 <10 <10 <10
06/04/02 .....::: <10 <10 <10 i'i
03/12/03 <10 15 <10 <10
06/18/03 <10 i <10. -10 <10 <10 i
12/08/03 <10 <10 <10
06/22/04 <10 <10 <10
11/30/04 <10 <10 <10
06/01/05 <10 • <10 <10
11/02/05 <10 <10 <10
05/22/06 <10 <10 <10
11/27/06 <10 <10 <10
06/12/07 5.9 JB 33.5 6 JB <0.7 0,7 I 10 t,f
12/12/07 •'07 C.3J 14,E 0.7 10 i
03/06/08 • G: 4.3 J i 0.7 10
08712/08 0.6.JB 0-7 JR 4,8 J <'0 7 4-G JR 13 JD 0.7 10 t
09/20/08
0.7 10
11105/08 <0 7 28.6 2 4 JR 2 1 J551 5 6 JP, <C.7 0.7 10 t,f
05/19/09 0.9 J 3.7 J <0.7 <4-7 1.9 J 2.7 J 0.7 10
11/18/09 <1 <1 <1 <1 <1 <1 1 10 i
08/21/10 4.74 J <1 3.54 J <1 <1 <1 1 10
11/18/10 2.9 J <1 1.33 J <1 <1 <1 1 10
05/23/11 1.99J 6.1J 1.63J 1.53J 2.39J 4.44J 1 10
11/15/11 <1 1.34 J <1 2.69 J 3.38 J 1 10
06/05/12 2.81J 7.57J 1.86J 3.84J 5.02J 1 10
11/12/12 <1 9.18 J <1 1.72 J 2.53 J 1 10
05/13/13 <1,4 <1-4 <1.4 <',.4 .114 14 ' 10
08/21/13

1----- _ - .. -
CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONAL LANDFILL-NORTH FACILITY
LOCATION: CHAPEL HILL,NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL Af,SEAi,y tS
INORGANIC CONSTITUENTS: T.C37 'METAL$
Sample 1
Constituent M11W.4 1%1W-4 MW-5 MW-6 1 MW-6R MW-7 MW-7R ' MW-13 MW-14A MMMW-1461 I LOD SWSL O4fCDC
Date
mercury a. 04/17190 <0.2 ' <0.2 <0.2 <0.2 <0.2
MCL=2 07/11/91 <0.2 <0.2 0.58 0.3 <0.2 -0,2
FBAC•0.2(SWSL) 05/28/92 <0.2 <0.2 -02 <0.2 <0.2 <0.2 <0.2 <0.2
NCGQS=1(2L Sid) 06/30/93 <0 2 <0.2 <0.2 <0.2 <0 2 <0.2 <0.2
2L std=1.05(pre.Jan.2010) 11/04/04 - -
2L 51d=1(Jan.2010) 12/20/94
02102J95
03/13195
11/15/95
07/25/90
02/25/97 0 <C 5 -:0 C 5 •C
09/03/97
05/04/98 '
11/02/98 <0.2 •<0 2 0.2 <0.2 0.2
04/26/99 <0.2 <0.2 0.7 B <0.2 di
11/22/99 <0.2 <0,2 0.5 B <0.2 <0.2 I
05/23/00 <0.2 0.6 J •0 2 0.3 J <0.2 0.5 J d,cc
11/29/00 <0.2 <0.2 <0 2 <02 <0.2 d
06/05/01 <0,2 0.3 0.9 <0.2
11/13/01
06/04/02 <0.2 .,<, . <0,2 -0.2
03/12/03 <0.2 <0.2 <0.2 <0.2
06/18103 <0.2 0 2 <0.2 <0.2 <0.2
12/08/03 <0.2 <0.2 <0.2 i
06122/04 <0,2 <0.2 <0.2 '
11/30/04 <0.2 <0.2 <0.2
06/01/05 <0.2 <0.2 <0.2
11/02/05 <0.2 <0.2 <0.2
05/22/06 <0.2 <0.2 <0.2
11/27/06 <0.2 } <0.2 <0.2
06/12/07 <0.01 0.04 J j <0.01 <0.01 0.01 0.2
12/12/07 is 02 JB <0.01 -<0.01 0.01 0,2 i
03/06/08 <0.01 0.01 0.2
06/12/08 0-1 JB 0-04 JB • 0.06 JB - • <0.01 0-02 'SE) 0.01 0.2 f
11/05/08 0,14 JB <0.01 0.16 JB 0.04 JB <0.01 <0.01 0.01 0.2 f,i
05/19/09 <0.05 <0.05 0.35 <0.05 <0.05 <0.05 0.05 0.2
11/18/09 <0.054 0.117 J 0.805 <0.054 <0.054 <0.054 0.054 0.2
06/21/10 i <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2
11/18/10 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2
injection event(03-29-11) 05/23/11 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0 2
08/23/11
injection event(09-28-11) 11/15/11 <0.'7 i <0 17 5 ,, 0.17 0.17 0.17 C.2
02/21/12 I i
injection event(04-14-12) 06/05/12 <0'7 ,C.-7' 0.17 0.17 C '.- C2
1 0109112
injection event(09-13-12) 11/12/12 <0.17 <0.17 •:0 17 <0.17 -=0.17 0.17 0.2
02/18/13 017 0,17 0.21 05/13/13 0.:7 <0."7 -0 'r <0.17
06/21/13 I I I I 0,17 0.2
I

VIII
CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONAL LANDFILL-NORTH FACILITY
LOCATION: CHAPEL HILL,NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM ...., , ::
i H15T0_RV:Q1 CHEMICAL.AItFALY`SIS
INRRGATa(C'.G TITUENT5 TOTALMETALS
V
constomeRt Sample Date 1 MW-15 MW-IC MW-17 MVV-20 MW 210 NIW-21S fiW-22 PAW-23 MW-24 LOD SWSL QANQC
-
mercury.... .......... ............. -
A 04/17/90
MU.2 07/11/91 0 2 -0 2
FBAC=0.2(SWSL) 05/28/92 .o:' o:2 •C 2 I
NCGOS=1(2L Std) 06/30/93 -t;:::'
2L Std m 1.05(pre-Jan.2010) 11/04/94 - 1
2L Std=1(Jan.2010) 12/20/94
02/02/95 - I
03/13/95
11/15/95
07/25/96 •.C,5
02/25/97 .,.
09/03/97 I
05/04/98
11/02/98 0.5 <0.2 <0.2 <0.2
•
04/26/99 0.6 B 0.2 8 0.3 B 0,3 B d,i
11/22/99 0.3 8 0,3 B <0.2 <0.2 i
05/23/00 0.5 J <0.2 0.6 J 0.4 J d,cc
11/29/00 <0,2 <0.2 0.4 J <0.2 d
06/05/01 <0.2 <0,2 <0,2 1.0
11/13/01
06/04/02 -0.2 •'0.2 <0.2 <0 2 --0:2 <0.2
03/12/03 <0,2 <0.2 <0.2 <0.2 1.0 <0.2 <0.2
06/18/03 <0.2 <0.2 <0.2 <0.2 0.6 <0.2 <0.2
12/08/03 <0.2 <0,2 <0.2 <0.2 0.5 <0.2 <0.2
06/22/04 <0,2 <0.2 <0.2 <0.2 1.1 <0.2 <0.2
11/30/04 <0.2 <0.2 <0.2 <0.2 1.1 <0,2 <0.2
06/01/05 <0.2 <0.2 <0.2 <0.2 0.6 <0.2 <0.2
11/02/05 <0.2 <0.2 <0.2 <0.2 3.6 <0.2 <0.2
05/22/06 <0.2 <0.2 <0.2 <0.2 1.9 <0.2 <0.2
11/27/06 <0.2 <0.2 <0.2 <0.2 1.48 0,48 <0.2
06112/07 <0.01 <0.01 <0.01 <0.01 1.8 0.33 <0.01 0.74 0-01 0.2
12/12)07 <0.01 0.04 JB <0.01 <0.01 3.2 0:':-.,i _Cc..i-. 0.01 0.2 i
0 3/06/08 .......!_':I 0.01 0.2
06/12/08 0.14 JB 0.17 JB 0.08 JB 0.09 JB 1.8 0-37 Cc 0'IC,lls 0.6 B 0.01 0.2 f
11/05/08 0.18 JB 0.08 JB <0,01 <0.01 2.2 0.12 JB <0.01 0.613 0.12 JB 0.01 0.2 f,i
05/19/09 <0.05 <0.05 <0.05 <0.05 2.16 0.81 <0.05 0.06 J <0.05 0.05 0.2
11/18/09 <0.054 <0.054 <0.054 <0.054 3.3 1.59 <0.054 0.482 <0,054 0.054 0.2
06/21/10 <0.17 <0.17 <0.17 <0.17 1.9 2.7 <0.17 <0.17 <0.17 0.17 0.2
11/18/10 <0.17 <0.17 <0.17 <0.17 3.13 1.64 <0.17 0.755 <0.17 0.17 0.2
injection event(03-29-11) 05/23/11 <0.17 <0.17 <0.17 <0.17 1.77 1.52 <0.17 0.344 <0.17 0.17 0.2
06/23/11 ......,.' E::;:; :.,.:;. 2.23 2.37 `: :.:.:'; 1.48 <0.17 0.17 0.2
injection event(09-28-11) 11/15/11 <0.17 <0.17 <0.17 <0.17 2.95 0.748 <0.17 1.74 <0.17 0.17 0.2
02/21/12 :<:'
injection event(04-14-12) 06/05/12 <0,17 <0,17 <0.17 <0.17 0.981 0A07 <0.17 0.652 <0.17 0.17 0.2
10/09/12
injection event(09-13-12) . 11/12/12 <0.17 <0.17 <0.17 <0.17 7.8 1.34 <0.17 3.07 <0,17 0.17 0.2
02/10/13 ;} .,,
05/13/13 <0.17 <0.17 <0.17 <0.17 2.1 1.25 <0.17 0.417 <0.17 0,17 0.2
08/21/13 `....,;„„ ;J 3.11 0.732 ..... ::...:;;. 0.535 <0-17 0.17 0.2

I'
ATTACHMENT 2
MW-21 S + MW-21 D
GRAPHS

tetrach loroethene includes estimated(J)values
0.9
0.8 - .................. . . _.._.. _ .......... f ......... .....
• •
0.7 - • • - • ..._..._....................... ., . •. - _
•
0.6 — • t• \
a
•
a
a •
�a i
2
+- r
C I
CI
• i • !
C
u 0.4 - ..... .
• •
0.3 - .... I.
• ................. ._. ..-....._ .. ................
0.1 - ♦ • • ..._.._......_ ..........
injection event 1: 03-29-11
0 1 s i 1 I I I I I i i i 1 1 I 1
�,��\off ,`y'\o� o`yd\\o� y`oh\o� �`yo\oa �`yCb\oo o1�N\tio �\,e 4`�,\,> \,,\,�ti y\y_\,�ti tiSti-,\�� o\o<,\,cti o\°o\titi �1',\�ti \ye h\ ,\
tip
o ti o ti o ti o ti o o ti o o ' ti o 0
MW-21s BMW-21d
date sampled

Lt
1,1-d ich I o roeth a n e includes estimated(1)values
45
•
•
40 - -— -
injection event 1: 03-29-11
35
30
.n
a. •
c
° 25 • •
f4 •
eu
•
c
• •
/1\
u 20 - • •
• •
•
•
• No. r no trend(MW-215)
15 A
•.•'• \ •
10 •Or. • ,.. •
\ \ii.,
• • .
..
•
* * 414P.
..„
S 1
," °\° e\°�3\°y Q\°�ti\°� �,\°� q0'' ti\° e NP ;IP ti\°° \°° ti\°� !)0 �1°�4,\°�' °\°� $\°) 'e F\�° ek '">'e .- �\ti''.,\ti' y\'�ti5)'e ". >
o) y,Y 00 ti,�\ti°°\° o�\ti 00' y,�\° o°\ti NyN'y w. Nyti\o 0C) NyNr 00.' �ti\6 00'� 1ti\° cs), y.>.ti 60 yti\ti oh\ti 0;5 �,�\ti oI\ti 00' h°\° K,)\' °,�\ti o '
BMW-21s 0MW-21d
date sampled

cis-1,2-dichloroethene includes estimated(J)values
40
•
35 - • ..r
• • '
•
• •
I •
•
•
0.
C •
0
.7 • •
Y • •
C •
O
u
•
•
•
injection event 1: 03-29-11
5
decreasing trend(MW-21S)
0 1 1 1 I I 1 I I I I 1 I 1 1 1 1 I I 1 I 1 t I I I f 1 1 I 1 1
,)\°°a\°°4\°ti„,\'Z)'t\°�'e19 416))�\°'' \°°`o\°°` ,\°`')19,1\°�,1\°`O \°� ,ti\°� ,1\°`"46b \d) co\°P ,\ti° \ti°,5\�y,,\N'''4,\titi ti\tip'h\�ti \titi,ti�ti�\ti?'0,\ti'�
o�\ti�v\ & N>\ o°\° CC))\ e '')/ e ''y\'� oD\ y'' 0`'\ti'c" °°\ti'0/ o�\ti'\> o<\ti' \ o1\ti'lY Oc' Ocb ')'ti° ' oD' N°\° yti\ti°,/\\°h\ti
$MW-21s BMW-21d
date sampled

vinyl chloride includes estimated 0)values
4.5
injection event 1: 03-29-11
4 - • ..............
•
•
3.5 • _.. ...
...
•
•
•
3 - - -- 7.. ...--- --- -.. ........... -
•
a
n.
C •
2.5 - • , ................ ......................... ....,-
no •
C
aJ
V •
C
0
2 -
•
1.5 - ........ .L.
•
•
1 - •. 4,
0.5 - -- -----. 'r
decreasing trend(MW-21S)
• • ♦ •
0 i I f I 1 I I I i i , i I I i I
\��o� \��\o� Co .�\ob \oh\ow \��\oo \yam\o� \�y\�o �\y�\tio \��\titi \��\tip \y�\titi \may\titi �,o�\titi o\o�\titi \yam\titi \y$\' \yam\tip
o , o , o ti o o o ti o o ti ti o 0
—MW-21s —0-MW-21d
date sampled

OCSWM North landfill - potassium (MW21S + MW-21D)
1000 --
not an outlier(Dixon)
950
900
850
no trend through May 2013
m 800
cu
750
700
outliers removed
650
injection event 1: 03-29-11 no trend through May 2013
600
03/22/11 05/23/11 08/23/11 11/15/11 06/05/12 11/12/12 05/13/13
tMW-21S BMW-21D date sampled

OCSWM North landfill - manganese (MW21S + MW-21D)
160
not an outlier(Dixon)
140
injection event 1: 03-29-11
120 _.
100
Q.
c _
0
80
decreasing trend through November,2012
v
0
V
6o
- NCGQS
.. 1
40
20 •
-
outliers removed
0 -
03/22/11 05/23/11 08/23/11 11/15/11 06/05/12 11/12/12 05/13/13
f-MW-215 —10—MW-21D date sampled

OCSWM North SLF- ORP (MW-21S + MW-21D)
450
•
400
350
injection event 1: 03-29-11
300
w 250
E
•
200
150
• 4 INI im
100 -
0
•
♦ ♦ ♦
50 •
♦
0
06/22/10 11/19/10 03/23/11 05/23/11 08/23/11 11/15/11 02/21/12 06/05/12 11/12/12 05/13/13
--MW-215 -MW-21D date sampled

OCSWM North SLF - pH (MW-21S+ MW-21D)
8.0
7.5
injection event 1: 03-29-11
♦
•
7.0 •
•
•
• • •
6.5 •
c '
+ •
0
6.0 •
•
5.5 , \•'
•
- 1
5.0
06/22/10 11/19/10 03/23/11 05/23/11 08/23/11 11/15/11 02/21/12 06/05/12 11/12/12 05/13/13
BMW-21S MW-21D date sampled

OCSWM North - chromium (MW-21S + MW-21D)
100
90
•outlier
injection event 1: 03-29-11
80
70
a 60
0-
0
m 50 &
I
C
V
C
0
" 40
30
outlier
20
•
outlier
NCGQS=10
10 -- - -
i s
increasing trend(MW-21D)
0 ^ V no significant trend
" [ I I
05/19/09 11/18/09 06/21/10 11/18/10 05/23/11 11/15/11 06/05/12 11/12/12 05/13/13
.MW-215 --BMW-21D date sampled

OCSWM North - mercury (MW-215 + MW-21D)
9
8
*outlier
7
injection event 1: 03-29-11
6
3 5
Q.
a
O
f4 4
u
O
♦ ♦ * no significant trend(MW-21D)
3 •
#
• t
2 NCGQS=1 • ♦ f •
•
♦ i • • •
0
0
1 ♦ • ♦ .� ......
♦ •♦ • no significant trend(MW-21S)
IP —
1 1 1 1 , 1 i I 1 I I I I I I 1 1 I 1 f 1
�\oo \oo oy \oy t`o�ti\o3 \o�%`o� `ot o\a? `o( \C \o)o \ono `0' \4A \o� \o� `o) \oa `o0 `tio `tio `titi `titi `tip `titi `YA `titi `�1 `A ti3
ti ' p` \ti\ti(c,\o o,)\ti o�Q\ �ti�o oo�titi11\3 o�\oti ti\o-d<.)\ ti `titi �1 ��oo ��' 4' h`tioy�`tib 4)/ titic' �`� '' `'o,��1'' °`o�� o011,yti 1`ti'4
BMW-21S BMW 21D date sampled

1 �
ATTACHMENT 3
MW-21 S + MW-21 D
STATISTICAL ANALYSES

A B C D E I F I G I H L I 1 J _ K I L
1 Outlier Tests for Selected Variables _ _____-- — _
2 User Selected Options -__._________ ____ -_ __
3 From File C:\Userslrford\DesktoplOCSWM North-stets-organic.wst r — -_-— - __
• 4 Full Precision OFF _______
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1 _ _ --
` ' 7 - i-- -
9 Dixon's Outlier Test for PCE MW-21S 1
-1- --- - -
11 Number of data=8 I -- - -
- r
12-10%critical value:0.479 i
-' 5%critical value:013 .554 r - '
• 14-1%critical value:0.683
15 i
16 1. Data Value 0.65 is a Potential Outlier(Upper Tail)?
17 --___ ----- --
j 18 Test Statistic:0.504 -_ - -
_1--.-- -
20 For 10%significance level,0.65 is an outlier. - E '
21 For 5%significance level.0.65 is not an outlier. T—'-
For 1%significance level.0.65 is not an outlier. I
22 ______1..
- 1 - ._.... � - -
23 _ I _ -- - a-_
24-2.Data Value 0.085 is a Potential Outlier(Lower Tail)? YI 1
--
25 -1-
_+ -
26 Test Statistic:0.000 I
_27 _ _ --
28 For 10%significance level,0.085 is not an outlier. — -
• 29 For 5%significance level,0.085 is not an outlier. - I - -
i - - -
30-For 1%significance level,0.085 is not an outlier. _- �- ! -- -
�__. __
i 31 I 1 `
1
i
I
1
I
I

A I B I CI D E I F I GI H I J J K L
Outlier Tests for Selected Variables
1
2 User Selected Options
3 From File C:lUserslrford\DesktoplOCSWM North-stets-organic.wst
4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
-- - -
9 Dixon's Outlier Test for PCE MW21 S(less 0.65)
1
0 Number of data=7 - I _-- �I -- j... -
r - - - r i-
12 10%critical value:0.434
13 5%critical value:0.507
14 1%critical value:0.637
----_
15
L`' 16 1. Data Value 0.365 is a Potential Outlier(Upper Tail)? i I
17
' 18 Test Statistic:0.000 j I
----i ------ r --
19
20 For 10%significance level,0.365 is not an outlier.
21 For 5%significance level,0.365 is not an outlier. i -1-
22 For 1%significance level,0.365 is not an outlier.
23
24 2. Data Value 0.085 is a Potential Outlier(Lower Tail)? — -
_-
25 — —-- --- -- -- r
26 Test Statistic:0.000 i
27
28 For 10%significance level,0.085 is not an outlier. I
29 For 5%significance level,0.085 is not an outlier.
30 For 1%significance level,0.085 is not an outlier.
— u
31
•
i •
I ,

I A j B j C D I E F G I H I I 1 J K I L
1 Mann-Kendall Trend Test Analysis
- ' User Selected Options _n
2 _ __
3 DaterTime of Computation 9/24/2013 2:20:16 PM . -
4 1 - 1From File C:1Userslrford\DesktoplOCSWM North-stets-organic.wst — _M ��
ty; --- --- --•--- ------ --- - _
5 - Full Precision OFF
6 Confidence Coefficient 0.95 --- - - _
, 7 Level of Significance 0.05
8 ______
9 PCE MW21S(less 0.65) • r
`-' 10
11 General Statistics
-1 -
12 Number of Values 7
13 Minimum 0.085it
`
r 14 Maximum 0.365 -
15 Mean 0.165 i
16 Geometric Mean 0.129 I I
17 Median 0.085
18 Standard Deviation 0.137 ____r_
—_,_ SEM 0.0516 ! -- •
- — - -
19
20 i
21 Mann-Kendall Test - -'-___ -
22 Test Value(5) -10
23 Tabulated p-value 0.068 --
24 Standard Deviation of S 5.164 1
26 Standardized Value of S -1.743 - ~
26 Approximate p-value 0.0407 i I
--_... --
28 Insufficient evidence to identify a significant i - ._ -- -
29 trend at the specified level of significance. r I �—
.

j A I B I CID E I F G Fi I I J _ K I L
1 Outlier Tests for Selected Variables
2 User Selected Options
3 From.File C:IUsers\rford\DesktoplOCSWM North-stats-outlier-organic.wst
Full Precision OFF — — —_-
4
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7
8
9 Dixon's Outlier Test for DCA MW21S I i
10
11 Number of data=9
_a
12 10%critical value:0.441
13 5%critical value:0.512
r --
14 1%critical value:0.635 �!
15
16 1. Data Value 14 is a Potential Outlier(Upper Tail)?
17
18 Test Statistic:0.182 --� --
19 _
20 For 10%significance level, 14 is not an outlier.
21 For 5%significance level, 14 is not an outlier.
22 For 1%significance level, 14 is not an outlier.
' 23
' 24 2.Data Value 6.6 is a Potential Outlier(Lower Tail)? - - — -
25
26 Test Statistic:0.297
- ----;--- --- - -- -- -
i
27
28 For 10%significance level,6.6 is not an outlier.
29 For 5%significance level,6.6 is not an outlier.
30 For 1%significance level,6.6 is not an outlier.
31

-, 1 A I B I C D I E I F G I H I I J I K I L
1 Mann-Kendall Trend Test Analysis -— -__ - _ ___. _ _ ..____
2 User Selected Options
3 Date/Time of Computation 9/4/2013 2:31:50 PM - — +
From File C:IUserslrford\DesktaplOCSWM North-stats-outlier-organic.wst
5 Full Precision OFF -u
6 Confidence Coefficient 0.95 -v-- --
7 Level of Significance 0.05 -_------ -
8
DCA MW21S --r - - -r --- - '- -
- 9 . i ---s-- - -
10
11 General Statistics L--
12 Number of Values 9 ---
13 Minimum 6.6 -----.------ --
14 Maximum 14 _- -
15 Mean 10.26
Geometric Mean 10.02
16 I i
17 Median 10 - - j i --- -..
- - -- --1 c- .
18 Standard Deviation 2.342 I
19 SEM 0.781 --- r- } - .
.._ ..—r -�-- __ _. t
20 -- — I I _ --_ __— -
21 Mann-Kendall Test p
22 Test Value(S) -5 ; — -I __. I
23 Tabulated p-value 0.381 I ______F__
--_TT -_-
24 Standard Deviation of S 9.539
-I
25 Standardized Value of S -0.419
I
- --- - - -
26 Approximate p-value 0.337 1
_____ - - -
27 ___ I ! -----
- 28 Insufficient evidence to identify a significant n
1 17
'29 trend at the specified level of significance T i , -

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' From File C wo�h'e�� outlier'mgan�^wo
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Full Precision OFF
' 4
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Te�oorSuapeoeooum�mwxhRouoe,�mt 1
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' 11 m umber of data=9 | | |
� 10aonumyv�ue 0441
12 -- --
' 1��%critical myme0.s1u
- ---- __-' ---.
14
.' 196 critical value:0.635
15
'— Value 29ise Potential Outlier(Upper Tai;Y ` |
� 17
' ev8�hm��0��� -- i
' 10 Test
-1L --- � ----�'-----�- -- --
' 20 Fnr10%significance level,oeia not onoutlier.
----Fnr5��oiQn0cance|eva| u�/am�unoumier -
' u1 ' �
99 For 1M`significance level,28'is not anoutlier.
�23-
u.Data Value 4.5 ism Potential Outlier(Lower ToU)? |
24 _ --------�-----|' -- - ' . -
�5- '----1��-- � -
eo Test Statistic:0.042 / |
� --_ _ --___ ----_--/ - -
z/
' Fnr1O96si0n�canoe|eve| 4�imnmnnvume� ' |
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| ey For 5f6 significance level,4.5|s not unoutlier.
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Mann-Kendall Trend Test Analysis
--- . ._..
User Selected Options
___ _ -- _ __
2 3
Date/Time of Computation 9/4/2013 2:56:41 PM -
_ _ _
I ____ _ _
I 4 From File alUserthrfordIDesktoplOCSWM North-stats-outlier-organic.wst _
Full Precision OFF
-
5
l' 6 Confidence Coefficient 0.95
7 __ -
-
_ _
Level of Significance 0.05
8
' --
DCE MW21S I i-----i_
9 I
- 10 11 - -
General Statistics
r- I
1 12 Number of Values 9 I
i , • - , _ _
13
Minimum 4.5 --r
14
Maximum 29
I
15 _
Mean 15.53
16
Geometric Mean 13.24
. I Median 17 -
' 17
------k-18
Standard Deviation 8.059 I —t
_ .
19 i I
SEM 2.686 I .I I __ . .
20
21 Mann-Kendall Test I -----1- I
- '
22 Test Value(S) -27 I I
23
Tabulated p-value 0.003 I
24. I _--
I
-
Standard Deviation of S 9.539 i
25 _
Standardized Value of S -2.726 I
1._ 26 I
Approximate p-value 0.00321
27 I 1 1
28 Statistically significant evidence of a decreasing • ! - - ----- -- -----
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u 2 User Selected Options - -
3 From File C:\Userslrford\Desktop\OCSWM North-stats-outlier-organic.wst
4 • Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1
I
6 Test for Suspected Outliers with Rosner test 1 --
7 - - - --
8
9 Dixon's Outlier Test for VC MW21 S
Number of data=9 I
11 I _
12 10%critical value:0.441 1
13 5%critical value:0.512 •
i 14 1%critical value:0.635 i I _---1 -
— — - -r-- — —} --
15 I �.-- -
�- 16 1. Data Value 2.4 is a Potential Outlier(Upper Tail)? T +
17 I _Ei
18 Test Statistic:0.536
i
19 —I i _ _
20 For 10%significance level,2.4 is an outlier. 1- 1
21 For 5%significance level,2.4 is an outlier. r I rt
r- --
22
For 1%significance level,2.4 is not an outlier. � , ,
23 Li
' - -- - - --
24 2.Data Value 0.16 is a Potential Outlier(Lower Tail)?
25 -- — — _ _— --T---.-_- -1- -. -
26 Test Statistic:0.000
27
28 For 10%significance level,0.16 is not an outlier.
2 9 For 5%significance level,0.16 is not an outlier.
30 For 1%significance level,0.16 is not an outlier. i i
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r7 20 For 10%significance level, 12is not onoutlier.
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_ 21 For 5%significance level, 1.2 is not anoutlier.
. 22 For 1%significance level,12�no^onouo�^ - _ ---
------- ---'
| 23_ ----�'----- -i ---
24 2. Date Value O.16 isa Potential Outlier(Lower Toil)Y | | !
25
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| \ �O TestS�unuu
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,- ---For 10&significance leve �10�ncxan�u�er
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3 From File C:IUserslrfordlDesktoplOCSWM North stats.wst - -
4 Full Precision OFF - ---- `
$ Test for Suspected Outliers with Dixon test 1 - _ --
6 Test for Suspected Outliers with Rosner test 1 _ -
8
i 9 - Dixon's Outlier Test for K MW-21D -
10 — --
11 Number of data=7
12 10%critical value:0.434 -
13 5%critical value:0.507 1 -
I 14-1%critical value:0.637 r I
15 _ 1 . —
16'1. Data Value 983 is a Potential Outlier(Upper Tail)? i f -
I - - -- --
17 - I ------- --
1 - -- -
18 Test Statistic:0.607
• —
19 --
F- 20 For 10%significance level,983 is an outlier. E
21 For 5%significance level,983 is an outlier. 1 -.. ;
- -----------�---..[-_ _ ---
For 1%significance level,983 is not an outlier.22
23 - ----_� +-
24 2. Data Value 647 is a Potential Outli ------er(Lower Tail)?
• 25
26-Test Statistic:0.131 - - - - -
_�
28 For 10%significance level,647 is not an outlier.
29 For 5%significance level,647 is not an outlier. I
30-For 1%significance level,647 is not an outlier. I
I 31
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12 !
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r. 10%critical value:0.482 1-- 1 1----"F
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5%critical value:0.56 1--- I i
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1%critical value:0.698 1 1 !
- 14
1 15 1 l
1. Data Value 779 is a Potential Outlier(Upper Tail)?
16 ! i
.1; 8 Test Statistic:0.068 t----
i
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19
,
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20 For .10%significance level,779 is not an outlier. I I i
-1 21-For 5%significance level,779 is not an outlier. I -1- 1
For .1%significance level,779 is not an outlier. 1 I 1
22
.
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23 __—
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2.Data Value 647 is a Potential Outlier(Lower Tail)'?
24
A 25
29
26
Test Statistic:0.333 I -
27 ---
i
------i—-----
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-For 10%significance level,647 is not an outlier. II. I-
t 28 -
For 5%significance level,647 is not an outlier. I I '
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For 1%significance level,647 is not an outlier. _1 - ---!--- i .
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' 2 User Selected Options—______ -
3 From File C:Userslrford\DesktoplOCSWM North-stets-indicators.wst _ ---_ -
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4 Full Precision OFF ________ - - --------- -- - - - -.-
5 Test for Suspected Outliers with Dixon test 1 -
6 Test for Suspected Outliers with Rosner test 1 Y --_ - --
•
1 7
8 -
Dixon's Outlier Test for Mn MW-21D F�
9 h -
i 10 --4--
11 Number of data=7
12 10%critical value:0.434 i --
13 5%critical value:0.507 - --- -
14 1%critical value:0.637 _ ---
- - -t_
15 - - I - -
16 1• Data Value 317 is a Potential Outlier(Upper Tail)?
17 [
18 Test Statistic:0.699
19 i --_
ti 20 For 10%significance level,317 is an outlier. - - I
- -I---
21 For 5%significance level,317 is an outlier.
22 ,..
For 1%significance level,317 is an outlier. —I -
23
24 2.Data Value 10.9 is a Potential Outlier(Lower Tail)? ! -
y_ 25 --- I - — -- __ - i - - --. - i -
i 26 Test Statistic:0.009 i I
--€— _ - ' -- 1
27 _
For 10%significance level, 10.9 is not an outlier. i
i 29 For 5%significance level,10.9 is not an outlier. I 1 I -
30 For 1%significance level,10.9 is not an outlier.
,
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'
1 A I B C I D E F G I H _ .I. I J I K 1 L -
1 Outlier Tests for Selected Variables — -----
2 User Selected Options
_ 3 • from File C:Userslrford\DesktoplOCSWM North-stats-indicators.wst - —_ -
4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7 • .
8
r I-
9 Dixon's Outlier Test for Mn MW-21 D(less 317) �� — w-- 1
10
Number of data=6 - - --- -.--,—--.--._+.__ .
12 10%critical value:0.482 l
-
_
13 5%critical value:0.56
14 1%critical value:0.698 ^^
t - + --•----
15 —
16 1. Data Value 103 is a Potential Outlier(Upper Tail)?
18 Test Statistic:0.641 i --- - I
19
20 For 10%significance level, 103 is an outlier.
21 For 5%significance level, 103 is an outlier. I
22 For 1%significance level, 103 is not an outlier. I
23 ----
24 2.Data Value 10.9 is a Potential Outlier(Lower Tail)? j
_ • 25 --=- rJ .---- -
t 26 Test Statistic:0.029 • T
27 0 I
_ I
} 28 For 10/o significance level, 10.9 is not an outlier. ----
29 For 5%significance level, 10.9 is not an outlier. I I
30 For 1%significance level, 10.9 is not an outlier. I I
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1 Outlier Tests for Selected Variables
2 User Selected Options
3 From File C:\Users\rford\Desktop\OCSWM North-stats-indicators.wst
r 4 Full Precision OFF --- - -
5 Test for Suspected Outliers with Dixon test 1 -�
B Test for Suspected Outliers with Rosner test 1
7
Dixon's Outlier Test for Mn MW-21D(less 103)
9
-� -
10
11 Number of data=5
12 10%critical value:0.557
13 5%critical value:0.642
14 1%critical value:0.78 1
16 1.. Data Value 44 is a Potential Outlier(Upper Tail)? 1 T
" 17
18 Test Statistic:0.792 -- i --- i- _-. .-_- . • . - .
-— +
19
20 For 10%significance level,44 is an outlier.
21 For 5%significance level,44 is an outlier.
:: 0n1% 9cance1eve144i50utl1.F,
24 2. Data Value 10.9 is a Potential Outlier(Lower Tail)?
25
26 Test Statistic:0.082 -
27 — - - - i -- - i.. _ .
28 For 10%significance level, 10.9 is not an outlier. IT
29 For 5%significance level, 10.9 is not an outlier. -- -
30 For 1%significance level, 10.9 is not an outlier.•
31 -
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s
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---mumber,�d�a=4 |
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�� 10%ch�cm|vom�oa79
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' ) 17
/ Te��0e��cO319 i
! _�� �
' ^ . 19.
' Por1096mi8n�oonxe|eve| 178ianmonoudio�
| 20 ' '
For 5&significance level, 17.8 is not uooutlier.21
-
u� Fo,196nioo�cmnm,|ov�. 17.8�nvuannudin� |
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' 24 2.Data Value 1ueise Potential Outlier(Lower nmV?
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27 --_-____-
--�Fo,10%o�n�nmnce�ve� 1�9��aamouo��
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For EN6 significance level, 1u.9iu not anoutlier. .
^ ��-For|Y6��nmuunua|eva|' 1 0y�ncuunuuu|oc ---- --
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Use 8e|nc�d0p�ons �
. Days�|meufCumpu*,mun S��2O134:40`O9PM
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! - From File C� � �\D Uee �� evW VV npx2�SMNo� � �h- � 'inummmm est
_-- _-
-5- Full Precision OFF
-1 -----
� hg oo��� uQs
[ ) Confidence Coefficient-�� - .- -_'- -_ '
7 Level nfSignificance 0.05
^ ' OnPMW-218
i -�- -- --'------'----��� � ---
~ . �10
General Statistics .
| .12� Number of Values a
' 13 Minimum 52.7 | |
__-
Maxhnum 151 ' |
14
| 1� Mean 84�6 '
. /
Geometric Mean �.�
16 _T_. --__-'
17
Mau�nO7.B5 |
|
- Stangau1Devia��T�4u
' 18
' �
SEM12.3 | !
19
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. . 20- —__-_-- --
Mann-Kendall Tas � | |
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Test Value(S) 822
/
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� Tabulated p-va|ueV.274
-- ------- �--
^ S�m���v ���S8�8
. ^-��
msnue�u�dVa|uavf� �81� �
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� ue Approximate p-vm|uao.zsu
27
Insufficient evidence uz identify asignificant
28- uou - |nfs --z ua �- -- -' ^ -- - ���------l--- �� ---
29 n monpnomeo�vo �nm�an
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Outlier Tests for Selected Variables
2. User Selected Options •
3 From File C:1Userslrford\DeslctoplOCSWM North-stets-indicators.wst
4 Full Precision OFF - - - - - - --- -- -
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7
8
Dixon's Outlier Test for ORP MW-21D9
10
11 Number of data=8 I --
12 10%critical value:0.479 - ---
13 5%critical value:0.554
14 1%critical value:0.683
` 15 - -.
16 1. Data Value 463 is a Potential Outlier(Upper Tail)?
17
18 Test Statistic:0.099 — —
19
20 For 10%significance level,463 is not an outlier.
21 For 5%significance level,463 is not an outlier. �-
22 For 1%significance level,463 is not an outlier.
23
24 2.Data Value 45.2 is a Potential Outlier(Lower Tail)?
l
26 Test Statistic:0.065 !
-- I -�- ---� -
27
28 For 10%significance level,45.2 is not an outlier.
29 For 5%significance level,45.2 is not an outlier. -I
30 For 1%significance level,45.2 is not an outlier.
— -- t-- a
31
•
•
{1
{

1
-, J A I B ( C I D E I F I .G H I I j J [ K [ L
1 'Mann-Kendall Trend Test Analysis ---
2 User Selected Options ' -- __
k 3 Date/Time of Computation 9/24/2013 4:51:54 PM _ --
3 4 From File C:\Userslrford\DesktoplOCSWM North-stats-indicators.wst _ -- __ -- -
5 F.ull Precision OFF - _ -
6 Confidence Coefficient 0.95 ____`—_ __ _ ___
7 Level of Significance 0.05 _______ ,-
9 ORP MW-21D
General Statistics -.
--, 11 _ r
______
12 Number of Values{8
13 Minimum 45.2 I —_t---- _-
14 Maximum 463 - t
' 15 Mean 193.3 ---- -
16 Geometric Mean 142.2
17 Median 121.2 _ _ --___._--___--..
Standard Deviation 163 -
18 _ — i
5EM 57.62 h_ - -- _r-
19
21 Mann-Kendall Test i - i
Test Value(S)I16 i -I
22 1— _�—----+ _
Tabulated p-value 0.031 i
r
r. 23 k - -- ` --i fi ...
• 24 Standard Deviation of S 8.083
25 Standardized Value of S 1.856 —_
26 Approximate p-vaiue 0.0317 _-
28 Statistically significant evidence of an increasing I I — ( _
29 trend at the specified level of significance. I ' .---�--- -- -
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f A _ B I C DI E I F G I H 1 I J K L
1 Outlier Tests for Selected Variables - -
2 User Selected Options -
3 From File C:\UserslrfordlDesktoplOCSWM North-stets-indicators.wst•
- --
4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1 - -
6 Test for Suspected Outliers with Rosner test 1 -- - - _-
7
8 _ J
9 Dixon's Outlier Test for pH MW-21 S -
10 - - -
11 Number of data=8 - _-
12 •
10%critical value:0.479 �_—
13 5%critical value:0.554
14 1%critical value:0.683 - -- -
15 -
16 1. Data Value 7 is a Potential Outlier(Upper Tail)? i - I - i
-- -- 1
18 Test Statistic:0.089
- - -- _ 1
19
For 10%significance level,7 is not an outlier.
20
21 For 5%significance level,7 is not an outlier. -- i
_ r -
22 For 1%significance level,7 is not an outlier. - ; I -
{ --- —
23 I
2.Data Value 5.25 is a Potential Outlier(Lower Tail)? r
I-----
25 - - -
26 Test Statistic:0.760 I L_
i I
27
28 For 10%significance level,5.25 is an outlier. ---
j29 For 5%significance level,5.25 is an outlier.
30 For 1%significance level,5.25 is an outlier.•
I I
31 I
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1

A I B C I D _ E F I G H _ I L J I K I L
1 Outlier Tests for Selected Variables __ _— -
2 User Selected Options
3 From File C:IUserslrfordIDesktoplOCSWM North-stats-indicators.wst —_._ +__
4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1 ___--
6 Test for Suspected Outliers with Rosner test 1
7 ---
_ 8 I __
9 Dixon's Outlier Test for pH MW-21 S(less 5.25) -- --
' 10
11 Number of data=7 �- --- ! ---
12 10%critical value:0.434 I — -
13-5%critical value:0.507
i4-1%critical value:0.637 i --
I 15 I ,
16 1. Data Value 7 is a Potential Outlier(Upper Tail)? !
17 j-
18 Test Statistic:0.089
I i
I -- 3-t -.--•-- -- -- -
19 i ;
20 For 10%significance level,7 is not an outlier. J - iT [ -T- 1
, 21-For 5%significance level,7 is not an outlier. I j
22 For 1%significance level.7 is not an outlier. i - -� 1 -
I' 23 - I --
24 2.Data Value 6.55 is a Potential Outlier(Lower Tail)?
25
26 Test Statistic:0.244
I
27
28 For 10%significance level,6.55 is not an outlier.
29 For 5%significance level,6.55 is not an outlier.
For 1%significance level,6.55 is not an outlier. _
" 31 I 1 i I
'r
d
I

A e j C D s p | G H K ' L
� Mann-Kendall Trend Test Analysis
��G��dO�n�
- -__-_-___ ------_'_----__ .
' DauwTi�mufCompu�nvn �24�0135'23�3�P�
' 8 ' � _________--
' - From File �C�\Usoso��rg���mup\O�Gvv�Nnn�'s�� |n�G�����
� 4 ' '
Full Precision OFF
� ----_ .--_��-'__ __- --
- 6 Confidence Coefficient 0.95
-_-'__-----_-'- '- __
' ^ 7 �ava|ofSignificance 0.05
---_- '_--'- '^ --
- -=- pHMVV-21@(less 6%5) ' '-- --'---- ---
| -9_
10 U- - -
�
General Statistics -- ---'- --
' Number of Values 7- |
_12�
Minimum G.55 �
13,
Maximum |
-L4_
Mean
--n 6.84
16
Geometric MeanV.8u2
�-- -
_17, MouionG.S2
18
Standard
�8
SGM 0�547 /
_ _ ----
20
Mann-Kendall Test
��-
Test Value(S) -5
-� --' --------- Tabulated p-vaWeO.2u1 - | --
23
24 Standard Deviation of8'0.558 |
----Standardized Value ufs �.601-' - ------'- -- - '--�--'----!-' --
` 25
^pvnm�mmua�vm|ueV274 '
' 26 ���
27
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A I B I C D E I F 1 G H I J I K L
1 Outlier Tests for Selected Variables -_
2 User Selected Options -
3 From File C:IUserslrford\DesktoplOCSWM-metals.wst II I 4 v-- -
Full Precision OFF _-Full -__ - . - _ .
5 Test for Suspected Outliers with Dixon test 1 __— - -_ _— - -
6 Test for Suspected Outliers with Rosner test 1 - -- - _ -
7 .-
8
Dixon's Outlier Test for Cr MW-21 S
10 _._._
11 Number of data=5
12 10%critical value:0.557 i -
4 13 5%critical value:0.642
. 1%critical value:0,78 I
15 I I - - - -- - -
16 1. Data Value 88.8 is a Potential Outlier(Upper Tail)? [ 1 i ---1
17 I
18 I
Test Statistic:0.822 i I -- -
19 ----- -
20 For 10%significance level,88.8 is an outlier. -t ----
21 For 5%significance level,88.8 is an outlier. - - I
22 For 1%significance level,88.8 is an outlier. ^I
' 23 s _ -
24 2. Data Value 2.43 is a Potential Outlier(Lower Tail)?- II�-_- 1
25 �- ; -----i-- - - -,_
26 Test Statistic:0.004 I I
28 For 10%significance level,2.43 is not an outlier. `- -
29 For 5%significance level,2.43 is not an outlier. -ry -
- -1- -
30 For 1%significance level,2.43 is not an outlier. _ i
- -
' 31 I P� - 1 -- I
F
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[ f

A B C D I E I F I G 1 H I I J I K - L �it
1 I Outlier Tests for Selected Variables -_ - -- _- 1.
2 User Selected Options -�- --- - -� -
3 —� From File C:\Userslrford\DesktoplOCSWM-metals.wst - - - - -
4 Full Precision OFF -- __ - _ "
5 Test for Suspected Outliers with Dixon test 1 - _ -_-- y
6 Test for Suspected Outliers with Rosner test 1 --- - -
7 ---- -- -
Dixon's Outlier Test for Cr MW-21S(less 88.8) 1 -
10 I
_ _
11 Number of data=4 _-
-
12 10%critical value:0.679 --
13 5%critical value:0.765 - -
14 1%critical value:0.889 - -_
15 I
16 1• Data Value 17.8 is a Potential Outlier(Upper Tail)? 1� ---4
16
17
18 Test Statistic:0.858 - 1 t - . -•
I
19 _ j i - - -
20 For 10%significance level, 17.8 is an outlier. i 1 i - - -_ - -
` 21 For 5%significance level, 17.8 is an outlier. T T- r
For 1%significance level, 17.8 is not an outlier. , ' C
22
I 23 i
24 2.Data Value 2.43 is a Potential Outlier(Lower Tail)? r- �- -- -
25 . 1—-- - ` - -',- - --
26 Test Statistic:0.022 I iI
27 --I - _ -- _I
i .� 28 For 10%significance level,2.43 is not an outlier.
29 For 5%significance level,2.43 is not an outlier. I _- --- -
30 For 1%significance level,2.43 is not an outlier. i i-_
— --
31 I
•
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- ' A B c | o E — F G | H K L �
��,T��f�G��dV��m
1
User Selected Options
-
From File CmUmenudonuoeumunV]C8VVM-meta|nmst
- _------_-___
Full Precision OFF
4
Test for Suspected Outliers with Dixon test 1
- ToethmrSuopec�d OuWa�°4�Rosn�rmmt 1
. s —_
' 7
o
Dixon's Outlier Test for C,MW-21S(less 17.W) |
10 | -__ _- _-_�i.- -- -
Number xom�=o
11
12
---10%critical value:0.88V — — ��--- -/— ---
-�� -- --' --------' | ---- � -
5%chdoe|va��D�41 '
13
-�---__-�]��-- ---
' 1Y6od�cmn�m�D�88 |
. 14 ~^~ - - '
1 Data | - | --- —�-----'' -[' - —
1� ' Potential-
/ 17
Test Statistic:0.845
' —
19
For 1ummm
significance level, m v .* � not unoutlier.
20- - - -_
21 For 5&significance level,4.62 is not aooutlier.
22Fm1Y6�n��mmk�e �O2�nmonnm��
23_
. -�-- r ---- -/���----'
:�Da�voms243�aPn�nVa Outlier Tail)?
|
24 °= +"°�
' zn
Test Statistic: |
26 _
27 - --
38 For 10@ significance level,2.43is not onoutlier.
For5Y6»i8n�cance|ave| u��aieomanuumio^ | �
z* ' ' ---'�r — --
ao Fv,196»iun�cance�ve|'c�3�nouanoumec
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- . A B C D I E F ( G H � | � J | K L
1 Mann-Kendall Trend 'ndTeo Analysis
2 User Selected Options
n Date/Time o/Computation 9124/20138:09:28PM '--'- —' ---- ' - --
4 From File cwuaum\rfbmDeumup«OcavvM'meta|o.we -----------' -- ---
-O --
Full Precision OFF
Confidence Coefficient O�S5
- __--- -_-
7 Level of S|gn0canoe 0.05
-- ---------' --
CxMW-218
10
1 General �|�uo� �cs | |
/ � -- | ----- ' --
Numbern of Values
| |
10 '
'--_�_------
13 Minimum2.43
--- Maximum-
88.8
14
15 _--_--l-_--_---
Mean %3�8 /
--_----_'___
16 GeomemcMean 8.V7e
- � - ---- --_-___'
Mndian4.62
/ -17'
E�m��oew�onmn
. -�� � _- -_
SEM 16.62
-19
.uu_
��-
Mann-Kendall
- ' _ - - -
uu Test Value(S) *
23 Tabulated p-valueu,24o
24 Standard Deviation of 34.082
�ond�ndb�dVo|un,�8O735 |
- 2� '
Approximate p-value0%31 ----'--'- ----
-
Insufficient evidence om identify asignificant �
�
28
+� -- 6�dm��hw�p- -- - � � - ` ---- | --'---�----- ' . - --
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' 2 User Selected Options
- 3 From File O:%Voe,sNrford\oeouu,p\OOGWM meo,|o'wm --'---------
4 Full Precision OFF
.
5
Test for 8unpe�nd Outliers with Dixon test 1
�
R Test for Suspected Outliers with Rosner test 1
7
--- ----- --- T-------
8
-
Dixon's Outlier Test for C,MW-21D
10
11----Number of data=5 --- -- ------
' - --- --12 --'-
10&critical value:V.557
_ ! --'--' ---
5%c��|vmms U�4
13 -
1%critical value:OJ8 |
-1�1s --
-- | -- '---' - - -
- oa�V�ue31 ��mPo�n��gud�r(Upp�rl�U� � |
10 1� ' --L----' / -- ' '----'
' 17
' Test 8��ouc��51 ---------''--- � � '
18 ~~
1y
- �x1M��gn�canoe�vo 218�unnumo�
�y� _. . -- . _-
21 For 5%significance level,21/6 isanoutlier.
22 For 1n^significance level,21/Bis riot anoutlier.
( --------
un
24o.Data Value 1.44ism Potential Outlier(Lower TmU)?
.25
| Teo'Statistic:�1|8 '
/ oV _ - __ __- �-------- L-_--- -
u7
� -_--'
- ua mv1u%�g��mm��. 1.��m��n�k�
---Fo 5%u�nmranoe�vm\ 1�4�mmamoumo� -----�--� --
�v
�
30 For 1%significance level, 1.44 is not an outlier.
| ---
31
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- f A B I C I D E j F j G H { I J j K I L J
1 Outlier Tests for Selected Variables
- 2 User Selected Options
- 3 From File C:IUsers\rford\DesktoplOCSWM-metals.wst
Full Precision OFF
4 -- - -.______--_.---_.
5 Test for Suspected Outliers with Dixon test 1 _
, . 6 Test for Suspected Outliers with Rosner test 1 -__ 7
8 9 b --1Dixon's Outlier Test for Cr MW-21 D(less 21.6)
10 _
11 Number of data=4
12 10%critical value:0.679
13 5%critical value:0.765
14 1%critical value:0.889 1 T
_. -...-_I__-._... ... _...
15 _ - --
16 1. Data Value 8.48 is a Potential Outlier(Upper Tail)? T I_
j 17 - ---- -- --I _ -
18 Test Statistic:0.591 - -- -
----{ - -
I
19
r- 20 For 10%significance level,8.48 is not an outlier.
- 21 For 5%significance level,8.48 is not an outlier. _--�
For 1%significance level.8.48 is not an outlier. I
22 —;._- -
23 - I -.-
. - -_ .. .
24 2.Data Value 1.44 is a Potential Outlier(Lower Tail)? --�- II - I 1, _ - l
4- -----
25 ___ __ I _-__.---.---4 -----.
26 Test Statistic:0.338 1 i
27 _-- -- -` ...__ -
r— 28 For 10%significance level, 1.44 is not an outlier. I T
29 For 5%significance level,1.44 is not an outlier.
30 For 1%significance level,1.44 is not an outlier.
i 31
,
.
1
II ,
1

I A B C D I E F G H I I J 1 K I I_
Mann-Kendall Trend Test Analysis
1
2 User Selected Options
3 Date/Time of Computation 9/24/2013 6:12:57 PM — -
4 From File C:\Userslrford\DesktoplOCSWM-metals.wst
5 Full Precision OFF
6 Confidence Coefficient 0.95
7 Level of Significance 0.05
8
9 Cr MW-21D(less 21.6) I - --- i---
11 General Statistics
12 Number of Values 4
13 Minimum 1.44
14 • Maximum 8.48
15 Mean 4.515
16 Geometric Mean 3.768
17 - — -- Median 4.07
r- --- -- - -f
18 Standard Deviation 12.927
19 SEM 1.463 i a --$---
r
I 20
21 Mann-Kendall Test
22 Test Value(S) 6
23 Tabulated p-value 0.042 i
24 Standard Deviation of S 2.944 Jv_---
Standardized Value of S 1.698 -I�
25
26 Approximate p-value 0.0447 I - 1
27 —r-- —
28 Statistically significant evidence of an increasing
29 trend at the specified level of significance.

LI�
A Eli CID E F G H I 1 J K L
1 Outlier Tests for Selected Variables _
2 User Selected Options
•
3 From File C:IUserslrford\DesktoplOCSWM-metals.wst -
4 • Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1 -
1
? r T
8
9 Dixon's Outlier Test for Hg MW-21S
10 - ---
11 Number of data=6
12 10%critical value:0.482 --
13 5%critical value:0.56 1%critical value:0.698
15
16 1. Data Value 2.37 is a Potential Outlier(Upper Tail)?
Test Statistic:0.433 f
'
18 7i I ++
19
20 For 10%significance level,2.37 is not an outlier. -- -- --
21 For 5%significance level,2.37 is not an outlier.
22 For 1%significance level,2.37 is not an outlier. i
23 I }2.Data Value 0.407 is a Potential Outlier(Lower Tail)?
24
25 - — — --- --
•
26 Test Statistic:O.174 -
27
28 For 10%significance level,0.407 is not an outlier.
•
h T 29 For 5%significance level,0.407 is not an outlier.
30 For 1%significance level,0.407 is not an outlier. _
31
1 �

|
-
' | A 8 C o E F G H | J | K L
Mann-Kendall Trend Teu Anokm�
--
o���v�m-Options
� U -
3
Daue[TimeofComputation 9/24/20136:52:37PM
From File C�Usan����uDeamn�OOGvvm me�|o�w�
° ------'_-'..-_-
Full Precision OFF
5 --
Confidence Coefficient u'yo
8
Level o fS�n0cunce O�5
- ' -------
' MgMW-%1S
10 | | |
General
-- '--�--- -' --
11 '
' -r-
' 12. Number m Values 6 |
Minimum |
1a
Maximum, 14
�5 '--� _�oun 1�73
- �
1�-
Geometric 'o�ean 1 1o7 |
- -
�_
Median /
� | ----
� 18 �noondomiodnn O877
� - / ----- �--� --
SsMV�77 / |
. ��-
20
` Mann-Kendall Teo / !
21- -- -
ou Test«ome�) 's
-.
' Tabu�egp�aheV�us | !
ua /
\ ------ -- --
-
24 St ���n�ar�Dationof8S.3c3 - � -�------- � --- ' '
- ___-_-�----_-
s��o��dVok��8 ��1
/ zm -_-_-
! pmximow,�va|ma ouoV
' c� '` �
� --- � |
2'
28 insufficient evide"=`"identify asignificant .
| - - � - ---
' 29 trend at the specified level of significance.
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' Outlier Tests for Selected Variables
User8e�n�dOpdons
u
From File C 'metals.wst
Full Precision OFF
' Test for Suspected Outliers with Dixon test 1 ---------' '-- -�--
---'----- ---- '
- Test ib,ouapev�uOudka�wi�Roene,�o 1
'
_ 7
»
9 ohon'sOutlier Test for Fg MW-21D
' 10
wumbo,n fd��=5
1�
12
_
10%critical value.0.482 /
13 cr
itical ve|umO.56 -- -----
1%�d�|mH ' 'value: ��
14 �
15
15 1. Data Value 78iso Potential Outlier(Upper Ten)?
' | 17
| i 18 Test Gtadedo 0J11
�� .
- F�10%s�omc mm�u�m zo�unum��
�� -_ ,
' For 5Y6 significance level,7W|uanou$|e� |
21- �
22 For 1m significance level,z8ison outlier.
/ 25
� 2.Data Value O.981isa Potential Outlier(Lower Tail)?
24
/ |
25 � |
Test������u11� /
. 26 ^
`- -_- --_--� �
27_ | '
, . eo For 10%significance level,0.981 is not on outlier.
� pme%sigmficummlevel,0.981isnot an outlier. |
�9-
Fvr1Y4signincunoe|eve| oya1 �mo�mnoumm:
3O ' � -_--__--
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- uoorGe�c�dOpdons
- '. _-' -----
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OFF
4 'Full
Precision -_--_'
� Tea'for Suspected Oumaswhh�xonmst 1
-' Test for Suspected Outliers with Rosner test 1
' ---- ---
Dixon's Outlier Test for MgMVv-210(less 7.8>
' 10
11 Number of data=5
_ _
10%vhdmdO�57
1213
value:
5%critical value;0.642
. r--1Y6cdtira|value:OJ8
14
1s
1' Data Value 2.9Giso Potential Outlier(Upper laU)? '
-1L �----' ' -
' 17 -4 / ^
-- -- 7
1n TestSm*u�co�6G
' -
19 /
r For 10%significance level, |
20 '
i 21 For5&u�nmcenoek�e�2�S�nmmnou�ec
For1Y6��n�cunmm�vo 2�5���emnud��
oo `
/ 23
24- 2.Data Value U.981ba Potential Outlier(Lower Tui0?
� 25 � T---- _
26 Test Statistic:O4D1
27
r For10%��n0xanceOS81 �mmanou�e�
uulevel, � -�-- - -
For 5&significance level,V.9o1is not unoutlier. |
� �9-
30 For 1m significance level,O.981is not anoutlier,
' 31
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-- I A B C D I E I F G H I J K L
1 Mann-Kendall Trend Test Analysis _ -- - - -
2 User Selected Options
3 Date/Time of Computation 9/24/2013 6:57:17 PM
4 From File C:1Userslrford1DesktoplOCSWM-metals.wst
5 Full Precision OFF
'� 6 Confidence Coefficient 0.95
7 Level of Significance 0.05 ___�W-_-__.
8 _.�
9 Hg MW-21D(less 7.8) J
11 General Statistics -- f- -
12 Number of Values 5
Minimum 0.981 j - t
13
14 Maximum 2.95
15 Mean 2.006
16 Geometric Mean 1.888
- -
17 Median 2.1
18 - Standard Deviation 0.717
19 SEM 0.321 - ( - --
Ir' -
20 I -- --- —---
21 Mann-Kendall Test
22 Test Value(S)'0 l
l 23 Tabulated p-value 0.592 -- { -
24 Standard Deviation of S 4.082
Standardized Value of S N/A -----
25
26 Approximate p-value N/A II
27 — - -------
28 Insufficient evidence to identify a significant
29 trend at the specked level of significance.
' I
i
I
L.

r
ATTACHMENT 4
r-
MW-23 + MW-24
._J
r
GRAPHS
•
[

tetrachioroethene includes estimated (J)values
4
A injection event 1: 03-29-11
A
3.5 - -..... ......... m
A A
3 -
•
•
•
.71
2.5 no trend(MW-23)
o_
c
0
A
L
2 - I
c
0
V
•
1.5 - .. — - _....- ♦
A ■
A
1 - .... —
■
A decreasing tend (MW-23/less 0.73)
_._ _ ■
■ r r
■
■
■
■ I ■ ■ ■ ■ `0
0 i i I i i i ! I f I I l I I .
o�`y1\oA \y„\o� o�\y�\oa yo4\o� o�\ye y\�cb\o� o�` \�o y\��\tio o�\��`titi o�`��`titi y��\titi Q�\�y\ti� o�`o�`�ti o`oo\titi \��titi \y�\tip �`y�`�3
1, '1, '1, 'Y ti ti ti 0 0
4MW-23 {,BMW-24
date sampled

1,1-dich loroethane includes estimated(1)values
35
30 - _ A 4
•
♦ A A
A no trend(MW-23)
25 -��- A
1
• •
a' r ♦ ♦ A A
0 20 -
a ■
..
c
ccu.i ■
C
O A • ■
15 J ...... •
■ ■
•
I •
• no trend(MW-24)
10 -
injection event 1: 03-29-11
5
0
ohy�0 0 ti1' �3 '5) b h h CO � A �cc0oo0) 0 0 ti ''�V,o (1, 1,a�y1`,ti `V�oh"))
, 0 O O `ti3y
` , 69ti `owti `�7 `o� `o \ otiti � o `o� `tio `tiw ` ,
Q1° o) o�` o C)(C) otio1`ti cc,
��MW-23 ��MW-24
date sampled

cis-1,2-d i c h l o roet he n e includes estimated(1)values
90 •
injection event 1: 03-29-11
80 - A.
A
A
70 -
A
•
60
-13
A
0_
Q.
A
50 - •
cis
fi'
arA
A
40 -
■
■
■ ■
A
30 -
■ ■ ■ ■ ■
■ ■
•
20 - ' ■
•
0 - .........
A •
(� decreasing trend{MVIW-235)
0 I I I I I l I I 1 1 1 I I l I I I I 11 I 1 i I f I I 3 1 1 1
\� °\ti°\pr° \y\� y "� � `�\°\ ) co Go�\y � �1p0 \° �° \p� ° pc° N.1' •
y ti yy°titiam 3\° ° ° ° ° ° o ° sC\ \° \yyVVyy\ \ y hy \ °\y $'_ \° \ \°\ \y�\ °\ \ \ \y\ yti
0`) yyy0c00'' 0i00(0y0(0 yy0(') ypc0 `1, y \ yro\ y \O
y y pp \y�
yy\y OL\y ph\y
MW-23 •N —MW-24
date sampled

OCSWM North landfill - potassium (MW23 + MW-24)
1600
not an outlier(Dixon)
1500
1400
injection event 1: 03-29-11
1300
1200
no trend through May 2013
Q.
Q.
100
0
4-
ru
1 1000
U
C
O _
V
900
outlier removed
800 J. •
♦ ► ♦ no trend through
November 2012
700
600
500
03/22/11 05/23/11 08/23/11 11/15/11 06/05/12 11/12/12 05/13/13
tMW-23 tMW-24 date sampled

� 1
OCSWM North landfill - manganese (MW23 + MW-24)
450
increasing trend through November 2012
400
injection event 1: 03-29-11
350 •
300
.a
Q. 250
0
ti.
c
u 200
c -
0
u -
not an outlier(Dixon)
150
no trend through May 2013
increasing trend through June 2012
100
outlier removed
- NCGQS
50 a...............................-- ..................... •
no trend through May 2013
0
03/22/11 05/23/11 08/23/11 11/15/11 06/05/12 11/12/12 05/13/13
f MW-23 BMW-24 date sampled

IOW
OCSWM North SLF - ORP (MW-23)
600
R2=0.596 1
- r
550 ♦
injection event 1: 03-29-11
,
500 - ♦
•
450 �,
♦
,
400 •
•
F
350 - •
/
a _ ,
- '
•
300
- ,
F
•
•
•
•
250
•
•
•
.'
•'
200 ,J ♦
•
150
r �1
100 .�-
♦
50
•
------- ♦
O
06/22/10 11/19/10 03/23/11 05/23/11 08/23/11 11/15/11 02/21/12 06/05/12 11/12/12 05/13/13
—0—MW-23 date sampled

OCSWM North SLF - pH (MW-23)
8.0
outliers removed(Dixon's test)
`\ RZ=0.8571
injection event 1: 03-29-11
7.5
ro
r
0
_
6.5 1 I 1 i f 1 I I 1
06/22/10 11/19/10 03/23/11 05/23/11 08/23/11 11/15/11 02/21/12 06/05/12 11/12/12 05/13/13
MW-23 ---i Log.(MW-23) date sampled

OCSWM North SLF - pH x ORP (MW-23)
600
0
500 0
R 0
400 . 0
.
.
_
.
a) 300 `.`
a
0
.
.• correlation coefficient=-0.66
200 O `..
_
.
_
.
100
0 -`a
Rr=0.5242(best fit)
0 i l i
6.6 6.8 7.0 7.2 7.4 7.6
pH(standard units)

OCSWM North - mercury (MW-23 + MW-24)
3.50
3.00 0 outlier
injection event 1: 03-29-11
2.50
2.00
0-
•
0
m
11.50
•
no significant trend(MW-23)
1.00
0 •
0
0.50 •
• O
/�
r o O i 0 0 O O O
0.00 1
o\t�\°A ti\tip\°� 3\°0\0� \~�\°� ti\°h\°� �,\ \°� ti\~b\°° (o\ `~° ti\S9\y° (, yy �,\�) tiyy ti ~� c� �� o\°�'\y ti'YV\tn ti\�\y� AY')
o ti o o ti o ti o ti o o ti o o ti o
MW-23 -' MW-24
date sampled

•
ATTACHMENT 5
i
MW-23 + MW-24
STATISTICAL ANALYSES
r
ij f

L A I B C I D E I F I G I_ H I I J [ K L
1 I Outlier Tests for Selected Variables ---
y 2 User Selected Options _ r___..__
3 From File C:1Userslrford\DesktoplOCSWM North-stats-outlier-organic.wst -
4 Full Precision OFF —
5 Test for Suspected Outliers with Dixon test 1 —
6 Test for Suspected Outliers with Rosner test 1 __-
7 -- -----r- l --
8
9 Dixon's Outlier Test for PCE MW-23 t
10 i 1 -
1 Number of data=9 —
-- -----
12 --__... —
10%critical value:0.441 i
13 5%critical value:0.512 — J
14 1%critical value:0.635
-
155 — — - - -
16 1. Data Value 4.4 is a Potential Outlier(Upper Tail)? I — -
` 38 Test Statistic:0.517 t____—
1 20 For 10%significance level,4.4 is an outlier. -1 f h
I 21 For 5%significance level,4.4 is an outlier. i - -
For 1%significance level,4.4 is not an outlier.
i
i 23 I -- - I
24 2. Data Value 0.73 is a Potential Outlier(Lower Tail)?
25 I I
;
26 Test Statistic:0.355 I i
27 _ _i
t- 28 For 10%significance level,0.73 is not an outlier. i
--r .
29 For 5%-significance level,0.73 is not an outlier. j --
30 For 1%significance level,0.73 is not an outlier. I I - -__---
31 I
r
r
i ,
-7
Zvi

L
A I B I C D E I F I G H I I I J K L
1 Outlier Tests for Selected Variables - - _—
2 User Selected Options
�, 3 From File C:1Userslrford\DesktoplOCSWM North-stets-outlier-organic.wst
• 4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1 -
- 6 Test for Suspected Outliers with Rosner test 1
7
—
I
8
9 Dixon's Outlier Test for PCE MW-23(less 4.4) -r -
-- }--- -
Number of data=8 i
11 i - - -.
12 10%critical value:0.479 E
13 5%critical value:0.554 i I
14 1%critical value:0.683 1
15
16 1. Data Value 2.9 is a Potential Outlier(Upper Tail)? ; I t
i
17 I
18 Test Statistic:0.143 I I
19 --- -
20 For 10%significance level,2.9 is not an outlier. 1 h- _- _ .
•
21 For 5%significance level,2.9 is not an outlier. — - i -
22 For 1%significance level,2.9 is not an outlier. I
23 - - . .-- -
r.. 24 2.Data Value 0.73 is a Potential Outlier(Lower Tail)? -
--- 25 —
26 Test Statistic:0.391 - _
27 -
r 28 For 10%significance level,0.73 is not an outlier.
I 29 For 5%significance level,0.73 is not an outlier. i --
30 For 1%significance level,0.73 is not an outlier. - __-H
31
l_

1 1 1---
1 A I B I C I D E F I G H I I J I K I L
I 1 Outlier Tests for Selected Variables
2 User Selected Options! -
3 From File CaUserslrford1DesktoplOCSWM North-stats-outlier-organic.wst - -- -
I4 Full Precision OFF _- .�_---_— -_-.__.__-_-__ ....- .._--___ _ _
5 Test for Suspected Outliers with Dixon test 11 --
r 6 Test for Suspected Outliers with Rosner test 1
8 _ -
9
{ -
; Dixon's Outlier Test for DCA MW23
10 I --- T
--J-----..._---
11 Number of data=8 I I I — -
_r 12 10%critical value:0.479 -
5%critical value:013 .554 i . T
---
- 14 1%critical value:0.683 i I -
16
1. Data Value 2.9 is a Potential Outlier(Upper Tail)?
17
v 18 Test Statistic:0.143
•
�_
19 -
I 20`For 10%significance level,2.9 is not an outlier. 1 1 �
21-For 5%significance level,2.9 is not an outlier. - I _ TJ w - -
-For 1%significance level,2.9 is not an outlier. 1 µ
- 22 i
24 2. Data Value 0.73 is a Potential Outlier(Lower Tail)? r. --- i
- 25 —i---
26 Test Statistic:0.391 _ -- -
27 I - '- -
2For 10%significance level,0.73 is not an outlier. I ti 8 ---- t -
l. 29 For 5%significance level,0.73 is not an outlier. - --
30 For 1%significance level,0.73 is not an outlier.
i T-.
31 •
i '
I
ti-.
r "
'R
I
I
i
•
L

^
)
^
A l B � C D E F G � M � | � i K L
o . -
/ 1 Outlier Tests for Selected Variables
u User Selected Options
. From File North v�m-nuU�r'o�an�^ws
-4 Full Precision OFF
- - ---
.
Test�x�uspec���uW����ho�on�u 1
s ' '
Test hxGuepeo�dOud��whhRnono' ' 1
0 T-- �a
- --- | --------- --T - ' -
. Dixon's Outlier Test for DCEMYY33
' 10
Numhe/c�da�=y |
. 1� _L- _---
10%oh�n�vn��0�41 |
x 1�
5%cd*ca|va|umus12
�3 __ ---_-i ' - -
1%o��co'mm|mzO�35 !
14
^ '1ei
10 1. ����77�mP�n�|�d����Toi�
Test Statistic:0.219
18
-_ - ---_-- -_
18
' For 1�&��n�canoe�vo 77�nmonou��c
20 - - |
'
` ^ 21 For 5%significance level,77ism�an outlier.
. |
/�1%��m�k��������
. c� | / i
--_ ---- _�_ '-- .
23- '--_
�lDa�Va� � � Po
tential' --' ----- -----'''-- --T- - - '
- es
Test atauaun'0.083
26 |
- For10%significance level,8��n�a��|��
~\ ��_
/ 2g Fnr5%��n�cance�ve.�5��uanouWe�
'
For 19&o�n�n�ncn|ove KS�mmamouV�� /
20 - _.
31
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'
( '
(
� (

Or ( .A I B I C _ D E F I G H I I J j K ,IL
1 Mann-Kendall Trend Test AnalysisIII - _- -
2 User Selected Options - — --
3 Date/Time of Computation 9/4/2013 3:00:24 PM ---- _ -
1 4 From File' C:Userslrford'DesktoplOCSWM North-stats-outlier_organic_wst _ _ - -- -M
5 Full Precision OFF _ — _--
6 Confidence Coefficient 0.95 ________ -- __-
7 Level of Significance 0.05 -
8
9 DCE MW23
10 - ------
11 General Statistics
12 Number of Values 9
13 Minimum 8.5 _-__--
14 Maximum 77 - --` + -
15 Mean 39.61 — -_- -. - ;
f6 Geometric Mean 32.92 I - ---
1 Median 35 -
17 ------1
f 18 Standard Deviation 21.85 - - j
SEM 7.285 - -i-- -------
19 - -- -
20
: `21. Mann-Kendall Test i I Test Value(S) -19 I -
--_
22 �- I -- -i -- 11_i
23
-
Tabulated p-value 0038
Standard Deviation of S 9.539
24
25 Standardized Value of S -1.887 I
Approximate p-value,0.0296 [ -
I 26 .----- ____J__ - -- - I--- {-- - - i - -? - - -- -
27 -- --- -i I - _i -- -
28 Statistically significant evidence of a decreasing
i
29 trend at the specified level of significance. j I I - --
I I
i 1
1

. .
�
|
� A l B C D s / F | G | M K | L -
OvdierTwsts for Selected Variables
�= - Uoe,Selected Options
, 3 From File C:\Usenmrfouuoaakmp\OCSWM North'stats'outlier'onganicmst
Full Precision OFF
' Test for Suspected Outliers with Dixon test 1
' ----- - --
| �-- - --
- Test�xSuopen�dOvn���N�Ronne �n 1
� ' � '
^
8 _
Dixon's Outlier Test for VCMVV23
� ~ 1011
Number of data=7
' -�- -_-_- --- __---_-_
� nhdm�vm�e0���
�u 1�� '
5m critical value:0.5O7
13
---1%cnm '
critical ' '�a7
/ | |
15 |
16 t Data Value 3.6 isa Potential Outlier(Upper Tan)? |
' -- ---- |
/ 17
' s Te ��Vu�cV��1
^ _18 Test
�n10Wu�n�canco�vm an�nc�anouU�� |
�s� -' - -- / ------J------''-'
21 For 5msignificance level,3.6 is not an outlier.
| | !
�� F�1mo�o��mm�v�3��m�ano��c
| � 23
' 24 �a�Vu� � Po
tential TaTail)? --r--' 7
;L |
os
Test 8mUohc'0.000
20 | .
27
' 38 For10%e�n�cenoe� � �ve. �� muanou��c
` - Fnr5Y6y�nNcance|ava| u1n�nu�anoum��
oy ' '
ao For 1%significance level,V.10is not anoutlier.
�U / ,
| � '
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1
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| '
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. �
-
� ^
/
/
,
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J A B C I D E I F G H I I I J I K L
1 Mann-_Kendall Trend Test Analysis -
2 User Selected Options -�^ _
3 Date/Time of Computation 9/4/2013 3:10:14 PM
i From File C:1UserslrforthDesktop\OCSWM North-stets-outlier-organic.wst - -
5 Full Precision OFF
6 Confidence Coefficient 0.95 —-— —
7 Level of Significance 0.05 — - ________
8 9 -VC MW23 I — .
10 I —t---
11 General Statistics I i--___i
12 Number of Values-7 I 1
13 Minimum 0.16 j
14
! Maximum 3.6 — - ---
�——--
Mean 1.614
15
16 Geometric Mean 0.954 ---
17 Median 1.6 ----� — -
' 18 Standard Deviation 1.32 — - —
19 SEM0.499 j ! - - T- i - -- -
20 --- -' I
1 21 Mann-Kendall Test I - — - i
22 Test Value(S)I-10
;,,{ 23 Tabulated p-value 0.068 - j
24 Standard Deviation of S 6.583 j I
- 25 Standardized Value of S -1.367 I- — -
26 Approximate p-value 0.0858
F 1-
27
28 Insufficient evidence to identify a significant
{ 14 trend at the specified level of significance.
29 , I r
I 'J
i
11 4
1

^
/
�
| |A � B | C � o E F G x ^ | . J K L
` ^ �m���f�G��dVe���
1
User Selected Options
Fmm�� Nmmn���g
r u -- �� ��� ��—��'�� ��
| Full Precision OFF
. 4
Test for Suspected Outliers with Dixon test 1
----Test�x�uopeo�uOuuiemwU�Rnene �o 1
� 1 - . ' -_ ---�
1
-__- /
�
� D�on�Oud�rTes �vKMY�33
~
� --_
10 _
Number,�da�=7
11 '
10% O�J4
12criticalvalue;
��
5%cnu 'critical value:n�o7 /
�
- 14 1w,critical value:0.637
� .
1s
16 t Data Va�e158Oioo Potential Outlier(Upper To0?
17
Teuo�nuhoV2��---
18 �m��«»nc |
_n9
' oo For si
gnificance �mu 1�aomnuumer.
| 'Fo,5%a�n�m,no��vr 1�����uanou�e�
� —
�z For.�o�n�omnoo�vo� 15OO�mmnmnon��
^ .
23
/
2. Om�Va�e����aPo�nn�|�uU�r�o�arTax� |
-24 .�.-
25_ _- -- ! --
26 Test QtadaUn 0.008
�� --------- ! --'T-- -- }' -- '
zx
---'Fm 10%significance level,528�m�aooume,
. �
oe -__
/ �x5%u�n�cmnnn�v� 5�8���anouMec
/ eq '
uo For 1%significance level,528is not anoutlier.
31 |
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I A I B I C I D E I F I G I H I I I J I K L
1 1 Mann-Kendall Trend Test Analysis
2 User Selected Options
3 Date/Time of Computation 9/4/2013 5:42:31 PM
, 4 From File C:IUserslrford\DesktoplOCSWM North-stats-indicators.wst -
5 Full Precision OFF
6 Confidence Coefficient 0.95
7 Level of Significance 0.05
8
9 K MW 23 i =— 1--
_
General Statistics
11 -
r• 12 Number of Values 7
13 Minimum 528 1I
14 Maximum 1560 i
• ,l - - - —_ --- !
15 Mean 878.4 I I
16 Geometric Mean 811.7 1
-- 17 ---- ------ Median 718 -----�-.. I I -. -
Standard Deviation 397.5 T--- ' ---_..__,_._ _.. -I -._- - .- ..
18 j -- -..
19 SEM150.2 I • t ---
20 --� 1-- .- - j _
21 Mann-Kendal!Test - -- _ ------ . - - -
i
I
- - I- ! - - -
22 Test Value(S) 3 _- -- -
,I+ 23 Tabulated p-value 0.386 —_----- I
24 Standard Deviation of S 6.658
25 Standardized Value of S 0.3
Approximate p-value 0.382 - ;-- .- ----1----- `- ---
26
27 i • s - - — -
28 Insufficient evidence to identify a significant ! '
- - -- -4 - -
29 trend at the specified level of significance. E 1 i
" i
if .
i
i
..1

J
f A I B C D I E I F 1 G I H I I J I K I L
1 Outlier Tests for Selected Variables --_
2 User Selected Options -- -—
3 From File C:\Userslrford1DesktoplOCSWM North stats.wst
4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7 -
_ _
8 -
9 Dixon's Outlier Test for K MW-24 - I --- t
10 -i-_ I__------ i - -
11 Number of data=7 -- --
12 10%critical value:0.434
13 5%critical value:0.507
14 1%critical value:0.637 - ' -
' 15 i -- -_ -
16 1. Data Value 872 is a Potential Outlier(Upper Tail)? --__- - i _
17 I
i 18 Test Statistic:0.176 I T
20 For 10%significance level,872 is not an outlier. I
i - _ --21 For 5%significance level,872 is not an outlier. _
22 For 1%significance level,872 is not an outlier. -
23 _--- - -.-
24 2.Data Value 651 is a Potential Outlier(Lower Tail)?
25
- _ - - _
26 Test Statistic:0.557
------- •----- --
27 ,
28 For 10%significance level,651 is an outlier. 1 I
29 For 5%significance level,651 is an outlier. I — I -I
30 For 1%significance level,651 is not an outlier. I I --L_
iii--- - I -
31 i
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^
A j a | C ) D E F G H K L
Pudie ����G�����m�
1 -
> � UserSe�cus1Op�onu
. -----'_ -
a From File C:\Users\rford\Desktop\OCSWM
FuUPoecision opr
5 Test for GuapeomdOuuiann*i�Dixon test 1
. ---__- _
~~ Test for Suspected Outliers with Rosner test 1
7
^
^ |
o
' Dixon's Outlier Test Tor KMvv-24
-10
11 Number uf data=6
�z-
10%c�omm,am 'e o4a2
- / -------
' 13 5%critical value:0.56
' �4 1%o��v�ms���
_ 15
| ` 16--- .1 Date Va�e�%�uPn�n8a|Ou��r(Upper Tm�Y '
` - �
17
- 1B Test Statistic: ~~ ~ ~~ |
.
18
20 For 1omsignificance leveLu72 is not enoutlier.
. 2� Fo/5%�gninounca|eve|'a7oiuno*anouoie� | '
| / - For1Y6s�n|Mcanca|eve�872ium�mnuumec ' - -�----
� 22
:m
�»�---��Da�vabe774� �aPoodn|Oud�,Vowe,Tn�?
�
|
'^ 25
^~ .
TestSt
atistic:0,041
27 '
' ^ ror10%��n�omnoe�ve 7���nmnnvu��� ---- - -
uo `
� �sms�,�meme�n4��en��
3O For 1��o�n�oanuak�e.774�mt anuud�c
-r--
^
31
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|
` | A o | C D s F � G H | � . K L
Mann-Kendall Trend Test An��
, ' 1
User Selected 2 '�_ --
Doo�T|meofComputa�on V��O135.43�epM
� _- '---- -_--. ---- _-.- __ --
, From File C�\Uee����Denkm ���VV�No���u�u� inuicemm��o�
. 4 _ ' ,—
n -Full Precision OFF
Confidence Coefficient V�5
�
' Level ofSignificance 0.05
_
a
. g KMVV-24(less 651)10
-=-�1 Genena|8ta�ufios ----� -- -------'---- --'
1
Number ofVelues+0
. _12 |13 _
Minimumn4
Maximum872
^ -14� r-- '
��
Meon8O2J
` -
Genmn�oMoaneo10
16 '
---l-
Median 77O.5
. -17,
18_
Standard Deviation 4us7 |
.
SGM10.5O | '
18
|
. \ zo
d m Mano' ,nau Test
31 --
_ o% TestValue
---' Tabulated ip�value 0235 -------' 7 -- -- �
�23-
� Standard Deviation �nnnfe� 23 ------- �
. mem����v�ue�Sme1 '
� -' �__--- _-
Approximate
^ 26 �
|
2/
. ` 28 Insufficient evidence to identify a significant
'
trend at the specified level of significan29
ce.
------' � | / ---
|
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I
71
II
A I B I C I D E I F G E H I J I K [ L
1 Outlier Tests for Selected Variables
2 User Selected Options ---- _
3 From File C:Userslrford\DesktoplOCSWM North stats.wst
4 Full Precision OFF -
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7_____ I
8
9 Dixon's Outlier Test for Mn MW-23 y -- II
10 I
11 Number of data=7 I --
' 12 10%critical value:0.434 T_
13 5%critical value:0.507
-- 14 1%critical value:0.637 {{ ' --
, 15 i -
16 1. Data Value 267 is a Potential Outlier(Upper Tail)? ! -�
- - -- I .
17 •'
18 Test Statistic:0.62 -
--- �—
20 For 10%significance level,267 is an outlier.
21 For 5%significance level,267 is an outlier. ! I
22 For 1%significance level,267 is not an outlier. I
ti l 23 - - -- +
24 2. Data Value 19.5 is a Potential Outlier(Lower Tail)? i -
- I -
I !
s 25 A ' -1---
1 26 Test Statistic:0.009 --1I I I
27 i _ -
28 Far 10%significance level, 19.5 is not an outlier. - -
`' 29 For 5%significance level, 19.5 is not an outlier. - - i
30 For 1%significance level, 19.5 is not an outlier. - ---~
31
I I.
•

1 A I B I C I D I E F 1 G H ] 1 I J I
1 Outlier Tests for Selected Variables
2 User Selected Options
- 3 From File C:\Userslrford\DesktoplOCSWM North stats.wst --
4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7
8
9 Dixon's Outlier Test for Mn MW-23(less 267)
10
11 Number of data=6
12 10%critical value:0.482
13 5%critical value:0.56
14 1%critical value:0.698
15
16 1. Data Value 112 is a Potential Outlier(Upper Tail)? I -- I
17 l --- —-- ----�_..
- Test Statistic:0.162
19
20 For 10%significance level, 112 is not an outlier.
II
21 For 5%significance level, 112 is not an outlier. —.r-- —
22 For 1%significance level, 112 is not an outlier. —
23
24 2. Data Value 19.5 is a Potential Outlier(Lower Tail)?
- 25
26 Test Statistic:0.025 —
27
28 For 10%significance level,19.5 is not an outlier. _.
29 For 5%significance level, 19.5 is not an outlier. _r
30 For 1%significance level, 19.5 is not an outlier.

� � � o o � E � F � G | H � | J K L
' Mann-Kendall 'Trend Analysis
1
- User Selected Options
----- ------� . ------
Dau�Tknecf Computation 8�� .V1���3V�s0Pw
.
From File O:lUaomhrford\DeakmpxOCSVVM North'otats ingicuu,rs^we
_
-FoUP�co|on OFF
� � _-.-_-_--'__--�- - -_
Confidence Coefficient D.On
n
Level of Significance 0.05
----'-'--- - --- --'
' ' '-----'-------- [-- --
' g xxnMvv�3(�oo3M7)
�
10
-- 11 General Statistics /
NumherofVa�es6
' 10 .
Minknum19.5 -------
13
Maximum 112
� _14
| ��Meana - ---��
15 _
- 16 Geometric Mean 45,eo
Median43J5
_17
omm��Deviation` -�� ' ]t�- __-
SEM 18�3 / !
. - ' -f- �--
! .
20 |Mann-Kendall Test
21- ' --------- L— - � -- - ' -
22 TestV�ueKq 8
--_
� 23 Tabulated p-vameo.0su
--_ --_- |-- ----4'-- — ' �
24-
Standard Deviation�S ��� �--.
o�m���dMduo�S 1�� /
| ��- -- ----� - --
p+oiu� o |
rOApproximate �wss4
--_
| |
27
— --|�uffic�zmW�n�� ------ | -- �
' oo --'-` --=---'�_
trend at
o �eop�n�wd�v�of significance.
/ | ^
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| '
-
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_ J. A I B I C D E . I F I G I H I I J I K L -
1 Mann-Kendall Trend Test Analysis
2 User Selected Options
3 Date/Time of Computation' 9/4/2013 5:35:02 PM -
4 From File C:IUserslrford\DesktoplOCSWM North-stats-indicators.wst -�--- -- _ -
5 Full Precision OFF
1 6 Confidence Coefficient 0.95
7 Level of Significance 0.05 — --- -
8
9 Mn MW23(thru Jun 12) ----- +- �__- --
— - ----- ---- t
- 10 1
11 General Statistics i
r Number of Values 5
12 r _ ___
13 Minimum 19.5
14- Maximum 112 _ —_-� -- -
15 Mean157.44 I
-L------- .- .
16 - Geometric Mean 144.29 ; i
17 Median 36.9 -- i
I 18 Standard Deviation 43.8 j
19 SEM 19.59 - TT
20 I I---
21 Mann-Kendall Test I
22 Test Value(S) 8 '
1 Tabulated p-value 0.042 —�- 1
23
Standard Deviation of S 4.082 I
24
25 Standardized Value of S 1.715 — ;
Approximate p-value 0.0432 -
26 ------- --T - --.
27 _ I _ _I T-. ._ -- - -
28 Statistically significant evidence of an increasing j
29 trend at the specified level of significance. i j i I I
i
r -1

I AI BICID != F J G _ H I I IJIK L
1 Outlier Tests for Selected Variables
2 User Selected Options
- 3 From File C:IUsers\rford\Desktop\OCSWM North stats.wst �—
4 Full Precision OFF .
5 Test for Suspected Outliers with Dixon test 1
- 6 Test for Suspected Outliers with Rosner test 1
7 •
8
9 Dixon's Outlier Test for Mn MW-24
10
11 Number of data=7
12 10%critical value:0.434
13 5%critical value:0.507 l
14 1%critical value:0.637
15
16 1. Data Value 405 is a Potential Outlier(Upper Tail)?
17
18 Test Statistic:0.09019
------_—_
r
20 For 10%significance level,405 is not an outlier.
For 5%significance level.405 is not an outlier. I
1 21E —� ——
22 For 1%significance level,405 is not an outlier.
-- i
23
24 2.Data Value 150 is a Potential Outlier(Lower Tail)?
- 25 !
26 Test Statistic:0.133 } !
27
28 For 10%significance level,150 is not an outlier. i -
29 For 5%significance level,150 is not an outlier. i
30 For 1%significance level, 150 is not an outlier. w- I
31
L

� A B C U | E F l G M | | J K | L
1 Mann-Kendall Trend Test Analysis
2 User Selected Options -- ----------- -� '
_ Date/Time ofComputation 9/4/2013 5:3718PM -----'--
From File North'atats'indicamrs^wn
-- ------'-----
' s Full Precision OFF
' 0 Confidence Coefficient O'so ---- --'---'-- ---'------ - - ---
---- Level of OO5 ---- --- ---'---
7 ' '
--- wmMW-24 - -~---'
' - -'--
10
11 General
-
/ ��ue���n 7 - --
` 12 ~^~
L' Minimum150 '
13_ _
_ 14 Maxhnum405 | '
----' � -- -- - r----'-- -
--Geometric Mean�263'3
16
. � -�r ~�~~ ' ^�___-_ �1- '
Standard Deviation 86.3 |
i �18 '
19 8EM30.4 |
|- .
20
� .
| Maon+<endaUTaa
� l
-~
Test Value(S) 522
| `
`- --- Tabulated p*a|ue0.28123
-
Standard -
__-_- _
601
' un Standardized Value—��'.�����
ee, Approximate p-valueu 274
27
�ouffic�o av�en�our�anu�ms�n0can | '-- ----- — --
- �8 - ` /
oandam�espec0ed|eve|ofs�n�canma -�--�-'� | ' ----
2g --
�
-
i
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_
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. j A I B _f • C D I E F I G H I I J I_ K L
1 Mann-Kendall Trend Test Analysis
2 User Selected Options - -
3 Date/Time of Computation 9/24/2013 7:43:37 PM -
4 From File C:Userslrford\DesktoplOCSWM North-stets-byproducts.wst
5 Full Precision OFF -
6 Confidence Coefficient 0.95
Level of Significance 0.05
8
9
Mn MW24(thru Nov 2012) T--- -- __
10
11 General Statistics - ---�—
12
Number of Values 6 -1
13 Minimum 184 1
Maximum 405 T
- 14
15 Mean 299.8 _
16 Geometric Mean 289.1 -�
-
17 Median 299 E -
18 Standard Deviation 85.32 I -
19 SEM 34.83 F I------
21 Mann-Kendall Test 1
22 Test Value(S) 11 i -- -
Tabulated p-value 0.028 . j
23 - — -
Standard Deviation of S 5.323
24 - - -----
25 . Standardized Value of S 1.879
26 Approximate p-value 0.0301
27 _ I I ----- I - --
28 Statistically significant evidence of an increasing i t
1 29 trend at the specified level of significance. - -
,1
it
it
r
1
1
1 i

•
J A I B C D E ¶ F I G I H I I J K j L
1 Outlier Tests for Selected Variables
2 User Selected Options
3 From File C:Users\rford\DesktoplOCSWM North stats.wst
4 Full Precision OFF ___________- -
5 Test for Suspected Outliers with Dixon test 1 J- - - --- _ _-
6 Test for Suspected Outliers with Rosner test ,1 _
7
8
• 9 Dixon's Outlier Test for ORP MW-23
10
11 Number of data=10 _� -- --- ---- -
12 10%critical value:0.409
13 5%critical value:0.477 1
14 1%critical value:0.597 -- -- _-- _
_
16 1. Data Value 548.8 is a Potential Outlier(Upper Tail)?
17
18-Test Statistic:0.097 I _ A�
T ,
19
20 For 10%significance level,548.8 is not an outlier.
r-
21 For 5%significance level,548.8 is not an outlier.
For 1%significance level,548.8 is not an outlier. i
22 -- - --
23 - - -�----
• 24-2.Data Value 14 is a Potential Outlier(Lower Tail)?
25 _ I - ---! - - - - -
26 Test Statistic:0.022 1
- -r
28 For 10%significance level, 14 is not an outlier.
29 For 5%significance level, 14 is not an outlier.
30 For 1%significance level, 14 is not an outlier. _______
31
1

A I 8 C D I E I F G I H_ I I - J K L
1 Mann-Kendall Trend Test Analysis
2 User Selected Options - - _ - -_ -
3 DaterTime of Computation 9/24/2013 5:08:45 PM •
- --- _
4 From File C:Userslrford\DesktoplOCSWM North-stats-indicators.wst
5 Full Precision OFF
6 Confidence Coefficient 0.95 -
7 Level of Significance 0.05
8
- 9 ORP MW-23 ------�
II-
- 10 i
11 General Statistics I ---1-- - -
--
12 Number ofValues)10 ----- -- i ---r- Y
'
- 13 Minimum 14 I
Maximum I548.8 -- ! - i -
14_ ----- I F---_-.._�_—._ ..
15 Mean 195.9 -_ti I i
16 Geometric Mean 98.31 t- — _ - --^ - ' -
1
_ �__ _.
-- 17 Median 73.55 I
Standard Deviation 212.8
' 18 �--- i - -
19 SEM167.31 # --- � - ---
20 = I
21 Mann-Kendall Test fii - i _-
22 Test Value(S) 27
23 Tabulated p-value 0.008 1 € -
Standard Deviation of S 11.18 -
24F ------- - - ..
25 Standardized Value of S 2.326 I
Approximate p-value 26 0.01
27 _ ! ---
28 Statistically significant evidence of an increasing I I - I I 1
29 trend at the specked level of significance. 1 - I I
.

f A B C [ D J E 1 F 1 G 1 H I J 1 K 1 L t
1 I Outlier Tests for Selected Variables
2 _User Selected Options
3 From File C:IUserslrfordIDesktoplOCSWM North stats.wst -��-
-
4 Full Precision OFF �—
5 Test for Suspected Outliers with Dixon test 1 -
6 Test for Suspected Outliers with Rosner test 1
. 7
8
9 Dixon's Outlier Test for pH MW-23 - I-- --
.10 -- i --- i ._ ..
11 Number of data=10 I
12 10%critical value:0.409 --- _ i- --.----- -.-._
13 5%critical value:Q.477 ,
14 1%critical value:0.597 ry -
15 I -.�-�
16 1. Data Value 7.54 is a Potential Outlier(Upper Tail)?
18 Test Statistic:0.271 I ---
19 ___;__
20 For 10%significance level,7.54 is not an outlier. i
21 For 5%significance level,7-54 is not an outlier. -- , -
For 1%significance level,7.54 is not an outlier. -�- _Y— • -
•
I 23 i
I 2.Data Value 5.32 is a Potential Outlier(Lower Tail)? !
24
25 __--
26 Test Statistic:0.478 1 -_
27
28 For 10%significance level,5.32 is an outlier. I _( ---
` 29 For 5%significance level,5.32 is an outlier. I i - -
30 For 1%significance level,5.32 is not an outlier. i 1___ ____
i
I
I ,
7
II

I A I B C { D •E F G I H - I J K I L
1 Outlier Tests for Selected Variables
2 • User Selected Options
3_ From File C:Userslrford\DesktoplOCSWM North stats.wst
4 Full Precision OFF -
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1 ___--- f t
7
Dixon's Outlier Test for pH MW-23(less 5.32) 1
9
10
11 Number of data=9 --�
12 10%critical value:0.441 I
13 5%critical value:0.512 ! ---
- - 14 1%critical value:0.635 _ _-ll
15 _ _ __ '
16 1. Data Value 7.54 is a Potential Outlier(Upper Tail)? T____ ----1----
___ t ___ —
17 --- ,-
18 Test Statistic:0.429 1
19 _ I __
20 For 10%significance level,7.54 is not an outlier. i
21 For 5%significance level,7.54 is not an outlier. --- !
22 For 1%significance level,7.54 is not an outlier. I I - -
23 �_.--- ---
24 2.Data Value 6.21 is a Potential Outlier(Lower Tail)? I j !
_4 —
, • 25 mm! --
—t— '
26 Test Statistic:0.505 i
27 1 -------
28 For 10%significance level.6.21 is an outlier. I -
29 For 5%significance level,6.21 is not an outlier. ---I __-
30 For 1%significance level,6.21 is not an outlier.
31 i
II
I .

A I B I C I D • E I F I G I H I I I J l K L
•1 Outlier Tests for Selected Variables
J 2 User Selected Options
•
•_.- 3 From File C:UserslrfordlDesktoplOCSWM North stats.wst -
4 Full Precision OFF -
5 Test for Suspected Outliers with Dixon test 1
- 6 Test for Suspected Outliers with Rosner test 1 -�
7
1 9 Dixon's Outlier Test for pH MW-23(less 6.21)
10 __
11 Number of data=8
12 10%critical value:0.479
13 5%critical value:0.554
14 1%critical value:0.683 I
15 +
16 1. Data Value 7.54 is a Potential Outlier(Upper Tail)? I
_.,
18 Test Statistic:0.456 Ir v I I
I I
19 - -- - -
20 For 10%significance level,7.54 is not an outlier. I
21 For 5%significance level.7.54 is not an outlier.
22 For 1%significance level,7.54 is not an outlier. ! I M_-___ 1
24 2.Data Value 6.7 is a Potential Outlier(Lower Tail)? 1 ,
25 l
1 26 Test Statistic:0.104 -- -- -- - -- h_
27 1 I -- --
1--- t28 For 10%significance level,6.7 is not an outlier. I
29 For 5%significance level,6.7 is not an outlier. t
30 For 1%significance level,6.7 is not an outlier. w_______ -
31
-1
i

A I B I C I D E F G I H I I ' J K L
1 Mann-Kendall Trend Test Analysis
__.
—
2 User Selected Options _______ -- -_ - -- _- - -_ - _ __
3 Date/Time of Computation 9/24/2013 5:14:49 PM
4 From File C:Userslrford\DesktoplOCSWM North-stats-indicators.wst
5 Full Precision OFF �� __
6 Confidence Coefficient 0.95
7 Level of Significance 0.05
•
8
9 pH MW-23(less 6.21) -i —
- 10 I - - -
11 General Statistics -- - i i — -I '
12 Number of Values 8 I I
Minimum 6.7 l
13 -
14 Maximum 7.54
15 Mean 7 _u
' 16 Geometric Mean 6.995 - ---
17 Median 6.98 ! -
18 Standard Deviation 0.281 I
i 9 SEM 0.0995 - f --__1-.-----
21 Mann-Kendall Test f--r - f I •
Test Value(S)F9 I i. , --
23 Tabulated p-value 0.016 1 i ,
24 Standard Deviation of S 8.021 — i - ---
25 Standardized Value of S -2.244 _ Jj
26 Approximate p-value 0.0124
28 Statistically significant evidence of a decreasing --�'
29 trend at the specified level of significance. I I _
I

I A B I CID El Fl G I H J I J t K
1
Outlier Tests for Selected Variables
2 User Selected Options
3 From File CAUsers\rford\DesktoplOCSWM-metals.wst
4 Full Precision OFF
Test for Suspected Outliers with Dixon test 1
5
- 6 Test for Suspected Outliers with Rosner test 1
7 —r— —
8
9
_ Dixon's Outlier Test for Cr MW-23 r--- --
-- 10
11 Number of data=5
10%critical value:0.557
I 12
_ 13 5%critical value:0.642
14
1%critical value:0.78
--[ -4
15 T r
1. Data Value 65.3 is a Potential Outlier(Upper Tail)? I
_ _
16
17
18
Test Statistic:0.080
19
20 For 10%significance level,65.3 is not an outlier.
21 For 5%significance level,65.3 is not an outlier.
22 For 1%significance level,65.3 is not an outlier.
23
24 2.Data Value 0.5 is a Potential Outlier(Lower Tail)?
52
I ; 26 Test Statistic:0.144
27 I I -
28 For .10%significance level,0.5 is not an outlier.
1
29 For 5%significance level,0.5 is not an outlier.
_L
For 1%significance level,0.5 is not an outlier.
30
' 31
._.
•
I
'1

-
_
� A � � � � D � E [ F a H | | � J l K | L
- Mann-Kendall Trend Test Ano�n�
1 -- -_-_
�����0��y
- -----
` - Dame/T|m Com
putation 8/24120136:83:00PM
--------
' 4 From File CAUsen�mz�\DeomopxJOGvvM-mo� �|nst '
' _--
' Full Precision OFF
s �
O
Confidence Coefficient V'ys
' _'--
Le°e|��Ginni�c�nnn 0�O5
,
- -
o,MW-an
10 1� --
�ane,o|��dndco ' |
- --__'_-
Numbn,nf\��eo5 /
12
Minimum |
10 ---___
- 14 K4�� .Maximum
'
�s Mean` 16 �_-_ --
Geometric Mean 14'7o '
, ---- ---�
17 Median 35.9-- -'l'_�--------- � ��nd�od�� ad ion� 03--- | .
18-1e --
oEw1�Q8 ! !
, 20-
� Mann-Kendall 'Too
` ut
Test Value(S) 10
- ^_
' Tebu�md�va|ue0.OV8
23 _ ---
a�nuamoovmnonofS4.082
24 _-_-_
Standardized Value ofS22U8 �
� | 25- ' ---- -- - -
�vom� o�1n7 '
[ 26_ Approximate _ - -' L- ----'
27
.28_�auodoa|�o�n�nmntmv�enneofan�c�as\nQ
| oy m
end at the specified level ofsignificance.
�
! |
r`
/
-
^
/
rl
/
'
_
r-
`
-'

L A I B I C D E I F G H I I J I K I L
1 Outlier Tests for Selected Variables _- _--
2 User Selected Options _ _ --
3 From File C:1Userslrford\DesktoplOCSWM-metals.wst
4 Full Precision OFF
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7
8
9 Dixon's Outlier Test for Cr MW-24 -T
10
11 Number of data=5 T
12 10%critical value:0.557 -� _-
13 5%critical value:0.642
14 1%critical value:0.78 i ----�
-�
15 �— -- - - - -
16 1. Data Value 4.34 is a Potential Outlier(Upper Tail)? i f
17 - -
18 Test Statistic:0.055
19 - ---- --
20 For 10%significance level,4.34 is not an outlier. �-
21 For 5%significance level,4.34 is not an outlier. T
22 For 1%significance level,4.34 is not an outlier. I
4-
23
24 2.Data Value 0.5 is a Potential Outlier(Lower Tail)?
' 25
26 Test Statistic:0.000 - - -
i
27
28 For 10%significance level,0.5 is not an outlier. —^
29 For 5%significance level,0.5 is not an outlier.
30 For 1%significance level.0.5 is not an outlier.
31
•
•
I_

I_'
1 A B I C 1 D E i F I G I H 1 l l J I K I L
i Mann-Kendall Trend Test Analysis 1 -
2 User Selected Options
3 Date/Time of Computation 9/24/2013 6:34:39 PM •
4 From File C:IUserslrfoi-d\DesktoplOCSWM-metals.wst — �-
5 Full Precision OFF
- 6 Confidence Coefficient 0.95
7 Level of Significance 0.05
8
9 Cr MW-24 --I - - --- T_—_
-r- - - -
11 General Statistics 1T -
12 Number of Values 5 I 1
13 Minimum 0.5
•
14 Maximum 4.34
•
15 Mean 2.604 I
Geometric Mean 1.739
- �� _
16 _ .. .
�.._..�� Median 3.55 _ � .
�....�-____--_---.------- - -
17 i
18 Standard Deviation 1.942 I ! ' i -
SEM 0.869 -+- -I- -4- ----r- -
19 _ _
20 - --� l - -- i
21 Mann-Kendall Test I -J- -_+__ '- -_
Test Value(S) 9 • ! '
23 Tabulated p-value 0.042
24 Standard Deviation of S 3.958 I I
25 Standardized Value of S 2.021 �
26 Approximate p-value 0.0216
27 _ !
28 Statistically significant evidence of an increasing I
29 trend at the specified level of significance. - 1
i
t
i

- I A I B C D .1_ E H � l J K L
Outlier Tests for Selected Variables
2 User Selected Options --
3 From File C:lUsers\rfordlDesktoplOCSWM-metals.wst --
4 Full Precision OFF —_ - -
5 Test for Suspected Outliers with Dixon test 1
6 Test for Suspected Outliers with Rosner test 1
7
8 I
Dixon's Outlier Test for Hg MW-23
10 -- — _- --
11 Number of data=6 I
12-10%critical value:0.482
13 5%critical value:0.56 1
14 1%critical value:0.698
15 •
16 1. Data Value 3.07 is a Potential Outlier(Upper Tail)?
17 --r -- - — € -
18 Test Statistic:0.488 - i
19
20 For 10%significance level,3.07 is an outlier. —
For 5%significance level,3.07 is not an outlier.
21 -
22 For 1%significance level,3.07 is not an outlier.
r
23
24 2.Data Value 0.344 is a Potential Outlier(Lower Tail)?
25
26 Test Statistic:0.027
27
28 For 10%significance level,0.344 is not an outlier. _
29 For 5%significance level,0.344 is not an outlier. -- - --
30 For 1%significance level,0.344 is not an outlier.
31

I 1 '
A I B C D 1 E F I G I H I I J I K L
1 Outlier Tests for Selected Variables
_—-- 2 User Selected Options
•
3 From File C:IUserslrford1DesktoplOCSWM-metals.wst
4 Full Precision OFF --- --�-__.--. - -_ _ -
5 Test for Suspected Outliers with Dixon test 1 - -
6 Test for Suspected Outliers with Rosner test 1 --- - — -- -- ___
7
-r- --
8 .-__
• 9 Dixon's Outlier Test for Hg MW-23(less 3.07)
10_ _ ____
11 Number of data=5
1 12 10%critical value:0.557 I j
_ 13 5%critical value:0.642
4 1%critical value:0.78
16 1. Data Value 1.74 is a Potential Outlier(Upper Tail)? � l r w
17 -- - �-
18 Test Statistic:0.186 !�— l - •
19
20 For 10%significance level,1.74 is not an outlier.
21 For 5%significance level, 1.74 is not an outlier.
22 For 1%significance level, 1.74 is not an outlier. l 1
_ i_ -a
23 1 I -_•- 1—
24 2. Data Value 0.344 is a Potential Outlier(Lower Tail)? i
26 Test Statistic:0.052 - -- -� 1 -
27 _ ___T------ ' - -
28^For 10%significance level,0.344 is not an outlier. l
For 5%significance level,0.344 is not an outlier. - -
30 For 1%significance level,0.344 is not an outlier. l
= 31 • 1
I

•
A I B C D l E F I G I H I_ I JIK I L
1 Mann-Kendall Trend Test Analysis
2 User Selected Options • -- __.
.,. 3 Date/Time of Computation 9/24/2013 7:14:26 PM _ .— _- -
4 From File C:UserslrfordlDesktoplOCSWM-metals.wst
S Full Precision OFF
6 Confidence Coefficient 0.95 -- --
7 Level of Significance 0.05 —_
8
9 Hg MW-23(less 3.07)
10 -----
' 11 General Statistics --- -_
12 Number of Values 5 - _-- «µ
•
13 Minimum 0.344 _--
14 Maximum 1.74 _--- I
i
Mean 0.927 i
15 --- � - - -_
16 Geometric Mean 0.752 -
17 Medianl0.552 r
18 Standard Deviation 0.641
19 SEMI0.287 - I �-
20 -
i 21 Mann-Kendall Test ! i
22 Test Value(S)'0
Tabulated p-value 0.592 -
23 --- -
24 Standard Deviation of S 4.082
i Standardized Value of S N/A25
`
26 ' Approximate p-value N/A
27 —.-
28 Insufficient evidence to identify a significant I --
29 trend at the specified level of significance.
4

1
ATTACHMENT 6
ADDITIONAL INFORMATION
4

outliers removed from dataset c1S-1,2-dich loroethene includes estimated(J)values
250
200
a
150 __ _..._ _...W _ _.«..«« . �►
O •
a,
.
O
.
100
50 --- - ti..- - ----
0 I T I T I I I I I I i I I I I I I { I 1 I I 1 1 I I I I 1 1 I I i I I I 1 I I I I I I I I I I V
,`yAVo�`�gr `o�' ,° ' `�h��' ,�hr\ 0�104'��O\° ���ooho o°kX y9\o5o�,� ooN‘) ��0`4 ��o1 �A\0:' �o\o ��ti° �,�\ti'' `y4 o4' e).'" 3
16 o ti o 0 0 0 0 0 0 0 0 oh o° o0 0 o0 0 titi o� ti c
MW-15
date sampled

Cr in S-carbonate-water system
2 1 i 0 u 1 1
HCr04"
__ Cr042'
1 ►-_ - ` -- - __
CrSO44 - ` - --
Cr' < CrOHSO - - - -' - - _.
`_ - - -IJ ___ _ Cr203
--
-1
•
Cr
Cr(OH)2
_2 r 1 I I I I I
0 2 4 6 8 10 12 14
PH
•
Figure 3-4 StabiiIity regions of chromium species in the sulfur carbonate water system. Cr= 0.001 M; S = 0.1 M;
C = 0.1 M. (From U.S. EPA, 1984. Mercury Health Effects Update: Health Issue Assessment,
. Final Report. EPA/600/8-84/019F. U.S. Environmental Protection Agency, Washington, D.C.)

rig in b-cammohate-water syste i s
1 5 I I
• HgCO3
Hg0
Hg2SO4 _`_____- ___
Tir
�. , ___ HgS H
-1 .a. HgS22- .A
H9
0 2 4 6 8 10 12 14
PH .
Figure 3-6 Stability regions of mercury species in the sulfur carbonate water system. Hg = 0.001 M; S = 0.1 M;
C = 0.1 M. (From U.S. EPA, 1984. Mercury Health Effects Update: Health Issue Assessment,
Final Report. EPA/600/8-84/019F. U.S. Environmental Protection Agency, Washington, D.C.)

P54 !,2raper Aen Aciates WiEMORANDUM
Nc=7, ral Semites
8090 Villa Park Drive
Richmond,Virginia 23228
[phone] = Fax[phone]
www.daa.com
TO: Mr.Thomas Slusser
NCDENR—DWQ—APS
FROM: Joel C.Daniel,PG
Environmental Services
DATE: 03-26-13
SUBJECT: Orange County Regional Landfill: North(Closed)Faeility
Groundwater Monitoring Program
Summary of Groundwater Sampling Results
NC Permit No.68-01
DAA Project No.R00592-I29 •
On behalf of Orange County Solid Waste. Management (OCSWM), Draper Aden
Associates (DAA) is.submitting to NCDENR—Division of Water Quality—Aquifer Protection
Section a summary of groundwater analytical results pertaining to the groundwater injection
program at the OCSWM North landfill. This data summary is being submitted in general
accordance with requirements of the facility's Underground Injection Permit(W10500293).
Part VII of the Permit states "1. The proposed monitoring plan included in the
application, as modified on December 16, 2010,. shall be followed, All sample results shall be
submitted.to the.Aquifer Protection Section's Raleigh'Regional Office and the Raleigh Central
Office...." However,a schedule for submitting the required data.was not included.
DAA understands from our recent discussions with Aquifer Protection Section (APS)
personnel that a specific schedule of submitting this information has.not yet been.formalized.
Accordingly, based on our recent discussions- with APS personnel, this summary includes
groundwater arialytical,data obtained quarterly from monitoring wells MW-21'S,MW-21D,MV -
23,-and MW-24,through the,most recent quarterly samplingevent(0248-13):
If you have any questions, please contact me by e-mail ([e-mail]) or telephone
Attachments: history tables of analytical data
cc: Mr.Eric Rice (NCDENR .Raleigh Regional Office)
Mr. Gordon Dively (OCSWM- Chapel Hill)
Blacksbrng, Virginia • Charlon'erpille,Viiginir • llampiarrRbads, !Virginia • Richmond,Virginia

CLIENT HE Ca[1NTY OF OAANGE::
FACILI7r ORA�1G1 COUNTY REOJONAt LANDFILL NORTH FACILIT
LQCA11ON CHAP I ILL NDRT}1 C,4ROLIN,�
"PROJECT GROl]NOWATER MONITORING PROGRAIV -
HISTORY OF CHEMICAL ANALYSIS-
i s -ORGANIC CONSTITUENTS ,, ;I
.-:Sam I . 5,,,, , -•-
Caastltuent �. MW]b MW 16 INW]7 MW 20 MW 21d, N[W 2Ts MW 22 MW 23 MW 24 ; 3.DR SWSL: QA1DC :
A� i
Gate` ., ..
acetone 04H 7190
MCL- • 0711.1/9i
FBAC-100(SWSL) 05/28/92
NCGQS=6000(2I Std) 06/30/93
2L Std=700(pre-Jan.2010} 11/04194
2L 81d=60ff0(Jan.2010} i2J2012 k _
02/02195 ' _
03/13/95 t74 i - _
11l15195
07l25196 1
02/25/97 a
M
09103197
05102/98
11102198
04126199 .
11122/99
05123100 i ,'.
i
11129100
051051t11 x� r_
1
11/13101 I- - - ti - - ti •-°
05104102 L.:,,,
0311?103
06/18103 '... w
r
12108103
06122104
11/30/0' ., ,,,
06/01I05
11IO2l05 •4 -
05J2210fi 4 _
11/22/06 s. ...L_._ z. k
r 3 r
06112107
1 +
i 4 rs-Y_- .yLl<i '.. 'e 4 - i .t -
06)17)08 <1.2 2 J <1.2 <1.2 <1.2 <1.2 <1.2 <12 8.1 J 1.2 100 ic,cc
11/05108 <1.2 <1.2 c1.2 <1.2 c1.2 <1.2 c1.2 <1.2 <1.2 1.2 100
45H9109 <1.5 <1,5 <1.5 12J <1.5 <1.5 c1.5 <1.5 <1.5 1.5 100
11/I81a9 <3 <3 <3 9.5 J <3 1.5 J <3 <3 <3 3 100
06121/10 c1.5 <1.5 <1.5 <1.5 <1.5 c1.5 <1.5 <1.5 <1.5 1.5 100
11I18110 c1.5 <1,5 <1.5 <1.5 <1..5 <1.5 <1.5 <i.5 <1.5 1.5 100
injectEon event{03-29-11} 05/23111 c1.2 <1.2 <1.2...,-.„..: <1.2,.,:. <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
08l23N1 .- c1.2 <1.2•
'' <1.2 <1.2 i.2 100
injection Bvenl(09.28-11} 11)15/11 c12 <i.2 <1.2 <1.2 <1 2 d•2 <1.2 <1.2 <12 1.2 100
02121)12 <1.2 <i.2 _:. <1.2 <1.2 1.2 100
injeclion event(04.14-12) 06I05l12 <12 4 <1.2 �1.2 4.T J c12 <12 <1.2 1 <]2 <1.2 12 100
10I09I12 • = <1.2 <],2 _ <1.2 <1.2 1.2 100
njecttonevent(09-1a-12) 11I12r12 <12 <1.2 c1.2 <]2 <1.2 <1.2 <1.2 a]2 <1.2 1.2 100
02J18/13 • c12 <12 v c12 c].2 ].2 100
1

f
t �°ti!e
,r ti; 1 y .,; ,,,,,, , CLIENT`THE,COUNTY OF;UFIANG>=' � ` '' -r ti'�i} 1-�� r� 1• 4
�": FACILJ'�Y ORA1�1GE C0UNT1(REGIONAL LANDFILL NOph .4 .1..kTI( } 1, :. Y
�''' LOCATION CHAP.LMILL�NORTT1,CAROJ,INA . ?
k.... ..,_ ti ' ' ' PROJECT GROUNDWATER MONITORING PROGRAM 'i,' x S bl 1
1 'I - I 3 Z.I L i 1
I .NISTOFIYOFCIj MiQAL rIAl.1(S!5 '' ' �' 1 ~''I ,;
♦.' } I I } ; k 1 t :„:, 11I 1 Ih, I, 4 1
1� ',1 ORGANIOC .� 4 M14 II I�1 I 11 � 1 I 1-
Sample �M
Constituent MAW 15 MW 16 MW 17 MW 2D MW eta iMW 21s 4MW,22 MW 231 MWf24 l Ok SWSLIi r QNQG e. .,. ,: Date'-:_:,: -„ ,.", 1...,,s,.. ,.r , „ „
benzene 04/17/90 = <5.0 <5 0 = f 2 JN `� , � d
MCL=5 07/11/91 ,;.',,,, <5.0 <5 0 ti + at 1, r ti, -
w
FBAC=1(SWSL1 o512B192 c5.0 c5.0 c5 0 • • • . r 7 rL„'_ r
NCGQS r 1(2L Std) 06/30/93 <5.0 <5.0 <5.0 �`
11/04/94 <5.0 <5.0 <5,0 12 1 a} - y' 4 ' '-' ti Ind
12/20/94 <5.0 <5.0 <5.0 <5 0 } }
02/02/95 <5.0 <5.0 <5.0 13 1 t i'1 ; 11,
03/13/95 <5.0 <5.0 <5.0 8
ti
11/15/95 <5.0 <5.0 <5.0 8J iy }1 Ih 1 III I 1 it vi 1 Is
t r
07/25/96 <5.0 <5,0 <5.0 8 " 1`1' i4 1 i-. 1 11 11'i 1 ..' I° r 11 ;'
02/25/97 <5.0 <5,0 <5.0 9
till 4 S4 1 L S 11
09/03/97 <5.0 <5.0 <5.0 8 11 ''''' I' I 1 1 •'i 11 1 11I '
05/04/98 <5.0 <5.0 <5.0 6 41 1'1 1
- 11/02/98 <5.0 <5.0 <5.0 6
04/26/99 <5.0 <5.0 c5.0 7 ti 4
11/22r99 <5.0 <5.0 <5.0 6 _ - ' _ o ,. 1. i `- 5
05/23/00 <5.0 <5.0 <5.0 7 <5.0 <5.D <5.0 4'.t q
ti r a0. �
11/29/00 <5.0 <5.0 <5.0 7 <5.0 <5.0 <5.0 I-
06/05/01 <5.0 <5.0 <5.0 7 <5.0 <5.0 <5.0 7 r7
11/13/01 <5.0 <5.0 <5,0 7 J <5.0 <5.0 <5.4 4I ; - : cc
06/04/02 <5.0 <5.0 <5.0 6 <5.0 <5.0 <5.0 i'I t 1.1} 111'
03/12/03 <5.0 <5.0 <5.0 6 J <5.0 <5.0 <5.0 1 SI Iti 11 'II I 1 , , ht
06/18/03 <5,0 <5.0 <5,0 6 J <5.0 <5.0 <5,4 1 1 1 r ' ;,'�` p` , 1 h Ic,cc,ss
12/08/03 <5.0 <5.0 <5,0 5 J <5,0 <5,0 <5.0 "1'n 1, ` :1..,..,,,I.: ;;;:aI ic,cc
06/22/04 <5.0 <5.0 <5,0 6 J <5.0 <5.0 c5.0 . 1 1 4 1 . , iti 8. it IC,CC
1
11/30/04 <5.0 <5.0 <5,0 <5.0 <5.0 <5.0 <5.0 '
06/01/05 <5.0 <5,0 <5.0 <5.0 <5.0 <5.0 <5.0 r '
11/02/05 <5.0 <5.0 <5.0 7 <5.0 <5.0 <5.0 � YI r E1,
05/22106 <5.0 <5.0 <5.0 6 <5.0 <5.0 <5.0 -5 i, `- , ,''; :'.;::::-:::.:Al*:
11/27/06 <5.0 <5.0 <5.0 5.5 <5.0 <5.0 <5.0 �- :5,;,1,, .:,;5 !' :i;.r:i:` a[:;, a.... :5: •;..
06/12107 1.4 0.5 J <0.1 5.6 <0.1 <0.1 <0.1 <0.1 ::'? :'''p; 0.1 1
12/12/07 1.3 0.4 J <0.1 4.4 <0.1 <0.1 0.5 J 0.4 J r,i,,, ; ; . 0.1 1
06117/08 1.2 J 0.6 J <0.1 5 J <0.1 <0.1 0.3 J <0.1 <0.1 0.1 1 Ic,cc
11/05/08 1.4 0.4J <0.1 5.2 0.2 J <0.1 <0.1 0.3 J 0.2 J 0.1 1
05/19/09 1.6 0.67 J <0.2 5.1 <02 <0.2 0.49 J <0.2 <0.2 0.2 1
11/18/09 1.4 0.07 J <0.4 5.2 <0.4 <0.4 0.71 J 0.47 J <0.4 0.4 1
05/21/10 0.8 J <0.05 <0.05 5.2 <0.05 • <0.05 <0.05 <0.05 <0.05 0.05 1
11/18/10 2 0.60 J <0.05 5.8 0.4 J <0.05 0.69 J 0.52 J <0.05 0.2 1
njectfonevent(03-29-11J 05/23/11 1.7 <D.68 <0.68 4,4 <0.68 <0.68 <0.68 _ <0.68 <0.66 0.68 1
08123151 __ <0.68 <0.68 <0.68 <0.68 0.68 1
linJecticn event(09-26-11) 1111511 1 1.5 c0.68 <0.68 52 <0.68 <0.68 0 74 d c0.68 <0,66 0.68 1
02121l12 . <0.15 c0.15 (7.40.368.1
43 J <0.15 0.15 1
njection event(D4-14-12) 45105112 7.1 c0.15 <0.15 4.3 <0.15 <0.15 0.5 J <0.15 <0.15 0.15 1
10109/12 ._-..'___: _ .,:_ U- __-, <0.15 <0.15 i <D.15 <0.15 0.15 1
injection event(09-13-12) 11/12/12 1.5 OAS J <0.15 5.5 <0.15 <0.15 0.79 J 0.49 J <0.15 0.15 1
02/18/13 _, .- 11,,, <0.15 <0.15 . _.,_.,,. <0.15 <0.15 0.15 1

.
s :I
CL11 NT TH COIN OF ORAI�G
FCILITY CHANGE CQGN 111 REGIONAL F ANDPIL1. NORTH FAQIL[• t'Y 4 :<
LOCATION CHAPELHILL NORT1!QARQLINA
PROJECT GFIOUNDWATERMONITOI3INGPROGRAM
:4
i '. . ti __ HISTORY OF CHEMICAL ANALYSIS
ORGANIC CONSTITUENTS.:::• ', .....'-. . ..5:
Sample
Constituent MtWy 15 MW 1fi MW 17 MW 20 MW 21d #NW 21s MW,22 .lW 23 MW�24 LOD SWSL�' QAtQCe::
:15ate: :.
bromomethane D41t 7/90 '
MCL m • 071t 1/91
FBAC 10{SWSL) 05/28/92 '
21
NCGQS=10(GWPS) 06/30/93 3+ ti
GWPS=Nl:(pre-Aug,2019y 07/11/94 - - `' -
GwPS=1t3(Aug.2t110) 12120/94 -. - _ ▪ _ - -- ° -' - --. 4 . ..-
02/02/95 .. -...
03/13195 • r ,, - r' x "k .� ti
t
11/15/95 s.
07/25/96 ""s
02/25/97 ...
09/03/97
05/04/96
11/02/98 :.
04/26/99 5
11/22/99
05/23/00
0 051 1 - - - - - -
1112310i ti ▪ 4 s i �13'�� �
.23 - 4
03/12103
06/18/03
12/08/03
06/22/04
1 i130104
06/01/05
11/02/05
05/22/06 , .....,.. ti y w
11/27/06 4 5
06/12/0715"1 ,::->:- _ .- .
12J12107 ' t. ; ti= r ti 4
}
11/C16/05/08
05/19/09
11/18/09 <4.49 c0:49 <0.49 1.5 J c0.49 <0 49 <0.49 1.6 J �0.49 0.49 10
06/21l10 <0,28 a0.28 <0.28 <0.28 c0:28 <0.28 <0.28 <0.28 <0.28 0.28 10
11/18/10 <0:49 <0.49 <0.49 <0.49 <0.49 c0.49 <0.49 <0.49 c0.49 0.49 10
injection event{03.29-11 j 05/23/11 c0.58 c0.58 cb.56 c0.58 <0 5$ <0.58 <0.58 <0.58 0.58 10
08/23/11 ,,. <0.58 <0.58 <0.58 <0.58 0.58 10
injection event{09-28-11} 11/15/11 <0 58 <0 58 <0 58 <0 58 <0.58 <0.58 c0 58 <0.58 <0.58 0.58 10
02I21l12 ,! � _•..:::....::._:..:.::_:: _ .:___:;::: :__::: <0.14 c0.14 ._::a.-- <0.14 c0.14 0.14 10
nject'san event{04-14-12} 06I05l12 <0.14 <0.14 <014 <0.14 <0.14 <0.14 <D.14 <0.14 <0.14 0.14 10
i Dl09112 k „' _ <0.14 <0.14 ▪ <0.14 <0.14 6.14 10
injection event{09 13 t 2} 11/12/12 <0.14 <0.14 <0.14 c0.14 <0.14 <0.14 <0.t 4 <0.14 <0.14 0.14 10
012/18/13 ▪ ... • <0.14 <0.14 ▪ <0.14 <0.14 0.14 10
L

" ti CLIENT' THE COUNTY OF ORANGE'"y ., " y{ :i "y;
FACILITY ORANGE COUTY REGIDNAL LANAFIU NORTH EAC(1:1TY ;�
�1 .� N va _ -LOCATION,.CHAP LWLL.NORTk#C- OLINA '` y- - .'
� PROJECT GROUNQWATER MONITORIt�Q PROGRAM ti" 4`y *�
y
t
t ltlu t __tit " `5� 7" I I 7 Y 11 I L�, 3 i III it L"
Is'�QPYOt. MICALAkA(.XSJS "
RGANIC CONS UE T3 y 1 11 °,h i ,� ,' 11 ,
if 1 I I �''�Y 1 }I„I I 'Q �', � I 111 1:� r 11 11 �1. I I 11 �111
��, 17' Lti
. Cons1114Bnt Sa p¢ MW 16 MW'i8 MW 17 MW 24 MW 3.1d MW 21, MW22 MW 23 MW24 LOT) a SWSL1..,,,,,,,,,..„,,,,,,,
OA/QC
DateI„!1., ...,..�. .�.+„y,, ... �.03'!,.,. , ,! .,.. '::-. ,,,S,kyP, � ,....,. .. .. .. ..,.. .1 ..„,.,v. .. ..... 3,ra ., ,, ,I,.. ...... ...... ..�,.,,. .,. ,,I{,., � .N..r,.,,,.,.
2-butanone 04/17/90 ' r �l 4 i i4 :.� 'f'1r;i;_
MCL. • 07/11/95 w xe', . y �-� " " L
FBAC a 100(SWSL) 05/28/92 • 4 } x " , " '� }7'
NCGQS=4000(2L SW) 06/30/93 " ; ; y i
2L Sid r.4200(pee-Jon,2010) I1/04/94 k y '� N9A • '" � ' ' -", ._ _ ':4 y '" y
2L Sid:4000(Jan-2010} i212019b " �' hi h ,� a z -
02/02195 1 I ,. * i i i a
03/13/95 , 5 a I I
11 H 5/95 i 1 1/ 1„'I 1 y 1, „`ti,n 1 11 h i 1 i r 11 111 I I 1- I r
07/25/96 ` r 1 y I f 4i 1
11 02/25/971
07/03/97 1 trL I l I{11 t 1 L} { ' N 'Iii 1 r lr FIr
05/04/98 - 13 L L
11/02/98 a '1" '" 4
04/26/99 $..,_, � �{ - ' �"�y ' ��L�,, li 19 " -r3,y : 1
11/22/99 _ :w - __
_>:_ .y,
06/05/01IIIIIIIIIII 101:111rIlif:fi
4 L w ", r � �- r7 � ,- ti stir11/13/01 'II 'Y' 1L 1'1 11
ii
11/13/02 I "i
a
03/12/03 I i i 1 i 1 I7 13 III L I1 i
06/18/03 ti r ' ,, u , y It
12/08/03 I 1 , 1 1,
0fi122104 4 1 i 1 33 F 1 11
11/30/00. "
06/01/05 LI 1 " 1 'i 1 ' -
11/02/05 "' 5 i
05/22/06 F • r y ,ii / "
11/27/06 y { i - ti 5 i -4 c }s 1 it \ } '
12/12/07 ..._....3. .............„ '-; J ..,...,3 ,.��...., ._.t:_1: 1.,.I v,.._,.'
06/17/08 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 0.9
100 lc,cc
11/0151/089 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 0.9 100
05119109 <i <i <1 <S <1 <1 <1
<1 <1 1 100
11/18/09 <2 <2 <2 <2 <2 <2 <2 <2 <2 2 100
06/21/10 <1 <1 c1 <1 <1 <1 <1 <1 <1 1 100
11/18/10 <1 <I c1 <1 <1 <1 <1 c1 c1 1 100
injection event(03-29-11) 05123111 c1.3 <1.3 e1.3 <1.3 <1.3 e1.3 <S.3 <1.3 <1.3 1.3 100
08123111 "' _ .- <1.3 <1.3 -1,-' <1.3 <1.3 1.3 100
injection event(09-28-11} 11/151i1 <1.3• c1,3 c1.3 c1.3 c1.3 <1.3 <1.3 c1.3 <1.3 1.3 100
02121/12 ti+ .. _.._ <1.3 <1.3 c1.3 <1.3 1.3 100
injection event(04-14.12) 06105112 c1.3 <1 3 <1.3 <1,3 <1.3 <1.3 c1.3 c1.3 c1.3 1 3 100
10/09/12 c1.3 <1 3 tj' c1.3 d.3 1.3 100
injection event(09-13-i2) 11/12/12 <1.3 - <1.3 <1.3 <1'3 <1,3 <1.3 <1.3: 1.3 100
n
02/18/13 ;lm;.. <1.3 <1.3 :,,:,ici c1.3 c1.3 1.3 100

CLIENT 7HE COUNTY OF Er I Af GE
F�GIL[TY Oi kA/� E1COUN Y}T GIbNAL J,ANJ}FILL NORTH FACJLI
•
LOCATION-CHAPEL'HILL NORiii CARO1 113A f
i PRQJE�t GROUNDWATERMON1TO1INQPtaGRAM '', }0,4k
? 4 - 11I5ToW OF CHEMICAL ANALYSIS t war.. _
_ -- URGAN(b QONSTITUENTS ▪ -- -
ti.r�r_ti,.___. __^'.._. ._..'. .-..: 14.._....'_. __. ..r ,....- ..4 Y:v:r_S .Z .L'_t.L'. ,S!-•; - :▪ fir:
Sample
Conslltueat MW 15 MW 7b NIW 1y MSU 2D INW 21d',' M. 214 MW 22 MW-23 hAW 24 LQD SWSL DAI{QC
�.. .�:. .:.: ... :.... -,. Dale ..� .::. ... .,.. �.. ... .... ,...... .
carbon disulfide 04/17/90
MCL= 07/11/91 :` KL'q ii i 1 i ; i,1 }
FBAC=100(SWSL) 05/28/92 �Sv f' t ` Fa
NCGQ5=700(2L 51'd) 06/30/93
11104I94
12/20/94 �y _ 3L 4 '` ski .i 4 - ti ti
O 2102195 - - ,
03/13195 ; '-r �
11/15/95 ti, ,_; i ti �
07125l9fi :it � . ..�: }�v:
02/25/97
s
09/03/97
05/04/98
11/02/88
04/26/99
11/22199
11/29I00 3,00 �� i w
O6/05/01 ••lq; 5
11/13/01 ti�
tihti �}ti s
/02
03/12/03 .<
06118103 :.. ii
12/D8/43
06/22/0O
11/30/04
06/01/05
11/02105
05I2210s f.
j
1 1/27/06 f..,4 �, ri - i- 4 +,. tiS 1 --' _ ' 5 '
06/12/07 .-• s -xY, r-. 1 4rih.v- • - -
]2112/D6 <0.5 <0.5 <0.5 1.2 J <0.5 <0.5 <D▪.5 c0 5 0.5 100
D8!]7108 <D.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <DS <0.5 0.5 100 Ic,cc
11105108 8 J c0.5 c0,5 ].2 J <0.5 <0.5 1 J <0.5 <0.5 0.5 100
06/04
O5119/09 c0,54 c0.54 <0.54 <0.54 <0.54 c0.54 <0.54 <0.54 <0.54 0.54 100
•
11118/09 <0.54 c0.54 <0.54 <0.54 c0.54 <0.54 <0.54 <0.54 a0.54 0,54 100
05/21/10 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 c0.54 0.54 100
11/18/10 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 c0.54 0.54 100
injection event{03.29-11) D5123!]1 <1.5 c1.5 <1.5 <1.5 <S.5 <1.5 c1.5 c1.5 <1.5 1.5 100
D81231St <1.5 c1.5 i <1 5 c1,5 1.5 100
injection event{09-28-11) 11/15/15 <• 1.5 <1.5 d.5 <LS <1.5 <1 5 <1.5 c1.5 <1.5 1.5 100
O 2/21/12 � _ s <1.5 <1.5 <15 c1.5 1.5 100
injection event{04-14-12) 06/05/12 c1.5 c1.5 c1•5 <1.5 c1.5 <1.5 <1 5 L <1 5 c1.5 1.5 100
101091]2 " " • c1.5 <1.5 '=-'3-'= <1.5 <1.5 1.5 100
•
injection event(09-13-12) 11/12/12 <1.5- .. <].5 <1.5 c1.5 c1.5 <1.5 .aL5 <1.5 c1.5 1.5 100
02/18/13 :, <1.5 <1.5 <1.5 <1.5 1.5 100
1

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•
f Y 4`c1
r -GI _ ,r r^`a-
J c7rn c7 c7 c7 c7 c7rn tn 17 M mc7Mmm
d60 -
..1if f? �. fr frFr T �.t _4y i!f:_ - - ''' 'SS t t.,
{
r _ _ _ { .;r �,. •-•-•-N N Ann n AAA AA
0 C C O N
r F r.'
64
rJ:
N P t. rr t AA# { l f- A K 7 V r Z
ti. .t•:,..._ _O A rn N n o n n A
`:3'r r,i�i.'::=F.�� �rr:F:.: ' - - - - - _____ - - ,-'.:v:r":':??'��._�:.�.:a.�:� �';s^� : =.r^;:_�r^.: �i'::'i;.� L'�v� COO O O O�
rr:r.•.r,,. - %;f{-.r: r_ _ _^.�r. r-....;....s`frr ...r,. ,.. r V p pp
O V V V V Y V V 4
-!I.^ V
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F4-CILITY ORANGE COUNT(REGIONAL LANDFILL NOR11HFACl41Tl`
.:.:_, LOCATIQTI�CHAP€L HILL,N�#Rl CAROLINA ti' ti 5 .
PROJECT GROUNDWATER MONITORING PROD_ RAM ti 4 q ti
- HtSTOHYOI?;CHEMICAL-ANAt. SIS �ti
sr sORGAN[C'CO NSTITUENTS
-
Sample ,, _ :'
Constituent .. W M 1S MW 16 MW 17 2G MW 21d, MW 21s MW22 MW.23 N1VIIx24 LpD SWSG 4A/OG'chloroethane 04/17/90 <10,0 <10.0
MCL=♦ 07/11/91 , ; ;, ,, <t0,0 <100 • K a 5 '
,FBAC.10(SWSL) 05/28/82 <10,0 <10,0 <10.0
NCOQS.3000(2L Std.) 06/30/93 <10,0 <10.0 <10 0 ,.
32L Std..NE(pre.Ja n.2010) 11104l94 <10:0 <10 0 <10.0 <10 0 ' ,r ' ''r '•
I2L 51d=$000(Jan.2010} 12120/94 <10.D t10.0 <10.0 c10 0 --v' �- i
02/02/95 <10.0 <10.0 <10.0 <10.0 = _
_ _ .- Ura•'-_a •:�: ' - --� FY'si;;"-"-;1ni:i-! _ _ _
03/13/95 <1 D 0 1
11/15/95 <10.0 <10.0 <10.0 <10.0 zg.ii:^
07/25196 <10.0 <10.0 <10.0 <10.0
02125197 13'3 <10,0 <10,0 <10 0 r r 1 ,, `` a r r
{
' 09/03187 <10,0 <1110 <10.0 <10 0 ,';,.
05104/98 17 <10.0 <10.0 <10 0
11/02/98 12 <10.0 <10.0 <10.0 r
04126199 13 <10.0 <10.0 <10 0
•
11/22199 10 <10,0 <10.0 <10.0
05/23100 <10,0 <10.0 <10.0 <10.0 <10.0 <10,0 <10,0 r
11/29/00 <10.0 <10.0 <10.0 <t0.0 <10.0 <10.0 <10.0 4, ��� Rui, ;
06/05/01 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
11/13/01 <10,0 <10,0 <10,0 <10.0 <10,0 <10,0 <10.0 - �''- 4 _ 4
06104/02 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 - ,-Ei ,._4 V=:
03112/03 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
06/18/03 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 ,
12/08/03 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10,0 ta y
06/22104 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10,0
11/30/04 <10.0 <10.0 <10.0 <10.0 <10.0 <10,0 <10.0 1 t
06101/05 <10.0 <10.0 <10.0 <10,0 <10.0 <10.0 <10.0 :.,; ;,..:,,, g ...,.: „ .
1 11/02/05 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
05/22/06 <10.0 <10.0 <10,0 <10,0 <10.0 <t0,0 <10,0 �` ;; r Y,.
11/27/06 <10.0 <10,0 <10.0 <10,0 <10,0 <10,0 <10.0 x - ,,. 5. - :,I;
06/12/07 17,1 3.3 J <0.1 1,7 J 7.7 J 5.8 J <0,1 8,9 3 0.1 10 !
12112107 2.9J 0,7J <0.1 0.5J 1,3J 0.5J <0.1 2,4J = - 0.1 10
06/17/08 4.8 J 1.4 J <0.1 0.6 J 2.2 J 1.7 J <0.1 2.6 J <0.1 0.1 10 ic,cc
11/05/08 3.3J 0.5J <0.1 0.4J 1.5 J 1.2 J <0.1 1.9J 1.8J 0.1 10
05/19/09 4,6 J 0.91 J <0.3 0.4 J 2.1 J 1.8 J <0.3 1.9 J •<0.3 0.3 10
11/18/09 3,3.1 0.79 J <0.3 <0.3 3.5 J 3 J <0.3 1.8 J <0.3 0.3 10
06/21/10 2.3 J 0.68 J <0.18 <0.18 1.1 J 0,83 J <0.18 0.95 J 0.83 J 0.18 10
11/18/10 2,5J 0.77J <0.3 <0.3 1,7J 0.76J <0.3 1,8J 1.3J 0.3 10
injection event(03.29.11) 05/23/11 1.4 J <0.75 <0.75 <0.75, <0.75 <0.75 <0,75 <0.75 <0.75 0.75 10
08/23/11 1.7 J 1.6 J .,_' 2.2 J 1 J 0.75 10
'injection event(09-28-11) 11/15111 1.7 J <0.75 <0 75 <0 75 0.9 J <0.75 '0.75 1,3 J <0.75 0.75 10
•0212t112 1.2J 0A8J ,t y 1.5J 0.81J 0.23 10
injection event(04-14-12) 05/05/12 <0.23 <0.23 <0.23 <0.23 <0.23 <0.23 <0.23 <0.23 <0.23 0.23 10
10/09/12 = -_y- ' f:` _ _ <0.23 1 J =__ <0.23 1.2 J 0.23 10
.injection event(09-13-12) 11/12/12 2.5 J 0.75 J <0.23 <0.23 1.5 J 0.68 J <0.23 n 1.6 J 1.2 J 0.23 10
02Ji 8113 :, �.: 1.4 J <0.23 1.3 J <0.23 0.23 10

•
Sti ,<. ti
CGENT-THE COUNTY OF ORANGE r Si
.. 4 rfi,TR,9Fv1peicoINTrfE91oNp ,LNDFILL:klbTriEFACILIM4ff-i 4 E . LL"';41l,.:7A',„'::.:f',.'.',.,..-
LOCATION CHAT ELHILL NORTH CARO}.IN ti
'y iI PROJECT GROUNDWATER MONITORING PRO RAM ; h'i i i
e
4 L;;. 1 - - 4 `- 4 I'` 4 I '1 1 i
v is ,
HI�TQI d} 08E IICAL A 1 LYsi5 ,II
w ! N * : , lii i6k;fedakit)6it6f *; fiM $ Ii; 0f. :0 • §8107 ''Iil'q4;'i47-•11.'c:7,1:;"-,•':i,:,'l
Constituent Sample.A.- MW 15 MW 16 MW 17 iMIW 20 MW 21d MW 219'. MW-22 MW 23 MW 24 I.OD SWSL a QA1QC
;,; , Date r'
1,2-dichlorobenzene 04/17/90 4 ,.` y ,
MCL-600 07/11/91
F9AC=5(SWSL) 05/28/92 ��
NCGQS=20(2L St'd) 06/30/93 v- r r ry
2LStd=241pre-Jan.2010) 11/04/94t. } - y '
Y. -k '•_ - i i r 'v /1 Fl l- 1
2LBtd=20{Jz3n.2010) 12/20/94 �
02/02/95 w y �'i 11 v . /11 I F 4 15 1'
03/13/95
11/15/95 1 r l 'iI 1,1} 11 1,r 14'Ir 1 i 1 II ill 11' t t II 11
07/25/96 ,1" 1t i'tr 1 1 14 ' II' 1 i 1 I 111
02/25/97 1 I 1
09/03/97 'I'r 1 1; 1 ilr kr
05l04/98 r x ` r ti.
11/02/98 ...;::::::
t
04/26/99 1 } V i,
-::':=::ems�-�
15/22/99 , ti y r`.1r i 1 a' ' 11 y '
05/23l00 ` x '
11/29/00 ' '' i k } } ti �t :, i�
06/05/01ti to ,
11/13/01
06/04/02 l'' l
03/12/03 7 , I - 1i; ' '''- ii'i 4r St
11 t i 1 1 5 r 1 I" 4 -1 1 1 �
r
06/18/03
i- 4 1,1 l i 1 1 4 I II 1}
12l08143 lc,cc
06/22/04 WA § 4i,Tgr IS:*, 8 ' le'ce
11/30/04 , y� i
06/01105 4 1 y 1"r 4 1g ,4
11/02/05 4 ti Iv y a_ s ' s t tau w ti
05/22/06 , , ' , ,ti
11127/06 s . ,, rR y 5 q, i i, - rSS ly
12,06/12/07 • �. >:. - 4 .,':. .i ;. ..-''i, I u,.,
12/12l07 0,5 J <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1
06/17/08 0.4 J <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 5 Ic,cc
11/05/08 0.4 J <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 5
05/19/09 0A6 J <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 0.27 5
11/18/09 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 0.27 5
06/21/10 0.54 J <0.052 <0.052 <0.052 <0.052 <0,052 <0.052 <0.052 <0.052 0.052 5
11/18/10 0.61 J <027 <027 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 0.27 5
injection event(03.29-11) 05/23/11 0.66 J <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5
08/23/11 '_:=s>'":':' ',:':';`; :,. <0.11 <0.11 <0.11 <0.11 0.11 5 -
injection event(09-28-11) 11/15/11 0.66 J <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5
_02/21/12 _ _ Y, =>� <0.19 <0.19 _ yti z�= <0.19 <0.19 0.19 5
injection event(04-14-12) 06/05/12' 0.5 J <0.19 <0.19 <0.19_ <0.19 <0.19 <0.19y <0.19 <0.19 0.19 5
10/09/12 _ - .4<0.19 <0.19 'i . 5 <0.19 <0.19 0.19 5
injection event(09-13-12) 11/12/12 0.56 J <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 5
02/18/13 . ,,,; ,,h1,•.,, <0.19 <0.19 <0.19 <0.19 0.19 5

CLI'NTF.THE COUNTY O0 ORANGE
`'` F4CIL(YY"ORANGE COU iTYREG{OVAL LANDFIL NQ RTH FACI4tT1t
LOCA,TIO}� C1IAPEL)1ILL,NO t1`y CARD JN 4 k `w .
PROJECT GROUNDWATERMONITORINGPROGRAM;
- - v z
k1ISTORY OF CI EM1CAL ANALYSIS ..:... .: 4 k3a max .
ORGANIC CON531TUENTS`:
:•: •:
Sample
Canstltuent MW 1S MW 16 MW,17 MW 20 MW 21d MW• 21
0
MW,2x k1W.t3 MW44 LOD SWSL AA(QC
t,4-dichlorobenzene 04/17/90
MCL=75 07/11/91
FBAC n 1{SWSLI 05/28/92 ti
NCGQS=6(2L Ski) 06/30/93
2LStd=1.4(nre-Jan.2010j 11/04/94 <5.0 c5.0 - c5.0 <50 i `� S▪ . '. `'`` '*
i;
21Std=6(Jan.2010j 12/20/94 <5.0 <5.0 <5.0 c5.0 ;yx y ti ` x
02/02/95 <5.0 <5.0 <5.0 <5.D . •••ixfj:•• -- -
03l13l95 <5.0 <5.0 <5.0 <5.0 1:1;111.1?1:iE21 -- - - -
' -
15/15/95 <5.0 <5.0 <5.0c5.0 � ����, �, i.ti x a •, 4 •, k-
07/25/96 <5.0 <5.0 <5.0 <5.0
02/25/97 <5.0 <5.0 c5,0 <5.0 • ^ `r,
09/03/97 <5.0 <5.0 <5.0 <5 0
02/25/07 <5.0 <5.0 <5.0 <5.0
11/04/9898 6 R <5,0 <5,0 <5,0
04/26/99 <5.0 <5A <5.4 <5.0
11/22/99 <5.0 <5,0 <5.0 c5.0ilt• Il
05/23/00 c5,0 <5,0 <5.0 c5,0 <5.0 <5.0 <5,0 i " r
11/29/00 5 <5,0 <5.0 <5.0 <5.0 <5.0 <5.0 _ 4 -y .W L
06/05/01 <5,0 <5.0 <5.0 c5.0 <5,0 <5,0 <5.0 -____ _ _ -__-- _-_ - __
1SI13101 <5A <5.0 <5.0 c5.0 <5.0 c5.0 c5.0 o +
06/04/02 5 J <5.0 <5.0 <5.0 <5,D <5.0 <5.0 ,`kj`;_; ;;',; sr
03/13/03 5 J <5.0 <5.0 c5.0 <5,0 <5,0 c5.0 tit
06/18/03 <5.0 c5.0 <5.0 <5,0 c5,4 <5.0 <5.0 °
a 4
12/08/03 5 J <5.4 <5.0 <5.0 c5.4 <5.0 <5.0 - Ic,cc
06/22/04 5 J <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 i4 I i lc.cc
11/30/04 <5,0 <5.0 <5.0 <5,0 <5.0 <5.0 <5.D ,• r „,
06/01/05 <5.0 <5.0 <5.0 <5.0 <5.0 c5.0 <5.0 F..,- ,
111021D5 <5.0 <5,0 c5.0 6 c5.0 c5.0 c5.0
05/22/06 6 <5.0 <5,0 6 <5.0 c5.0 <5.0
11/27/06 6 - <5.0 <5.0 5 <5.0 <5.D <5.0 f 4 f
06112R17 5 <0.1 <0.1 6 1.4 0.6 J <0.1 ....�==1.9.: 1-. . ?'•'::'•r�"0.1::i4 :1 _._,
12/12/07 5.9 QAJ <0.1 6.1 1J 0.2J 0.97J i.6 0.1 1
06/17/08 5.2J 0.5J <0.1 6.4J 1.4J 0.3J 0.8J 1.7J <0.1 • 0.1 1 fa,CO
11/05/08 5.3 0.3J <D.1 6.2 1.4 1J 0.2J 1.9 1.1 0.1 1
05/19/09 6.8 0.47 J c0.38 6.9 2 1.7 1.2 2.4 1.5 0.38 1
11/18/09 5,9 D,55 J <0.38 6.6 1.9 1.8 1.9 2.9 1.4 0.38 1
06/21/10 6.2 0.54 J <0.1 5.9 1.8 1.4 1.1 1.3 <0.1 0.1 1
11/18/10 7.1 0.75 J <0.38 6.6 2 <0.38 1.1 2.8 <4.38 0.38 1
njectEon event(03.29-11) 05/23/11 6.3 <0.79 <0.79 6.9 2 tl.93 J 1.3 2.3 <0.79 0.79 1
08/23/11 2.1 1.3 3.2 c0,79 0.79 1
injection event(09-28 11) 11/15/11 7 4 c0 79 <0.79 6'7 1.8 c0.79 2 3,1 <0.79 0.79 1
02/21/12 _.,,•, - 1.8 0.76 J 2.9 <0.19 0.19 1
ti
injection event(04-14-12) 06/05/12 4.5 <0.19 <0.19 4.8 <0.19 <0.19 <0.19 c0.19 <0.19 0.19 1
10/09/12 =' = `' '' 1.6 1.3 3.1 <0.19 0.19 1
injection event(09-13-12) 11l12112 7.1 0 64 J <0.19 7 8 2.2 <0.19 21 3 3 0.48 J 0.19 1
02/18/13 2.2 4.77 J • _; 2.5 0.59 J 0.19 1

,
▪ CLIENT▪ 7HE COUNTY OF ORAt3Gfi , r` 1 u 1 '1
F ti FACILI Y ORANGE COU EG10 AL LANDFILL NORTH FACtLITY ' 4 - ti ff 4 r
LOCATION CHAPEL KI L,NORTH CAROLINA 1 ▪ h 4
PR03ECT GROUNDWA-tER MMlONITniiiwi P(}OGRAM } r i.
11 -;:, 1 1 i- , . i r 1� 1 1 11 }II 11 I i11 i
OR C MI AN H15T YOF HE CAL AL`(SIS
i Ef3 ,
ORGANICCONStI1tU tS
1 �1 1 I 1 11, 1t1r II
Semple W 1 16 M 1 0 21d MW 2 s MW-22 MW 23 4 iMW'24 LOD SWSL- RA/OC
1. „ ,Coristltuerri ,. ... ,:Data, .,M ..'S MW.. , .:�:� .�.... MW . ., I, 1,. ,..,.. :.:,. ::. . . „ ., ,...:,..:
dichlorodifluoromsthane 4 Q4i17/94 1 11 'f z ti 4 { la
MCL=• 07/11/91 �' ,L ti x
FEAC e 5(SWSL) 05/28192 11 I �' I c d` r r
NCGQS 1008{ZL SW) 06/30/93 ▪ i'f 1. f 4 k `., y ; : ti 1 , ' 3 ,
a Sid w 1408(pre-Jan.2018j 11/04/94 • Fg ``' a x, �''` ,
2L Std m 1000(Jan.2010) i8/28/94 • 3 �1 1 41 i}�
02/02/95 . .i iL i, 1 I ii- f
03/13/95 y 5 r ;,
11/15/95 1 i 7i. 1 - 11 1 it 1 I I i , ro-I i1 II i rr i I11 l i i
4 +� t EI 1I. { 1 I .1 r
07/25/96 t, t u v s r j
1
r
11 t e g11I t1 a1,1 I I 19- t 1 I11 t I
03/25/35 t t 1ti
09/03/97 - 1' 1 b LI1 11 1 111r w,1 11'" 1 I 1M
05/04/96 1 >`E E II '' ` c 3 j t j I .
11/23/37 -34 , r.. y ,� 4
04/26/99 4 a ti
os122199 ty Y, v �j ii1Rl 3y5j 11 i,T•ti ▪ v i y ti
O5/23i00 t t
11i29i00 4 ti 4 4 rt r'" . } .. L i k yy tirt ,I
06/05101 v• 1 t- i r ,, 1 'tI yi i t ti4 1 �' ;v c I,ti.
11/13/01 41 4 hl 1 y.,.
06/04/02 n
03/12/03 ,t, ,,'' x` ti. 5 1 t 77 >, 4
i t i � i Iil i ti t I ii if i ' 1 1 'l. Ii1
06/13/013 1 '{ 1 ti r
12/08/03 1 ' I 11 1 I 1 IiII 't11 11 L l.t
06/22/04 - E , 4ti4 ii, -4 5. r. �' L I.S' ' {1- 1- i1a
, , r w ii
1 i/30/04 1 „i iS 1 r 1 3 1' S ` w.
06/0i/05 4 ',,,
t 1102J05 �1+ r . i I. F I ti � y`
11/27/06 4� i 4 ;4 1 H. a� i- r i b b
061121D7i . , I E II I. `
15/12/07 ' y I 1 a.. .. :,. ��
06/17/08 <0.1 ▪<0 1 ,1 ly„- '-„ ,,,L II 0.1 5 lc,cc
11/05/08 <0.1 <0 1 0 73 J <0.1 <0.1,.,.. <0:1 <0 1 <0 1 F I' 1 0.1 5
05/19/09 <0 36 iI <0 38 <0•38 <0 38 I 1�+{ ` 4 36 5
11/161D9 i 119rp it 1 1 y V I III I1' I"1
06/21/10 <0 091 I I i'i ti I <0 091 <0 091 <D 091 ij 1 I',I t1 0 091 5
11/18/10 IFi 5
y
injection event(03.29-11) 05/23/11 <0 56 <0 56 <0 56 <0 56 'I �ti r 0 56 5
I �',
08i23H 1 . -t I f H. v I v a t 1 1 4-
injection event(09.28-11) 11115,1 i ; i4 zti �4 _ �
02/21/12
5 Y. 4 - . ;-i•si it -
{injection event(04-14-12) 06i05i12 <0 24. <0 2 c0 2 <0 2 0 2 5
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injection event(09 13-12) 11i12/12 r ti 4 i ; , I r
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" x� CLIL.ENT THE COUNTY CF-0R; ;5 - k} . ,� ti
: r FACILITY ORANGE COUNT(AEGICNAL LANDFILL NORTH FACILITY
LOCATION CI1Ap;:1.HILL NOFiT}I CARD'IN sti } >�
PROJECT GROUNDWATER MOHRO{iING PROGRAM
i ttl 4,' 1 71 11 ir1
i' , I 1 I S ii'il _ , I 11 }} I , 111 ��I 1 7
bIiST1)RYOF CHEMICA4 A A�Y5lS'
',=} .;•i ORGANIC.GONSTFT"111IIENT$ I '.'I I I' it F� '.rt
Sample
Constlfuenti MW t5 MW 16 MVJ 17 MW 20 MW 21tl MW 21x MW,22 x MW 23JI J MW�Z4 LOD SWSL GAIGC
1,2-dichloroethane 04/17/90 •• -. r „ r • y `I
MGL .5 07/1tl9t = ")4i; ,- ti
FBAC=t(SWSL) 05/28/92 a ` `- rt
ii
MCGOS 0.4(2L SW) 06130193 F }� ▪ } y f'.; r� r }
2L S1d 0.36(pre-Jan.2f110) 11/04/94 - • - k '' -- - } ;. i-.,
2L 51d=0.4(Jan.2010j 12120/94 }' - ""'' 1: F1 )h -h 1 4i - ti,. ; 1,
02102195 I m
- II 1} I 7- , ii 9 1
t01115195 3i I, Ill 1'i } 14 I 15 i;'/lr i` r, `'1 1 ,i
•
07I25196 ,i 1 t I , ql }+1, 1J 1 • I, ti i
' 02125197
09103197 , 11 1},} ;: ,}. 1 , i 11 ,1,
OS104196 v 1 a x .4 ,
:•, 3 7 q 1 ilf �YL 1�
11l02/96 ti ry 3 4 ti
04126199 5 4 ' s
11122/99 I 1 1 j iC y,
05/23/00 k YY 5 4
t1129100 4 ..`� ill iy ti • tii 15:1 vI
06/05/01 , }
11129101 ` '
Dfi104102rV 1 i
,ti ti
03/12/03 II 1 } Ih ir', , h, ,1 II
061fi8103
12/05/03 ,111 „ I I I1 }I 14 1 i I ,1 I,
06122/04 7y l , '1'1 }} -y . ,},-
1113D104 q
06/01105ia- , 11 S 51'a' 11- F 3
11102105 r 1 r ' 4 r 1- 1 i I
05/22/06 r r ,P 3 x r r i r ,,r
11/27106 >•1 'I 4- n
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06112107 0.8 J <0.1 c0.1 <O.t <O,S c0.1 <O.i <01 :i;"'=:r:=` O.t t
12/12/07 <0.1 <0.1 <0.1 <0.1 c0,i <0.1 <0.1 0,5 J 0.1 1
06/17106 0.6 J <0.1 <0.1 <0.1 <O.l <D.1 <0.1 0.5 J <0.1 0.1 1 Ic,cc
11/05/08 0,5J <0,1 <0.1 <0.1 <0,1 <0.1 <0.1 c0.1 c0.1 0.1 1
051i9109 0.94 J <0.65 <0.65 <0.65 <0.65 <0.65 c0.65 <0.65 <0.65 0.65 1
11/18109 c0.65 <0.65 <0.65 <0.65 <0.65 <0.65 <0.65 <0.65 <0.65 0.65 1
06121110 D.54 J <0.082 <6,082 <0.082 <0.082 <0.062 c0.OB2 c0.082 c0.082 O.OB2 1
i11i8110 <D,65 c0.65 <0.65 <0.65 <0.65 <0.65 <0.$5 <0.65 <0,65 0.65 1
injection event(03-29-11) 05123/11 0.6 J <0.47 <0.47 c0.47 <0.47 <0.47 <OA7 <0.47 <0.47 0.47 1
_ <O.b7 0.62 J <0.47 0.47 1
,injection event(09-28-11) 11115/11 0.6 J <0.47 <0.47 <OA7 <0.47 c0.47 c0.47 0.53 J <0.47 0.47 1
02121l12 = _._.,,-.- _ `-d`_ ' '_ `z <0.21 <0.21 =z 3- <O Zl <0.21 0.21 1
injection event(04-14-12) Ofi1051t2 a0 21 i <0.2f r �021 0.21 <0.21 <0.21 <0.21_ <0 21 <0.21 0.21 1
SO169112 ;, ; ,;, -,,, ; <0.21 <D.21 • <0.21 <0.21 0.21 1
injection event(09-13.12) 111t2112 0.02 J <0.21 <0.21 <0.21 <0.21 <0.21 <0.21 0.52 J <0.21 0.21 1
02/18/13 .. • 4' ;,,;:11y <0.21 <0.21 0.62 J <03t 0.21 1

CLIENT THE COUNTY OFAAAN1rE; :`
FACILITY )RANGE COUNTY�YAEG1ONAL LAND1=1(,.L U)RtH J'ACCIt�ITY
LOCAtION CHA�'`(.KILLr NCF 4"ARQUNA ,, - _ 4
titi ti7:1.7. 1.:7::'..i.''':',;t:Iiiii.;,•'-',!-!•'',..:•:j.i..i.,Iti._.....'1,,,I-.17-....,:i.:.:1.r:,,ti.i!:::',,:_,::lic:',,,14.1,..111i:i.:',!.:1,:irl.1 PROJECT GROONDWA7ER MONITORINl PROGRAM r .
- - _.HiS OR OF.0 EM CA� & �- �,- I
�ORGANIC CGNSTITIJEplTS i
Constituent Samle..` MW�s taw 16 ' Mw i7 raw 2a lW aid MW 2ts MW.22 MW 23 MW 24 LOD SWSL OA/QC
1,1-dichloroethene 04/17/90 <5.0 <50
MCL=7 07/11/91 , , ,o ,,', <5.0 <5 0 a
FBAC=5(SWSL} 05/28/92 <5.0 <5.0 <5 0
NCGL]5 c 7(2L Srd) 06/30/93 <5,0 <5.0 <5 0
11/04/94 <5.0 <5.0 <5.0 <5.0 .. '4
12+20194 <5.0 <5.0 <5.0 <5.0 '= }
02l02195 c5.0 <5.0 <5.0 <5.0 - _ -
03l13l95 <5.0 <5A <5,0 <50 4 '''
11l15l95 <5.0 <5.0 <5,0 <5.D
.
07/25/96 6 <5.0 cs.0 <S.a ;j,::.
03/13/95 <5.0 <5.0 <5.0 <5 a ;i`.. -
09/03197 5 <5.0 <5.0 <5.0 '
05l04198 <5.0 <5.0 c5.0 <5 0
11l02197 <5.0 <5.0 <5,0 <5 0 i
04/26199 <5.0 <5.0 <5.0 <5.0 ';
11/22/99 <5.0 <5.0 <5,0 <5.0 .. ......:,;
,
05123/00 <5.0 <5.0 <5.0 <5.0 <5.0 <5,0 r r<5.0 b
11l29100 <5.0 <5,0 <5.0 <5.0 <5.0 <5.0 <5.0 b ;a ,- s; ,,; {,
04/26/91 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 =_ -__ _ __ -_
11l13/111 e5.0 c5.0 c5.0 c5.0 c5.0 <5.0 c5.0 r7<Y<? C : }; y
06104102 c5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 ` k F ''
5/ <5.0 <5,0 <5.0 <5.0 <5.0 <5.0 <5.0
1 <5.0 <5,0 <5.0 <5,0 <5.0 <5.0 <5.0 i '
12106103 <5 0 <5A <5.0 <5.0 <5,0 <5.0 <5 0 i'gr "s< r� % r
03/12/030204 <5,0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
05/18/0311/30/04 <5.0 <5,0 c5.0 <5.0 <5.0 .<5.0 <5.0 ;, ;;,_,,,
06/01/05 <5,0 <5.0 c5.0 <5.0 c5.0 <5.0 <5.0
h In .
11102/05 <5.0 <5,0 <5.0 c5.0 <5.0 <5.0 <5.0
05122106 <5.0 c5.0 c5.0 c5.0 <5.0 <5.0 c5.0 -�3-. F
i 1l27106 <5.0 <5.0 c5.0 c5.0 <5.0 c5.0 <5.0 x s x
•
06112J07 1.5 J <0.1 <01 cq.1 D.6 J c0.1 c0.1 7.4 J [_=__ 0.1 5
12/12/07 1AJ <0.1 c0.1 c0.1 6.3J <0.1 c0.1 1.5J _ 0.1 5
06/17/08 4.8 J c0.1 <0.1 <0.1 0.6 J <0.1 <0.1 1.5 J c0.i 0.1 5 lc,cc
i i105/08 0.T J <0.1 c0.1 <0.1 OA J 0.3 J <0.2 1.1 J Q.4 J 0.1 5
05/19/09 1:1 3 <0.24 <0.24 <0.24 0.43 J c0.24 <0.24 1.1 J D.62 J 0,24 5
11/18/09 0.74 J <0.24 <0.24 <0.24 0.43 J <0.24 <0.24 1.4 J 0.41 J 0.24 5
06/21/10 0.73 J <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0,71 J c0.15 0.15 5
i t118110 !,:0.73 J <0.24 <0,24 <0,24 0 41 J <024 <0,24 1.4 J <0.24 0,24 5
injection event(03-29-11) 05/23l11 0.61 J <0.6 <0.6 <0.6 <0.6 <0.6 <0.6 1.2 J <0.6 0.6 5
08/23/11 <0.6 <0.6 1.3 J <0.6 0.6 5
infection event(09-28-11) 11115/11 c0.6 <0.6 <0.6 �0,6 <0.6 c0.6 <0,6 D.75 J <0.6 0.6 5
02/21/12 �R <0.21 c0.21 • 0.96 J <0.21 021 5
injection evert(04-14.12) 06105l12 <0.21 <0.21 <0.21. <a.21 <0.21 <0.21 <0.21 0 58 J <0.21 0.21 5
10/09/12 __ ?`'""_=°_' _ 'i_ '- - <0.21 <0.21 _ -"tip;'='_ <021 <0.21 0.21 5
•
Injection event(09-13.12} 11/12/12 OA3 J c0.21 sc0.21 <0.21 <0.21 <0.21 c0.21s <0.21 <0.21 0.21 5
02l18l13 c0.21 c0.21 ;: 0.74 J <0.21 0.21 5

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CLIENT THE 1;0 NTY OF<11�RNdE
FACILITY ORANGE COUNTY AEGIONALLANDFILL NOFi7HFRCILIFY
4; LOCATION:_CHAPELHILL,NORTH_CAROLINA ,
PROJECT GROUN�`fVATER MONITORING PROGRAM ;
HISTORY OF CHEMICAL ANALYSIS
ORdANl CONStI uENtS
Sample - -
Constlluent ti t MW 15 MW 16 NIW 17 MW 20 MW ZLd MW 2�s MW22 MW 29 MW 24 LOP SWSI. QA)OC.
'- _..s- --,,,��. ,,,,,,,--,-..Date..-= .,,_„ - _.... .. ..__ ....._..._. .. �. .....-
trans-i,2-dichloroethene 04/17/90
MCL�100 07/11/91 .. . :. . .. .:: ..:.''; ,
FBAC v 5(SWSL} 05/28/92 "
NC
=100(2L Std) 06/30/93 •• • •- I
11/04/94 • ' -= .:n;:
z ;_
12/20/94ti ti I
02/02J95 u 4
03/13/95
11/15/95 ,,' '-
07/25/96
02/25197 �" ` • ' '
09/03/97ili '
05/04198
11/02/98
04/26199 `-, _•,: , ,.. , ', 5 - - ti
11 2219 = _
,5-
+ 05/23/00 ° Y _ �� Y
i 1/29/00
11.
06/05/01
11/13/01
05/03/02 �!. i
03/12/03 :__:::::•: :_: ..•:,_,: .,• .,, _,.?
061]8103 �: ti
12/08/59
06/22/04
11/30/04 03 5
06/01/05 ,
11/02/05 :._ .,.,,
05122I06
11/27/06 _.l..:h . �. : . ,i,, r..
06/12/07 1,1 J c0.1 <0.1 0.8 J <0.1 <0.1 <0.I <0.1 0.1 -5
12112/07 1.1 J <0.] <0.1 0.5 J <O.t <0.1 <0,i 0.4 J 0.1 5
06/17108 1 J <0.1 <0.1 0.5 J <0.1 c0.1 c0.1 0.4 J :<0.1,4,„ 0.1 5 ic,cc
11/05108 0,8 J <0.1 <0.1 0.4 J 0,4 J 0 2 J <0,2 0.5 J D 3 J 0.1 5
05119109 D.99 J <0.34 <D.34 <0.34 <0.34 <D.34 <0.34 <0,34 <0.34 0.34 5
11/18109 0.88 ! c0.34 <0.34 tl.43 J 0.42 J <0.34 c0.34 D,71 J 0.44 J 0.34 5
D6121110 0.83 J c0.11 <0.11 0.42 J <0.11 <0.11 <D.11 <0,11 <0.11 0.11 5
IV,-110 1,2 J <0.34 c0.34 D.49 J <0.34 <0.34 <D.34 O,fi& c0.34 0.34 5
injection event(03-29.11) 05123/i] 1 J <0.i2 <0.12 0.42 J c0.12 <0,12 c0.12 0,53 J <0.12 0.12 5
08/23/11 'Y+= • <D.12 c0.]2 0.41 J c0.12 0.12 5
-
injection event(D9-28.11) ]i115111 -0.33 J-.-' _<0,]2-• <0.12- c0.12 - <0.12 c0.12 <0.12 c0.12 c0,12 0.12 5
0212i112 <0.2i <0.21 c0.21 <0.21 0.12 5
njecllon event(04-14-i 2) 06/05/12 0 57 J <0 2] <0 21 <0 21 <0.21 <0.21 <0.21 <0.21 <0.21 0.21 5
10/09/12 „w ..-, . .:; <D.21 c0.21 <0.21 <0.21 0.21 5
infection event(09-13-i2) 1 i112112 0.78 <0.21 <0.21 <02] c0.21 c0.21 c0.21 <0.21 <0 2i 0.21 5
02/16/13 = - - <0.2] <0.21 c0.21 c021 0.21 5
7

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CLIENTt THE COUNTY OF ORANGE`',
FACILITY,17F1ANGE COUNTY REGIONAL LAN1DFJLL NORTH EACILnT
LOCATION CHAPEL HILL NORTJi CAROLINA
PROJECT GROUNDWATER MONITORING PROGRAM
- Hi .OE? OF Cl15M1CA N � _�_�- _.w.. :,_-
ST _Y. t�A_ LXBI - -- r
{, :ORGAHIC'.CONSTITUENTS. `,.
:
.._ _ _..:.-, ti. _ .._.--. .., z:.v. :..:-.. .- ,...-...:-.,.: .... Wyk y7.
Constituent semPie MW is. Mw 16 MW 17 MW.20 MW and MW2r§ MW�22 MW 23 ' IuW24 Loa SWSL QNQC
1,2-dichloroprapane 04!]719D
MCL=5 D7111191
FBAC=1(SWSL) 05128/92
NCGRS=0.6(2L SW) 06130/93
2l.Std=0.51(pre•Jan.2010j 11f04194 `
xLStd=0.6(Jan.2t110} 12120194 i .° ., -.. - ;
02102/95 .::::::.:::: 4
03/13/95
S .t - - -
11I15195 � ti �� } y_-
07125/96 x
11125197 .,,.ti...',4 44. 4ti.
07/03/97
05104/98
i 9/03/96
04126/99
II
1 1122199
04/23/00
11/29/00 } _,
06/05/01
11/13/01 K ,i s
06/04/02
0311203 _...::. . ...... .. :..,. - .. :.-::
06/18/03 "
12/08/03 '
06/22/04
t
11/30/04
1,
06/01/05
1 i/02/05
05/22/06
11/206 ,.,._..... .. s.__ti_ ._.. .... ,.._.-._y.:. -. '-,<0.,. :. ._-.....< _... ._._ . ....t..
06/12107 Q.fi J c0.1 <01 <0.1 <0.1 <0.1 <0.1 <0.1 r'K- ;' 0.1 1
12l12107 <0.1 <0.1 <0.1 <0.1 <0.1 c0.1 <0.1 c0.1 0.1 1
06l17108 0.7 J <0.1 <0.1 <0.1 <0.1 c0.1 <0.1 <D.1 .:<0.t 0.1 1 Ic,cc
11/05/08 <0.1 <0.1• <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 4.1 1
05/19/09 0.65 J <0.2 c0.2. <0.2 <0.2 <0.2 <0.2 0,43 J <D.2 0.2 1
11/18/09 0.66 J <0.2 <0.2 <0.2 <0.2 <0.2 0.48 J 0.49 J <0.2 0.2 1
06/21/10 0.63 J <0.098 <0.098 <0.098. <0.098 <0.098 <0.D98 <0.098 <0.098 0.098 1
11/18/10 r.1 <0.2 <0:2 <0.2 <0.2 <0.2 0.53 J 0.67 J <0.2 4.2 1
injection event(03.29-11} 05/23/11 <0.59_ <0.59 <0.59 <0.59 <0.59 <0.59 <0.59 <0.59 <0.59 0.59 1
08/23/11 <0.59 <0.59 <0.59 <0.59 0.59 1
injection event{09 28-11y 11/15/11 0 77 J <�59 <0 59 <0 59 <0.59 <0.59 <0 59 <0.59 c0.59 0.59 1
02/21/12 ;_s:ai,::::..,..t._.a,:,:::..::., . ..... ..--- <0.1 <0.1 _,-& 0.49J <0.1 0.1 1
Finjectionevent(04-14-]2} 06/05/12 0.58d s -:::<0.1 r : <0.1 y <0.1 <0.1 <0.1 054J <0.1 <0.1 0.1 1
_ .-: :.,;�z=-;.::-•
tip.:;-,-;/:;;,_
10/09/12 c0.1 <0.1 = <0.1 <0.1 0.1 1
injection event(09-13-i2} 11/12l12 0.76 J a0.1 <0.1 <0.1 s <0.1 <0.1 0�12 Js <0.t <0.1 0.1 1 .
02118H3 c0.1 c0.1 U.47 J c0.1 0.1 1

,
' ,, ; ' CLIENT THE COUNTYOFORANGEy y t .. } iy--` .t
1 FACILITY ORANGE:COUNTY REGIONAL LANDFILL NORTH�AC1LIT_, ,, ti
LOCATION CI�APEL IIIL NORTH CAROLINA r� 4 '
i y 1i 4 PROJECT GROUNDWATERMONtTORINGPROGRAM
} H1ST0)iY OF CHEMICAL ANALYSIS 4 , 1
' tii .
y R AN C C TITUE
41
ONS 5
Constituent Sarpple ti MW 15. MW 10 , IAYP 17 MW 20 MW lid MW 21s MW 2 MW 23 MNf 24 LOD SW5L QAIQC
tetrachloroethene 04/17/90 .; <5.D <5.0
MCLe5 07/11/91 r.,, _; <5.0 <50 svi -F7� Md '. 1,1 y 4 yo1} j
FBAC�1(SWSL) 05/28/92 33 <5.0 <5 D i i I 4. ; 11 it ; r
NCGQS=0.7(2L Std) 06/30/93 22,9 <5.0 <5 0 1 t
I, ,1, :11 ' 1111 1 1 41 it 1 l l 'I' 11 1
11/04/94 15 <5,0 <5.0 <5 0
12/20/94 e5.4 <5.4 <5.0 <5 0 ',y'1 r " 1 1 10 Ill 1 it
02/02/95 13 <5.0 <5.0 <5.0 '' v'' `y 3 1 i 1�'t ?1i 1
03/13/95 12 c5.0 <5.0 <5.0
11/15/95 13 <5.0 <5.0 <5 0 h 3 1 '1 1 11 3 1
07/25/96/ 5 33 <5.0 <5 0 <5 D
i 4 4 y - i • 7 y
02/25/97 23 <9.0 <5.0 <5.0
09103l97 23 c5.0 c5.0 <5 0 r y • y} i s i '1- 4
05/04/98 9 <5.0 <5.0 c5,0 `1 ' w ti 4
11/02/98 10 <5.0 c5,0 <5.0 C ' - 4 'I " ▪ lS 4 k'3�
M 44 ,. 1 4
04/26/99 <1 0 <5.0 <5.0 <5,0 • 4� i
11/22/99 <5.0 <5.0 <5.0 <5.D `
111,..,.Et .... - �r h,
05/23/00 <5.0 <5.0 <5.0 <5,0 <5 0 <5.0 c5.0
<5.0
ai' 1t
,
11/29/00 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
06/05/01 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 ' ,, K, ti '
50 1+ �it113101 <5,0 <5.0 c5.0 <5.0 <5,0 <5.0 < ` i50 af ti 06/04/02 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <50 4 tiO3/12/03 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 < . 41 i ` ' yi 106/18/03 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 > 2 Ls r4r
r.
, 1 ' i12/08/03 c5.0 <5.0 <5.6 <5.0 <5.0 <5.0 <5 "06/22/04 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 � 17 1 1 ,5.0 r-t e h'ar w11/30l04 <5.0 <5.0 <5.0 <5,0 <5.0 <5.0 < r g ti i 1106/01/05 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 " , ,
11/02/05 <5.0 <5.0 <5,0 <5.0 <5.0 <5.0 <5.0
05/22/06 <5,0 <5.0 <5.0 <5.0 <5.0 a5.0 c5.0 to '7 ?'1 1 1 1
11/27/06 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 r iY.
06/12/07 <0.2 <0.2 <0.2 <0.2 0.7 J 0.6 J <0.2 3.2 .:_ 02 1
rii,;!i1-',i
12112(07 <02 <0,2 <0.2 <0.2 0.5 J 02 J <0.2 1.3 ';;: ,_L;: 0,2 1
06/17/08 <02 <0.2 <0.2 <0.2 0.7 J 0.5 J <0.2 2.8J <0.2 02 1 lc,CC
11105/08 <0.2 <0.2 <0.2 _ <0.2 0.2 J <0.2 <0.2 f.i 0.3 J 0.2 1
05/19/09 <0,36 cD 36 <0 36 <0.36 0.7 J <0.36 <0.36 3.7 1.3 0.36 1
11/18/09 <0.36 c0.36 <0.36 <0.36 0.68 J 0.54 J <0.36 3.8 0.03 J 0.36 1
06121/50 <0.099 <0.D99 <Q.099 <0.099 OSA J 0,42 J <0.099 2.5 0.53 J 0.099 1
11/18/10 <0.36 <0.36 <0.36 <0.36 0.77 J 0.4A J <0.36 3.2 <0.36 0.36 1
infection event(03-29-11) 05123111 • <D.73 <0.73 <0.73 <0.73 0.77 J c0.73 <0.73 4.4 <0.73 0.73 1
08/23/11 1,..,i„..,- '•• *;•1 <0.73 <0.73 2.9 <0.73 0.73 1
infection event(09-28-i1) 11I15111 <D.73 • <0.73 e0.73 <0.73 .r 2.3 <0.73 0.73 1
02721/S2 1 "`.1.1.7. .1 .. ., ,.. , ,''1. :,4,, tl.61J 0.65J 2.7 <0.17 0.17 1
injection event{04.14-12) 061D51i2 <0.17 <0.17 <0.17 <0.17 c0,17 <0.17 <0.17 0.73J c0,17 0.17 1
10109152 ;- .. ,. ':: c0,17 0,54J :". 2.4 0,42J 0,17 1
injection event(D9 13 S2) i11i?J12 <0.17 <0.17 <D.17 <0.17 0.44 J <0.17 1,5 <0.17 0.17 1
02/18/13 0 0.59 J <0.i7 2.2 <0.17 0.17 1

r
CLIENT THE COUNTY OF ORANGE'
FAOIL{7X ORANGE CO REGIONAL LANOFtli,.l, OATH FACILIfl
>QGATION CjiAPEL HjLL NORTH CAHOLINI, y
t
• ti PROJECT GROUNDWATER MONITORING PROGRAM -,-ti y,;,.4',,,.1 z,z k
I , .' fItSTORYOFCHE,MIICALANALt(S)S- ,yam 4 �r
4 . - a ORGANIC CONSTITUENTS
Constltuenl �'. Sartcplg •MW 15 MW 16 MW 17 MW 20 MW 2.1d Mil[21s MW+22 MW23 MW-24 LOl] SWSL, QNQC 1
:.:.: ....:...: .......: ,: :: ...pate.-� :. . .. . .. .....• • .,,.,.::i
toluene 04/17/90
MCL.1000 07/11/91 . -
• ,;
FBAC=i{SWSL) 05126/92 <0.5 <0.5 <0 5 `
NCGQS c 500(2L S[d) 06/30/93 <10.0 <10.0 <i0 0
2L 3td W 1000{pre-fa Ina.
2010) l 1/04/94 <5.0 <5.0 <5.0 <5 0
2L SW=600[Jan.2010I 12/20194 <5.0 c5.0 <5.0 <5.0 z x- ti
021p2195 c5.0 c5.0 <5.0 <5.0 " " ""_"
RM
03/13/95 c5.0 c5.0 <5.0 c5.0 ='===F' ti
11/15/95 c5.0 <5.0 <5.0 c5.D
07/25/96 <5.0 <5.0 <5.0 <5 0 . y
02l25197 <5.0 <5.0 c5.0 <5 0 ti
03/13/957 <5.0 <5.0 c5A <5.0
05/04/95 <5,0 <5.0 c5A <50 j
4
y
11/02/98 <5.0 c5.0 c5A <5 0qj ;1 O
04/26/99 <5.0 <5.0 <5.0 <5.0
11122/99 <5.0 c5A <5.0 <5.0
05/23/00 <5.0 <5.0 <5,0 <5.0 8AR .6 R - <3
11/29/00 <5.0 <5,0 <5.0 <5.0 <5.0 <5.0 <5.0 `,, -�a y,._
06/05/01 <5.0 c5.D <5.0 c5.0 'Co0 <5.0 c5.0 I i a
11/13/01 <5.0 <5,0 <5.0 <5.0 <5. <5.0 <5.0 s 5 _t n t : t'
1 06/04/02 <5.0 <5.0 <5.0 <5.0 c5.0 <5.0 <5.0 '' -
03/12/03 <5.0 <5.4 <5.0 c5.0 c5.0 c5.0 c5.0
06/18/03 <5.0 <5,0 <5.0 <5.0 <5.0 <5.0 c5A w } .
12/08/03 c5.0 c5.0 <5.0 c5.0 <5.4 c5.0 c5.0 h }
06/22/04 <5.0 <5.0 c5.0 c5.0 <5.D c5.0 c5.0
11/30/04 c5.0 <5.0 <5.0 <5:0 <5.0 <5.0 c5.0 s M f>
05/01/05 c5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
11102l05 <5.0 <5,0 <5.0 <5.0 <5.0 <5.0 c5.0
05/22/064 <5.0 <5.0 <5:0 <5.0 <5.0 <5.0 c5.0 ,, .
11/27/05 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 >-<<=i i€'sz: :=i1
D6l12107 <0.3 c03 c0.3_ <0.3 <0.3 <0.3 <0.3 <0.3 9S z:;_r 03 1
12N 2/07 <0.3 <0 3 <0.3 <0.3 c0.3 <0 3 <0.3 c0.3 0.3 1
06/17/08 <0.3 c0.3 <0.3 <0.3 <0.3 <aa <0.3 <0.3 0.5 J 0 3 1 ic,cc
11/05l08 <0.3 c0.3 <0.3 <0.3 c0.3 <0.3 0.4 J <0.3 <0.3 0.3 1
05119149 <0.27 <0.27 <0.27 0,55 J <0.27 c0.27 c0.27 <0.27 c0.27 4.27 1
11118109 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 0.27 1
06/21/10 <0.053 c0.053 <0.053 <0.053 <0.053 <0.D53 <0.053 <0.053 c0A53 0.053 1
11/18/10 c0.27 <0.27 <0.27 c0.27 c0.27 <0.27 <0.27 c0:27 <0.27 0.27 1
ejection event{03.29-11) 05/23/11 <0.85 c0.85 c0.85 c0.85 <0.&5 c0.65 <0. c0.85 c0.85 0.85 1
081231i1 ""'`"' - c0.85 c0.85 "'`°'"'' " c0:85 <0.85 0.85 1
injectianevent{09-28-11) 11l151t1 c0.85 c0.85 <0.85 <0.85 <0.85 <0.85 c0.85 <0.85 <0.85 0.85 1
02121lt2 _.._. c0.14 <0.14 • _. <0.14 <0.14 0.14 1
injection event{04-14-12) 051o5I12 0.54 J <0.14 <0.i4 0.49 J <0.14 <0.14 c0.14_' <0.14 <0.14 0.14 1
-_.-fie':. uy_4^v r�.'� ` � _.zY\.y,y�e:�
10/09/12 i ='r:ii <O.i4 <0.14 <p,14 <0.14 0,14 1
injection event(09-13-12) 11112112 <0.14 <0.14 <0.14 c0.14 <0.14 <0.14 <0.14 <0.14 c0.14 0.14 1
02/18/13 c0.1h c0.14 „0,.. c014 <0.14 0.14 1

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• m d N O N N O O O N N N N O O O N l'�l O O N N r O N N N 0 0 r
,,r;,, _ =you, �I: �aaa�^` a`s � �l'n�ln�mmmcl� mr13: �mam.�•.1n�m u���N"ma.=a
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1
CLIENT THE COUNT`',OF ORANGE
} EMOTE('Y QRANG) COUNTY REGIONAL LANPFILL iIQRTh FAGIL1T1(
LOCATION C�IAP�L}11L1., 1••--J•CAROUNA ti ;
' ,_i,,. PROJECT',GRO[7NDWATERMONITORIHG PROGRAM }
-� - .4 5 '"4 5 5
x 15TORr CF C �1411CAL. NACYS15 � � _�`�
ORGANIC CUN57iTUEt�TS .'
:f..:'.:7,,011::=7z.i:.ititill.",,!"1,.__,-:._vim- ...__: �.- ,4 '�+.
= Canstl uenf emp[e MW 15 ,MW i6 MW 17 ' '1l1W 20 MW 21d'' MW 2is MW-22 !NW 23 MW 24 LOD SWSL *A/ C
chloroethene 04/17/90 <5.0 c5•D
MCL..5 07/11/91 t <SA <5 0 r r 7 Si t; 7 5
FBAC=1(SWSL} 05/28/92 16 <5.0 <5.0
NCOGS=3(2L Std.) 06/30/93 24.4 <5.0 <5 0 -,,;
2L Std:2.8(pre-Jan.2010) 11/04/94 22 <5,0 <5.0 <5 D „ "'� - sx. '
2L Std.,.3(Jan.2010j 12120l94 9 <5.0 <5.0 <5 0
02J02J95 19 <5.0 <5.0 <5.0 "' :1^ _' mow,
03/13/95 13 <5.0 c5.0 <5 0
11/15/95 14 <5.0 <5.0 <50 ..-- ti '
07/25/96 33 <5.0 <5.0 <5 0 ,
r ti
02/25/97 30 <5.0 <5.0 c5 D
09/03/97 31 <5.0 <5.0 <5 0 ;', • , S•`,
05/04/98 21 <5.0 <5.0 <5 0
11/02/98 23 <5.0 <5.0 <5.0 ..,.., i r:,�:.°,i : ..,�',. . .'' ,,.
04/26/99 12 <5.0 <5,0 <5 0
11/22/99 8 <5.0 c5.0 <5 0 - • "'-
05/23/00 10 <5,0 <5.0 <5.0 c5.0 c5.0 <5.0 4 ° *_4a " {
11/29/00 6 <5.D <5.0 <5.0 5 <5.0 <5.0 ,,r�,�k A -, , ▪ f�a
06/05/01 7 <5.0 <5.0 <5.0 <5.0 5 <5 0 = s u i`;ii='s=':`- z;' ! -
11/13/01 <5,0 <5.0 <5.0 <5.0 <5.0 BJ c5.0 "`' _ - - - '<''•''.'- f cc
06/04/02 <5.0 5 <5.D <5.0 <5.0 7 <5.0 L '
I D3112143 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 c5.4
1 06/18143 <5.0 <5.0 <5.0 <5.0 c5A <5.0 c5.0
12706/03 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.4 i. s , 7 g3 f • f+
06/22/04 <5.0 <5.0 c5.0 <5.0 <5:0 <5,0 <5.D
11/30/04 <5.0 <5.0 <5.0 <5,0 <5,0 <5.0 <5.0 4 .:' r h 3 r
06/01/05 <5.0 <5.0 <5.0 <5.0 <S.D <5.0 <5.0 u L „.: ,,.,:....":
11/02/05 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 7
0512210fi <5.0 <5,0 <5,0 <5,0 cS,D CS.D <5.D rh
11/27/06 <5.0 <5.0 <5.0 <5.0 <5.0 y.cr'ti -, k ;
06112107 c0.1 1.9 <0.1 <0.1 <0.1 <0.1 <0.1 4� Y__=- 0.1 1
/ . 12112107 0 3 J 7,4 [0.1 <0.1 0.8 J 0.9 J <0.1 2,3 0.1 1
06117/08 <0.1 1.7 J [0.1 <0.1 1.1 J 1.4 J c0.1 3.6 J <0.1"s 0.1 1 Ic,Cc t
11/05/08 1J 08J <0.1 <D.1 0.6J tJ <0.7 2.4 0.9J 0.1 1
05119109 <0.38 1.1 <0.38 <0.38 0.94 J 7.2 c0.38 3.6 1.3 .0.38 1
11119/09 <0.38 1.2 <0.38 <0.388 0.76 J 1.1 <0.38 4.4 :till 00.318 t
06121/10 <0.13 1.1 <0.13 <0.13 0.64 J 0.9 J _ <0.13 3 6. 6 J Q.13 1
11l18110 <0.38 0.7 J <0.38 <0.38 0.69 J 0.e7 J <0.38 3.2 D.38t
hnjection event(03-29-11) 05123111 <0.720.79J <0.72 K0.72 <0.72 0.75 J <0.724 0.72 1
05/23/11 „r:;• <0.72 0 91 J ;" 3 1 0.72 1
injection event{09-28-11) 11I15/1 t c0.72 <0.72 <0,72. <0.72 <0.72. 0.6 J <0.72. 2.2 1.1 0.72 1
0212tl12 t _ _ '_ _" c7.06.172.1
.61J O.6J 2.8 D.73J 0.15 1
injection event{04-14.12) 06105/12 <0.15 0.44 J <0.i S <0.15 DA5 J 0 56 J c0.15 2 0.74 J 0.15 1
10/09/12 c0.75 0.52J �,;-• 0.71J 089J 0.15 1
injection event(09.13-12) 11/12/12 <0.15 0.55 J <0.15 <0.15 <0.15 0.95 J 0.83 J 0.15 1
02J18/13 0.48 J <0.15 2 0.92 J 0.15 1
a b

•
CLIENT THE COUNTY OF ORANGE
FAOIL(TY ORANGE COUNTY REGIONAL I.ANI�FILL NORTH FA0ILITV
LOCATION c,,APEL)1ILLF NQI#1)i CA1101,INj1
PROJECT GROl1NOWATER ONITORINL3 PROGRAM
yIs'�O A CI1oly1I1:AL l „ ....,sIS
. _ ...... .. . ..: .... . t7RGATNffp cONSTI1.:14, FES...... .......
i
' ConstI uent Sample MW 15' MW 16 MW 17 MW 20 'MW+2id r MW 21s MW-22 MW',23 MW 24 �tOO SWSL QAIQC'
,..... ... ; Date:..,'' :..., ...... -. , ,
vinyl chloride 04/17190 <10.0 <10.0 ;
MCL @ 2 07/11/91 a r,,.,�..:;: <10.0 <10 0 i, 4, ,
FBAC=1(SWSL) 05/28/92 <10.0 <10.0 <10 0
3
NCGQS.0.03(2L Std) 06/30/93 <10.0 c10.0 c10 0
2L Sid 0.015(pre-Jan.2010) 11/04/94 <10.0 <10.0 <10.0 26
2L 51d 0.03{Jan.2010) 12/20/94 <10.0 <10.0 <10.0 <10 0
02/02/95 <10.0 <10.0 <10.0 20 "`
03/13/95 <10,0 <10.0 <10,0 20
11/15/95 <i 0.0 <10.0 <10.0 13 J ... .. Ia
07/25/96 <10.0 <10.0 <10.0 43 J '' "1 ; CO
02/25/97 <10.0 <10.0 <10.0 11
09/03/97 10 R <10.0 <10.0 15
05/04/98 <10.0 <10.0 <10,0 10
11/02/98 <10.0 <10.0 <10,0 11
04/26/99 <10.0 <10.0 <10.0 <10.0
11/22199 <10.0 <10.0 <10.0 • 17
105/23/00 <10,0 <10,0 <10.0 10 <10.0 <10.0 < 0.0
` "11/29/00 <10.0 <10.0 <10.0 12 <10.0 <10.0 <10.01 . „
06/05/01 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
11/13/01 <10.0 <10,0 <10.0 <10.0 <10.0 <10.0 <10.0 ,, '3y ur
06/04/02 10 J <10.0 <10.0 10 J <10,0 <10.0 <10.0 t sr
03/12103 17 J <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 ht
06/18/03 14 J <10.0 <10.0 <10,0 <10,0 <1
0.0 c10.0 m ` , ,' ` lc'cc,ss
12/08/03 13 J <10.0 <10.0 <10.0 <10.0 Ic,cc
06122/04 12 J <10.0 <10.0 <10.0 <10.0 <10,0 <10.0 Ic,cc
11/30/04 <10.0 <10.0 <10.0 <10,0 c10,0
06/01/05 16 <10.0 <10.0 <i0A <10.0 c10.0 <10.0
11/02/05 15 <10.0 <10.0 <10.0 c10.0 <10.0 <10.0
05/22/06 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 'p,? ^:....r
11/27/06 22 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0
06/12/07 13.1 3.9 <0.1 2,4 4 1.2 0.7 J 4 t 0.1 1...
12/12/07 16.5 2.1 <0.1 2 2.4 0.4 J 0.97 J 4.4 0.1 1
06/17/08 12.8J 4J <0.1 1.8J 3.4 J 1J 0.7 J 2.9 J 0.3 J.
0.1 1 Ic,cc
11/05/08 14.6 2 <0.1 1.5 3.5 2.5 <0.1 3.4 3.3 0.1 1
05/19/09 12 2.3 <0.3 0.6 J 3.2 2.9 0.78 J 2.7 1.6 0.3 1
11/18/09 12 3.4 <0.3 0.94 J 3.6 2.9 1.6 4.8 2.5 0.3 1
06/21/10 8,7 1.9 <0.083 0.69 J 2.5 1.6 0.7 J 1.5 0.62 J 0.083 1
11/18/10 13 2.3 <0.3 0,79 J 3.8 0.56 J 1.2 4.7 1.9 0.3 1
injection event(03-29-11) 05/23/11 8.2 1.1 <0.6 �4,6, 2.6 1.2 <0.6 2.4 <0.6 0.6 1
08/23/11 3.3 2.4 ;1 3.6 1.1 0.8 1
injection event(09-28-11) 11115111 10 1.4 <0.fi <0.6 1.7 <0.6 1.2 1.6 1.5 0.6 1
02/21/12 2.9 1 , ;;';'',, 2.6 1 0.32 1
injection event(04-14-12) 06/05/12 9.7 <0.32 <0.32 50.32 <0.32 <0.32 <0.32 <0.32 <0.32 0.32 1
<0.32 0.96 J <0.32 1.1 0,32 1
injection event{09 13 12j 11/12/12 12 Y.2 <0 32 0.62 J 1.2 c0.32 1.4 c0.32 1.6 0.32 1
02/18/13 -.r; . 1.4 <0.32 0.97 J 2 0.32 1

CLIEfVT-TfiE COUNTY OF,ORRNGE
'?.� : 5
FACILI Y ORANGE COUNTI REGIONAL LANDFILL NORTH AClLl71f , i
LOCATION CHAPEL HILL NORTF OAROLINA y
PROJEOT-GROUNLIINATER-MONffOR[NG PROGRAM;- 'i: �� ii
»X
-:i•rr:_:.�:tip .5,.'"-i'''r':'' S i°�'- . S
...„: :::::1.704:iMNiiii;'-'. :D::::::::;;:fliftaii:A!':.1:1
. .ORY.'OF.CCO S1A ANALY51 -: ;:5:= �:.. =: n- ::::.... - ._... ....::=w:::•::;•: ••
_ , 5 � �x ORaAN1C 00NSifIUENTS � ti ��� "� ;�y,.;.r",_;
All result's In µgf i;, ..•,. .:
U gradient wo113_nnt shaded
Shaded,cells Indicate data not available
Blue bolilpd cells Indicate oonaentratlansthat exceeded the FBAC ti"
Red bailed Celia Indicate concentrations that exceeded thoNCGOS
Green_bolded Fells fndlcatd Concentrations that were aLObbut aSWSL
F b
R S ti -_ - i 4 t4� -4 5'i- - -
i found In instrument blanl( . t.,_found ri tr►p blank
found In field blank Y �Y x xx to initial callbretlon beyond limits
cc cantinu n Calibration be and limit. hid matrix s ike du ticatas beyond limits
i tt Y p P
ss surrogate spikes beyond ijmlts is iriterna standard beyond lfinit
ce confirmation valuebeyond limits J concentra ion deemed estimated
B oncentl•atldn attributed to cross.contamination } lk concentration'deemed tlnrelIatile
sr sample results of a duplicate are below detection limits hi sample hoTdlnp,ttmewas exceeded
a additional Appendix2 consbtuetnt
• limits net estabrlshetl _
5 S--
F13AC.=faclllty background` NCGGS—groundweterstandard as established byHCflENH
SWSL=Solid:WasteSeetlon:Limit as:established`b NCD_NR = - V ;',., SPL- atatistleal rediction Iimli
GWPS :groundwater�roleciron standard ::..•:.
v>`
99n 0.1. aMn9S92

•
:.i�d� 1. .5:�"_ i1.,, 10+ tltl, '.�"�4 tlCr SFi iti -� bb "1'f 5F i_6_.1., 'u A' " tl'tl k'7' J 1:
1 !! 1R 7 7 ,- J 3,p,r7,7 , rr r3r7f ,,r J J, !r i{i{F rj 2v r. Fr !f! !3!3 xi.;
;1:
5 J,J�:+!!5r !{{ {+ „+,+,-�, ,� „k {�{{ !4 ! kr }} °. !letd 'd5.' CLIENT 7Hg CCUN7'► 1 --. A1115 , `z.? ,.,rs ;°? _ .e.JJ "" ii JJ. uY ,i 3. .. rfF ,�... .1, r j.�, jra��,je Fr3F 7 " r } �'e J --s{` sY ,b,d ii 6�tlf"i` J,i,.,!• <. .. ,. ; .au u ++ FAC ie,t 'A 4 G`g0,0P�T RfrGi V.o a N� LL NQ Ti.FAOE r!0r , er+ u uu r
1 s 2:;','a, j�ir ss : 1 ,s ,11 Fla."�77} -CAT C. !B€ ; T` O`=;: 4f,7+:g: '. +d:.: 7sy1 Yu 6 r,J,J,;;; ��.y. ,w.:',,F ,,, �.. - ;;...7�
!+! !,, � �� , ,!,! LQ ro#y„ HAfS,�,Fj1�,L lvb� i�i.>wAa i< �'{ !+ r !! # !,! �;�., +�+
u >Y ' iJ.u.u�<kr,,{ ✓� .�,,. ,,$u� i �ek a u, e+e✓ F
' •PROJB.GT ORd{1NDWA1EkPTI 17R!GP:%.: M'r r i r ' l�:.,
r r � u €�€� J Jn tl r a s' � -€ 7 7 3'f� 3 .�.�3r3rY11 J _ �
1 jyp,.n°�+i�i�tlr f F i i+bi 54 � s iirSF .� {,4{es4-'d . ..i<. +� r! iJ �" + ! aka 4r�.`rY3
�}}1 uu{euu ��- r:; 2 uuruu{ , r! } r •F,-�.{.-. ptuu?'`+e ,+ u + q +;,,,,4uk.+r,:,,! ti4 -.f.r^,.
'y, U . -:p 4 -a'tl'+�s 5[,,,.','4ji tl 5'1 a -i 3 ii a5 /U.1.1. r p5 j,J Cy< .}./,•a a",6
..:.. rr =7 7 3:f j"b d e 7 r a ..!i w,ij,ja 1 0 ' . 1ST 'TfOF CHEM..PRL 11NAL`YS15,} ....ww{i{il.a�.!!j. flfi7 1..s. 3, -7 7r !Y,.. .. ,l,lw`{;�
� !!+ !'�!!+ 3 _-- �,.� �uu+{+{�u++ '+ . ., ,,� ��xr ! .r�uu+.4su !! !r e f, t- f:.€ti:,;a� � rrj! r. r 4 �,<,�Y�Yjku� �,{,u r4,�
.�! §rt €s, .�NORC,ANSc-CON^ST1TU1sN7$ T' I.L METAL1�rr rs +� r.... ! k '`
, --b Yr- -i w- s '�uu aaj r�'.i -F .., _ � '-€'1 di 5s rr j €J'aa a€jjn5, se j'T s.= 5c J+ 77d
f {,ff fr3! ,+,., !! r +!a r3rf !! !j!'.°. ; + f!?:"�fYf ,.. ,7lfry{:. .€77_ �! +"',':, !!. ;,,4;-.,. r
l+i, ++++ r;'� r << A �k+{+4 ;r r !,y err,! � � f�£ k l+S+� u 4r+�+++ x �� r r r � $ 'a{auk+f��'"l+�u°SY£7 �'++++ -e 1 ' ??i?,
ea - .. , .. ,JF: a u!3 i'aa.'; r .3. , n.n r`„ "1 .,.;;:..irt t1J1tl',..,s.s �'z .g a :443f 3f'rc i... d. 11z}.:riEr , -j,u€ 3,,,,,tl; a *`r -- �, J+lv`.7, r•.€
d+r u' iG�.nAiftuefY . 18amile to MW 5 M 6 MW 7 tl5 #,j, i f+'QA r�.�
as ,, Mw aJttN��4 2 +'+ +11 zx ? iD s +s1:F tit
' . i+i,uur<)Eu {! ?:� lied`!! rir +�e+ k uu+{+{A,"!+ r+4r + s - !! gy y,�
mercury 4 04/17/90 5 , <0.2 <0.2 s t r 'o
i 7r7 rwrwi: <0.2 <0.2 "u' a i ,,i'�`'1+ 5 5� n +rjr j .hr +i/i uj`}u"sii+r i+i+ x ° ° }�r+1++ ° ?l+r' d r i°:
MCL=2 07/11/91 r!
FBAC a 0,2(SWSL) 05/28/92 <0 2 <0.2 <0.2 " 4'1 i ts,, 1 ''UU U 1'? uau{+e'€'lu a j,1, tlxc' a ar ,{i i l,i,f r --s s,fr+r e U i 5 i':v 'r lil;„,!..yi .i+i+,
NCGRS c 1(2L Ski) 08/30193 <0 2 <D•2 <0.2 +r r r r' ;; . �h,5 i
2L Old=1.05(pre-Jan.2010) 11/04/94 ,s ± 4,ti }e 5,+ 3 e pu,{{{ d,4 a tl +✓?+ r d c ,�,�e,' ,?.. Rs.r+r� 5 s .,. a tl7 yr ?+i+l",-. +r::. i ++i�y,4
2L Old.. 1I.05(,2010) 11/04/94 Yt€€ ke jinr77 as i1 a ' f 3 €.7 r1 J x .r ,[s,j'j�''JJ ars€ 1,j 1'' drr ji, hz Ft �,JY d i?rn siT �5rrjj�`ij -
02/02/95 'z+ 22 i!! + ��k,r a !+r G l,! !+ ! +,+r 4! k!r! nY r ; r� F r +r i rj !! 7+i 1
03113/95 diaxij t r .ri rr � 'jjYa� tl 1 -f`D 1 :'. 33�§=fir..F� d i s17ua a3 ?/ a5 , iiar f 7 e,, ��.....:d 555 5 ors,,
i r r r - 3•{5 u l+ +{+{ t r -`F+l+! *. r r , -.rJ i,,,u u y l;,,,.1, r !! ,.jjj! r ! r r ',-#4'.
11/15/95 ' tltl r-9, r s'�,5 4 n n 11 ,1 r e €4i4i u2,'j{°"��YI�O i+i °+i 7+ -+f..45 5 d'� ,i J +5 ?i{a iyy ..: J�I R�,tl o j n�
07/25/96 <0 5 ,�T <0 5 }y, 38 .3
02/25/976 <0 5 <0 5 <0 5 [0 5 3 Jo o of 3 U Y.r {fs ,/Y 7a,+/,a r pis s r o- ry z.4 r{ ui4 Yib tl f+3r ,3,3 c ,r .. r �n i,+,N
0 / /97 3 3 f d r i r .-Vv€ `,,j,ja a't e a! ,! @ b 3,f. 1 '#5#�' Jy?n s j j u;,j s o53`r7, � ,f,a,7,,jy n7 f+f,tl tl a 7 7 t'# j fn
p5/Q4/98 ti}+ a ,, .rA,:u{+ .,.`�i 2K:+:".,?- :.!! .j !+kr,,„ r, }!+ uuk 4{!! „.{ !+ r + + irr!! nrj . .
11/02/98 0.5 <0.2 <0.2 <0 2 s:`t r 1 r ud r{(,f )r?r a tl tl + 1 u €ayer+7+P+`f i rS l§,..,,+n d €.1 f5 5 , ,iliaueuaa,,i f 1
04/26/99 0.6 B 0.2 B 0.3 B 0 3 B es�J i�J Jtl a 3`s s 4do r'' �rx f f 'i'd 1 p s5 7 j a �U jy?"'' s', le' � U U J J 7 d 1
u�a,u�4 4 u ujr ' i, !! u ru`� r- i r a a!t. °a i ,u+� l+ +r.: 4,'E i U
11/22/99 0.3 B 0,3 B <0,2 <0.2 :l, ;l; g' +„' ��w' ,Y �!+
05/23/00 0.5 J <0.2 0,6 J 0.4 J 0.7 d <0.2 <0.2 o° q° i+ Fi+{+iuufa+U/suU+4+i P+� 1 r S-.t 1 s r4.: d,cc
11/29/00 <02 <02 04J <02 10J <02 <02 i d
1,35 u. a°,J,f 67,/a 5 ' 1 : i P ,F,r r 5_e d.yr -:
06/05101 <p 2 <0 2 [0 2 <D 2 1 0 <0 2 [0 2 u 5{+{+ h++ r 4 R
11/135/01 � ;?! ,yfdU. .�+;... ; ...,?. ..99l4r.°._;i;: Ur4...; „•' .....F?; r? e '111 ba,J,J af'11 aer;POiri n , €f1!' } s p,3re"r r iJ, r .„ fs.i,:
73 Juu ! �!! x P� '' !! 4 r �
06/04/02 <0.2 <0.2 <0.2 [0 2 1.4 <0.2 <02 j f 7 i� 7 7 r r z
v + ' € sac 5irrr sss'r�s
03/12/03 <0,2 <0,2 <0.2 <0.2 1.0 <0,2 <02 i u ur !,Yjj+ "+r rrr, S S ;''.
06/18/03 <0.2 <0.2 <0.2 <0.2 0.6 <0.2 <0.2 4 € '4 ,Jr Fr, ,rlrka -5,r, jp a Kfaa+Urju,;.,;6 a'
12/08/03 <0.2 <0.2 <0.2 <0.2 0.5 <0.2 <0.2 w v{
r!, tltl an € ,t3�s1 J seea+4+4u! €�j{j{ a + ./z5.,i+.
06/22/04 <0.2 <0.2 <0,2 <0.2 1.1 <0.2 <0.2 � r 5;
11/30/04 <0.2 <0.2 <0.2 <0.2 1.1 <0.2 <0<2 a v i 1 sus rr ?U?UU'3 a a++ rj i d €74{ lr++ e 3lr '
06/01/05 <0.2 <0.2 <0.2 <0.2 0.6 <0,2 <0.2 /,'+' j
zJj ntl sai -1 77 ajj u j a., b.
11/02/05 <0.2 <0,2 <0,2 <0.2 3.6 <0,2 <0.2 l+l+i + + .e r+r+,w rr '
05/22/06 <0.2 <0,2 <0.2 <0.2 1.9 <0.2 <0.2 UU,f, F+4 !r!+ �3,2d 5 s(Y113 ududi+4+/US/Y u alj+U')tiw U it,
11/27/06 <0.2 <0,2 <0.2 <0.2 1.48 0.48 <0.2 }`7i ,.,i ..tl. 288F : !^....,, , f„ ;.. •i,,•,;5
06/12/07 <0 01 <0.01 <0 01 <0 01 18 0 33 <0 01 0.74 r 1, 4+/+'1 ' 1 0.01 0.2 1
12/12/07 <001 004JB <001 <001 32 0201 B 006JB €, €/jj vvY �+ 0.01 0.2 i
r 7f e ,+� a u ,r e R , u { rr'r, 0.01 0.2
03/06/0a .. : ..�,,. . r:y,....;., ....,,,.,. ......- . 4.0.37 13 ,
06/12/08 0.14 JB 0.17 JB 0.08 JB 0.09 JB 1.8 B 0.16 JB 0.6 B ?;r44� ,,?'rrl 0.01 0.2 i
11/05/08 0.18 JB 0.08 JB <0.01 <OA1 2.2 0.12 JB <0.01 0.6 0.12 JB 0.01 0.2 I.i
05/19/09 <0.05 <0.05 <0,05 <0.05 2.16 0.81 <0,05 0 06 B J <0.05 0.05 0.2
11/18109 <0.054 <0.054 <0.054 <0.054 3.3 1.59 <0.054 0.482 <0.054 0.054 0.2
06/21/10 <0.17 <0.17 <0.17 <0.17 1.9 2.7 <0.S7 <0.17 <0.17 0.17 0.2
11/18/10 <0.17 <0.17 <0.17 <0.17 3.13 1.64 <0.17 0.755 <0.17 0.17 0.2 I
injection event(03-29-11) 05/23/11 <0.17 <0.17 <0.17 <0 17 1.77 t.52 <0 17 0 344 <0.17 0.17 0.2
ut'7'aA; i e, 2.23 2.37 €,71%: it 1.48 <0.17 0.17 0.2
injection event(09-28-11) 1111511 i <D 17 <0 17 <0 17 <0 17 2.95 0.748 <0.17.. 7•74 <D i7 0 17 0 2
02/21/12 )ua U).i,+, .., "r (UFrt.,7,7 1 e, „.0,, raxua € ,11 w y ,f,3,F _ ee e, e,i,J� J,J,: , r7 rr rF,7 a , 57 3 rx__:
f,15 a 4!{r{. <<,.,,i,1, .F +,??Kf M} �.E-0.2
r w �
injection event(04-14-12) 06/05/12 <4 S 7 <0 17 <0.17 'r� <0 17 0 981 OA07 <0 17 0 652 <0 17 017
10/09/12 !! s, �.,,.,.,,r,s -^;U°u u U .3 , :, �'341) U . 4! {{ r- . !! LN....r r rl ..i,r,t.' �.. .:° ':
t
injection event(09-13-12) 11/12/12 <0 17 <0 17 a0 17 �<0 17 7.8 134 <0 17 3.07 <0 17 0 17 0 2
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carbon dioxide 03/22/11 55,500 29,100 9,070 16,300 2,000 = 4:.p
MCL-• D52311 t _ _ - -'"'"�'�'` 139,000 85,900 343,000 65100 1,300 =;""`"= ?
FBAC=• 0623r11 - - 207,000 131,000 92,200 74,400 1,300 =
NCGOS=♦ 11/15/11 ti ',,rZ�3;it;Ll7- wE 204,000 123,000 114,00D 69,800 1,300 - ! j
0221/12 �;=Esc'^=7sj .iy; ,;; 211,000 110,000 96,700 64,300 1,300 =-
r°Tiir,. : ;;::;sue;;., -,-1'o'':1'n?
06105/12 _- -_._..�_. 195,000 70,900 34,200 76,600 270 - '`^""-_�
10709/12 _---- _ _ '- = 198,000 529,000 121,000 90,700 270 �'=g••�:":;-:
02118/13 ;= 180,000 114,000 • 65,600 _ 116,000 270
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chloride 0322/11 `'=' """"`"""`.`,; ` 44,000 50,000 58,000 56,000 1,900 =
MCL=• 05/23/11 _-_-_ ";`JO= -' `�. 44,000 39,000 56,000 48,000 94 -_
FBAC=• 08/23/11 _ :-,i-46i_r3;F 47,000 39,000 80,000 51,000 1,900 is^;,.i(r
NCGOS=250000(2L Sid) 11/15111 ;-3i3EeF �7r-?=?'..'.': I=4=Wc`"! 42,000 41,000 80.000 53,000 1,900 -_
u:ui51-:ji_n-:=ii - -
0221112 --_ -_ - - 41,000 37,000 77,090 51,OD0 1,900 -
06/05112 ,- _ -_ = 53,000 38,000 76,000 54,000 430 '";„1v;
10/09/12 - _ _ i4 r- 51,000 42,000 90.000 56,000 1.900
11/12/12 - _-_= `E3ai _E�1 50,000 37,000 81.000 60,000 1.900 -' �
02/18/13 „-�,,,...v.F;:q,_..a:-.;. ;, 53,000 B 37,000 B 80,000 B 63,000 B 430 .,..,,., i
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manganese 03/22/11 •
- = - - - 13.6 J 88-7 19.5 J 184 1-1 50
MCI,=• 41523/11 = - - "''=,,-,V _ 15.6 J 60-8 36.9 J 230 1.1 50
.'23 _:.1
FBAC=50(SWSL) 0823111 C,-'-,,wF V; ._,,a 10.9 J 44.9 J 2L8 J 311 1.1 50
NCGOS.50(2L Std) 11/15111 - 44 J 22.4 J 97 287 1-1 50
0227/12 _ , - _-- 38.5E 42.1B 53.39 64.2E 1.1 50
' 06/05/12 iii- --- -=_- 17.8J 33.3J 712 405 1.1 56
10/09112 - 221 19.3 J 472 316 1.1 50
11/12/12 ai.?.`._'.`f "r 317 11,1 J 267 382 1.1 50
02118113 s '�..�,_„_,4_: 546 17.2J 274 342 1.1 50
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potassium 0322l11 __- _ _ -- _-_ 709 978 820 778 150 - __-
MCL-• 05/23111 - _- - - 702 670 528 780 150 = -_-= i
FBAC=• 00123/11 = --- 983 681 687 779 150 - "'l
NCGQS=♦ 11/15/11 ---__'- - - - j 691 833 1.300 774 150 ice:
0221112 - m !'L v' - '- 669 828 673 718 150 ic``f=
06f05112 --- --- _ _ 770 798 718 872 150 -_ -___
10/09/12 -_ - -_ _- 891 B 932 6 804 B 841 0 150 = __- = i
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11/12/12 -- _ - 779 669 1,560 833 150 4'r,3 ti [
02118/13 „ ,,._„,„.„,..._..,,-:W.Wx 811 762 713 792 150 ,.�,..-,n.r:_.... •
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pH(standard units) 06/22/10' .;1 'y'ry`°4 1•,'wti.'°°s° 7.06 6.9 7.54 NM
11/19/10 , �;,q• y;, y �,,!,";�', 7.15 6.19 6.21 NM
03/23/11` i= Y"`$:!: .;'s x,1,1,'�`. f 6.03 5.94 7.18 11.9
05/23/11 ,, .'' ,;'°ti,;C 'Xk-`4, 6.92 6.68 7.12 NM
py,��,.�." . °
08/23/11 .axi�,4 t .:111!:" ;r�,,C,='1 ;_' 6-25 5.38 5.32 NM
11/15/11 6.05 ,�.6�.,01 6.87 6.66 6.75 NM
02/21/12 '°_ y:e:` ,;:;wl iIafxb��:i;i ':' 7 6.79 6.97 NM
0.06/05/12 " b�a`��a ! ;YS rWl r ii .! 6.95 6.67 6.99 NM
10/09/12 ., a,P .a r;, ,,, 1. 6.6 6.14 6.11 NM
11/12/12 !:' ;!; sL:`i'�;r rxi',i:!'!:!' 6.96 6.47 6.7 NM
02/18/13 d. .!..N.9 ,d,Se.1,k,:,: 6-82 6.74 7.04 NM
4466 00". .:e ' .;r r ;;;; ks x Y x xix w4Y �:w' w.
6.69 6.41 6.72 11.90
s . 6 ,,'�"1ocwntanda'dire cation^ : ;>. 4iY1d r yi„ , hy 0 0.57 0.46 O.fi2 ::, .! i! r !,Temperature(degrees C) 06/22/10 4,-la 53' "r.8V1 15.8 15 14.9 NM
11/19/10 ''Yk ;a��o aa;r'il'a1 16.2 15.1 16.2 NM
03123/11` . ;A;;; ;: ; 4,i+Y!( z"k
.'.,i, ..,".:,s+;y ,4;N:`�`> 12.1 14.6 13.5 11.9
05/23/11 ',' i e °,' j;:?,:� 14.2 14.9 14.6 NM
08/23111 ,_1:,`�:•:;;'4,i z`5i"' �,%' ! 16.3 15.25 16.1 NM
a `w �dti�Y:v ti..f
11/15/11 16.83 16.07 16.7 15.39 16.54 NM
02/21/12 : y,zz yl`!.e myrr+', y;a' 13.7 14.79 14.48 NM
06/05/12 ' .')`,) Y{,;i!YY '"„," 15.7 14.9 14.8 NM
10/09/12 x k:�;It 41.4!in!: 16.54 14.62 15.89 NM
11/12/12 ;` k:'x„F s;fe�7y,;tia� ;�y.; 16.63 15.36 16.55 NM
02/18/13 3•''.Se:;!;1l_"i:,ili s!;:;;;&!:; 13.4 14.9 14.43 NM
i8lMid fM; �yiky°y a 4. 'w a' Y i ;9 4w *r 15.21 14.98 15.27 11.90'
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Specific Conductance(mS/cm) 06/22/10 4 ,+: 4."'i:;,a5 0.795 0.839 0.476 NM
11119/10 , ,,,Y;F,k �5 "Y.,`1;,,N41r 0.752 0.936 0.709 NM
03/23/11* Y;: �y,L1;:,1.0 t,k 0.793 0.871 0.601 0.763
05/23/11 ri awl'.:�� a3a 1.,`1-' :'' 0.843 0.941 0.641 NM
08/23/II :.;,,ti:sk x$`'."' tip:"' 0.848 0.98 0.826 NM
11/15/11 0.987 0.428 0.681 0.758 0.726 NM '
02/21/12 1 xy� 0.8 0.928 0.828 NM
k a k r1_;rx'h„e s a Y�4Y .'ui .
06/05/12 ' a r f r rq a k 1: 0-821 . 0,97 0.756 NM
10/09/12 xy ;1 i �' i "' 0.83 0.958 0.878 NM
11/12/12 'k' ^�,).;,, ,,r*,,,, 0.888 1.019 0,91 NM
02/18/13 !`` !;%4.;'s;#:I :3).iN 3[�'E=.i=:;' 0.813 0.99 0.776 NM
BHe4 -r:c` "li r•r z 7 a a,a ir`r x1+r i, a � x a'�i: i;s rs l`h �4 0.61 0.93 0.74 0.76
siani ara deer ati R 'x x x 4 1 ,Y 'inX,,4 ,'-o ;,_, .`i z e 1"il1 , r .i�a: 0.05 0.08 0.13 : s xA i i'Y'i i•.

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ORANGE COUNTY REGIONAL LANDFILL
(CLOSED NORTH LANDFILL)
CHAPEL BILL,NORTH CAROLINA
WELL COMPLETION REPORT:
INJ-A+INJ-B
NCDENR PERMIT NO. 68-01
DAA PROJECT NO. R00592-103
Prepared for:
ORANGE COUNTY SOLID WASTE MANAGEMENT
Chapel Hill,North Carolina
Prepared by:
DRAPER ADEN ASSOCIATES
Richmond, Virginia
March, 2011
REM���Pof���Rp�°Q
APR 0 4 gilt

ORANGE COUNTY REGIONAL LANDFILL
(CLOSED NORTH LANDFILL)
CHAPEL HILL, NORTH CAROLINA
WELL COMPLETION REPORT:
INJ-A+INJ-B
NCDENR PERMIT NO. 68-01
DAA PROJECT NO. R00592-103
Draper Aden Associates prepared this document, including all attachments, in accordance with a contract between
Draper Aden Associates and Orange County Solid Waste Management.
This document has been prepared by Draper Aden Associates in accordance with generally accepted standards of
environmental practice for the exclusive use of Orange County Solid Waste Management,for specific application to the
referenced site. No warranty is either express or implied.
Any reuse of this document by other parties, or for purposes other than those specified, without written authorization
from Draper Aden Associates, will be at the sole risk of the party or parties utilizing this document. Draper Aden
Associates shall incur no liability resulting from any and all claims, damages, losses, and expenses that might arise
from unauthorized use of this document
lowistittikplo
Q.'c CAR �°1i
4r fcN3`'O/ -
▪ •
SEAL o RP
31. 1917
•
a'
14.4b• 1:9•f°1-0G'S'•6r.
dada .0• �`�O%,6
J e C. Daniel (MS, PG) Leonard N. Ford, Jr. hD)
Facility Hydrogeologist Environmental Program Manager
fliRECENProt� QR e�ctioa
pquifer
Ain 0 4 zatiti

L-
TABLE OF CONTENTS
1.0 SUMMARY
2.0 INTRODUCTION
3.0 DRILLING
4.0 SOIL AND ROCK SAMPLING
, 5.0 WELL CONSTRUCTION
6.0 ANCILLARY REQUIREMENTS
7.0 SURVEY DATA
. I�

I �.
APPENDICES
f
APPENDIX 1 TABLE
APPENDIX 2 WELL COMPLETION LOGS
APPENDIX 3 WELL CONSTRUCTION RECORDS
I ,.
SI'I'E MONITORING PLAN SHEET IN POCKET AT BACK OF REPORT

ORANGE COUNTY REGIONAL LANDFILL
(CLOSED NORTH LANDFILL)
CHAPEL BILL,NORTH CAROLINA
WELL COMPLETION REPORT:
INJ-A+INJ-B
NCDENR PERMIT NO. 68-01
DAA PROJECT NO. R00592-103
1.0 SUMMARY
On March 1, 2011, Davidson Drilling personnel advanced two air-rotary borings at the Orange
County Regional Landfill closed North facility, and constructed one groundwater injection well
within each borehole. The new wells have been designated"INJ-A"and"[NJ-B".
Injection well INJ-A was constructed immediately upgradient of monitoring well MW-23, and
upgradient of monitoring well MW-24. Injection well INJ-B was constructed upgradient of
monitoring well cluster MW-21S/MW-21D.
Davidson Drilling provided all materials and labor associated with constructing the well. Draper
Aden personnel documented drilling, well construction, and decontamination procedures.
The injection wells were constructed in general accordance with North Carolina DENR
(NCDENR) - Water Quality Division regulations.
Construction details pertaining to the wells are presented on TABLE 1 (APPENDIX 1). Geologic
boring logs, which also display injection well as-built data, are presented in APPENDIX 2. Well
Construction Records are presented in APPENDIX 3. The surveyed locations of the new wells are
shown on SHEET 1 (in pocket at back of report).
RECEIVED 1 DENR/DWQ
Aquifer Protection Section
APR 0 4 2011

Orange County Closed North Landfill
Well Completion Report: INJ-A+INJ-B
DAA Project No.R00592-1 03
March,2011
Page 2
2.0 INTRODUCTION
During March, 2010, OCSWM submitted a groundwater Corrective Action Plan (CAP) to
NCDENR - Solid Waste Section, for addressing groundwater contamination at the closed North
landfill. The CAP included proposed injection wells that would be constructed near the
southeast portion of the North landfill site. NCDENR - Solid Waste Section approved the CAP
on May 26, 2010.
During December, 2010, OCSWM submitted an Underground Injection Permit application to
NCDENR - Water Quality Division. The application discussed the technical details of the
proposed injection wells and the injection processes. NCDENR - Water Quality Division issued
the Underground Injection Permit on.December 20, 2010.
i ,

I—
Orange County Closed North Landfill
Well Completion Report: INJ-A+INJ-B
DAA Project No.R00592-103
March,2011
LPage 3
3.0 DRILLING
f l
L Details concerning drilling methods are provided in this section.
3.1 Nominal Borehole Diameter
The boreholes for the injection wells were approximately 10 inches in diameter, in order to help
ensure that, when using 4-inch diameter wellpipe, the minimum width of the annulus around the
well pipe would be approximately 3 inches. _
3.2 Drilling Methods
The borings were advanced using air-rotary drilling techniques,with an air percussion(hammer)bit.
3.3 Cuttings
Soil and rock cuttings were kept clear of the borehole during drilling and well construction, then
stockpiled adjacent to the borehole.
I I
{

i
I_Y
Orange County Closed North Landfill
Well Completion Report: INJ-A+INJ-B
DAA Project No.R00592-103
March,2011
Page 4
4.0 SOIL AND ROCK SAMPLING
ICJ Details concerning sampling methods are provided in this section.
4.1 Soil Sampling
[not applicable]
4.2 Cuttings
Soil and rock cuttings were observed and documented while drilling was in progress. All drill
cuttings were stockpiled in the immediate vicinity of the borehole.
Li
4.3 Continuous Coring
[not applicable]
4.4 Sample Disposition
[not applicable]
I.�
r -
� I

i
} Orange County Closed North Landfill
Well Completion Report: INJ-A f INJ-B
DAA Project No.R00592-103
March,2011
Page 5
5.0 WELL CONSTRUCTION
Details concerning well construction methods are provided in this section.
5.1 Construction Method
The wells were constructed upon removal of all drilling equipment from the boreholes. The depths
from the ground surface to the top of the gravel pack, and to the top of the overlying bentonite seal,
were measured to the nearest tenth of a foot.
The observed procedure appeared to ensure that the gravel pack and the bentonite seal were placed
at the specified depths.
5.2 Wellpipe and Screen
The injection wells were constructed of clean Schedule 80 PVC pipe having an inner diameter of 4
inches.
The bases of the wells were terminated using factory-slotted PVC screen and a PVC cap. Slots are
0.04 inches in width.
Injection well 1NJ-A was constructed using 32 feet of screen. Injection well INJ-B was constructed
using 46 feet of screen.
5.3 Gravel pack
The gravel pack material consisted of commercially-available pea gravel.
The gravel pack was placed in the annulus around each well riser to a point at least 2 feet above the
top of the screen.
5.4 Bentonite Seal
The annulus around each of the well pipes was sealed using a layer of bentonite pellets, which was
placed directly above the sandpack. The thickness of the bentonite layer in the injection well was at
least 2 feet.

iv l
I
Orange County Closed
North Landfill
Well Completion Report: NJ A l +INJ-B
DAA Project No.R00592-103
I March,2011
Page 6
L
r
IL t
5.5 Surface Completion
The remaining annular space in each of the boreholes was filled with bentonite grout. The grout
was poured into the annulus because of the shallow depths to the bentonite layers.
_,
The injection wells were completed with steel, lockable, 6"-diameter outer casings. A concrete pad
(2' x 2' x 0.3')was constructed around each protective casing.
-j A survey marker was placed in each concrete apron,adjacent to the outer protective steel casing.
rr
TABLE I. (APPENDIX 1) includes a summary of the well construction details.
1 i
r--
{
' I

L.
Orange County Closed North Landfill
Well Completion Report: INI-A+INI B
DAA Project No.R00592-I03
March,2011
Page 7
6.0 ANCILLARY REQUIREMENTS
I •
Information concerning dherence to specifications beyond actual drilling and well construction are
provided in this section.
6.1 Extraneous Material
Reasonable care was taken to help ensure that the borehole was free of all materials other than those
required for well construction. "Materials required for well construction" is defined to include
polyvinyl chloride (PVC) pipe, manufactured gravel, bentonite, Portland cement, and natural soil
materials.
6.2 Decontamination
All drilling equipment was decontaminated using a steam-cleaner both prior to and after its use on
this project.
6.3 Disposition of Wastewater
[not applicable]
6.4 Cleanup
All refuse associated with drilling and well construction was removed from the well site.
II
t '

I ?
Orange County Closed North Landfill
Well Completion Report: NJ-A NJ-B
DAA Project No.R00592-103
March,2011
Page 8
7.0 SURVEY DATA
Summit Consulting surveyed the locations and elevations of the two injection wells on March 2,
2011.
Elevation was determined at two points at each well location:
• brass monument located within the concrete pad
• top of the PVC well pipe
1
Survey data are presented on the TABLE in APPENDIX 1, and on SHEET 1.
` i

{I APPENDIX 1
TABLE
•

TABLE 1
CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONAL LANDFILL-NORTH FACILITY
LOCATION: CHAPEL HILL,NORTH CAROLINA
•
WELL CONSTRUCTION DATA
- 1091 depth depth depth meyured depth elevation *Poston 4
drilling diameter depth lea top to top tolop screen well to water wet ground ttle4syryng pant
Wall type no date drilling method borehole borehole sandlgrawel bentonae screen' Intoner depth' S dale yield stickup WrnCe ()Op df PVC eallpip3
idsabr.licn eel completed contractor Bn Inches) p06010g westing pn inches) lin reel) (inre.g (In feed) (in feat) (in Web (in net) , tin Wet) _ 189°) fib twit) (In feet) lth reel)
MONITORING WELLS
MW-oi 2MW10 04-29-76 GEC 6"air rotary 809763.65 1975572.45 8 36.3 18 18.3 8.10 ,27.8-37.8 18.10 3.8(5-21-76) NM 1,80 504.15 505 s5
MW-04 175MW10 10-31-80 SME 325 HSA 80725043 1974944.46 6 53 39 38 45.33 453355.3; 55,33 NM NM 2.33 547.66 54599 i
MW-05 175MW10 11-33-60 SHE 3.25 HSA 80819287 1074945.72 6 10.1 5 4 9.85 9.35-1985 19.85 NM NM 1.75 522.04 523.79
MW-06 1.75M9810 11-05-80 SHE 3.25 HSA 809820.13 1976569.38 8 285 15 14 19.60 10.629.0 29.60 NM NM 1.10 516.23 517.33
MW-06R 2MW10 08.17-08 DOI 6'as rotary 809803.36 1976567.05 8 51 38 5 43.66 43.88.53.8E 63.68 48(8-17-08) NM 2.66 511,84 514.50
•
MW 07 ABANDONED(063147) •
•
1 1 ,
MW-0711. 2MW10 05-31-07 ROD 6'air rotary 801806.69 1977111.80 6 20 8 4 1192 11.92-21,92 21.02 NM NM 1.92 486.79 48871
6,25 HSA+
08W-13 2805115 03-12-92 ETEC a'rrotary 80945900 1970157_24 9,25 23 6 4 10.96 1096.25,9E 25.96 7(3-12-02) NM 2.96 495.18 498,14
MW-14A 2MW5 03-12-92 ETEC 6.25HSA 808961.24 1978364.4E 925 12 8 4 9.88 9.88-1488 1488 5(3-12-92) NM 2.88 486.46 489.34
6.25 HSA+
MW-14B 2MW14 03-12-92 ETEC air rotary 80894.6.19 1978308.22 8 315 16 44 20.16 20.16-34.18 34.16 6(3-12-02) NM 2.66 486.30 488,98
8.25 HSA
MW-15 2MW15 03-12-92 ETEC as mien' 808378.88 1976058.21 8 28 8 6 13.36 13,36-28.31 28.36 4(3-12-92) NM 2.36 48129 403.65
MW-18 2MW20 0,620-B9 EMA air rotary 807906.50 1976739.73 8 35 6 5 1247 12.47-32.47 32.47 4(6-20-89) NM 2.47 48044 48291
MW-17 2MW20 06-30-89 EMA air rotary 807669.32 18713301.73 8 50 22 21 27.54 27 54-47.54 47.54 10.5(6-30-89) NM 2,54 492.83 495 37
MW-18 2MW20 06-23-89 EMA do rotary 80790044 1075645.97 8 35 6 5 12,67 12.67-3287 32.67 7.1(0-23-89) NM 2.07 502.02 504.89
MW-20 2MW15 09-21-94 ETEC 6"air rotary 807074.11 1975680.42 6 45 28 25 33.43 33.43-48.40 48.43 42(8-21-94) _ NM 3.43 526.00 520.43
4.25 HSA+
MW-215 2MW10 03-27-00 G&C sir rotary 808049.25 1077137.-08 B 23 11 7 15.14 15.14-25.14 25,14 5(4-12-00) NM 2.14 474.70 476.84
4.25 HSA+
MW-210 2MW10 03-24-00 GSC aarotary 806041.46 1077132.91 B 53 44 37 44.55 44.55-54.55 54.55 3(4-12-00) NM 155 47486 476.41
4.25 HSA+
MW-22 2MW10 03-25-00 G&C arrolary 808915,13 1976521.36 0 63 50 46 5402 54.92-6492 64.92 5(4-12900) NM 1.92 481.56 48348
MW-23 2MW10 05-31-07 ROD 6"air rotary 808277.99 1077888 69 6 30 13 8 22 23 22.23-32 21 32.23 NM NM 223 476.62 478.85
MW-2 10 .,06-17-08 DDI 8"ale rotary 808212.67 1977145 27 6 38 23.5 5 28.28 28.28-39.25 38.28 35 4(6-17-08) NM 228 475.45 477.73
1lffll//JJ INJECTION WELLS
m
1 ENJ-A 41W32 03-01-11 DDI 10-ale rotary 808290.56 1977082.68 10 42.8 8 4 14.43 14.43-46,42 46.43 5(3-2-11) NM _ 363 475,22 478.85
II
NJ-B 41W46 03-01.11 DDI 16"910 rotary 1308051.32 1977020.12 10 64 18 14 21.54 21.54-67.54 67.54 0.65(3-2-11) NM 354 47392 477.45
Elevations expressed In feat above mean sea level.unless otherwise noted.
ELEVmp and ELEVgs ore corrected to latest survey data(surveyed May,1999:wells►8W-21S,MW-21 D,WY-22 were surveyed June,2000;wells MW-07R,MW-23 surveyed July,2007;wells
MW-06,J4 and MW-24 surveyed June,2008;wells INJ-A end INJ-B surveyed March,2011)
stickup=elevation of measuring point-elevation of ground surface
DOt=Davidson Drilling,Inc.(registration#2108-A)
EMA Environmental Management Associates,Inc.(registration#446)
ETEC=Engineering Tectonics,PA(registration#2091)
GEC=Geotechnlcal Engineering Co.(registration it unknown)
GEC=Graham&Currie(registration 02373)
ROD=Richard Simmons Drilling(registration#2323)
SME=Soil&Material Engineers,Inc.(registration#2257)
NM=Not Measured(Unknown
WIEri,,en rS550 tie

`~I
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APPENDIX 2
WELL COMPLETION LOGS

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f` DRAPER ADEN ASSOCIATES LOG OF: INJ-B
i- , Engineers • Geologists • Hydrologists (3 of 3)
Project Number: R00592-103
Client: OCSWM Drilling
Davidson Drilling,Inc.
Project: Orange County Landfill-North:Injection Wells A&B Driller: Ty Davidson
g
Location: Chapel Hill,North Carolina Meth 10"Air Rotary
w North: 808,051.32 East: 1,977,090.12 Logged by: J.Daniel
Total
ir Depth 64.0' Elev GS:473.92 Reference: Ground Surface Completion Date: March 1,2011
i Samp Blow N Depth Stratum
ID Counts Value Scale DESCRIPTION(USC) GEOL Elev LOG H2O REMARKS
x x x b w c
X X X °& °Q°
_ _ X x x 1, DJO ❑
GREENSTONE. xxx c��P OTC
x x x
x x x 4
X x X oOD�oOD Gravel.
xxx D r p C
- - X x x 3 0f,°oat
X X X
x X X O D O D
, X X X DO DO
- -
x x x x x x oc °Oo
) }a D��aD
xxx �
— 55— xx• x 'O �'0 4"LD.,Sch.80,PVC Well
X X X °a° °3 Screen(factory slotted:
_ _ X X % }O D,�O 13
X X x
DO r O 0.04").
_ x x x
x x x oo° a3-
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x x x °!1°- °oa
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xxx409.92 �� ��410.02
,a 409.92 Injection Well B appears
Boring terminated at 64 feet. to have been constructed
— 65— Injection Well B constructed. in general accordance with
in
japplicable plans and
F. specifications.
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I APPENDIX 3
WELL CONSTRUCTION RECORDS
� 'a

WELL CONSTRUCTION RECORD
North Carolina-Department of Environment and Natural Resources-Division of Water Quality-Groundwater;?ection
WELL CONTRACTOR(LNDIVIDVAL)NAME (print) 4 k4 J v Ei s e ,1 CERTI IC
�'CATIOty ii. .Li ti rA
•
WELL COPiTKACr41i COMPANY NA�4E_
1 `35 c; i r 41 ��c?. �l_f1 PHONE # K�fs l` 7.. ..2i;
STATE WELL CONSTRUCTION PERMITS ASSOCIATED WQ PL+RMITT11 _\i3:7 6566 f
• (ifapolicable) (if auplicable)
sear ,
1. WELL USE(Check Applicable Box):Residential 0 Municipal/Public 0 Industrial 0 Agricultural 0
Monitoring CJ Recovery 0 .Heat Pump Water Injection 0 Other..14 If Other,List Use 1-'i - > n
2. WELL LOCATION: Topographic/Land setting
Nearest Town:Cif�1el, County 0 Pafille ©Ridge £Slope °Valley pE1at
iS!y Fr6,�' l Ad r (ebcvic Rpm/Biala boa)
(Street Name,Numbers,Community,Subdivision,Lot No.,Zip Code) La d Son ttide of well to ati
35/5$45;7 N ? oy137,7 1Al
3. OWNER: a r . ae-±' �►� s rr 45 / n� Nd/ degrooalmiautcslscmnds
Address i ,/b4/7 1<itt0 f Latitude/longitude source:$GPS❑Topograghic map
($(Sect o Routs No.) (check box.)
. h l6e) gill A16.- DEPTH DRILLING LOG
CirS,or n State Zip Code From To Formation Description
(f12 )- %I-aSoQ - 0 511 cm
Area coda Pisan:number i ;/
4. DATE DRILLED 3 i ]/ ,
3. TOTAL DEPTH: y , 3
6. DOES WELL REPLACE EXISTING WELL? YES.0 NO 155.
7
7. STATIC WATEi LEVEL Below Top of Casing: 60 5 , FT.
(Else"+"if Above Tap of Casing)
a,.,-,1 , 8. TOP OF CASING Is U FT.Above Land Surface'
. �':1 *Top or casing terminated Odor below land surface requires a
variance in accordance vtitir 15A NCAC 2C.0118.9. YIELD(gpm): /il" METHOD OF TEST
10.WATER ZONES(depth): 30 LOCATION SKE'ICIS
11. DISINFECTION:Type AM- Amount /ll- _ Show direction and distance in miles from at least
12. CASING: Wall Thickness two State Roads or County Roads.Include the road
Depth or Diameter Wet tlFt. Material numbers and common rood names.
From o To /6. Ft y„ -n <5 i l , %.
From______To Ft. ----- YJFq/...
From • To Ft.
13. GROUT: Depth Material Method ,-
From i-1 .. Ft r,t ia,2i i -7 p Li r'
From Li To `3 Ft. a fl, c.JV 4.5 pryr;C i t �S ,
14. SCREEN: Depth Diameter S1ctize serial 15 1d �i
Froa4l0,1 Tof Ft Y in c,{� io. 7C �lt
From To FL in. . in. i �_
15. SAND/GRAVEL PACK: i '
Depth Size Material / �v
From To_ '0.4 Ft. Phi r.iU! _
From To, Ft. f o 4-?ii-a KL.i — r -- -
16. REMARKS:
i DO H1I tEBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH 15A NCAC 2C,WELL
CONS • CTI )S�ARDS, THAT A COPY OF THIS RECORD HAS BEEN PROVIDED TO THE WELL OWNER
SIGNATURE OF ON CONSTRUCTING THE WELL DATE
Submit the original to the Division of Water Quality,Groundwater Section,1636 Mali Service Center-Raleigh,NC
27699-1636 Phone No.[phone],within 30 days. OW-1 REV.07/2001
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r-
•
LL CONSTRUCTION RECORD
North Carolina-Department of Environment and Natural Resources-Division of Water Quality-Groundwater Section
WELL CONTRACTOR(INDIVIDUAL)NAM (prig!) 1 N.{ 4.J ?Ct S t i t CER'TIFICATION P c t _
WELLCONTRRACTORCOMPANYNAME -)0i\P ;.(kSGI1 �( I1in,j � r t,-. PHONF # (?'�'ci'7•}.' it' `
r / ']
STATE WELL CONSTRUCTION PERMIT#
As5®CIAT5U wry Ir srr# Vs; 0-nc3 4 =7
tf= ltcab2e "(if aLmlicable) E
1. WELL USE(Check Applicable Box):Residential 0 Municipal/Public II Industrial 0 Agriculture
Monitoring 0 Recovery 0 Heat Pump Water Injection 0 Othcrg If Other,List Use Ln Jr; l./sl-,"").
2. WELL LOCATION: J ' �� �c Top€sgrap cfl aatd sett ig
Nearest Town C � � /r County . RTr� °Ridge ®Slope ©Valley lit
f 6y)cf ' sir' ? jft) (Cheekappitipli •ox) r
i (Street Namc,lNumbers,Community,Subdivision,Lot No.,Zip Codo) Lati dell n tude of well Io A
. j -35-St13.V 1 77/og 37 7 Id
3. OWNEI~`:0i!e lt% Co1i/ '3i`!/rs ^.r'{i7'. � ,1s�r :,
Address i f7 11T;a f 1f SI�d" Latitud llongitttde sour ce:VGPSDTopographic map
(ckxk bog)
strector auteldo,) DEPTH pR1LLI NC,I,f)C
��JCity 1/ s cZip Code From Toy Formation Description
. Asea code-Phone 4_ DATE DRILLED 4i;,/l
5. TOTAL DEPTH: (.`i ---
•
6. DOES WFT.I REPLACE EXISTING WELL? YES O
7. STATIC WATER LEVEL Below Top of Casing: lb 6 FT.
p (Use'4,"it Above Top of Casing)
".' S. TOP OF CASING IS L1 FT.Above Land Surface* •
.:.:.e, *Top ormipg tzrtelssaltd a?for ba3sev land sedate requires a
variance in accordance whit ISA.NCAC 2C.elIS.
9. YIELD(gpm): /VC METHOD OF TEST -
1.0.WATER ZONES(depth): s t , CATION SKETf;I
I L DISL ECTION:Type P Pr Amount ikr!A- Show direction and distance in miles from at least
12. CASINO: �Wall thickness two State Roads or County Roads.Include the road
Diameter er Weight/Ft. Material numbers and common road nam.
•
From I _ToDp l 6 Ft. 9 d =ic 4. .. ,r V<i
From To _Ft. -- - 1 1
From To Ft —- \\ 1-
13. GROUT: Depda Method r'
Material
t� To_Ti__# Ft.'ss-'�.�n�a :i' ,c ;' \\ 1
From o _ 'yl aii Gig i-'" , !
From T �Ft. .t� y�� ,
14. SCREEN: Depth Diameter Slot Size Ma t st f 3' -&'%
Froth ! Tol Ft. in, Ci,GN`/ in. 11C tip ,'
Frognt, To Ft.� _in. in. -f\ i(
PACK
�EI. `=�.�
15. SAND/GRAVEL ; I.
Depth. Size Niatenai 5.00
C To 4 Ft. yU� c C Tf, — - = '
From _
From To Ft. 1 �i t
�L. ,,T7
16. REMARKS:
I DO BY C T1FY THAT TI;I1S WELL WAS CONSTRUCTED IN ACCORDANCE WITH I 5A NCAC 2C,WELL
CON :171 t1 T DARDS,AND THAT A COP?OF THIS RECORD HAS BEEN PROVIDED TO THE WELL OWNER
`c.4'�_`= �'` -- HE WELL !1DA/j '
i SIGNATURE OF PERSON CONSTRUCT I G T
Submit the original to the Division of Water Quality,Groundwater Section,1636 Mall Service Center-Raleigh,NC
27699-1636 Plume No.[phone],within 30 days. OW-1 RE!'.07/2001
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