NC0026000_Plan of Action_20091214

NGcZMD
TOWN OF TABOR CITY, NC
MERCURY MINIMIZATION PLAN
RESPONSE TO ADMINISTRATIVE ORDER
#CWA-04-2010-4751

December 14, 2009
Coleen Sullins
Director, Division of Water Quality
North Carolina Department of Environmental and Natural Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
REF: Tabor City NC Administrative Order #CWA-04-2010-4751
Dear Sirs,
Please find herein the Town of Tabor City's response to the administrative
order imposed on October 15, 2009. The enclosed mercury minimization
plan details the efforts that the town will make to remain compliant with
the mercury discharge limits specified by NPDES. Some elements of the
plan have already begun, with all components expected to be operating
within 45 days. The facility has been in compliance for over 4 months and
we foresee no reason not to remain so.
Thank you,
Al Leonard Jr.
Town Manager

TABOR CITY, NC
MERCURY MINIMIZATION PLAN
in response to
ADMINISTRATIVE ORDER # CWA-04-2010-4751
Douglas F Mundrick, P.E.
Chief, Clean Water Enforcement Branch, Water Protection Division
ATTN Laurie Jones, USEPA, Region 4
61 Forsyth St. S.W.
Atlanta, Georgia 30303-8960
Al Leonard Jr.
Town Manager
Tabor City Wastewater Treatment Department
P.O. Box 655
Tabor City, NC 28463
Prepared by:
Hobbs, Upchurch, & Associates, P.A.
8262 Market St., Suite 201
Wilmington, NC 28443
Barry King P.E.
910 686 1212
December 14, 2009

Contents
MercuryMinimization Plan............................................................................................................ 3
Introduction.................................................................................................................................... 3
Description..................................................................................................................................... 4
Faci I itv......................................................................................................................................... 4
Recent Modifications to the Plant.............................................................................................. 4
Sourcesof Mercury ........................................................................................................................ 8
DMRLOGS.................................................................................................................................. 10
Activities Specified by Administrative Order................................................................................ 14
Accelerated Biosolids Wasting schedule................................................................................... 14
ProposedSludge Wa ing Rate............................................................................................. 14
AcceleratedSludge H uling................................................................................................... 14
MercuryTesting....................................................................................................................... 14
Plan to Meet Current NPDES Mercury Discharge Limits........................................................... 15
Exhibits.......................................................................................................................................... 16
DMR MERCURY CONCE TRATION AND LOADING....................................................................17
Sample Analysis Standard Operating Proceedures for methods 1631 and 245....................... 44
Method1631 low level .......................................................................................................... 44
Method 245.1 high level Meritech Inc................................................................................. 50

Mercury Minimization Plan
Response to EPA Administrative Order No. CWA-04-2010-4751
Tabor City, NC
December 02, 2009
Introduction
On October 15, 2009 the town of Tabor City Wastewater Management Department was issued
an Administrative Order (AO) for consistently discharging higher concentrations of mercury
than those specified by its NPDES permit (12ng/L). Section IV of that order specified tasks for
the town to complete to avoid further action. Those tasks and the town's schedule to
implement them are described herein.
Item A. of the AO requires the town to develop a Mercury Minimization Plan for reducing
concentrations and mass loading of mercury in the effluent stream. The plan, at a minimum,
should contain, 1) an accelerated biosolids wasting schedule, 2) a detailed description of
Mercury testing, and 3) a plan to consistently meet or exceed current NPDES permit limits for
Mercury.
While it is the NPDES permit holder's responsibility to control the effluent concentration of
mercury, the most effective method for reducing discharge concentrations is to stop the source
of the mercury before it is mixed with the entirety of the treatment plant influent flow.
The town of Tabor City intends to take every measure practicable to stop the excessive
discharge of Mercury into the WWTF effluent stream. A collection of measures such as
assisting known Hg contributors to stop, discovering new contributors through a structured
sampling investigation, education of the collection system users, and changes in the way that
sludge is handled and stored at the plant will have effective outcomes on the Hg discharge
concentration.
The combined measures will likely make the mercury concentration a non -issue in the coming
years.

Description
Facility
The Tabor City WWTP is permitted to discharge 1.1 MGD into an unnamed tributary of Grissett Swamp,
rated "C Swamp waters in the Lumber River basin.
The plant is comprised of:
• Influent Pump station 2000 GPM
• HDPE Lined Equalization Basin
• Parshall Flume
• Dual Channel Mechanical Bar Screen and Manual Screen
• Grit Chamber
• Dual Train activated sludge extended aeration basins using mechanical surface aerators
• Dual clarifiers 60 and 50 feet in diameter
• Four Waterlink Super Pressure sand filters
• Pump Station for sand filters
• Dual Sludge Pumps
• UV Sterilization
• Ultrasonic Flow Meter
• Backup Power Generator
The facility is located off U.S. 701 bypass east of Tabor City, N.C.
Recent Modifications to the Plant
In October of 2007 the Tabor City WWTF began renovations which disrupted the normal plant
operations for a total of 16 months. The general purpose of the project was to replace and/or repair
deteriorated conditions at the facility to provide increased treatment efficiency and improved effluent
quality.
New reinforced concrete aeration basin structures replaced the deteriorated shot-crete lined basins.
The aeration basins were built one at a time to keep the facility online during construction and are of
the same capacity as the old basins and occupy the same footprint as the old basins. A new hypalon
lined equalization basin provides storm surge capacity from infiltration and inflow into the system.
The existing influent pump station was improved by adding a containment wall around the station to put
it into compliance with the 100 year flood plain, plus the addition of a third influent pump and new
force main from the influent pump station to the new equalization basin to allow better plant influent
flow control and improved storm surge control flow.
The existing headworks received a new mechanical bar screen in the existing channel adjacent to the
existing manual screen. The existing concrete grit removal chamber was completely replaced. A new

splitter box was installed to allow better control in directing the flow from the headworks to the 2 new
aeration basins.
A new sludge hauling load station with pad and drain now allow easier truck loading and prevents spills
during the contract hauling and disposal of sludge from the facility.
A new laboratory building gives the operators a safer, cleaner, and updated facility that allows better
operational control of the plant. The existing lab building received a new roof, sidewalk, and drainage
improvements and will be used as an electrical equipment and storage building. The old sludge drainage
bed foundation walls were demolished to make room for the new lab building.
The existing chlorine contact basin was fitted with ultraviolet disinfection units.
Construction at the plant finally ended in March of 2009. During construction entire units of the
treatment process were dismantled and unavailable for use in the treatment process. From August to
March of 2009 there was no physical way for the plant to waste sludge resulting in large masses of
mercury bearing sludge being released into the aeration basin and subsequently discharged. The no -
sludge -waste mode of plant operation created quite old sludge ages resulting high SRTs that could
rerelease mercury and no exit stream for the mercury to leave the process.
The items listed are major observations from the plant log illustrating the unstable conditions that he
plant endured which ultimately led to this AO.
• October 1, 2007 -
Major Upgrades began by T.A. Loving
• October, 2007 -
Equalization Basin Construction started
• February 2008 -
Upper Aeration down for upgrades. All flow diverted to lower
aeration basin.
• August 1, 2008 -
Started flow of Influent to Upper Basin
• August 11, 2008 -
Started seeding the upper basin from lower basin
• August 18.2009 -
Upper basin overflowing to clarifier
• September 2008 -
Lower Aeration Basin down for upgrades
• February 27, 2009 -
Started seeding lower aeration basin.
• March 4, 2009 -
Started returning sludge from lower aeration basin. The aerator
nearest the overflow to the clarifier was not working.
• May 2009 -
No sludge wasted from the lower clarifier until 5/20/09
• July 09 2009 -
Aerator Repaired
The renovations of the plant are now complete and operators have been able to maintain and control
the treatment process. Effectively operating a plant while it is under construction, with entire units
disappearing and then reappearing in a different size or flow takes time to learn; the operators are to be
commended for their efforts during that time.
Figure 1 Shows the Tabor City W WTP hydraulic profile and flow schematic as it now appears.
Figure 2 W WTP Plan View of Renovated Tabor City W WTP the plan view of the plant to understand the
layout and scale of the facility.

TOP OF WALL: 85.75'
PROPOSED INFLUENT WEIR
MANHOLE ELEV: 83.75'
RIIM: B50 a OIP DRAIN
INV 68.5' INV: 69.75•
-p••gc�,fyp,���. EFFL R
EXISTING 16-
,pn.,...
INVERT: 87.52'
EXISTING INVERT:
Ap7��lZ• , . a
YN D-I 9
BB.61'� EFFLIN �•TJ' QEy'
RRR 75.5'
: 83J• a Dd°
WV Ill
12. OIP
INiLh WEIR
PROPOSED 2'
76
EL,EV: 78.5
- Ex MH Nv:
88.81'
~e' DIP EX W
CONTAINMENT
6-_
"�
�V.
N WV: 77.8t'
SP�IJTTER Ex NH INVERT:
WALL
1ti
t ,
EX. MN Box INVERT:
RIM
El
Il all EX Vol 76.99'
71.53'
�'
INVERT: 75.5T `•
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EX DRAW
d'
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W. 83.0'EX CAUSTIC
p�
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/�
�'
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_
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EXISTING I
DRAW
'r EEEV: 76.44V*
B
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W. 63.0'
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-X MH 2�. INVE�.
R M: 72 09'
TCP OF WALL: 78.5'
�T
a
,I�2.�� 80.6Z'
it WV: 62.8'
8
_ l
15
EX WEIR MH
INVERT:
72.J8' E% MH E-1
-332' p INVERT: 70.98'
RIXArERWT:
GRAIN
P FM
EX BYPAW MH
INV: 83.5'
6'
INERT: 71l
.I/.✓jx. MANHOLE 11
PROPOSED
PERIMETER TOP OF
INVERT: 70.9'
MANHOLE #27
RAIN BANK: 77.75'
FILTERED WATER
RIM: 77.0'
_ _
B
INVERT. 71.0'
INV: 63.2'
-
15' OVERFLOW
_
INVERT: n.5'
PROPOSED
- "�
��
TOP oT WALL n.5• A
RIIM: 77.0' 6
AN, 62.0'
INTFLOAT
ASSEMBLY �r.,J'�!'�
1' •rWE Al �1
'
�MrWR
6 INVERT: 70.6.6'
�Br� ice`, PROPOSED
V ' W LIGHT
V4`� I� DISINFECTION
c - EOUPMEN7
15' INVERT: 'S' INVERT: VANMOLE 67.7a' �,�' 68,25' NvERP. 69.1'
IB' INVERT:
?ROPOSED 88.93'
6 s MANHOLE TOW: 72.75'
RIM ELEV: 73.0'
NVERT: 65.0'
HMRAUUC PROFILE AND FLOW SCHEMATIC
%IS
NOTE: 100 YEAR FLOOD PLAIN ELEVATION: 72.0'
Ex. MH
INVEIrl SON
Ex. MH
' INVERT: Ill
,TOW: 82.85'
1
SEX IN
-INV: 79.2'
EX MM
NVERT: 76.O4'
8' UNFILTMED
FORCE MAN
FILTERED
L 8' CI SLUDGE
DRAW -OFT
MH D-4
RIM: 79.06'
:NVERT: 72.33'
6' BACKWASH
W U
J
LL Q
02
x W
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Figure 1 Hydraulic Profile and Flow Schematic, Tabor City WWTF

REYISCNS
WORE SCHEDULE (EXIST111C)
Fw—mjE
SofDuEE (PROPOSED)
5w 1 Desm t I bw
�W:
. ..... 11 cm�
e,-Ri��,
IM1440,11
RIM ELEV.
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RN ELEV. IWERT•
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. .. . .. . .
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.
, ",§ 4
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as"), 68.5'
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7133'
610
(31
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770' 620'
7T
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R TEND
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. . . . . . . . FXSIIN(; YMI! PIPING
— PRCPOSED 'LARD PIPING
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7 85.5y —Fs7 srom
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8 89.23' 85J,
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1 78.0' 70.0,
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EX STING CONTOUR
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NOTE:
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L—,RWOPOSED
FLOATING
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FRCROSE W LF
TER
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BASIN
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I INSTALL XV )ISINFECTICq
I NV:: .25'
1 SYSTEM IN EXISTING C1.
2 BIAS N
a 10 20 Y1 0 SO
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`EXISTINIG 18" RCP
`NV: 66.03'
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PROPOSLC
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EXISTING
TV, 67
71'
0
G-10-ALT
C. 1130 200 300 PROPOSED PIPING nLAN-nfr,, 5oo
600
100
Figure 2 WWTP Plan View of Renovated Tabor City WWTP

Sources of Mercury
Hospitals
There exist 3 medical centers or doctor's offices attached to the Wastewater collection system for Tabor
City. None of the facilities have equipment that could cause a mercury discharge but the collection sub -
drainage to which they are attached is being sampled for mercury as part of this mercury reduction plan.
• Generations Family Medicine,
• Tabor City Family Medicine
• South Columbus Medical Center
Dentists
One dentist office is attached to the town's collection system. That office has been suspect for previous
mercury loading to the W WTP as evidenced by wastewater samples taken in the manhole where the
office connects to the collection system. As part of this plan the subdivided collection system has been
sampled to positively confirm that the dentist is the source of the town's mercury influent. Once sample
analysis is complete, (approximately 3 weeks beyond December 10) a proof positive conclusion can be
determined and presented to the dentist who remains skeptical of his contribution.
Samples from the discharge manhole outside of the office are shown in Table 1
Table 1 Mercury Concentrations from Dentist Office manhole samples
Sample Date
Mercury Concentration in Dentist Manhole (ng/L)
01/14/2009
4620
02/03/2009
10620
02/17/2009
11120
06/01/2009
2160
• Trip McClendon, DDS
The dentist was told in person by the town manager that he was causing the W WTF to exceed their
discharge limits for mercury. The dentist assured the manager that it could not be him since he had an
amalgam trap installed in his office drains but to be certain he would see to it that the cartridges within
the trap were changed for new ones. After a period of time the manhole was re -sampled with the
mercury levels increased. The dentist office staff stated the filters had been installed incorrectly and
they would be immediately serviced. With more time the effluent has remained high.
Schools
Three schools discharge to the collection system. Elementary and Middle schools are unlikely to handle
mercury containing equipment but the high school may still have mercury thermometers, manometers,
or barometers which will be investigated and secured if found.
Tabor City Elementary School
750 students
Tabor City Middle School
300 students
South Columbus High School
800 students

Industrial Facilities
One small printing company operates in Tabor City. Mercury samples at their manhole connection
measured 26.7 ng/L.
Residential Collection Systern
There are 1286 homes and a population of 2625 people that are connected to the collection system.
Public education concerning the safe and responsible handling of mercury containing products is
intended to be disseminated

DMR LOGS
The town has DMR records from August of 2006. From those records, flow and concentration of
mercury overtime tell the story of the changing conditions and the resulting efficacy of the plant under
various conditions and what to expect in the future.The measurements were compiled into a single
table from which calculations and plots could be performed.
The concentrations and the mass loading in the Influent are plotted in Figure 3. Mercury in the Influent
has been measured since March of 2008.Over the measured time frame the influent has averaged
129.4 ng/L or 0.172 grams per day of mercury flowing into the plant. With the exception of two days
during the 19 month period the loading from all sources to the plant has been less than lgm per day.
Conversely the logs for the effluent record large swings in both concentration and loading.
Concentration is plotted in Figure 4 along with the time line of renovations showing the plant
performance before, during, and after the renovations. Mass loading of mercury in the effluent is
plotted in Figure 5. Over the period before the renovation of the plant (segment A in Figure 4) Mercury
concentration averaged 13.4 ng/L with loading averaging .023 grams/day. While the average value of
concentration exceeded the discharge limit there existing only one measurement where the loading
approached 1 gram/day.
When the plant was under construction during segment B in Figure 4 the effluent concentrations
reflected the condition that the sludge flow within the plant code not be controlled or predicted. During
that period sludge from the waste sludge digester was obviously returning to the aeration basin carrying
with it high mercury content. Since the effluent concentration far exceeded the influent concentration
the additional mass of mercury had to have come from the sludge storage. During segment B effluent
concentrations averaged 460 ng/L with .91 grams/day loading.
Once construction was mostly complete and the plant was beginning to recuperate, (segment C in
Figure 4) effluent concentrations improved but had events of excessive mercury concentrations due to
various plant components not functioning or not functioning in the way the operators expected. There
was no trend of performance during that time.
Once the plant components were confirmed as functioning or made to function properly, and
understood, (segment C of Figure 4) the facility has shown that it can easily achieve the treatment limits
of the NPDES permit of 12 ng/I. Since July 6, 2009 the effluent concentration has not exceeded the
discharge limit concentration and has averaged a discharge mercury concentration of 6.6 ng/L and an
average loading of 0.008 grams / day. It should be noted that the facility achieved a 8.7 ng/L effluent
concentration while absorbing its largest peak influent concentration of 271 ng/L From a mass loading
perspective the facility now consistently removes 96% of the influent mercury from the influent stream.
Now that the Tabor City W WTF is working as designed it is expected the operational improvements
proposed will ensure that the facility will exceed the treatment limits in the future.

1200
1000
2 4(
2(
Tabor City, Hg, Influent Concentration (ng/L)
and Loading (gra s/day)
—Influent Mercury Concentration
— Influent Loading
fl
2.50 1
1.50
t.
0
d
a
4
1.00 1
0.50 1
0 -�-�
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Figure 3 Influent Concentration and Mass Loading

200
Tabor City, Effluent Concentration
180 Hg (ng/L) & Renovation History
160
0 120
M
fti
c
c 100
0
u
m
s
Z
80
a1
60
40
20
A -Typical operation before renovations.
B- Plant reducted to one aeration basin.
-one clarifier, no ability to waste sludge due
to construction.
C- Plant returned to operation with the new
equipment- some components not
functioning.
D- All plant equipment restored with
consistent operation schedules.
0
Construction Begins
Major disruption to sluge
due to pipe and basin replai
—Hg Effluent Concentration
—"Hg Treatment Limit"
C
Aerator Restored
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Figure 4 Tabor City Effluent Hg Concentrations & Renovation History

35
—
—Effluent Hg Grams per Day
Perlod of
30
construction
activities
25
m
=
p
20
w N
-
---
u E
15
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0.35
EffluentHgGramsperDay
Tabor City, Effluent Loading
—
I
Hg (grams/day)
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n
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Figure 5 Mercury Effluent Loading on multiple scales

Activities Specified by Administrative Order
Accelerated Biosolids Wastine schedule
MLSS control set point and Sludge Wasting
Steve Calderwood of Meritech, the contract plant operator, wastes sludge each weekday to control the
MLSS at approximately 3100 mg/L. While completely mixed activated sludge processes may operate at
MLSS concentrations between 1500 and 6500 mg/L (Metcalf & Eddy), the Tabor city plant equipment
was designed to operate at a MLSS of 3000 mg/L.
Each day the operator measures the MLSS concentration from a grab sample of the aeration basin,
measures the sludge settlabilty with a settlometer, and measures the sludge blanket depth in the
secondary clarifier to estimate the volume of sludge to be wasted on that day. The operator's objective
is to maintain the MLSS concentration at approximately 3100 mg/L.
Proposed Sludge Wasting Rate
The Accelerated sludge wasting schedule will be to change the MLSS concentration from 3100 mg/L
down to 2900 mg/L. The operator feels that this sludge wasting rate can be attained and still not
endanger the BOD reduction and nitrification capabilities of the WWTF. This 6.5% reduction in MLSS
concentration will result in more sludge exiting the aeration basins and reducing the SRT.
Accelerated Sludge Hauling
While wasting sludge from the aeration basin may move mercury out of the treatment train it does not
remove the mercury from the site. Mercury absorbed onto sludge can be released under anaerobic
conditions and transported back to the treatment process in the digester supernatant. In the past,
sludge was stored at the facility until there was no more capacity for wasting, about every 7 months. At
that point the sludge was hauled away and land applied.
In the future the town proposes to haul sludge every 120 days. In this way the mercury that is
sequestered will be removed from the site without the possibility of entraining in the decant return plus
the accelerated sludge wasting will require more storage and settling volume. The sequence will begin
as soon as a hauler can be contracted.
Mercury Testing
Meritech Environmental Laboratories is a wastewater testing and controls contracted supplier that
operates the Tabor City W WTF and chemically analyzes wastewater samples collected there. Operators
as a result are therefore trained to take samples by the chemical analysis technicians to be certain the
samples are representative of the process without carryover or contamination.
As stipulated in the AO samples of the influent, effluent, and MLSS in an aeration basin shall be taken
weekly on a consistent schedule and location with a repeatable technique and analyzed for total

mercury as Hg. The results of the tests shall be submitted to EPA when they are submitted to NCDENR.
Sampling for mercury at the three prescribed points began upon receipt of the AO.
The methods for analyzing the samples are included in the Exhibits section.
Plan to Meet Current NPDES Mercury Discharge Limits
Locate and quantify Mercury sources within town sewer collection system. A structured sampling plan
has been executed to inventory the mercury contributors in the town. Since there exist only 6 pump
stations and one gravity main flowing to the W WTF samples of each of the influents to the pump
stations and a manhole access where no other laterals are attached to the gravity line were sampled and
are presently being analyzed to exclude other possible mercury sources other than the known
contributor at the doctor's office. Since surface water does infiltrate into the collection system there
will be some background mercury from the most prolific mercury contributor to the environment, coal
burning fall out.
The structured samples will clearly isolate the branch(s) of the collection that contribute mercury. Once
identified future samples taken upstream in tributary sub -branches will further isolate the source. The
sequential sampling upstream will positively identify the contributor without spending unnecessary
monies since each test cost the town approximately $150.
Amalgam problem from Dentist's Office. With the dentist's office identified by the collection system
tests, the town will work with the dentist to mitigate his discharge to the collection system. If the
mercury flow persists, the town will use a vacuum truck to flush out the office drain lateral to move out
mercury that may be caught in the drains.
Dentist's amalgam trap model and operation: The dentist office amalgam trap model and operation will
be explored by the town by contacting the manufacturer to get their advice and if necessary bring a
factory representative to the office to ensure it is installed correctly and is operating.
Dentist's plumbing map: Smoke or dye tests will be performed on the plumbing within the dentist's
office to be certain that sinks not intended to be attached to the mercury trap are indeed not attached.
Utility sinks can be a source of acid or oxidizing cleaning products which would suspend mercury into
solution and flow through to the collection system.
Dentist's cleaning procedure: The dentist office likely contracts out the cleaning of the office. The
cleaning personnel may not know the chemistry of their oxidizing cleaners (bleach) on the amalgam
trap. The manufacturer of the amalgam trap will instruct the dentist office on the proper cleaning of the
operator stations to avoid mobilizing amaolgam captured in the trap.
Dentist's Xrav slide development: Since acids are used to develop xray slides then the confirmation that
the developing drain does not attach to the amalgam trap will be verified.
The town will contact the schools, clinics, and businesses within town to advise them on ways
to avoid discharging mercury into the collection system. The town intends to help the dentist
office or any other producer to eliminate their mercury loading to the collection system.

Exhibits

DMR MERCURY CONCENTRATION AND LOADING
Tabor City DMR Records of Flow and Mercury Concentrations
Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent
Hg (ng/L)
Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
8/1/2006
0.3129
12
1.25
0.0015
8/2/2006
0.3670
12
1.25
0.0017
8/3/2006
0.3530
12
1.25
0.0017
8/4/2006
0.3550
12
1.25
0.0017
8/5/2006
0.4210
12
1-25
0.0020
8/6/2006
0.4170
12
1.25
0.0020
8/7/2006
0.4380
12
1.25
0.0021
8/8/2006
0.5180
12
1.25
0.0025
8/9/2006
0.6600
12
1.38
0.0034
8/10/2006
0.5730
12
1.38
0.0030
8/11/2006
0.5960
12
1.38
0.0031
8/12/2006
0.4740
12
1.38
0.0025
8/13/2006
0.4170
12
1.38
0.0022
8/14/2006
0.4700
12
1.38
0.0025
8/15/2006
0.3980
12
2.98
0.0045
8/16/2006
0.4000
12
2.98
0.0045
8/17/2006
0.4210
12
2.98
0.0047
8/18/2006
0.4140
12
2.98
0.0047
8/19/2006
0.4080
12
2.98
0.0046
8/20/2006
0.3750
12
2.98
0.0042
8/21 /2006
0.3800
12
2.98
0.0043
8/22/2006
0.5750
12
2.98
0.0065
8/23/2006
0.5850
12
1.89
0.0042
8/24/2006
0.5070
12
1.89
0.0036
8/25/2006
0.4760
12
1.89
0.0034
8/26/2006
0.4450
12
1.89
0.0032
8/27/2006
0.4150
12
1.89
0.0030
8/28/2006
0.5950
12
1.89
0.0043
8/29/2006
0.5600
12
1.89
0.0040
8/30/2006
0.4770
12
2.26
0.0041
8/31 /2006
0.6680
12
2.26
0.0057
9/1/2006
0.8290
12
2.26
0.0071
9/2/2006
0.8220
12
2.26
0.0070
9/3/2006
0.5610
12
2.26
0.0048
9/4/2006
0.5280
12
2.26
0.0045
9/5/2006
0.7900
12
2.26
0.0068
9/6/2006
0.8520
12
2.26
0.0073
9/7/2006
0.7600
12
13
10.0374
9/8/2006
0.6060
12
13
0.0298
9/9/2006
0.4710
12
13
0.0232

Date
Flow
Limit
Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ng/1)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
I Effluent Hg
(Grams)
9/10/2006 1
0.4270
12
13
0.0210
9/11/2006
0.5980
12
13
0.0294
9/12/2006
0.6130
12
13
0.0302
9/13/2006
0.5250
12
13
0.0258
9/14/2006
0.8520
12
13
0.0419
9/15/2006
0.6220
12
6.35
0.0150
9/16/2006
0.5270
12
6.35
0.0127
9/17/2006
0.4600
12
6.35
0.0111
9/18/2006
0.4920
12
6.35
0.0118
9/19/2006
0.4500
12
6.35
0.0108
9/20/2006
0.4130
12
3.64
0.0057
9/21/2006
0.4760
12
3.64
0.0066
9/22/2006
0.3990
12
3.64
0.0055
9/23/2006
0.3700
12
3.64
0.0051
9/24/2006
0.3530
12
3.64
0.0049
9/25/2006
0.4330
12
3.64
0.0060
9/26/2006
0.3410
12
5.43
0.0070
9/27/2006
0.3340
12
5.43
0.0069
9/28/2006
0.3320
12
5.43
0.0068
9/29/2006
0.3840
12
5.43
0.0079
9/30/2006
0.3190
12
5.43
0.0066
10/1/2006
0.3010
12
5.43
0.0062
10/2/2006
0.3120
12
5.43
0.0064
10/3/2006
0.3000
12
5.43
0.0062
10/4/2006
0.3600
12
5.43
0.0074
10/5/2006
0.3400
12
4.76
0.0061
10/6/2006
0.3490
12
4.76
0.0063
10/7/2006
o.3400
12
4.76
0.0061
10/8/2006
0.3500
12
4.76
0.0063
10/9/2006
0.3700
12
4.76
0.0067
10/10/2006
0.3550
12
4.76
0.0064
10/11/2006
0.3360
12
4.76
0.0061
10/12/2006
0.3620
12
4.62
0.0063
10/13/2006
0.4490
12
4.62
0.0079
10/14/2006
0.3450
12
4.62
0.0060
10/15/2006
0.3080
12
4.62
0.0054
10/16/2006
0.3500
12
4.62
0.0061
10/17/2006
0.3570
12
6.24
1 0.0084
10/18/2006
0.3690
12
6.24
0.0087
10/19/2006
0.3370
12
6.24
0.0080
10/20/2006
0.3730
12
6.24
0.0088
10/21/2006
0.3330
12
6.24
0.0079
10/22/2006
0.3240
12
6.24
0.0077
10/23/2006
0.3260
12
6.24
0.0077
10/24/2006
0.3260
12
5.99
0.0074
10/25/2006
0.3440
12
5.99
0.0078

Date
Flow
Limit
I Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg I
(ng/1)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
10/26/2006
0.3310
12
5.99
0.0075
10/27/2006
0.4760
12
5.99
0.0108
10/28/2006
0.4680
12
5.99
0.0106
10/29/2006
0.3770
12
5.99
0.0085
10/30/2006
0.3680
12
5.99
0.0083
10/31/2006
0.3400
12
3.51
0.0045
11/1/2006
0.3960
12
3.51
0.0053
11/2/2006
0.3520
12
3.51
0.0047
11 /3/2006
0.3980
12
3.51
0.0053
11/4/2006
0.3530
12
3.51
0.0047
11/5/2006
0.3250
12
3.51
0.0043
11/6/2006
0.3510
12
3.51
0.0047
11/7/2006
0.6510
12
3.51
0.0086
11 /8/2006
0.5160
12
3.1
0.0061
11 /9/2006
0.4910
12
3.1
0.0058
11/10/2006
0.4220
12
3.1
0.0050
11/11/2006
0.4200
12
3.1
0.0049
11/12/2006
0.4390
12
3.1
0.0052
11/13/2006
0.4250
12
3.1
0.0050
11/14/2006
0.4050
12
3.1
0.0048
11/15/2006
0.4110
12
3.1
0.0048
11/16/2006
1.1310
12
1.85
0.0079
11/17/2006
0.9740
12
1.85
0.0068
11/18/2006
0.8620
12
1.85
0.0060
11/19/2006
0.7680
12
1.85
0.0054
11/20/2006
0.8100
12
1.85
0.0057
11 /21 /2006
1.4460
12
10.2
0.0558
11 /22/2006
1.8250
12
10.2
0.0705
11 /23/2006
1.0980
12
10.2
0.0424
11/24/2006
0.8750
12
10.2
0.0338
11/25/2006
0.8900
12
10.2
0.0344
11/26/2006
0.8360
12
10.2
0.0323
11/27/2006
0.8950
12
10.2
0.0346
11/28/2006
0.8060
12
10.2
0.0311
11/29/2006
0.7900
12
10.2
0.0305
11/30/2006
0.7610
12
55.2
0.1590
12/1/2006
0.7190
12
551
0.1502
12/2/2006
0.6580
12
55.2
0.1375
12/3/2006
0.6250
12
55.2
0.1306
12/4/2006
0.5710
12
55.2
0.1193
12/5/2006
0.4470
12
551
0.0934
12/6/2006
0.4410
12
30
0.0501
12/7/2006
0.6000
12
30
0.0681
12/8/2006
0.5440
12
30
0.0618
12/9/2006
0.5060
12
30
0.0575
12/10/2006
0.4790
12
30
0.0544

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/1)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
12/11/2006
0.6350
12
30
0.0721
12/12/2006
0.5950
12
30
0.0676
12/13/2006
0.4740
12
30
0.0538
12/14/2006
0.5310
12
30
0.0603
12/15/2006
0.5330
12
22.2
0.0448
12/16/2006
0.4920
12
22.2
0.0413
12/17/2006
0.4750
12
22.2
0.0399
12/18/2006
0.4920
12
22.2
0.0413
12/19/2006
0.5020
12
22.2
0.0422
12/20/2006
0.4900
12
22.2
0.0412
12/21/2006
0.5370
12
6
0.0122
12/22/2006
0.8760
12
6
0.0199
12/23/2006
1.4080
12
6
0.0320
12/24/2006
0.8490
12
6
0.0193
12/25/2006
1.2630
12
6
0.0287
12/26/2006
1.0380
12
6
0.0236
12/27/2006
0.7730
12
6
0.0176
12/28/2006
0.7070
12
21
0.0562
12/29/2006
0.7300
12
21
0.0580
12/30/2006
0.6690
12
21
0.0532
12/31/2006
0.6250
12
21
0.0497
1/l/2007
0.6870
12
21
0.0546
1/2/2007
0.6680
12
21
0.0531
1/3/2007
0.6370
12
21..
0.0506
1/4/2007
0.6340
12
5.12
0.0123
1/5/2007
0.6820
12
5.12
0.0132
1/6/2007
0.6910
12
5.12
0.0134
1/7/2007
0.6270
12
5.12
0.0122
1/8/2007
0.6840
12
5.12
0.0133
1 /9/2007
0.6210
12
5.12
0.0120
1/10/2007
0.5820
12
5.12
0.0113
1/11/2007
0.5780
12
3.01
0.0066
1/12/2007
0.5920
12
3.01
0.0067
1/13/2007
0.5480
12
3.01
0.0062
1/14/2007
0.5450
12
3.01
0.0062
1/15/2007
0.5580
12
3.01
0.0064
1/16/2007
0.5610
12
3.01
0.0064
1/17/2007
0.5420
12
7.19
0.0148
1/18/2007
0.6640
12
7.19
0.0181
1/19/2007
0.6630
12
7.19
0.0180
1/20/2007
0.6170
12
7.19
0.0168
1/21/2007
0.5660
12
7.19
0.0154
1/22/2007
0.9470
12
7.19
0.0258
1 /23/2007
0.7930
12
19.4
0.0582
1/24/2007
0.7060
12
19.4
0.0518
1/25/2007
0.6440
1 12
19.4
0.0473

Date
Flow
Limit I
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ngfl)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
1/26/2007
1 0.6190
12
19.4
0.0455
1/27/2007
0.6210
12
19.4
0.0456
1/28/2007
0.5890
12
19.4
0.0433
1/29/2007
0.5460
12
19.4
0.0401
1130/2007
0.5870
12
13
0.0289
1131 /2007
0.5600
12
13
0.0276
2/1/2007
0.7410
12
13
0.0365
2/2/2007
0.9210
12
13
0.0453
2/3/2007
0.7350
12
13
0.0362
2/4/2007
0.6400
12
13
0.0315
2/5/2007
0.6210
12
13
0.0306
2/6/2007
0.6120
12
13
0.0301
2/7/2007
0.6110
12
9.89
0.0229
2/8/2007
0.5980
12
9.89
0.0224
2/9/2007
0.6310
12
9.89
0.0236
2/10/2007
0.5450
12
9.89
0.0204
2111 /2007
0.5040
12
9.89
0.0189
2/12/2007
0.5390
12
9.89
0.0202
2/13/2007
0.6420
12
9.89
0.0240
2/14/2007
0.7890
12
14.1
0.0421
2/15/2007
0.6620
12
14.1
0.0353
2/16/2007
0.6770
12
14.1
0.0361
2/17/2007
0.6080
12
14.1
0.0325
2/18/2007
0.5550
12
14.1
0.0296
2/19/2007
0.5700
12
14.1
0.0304
2/20/2007
0.5280
12
9.72
0.0194
2/21 /2007
0.5240
12
9.72
0.0193
2/22/2007
0.5360
12
9.72
0.0197
2/23/2007
0.5470
12
9.72
0.0201
2/24/2007
0.5010
12
9.72
0.0184
2/25/2007
0.5160
12
9.72
0.0190
2/26/2007
0.5310
12
9.72
0.0195
2/27/2007
0.5560
12
9.72
0.0205
2/28/2007
0.5430
12
9.72
0.0200
3/1/2007
0.6540
12
15.9
0.0394
3/2/2007
0.6320
12
15.9
0.0380
3/3/2007
0.5400
12
15.9
0.0325
3/4/2007
0.4950
12
15.9
0.0298
3/5/2007
0.4870
12
15.9
0.0293
3/6/2007
0.4870
12
15.9
0.0293
3/7/2007
0.5060
12
15.9
0.0305
3/8/2007
0.4920
12
14.3
0.0266
3/9/2007
0.4780
12
14.3
0.0259
3/10/2007
0.4800
12
14.3
0.0260
3/11/2007
0.4570
12
14.3
0.0247
3/12/2007
0.5020
12
14.3
0.0272

Date
Flow
Limit
Concentrations ng/L I
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
3/13/2007 1
0.5480
12
8.5
0.0176
3/14/2007
0.4640
12
8.5
0.0149
3/15/2007
0.4830
12
8.5
0.0155
3/16/2007
0.5500
12
8.5
0.0177
3/17/2007
0.5020
12
8.5
0.0162
3/18/2007
0.4650
12
8.5
0.0150
3/19/2007
0.4730
12
8.5
0.0152
3/20/2007
0.4640
12
8.5
0.0149
3/21/2007
0.4970
12
8.9
0.0167
3/22/2007
0.5560
12
8.9
0.0187
3/23/2007
0.5730
12
8.9
0.0193
3/24/2007
0.5540
12
8.9
0.0187
3/25/2007
0.5220
12
8.9
0.0176
3/26/2007
0.5360
12
8.9
0.0181
3/27/2007
0.5420
12
6
0.0123
3/28/2007
0.5340
12
6
0.0121
3/29/2007
0.4680
12
6
0.0106
3/30/2007
0.4680
12
6
0.0106
3/31/2007
0.4680
12
6
0.0106
4/1/2007
0.4680
12
6
0.0106
4/2/2007
0.4680
12
10
0.0177
4/3/2007
0.4680
12
10
0.0177
4/4/2007
0.4680
12
10
0.0177
4/5/2007
0.4820
12
10
0.0182
4/6/2007
0.4750
12
10
0.0180
4/7/2007
0.4590
12
10
0.0174
4/8/2007
0.4530
12
10
0.0171
4/9/2007
0.4960
12
10
0.0188
4/10/2007
0.4700
12
5.7
0.0101
4/11/2007
0.4830
12
5.7
0.0104
4/12/2007
0.4900
12
5.7
0.0106
4/13/2007
0.4800
12
5.7
0.0104
4/14/2007
0.4810
12
5.7
0.0104
4/15/2007
0.9950
12
5.7
0.0215
4/16/2007
0.6070
12
8.58
0.0197
4/17/2007
0.6090
12
8.58
0.0198
4/18/2007
0.6020
12
8.58
0.0196
4/19/2007
0.5770
12
8.58
0.0187
4/20/2007
0.5530
12
8.58
0.0180
4/21/2007
0.5240
12
8.58
0.0170
4/22/2007
0.5230
12
8.58
0.0170
4/23/2007
0.5550
12
3.87
0.0081
4/24/2007
0.5630
12
3.87
0.0082
4/25/2007
0.5660
12
3.87
0.0083
4/26/2007
0.5660
12
3.87
0.0083
4/27/2007
0.5310
12
3.87
0.0078

Date
Flow
Limit
Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
4/28/2007
0.5280
12
3.87
0.0077
4/29/2007
0.4720
12
3.87
0.0069
4/30/2007
0.4880
12
3.87
0.0071
5/1/2007
0.4550
12
6.88
0.0118
5/2/2007
0.4560
12
6.88
0.0119
5/3/2007
0.4800
12
6.88
0.0125
5/4/2007
0.4460
12
6.88
0.0116
5/5/2007
0.4490
12
6.88
0.0117
5/6/2007
0.4350
12
6.88
0.0113
5f712007
0.4250
12
34.1
0.0549
5/8/2007
0.4280
12
34.1
0.0552
5/9/2007
0.4830
12
34.1
0.0623
5/10/2007
0.4650
12
34.1
0.0600
5/11/2007
0.5420
12
34.1
1 0.0700
5/12/2007
0.5270
12
34.1
0.0680
5/13/2007
0.4630
12
34.1
0.0598
5/14/2007
0.4960
12
34.1
0.0640
5/15/2007
0.4950
12
6.2
0.0116
5/16/2007
0.4520
12
6.2
0.0106
5/17/2007
0.5120
12
6.2
0.0120
5/18/2007
0.5430
12
6.2
0.0127
5/19/2007
0.4930
12
6.2
0.0116
5/20/2007
0.4520
12
6.2
0.0106
5/21 /2007
0.4700
12
6.2
0.0110
5/22/2007
0.4780
12
6.37
0.0115
5/23/2007
0.4630
12
6.37
0.0112
5/24/2007
0.4490
12
6.37
0.0108
5/25/2007
0.5060
12
6.37
0.0122
5/26/2007
0.5150
12
6.37
0.0124
5/27/2007
0.5020
12
6.37
0.0121
5/28/2007
0.5370
12
6.37
0.0129
5/29/2007
0.4690
12
4.99
0.0089
5/30/2007
0.4810
12
4.99
0.0091
5/31/2007
0.4590
12
4.99
0.0087
6/1/2007
0.4500
12
4.99
0.0085
6/2/2007
0.5210
12
4.99
0.0098
6/3/2007
0.5630
12
4.99
0.0106
6/4/2007
0.4560
12
4.99
0.0086
6/5/2007
0.4560
12
6.43
0.0111
6/6/2007
0.4880
12
6.43
0.0119
6/7/2007
0.4500
12
6.43
0.0110
6/8/2007
0.4630
12
6.43
0.0113
6/9/2007
0.4410
12
6.43
0.0107
6/10/2007
0.4050
12
6.43
0.0099
6/11/2007
0.4920
12
6.43
0.0120
6/12/2007
0.3970
12
13.4
0.0201

Date
Flow
Limit
Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
6/13/2007 1
0.4400
12
13.4
0.0223
6/14/2007
0.4370
12
13.4
0.0222
6/15/2007
0.4290
12
13.4
0.0218
6/16/2007
0.4450
12
13.4
0.0226
6/17/2007
0.4080
12
13.4
0.0207
6/18/2007
0.4340
12
13.4
0.0220
6/19/2007
0.3860
12
13.4
0.0196
6/20/2007
0.4260
12
6.82
0.0110
6/21/2007
0.4330
12
6.82
0.0112
6/22/2007
0.4840
12
6.82
0.0125
6/23/2007
0.4340
12
6.82
0.0112
6/24/2007
0.3960
12
6.82
0.0102
6/25/2007
0.4590
12
5.04
0.0088
6/26/2007
0.4300
12
5.04
0.0082
6/27/2007
0.4250
12
5.04
0.0081
6/28/2007
0.4310
12
5.04
0.0082
6/29/2007
0.3910
12
5.04
0.0075
6/30/2007
0.4950
12
5.04
0.0094
7/1/2007
0.4320
12
5.04
0.0082
7/2/2007
0.4590
12
5.04
0.0088
7/3/2007
0.4270
12
5.04
0.0081
7/4/2007
0.3920
12
5.04
0.0075
7/5/2007
0.4440
12
3.49
0.0059
7/6/2007
0.5050
12
3.49
0.0067
7/7/2007
0.4540
12
3.49
0.0060
7/8/2007
0.4150
12
3.49
0.0055
7/9/2007
0.4630
12
3.49
0.0061
7/10/2007
0.4670
12
12.7
0.0225
7/11/2007
o.446o
12
12.7
0.0214
7/12/2007
0.4130
12
12.7
0.0199
7/13/2007
0.4740
12
12.7
0.0228
7/14/2007
0.56to
12
12.7
0.0270
7/15/2007
0.5000
12
12.7
0.0240
7/16/2007
0.5220
12
12.7
0.0251
7/17/2007
0.4570
12
12.7
0.0220
7/18/2007
0.4470
12
20.9
0.0354
7/19/2007
0.4160
12
20.9
0.0329
7/20/2007
0.4130
12
20.9
0.0327
7/21 /2007
0.4070
12
20.9
0.0322
7/22/2007
0.4010
12
20.9
0.0317
7/23/2007
0.3820
12
20.9
0.0302
7/24/2007
0.3820
12
20.9
0.0302
7/25/2007
0.4230
12
35.7
0.0572
7/26/2007
0.4340
12
35.7
0.0587
7/27/2007
0.4990
12
35.7
0.0674
7/28/2007
0.5220
12
35.7
0.0705

Date
Flow
Limit
I Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ngA)
I Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
7/29/2007
0.5100
12
35.7
0.0689
7/30/2007
0.5720
12
35.7
0.0773
7/31/2007
0.50o0
12
35.7
0.0676
8/1/2007
0.5340
12
35.7
0.0722
8/2/2007
0.4970
12
35.7
0.0672
8/3/2007
0.4660
12
35.7
0.0630
8/4/2007
0.4530
12
35.7
0.0612
8/5/2007
0.4530
12
35.7
0.0612
8/6/2007
0.4400
12
35.7
0.0595
8/7/2007
0.4620
12
35.7
0.0624
8/8/2007
0.4470
12
8.6
0.0146
8/9/2007
0.4270
12
8.6
0.0139
8/10/2007
0.4900
12
8.6
0.0160
8/11/2007
0.3450
12
8.6
0.0112
8/12/2007
0.2560
12
8.6
0.0083
8/13/2007
o.384o
12
8.6
0.0125
8/14/2007
o.4400
12
8.6
0.0143
8/15/2007
0.4720
12
8.6
0.0154
8/16/2007
0.4220
12
7.9
0.0126
8/17/2007
0.4180
12
7.9
0.0125
8/18/2007
0.4710
12
7.9
0.0141
8/19/2007
0.5050
12
7.9
0.0151
8/20/2007
0.5300
12
7.9
0.0158
8/21/2007
0.4490
12
7.9
0.0134
8/22/2007
0.5170
12
7.9
0.0155
8/23/2007
0.6310
12
16.6
0.0397
8/24/2007
0.5270
12
16.6
0.0331
8/25/2007
0.5100
12
16.6
0.0320
8/26/2007
0.4750
12
16.6
0.0298
8/27/2007
0.5180
12
3.9
0.0076
8/28/2007
0.5130
12
3.9
0.0076
8/29/2007
0.4950
12
3.9
0.0073
8/30/2007
0.4900
12
3.9
0.0072
8/31/2007
0.4320
12
3.9
0.0064
9/1/2007
0.3540
12
3.9
0.0052
9/2/2007
0.3900
12
3.9
0.0058
9/3/2007
o.386o
12
3.9
0.0057
9/4/2007
0.4010
12
3.9
0.0059
9/5/2007
0.4740
12
3.9
0.0070
9/6/2007
0.4870
12
36.9
0.0680
9/7/2007
0.5060
12
36.9
0.0707
9/8/2007
0.5100
12
36.9
0.0712
9/9/2007
0.4230
12
36.9
0.0591
9/10/2007
0.4390
12
36.9
0.0613
9/11/2007
0.4520
12
14.5
0.0248
9/12/2007
0.5110
12
14.5
0.0280

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/1)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
9/13/2007
0.4940
12
14.5
0.0271
9/14/2007
0.4750
12
14.5
0.0261
9/15/2007
0.4850
12
14.5
0.0266
9/16/2007
0.4500
12
14.5
0.0247
9/17/2007
0.4740
12
14.5
0.0260
9/18/2007
0.4600
12
14.4
0.0251
9/19/2007
0.4660
12
14.4
0.0254
9/20/2007
0.5020
12
14.4
0.0274
9/21/2007
0.5060
12
14.4
0.0276
9/22/2007
0.4470
12
14.4
0.0244
9/23/2007
0.4230
12
14.4
0.0231
9/24/2007
0.4520
12
14.4
0.0246
9/25/2007
0.4150
12
14.4
0.0226
9/26/2007
0.4710
12
6.92
0.0123
9/27/2007
0.4780
12
6.92
0.0125
9/28/2007
0.4890
12
6.92
0.0128
9/29/2007
0.4840
12
6.92
0.0127
9/30/2007
0.4370
12
6.92
0.0114
10/1/2007
0.3270
12
6.92
0.0086
10/2/2007
0.2550
12
6.92
0.0067
10/3/2007
0.9290
12
25.5
0.0897
10/4/2007
0.7780
12
25.5
0.0751
10/5/2007
0.4860
12
25.5
0.0469
10/6/2007
0.4520
12
25.5
0.0436
10/7/2007
0.4350
12
25.5
0.0420
10/8/2007
0.4700
12
25.5
0.0454
10/9/2007
0.3990
12
3.93
0.0059
10/1012007
0.4660
12
3.93
0.0069
10/11/2007
0.4620
12
3.93
0.0069
10/12/2007
0.4540
12
3.93
0.0068
10/13/2007
0.4450
12
3.93
0.0066
10114/2007
0.4090
12
3.93
0.0061
10/15/2007
0.4340
12
3.93
0.0065
10/16/2007
0.4460
12
3.37
0.0057
10/17/2007
0.4420
12
3.37
0.0056
10/18/2007
0.4480
12
3.37
0.0057
10/19/2007
0.4630
12
3.37
0.0059
10/20/2007
0.4540
12
3.37
0.0058
10/21/2007
0.4280
12
3.37
0.0055
10/22/2007
0.4480
12
3.37
0.0057
10/23/2007
0.4310
12
3.3
0.0054
10/24/2007
0.4830
12
3.3
0.0060
10/25/2007
0.4490
12
3.3
0.0056
10/26/2007
0.5260
12
3.3
0.0066
10/27/2007
0.5230
12
3.3
0.0065
10/28/2007
0.4510
12
3.3
0.0056

Date
Flow
Limit
I concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg 11
(ng/L)
Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
10/29/2007 1
0.4880
12
3.3
0.0061
10/30/2007
o.4600
12
1.79
0.0031
10/31/2007
0.4510
12
1.79
0.0031
11/1/2007
0.4860
12
1.79
0.0033
11/2/2007
0.4730
12
1.79
0.0032
11/3/2007
0.4740
12
1.79
0.0032
11/4/2007
0.4290
12
1.79
0.0029
11/5/2007
0.5060
12
1.79
0.0034
11 /6/2007
0.5290
12
6.94
0.0139
11/7/2007
0.5020
12
6.94
0.0132
11/8/2007
0.5130
12
6.94
0.0135
11/9/2007
0.4900
12
6.94
0.0129
11/10/2007
0.5040
12
6.94
0.0132
11/11/2007
0.4280
12
6.94
0.0112
11/12/2007
0.4630
12
6.94
0.0122
11/13/2007
0.5130
12
6.94
0.0135
11/14/2007
0.4700
12
22.7
0.0404
11/15/2007
0.4790
12
22.7
0.0412
11/16/2007
0.4760
12
22.7
0.0409
11/17/2007
0.4730
12
22.7
0.0406
11/18/2007
0.4610
12
22.7
0.0396
11/1912007
0.4610
12
8.08
0.0138
11/20/2007
0.3470
12
8.08
0.0106
11/21/2007
0.4510
12
8.08
0.0138
11/22/2007
0.4240
12
8.08
0.0130
11/23/2007
0.4380
12
8.08
0.0134
11/24/2007
0.4380
12
8.08
0.0134
11/25/2007
0.4280
12
8.08
0.0131
11/26/2007
0.4430
12
7.35
0.0123
11/27/2007
0.4390
12
7.35
0.0122
11/28/2007
0.4120
12
7.35
0.0115
11/29/2007
0.4230
12
7.35
0.0118
11/30/2007
0.4160
12
7.35
0.0116
12/1/2007
0.3870
12
7.35
0.0108
12/2/2007
0.3300
12
7.35
0.0092
12/3/2007
0.4740
12
1.4
0.0025
12/4/2007
0.3470
12
1.4
0.0018
12/5/2007
0.3630
12
1.4
0.0019
12/6/2007
0.3630
12
1.4
0.0019
1217/2007
0.3490
12
1.4
0.0018
12/8/2007
0.3250
12
1.4
0.0017
12/9/2007
0.3000
12
1.4
0.0016
12/10/2007
0.4000
12
1.43
0.0022
12/11/2007
0.4340
12
1.43
0.0023
12/12/2007
0.4660
12
1.43
0.0025
12/13/2007
0.4910
12
1.43
0.0027

Date
Flow
Limit
Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ngn)
Effluent Hg
(ng/L)
I Influent Hg
(Grams)
Effluent Hg
(Grams)
12/14/2007 1
0.4730
12
1.43
0.0026
12/15/2007
0.4900
12
1.43
0.0027
12/16/2007
0.4930
12
1.43
0.0027
12/17/2007
0.3050
12
3.29
0.0038
12/18/2007
0.2290
12
3.29
0.0029
12/19/2007
0.3700
12
3.29
0.0046
12/20/2007
0.4030
12
3.29
0.0050
12/21 /2007
0.4940
12
3.29
0.0062
12/22/2007
0.4650
12
3.29
0.0058
12/23/2007
0.4900
12
3.29
0.0061
12/24/2007
0.3220
12
3.29
0.0040
12/25/2007
0.1970
12
3.29
0.0025
12/26/2007
0.3200
12
3.29
0.0040
12/27/2007
0.2450
12
2.66
0.0025
12/28/2007
0.2380
12
2.66
0.0024
12/29/2007
0.2400
12
2.66
0.0024
12/30/2007
0.3480
12
2.66
0.0035
12/31/2007
0.3860
12
2.66
0.0039
1/1/2008
0.4530
12
2.66
0.0046
1/2/2008
0.5160
12
432
0.8438
1/3/2008
0.6070
12
432
0.9926
1/4/2008
0.5870
12
432
0.9599
1/5/2008
0.2670
12
432
0.4366
1/6/2008
02460
12
432
0.4023
1/7/2008
0.5420
12
3.36
0.0069
1/8/2008
0.2480
12
3.36
0.0032
1/9/2008
0.2640
12
3.36
0.0034
1/10/2008
0.2520
12
3.36
0.0032
1/11/2008
0.2610
12
3.36
0.0033
1/12/2008
0.2550
12
3.36
0.0032
1/13/2008
0.2310
12
3.36
0.0029
1/14/2008
0.2390
12
2.11
0.0019
1/15/2008
0.2340
12
2.11
0.0019
1/16/2008
0.2530
12
2-11
0.0020
1/17/2008
0.3340
12
2.11
0.0027
1/18/2008
0.3340
12
2.11
0.0027
1/19/2008
0.3340
12
2.11
0.0027
1/20/2008
0.3340
12
2.11
0.0027
1/21/2008
0.3340
12
2.11
0.0027
1/22/2008
0.2030
12
3.74
0.0029
1/23/2008
0.3000
12
3.74
0.0042
1/24/2008
0.3010
12
3.74
0.0043
1/25/2008
0.2900
12
3.74
0.0041
1/26/2008
0.2940
12
3.74
0.0042
1/27/2008
0.2680
12
3.74
0.0038
1/28/2008
0.3350
12
12.5
0.0159

Date
Flow
Limit
I Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
1/29/2008
0.4000
12
12.5
0.0189
1/30/2008
0.5110
12
12.5
0.0242
1/31/2008
0.3230
12
12.5
0.0153
211 /2008
0.3400
12
12.5
0.0161
2/2/2008
0.3140
12
12.5
0.0149
2/3/2008
0.2870
12
12.5
0.0136
2/4/2008
0.3530
12
6.24
0.0083
2/5/2008
0.3050
12
6.24
0.0072
2/6/2008
0.2980
12
6.24
0.0070
2/7/2008
0.2980
12
6.24
0.0070
2/8/2008
0.2890
12
6.24
0.0068
2/9/2008
0.2920
12
6.24
0.0069
2/10/2008
0.2640
12
6.24
0.0062
2/11/2008
0.2770
12
4.83
0.0051
2/12/2008
0.2840
12
4.83
0.0052
2/13/2008
0.6830
12
4.83
0.0107
2/14/2008
0.3890
12
4.83
0.0071
2/15/2008
o.385o
12
4.83
0.0070
2/16/2008
0.3630
12
4.83
0.0066
2/17/2008
0.3440
12
4.83
0.0063
2/18/2008
0.4820
12
12.7
0.0232
2/19/2008
0.4190
12
12.7
0.0201
2/20/2008
0.3860
12
12.7
0.0186
2/21/2008
0.4930
12
12.7
0.0237
2/22/2008
0.9590
12
12.7
0.0461
2/23/2008
0.6960
12
12.7
0.0335
2/24/2008
0.6110
12
12.7
0.0294
2/25/2008
0.6640
12
23.1
0.0581
2/26/2008
0.6540
12
23.1
0.0572
2/27/2008
0.5620
12
23.1
0.0491
2/28/2008
0.5240
12
23.1
0.0458
2/29/2008
0.4970
12
23.1
0.0435
3/1/2008
0.4820
12
23.1
0.0421
3/2/2008
0.4820
12
23.1
0.0421
3/3/2008
0.5740
12
6.34
0.0138
3/4/2008
0.6710
12
6.34
0.0161
3/5/2008
0.8200
12
6.34
0.0197
3/6/2008
0.6060
12
6.34
0.0145
3/7/2008
0.7910
12
6.34
0.0190
3/8/2008
0.7390
12
6.34
0.0177
3/9/2008
0.5460
12
6.34
0.0131
3/10/2008
0.5160
12
6.34
0.0124
3/11/2008
0.4900
12
6.34
1
0.0118
3/12/2008
0.4520
12
18.1
0.0310
3/13/2008
0.3900
12
18.1
0.0267
3/14/2008
0.44501
12
1
18.1
0.0305

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/1)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
3/15/2008 1
0.4820
12
18.1
0.0330
3/16/2008
0.5130
12
18.1
0.0351
3/17/2008
0.4590
12
5
0.0087
3/18/2008
0.4430
12
5
0.0084
3/19/2008
0.5500
12
5
0.0104
3/20/2008
0.5500
12
5
0.0104
3/21 /2008
0.5500
12
5
0.0104
3/22/2008
0.5500
12
5
0.0104
3/23/2008
0.5500
12
5
0.0104
3/24/2008
0.5500
12
1.83
0.0038
3/25/2008
0.5500
12
1.83
0.0038
3/26/2008
0.5500
12
1.83
0.0038
3/27/2008
0.5500
12
1.83
0.0038
3/28/2008
0.5500
12
1.83
0.0038
3/29/2008
0.5500
12
1.83
0.0038
3/30/2008
0.5500
12
3.82
0.0080
3/31/2008
0.5500
12
3.82
0.0080
4/1/2008
0.4920
12
3.82
0.0071
4/2/2008
0.4770
12
3.82
0.0069
4/3/2008
0.4700
12
3.82
U068
4/4/2008
0.4710
12
3.82
0.0068
4/5/2008
0.4710
12
3.82
0.0068
4/6/2008
0.4710
12
3.82
0.0068
4/7/2008
0.4710
12
3.82
0.0068
4/8/2008
0.4710
12
33.6
0.0599
4/9/2008
0.4580
12
33.6
0.0583
4/10/2008
0.4070
12
33.6
0.0518
4/11/2008
0.4240
12
33.6
0.0539
4/12/2008
0.3760
12
33.6
0.0478
4/13/2008
0.3760
12
33.6
0.0478
4/14/2008
0.3760
12
12.8
0.0182
4/15/2008
0.3390
12
12.8
0.0164
4/16/2008
0.3200
12
12.8
0.0155
4/17/2008
0.1450
12
12.8
0.0070
4/18/2008
0.2820
12
12.8
0.0137
4/19/2008
0.3050
12
12.8
0.0148
4/20/2008
0.3050
12
12.8
0.0148
4/21 /2008
0.3050
12
1.84
0.0021
4/22/2008
0.3190
12
1.84
0.0022
4/23/2008
0.3400
12
1.84
0.0024
4/24/2008
0.3680
12
1.84
0.0026
4/25/2008
0.3400
12
1.84
0.0024
4/26/2008
0.2460
12
1.84
0.0017
4/27/2008
0.2460
12
1.84
0.0017
4/28/2008
0.2460
12
1.84
0.0017
4/29/2008
1 0.3130
12
15.8
0.0187

Date
Flow
Limit
I Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ngA)
I Effluent Hg I
(ng/L)
Influent Hg
(Grams)
I Effluent Hg
(Grams)
4/30/2008 1
0.2970
12
15.8
0.0178
5/1/2008
0.2950
12
15.8
0.0176
5/2/2008
0.2570
12
15.8
0.0154
5/3/2008
0.2570
12
15.8
0.0154
5/4/2008
0.2570
12
15.8
0.0154
5/5/2008
0.3820
12
15.8
0.0228
5/6/2008
0.3280
12
218
1.46
0.2707
0.0018
5/7/2008
0.2650
12
218
1.46
0.2187
0.0015
5/8/2008
0.2210
12
218
1.46
0.1824
0.0012
5/9/2008
0.3080
12
218
1.46
0.2542
0.0017
5/10/2008
0.3080
12
218
1.46
0.2542
0.0017
5/11/2008
0.3080
12
218
1.46
0.2542
0.0017
5/12/2008
0.3530
12
218
1.46
0.2913
0.0020
5/13/2008
0.3080
12
218
2.71
0.2542
0.0032
5/14/2008
0.2670
12
218
2.71
0.2203
0.0027
5/15/2008
0.2340
12
218
2.71
0.1931
0.0024
5/16/2008
0.2770
12
218
2.71
0.2286
0.0028
5/17/2008
0.2770
12
218
2.71
0.2286
0.0028
5/18/2008
0.2770
12
218
2.71
0.2286
0.0028
5/19/2008
0.2770
12
218
5.8
0.2286
0.0061
5/20/2008
0.2120
12
218
5.8
0.1749
0.0047
5/21/2008
0.2750
12
218
5.8
0.2269
0.0060
5/22/2008
0.2770
12
218
5.8
0.2286
0.0061
5/23/2008
0.2330
12
218
5.8
0.1923
0.0051
5/24/2008
0.2300
12
218
5.8
0.1898
0.0050
5/25/2008
0.2330
12
218
5.8
0.1923
0.0051
5/26/2008
0.2330
12
218
5.8
0.1923
0.0051
5/27/2008
0.2110
12
218
6.39
0.1741
0.0051
5/28/2008
0.2930
12
218
6.39
0.2418
0.0071
5/29/2008
0.2640
12
218
6.39
0.2179
0.0064
5/30/2008
0.2410
12
218
6.39
0.1989
0.0058
5/31/2008
02410
12
218
6.39
0.1989
0.0058
6/1/2008
0.2410
12
218
6.39
0.1989
0.0058
6/2/2008
0.2520
12
44.4
4.77
0.0424
0.0046
6/3/2008
0.2530
12
44.4
4.77
0.0425
0.0046
6/4/2008
0.2580
12
44.4
4.77
0.0434
0.0047
6/5/2008
0.2460
12
44.4
4.77
0.0413
0.00"
6/6/2008
0.2030
12
44.4
4.77
0.0341
0.0037
6/7/2008
0.2030
12
44.4
4.77
0.0341
0.0037
6/8/2008
0.2030
12
44.4
4.77
0.0341
0.0037
6/9/2008
0.2250
12
59.5
25.2
0.0507
0.0215
6/10/2008
0.2060
12
59.5
25.2
0.0464
0.0197
6/11/2008
0.2060
12
59.5
25.2
0.0464
0.0197
6/12/2008
0.2100
12
59.5
25.2
0.0473
0.0200
6/13/2008
0.1960
12
59.5
25.2
0.0"1
0.0187
4/2 6/1008
0.1960
12
59.5
25.2
0.0441
0.0187

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/1)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
6/15/2008
1 0.1960
12
59.5
25.2
0.0441
0.0187
6/16/2008
0.2240
12
39.9
7.15
0.0338
0.0061
6/17/2008
0.2330
12
39.9
7.15
0.0352
0.0063
6/18/2008
0.1680
12
39.9
7.15
0.0254
0.0045
6/19/2008
0.1330
12
39.9
7.15
0.0201
0.0036
6/20/2008
0.4450
12
39.9
7.15
0.0672
0.0120
6/21/2008
0.4450
12
39.9
7.15
0.0672
0.0120
6/22/2008
0.4450
12
39.9
7.15
0.0672
0.0120
6/23/2008
0.3730
12
59.8
5.47
0.0844
0.0077
6/24/2008
0.2370
12
59.8
5.47
0.0536
0.0049
6/25/2008
0.2500
12
59.8
5.47
0.0566
0.0052
6/26/2008
0.2130
12
59.8
5.47
0.0482
0.0044
6/27/2008
0.2730
12
59.8
5.47
0.0618
0.0057
6/28/2008
02730
12
59.8
5.47
0.0618
0.0057
6/29/2008
0.2730
12
59.8
5.47
0.0618
0.0057
6/30/2008
0.2550
12
59.4
2.68
0.0573
0.0026
7/1/2008
0.2510
12
59.4
2.68
0.0564
0.0025
7/2/2008
0.2510
12
59.4
2.68
0.0564
0.0025
7/3/2008
0.2430
12
59.4
2.68
0.0546
0.0025
7/4/2008
0.2430
12
59.4
2.68
0.0546
0.0025
7/5/2008
0.2430
12
59.4
2.68
0.0546
0.0025
7/6/2008
0.2430
12
59.4
2.68
0.0546
0.0025
7/7/2008
0.2630
12
59.4
2.68
0.0591
0.0027
7/8/2008
0.2670
12
59.4
2.68
0.0600
0.0027
7/9/2008
0.2410
12
211
19.4
0.1925
0.0177
7/10/2008
0.2210
12
211
19.4
0.1765
0.0162
7/11/2008
0.2490
12
211
19.4
0.1989
0.0183
7/12/2008
0.2490
12
211
19.4
0.1989
0.0183
7/13/2008
0.2490
12
211
19.4
0.1989
0.0183
7/14/2008
0.2340
12
52.8
21.5
0.0468
0.0190
7/15/2008
0.2650
12
52.8
21.5
0.0530
0.0216
7/16/2008
0.1990
12
52.8
21.5
0.0398
0.0162
7/17/2008
0.1920
12
52.8
21.5
0.0384
0.0156
7/18/2008
0.2480
12
52.8
21.5
0.0496
0.0202
7/19/2008
0.2480
12
52.8
21.5
0.0496
0.0202
7/20/2008
0.2480
12
52.8
21.5
0.0496
0.0202
7/21/2008
0.2700
12
52.8
21.5
0.0540
0.0220
7/22/2008
0.2280
12
40.2
17.4
0.0347
0.0150
7/23/2008
0.2510
12
40.2
17.4
0.0382
0.0165
7/24/2008
0.2510
12
40.2
17.4
0.0382
0.0165
7/25/2008
0.2510
12
40.2
17.4
0.0382
0.0165
7/26/2008
0.2510
12
40.2
17.4
0.0382
0.0165
7/27/2008
1 0.2510
12
40.2
17.4
0.0382
0.0165
7/28/2008
0.2510
12
57.3
36.1
0.0544
0.0343
7/29/2008
0.2510
12
57.3
36.1
0.0544
0.0343
7/30/2008
0.2510
12
57.3
36.1
0.0544
0.0343

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
7/31/2008
0.2510
12
57.3
36.1
0.0544
0.0343
8/1/2008
0.2780
12
57.3
36.1
0.0603
0.0380
8/2/2008
0.2580
12
57.3
36.1
0.0560
0.0353
8/3/2008
0.2490
12
57.3
36.1
0.0540
0.0340
8/4/2008
0.2930
12
44.5
7.62
0.0494
0.0085
8/5/2008
0.2483
12
44.5
7.62
0.0418
0.0072
8/6/2008
0.2270
12
44.5
7.62
0.0382
0.0065
8/7/2008
0.2450
12
44.5
7.62
0.0413
0.0071
8/8/2008
0.2510
12
44.5
7.62
0.0423
0.0072
8/9/2008
0.2390
12
44.5
7.62
0.0403
0.0069
8/10/2008
0.2180
12
44.5
7.62
0.0367
0.0063
8/11/2008
0.2470
12
71
8.26
0.0664
0.0077
8/12/2008
0.2320
12
71
8.26
0.0624
0.0073
8/13/2008
0.3960
12
71
8.26
0.1064
0.0124
8/14/2008
0.2230
12
71
8.26
0.0599
0.0070
8/15/2008
0.3780
12
71
8.26
0.1016
0.0118
8/16/2008
0.3230
12
71
8.26
0.0868
0.0101
8/17/2008
0.4650
12
71
8.26
0.1250
0.0145
8/18/2008
0.4170
12
71
8.26
0.1121
0.0130
8/19/2008
0.3600
12
96.6
7.97
0.1316
1 0.0109
8/20/2008
0.3220
12
96.6
7.97
0.1177
0.0097
8/21/2008
0.3080
12
96.6
7.97
0.1126
0.0093
8/22/2008
0.3140
12
96.6
7.97
0.1148
0.0095
8/23/2008
0.2960
12
96.6
7.97
0.1082
0.0089
8/24/2008
0.2670
12
96.6
7.97
0.0976
0.0081
8/25/2008
0.2930
12
96.6
7.97
0.1071
0.0088
8/26/2008
0.3330
12
96.6
7.97
0.1218
0.0100
8/27/2008
0.2940
12
96.6
7.97
0.1075
0.0089
8/28/2008
0.2860
12
25.7
0.0278
8/29/2008
0.2520
12
25.7
0.0245
8/30/2008
0.2510
12
25.7
0.0244
8/31/2008
0.4160
12
25.7
0.0405
9/1/2008
0.4880
12
25.7
0.0475
9/2/2008
0.3700
12
25.7
0.0360
9/3/2008
0.3230
12
330
690
0.4036
0.8437
9/4/2008
0.3010
12
330
690
0.3760
0.7862
9/5/2008
0.4780
12
330
690
0.5971
1.2485
9/6/2008
2.1240
12
330
690
2.6533
5.5477
9!7/2008
0.6960
12
330
690
0.8694
1.8179
9/8/2008
0.5940
12
330
690
0.7420 1
1.5515
9/9/2008
0.5800
12
330
690
0.7245
1.5149
9/10/2008
0.8010
12
330
690
1.0006
2.0922
9/11/2008
1.0860
12
52.5
54.4
0.2158
0.2236
9,13/2608
0.7780
12
52.5
54.4
0.1546
0.1602
91/208
1.0490
12
52.5
54.4
0.2085
0.2160
9/14/2008
0.5510
12
52.5
54.4 1
0.1095
0.1135

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ngll)
Effluent Hg
I (ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
9/15/2008 1
0.3780
12
52.5
54.4
0.0751
0.0778
9/16/2008
0.4940
12
52.5
54.4
0.0982
0.1017
9/17/2008
0.6140
12
128
0.2975
9/18/2008
0.4490
12
128
0.2176
9/19/2008
0.4040
12
128
0.1958
9/20/2008
0.3860
12
128
0.1870
9/21/2008
0.3450
12
128
0.1672
9/22/2008
0.3540
12
128
0.1715
9/23/2008
0.3460
12
76
0.0995
9/24/2008
0.3340
12
76
0.0961
9/25/2008
0.4720
12
76
0.1358
9/26/2008
1.0220
12
76
0.2940
9/27/2008
0.6070
12
76
0.1746
9/28/2008
0.4790
12
76
0.1378
9/29/2008
0.4590
12
76
0.1320
9/30/2008
0.4220
12
76
0.1214
10/1/2008
0.3950
12
92.9
0.1389
10/2/2008
0.3950
12
92.9
0.1389
10/3/2008
0.3670
12
92.9
0.1291
10/4/2008
0.3240
12
92.9
0.1139
10/5/2008
0.2990
12
92.9
0.1051
10/6/2008
0.3280
12
343
206
0.4259
0.2558
1077/2008
0.3040
12
343
206
0.3947
0.2371
10/8/2008
0.2880
12
343
206
0.3739
0.2246
10/9/2008
0.3210
12
343
206
0.4168
0.2503
10/10/2008
0.2990
12
343
206
0.3882
0.2332
10/11/2008
0.3150
12
343
206
0.4090
0.2456
10/12/2008
0.2870
12
343
206
0.3726
0.2238
10/13/2008
0.3260
12
71.5
1010
0.0882
1.2464
10/14/2008
0.2850
12
71.5
1010
0.0771
1.0896
10115/2008
0.2650
12
71.5
1010
0.0717
1.0132
10/16/2008
0.3000
12
71.5
1010
0.0812
1.1470
10/17/2008
0.2660
12
71.5
1010
0.0720
1.0170
10/18/2008
0.2990
12
71.5
1010
0.0809
1.1432
10/19/2008
0.2510
12
71.5
1010
0.0679
0.9596
10/20/2008
0.3430
12
66
151
0.0857
0.1961
10/21/2008
0.2610
12
66
151
0.0652
0.1492
10/22/2008
0.2560
12
66
151
0.0640
0.1463
10123/2008
0.2620
12
66
151
0.0655
0.1498
10/24/2008
0.2970
12
66
151
0.0742
0.1698
10/25/2008
0.3140
12
66
151
0.0784
0.1795
10/26/2008
0.2610
12
66
151
0.0652
0.1492
10/27/2008
0.3350
12
66
151
0.0837
0.1915
10/28/2008
0.2560
12
79.5
6.87
0.0770
0.0067
10/29/2608
0.2710
12
79.5
6.87
0.0816
0.0070
10/30/2008
0.2590
12
79.5
6.87
0.0779
0.0067

Date
Flow
Limit
I Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
10/31/2008 1
0.2640
12
79.5
6.87
0.0794
0.0069
111H/2008
0.2500
12
79.5
6.87
0.0752
0.0065
11/2/2008
0.2560
12
79.5
6.87
0.0770
0.0067
11/3/2008
0.2770
12
79.5
6.87
0.0834
0.0072
11/4/2008
0.2870
12
79.5
6.87
0.0864
0.0075
11/5/2008
0.2830
12
79.5
6.87
0.0852
0.0074
11/6/2008
0.2700
12
48.2
35.1
0.0493
0.0359
11/7/2008
0.2720
12
48.2
35.1
0.0496
0.0361
11/8/2008
0.2490
12
48.2
35.1
0.0454
0.0331
11/9/2008
0.2760
12
48.2
35.1
0.0504
0.0367
11/10/2008
0.2440
12
48.2
35.1
0.0445
0.0324
11/11/2008
0.2420
12
48.2
35.1
0.0442
0.0322
11/12/2008
0.2450
12
48.2
35.1
0.0447
0.0326
11/13/2008
0.2940
12
46.2
0.0514
11/14/2008
0.2820
12
46.2
0.0493
11/15/2008
0.3680
12
46.2
0.0644
11/16/2008
0.2980
12
46.2
0.0521
11/17/2008
0.3110
12
46.2
0.0544
11/18/2008
0.3020
12
46.2
0.0528
11/19/2008
0.2810
12
93.2
15.2
0.0991
0.0162
11/20/2008
0.2920
12
93.2
15.2
0.1030
0.0168
11/21/2008
0.2830
12
93.2
15.2
0.0998
0.0163
11/22/2008
0.2580
12
93.2
15.2
0.0910
0.0148
11/23/2008
0.2390
12
93.2
15.2
0.0843
0.0138
11/24/2008
0.2960
12
93.2
15.2
0.1044
0.0170
11/25/2008
0.2680
12
161
424
0.1633
0.4301
11/26/2008
0.2640
12
161
424
0.1609
0.4237
11/27/2008
0.2470
12
161
424
0.1505
0.3964
11/28/2008
0.2510
12
161
424
0.1530
0.4029
11/29/2008
0.3620
12
161
424
0.2206
0.5810
11/30/2008
0.4700
12
161
424
0.2864
0.7544
12/1/2008
0.3830
12
161
424
0.2334
0.6147
12/2/2008
0.3820
12
26.9
0.0389
12/3/2008
0.3390
12
26.9
0.0345
12/4/2008
0.3240
12
26.9
0.0330
12/5/2008
0.3250
12
26.9
0.0331
12/6/2008
0.3020
12
26.9
0.0308
12/7/2008
0.2800
12
26.9
0.0285
12/8/2008
0.3170
12
26.9
0.0323
12/9/2008
0.3030
12
26.9
0.0309
12/10/2008
0.3360
12
9.14
0.0116
12/11/2008
0.4970
12
9.14
0.0172
12/12/2008
0.4700
12
9.14
0.0163
12/13/2008
0.3870
12
9.14
0.0134
12/14/2008
0.3590
12
9.14
0.0124
12/15/2008
0.3910
12
1
9.14
0.0135

Date
Flow
Limit
I Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg
(ngA)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
12/16/2008
0.4270
12
9.14
0.0148
12/17/2008
0.3670
12
92.5
0.1285
12/18/2008
0.3570
12
92.5
0.1250
12/19/2008
0.3480
12
92.5
0.1219
12/20/2008
0.3290
12
92.5
0.1152
12/21/2008
0.3250
12
92.5
0.1138
12/22/2008
0.3460
12
47.5
0.0622
12/23/2008
0.3270
12
47.5
0.0588
12/24/2008
0.3110
12
47.5
0.0559
12/25/2008
0.3050
12
47.5
0.0548
12/26/2008
0.3110
12
47.5
0.0559
12/27/2008
0.3120
12
47.5
0.0561
12/28/2008
0.2880
12
47.5
0.0518
12/29/2008
0.3270
12
47.5
0.0588
12/30/2008
0.3170
12
193
0.2316
12/31/2008
0.3190
12
193
0.2331
1/1/2009
0.2860
12
193
0.2089
1/2/2009
0.3130
12
193
0.2287
1/3/2009
0.2970
12
193
0.2170
1/4/2009
0.2890
12
193
0.2111
1/5/2009
0.3160
12
193
0.2309
1/6/2009
0.3280
12
112
357
0.1391
0.4433
1 /7/2009
0.3120
12
112
357
0.1323
0.4216
1/8/2009
0.3190
12
112
357
0.1352
0.4311
1/9/2009
0.3090
12
112
357
0.1310
0.4176
1/10/2009
0.2910
12
112
357
0.1234
0.3933
1/11/2009
0.2620
12
112
357
0.1111
0.3541
1/12/2009
0.3250
12
112
357
0.1378
0.4392
1/13/2009
0.2340
12
112
357
0.0992
0.3162
1/14/2009
0.2280
12
361
19
0.3116
0.0164
1/15/2009
0.2760
12
361
19
0.3772
0.0199
1/16/2009
0.4210
12
361
19
0.5753
0.0303
1/17/2009
0.2900
12
361
19
0.3963
0.0209
1/18/2009
0.3610
12
361
19
0.4933
0.0260
1/19/2009
0.3820
12
361
19
0.5220
0.0275
1/20/2009
0.3730
12
361
19
0.5097
0.0268
1/21/2009
0.3790
12
361
19
0.5179
0.0273
1/22/2009
0.3640
12
361
19
0.4974
0.0262
1/23/2009
0.3520
12
346
238
0.4610
0.3171
1/24/2009
0.3350
12
346
238
0.4388
0.3018
1/25/2009
0.3160
12
346
238
0.4139
0.2847
1/26/2009
0.3640
12
187
10.7
0.2577
0.0147
1/27/2009
0.3330
12
187
10.7
0.2357
0.0135
1/28/2009
0.3320
12
187
10.7
0.2350
0.0134
1/29/2009
0.4040
12
187
10.7
0.2860
0.0164
1/30/2009
0.3950
12
187
10.7
0.2796
0.0160

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/I)
I Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
1/31/2009 1
0.3710
12
187
10.7
0.2626
0.0150
2/1/2009
12
187
10.7
0.0000
2/2/2009
0.3570
12
78
10.1
0.1054
0.0136
2/3/2009
0.4060
12
2/4/2009
0.3510
12
2/5/2009
0.3130
12
2/6/2009
0.3090
12
2/7/2009
0.3490
12
2/8/2009
0.3490
12
2/9/2009
0.3490
12
2/10/2009
0.3490
12
2/11/2009
0.3490
12
59
66.9
0.0779
0.0884
2/12/2009
0.3490
12
59
66.9
0.0779
0.0884
2/13/2009
0.3490
12
59
66.9
0.0779
0.0884
2/14/2009
0.3490
12
59
66.9
0.0779
0.0884
2/15/2009
0.3490
12
59
66.9
0.0779
0.0884
2/16/2009
0.3490
12
59
66.9
0.0779
0.0884
2/17/2009
0.3490
12
2/18/2009
0.3420
12
2/19/2009
0.4160
12
2/20/2009
0.3350
12
49.8
107
0.0632
0.1357
2/21/2009
0.3240
12
49.8
107
0.0611
0.1312
2/22/2009
0.3030
12
49.8
107
0.0571
0.1227
2/23/2009
0.3200
12
49.8
107
0.0603
0.1296
2/24/2009
0.3590
12
49.8
107
0.0677
0.1454
2/25/2009
0.3180
12
49.8
107
0.0599
0.1288
2/26/2009
0.3120
12
49.8
107
0.0588
0.1264
2/27/2009
0.3140
12
136
9560
0.1617
11.3632
2/28/2009
0.5020
12
136
9560
0.2584
18.1666
3/1/2009
0.9170
12
136
9560
0.4721
33.1848
3/2/2009
0.7110
12
136
9560
0.3660
25.7300
3/3/2009
0.5700
12
136
9560
0.2934
20.6274
3/4/2009
0.5230
12
136
9560
0.2692
18.9265
3/5/2009
0.4940
12
152
274
0.2842
0.5124
3/6/2009
0.4750
12
152
274
0.2733
0.4927
3/7/2009
0.4520
12
152
274
0.2601
0.4688
3/8/2009
0.4250
12
152
274
0.2445
0.4408
3/9/2009
0.4190
12
152
274
0.2411
0.4346
3/10/2009
0.4030
12
152
274
0.2319
0.4180
3/11/2009
0.3960
12
152
274
0.2279
0.4107
3/12/2009
0.3860
12
24.6
275
0.0359
0.4018
3/13/2009
0.3800
12
24.6
275
0.0354
0.3956
3/14/2009
0.3640
12
24.6
275
0.0339
0.3789
3/15/2009
0.3470
12
24.6
275
0.0323
0.3612
3/16/2009
0.5540
12
24.6
275
0.0516
0.5767
3/17/2009
0.5870
12
24.6
275
0.0547
0.6111

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ngA)
Effluent Hg
I (ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
3/18/2009
0.4980
12
24.6
275
0.0464
0.5184
3/19/2009
0.4610
12
24.6
275
0.0429
0.4799
3/20/2009
0.4380
12
312
15.2
0.5173
0.0252
3/21/2009
0.4050
12
312
15.2
0.4783
0.0233
3/22/2009
0.3840
12
312
15.2
0.4535
0.0221
3/23/2009
0.3910
12
270
7.73
0.3996
0.0114
3/24/2009
0.3840
12
270
7.73
0.3925
0.0112
3/25/2009
0.3750
12
270
7.73
0.3833
0.0110
3/26/2009
0.3980
12
270
7.73
0.4068
0.0116
3/27/2009
0.4100
12
270
7.73
0.4190
0.0120
3/28/2009
0.4700
12
270
7.73
0.4804
0.0138
3/29/2009
0.5050
12
270
7.73
0.5161
0.0148
3/30/2009
0.4300
12
270
7.73
0.4395
0.0126
3/31/2009
0.4090
12
306
8.91
0.4738
0.0138
4/1/2009
0.4160
12
306
8.91
0.4819
0.0140
4/2/2009
0.5050
12
306
8.91
0.5850
0.0170
4/3/2009
0.5110
12
306
8.91
0.5919
0.0172
4/4/2009
0.4570
12
306
8.91
0.5294
0.0154
4/5/2009
0.4070
12
306
8.91
0.4714
0.0137
4/6/2009
0.4410
12
306
8.91
0.5108
0.0149
4/7/2009
0.4080
12
306
8.91
0.4726
0.0138
4/8/2009
0.3950
12
349
4.6
0.5218
0.0069
4/9/2009
0.4130
12
349
4.6
0.5456
0.0072
4/10/2009
0.4120
12
349
4.6
0.5443
0.0072
4/11/2009
0.4300
12
349
4.6
0.5681
0.0075
4/12/2009
o.364o
12
349
4.6
0.4809
0.0063
4/13/2009
0.3820
12
218
4.85
0.3152
0.0070
4114/2009
0.5590
12
218
4.85
0.4613
0.0103
4/15/2009
0.6330
12
218
4.85
0.5224
0.0116
4/16/2009
0.5030
12
218
4.85
0.4151
0.0092
4/17/2009
0.4500
12
218
4.85
0.3713
0.0083
4/18/2009
0.4310
12
218
4.85
0.3557
0.0079
4/19/2009
0.3950
12
218
4.85
0.3260
0.0073
4/20/2009
0.3940
12
46.2
3.84
0.0689
0.0057
4/21/2009
0.3730
12
46.2
3.84
0.0652
0.0054
4/22/2009
0.3520
12
46.2
3.84
0.0616
0.0051
4/23/2009
0.3470
12
46.2
3.84
0.0607
0.0050
4/24/2009
0.3590
12
46.2
3.84
0.0628
0.0052
4/25/2009
0.3420
12
46.2
3.84
0.0598
0.0050
4/26/2009
0.3150
12
46.2
3.84
0.0551
0.0046
4/27/2009
0.3320
12
472
13.2
0.5932
0.0166
4/28/2009
0.3260
12
472
13.2
0.5825
0.0163
4/29/2009
0.3230
12
472
13.2
0.5771
0.0161
4/30/2009
0.3200
12
472
13.2
0.5717
0.0160
5/1/2009
0.3170
12
472
13.2
0.5664
0.0158
5/2/2009
0.3060
12
472
13.2
0.5467
0.0153

Date
Flow
Limit
Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/1)
Effluent Hg
I (ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
5/3/2009 1
0.3880
12
472
13.2
0.6932
0.0194
5/4/2009
0.3170
12
80.8
91.8
0.0970
0.1102
5/5/2009
0.3110
12
80.8
91.8
0.0951
0.1081
5/6/2009
0.3040
12
80.8
91.8
0.0930
0.1056
V7/2009
0.3130
12
80.8
91.8
0.0957
0.1088
5/8/2009
0.2950
12
80.8
91.8
0.0902
0.1025
5l9/2009
0.2740
12
80.8
91.8
0.0838
0.0952
5/10/2009
0.2660
12
80.8
91.8
0.0814
0.0924
5/11/2009
0.2960
12
27.2
2.95
0.0305
0.0033
5/12/2009
0.2990
12
27.2
2.95
0.0308
0.0033
5/13/2009
0.3030
12
27.2
2.95
0.0312
0.0034
5/14/2009
0.2900
12
27.2
2.95
0.0299
0.0032
5/15/2009
0.2820
12
27.2
2.95
0.0290
0.0031
5/16/2009
0.2800
12
27.2
2.95
0.0288
0.0031
5/17/2009
0.3820
12
27.2
2.95
0.0393
0.0043
5/18/2009
0.4990
12
108
7.91
0.2040
0.0149
5/19/2009
0.3730
12
108
7.91
0.1525
0.0112
5/20/2009
o.345o
12
108
7.91
0.1410
0.0103
5/21/2009
0.3380
12
108
7.91
0.1382
0.0101
5/22/2009
0.3390
12
108
7.91
0.1386
0.0102
5/23/2009
0.3280
12
108
7.91
0.1341
0.0098
5/24/2009
0.3020
12
108
7.91
0.1235
0.0090
5/25/2009
0.3300
12
108
7.91
0.1349
0.0099
5/26/2009
0.3320
12
108
7.91
0.1357
0.0099
5/27/2009
0.3140
12
41.9
3.99
0.0498
0.0047
5/28/2009
0.3150
12
41.9
3.99
0.0500
0.0048
5/29/2009
0.4220
12
41.9
3.99
0.0669
0.0064
5/30/2009
0.5230
12
41.9
3.99
0.0830
0.0079
5/31/2009
0.4040
12
41.9
3.99
0.0641
0.0061
6/l/2009
0.3820
12
32.2
5.51
0.0466
0.0080
6/2/2009
0.3720
12
32.2
5.51
0.0463
0.0078
6/3/2009
0.3650
12
32.2
5.51
0.0445
0.0076
6/4/2009
0.3650
12
32.2
5.51
0.0445
0.0076
6/5/2009
0.3570
12
32.2
5.51
0.0435
0.0074
6/6/2009
0.3330
12
32.2
5.51
0.0406
0.0069
6/7/2009
0.3220
12
32.2
5.51
0.0392
0.0067
6/8/2009
0.4560
12
36.3
35.1
0.0627
0.0606
6/9/2009
0.5110
12
36.3
35.1
0.0702
0.0679
6/10/2009
0.7680
12
36.3
35.1
0.1055
0.1020
6/11/2009
0.5000
12
36.3
35.1
0.0687
0.0664
6/12/2009
0.5050
12
36.3
35.1
0.0694
0.0671
6/13/2009
0.4160
12
36.3
35.1
0.0572
0.0553
6/14/2009
o.3650
12
36.3
35.1
0.0502
0.0485
6/15/2009
0.3910
12
60.1
5.02
0.0890
0.0074
6/16/2009
0.3800
12
60.1
5.02
0.0865
0.0072
6/17/2009
0.3730
12
60.1
5.02
0.0849
0.0071

Date
Flow
Limit
I Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ngA)
Effluent Hg
(ng/L)
I Influent Hg
(Grams)
I Effluent Hg
(Grams)
6/18/2009
0.3570
12
60.1
5.02
0.0812
0.0068
6/19/2009
0.3590
12
60.1
5.02
0.0817
0.0068
6/20/2009
0.3390
12
60.1
5.02
0.0771
0.0064
6/21/2009
0.3180
12
60.1
5.02
0.0723
0.0060
6/22/2009
0.3210
12
60.1
5.02
0.0730
0.0061
6/23/2009
0.3030
12
35.7
4.13
0.0409
0.0047
6/24/2009
0.3160
12
35.7
4.13
0.0427
0.0049
6/25/2009
0.3030
12
35.7
4.13
0.0409
0.0047
6/26/2009
o.32oo
12
35.7
4.13
0.0432
0.0050
6/27/2009
0.3040
12
35.7
4.13
0.0411
0.0048
6/28/2009
0.2670
12
35.7
4.13
0.0361
0.0042
6/29/2009
0.2930
12
35.7
4.13
0.0396
0.0046
6/30/2009
0.2930
12
52
5.08
0.0577
0.0056
7/1/2009
0.2560
12
52
5.08
0.0504
0.0049
7/2/2009
0.2770
12
52
5.08
0.0545
0.0053
7/3/2009
0.3820
12
52
5.08
0.0752
0.0073
7/4/2009
0.2720
12
52
5.08
0.0535
0.0052
7/5/2009
0.2610
12
52
5.08
0.0514
0.0050
7/6/2009
0.2740
12
76
99
0.0788
0.1027
7/7/2009
0.2630
12
76
99
0.0757
0.0986
7/8/2009
0.2520
12
76
99
0.0725
0.0944
7/9/2009
0.2570
12
76
99
0.0739
0.0963
7/10/2009
0.2400
12
76
99
0.0690
0.0899
7/11/2009
0.2380
12
76
99
0.0685
0.0892
7/12/2009
o.224o
12
76
99
0.0644
0.0839
7/13/2009
0.2890
12
76
99
0.0831
0.1083
7/14/2009
0.2600
12
15.4
4.37
0.0152
0.0043
7/15/2009
0.2750
12
15.4
4.37
0.0160
0.0045
7/16/2009
0.2930
12
15.4
4.37
0.0171
0.0048
7/17/2009
0.2730
12
15.4
4.37
0.0159
0.0045
7/18/2009
o.2710
12
15.4
4.37
0.0158
0.0045
7/19/2009
0.2330
12
15.4
4.37
0.0136
0.0039
7/20/2009
0.2670
12
15.4
4.37
0.0156
0.0044
7/21/2009
0.2470
12
107
7.44
0.1000
0.0070
7/22/2009
0.3740
12
107
7.44
0.1515
0.0105
7/23/2009
0.4200
12
107
7.44
0.1701
0.0118
7/24/2009
o.29o0
12
107
7.44
0.1175
0.0082
7/25/2009
0.2830
12
107
7.44
0.1146
0.0080
7/26/2009
0.2470
12
107
7.44
0.1000
0.0070
7/27/2009
0.2780
12
107
7.44
0.1126
0.0078
7/28/2009
0.2780
12
23.5
7.89
0.0247
0.0083
7/29/2009
0.2780
12
23.5
7.89
0.0247
0.0083
7/30/2009
0.2780
12
23.5
7.89
0.0247
0.0083
131/2002
0.2780
12
23.5
7.89
0.0247
0.0083
8/1 /2009
0.278o
12
23.5
7.89
0.0247
0.0083
8/2/2009
0.2780
12
215
7.89
0.0247
0.0083

Date
Flow
Limit
I Concentrations ng/L
I Mass Flow g/d
MGD
Effluent Hg
(ng/L)
I Influent Hg I
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
8/3/2009 1
0.4800
12
271
8.69
0.4924
0.0158
8/4/2009
0.3690
12
271
8.69
0.3785
0.0121
8/5/2009
0.3290
12
271
8.69
0.3375
0.0108
8/6/2009
0.3350
12
271
8.69
0.3437
0.0110
8/7/2009
0.3280
12
271
8.69
0.3365
0.0108
8/8/2009
0.3090
12
271
8.69
0.3170
0.0102
8/9/2009
0.2750
12
271
8.69
0.2821
0.0090
8/10/2009
0.2930
12
38.9
6.46
0.0431
0.0072
8/11/2009
0.2850
12 1
38.9
6.46
0.0420
0.0070
8/12/2009
0.3660
12
38.9
6.46
0.0539
0.0090
8/13/2009
0.3520
12
38.9
6.46
0.0518
0.0086
8/14/2009
0.3200
12
38.9
6.46
0.0471
0.0078
8/15/2009
0.3200
12
38.9
6.46
0.0471
0.0078
8/16/2009
0.2780
12
38.9
6.46
0.0409
0.0068
8/17/2009
0.2950
12
38.9
6.46
0.0434
0.0072
8/18/2009
0.2880
12
1110
7.34
1.2101
0.0080
8/19/2009
0.2800
12
1110
7.34
1.1765
0.0078
8/20/2009
0.2770
12
1110
7.34
1.1639
0.0077
8/21 /2009
0.3470
12
1110
7.34
1.4580
0.0096
8/22f2G09
0.3100
12
1110
7.34
1.3026
0.0086
8/23/2009
0.2740
12
1110
7.34
1.1513
0.0076
8/24/2009
0.3150
12
91.1
6.4
0.1086
0.0076
8/25/2009
0.2760
12
91.1
6.4
0.0952
0.0067
8/26/2009
0.2650
12
91.1
6.4
0.0914
0.0064
8/27/2009
0.2660
12
91.1
6.4
0.0917
0.0064
8/28/2009
0.2850
12
91.1
6.4
0.0983
0.0069
8/29/2009
0.2760
12
91.1
6.4
0.0952
0.0067
8/30/2009
o.253o
12
91.1
6.4
0.0872
0.0061
8/31/2009
0.3500
12
91.1
6.4
0.1207
0.0085
9/1/2009
0.2880
12
30
9.8
0.0327
0.0107
9/2/2009
0.2710
12
30
9.8
0.0308
0.0101
9/3/2009
0.2690
12
30
9.8
0.0305
0.0100
9/4/2009
0.2600
12
30
9.8
0.0295
0.0096
9/5/2009
0.2800
12
30
9.8
0.0318
0.0104
9/6/2009
0.2330
12
30
9.8
0.0265
0.0086
9/7/2009
0.2650
12
30
9.8
0.0301
0.0098
9/8/2009
0.2380
12
30
9.8
0.0270
0.0088
9/9/2009
0.2470
12
30
9.8
0.0280
0.0092
9/10/2009
0.2820
12
103
7.63
0.1100
0.0081
SIM1/2009
0.2620
12
103
7.63
0.1022
0.0076
9/12/2009
0.2280
12
103
7.63
0.0889
0.0066
9/13/2009
0.2160
12
103
7.63
0.0842
0.0062
9/14/2009
0.2320
12
103
7.63
0.0905
0.0067
9/15/2009
0.2370
12
103
7.63
0.0924
0.0068
9/16/2009
0.2470
12
52.5
8.55
0.0491
0.0080
9/17/2009
0.2570
12
52.5
8.55
0.0511
0.0083

Date
Flow
Limit
I Concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/L)
Influent Hg
(ng/l)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
I (Grams)
9/18/2009
1 0.2520
12
52.5
8.55
0.0501
0.0082
9/19/2009
0.2400
12
52.5
8.55
0.0477
0.0078
9/20/2009
0.2150
12
52.5
8.55
0.0427
0.0070
9/21/2009
0.2270
12
52.5
8.55
0.0451
0.0073
9/22/2009
0.2820
12
246
5.75
0.2626
0.0061
9/23/2009
0.2290
12
246
5.75
0.2132
0.0050
9/24/2009
0.1360
12
246
5.75
0.1266
0.0030
9/25/2009
0.2310
12
246
5.75
0.2151
0.0050
9/26/2009
0.2080
12
246
5.75
0.1937
0.0045
9/27/2009
0.2310
12
246
5.75
0.2151
0.0050
9/28/2009
0.2370
12
246
5.75
0.2207
0.0052
9/29/2009
0.2370
12
89.5
4.74
0.0803
0.0043
9/30/2009
0.2220
12
89.5
4.74
0.0752
0.0040
10/1/2009
0.2120
12
89.5
4.74
0.0718
0.0038
10/2/2009
0.2380
12
89.5
4.74
0.0806
0.0043
10/3/2009
0.2380
12
89.5
4.74
0.0806
0.0043
10/4/2009
0.2380
12
89.5
4.74
0.0806
0.0043
10/5/2009
0.3120
12
28.1
4.89
0.0332
0.0058
10/6/2009
0.2600
12
28.1
4.89
0.0277
0.0048
10/7/2009
0.2580
12
28.1
4.89
0.0274
0.0048
10/8/2009
0.3820
12
28.1
4.89
0.0406
0.0071
10/9/2009
0.2850
12
28.1
4.89
0.0303
0.0053
10/10/2009
0.2850
12
28.1
4.89
0.0303
0.0053
10/11/2009
0.2850
12
28.1
4.89
0.0303
0.0053
10/12/2009
0.2670
12
14
2.59
0.0141
0.0026
10/13/2009
0.2670
12
14
2.59
0.0141
0.0026
10/14/2009
0.4010
12
14
2.59
0.0213
0.0039
10/15/2009
0.2810
12
14
2.59
0.0149
0.0028
10/16/2009
0.2620
12
14
2.59
0.0149
0.0028
10/17/2009
0.2820
12
14
2.59
0.0149
0.0028
10/18/2009
0.2820
12
14
2.59
0.0149
0.0028
10/19/2009
0.2640
12
14
2.59
0.0140
0.0026
10/20/2009
0.2800
12
63.2
7.66
0.0670
0.0081
10/21/2009
0.2610
12
63.2
7.66
0.0624
0.0076
10/22/2009
0.2620
12
63.2
7.66
0.0627
0.0076
10/23/2009
0.2850
12
63.2
7.66
0.0682
0.0083
10/24/2009
0.2850
12
63.2
7.66
0.0682
0.0083
10/25/2009
0.2850
12
63.2
7.66
0.0682
0.0083
10/26/2009
0.4460
12
43.8
6.85
0.0739
0.0116
10/27/2009
0.3940
12
43.8
6.85
0.0653
0.0102
10/28/2009
0.2970
12
43.8
6.85
0.0492
0.0077
10/29/2009
0.2410
12
43.8
6.85
0.0400
0.0062
10/30/2009
0.3090
12
43.8
6.85
0.0512
0.0080
10/31/2009
0.3090
12
43.8
6.85
0.0512
0.0080
11/1/2009
12
43.8
6.85
11/212009
12
43.8
6.85

Date
Flow
Limit
I concentrations ng/L
Mass Flow g/d
MGD
Effluent Hg
(ng/I
I Influent Hg
(ng/I)
Effluent Hg
(ng/L)
Influent Hg
(Grams)
Effluent Hg
(Grams)
11 /3/2009
12
57.5
5.48
11/4/2009
12
57.5
5.48
11/5/2009
12
57.5
5.48
11/6/2009
12
57.5
5.48
11l1/2009
12
57.5
5.48
11/8/2009
12
57.5
5.48
11 /9/2009
12
136
4.65
11M0/2009
12
136
4.65
11/11/2009
12
136
4.65
11/12/2009
12
136
4.65
11/13/2009
12
136
4.65
11/14/2009
12
136
4.65
11/15/2009
12
136
4.65
11/16/2009
12
101
7.19
11/17/2009
12
101
7.19
11 /18/2009
12
101
7.19
11/19/2009
12
101
7.19
11 /20/2009
12
101
7.19
11 /21 /2009
12
101
7.19
11 /22/2009
12
101
7.19
11 /23/2009
12
101
7.19
11/24/2009
12
67
7.26
11/25/2009
12
67
7.26
11/26/2009
12
67
7.26
11/27/2009
12
67
7.26
11/28/2009
12
67
7.26
11/29/2009
12
67
7.26
11/30/2009
12
67
7.26
12/1/2009
12
67
7.26
12/2/2009
12
0
12/3/2009
12
0
12/4/2009
12
0
12/5/2009
12
0
12/6/2009
12
0
12/7/2009
12
0
12/8/2009
12
0
12/9/2009
12
0
12/10/2009
12
0
12/11 /2009
12
0
12/12/2009
12
0
12/13/2009
12
0
12/14/2009
12
0
12/15/2009
12
0

Sample Analysis Standard Operating Proceedures for methods 1631 and
24S
Method 1631 low level
Meritech Inc.
MT - 3LLHg Metals Revision Date: October 8, 2009
Revision 2
December 1, 2005
1.0 Sample Log In
1.1 Samples are logged in the Meritech Sample Log -In Sheet outside of the low level
laboratory.
1.2 The analyst takes possession with signature, date and time on the chain of custody
(COC). The laboratory accession number is recorded on the COC. All low level Hg
samples are designated by "M" mmddyy+ the chronological number from log. ie
M 12250501.
1.3 The accession number is recorded on the sample bag and on an assigned polypropylene
vial reserved for unpreserved screening by Hg 245.1.
1.4 Any anomalies/observations are recorded on the comments section of the COC.
2.0 Preservation
2.1 Post log -in, samples are shaken to homogenize content. Approximately 50 mL of sample
is transferred to the labeled polypropylene vial for screening by 245.1.
2.2 A small amount of sample (-2.5 mL) is poured off the Field Blank to make room for
preservative.
2.3 Add 2.5 mL of Bromine monochloride (BrCI). The sample should turn a clear yellow. If
the sample consumes the BrCI, add 2.5 mL more for a total of 10 mL. A dilution must be
made if the sample remains incompletely digested. The dilution can then be preserved
with 2.5 mL BrCI. Samples are recapped tightly and rebagged prior to agitation to
distribute the BrCI.

2.4 Samples are placed in the dedicated holding area, chronologically until analysis.
Samples should be periodically checked for complete digestion. If loss of color is
observed, additional BrCI and/or dilution is indicated. Maximum holding time is 28 days
for a digested sample until analysis. (Note Method 1631 suggests up to 60 days).
2.5 The date and time of preservation are recorded in the log book. The date of
preservation is recorded on the chain of custody in the dedicated box.
2.6 Samples must be digested a minimum of 24 hours prior to analysis.
3.0 Standard Preparation
3.1 Two 250 mL dedicated clean volumetric flasks are rinsed 3x with DI. Fill to near mark.
Add 1.25 mL BrCI. Add 0.25 mL of primary source, 10 mg/L Hg standard for 10 ug/L
standard. Add 0.125 mL of secondary source 10 mg/L Hg standard for 5 ppb standard.
Dilute to mark and shake well. Standards are good for 1 month. Record the standard
preparation in the log book. All additions of polished DI (DDI) must be made with a
pipet and not a wash bottle.
3.2 Rinse and dry two 50 mL polypropylene tubes and record 10 ppb & 5 ppb on the vials
and lids. Also record the standard ID q from the log book and expiration date. These
will be used for working standard preparation.
3.3 Rinse thirteen 50 mL polypropylene tubes and caps 3 x with DDI. Fill to the 50 mL mark.
The tubes should be labeled: 3 @ cal blanks, 0.5, 1, 5, 10, 25, 50, 2 @ 100 (ng/L), 2 @
OPR and QCS. Transfer the tubes to the hood and add 0.25 mL BrCI.
3.4 Remove the same volume from the vials as will be introduced to maintain 50 mL total
volume. Refer to the Standard Log for aliquots.
4.0 Analysis
Setup and Calibration
4.1 Turn on the Hydra AF analyzer by a switch located on the back of the analyzer.
4.2 Turn on the Argon tanks and ensure that at least 1000 psi is available for analytical use.
Turn the valve in the laboratory to the on position, (vertical).

4.3 Change the tubing and set the clamp tension to approximately 30 o'clock. Rinse the DDI
rinse bottle and fill with fresh DDI for rinsing.
4.4 Double click on the WinHg icon on the desktop and click on the control section. Click on
the lamp, gas and pump and purge the DI until the system automatically stops. (^30
minutes). Increase the pressure on the tubing to the 12 o'clock position approximately
half way through the rinse cycle.
4.5 While the system is warming up, purge the SnClz for about 25-30 minutes. Purge the
rinse water after addition of 5 mL of purged SnClz.
4.6 Attach the purged reagents to the analyzer. (Caps and sippers should be stored in a
sealed plastic bag when not in use.)
4.7 Rinse"3x in DDI a 40 mL borosilicate vial and fill with DDI.
4.8 Click on the pump from the standby setting and click on the standards tab at the top of
the screen. Click on the S1 tab on the left of the screen and select 2 reps.
4.9 Place the DDI vial in the #1 position of the rack at the far left. Click on Stnd Auto.
Continue to analyse DI blanks until readings are less than 20K units. Refer to standard
preparation section.
4.10 Change the soda lime drier with a freshly baked one.
4.11 Rinse 3x with DDI , 9 borosilicate vials for standards. Pour out the DI vial , rinse and fill
with calibration blank. Run 5 calibration blanks, 2 reps per full vial. (Note: for
chronological selection of cal blanks highlight the appropriate replicate button). Cal
blank should read between 15K-25K units for acceptable bubbler blanks. Post Au trap
change, they may read 30K-35K.
4.12 Change the dataset monthly. In WinHg Runner 1.5 at the top of the screen; File/new
dataset/new batch. To create a new batch only (weekly); in the Sample section of
WinHg Runner 1.5, click on start new batch and use the current date and the letter a for
a file name.

4.13 Deselect S1 and deselect all reps except one. Select S2-S8. Run the standards and
monitor the curve for success prior to acceptance.
4.14 The curve may be accessed by double clicking the DB icon. Select 3 cal blanks and
accept the curve.
4.15 Post curve acceptance, go to the standard section of WinHg Runner 1.5 and analyze an
OPR, QCS and Method Blank.
4.16 Print the curve and record the %Rec, Avg. B.B., and %RSD C.F. on the analytical bench
sheet. Acceptance criteria are printed on the bench sheet.
4.17 Click on the report tab and select all the calibration samples except the 2 deleted cal
blanks and generate the report.
5.0 Sample Analysis
5.1 Rinse 3X in DDI, 12 borosilicate vials and 12 Falcon 50 mL polypropylene tubes. Invert
the vials on a clean paper towel for drying and reserve for analysis.
5.2 Select 10 samples that have been preserved a minimum of 24 hours and screened by Hg
245.1.
5.3 Record sample ID on tubes, including a spike and spike duplicate for the first sample.
Run Field Blanks with appropriate samples.
5.4 Shake the samples well to achieve homogeneity. Decant 50 mL of sample into rinsed
tubes. Promptly recap samples and tubes to prevent possible contamination.
5.5 Add 50 ul. of 10 ppb fresh standard or 100 ul of 5 ppb standard for spike and dup spike.
Just prior to analysis in the hood, reduce the samples with 125 uL of Hydroxylamine
hydrochloride. Cap and shake the samples well. If large artifacts are observed, allow
settling to prevent occlusion of the analyzer.

5.6 Decant the reduced sample into the rinsed borosilicate vials and place in the rack
starting at the top left corner for the sl position.
5.7 Click on the rack editor (rack icon) and open rackl file. Enter the sample accession
number and sample ID. Macros are located at the right box in the appropriate position
for calibration checks. Save the completed file.
5.8 In the sample section select the rack file and sample runs. (Note: it is more efficient to
prepare 2 racks as the analyzer will automatically go to the next rack if both racks are
selected.)
5.9 Click run auto and monitor spike recovery and method blank values. Spike recovery
acceptance is 71%-125% and 24% RPD. Method Blanks must be <0.5 ng/L.
5.10 Sample values must be within the calibration concentrations. Appropriate dilutions
should be 5 ng/L or greater for optimum sample reporting confidence.
5.11 Every 2 racks an OPR (5 ng/L) continuing calibration check sample must be analyzed
with acceptance recovery of+/- 23%. (Note: OPR should be reduced just prior to
analysis for optimal recovery. OPR position is accessed by macro and is positioned on
the analytical bench sheet.
5.12 Post analysis, sample contents should be disposed of in waste receptacle and vials are
discarded.
5.13 During analysis, carefully monitor levels of SnC12, rinse water and waste water to
prevent overflow and proper analytical function.
5.14 On completion of analysis, go to the report section of WinHg Database and select all
samples and cal checks. Click generate report. Number may be refreshed at this point.
Print on copy paper, not letter head. Record calculated recoveries, RPDs and dilution
values on the report sheets, and place with the analytical bench sheets for review.
5.15 Instrument is put in standby mode and covered with a plastic sheet when not in use.
5.16 Release tension on pump tubing when not in use.

6.0 Sample Data Reporting
6.1 Reports are saved in Excel by client by accession number.
6.2 Recall the last report and save as the current accession number.
6.3 Report the sampling date, preservation date and analysis date in the top right, as found
on the chain of custody.
6.4 Method blanks as applicable to sample analysis are reported. Report the method blank
and sample data to 2 places. Save the report and print on Meritech letter head.
6.5 Copies of the chain of custodies are retained on file with the batch data.
6.6 The original report and chain of custody are kept in analytical order and placed with the
analytical bench sheet and generated report for review by the laboratory manager or
designee.
6.7 Samples are retained for three months before reduction and disposal.

Method 245.1
1.0 Overview
Samples and standards are digested and analyzed by cold vapor atomic absorption spectroscopy.
Digested samples are reduced by freshly prepared Stannous Chloride (SnC12) to elemental state.
Mercury vapor passes through a closed cell positioned in the wavepath of the spectrophotometer.
2.0 Standard Preparation
2.1 Four dedicated 50 mL volumetric flasks are acid washed and DI rinsed according to
standard laboratory protocol, prior to use.
2.2 Fill each flask -2/3 full with 0.15% nitric acid (HNO3).
Primary standard: 0.5 mL of 10 mg/L certified standard #1/50 mL = 0.1 mg/L Hg
Working standard 1(Wk 1): 5.0 ml of primary standard/ 50 mL = 0.01 mg/L Hg
Used for calibration standard preparation and spike additions.
Secondary standard: 0.5 mL of 10 mg/L certified standard #2/50 mL = 0.1 mg/L Hg
Working standard 2 (Wk 2): 5.0 mL of secondary standard/ 50 mL = 0.01 mg/L Hg
Used for continuing calibration verification (CCV) and alternate source verification.
Invert and gently mix capped vol flasks 25 times.
2.3 Label thirteen 50 mL digestion vials with the appropriate Hg concentration from the
table below and place in the rack.
2.4 Fill the 3 calibration blanks with 20 mL 0.15% HNO3. Fill each of the remaining 10 vials
with ` 5 mL 0.15% HNO3, and add the aliquots of wkl listed below the the appropriately
labeled vials. Add the listed aliquot of wk2 to the CCV vials. Bring to the 20 mL mark
and reserve for digestion.
Calibration standards: (Refer to attachment I ).

Qty
Aliquot Wk 1
Concentration ug/L
3
n/a
n/a
2
0.4/20 mL 0.15% HNO3
0.2
1
1.0/20 mL 0.15% HNO3
0.5
1
2.0/20 mL 0.15% HNO3
1.0
1
4.0/20 ml 0.15% HNO3
2.0
2
10.0/20 mL 0.15% HNO3
5.0
Function
cal blank-Sl
Sl, PQL
S2
S3
S4
SS,ICV
PQL = practical quantitation limit— Method detection limit.
ICV = initial calibration verification
Qty Aliquot Wk 2 Concentration ug/L Function
3 5.0/20 mL 0.15% HNO3 2.5 CCV
2.5 Record each prepared standard in the Standard Log Book located on the
bookcase by the hood. (Refer to attachment 2.)
2.6 Enter the unique assigned assession number (i.e. Hg 20) on the Mercury Digestion Log
and the Mercury Analysis Log in the dedicated section at the top of the page. (Refer to
attachments 3 & 4).
3.0 Sample Preparation -Aqueous Samples
3.1 Turn on the hot block and set the digital read to 106 to achieve 95' C. Warm time is
approximately 30 minutes. When fully warmed to 95°C, record the date, setting,
temperature from the calibrated thermometer, the parameter needed and initials on
the temperature log located above eye level on the hood housing. (Note: Make sure
the unribbed lid is on the thermometer vial and that the vial is filled with water).
3.2 Load onto the metals cart all Hg samples from the second shelf of the refrigerator and
cross off the assession numbers from the tracking log on the front of the refrigerator.

3.3 Sort samples chronologically by assession number and enter the sample identification
and dilution factor in the computorized mercury digestion log assigning 1 in 30 samples
for duplication and spike.
3.4 Select the appropriate number of 50 mL digestion vials and record the sample assession
number and client ID on the vials with a sharpie. Load the vials into the racks to
correspond to the mercury digestion log.
3.5 Shake the samples approximately 25 times to achieve homogeneity and decant 20 mL of
sample into the corresponding labeled vial. Each rack holds 18 samples with a
maximum of 3 racks in the hot block.
3.6 Spike the labeled samples with 0.4 mL of primary standard.
3.7 Load the standard's rack and the sample racks onto the cart and transfer to the hot
block hood. Set the HNO, dispensor to 0.5 mL. Position the dispensing tube to the side
location and pump the unit to dispel air and introduce the acid into the dispensing
reservoir. Reposition the dispensing tube to downflow position. Introduce 0.5 mL
HNO3 into each of the standards and the samples. Use a uniform technique to ensure
each sample has the appropriate acid aliquot.
3.8 Introduce 1 mL sulfuric acid (H2SO,) ensuring that all air is dispelled from the dispensor
using the above technique. (Note: sulfuric will creat a slight exothermic reaction.
Samples will be warm to the touch).
3.9 Decant into a disposable cup, prepared potassium permanganate reagent (KMNO,).
Place a clean disposable tip on the (reagent only) pipetor set to 3 mL and dispense into
each standard and sample. Wait 15 minutes and observe the reaction. If the
permanganate solution is consumed, a dilution is indicated and the dilution will be
reprocessed. Flush any remaining permanganate solution with tap water down the
drain. Do not reintroduce any reagent or standard into the original source.
3.10 Decant into a disposable cup, the potassium persulfate solution (K2S208). Set the
pipetor to 1.6 mL and with a clean tip, introduce into each sample.
3.11 Cover all samples with the disposable lids (not ribbed), located under the hood in a
ziplock bag. Ensuring that the Hot Block is 95°C, place the racks in the hot block and set
the timer for 2 hours.

3.12 Post digestion, remove the racks from the hot block and allow to cool slightly in the
hood. Discard the lids. Decant hydroxylamine hydrochloride solution (NH20H-HCL) into
a disposable cup. Set the pipetor to 1.2 mL, use a clean tip and introduce into each
warm sample and standard. Place a vial lid on each sample post hydroxylamine
hydrochloride introduction to mark which sample is complete. Tighten lids and swirl
until clearing starts to occur.
3.13 Transfer the racks into the laboratory for analysis. Mix samples until all traces of
permanganate have cleared and the sample is uniform in consistency. Standards are
now ready for establishing a calibration curve. Reduced samples must be analyzed
during the day of preparation.
Note: Aqueous samples are generally digested at ix dilution factor, with the exception of TCLP
Extracts which are digested at 1/100x dilution factor (0.2 mL/20 mL to produce <0.020 mg/L
reporting limit).
4.0 Sample Preparaton— SolidSamples
4.1 Record the laboratory assession number and client identification with a sharpie on a 50
mL digestion vial. Place the vial on the top loader balance in the hood and weigh 1.00g
of thoroughly mixed sample. This represents a 2% solution. Fill to 25 mL mark with
0.15% HNO3. Place a stir bar into sample, cover with a loosely capped lid and spin at a
low speed for a minimum of one hour. Bring up to 50 mL with 0.15% HNO3. On all solid
samples, perform a percent solids in order to report dry mg/kg. Provide wet lab with
the sample for the %solids determination.
4.1.1 Aliquot 20 mL of 50 mL mixed sample and digest as outlined above. Dilute as
indicated by KMNO4 consumption and record any dilution on the digestion log.
4.2 For semi -solid samples or thin sludges, mix sample well and introduce 4 mL of sample
to 20 mL or 0.15% HNO3. This represents a 1/5x dilution factor. Record the dilution
factor in the mercury digestion log. Digest as outlined in the aqueous section. Perform
a % solids to be used in the final calculation for dry mg/kg.
5.0 Instrument Set-up
5.1 Instrument set up should be conducted approximately half way through the digestion
process for optimum time management. Warm up takes a minimum of 30 minutes.

5.2 Turn on the high pressure Argon cylinder located outside the laboratory adjacent to the
liquid Argon dewer.
5.3 Turn on FIMS instrument to start lamp warm up. Turn on computor.
5.4 Fill the reductant (red) and carrier (yellow) 1L nalgene bottles with approximately 800
mL DI. Introduce 30 mL of concentrate Hydrochloric Acid (HCL). Bring to mark and
shake for uniformity. (Remember to add the acid to the water.)
5.5 Weigh 11g of SnClz and introduce into red capped reductant bottle filled with 3% HCL
solution . Shake vigorously to put in solution.
5.6 Ensure that flow meter is approximately 60 Ipm. Adjust with knob.
5.7 Inspect tubing for wear. Alternate tubing sections per analysis event. If flattened or
discolored replace with new tubing. Fit into cartridges and clamp down. Monthly,
lubricate the rollers with oil.
5.8 Computor will show Enter Network Password box. Click OK.
5.9 Double click on:
FIMS Icon.
Custom designed work space.
Hg_daily.fms
5.10 Erase sample information file. (081199.sif)
5.11 In the Results data set name, click browse. Enter the date and the letter "a". (ie
072806a)
5.12 Click on HAS Control. Change pump 1 to 100.
5.12.1 Fill 50 mL graduated cylinder ^35 mL with DI.
5.12.2 Set timer to 1 minute.
5.12.3 Take the plastic stone for the red capped reductant and place in the cylinder
and fill to 50 mL mark.
5.12.4 Start timer and click on pump 1 icon at same time. When timer expires, click on
valve fill again to stop. Measure the aspirated DI. Acceptance criteria is 5
mL/min +/- 0.5.
5.12.5 Place the plastic stone in the SnClz solution.

5.12.6 Repeat the same for the yellow capped carrier. Acceptance is 8 mL +/- 0.5.
Place the stone in the carrier solution. If out of limits adjust or change tubing
and recheck until acceptance is achieved.
5.12.7 In the laboratory composition notebook, enter this data under the analysis date
and data set.
5.12.8 Close out FIAS control window.
5.13 Unscrew the top of the liquid/gas separator and remove membrane filter. Place on a
clean kimwipe and dry the filter. Dry the chamber and keep the kimwipe in place to
absorb excess moisture.
5.14 Blow argon gas through the capillary tubing attached to the screw -on top of the
separator and thoroughly dry. Reassemble the separator with the dried filter in place
with rough side up. Attach to the cell to creat a closed system. The unit is now ready
for calibration.
5.15 Fill 50 mL cylinder to mark and place the sample introduction capillary sipper into the
cylinder. Clink on analyze sample. Sample aspiration should be — 5 mL+/- 0.5. If
considerably < 5 mL, check for clogs. Loosen pump tubing tension, click on fill valve in
HAS icon and remove sample sipper. Blow canned air through hole until evacuated.
Slight differences in aspiration rate are usually attributed to pump tubing tension.
6.0 Calibration
6.1 Prior to calibration analyze an undigested 5.0 ug/L sample to ensure proper instrument
set. (5 mL of primary standard/100 mL 0.15% HNO,). The undigested sample should
have approximately .120 absorbance +/- 10%). If not, adjust tubing tension or replace
tubes, and rerun to verify absorbance. Enter the absorbance on the bench sheet. Run a
DI rinse 3 times post undigested standard analysis.
6.2 Place the sample introduction capillary sipper into the reduced thoroughly mixed
calibration blank and push the blank soft function key or click on the screen icon.
Analyze the blank until stable and no real peak is observed.
6.3 Change the sample concentration to 0.2 (#1), introduce the correct standard and
continue to run all calibration standards until complete. Remember to change the
concentration to the correct standard.
6.4 When all standards are run, click on the calibration icon. This will show the calibration
information under the curve graph. Correlation coefficient must be better than 0.995.
Usually it is at least 0.998 or better.

6.4.1 Correlation coefficient is < 0.995, click on the analysis pull down at the top of
the screen and select edit calibration. One point may be ignored to place the
calibration in control. Select update and reprint the curve. If still out of
control... repeat digestion.
6.5 Click on the analysis pull down and select calculate character mass. Enter the
absorbance value obtained for the highest standard in the left test solution box and tab.
Character mass must be 138 (100-157). Print and exit. If character mass is out of limits,
maintenance to improve sensitivity is indicated. (See supervisor).
6.5 Record the character mass and the calibration coefficient in the laboratory composition
book and enter into the Mercury Analysis Log.
7.0 Sample Analysis.
7.1 Print mercury analysis log and check to ensure all information is present and correct.
7.2 Place the sample introduction sipper in the high standard. Type in ICV and run sample.
This is the initial calibration verification (ICV). Acceptance limits are +/- 5%.. Record on
the log. If out of limits, check an alternate preparation. If still out of limits,
recalibration is indicated
7.3 Place the sample introduction sipper in the 2.5 standard. Type in CCV and run sample.
This is the continuing calibration verification (CCV) and represents an alternate source
check. Acceptance limits are +/- 10%. Record on the log. The CCV is run initially, every
10 samples and brackets all sample runs. (Note: if any CCV is out of limits, correct the
problem and rerun all samples from the last in control CCV).
7.4 Place the sample sipper in the blank. Type CCB and run the sample. This is the
continuing calibration blank (CCB). Acceptance limit is < method detection limit (0.0002
mg/Q. Record on the log. The CCB is run initially, every 10 samples and brackets all
sample runs. (Note: if any CCB is out of limits, correct the problem and rerun all
samples from the last in control CCB).
7.5 Place the sample sipper in the lowest standard 0.2 ug/L and run the sample. This is the
Practical Quantitation Limit sample (PQL). Acceptance limits are +/- 30%. Record on the
log. Record on the log. If out of limits, check an alternate preparation. If still out of
limits, ascertain the problem including blockage, flow rate, standard preparation or
calibration curve.

7.6 When all check standards are within acceptance limits. Sample analysis may be started.
All samples are analyzed by placing the sipper in the sample, typing the identification
and "run sample'.
7.7 A duplicate and spike must be run with each set of ten samples. Calculate the Relative
percent Difference (RPD). Acceptance criteria is 25% at sample values > 10 times the
PQL (0.0020 mg/L). Spike acceptance criteria is +/- 30%. If out of limits, dilute the
sample Xx and manually spike to achieve 0.0020 mg/L value. This is a check of matrix
interference. Spike value must be at least Y. of the sample value for significance.
7.7.1 RPD= [(Value, — Value 2)/ Average (valuel.21 x 1001
7.7.2 %Recovery= [(SSV-SV)/Spike) x 100]
SSV = spiked sample value
SV = sample value
7.8 Record all data with the lowest value @ <0.0002 mg/L @ 1x dilution.
7.9 When a sample shows 0.0002 mg/L, enlarge the sample value area to ascertain whether
the value in ug/L is less than 0.2. If so, record the value as < 0.0002 mg/L (PQL).
7.10 All sample values must be within the calibration range. If higher, dilute and reanalyze.
7.11 Use all dilution factors, calculate sample values and enter in the reported value column.
Include units mg/L-aqueous, mg/Kg-solid.
7.12 Use the metals sludge calculation worksheet in excel to calculate dry mg/Kg values.
Enter the %solids, 50 for 2% solutions in the sludge dilution column or any dilution as
a whole number. The dilution factor is any serial dilution made during analysis. Results
are to 3 significant figures. Print the sheet and make a copy to remain in metals file.
Include a sheet with the reported results for review. (Refer to attachment 5).
7.13 Run screen samples for 1631 on the appropriate analysis sheet and bracket by CCV and
CCB. Report on the chain of custody's outside the LL Hg laboratory. (Refer to
attachment 6).

7.14 Report the final results on the sheets provided, located in the copy room. Files are by
date and chronological. Include units, analysis date, analyst initials, and initials and
date recorded. (Refer to attachment 8).
7.15 Record the spike, duplicate data in the spreadsheets for QA/4C complilation.
7.16 File the data package chronologically in the dedicated file in the bottom drawer of the
cabinent.
8.0 Shut down
8.1 Place both intake sipper stones in the 10% HNO3 cleaning solution (10 mL HNO3/100 mL
DI) and run once. Run DI through the sample introduction sipper at least 3 times to
rinse. Remove and place in the covered beaker.
8.2 Dump the reductant and carrier solutions and rinse bottles.
8.3 Release pressure from the tubing and dump the waste receptacle.
8.4 Turn off the argon supply, the instrument and the computor.