WQ0021828_2018 Residual Annual Report_20190214

INITIAL REVIEW
Reviewer Williams, Kendall
Project Number* WQ0021828
SUBMITTAL DATED: 2/14/2019
Project Contact Information
Rease provide inforrration on the person to be contacted by MB Staff regarding electronic subnittal, confirmation of receipt, and other issues.
......................................................................................................................................................................................................................................................................................................................................................................................................
Name * Monica Dodson
Email Address*
[e-mail]
Project Information
Application Type* r
New
r
Renewal
r
Annual Report
Permit Type * r
Wastewater Irrigation
r
Other Wastewater
•
Closed -Loop Recycle
r
Single -Family Residence
Wastewater Irrigation
Is a paper copy of the application being submitted?*
r Yes r Nor N/A
Permit Number* WQ0021828
Reviewer* Troy Doby
Permittee* Monica Dodson
Phone Number*
[phone]
r Modification (Major or Minor)
• Additional Information
r Other
• High -Rate Infiltration
r Reclaimed Water
r Residuals
r Other
Facility Name * Orange Water and Sewer Authority - Mason Farm Wastewater Plant
County* Orange
Please provide comments/notes on your current submittal below.
Included is Orange Water and Semr Authority - Class A Annual Report for 2018.
Please attach all information required or requested for this submittal to be review here.
Orange Water and Sewer Authority - Class A
12.45MB
(WQ0021828) Annual Report.pdf
Application Form Engineering Rans, Specifications, Calculations, Etc.)

For nein and modification permit applications, the paper copy is required to be subrmtted to the
Division- Be advised, applications will not be considered complete until both the paper and electronic
applications. have been received_ The paper copy shall include the follmtLring=
• Application Farm
• All rulevant attachments (talcs, soils report, specs, etc_)
• 1 full-size engineering plan set
• 2 11-17" engineering plan sets
• 1 extra set of specifications (in addition to the set of specifications Provided in the
attachments)
• Fee (if required)
T:di shall ae mailed to the followins aPrl-: s:
By pc­lal ser- lce:
Divisron o= % ater Resources- Non -Discharge Branch
1617 Mail Service Center Raleigh NC 2.7699-1613
By Courier/Special Delivery:
Division of Water Resources- Non -Discharge Branch
AZ Nathaniel Thornburg- 9th Floor, Office #942WN
512 N_ Salisbury St_ Ralei NC 27604
For que€tions or problems contact Tessa Monday at 919.7073660 or Tessa_X%nday(dncdenr_gov or
Sonia Graves at 919.707.3657 or Sonia.Graves(apcdenr..
* I;W By checking this box I am acknowledging that I have read the above statement and agree
to send these documents as required to one of the address given above.
Signature
Submission Date 2/14/2019

OWASA ORANGE WATER AND SEWER AUTHORITY
A public, non-profit agency providing water, sewer andreclalmedwoter services
to the Carrboro-Chopel Hill community.
February 12, 2019
NC -DEQ
Division of Water Resources
Non -Discharge Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
SUBJECT: ANNUAL LAND APPLICATION — BIOSOLIDS REPORT 2018
NON -DISCHARGE PERMIT NO. W00021828
MASON FARM WASTEWATER TREATMENT PLANT
ORANGE WATER & SEWER AUTHORITY - CHAPEL HILL, NC
The Orange Water and Sewer Authority (OWASA) owns and operates the Mason Farm
Wastewater Treatment Plant located in Chapel Hill, North Carolina (NC). This facility serves
the Chapel Hill, Carrboro communities including the University of North Carolina at Chapel
Hill; all of which are located in southeastern Orange County. The plant discharge is regulated by
NPDES Permit NC0025241. The Class A land application program is regulated by Non -
Discharge (Permit No. W00021828) issued by the State of North Carolina Department of
Environmental Quality - Division of Water Resources.
This report documents that the biosolids generated during calendar year 2018 are in compliance
with 40 CFR Part 503 Federal Regulations, 15A NCAC 2T rules. All biosolids produced during
the 2018 calendar year were of Class A quality, therefore no Class B was land applied.
If there are any questions regarding this submittal, please contact me at your convenience.
Sincerely,
Monica Dodson
Wastewater Treatment and Biosolids Recycling Manager
Cc: file
400 Jones Ferry Road Equal Oppononiq hnployer Voice [phone]
Carrboro, NC 27510-0366 Printed on Recycled Paper www.owosa.org

ORANGE WATER & SEWER
AUTHORITY
Mason Farm Wastewater Treatment Plant
NPDES Permit # NC0025241
2018 Annual Land Application Report
Land Application Permit
Class -A Permit # WQ0021828

OWASA Mason Farm Wastewater Treatment Plant
Anaerobic Digestion Process
Summary Information Calendar Year 2018
The Mason Farm Wastewater Treatment Plant Anaerobic Digestion Process provides treatment for both
primary and waste activated sludges in a four -stage digestion process. The four anaerobic digestion tanks
provide approximately 1,800,000 gallons of digestion capacity and are operated in series. Normally the first
three anaerobic digesters are maintained in the thermophilic temperature range, in excess of 125OF and the
fourth anaerobic digester is operated in the mesophilic temperature range, less then 1150 Fahrenheit. Forthe
2018 calendar year, the average temperature and time for biosolids processed through the Class A
thermophilic process was 138.50 F and 22 hours. The digester operation -temperatures, recirculation and
mixing rates are monitored continuously; in addition to gas production. Process control testing (VA/ALK
ratios, pH and alkalinity, etc.) is checked routinely. Transfers into and out of the various digester tanks are
monitored and recorded.
The Mason Farm Wastewater Treatment Plant anaerobic digestion operating conditions have been carefully
monitored for the period of January 1, 2018 through December 31, 2018. The review confirms the following:
Average daily wastewater flow
8.044 MGD
Average daily dry tons biosol ids recycled
3.7 Dry Tons
Average volatile solids reduction thru anaerobic digestion
62%
Average anaerobic (total) digestion time
48 Days
FECAL COLIFORM
JAN -FEB
MAR -APR
MAY -JUN
JUL-AUG
SEP -OCT
NOV-DEC
Class A max
109
120
100
98
103
I 106
Class A avg
73
107
93
76
24
70
PARAMETER
JAN -FEB
MAR -APR
MAY -JUN
JUL-AUG
SEP -OCT
NOV-DEC
Percent Solids 1%)
2.32
2.51
2.30
2.61
2.40
2.50
Arsenic (As)
<2.16
<1.99
<2.17
2.06
2.7
3.5
Cadmium (Cd)
1.33
1.04
1.1
0.648
0.908
1.23
Copper(Cu)
273
266
296
254
333
419
Lead (Pb)
3.92
4.42
4.33
9.31
4.66
8.34
Mercury(Hg)
2.01
0.785
0.813
0.563
0.538
0.252
Molybdenum (Mo)
6.43
7.13
8.53
5.03
5.74
7.17
Nickel (Ni)
13.9
12.6
19.1
12.0
13.1
18.5
Selenium (Se)
2.59
3.03
4.33
2.48
2.49
3.33
Zinc (Zn)
825
757
804
663
850
966
Aluminum
51000
55800
55800
49700
52000
54000
Calcium
19900
28500
18000
18100
17700
21700
Magnesium
4630
5500
4070
4290
3690
5400
Potassium
7920
7170
6710
6270
5300
7120
Sodium
4440
5260
4030
4240
4560
4870
SAR
1.122
1.184
1.0711
1.189
1.261
1.212

ORANGE WATER AND SEWER AUTHORITY (OWASA)
MASON FARM WASTEWATER TREATMENT PLANT
SIMPLIFIED ANAEROBIC DIGESTION PROCESS FLOW SCHEMATIC
Pd nmary Sludge & Waste Activated Sludge
u
GBT=GRAVITY BELT THICKENER #1
GBT GST GBT
1�II #3
(COLO, THICKENED SLUDGE TO DIGESTION)
1S!
STAGE TEMPERATURE RANGE
ITHERMOPHILICTEMPERATUREI ANAEROBIC 13SF-140F
DIGESTER" CONTINUOUS OR BATCH FEED,
HEAT EXCHANGER 8 BATCH DISCHARGE
RECIRCULATION PUMP �Iny
V
2nd STAGE TEMPERATURE RANGE
(THERMOPHILICTEMPERATUREI � 135F -140F
ANAEROBIC BATCH FEED S DISCHARGE,
DIGESTER #3
HEAT E%CH%UiGER & HOLO BATCH - REQ'D. HOURS
RECIRCULATION PUMP
EPA S#3 TIMES TEMPERATURE
I� REQUIREMENTS MET IN THIS TANK
40 CFR Part 503.3241i.D.
3rd STAGE
(THERMOPHILICTEMPERATUREI ANAEROBIC
DIGESTERN
HEAT EXCHANGERS
RECIRCULATION PUMP,nj
V
411 STAGE
(MESOPHILIC TEMPERATURE) pNpEROBIC
HEAT E%CHANGERS DIGESTER#1
RHEATE EXCHANGER
� _
BIOSOLIDS TO IN -PLANT }
STORAGE TANKS I
TEMPERATURE RANGE
115 F -135F
BATCH FEED, NEAR
CONTINUOUS DISCHARGE
TEMPERATURE RANGE
15F
CONTINUOUS FEED, r
BATCH DISCHARGE
#1
1 42 I J
LIQUID BIOSOLIDS TO,
LAND APPLICATION or
OFFSITESTORAGE
DEWATERED BIOSOLIDS TO,
COMMERCIAL COMPOST FACILITY

TABLE OF CONTENTS
SECTION NO. TITLE
I Class A Distribution and Marketing / Surface
Disposal Certification Forms
Form DMSDF
II Annual Residual Sampling Summary Forms
Form RSSF
III Annual Pathogen and Vector Attraction
Reduction Form (503) Rules
Form PVRF503
IV Lab Sheets
Analytical Data

Section I
Class A Distribution and Marketing /
Surface Disposal Certification Forms

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Section II
Annual Residual Sampling Summary
Forms

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Section III
Annual Pathogen and Vector Attraction
Reduction Form (503) Rules

ANNUAL PATHOGEN AND VECTOR ATTRACTION REDUCTION FORM (503 Rules)
FacilityName: Orange Water & Sewer Authority WQ Permit Number: W00021828
W WTP Name: Mason Farm Wastewater Treatment Plant NPDES Number: NCO025241
Monitoring Period: From 1/2/2018 To 2/28/2018
Pathogen Reduction (40 CFR 503.32) - Please indicate level achieved and alternative performed:
Class A:
Alternative 1 e❑ Alternative 2 ❑
Alternative 3 ❑
Alterative 4 ❑ Alterative 5 ❑
Altemative 6 ❑
If applicable to alternative performed (Class A only) indicate `Process to Further Reduce Pathogens":
Compost ❑
Heat Drying [IHeat Treatment ❑
Thermophilic ❑
Beta Ra ❑
Gamma Ra ❑ Pasteurization ❑
Class B:
Alternative 1 ❑ Alternative 2 ❑
If applicable to alternative performed (Class B only) indicate `Process to Significantly Reduce Pathogens":
Lime Stabilization
❑ Air Drying❑ Coniposting
❑ JAcrobic Digestion
❑
Anaerobic Digestion ❑
If applicable to alternative performed (Class A or Class B) complete the following monitoring data:
Parameter
Allowable Level
jn Sludge
in
Pathogen Density
Number o
Excee-
dcnccs
Frequency
of Anal Frequency
y
Sample
Type
na it ca
Tech-
ni ue
Minimu
Geo. Mean
Maximu
Units
Fecal Coliform
2x10totheMPN
6th power
per gram of
total solids
CFU
1000 mpn per gram
oftotalsolid (dry
weight)
<11
52
109
MPN/
FC/G
0
Bt_
Monthly
Grab
SM
9221E
Salmonella bacteria3
(in lieu of fecal
coliform)
MPN per 4 grams
total solid (dry
I weight)
vector Attraction Reanction (411 urm nui.33) - rrease mmcaic option performea:
Alt.l (VS reduction) R1 IAR. 2 (40 -day bench) ❑ Alt. 3 (30 -day bench) ❑ AR. 4 (Spec. Oz uptake) ❑
Alt 5 (14 -Day Aerobic) ❑ JAR. 6 (Alk. Stabilization ❑ Alt 7 (Drying- Stable) ❑ JAlt. 8 (Drying - Unstable) ❑
Alt. 9 (Injection) ❑ JAR. 10 (Incorporation) ❑ INo vector attraction reduction alternatives were performed ❑
CERTIFICATION STATEMENT (please check the appropriate statement)
r❑ "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have been met."
❑ "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have not been met." (Please note if you check
this statement attach an explanation why you have not met one or both of the requirements.)
"This determination has been made under my direction and supervision in accordance with the system
designed to ensure that qualified personnel properly gather and evaluate the information used to determine
that the pathogen and vector attraction reduction requirements have been met. I am aware that there are
significant penalties for false certification including fine and imprisonment"
Monica Dodson - W WTP Manager
Preparer Name and Title (type or print) Land Applier Name and Title (if applicable)(type or print)
Signat re of Preparer* Date Signature of Land Applier (if applicable)
*Preparer is defined in 40 CFR Part 503.9(r) and 15A NCAC 2T.1 102 (26)
Date
DENR FORM PVRF 503 (122006)

ANNUAL PATHOGEN AND VECTOR ATTRACTION REDUCTION FORM (503 Rules)
FacilityName: Orange Water & Sewer Authority WQ Permit Number: W00021828
W WTP Name: Mason Farm Wastewater Treatment Plant NPDES Number: NCO025241
Monitoring Period: From 3/1/2018 To 4/30/2018
Pathogen Reduction (40 CFR 503.32) - Please indicate level achieved and alternative performed:
Class A: Alternative 1 RI Alternative 2 ❑ Alternative 3 ❑
Alternative 4 ❑ Alternative 5 ❑ Alternative 6 ❑
If applicable to alternative performed (Class A only) indicate "Process to Further Reduce Pathogens":
Compost ❑ Heat Drying L3 Heat Treatment ❑ Thermophilic L3Beta
Ray ❑ Gamma Ray ❑ Pasteurization ❑
Class B: Alternative l ❑ Alternative 2 ❑
If applicable to alternative performed (Class B only) indicate "Process to Significantly Reduce Pathogens":
Lime Stabilization ❑
Air Drying❑ Composting ❑
Aerobic Digestion ❑
Anaerobic Digestion ❑
If applicable to alternative performed (Class A or Class B) complete the following monitoring data:
Parameter
Allowable Level
in Sludge
Pathogen Density
um er o
xcee-
dences
Frequency
of Analysis
Sample
Tie
Analytical
Tech -
ni ue
Minima
Geo. Mean
Maximum
Units
Fecal Coliform
2 x 10 to the
6th power
per gram of
total solids
MPN
CFU
1000 mpn per gram
oftotalsolid (dry
weight)
89
107
120
MCN/
FC/G
0
Bt_
Monthly
Grab
SM
9221E
Salmonella bacterial
(in lieu of fecal
coliform)
3 MPN per 4 grans
total solid (dry
weight)
Vector Attraction Reduction (4U UP JUs.ss) - rlease indicate option periormea:
Alt.I (VS reduction) ❑Q Alt. 2 (40 -day bench) ❑ Alt. 3 (30 -day bench) ❑ AIC 4 (Spec. Oz uptake) ❑
AIC
'(l 4:Day Aerobic) ❑ Alt. 6 (Alk. Stabilization ❑ Alt 7 (Drying - Stable) ❑ A1C 8 (Drying- Unstable) ❑
Alt. 9 (Ijection) ❑ jAlt. 10 (Incorporation) ❑ INo vector attraction reduction alternatives were performed ❑
CERTIFICATION STATEMENT (please check the appropriate statement)
❑D "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have been met"
❑ "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have not been met." (Please note if you check
this statement attach an explanation why you have not met one or both of the requirements.)
"This determination has been made under my direction and supervision in accordance with the system
designed to ensure that qualified personnel properly gather and evaluate the information used to determine
that the pathogen and vector attraction reduction requirements have been met. I am aware that there are
significant penalties for false certification including fine and imprisonment"
Monica Dodson - W WTP Manager
Preparer Name and Title (type or print) Land Applier Name and Title (if applicable)(type or print)
_21
Sig a[ure of Preparer* Date Signature of Land Applier (if applicable)
•Preparer is defined in 40 CFR Part 503.9(r) and 15A NCAC 2T.1102(26)
Date
DENR FORM PVRF 503 (12/2006)

ANNUAL PATHOGEN AND VECTOR ATTRACTION REDUCTION FORM (503 Rules)
FacilityName: Orange Water& Sewer Authority WQ Permit Number: W00021828
WWTPName: Mason Fane Wastewater Treatment Plant NPDES Number: NCO025241
Monitoring Period: From 5/1/2018 To 6/30/2018
Pathogen Reduction (40 CFR 503.32) - Please indicate level achieved and alternative performed:
Class A: Alternative 1 2 Alternative2 137Alternative 3 ❑
Rl
Alternative 4 L3Alternative 5 ❑ Alternative 6 ❑
❑
If applicable to alternative performed (Class A only) indicate "Process to Further Reduce Pathogens":
Compost ❑ Heat Drying 11
Heat Treatment ❑ Thermophilic ❑
Beta Ray ❑ Gamma Ray ❑
Pasteurization ❑
Class B: Alternative 1 ❑
Alternative 2 ❑
If applicable to alternative performed (Class B only) indicate "Process to Significantly Reduce Pathogens":
Lime Stabilization ❑
Air Drying[] F-Coniposting ❑ lAerobic Digestion ❑
Anaerobic Digestion ❑
If applicable to alternative performed (Class A or Class B) complete the following monitoring data:
Parameter
Allowable Level
in Sludge
in
Pathogen Density
Number o
Excee-
deuces
Frequency
of Mal sis
y
Sample
Type
na yt ca
Tech -
a; ue
Minima
Geo. Mean
aximu
Units
Fecal Coliform
2x 10 to the
6th power
per gram of
total solids
MPN
CFU
1000 mpn per gram
of total solid (dry
weight)
67
92
100
MPN/
FC/G
0
Br_
Monthly
Grab
SM
9221E
Salmonella bacterial
(in lieu o"17
coliform)
3 MPN per 4grams
total solid (dry
weight)
Vector Attraction Reduction (40 CFR 503.33) - Please indicate option performed:
AILI (VS reduction)
Rl
I AIC 2 (40 -day bench)
❑
Alt 3 (30 -day bench) ❑
Alt. 4 (Spec. Oz uptake)
❑
AIL 5 (14 -Day Aerobic)
❑
'Alt. 6 (Alk. Stabilization
❑
Alt 7 (Drying -Stable) ❑
Alt. 8 (Drying- Unstable)
❑
AIL 9 (Injection)
❑
JAR. 10 (Incorporation)
INo vector attraction reduction alternatives were performed
❑
CERTIFICATION STATEMENT (please check the appropriate statement)
❑° "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have been met."
❑ "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have not been met." (Please note if you check
this statement attach an explanation why you have not met one or both of the requirements.)
"This determination has been made under my direction and supervision in accordance with the system
designed to ensure that qualified personnel properly gather and evaluate the information used to determine
that the pathogen and vector attraction reduction requirements have been met. I am aware that there are
significant penalties for false certification including fine and imprisonment."
Monica Dodson - W WTP Manager
Preparer Name and Title (type or print) Land Applier Name and Title (if applicable)(type or print)
Sig an tore of Preparers Date Signature of Land Applier (if applicable)
•Preparer is defined in 40 CFR Part 503.9(r) and 15A NCAC 2T. 1102 (26)
Date
DENR FORM PVRF 503 (12/2006)

ANNUAL PATHOGEN AND VECTOR ATTRACTION REDUCTION FORM (503 Rules)
Facility Name: Orange Water & Sewer Authority WQ Permit Number: W00021828
WWTPName: Mason Farm Wastewater Treatment Plant NPDESNumber: NCO025241
Monitoring Period: From 7/1/2018 To 8/31/2018
Pathogen Reduction (40 CFR 503.32) - Please indicate level achieved and alternative performed:
Class A: Alternative I El Alternative 2 ❑
Altemative 3 ❑
Altemative 4 ❑ Alternative 5 ❑
Altemative 6 ❑
If applicable to alternative performed (Class A only) indicate "Process to Further Reduce Pathogens":
Compost ❑ Heat Drying El Heat Treatment ❑ Thermophilic ❑
Beta Ray ❑ Gamma Ray ❑ Pasteurization ❑
Class B: Altemative 1 ❑ Alternative 2 ❑
If applicable to alternative performed (Class B only) indicate `Process to Significantly Reduce Pathogens":
Lime Stabilization ❑
Air Dr ing❑ Composting ❑ Aerobic Digestion ❑
Anaerobic Digest on ❑
If applicable to alternative performed (Class A or Class B) complete the following monitoring data:
Allowable Level
in Sludge
in Sludge
Pathogen Density
Number o
ldence-
Ex
dentes
Frequency
of Mal sis
y
SampleAnalyticalTech-
Tie
ni ue
rique
Minimu
Geo. Mean
aximu
Units
Fecal Coliform
2 x 10 to the
6th power
per of
totalsolids
MPN
CFU
1000 mpn per gram
of total solid (dry
weight)
6
61
98
MPN/
FC/G
0
Br_
Monthly
Grab
9221
9221E
Salmonella bacteria
(in lieu of fecal
coliform)
3 MPN per 4 grams
total solid (dry
weighQ
Vector Attraction Reduction (411 CPH JU3.63) - rrease maicate option pertormea:
Alt.l (VS reduction)❑ Alt. 2 (40 -day bench) ❑ Alt. 3 (30 -day bench) El Alt. 4 (Spec. Oz uptake) LlAlt. 5 (14 -Day Aerobic) ❑ JAR. 6 (Alk. Stabilization ❑ JAR 7 (Drying - Stable) ❑ JAR. 8 (Drying - Unstable) ❑
Alt. 9 (Injection) ❑ JAR. 10 (Incorporation) ❑ INo vector attraction reduction alternatives were performed ❑
CERTIFICATION STATEMENT (please check the appropriate statement)
O "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have been met."
❑ "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have not been met." (Please note if you check
this statement attach an explanation why you have not met one or both of the requirements.)
"This determination has been made under my direction and supervision in accordance with the system
designed to ensure that qualified personnel properly gather and evaluate the information used to determine
that the pathogen and vector attraction reduction requirements have been met. I am aware that there are
significant penalties for false certification including fine and imprisonment."
Monica Dodson - W WTP Manager
Preparer Name and Title (type or print) Land Applier Name and Title (if applicable)(type or print)
Signature of Preparer* Date Signature of Land Applier (if applicable)
*Preparer is defined in 40 CFR Part 503.9(r) and 15A NCAC 2T.1 102 (26)
Date
DENR FORM PVRF 503 (12/2006)

ANNUAL PATHOGEN AND VECTOR ATTRACTION REDUCTION FORM (503 Rules)
FacilityName: Orange Water & Sewer Authority WQ Permit Number: W00021828
WWTPName: Mason Farm Wastewater Treatment Plant NPDES Number: NCO025241
Monitoring Period: From 9/1/2018 To 10/31/2018
Pathogen Reduction (40 CFR 503.32) - Please indicate level achieved and alternative performed:
Class A: Alternative 1 El Alternative 2 ❑Altemative
3 ❑
Alt. 2,4 0 -day bench)
Alternative 4 ❑ Alternative 5 ❑
Altemative 6 ❑
Alt. 4 (Spec. Oi uptake)
If applicable to alternative performed (Class A only) indicate "Process to Further Reduce Pathogens":
Compost ❑ Heat Drying ❑ Heat Treatment ❑ Thermophilic ❑
Beta Ray ❑ Gamma Ra ❑ Pasteurization ❑
Class B: Alternative 1 ❑ Altemative 2 ❑
If applicable to alternative performed (Class B only) indicate "Process to Significantly Reduce Pathogens":
Lime Stabilization ❑ Air Drying❑ coniposting ❑
lAerobic Digestion ❑
Anaerobic Digest on ❑
If applicable to alternative perfurmed (Class A or Class B) complete the following monitoring data:
Parameter
Allowable Level
in
in Sludge
Pathogen Density
Number o
Excee-
dences
Frequency
of Analysis
y
Sample
Type
as yt c
Tech -
ni ue
Minimu
Geo. Mean
aximu
Units
Fecal Coliform
2 x 10 to theMPN
6th power
per gram of
total solids
CFU
1000 mpn per gram
oftotalsolid (dry
weight)
<9
15
103
MCN/
FC/G
0
Bt_
Monthly
Grab
SM
9221E
Salmonella bacterial
(in lieu offecal
coliform)
3 MPN per 4 grams
total solid (dry
weight)
Vector Attraction Reduction (40 CFR 503.33) - Please indicate option performed:
JAIL (VS reduction)
❑�
Alt. 2,4 0 -day bench)
❑
Alt. 3 (30 -day bench) ❑
Alt. 4 (Spec. Oi uptake)
❑
AI[. 5 (14 -Day Aerobic)
❑
Alt. 6 (Alk. Stabilization
❑Alt
7 (Drying -Stable) ❑
Alt. 8 (Drying- Unstable)
❑
Alt. 9 (Injection)
❑
JAIL 10 (Incorporation)
❑
lNo vector attraction reduction alternatives were performed
❑
CERTIFICATION STATEMENT (please check the appropriate statement)
0 "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have been met."
❑ "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have not been met." (Please note if you check
this statement attach an explanation why you have not met one or both of the requirements.)
"This determination has been made under my direction and supervision in accordance with the system
designed to ensure that qualified personnel properly gather and evaluate the information used to determine
that the pathogen and vector attraction reduction requirements have been met. I am aware that there are
significant penalties for false certification including fine and imprisonment."
Monica Dodson - W WTP Manager
Preparer Name and Title (type or print) Land Applier Name and Title (if applicable)(type or print)
%%� milt
Signature of Preparerr* Date Signature of Land Applier (if applicable)
•Preparer is defined in 40 CFR Part 503.9(r) and 15A NCAC 2T.1 102 (26)
Date
DENR FORM PVRF 503(12/2006)

ANNUAL PATHOGEN AND VECTOR ATTRACTION REDUCTION FORM (503 Rules)
FacilityName: Orange Water& Sewer Authority WQ Permit Number: W00021828
WWTPName: Mason Farm Wastewater Treatment Plant NPDES Number: NCO025241
Monitoring Period: From 11/1/2018 To 12/31/2018
Pathogen Reduction (40 CFR 503.32) - Please indicate level achieved and alternative performed:
Class A: Altemative 121Altematiltemative 2 ❑ Altemative 3 ❑
Alternative 4 ❑ Ave 5 ❑ Altemative 6 ❑
If applicable to alternative performed (Class A only) indicate `Process to Further Reduce Pathogens":
Compost ❑ Heat Drying ❑ Heat Treatment ❑ Thermophilic ❑
Beta Ray ❑ Gamma Ra ❑ Pasteurization ❑
Class B: Alternative I ❑ Alternative 2 ❑
If applicable to alternative performed (Class B only) indicate "Process to Significantly Reduce Pathogens":
Lime Stabilization ❑ Air Drying❑
Composting ❑ lAerobic, Digestion ❑
Anaerobic Digestion ❑
If applicable to alternative performed (Class A or Class B) complete the following monitoring data:
Parameter
Allowable Level
in Sludge
in
Pathogen Density
Number o
dancxcees
dentes
Frequency
of Analysis
y
Sample
Tie
Analyticalc-
Tech -
ni ae
Minimum
Geo. Mean
Maximum
Units
Fecal Coliform
2 x 10 to theMPN
6th power
per gram of
total solid:
CFU
1000 mpn per gram
oftotal solid (dry
weight)
8
50
106
MPN/
FC/G
0
Br_
Monthly.
Grab
SM
9221E
Salmonella bacterial
(in lieu offecal
coliform)
3 MPN per grams
total solid (dry
weight)
Vector Attraction Reduction (441 CNK bU3.33) - Please Indicate option perlormed:
Alt.I (VS reduction) ❑Q AIL 2 (40 -day bench) ❑ Alt. 3 (30 -day bench) ❑ Alt. 4 (Spec. Or uptake) ❑
Alt. 5 (14 -Day Aerobic) ❑ Alt. 6 (Alk. Stabilization ❑ Alt 7 (Drying -Stable) ❑ Alt. 8 (Drying- Unstable) ❑
Alt. 9 (Injection) ❑ JAR. 10 (Incorporation) ❑ INo vector attraction reduction alternatives were performed ❑
CERTIFICATION STATEMENT (please check the appropriate statement)
❑O "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have been met."
❑ "I certify, under penalty of law, that the pathogen requirements in 40 CFR 503.32 and the vector
attraction reduction requirement in 40 CFR 503.33 have not been met." (Please note if you check
this statement attach an explanation why you have not met one or both of the requirements.)
"This determination has been made under my direction and supervision in accordance with the system
designed to ensure that qualified personnel properly gather and evaluate the information used to determine
that the pathogen and vector attraction reduction requirements have been met. I am aware that there are
significant penalties for false certification including fine and imprisonment."
Monica Dodson - W WTP Manager
Preparer Name and Title (type or print) Land Applier Name and Title (if applicable)(type or print)
Signature ofPreparer* Date Signature of Land Applier (if applicable)
*Preparer is defined in 40 CFR Part 503.9(r) and 15A NCAC 2T.1 102 (26)
Date
DENR FORM PVRF 503 (12/2006)

Section IV
Lab Sheets

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ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
JANUARY 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FIRS +
WAS TO DIGESTION
BIOSOLIDSTO
LAND APPLICATION
%TS
%TVs
%TS %TVs
%TS %TVs
%TS
%TVS
pH
01/01/16
01/02/18
0.13
55.67
0.70 71.92
5.33 83.05
2.69
60.69
7.6
01/03/18
01/04/18
01/05/18
01/06/18
01/07/18
01/08/18 1
0.27
67.40
0.73 71.80
6.34 83.48
2.33
61.11
7.6
01/09/18
2.45
62.19
7.9
01/10/18
2.46
62.38
8.1
01/11/18
2.38
62.35
8.0
01/12/18
01/13/18
01/14/18
01/15/18
01/16/18
0.28
82.94
0.75 73.00
4.81 83.79
2.11
62.63
7.7
01/17/18
1.89
62.81
7.7
01/18/18
1.87
62.79
7.7
01/19/18
01/10/18
01/21/18
01/22118
0.45
84.48
0.78 73.32
6.66 84.39
2.03
63.58
8.1
0123/18
0124/18
0125/18
0126/18
0127/18
0128/18
01/29/18
0.13
69.85
0.90 74.19
6.08 82.47
1.71
7.4
01/30/1801/31/18AVERAGE
t63.89
0.25
72.07
0.77 72.85
5.84 83.44
2.19

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
FEBRUARY 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FIRS + i
WAS TO DIGESTION
BIOSOLIDS TO
LAND APPLICATION
%TS
%TVs
%TS %TVs
%TS %TVs
%TS
%TVS
pH
02/01/18
02/02/18
02/03118
02/04/18
02/05/18
0.55
85.82
0.79 73.90
5.86 83.19
145
63.95
7.6
02/06/18
02/07/18
02/08/18
02/09/18
02/10/18
02/11/18
02/12/18
0.34
83.66
0.86 74.01
6.12 83.71
1.24
64.31
7.6
02/13/18
02/14/18
02/15/18
02/16/18
02/17/18
02/18/18
02/19/16 1
0.98
88.80
0.82 73.99
5.46 77.23
1.77
64.36
7.7
02/20/18
02/21/18
02/22/18
02/23/18
02/24/18
02/25118
02/26/18
0.35
83.13
0.77 73.36
5.53 79.60
2.37
63.24
7.6
02/27/18
02/28/18
AVERAGE
I
85.35
0.81 73.82
5.74 80.93
1.71
63.97

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
MARCH 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GE T
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FIRS +
WAS TO DIGESTION 11
BIOSOLIDS TO
LAND APPLICATION
%TS
%TVS
%TS %TVS
-/.TS %TVS
%TS
%TVS
H
03/01/18
03/02/18
03/03/18
03/04/18
03/05/18
0.32
82.84
0.79 77.35
5.32 78.19
2.58
61.05
7.8
03/06/18
2.20
63.46
7.6
03/07/18
2.12
63.52
7.6
03/08/18 1
2.23
63.73
7.6
03/09/18
03/10/18
03/11/18
03/12/18
0.78
87.26
0.80 73.29
4.63 79.66
2.05
63.69
7.7
03/13/18
1.92
63.90
7.7
03/14/18
2.03
63.16
7.8
03/15/18
2.19
63.12
7.8
03/16/18
03/17/18
03/18/18
03/19/18
0.26
1 8040
1 0.75 73.12
6.56 80.15
2.37
63.67
8.4
03/20/18
03/21/18
03/22/18
03/23/18
03/24/18
03/25/18
03/26/18
1.18
88.12
0.74 72.49
5.52 82.05
2.04
64.07
8.0
03/27/18
03/28/18
03/29/18
03/30/18
03/31/16
AVERAGE
0.64
84.66
11 0.77 74.06 11
5.51 1 80.01 11
2.17
1 63.34

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
APRIL 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FIRS +
WAS TO DIGESTION
BIOSOLIDS TO
LAND APPLICATION
%TS
%TVs
%TS %TVS
%TS
%TVS
%TS
°.%TVS
PH
04/01/18
04/02/18
0.53
81.02
0.73 72.37
6.22
78.97
2.01
64.55
7.7
04/03/18
04/04/18
04/05/18
04/06/18
04/07/18
04/08/18
04/09/18
3.43
82.90
0.88 72.94
6.37
81.63
2.06
64.92
5.8
04/10/18
04/11/18
04/12/18
04/13/18
04/14/18
04/15/18
04/16/18
1.87
68.55
0.82 72.36
6.82
73.55
2.29
63.82
7.6
04/17/18
04/18/18
04/19/18
04120/18
04/21118
04/22/18
04123/18
0.21
76.26
0.74 71.54
5.31
78.69
2.19
64.19
7.7
04124/18
04125/18
04126/18
04127/1 8
04128/18
04/29/18
04/30/18
SE
I SE
0.78 1 71.46
5.57
1 75.26
2.17
64.37
7.6
AVERAGE
1.61
77.18
0.79 72.13
6.06
77.62
2.14
64.37

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
MAY 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GET
WASTE ACTIVATED
SLUDGE TOGBT
COMBINED FIRS
WASTO DIGESTION
BIOSOLIDS TO
LAND APPLICATION
%TS
00/aN5
%TS °°6NS
°6TS °°/aTVS
%TS
%TVS
H
05/01/18
05/02/18
05/03/18
05/04/18
05/05/18
05/06/18
05/07/18
0.78
87.63
0.63 69.79
6.33 77.76
2.30
63.74
7.8
05/08/18
2.36
64.18
8.0
05/09/18
3.43
64.07
8.0
05/10/18
1
2.36
1 64.07
7.7
05/11/18
05/12/18
05/13/18
05/14/18
0.33
80.91
0.83 70.27
5.00 76.11
2.32
63.29
7.6
05/15/18
2.42
63.70
7.8
05/16/18
2.45
63.74
7.6
05/17/18
2.44
63.73
7.7
05/18/18
05/19/18
05/20/18
05/21/18
0.37
1 78.18
0.74 69.18 1
5.19 1 74.84
3.60
60.45
7.9
05/22/18
05/23/18
05/24/18
05/25/18
05/26/18
05/27/18
05/28/18
05/29/18 1
0.25
76.87
0.77 68.64
644 79.59
2.57
63.08
6.0
05/30/18
05/31/18
AVERAGE
0.43
80.90
0.74 69.47 11
5.74 1 77.08 11
2.63
1 63.41

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
JUNE 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FIRS +
WAS TO DIGESTION
OSOLIDS TO
LAND APPLICATION
%TS
%TVs
%TS %TVs
%TS %TVs
%TS
%TVS
pH
06/01/18
06/02/18
06/03/18
06/04/18
0.18
69.75
0.52 61.12
6.95 80.36
2.65
62.09
8.0
06/05/18
06/06/18
06/07/18
06/08/18
06/09/18
06/10/18
06/11/18
1.21
82.79
0.79 67.02
6.78 79.78
2.55
62.83
7.8
06/12/18
06/13/18
06/14/18
06/15/18
06116118
06/17118
06/18/18
0.72
81.94
0,74 66.68
6.30 81.34
2.91
63.09
7.8
06/19/18
06/20/18
06/21/18
06/22/18
06/23/18
06/24/18
06/25/18
0.56
78.57
0.64 65.07
5.96 78.88
2.72
61.62
8.0
06/26/18
06/27/18
06/28/18
06/29/18
06/30/18
AVERAGE
0.67
78.26
-7-67--j--r497
6.50 80.09
2.71
62.41

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
JULY 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FRS +
WAS TO DIGESTION
BIOSOLIDS TO
LAND APPLICATION
%TS
%TVs
%TS %TVs
-/.TS %TVs
%TS
%TVS
H
07/01/18
07/02/18
0.40
73.22
0.66 65.00
6.96 78.84
2.56
61.63
8.0
07/03/18
07/04/18
07/05/18
07/06/18
07/07/18
07/08/18
07/09/18
0.16
64.08
0.60 64.60
6.75 79.47
2.52
61.92
8.1
07/10/18
1
3.27
1 63.29
7.7
07/11/18
4.29
64.28
8.0
07/12/18
3.09
62.14
7.9
07/13/18
07/14/18
07/15/18
07/16/18
1.27
84.69
0.71 65.49
NS NS
2.44
61.90
8.0
07/17/18
2.35
61.56
8.0
07/18/18
2.53
61.34
7.9
07/19/18 1
2.39
61.00
8.2
07/20/18
07/21/18
07/22/18
07/23/18
0.57
77.81
0.66 65.09
6.61 79.55
2.31
61.74
8.0
07/24/18
07/25/18
07/26/18
07/27/18
07/28/18
07/29/18
07/30/18
0.31
72.83
0.73 64.99
6.69 76.25
2.31
61.44
7.8
07/31/18
AVERAGE
0.54
74.53
0.67 65.03 1
6.75 1 8.53
2.73
1 62.02

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
AUGUST 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FRS+
WAS TO DIGESTION
BIOSOLIDS TO
LAND APPLICATION
%TS
%TVs
%TS %TVs
%TS %TVs
%TS
%TVS
pH
08/01/18
08/02/18
08/03/18
08/04/18
08/05/18
08/06/18
0.43
76.78
0.63 64.19
5.63 67.35
2.33
61.25
7.6
08/07/18
08/08/18
08/09/18
08/10/18
08/11/18
08/12/18
08/13/18
0.74
78.44
0.71 64.21
5.42 72.10
2.20
61.11
7.8
08/14/18
08/15/18
08/16/18
08/17/18
08/18/18
08/19/18
08/20/18
0.83
68.95
0.67 65.35
6.68 1 70.68
2.28
1 61.18
8.0
08121/18
08/22/18
0823/18
0824/18
0825/18
0826/18
0827/18
0.42
81.41
0.69 65.40
5.42 71.96
2.37
60.90
7.9
0828/18
08129/18
08/30/18
08/31/18
AVERAGE
0.61
76.40 11
0.66 64.79
5.79 1 70.52 11
2.30
1 61.11

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
SEPTEMBER 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GET
WASTE ACTIVATED
SLUDGE TO GET
COMBINED FRS-
WAS TO DIGESTION
BIOSOLIDS TO
LAND APPLICATION
%TS
%TVs
%TS %TVs
%TS %TVs
%TS
%TVS
pH
09/01/18
09/02/18
09/03/18
09/04/18
0.15
62.46
0.80 66.63
5.60 71.99
2.29
60.53
7.8
09/05/18
09/06/18
09/07/18
09/08/18
09/09/18
09/10/18
0.43
79.60
0.78 67.12
5.59 75.30
2.33
60.39
7.7
09/11/18
09/12/18
09/13/18
09/14/18
09/15/18
09/16/18
09/17/18
09/18/18
0.58
1 73.47 1
0.78 65.87
5.86 57.80
2.23
59.89
7.8
09/19/18
2.14
1 60.05
7.6
09/20/18
2.10
60.13
7.7
09/21/18
09/22/18
09/23/18
09/24/18
0.35
67.15
0.87 66.25
3.83 73.08
2.00
60.49
7.5
09/25/18
2.00
60.15
7.6
09/26/18
2.08
60.24
7.6
09/27/18
2.20
60.05
7.5
09/28/18
09/29/18
A09/30/18
VERAGE
0.38
70.67 11
0.81 1 66.47 11
5.22 i 69.54
2.15
60.21

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND pH WORKSHEET
OCTOBER 2018
SAMPLE
DATE
FERMENTED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINED FIRS +
WAS TO DIGESTION
BIOSOLIDS TO
LAND APPLICATION
%TS
%TVs
%TS %TVs
%TS %TVs
%TS
%TVS
pH
10/01/18
0.54
84.30
0.83 67.18
5.49 74.43
2.18
60.57
7.6
10/02/18
10/03/18
10/04/18
10/05/18
10/06/18
10/07/18
10/08/18
0.67
76,49
0.84 67.91
4.26 72.64
2.20
60.45
7.6
10/09/18
10/10/18
10/11/18
10/12/18
10/13/18
10/14/18
10/15/18
0.17
65.00
0.60 6823
5.79 74.50
2.17
60.29
7.8
10/16/18
10/17/18
10/18/18
10/19/18
10/20/18
10/21/18
10/22/18
0.23
72.91
0.67 68.56
4.65 78.35
2.13
60.44
7.6
10/23/18
10/24/18
10/25/18
10/26/18
10/27/18
10/28/18
10/29/18
0.57
82.03
0.80 69.81
5.37 77.83
2.17
60.38
7.6
10/30/18
10/31/18
AVERAGE
0.44
76.15
11 0.75 1 68.34 11
5.11 1 75.55 11
2.17
1 60.43

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND PH WORKSHEET
NOVEMBER 2018
SAMPLE
DATE
FERMENT ED RAW
SLUDGE TO GBT
WASTE ACTIVATED
SLUDGE TO GBT
COMBINEDFRS+
WAS TO DIGESTION
BIOSOUDS TO
LAND APPLICATION
%Ts
%TVs
%TS %TVs
%TS %TVs
%TS
%TVS
PH
11/01/18
11/02/18
11/03/18
11/04/18
11/05/18
046
80.77
0.77 69.77
6.92 83.39
248
60.39
7.9
11/06/18
2.42
60.71
7.9
11/07/16
2.35
60.74
8.0
11/08/18
2.18
60.89
7.9
11/09/18
11/10/18
11/11/18
11/12/18
0.61
80.29
0.78 70.06
4.90 79.76
2.21
60.57
7.9
11/13/18
244
61.04
7.8
11/14/18
242
60.94
7.9
11/15/18
2.26
60.37
8.1
11/16/18
11/17/18
11/18/18
11/19/18
1.16
89.24
0.84 70.34
642 79.59
2.27
61.48
7.9
11/20/18
11/21/18
11/22/18
11/23/18
11/24/18
11/25/18
11/26/18
0.94
87.98
0.77 69.68
4.64 79.28
2.14
61.04
7.8
11/27/18
11/28/18
11/29/18
11/30/18
AVERAGE
0.79
84.57
0.79 69.96
5.72 80.51
2.32
60.82

ORANGE WATER AND SEWER AUTHORITY
MASON FARM WASTEWATER TREATMENT PLANT
TOTAL SOLIDS AND PH WORKSHEET
DECEMBER 2018
SAMPLE
DATE
FERMENTEDRAW
SLUDGE TO GET
WASTEACTIVATED
SLUDGE TO GET
COMBINED FIRS +
WAS TO DIGESTION
BIOSOLIDS TO
LANDAPPLICATION
%TS
%TVs
%TS %TVs
%TS %NS I
%TS
%TVS I
PH
12/01/18
12/02/18
12/03/18
0.78
84.50
0.78 70.71
4.53 77.37
2.41
61.31
7.8-
12104/18
12/05/18
12/06/18
12/07/18
12/08/18
12/09/18
12/10/18
0.28
82.97
0.85 71.75
6.26 81.45
2.58
60.31
8.0
12/11/18
12/12/18
12/13/18
12/14/18
12/15/18
12/16/18
12/17/18
0.24
75.59
0.86 71.92
4.99 76.02
2.23
61.08
7.7
12/18/18
12/19/18
12/20/18
12/21/18
1222/18
1223/18
1224/18
1225/18
1226/18
1227/18
0.15
75.18
0.85 71.23
5.07 77.76
2.24
61.51
7.6
1228/18
1229/18
12/30/18
12/31/18
0.28
76.64
0.80 71.39
4.89 77.53
2.19
6153
7.8
AVERAGE
0.35
78.98
0.83 71,407
6.15 78.03
2.33
61.17

OWASA
Digested Sludge Analysis for Fecal Coliform
Reported MPN fecal coliform/g = 52 (geometric mean for Class B)
MAX 109 (single value, Class A)
MIN <11
Average MPN fecal coliform/g= 73
Date
MPN Index / 100mis
TS (%)
Largest Volume Used mI.
MPN FC/
01/08/18
23
2.33
1
99
01/09/18
23
2.45
1
94
01/10/18
23
2.46
1
93
01/11/18
23
2.38
1
97
01/16/18
23
2.11
1
109
01/17/18
<2
1.89
1
<I1
01/18/18
<2
1.87
1
1
<11
Using EPA 503 tales for Class A Sludge, Appendix F:
-follow SM 9221 E (AI Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10' (MPN Index/100 mis))/(largest volume•%dry solids)
where: MPN Index/100mis is read from MPN table,
-Each reported value must be <I000 MPN per gram tocol solids (dry wt basis)
Using EPA 503 rules for Class B Sludge, Appendix F:
-follow SM 9221 E (AI Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10. (MPN Index/]00 mis))/(largest volume'%dry solids)
where: MPN Index/100mis is read from MPN table,
-Reported value is geometric mean of all samples
-Reported value must be <2million MPN per gram total solids (dry wt basis)

OWASA
Digested Sludge Analysis for Fecal Coliform
Reported MPN fecal coliformlg = 107 (geometric mean for Class B)
MAX 120 (single value, Class A)
MIN 89
Average MPN fecal coliform/g= 107
Date
MPN Index / 100mis
TS (%
Largest Volume Used (mL)
MPN FC/
03/05/18
23
2.58
1
89
03/06/18
23
2.2
1
105
03/07/18
23
2.12
1
108
03/08/18
23
2.23
1
103
03/12/18
23
2.05
1
112
03/13/18
23
1.92
1
120
03/14/18
23
2.03
1
113
03/15/18
23
2.19
1
105
Using EPA 503 rules for Class A Sludge, Appendix F:
-follow SM 9221 E (AI Media) -2006, SM 9221 C Table 922 HV -2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10 . (MPN Index/100 mis)y(largest volume•% dry solids)
where: MPN Index/] 00mis is read from MPN table,
-Each reported value must be <1000 MPN per gram total solids (dry wt basis)
Using EPA 503 rules for Class B Sludge, Appendix F:
-follow SM 9221 E (AI Media) -2006, SM 9221 C Table 922 HV -2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10' (MPN Index/100 mis)y(largest volume'% dry solids)
where: MPN Index/100mis is read from MPN table,
-Reported value is geometric mean of all samples
-Reported value most be <2 million MPN per gram total solids (dry wt basis)

OWASA
Digested Sludge Analysis for Fecal Coliform
Reported MPN fecal coliform/g = 92 (geometric mean for Class B)
MAX 100 (single value, Class A)
MIN 67
Average MPN fecal coliforml = 93
Date
MPN Index/ 100mis
TS (%)
Largest Volume Used (mL
MFI9IFC/
05/07/18
23
2.3
1
100
05/08/18
23
2.36
1
97
05/09/18
23
3.43
1
67
05/10/18
23
2.36
1
97
05/14/18
23
2.32
1
99
05/15/18
23
2.42
1
95
05/16/18
23
2.45
1
94
05/17/18
23
2.44
1
94
Using EPA 503 rules for Class A Sludge, Appendix F:
-follow SM 9221 E (Al Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal ColifornJgram
-Calculation(EPA) _ (10' (MPN Index/100 mis))/(largest volume"%dry solids)
where: MPN Index/100mis is read from MPN table,
-Each reported value must be <I000 MPN per gram total solids (dry wt basis)
Using EPA 503 rules for Class B Sludge, Appendix F:
-follow SM 9221 E (Al Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10' (MPN Index/100 mis))/(largest volume'% dry solids)
where: MPN Index/100mis is read from MPN table,
-Reported value is geometric mean of all samples
-Reported value must be <2 million MPN per gram total solids (dry wt basis)

OWASA
Digested Sludge Analysis for Fecal Coliform
Reported MPN fecal coliformlg = 61 (geometric mean for Class B)
MAX 98 (single value, Class A)
MIN 6
Average MPN fecal coliform/g= 76
Date
MPN Index/ 100mis
TS %
Largest Volume Used mL
MPN FC/
07/09/18
23
2.52
1
91
07/10/18
2
3.27
1
6
07/11/18
23
4.29
1
54
07/12/18
23
3.09
1
74
07/16/18
23
2.44
1
94
07/17/18
23
2.35
1
98
07/18/18
23
2.53
1
91
07/19/18
23
2.39
1
96
Using EPA 503 rules for Class A Sludge, Appendix F:
-follow SM 9221 E (Al Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10 • (MPN Index/100 cols))/(largest volume" % dry solids)
where: MPN Index/100mis is read from MPN table,
-Each reported value must be <1000 MPN per gram total solids (dry wt basis)
Using EPA 503 rules for Class B Sludge, Appendix F:
-follow SM 9221 E (A] Media) -2006, SM 9221 C Table 9221:1V-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10 r (MPN Index/100 mis))/(largest volume- % dry solids)
where: MPN Index/100mis is read from MPN table,
-Reported value is geometric mean of all samples
-Reported value must be <2million MPN per gram total solids (dry wt basis)

OWASA
Digested Sludge Analysis for Fecal Coliform
Reported MPN fecal coliform/g = 15 (geometric mean for Class B)
MAX 103 (single value, Class A)
MIN <9
Average MPN fecal coliform/g= 24
Date
MPN Index/ 100mis
TS %
Largest Volume Used (mL)
MPN FC/
09/18/18
23
2.23
1
103
09/19/18
2
2.14
1
9
09/20/18
2
2.1
1
10
0924/18
<2
2
1
<10
0925/18
4
2
1
20
0926/18
<2
2.08
1
<10
0927/18
<2
2.2
1
<9
1
Using EPA 503 rales for Class A Sludge, Appendix F:
-follow SM 9221 E (AI Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA)= (10 • (MPN Index/100 mis))/(largest volume*%dry solids)
where: MPN Index/100mis is read from MPN table,
-Each reported value must be <I000 MPN per gram total solids (dry wt basis)
Using EPA 503 rales for Class B Sludge, Appendix F:
-follow SM 9221 E (Al Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) — (10 • (MPN Index/] 00 mis))/(largest volume'% dry solids)
when: MPN Index/100mis is read from MPN table,
-Reported value is geometric mean of all samples
-Reported value must be <2 million MPN per gram total solids (dry wt basis)

OWASA
Digested Sludge Analysis for Fecal Coliform
Reported MPN fecal coliform/9 = 50 (geometric mean for Class e)
MAX 106 (single value, Class A)
MIN 8
Average MPN fecal coliform) = 70
Date
MPN Index / 100mis
TS (%)
Largest Volume Used (mL)
MPN FC/
11/05/18
23
2.48
1
93
11/06/18
23
2.42
1
95
11/07/18.
23
2.35
1
98
11/08/18
23
2.18
1
106
I1/12/18
13
2.21
1
59
11/13/18
2
2.44
1
8
11/14/18
23
2.42
1
95
11/15/18
<2
2.26
1
<9
Using EPA 503 rules for Class A Sludge, Appendix F:
-follow SM 9221 E (A I Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal ColifomJgram
-Calculation(EPA) _ (10 • (MPN Index/100 mis)y(largest volume• %dry solids)
where: MPN Index/100mis is read from MPN table,
-Each reported value must be <I000 MPN per gram total solids (dry wt basis)
Using EPA 503 rules for Class B Sludge, Appendix F:
-follow SM 9221 E (AI Media) -2006, SM 9221 C Table 9221:IV-2006
-Report as MPN Fecal Coliform/gram
-Calculation(EPA) _ (10' (MPN Index/100 mis))/(largest volume•%dry solids)
where: MPN Index/100mis is read from MPN table,
-Reported value is geometric mean of all samples
-Reported value must be <2 million MPN per gram total solids (dry wt basis)

ft •' i'5/.i s-5
RESEARCh & ANALYTICAL Report of Analysis
LABORATORIES, INC. 1129/2018
For: Orange Water& Sewer Authority
C`•.•••'^•^:'�4p�--�.
400 Jones Ferry Road
Lab Sample ID:
Carrboro, NC 27510
= y NC Kay=>' C
Attn: Sandra Bradshaw
- Nc.377oL i
L
Collection Date:
1/82018 9:15
ANO.vy�,,,t
Method
,uslo
Client Sample ID: Digested Sludge
Lab Sample ID:
44889-01
Site: OWASA
Collection Date:
1/82018 9:15
jParimeter; -_ ,.
Method
Result-
-Units
_
- Anal4str Analysis DateTme '
Total Kjeldahl Nitrogen
SM 4500 N Org B-1997 (NH3
113000
mglkg
MZ
1262018
D-1997)
Nitrite Nitrogen
SM 4500 NO2B
9.48
mglkg
DW
1/92018
Ammonia NRrogen
SM 4500 NH3 D-1997
70300
mg/kg
MZ
1/192018
Total Phosphorus
SM 4500 P E
46900
mg/kg
LP
1/162018
Total Solids
SM25408
2.32
%
AA
1/102018
Nitrate +Nitrite
SM4500 NO3E
193
mg/kg
DW
1/92018 1530
Nitrate Nitrogen
SM4500 NO3E
1174
mg/kg
DW
1/92018
Molybdenum, Total
SW8466010C
6.43
mg/kg
KL
1222018
Mercury, Total
SW846 7471B
2.01
mg/kg
KL
1/122018
Cadmium, Total
SW846 Method 6010 C
1.33
mg/kg
KL
1222016
Calcium, Total
SW846 Method 6010 C
19900
mg/kg
KL
1222018
Copper, Total
SW846 Method 6010 C
273
mg/kg
KL
1222018
Aluminum, Total
SW846 Method 6010 C
51000
mg/kg
KL
1222018
Arsenic. Total
SW846 Method 6010 C
c2.16
mg/kg
KL
1222018
Lead, Total
SWB46 Method 6010 C
3.92
mglkg
KL
1222018
Magnesium,Total
SW846MethOd6OlOC
4630
mg/kg
KL
1222018
Nickel, Total
SW846 Method 6010 C
13.9
mg/kg
KL
1/22/2018
P.O. Bbk473 106 Shod Street Kemers011e. North Camlina 27284 Tel: [phone] Fac 336.99&0326 y erraadalabs,com Page i
21 fAd bde�^ noRL vl

RESEARCh & ANA1yTiCA1 Report of Analysis
LABORATORIES? INC. 1129/2018
Client Sample ID:
Digested Sludge
Lab Sample 10:
44889411
Site:
OWASA
Collection Date:
1/82018 9:15
'P9iamefe'r�.
,�."--�Memor3.�f,<3,:,,,,.,�3��.y�`.'Result,,; s";.Units
-i'M. efvstyAnal'vsis Oste)Tme
Potassium, Total
SW846 Method 6010 C
7920
mg/kg
KL
11=018
Selenium. Total
SW846 Method 6010 C
2.59
mg/kg
KL
1222018
Sodium, Tolal
SW848 Method 6010 C
4440
mg/kg
KL
1222018
Zinc, Total
SW846,Method 6010 C
825
mg/kg
KL
1222018
NA=not onWyzed
P.O. Box 473106 Shod Street K rnersville. Nodh Carolina T/284 Tel: [phone] Fax. [phone] wxx.ranEataEacom Paget
rai ms basic noRL_vt

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RESEARCh & ANA1YTICA1 Report of Analysis
LAbORATORIESF INC. 3120/2018
For: Orange Water & Sewer Authority
�.� �`:••""'^'"2+
D,•1!�`�
400 Jones Ferry Road
Z ��:i�y
Carrboro, NC 27510
Z�?y NC 834 ?
Attn: Sandra Bradshaw
1 NCH37701
OWASA
O�REQ, r ��
Collection Date:
3/52018
Onsoll
Client Sample ID:
Digested Sludge
Lab Sample to:
47419-01
Site:
OWASA
Collection Date:
3/52018
10:13
Parameter
_ Method
Result
Units
Adalvst Analvsls DatelTlme
Total Kjeldahl Nitrogen SM 4500 N Org B-1997 (NH3
80600
mg/kg
MZ
3/15/2018
D-1997)
Nitrite Nitrogen
SM 4500 N028
<3.98
mg/kg
DW
3/6/2018
1410
Ammonia Nitrogen
SM 4500 NH3 D-1997
57000
mg/kg
MZ
3/15/2018
Total Phosphorus
SM 4500 P E
11000
mg/kg
LP
3/17/2018
Total Solids
SM25408
2.51
%
AA
3/82018
Nitrate +Nitrite
SM4600 NO3E
139
mg/kg
DW
3/62018
1410
Nitrate Nitrogen
SM4600 NO3E
139
mg/kg
DW
3/82018
1410
Aluminum, Total
SW 8466010D
55800
mg/kg
KL
3/82018
Molybdenum, Total
SW8466010C
7.13
mg/kg
KL
3/8/2018
Mercury, Total
SW8467471B
0.785
mg/kg
KL
3/14/2018
Cadmium. Total
SW846 Method 6010 C
1.04
mg/kg
KL
3/82018
Calcium, Total
SW846 Method 6010 C
28500
mg/kg
KL
3/82018
Copper, Total
SW846 Method 6010 C
266
mg/kg
KL
3/82018
Arsenic, Total
SW846 Method 6010 C
-1.99
mg/kg
KL
3/82018
Lead, Total
SW846 Method 6010 C
4.42
mg/kg
KL
3/82018
Magnesium, Total
SW846 Method 6010 C
5500
mg/kg
KL
3/82018
Nickel, Total
SW846 Method 6010 C
12.6
mgAg
KL
3/82018
P.O. Box 473105 Short Street Kernersviile, North Carolina 27284 Tel: [phone] Fax: [phone] vww.randalabs.corn Pagel
d1 .

QRESEARCH
& ANAIyTICAI
LAbORATORIES, INC.
Report of Analysis
3/20/2018
Client Sample ID: Digested Sludge
Lab Sample ID: 47419-01
Site:
OWASA
Collection Date: 3/5/2018 10:13
Parameter
Method
Pwultanits
Anal st Analysis DataMme
Potassium, Total SW845 Method 6010 C
7170
mg/kg
KL 3/82018
Selenium, Total
SW846 Method 6010 C
3.03
mg/kg
KL 3/82018
Sodium, Total
SW846 Method 6010 C
5260
mg/kg
KL 3/8/2018
Zinc, Total
SW846 Method 6010 C
757
mg/kg
KL 3/82018
NA =not analyzed
P.O. Box 4731066hod81reet KememVIlle, Ngdh Carolina 27264 Tel: [phone] Fax: [phone] wwx.randalabs.wn, Paget

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> ' Y R€sE�t�ch & ANA1 �iCAI
y Report of Analysis
La60RAT®R@��r INC. 5/30/2018
For: Orange Water & Sewer Authority .`�'p�'�':•••""
400 Jones Ferry Road
Carrboro, NC 27510 f
.N NC 434
Attn: Sandra Bradshaw r ^C437701
Client Sample ID: Digested Sludge
Lab Sample ID:
50249-01
Site: OWASA
Collection Date:
5!]/2018 10:45
Paramet¢r
Method
R¢sult
Units
Analyst Analvsls OateRime
Total Kjeldahl Nitrogen
SM 4500 N Org B-1997 (NH3
85900
mg/kg
M2
5252018
D-1997)
Nitrite Nitrogen
SM 4500 NO2B
<4.35
mglk9
DW
5192018
Ammonia Nitrogen
SM 4500 NH3 D-1997
60500
mg/kg
MZ
525/2018
Total Phosphorus
SM 4500 P E
42700
mg/kg
LP
5/16/2018
Total Solids
SN12540B
2.30
ro
AA
5/102018
Nitrate + Nitrite
SN14500 NO3E
141
mg/kg
DW
5192018
Nitrate Nitrogen
SL14500 NO3E
141
mg/kg
DW
5/92018
Aluminum, Total
SW 8466010D
55800
mg1Y.g
KL
5/152018
Arsenic, Total
SW8466010D
<2.17
mg/kg
KL
5/15/2018
Cadmium, Total
SW 846 60100
1.10
mg/kg
KL
5/152018
Calcium, Total
SW 8466010D
18000
mg/kg
KL
5/152018
Copper. Total
SW 8466010D
296
mg/kg
KL
5/152018
Lead, Total
SW 8466010D
4.33
mg/kg
KL
5/15/2018
Magnesium, Total
SW 84660100
4070
mg/kg
KL
511512018
Molybdenum. Total
SW 8466010D
8.53
mg/kg
KL
5/152018
Potassium, Total
SW 8466010D
6710
mg/kg
KL
5/152018
Selenium, Total
SW 8466010D
4.33
mg/kg
KL
5/152018
P.O. Box 473105 Short Seem Kernersville. North Carolina 27284 Tel: [phone] Fax [phone] fwnv.randalabs.com Pagel

NA = not onolyaed
P.O. Box 473 10 Shod Steel KernersvilI., Nonh Carolina 27284 Tel [phone] fax [phone] rn ,randalabs.com Paget
RESEARCH & ANA1yTOCA[
LA ORAT®R8ESP NC.
Report of Analysis
5/30/2018
Client Sample
ID: Digested Sludge
Lab Sample ID: 50249-01
Site:
OWASA
Collection Date: SR2018 10:45
Paameter
MethotlResult
Units
Analyst Analysis DateR(me
Zinc, Total
SW 846 6010D
804
mglkg
KL 5/152018
Mercury, Total
SW8467471B
0.813
mg/kg
KL 5/15/2018
Nickel, Total
SW846 Method 6010 C
19.1
mg/kg
KL 5/152018
Sodium. Total
SW846 Method 6010 C
4030
mg/kg
KL 5/15/2018
NA = not onolyaed
P.O. Box 473 10 Shod Steel KernersvilI., Nonh Carolina 27284 Tel [phone] fax [phone] rn ,randalabs.com Paget

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R€5€ARCh U ANA[yTBCAI Report Analysis
._ LA ORAT®R9ES, INC. 8/1/2018
G-1
For: Orange Water& Sewer Authority O:i'5P .,!
400 Jones Ferry Road
Carrboro, NC 27510 = rx iy 14C93-1
Attn: Sandra Bradshaw NC 937701
Client Sample ]D: Digested Sludge
Lab Sample to:
53038-01
Site: OWASA
Collection Date:
7/9/2018 10:05
Parameter
Method
Result
Units
Analyst Analysis Date?Ime
%Solids
SM 25408
2.61
%
AW
7/172018
Total Kjeldahl Nitrogen
SM 4500 N Org B-1997 (NH3
71600
mgMg
FK
7/272018
DA997)
Nitrite Nitrogen
SM 4500 N028
<3.83
mg/kg
DW
7/11/2018
Ammonia Nitrogen
SM 4500 NH3 D-1997
57800
mglkg
FK
7/31/2018
Total Phosphorus
SM 4500 P E
91500
mg/kg
BJ
7/17/2018
Nitrate w ailrite
SM4500 NO3E
87.8
mgAq
DW
7/11/2018
Nitrate Nitrogen
S1v14500 NO3E
87.8
mg/kg
DW
7/1112018
Aluminum. Total
SIN 8466010D
49700
mg/kg
KL
7/16/2018
Arsenic. Told[
SW 846 6010D
2.06
mg/lig
KL
7/162018
Cadmium. Total
SNI 84660100
0.648
mgrKg
KL
7/16/2018
Calcium. Total
SW 8466010D
18100
mg/kg
KL
7/162018
Copper, Total
SW 8466010D
254
mg/kg
KL
7/16/2018
Lead. Total
SW 846 60100
9.31
mgrag
KL
711 612 01 8
Magnesium. Total
SW 84660100
4290
mglkg
KL
7/16/2018
Molybdenum, Total
SW 8466010D
5.03
mg/kg
KL
7/162018
Potassium, Total
SW 846 60100
6270
mg/kg
KL
711612018
Selenium, Total
SW 8466010D
2.48
mglkg
KL
7/162018
P.O. Box 4733105 Shod street Kemersvilte. None Carolina 27284 Tel [phone] Fax. [phone] vnay. randalabs.com Pagel

NA = aol OnoN%ed
P.O. Boa 473 106 Short Street Kam.m-rille. North Carolina 27284 Tet: 336-9962841 Far: 335-996.0326 vane. randalabs.com Page 2
REsEARCh & ANALyTiCAI
+L©RAT®RBeS NC.
Report of Analysis
Client Sample
ID: Digested Sludge
Lab Sample 10: 53038-01
Site:
OWASA
Collection Date: 7/9/2018 1005
Parameter
Method
Result
Units
—_._..__._.___. ._. ..-..
Analyst Analysts OateRime_
Zinc, Total
SW 8466010D
653
mg/kg
KL 7/162018
Mercury, Total
SW8467471B
0.563
mg/kg
KL 7/122018
Nickel. Total
SW846 Method 6010 C
12.0
mg/kg
KL 7/162018
Sodium, Total
SW846 Method 6010 C
4240
mg/kg
KL 7/162018
NA = aol OnoN%ed
P.O. Boa 473 106 Short Street Kam.m-rille. North Carolina 27284 Tet: 336-9962841 Far: 335-996.0326 vane. randalabs.com Page 2

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RESEARCH & ANAij' a ICA1
UbotzuoRIESr NC.
Anolyticol/Process COnsu1tallons
September 18, 2018
Orange Water & Sctrcr Authority
400 Jones Ferry Road
Carrboro,NC 27510
Attention: Sandra Bradshaw
Chemical Am sis for Selected Parameters and Sampling Location Identified as Digested Sludge +TCLP
(An Otangewaste&SesrerAmhorityProject, collected to Sepleniber2018)
I. Miscellaneous
Digested Sludge
Parameters
Unit
Sluder
Aluminum, Total
mGkg
52,000
Ammonia -Nitrogen (NB 3-N)
mg/kg
67,800
Arsenic,Total
mg/kg
2.70
Calcium, Total
mg/kg
17.700
Cadmium, Total
mg/kg
0.908
Copper. Total
mg/kg
333
Chloride
mg/kg
20,400
Chromium, Total
mg/kg
12.9
Iron,'foial
mgka
11,400
Laud, Total
mVkg
4.66
Magnesium, Total
me&g
3,690
Manganese, Total
mg/kg
719
Mercury, Total
mgkg
0.538
Molvbdcnum, Total
mg/kg
5.74
Nickel. Total
mtgkg
13,1
Nitrite-Nitmgcn (NO -2-14)
mJkg
<8.33
Nllrow-Nitrogen(ND-3-N)
mg/kg
251
NO2+NO3
mJkg
251
Phosphors& Total
m_kg
42,500
Potassium, Total
mglig
5,300
Sclenium,Total
mJkg
2.49
Silver, Total
mg};g
<2.08
Sodium, Total
mJkg
4,560
Sulfur
ntgkg
8,520
Total Kjeldahl Nitrogen (TKN)
nt_g/kg
94,600
Zme, Total
mg6:c
850
Taal Solids
%
2.40
Sample Number:
55351-01
Sample Callected Date:
09/10/18
Sample Callected Time:
1000
mg/kg = milligrams per kilogram = pans per million
%= Percent Std. Units- Swn&M Units

QRESEARCh & ANALYTICAL
LAbORATORiESr INC.
frg1y11CpVhOCBss eonwnanolu � p\'d;e�.e!:/(a_
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nlemmn Make
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N n li ( C .....in LIJmI (m�[IQ [118/1) 1 eat EPA'Whan
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POJS it—. Oola OAA 100 6010
D. cadmium OROS nQL 101 4150
.DI cl—inm Dam IIQL 5.m SOM
INC% Lead 0.05 IIQI. IN "to
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Mll2 Sil— Om0 RQL sW 0I0
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DdIB 0...[r¢ 0050 RQL 0,500 L'60
11.29 r..T[mddmile OWO WlL 05" .10
nA`J Chlmehem[ne 0050 RQL IN 82N
11.02 Oalommml O.IW tDo. aDo 8160
Da18 L'.-MIC.'ual.nm ama nQL .d. 400
.419 I,IAMFIalwoime 11050 RQL .700 S30
11J135 110,4 r.1.0 Ea.m 0500 RVL 20 BSW
0L34 l.ualJuunlDl[rc 0.050 RQL OSW 1200
1)"m0 Tn[I1IaeCWI.ao` 0"0 DQI. MOO R"
DWI \'iml [ldunJc 0050 RQL 0.200 8260
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D.n 6Crmed RQL 210 .1.
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R-015 Kimmol 200 it Sao 8110
11406 0_1 100 RQL 100 BSN
ROn Id.DieNaaWv[n[ O730 nQ1. 7.5o nN
6o3) :bnini0malu Dam RQL arm 8210
M32 IlesNao6evnw 01131 nQl. O.LW 9210
1)0U 11[rxlJmohuuJinm 005o RQL 0500 8310
0.01 Ileav[Idnmllmm 01W RQ1. lW 6210
0.016 NamtIe._'.RQL i" Sim
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11J119 PIIidii. n.Na IIQI. SW N.
IMJI 2.4.3TAdaniPhend I... IIQI. IW 9270
R.wl 2.1611a1C..Oh ml IL20u OQL +W 8110
Iv. TCLISIMICIDIFMlenmanrs
11.20 Chlowa[ 0001 1101. OO.W Carl
606 2.4-D LnW RQL 100 8151
6a❑ Fmm. oCal DQI. 0020 BWI
D'Ol 11'a[hbr am& 11QL DOW BWI
11911 lmdene 0001 IIQI. DOC 8081
0.14 Ymmpvhla IUW RQI. too 9081
n.15 Ta.opl. Oam RQ1. o.XA so..
ILP :J.5.1 NSH—) o5W RQL LW 8111
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't RESEARCh & ANAI TICA1 )1 " p I I (•� c
YReport of Analysis
' LA ORAT®R9ES/ INC. 12/7/2018
For: Orange Water & Sewer Authorityle
�� QQG.�:.•••••• ;'7C-4
400 Jones Ferry Road
�i Cir
Carrboro, NC 27510
a
2 j W NC /34
Attn: Sandra Bradshaw
NC037701 e
Collection Date: 11/52018 10:00
!�FC......
Method
Result
Uriff§
Adaivst
Client Sample ID: Digested Sludge
Lab Sample ID: 58648-01
Site: OWASA
Collection Date: 11/52018 10:00
PSrdmeter-
Method
Result
Uriff§
Adaivst
Analvsia DatalTlma I
%Solids
SM 25408
2.50
%
AW
11/82018
Total Kjeldahl Nitrogen
SM 4500 N Org B-1997 (NH3
111000
mg/kg
FK
11/192018
D-1997)
Nitrile Nitrogen
SM 4500 NO2B
X4.00
mg/kg
DW
11/7/2018
Ammonia Nitrogen
SM 4500 NH3 D-1997
64500
mg/kg
FK
11/192018
Total Phosphorus
SM 4500 P E
46700
mg/kg
BJ
11/132018
Nitrate i Nitrite
SM4500 NO3E
92.8
mg/kg
DW
11/72018
Nitrate Nitrogen
SM4500 NO3E
92.8
mg/kg
DW
11/72018
Aluminum, Total
SW 8466010D
54000
mg/kg
JF
11/142018
Arsenic, Total
SW 846601 OD
3.50
mg/kg
JF
11/14/2018
Cadmium, Total
SW 846601 OD
1.23
mg/kg
JF
11/14/2018
Calcium, Total
SW 84660100
21700
mg/kg
JF
11/142018
Copper, Total
SW 8466010D
419
mg/kg
JF
11/142018
Lead, Total
SW 84660100
8.34
mg/kg
JF
11/142018
Magnesium, Total
SW 8466010D
5400
mg/kg
JF
11/142018
Molybdenum, Total
SW 8466010D
7.17
mg/kg
JF
11/142018
Potassium, Total
SW 8466010D
7120
mg/kg
JF
11/14/2018
Selenium. Total
SW 8466010D
3.33
mg/kg
JF
11/142018
P.O. Box 473 106 short Street Kemersville, Nonn Carolina 27284 Tel: [phone] Fax: [phone] w .randalabs.com Page 1

NA =not Onely2ed
P.O. Be. 4731066hon SUeel Kernereviea, Nenh Carolina 272U Tel: [phone] Faa: 336-996-0326 ww.v.mn4abba.wm Paget
:J
RESEARCH & ANALYTBCA1
LAbORATORIES, INC.
Report of Analysis
12/7/2018
Client Sample ID:
Digested Sludge
Lab Sample ID: 58848-01
Site:
OWASA
Collection Date: 11/5/2018 10:00
j Parameter
MethotlResult
Mnits
Anal st Analysis Oate/Time —�
Zinc, Total
SW8466010D
966
mg/kg
JF 11/14/2018
Mercury, Total
SW846 74718
0.252
mg/kg
MM 11/19/2018
Nickel, Total
SW846 Method 6010 C
18.5
mg/kg
JF 11/14/2018
Sodium, Total
SW846 Method 6010 C
4870
mg/kg
JF 11/14/2018
NA =not Onely2ed
P.O. Be. 4731066hon SUeel Kernereviea, Nenh Carolina 272U Tel: [phone] Faa: 336-996-0326 ww.v.mn4abba.wm Paget
:J