NC0024333_Application_20000413

NPDES DOCUMENT SCANNING COVER SHEET
NC0024333
Monroe WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
°'
Application _
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
April 13, 2000
This document is printed on reuse paper - igriore any
cc:mte/it on the re Terse side

HAZEN AND SAWYER
Environmental Engineers & Scientists
April 13, 2000
Mr. David Goodrich, P. E., Supervisor
NPDES Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Hazen and Sawyer, P.C.
4011 WestChase Blvd.
Raleigh, NC 27607
919 833-7152
Fax: [phone]
Re: Monroe WWTP
Amendment to NPDES Permit No. NC0024333
Dear Mr. Goodrich:
The City of Monroe is in the final design stages of expanding and upgrading their wastewater treatment
plant (WWTP) from 9 to 12.5 mgd. The Division of Water Quality submitted the Finding of No
Significant Impact (FNSI) and the environmental assessment to the State Clearinghouse on February 4,
2000 (see attached). Following the thirty (30) day advertisement period, there was no significant
comment or public objection to the proposed project. Consequently, on March 17, 2000, the Division of
Water Quality approved the City's 201 Facilities Plan Amendment (see attached). Contract Documents
were submitted to the Construction Grants and Loans (CG&L) Section for their review during the latter
half of December 1999. Recent conversations with CG&L indicate that review comments will be
returned by the end of this week. We anticipate a 4 to 6 week time frame to respond to the State's
review comments, with the hope of advertising the project by July 1, 2000 and awarding the project by
the middle of August 2000.
As you are well aware, the project can not be awarded until the City receives an Authorization -to -
Construct (ATC) from CG&L, which is contingent upon receiving a new NPDES permit from your group.
It is our understanding that the existing Monroe WWTP NPDES permit (Permit No. NC0024333) has
been submitted by the City for renewal and is currently in the review process. Attached is a NPDES
permit application for the proposed plant upgrade and expansion, which is submitted as an amendment
to the existing Monroe NPDES permit application.
We understand the heavy workload the NPDES Unit is currently experiencing, which is compounded by
a shortage of staff to perform the work. However, we request that this permit be expedited if at all
possible. The project has been designed, the 201 Facilities Plan Amendment has been approved, and
funds are allocated to finance the proposed improvements. It is imperative that construction begin this
fall so that a new flow equalization basin can be built which will significantly mitigate the potential for wet
weather sanitary sewer overflows (SSOs) and greatly enhance treatment plant performance during wet
weather conditions.
Should you have any questions or require additional information or further clarification, please give me a
call. Your consideration is greatly appreciated.
Very truly yours,
Hazen and Sawyer, P.C.
James N. Struve, P.E.
Associate
JNS:jyi
cc: Russ Colbath
Bob Berndt
New York. NY • Armonk, NY • Woodbury. NY • Upper Saddle River, NJ • Detroit, MI • Raleigh, NC • Charlotte, NC • Fairfax, VA • Hollywood, FL • Boca Raton, FL • Fort Pierce, FL • Gainesville. FL • Sarasota. FL • Miami, FL

' )AMES B.•HUNT. JR.
GOVERNOR - :'K
BILL HOLMAN
ECRETARY
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NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
March 17, 2000
Mr. Jerry E. Cox, City Manager
City of Monroe
P.O. Box 69
Monroe, North Carolina 28111-0069
SUBJECT:
Dear Mr. Cox:
DIVISION- OF WATER QUALITY
RECEIVED
MAR 2 2 2000
HAZEN & SAWYER, PC
RALEIC-H, I•.
Approval
City of Monroe
WWTP Expansion
201 Facility Plan Amendment
Project No. CS370564-05
The City of Monroe 201 Facilities Plan Amendment has been reviewed by the
Division of Water Quality. The amendment consists of expanding and upgrading the
existing 9.0 mgd wastewater treatment plant to a 12.5 mgd facility. The amendment is
hereby given approval.
If you have any questions concerning this matter, please contact Mr. Rob Brown
at [phone].
RB/pe
cc: Mooresville Regional Office
Hazen & Sawyer
Amy Simes
Reg Sutton
DMU/FEU/SRF
Sincerel
John R. Blowe, P.E., Chief
Construction Grants & Loans Section
FIlei LST
CONSTRUCTION GRANTS & LOANS SECTION
1633 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1633
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/1O% POST -CONSUMER PAPER
Vfnr

CDENR
:4,
AMES B. •.„.
DHUNT JR.
• .GOVERNOR
• 'BILL HOLMAN
SECRETARY
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KERR .T.• STEVENS "•-•,�
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Mr. Jerry E. Cox, Cityanager
City of Monroe
PO Box 69
Monroe, North Carolina 28111-0069
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
February 4, 2000
Dear Mr. Cox:
DIVISION OF WATER QUALITY
SUBJECT: FNSI Advertisement
Wastewater Treatment Facilities
Project No. CS370564-05
z
This is to inform you that the Finding of No Significant Impact (FNSI) and the
environmental assessment have been submitted to the State Clearinghouse. The
documents will be advertised for thirty (30) calendar days in the N.C. Environmental
Bulletin. Advertising the FNSI is required prior to a local unit of government receiving a
loan under the State Revolving Fund. You will be informed of any significant comment
or public objection when the advertisement period is completed.
A copy of the documents is transmitted for your record. The documents should
be made available to the public.
If there are any questions, please contact me at [phone].
Sincerely,
\di g c_430_6471J2'r
T. Allen Wahab, P.E., Assistant Chief
for Engineering Branch
Attachment
cc: Mooresville Regional Office
zen & Sawyer
Reg Sutton
FEU/PMB/DMU
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CONSTRUCTION GRANTS & LOANS SECTION
1633 MAIL SERVICE CENTER. RALEIGH. NORTH CAROLINA 27699-1633
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER

FINDING OF NO SIGNIFICANT IMPACT
AND ENVIRONMENTAL ASSESSMENT
UPGRADE AND EXPAND EXISTING WASTEWATER TREATMENT PLANT
MONROE, NORTH CAROLINA
AGENCY: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT
AND NATURAL RESOURCES
CONTACT: JOHN R. BLOWE, P.E., CHIEF
DENR -DIVISION OF WATER QUALITY
CONSTRUCTION GRANTS AND LOANS SECTION
1633 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1633
FEBRUARY 4, 2000

FINDING OF NO SIGNIFICANT FACT (FNSI)
Title VI of the amended Clean Water Act requires the review and approval of environmental
information prior to the construction of publicly -owned wastewater treatment facilities
financed by the State Revolving Fund (SRF). The proposed project has bcen evaluated for
compliance with the North Carolina Environmental Policy Act and determined to be a major
agency action which will affect the environment.
Project Applicant: Monroe, North Carolina
Project Number: CS370564-05
Project IDescription: The proposed project consists of upgrading and expanding the existing
9.0 rngd plant to a 12.5 mgd wastewater treatment facility.
Total Project Cost: S9,690,000
Revolving Loan: $9,690,000
Mitigative measures will be implemented to avoid significant adverse environmental impacts,
and an environmental impact statement (EIS) will not be required. The decision was based on
inionnation in the facilities plan, a public hearing document, and reviews by governmental
agencies. An environmental assessment supporting this action is attached. This ANSI
completes the environmental review record, which is available for inspection at the State
Clearinghouse.
No administrative action will be taken on the proposed project for at least thirty calendar days
after notification that the FNSI has been published in the North Carolina Environmental
Bulletin.
Sincerely,
Kerr T. Stevens, Director
Division of Water Quality

ENVIRONMENTAL ASSESSMENT
A. Proposed Facilities and Actions
Figure 1 identifies the site of the proposed improvements to the existing wastewater treatment
facility.
Treatment Facilities. The existing 9.0 mgd treatment plant will be upgraded and expanded to
a 12.5 mgd treatment facility. Improvements to the existing plant consist of modifying two
existing influent pumps and adding four new influent pumps, installing two fine screens,
providing a 42-inch force main to convey the influent from the existing screening facility to the
new screening location, constructing a new aeration basin to operate in series with the existing
aeration basins, modifying the existing aeration effluent boxes and effluent piping to provide
positive flow to the secondary clarifiers, converting two existing digesters to secondary
clarifiers, changing the existing solids lagoon to a flow equalization basin, expanding the
blower capacity with a fourth blower, and installing an ultraviolet disinfection system to
replace the existing chlorination/dechlorination facilities. Also, two gravity belt thickeners and
new pumps will also be provided in a new thickening building. Additional requirements will
consist of yard piping, site grading, and electrical work. The effluent will continue to be
discharged into Richardson Creek. The sludge will continue to be land applied.
B. Existing Environment
Topography and Soils. The city of Monroe is located in Union County. The topography is
characterized by rolling hills with shallow, erodible soils. A range of soils exists; however,
there are some severe limitations to installing septic tank drainfields. Soils in Union County
are not permeable, and the condition is worsened by rock underlying the soil near the surface.
Surface Water. The Monroe area is located in the Yadkin -Pee Dee River Basin. Richardson
Creek is the largest stream in the area. Monroe's existing wastewater treatment plant
discharges effluent into Richardson Creek, which has a 7-day, 10-year low flow of 0.43 cfs.
Water quality is chemically/biologically impaired in Richardson Creek due to non -point and
point sources of pollution.
Water Supply. Monroe's main water supply is Lake Twitty, which is located on Stewarts
Creek. Lake Monroe, which is located on Little Richardson Creek, and Lake Lee, which is
located at the confluence of Little Richardson Creek and Richardson Creek, are used to
supplement the city's main -water supply.

C. Existing Wastewater Facilities
The city of Monroe currently operates a 9.0 mgd wastewater treatment plant. The facility was
originally constructed in 1965 to process 3.5 mgd. The plant was expanded to 7.0 mgd in
1976. Another expansion from 7.0 to 9.0 mgd was completed in 1995. In addition to serving
the Monroe area, the treatment facility provides capacity for approximately 1.95 mgd of flow
from Union County. Treatment facilities at the Monroe plant consist of influent pumping
stations, rotary screens, a flow equalization basin, single -stage activated sludge facilities,
tertiary filters, chlorination and dechlorination equipment, and post -aeration facilities. The
effluent is discharged into Richardson Creek. Sludge treatment facilities consist of aerobic
digesters, centrifuges for sludge thickening/dewatering , and a sludge storage tank. The
processed sludge is land applied. All areas within the city of Monroe are provided central
collection and treatment service. Infiltration into the collection system is non -excessive, but
inflow is excessive. The city of Monroe has already implemented elements of the inflow and
infiltration reduction program.
D. Need for Proposed Facilities and Actions
The Monroe area has experienced numerous rainfall events which have resulted in significant
hydraulic overloading of the treatment plant. Heavy rainfall has also had a significant effect on
the plant's ability to comply with the established effluent limitations for BOD5 and suspended
solids. Monthly flows have averaged approximately 7.5 mgd with flows exceeding the
permitted capacity of 9.0 mgd on several occasions. It is anticipated that growth in the area
will increase the demand for more wastewater to be treated at the Monroe treatment plant.
Accordingly, the Division of Water Quality requires an evaluation of future flows prior to the
treatment plant's flow exceeding 80 percent of the permitted capacity. The operator/owner of
the facility must also make plans to expand the wastewater treatment plant prior to the
permitted hydraulic capacity exceeding 90 percent of the design flow. In addition to expanding
the Monroe plant to serve the demand, the treatment plant will be upgraded to consistently
comply with the NPDES permit. Current effluent limitations (summer/winter) are BOD5
=7.3/14.5 mg/1, TSS=30 mg/1, NH3-N=1/2 mg/1, Fecal Coliform=200/100 ml, Dissolved
Oxygen=6 mg/1, Total Residual Chlorine=17 ,ug/1, and pH=6-9 SU. Speculative effluent
limitations (summer/winter) for the proposed .treatment plant are BODS 5/10 mg/1, TSS=30
mg/1, NH3-N=1/2 mg/I, Fecal Coliform=200/100 ml, Dissolved Oxygen=6 mg/1, pH=6.0-9.0
SU, and Residual Chlorine=17 jig/l. Monroe will not have to comply with the residual chlorine
effluent limitation since an ultraviolet disinfection system will be installed.
2

E. Alternatives Analysis
The city of Monroe needs to make significant improvements to the existing wastewater
treatment facilities to process future flows, to achieve more stringent effluent limitations, and
to comply with the requirements of 40 CFR, Part 503. Accordingly, a facilities plan was
prepared, and several alternatives were evaluated. The "no -action" alternative was determined
not to be practical due to the inability of the existing plant to process the projected hydraulic
flow and consistently comply with stringent effluent limitations. An optimum plant operation
will not achieve the desired results because additional treatment capacity is required, and the
existing treatment facilities do not have the capability to consistently comply with the effluent
limitations. A land application system was determined not to be the most feasible solution for
solving the wastewater treatment problems. Aneffluent reuse system was investigated, and it
was determined that this alternative may offer some potential benefits for minor reductions in
the amount of effluent to be discharged. However, major reductions were not considered
likely, and this alternative was rejected. Moreover, some of the existing treatment plant has
some deficient equipment that can be repaired or upgraded, and adequate capacity can be
provided at the existing site to process the projected future flows. This alternative has the
lowest present -worth value, and it is the selected alternative.
Environmental Consequences, Mitigative Measures
All of the proposed improvements will take place at the existing treatment plant site. Less than
one-half acre will be cleared to construct some of the proposed facilities. None of the
proposed facilities will be located in a wetland or floodplain area. A sedimentation and erosion
control plan will be implemented to control adverse runoff to streams. The Department of
Cultural Resources is not aware of any properties of architectural, historical, or archaeological
significance that would be affected by the project. North Carolina's Wildlife Resources
Commission (NCWRC) and the U.S. Fish and Wildlife Service (USFWS) evaluated the
proposed plan and expressed some concerns about the potential impact of secondary effects on
fish and wildlife resources. The important issues centered around the protection of floodplains,
forested riparian corridors, stormwater runoff, and endangered species. The city of Monroe
responded in a document (Mitigative Measures of Secondary Impacts) dated February 1, 2000
and has agreed (a) to continue to implement existing regulations and programs that reduce
adverse impacts associated with secondary developments and (b) to adopt additional mitigative
measures related to minimizing adverse actions that may result from secondary impacts. The
city of Monroe will provide NCWRC and USFWS an annual report indicating the status of the
mitigative measures to be implemented. The city of Monroe will also submit for information
purposes a copy of the annual status report to the Construction Grants and Loans Section of the
Division of Water Quality.
3

G. Public Participation, Sources Consulted
A public hearing was held June 15, 1999 on the proposed project to upgrade and expand the
wastewater treatment plant. No opposition to the plan has been presented, and a resolution was
adopted by the city council to implement the proposed project. A customer using 5,000 gallons
of water currently pays $15.41 per month for sewer service. The proposed project will result in
a typical customer paying approximately $17.53 per month for sewer service.
Sources consulted about this project for information or concurrence included:
1) City of Monroe
2) North Carolina Department of Environment and Natural Resources
-Water Quality Section
-Wildlife Resources Commission
-Division of Parks and Recreation
-Groundwater Section
-Division of Air Quality
-Division of Environmental Health
-Legislative and Intergovemmetnal Affairs
-Mooresville Regional Office
3) North Carolina Department of Cultural Resources
4) North Carolina State Clearinghouse
5) U.S. Fish and Wildlife Service
4

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MONROE VW TP
201 FACILITIES PLAN AMENDMENT
LOCATION MAP
WINGATE USGS QUAD

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
SECTION 1. APPLICATION AND FACILITY DESCRIPTION
Unless otherwise specified on this form all items are to be completed. If an item is not applicable indicate'NA'.
North Carolina NPDES Permit Number NC00 24333 (if known)
1. Applicant and facility producing discharge
This applies to the person, agency, firm, municipality, or any other entity that owns or is responsible for the permitted facility. This may or may not
be the same name as the facility or activity producing the discharge. Enter the name of the applicant as it is officially or legally referred to; do not
use colloquial names as a substitute for the official name.
Name of applicant / permittee:
Mailing address:
Street address P.O. Box 69
City of Monroe
City Monroe County Union
State North Carolina Zip Code 28111
Telephone Number ( 704 ) 282 4601
Fax Number ( 704 ) 283 6492
e-mail address rcolbath @monroenc.org
2. Mailing address of applicant's Authorized Agent / Representative:
Complete this section if an outside consulting firm/ engineering firm will act on behalf of the applicant / permittee
Engineer / Company name Hazen and Sawyer, P.C.
Street address 4011 WestChase Boulevard, Suite 500
City Raleigh
State North Carolina
Telephone Number
Fax Number
e-mail address
County Wake
Zip Code 27607
( 919 ) 833 7152
( 919 ) 8331828
[e-mail]
I certify that I am familiar with the information contained in this application and that to the best of my knowledge and belief such
information is true, complete, and accurate.
Russ Colbath
Water Resources Director
Printed Name of Person Si ping Title
d
Signature of Applicant or Authorized Agent
Date Application Signed
North Carolina General Statue 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or certification in any application,
record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that
Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21
or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $10,000, or by
imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine or not more than $10,000 or imprisonment not more than 5
years, or both, for a similar offense.)
Reports\30201-001\Standard Form A
1 of 4

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
3. Permitted Facility Location:
Give the physical location of the facility where discharge(s) presently occur(s) or will occur.
Street address 775 Treeway Drive
City
Monroe County Union
State North Carolina Zip Code 28110
Telephone Number
Fax Number
e-mail address
( 704 ) 282 4612
( 704 ) 283 6492
N/A
4. Municipalities or Areas Served (see instructions
Enter the names of the municipalities or areas served by this facility. For each municipality enter the best estimate of actual population served at
the time of this application.
Name of Community / Area
Actual Population Served
Monroe
23,684
Marshville
2,780
Wingate
3,026
Total Population Served
29,490
5. Average Daily Industrial Flow
Total estimated average daily flow from all industrial sources:
3.74 MGD
Total permitted monthly flow from all industrial sources: 4.896 MGD
Note: All Significant Industrial Users (as defined in Section III) discharging to the municipal system must be listed in Section III.
6. Facility Description
• Present Operating Status: Provide a narrative description of installed wastewater treatment components at the facility.
Include sizes & capacities for each component.
• Potential Facility Changes: Provide a narrative description of any planned upgrades / expansions / repairs planned for the
facility during the next five years. Do not include tasks associated with routine operation & maintenance.
• Schematic of wastewater flow: A line drawing of water flow through the facility must be attached to this application. The
schematic should show flow volumes at all points in the treatment process. Specific treatment components should be
identified.
• Location map: A map showing the location of each outfall must be attached to this application. The usual meridian arrow
showing north as well as the map scale must be shown. On all maps of rivers, the direction of the current is to be indicted by
an arrow. In tidal waters, the directions of the ebb and flow tides are to be shown. All outfalls should be identified with the
outfall number(s) used in Section II of this application. A copy of the relevant portion of a USGS topographic map is preferred.
All sheets should be approximately letter size with margins suitable for filing and binding. All pages should include facility location
and permit number (if available).
ttitttttttttttittTTTTTTTT
Reports130201.001\Standard Form A 2 of 4

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 11. BASIC DISCHARGE DESCRIPTION
Complete this section for each present (or proposed) discharge indicated in Section I.
All values for an existing discharge should be representative of the twelve previous months of operation.
(If this is a proposed discharge, values should reflect best engineering estimates.)
1. Facility Discharges, Number and Discharge Volume
Specify the number of discharges described in this application and the volume of water discharged or lost to each of the categories below.
Estimate average volume per day in MGD. Do not include intermittent discharges, overflows, bypasses or seasonal discharges from lagoons, etc.
Discharge To: Number of Discharge Points Total Volume Discharged (MGD) ,
Surface Water
1
7.16
Other (describe below)
.
TOTAL
1
7.16
If 'other' is specified, describe:
2. Outfall Number: 001
Assign a three -digit number beginning with 001 for the point of discharge covered by the first description. Discharge serial numbers should be
consecutive for each additional discharge described; hence, the second serial number should be 002 , the third 003, etc.
3. Discharge to End Date
If the discharge is scheduled to cease within the next 5 years, give the date (within best estimate) the discharge will end: N/A
Give the reason(s) for discontinuing this discharge in your cover letter.
4. Receiving Stream Name
Give the name of the waterway (at the point of discharge) by which it is usually designated on published maps of the area. If the discharge is to an
unnamed tributary, so state and give the name of the first body of water fed by that tributary which is named on the map, e.g., UT to McIntire Creek,
where McIntire Creek is the first water way that is named on the map and is reached by the discharge.
Richardson Creek
5. Outfall Structure
Describe the outfall structure and any significant changes since the last permit was issued (repairs, shoreline maintenance, etc.).
Cascade aeration structure. Cracks to structure have been repaired and sidewalls have been raised.
Reports130201-001\.Standard Form A
3of4

04/02/2000 22:31 FAX [phone] CITY OF MONROE OPS CTR a 005
Mar-30-00 11:13A Hazen and Sawyer 919 833 2556 P.05
NC DBNR / DWQ J NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows ? 1 MGD or with pretreatment programs
SECTION Ill. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
' Submit a separate Section 111 for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or amid have) significant impact on the POTW receiving tie wastewater or upon the quality of effluent from the receiving POTW.
Spedfically, an SIU:
• has a tt t of d0,000 gallons or mare per average wodcdar,
• has a flow greater than 5 percent of the total low carried by the municipal system m receiving the waste, or
• has a toxic material In its discharge.
It maybe necessary to alter these administrative criteria in certain uses, such as an Instance where two at more contributing industries in
combtnallon can produce en undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU S Ci 6 No.TAti►\ o e. 1. nc . G l"1 D v'1. brr
Street address 1)0 %go 31 1,
City lekont►o e. — County,
State
Telephone Number
• Fax Number
e-mail address
N C zip Code 28111
( lam )
aa�- sVI5
( goy ) 28601t
2 Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the fadllty. SIG categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
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swot c1.11/4di1C1
PI ink ai
k9Aic
ie
231
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3. Flow
Indicate the volume of weber discharged into the POTW and whether this discharge is intermitter! or continuous
• 0 15 MGD
Intermittent [i Continuous
4ar4

84/02/2000 22:31 FAX [phone] CITY OF MONROE OPS CTR Ii/J006
,Mar-30-00 11:13A Hazen and Sawyer 919 833 2559 P.O5
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION 1'O MUNICIPAL SYSTEM
-Submit a separate Section 111 for each Significant industrial User.
1, Significant Industrial User pSIU)
Ah Sitl has (or eouid have) significant impact an the POTW receiving the wastewater or upon the quality of etiluent from the receiving POTW.
Specifically, an SIU:
• has a now or 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the muntdpai system • m receiving the waste, or
• has a toxic material In its discharge.
It maybe necessary to alter these administrative +xiteria in certain cases, such es an instance where two or more contn'huting industries in
combination can produce an undesirable effect on either the municipal fealty or the quality al its effluent.
Name of Sit/ _ _ -Moors *�er5 r`` S tf
Street address 3C4O S'keei
City rlonro . County Vmen
State NC
Telephone Number
Fax Number
e-mall address
(19)
Zip Code 18111
2g'( — SSl`
( ) 2 S °1. M $ `i I
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement For each SIC category at the facility, sic categories should use the units of
measurement normally used by that industry.
P
law Material
Quantity.
Untie
Firiirk\ 44k\liri4
sLie dYa:
S11300
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i
3. Plow
Indicate the volume of water discharged into the POTW and whether thls discharge is intermittent or ciniinuous
•_11 a1_1 MGD
❑ intermittent. Er Continuous
40(4

04/02/2000 22:31 FAX [phone] CITY OF MONROE OPS CTR
Mar-30-0O 11:13A Hazen and Sawyer 919 833 2558
tI 007
p_os
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >,1 MOD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
• Submit a separate Section /l1 for each Significant Industrial User. .
1. Significant Industrial User (SIU)
An S1U has (or acid have) significant impact on the PO1W receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons cr more per average workday;
• has a flow greater than 5 percent et the total lbw carried by tha municipal system • m receiving the waste, or
• has a toxic material in its discharge.
It maybe necessary to alter these administrative criteria in certain cases, such as an instance where two a mare contributing industries in
oambinetion can produce an undesirable effect on either the munrclpai facility or the quality of its effluent-
. Nameof SIU C.bo. r\Ig 341c Fog ar7
Street address 42.10 CAA CAlarifiti e, hl i3111wa►y
City Merle O -„.County_ A IOn ,
State
NC, zip Code_ 18 111
Co,.
Telephone Number (�
Fax Number (•to'i ), _2 61% 3 2 '
e-mall address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the rnmdmum quantity per day produced or consumed.
Quanlihes ere to be reported In to units h=f measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that Indusby.
Product
Raw Material
QuantIy
Units
PVC p)Qt
_
1"ly fnar s
%aoao,0o0
e1 ,
-Absl
3. Flow
Indicate the volume of water discharged into the PO 1 W and whether this discharge is Intermittent or continuous
.031 MGD
❑ intermittent [ Continuous
4ef4

04/02/2000 22:31 FAX [phone] CITY OF MONROE OPS CTR
Mar-3O-0O 11:13A Hazen and Sawyer 919 833 2558
laj 008
P.05
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Murkicipat Facilities with permitted flows >1 MGD or with pretreatment programs
SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 111 for each Significant Industrial User. ,
1. Significant Industrlai User (SUJ)
An SIU has (or could have) significant Impad an the POTW receiving the wastewater or upon the quality of effluent from She receiving POTW_
Spec frcally, an SIU:
• has a Row of 50.000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the munlctpal system m receiving the waste, or
• has a toxic material m Rs discharge.
it may be necessary to alter these adm intstrative criteria in certain cases. such as en instants where two or more contributing industries in
combination can produce an undesirable effect on either the municipal fatuity or the quality of its (diluent.
•
Name of SIU Caepei t n A u s r t c. S
Street address 3ot� in qSaShot
City
State
elonfbG County • _ un iofb
NC
Zip Code_ 2.811 i
Telephone Number (7bM ) X8'+' S'I 16
Fax Number ('W42t 6
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported In the units of measurement for each SiC category at the fadiity. SIC categories should use the units of
measurement normally used by that industry_
Product
Raw Material
uarthy
Units_
_
Ilan 4061 S
Sic..f.1
41b,oaa
164/12/
3. Flow
Indicate the volume of water discharged Into the POTW and whether this discharge is Intermittent or continuous
El lntemittent 121 Continuous
0 5 MGD
40►4

04/02/2000 22:31 FAX [phone] CITY OF MONROE OPS CTR IJ 009
Mar-30—O0 11:13A Hazen and Sawyer 919 833 2558 P.os
•
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows ?1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
•
Submit a separate Section 111 for each Significant industrial User.
1. Significant industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of elfivant from the receiving POTW.
5pecf1 ccatly, an SIU:
• has 4 flow of 50,000 gallons or more per average workday;
• has a flow greater than Spawn! of the total flow carried by the municipal system m receiving the waste, er
• has a toxic material to its discharge.
It maybe necessary to alter these administrative criteria In certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect an either the munldpal facility er the quality of its diluent.
Name of sit) G.A. G ouk Ake, Co, n
Street address 9 0 b Na ,e4/-1_11n S1s► S+re,,
City Munroe County.
Oil* e n
State _ I` Zip Code 28111
Telephone Number
Fax Number
e-mail address
( ') M ),- -- lei- 6i bM
( goy ) 296- 61-Itt
2. Primary Product or Raw Material
Specify after the principal product or the principal raw material and the maunum quantity per day produced or consumed.
QuanUlles are to be reported in the units of measurement for each SIC category at the fsdlity. SIC categories should use the units of
measurement normally used by that industry.
Product _
Raw Material
Quantity,
Units
L to 1 %Ale i thr%t S
_
_ t,\lcm. c..\ $ (bwiic
9' OM
4015/44
__
3. Mow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
'At MGD
0 Intermittent Er Continuous
4ar4

64/02/2000 22:32 FAX [phone] CITY OF MONROE OPS CTR
. Mar-30—O0 11:13A Hazen and Sawyer 919 833 2558
oio
P.05
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >1 MOD or with pretreatment programs
SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section !!! for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SiU hes (or could have) significant impact on the POIW receiving the wastewater or upon the quality or effluent from the receiving POTW.
Specifically, an SIU:
• has a Row of 60,000 gallons or more per average workday:
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
Il may be necessary to alter these administrative criteria in certain cases, such as an rnsiance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of 5lu Geld 5�rseriu�e _ good S LL G
Street address %l o% S iw p off+ _ S c C
City 14wif o County. U neon
State C Ip Code 1! 1 i o
Telephone Number ( joy) 2 3 i• 5661
Fax Number (?ey ) 8$3' 162.3
e-mail address
2. PritnaryProduct or Raw Material
Specify either the principal product or the principal raw material end the maximum quantity per day produced or consumed.
Quantities are to be reported to the units of measurement For each MC category et the reality. SIC categories should use the units of
measurement normally used by that industry.
Prcduct
Raw Material_ __
Quantity
Units
$4c1 ?ovIkel
6/11t12CA
51,1100
%sicia%
3. Flow
Indicate the volume of water discharged Into the POTW and whether this discharge is intermittent or continuous
• 1 3 MGD
Q intermittent d Continuous
4a1as

t4/02/2000 22:32 FAX [phone] CITY OF MONROE OPS CTR
Mar-30-O0 11:13A Hazen and Sawyer 919 833 2558
0 on
P.05
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
' • Submit a separate Section 111 for each Significant Industrial User.
r
1, Significant Industrial User (81U)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent horn the receiving POTW.
Specifically. an Sill
• has a lbw of 50,000 gallons or more per average workday; •
• has a flow greater than 5 perc nt of the toted flow carried by the municipal system m receiving the waste, or
• has a toxic material In Its discharge.
It 'tray be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
oombtnatton can produce an undesirable effect on either the municipal fadtty or the quality of its effluent.
Name of SIU Lb. 'Davis _14.., in t
Street address 2:031 E4 $4 1Zoa Sc vc Ct 161
City or►f 6G County__ Union
State _ Zip Code _ 28112,
Telephone Number (/oi ) 2$ it - 'IS S 1 _ _ _ __
Fax Number (10'1 ) 21i. 48 O'i
e-mail address
2 Primary Product or Raw Materiel
Specify either the principal product or the principal raw materiel and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by bat Industry.
Product
Raw Material
Quantity
Units
\m g ��\i \'anc�;n)
�•/L
_
o hAnM.►.\ vti,* e.,n S
76, 'Ieo
tIs I a
_
_
3. Plow
Indicate the volume of water discharged into the POTW end whether this discharge is intermittent or contlnuoue
. oo 13 MGD
dintermittent [] Continuous
4ofd

4/02/2000 22:32 FAX [phone] CITY OF MONROE OPS CTR
Mar-30—O0 11:13A Hazen and sawyer 919 833 2558
� 012
P . 05
NC DENR / DV/4 / !IPDES PERMIT APPLICATION - STANDARD FORM A
, Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section Ill for each Significant Industrial User,
I. Significant Industrial User (SUV)
An Stu has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically. an SIU:
• has a flow of 50,oao gallons or more per average workday,
• has a Bow greater than 5 percent al the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal faciflty or the quality ar its effluent.
Name of SW Or Plano -co,t: vrT_4_Go,) Jni .
Street address St 4 4 Sliceoil
City Moor o c County • .1.11on
_ w
State NC Zip Code 2.8111
Telephone Number (?D'; )� L S 3- Lill
Fax Number ( -toy ) ,-81$- C261
e-mail address
2 Primary Product or Raw Material
Specify either the princtpai product or the principal raw materiel and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category et the facility. sic categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Th lase 4A ��1.4ItAcie.1
IAVIft
Quantity
0
Units
Ls Jo.
3. Flow
indicate the volume of water discharged into the POTW and whether this discharge is Intermittent or continuous
*OCAS MGD
[ f rnlemitttent [] Continuous
4 of 4

4/02/2000 22:32 FAX [phone] CITY OF MONROE OPS CTR
Mar-30—O0 11:13A Hazen and Sawyer 919 833 255$
Iaj 013
P.O5 •
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows ?1 MGD or with pretreatment programs
SECTION 11l. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
' Submit a separate Section 111 for each Significant industrial User.
1. Significant Industrial User (91U)
An SW hes (or could have) significant impact on the PQTW receiving the wastewater cr upon the quaky of effluent from the receiving KQTW.
Spedlically, an SW:
• has 4 flow of 50.000 gallons or mare pur average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, a
• has a toxic malarial In its discharge.
it maybe necessary to alter these administrative criteria In cert& cases, such as an instance where two or more oentrbuling industries in
combination can produce an undestrable effect on either the mumclpel facihly or the qualify elite effluent.
Name of SIU 5vJOr) Sorb eArrnel-01• ti
Street address 32 0 lorooe*1
City
State
Telephone Number
Fax Number
e-mail address
rflontoc,
NC
County Vt►ion
Zip Code 28
(1 M ). __291- Is S 61
( 'I4`'1 )-- _212" /olio
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility_ SIC categories should use the units of
measurement normally used by that industry.
,.Prow
- Raw Material
Quantity
-- Vas-
_ sie,G1) IInk SS GepPcr
3, o'19
16/cla7
, ,
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is Intermittent or continuous
9OQ'3 moo
[s Intermittent ❑ Continuous
4at4

'`14/02/2000 22:32 FAX [phone] CITY OF MONROE OPS CTR
Mar-30-00 11:13A Hazen and Sawyer 919 833 2558
0 014
P-OS
NC DENR / DWQ / NPDES PERMIT APPLICATION STANDARD FORM A
Municipal Facilities with perrnitted flows > 1 MGD or with pretreatment programs
SECTION Ili- INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL. SYSTEM
• • • Submit a separate Section 111 for each Significant Industrial User. ,
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impel on the POTW receiving the wastewater or upon the quality or etAuent from the receiving POTW.
Specifically. an MU:
• has 4 Row of 60,000 gallons or more par average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system • m receiving the waste, or
• has a twciic material In its discharge.
It may be necessary to alter these administrative criteria In certain cases, such as an Instance where two or more contributing industries in
eombinatfon can produce an undesirable effect an either the municipal facility or the quality of Ifs effluent.
Name ofne 4I1voIC
Street address 2.0 ?�� A s1 cro 1 /vend c
City,
State
In 'elm County,_ Uhion
NC Zip Code 28111
Telephone Number ( ?off % 2 gi - 4511
Fax Number (104 ) 282 - I S 39
e-mail address
2 Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that Industry.
Product
Raw Material
T�n4 T i40,isso *1 _flic\LL. \u1K +A•or tur" r,;461
Quantity
30'k Po
Units
3. Flow
Indicate the volume of water cfischarged into the POTW and whether this discharge is intermittent or continuous
MGD [] Intermittent E Continuous
4 aI 4

04/02/2000 22:32 FAX [phone] CITY OF MONROE OPS CTR
• •Mar-30-00 11:13A Hazen and Sawyer 919 833 2558
015
P.05
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >1 MGD or with pretreatment programs
SECTION 11I. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
• Submit a separate Section 111 for each Significant Industrial User.
.18
1. Significant Industrial User (SIU)
An SIU has (or wtid have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Spedffcally, an SIU:
• has a flow al 50.000 gallons or more per average workday;
• has a flaw greater than 5 percent of the total tIow carried by the muntdpal system m receiving the waste, or
▪ has a toxic material In its discharge.
It maybe necessary to alter these administrative aileria in certain uses, such as an instance where two er more contributing industries In
combination can produce an undesirable effect on either the municipal facility ar the quality of its effluent.
Name ofSlU II ion Foods Inc.
Street address 7 2 3 44 A lif Mtge*
City Monrot County • On toil
State _ _ MC _ Zip Code 2.13111 _
Telephone Number
Fax Number
e-mail address
S3� l)5r)
a' d 'i 1 l o
2. Primary Product or Raw Material
Specify either the principal product or the principal raw materiel and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. sic categories should use the units of
measurement normally used by that industry.
_Product
Raw Material
Quan*tty
Unity
par\4•,e.
Orli t:N.ifl
Vivo
G' i Alen S
o0e
1 si dry
.
_ ,.,lits0.
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
❑ Intermittent [l Contnuous
I•l 0 MGD
4af4

.04/02/2000 22:33 FAX [phone] CITY OF MONROE OPS CTR
Mar-30—O0 11:13A Hazen and sawyer
919 833 2558
ICJ o 16
p_05
NC DENR / DWQ / NPDES PERMIT APPLICATION , STANDARD FORM A
Municipal Facilities with permitted flows } 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL. SYSTEM
• Submit a separate Section 111 for each Significant industrial User,
1, Significant industrial User (SIU)
An SIU has (ar could have) significant Impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Spedficalty, an SIU:
• has 4 flow of 50,000 gallons or more per avermge•workday;
• has a now greater than 5 punt of the total flow carted by the mimtdpal system m receiving the waste, ar
• has a toxic material in Its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries to
combination can produce an undesirable effect an either the municipal tacitly or the quality of Hs effluent
Name of SIU� _ Un lor1 lac,Soncit !' !c i ca` `en+w-
Street address 6� o s '•ia� 'Det v r`
City frInfibt _ County Uri i Ol
State_ N t
Telephone Number
Fax Number
e-mail address
Zip Code 18112.
troy ) 2g3.3100
(101 ) l i b• 41110
2 Primary Product or RaW Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced ar consumed.
Quantities are to be repotted in the units of measurement for each SIC category at the tacihty. SIC categories should use the units of
measurement normally used by that Industry.
Product
Raw Material
Quan*
Units
R4aMh-i
ptovlc
S %AL ._e1;\ C
__
1'0 ‘z46k3
_ _
•
•
•
3. Flow .
Indicate the volume of water discharged into the POTW and whether thls discharge is Intermittent or continuous
•08 a MOD
❑ intermittent Er Continuous
4 of 4

04/02/2000 22:33 FAX [phone] CITY OF MONROE OPS CTR
Mar-30—O0 11:13A Hazen and sawyer 919 833 2558
I017
P.05
NC DENR % DWQ f NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
• Submit a separate Section Ill for each Significant industrial User. ,
1, Significant industrial User (51U)
An SIU has (or could have) signnicant Impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specially, an Sill
• has allow or 60,000 gallons Cr mcre per average workday',
• has a Row greater thane percent of the total flow carried by the mtmidpal system • m receiving the waste, or
• has a toxic material In Its discharge.
it may be necessary to alter these administrative criteria in certain cases. such as an instance where Iwo or more contributing Industries in
combination can produce an undesiratde effect on either the munidpal fealty or the quality of Its effluent.
Name of SIU Van'w4f4 Svpccin
Street address (° fnac A for C', rc\c
City j"tionroc County• VA Imn
State — NC. Zip Code ,2 110
Telephone Number
Fax Number
e-mail address
( 104{ ) 281 - 1
( 104 )• 12 5 rI
z. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
P
Raw Material
Quantity _
Unfs
✓
I6rt411c
--
tr1a 1,11AC.,3
tsl Lijsl
Gorip4A&n`S
6.1z%
toa/adz
3. Flow
Indicate the volume of water discharged Into the POTW and whether this discharge Is intermittent or continuous
000 5 MGD
Er intermittent ❑ conunuous
4014

`04/02/2000 22:33 FAX [phone] CITY OF MONROE OPS CTR
,. / ar-30-00 11 : 13A Hazen and Sawyer 919 833 2558
i J018
P.05
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows } 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
• Submit a separate Section 11! for each Significant industrial User.
1, Significant Industrial User (SIU)
An SlU has (or could have) significant impact on the POTW receiving the wastewater or upon tha quality of eliluenlfrom the receiving POTW.
Spedpcaliy, an Sill:
• has a liow of 50,000 gallons or more per average workday; �� m receiving the waste, ar
• has a flow greater than 3 percent of the total tow carried !wilts municipal sy
• has a toxic material in its discharge.
It may be necessary to alter these administrative aiteria in certahr cases, such as an instance where two or more r iributing industries in
combination can produce an undesirable effect on either the morddpat Iedflty or the quality of its effluent.
Name of SW W A \cir L onp. yc _Inc .
Street address w;WI 1:1'+w1b'i— 6gs
a� r
City Max Mi� G County VArO
State C, Zip Code 9 8 t C�
Telephone Number
Fax Number
e-mail address
( 104 ) 62 — 1r11
(10'i) b2`'t' G `'IS
2. Primary Product or Raw Material
Specify either the principal product ar the principal taw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category et the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
deic ai i% c\ct,
Raw Material
ire c*1 i c1t �t1
Quantity
Silo , too
Units
1bsJ ae..
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent ear continuous
• ri MGD
[] intermittent 121 Continuous
4114

•04/02/2000 22:33 FAX [phone] CITY OF MONROE OPS CTR a019
Mar-30-O0 11:13A Hazen and Sawyer 919 833 2558 P.05
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted [lows ,•1 MOD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL. SYSTEM
• ' Submit a separate Section 111 for each Significant industrial User.
1. Significant industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specitttally, an SiU:
• has g flow of 50,000 gallons or mom pet average workday;
• has a flaw greater than 5 percent of the total flaw carried by the municipal system m receiving the waste, ar
• has a toxic material 1n Its discharge.
It maybe necessary to alter these (administrative criteria in certain cases. such as an instance where two or mare contributing industries in
combination can produce en undeshable effect an either the mfunidpai facifty or the quality of lis effluent.
Name of SIU YOAt Se.‘vPIA I n
Street address _ 3000 ; )1wwy ? 4 g,st.
City M o» fo t County •
State N G _ __,Zfp Code Z 3 M.
Telephone Number
Fax Number
e-mail address
t 701 ). - 233 - 'oti
(ZOM ) 231- 50S3
2. Primary Product or Raw Material
Specify either the prindpal product or the prfndpat raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Unite
d ot, Aos'irc S
s3tc.t.1
SI, 6 q%
V s14Ay
__
3. F1ow
Indicate the volume of water discharged Into the POTW and whether this discharge is intermittent or continuous
.00A5 moo
tntermlttent ❑ Cont[nuous
4 of 4

04/05/00 10:36am FILE= H:\30201\FIGURES\30201-004 by CRAY XREFs=00\Sp—sc—an.dwg,
COUNTY FLOW
METER (1)
- 8.87 MGD
1
INFLUENT
PUMPING
STATIONS (2)
0.87 MGD
FLOW
EQUALIZATION
BASINS
(2)
FILTER BACKWASH RETURN
FINE
al SCREENS
(2)
PARSHALL
FLUMES
(2)
CENTRATE
AERATION BASIN
SPLITTER BOX
AERATION AERATION
BASINS ■ BASINS
(2) (5)
I
L----,
I
I
L
r
1
1
I
1
FILTRATE
WASTE
FROM
SEPTAGE
HAULERS
— ,I
1
SEPTAGE
RECEIVING
STATION
I
6-
i____
_i
HAZENAND Sic
Environmental Engineers & Scientists
I
J
F
WAS
RAS
AERATION BASIN
SPLITTER BOX
RAS PUMPING
STATIONS
(3)
CENTRIFUGES
(BACKUP)
L----1
1 SAND
DRYING
T BEDS
(BACKUP)
LIME
1
I
TRUCK 1
LOADING di
PUMP
LAND
APPUCATION
1
1
I
J
LAND
APPLICATION
TERTIARY
FILTERS
(6)
LEGEND
D PUMPS
WASTEWATER FLOW
— — — SOLIDS FLOW
f9.74 MGD
FILTER
BACKWASH
ii
BACKWASH
SUPPLY
TANK
ULTRAVIOLET
DISINFECTION
FACILITIES
9.74 MGD
FLOW
MEASUREMENT
CASCADE
AERATION
EFFLUENT TO
RICHARDSON CREEK
NPW
MONROE WASTEWATER TREATMENT PLANT
MONROE, NORTH CAROLINA
NPDES PERMIT NO. NC0024333
12.5 MGD DESIGN CAPACITY
PROCESS FLOW SCHEMATIC

FACILITY DESCRIPTION
1.0 PRESENT OPERATING STATUS
1.1 Liquid Treatment Facilities
Influent Pump Stations
Raw wastewater enters the two influent pump stations from the 54-inch and 30-inch
Richardson Creek interceptors. Pump Station No. 1 includes four influent pumps, two
variable speed pumps and two constant speed pumps, each with a capacity of 3.5 mgd.
Pump Station No. 2 includes two variable speed pumps, with space for two additional
pumps. Each of the two pumps has a capacity of 6.5 mgd. The firm capacity of the
combined stations is 20.5 mgd, including five pumps operating together and one of the
larger 6.5 mgd pumps out of service. Influent flow is measured through four magnetic flow
meters, one on each of the three parallel discharge force mains from the influent pump
stations and the fourth on the Union County East Side force main carrying flow from an off -
site Union County pump station.
Preliminary Treatment Facilities
Raw wastewater from the three force mains from the influent pump stations and the County
force main is combined before flowing to the Screening Building.
Incoming wastewater flows through the two rotary screens, which remove solids which will
not pass through the 0.06-inch screen openings. Rotation of the cylindrical screens directs
the captured screenings to screw conveyors, which then carry the solids to the screenings
dumpster. Screenings are disposed of at the BFI Landfill in Charlotte, NC.
Flow Equalization Basin
Screened effluent is conveyed by gravity from hoppers under the Screening Building to the
aeration basin splitter box. Piping is also provided to convey excess flow to a separate
splitter box with weir level control to convey the excess flow to the flow equalization basin.
The flow equalization basin may be filled and emptied under several control strategies,
Monroe WWTP NPDES Permit No. NC0024333 1 HAZENAND SAWYER
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including equalizing diurnal flows, equalizing weekend vs. weekday flows, equalizing wet
weather flows, or equalizing dry weather flows to equalize diurnal organic demands on the
aeration basins. A flow equalization pump station on the west end of the equalization basin
returns flows to the aeration basin splitter box during low flow periods. In addition to
equalization, the basin receives filter backwash wastewater from the filter backwash waste
pumps at the tertiary filters.
Aeration Basins
Screened wastewater, including return flows from the flow equalization basin, is distributed
to five aeration basins through the aeration basin splitter box. Aeration Basins No. 1
through 4 each have a volume of 0.86 million gallons, and Aeration Basin No. 5 has a
volume of 1.29 million gallons. The total aeration basin volume is 4.74 million gallons,
which provides a detention time of 12.6 hours at the plant design capacity of 9.0 mgd.
Aeration basin effluent flows into effluent boxes and is then conveyed to a secondary
clarifier distribution box.
Airflow to the aeration basins is provided by three blowers in the Blower Building. Two
drop legs in each basin convey the airflow to fine bubble diffusers mounted on the floor of
the basin. Aeration Basins No. 1 through 4 each have 1,060 diffusers and Aeration Basin
No. 5 has 1,610 diffusers.
Secondary Clarifiers
Four secondary clarifiers are provided for settling of the activated sludge. The four
clarifiers are operated in two parallel trains, with two clarifiers in each train. Each clarifier
is of the center feed, peripheral overflow -type, with suction -type solids collection and
removal.
Return Activated Sludge Pumping Stations
Two return activated sludge (RAS) pumping stations are provided, one for each pair of
secondary clarifiers. The pump stations convey settled solids and scum from the secondary
Monroe WWTP
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Reports130201.0011Monroe Facility Description Environmental Engineers & Scientists

clarifiers to the aeration basin splitter box. Each station includes three pumps, which may
be operated continuously or intermittently based on timers. The two RAS pump stations
have a combined firm pumping capacity of 11.75 mgd, or approximately 131 percent of
plant design flow. The RAS pump stations are also used for wasting activated sludge to
the aerobic digesters through manually -operated valves on the RAS and WAS piping.
Tertiary Filters
Six dual media tertiary filters with air scour are provided for final effluent polishing following
the secondary clarifiers. Each filter has a total media depth of 36 inches, and is 24 feet
long by 20 feet wide. At the plant design flow of 9 mgd, the filters have a hydraulic loading
rate of 2.17 gpm/ft2. Filter backwash is pumped from the influent end of the chlorine
contact tanks by two filter backwash supply pumps. Two separate vertical turbine filter
backwash waste pumps are used to convey filter backwash wastewater to the flow
equalization basin for return at a controlled rate to the aeration basin splitter box.
Chlorination Facilities
Chlorination facilities are located in the Chlorine Building and consist of two wall -mounted
chlorinators, each with a capacity of 500 pounds per day. A covered storage area next to
the building has space for ten chlorine ton containers, four of which can be connected to
a chlorine manifold. A vacuum regulator is provided at the end of the manifold to control
vacuum feed to the chlorinators. No scales are provided for the ton containers. The duty
chlorinator is flow -paced and conveys chlorine gas at a controlled rate to an injector, where
the chlorine is mixed with water and then conveyed as chlorine solution to the chlorine
contact tanks.
Filtered effluent enters the chlorine contact tanks through a 30-inch pipeline to an influent
chamber that serves as a wet well for the filter backwash supply pumps and as the chlorine
feed point. Chlorinated wastewater flows through the two parallel contact tanks, which
have a total volume of approximately 0.22 million gallons. The detention time in the
contact tanks is approximately 36 minutes at the plant design flow of 9.0 mgd.
Monroe WWTP HAZENAND Permit No. NC0024333 3 HAZENAND SAYER
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Dechlorination Facilities
Dechlorination facilities are located in the Sulfur Dioxide Building. One room in the building
contains the sulfur dioxide cylinders and two wall -mounted vacuum regulators. A second
room contains two wall -mounted sulfonators, each with a capacity of 200 pounds per day,
and two sulfur dioxide injectors. Space is provided for eight 150-pound sulfur dioxide
cylinders connected to a pair of manifolds, four connected to each manifold and vacuum
regulator, and additional storage for empty or full containers. The two regulators are
connected by an automatic switchover device to automatically alternate the sulfur dioxide
supply. Sulfur dioxide solution is mixed with the plant effluent flow at the chlorine contact
tank effluent box. The plant effluent flow is discharged to the effluent box over a
rectangular weir at the effluent end of each contact tank.
Plant Effluent Discharge
The plant effluent flow rate is measured by a rectangular weir located in a box downstream
of the chlorine contact tanks. An effluent flow -proportional composite sample is taken in
the effluent pipeline immediately upstream of the cascade aeration flume. The cascade
aeration flume assures that the dissolved oxygen concentration in the effluent discharged
to Richardson Creek meets or exceeds the requirements of the plant's NPDES permit.
1.2 Solids Handling Facilities
Solids treatment and disposal facilities consist of aerobic digestion for stabilization of waste
activated sludge, centrifuges for solids thickening or dewatering, and storage of liquid
sludge prior to contract land application as a liquid on privately -owned farmland. Solids
storage is provided in the aerobic digesters/storage tanks. The solids storage lagoon
formerly used for solids storage is no longer in service. Sand drying beds are available for
backup dewatering and dewatered cake storage.
Aerobic Digesters/Thickeners/Storage Tanks
Five aerobic digesters/thickeners/storage tanks are provided for thickening, stabilization,
and storage of waste activated sludge. The aerobic digesters provide stabilization and
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volume reduction by destruction of volatile solids and decanting. Decant water is conveyed
by gravity to Influent Pump Station No. 1 for return to the liquid treatment process.
Waste activated sludge is pumped from the RAS pump stations to Digesters No. 3 and 4,
which are currently being used for thickening. Solids concentrations as high as 6 to 8
percent are achieved in Digesters No. 3 and 4 by decanting. Thickened solids from
Digesters No. '3 and 4 are conveyed to the centrifuges and Digester/Storage Tanks No. 1,
2 and 5 for additional stabilization and solids concentration.
Aerobic Digester/Storage Tank No. 1 has a diameter of 80 feet and a volume of 0.49
million gallons. Digester/Storage Tank No. 2 has a diameter of 115 feet and a volume of
1.15 million gallons. Digester/Thickeners No. 3 and 4 each have a diameter of 65 feet and
a volume of 0.25 million gallons. Digester/Storage Tank No. 5 has a diameter of 140 feet
and a volume of 3.0 million gallons. The total volume of all digesters is approximately 5.14
million gallons.
Except for Digester/Storage Tank No. 5, the aerobic digesters/thickeners/storage tanks are
mixed and aerated using surface mechanical aerators, supplemented in Digester/Storage
Tanks No. 1 and 2 by surface mixers. Digester/Storage Tank No. 1 has one 40-HP and
two 7.5-HP mixers and two 7.5-HP aerators. Digester/Storage Tank No. 2 has three 40-HP
aerators. Digester/Storage Tanks No. 3 and 4 each have one 30-HP aerator. Two 200-HP
blowers and a diffused air aeration system are provided in Digester/Storage Tank No. 5.
Piping interconnections allow several treatment schemes. Normally, waste activated
sludge is first conveyed to either Digester/Thickener No. 3 or No. 4, where most of the
thickening takes place. Thickened solids are conveyed to Digester/Storage Tanks No. 1
and 2, thickened on the centrifuges and stored in Digester/Storage Tank No. 5. Thickened
solids can also be conveyed directly to the centrifuges and then stored in Digester/Storage
Tanks No. 1, 2, and 5. Digester/Storage Tank No. 1 also has facilities for adding lime to
provide additional solids stabilization, if needed.
Monroe WWTP
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•
Centrifuges
Two centrifuges are provided for thickening or dewatering of digested solids. The
centrifuges each have a hydraulic capacity of 90 gpm and, with cationic polymer
conditioning, produce a dewatered cake with a solids concentration of approximately 15
percent. The dewatered cake is currently blended with digested solids from
Digester/Storage Tanks No. 1 and 2 and pumped at a solids concentration of up to
6 percent to Digester/Storage Tank No. 5 for storage prior to land application. Centrate
is returned by gravity to Influent Pump Station No. 1. Each centrifuge is fed by a centrifuge
feed pump. Polymer storage, mixing and aging is provided for either liquid or dry polymer.
Sludge Disposal
A truck loading station is provided to pump digested solids to land application trucks from
any one of Digester/Storage Tanks No. 1, 2, or 5. Sludge hauling and land application is
by contract.
Sand Drying Beds
Ten sand drying beds are provided for backup dewatered cake storage or for backup
dewatering. The sand drying beds are each 120 feet long by 20 feet wide, for a total area
of 24,000 ft2. Solids removed from the drying beds are also disposed of by land
application. Two vacuum drying beds at the plant are no longer in use.
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0
Table 1-1
Design Data
Existing Facilities
9 mgd Design Capacity
Influent Pump Stations*
Pump Station No. 1
Number of pumps
Type
Capacity of each pump, mgd
Type of drive
Pump Station No. 2
Number of pumps
Type
Design capacity of each pump, mgd
Type of drive
Total firm capacity (both stations), mgd
Influent Flow Measurement
Method of flow measurement
Number
Size, inches
Rotary Screens
Number
Screen openings, inches
Capacity of each screen, mgd
Firm capacity, mgd
4
Centrifugal, non -clog
3.5
Constant speed (2),
variable speed (2)
2
Centrifugal, non -clog
6.5
Variable speed
20.5
Magnetic flow meter
4
1 @ 8 (Union County)
1 @ 14
1 @ 16
1 @ 18
2
0.06
9
9
* The influent pump stations pump the wastewater from the City of Monroe only. Flow
from Union County enters the plant directly upstream of the Screening Building.
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Table 1-1 (Continued)
Flow Equalization Basin
Number of basins
Dimensions at water surface
Length, ft.
Width, ft.
Average depth, ft.
Side slope, horizontal to vertical
Volume, mil. gal
Flow Equalization Pump Station
Number of pumps
Type
Capacity, each, mgd
Type of drive
Aeration Basins
Number
Dimensions
Length, ft.
Width, ft.
Sidewater depth, ft.
Volume, each basin, mil. gal.
Total volume, mil. gal.
Detention time at design flow, hours
Aeration System
Type
Type of diffusers
Number of diffusers per basin
Total number of diffusers
Blowers
Number
Capacity of each blower, scfm
Firm capacity, scfm
1
579
194
9
3:1
6.3
2
Submersible
3.5
Constant speed
5
120
4 @ 60
1 @ 90
16
4 @ 0.86
1 @ 1.29
4.74
12.6
Fine bubble diffused air
Membrane
4 @ 1,060
1 @ 1,610
5,850
3
7,885
15,770
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NPDES Permit No. NC0024333
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Table 1-1 (Continued)
Secondary Clarifiers
Number 4
Diameter, ft. 85
Sidewater depth, ft. 12
Total volume, mil. gal. 2.04
Total surface area, ft.2 22,700
Overflow rate at design flow, gpd/ft.2 395
Return Activated Sludge Pumping Stations No. 1 and 2
Number of pumps, each station 3
Type Horizontal, centrifugal, non -clog, self
priming
Capacity of each pump, gpm (mgd) 1,630 (2.35)
Total firm capacity, mgd 11.75
Type of drive Constant speed motor, adjustable
sheaves
Tertiary Filters
Number 6
Type Dual media, w/ air scour
Dimensions of each filter
Length, ft. 24
Width, ft. 20
Depth of media
Anthracite, in. 24
Sand, in. 12
Gravel, in. 18
Total surface area, ft.2 2,880
Filtration rate at design flow, gpm/ft.2 2.17
Backwash Supply Pumps
Number 2
Capacity of each pump, mgd 14.1
Backwash Waste Pumps (to Flow Equalization Basin)
Number 2
Capacity of each pump, mgd 13.8
Monroe WWTP
NPDES Permit No. NC0024333
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Environmental Engineers & Scientists

Table 1-1 (Continued)
Chlorine Feed Facilities
Total ton container inventory capacity
(including containers on manifolds) 10
Number of ton containers on manifolds 4
Normal withdrawal of chlorine Gas
Number of chlorinators 2
Capacity, each, lb./day 500
Sulfur Dioxide Feed Facilities
Total 150-Ib. cylinder inventory capacity
(including cylinders on manifolds) 28
Number of 150-Ib. cylinders on manifolds 8
Number of scales 1
Number of cylinders on scale 2
Normal withdrawal of sulfur dioxide Gas
Number of sulfonators 2
Capacity, each, lb./day 200
Chlorine Contact Tanks
Number 2
Total volume, gal. 222,470
Detention time at design flow, min. 36
Post Aeration
Type Cascade
Aerobic Digesters/Thickeners/Storage Tanks
Number 5
Dimensions of each digester
Diameter, ft. 2 @ 65
1 @ 80
1@115
1 @ 140
Volume of each digester, mil. gal. 2 @ 0.25
1@ 0.49
1@ 1.15
1@ 3.00
Total volume, mil. gal. 5.14
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Table 1-1 (Continued)
Aerobic Digesters/Thickeners/Storage Tanks (Continued)
Aeration and Mixing Systems — Digesters No. 1 thr
Type
Digester/Storage Tank No. 1
Aerators
Mixers
Digester/Storage Tank No. 2
Aerators
Digester/Thickeners No. 3 and 4
Aerators
Aeration System — Digester/Storage Tank No. 5
Aeration System
Manufacturer
Type
Number of diffusers
Blowers
Number
Type
Capacity, each, scfm
Horsepower
Centrifuge Dewaterina Facilities
Number of centrifuges
Capacity, each, gpm (2% solids)
Sand Drying Beds (Backup)
Number
Dimensions of each bed
Length, ft.
Width, ft.
Total surface area, ft.2
Vacuum Drying Beds (Not in Service)
Number
Dimensions
Length, ft.
Width, ft.
Total surface area, ft. 2
ough 4
Mechanical, floating
2@7.5HP
1@ 40 HP, 2@ 7.5 HP
3@ 40 HP
1 each @ 30 HP
Sanitaire
Fine bubble membrane
2,664
2
Positive displacement
2,000
200
2
90
10
120
20
24,000
2
40
20
1,600
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Environmental Engineers & Scientists

2.0 PLANNED FACILITY CHANGES
Recommended facilities for the proposed expansion of the Monroe WWTP to a design
capacity of 12.5 mgd are as follows:
• Modification of two of the existing influent pumps and four (4) new 5.8 mgd influent
pumps. The two existing influent pumps would be modified to provide a capacity
for each pump of 8.6 mgd and to allow them to pump to the higher elevation of the
new screening facility. The existing and new pumps would operate in parallel to
provide sufficient pumping capacity for a 3.0 peaking factor for the 12.5 mgd flow
capacity.
• A new 42-inch force main to convey the influent wastewater from the existing
screening facility to the new screening facility. The force main will have adequate
capacity for peak flows associated with the increased flow capacity.
• Construction of a new screening facility with two (2) new fine screens to allow gravity
flow to the new aeration basin. The new fine screens would each have a peak flow
capacity of 22.5 mgd, and one manual bypass screen would be provided. A
screenings compactor would also be provided for each fine screen. A Parshall
flume will be provided downstream of each screen for influent flow measurement.
• Construction of a new flow equalization basin to provide increased flow equalization
capacity for the expanded plant flow. The new basin will have a volume of
approximately 4.0 million gallons and will overflow into the existing flow equalization
basin.
• Construction of two new aeration basins to operate in series with the existing
aeration basins. The new basins will each have a volume of 1.35 million gallons,
for a total volume including the existing aeration basins of 7.45 million gallons, and
a detention time of 14.3 hours at the plant design flow of 12.5 mgd.
• Modifications to the existing aeration basin effluent boxes and effluent piping to
provide positive flow distribution to the proposed six (6) secondary clarifiers at peak
Monroe WWTP
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flows. The existing plant experiences flow distribution problems including
submerged weirs during peak flows, adversely affecting clarifier settling
performance. The proposed facilities include new aeration basin effluent boxes,
piping and valves between the existing aeration basins and the secondary clarifiers.
• A fourth blower to be added in the existing Blower Building to increase the firm
blower capacity to approximately 24,000 scfm.
• Conversion of existing Digesters No. 3 and 4 to secondary clarifiers to operate in
parallel with the existing secondary clarifiers to provide a surface overflow rate of
430 gpd/ft.2 at the plant design flow of 12.5 mgd. New return activated sludge
pumps would be provided in the existing building between the two converted
clarifiers. The new pumps will be provided with variable frequency drives to allow
variation of RAS flow rates. RAS pump modifications would also be provided for
RAS Pump Stations No. 1 and 2 for the higher head associated with pumping to the
new aeration basins. New variable frequency drives will be provided for the existing
pumps.
• New ultraviolet disinfection facilities to replace the existing chlorination and
dechlorination facilities.
• New gravity belt thickening facilities.
• A new SCADA system to provide monitoring and limited control of plant processes
to improve monitoring capabilities, reduce operating requirements and allow staffing
at the plant to remain below industry benchmarks.
• New administration building.
Preliminary design data for the recommended facilities for the proposed 12.5 mgd
expansion facilities are presented in Table 2-1.
Monroe WWTP
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Environmental Engineers & Scientists

Table 2-1
Design Data
Recommended Facilities
12.5 MGD Design Capacity
Design Basis
Average daily flow, mgd
Maximum month flow, mgd
Peak flow, mgd
Influent Characteristics
Annual average conditions:
BOD5, mg/L
Total suspended solids, mg/L
Total Kjeldahl nitrogen, mg/L
Ammonia nitrogen, mg/L
Maximum month conditions:
BOD5, mg/L
Total suspended solids, mg/L
Total Kjeldahl nitrogen, mg/L
Ammonia nitrogen, mg/L
Design assumptions for NPDES effluent limits
Monthly average, summer (winter)
BOD5, mg/L
Ammonia nitrogen, mg/L
Total Suspended Solids, mg/L
Dissolved oxygen, mg/L
Fecal coliforms, No. /100 mL
Influent Pump Stations*
Pump Station No. 1
Number of pumps
Type
Capacity of each pump, gpm (mgd)
Type of drive
9.70
12.5
37.5
347
337
31.1
20.7
388
415
29.7
19.8
5.0 (10.0)
1.0 (2.0)
30
6
200
4
Centrifugal, non -clog
4,000 (5.76)
Constant speed
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Environmental Engineers & Scientists

Table 2-1 (Continued)
Influent Pump Stations* (Continued)
Pump Station No. 2
Number of pumps
Type
Capacity of each pump, gpm (mgd)
Type of drive
Total firm capacity, mgd
Influent Flow Measurement
Number of flow meters
City Flow Meters
Number
Type
Throat width, inches
County Flow Meter
Number
Size, inches
Type
Fine Screens
Number
Screen openings, inches
Capacity of each screen, mgd
Firm capacity, mgd
Number of manual bypass screens
Screenings compactor
Number
Type
2
Centrifugal, non -clog
6,000 (8.64)
Variable speed
31.68
4
3 (including one for
manually cleaned screen)
Parshall flume
30
1
8
Magnetic
2
0.25
22.5
22.5
1
2
Screw conveyor
* The influent pump stations pump the wastewater from the City of Monroe only. Flow from
Union County will enter the plant upstream of the screening facilities.
Monroe WWTP
NPDES Permit No. NC0024333
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Environmental Engineers & Scientists

Table 2-1 (Continued)
Flow Equalization Basins
Number of basins 2
Dimensions at water surface
Length, ft. 1 @ 579
1 @ 338
Width, ft. 1 @ 194
1 @ 224
Average depth, ft. 1 @ 9, 1 @ 10
Side slope, horizontal to vertical 3:1
Volume, each, mil. gal. 1 @ 6.3
1 @ 4.0
Total volume, mil. gal. 10.3
Flow Equalization Pump Station
Number of pumps 2
Type Submersible
Capacity, each, mgd 3.5
Type of drive Constant speed
Aeration Basins
Number 7
Dimensions
Length, ft. 5 @ 120
Width, ft. 4 @ 60
1 @ 90
Diameter, ft. 2 @ 120
Sidewater depth, ft. 16
Volume, each basin, mil. gal. 4 @ 0.86
1 @ 1.29
2 @ 1.35
Total volume, mil. gal. 7.45
Detention time at design flow, hours 14.3
Aeration System
Type Fine bubble diffused air
Type of diffusers Membrane
Number of diffusers per basin 4 @ 1,060
1 @ 1,610
2 @ 1,660
Monroe WWTP
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Table 2-1 (Continued)
Total number of diffusers
Blowers
Number
Capacity of each blower, scfm
Firm capacity, scfm
Secondary Clarifiers
Number
Diameter, ft.
Sidewater depth, ft.
Total volume, mil. gal.
Total surface area, ft.2
Overflow rate at design flow, gpd/ft.2
Return Activated Sludge Pumping Stations
Pump Stations No. 1 and 2
Number of pumps, each station
Type
Capacity of each pump, gpm (mgd)
Type of drive
Pump Station No. 3
Number of pumps
Type
Capacity, each, gpm (mgd)
Type of drive
Total firm capacity, mgd
Tertiary Filters
Number
Type
Dimensions of each filter
Length, ft.
Width, ft.
Depth of media
Anthracite, in.
Sand, in.
Gravel, in.
9,170
4
7,885
23,660
6
4 @ 85
2 @ 65
4 @12
2 @ 9.83
2.64
29,330
430
3
Horizontal, centrifugal,
non -clog, self priming
1,800 (2.59)
Variable frequency (VFD)
3
Centrifugal, non -clog
1,050 (1.51)
Variable frequency (VFD)
13.39
6
Dual media, w/ air scour
24
20
24
12
18
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Table 2-1 (Continued)
Total surface area, ft.2 2,880
Filtration rate at design flow, gpm/ft.2 3.01
Backwash Supply Pumps
Number 2
Capacity of each pump, mgd 14.1
Backwash Waste Pumps (to Flow Equalization Basin)
Number 2
Capacity of each pump, mgd 13.8
Disinfection Facilities
Type Ultraviolet light
Number of channels 4
Number of banks per channel 1
Number of lamps per bank 84
Total number of lamps 336
Post Aeration
Type Cascade
Number of flumes 1
Gravity Belt Thickeners
Number
Belt width, m
1
2
Septage Receiving Station
Type of treatment Screening
Type of septage removal Pump
Number of pumps 2
Aerobic Digesters/Storage Tanks
Number 3
Diameter of each digester 1 @ 80
1 @ 115
1 @ 140
Volume of each digester, mil. gal. 1 @ 0.49
1 @ 1.15
1 @ 3.00
Total volume, mil. gal. 4.64
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Table 2-1 (Continued)
Aeration and Mixing Systems -Digesters No. 1 and 2
Type
Digester/Storage Tank No. 1
Aerators
Mixers
Digester/Storage Tank No. 2
Aerators
Aeration System-Digester/Storage Tank No. 3
Aeration system
Manufacturer
Type
Number of diffusers
Blowers
Number
Type
Capacity, each, scfm
Horsepower
Centrifuge Dewatering Facilities (Backupl
Number of centrifuges
Capacity of each unit, gpm (2% solids)
Sand Drying Beds (Backup)
Number
Dimensions of each bed
Length, ft.
Width, ft.
Total surface area, ft.2
Vacuum Drying Beds (Not in Service)
Number
Dimensions
Length, ft.
Width, ft.
Total surface area, ft.
2
Mechanical, floating
2@7.5HP
1 @ 40 HP, 2 @ 7.5 HP
3@40HP
Sanitaire
Fine bubble membrane
2,664
2
Positive displacement
2,000
200
2
90
5
120
20
12,000
2
40
20
1,600
Monroe WWTP
NPDES Permit No. NC0024333
Reports\30201-001\Monroe Facility Description
19
HAZENAND SAWYER
Environmental Engineers & Scientists

, UNITED STATES
�S
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
80; 30'
35° 00!
3872000m.
3871
4
N.
083
tW
iQ
U
3870
546050m-E.
550 K `-•/ I
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FIGURE 2
30"
` J ,
•-••••J 1
^J ✓
MONROE WWTP
NPDES PERMIT NO. NC0024333
LOCATION MAP
WINGATE USGS -QUAD
SCALE 1" = 2000'
✓, ^ I° / )!t\,O \2'L
•` .617.Th \ f 1 - f S