NC0023981_Permit (Issuance)_19981013

NPDES DOCUMENT SCANNIN` COVER SHEET
NPDES Permit:
NC0023981
Lenoir — Lower Creek WWTP
Document Type:
Permit Issuance ?
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Technical Correction
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
October 13, 1998
This document is printed on reuse paper - more any
content on the rezrerse side

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
October 13, 1998
Mr. T. S. Childers, Jr.
Town of Lenoir
P.O. Box 958
Lenoir, North Carolina 28645
A��
NCDENR
Subject: NPDES Permit Issuance
Permit No. NC0023981
Lenoir —Lower Creek WWTP
Caldwell County
Dear Mr. Childers:
In accordance with the request for discharge permit modification received on April 20, 1998, the
Division is forwarding herewith the subject state - NPDES permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between
North Carolina and the U.S. Environmental Protection Agency dated December 6, 1983.
In accordance with the request from the permittee, the wasteflow has been modified from 4.08
MGD to 6 MGD. Effluent limitations for BOD5 and NH3-N were reduced based on results of water quality
modeling. In addition, cadmium, cyanide and chronic toxicity limits were modified based on the increase in
wasteflow.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the office of Administrative Hearings,
Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such a demand is made, this permit
shall be final and binding.
Please take notice that this permit is not transferable. Part II, E.4. addresses the requirements to be
followed in case of change in ownership or control of this discharge. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality or permits
required by the Division of Land Resources, Coastal Area Management Act, or any other Federal or Local
govemmental permits may be required.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]/FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

If you have any questions or need additional information, please contact Ms. Jacquelyn Nowell at
telephone number [phone], extension 512."
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E.
cc: Central Files
Asheville Regional Office, Water Quality
Environmental Protection Agency
Aquatic Toxicology Unit
NPDES Unit, Permit File
Point Source Compliance/Enforcement Unit

Permit No. NC0023981
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1,
other lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,
City of Lenoir
is hereby authorized to discharge wastewater from a facility located at
Lower Creek Wastewater Treatment Plant
SR 1149
Caldwell County
to receiving waters designated as the Lower Creek in the Catawba River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III and IV hereof.
This permit shall become effective November 1, 1998
This permit and authorization to discharge shall expire at midnight on February 29, 2000
Signed this day October 13, 1998
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0023981
SUPPLEMENT TO PERMIT COVER SHEET
City of Lenoir
is hereby authorized to:
1. Continue to operate an existing 4.08 MGD wastewater treatment facility
consisting of a mechanical bar screen, aerated grit removal, influent pump station,
aeration basin, caustic feed, dual clarifiers, sludge thickener (dissolved air
flotation), disinfection, aerobic digester, sludge holding tanks, and drying beds
located at Lower Creek WWTP, on SR 1149, Lenoir, Caldwell County (See Part
III of this Permit), and
2. Operate, after receiving an Authorization to Construct, a 6.0 MGD wastewater
treatment facility, and
3. Discharge from said treatment works at the location specified on the attached map
into Lower Creek which is classified C waters in the Catawba River Basin.

Latitude:35° 52' 55"
Longitude:81° 34'35"
USGS Quad #:D12NE
River Basin #:030831
Receiving Stream: Lower Creek
Stream Class: C
City of Lenoir -
Lower Creek WWTP
NC0023981
Caldwell County

A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
Permit No. NC0023981
During the period beginning on the effective date of the permit and lasting until expansion, the Permittee is authorized to discharge from outfall(s) serial number
001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
,. LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly . ,
;Alierage
Daily Maximum
Measurement
Frequency
, Sample
Type
Sample
,t.ocation1
Flow
4.08 MGD
Continuous
Recording
I or E
BOD5 2
30.0 mg/I
45.0 mg/I
Daily
Composite
E, I
I otal Suspended Solids
30.0 mg/I
45.0 mg/I
Daily
Composite
E, I
NH3-N (April 1 — October 31)
7.0 mg/I
Daily
Composite
E
NH3-N (November 1 — May 31)
3/week
Composite
E
Dissolved Oxygen3
Daily
Grab
E,U,D
Fecal Cohform
200/100 ml
400/100 ml
Daily
Grab
E,U,D
pH4
Daily
Grab
E
Total Residual Chlorines
Daily
Grab
E
Temperature
Daily
Grab
E,U,D
I otal Nitrogen (NO2+NO3+ I KN)
Monthly
Composite
E
I otal Phosphorus
Monthly
Composite
E
Conductivity
3/week
Grab
E,U,U
Cadmium
4.9 p/gl
Weekly
Composite
E
Cyanide
12 p/gl
Weekly
Composite
E
Copper
2/month
Composite
E
Zinc
2/month
Composite
E
Chronic Toxicity6
Notes•
Quarterly
Composite
E
Sample Locations: E - Effluent, I - Influent, U - Upstream 50 ft. above outfall, D - Downstream at NCSR 1142 (Corpening Bridge). Upstream and downstream samples
shall be grab samples and shall be collected 3/week during June, July, August, and September and once per week during the rest of the year.
2 The monthly average effluent B0D5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent values (85% removal).
3 The daily average dissolved oxygen effluent concentrations shall not be less than 5 mg/I.
4 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
5 Monitoring requirement applies only if chlorine is added for disinfection.
6 Chronic Toxicity (Ceriodaphnia) P/F @ 40%; February, May, August, November; See Special Conditions A (3) of the Supplement to Effluent Limitations.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
Permit No. NC0023981
During the period beginning at expansion to 6.0 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001.
Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly ;
Average
Weekly ,
Average
Daily Maximum
Measurement
Frequency ' _
Sample
Type
Sample
Location"
Flow
6.0 MGD
Continuous
Recording
I or E
BOD5 2 (April 1 — October 31)
22.0 mg/I
33.0 mg/I
Daily
Composite
E, I
BOD5 2 (November 1 — May 31)
30.0 mg/I
45.0 mg/I
Daily
Composite
E, I
Total Suspended Solids
30.0 mg/I
45.0 mg/I
Daily
Composite
E, 1
NH3-N (April 1 — October 31)
2.0 mg/I
Daily
Composite
E
,NH3-N (November 1 — May 31)
4.6 mg/l
3/week -
/ Composite
Dissolved Oxygen3 (April 1 — October 31)--____Dail
Grab
E, ,
Dissolved Oxygen (November 1 — May 31)
Daily
Grab
E; ,D
Fecal Coliform
200/100 mI
400/100 ml
Daily
Grab
E ,DJ
pH4
Daily
Grab
Total Residual Chlorines
28 pfgl
Daily
Grab
E
empera ure
Daily
Grab
E b,a'\
l otal Nitrogen (NO2+NU3+ I KN)
Monthly
Composite
E
Total ' osp orus
Monthly
Composite
E_
Conductivity
'/week i;,=_a,y
Grab
E,tiJ,D1
Cadmium
4.5 pl�
Weekly ``
Composite
""�E
Cyanide
-1 1 p g
Weekly
mposite��
: ; r_ . E
Copper
2/month
Composite
E
Zinc
2/month
Composite
E
Chronic Toxicity6
Quarterly
Composite
E
Notes:
Sample Locations: E - Effluent, I - Influent, U - Upstream 50 ft. above outfall, D - Downstream at NCSR 1142 (Corpening Bridge). Upstream and downstream samples
shall be grab samples and shall be collected 3/week during June, July, August, and September and once per week during the rest of the year.
2 The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent values (85% removal).
3 The daily average dissolved oxygen effluent concentrations shall not be less than 5 mg/I.
4 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
5 Monitoring requirement applies only if chlorine is added for disinfection.
6 Chronic Toxicity (Ceriodaphnia) P/F @ 44%; February, May, August, November; See Special Conditions A(4) of the Supplement to Effluent Limitations.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit No. NC0023981
SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (3). Chronic Toxicity Test for 4.08 MGD
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North Carolina
Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality is
40 % (defined as treatment two in the procedure document). The permit holder shall perform quarterly monitoring
using this procedure to establish compliance with the permit condition. The tests will be performed during the
months of February, May, August and November. Effluent sampling for this testing shall be performed at the
NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B. Additionally,
DWQ Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility
name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the
comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited
above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert
to quarterly in the months specified above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include
alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid
test and will require immediate follow-up testing to be completed no later than the last day of the month following
the month of the initial monitoring.
QCL P/F Version 9/96

Permit No. NC0023981
SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (4). Chronic Toxicity Test for 6.0 MGD
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North Carolina
Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality is
44 % (defined as treatment two in the procedure document). The permit holder shall perform quarterly monitoring
using this procedure to establish compliance with the permit condition. The tests will be performed during the
months of February, May, August and November. Effluent sampling for this testing shall be performed at the
NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B. Additionally,
DWQ Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility
name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the
comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited
above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert
to quarterly in the months specified above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above..
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include
alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid
test and will require immediate follow-up testing to be completed no later than the last day of the month following
the month of the initial monitoring.
QCL P/F Version 9/96

0-64-t€
PUBLIC NOTICE
STATE OF
NORTH CAROLINA
ENVIRONMENTAL
MANAGEMENT
COMMISSION
P.O. BOX 29535
RALEIGH, N.C.
27626-0535
NOTIFICATION OF
INTENT TO ISSUE
A STATE
NPDES PERMIT
On the basis of thor-
ough staff review and
application of Article
21 of Chapter 143,
General Statutes of
North Carolina, Public
Law 92-500 and other
lawful standards, the
North Carolina Environ-
mental Management
Commission proposes
to: issue a permit to dis-
charge to the persons
fisted below effective
10/12/98 and subject
to special conditions.
' Persons wishing to
comment upon or ob-
ject to the proposed
determinations are in-
v ted to submit same in
riting to the above
a 'dress no later than
1 ./10/98. All com-
ents received prior to
t at date will be con-
si.ered in the formula-
ti•n of final determina
i.ns regarding the
p opposed permit. A
p blic meeting may be
h:Id where the Direc-
i of the Division of
E vironmental Man-
ag-ment finds a signifi-
ca t de9ree of public
'litrestin a proposed
pe mit.
copy of the draft
p-rmit is available by
riting or calling the
Division of Environ-
ental Management,
P 0. Box 29535, Ra-
Ie gh, North—Carolina-
2 ' 626-0535, (919)
7'3-7015.
The application and
er information_may
inspected at these
ations during normal
f ice hours. Copies of
th- information on file
ar- available upon re-
quest and payment of
the costs of reproduc-
n. All such com-
nts or requests re -
ding a proposed
mit should make
erence to the
NPDES permit number
lis d below.
i ate Aug. 24, 1998.
David A. Goodrich
for A. Preston
Howard Jr., P.E.
Director
Division of
Environmental
nagement
ublic notice of in-
e t to issue a State
DES permit to the
oliowing:
1. NPDES No.
0023981. City of
_e oir, 801 West Ave-
u , NW, Lenoir, NC
18.45 has applied for
a •ermit modification
br a facility located at
o ver Creek WWTP,
- the end of NCSR
af
o:d), southwest
tof
oir, Caldwell Coun-
The modification is
expanded flow to
MGD. The facility
ently discharges
s MGD of treated
estic and industrial
tewater from one
all into the Lower
eek, a Class C
e:m in the Catawba
or Basin which has
n 10 flow of 11.7
BOD5, ammonia
en, dissolved ox-
dissolved oxy-
cadmium, and cy-
n'd • are water quality
d. For some pa-
3 :ters, the available
i.d apacity of the im-
i di:te receiving wa-
r ill be consumed.
h's may affect future
.te quality based ef-
u- t limitations for
d��it onal dischargers
vi hi this, portion of
i= atershed.
27
0
TO
a
t
..
e
It
MMIlk
NORTH CAROLINA,
CALDWELL COUNTY,
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said
County and State, duly commissioned, qualified, and
authorized by law to administer oaths, personally
appeared
who being first duly sworn, deposes and says: that
Elaine Klipfel
he is
of Lenoir Newspapers, Inc., engaged in the publication
of a newspaper known as Lenoir News -Topic, pub-
lished, issued, and entered as second class mail in the
City of Lenoir, in said County and State; that he is
authorized to make this affidavit and sworn state-
ment; that the notice or other legal advertisement, a
true copy of which is attached hereto, was published
in Lenoir News -Topic on the following dates:
Classified Manager
qqZ
and that the said newspaper in which such notice,
paper, document, or legal advertisement was published
was, at the time of each and every publication, a
newspaper meeting all of the requirements and quali-
fications of Section 1-597 of the General Statutes of
of North Carolina and was a qualified newspaper within
the meaning of Section 1-597 of the General Statutes
of North Carolina.
This
r C
day of ...7 , i ....
Sworn to and subscribed before me, this j
day of
My Commission expires: ..
Nota Public'
.4 .. M
, 19>1....

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0023981
cility:Information
(1.) Facility Name:
City of Lenoir — Lower Creek WWTP
(2.) Permitted Flow:
4.08 MGD /
6.0 MGD
(5.) County:
Caldwell
(3.) Facility Class:
IV
(6.) Regional Office:
Asheville
(4.) Facility/Permit Status:
(i.e. New, Modification,
Existing or Renewal)
Modification
(7.) USGS Topo Quad:
D12NE
ream Characteristics
(1.) Receiving Stream:
(2.) Stream Classification:
Lower Creek
C
(6.) Winter 7Q10 (cfs):
16.8
(3.) Subbasin:
030831
(7.) 30Q2 (cfs):
22.7
(4.) Drainage Area (mi2):
(5.) Summer 7Q10 (cfs)
47.9
11.7
(8.) Average Flow (cfs):
(9.) IWC (%):
68
40% / 44%
Changes Incorporated into
Permit Renewal
Proposed Changes :: 4
Parameters Affected
Basis for change(s)
Expanded wasteflow
Wasteflow
Requested by permittee
Revised limitations
BOD5, NH3-N, Total
Residual Chlorine
Expanded wasteflow
Revised limitations
Cd, Cn, Chronic toxicity
Revised streamflow
Summary
Facility is requesting an expansion from 4.08 MGD and 6 MGD. Limits for expansion
were given in speculative letter to Caldwell Co. in February 1997. Recommended limits
are :
BOD5 = 22 mg/1 (summer), 30 mg/1 (winter)
NH3 = 2 mg/1 (summer), 4.6 mg/1 (winter)
TSS = 30 mg/1
Dissolved Oxygen = 5 mg/1
TRC = 28 ug/1
Chronic Toxicity = 44 %
Cadmium = 4.5 ug/1
Cyanide = 11 ug/1
Effluent monitoring for copper and zinc.
Page 1
Version: August 24, 1998

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0023981 (Continued)
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice: 08/26/98
Permit Scheduled to Issue: 10/12/98
State Contact
If you have any questions on any of the above information or on the attached
permit, please contact Jacquelyn M. Nowell at [phone], extension 512.
Copies of the following are attached to provide further information on the permit
development:
• Draft Permit
NPDES Recommendation by:
Regional Office Comments
giu- -a
Sig ature:
A.
Signature:
Regional Recommendation by:
Reviewed By:
Regional Supervisor:
Signature:
Date:
NPDES Unit:
Signature:
Date
Page 2
Version: August 24, 1998

Summary
NC0023981
City of Lenoir is requesting a permit modification for expansion of existing Lower Creek
WWTP from 4.08 MGD to 6 MGD. The discharge is primarily domestic (92.5%) with
7.5% industrial wastewater. Lower Creek WWTP discharges into Lower Creek and is
classified as C.
A speculative letter in February 1997 recommended limits for several Caldwell Co.
municipalities, Lenoir, Granite Falls, and a proposed regional facility, that were
completing a 201 Facilities Plan. Oxygen consuming limits for the Lower Creek facility
at 6 MGD were determined at that time.
Recommended limits @
Summer
BODS = 22 mg/1
NH3 = 2 mg/1
DO=5mg/1
TSS = 30 mg/1
TRC = 28 ug/1
Cadmium = 4.5 ug/1
Cyanide =11 ug/1
Chronic toxicity limit of 44 % in Feb, May, Aug, and Nov.
Monitoring for copper and zinc. Silver monitoring will be continued in the LTMP.
6 MGD:
Winter
GODS = 30 mg/1
NH3 = 4.6 mg/1
DO = monitoring
TSS = 30 mg/1
TRC = 28 ug/1
Lower Creek facility requesting SOC for construction, extension date was necessary.
Compliance requested 8/98 notice date so that 11/1/98 construction contract date could be
met.
Instream data indicated no DO problems instream based on discharge from WWTP.
However, there were other parameters that showed some problems. Elevated upstream
fecal coliform values in 1997 ranged between 1500 to 6700/100 ml while downstream
values ranged from 330 to 3300/100m1. No average values below the standard of 200.
1996- ups 898, 430, 1608,1734, 1908, 433 down — 54, 344,1320, 2016, 1596,307.
1998 ups 1190, 1477 down- 886, 537'
Upstream metals monitored per LTMP, As- 1/ug/1 8/96, 12 ug/1 Zn 9/96, 8 ug/1 in 10/96.
Instream Cu values above the State action level of 7 ug/1. Value of 9 ug/1 in 10/97, <8 in
8/97, <8 in 9/97. Cn value of 60 ug/1. in 10/97, <5 in 9/97 and 8/97.
ARO may need to investigate upstream of discharge and determine the source of the
high fecal coliform values. USGS topo map indicates a large development upstream
of the WWTP.
Recommend speculative limits along with metals limits be given at 6 MGD

TOXICANT ANALYSIS
Facility Name
Lenoir -Lower Cr WWTP
NPDES #
NC0023981
Qw (MGD)
6
7Q 10s (cfs)
11.7
/WC (%)
44.29
c'ving Stream
Lower Creek
Stream Class
C
FINAL RESULTS
CN
Max. Pred Cw
27.2
ug/
Allowable Cw
11.3
ug/
AG
Max. Pred Cw
274.5
ug/
Allowable Cw
0.1
ug/
Max. Pred Cw
62.1
ug/
Allowable Cw
4.5
ug/
CR
Max. Pred Cw
16
ug/
Allowable Cw
112.9
ug/
CU
Max. Pred Cw
160
ug/
Allowable Cw
15.8
ug/
NI
Max. Pred Cw
15
ug/
Allowable Cw
198.7
ug/
PB
Max. Pred Cw
42
ug/
Allowable Cw
56.5
ug/
Max. Pred Cw
ea
ug/
Allowable Cw
112.9
ug/
AS
Max. Pred Cw
0
ug/
Allowable Cw
112.9
ug/
HG
Max. Pred Cw
0
ug/
Allowable Cw
0.0
ug/
Jproitolip
1
7/15/98 'PAGE 1

Lenoir -Lower Creek @ 6.0 MGD Expansion
Parameter = CN Parameter = AG
Standard = 5 Ng/1 Standard =
n BDL=1/2DLctual Data RESULTS
1 2.5 <5 Std Dev. 1.8862968
2 3 <6 Mean 2.9206349
3 2.5 <5 C.V. 0.6458516
4 2.5 <5
5 17 17
6 3 <6 Mult Facto,
7 2.5 <5 Max. Value
8 2.5 <5 Max. Pred
9 2.5 <5 Allowable C
10 3 <6
11 2.5 <5
12 2.5 <5
13 2.5 <5
14 2.5 <5
15 2.5 <5
16 2.5 <5
17 2.5 <5
18 2.5 <5
19 3 <6
20 2.5 <5
21 2.5 <5
22 2.5 <5
23 2.5 <5
24 3 <6
25 2.5 <5
26 2.5 <5
27 2.5 <5
28 2.5 <5
29 2.5 <5
30 2.5 <5
31 2.5 <5
32 3 <6
33 3 <6
34 2.5 <5
35 2.5 <5
36 2.5 <5
37 2.5 <5
38 2.5 <5
39 3 <6
40 2.5 <5
41 2.5 <5
42 2.5 <5
43 2.5 <5
44 3 <6
45 2.5 <5
46 2.5 <5
47 2.5 <5
48 2.5 <5
49 2.5 <5
50 2.5 <5
51 2.5 <5
52 3 <6
53 2.5 <5
54 2.5 <5
55 2.5 <5
56 3 <6
57 2.5 <5
58 3 <6
59 2.5 <5
60 5 <10
61 2.5 <5
62 6 6
63 2.5 <5
64
65
66
67
1.61
17 NgA
27.2 pg/1
11.3 pg/1
0.06
Parameter = CD
Standard =
2
Ng/1
n 3DL=1/2DbtuaI Data RESULTS n 3DL=1/2DActual Dat RESULTS
1 4 <8 Std Dev. 10.9129 1 1 <2 Std Dev. 3.377
2 5 <10 Mean 6.67647 2 1 <2 Mean 1.836
3 22 22 C.V. 1.63453 3 1 <2 C.V. 1.84
4 3<6 4 1<2
5 4 <8 5 1 <2
6 4 <8 Mult Factor) 6.11 6 1 <2 Mutt Facto
7 2.5 <5 Max. Value 45 pg/1 7 1 <2 Max. Value 23
8 2.5 <5 Max. Pred ( 274.5 {ig/l 8 1 <2 Max. Pred ( 62.1
9 2.5 <5 Allowable C 0.1 pg/I 9 1 <2 Allowable C 4.5
10 2.5 <5 10 1 <2
11 45 45 11 4 4
12 2.5 <5 12 1 <2
13 2.5 <5 13 1 <2
14 2.5 <5 14 1 <2
15 2.5 <5 15 1 <2
16 4 <8 16 1 <2
17 2.5 <5 17 1 <2
18 18 1 <2
19 19 1<2
20 20 1 <2
21 21 1 <2
22 22 1 <2
23 23 1 <2
24 24 1 <2
25 25 1 <2
26 26 1 <2
27 27 1 <2
28 28 1 <2
29 29 1 <2
30 30 23 23
31 31 1 <2
32 32 1 <2
33 33 1 <2
34 34 1 <2
35 35 1 <2
36 36 1 <2
37 37 1 <2
38 38 1 <2
39 39 1 <2
40 40 3 3
41 41 1 <2
42 42 1 <2
43 43 1 <2
44 44 1 <2
45 45 1 <2
46 46 1 <2
47 47 1 <2
48 48 2.5 <5
49 49 1 <2
50 50 2 <4
51 51 18 18
52 52 2 <4
53 53 2 <4
54 54 2 <4
55 55 2.5 <5
56 56 2 <4
57 57 2 <4
58 58 2 <4
59 59 2 <4
60 60 2 <4
61 61 1 <2
62 62 1 <2
63 63 1 <2
64 64 1 <2
65 65 1 <2
66 66 1 <2
67 67 1 <2
7/15/98 NC0023981

Parameter = CR
Standard =
50
Lenoir -Lower Creek @ 6.0 MGD Expansion
Parameter= CU
Standard = pg/l
n 3DL=1/2DLActual Dab RESULTS
1 4 <8 Std Dev. 1.423
2 10 10 Mean 4.444
3 4 <8 C.V. 0.32
4 4 <8
5 4 <8
6 5 <10 Mull Factor{ 1.61
4r9A 7 4 <8 Max. Value 10 pgA
pgA 8 4 <8 Max. Pred ( 16 pgf
pg/I 9 4 <8 Allowable C 112.9 pg/l
10 4 <8
11 4 <8
12 4 <8
13 4 <8
14 5 <10
15 4 <8
16 4 <8
17 4 <8
18 4 <8
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
S4
55
56
57
58
59
60
61
62
63
64
65
66
67
7
n 3DL=1/2DActual Data RESULTS
1 4 <8 Std Dev. 12.013
2 14 14 Mean 13.086
3 24 24 C.V. 0.918
4 5 <10
5 25 25
6 64 64 Mull Facto
7 12 12 Max. Value 64 ig4
8 12 12 Max. Pred . 160 µg/I
9 10 10 Allowable C 15.8 IigA
10 10 10
11 9 9
12 23 23
13 12 12
14 13 13
15 9 9
16 11 11
17 4 <8
18 19 19
19 4 <8
20 4 <8
21 12 12
22 11 11
23 4 <8
24 4 <8
25 5 <10
26 10 10
27 4 <8
28 8 8
29 35 35
30 4 <8
31 4 <8
32 4 <8
33 16 16
34 17 17
35 32 32 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
59 59
60 60
61 61
62 62
63 63
64 64
65 65
66 66
67 67
Parameter. NI
Standard =
88
P911
n3DL=1/2DIActual Data RESULTS
1 4 <8 Std Dev.
2 5 <10 Mean
3 5 <10 C.V.
4 5 <10
5 5 <10
6 10 10 Mult Facto,
7 5 <10 Max. Value
8 5 <10 Max. Pred
9 5 <10 Allowable
10 5 <10
11 5 <10
12 7.5 <15
13 5 <10
14 5 <10
15 5 <10
16 5 <10
17 5 <10
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
7/15/98 NC0023981

•
Lenoir -Lower Creek @ 6.0 MGD Expansion
Parameter= PB
Standard =
1.3639
5.3824
0.2534
10 ugf
15 pg/1,
198.7 pg/l'.
25
N9�
Parameter = ZN
Standard =
n 3DL=1/2Dl\ctual Data RESULTS
1 16 16 Std Dev. 4.266
7.5 <15 Mean 9.412
7.5 <15 C.V. 0.453
7.5 <15
5 <10
21 21 Mutt Facto,' 21
7.5 <15 Max. Value 21 pg/1
7.5 <15 Max. Pred t 42 pg/1
7.5 <15 Allowable C 56.5 pg/1 '.
7.5 <15
7.5 <15
16 16
7.5 <15
12 12
7.5 <15
7.5 <15
7.5 <15
S0
n BDL=1/2DL Actual Data RESULTS
1 36 36 Std Dev. 35.437
2 32 32 Mean 48.2
3 36 36 C.V. 0.7352
4 33 33
S 27 27
6 94 94 Muh Facto
7 23 23 Max. Value
8 31 31 Max. Pred
9 45 45 Allowable C
10 52 52
11 59 59
12 77 77
13 57 57.
14 63 63
15 36 36
16 40 40
17 16 16
18 33 33
19 27 27
20 27 27
21 35 35
22 30 30
23 19 19
24 44 44
25 22 22
26 39 39
27 55 55
28 23 23
29 80 80
30 221 221
31 39 39
32 58 58
33 49 49
34 51 51
35 78 78
36
37
38
39
40
41
42
43
44
45
46
47
48
49
S0
51
52
53
54
55
56
57
S8
59
60
61
62
63
64
65
66
67
221 pg/1
464.1 pg/1
112.9 pg/I
7/15/98 NC0023981

t
Lenoir -Lower Creek WWTP
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (UG/L)
IWC (%)
Allowable Concentration (ug/I)
Fecal Limit
Ratio of 1.3 :1
Ammonia as NH3
(summer)
11.75 7Q10 (CFS)
6 DESIGN FLOW (MGD)
9.3 DESIGN FLOW (CFS)
17.0 STREAM STD (MG/L)
0 UPS BACKGROUND LEVEL (MG/L)
44.18 IWC (%)
38.48 Allowable Concentration (mg/I)
Ammonia as NH3
(winter)
7Q10 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL (MG/L)
IWC (%)
Allowable Concentration (mg/I)
11.75
6
9.3
1.0
0.22
44.18
1.99
16.8
6
9.3
1.8
0.22
35.63
4.65
NC0023981
1 2/17/9 6

LONG TERM MONITORING PLAN REQUEST FORM
FACILITY: Lenoir — Lower Creek VVWTP
NPDES NO.: NC0023981
EXPIRATION DATE: 2 / 29 / 00
REGION: ARO
P&E REQUESTOR: Jackie Nowell
PRETREATMENT CONTACT: Melanie Bryson
DATE OF REQUEST: 7 / 16 / 98
INDICATE THE STATUS OF PRETREATMENT PROGRAM:
1) THE FACILITY HAS NO SIU'S AND SHOULD NOT HAVE PRETREATMENT LANGUAGE.
2) THE FACILITY HAS OR IS DEVELOPING A PRETREATMENT PROGRAM.
3) ADDITIONAL CONDITIONS REGARDING THE PRETREATMENT PROGRAM
ATTACHED.
PERMITTED FLOW: Presently 4.08 MGD, expanding to 6 MGD
% INDUSTRIAL 92.5 %
% DOMESTIC 7.5 %
Pretreatment Unit Staff (Town)
Mike Blasberg (A - D) Dana Folley (M - R)
Melanie Bryson (E - L) Greg Newman ( S - Z)

.lenoir expansion permit
Subject: lenoir expansion permit
Date: Fri, 17 Jul 1998 09:52:22 -0400
From: "Susan Wilson" <susan [e-mail]> internal
To: Jackie Nowell<[e-mail]>
CC: Marcia Lieber<[e-mail]> ,
Dave Goodrich<[e-mail]> ,
Jim Reid <ts 19w76 @ aro.enr.state.nc.us>
jackie,
per our discussions this morning, lenoir is under an soc and we are
currently revising the time schedule. due to their delay in fonsi
issuance, aro & lenoir are proposing 4 month extension (therefore, no
public notice of this soc amendment) with a construction contract date
of 11/1/98. since they got their npdes expansion request in 4/28, this
may be a tight time frame. if you could get this out to notice by mid
to late august, it may avoid any further extensions. thanks for the
help.
1 of 1 7/17/98 9:53 AM

f�
.lenoir
Subject: lenoir
Date: Sun, 16 Aug 1998 11:34:50 -0400
From: "Susan Wilson" <susan wilson@ h2o.enr.state.nc.us> Internal
To: Jackie Nowell<[e-mail]>
CC: Dave Goodrich<[e-mail]>
jackie,
cecil left me a message friday stating that they were going to bids
probably next week and he felt ok with schedule you had for notice. i
have never understood how a facility can go out to bids with a project
prior to public notice (seems to circumvent the process a little,
doesn't it?). anyway, I'm proceeding forward with the soc. thanks for
making those calls.
1 of 1 8/17/98 8:07 AM

•
08/201998 10:08 4
PART
2.
3.
4.
SOC PRIORITY PROJECT: YES
IF YES, SOC NUMBER 96-31
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Bob Teulings
DATE: dune 22, 1998
N 1' I) ES STAFF REPORT AND RECOMMENDATION
COUNTY Caldwell
PERMIT NOMBnR NC0023981
I -- GENERAL INFORMATION
Facility and Address:
Date of Investigation:
Report Prepared By:
City of Lenoir,
801 West Ave NW
Lenoir, NC 28645
PAGE 01
s
f
re
'17
z
0
1
32
xa
cio
-4)
Lower Creek Plant
E'ebruary 10, 1998
James R. Reid
Persons contacted and Telephone Number: : T. S. Childers, Jr.
704-757-2176
5. Directions to Site: From the intersection of Highway 18
with Southwest Blvd (SR 1933), go South on Southwest
Blvd 0.8 mile to Miller Hill Road (SR 1149). Travel
eft Southwest on SR 1145; turn right on SR 1149. The plant
is located at the end of SR 1149.
6. Discharge Point(s), List for all discharge points:
Latitude: 35° 52' 55"
Longitude: 810 34' 35"
Attach a USGS map extract and indicate treatment facility site and
discharge point on map.
u . s . G. S . Quad No. D12NE II. S . G . S . Quad Name Lenoir, NC
7. site size and expansion area consistent with application?
x Yes No If No, explain:
-1-

08/24/1998 10:08 4
PAGE 02
8. Topography (relationship to flood plain included): Terraced slope
adjacent to flood plain.
9. Location of nearest dwelling: 300 feet or greater.
10. Receiving stream or affected surface waters: Lower Creek.
a. Classification: C
b. River Basin and Subbasin No.: CTB 030831
c. Describe receiving stream features and pertinent downstream
uses: Sandy bottomed stream used as a source of water for
wildlife support, agriculture, and recreation.
PART II - DESCRIPTION OF DISCFIARGE AND TRFATMPNT Timms
1. a. Volume of wastewater to be permitted 6.0 MGD (Ultimata
Design Capacity)
b. What is the current permitted capacity of the Wastewater
Treatment facility? 4.08
c. Actual treatment capacity of the current facility (current
design capacity 4.08
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in flue previous two years:
November 30, 1994 A-to-C for sludge press, lime
stabilization, expansion of secondary clarifiers, addition of
dechio r ination .
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Heisting -
mechanical bar screen, aerated grit removal, influent pump
station, aeration basin, caustic feed, dual clarifiers,
sludge thickener (DAF), aerobic digester, belt press, lime
pasteurization, disinfection, dechlorination, sludge ho]ding
tanks, drying beds, land application of sludge.
f. Please provide a description of proposed wastewater treatment
facilities: Expansion to 6.0 MGD, plus installation of
aerobic/anoxic process for ammonia removal, new cyclonic grit
removal, upgrade of aerobic digester, addition of odor
control apparatus, .
Possible toxin impacts to surface waters: Ammonia & chlorine.
g •

08/24/1998 10:08 4 PAGE 03
h. Pretreatment Program (POTWs only) :
in development approved X
should be required not needed
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify 1WQ
Permit Number WQ0002049
b. Residuals stabilization: PSRP _ PWRP X OTHER
C. Landf ill :
d. Other disposal/utilization scheme (Specify) :
3. Treatment plant classification (attach completed rating sheet): IV
4. SIC Codes (s) : 4952
Primary 01 Secondary 55, 57
Main Treatment Unit Code: 12 0_3
PART III - OTHER PERTINENT INFOIOWTON
1. Is this facility being constructed with Construction Grant Funds
or are any public monies involved. (municipals only)? Yes
2. Special monitoring or limitations (including toxicity) requests:
No
3. Important SOC, -JOC, or Compliance Schedule dates:
indicate)
submission of flans and Specifications
Begin Construction
Complete Construction
City has submitted a request for minor
months to each of the above dates.
(Please
Date
October 1, 1997
July 1, 1998
November 1, 1999
modification to add 4
4. Alternative Analysis .Evaluation: Has the facility evaluated all
of the non -discharge options available. Please provide regional

i .
08/2411998 10:08 4 PAGE 04
perspective for each option evaluated.
Spray Irrigation: Insufficient land available.
Connection to Regional Sewer System: Lower Creek Plant is the
regional system.
Subsurface; Flow is too great.
Other disposal options:
5. Other Special Items:
PART IV EVALUATION AND RECOMMENDATIONS
Secondary are sufficient to handle the increased flow.
Issuance of the A-to-C is recommended.
a
&ter Quality Regional Supervisor
(e;::
Date
-4-

08/ 24/ 1998 10: 08 4
r• / -.
• /: j,
Qakw40c1
Ch I • .'
L. • / ;
•
I� r�
;�.••
• •
.44
•r'JI:
1 230 000 FEET
edited, and published by the Geological Survey
USGS ;Ind USC&G5
y from e•Criul photographs by photogrommolric methods
tograph:. taken 1947. Field check 1955
arojectian. 1927 North American datum
of grid t ssed on North Carolina coordinate systern
!r Universal Transverse Mercator grid ticks,
hown in blue
ashed 1i:Ies indicate selected fence and field lines
aor'•t pi otagraphs. This information se unchecked
In :s area in which only
bu)Tding:, are shown
I elevatOrts are shown in brown
4.4
'•,
•
r \Pt?:
.'.
a
PAGE 05
•
•' ". _.•
•
ram';
7.•••
••
° •
Att.
em
ae
rf.. •-
«Grand View
••_•
•
ur. r
1053 - �•� .,^ _ •'`' I hs• i,
u15
•
0wm[w0at o. s 0.0.447 35' 448
MOROAN rOM 1 MI.
WEI
t
MNI
1i'
GN
0-20•
6MILS
.oirri;\;; V;:~
■
•
YTM GRID AND 1956 MAGNUM NORTH
DECLINATION AT CENTER C/ SHEET
1
2000 0 1000
ri-i-- -r -••• "—•' -••Y
1 5
ler. ,=eu -.tom
4'.,,t/)
Du
col'
DCTTE] LII
THIS MAP COMPLIES
FOR SALE SY U. S. GE(
A FOLDER DEScRI91NC TOPOGR

•
08/24/1998 10:08 4 PAGE 06
RATING SCALE FOR CLASSIFICA'7ION OP WATER POLLUTION CONTROL SYSTEMS
Name of Facility: _ &TJ' di+ .L.'.f/aJ/P .....a_
Owner or Contact Person: 0;rti 4e 44-A/di,!
Mailing Address: Po Ad far L6 #�.acg AJ C.. a2r a / -
f ,
County: (' I tw&i.. t Telephone: ,yak - rsv7 - 2 I 'P
Present Classification: rr New Facility Existing Facility )( (u,' -t 'AD£
NPDES Per. No. NCoo 3q , ___ Nondisc. Per. No.WO Health Dept.Per Na._,_
Rated by: ----__---. _ _Telephone:1,18• 2(I 4zogy Date: C2 - 2.1-7S.
Reviewed by:
°r^
Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
CRC:. ?!5 d 5 i.-^..,.., Grade: Telephone: r +'7 2 l r
Check Classification(s): - Subsurface Spray Irrig •;; Land Application
Total Points: _ ;
Wastewater Classification: (Circle One) I 11 111
. ILA i , ' •., I I .Ir tl..c ..a e. it 1 :rit: _ w:.. s . t A. .
CONSIDER ED WASTE T13EATMug[ vrfuNEPtiRiaageOFCLASSIFiCATICK ALSOWTIC TAW SYSTEMS CONSIS rljVC ChLY OF SEPTIC TAIL(
Akio. spAvrr a htrrRigICAriON t_iNES AAP Mersa:WM(71mM ArAtritiATm
SLI SURFACE C, SSIRC'ATiON
(check all Uhl that apply)
1, ,septic tanks
2. pump minks
3. siphon or pump -dosing systems
4. sand fillers;
5. grease trap/interceptor
6,__—_�oiWwatcr siaparolon:
7�-gravity subsurface treatment and disposal:
B. pressure subsurface treatment and dIep al:
in addition to
be rated using
SPRAY IRi CATION CLAssiF1CATION
(check all units that apply)
1 .preliminary treatment (definition no. 32 )
2 __lagoons
3. septic tanks
4pump tattles
5.pumps
0 wend Alters
7_grease trap/interceptor
0...,,,.....,_oW1/water 'separators
0, disinfection
10. chemical addition for nutrient/algae) control
11, spray irrigation of wastewater
the above clsselfteations, pretreatment of wastewater in excess of those components shell
the point rating system end will require en operator with sn appropriate duel certification
LAND AP PL[CATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. Land application of bicsolids, residuals or contaminated sails on a designated site.
WASTEWATER 111EATMU'1T FACILITY CLASSIFIf:ATICN
The following systems shall to assigned a Class 1 dos&11ca11on, Lana the flow la of a significant quantity er the technology Is unusually
complex. to require consideration by the Commission on a case -by -case basis: (Check If Appropriate)
1. Qil/water Separator Systems consisting only of physical separation, pumps and disposal:
2, Septic Tunic/Sand Fitter Systems am:Ming only of septic tanks, dosing sppanaus, pumps.sand litters. disinfection
and Bract dissCufr jo:
3. _Lagoon Systems consisting only of preliminary treatment. lagoons, pumps, disinfection. necessary chemical treatment for
algae or nutrient Control, and direct discharge;
4._-, - Cto ed-loop Recycle Systeme;
5. Groundwater Remediation Systems consisting only of oti avatar separators, pumps. air -stripping. carbon adsorption, disinfection
and disposal;
6. Aquaculturo operations rah discharge to autism waters;
7 Water Plant sludge handling and back -wash water treatment:
8. _Seafood processing consisting al screentng and disposal.
8. Single-family discharging systems, with the exception of Aerobia Treatment Units, will be rdasi{ied if permitted atter July 1.
1o93 or If upon inspection by the Division, it Is found that the ayatera to not being adequately operated or mdntalnod. Such
systems win be notified of the classification or rrdasagication by the Commission, in witting.

E)8/ 24/ 1998 10: 08 4
PAGE 07
The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
REM POIPITS
( t ) industrial Pretreatment Untts or m dustdal Prstreatmeret Program (tea d.fhzkton Ne. 33) ...� J
12) DESIGN FLOW OF PLANT IN gad (rot applicable to non.mntangnated cooling wets, sludge handling T ci ltle. for •�/
water purilltatton plants. totally dosed cycle syttamt(toe daftniden No. 11), and todti<tet tonalating only al horn ►
',...•-- (4)(d) or horns (4)(d) and (11)(d)J
0 - 20,000.. ............... ... ....... .._ ........ _..............
20,001 • 50,000.Y,.. .......
50.001 - 100.000 «
._..... .............._ �... ...«__.....
1COA01 . 250,000.-..„....NI.N.N Y......,„N
260•601 - «.«_.r.._....,„.•.NN.....__..............„................... ..«..«.�
tiYO►eQ0\.MNY •-„„....•NN.\•.....NIl... .„„N..N.N...._•..._. _.... ...lN...5
500,001 • 1►000►000... .5
1.000.001 - a,00u.90o .... „,...... N.„..... ......_...
2.000.001 (and up rat 1 Int additional for oath 200.00o gpd capacity up to a maximum of .._._._.....e)
Oa�a�lQn Flow(
13) PRtct.IMWARY UN1f;f PPOO (age definition No.32)
PO
or
lb) CID
(c) Get Ronaval...................... ............................ _......................... ........._.«�....,,
Or
(d )Mecilludea10 M.\t� . ld Grit Removal..
(9) Mille Messurbig Device..,, ...•••
or
(1) imtnrarentsd Flow Massursment...N.N...................... --
((g) Per.. lofirstlott....._.N....«,.,..„. . 2
h) more t le wn W••• •._..«.._...._._.N........... „.N..N.......... «.««...«..•.«•
(I) Oman ar al aspersion - GravIty_...„,..N.N...... N........._...« _...............2
Mttcn=it esi.,..N„ N.., ....._........ „...... .... .3
011140kOd Aiir t ion.,.,,..,.N'.N.•.•N..........N............_ .. ........3
(I) MlfV rt.►N.N..•......•.„..„.N.N.......N.........w . .............._......,. 1... ...5
(4) PRU iARYiFIEATMENT Lear p CESSE i
(a) & ti�c/ Taltk e ttsfirlitbtl Na- 43).„....„.„........ ..... ....N........NY .............Y.............«....N............ ...Y.2
y) ltn ill +yT�Pa.NN,NN......„....m wY........... - .« ._5
d) $ t� Ponds or Sailing MOM let •N••• Non -tolls Materials sludge ••• handling lan`Fttuaa tot WM.,
pta#icatian plate gr v. dank and OW Wane cporalions accept recreational activities such as gem
(5) S O QO ECOMMY `IC; •••....N...N..........» 2
(a) Carbanaorota Sia0a
(i) Asrslion-High Purity Oaygsn System
Diffused Mr syatenv.. —
likahanlaalAili Spyat*mm (IIx ttt1N.tn or rot- Nr)_..N.....,.„„.....•.Y..•YN W.Y..•.«M_w_••••..__
sorame mutt.
��'.{
(li) .woo.............N«.._._.......-.«w„„....„.........„.NN.."..........•.«a
NighRule.......................N................_.......„..,...... ..
ww....... , • n„.N.„.„.... Imo. ................. «........3
RecitedTow.r............,M.N..„..N.............. •I.N.Ni0....... M -..
S) Bbbbglas1 Airsted Fllttlr or Asratad t8tolkpiott) Mar ....YYY.«..N-__.«.._......NN.N...............10
w► Amsted Lrtgoons............„. .«.N..«. to
(v) Roles �s1 Ceotl oelY.,-_1._............ .... ...... ...•N.....N.......• .•. .......1 tt
(v1) St�.fw�►M\' a� -,! e,.f.rr� Dict�.Wi,,N...NI..YN..INMNN•._.M... 2
Reokatdailnp biological.— „. ..•.....« 2
) $gallon tti...•.•.•••••••.w.r..............NN....N•.........._•.
.•.- N..NNN.NM
........_._....... .......`i
antler
(�.. .•....
M•attenkal sees► Stag Screens or Comminuting Devices.....«.....«...... ..............
2
..........IV.....„... „........ ......... 1 n
YY.•__ww.•.•...•„N•N•.I...„„N........ N N«......
(6)
(x)
(b) (al) Bloleglral culture retool' Saps')additbn
Standard
prop notes Stag
(I) A.ruton• high O yg n arum— ........... N.•...N.
te1
7
TIP .reform Iarcartbhed iiro0nst7aatra removal al BOP and nMogertous removal by
h (ssi ddinitbn No. 12)(Points for thla kern helve to be In addition to items
(0)(a)a) through (0)(s)(va1)►
tttlItbtg the amended aerstian process (w definition Nc.3a)...................
w1litn other lion ome bon �sse..NN...N._._.._.11D..,.„-� f.....�
Natant additions to anima SOD r•mova1....., •••tote„ 1.000 ....................Y..... .........5
.............................5
20
.6••• •• .... 10
floating
�e1 a System
(fixed. or rolor)Y.........._....... a
S• s ssemU0 .N..—......•./..live......../..Nett 3
tit) • ring. FRtsr•i h Rat..N.••1.,....„.IN..... ..... N. r.....
Standard Rite.. NYW......y
Packed Tawsr.,..MN.,.,.N.„..„....•____...... N..NNN..•N....... .1..N•N...
5
III) iv) Rio trap Aerated {tor or Aerated Biological Fateer......
R�9ltrai Contactor*«..__..---__.......N.««.»..._................t 0
.. 1 0
v) Sind sr • tntsrtr>tttsr$ b1olot l...«.„.......................
Recirculating bloloolad•...
n• 1vi) t.N.,...,.y�.t.N,.....lyl.•...z.NN.\\M. N. W.....
(a) Activated Carbon Bode •
without when regsMratlon....—........ ..... „. ..._S
with carbon regeneration.........__._. i s
(b) Powdered or Granular Mtivsled Cvbon Feed.
without turban rsgenerttlon .5
ww iirTh carbon tagenaallon NN1.Y.•.►.,,, �..• N•_. .., ' 1 5
(0) Alt fiit�n�._...w_........,,..•-.,N.,.N.......... N.N.Nw.w...._..•„....„..N•N...... .. ......... •...N...._._._... ......... N.••.wi+
(d) �Yc&Uon�P a..••... WWY._,.►,,,.„...... ........... YN....N•..Y........•.,..„.,...„.„.„................._10
(e) Eii etro}...WYffisi• N•N•••w..w.N•.r.•..._._.-...„.„....„......• 11.•... . ,, ..N...N.NNNN.Y..__..„.....„4
( II )a■ Foot , B**parer..'............•.YNN•►•••..•.•.••.......NN......„. ....-.+.„•,..-•••„.••••5
(0) Ion Cif , .,•w••..•••••-_._...••••..,,,..N............W.....„N....„..NN..„.......„„........Y. _....N_._. N....5
1 h) Land Apptticatlorl of Tc*.ssd Etflv.r,< (see Witten No. b) (not sit tkable for sand, gravel. atone
and Mho, similar ndning ep.+atiort.) by high rat. tnfutratlon....•Y........•...N.. . `
1•. M„1.-• 1•N..NNY 1
(1) Mlcrolcro uns1 . .MMNW..,,,•,,.,.......„......Y..u•..•'•$.4” ��y y .•.3
( l) DPhil/,Pi ioera Re Without
5t01og c 1 Plo o� (tip d&W ton No. 20)...•...N....N...... 20.
(k) oirtg Ponds-�1•,,thout airaUon...,....•WY..,Y.•._. W..••••. ••_2
with aarattan..., ........,...,.NNNN..INN............ moo. ....... M.,,.„..• N.ai

;
08/ 24/ 1998 10: 08 4
PAGE 08
111 Poat Mutation - cascade . .•.....
diffused or mechanises, .,, 2
(m) Reverse Osmosis ,5
(n) Sand or MI*t $Media Filers - 10w raw ...... .. ........ ........... ................»2
high rate .5
(o) Treatment processes for removal of metal or cyanide ................ 1 s
(7) (SJ.t)t7GETt3EAeavns processes for removal of toxic materials other than ntstal orcyanide......................... t5
(a) Sludge Digestion Tank • Hoatod (anaerobic)...
Aerobic
Unheated (anaerobic) .......M..... /..................................................................
I b) Studg. St tttaation (chemical or thsrm$t)
(c) Sludge Dryteeds • Grav>ty .. 2
Vacuum d.......... t................ .....,...... 643
(d) Sludge Elutdattoii . .........-. S
(o) sludge Conditioner (chemical Or thermal) .5t) Stodge Thickener (gravity). ._.......
t o) Ctaaotvsd Atr Rotation link (not appticatiie to a Britt rand ai (nip .... .............................. ...... .........
r) Sludge Gas Utilization (Including gas storage).....—,... ............. ....—
*ledge Hoidtng Tank • Aerate0......................
2
Non -aerated ........._... .•..................................2
(1) Studgv incinerator (rat tnekid1AAgp activated carbon rOg.e*s lon)........._._..................................................10
() Vacuum Filer. Cenirdu e. or Flttor Press or Other similar dewetering devices .10
(a) RESIDUALS UTIUZATIONfDISPQ$AL (including incinisratad ash)
a La oonn.••►•..N.......NN...•.....•.••..••••..•••..-...••.....•...••.. 2
b)) lend Application (surface and **Surface) (see definition 22a)
by ccntraCttnd to a land application operator or landfill operator who holds the Land application pat
or landlil�enidt..
Ded(eatadLandfla
2
(9) Co)
Or G'TIQV (burial) by the parm1ttas of tho waatewatsr traatment facility 5
• (a) Chlorination -. ........-....�..............
(b) Docltiortna5on...................................� ... ............. .
(c) Ozono-
(d) Radiation............................................».S
(10) Crit7A1CAL ADDITION 8118TEM(8) (seo deflrshion Nro. e) (not applicable to chemical addition rated as hem (3)0).
(5)(a)(xl). (6)(a), tMi(b), R)(b). (�)(e). (off), (0)(b) or (0)(c) 6 points oach:
List .......•.................„ .5
5
..w
••••• ....... ••••N.•••.......... ••.Y.......... M.—►..•••••..................•............ .....5
(11) MiSCELLANKIUS UraT8fPROCESS55
(a) Holding Ponds, Holding Tanka or Settling Ponds for Organic or Toxic Materials inclining wastes from mining
*Potations containing nitrogen or phosphorus compounds to &mcunts significantly greater than is common
far domestic wastewater ...a
(1)) Effluent Flow Equalisation (not applicable to *tempbasins which are lnhorent In WTI applicationsystems)......2
(c) Stage Discharge (not applicable to storage basins tnhorars In tend appileatlen syatemQ).______._.,._..--.
(d) Ptrntps.....».......... ......•..• (0)
Stand -By Power Supply _ ...................-.................._.....,
(f) Thermal Pollution Control Device •••..........
TOTAL POINTS -4—
CLASSiF1CATICH
Cos 1WOO .N.•Oleo .......... •.-........... 5-25 Points+
Claris II 2u-60 Points
Moo Can N..............»•�• ........0146 Paints
......••.••.•.......... 8644 Peirce
Facilities having a rating of One through four potltts, inclusive. do not require a unified operator,
Faeilltiea having an activated sludge process vets be assigned a minimum classification of Clams 11,
FACIlittentavfng treatment processes far the nmovtd of metal or cyanide will be ssiignad a minimum classification of Class II,
Facilttes having treatment processes for the biological removal at phosphonis will be assigned a minimum cWsaincation at Class ill.
4,44.164.
.0004 DEFINITIONS
Tho foliewing dof nitbrts shall apply throughout this Subchapter.
(1) Activated Carbon Bede. A phystcavchomical method for reducing soluble organic MOW ryes tsastawator affluent; 'Me 021umn-type bed; treed In this
mothod will have * flow rate varying from two to alarm gallon; por minvts par Nears foot and May be stew upilaw or downttow Carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant alto;
(2) Aarctt.d Laeoona. A basin in which aft scuds are mslrealned In suspenstau and by which biological oxidation or organic matter is reduced through artificially
accelerated transfer of oxygen on a flow -through bins;
(o) Aeration. A process of bringing iu out inknats contact between ilr Or rtiih purftyy oxygen In a liquid by spraying, agitation Or diffustan*3a) Extended
Asratlop, An activated sludge process utilizing a minknum hydrauttc detention limo of ill hours.
(4) Agrtculwrary managed sne. Any she on which a crop if produced, managed. and harvested (C trtcludss grouse. groin* trees, eta);
5) Air Stripping. A process by which the ammonium lon Is first convened to dissolved ammonia (pH adluatment) with the ammonia then Mooted to the
atmosphere by physical means; or other similar processes which ramOve petroleum products 6uvh as benzene, toluene. and xylem;
(0) Carbon fipensratlan. The age eradon of exhausted carbon by tho use of *furnace to provide .i rcmely high temperiluroe which vo1atllIzo and oxidize the
abeobod Impurities;
(7) Carbonaceous Stage. A sl lgo of waatawater treatment doelgned to aeNeve 'seeondcry• effluent limitsi
(8) Centrifuge, A mechanical device In which antrtfugal fora is used to saparata sands fiom *odds or to separate squids of different densblae:
0Chemical Addition Systems- The admtittn of ohmiicat(e) to wsstwater as an apppaatto, poet for purpose. of improving scuds r+smovsi, pH sdjuatment.
aikallntty control, etc.; the unity tt: experfinerlt with diffamra chemicals and dffsreat application points to *Mew a specific reeuit will be considered one
system: the capability to add ehamieai(s) to dust units will be rs;t,d as oft lyst•m; OOPabilny to add a chemical at a different application palms for dclsrvnt
purposes will result Inthe systems being rated as separate •
;
(10Shifts Slus Condidontng. Thr� addition of a chnentfed oimpound such as lima. tarty chloride, or a polymer to s o; studgi to coalesce the mass prior to
Ito application to a dnwatertng device;
(11) Closed Cycte tiyatsr es,. use of holding ponds or holding tank for ooraslrumnt of westewater containing tnorganta, non•toxia Materials from sand. gravel,
crashed Ktono or other atmtlpi coaraflons. Such systems shall carry a msttmum of two points regardless d pumping facilities or any other appurtenances;
(12) Combinad Ramovr) of Carbonaoeoua B00 and Misogynous Removal by N5rfneolan• A single stage system required to BMW, Pine athrent Skulls on SCD
and ammonia nitrogen within the same biological reactor,
(ta) Dechtortnmtion► The pumat or complete reduc(tort of nsidud chicane ire pgtuld by any tlttemical or physical process:
(14) Donttrtficatton Protons• The conversion of nlfat..ntfrogsn to dtrosten pas;

.
08/ 24/ 1998 10: 08 4
PAGE 09
(ts) Electroatauyn . Process for removtt►q ionized salts from weer through tits use of ion-sefectiva ban -exchange membranes:
(t6) Fitter Press. A process operated mecherit:aRy for partially dewated sludge:
(17) Foam separation. The planned frothtrtg of wastewater or wastawatsr otUusnt as a moans of removing excessive amounts of detergent materials 1
the Introduction of 4ir in the form of fine bu lee: a4o called loam fractionation;
(ta) arts Removal. The process of 'unloving get arW other heavy mineral matter from wastewater;
(19) Imhoff Tank. A deep two story wsstewatsr tank consisting of sn upper sedimentation chamber and a lower sludge Sigestion chamber.
Rai Instrumented Flow Measurement. A dabs vadat (rdkatee and moor& rats of flow;
(21) lon ExCharrs+p's. A chemical process In wish lone from two diners's meteeulee sib osohang.di
(22) Land application:
(a) Strides Disposal. A final sludge disposal method by whkh wet sludge may bo applied to land either by spraying on the surface or by subsurface
(l o., chisel plow); (not applic*ble for types of sludge described In (11) of this Ruh]:
(b) Treated Effluent. 'rho pancoii al atprayfng treed wastewater onto a land area or other methods et application or Wastewater onto a land area a
means of final disposal or treatment;
(23) Mieroecreen. A low speed. continuously back -washed. rotating drum triton operating under grotty conditions as polishing method for removing
suspended salads from sifluen(;
(24) Nitrification Precis. Tho biochemical conyeriion of unexldlssd nttregsn (ammonia and organic nitrogen) to oxidized nitrogen (usually nitrate);
(25) Nitrogenous Stags. A separate stage of wastewater treatment designed for the specific purpose a converting ammonia nitrogen to nitrate nrtrof
(26) Phosphate Romovd. Bbrogloar. Tho renlomsf of phosphorus tram r astawatur by an oxlclanoxlc procqu dealgnsd to enhance luxury uptake of ph,
by the microorganisms;
(27) Pottehtng Pond. A holding pond following *quandary treatment with suffloient deter0tcn dnna 10 aliow settling of Ilnely suspended solids;
(26) Past Aeration. Aeration following conventional ee0ondaty trsatmet* unite to Increase effluent D.O. er ter any other pulposa;
(20) Poet Aoratten. (Oeseadi) A polishing method by which atrisotved oxygen is aaddod to the effluent by a norm$Chardcal. gravity means of flowing d
settee of stops or weirs; The flow occurring arose the steps or woks naves in a fairly thin layer and the operattnn of the cascade requires no operator
adjustment; thus. zero points tars even though thta to on essential step to meeting the [byte of the discharge permit:
(30) Powdered to Granular Activated Feed. A biophysical Cuban pmasa that utilizes bloteglcal activity and organic absorption by using poems
prat„ rqr activated caarbam; Worn or regenerated oapOon is reed controlled into the spurn;
(31) Praaeratlon. A tank ballstnietad to provide aeration prior to primery treatment:
(32) Preliminary units. Unit opendlane In the trestmera process, ouch as screening and camminut[on. that prepare this Etgugr tar subsequent major op
(33) industrial Pretreatment.
(a) rre-irvatmem unit. industrial. The 0ondNonkip of ati waste et Its source before discharge. to nsmove ar to neutralise ;abetment !n)urtous to dew
treatment procsadee Or to effect a partial reduction in load on the treatment process which is operated by the ssnw governing body as the waat•wa
tuoattnhent plans being fated;
b) Pre-treatrn ant Program. Industrial • must be a Mite or EPA required program fa receive porn*; on the rating sheet/
(34) Prkrtary Clarifiers. The first settling tanks through Which wastewser Is passed In a treatment worts; for the purpose of removing settleable end sus
solids and 800 which is associated with the sctids:
(35) Pumps. Alt Influent. effluent and instant pumps;
3 Radiation, Disinfection or itsrilintbn proem Wiling devices'mmtrne ultraviolet or gamma rays;
(37) Reverse Osmosis. A frisaullant proem In which a hoayy contaminated liquid Is presewized through a membrane laming nearfiv pure liquid tree from
suspended solids:
(36) Relating Btolegtcal Contractors. A Heed biological growth process In g$tloh wastewater Sons through tanks in which a series of partially submerged
surfaces are rusted:
(39) Sand Pillar:;:
(a) lnt*rwrinent Blotaglotd. Filtration of effhr+M foilawfng 'solo tent. or some a:her troatmsm;moese in oink t further blodeconposflen
expected to produce desired effluents; Hydraulic loading nee on these f ere computed In use and have 1 moulting low gmlef (lade than an
b) Fletincurating Wolegfeal - the same type of sand fitaar 4, defend in Subparagraph i30l (a) al ant* Rule wish Ins Wded capability to recycle otltven, t
through the sand filler;
(40) Sand or stitod.Mgdla Fulani. A poihhtn roses by which effluent limns are sctitoved enougha Waller raaidlan of suspended scads;
(a) kw rats — gravity, hydraulkatty leaded fuser with loading rates in the ono 10 Ihrve gpeNq range:
(b) high rats — a pressure. lyd►e olleeily leaded tutsr with Iaadng rates In the t)vt, gpnvd ram; At any rats, the loading rate alai exceed this* gprtVd:
(41) Secondary Clarifier. A tank which fallow, the biological unit 01 treatment plant and which has the purpose of rsntiovhtg:fudges associated with tt
biological treatment units;
(42) Separate Sludge Reiteration A part of the contact stabiiiratfen process whets the activated sludge Its tmi ferred to a tank and aerated balers raft
t4 the contact basin;
(43) Septic Tank. A singlastory wonting tank in Which Battled stodge it In contact with the wastewater flowing through the tank: shell not be swear)
aoptrc tank 'yawns serving ;MP family rsslaences havingctty of 2.000 ailbiw ar lase which discharge 10 a n;irfffcatbn
(44) Sludge D(geotion. Ths poceSe by WNCh apricot treater and �ge Is gasified. liquefied. mineralized or Convened into mom stable organic
through the acttytry of living organisms. watch lnoludee aerated holding tanks;
(45) Sludge Drying Bede, An arts comprising natural or *rtifielal layers of passes materials upon which digested sewage sludge Is dried by drainage and
evaporation:
(46) Sludge Ekririatian. A proses Of sludge oond(1101 fna in which ceft&ln conatltuante am removed by suoeesatvo washings with froth water cr plant es
(4r) 8tutsge Gas of radon. The process of using slangs gas for the purpose of healing buildings, driving engfrtss. etc.;
(48) Sludge Holding Tank (Aerated and Nona*ytad). A Tank utilized for small wastewater treatment pion* not co tafning a (Nester fa which sludge ma
ea kept fresh. and supernatant wtthdtawrt prior to a drying method (I.s. sludge drying beds), This may be done by a g a small amount of ale simply to k
sludge fresh, but not necessarily art amount that would ba required to achieve itablliatton of organic platter. A nonservatsd tank would .haply bo used
decant sludge prior to dewettering and would not allow keg periods (several days of detention) without resulting odot problems;
(49) Sludge lnClneratera. A furnace designed to bum sludge end to remove all moisture and combustible mandate and rvduos the sludge to a Senile asp
(50) Sludge Stabilization (Cham)caf or Thermal). A process to make treated Budge less odorous and ptitrsscbie, end to reduce the pathogenic orgarisan
mnrwn; This may ba done by pH adjustment. chlorin* or by heat treatment:
(51) Sludge Thickener. A type of eadknentation tank In valid; the sludge is permitted to settle and thicken through agitation and gravity;
(52 (not i Stabilization
Lagoon. A typo of oxidation Lagoon In which biological oxidation of organic metier Is situated by natural transfer of oxygen to the wa
air(53) Sland-By Power pond):
ern site or
(54) Static Screens. A staatybna screen designed t0 nsn vo solidi, inaftdt� nani.b
reduction) from municipal and Industrial weilewws or treatment systems; hod ltdattae* partkWats (Healable solids, suspended sondes and 8Qp
(55) Tertiary Treatment. A stage of treatment following eacondsry which Is primarily for the purpose of affluent polishing: A settling lagoon or sand or et
might be •ntptoysd far Oda pyrpoiel
(56) Thermal Pollution Control Devise. A device pravldbig for the transfer el heel from a fluid ilowing in tubes to another itutd outside the tubes. or vb*
or other moans of regvle titreld tenl�ierSYrae;
(57) Thermal Sludge Co di. A conditioning process by which heat In added far a protracted period of tln1e to improve the dewatenhbtilty of sludge
sotublllztng and hydroullzing of iho mailer and more highly hydrated sludge panicles:
(58) Toxic Mattreats. Those wastes or combinations of w181Ni, lncludlrq dtsstse•cauiing agents which after dschan . and upon *senate. Ingriattonon, to
4r esetmitation into any organism, either directly 'MITI nts etwironmsnt or indlrsotry by (ngestbn through food chairs. will ciuso death, dkeass, behavioral
abnormallllek eashter, canaft nutatkms, P4%4)1ogial ma)fWtadon* maunder* in rsprodudlan) or physical deformations. in such organisms
o ring; Tosk roatunast inctud*, by ery
al illustration end tot Imitation: lead, cadmium, Chum. mercury. v�m, dfuamnia. zinc. ortho-Ntro•CNorobb
(01403). polydttorfnated b(pinhnyls (pc ) and dlchtorodpheny1 tutcNorosthani (DOTI: and any other materials that have or may hereafter bo determined
cork pmpent.i;
Oa) Trickling Filter. A biological trvaunnent unit consisting ei i matsrtal such an broken stones or rock over which wastewater is distributed; A high rate tri
titter is one which aperarted a bstweef 10 and 30 shod per sore. A low rate trlalding Eider le one Which le designed to operate at one to four mad per aces
(60) Trickling Filter (Packed Tawor). A plug flew type of operatieri in which Wastewater flows down ihmugh successive layers of media or fast* material.
material is removed cottnnuatly By ttte acOie bucks f lilted growth in each successive taw. This method may produa'asmndafy'Quality affluent. or ma;
adapted to produce a Ntdited effluent;
(et) Vac um Mere Cantrpuget, or FlRer Proem. peslcss which are &stead to ',move Sauna water from either digested or undigested sludge prior to c
or further treatment.

M ill cG
ASSOC IA r L s
April 15, 1998
Mr. David A. Goodrich, P.E.
North Carolina Department of Environment,
Health and Natural Resources
Division of Water Quality
Post Office Box 29535
Raleigh, North Carolina 27626-0535
RE:
Dear Mr. Goodrich:
/0711b
APR 2Poa°�
POINT SOURCE BRANCH
NPDES Permit For Increased Capacity
Lower Creek Wastewater Treatment Plant
City of Lenoir
Caldwell County, North Carolina
On behalf of the City of Lenoir, please find enclosed three (3) copies of the Application
for Permit to Discharge Wastewater and the required $400 check for a major modification for the
above referenced facility. The plant currently holds Permit No. NC0023981 to discharge 4.08
MGD into Lower Creek. The purpose of this application is for the increase in capacity of the
plant to 6.0 MGD. Please note that this application was originally submitted on June 27, 1997,
and was returned to us by your office on March 2, 1998 due to delays in the issuance of the
Finding of No Significant Impact (FONSI). The FONSI has now been issued by NCDWQ and
has been received by the State Clearinghouse. Copies of the FONSI and the letter of
acknowledgement from the State Clearinghouse have been enclosed for your reference.
Should you have any questions regarding this application, please do not hesitate to contact
us. We look forward to your timely review and approval.
Sincerely,
McGILL ASSOCIATES, P.A.
MICHAELWARESAK, P.E.
Enclosures
cc: Jim Hipp
L.D. Hagaman, P.E.
T.S. Childers
Jim Ried
96318.01 /bridges/ 15ap8. doc
Engineering • Planning • Finance
McGill Associates, P.A. • P.O. Box 2259, Asheville, NC 28802 • 55 Broad Street, Asheville, NC 28801
704-252-0575 • FAX [phone]

04/15/1998 09:18 9197156229
DWQ CG&L
PAGE 02
James B. Hunt, Jr., Governor
North Carolina
0@mttrAh
APR 9 1998 4111
Department of AdministrationcoNs rraN ow rs &.
LOAN SECTION
Katie 0, Dorsett, Secretary,
April 6,1998
Mr. Reginald Sutton
N.C. Dept. Env. & Nat. Resources
Water Quality/Construction Grants Sect.
Parker -Lincoln Building
Raleigh NC 27601
Dear Mr. Sutton:
40.
Subject: Environmental Assessment/Finding of No Significant Impact - City of Lenoir - Proposed
Upgrade and Expansion of the Existing Wastewater Treatment Facilities
The N. C. State Clearinghouse has received the above project for intergovernmental review. This
project has been assigned State Application Number 98-E-4300-0637. Please use this number with
all inquiries or correspondence with this office.
Review of this project should be completed on or before 05/22/1998 . Should you have any
questions, please call [phone].
Sincerely,
Ms. Jeanette Furney
Administrative Assistant
Of?/Gfiviit
116 West Jones Street* Raleigh, North Carolina 27603-$003 * Telephone [phone]
State Courier 51-01-00
An Equal Opportunity/Aflimuttivc Action t;mployvr

FINDING OF NO SIGNIFICANT IMPACT
AND ENVIRONMENTAL ASSESSMENT
UPGRADE AND EXPAND THE EXISTING
WASTEWATER TREATMENT FACILITIES
LENOIR, NORTH CAROLINA
AGENCY: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT • •
AND NATURAL RESOURCES
CONTACT: JOHN R. BLOWE, P.E., CHIEF
CONSTRUCTION GRANTS AND LOANS SECTION
DIVISION OF WATER QUALITY
P.O. BOX 29579
RALEIGH, NORTH CAROLINA 27626-0579
April 3,1998

FINDING OF NO SIGNIFICANT IMPACT (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 been 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:
Project Number:
Project Description:
Lenoir, North Carolina
CS370393-03
The proposed project consists of upgrading and expanding the
existing 4.08 mgd plant to a 6.0 mgd treatment facility.
Total Project Cost: S3,559,300
Revolving Loan Amount: $3,512,700
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 information in the facilities plan, a public hearing document, and reviews
by governmental agencies. An environmental assessment supporting this action is
attached. This FNSI 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 working
days after notification that the FNSI has been published in the North Carolina
Environmental Bulletin.
Sincerely,
1
V 4J—a
A. Preston Howard, Jr., P,E, Director
Division of Water Quality
r

ENVIRONMENTAL ASSESSMENT
A. Proposed Facilities and Actions
Figure 1 identifies the site of the proposed improvements to the existing wastewater
treatment facilities.
Treatment Facilities. The existing 4.08 mgd treatment plant will be upgraded and
expanded to a 6.0 mgd treatment facility. The primary improvement to the existing plant
consists of converting the existing aeration basin and the previously abandoned sludge
holding basin to a biological nutrient removal treatment system. Biological nutrient
removal equipment will include multiple aeration blowers, air diffusers in the bottom of
the aeration basin, and mixers in the anaerobic and anoxic basins. The influent pumps
and return sludge pumps will be upgraded, and the piping system will be modified.
Additional improvements will also consist of providing an emergency generator, a new
grit removal system, a new bar screen, a diffused air system for the digester, covers for
some of the existing sludge units, and electrical modifications. An odor control system
will be installed to reduce or eliminate odor complaints. The clarifiers and the chlorine
contact basin have already been sized to handle a flow of 6.0 mgd. Effluent will continue
to be discharged into Lower Creek. The method of land applying digested sludge will
continue.
B. Existing Environment '
Topography and Soils. The city of Lenoir is located in Caldwell County. Topography
in the service area is characterized by broad, rolling ridges and valleys. The service area
generally drains to the south toward Lower Creek, and the other tributaries flow toward
the Catawba River. Most of the soils in the area are well drained.
Surface Waters. Lenoir is located in the Catawba River Basin. The effluent
from the wastewater treatment plant is discharged into Lower Creek, which is
experiencing problems with sedimentation and elevated fecal coliform levels due to non -
point and point source discharges.
Water Supply. The city of Lenoir receives potable water from Lake Rhodhiss, which is
located on the Catawba River.
C. Existing Wastewater Facilities
Lenoir's Lower Creek treatment plant was originally designed for 6.0 mgd. In 1987 the
plant was modified to a 4.08 mgd facility. The change was necessary to treat the low
flows and to reduce operating requirements. Existing facilities include a mechanical bar
screen, grit removal equipment, an influent pump station, an aeration basin with floating
aerators, circular clarifiers, a chlorine contact chamber, and sludge handling equipment.

The sludge facilities consist of two sludge holding lagoons, a dissolved air flotation
thickener, a digester/sludge holding tank, a belt filter press for dewatering, and lime
stabilization equipment.
D. Need for Proposed Facilities and Actions
The city of Lenoir's 4.08 mgd wastewater treatment plant is not able to consistently meet
the existing summer ammonia nitrogen effluent limitation. A Special Order by Consent
(SOC) requires the treatment plant to be upgraded to comply with the established effluent
limitations. Accordingly, the existing effluent limitations (summer/winter) are BOD5
=30/30 mg/1, TSS=30/30 mg/1, Fecal Coliform=200/100 ml, and NH3-N=7/n.a. mg/1.
Although the existing 4.08 mgd facility has an average daily flow of 2.2 mgd, the city
desires to expand the plant to the originally permitted capacity of 6.0 mgd. This action
will facilitate the city's desire to process additional amounts of wastewater from the
Lenoir area, as well as flows from nearby towns. An increase in the hydraulic capacity
requires more stringent effluent limitations to protect water quality in Lower Creek.
Speculative effluent limitations (summer/winter) for the proposed treatment plant are
BOD5=22/30 mg/1, TSS=30/30 mg/1, NH3-N=2/4.6 mg/1, Fecal Coliform=200/100 ml,
Dissolved Oxygen=5/n.a. mg/1, Residual Chlorine=28 ,ug/1, and pH=6.0-9.0 SU. An
effluent limitation for phosphorus will not be required, but the plant will be designed to
reduce phosphorous to an effluent concentration of 2 mg/1. Moreover, the city has
already installed a dechlorination facility to comply with the speculative effluent
limitation of 28 micrograms per liter. An odor control system will also be incorporated
into the project.
E. Alternatives Analysis
The city of Lenoir needs to make significant improvements to the existing wastewater
treatment facilities to process future flows, comply with sludge requirements, achieve
more stringent effluent limitations, and adhere to the SOC. 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 protect water quality in Lower Creek. An optimum plant
operation will not achieve the desired results because additional treatment capacity is
required to process future flows, and the existing treatment facilities do not have the
capability to provide nutrient removal to protect water quality. Additionally, various
operational changes have been made in an attempt to achieve compliance with the
effluent limitation for ammonia nitrogen. Past efforts have not produced the desired
results, and the new NPDES permit will require even more stringent effluent limitations.
A spray irrigation system was investigated and determined not to be the most feasible
solution for solving the wastewater treatment problem. The existing treatment plant was
originally designed for 6.0 mgd, and some of the components are presently sized to
2

handle this amount of flow. Also, most of the existing equipment at the treatment plant is
in good condition, and many components can be used in the future treatment process.
Therefore, upgrading and expanding the existing treatment plant was determined to be
the most cost-effective approach. This alternative has the lowest present -worth value, and
it is the selected alternative.
F. Environmental Consequences, Mitigative Measures
All of the proposed improvements to the treatment plant will take place at the existing
treatment plant site owned by the city of Lenoir. The Department of Cultural Resources
is not aware of any properties of architectural, historic, or archaeological significance that
would be affected by the project. North Carolina's Wildlife Resources Commission does
not object to the selected plan. The Corps of Engineers will evaluate the proposed plan
and provide confirmation if authorization is required to construct the proposed facilities
in jurisdictional areas. The U.S. Fish and Wildlife Service does not object to the
proposed construction. However, the Service has expressed some concerns about the
indirect impacts of development in the expanded service area. Accordingly, the city of
Lenoir has acknowledged that the Planning and Zoning Department evaluates new
developments for compliance with existing regulatory measures. The city has further
indicated that the adoption of additional ordinances will be considered if detrimental
environmental impacts occur from increased development. Additionally, the city of
Lenoir has agreed to encourage developers to take voluntary measures to protect streams
from detrimental effects of sedimentation. This. objective will be accomplished by the city
(a) distributing a voluntary erosion and sedimentation control document to all building
permit applicants, (b) posting a flyer in all city buildings notifying potential developers of
the city's desire to protect streams and lakes from sedimentation, and (c) providing the
voluntary erosion and sedimentation control document to the Lenoir Chamber of
Commerce and the Caldwell County Economic Development Commission for distribution
to all perspective businesses and industries. The U.S. Fish and Wildlife Service has also
requested the city of Lenoir to implement a greenway master plan. The city has already
developed a preliminary greenway plan to minimize the environmental impacts of indirect
and secondary development and implementation of the first phase is anticipated during
the next fiscal year.
G. Public Participation, Sources Consulted
A public hearing was held May 29, 1997 on the proposed project to upgrade and expand
wastewater treatment facilities. The hearing covered problems of the existing facilities,
need for the proposed improvements, and cost to implement the selected alternative.
Property owners adjacent to the treatment plant have expressed concerns about odor
problems. The city will remove the old sludge from the sludge basins and install odor
control equipment. The proposed changes will be implemented to reduce or eliminate
3

odor problems. A customer using 5,000 gallons of water currently pays $8.00 per month
for sewer service. The proposed project will result in a typical customer paying
approximately $8.71 per month for sewer service.
Sources consulted about this project for information or concurrence included:
1) City of Lenoir
2) North Carolina Department of Environment and Natural Resources
-Wildlife Resources Commission
- Division of Parks and Recreation
- Division of Air Quality
-Groundwater Section
- Division of Environmental Health
- Water Quality Section
-Division of Pollution Prevention & Environmental Assistance
-Division of Forest Resources
-Asheville Regional Office
- Legislative and Intergovernmental Affairs
3) North Carolina Department of Cultural Resources
4) North Carolina State Clearinghouse
5) U.S. Fish and Wildlife Service
4

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DISCHARGE LOCATION
LOWER CREEK
WASTEWATER TREATMENT
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NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
April 3, 1998
Honorable Jerry N. Brooks, Mayor
City of Lenoir
P.O. Box 958
Lenoir, North Carolina 28645-0958
McGILL ASSOC. • FILE COPY
RECEIVED
APR 9 1993
Project #
file #
SUBJECT: FNSI Advertisement
Wastewater Treatment Facilities
Project No. CS370447-04
Dear Mayor Brooks:
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) working 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,
\ • Cc)ce41-1,-
T. Allen Wahab, P.E., Assistant Chief
for Engineering Branch
RS/nw
Attachment
cc: Asheville Regional Office
McGill Associates
Reg Sutton
FEU/PMB/DMU
CONSTRUCTION GRANTS a LOANS SECTION
P.O. BOX 29579, RALEIGH, NORTH CAROLINA 27626-0579
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - S0% RECYCLED/10% POST -CONSUMER PAPER