NC0051918_Permit (Issuance)_19981123

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0051918
Cleveland County WTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Application
Instream Assessment (67b)
Environmental
Assessment (EA)
Permit
History
Document Date:
November 23, 1998
Thin document is printecl on reuse paper - ignore any
content on the roes erne 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
November 23, 1998
Mr. Gary Downs
Cleveland County Sanitary District
P.O. Box 788
Lawndale, North Carolina 28090
ATA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Issuance of NPDES Permit NC0051918
Cleveland County WTP
Cleveland County
Dear Mr. Downs:
The Division received your application for a wastewater discharge permit on June 24, 1998.
Division personnel have reviewed and approved your application. Accordingly, we are forwarding the
attached NPDES discharge 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, and as subsequently amended.
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
demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division
may require modification or revocation and reissuance of the permit.
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, the
Coastal Area Management Act or any other Federal or Local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Paul Clark at telephone
number [phone], extension 580.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P. E.
cc: Central Files
Mooresville Regional Office/Water Quality Section
Mr. Roosevelt Childress, EPA
NPDES Unit
Point Source Compliance Enforcement Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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Permit No. NC0051918
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,
Cleveland County Sanitary District
is hereby authorized to discharge wastewater from a facility located at
Cleveland County Water Treatment Plant
NCSR 1004 (Casar Road)
Lawndale
Cleveland County
to receiving waters designated as the First Broad River in the Broad River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof.
The permit shall become effective January 1,1999
This permit and the authorization to discharge shall expire at midnight on August 31, 2003
Signed this day November 23,1998
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

SUPPLEMENT TO PERMIT COVER SHEET
Cleveland County Sanitary District
is hereby authorized to:
Permit No. NC0051918
1. Continue to operate an existing raw water intake sand settling tank (001) and a sludge lagoon,
sludge thickening tank, and sludge drying beds (002) located at Cleveland County Water
Treatment Plant, NCSR 1004 (Casar-Lawndale Road), Lawndale, Cleveland County (See
Part III, A of this permit), and
2. Discharge from said treatment works at the location specified on the attached map into the
First Broad River (Class WS-IV waters) in the Broad River Basin.

001-Latitude: 35° 25' 39"
001-Longitude: 81° 33' 41"
002-Latitude: 35° 25' 39"
002-Longitude: 81° 33' 41"
USGS Quad #: F12NE
River Basin #: 030804
Receiving Stream: First Broad River
Stream Class: WS-IV
Cleveland Co. San. Dist.
NC0O51918
Cleveland County
Cleveland Co. XUTP

A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0051918
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from sand settling tank for
intake water from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT. CHARACTERISTICS
Flow
Total Suspended Solids
Settleable Solids
Turbidity
LIMITS
MONITORING REQUIREMENTS
Monthly
Average.
Weekly
Average
Daily Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
30.0 mgll
0.1 mill
2
45.0 mg/l
0.2 ml/I
2
Quarterly
Quarterly
Quarterly
Quarterly
Instantaneous
Grab
Grab
Grab
E
U,D
Notes:
I Sample locations: E - Effluent, U - Upstream, D - Downstream.
2 The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity exceeds these levels due to natural background
conditions, the discharge level cannot cause any increase in the turbidity in the receiving water.
All samples collected should be of a representative discharge.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Permit No. NC0051918
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge filter backwash and
supernatant from outfa11002. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS 4
:...
' LIMITS _ =
MONITORING REQUIREMENTS
MonthlyWeekly
onthl
Average
Average '
Daily Maximum
Measurement
Frequency
Sample
Type
Sample
Location1
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mgll
45.0 mg/1
2/month
Grab
E
Settleable Solids
0.1 ml/I
0.2 ml/I
Weekly
Grab
E
Turbidity
2
2
Weekly
Grab
U,D
Iron
Weekly
Grab
E
Total Residual Chlorine
Weekly
Grab
E
Aluminum
Weekly
Grab
E
Notes:
Sample locations: E - Effluent, U - Upstream, D - Downstream.
2 The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity exceeds these levels due to natural background
conditions, the discharge level cannot cause any increase in the turbidity in the receiving water.
All samples collected should be of a representative discharge.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

RECEIVED OCT 2
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
To; ,
From:
October 21,1998
Hornlean Chen
Division of Environmental Health
Kim Murphy t \
Subject: Review of DRAFT PERMIT
Cleveland County WTP
Cleveland County
NC0051918
9 199R
DEHNR747FAI
1,„
Please indicate below your agency's position or viewpoint on the DRAFT permit and
return this form by 11/16/98. If you have any questions on the draft permit, please
contact Paul Clark at 919/733-5083 ext. 580.
RESPONSE:
This agency has reviewed the draft permit and determined that the proposed
discharge will not be sufficiently close to any existing or know proposed
public water supply intake so as to create an adverse effect on water quality.
We concur with the issuance of this permit provided the facility is operated
and maintained properly, the stated effluent limits are met prior to discharge,
and the discharge does not contravene the designated water quality standards.
Concurs with issuance of the above permit, provided the following conditions
are met:
Opposes the issuance of the above permit, based on reasons stated below, or
attached:
ill J O) /9 o
Signed Date:
cn
N
a"
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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THE SHELBY STAR
MS FRANCES CO 11 EN
NCDENR/DWQ/BUJDGET OFFICE
P 0 BOX 29535
RALEIGH NC 27626-0535
OCTOBER 09, 1998
LEGAL ADVERTISEMENT
NORTH CAROLINA
CLEVELAND COUNTY
I, Kent Kilpatrick, Director of Operations
of the SHELBY STAR, a newspaper
published in Shelby, N.C., do
solemnly swear that the advertisement
hereto annexed appeared in the Shelby Star
for one successive week (s)/day (s) beginning
,10% 8
Director of Operations
Sworn to and subscribed before me
on this t e 9TH DAY OF OCTOBER 1998
Notary Public
My commission expires 02/10/2002

PUBLIC NOTICE STATE OF
NORTH CAROLINA ENVI-
RONMENTAL MANAGE-
MENT COMMISSION
POST OFFICE BOX 29535
RALEIGH, NORTH CAROLI-
NA 27626-0535
NOTIFICATION OF INTENT
TO ISSUE A STATE NPDES
PERMIT
One the basis of through staff
review and application of Arti-
cle 21 of Chapter 143. General
Statutes of North Carolina,
Public Law 92-500 and other
lawful standards and regula-
tions, the North Carolina Envi-
ronmental Management Com-
mission proposes to issue a
permit to discharge to the per-
sons listed below effective
11/23/98 and subject to special
conditions.
Persons wishing to comment
upon or object to the proposed
determinations are invited to
submit same in writing to the
above address no later than
11/9/98. All comments re-
ceived prior to that date will be
__considered in the formulation
of final determinations regard-
ing the proposed permit.
A copy of the draft permit is
available by writing or calling
the Division of Environmental
Management, P.O. Box
29535, Raleigh, North Caroli-
na 27626-0535, (919) 733-
7015.
The application and other in-
formation may be Inspected at
these locations during normal
- office hours. Copies of the in-
formation on file are available
upon request and payment of
the costs of reproduction. All
.such comments or requests
regarding a proposed permit
should make reference to the
NPDES permit number listed
below.
Date: October 2, 1998
For: A. Preston Howard Jr..
. P.E. Director
Division of Environmental
Management
_.Public notice of intent to issue
a State NPDES permit to the
following:
1.NPDES No. NC0020737.
City of Kings Mountain. PO
._Box 429 Kings Mountain, NC
28086 has applied for a permit
renewal for a facility located at
the Pilot Creek WWTP, US
Highway 74 Bypass. near
Shelby in Cleveland County.
The facility discharges 6.0
MGD of treated domestic and
industrial wastewater from one
outfall into Buffalo Creek. a
Class C stream in the Broad
River Basin. BOD5. ammonia,
dissolved oxygen. lead. cadmi-
um. and mercury are water
quality limited. For some pa-
rameters. the available load
capacity of the immeciate re-
ceiving water will Se con-
sumed. This may affect future
water quality based effluent
limitations for additiorais dis-
chargers within this cordon of
the watershed.
2.NPDES No. NC0051018.'
Cleveland County Sanitary
District, P.O. Box 768. Lawn -
dale, NC 28090 has applied
for a permit renewal for a facil-
ity located at Cleveland County
Water Treatment Plant.
NCRS 1004 (Casar-Lawndale
Road), Lawndale. Cleveland
County,. The facility is per-
mitted to discharge treated
wastewater from one outfall in-
to First Broad River. a Class
WS-IV stream in the Broad
River Basin. No parameters
are water quality limited, but
this discharge may affect fu-
lure allocations.
3.NPDES Nn N00027117
5. NPDES No. NC0063797.
Mr. Leonard Yelton, 1056 Col-
lege Avenue, Shelby NC
28150 has applied for a permit
of renewal for a facility located
at whispering Pines Rest
Home, 1056 College Avenue.
Shelby, Cleveland County.
The facility discharges 0.0025
MGD of treated domestic
wastewater from one outfall :nto
Sugar Branch, a Class C
stream in the Broad River Ba-
sin. No parameters are water
quality limited, but this dis-
charged may affect future allo-
cations.
6.NPDES No. NC0065242
Town of Grover, PO Box 189,
Grover, NC 28073 has applied
for a permit renewal for a facility
located at the Grover
Wastewater Treatment Plant
on NCSR 2235, north of Gro-
ver, Cleveland County. The fa-
cility discharges 0.100 MGD of
treated domestic wastewater
from one outfall into an un-
named tributary to Buffalo
Creek. a«ill:ss C stream in the
Broad River Bash r which has a
7010 flow of 0.58 cfs. Ammonia
is water quality limited. For
some parameters, the
available load capacity of the
immediate receiving water will
be consumed. This may affect
future water quality based ef-
fluent limitations for additional
dischargers within this portion
of the watershed.
7.NPDES No., tfC0079740
The City` ci Kings Mountain.
P.O. Box 429, Kings Mountain.
NC 28086 has applied for
a permit renewal for a facility
located at the T.J. Ellison Water
Treatment Plant on Oak
Grove Road, West of Kings
Mountain, Cleveland County.
The facility discharges treated
filter backwash water. sludge
basin decant, and filtrate water
from one outfall into Buffalo
Creek, a Class C stream in the
Broad River Basin. No param-
eters are water quality limited,
but this discharge may affect
future allocations.
8.NPDES No. NC0005061 Jef-
ferson Smurfit Corporation.
PO Box 369 Shelby, NC
28150 has applied for a site
on NCRS 1313. northwest of
Shelby in Cleveland County.
The facility discharges 0.010
MGD of treated domestic and
industrial wastewater, and
non -contact cooling water from
two outfalls into East Fcrk
Beaverdam Creek, a Class C
stream in the Broad River Ba-
sin. No parameters are water
quality limited, but this dis-
charge may affect future allo-
cations.
9.NPDES No. NC0066401
Cleveland County Board of
Education, 866 Poplar Springs
Church Road, Shelby, NC
28152 has applied for a permit
renewal for a facility located at
Crest High School. Cleveland
County. The facility discharges
0.0175 MGD of treated do-
mestic wastewater and cooling
water from two outfalls into an
unnamed tributary to Bea-
verdam Creek. a Class C
stream in the Broad River Basin
whicn has a 7010 flow of
0.68cfs. No parameters are
water quality limited. but this
discharge may affect future al-
locations.
10.NPDES No. NC0066460
Cleveland County Board of
Education, 866 Poplar Springs
Church Road, Shelby. NC
28152 has applied for a permit
renewal for a facility located at
Crest Middle School, northwest
of Shanghai, Cleveland
County. The facility discharges
0.020 MGD of treated domestic
wastewater and tooting
water from two outfalls into
rameters, the avaitap�
capacity of the imm
ceiving water will be nsurrws f,
This may affect tuft.
water quality based ettlur.
limitations for additional r:
chargers within this portion
the watershed.
14.NPDES No. NC00663
Cleveland County Board
Education. 866 Poplar Spnr
Church Road, Shelby. •
28152 has applied for a pc -
renewal for a facility at Ca:
Elementary School on NC;
1518, north of Casar. Cteve!e.
County. The facility discharr.
0.0066 MGD
treated domestic wastewa•
from one outfall into an
named tributary to Crook
Run Creek, a Class C strer
in the Broad River Basin wh.
has a 7Q10 flow of ocfs ant
3002 flow of 0 cfs. Ammon
BOD5 and dissolved oxyg•
are water quality limited.
some parameters,
available load capacity of
immediate receiving water
be consumed. This may atfe
future water quality based
fluent limitations for addttior
dischargers within this portic
of the watershed.
15,NPDES No. NC00664�
Cleveland y
• .:ray Boa,^
Election. 866Poplar Sprig-
Church Road. Shelby.
28152 has applied for a cer-
renewal for a facility
at Burns High School on
Highway 182 East. west
Fallston, Cleveland Cour
The facility discharges 0.0'
MGD of treated dome_
wastewater and cooling :va:
from two outfalls into an -
named tributary to Ma_
Creek. a Class C stream in
Broad River Basin which has
7010 flow of 0 cfs and a 3C'
flow of 0 cfs. BOD5. ammcr
and dissolved oxygen are ova::
quality limited. For sc-
parameters, the available Ic:
capacity of the immedate
ceiving waters will be utilize
and more stringent waver al.:
ity based effluent limitatic
may be established for
chargers downstream.
16.NPDES No. NC00422:
Speciality Lighting. Inc. P
Box 1680. Shelby.
28151-1680 has applied lc:
permit renewal for a facility
cated at 639 Washburn Swtr _
Road Shelby. Cleveia-
County. The facility discharr:
0.01 MGD of treated dory:;
wastewater from
outfall, and non -contact cc.:.
water from a second cc
into East Fork Beavero-.
Creek. a Class C stream in
Broad River Basin. BOD.
monia, Fecal Coliform, PH
residential chlorine are
quality limited. For some
rameters, the available lo_
capacity of the immediate
ceiving water will be consume.
This may affect tutu
water quality based efflue
limitations for additional c:_
chargers within this portion
the watershed.
17.NPDES No. NC00323•:
Roadside Truck Plaza in:
P.O. Box 846. Kings Mount
NC 28086 has applied -
a permit renewal for a fac:
located at Roadside Truck
za. Inc. 1-85 and Dixon Sci.c:
Road. Kings Mountain C:e:
land County. The facility
charges 0.0145 MGD
treated domestic wastewat =
(Outfall 001) and 0.005 MC:-
of treated water from
Oil/Water Separator
002) into Dixon Branch tci.,•'-
001) and Kings Creek to'.:::
002), a Class C stream in :-
Broad River Basin which has
7010 flow of 0.2 cfs. For som
parameters, the available ioar
capacity of the immediate

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
2/60,11
Facility Information
Applicant/Facility Name
Cleveland County Sanitary District
Permit No.
NC0051918
Permitted Flow:
None specified (WTP)
Facility Class:
I
Facility/Permit Status:
(i.e. New, Modification,
Existing or Renewal)
Renewal
County:
Cleveland
Stream (haracterisfics
Receiving Stream:
First Broad River
Stream Classification:
W S-IV /-50 a (g J 83q
Subbasin:
030804
Drainage Area (mi2):
Not calculated (not necessary for WTP)
Summer 7Q10 (cts)
Not calculated (not necessary tor WTP)
Winter 7Q10 (cts):
' Not calculated (not necessary for WTP)
30Q2 (cis):
Not calculated (not necessary for WTP)
Average Flow (cfs):
Not calculated (not necessary for WTP)
I W C (%):
Not calculated (not necessary for WTP)
Miscellaneous
Regional Office:
Mooresville
USUS 'l'opo Quad:
F 12NE, Lawndale
Changes Incorporated into Permit Renewal
Proposed Changes
Parameters Affected
Basis for change(s)
Elimination of monitoring at
001 and 002
pH
Not required of W'i'Ps (see C.
Sullins' 9/30/92 memo)
Compliance Summary
No compliance evaluation inspections in 1997 or 1998??
- 960313 — Compliance Evaluation Inspection conducted by P. Beam indicated the
several violations. Inspection report included ATC for sludge facilities never issued ,L ,h•,
and recommended elimination of outfall 001 (among other items). It also �,,��
mentioned that outfall 002 should be modified so that it does not flow over the
ground, but directly to river (why?). Region, please comment. '" 4,...' "'^e
- Review of DMRs from March 1996-January 1998 indicated that outfall 001 has not r, ta% l
been eliminated and the following range of parameters:
- TRC(002): 0-420 ug/1 t r r / -
- TSS(001): 0.1-22, TSS (002): 0-50 mg/1 c
- SS(001and002): <0.01-<0.1
- Turbidity(001): 4-41 NTU, Turbidity(002): 3-41 NTU
- Fe: 0.1-3.33 mg/1
- Al: 20-1800 ug/1
- Instream monitoring at 001 and 002 indicated turbidity generally increases slightly
from up- to downstream and generally is less than 10 NTU at both locations.
ec
Page 1 of 2
version980731
e A iA
. DO/

DENRJDWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
WLA Summary
Standard WTP monitoring requirements (see C. Sullins memo 9/30/92) will remain in
permit. Alum compound used in treatment process and therefore, aluminum is
monitored in the effluent.
Shelby WTP and several other facilities discharge several miles downstream of the
Cleveland County Sanitary District WTP.
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice: 10/7/98
Permit Scheduled to Issue: 11/23/98
State Contact
If you have any questions on any of the above information or on the attached
permit, please contact Paul Clark at [phone], extension 580.
Copies of the following are attached to provide further information on the permit
development:
• Existing permit effluent sheets with changes noted (existing facilities only)
• Draft Permit
NPDES Recommendation by:
Regional Office Comments
Regional Recommendation by:
Reviewed By:
Regional Supervisor: Date:
NPDES Unit: Date:
Date: /0
Date:
Page 2 of 2
version980731

A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Permit No. NC0051918
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge raw water sand settling
tank w rom outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
in L _ c ,
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily Maximum
Measurement
Sample
Type
Sample
Location1
Frequency
How
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/I
45.0 mg/I
2/month
Grab
E
Settleable Solids
0.1 ml/l
y 0.2 ml/l
Weekly
Grab
E
Turbidity
2
Weekly
Grab
U,D
Notes:
1 Sample locations: E - Effluent, U - Upstream, D - Downstream.
2 The discharge shall not cause the turbidity of the receiving water to exc d 50 NT If the turbidity exceeds these levels due to natural background
conditions, the discharge level cannot cause any increase in the turbidi in the receive ater.
All samples collected should be of a representative discharge.
There shall be no discharge of floating solids or visible foam in oththan trace
0/ A peez, _4-15 ,ht.otei
Coxed �-d �t / 4 w C/Lcj Co 4C' ,V G i (AMR,
> vw 1v .- /J °t mg ,.014 4eY4k 44.4 Z p-z‘V ae 67 6a
4d-ti) 4i44 % iiral°4`1, 7A4-4- ar's14.° /4a V-0-2-AL-1
I3a Dn a iffyu cij Z�ii- S

001-Latitude: 35° 25' 39"
001-Longitude: 81° 33' 41"
002-Latitude: 35° 25' 39"
002-Longitude: 81° 33' 41"
USGS Quad #: F12NE
River Basin #: 030804
Receiving Stream: First Broad River
Stream Clgss: WS-IV
Cleveland Co. San. Dist.
NC0051918
Cleveland County
Cleveland Co. NIV P

EHNR - ENVIRONMENTAL MANAGEMENT
.0306 BROAD RIVER BASIN
r N f Stream
ame o
2B .0300
Description
Class
Classification
Date Index No.
Grassy Branch
Crooked Run Creek
First Broad River
First Broad River
Knob Creek (Big Knob
Creek)
Poundingmil.l Creek From source to Knob Creek
Adams Branch From source to Knob Creek
Little Knob Creek From source to Knob Creek
Bald Knob Creek From source to Little Knob Creek
Maple Creek From source to First Broad River
Bracketts Creek From source to First Broad River
Magness Creek From source to First Broad River
Shoal Rock Creek From source to First Broad River
Big Harris Creek From source to First Broad River
Little Harris Creek From source to Big Harris Creek
Williams Creek From source to First Broad River
First Broad River
Unnamed Tributary between
Shelby Raw Water Intakes
(North Club Lake)
Unnamed Tributary between
Shelby Raw Water Intakes
First Broad River
Brushy Creek
East Fork Brushy Creek
West Fork Brushy Creek
Flag Branch
Little Creek
Hickory Creek
Beams Jake
Little Hickory Creek
Sulphur Springs Branch
(Little Hickory Creek)
Logan Branch
Shoal Creek
Bear Creek
Beaverdam Creek
From source to First Broad River
From source to First Broad River
From a point 0.3 mile downstream of
Crooked Run Creek to Cleveland
County Sanitary District Raw Water
Supply Intake
From Cleveland County Sanitary
District Raw Water Supply Intake to
a point 1.0 mile upstream of Shelby
downstream Raw Water Intake
From source to First Broad River
Ws -Iv
WS-IV
WS-IV CA
WS-IV
8/3/92
8/3/92
8/3/92
9-50-17
9-50-18
9-50-(18.5)
8/3/92 9-50-(18.7)
WS-IV 8/3/92 9-50-19
WS-IV 8/3/92 9-50-19-1
WS-IV 8/3/92 9-50-19-2
WS-IV 8/3/92 9-50-19-3
WS-IV 8/3/92 9-50-19-3-1
WS-IV 8/3/92 9-50-20
WS-IV 8/3/92 9-50-21
WS-IV 8/3/92 9-50-23
WS-IV 8/3/92 9-50-24
WS-IV 8/3/92 9-50-25
WS-IV 8/3/92 9-50-25-1
WS-IV 8/3/92 9-50-26
From a point 1.0 mile upstream of WS-IV CA 8/3/92 9-50-(26.5)
Shelby downstream Raw Water Intake
to Shelby downstream Raw Water Intake
From source to a point 0.5 mile WS-IV 8/3/92 9-50-27-(1)
upstream of mouth
From a point 0.5 mile upstream of WS-IV CA 8/3/92 9-50-27-(2)
mouth to First Broad River
From Shelby Downstream Raw Water
Intake to Broad River
From source to First Broad River C 9/1/74 9-50-29
From source to Brushy Creek C 9/1/74 9-50-29-1
From source to Brushy Creek C 9/1/74 9-50-29-2
From source to Brushy Creek C 9/1/74 9-50-29-3
From source to Brushy Creek C 9/1/74 9-50-29-4
From source to First Broad River C 7/1/73 9-50-30
Entire lake and connecting stream to C 7/1/73 9-50-30-1
Hickory Creek
From source to Hickory Creek
From source to Hickory Creek
From source to Sulphur Springs Branch
From source to First Broad River
From source to Shoal Creek
From source to First Broad River
C 3/1/63 9-50-(28)
C 7/1/73 9-50-30-2
C 9/1/74 9-50-30-3
C 9/1/74 9-50-30-3-1
C 9/1/74 9-50-31
C 9/1/74 9-50-31-1
C 9/1/74 9-50-32
10

SOC PRIORITY PROJECT JUL 30 Ali 8: ;'5
If Yes, SOC No._
To: Permits and Engineering 1
Water Quality Section
Attention: Paul Clark
Date: July 28, 1998
NPDES STAFF REPORT AND RECOMMEN
County: Cleveland
Permit No. NC0051918
PART I - GENERAL INFORMATION
If,
r
1. Facility and Address: Cleveland County Sanitary District
Water Treatment Plant
Post Office Box 788
Lawndale, N.C. 28090
2. Date of Investigation: July 22, 1998
3. Report Prepared By: Samar Bou-Ghazale, Environmental Eng. I
4. Persons Contacted and Telephone Number: Ms. Amelia Hamrick,
ORC; Tel# [phone].
5. Directions to Site: From the junction of NC Hwy 182 and SR
1004 (Casar Road), travel north on SR 1004 approximately 1.3
miles. The WTP is located on the left (west) side of the
road.
6. Discharge Point(s). List for all discharge points:
Latitude: 35°26'01" Longitude: 81°34'00" (outfall 001)
Latitude: 35°25'56" Longitude: 81°33'55" (outfall 002)
Attach a U.S.G.S. map extract and indicate treatment facility
site and discharge point on map.
U.S.G.S. Quad No.: F 12 NE U.S.G.S. Name: Lawndale, N.C.
7. Site size and expansion are consistent with application?
Yes x No If No, explain:
8. Topography (relationship to flood plain included): Slopes
range from 2 to 4 0 . The site is not located in a flood plain.

9. Location of nearest dwelling: None within 500 feet.
10. Receiving stream or affected surface waters: First Broad River
a.
b.
c.
PART II
1. a.
b.
c.
d.
Classification: WS-IV
River Basin and Subbasin No.: Broad; 030804
Describe receiving stream features and pertinent
downstream uses: The receiving stream is a moderate
sized river with a rocky/sandy bottom. General C
classification uses downstream. The City of Shelby has
a water supply intake located several miles downstream.
- DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
Volume of wastewater to be permitted: N/A
What is the current permitted capacity of the
treatment facility? N/A
Actual treatment capacity of the current
(current design capacity)? N/A
wastewater
facility
Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: N/A
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: The
existing wastewater treatment facilities consist of a
sludge pond, a thickening hopper and a drying bed.
Supernatant is discharged from the sludge pond to the
river. The residuals are being taken to the Cleveland
County landfill.
f. Please provide a description of proposed wastewater
treatment facilities: N/A
g. Possible toxic impacts to surface waters: None at this
time.
h. Pretreatment Program (POTWs only): N/A
2. Residuals handling and utilization/disposal scheme: Reisduals
are being taken to the Cleveland County landfill.
a. Other disposal/utilization scheme (specify):
Page 2

3. Treatment plant classification (attach completed rating
sheet) : Class I
4. SIC Code(s): 4 941
Wastewater Code(s) of actual wastewater, not particular
facilities, i.e., non -contact cooling water discharge from a
metal plating company would be 14, not 56.
Primary: 21 Secondary:
Main Treatment Unit Code: 510 3
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved (municipals only)?
N/A
2. Special monitoring or limitations (including toxicity)
requests: None at this time.
3. Important SOC, JOC or Compliance Schedule dates: (please
indicate) N/A
4. Alternative Analysis Evaluation: Has the facility evaluated
all of the non -discharge options available. Please provide
regional perspective for each option evaluated.
Spray Irrigation: N/A
Connection to Regional Sewer System: N/A
Subsurface: N/A
Other Disposal Options: N/A
5. Air Quality and/or Groundwater concerns or hazardous materials
utilized at this facility that may impact water quality, air
quality, or groundwater: No AQ/GW or hazardous
material concerns.
6. Other Special Items: N/A
PART IV - EVALUATION AND RECOMMENDATIONS
Page 3

The permittee, Cleveland County Sanitary District, has applied
for permit renewal. The permit is for the discharge of water from
the sand tank at the raw water intake outfall (001) and supernatant
from the sludge lagoon outfall (002).
It is recommended the subject permit be issued.
if1,
cE,
Water Quality Regiorfal Supervisor
Date
i
Page 4

k

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: l LCt2 /,4&7 L c2 iiv) 5r-/(rs 1 1 /i-�7 +); 5 i s c.
Owner or Contact Person: /',M�l i/f //A/"1/'I t . , o , C
Mailing Address: Pry Ro X DAL i- Jv'C ZC 9
County: G/t✓-rCAW Telephone: !7o4-.-' 3 S— `/i: ;
Present Classification: New Facility Existing Facility
NPDES Per. No. NC00 5 1 d% Nondisc. Per. No.WQ Health Dept.Per No.
Rated by: SgtiV gOAI-C OVA LE Telephone: //)f (n -/6f f Date: %'Z-2
Reviewed by: Health Dept. Telephone:
ORC: AN>�1//-? f/ Q/'/ '/CA
Check Classification(s): Subsurface
Wastewater Classification: (Circle One) G)
Regional Office
Central Office
Grade: A
Spray Irrigation
it III IV
Telephone:
Telephone:
Telephone:
Land Application
Total Points: 5 c= c A4 7 �'�L� w✓
IN -PLANT PROCESSES AND RELATED COf :Rat EQUIPMENT WHICH ARE AN INTEGRAL PART OF INDUSTRIAL PRODUCTION SHALL NOT BE
CONSIDERED WASTE TREATMENT FOR THE PURPOSE OFCLASSIFICATION. ALSO SEPTIC TANK SYSTEMS CONSISTING ONLY OF SEPTIC TAN(
AND GRAVITY NITRIFICATION LINES ARE EXEMPT FROM CLASSIFICATION,
SUBSURFACE CLASSIFICATION
(check all
1.
2.
3.
4.
5.
6.
7.
units that apply)
septic tanks
pump tanks
siphon or pump -dosing systems
sand filters
grease trap/interceptor
oil/water separators
gravity subsurface treatment and disposal:
8. pressure subsurface treatment and disposal:
SPRAY IRRIGATION CLASSIFICATION
(check all units that apply)
1. preliminary treatment (definition no. 32 )
2. lagoons
3. septic tanks
4. pump tanks
5. pumps
6. sand filters
7. grease trap/interceptor
8. oil/water separators
9. disinfection
10. chemical addition for nutrient/algae control
11. spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater In excess of these components shall
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall be assigned a Class I classification ppnless the flow is of a significant quantity or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check i1 Appropriate)
1. OiVwater Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recycle Systems;
5. Groundwater Remediation Systems consisting only of oiVwater separators, pumps, air -stripping, carbon adsorption, disinfection
and disposal;
6. Aquaculture operations with discharge to surface waters;
7. / Water Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified if permitted after July 1,
1993 or if upon inspection by the Division, it is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
ITEM POINTS
(1) Industrial Pretreatment Units or industrial Pretreatment Program (see definition No. 33) 4
(2) DESIGN FLOW OF PLANT IN gpd (not applicable to non•contaminated cooling waters, sludge handling facilities for
water purification plants, totally closed cycle systems(see definition No. 11), and facilities consisting only of hem
(4)(d) or items (4)(d) and (11)(d)J
0 - 20,000 1
20,001 - 50.000 2
50.001 - 100.000 .3
100,001 - 250.000 4
250,001 - 500,000 .5
500.001 - 1,000.000 .8
1.000.001 - 2,000.000 10
2.000.001 (and up) rate 1 point additional for each 200.000 gpd capacity up to a maximum of 30
Design Flow (gpd)
(3) PRELIMINARY UNiTS✓PROCESSES (see definition No.32)
(a) Bar Screens 1
or
(b) Mechanical Screens. Static Screens or Comminuting Devices 2
(c) Grit Removal 1
or
(d) Mechanical or Aerated Grit Removal 2
(e) Flow Measuring Device 1
or
(f) instrumented Flow Measurement 2
(g) Preaeratlon 2
(h) Influent Flow Equalization 2
(I) Grease or 011 Separators - Gravity 2
Mechanical .3
Dissolved Air Rotation .8
()) Prechlorination .5
(4) PRIMARY TREATMENT UNiTS,PROCESSES
(a) Septic Tank (see definition No. 43) 2
(b) Imhoff Tank .5
(c) Primary Clar1flers 5
(d) Settling Ponds or Settling Tanks for Inorganic Non -toxic Materials (sludge handling facilities for water
purification plants. sand. gravel. stone. and other mining operations except recreational activities such as gem
or gold mining) 2
(5) SECONDARY TREATMENTLNTSIPROCESSES
(a) Carbonaceous Stage
(I) Aeration -High Purity Oxygen System .20
Diffused Air System t 0
Mechanical Air System (fixed. floating or rotor) .8
Separate Sludge Reaeratlon 3
(II) Trickling Filter
High Rate 7
Standard Rate S
Packed Tower .5
(ill) Biological Aerated Fitter or Aerated Biological Filter 10
(iv) Aerated Lagoons 10
(v) Rotating Biological Contactors 10
(vi) Sand Filters -intermittent biological 2
Recirculating biological .3
(vil) Stabilization Lagoons 5
(viii) Ciartlier .5
(ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by
nitrification (see definition No. 12)(Points for this item have to be In addition to hems
(5)(a)(I) through (5)(a)(vili),
utilizing the extended aeration process (see definition No.3a) 2
utilizing other than the extended aeration process. 8
(x) Nutrient additions to enhance BOD removal .5
(xi) Biological Culture ('Super Bugs•)addhlon 5
(b) Nitrogenous Stage
(i) Aeration - High Purity Oxygen System 20
Diffused Air System 10
Mechanical Air System (fixed. floating or rotor) , .8
Separate Sludge Reaeration .3
(Ii) Trickling Filter -High Rate 7
Standard Rate .5
Packed Tower S
(ill) Biological Aerated Filter or Aerated Biological Filter....... 10
(iv) Rotating Biological Contactors 10
(v) Sand Filter - Intermittent biological 2
Recirculating biological 3
(vi) Clarifier 5
(6) TEFMARYORADVANCEDTREATMENT UNITS/PROCESSES
(a) Activated Carbon Beds -
whhout carbon regeneration .5
with carbon regeneration 15
(b) Powdered or Granular Activated Carbon Feed -
without carbon regeneration .5
with carbon regeneration 15
(c) Air stripping 5
(d) Denhrfflcation Process 10
(0) Electrodialysis 5
(I) Foam Separation 5
(g) ion Exchange .5
(h) Land Application of Treated Effluent (see definition No. 22b) (not applicable for sand. gravel. stone
and other similar mining operations) by high rate infiltration 4
(1) Microscreens S
(J) Phosphorous Removal by Biological Processes (See definition No. 26) .20
(k) Polishing Ponds - without aeration 2
with aeration 5

(I) Post Aeration - cascade 0
diffused or mechanical 2
(m) Reverse Osmosis 5
(n) Sand or Mixed -Media Filters - low rate 2
high rate 5
(o) Treatment processes for removal of metal or cyanide 15
(p) treatment processes for removal of toxic materials other than metal or cyanide 15
(7) SWDGE TREATMENT
(a) Sludge Digestion Tank - Heated (anaerobic) 10
Aerobic 5
Unheated (anaerobic) 3
(b) Sludge Stabilization (chemical or thermal) .5
(c) Sludge Drying Beds - Gravity 2
Vacuum Assisted
(d) Sludge Etutrtation 5
.5
(e) Sludge Condttloner (chemical or thermal) .5
(f) Sludge Thickener (gravity) 5
(g) Dissolved Air Flotation Unit (not applicable to a unit rated as (3)0)J 8
(h) Sludge Gas Utilization (including gas storage) 2
(I) Sludge Holding Tank - Aerated 5
Non -aerated 2
(j) Sludge Incinerator (not including activated carbon regeneration) 10
(k) Vacuum Filter, Centrifuge, or Filter Press or other similar dewatering devices 10
(8) RESIDUALS UTILIZATION/DISPOSAL (including incinerated ash)
(a) Lagoons 2
(b) Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
or landfill permit 2
( ) (c) Dedicated Landfill(burial) by the permhtee of the wastewater treatment facility 5
9 DISTFECTICN
(a) Chlorination .5
(b) Dechlorination 5
(c) Ozone 5
(d) Radiation 5
(10) CHEMICAL ADDITION SYSTEM(S) ( see definttion No. 9) (not applicable to chemical additions rated as ltem (3)(j).
(5)(a)(xi). (6)(a). (6)(b). (7)(b). (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
List
.5
.5
.5
.5
(1 1) MISCELLANEOUS UNITS/PROCESSES
(a) Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nitrogen or phosphorus compounds in amounts signtffcantly greater than is common
for domestic wastewater
4
(b) Effluent Row Equalization (not applicable to storage basins which are inherent In land application systems) .2
(c) Sumps Discharge (not applicable to storage basins inhererd in land application systems) 5
(d3
(0) Stand -By Power Supply .3
(f) Thermal Pollution Control Device .3
TOTAL POINTS
CLASSIFICATION
Class I 5-25 Points
Class II 26-50 Points
Class!!! 51-65 Points
Class N 66-Up Points
Facilities having a rating of one through four points. Inciusive, do not require a certified operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class 11I.
.0004 DEFINITIONS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physical/chemical method for reducing soluble organic material from wastewater effluent; The column -type beds used in this
method will have a flow rate varying from two to eight gallons per minute per square foot and may be either upflow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant she;
(2) Aerated Lagoons. A basin in which ail solids are maintained in suspension and by which biological oxidation or organic matter is n3duced through artificially
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purtty oxygen In a liquid by spraying, agitation or diffuston;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours.
(4) Agriculturally managed site. Any site on which a crop is produced. managed, and harvested (Crop Includes grasses. grains, trees, etc.);
(5) Air Stripping. A process by which the ammonium ion Is first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other similar processes which remove petroleum products such as benzene. toluene, and xylene;
(6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed impurities;
(7) Carbonaceous Stage. A sage of wastewater treatment designed to achieve 'secondary' effluent limits;
(8) Centrifuge. A mechanical device in which centrifugal force is used to separate solids from liquids or to separate liquids of different densrtas;
(9) Chemical Addition Systems- The addition of chemical(s) to wastewater at an application point for purposes of Improving solids removal. pH adjustment,
aikalinhy control, etc.; the capability to experiment with different chemicals and different application points to achieve a specific result will be considered one
system; the capability to add chemical(s) to dual units will be rated as one system; capability to add a chemical at a different application points for different
purposes wiii result in the systems being rated as separate systems;
(10) Chemical Sludge Conditioning. The addttion of a chemical compound such as lime. ferric chloride. or a polymer to wet sludge to coalesce the mass prior to
its application to a dewaterfng device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing inorganic. non -toxic materials from sand, gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A single stage system required to achieve permit effluent limits on BOD
and ammonia nitrogen within the same biological reactor,
(13) Dechiorination. The partial or complete reduction of residual chlorine in a Liquid by any chemical or physical process;
(14) Denhrhlcatlon Process. The conversion of nitrate -nitrogen to nitrogen gas;

(15) Electrodlalysis. Process for removing Ionized salts from water through the use of ion -selective lon-exchange membranes;
(16) Filter Press. A process operated mechanically for partially dewatering sludge;
(17) Foam Separation. The planned frothing of wastewater or wastewater effluent as a means of removing excessive amounts of detergent materials through
the introduction of air In the form of fine bubbles; also called foam fractionation;
(18) Grit Removal. The process of removing grit and other heavy mineral matter from wastewater;
(19) Imhoff Tank. A deep two story wastewater tank consisting of an upper sedimentation chamber and a lower sludge digestion chamber.
(20) Instrumented Flow Measurement. A device which indicates and records rate of flow;
(21) ton Exchange. A chemical process in which ions from two different molecules are exchanged;
(22) Land application:
(a) Sludge Disposal. A final sludge disposal method by which wet sludge may be applied to land either by spraying on the surface or by subsurface injection
(1.e.. chisel plow); [not applicable for types of sludge described In (11) of this Rule];
(b) Treated Effluent. The process of spraying treated wastewater onto a land area or other methods of application of wastewater onto a land area as a
means of final disposal or treatment;
(23) Microscreen. A low speed. continuously back -washed, rotating drum fitter operating under gravity conditions as a polishing method for removing
suspended solids from effluent;
(24) Nitrification Process. The biochemical conversion of unoxidized nitrogen (ammonia and organic nitrogen) to oxidized nitrogen (usually nitrate);
(25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphate Removal. Biological. The removal of phosphorus from wastewater by an oxlcJanoxic process designed to enhance luxury uptake of phosphorus
by the microorganisms;
(27) Polishing Pond. A holding pond following secondary treatment with sufficient detention time to allow settling of finely suspended solids;
(28) Post Aeration. Aeration following conventional secondary treatment units to increase effluent D.O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing method by which dissolved oxygen is added to the effluent by a nonmechanical, gravity means of flowing down a
series of steps or weirs; The flow occurring across the steps or weirs moves in a fairly thin layer and the operation of the cascade requires no operator
adjustment; thus, zero points are assigned even though this is an essential step to meeting the limits of the discharge permit;
(30) Powdered to Granular Activated Carbon Feed. A biophysical carbon process that utilizes blotoglcal activity and organic absorption by using powdered or
granular activated carbon; Virgin or regenerated carbon is feed controlled into the system;
(31) Preaeration. A tank constructed to provide aeration prior to primary treatment;
(32) Preliminary Units. Unit operations in the treatment process. such as screening and comminution. that prepare the liquor for subsequent major operations;
(33) Industrial Pretreatment.
(a) Pre-treatment Unit. Industrial. The conditioning of a waste at its source before discharge. to remove or to neutralize substances injurious to sewers and
treatment processes or to effect a partial reduction in load on the treatment process which is operated by the same governing body as the wastewater
treatment plant being rated;
b) Pre-treatment Program, Industrial - must be a State or EPA required program to receive points on the rating sheet;
(34) Primary Clarifiers. The first settling tanks through which wastewater is passed to a treatment works for the purpose of removing settleable and suspended
solids and BOD which Is associated with the solids;
(35) Pumps. All influent. effluent and in -plant pumps;
(36) Radiation. Disinfection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A treatment process In which a heavy contaminated liquid is pressurized through a membrane forming nearly pure liquid free from
suspended solids;
(38) Rotating Biological Contractors. A fixed biological growth process in which wastewater flows through tanks in which a series of partially submerged circular
surfaces are rotated;
(39) Sand Filters:
(a) Intermittent Biological. nitration of effluent following septic tanks. lagoons. or some other treatment process In which further biodecomposltion is
expected to produce desired effluents; Hydraulic loading rates on these filters are computed to gpd/ac and have a resulting low gprnlsf (less than one);
b) Recirculating biological - the same type of sand filter as defined in Subparagraph (39) (a) of this Rule with the added capability to recycle effluent back
through the sand filter,
(40) Sand or Mixed -Media Filters. A polishing process by which effluent limits are achieved through a further reduction of suspended solids;
(a) low rate — gravity, hydraulically loaded fitter with toading rates in the one to three gpm/sf range;
(b) high rate — a pressure, hydraulically loaded fitter with loading rates in the five gprnisf range; At any rate, the loading rate will exceed three gpm sf;
(41) Secondary Clarifiers. A tank which follows the biological unit of treatment plant and which has the purpose of removing sludges associated with the
biological treatment units;
(42) Separate Sludge Reparation. A part of the contact stabilization process where the activated sludge is transferred to a tank and aerated before returning it
to the contact basin;
(43) Septic Tank. A single -story settling tank in which settled sludge is in contact with the wastewater flowing through the tank; shall not be applicable for
septic tank systems serving single family residences having capacity of 2.000 gallons or less which discharge to a nitrification fiekf;
(44) Sludge Digestion. The process by which organic or volatile matter and sludge is gasified. liquefied. mineralized or converted into more stable organic matter
through the activity of living organisms, which Includes aerated holding tanks;
(45) Sludge Drying Beds. An area comprising natural or artificial layers of porous materials upon which digested sewage sludge Is dried by drainage and
evaporation;
(46) Sludge Elutriatlon. A process of sludge conditioning in which certain constituents are removed by successive washings with fresh water or plant effluent;
(47) Sludge Gas Utilization. The process of using sewage gas for the purpose of heating buildings. driving engines, etc.;
(48) Sludge Holding Tank (Aerated and Nonaerated). A tank utilized for small wastewater treatment plants not containing a digester In which sludge may be
kept fresh. and supernatant withdrawn prior to a drying method (i.e. sludge drying beds); This may be done by adding a small amount of air simply to keep the
sludge fresh. but not necessarily an amount that would be required to achieve stabilization of organic matter. A nonaerated tank would simply be used to
decant sludge prior to dewatering and would not allow long periods (several days of detention) without resulting odor problems;
(49) Sludge Incinerators. A furnace designed to bum sludge and to remove all moisture and combustible materials and reduce the sludge to a sterile ash;
(50) Sludge Stabilization (Chemical or Thermal). A process to make treated sludge Tess odorous and putresclble, and to reduce the pathogenic organism
content; This may be done by pH adjustment. chlorine dosing. or by heat treatment;
(51) Sludge Thickener. A type of sedimentation tank In which the sludge is permitted to settle and thicken through agitation and gravity;
(52) Stabilization Lagoon. A type of oxidation lagoon in which biological oxidation of organic matter Is effected by natural transfer of oxygen to the water from
air (not a polishing pond);
(53) Stand -By Power Supply. On site or portable electrical generating equipment;
(54) Static Screens. A stationary screen designed to remove solids. including non -biodegradable particulate (floatabte solids. suspended solids and BOD
reduction) from municipal and industrial wastewater treatment systems;
(55) Tertiary Treatment. A stage of treatment following secondary which is primarily for the purpose of effluent polishing; A settling lagoon or sand or coal fitter
might be employed for this purpose;
(56) Thermal Pollution Control Device. A device providing for the transfer of heat from a fluid flowing In tubes to another fluid outside the tubes, or vice versa;
or other means of regulating liquid temperatures;
(57) Thermal Sludge Conditioner. A conditioning process by which heat is added for a protracted period of time to improve the dewaterabtllty of sludge by the
solubiliztng and hydraulizing of the smatter and more highly hydrated sludge particles;
(58) Toxic Materials. Those wastes or combinations of wastes. Including disease -causing agents which after discharge and upon exposure. Ingestion, Inhalation
or assimilation into any organism, either directly from the environment or indirectly by ingestion through food chains, will cause death. disease. behavioral
abnormalities. cancer. genetic mutations. physiological malfunctions (Including malfunctions In reproduction) or physical deformations. to such organisms or their
offspring; Toxic materials Include, by way of Illustration and not limitation: lead, cadmium. chromium, mercury. vanadium. arsenic. zinc, ortho-nhro-chlorobenzene
(ONCB), polychlorinated biphenyls (PCBs) and dichtorodiphenyi trichtoroethane (DDT); and any other materials that have or may hereafter be determined to have
toxic properties;
(59) Trickling Fitter. A biological treatment unit consisting of a material such as broken stone or rock over which wastewater is distributed; A high rate trickling
filter Is one which operated at between 10 and 30 mgd per acre. A low rate trickling fitter is one which is designed to operate at one to four mgd per acre;
(60) Trickling Fitter (Packed Tower). A plug flow type of operation In which wastewater flows down through successive layers of media or filtrate malarial; Organic
material Is removed continually by the active biological fixed growth In each successive layer. This method may produce 'secondary' quality effluent, or may be
adapted to produce a nitrified effluent;
(61) Vacuum Fitter. Centrifuges. or Filter Presses. Devices which are designed to remove excess water from either digested or undigested sludge prior to disposal
or further treatment.