NC0041246_Authorization to Construct_20030923

DICKSON
Engineers. Planners. Surveyors
LandscapeArchitects
September 23, 2003
NCDENR/DWQ
NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: Lincoln County Schools; Lincoln County, NC
West Lincoln High School WWTP — ATC No. 041246A01
NPDES Permit NC0041246
WKD #10695.10.CL I
Gentlemen:
I, G. Tim Lowder, PE, am a registered Professional Engineer in the State of North Carolina
and have been authorized to observe periodically the construction of the referenced
project for the Permittee.
The project consists of:
• Approximately 1,640 LF of 6: diameter gravity sewer from the school to the new
treatment plant site
• One (1) 14,000 gallon primary settling tank
• One (1) 12,000 gallon recirculating sand filter dosing tank with two (2)
submersible turbine pumps rated at 2 HP each
• One (1) adjoining 12,000 gallon flow equalization tank
• Two (2) 2,2888 sq. ft. recirculating sand filters of the pressurized, drip irrigation
type
• One (1) proportional flow splitter
• One (1) 100,000 gpd UV disinfection unit
• One (1) 60 gpm duplex submersible pump station
• Approximately 1,630 LF of 3" diameter force main to deliver treated effluent from
the treatment system to Indian Creek
• Fiberglass control building
• 25 kW diesel generator
• all related structures, equipment, piping, controls, and other appurtenances, as
presented in the proposed plans and specifications.
616 Colonnade Drive
Charlotte, NC 28205
704-334-5348
Fax: [phone]
wwwwkdickson.com
Office Locations: North Carolina • South Carolina • Georgia • Florida

NCDENR/DWQ
September 23, 2003
Page 2
I herby certify that I did regularly observe this project with due care and diligence and
that the construction was completed in substantial conformance with the Authorization to
Construct and with the approved plans and specifications.
Sincerely,
W.K. Dickson Co.. _ c.
G. Tim Lowder, PE
Vice President
cc: Thomas C. Seagle, III — Lincoln County Schools
The Dives of Water Quality
acknowledges rectiPt and acceptance of
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ULCS/approvals/NPDES Certihcation092303
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State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
Mr. Thomas C. Seagle, III
Lincoln County Schools
P.O. Box 400
Lincolnton, North Carolina
October 2, 2002
28093-0400
A7A
NCDENR
Subject: Authorization to Construct
ATC No. 041246A01
NPDES Permit No. NC0041246
West Lincoln High School WWTP
Lincoln County
Dear Mr. Seagle:
The Division of Water Quality's NPDES Unit has reviewed the Lincoln County Schools' request
for an Authorization to Construct a new wastewater treatment facility at the West Lincoln High
School WWTP. The proposed facility would replace the existing treatment system and relocate
the existing outfall to Indian Creek, as authorized in the facility's current NPDES permit.
The Division finds the proposed improvements and design to be satisfactory and hereby grants
authorization for construction or installation of the following:
• approximately 1,640 LF of 6" diameter gravity sewer from the school to the new
treatment plant site;
• one (1) 14,000 gallon primary settling tank;
• one (1) 12,000 gallon recirculating sand filter dosing tank with two (2) submersible
turbine pumps rated at 2 HP each;
• one (1) adjoining 12,000 gallon flow equalization tank;
• two (2) 2,888 sq. ft. recirculating sand filters of the pressurized, drip irrigation type;
• one (1) proportional flow splitter;
• one (1) 100,000 gpd UV disinfection unit;
• one (1) 60 gpm duplex submersible pump station;
• approximately 1,630 LF of 3" diameter force main to deliver treated effluent from the
treatment system to Indian Creek;
• fiberglass control building;
• 25 kW diesel generator; and
• all related structures, equipment, piping, controls, and other appurtenances, as
presented in the proposed plans and specifications.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer On the Internet at http://h2o.enr.state.nc.us/NPDES

ATC No. 041246A01
West Lincoln High School WWTP
Additional Conditions
The Operational Agreement between the Permittee and the Environmental Management
Commission is incorporated herein by reference and is a condition of this Permit.
Noncompliance with the terms of the Operational Agreement shall subject the Permittee to all
sanctions provided by G. S. 143-215.6 for violation of or failure to act in accordance with the
terms and conditions of this Permit.
Failure to abide by the requirements contained in this Authorization to Construct may subject
the Permittee to an enforcement action by the Division of Water Quality in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not relieve the Permittee from its
responsibility to comply with any and all statutes, rules, regulations, or ordinances that may be
imposed by other government agencies (local, state, and federal) which have jurisdiction.
The Permittee shall maintain a copy of the approved plans and specifications on file for the life
of the facility.
If you have any questions about this Authorization to Construct, please contact Mike
Templeton, at [phone], extension 541.
Sincerely,
ir
Alan W. Klimek, P.E.
Director
Enclosures: Engineer's Certification Form
Copies: Mr. Thomas A. Bach (w/ enclosure) - W.K. Dickson
616 Colonnade Drive
Charlotte, NC 28205
Mooresville Regional Office, Water Quality
Technical Assistance and Certification Unit
Central Files
NPDES Unit Files

ATC SUMMARY
Lincoln County Schools
West Lincoln High School WWTP
ATC No. 041246A01
Indian Creek, Class WS IV
Catawba River Basin
Lincoln County
SCOPE
Lincoln County Schools proposes to construct a new and expanded wastewater treatment system
and outfall at the West Lincoln High School WWTP to replace the existing plant and relocate its
outfall to Indian Creek.
RECOMMENDATIONS
1. Approve the ATC request, received April 3, 2002.
2. Condition the Authorization upon the addition of an improved base for the PVC
liner in the sand filters.
REVIEW SUMMARY
The proposed improvements consist of:
• approximately 1,640 LF of 6" diameter gravity sewer from the school to the new
treatment plant site;
• one (1) 14,000 gallon primary settling tank;
• one (1) 12,000 gallon recirculating sand filter dosing tank with two (2) submersible
turbine pumps rated at 2 HP each;
• one (1) adjoining 12,000 gallon flow equalization tank;
• two (2) 2,888 sq. ft. recirculating sand filters of the pressurized, drip irrigation type;
• one (1) proportional flow splitter;
• one (1) 100,000 gpd UV disinfection unit;
• one (1) 60 gpm duplex submersible pump station;
• approximately 1,630 LF of 3" diameter force main to deliver treated effluent from the
treatment system to Indian Creek;
• fiberglass control building;
• 25 kW diesel generator; and
• all related structures, equipment, piping, controls, and other appurtenances, as
presented in the proposed plans and specifications.
The existing treatment system is designed and permitted for 0.010 MGD and discharges to UT to
Indian Creek. The new system is designed to fully replace the existing system, which will then be
removed (to at least 3 ft. below grade). The new system is designed to treat 0.014 MGD of sanitary
and cafeteria wastewaters from the expanded high school and will discharge directly to Indian
1

Lincoln County Schools
West Lincoln High School WWTP
ATC No. 041246A01
Creek through a new force main/ outfall line. The facility's NPDES permit was modified in August
2002 to authorize these changes.
REVIEW NOTES
The project review was abbreviated because of time constraints. The recommendation for approval
is based in part on conversations with Bob DeWeese of DPI and Tom Bach of W.K. Dickson in
addition to a reading of the plans and specs.
Key concerns with the design included the adequacy of the drip irrigation design and lack of a
structural "floor" under the sand filters.
The sand filters use a system of l - inch diameter pressurized distribution lines on 1 ft.
centers, with drip irrigation emitters on 2 ft. centers. There seems to be potential for clogging,
but the system design includes pre -filters and a high -velocity flush cycle to prevent solids
build-up in the lines. Mr. DeWeese indicated that he is familiar with several of these systems
elsewhere in the state and that they are performing exceptionally well, even achieving some
effectiveness in nitrification/ denitrification.
The proposed liner is 30 mil PVC liner would be placed directly on the excavated soils and
extend up and over the concrete block walls of the filter cells. A quick review of several
design references for on -site sand filter systems (EPA Region 4, State of Wisconsin) showed
this to be commonly accepted practice in small treatment systems. They also recommended
that the liner be placed on a clean, stable surface such as sand bedding in order to avoid the
risk of puncture. The ATC is conditioned on providing a better base for the liner, such as 2" or
more of sand over the excavated floor of the filters.
Other comments and concerns were relatively minor and were not addressed further during the
review.
- end of summary -
2

pok WK
111 DICKSON
E?:jincws • Plannrrs •
Landscape architects
April 1, 2002
Mr. Charles Weaver
North Carolina Department of Environment and Natural Resources
NPDES Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699
RE: Lincoln County Schools; Lincoln County, NC
West Lincoln High School WWTP Expansion
Request For Authorization To Construct Package
WKD #10695.10.CL
We are pleased to submit, on behalf of Lincoln County Schools, the Request for Authorization to
Construct package for the referenced project. Per the submittal requirements highlighted in the
NCDENR Authorization to Construct Guidance Document dated January 20, 1999, included
with this package are the following items:
1. One original and three copies of letter of request from the Permittee describing the
components to be installed.
2. Four sets of Detailed Plans and Specifications.
3. Four sets of Design Calculations & Supporting Documents and Hydraulic Profiles.
4. Four copies of the Flow Schematic.
5. Four copies of the NCDENR Watershed Classification Attachment (Form WSCA 10/99).
A Construction Sequence Plan was not included with this submittal since there will be no
modifications made to the existing wastewater treatment facility. In addition, supply performance
data or pilot test data was not included since the proposed wastewater treatment facility
components have well established treatment capabilities.
We trust that everything is complete for your review. Should you have any questions or need
additional information, please do not hesitate to call. Upon approval of the Request for
Authorization to Construct package, we request that the fourth copy of each document enclosed
be returned to this office for our files.
Sincerely,
W. K. Dickson & Co., Inc. 147„
Thomas A. Bach, PE
cc: Mr. Thomas C. Seagle, III — Lincoln County Schools (w/ enclosures)
Mr. Joe Corporon — NCDENR - NPDES Unit
UI incs/10695//npdessubmitta1040102
616 Colonnade Drive
Charlotte, North Carolina 28205
704.334.5348
Fax [phone]
www.wkdickson.com
Other Offices:
Asheville, NC
Atlanta, GA
Boca Raton, FL
Columbia, SC
Hickory, NC
Raleigh, NC
Wilmington, NC

PROP. 3" 55 FORCE MAIN
(APPROX. 400') .
PROP. RECIRCULATING SANG
FILTER DOSING TANK
SURFACE WATER DISCHARGE
OPTION 1
LD
PROP. DISCHAR HEP
I I FILTER RECI' CULA I
EXIST. 6 DISCHARGE NE 1
\1
1
1 1 PROP. 8" GRA TY DISCHARG LINE
(APPROX. 1500' `
� 11
PROP. DISCHAR HEA
zR
�� /INDIAN CREEK
SURFACE WATER DISCHARGE
OPTION 2
REBUILD EXIST. SEPTIC TANK
PROP. 3" 5S FORCE MAIN
\ (APPROX. 1500')
ROP. SEPTIC TANK
POP. RECIRCULATING SAND FILTER DOSING TANK
PRQP. RECIRCULATING SAND FILTER STRUCTURE
\
PROP. CWLORINATION COMPARTMENT
NEW 4\3-ACRE TRACT
PROP. 8" GR VITY DISCHARGE LINE
(APPROX. 200t\T')
PROP. DISCHARG HEADER
/
SITE PLAN FOR PROPOSED
SURFACE WATER DISCHARGE OPTIONS
LINCOLN COUNTY SCHOOLS
WEST UNCOLN HIGH SCHOOL (EAA)
. DICKSON
(A1
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1
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SURFACE WATER DISCHARGE SYSTEM - OPTION 1
14,000 GPD - REVISION TO EXISTING SYSTEM
ESTIMATED CAPITAL COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Septic Tank (14,000 Gallon)
LS
$ 32,000.00
1
$ 32,000.00
2
Grinder Pump Station
LS
$ 60,000.00
1
$ 60,000.00
3
3" PVC Force Main (SDR 21)
LF
$ 10.00
400
$ 4,000.00
4
Recirculating Sand Filter Dosing Tank (14,000 Gallon)
LS
$ 40,000.00
1
$ 40,000.00
5
Recirculating Sand Filter Structure (4,100 SF)
LS
$ 120,000.00
1
$ 120,000.00
6
Proportional Flow Splitter
LS
$ 2,000.00
1
$ 2,000.00
7
Yard Piping
LS
$ 2,000.00
1
$ 2,000.00
8
8" PVC Gravity Sewer Trunk (SDR 35) Incl. Rock
LF
$ 70.00
1,600
$ 112,000.00
9
Engineering Services (Survey/Design)
LS
$ 30,000.00
1
$ 30,000.00
10
Bidding/Award Services
LS
$ 7,000.00
1
$ 7,000.00
11
Construction Services (Administration/Observation)
LS
$ 10,000.00
1
$ 10,000.00
Subtotal
$ 419,000.00
12
Contingency (15%)
LS
$ 62,900.00
1
$ 62,900.00
Total
$ 481,900.00
ESTIMATED RECURRING COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Operation & Maintenance Cost
Month
$ 400.00
12
$ 4,800.00
2
Laboratory Cost
Month
$ 200.00
12
$ 2,400.00
3
Operator & Support Staff Cost
Month
$ 200.00
12
$ 2,400.00
4
Utility Costs
Month
$ 200.00
12
$ 2,400.00
Total
Year
$ 12,000.00
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SURFACE WATER DISCHARGE SYSTEM - OPTION 2
14,000 GPD
ESTIMATED CAPITAL COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Septic Tank (14,000 Gallon)
LS
$ 32,000.00
1
$ 32,000.00
2
Grinder Pump Station
LS
$ 60,000.00
1
$ 60,000.00
3
3" PVC Force Main (SDR 21)
LF
$ 10.00
1,500
$ 15,000.00
4
Recirculating Sand Filter Dosing Tank (14,000 Gallon)
LS
$ 40,000.00
1
$ 40,000.00
5
Recirculating Sand Filter Structure (4,100 SF)
LS
$ 120,000.00
1
$ 120,000.00
6
Chlorination Structure
LS
$ 4,000.00
1
$ 4,000.00
7
Proportional Flow Splitter
LS
$ 2,000.00
1
$ 2,000.00
8
Yard Piping
LS
$ 2,000.00
1
$ 2,000.00
9
8" PVC Gravity Sewer Trunk (SDR 35) Incl. Rock
LF
$ 70.00
2,000
$ 140,000.00
10
Engineering Services (Survey/Design)
LS
$ 33,500.00
1
$ 33,500.00
11
Bidding/Award Services
LS
$ 7,000.00
1
$ 7,000.00
12
Construction Services (Administration/Observation)
LS
$ 11,500.00
1
$ 11,500.00
Subtotal
$ 467,000.00
13
Contingency (15%)
LS
$ 70,100.00
1
$ 70,100.00
Total
$ 537,100.00
ESTIMATED RECURRING COSTS
Item No.
Item description
Units
Unit Price
Quantities
Total
Cost
1
Operation & Maintenance Cost
Month
$ 400.00
12
$ 4,800.00
2
Laboratory Cost
Month
$ 200.00
12
$ 2,400.00
3
Operator & Support Staff Cost
Month
$ 200.00
12
$ 2,400.00
4
Utility Costs
Month
$ 200.00
12
$ 2,400.00
Total
Year
$ 12,000.00
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SURFACE WATER DISCHARGE SYSTEM - OPTION 3
25,000 GPD
ESTIMATED CAPITAL COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Septic Tank (25,000 Gallon)
LS
$ 58,000.00
1
$ 58,000.00
2
Grinder Pump Station
LS
$ 60,000.00
1
$ 60,000.00
3
3" PVC Force Main (SDR 21)
LF
$ 10.00
1,500
$ 15,000.00
4
Recirculating Sand Filter Dosing Tank (25,000 Gallon)
LS
$ 72,000.00
1
$ 72,000.00
5
Recirculating Sand Filter Structure (7,200 SF)
LS
$ 210,000.00
1
$ 210,000.00
6
Chlorination Structure
LS
$ 7,000.00
1
$ 7,000.00
7
Proportional Flow Splitter
LS
$ 4,000.00
1
$ 4,000.00
8
Yard Piping
LS
$ 4,000.00
1
$ 4,000.00
9
8" PVC Gravity Sewer Trunk (SDR 35) Incl. Rock
LF
$ 70.00
3,500
$ 245,000.00
10
Engineering Services (Survey/Design)
LS
$ 45,000.00
1
$ 45,000.00
11
Bidding/Award Services
LS
$ 10,000.00
1
$ 10,000.00
12
Construction Services (Administration/Observation)
LS
$ 15,000.00
1
$ 15,000.00
Subtotal
$ 745,000.00
13
Contingency (15%)
LS
$ 111,800.00
1
$ 111,800.00
Total
$ 856,800.00
ESTIMATED RECURRING COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Operation & Maintenance Cost
Month
$ 800.00
12
$ 9,600.00
2
Laboratory Cost
Month
$ 400.00
12
$ 4,800.00
3
Operator & Support Staff Cost
Month
$ 400.00
12
$ 4,800.00
4
Utility Costs
Month
$ 400.00
12
$ 4,800.00
Total
Year
L.
•
$ 24,000.00
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WEST LINCOLN HIGH SCHOOL COMPLEX
1500'±
I,
8"
10,000 GALLON SEPTIC TANK
6 V W/10,000 DOSING COMPARTMENT
8"
340'-6" CI PIPE
FLOW DIVERSION BOX
CHLORINATION COMPARTMENT
630'-6" TC PIPE
1
400'-6" TC PIPE
SURFACE WATER
DISCHARGE HEADER
UNNAMED TRIBUTARY
INDIAN CREEK
v
SURFACE SAND FILTER
1,800 SQUARE FOOT
(60FTx30FT)
01C
NC11E
1.1W001
NAY 7001
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I0055.00.0L
41NCCIN\100M00\E-5.11. O V2
EXISTING WASTEWATER TREATMENT SYSTEM
ONE LINE SCHEMATIC
LINCOLN COUNTY SCHOOLS
WEST LINCOLN HIGH SCHOOL (EAA)
LINCOLNTON, NORTH CAROLINA
WK
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Elylµ.. • am,wr. • Surlryr.
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CHARLOTTE. NC 715705
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10 DICKSON
tn3ineers • Planners • Surveyors
Landscape Architects
May 15, 2001
Ms. K. Marie Doklovic, EIT
Environmental Engineer II
NCDENR Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: West Lincoln High School EAA
Lincoln County Schools, North Carolina
NPDES Permit No. NC0041246
2nd Submittal
WKD #10058.00.CL A
Dear Ms. Doklovic:
For your review and comments, enclosed are four (4) copies of the Engineering Alternatives
Analysis (EAA) for West Lincoln High School. The required EAA includes the following sections:
A. General Information
B. Evaluate Disposal Alternatives
C. Present Value of Costs Analysis (Appendix A)
D. Soil Analysis Report Requirements (Appendix B)
E. Site Drawing/Schematic (Appendix C)
F. On -Site Calculations - Surface & Subsurface (Appendix D)
Let me know if you have any questions and/or comments pertaining to the EAA.
Sincerely,
W. K. Dickson & Co., Inc.
fi,c(
Thomas A. Bach, PE
Enclosure
cc: Mr. Thomas C. Seagle, III — Lincoln County Schools (w/ enclosure)
616 Colonnade Drive
Charlotte, North Carolina 28205
704.334.5348
Fax [phone]
www.wkdickson.conl
Other Offices:
Asheville, NC
Atlanta, GA
Boca Raton, FL
Vmw/10058/doklovicmncdenr051401
Columbia, SC
Hickory, NC
Raleigh, NC
Wilmington, NC

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SUBSURFACE CONVENTIONAL SYSTEM - OPTION 4
14,000 GPD
ESTIMATED CAPITAL COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Septic Tank (14,000 Gallon)
LS
$ 32,000.00
1
$ 32,000.00
2
Grinder Pump Station
LS
$ 60,000.00
1
$ 60,000.00
3
3" PVC Force Main (SDR 21)
IF
$ 10.00
1,500
$ 15,000.00
4
Recirculating Sand Filter Dosing Tank (14,000 Gallon)
LS
$ 40,000.00
1
$ 40,000.00
5
Recirculating Sand Filter Structure (4,100 SF)
LS
$ 120,000.00
1
$ 120,000.00
6
Proportional Flow Splitter
LS
$ 2,000.00
1
$ 2,000.00
7
Yard Piping
LS
$ 2,000.00
1
$ 2,000.00
8
Subsurface Conventional System
LS
$ 225,000.00
1
$ 225,000.00
9
Engineering Services (Survey/Design)
LS
$ 36,000.00
1
$ 36,000.00
10
Bidding/Award Services
LS
$ 8,000.00
1
$ 8,000.00
11
Construction Services (Administration/Observation)
LS
$ 12,000.00
1
$ 12,000.00
12
Soils Evaluation & Analysis
LS
$ 8,000.00
1
$ 8,000.00
Subtotal
$ 560,000.00
y„^
13
Contingency (15%)
LS
$ 84,000.00
1
$ 84,000.00
Total
$ 644,000.00
ESTIMATED RECURRING COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Operation & Maintenance Cost
Month
$ 800.00
12
$ 9,600.00
2
Laboratory Cost
Month
$ 200.00
12
$ 2,400.00
3
Operator & Support Staff Cost
Month
$ 400.00
12
$ 4,800.00
4
Utility Costs
Month
$ 200.00
12
$ 2,400.00
Total
Year
$ 19,200.00

SUBSURFACE CONVENTIONAL SYSTEM - OPTION 5
25,000 GPD
ESTIMATED CAPITAL COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Septic Tank (25,000 Gallon)
LS
$ 58,000.00
1
$ 58,000.00
2
Grinder Pump Station
LS
$ 60,000.00
1
$ 60,000.00
3
3" PVC Force Main (SDR 21)
LF
$ 10.00
1,500
$ 15,000.00
4
Recirculating Sand Filter Dosing Tank (25,000 Gallon)
LS
$ 72,000.00
1
$ 72,000.00
5
Recirculating Sand Filter Structure (7,200 SF)
LS
$ 210,000.00
1
$ 210,000.00
6
Proportional Flow Splitter
LS
$ 4,000.00
1
$ 4,000.00
7
Yard Piping
LS
$ 4,000.00
1
$ 4,000.00
8
8" PVC Gravity Sewer Main (SDR 35) Incl. Rock
LF
$ 70.00
1,500
$ 105,000.00
9
Subsurface Conventional System
LS
$ 400,000.00
1
$ 400,000.00
10
Engineering Services (Survey/Design)
LS
$ 58,000.00
1
$ 58,000.00
11
Bidding/Award Services
LS
$ 10,000.00
1
$ 10,000.00
12
Construction Services (Administration/Observation)
LS
$ 19,000.00
1
$ 19,000.00
13
Soils Evaluation & Analysis
LS
$ 10,000.00
1
$ 10,000.00
*.
Subtotal
$ 1,025,000.00
14
Contingency (15%)
LS
$ 153,800.00
1
$ 153,800.00
Total
$ 1,178,800.00
ESTIMATED RECURRING COSTS
Item No.
Item Description
Units
Unit Price
Quantities
Total
Cost
1
Operation & Maintenance Cost
Month
$ 800.00
12
$ 9,600.00
2
Laboratory Cost
Month
$ 400.00
12
$ 4,800.00
3
Operator & Support Staff Cost
Month
$ 400.00
12
$ 4,800.00
4
Uti I ity Costs
Month
$ 400.00
12
$ 4,800.00
Total _
Year
$ 24,000.00

Sampling Locations within Subbasin 03-08-35
Catawba 030835
4) Ambient Chemistry
6 Benthic Macroinvertebrate
Fish Community
osG---5 0.47_
z-F35-0-0

Table B-6 Biological Assessment Sites in Catawba River Subbasin 03-08-35 (1997)
Site
Stream
County
Road
Rating
B-1
South Fork Catawba River
Catawba
NC 10
Good
B-11
Henry Fork
Catawba
SR 1124
Good
B-21
Jacob Fork
Burke
SR 1924
Excellent
B-26
Howards Creek
Lincoln
SR 1200
Good
B-32
Clark Creek
Lincoln
SR 1008
Good -Fair
B-40
Indian Creek
Lincoln
SR 1252
Good
B-42
Mauney Creek
Gaston
SR 1831 (ab)
Fair
B-43
Mauney Creek
Gaston
SR 1831 (bl)
Fair
F-1
Henry Fork
Burke
SR 1916
Fair
F-2
Jacob Fork
Burke
SR 1924
Good
F-3
Pott Creek
Lincoln
SR 1217
Fair
F-7
Indian Creek
Lincoln
SR 1252
Poor
F-8
Hoyle Creek
Gaston
SR 1836
Fair
Key:
B = Benthic Macroinvertebrate Sites
F = Fish Sites
Biological and chemical monitoring data are used to develop use support ratings. These ratings
are used to prioritize DWQ activities towards protecting and restoring waters in the basin. There
are two streams listed as impaired in this subbasin: Clark Creek (partially supporting) and
Mauney Creek (partially supporting). Further discussion on these streams can be found in Part
6.3 below.
Fully supporting but threatened waters (ST) in this subbasin include most of the South Fork
Catawba River and Indian Creek. The 1995 basinwide plan listed only the lower portion of the
South Fork Catawba River as ST. Therefore, there are currently more stream miles on the South
Fork Catawba River rated ST than the previous plan. All other sampled tributary waters are fully
supporting (FS). Refer to Appendix II for a complete listing of monitored waters and use support
ratings.
Maiden Lake Assessment
COUNTY: Catawba CLASSIFICATION: WS-II CA
SURFACE AREA: 14 acres (6 hectares) MEAN DEPTH: 10 feet (3 meters)
VOLUME: 0.02 x106m3 WATERSHED: 20 mi2 (52 km2)
Maiden Lake is the water supply for the Town of Maiden. Built in the mid-1960s, the Feservoir
is fed by Maiden Creek and several springs. An average of 1.5 to 2 million gallons of water per
Section B: Chapter 6 - Catawba River Subbasin 03-08-35
122