NC0025542_Speculative Limits_20051010

NPDES DOCU ENT 5CANNINC COVER SHEET
NPDES Permit:
NC0025542
Catawba WWTP
Document Type:
' = - .: •� i�
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File
- Historical
Report
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
October 10, 2005
Thies document its printed an reuse paper - ignore airy
content on the re-snerase aside

0
Michael F. Easley
QG Governor
William G. Ross, Jr., Secretary
—1 North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
October 10, 2005
Mr. Kevin Greer, P.E.
City of Hickory
P.O. Box 398
Hickory, North Carolina 28603
Subject: Speculative Limits for Hickory -Catawba WWTP
Catawba County
Dear Mr. Greer:
This letter is in response to the request for speculative effluent limits for the Hickory -
Catawba wastewater treatment plant (WWTP), received from Richard Anderson, P.E. of
HSMM Architects on May 12, 2005. An expanded wastewater flow of 2.0 MGD was targeted
for discharge into Lyle Creek in the Catawba River Basin.
Please be advised that response to this request does not guarantee that the Division
will issue an NPDES permit to discharge treated wastewater into these receiving waters. The
City of Hickory will be required to complete an Engineering Alternatives Analysis (EAA) that
must be submitted with the application for the NPDES permit. The EAA should contain a
clear and strong justification for the expanded facility and an analysis of potential
alternatives, which should include a thorough evaluation of non -discharge alternatives.
Nondischarge alternatives, such as spray irrigation, water conservation, or connection to a
regional treatment and disposal system, are considered to be environmentally preferable to a
surface water discharge. In accordance with the North Carolina General Statutes, the most
practicable waste treatment and disposal alternative with the least adverse impact on the
environment is required to be implemented. A copy of the EAA guidance is attached with this
letter.
In addition, any entity proposing to construct new or expanded wastewater treatment
facilities using public funds or public (state) lands must first prepare an environmental
assessment (EA) when wastewater expansions equal or exceed 0.5 MGD. Please contact the
Division's State Environmental Policy Act (SEPA) coordinator, Alex Marks, at (919) 733 -
5083, ext. 555 for further information on EA requirements. DWQ will not accept a permit
application for a project requiring an environmental assessment until the Division has
approved the EA and sent a Finding of No Significant Impact (FONSI) to the state
Clearinghouse for review and comment.
The expanded discharge is to a segment of Lyle Creek that has a stream classification
of WS-IV CA. The best usage of these waters is a source of water supply for drinking,
culinary, or food processing purposes. The designation of "CA" or critical area means the area
adjacent to a water supply intake or reservoir where risk associated with pollution is greater
than from the remaining portions of the watershed. Please reference North Carolina
regulation 15A NCAC 2B .0202 (20) for the complete definition of critical area. The discharge
N. C. Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Internet: h2o.enr.state.nc.us
Phone: [phone]
fax: [phone]
DENR Customer Service Center: 1 800 623-7748

point for the Hickory - Catawba WWTP has a drainage area of 72.8 square miles, with a
summer 7Q10 of 16 cfs, a winter 7Q10 of 29 cfs and an average flow of 84 cfs.
The Hickory- Catawba WWTP discharges near the mouth of Lyle Creek with a current
design capacity of 0.225 MGD. The request for speculative limits is for an expansion flow of
2 MGD. Based on the wide, covelike area of the receiving stream and the substantial
increase in wasteflow, DWQ is concerned about the potential for localized water quality
impacts. A more complex water quality model is recommended for this discharge. The Water
Quality Analysis Simulation Program (WASP6) is the tool that is recommended to model the
Lyle Creek area for dissolved oxygen (including the effects of carbonaceous biochemical
oxygen demand (CBOD) and ammonia), phytoplankton kinetics, and the nitrogen and
phosphorus cycles. This model can be obtained through the Environmental Protection
Agency (EPA) website (www.epa.gov). Twelve months of data collection will be required for
this model. If the City of Hickory decides to run the WASP model, it is recommended that a
detailed study plan be submitted to DWQ for review. You may contact Pamela Behm (919-
733-5083 ext. 506) of the TMDL/Modeling Unit if there are additional questions pertaining to
the model and data collection.
Although speculative effluent limitations cannot be provided at this time, for future
reference, upstream and downstream monitoring will be required if the expansion is allowed.
Instream monitoring locations at the mouth of Lyle Creek and in the Catawba River/Lake
Norman area will be required. Conventional parameters should be sampled such as
temperature, dissolved oxygen, pH, and conductivity, in addition to chlorophyll a in the
downstream Catawba River/Lake Norman site.
The Division of Water Quality is requiring chlorine limits for all new or expanding
dischargers proposing the use of chlorine for disinfection. The process of
chlorination/dechlorination or an alternate form of disinfection, such as ultraviolet radiation,
should allow the facility to comply with this requirement. Additionally, upon formal permit
application, if there are industrial wastewater contributors to your plant, an evaluation of
limits and monitoring requirements for metals and other toxicants will be done.
Final NPDES effluent limitations will be determined if a permit application is
submitted to the Division. If there are any additional questions concerning this
matter, please feel free to contact Jackie Nowell of my staff at [phone] ext. 512.
Respectfully,
kv•
/ Susan A. Wilson, Supervisor
NPDES Western Program
Attachments
cc: Richard Anderson, P.E., HSMM 1460 John B. White Sr. Boulevard Spartanburg, SC 29306
Mooresville Regional Office/Rex Gleason
Michelle Woolfolk//TMDL /Modeling Unit
Bobby Blowe, Construction Grants and Loans
NPDES Permit File

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CTB32-LYLE CREEK2005
NPDES NO.
FACILITY NAME
RECEIVING STREAM
QW
BODS
NH3
DO
CL
TOX TEST
IWC
76110
NC0024252
Conover Northeast WWTP
Lyle Creek
1.50000
8,16
2,4
5
m
Chronic
32.0
5
NC0024279
Conover Southeast WWTP
McLin Creek - 001
0.30000
30
5
m
0.5
NC0024279
Conover Southeast WWTP
McLin Creek - 002
0.30000
30
5
m
NC0026549
South Claremont WWTP
UT McLin Creek
0.10000
30
4
m
Chronic
61.0
0.1
NC0058742
Heater Util-Country Valley Sub
Hagan Fork
0.10000
30
NC0032972
C & C Mobile Home Park
Lyle Creek
0.01500
30
14,m
m
NC0025542
Catawba WWTP
Lyle Creek
0.22500
30
Chronic
2.1
16
NC0044059
Bunker Hill High School
UT Lyle Creek
0.01500
16,30
4.3,15
m
NC0032662
North Claremont WWTP
Mull Creek
0.10000
30
5
Chronic
13.0
1
NC0081370
Claremont-McLin Cr WWTP
McLin Creek (prop.)
0.30000
8,16
2,4
5
28
Chronic
9.0
5

SUMMER
MODEL RESULTS
Discharger : ROCK BARN PROPERTIES
Receiving Stream : LYLE CREEK
The End D.O. is 5.99 mg/l.
The End CBOD is 0.87 mg/1.
The End NBOD is 0.24 mg/l.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 6.76 0.72 3
Reach 1
Reach 2
Reach 3
Reach 4
Reach 5
Reach 6
Reach 7
Reach 8
Reach 9
0.00
av NC 0.00
6o^l
12.00
0.00
M#-/ 45.00
0.00
0.00
0.00
0.00
Segment 2 6.52 0.00 1
wolf -
Reach 1 L iol t 45 . 00
Reach 2 0.00
Reach 3 0.00
Segment 3 5.81 3.40 3
Reach 1
Reach 2
Reach 3
0.00
chkrt 16.00
0.00
0.00 0.00 0.00000
0.00 0.00 0.00000
9.00 5.00 1.50000
0.00 0.00 0.00000
63.00 0.00 0.01500
0.00 0.00 0.00000
0.00 0.00 0.00000
0.00 0.00 0.00000
0.00 0.00 0.00000
90.00 0.00 0.10000
0.00 0.00 0.00000
0.00 0.00 0.00000
0.00 0.00 0.00000
9.00 5.00 1.50000
0.00 0.00 0.00000
Cat e.r�li� d -vzf 4 -
‘, AL-t
y,ti
/irc, /.4)

*** MODEL SUMMARY DATA ***
Discharger : ROCK BARN PROPERTIES Subbasin : 030832
Receiving Stream : LYLE CREEK Stream Class: C
Summer 7Q10 : 7.1 Winter 7Q10 : 10.1
Design Temperature: 25.0
LENGTH SLOPE VELOCITY I DEPTH Kd Kd I Ka I Ka I KN
mile ft/mi fps ft design @20° design @20° design
Segment 1
Reach 1
0.38 33.00
0.100 0.32 10.44 10.35 16.62 I 5.941 0.73
Segment 1 0.34
Reach 2
33.00
0.160
0.49
0.44
0.35 (10.63 9.53
0.73
Segment 1
Reach 3
0.52
14.50
0.407
1.14
0.38 0.30 I11.84
10.62 0.44
Segment 1 0.25 14.50
Reach 4
0.425
1.23
0.38
0.30
12.36
11.09
0.44
Segment 1
Reach 5
0.45
14.50
0.427
1.23
0.38 1 0.30
12.41 11.131
0.44
Segment 1
Reach 6
2.30
14.50
0.430
1.25
0.38
0.30
9.05
8.11
0.44
Segment 1
Reach 7
0.101
9.30 0.397 1.41 0.33 0.26
5.36 1 4.80
0.44
Segment 1
Reach 8
3.10
9.30
0.394
1.44
0.33
0.26 1 5.31
4.76
0.44
Segment 1
Reach 9
1.00
2.00I 0.247 1.81
0.27
0.21 1 0.72
0.641 0.44
Segment 2
Reach 1
0.101 30.301 0.218 0.62
0.45
0.36
13.24
11.87
0.73
Segment 2
Reach 2
2.201 17.00
0.209
0.76
0.36
0.29
7.15
6.41
0.44
Segment 2
Reach 3
2.70
7.60
0.299
1.25
0.31
0.25
4.56 1 4.09
0.44

Segment 3 0.90
Reach 1
2.00
0.300
2.10
0.27
0.21 I 0.87
0.78
0.44
Segment 3
Reach 2
0.60
2.00
0.324
2.13
0.27
0.22
0.45
0.40
0.44
Segment 3
Reach 3
3.00
1.00
0.040
10.00
0.25
0.20
0.22
0.20
0.44
Flow
cfs
Segment 1 Reach 1
Waste
Headwaters
Tributary
* Runoff
Segment 1
Waste
Tributary
* Runoff
Segment 1
Waste
Tributary
* Runoff
Segment 1
Waste
Tributary
* Runoff
Segment 1
Waste
Tributary
* Runoff
Segment 1
Waste
Tributary
* Runoff
Segment 1
Waste
Tributary
* Runoff
0.000
0.150
0.000
0.000
Reach 2
0.000
0.400
0.147
Reach 3
2.325
5.000
0.000
Reach 4
0.000
1.600
0.325
Reach 5
0.023
0.000
0.325
Reach 6
0.000
0.000
0.325
Reach 7
0.000
1.350
0.000
CBOD
mg/1
0.000
2.000
2.000
2.000
NBOD
mg/1
0.000
1.000
1.000
1.000
0.000 0.000
2.000 1.000
2.000 1.000
12.000
2.000
2.000
0.000
2.000
2.000
45.000
2.000
2.000
0.000
2.000
2.000
0.000
5.630
2.000
9.000
1.000
1.000
0.000
1.000
1.000
D.O.
mg/1
0.000
7.440
7.440
7.440
0.000
7.440
7.440
5.000
7.440
7.440
0.000
7.440
7.440
63.000 I 0.000
1.000 7.440
1.000 7.440
0.000
1.000
1.000
0.000
8.150
1.000
0.000
7.440
7.440
0.000
7.440
7.440

Segment 1 Reach 8
Waste 0.000
Tributary 0.300
* Runoff 0.000
Segment 1 Reach 9
Waste 0.000
Tributary 0.000
* Runoff 0.000
Segment 2 Reach 1
Waste
Headwaters
Tributary
* Runoff
0.155
1.100
0.000
0.000
0.000
2.000
2.000
0.000
1.000
1.000
0.000 1 0.000
2.000 1.000
2.000 1.000
45.000 90.000
2.000 1.000
2.000 1.000
2.000 1.000
Segment 2 Reach 2
Waste 0.000 1 0.000
Tributary 0.000 2.000
* Runoff 0.490 2.000
Segment 2 Reach 3
Waste 0.000
Tributary 4.170
* Runoff 0.407
Segment 3 Reach 1
Waste
Headwaters
Tributary
* Runoff
0.000
0.000
0.000
0.000
Segment 3 Reach 2
Waste 2.325
Tributary 0.000
* Runoff 0.000
0.000
8.460
2.000
0.000
2.000
2.000
2.000
16.000
2.000
2.000
0.000
1.000
1.000
0.000
12.290
1.000
0.000
1.000
1.000
1.000
9.000
1.000
1.000
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
0.000
7.440
7.440
7.440
5.000
7.440
7.440
Segment 3 Reach 3
Waste 0.000 1 0.000 1 0.000 1 0.000
Tributary 60.000 2.000 1.000 7.440
* Runoff 0.000 2.000 1.000 7.440
* Runoff flow is in cfs/mile

Re: [Fwd: Hickory -Catawba WWTP]
rb
Subject: Re: [Fwd: Hickory -Catawba WWTP]
From: [e-mail]
Date: Mon, 22 Aug 2005 10:11:45 -0400
To: "Michelle Woolfolk" <[e-mail]>, "Jackie Nowell" <[e-mail]>
CC: "Pamela Behm" <[e-mail]>, "Darlene Kucken" <[e-mail]>
Here is a quick map of the area. Catawba WWTP is the little green triangle.
I checked the DWQ index numbers, and technically, the discharge is not in
the lake and therefore. technically, would noc be required to do a nutrient
res onse model as outlined in the Catawba basin plan. However, this is not
a fee Mowing body of water. During the spring and summer when Duke has
the water levels up. Lake Norman backs up all the way co the Lookout Shoals
Dam. And even during the winter draw down, Norman still backs up to the
I-40 bridge.
Given the above, I would consider this a cove and expect localized eutrophication
problems.. - --
Also, if we don't require a nutrient response model, we should have solid
justification for not doing so. When the riverkeeper and covekeepers find
out about the expansion, they will be expecting us to require the nutrient
response model as per the Catawba Basinplan. And rightfully so, in my opinion.
-Dave
-- Original Message --
Date: Fri, 19 Aug 2005 11:33:33 -0400
From: Michelle Woolfolk cHichelle.Woolfolk8ncmail.nec>
To: Jackie Nowell <jackie.noweil0nomail.net>
CC: Pamela Behm [e-mail]>,
Dave Toms <Dave.Toms0ncmail.net>
Subject: Re: (Fwd: Hickory -Catawba WWPP1
Thanks for waiting Jackie. I did speak with Dave Toms, the basinwide
planner, about this expansion as well. Comments for you and/or Hickory:
You indicated the Lyle Creek Level B model showed the dissolved
oxygen standard would be protected. Looking at a map, I don't
think a Lyle Creek Level B should be applied to a discharge that
is essentially at a mouth or cove. noes the Level B go into the ,
Ctll� ` and evaluate impacts to the river and headwaters of 4
L t. If not, this is something that needs to be
considered before providing speculative limits, particularly since
this is an 8-fold increase in effluent discharge. RThis project
is not currently on our list of projects; it you need for us to do 1
this, it would be at least 6 months before we get to it and longerd
for completion.)/ '
' Both Dave and I chink that chepeddit_iggngaa1 nutrient lead is not a
concern for Lake Norman as a whole!. -There are no eutrophicatiop
issues in this lake at this time., However, this discharge is
going into a wide area (almost a cove), so there may be agorae
',scanned imoacte. See below recommendations about monitoring.
• I assume that with this size of an expansion, regular instream
.monitoring Will be added to the NPDES permit. This includes
ypstream and downstream temperaeore.- DO, pH, and conductivity
several times per week. A downstream location in the Catawba
,River/Lake Norman should be considered in addition to a monitoring
location -in ,the.Lyle 'Creek mouth'. The station in the Lyle Creek
mouth should probably include,chlorophyA frequency: monthly,
duration: May co October, collection method: depth -integrated
sample). I also assume that effluent nutrient monitoring will
become part of the permit.
As of now I am neutral on the need for a diffuser.
Copying Dave Toms and Pam Behm to this email. If further issues arise,
or Hickory decides to model, please contact Pam directly and cc me to
emails.
Thanks
Michelle
Jackie Nowell wrote:
A gentle reminder.
Subject:
Hickory -Catawba WWTP
From:
Jackie Nowell <[e-mail]>
Date:
Thu, 21 Jul 2005 14:52:26 -0400
To:
Michelle Woolfolk <Michelle.Woclfolkencmail.net>
To:
Michelle Woolfolk <[e-mail]>
Hey Michelle.
The subject facility has requested spec limits for expansion from
0.225 MGD to 2.0 MGD. This is the former Town of Catawba WWTP
(Catawba County), purchased by Hickory earlier this year. This plant
discharges into Lyle Creek near the mouth. This is just as Lyle Creek
widens before its confluence with the Catawba River above Lake
Norman. There is a management strategy in place for Lyle Creek which
says any expanding dischargers will get limits of 8/2/6 (summer) and
16/4/6 (winter) due co potential overallocation in the Lyle Creek
watershed. (There are a number of small municipals discharging to
i P T'V w
! of 3 8/22/2005 11:45 AM

Re: [Fwd: Hickory -Catawba WWTP]
Lyle Creek and its tributaries. A Level B model was run years ago,
that included all the dischargers and the above limits were determined
to be protective of DO. This strategy has been in place since the late
'80s - early '90's and has not been updated).
I ran a prelim Level 8 model at the expansion flow of 2 MOD and it
would appear that limits of 8/2/6 etc. would protect the DO standard
in Lyle Creek. I need to look at it more closely. My questions are:
Are there any problems in Lake Norman, that an expansion like this
would effect? If the expansion is permitted, should we require a
diffuser? Are there any measure for TP/TN that should be included ?
We received this spec mid June and I should respond to them by end of
July. Any suggestions, input, etc.?
Hit me back via email or call with any recommendations (or warnings).
Thank you much
Jackie
Attachment: Michelle.Woolfolk.vcf
CATAWBA RIVER (Lookout Shoals Lak1belc
CATAW A RIVER (I
CATA /BA RIVER (I
2 of 3 8/22/2005 11:45 AM

Re: [Fwd: Hickory -Catawba WWTP]
•
lylecreekdischarge.jpg
Content -Encod ing: base64
Content -Type: image/pjpeg
3 of 3
8/22/2005 11:45 AM

Facility: Hickory - Catawba WWTP
NPDES#: NC0025542
Receiving Stream: Lyle Creek
Comment(s):
gage number not available
Low Flow Record Station Number:
Hydrologic Area Number:
Drainage Area Low Flow Record Station:
Qave Low Flow Record Station:
s7Q1 0 Low Flow Record Station:
w7Q10 Low Flow Record Station:
30Q2 Low Flow Record Station:
Drainage Area New Site:
MAR New Site:
Qave per Report Equation:
s7Q10 per Report Equation:
w7Q10 per Report Equation:
30Q2 per Report Equation:
Drainage Area Ratio:
[ new DA / Da at gage
Weighted Ratio:
Over -ride Inappropriate Site (y ):
HA10
must be < 400 sq. miles
72.80 sq. miles
1.1
80 cfs
12.97 cfs
19.31 cfs
27.55 cfs
Continue
#VALUE!
#VALUE!
#VALUE!
Drainage Area New Site:
MAR New Site:
Weighted Qave per Report Equation:
Weighted s7Q10 per Report Equation:
Weighted w7Q10 per Report Equation:
Weighted 30Q2 per Report Equation:
72.80 miles squared
1.1
#VALUE!
#VALUE!
#VALUE!
#VALUE!

Hickory - Catawba WWTP w/ 2.0 MGD expansion
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (1
IWC (%)
Allowable Concentration (ug
Fecal Limit
Ratio of 4.2 :1
Ammonia as NH3
(summer)
13 7Q10 (CFS)
2 DESIGN FLOW (MGD)
3.1 DESIGN FLOW (CFS)
17.0 STREAM STD (MG/L)
0 UPS BACKGROUND LEVEL
19.25 IWC (%)
88.29 Allowable Concentration (m
Ammonia as NH3
(winter)
13
2
3.1
1.0
0.22
19.25
4.27
7Q10 (CFS) '' ,,'
200/100m1 DESIGN FLOW (MGD) 2
DESIGN FLOW (CFS) 3.1
STREAM STD (MG/L) 1.8
UPS BACKGROUND LEVEL 0.22
IWC (%) 14.03
Allowable Concentration (m 11.48
7/7/2005

Hickory - Catawba WWTP w/ 2.0 MGD expansion
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (I
IWC (%)
Allowable Concentration (ugi
Fecal Limit
Ratio of 4.2 :1
Ammonia as NH3
(summer)
13 7Q10 (CFS)
2 DESIGN FLOW (MGD)
3.1 DESIGN FLOW (CFS)
17.0 STREAM STD (MG/L)
0 UPS BACKGROUND LEVEL
19.25 IWC (%)
88.29 Allowable Concentration (m
Ammonia as NH3
(winter)
7Q10 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Concentration (m
13
2
3.1
1.0
0.22
19.25
4.27
40111
2
3.1
1.8
0.22
14.03
11.48
7/7/2005

CTB32-LYLE CREEK2005
NPDES NO.
FACILITY NAME
RECEIVING STREAM
QW
BOD5
NH3
DO
CL
TOX TEST
IWC
7Q10
NC0024252
Conover Northeast WWTP
Lyle Creek
1.50000
8,16
2,4
5
m
Chronic
32.0
5
NC0024279
Conover Southeast WWTP
McLin Creek - 001
0.30000
30
5
m
0.5
NC0024279
Conover Southeast WWTP
McLin Creek - 002
0.30000
30
5
m
NC0026549
South Claremont WWTP
UT McLin Creek
0.10000
30
4
m
Chronic
61.0
0.1
NC0058742
Heater Util-Country Valley Subd.
Hagan Fork
0.10000
30
NC0032972
C & C Mobile Home Park
Lyle Creek
0.01500
30
14,m
m
NC0025542
Catawba WWTP
Lyle Creek
0.22500
30
Chronic
2.1
16
NC0044059
Bunker Hill High School
UT Lyle Creek
0.01500
16,30
4.3,15
m
NC0032662
North Claremont WWTP
Mull Creek
0.10000
30
5
Chronic
13.0
1
NC0081370
Claremont-McLin Cr WWTP
McLin Creek (prop.)
0.30000
8,16
2,4
5
28
Chronic
9.0
5
2.95500

Hickory -Catawba WWTP w/ 2.0 MGD expansion
Residual Chlorine
7010 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (I
IWC (%)
Allowable Concentration (ug)
Fecal Limit
Ratio of 5.2 :1
16
2
3.1
17.0
0
16.23
104.74
Ammonia as NH3
(summer)
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Concentration (m
Ammonia as NH3
(winter)
7Q10 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Concentration (m
16
2
3.1
1.0
0.22
16.23
5.03
29
2
3.1
1.8
0.22
9.66
16.58
6/21/2005

[Fwd: Re: hickory wwtps??]
Subject: [Fwd: Re: hickory wwtps??]
From: Dana Folley <[e-mail]>
Date: Thu, 26 May 2005 10:24:25 -0400
To: Jon Risgaard <[e-mail]>, Jackie Nowell <[e-mail]>
Here's the skinny on the Hickory Catawba WWTP from Susan, the Hickory Pretreatment Coordinator.
Dana Rees Folley
NC Division of Water Quality - Pretreatment (PERCS)
1617 Mail Service Center, Raleigh NC 27699-1617
919-733-5083 ext 523, fax - NEW!! 919-733-0059
http://h2o.enr.state.nc.us/Pretreat/index.html
Subject: RE: hickory wwtps??
From: "Susan McNeely" <[e-mail]>
Date: Thu, 26 May 2005 10:07:05 -0400
To: "Dana Folley" <[e-mail]>
Their was one hosiery mill, Meyers Inds., Inc., but it has closed down. We had sent out an IWS when they
were in business and then they only used 8,950 gals. per day. Let me know if I can be of further
assistance. SUSAN
Original Message
From: Dana Folley [mailto:[e-mail]]
Sent: Wednesday, May 25, 2005 12:36 PM
To: Susan McNeely
Cc: John Lesley; Jon Risgaard
Subject: Re: hickory wwtps??
Susan, can you reply confirming that there are no SIUs into the Hickory Catawba WWTP,
NC0025542? And that you do include this area in your IWS efforts? Thanks!
Dana Rees Folley
NC Division of Water Quality - Pretreatment (PERCS)
1617 Mail Service Center, Raleigh NC 27699-1617
919-733-5083 ext 523, fax - NEW ! ! 919-733-0059
http://h2o.enr.state.nc.us/Pretreat/index.html
John Lesley wrote:
Yes the Town of Catawba WWTP does indeed belong to the City of Hickory. There are no
SIUs in Catawba and therefore no program... there was a Pretreatment Program in Catawba
prior to me coming to the pretreatment unit in 1993... they had a textile manufacturer that has
long since closed. If you need anymore info you may need to contact Susan. JL
Dana Folley wrote:
1 of 2 10/3/2005 9:43 AM

[Fwd: Re: hickory wwtps??]
Alb
Jon's out till Friday and we had an inquiry from our NPDES Unit about whether the
Hickory Catawba WWTP has a Pretreatment Program, so I thought I'd look into it. Is
this a Hickory WWTP? NPDES said this was formerly the Town of Catawba WWTP
(NC0025542)? On the map I do indeed see a Town of Catawba in the Hickory vicinity,
but it's on the east side of Claremont, three Pretreatment Programs away geographically,
so it seems odd that Hickory would take it over??? maybe it's related to the
Catawba River south of Hickory?7777?777 ...egad anything you can help clarify
would be great! And if you do know this WWTP and it's not part of Hickory, do they
have any SIUs (if it is part of Hickory I'll email Susan McNeely to find out about SIUs)?
Dana Rees Folley
NC Division of Water Quality - Pretreatment (PERCS)
1617 Mail Service Center, Raleigh NC 27699-1617
919-733-5083 ext 523, fax - NEW!! 919-733-0059
http://h2o.enr.state.nc.us/Pretreat/index.html
Re: hickory wwtps??
Content -Type: message/rfc822
Content -Encoding: 7bit
2 of 2 10/3/2005 9:43 AM

HSMM
ARCHITECTS ENGINEERS PLANNE RS
May 9, 2005
Ms. Susan. A. Wilson
NCDENR Division of Water Quality
Point Source Branch — Western Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
MAY 1 2 2005
DE RC • atiATEFc QUALITY
Pot -t. s'OURCE BRANCH
Re: Request for Speculative Limits
Proposed WWTP Expansion and Renovation to 2.0 MGD
Town of Catawba WWTP
City of Hickory, NC
HSMM Commission No. 60709
Dear Ms. Wilson:
The City of Hickory wishes to expand and to renovate its Town of Catawba Wastewater
Treatment Plant (WWTP). The proposed project will increase the flow capacity of the WWTP
from 0.225 MGD to 2.0 MGD. Therefore, on behalf of the City of Hickory, we request that the
department issue speculative limits for the discharge at 2.0 MGD. Please find enclosed, a
topographic map showing the location of the WWTP and the location of the discharge to Lyle
Creek. The coordinates of the discharge are noted on the map as well.
Should you have any questions or require additional information, please feel free to contact us at
[phone].
Sincerely,
HSiviM
Richard Anderson, P.E.
Enclosures: As noted
Copy to: Mr. Kevin Greer, P.E., City of Hickory
Mr. Jim Tindall, P.E. HSMM
Hayes, Seay, Mattern & Mattern, Inc. ARCHITECTS ENGINEERS PLANNERS
1460 John B. White, Sr., Boulevard Sparlonburg, SC 29306 TeI.:864.597.0580 Fax:[phone] www.hsmm.com

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