HomeMy WebLinkAboutNC0021857_Speculative Limits_20010504NPDES DOCU BENT SCANNIN`: COVER SHEET
NPDES Permit:
NC0021857
Newland WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
201 Facilities Plan
Instream Assessment (67b)
Speculative Limits`°`
..RR'.;wIJ.VFaFA�"M . pro° ✓...
Environmental Assessment (EA)
Document Date:
May 4, 2001
This document ins printed on reusce paper - igziore any
content on the reYerse aside
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NCDENR
Mr. Cecil Lewis
Public Works Supervisor
P. O. Box 429
Newland, North Carolina 28657
Dear Mr. Lewis:
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Kerr T. Stevens, Director
Division of Water Quality
May 4, 2001
Subject: Speculative Limits
Town of Newland
NC0021857
Avery County
This letter is in response to your request (dated January 18, 2001) for speculative effluent
limits for a proposed expansion to 0.8 MGD for the Town of Newland wastewater treatment plant in
Avery County. Please note that there have been several speculative limit requests by the town over the
past year (for 0.4 MGD, 0.6 MGD, and now 0.8 MGD). Since staff resources are limited, we urge that
the town perform sufficient planning efforts to determine appropriate expansion needs prior to any
future speculative limits requests. Please note that requests for additional flow will ultimately need to
be justified according to 15A NCAC 2H.0219.
This facility is currently permitted to discharge up to 0.32 MGD of treated wastewater to the
North Toe River, a Class C-Trout water in the French Broad River Basin (Subbasin 040306). The
proposed expansion is for a design capacity of 0.8 MGD. The proposed discharge location would
remain the same, with a drainage area of approximately 10 square miles and an estimated summer
7Q10 flow of 3.3 cfs. According to the 2000 French Broad River Basinwide Plan, no dissolved oxygen
(DO) problems have been documented in the subject subbasin, and the receiving stream is not listed
as impaired in the Draft 303(d) list. No interaction with the other NPDES permitted domestic
wastewater discharger to the North Toe River (Town of Spruce Pine) is anticipated.
Based on the available information, speculative limits for the proposed expansion are presented
in Table 1 (attached). The only changes between the current permit limits and the speculative limits
are:
• Increase in monthly effluent flow from 0.32 MGD to 0.8 MGD
• Change in monthly effluent ammonia limits from 6.0 mg/1 to 3.1 mg/1 in summer, and from 17
mg/1 to 7.9 mg/1 in winter.
• Addition of a 5.0 mg/1 effluent limit for dissolved oxygen.
• Increase in monitoring frequencies appropriate for a Grade III facility.
The speculative limits presented here are based on our understanding of the proposal and of
present environmental conditions. These speculative limits are not binding unless they become part of
an issued NPDES permit. Response to a speculative limit request does not guarantee that the Division
will issue the Town of Newland an NPDES permit modification to expand the discharge of treated
wastewater into waters of the State. Nor can we guarantee that the effluent limitations and other
requirements included in any permit will be exactly as presented here. In accordance with the North
N. C. Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Internet: h2o.enr.state.nc.us
Phone: (919) 733-5083
fax: (919) 733-0719
DENR Customer Service Center: 1 800 623-7748
NC0021857
Town of Newland
Page 2 of 2
Carolina General Statutes, the practicable waste treatment and disposal alternative with the least
adverse impact on the environment must be implemented. Non -discharge alternatives, such as spray
irrigation or connection to a regional wastewater treatment facility, are considered to be
environmentally preferable to a discharge. Therefore, prior to submittal of an NPDES permit
modification, a detailed alternatives analysis must be prepared to assure that the environmentally
sound alternative was selected from the reasonably cost-effective options. A guidance document to
assist you or your consultant in preparing an engineering alternatives analysis (EAA) was previously
enclosed with the last speculative limit request.
All information pertaining to this request has been sent to our Central Files for storage. If it
becomes necessary to request an NPDES permit modification, please submit a complete application
package including Short Form D, EAA, and appropriate fee. The proposed activity is considered a
major modification, which requires a fee of $215 and is subject to Public Notice.
If you have any additional questions about these limits or the NPDES application process,
please contact Tom Belnick at (919) 733-5083, extension 543.
Sincerely,
David A. Goodrich
Supervisor, NPDES Unit
cc: Michael Calhoun, Vaughn and Melton Engineers, PO Box 16339, Asheville, NC 28816
Asheville Regional Office, WQ
Central Files
NPDES Files
A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -
SPECULATIVE
Permit No. NC0021857
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall serial number
001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
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.TYPE
Sample
Location.'
Flow
0.800 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C
30.0 mg/l
45.0 mg/I
_ 3/Week
Composite
E,12
Total Suspended Residue
30.0 mg/I
45.0 mg/l
3/Week
Composite
E,I2
NH3 as N (April 1 - October 31)
3.1 mg/I
3/Week
Composite
E
NH3 as N (November 1 - March 31)
7.9 mg/I
3/Week
Composite
E
Total Residual Chlorine
28 ug/I
3/Week
Grab
E
Fecal Coliform (geometric mean)
200/100 mi
400/100 ml
_
3/Week
Grab
E
Temperature
Daily
Grab
E
pH3
3/Week
Grab
E
Dissolved Oxygen°
3/Week
Grab
_ E
Total Nitrogen (TN)
Semi-annual
Composite
E
Total Phosphorus (TP)
Semi-annual
Composite
E
Notes:
1 Sample locations: E - Effluent, I - Influent
2 The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of the respective influent value (i.e., 85% removal).
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/I.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
IWC Calculations
Town of Newland
NC0021857
Prepared By: Tom Belnick, NPDES Unit
Enter Design Flow (MGD):
Enter s7Q10(cfs):
Enter w7010 (cfs):
0.4 1
3.3
4.8
Residual Chlorine Ammonia (NH3 as N)
(summer)
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (I
IWC (%)
Allowable Conc. (ug/I)
Fecal Limit
(If DF >331; Monitor)
(If DF <331; Limit)
Dilution Factor (DF)
3.3 7Q10 (CFS)
0.4 DESIGN FLOW (MGD)
0.62 DESIGN FLOW (CFS)
17.0 STREAM STD (MG/L)
0 UPS BACKGROUND LEVEL
15.82 IWC (%)
107 Allowable Conc. (mg/I)
Ammonia (NH3 as N)
(winter)
3.3
0.4
0.62
1.0
0.22
7010 (CFS) 4.8
200/100m1 DESIGN FLOW (MGD) 0.4
DESIGN FLOW (CFS) 0.62
STREAM STD (MG/L) 1.8
6.32 UPS BACKGROUND LEVEL 0.22
IWC (%)
Allowable Conc. (mg/I) 14.0
Oz,"\\-- ow to I 644toi,
ar,4.431 ore AI I VA
NPDES Servor/Current Versions/IWC
C
4/28/00
Vaughn & Melton
Consulting Engineers
Post Office Box 16339
Asheville, North Carolina 28816
(828) 253-2796
Fax (828) 253-4864
Email: vandm@vaughnandmelton.com
November 22, 1999
Mr. Tom Belnick
North Carolina Department of
Environmental & Natural Resources
Division of Water Quality
Water Quality Section
P. O. Box 29535
Raleigh, NC 27626-0535
`�� Q [ iU v
291999
Dc';R - WA' ? QUALITY
POi+VT
RE: Town of Newland WWTP Expansion
NPDES Permit No. NC0021857
V&M Project No. 39901-01
Dear Mr. Belnick,
0
u
The purpose of this letter is to revise the request for planning limits for the Newland
Wastewater Treatment Plant Expansion in Avery County.
The revised average plant design capacity is 0.4 MGD. New peak design flow will
remain 1.0 MGD. This letter revises our April 29, 1999 request for planning limits
for an average capacity of 0.6 MGD. The location of the expansion will be at the
site of the existing plant. The outfall is located at latitude 36° 05' 20" and longitude
81 ° 56' 57". The discharge is to the North Toe River.
Feel free to give me a call if you have any questions with regard to the above.
Sincerely,
VAUGHN & MELTON CONSULTING ENGINEERS
Michael A. Calhoun, PE
MAC/jm
Park Terrace Center • 1318-F Patton Avenue • Asheville, North Carolina 28806
Re: Town of Newland; NC0021857; Avery County
s/EC 6RE@i1E)T
Cvr f? reglwtt
Subject: Re: Town of Newland; NC0021857; Avery County
Date: Tue, 23 Jan 2001 15:22:26 -0500
From: Mike Parker <Mike.Parker@ncmail.net>
Organization: NC DENR - Asheville Regional Office
To: Tom Belnick <tom.belnick@ncmail.net>
I am aware of all of this but the Town has apllied to the USDA Rural
Development for funding an upgrade to 0.800 mgd. A-95 and Env. Assessment
have been completed. I think they have or will receive money for this
project. I recommend that you run the spec. limits at 0.800 mgd. Call me
if you have questions. M. Parker
Tom Belnick wrote: / �re 5
4,41�
> Mike- I thought you had Avery County; if not, please pass along. The
> Town of Newland has a permitted flow of 0.32 MGD. Their consultant R40 1
> (Michael Calhoun with Vaughn and Melton) says they are at 80% capacity
> and on a self-imposed moratorium. The consultant initially requested
> spec limits at 0.6 MGD in June 1999. Then he requested spec limits at
> 0.4 MGD in November 1999. Now he's requesting spec limits at 0.8 MGD.
> I called him and asked what's going on. It sounds like they're asking
> for whatever additional flow will be funded. It sounds like the 0.6 MGD
> request was submitted to Construction Grants, who turned them down due
> to I&I issues. They are now requesting funding from Rural Development
> for the 0.8 MGD expansion, citing future expansion along the 181
> corridor and Mt. Glen area. I still need to touch base with
> Construction Grants, to get their input on the I&I issue. Whats your
> thoughts on all this? I'm reluctant to do another spec request, when
> the flow justification keeps changing.
>
> Mailto:tom.belnick@ncmail.net
> N.0 DENR-DWQ/NPDES Unit
> 1617 Mail Service Center, Raleigh NC 27699-1617
> Work: (919) 733-5083 ext. 543
> Fax: (919) 733-0719
Mike Parker - Mike.Parker@ncmail.net
North Carolina Dept. of Environment and Natural Resources
Asheville Regional Office
Division of Water Quality - Water Quality Section
59 Woodfin Place
Asheville, NC 28801
Tel: 828-251-6208
Fax: 828-251-6452
Mike Parker <Mike.Parker@ncmail.net>
NC DENR - Asheville Regional Office
Division of Water Quality - Water Quality Section
1 of 2 1/23/01 3:32 PM
Re: Town of Newland; NC0021857; Avery County
Subject:
Date:
From:
Organization:
To:
CC:
Tom,
Re: Town of Newland; NC0021857; Avery County
Wed, 14 Feb 2001 17:02:41 -0500
Daniel Blaisdell <Daniel.Blaisdell@ncmail.net>
DWQ
Tom Belnick <tom.belnick@ncmail.net>
Don Evans <Don.Evans@ncmail.net>
I checked into the status of Newland. They have submitted 2 applications to
the State Grant program. One is for the I/I rehab, and the other is for an
expansion from .32 to .6 mgd. However, neither of the applications has
garnered enough points in our priority system to receive funding. I do not
think funding was "turned down" due to I/I issues. Our inability to fund
Newland's proposed project(s) is simply a matter of not having adequate
points to fall into the fundable range of the State Grant program.
If you need any other info, please give me a call at 715-6211.
Thank You,
Dan Blaisdell
Tom Belnick wrote:
Dan- Dave Goodrich suggested I run this by CG&L. The Town of Newland is
currrently permitted to discharge up to 0.32 MGD. They have requested
speculative limits in the past for 0.4 MGD and 0.6 MGD, and are now
requesting spec limits for 0.8 MGD. Their consultant indicated that the
0.6 MGD expansion request was submitted to CG&L and turned down due to
I&I issues, and now they're seeking funding through USDA Rural
Development for the 0.8 MGD upgrade. Can you shed any light on the I&I
issues. Thanks.
Mailto:tom.belnick@ncmail.net
N.0 DENR-DWQ/NPDES Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Work: (919) 733-5083 ext. 543
Fax: (919) 733-0719
1 of I 2/15/01 9:18 AM
Vaughn & Mellon
Consulting Engineers
Post Office Box 16339
Asheville, North Carolina 28816
(828) 253-2796
Fax (828) 253-4864
Email: vandm@vaughnandmelton.com
January 18, 2001
Mr. Tom Belnick
North Carolina Department of
Environmental & Natural Resources
Division of Water Quality
Water Quality Section
P. O. Box 29535
Raleigh, NC 27626-0535
RE: Town of Newland WWTP Expansion
NPDES Permit No. NC0021857
V&M Project No. 30024-01
Dear Mr. Belnick,
r
I e
alk
The purpose of this letter is to request planning limits for the Newland Wastewater
Treatment Plant Expansion in Avery County. utj CerAhli r., CL,\ egA Or, 144^A,WI
We are currently working with!Rural Development or funding of the project.
The average plant design capacity is 0.8 MGD. The peak design flow is 2.0 MGD.
The location of the expansion will be at the site of the existing plant. The outfall is
located at latitude 36° 05' 20" and longitude 81 ° 56' 57". The discharge is to the
North Toe River.
Feel free to call me at 253-2796 if you have any questions with regard to the above.
Sincerely,
VAUGHN & MELTON CONSULTING ENGINEERS
./vt u • C Lt -u-.—
Michael A. Calhoun, PE
MAC/jrc
Cod fe t . 32. MCl7 Low —
spec 09- 0.6 Mui
Sptc qv) 0.4MC
veC 1(0j U.i! M64
Park Terrace Center • 1318-F Patton Avenue • Asheville, North Carolina 28806