NC0004812_Permit (Modification)_20060412

NPDES DOCUWEMT SCAMMIMS COVER SHEET
NPDES Permit:
NC0004812
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
C-115'e—rmit
Modification
Compliance 1 Enforcement
Permit History
Date Range:
Corres ondence
Document Date:
April 12, 2006
TNIS DOCUMENT IS PRINTED ON REUSE PAPER - IGNORE ANY CONTENT ON THE
REVERSE SIDE

i
ly.."
-1
April 12, 2006
Mr. Mike Church
Environmental Engineer
Pharr Yarns
100 Main St.
McAdenville, North Carolina 28101
Dear Mr. Church:
Michael F. Easley, Govemor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Subject: Permit Modification
Permit NC0004812
Pharr Yarns WWI'P
Gaston County
The NPDES Unit has received your permit modification request concerning the effluent limitations for
sulfide, phenols and total chromium in the January 21, 2005 permit. We have evaluated the information
submitted and determined that limits for these parameters should be revised.
Based on effluent guidelines from 40 CFR 410.70 Subpart G and a monthly average production value of
24000 lb/day (which will be used in the calculation of both daily maximum and monthly average limits), the
revised limits are as follows:
• Sulfide = 2.9 lbs/day (Monthly average); 5.8 lbs/day (Daily maximum)
■ Phenol = 1.4 lbs/day (Monthly average); 2.91bs/day (Daily maximum)
• Total Chromium = 1.4 lbs/day (Monthly average); 2.9 lbs/day (Daily maximum)
At this time, the Division is submitting a notice to the newspapers of general circulation in Gaston County,
inviting comments from you or your representative, the public and other agencies on the draft permit. The notice
should be published on or about April 12, 2006. Following a 30-day comment period, we will review all pertinent
comments received and take appropriate action on the permit issuance upon submission of all required data. Please
provide written comments on the draft permit no later than May 19, 2006. If you have any questions, please contact
me at [phone], extension 512.
512.
If you have any questions or comments concerning this draft permit, contact me at 919-733-5083 ext.
pectfully,)
R, Jacglyn M. Now ll
`E° NPIPES Western rogram
Attachments
cc: NPDES Files
Mooresville Regional Office / Surface Water Protection Section
PERCS
Aquatic Toxicology Unit
EPA Region IV/Marshall Hyatt A e
DEH IV ` hCarolma
'aturallrm
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwaterquality.ora Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer-50% Recycled/10% Post Consumer Paper

lr f 3�41 lr's�;� �f?sa Permit NC0004812
6-j
i
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
lum.0 ►viii1w
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,
Pharr Yarns, Incorporated
is hereby authorized to discharge wastewater from a facility located at the
Pharr Yarns Wastewater Treatment Plant
147 Willow Drive
McAdenville
Gaston County
to receiving waters designated as the South Fork Catawba River in the Catawba
River Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective xxxxxxxxxxxxxxxxxx.
This permit and authorization to discharge shall expire at midnight on January 31, 2009.
Signed this day
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0004812
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under
the permit conditions, requirements, terms, and provisions included herein.
Pharr Yarns, Inc. is hereby authorized to:
1. Continue to operate an existing 1.0 MGD wastewater treatment facility for the
treatment of industrial and domestic wastewater consisting of an extended
aeration basin, two clarifiers with alum and polymer addition, two return
activated sludge pumps, three mixed media pressure filters, two filter pumps, an
aerobic digester, sludge thickening tank, dewatering belt press, sludge storage
and drying pad, tablet type chlorinator, and dual chlorine contact chamber
located at Pharr Yarns Wastewater Treatment Plant, 147 Willow Drive,
McAdenville in Gaston County, and
2. Discharge from said treatment works at the location specified on the attached
map into the South Fork Catawba River, which is a classified WS-V waterbody in
the Catawba River Basin.
It is agreed that NPDES permit limits for 1-MGD will become effective upon
achievement of both of the following conditions:
• The monthly average effluent flow exceeds 0.5-MGD for
the first time
• Pharr Yarns, Inc. submits to DWQ's NPDES and Point
Source Compliance and Enforcement Units a certified
letter within 30 days following the first month that the
average monthly effluent flow from the Pharr Yarns WWTP
exceeds 0.5-MGD.

N00004812- Pharr Yarns, Inc.
Latitude:
35015'39" Sub -Basin: 03-08-36
Longitude:
81004'38"
Quad #:
F14SFJMount Holly, NC
Stream Class:
WS-V
Receiving Stream:
South Fork Catawba River
Permitted Flow:
1.0 MGD
Facility
x
Location
Yams,
North
Gaston County
County
NCOOD4812

Permit NC0004812
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until the f rst time the monthly
average flow exceeds 0.5 MGD, the Permittee is authorized to discharge from outfall 001. Such discharges
shall be limited and monitored by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS
CHARACTERISTICS
Monthly Average
Daily Max f num
' Measurement
Sample
Sample tocation,
Fre uenc
TYOO
I -(ow
0.5 MGD
Continuous
Recording
I Influent or Effluent
BOD5, 20oC
113.4 lbs/day
181.0 lbs/day
Weekly
Composite
Effluent
Total Suspended Solids
147.7 lbs/day
249.7 lbs/day
Weekly
Composite
Effluent
COD
475.0 lbs/day
849.6 lbs/day
Weekly
Composite
j Effluent
Sulfide
2.9 lbs/day
5.8 lbs/day
Weekly
Composite
Effluent
Phenols
1.4 lbs/day
2.9 lbs/day
Weekly
Grab
Effluent
Total Chromium
1.4 lbs/day
2.9 lbs/day
Weekly
Composite
Effluent
Fecal Coliform (geometric mean)
2001100 mL
400/100 mL
Weekly
Grab
Effluent, Upstream,
Downstream'
NH3-N
Weekly
Composite
Effluent
Dissolved Oxygen
Weekly
Grab
Effluent, Upstream,
Downstream'
H2
Weekly
Grab
Effluent
Temperature
- Daily
Grab
Effluent
Temperature
Weekly
Grab
Upstream,
Downstream
Conductivity
Weekly
Grab
Effluent, Upstream,
Downstream'
No Effluent Limitation (mg/L)
Weekly
Composite
Effluent
Total Nitrogen
(NO2 + NO3 + TKN)3
No Effluent Limitation (lb/month) (3)
Monthly
Calculated
Effluent
3
13,698 lb/year (annual mass loading) ()
Annually
Y
Calculated
(Calculated)
Effluent
Total Phosphorus3
No Effluent Limitation (mg/L)
Weekly
Composite
Effluent
No Effluent Limitation (lb/month) (3)
Monthly
Calculated
Effluent
1522 lb/year (annual mass loading) (3)
Annually
(Calculated)
Effluent
Color4
Monthly
Composite
Effluent
Color4
Monthly
Grab
Upstream,
Downstream'
Chronic Toxicit s
Quarterly
Composite
Effluent
Total Residual Chlorines
28 /L Weekly
Grab
Effluent
Notes:
I Sample locations: Upstream - upstream 50 feet or more above the discharge point; Downstream - downstream at
Highway 7 bridge. Instream monitoring shall be conducted 3/week from June through September and once per week
the remainder of the year.
2 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
3 The annual mass loading for total nitrogen and total phosphorus for Outfall 001 shall be monitored and calculated as
prescribed in Part A.(5.).
4 See Special Condition A.(6.) for more information on the permit requirements associated with color. Effluent color
samples shall be taken year round on a monthly basis. Instream sampling shall be performed on a monthly basis from
April through October.
5 Chronic toxicity (Ceriodaphnia, P/F test at 0.62%) shall be performed in January, April, July and October. See Part
A.(3.)
6 The TRC limit takes effect September 1, 2006.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0004812
A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the month following the first time the monthly average,flow exceeds 0.5-
MGD and lasting until permit expiration, the Permittee is authorized to discharge from outfall 001. Such
discharges shall be limited and monitored by the Permittee as specified below:
CHARACTERISTICS
Monthly Average
Daily Maximum
Measurement
:Frequency
Sample
Type
Sample Location'
Flow
1.0 MGD
Continuous
Recording
Influent or Effluent
BODs, 20oC
204.7 lbs/day
318.0 lbs/day
3Meek
Grab
Effluent
Total Suspended Solids
239.0 lbs/day
386.7 lbs/day
3Meek
Grab
Effluent
COD
675.9 lbs/day
1150.9 lbs/day
3Meek
Grab
Effluent
Sulfide
2.9 lbs/day
5.8 lbs/day
Weekly
Grab
Effluent
Phenols
1.4 lbs/day
2.9 lbs/day
Weekly
Grab
Effluent
Total Chromium
1.4 lbs/day
2.9 lbs/day
Weekly
Grab
Effluent
Fecal Coliform (geometric mean)
200/100 mL
400/100 mL
3Meek
Grab
Effluent, Upstream,
Downstream'
NH3-N
3/Week
Composite
Effluent
Dissolved Oxygen
3Meek
Grab
Effluent, Upstream,
Downstream'
H2
3/Week
Grab
Effluent
Temperature
Daily
Grab
Effluent
Temperature
3Meek
Grab
Upstream,
Downstream
Conductivity
3Meek
Grab
Effluent, Upstream,
Downstream'
No Effluent Limitation (mg/L)
Weekly
Composite
Effluent
Total Nitrogen No Effluent Limitation (lb/month) (3)
Monthly
(Calculated)
Effluent
(NO2 + NO3 + TKN)3 3
27397 lb/year (annual mass loading) (�
Annually
y
Calculated
( )
Effluent
No Effluent Limitation (mg/L)
WeeklyComposite
Effluent
Total Phosphorus3 No Effluent Limitation (lb/month) (3)
MonthlytCaI
culated
Effluent
3044lb/year (annual mass loading) (3)
Annually
(Calculated)
Effluent
Color4
Monthly
Composite
Effluents
Color4
Monthly
Grab
Upstream,
Downstreams
Chronic Toxicit s
FQuarterly
Composite
Effluent
Total Residual Chlorines
28 /L I 3Meek
Grab
Effluent
Notes:
1 Sample locations: Upstream - upstream 50 feet or more above the discharge point; Downstream - downstream at
Highway 7 bridge. Instream monitoring shall be conducted 3/week from June through September and once per week
the remainder of the year.
2 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
3 The annual mass loading for total nitrogen and total phosphorus for Outfall 001 shall be monitored and calculated as
prescribed in Part A. (5.).
4 See Special Condition A. (6.) for more information on the permit requirements associated with color. Effluent color
samples shall be taken year round on a monthly basis. Instream sampling shall be performed on a monthly basis from
April through October.
5 Chronic toxicity (Ceriodaphnia, P/F test at 1.2%) shall be performed in January, April, July and October. See Part A.(4.)
6 The TRC limit takes effect September 1, 2006.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0004812
A. (3.) CHRONIC TOXICITY MONITORING/LIMIT — 0.5-MGD
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 0.62%.
The permit holder shall perform at a minimum, quarteriu monitoring using test procedures outlined
in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998,
or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions. The tests will be performed during the months of
January, April, July and October. Effluent sampling for this testing shall be performed at the
NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below
the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the
two following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are
specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -
February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the
parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ
Form AT-3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and
all concentration/response data, and be certified by laboratory supervisor and ORC or approved
designate signature. Total residual chlorine of the effluent toxicity sample must be measured and
reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT)
test form indicating the facility name, permit number, pipe number, county, and the month/year of
the report with the notation of "No Flow" in the comment area of the form. The report shall be
submitted to the Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival, minimum control organism reproduction, and appropriate environmental
controls, shall constitute an invalid test and will require immediate follow-up testing to be completed
no later than the last day of the month following the month of the initial monitoring.

Permit NC0004812
A. (4.) CHRONIC TOXICITY MONITORING/LIMIT — 1.0-MGD
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 1.2%.
The permit holder shall perform at a minimum, quarterlu monitoring using test procedures outlined
in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998,
or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions. The tests will be performed during the months of
January, April, July and October. Effluent sampling for this testing shall be performed at the
NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results, in a failure or ChV below
the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the
two following months as described in "North Carolina Phase 11 Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are
specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -
February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the
parameter code TGP313 for the pass/fail results and THP313 for the Chronic Value. Additionally, DWQ
Form AT-3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch. no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and
all concentration/response data, and be certified by laboratory supervisor and ORC or approved
designate signature. Total residual chlorine of the effluent toxicity sample must be measured and
reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT)
test form indicating the facility name, permit number, pipe number, county, and the month/year of
the report with the notation of "No Flow" in the comment area of the form. The report shall be
submitted to the Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival, minimum control organism reproduction, and appropriate environmental
controls, shall constitute an invalid test and will require immediate follow-up testing to be completed
no later than the last day of the month following the month of the initial monitoring.

Permit NC0004812
A.(5.) TOTAL NITROGEN AND PHOSPHORUS MONITORING
The Permittee shall calculate the annual mass loading of total nitrogen as the sum of
monthly loadings, according to the following equations:
(a) Monthly Mass Loading (lb/mo.) = TN/TP x Q x 8.34
where: TN = the average total nitrogen concentration (mg/L) of the
composite samples collected during the month at
the outfall
TP = The average total phosphorus concentration (mg/L) of
the composite samples collected during the month
at the outfall
Q = the total wastewater flow discharged during the
month at the outfall(MG/mo.)
8.34 = conversion factor, from (mg/L x MG) to pounds
(b) Annual Mass Loading (lb/yr) = Y_ (Monthly Mass Loadings) for the calendar year
The Permittee shall report the total nitrogen and total phosphorus concentration for
each sample and the monthly mass loading in the appropriate self -monitoring report
and the annual mass loading of total nitrogen and total phosphorus in the December
self -monitoring report for the year.
A (6). Color Permitting Requirements for Tier 1 Facility
This facility has been classified as a Tier 1 color discharger. The permittee will conduct
color monitoring of instream stations (upstream, downstream) on a monthly basis during
summer season (April -October). The permittee will record whether a color plume was
observed around the outfall pipe during the monthly instream sampling events, and
include that information on the monthly discharge monitoring report. Effluent samples will
be collected monthly for color on a year-round basis. Color samples will be analyzed for
ADMI color at natural pH. Effluent samples will consist of 24-hour composites, while
instream samples will be collected as grabs. Samples will be analyzed by a state certified
laboratory.
If data show that water quality standards for color are being violated by the discharge
permitted by the terms of this permit, then the Director may reopen this permit for the
purpose of imposing additional requirements pursuant to 15A NCAC 2H.0114.
Alternatively, if future conditions change and color is no longer a component of the influent
wastestream, then the permittee may request a permit modification to remove color permit
requirements.

SOC PRIORITY PROJECT: No
To: Permits and Engineering Unit
Water Quality Section
Attention: Carolyn Bryant
Date: February 7, 2005
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Gaston
NPDES Permit No.: NC0004812
MRO No.: 04-71
PART I - GENERAL INFORMATION
1. Facility and address: Pharr Yarns WWTP
101 Main Street
Post Office Box 1939
McAdenville, N.C. 28101
2. Date of investigation: January 13, 2005
3. Report prepared by: Michael L. Parker, Environmental Engineer II
4. Person contacted and telephone number: Mike Church, [phone].
5. Directions to site: From the jct. of Hwy. 7 and I-85 in eastern Gaston County, travel
south on Hwy. 7 z 0.2 mile and turn left on Dickson Drive (no SR number). The WWTP
site is on the left side of Dickson Drive after traveling 0.2 mile.
6. Discharge point: Latitude: 350 15' 40"
Longitude: 810 04' 39"
Attach a USGS Map Extract and indicate treatment plant site and discharge point on map.
USGS Quad No.: F 14 SE
7. Site size and expansion area consistent with application: Yes. Very limited area is
available for expansion, if necessary.
8. Topography (relationship to flood plain included): The WWTP site did not appear to be
located in the 100 year flood plain (many of the primary treatment units are elevated and
protected from flooding by a concrete wall).
9. Location of nearest dwelling: Approx. 200f feet from the WWTP site.

Page Two
10. Receiving stream or affected surface waters: South Fork Catawba River
a. Classification: WS-V
b. River basin and subbasin no.: Catawba 030834
C. Describe receiving stream features and pertinent downstream uses: Excellent
flow in the receiving stream. Down stream uses are fish and wildlife propagation,
secondary recreation, and agriculture.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater: 1.0 MGD (Design Capacity)
b. What is the current permitted capacity: 0.50 MGD and 1.0 MGD.
C. Actual treatment capacity of current facility (current design capacity): 1.0 MGD
d. Date(s) and construction activities allowed by previous ATCs issued in the
previous two years: There have been no ATCs issued to this facility in the past
two years.
e. Description of existing or substantially constructed WWT facilities: The existing
WWT facilities consist of a bar screen followed by an aeration basin with fixed
floating aerators, polymer and alum addition, two (2) clarifiers, flow measurement
(continuous flow recording device with totalizer), three (3) mixed media pressure
filters, a sludge thickening tank, an anaerobic sludge digester, a sludge centrifuge,
a belt filter press, and tablet chlorine disinfection with contact basin. This facility
has two power sources (Duke Power and the adjacent mill).
f. Description of proposed WWT facilities: There are no proposed WWT facilities at
this time.
g. Possible toxic impacts to surface waters: Chlorine is added to the waste stream.
This facility has consistently passed its toxicity testing.
h. Pretreatment Program (POTWs only): Not Needed.
2. Residual handling and utilization/disposal scheme: Residuals are currently thickened and
then processed in a belt filter press. From there they are stored on a concrete pad until
such time as they are taken for disposal to the Gaston County Landfill. Several years ago,
Pharr Yarns obtained approval to conduct a pilot study on static -pile composting of their
residuals, however, they were unable to maintain the proper temperature to achieve the
necessary pathogen reduction.
3. Treatment plant classification: Class II (based on current flow of 0.500 MGD)
4. SIC code(s): 2262 Wastewater code(s): 55 MTU code(s): 05602

Page Three
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? Public monies were not used in the construction of this facility.
2. Special monitoring or limitations (including toxicity) requests: None at this time.
3. Important SOC/JOC or Compliance Schedule dates: This facility is neither under an SOC
nor is one being considered at this time.
4. Alternative analysis evaluation: There is no reasonable alternative for this facility.
Municipal sewer of sufficient capacity to accept this waste flow is currently unavailable to
this site. Spray/Drip Irrigation and/or subsurface disposal is not an option due to the lack of
sufficient area.
PART IV - EVALUATION AND RECOMMENDATIONS
Pharr Yarns (PY) requests renewal of the subject Permit. There have been no changes to the
existing WWT facility or the NPDES permit since the permit was last renewed.
PY had previously been contacted by the Division regarding the possibility of nutrient limits
being included in the permit upon renewal. As a result, PY evaluated their treatment process to
determine whether the existing WWT facilities could comply with the anticipated nutrient limits
(1.0 mg/l TP and 6.0 mg/l TN) without additional modifications and/or upgrade. Based on this
evaluation, PY has concluded that additional modifications would be necessary in order to comply
with the projected nutrient limits. Such being the case, if nutrient limits are to be incorporated into
this permit at renewal, either a compliance schedule will need to be included in the NPDES permit
or the nutrient limits will need to be phased in at a mutually acceptable time frame.
Recent development plans in the Town of McAdenville area has prompted negotiations
between the Town and PY about the possibility of PY accepting all the wastewater currently
tributary to the Town's existing WWTP. The existing PY WWTP has the capacity to accept this
additional wastewater, however, the Town has yet to commit to the connection to PY due to funding
concerns. If development pressure continues in this area, elimination of the Town's WWTP by
connecting to the PY WWTP may become a reality during the term of next NPDES permit.
Pending recei t and approval of the WLA, it is recommended that the Permit be renewed as
requested.
Signature of Report Preparer Date
270T
Water Quality Re tonal Supervisor Date
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