NC0060755_Permit Issuance_19970707

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
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July 7, 1997
Mr. Carl Daniel, Vice President
Carolina Water Service, Inc. of North Carolina
P.O. Box 240704 )
Charlotte, North Carolina 28224 Subject: NPDES Permit Issuance
Permit No. NCO060755
Saddlewood Subdivision
Gaston County
Dear Mr. Daniel:
in accordance with the application for a discharge permit received November 1. 1995, the Division is
forwarding herewith the subject NPDES permit. This permit is issued pursuant to the requirements of'
North Carolina General Statute 143-215.1 and the Memorandum ol'Agreement between North Carolina
and the US Environmental Protection Agency dated December 6, 1983.
Discharges tributary to the Crowders Creek drainage basin are targeted for removal by connection to
the Crowders Creek regional wastewater treatment plant. As you agreed in a telephone conversation with
David Goodrich and Mack Wiggins of my staff, the permittee shall submit a revised engineering alternative
analysis evaluating alternatives to discharge by January 1, 2001. Also as agreed in this discussion,
Carolina Water Service will have until April 1, 1998 to meet a Total Residual Chlorine limit of 17 ug/l.
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 take notice this permit is not transferable. Part 11, E.4. addresses the requirements to be
followed in case of change in ownership or control of this discharge.
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, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this pen -nit, please contact Mr. Mack Wiggins at telephone
number [phone], extension 542.
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
Permits and Engineering Unit
Facility Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Aftirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NCO060755
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, 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,
Carolina Water Service, Inc. of N.C.
is hereby authorized to discharge wastewater from a facility located at the
Saddlewood Subdivision
off of NCSR 2416
south of Gastonia
Gaston County
to receiving waters designated as an unnamed tributary to Crowders Creek in the Catawba River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts 1,
II, III, and IV hereof.
The. permit shall become effective August 1, 1997
This pen -nit and the authorization to discharge shall expire at midnight on September 30, 2001
Signed this day July 7, 1997
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Mangement Commission

Permit No. NCO060755
SUPPLEMENT TO PERMIT COVER SBEET
Carolina Water Service, Inc. of N.C.
is hereby authorized to:
1. Continue to operate the existing 0.009 M[GD extended aeration package plant consisting of a bar
screen, aeration basin, clarifier, aerated sludge holding tank, tablet chlorinator and chlorine
contact basin located at Saddlewood Subdivision, off of NCSR 2416, south of Gastonia,
Gaston County (See Part III of this Permit), and
2. Discharge from said"treatment works at the location specified on the attached map into an
'unnamed tributary to Crowders Creek which is classified Class C waters in the Catawba River
Basin.

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ROAD CLASSIFICATION SCALE 1:24 000
PRUARY141GHWAY LIGHT -DUTY ROAD. HARD OR I MILE
HARD SUFFACE IMPROVEDSURFACE 0
SE . OONDARY HIGHWAY 0 7000 FEET
HARD SURFACE =000= UNIMPROVEDRORD �11
I KILOMETER
Latitude: 35010'42�_ Longitude; 81 *10'59'
Map # G1 4NW Sub -basin 030837
Stream Class C
Discharge Class Domestic
Receiving Stre I am UT to ' Crowders Creek
,Permitexp. 09/30/2001 Ow 0.009MGD
OUAD LOCATION Carolina Water Service, Inc.
Saddlewood Subdivision
NCO060755
Gaston County

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April I - October 3 1) Permit No. NCO060755
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics
Flow
BOD, 5 day, 200C
Total Suspended Residue
NH3 as N
Dissolved Oxygen —
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Conductivity
Temperature
Discharge Limitations
Monitoring
Requirements
Measurement
Sample
*Sample
Monthly Avg. Weekly Ayg.
Daily Max
Frequency
Type
Location
0. 0 0 9 K/IGD
Weekly
Instantaneous
I or E
5.0 mg/l
7.5 mg/1
Weekly
Grab
E
30.0 mg/I
45.0 mg/I
Weekly
Grab
E
2.0 mg/I
Weekly
Grab
E
Weekly
Grab
E,U,D
2001100 ml
400 /100 ml
Weekly
Grab
E, U, D
17 Itg/I
2/Week
Grab
E
Weekly
Grab
U,D
Weekly
Grab
E,U,D
Daily
Grab
E
*Sample locations: E - Effluent, I -,Influent, U - Upstream 300 feet above the discharge, D - Downstream 300 feet below the discharge
** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/l.
*** Total Residual Chlorine limit of 17 ug/I shall be effective on April 1, 1998.
The pH,shall not be less than 6.0 st andard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November I - March 3 1) Permit No. NCO060755
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent - Characteristics
Flow
BOD, 5 day, 20'C
Total Suspended Residue
NH3 as N
Dissolved Oxygen —
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Conductivity
Temperature
Discharge Limitations
Monthly Avg. Weekly Avg. Daily Max
0.009 NIGD
10.0 mg/l
30.0 mg1l
4.0 mg11
200/100 ml
15.0 mg/I
45.0 mg1l
400 /100 ml
17 Rg/I
Monitoring
Requirements
Measurement
Sample
*Sample
Frequency
lyp e
Location
Weekly
Instantaneous
I or E
Weekly
Grab
E
Weekly
Grab
E
Weekly
Grab
E
Weekly
Grab
E, U, D
Weekly
Grab
E, U, D
2/Week
Grab
E
Weekly
Grab
U,D
Weekly
Grab
E,U,D
Daily
Grab
E
*Sample locations: E - Effluent, I - Influent, U - Upstream 300 feet above the discharge, D - Downstream 300 feet below the discharge.
The daily average dissolved oxygen effluent concentration Aall not be less than 6.0 mg/l.
*** Total Residual Chlorine limit of 17 ug/l shall be effective on April 1, 1998.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
I
P

Part HI
Permit No. NCO060755
E. Water Quality evaluations of Lake Wylie have documented that the lake is threatened by
eutrophic conditions, particularly in the. embayments and tributary arms (see Report No. 92-04,
Water Quality Investigation of Lake Wylie). Discharges tributary to the Crowders Creek drainage
basin are. targeted for removal by connection to the Crowders Creek regional wastewater treatment
plant.
Additionally, the. Saddlewood Subdivision wastewater treatment plant discharges into an unnamed
tributary to Crowders Creek, a stream with no flow under low flow conditions. Removal of
discharges from low flow streams are recommended if a more environmentally sound alternative is
available, at an economically reasonable cost ( in accordance with 15A NCAC 2B .0206).
Therefore, an alternative analysis should be completed and sent to the following address by
January 1, 2001:
NCDEHNR/DWQ
NPDES Group
PO Box 29535
Raleigh, North Carolina 27626-0535

4+
K.r, PIVPT. OF
Staff Review and Evaluation FIFALTIt
NPDES Wastewater Pennit & NATURM, Vli.�^o,�)[JRICES
FACILITY INFORMATION
MAY 2 1 1996
Facility
Carolina Water Service,
Inc-Saddlewood Subdivision
NPDES No.
NCO060755
DIVISIOM OF ENVIISUMFINTAL MHAGEMENT
Design Flow (MGD)
0.009 MGD
M09RESVILE RMONAL OFFUE
Facility Class
STREAM CHARACTERISTICS
Stream Name
UT to Crowders Creek
Stream Class
C
Sub -basin
030837
Drainage Area (n-d2)
0.08
S7Q10 (cfs)
0.0
W7Q10 (cfs)
0.0
30Q2 (cfs)
0.0
IWC M
100
I Proposed Changes I Parameters Affected . I Basis for cTange(s) ---I
Compliance Schedule: None
Special Condition(s): None
Permits & Engineering Comments:
This facility was previously permitted with a condition to eliminate the discharge by connecting to the
Gastonia Crowders Creek facility by September 30,1996. Talking with Bruce Haas of Carolina Water
Service about this issue, no plans have been made or will be made to connect. Therefore, Pern-dts and
Engineering will recommend that this permit renewal be denied.
Prepared by: -Z�Lz 44'04
Le �L
Regional Office Evaluation and Recommendations:

Permit. Summary (Final)
NCO060755
In a phone conversation between Carl Daniel of Carolina Water Service,
Dave Goodrich and Mack Wic,(Yins of NPDES, Carolina Water Service
nt)
I
agreed to submitt a revised alternative analysis by January 1, 2001. Also as
aureed. in this discussion, Carolina Water Service will have until April 1,
1998 to meet a Total Residual Chlorine limit of 17 ug/l. This final permit
will have 5&2 and 10 & 4 limits, with a TRC limit of 17 ug/1
(summer/winter) to be effective April 1, 1998.

NCO060755
Residual Chlorine
Ammonia as NH3
(summer)
7Q1 0 (CFS)
0
7Q10 (CFS)
0
DESIGN FLOW (MGD)
0.009
DESIGN FLOW (MGD)
0.009
DESIGN FLOW (CFS)
0.01395
DESIGN FLOW (CFS)
0.014
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
UPS BACKGROUND LEVE
0
UPS BACKGROUND LEVI
0.22
IWC (%)
100.00
IWC (%)
100.00
Allowable Concentration (
17.00
Allowable Concentration
1.00
Ammonia as NI-13
(winter)
7Q1 0 (CFS)
0
Fecal Limit
200/1 00ml
DESIGN FLOW (MGD)
0.009
Ratio of 0.0 :1
DESIGN FLOW (CFS)
.0.014
STREAM STD (MG/L)
1.8
UPS BACKGROUND LEVI
0.22
IWC (%)
100.00
Allowable Concentration
1.80

To: , Dave Goodrich
From: Mack Wiggins WIA-I
Subject: Carolina Water Service, Inc.-Saddlewood Subdivision
Date: October 28, 1996
The Division received a renewal application for Carolina Water Service-Saddlewood in
February of 1991, for a discharge of 0.009 MGD of domestic wastewater, to an unnamed tributary
to Crowders Creek a zero flow stream. A finalized wasteload allocation dated 6/12/91 reflected
existing summer/winter limitations for two years until June 1993 when tertiary limits were to
apply if the, discharge had not been removed. A previous wasteload allocation was finalized
dated 3/20/90. The 3/20/90 wasteload was the first to apply the zero flow policy requesting
submittal of an engineering economic analysis by Carolina Water Service. The wasteload
finalized on 6/12/91 was the second one to, include tertiary limits. The second wasteload request
was because existing limits in the 3/20/90 wasteload didn't include the choice between ammonia
limits or ammonia tox test.
Per wasteload file in May of 1991, Technical Support recommended renewal with existing
lin-dts without tox test or ammonia choice limits along with tertiary limits to meet on 6/93 if the
discharge has not been removed. The file also stated that the facility will have to make some
improvements or relocate and we shouldn't penalize them with tighter limits during the inte ' rim.
By memo dated 12/16/91 Technical Support recommended that the tertiary limits that becomes
effective 6/93 be maintained if Saddlewood does not connect to a larger treatment facility. This
memo of 12/16/91 was in response to CWS's cover letter received 6/7/91 addressing submittal of
their first alternative analysis and requesting a change in the tertiary summer BOD lin-dts. By
same memo Technical Support did not support the requirement to increase summer BOD. The
6/7/91 letter from CWS made me realized that the permit issued from 91 to 95 was issued with
existing summer/winter limitations withtertiary limits becomming effective by 6/93 if the
discharge had not been removed.
Therefore, tertiary limits should have been required as of 6/93 from the previous wasteload
dated 6/12/91. Technical Support also found problems with the first engineering study received
June 7,1991. They recommended in the 12/91 memo that CWS review the estimated annual
operating cost given for alternative disposal methods. The same operating cost were given to all
alternatives. Administration, maintenance and power cost should differ for each alternative.
Letter of December 1991 from the Division was addressed to Carl Daniel of CWS concerning the
operating and present worth cost. The letter addressed that cost for plant modification and
connection to Crowders Creek were competitive and connection to Crowders Creek was the most
attractive alternative.
Carolina Water Service responded by letter dated 1/5/93. The letter included a submission
of a revised engineering alternative analysis. They commented on our decision to eliminate all
discharges to zero flow streams and express their commitment to modify and continue to
discharge. Total capital cost to modify the plant was $57,015 vs. 128,679 to pump to Crowders
Creek WWTP. Present worth cost was $343,815 to pump to Crowders Creek WWTP vs. 365,060 to
modify existing plant.

a
The next response from CWS was by letter dated May 6, 1994 objecting to increased sampling
frequencies and the condition in the d ' raft permit requiring connection to Crowders Creek WWTP.
The letter reference the January 93 letter which addressed the submittal of the revised analysis.
They also stated that the cost to modify was $70,000 less than the cost to connect to Crowders
Creek WWTP. The May 6,1994 letter also mentioned the Crowders Creek compliance record and
that to continue to discharge was the more economically feasible for Saddlewood. A memo was
attached to this letter from CWS's engineer Herbert Moore to Bruce Haas which addressed the
compliance history of Saddlewood's facility and the alternative to discharge.
The Division received the next letter on February 10, 1995 from CWS regarding their newly
issued permit. Copies of all correspondence was attached to the February 10, 1995 letter. In the
letter CWS referenced the January 93 letter that included revised cost figures. The February 10,
1995 letter opposed the requirement to connect and requested that Part III Condition F requiring
Saddlewood to connect to Crowders Creek WWTP be removed.
On April 28, 1995 CWS's attorney Hilliard & Jones submitted a letter on CWS's behalf
addressing cost estimates that had once again been revised for the second time. The first time
was submitted in January 1993. The correspondence stressed that continued operation is the more
environmentally sound alternative and the most reasonable. Attached to this letter also was
updated cost estimates submitted by their engineer, Moore Engineering Associates. This letter
compared the cost per customer to modify the existing facility and the cost per customer to connect
(assuming the maximum number of homes of 22 customers).
In September of 1996 a verbal inquiry was made to' Carolina Water Service to submit a
engineering economic analysis to address all alternatives to discharge including a cost analysis.
Bruce Haas of Carolina Water Service submitted the last response to the September request by
fax dated 10/01/96. The fax stated that it would be a substantial impact to customers if they
were required to connect to Crowders Creek WWTP. The fax also addressed Saddlewoods
compliance history with existing permit limitations and continued to push that discharging from
the existing facility was the most cost effective and environmentally -sound option. A copy of the
May 6,1994 memo from Herbert Moore was attached to the fax.
If we issue this pern-dt they should not contribute to any problems the Crowders Creek
WWTP may have experienced in the past or present. With a zero flow discharge point,
euthropic conditions threatening Lake Wylie, the cost of modifying the existing plant being
competitively close to the cost of connecting to Crowders Creek WWTP, I recommend that we
deny this renewal.
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SOC PRIORITY PROJECT: Yes
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Mack Wiggins
Date: March 26, 1996
NPDES STAFF REPORT AND RECOMMENDATION
County: Gaston
Permit No. NCO060755
MRO No. 96-055
PART I - GENERAL INFORMATION
No X
Facility and Address: Saddlewood Subd ' ivision WWTP,
Carolina Water Service, Inc.
Post office Box 240705
Charlotte, North Carolina 28224
2. Date of Investigation: 03-26-96
3. Report Prepared By: G. T. Chen
4. Persons Contacted and Telephone Number: Mike Davis, ORC,
[phone]
5. Directions to Site: From the junction of Highway 321 and
Robinson Road (SR 2416) approximately 0.9 mile north of the
North Carolina/South Carolina border, travel northeast on SR
2416 approximately 1.40 miles to the junction with Saddlewood
Drive. Turn left onto Saddlewood Drive, then left onto
Stockwood Drive, and finally left onto'Fair Meadows Court. At
the end of the cul-de-sac is the entrance road to the plant.
6. Discharge Point(s). List for all discharge points:
Latitude: 35* 101 4211 Longitude: 810 10' 59"
Attach a U.S.G.S. map extract and. indicate treatment facility
site and discharge point on map.
USGS Quad No.: G 14 NW USGS Quad Name: Gaston South, NC/SC
7. Site size and expansion are consistent with application?
Yes.
8. Topography (relationship to.flood plain included): Plant is
located on a small flat area near a stream; surrounding land
is moderately sloping. Plant does not appear -to be in a flood

plain.
9. Location of nearest dwelling: Approximately 600 feet
10. Receiving stream or affected surface waters: Unnamed
tributary to Crowders Creeks
a. Classification: C
b. River Basin and Subbasin No.: Catawaba and 03-08-37
C. Describe receiving stream features and pertinent
downstream uses: The receiving stream has a very small
defined channel with little flow. Downstream users are
not known.
PART II DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: 0.009 MGD
(Ultimate Design Capacity)
b. What is the current permitted capacity of the wastewater
treatment facility? 0.009 MGD
C. Actual treatment capacity of the current facility
(current design capacity)? 0.009 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: None.
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Existing
facility is a 9,000 gpd extended aeration package plant
consisting of a bar screen, aeration basin, clarifier,
aerated sludge holding tank, and tablet chlorinator with
contact chamber (aerated).
f. Please provide a description of proposed wastewater
treatment facilities: N/A.
9. Possible toxic impacts to surface waters: Chlorine is
added to the waste stream.
h. Pretreatment Program (POTWs only): N/A.
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
Permit No.: N/A.
NPDES Permit Staff Report
Version 10/92
Page 2

Residuals Contractor: N/A.
Telephone No.: N/A.
b. Residuals Stabilization: PSRP: N/A.
RFRP: N/A.
Other: N/A.
C. Landfill: N/A.
d. Other disposal/utilization scheme (specify): Sludge is
removed and transported by Liquid Wastes, Inc. to a CMUD
facility for final disposal.
3. Treatment plant classification (attach completed. rating
sheet): Class II, see attached rating sheet.
4. SIC Code(s): 4952
Wastewater Code(s):
Primary: 05 Secondary:
Main Treatment Unit Code: 06007
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 toxici . ty)
requests: N/A.
3. Important SOC, JOC or Compliance Schedule dates:. (please
indicate) N/A.
4. Alternative Analysis Evaluation: Has the facility evaluated
all of the non7discharge 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? There are no known groundwater, air
NPDES Permit Staff Report
VerBion 10/92
Page 3

quality, and/or hazardous -materials concerns,
6. Other Special Items: None.
PART IV - EVALUATION AND RECOMMENDATIONS
It . is recommended that the Permit be renewed as requested.
Signature of Report Preparer
Water Quality Re
Date
NPDES Permit Staff Report
Version 10/92
1 Supervisor
Page 4