HomeMy WebLinkAboutNC0065684_Permit Issuance_19941114State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Richard J. Durham
P. O. Box 127
Sherrills Ford, NC 28673
Dear Mr. Durham:
AT'6
loom��
[D E= F1
November 14, 1994
,,pQ4��
Subject: Permit No. NCO065684
Mid South Water Sys. -County Wood
Union County
In accordance with your application for discharge permit received 6b April 6, 1994, we
are forwarding herewith the subject state - NPDES permit. This permit is issued pursuant to
the requirements of North Carolina General Statute 143-215 .1 and the Memorandum of
Agreement between North Carolina and the US Environmental Protection agency dated
December 6, 1983.
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 II, 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 Environmental Management 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 permit, please contact Susan Robson at
telephone number 919n33-5083.
Sincerely,
Original Signed By
DaX'd?Asib 01fiRl`ard, Jr., P. E.
cc: Mr. Jim Patrick, EPA
Mooresville Regional Office
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496
An Equal Opportunity Affirmative Adion Employe, 5030 1wcyu.l. l; 'i u ie puolcanburner paper
Permit No. NCO065684
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
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,
Mid South Water Systems, Inc.
is hereby authorized to discharge wastewater from a facility located at
Country Woods East Subdivision
on Hemlock Drive
northwest of Bakers
Union County
to receiving waters designated as Goose Creek in the Yadkin -Pee Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, H, and III hereof.
This permit shall become effective December 1, 1994
This permit and the authorization to discharge shall expire at midnight on October 31, 1999
Signed this day November 14, 1994
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission
Permit No. NC0065684
SUPPLEMENT TO PERMIT COVER SHEET
Mid South Water Systems, Inc.
is hereby authorized to:
1. Continue to operate two existing 0.045 MGD wastewater treatment plants with each plant
consisting of aeration tanks, clarifiers, tablet chlorinator, chlorine contact tank, post aeration tank,
and aerated sludge holding tanks located at Country Woods East Subdivision, on Hemlock Drive,
northwest of Bakers, Union County (See Part III of this Permit), and
2. upon completion of the 0.1 MGD expansion, as specified in the Authorization to Construct issued
March 21, 1994, increase capacity to 0.190 MGD, and upon completion of the 0.480 MGD
expansion, as specified in the Authorization to Construct issued September 30, 1994, increase
capacity to 0.670 MGD, and
3. Discharge from said treatment works at the location specified on the attached map into Goose
Creek which is classified Class C waters in the Yadkin -Pee Dee River Basin.
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1- October 31) Permit No. NCO065684
During the period beginning on the effective date of the permit and lasting until expiration or until expansion above 0.090 MGD, 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
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Conductivity
'4CharaeLimitations
D
Monitoring
q Re� m uireents
Measurement
Sample
*Sam Ike
a. Weekly Avg.
Daily Max
Frequency
Type
Location
0.09 MGD
Continuous
Recording
I or E
. m
45.0 mg/l
Weekly
Composite
E
30.0 m g/ I
45.0 m g/ 1
Weekly
Composite
E
2.0 m g/I
Weekly
Composite
E
11
Weekly
Grab
E, U, D
200.0 /100 ml
400.0 /100 ml
Weekly
Grab
E,U,D
2/Week
Grab
E
Daily
Grab
E
Quarterly
Composite
E
Quarterly
Composite
E
Weekly
Grab
U, D
*Sample locations: E - Effluent, I - Influent, U - Upstream 100 fe above discharge point, D - Downstream 0.4 miles below the discharge
point.
**The daily average dissolved oxygen effluent concentration shall not a less than 5.0 mg/l.
a
The pH shall not be less than 6.0 standard units nor greater than 9.0 stand d 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 ounts.
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1- October 31) Permit No. NC0065684
During the period beginning on the effective date of the permit and lasting until expiration or until expansion above 0.090 MGD, the Permittee is
authorized to discharge from outfall(s) serial number 001. (Continued)
Effluent_ Characteristics
Temperature
Discharge Limitations
Units (specify)
Monthly Avg. Weekly Avg.
Monitoring Requirements
Measurement Sample, *Sample
Daily Max Frequency Type Locatign
Weekly Grab U,D
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permi . NCO065684
During the period beginning on the effective data of the permit and lasting until expiration or until expansion above 090 GD, the Permittee is
authorized to discharge from�tfall(s) serial number 001. Such discharges shall be limited and monitored by the p ttee 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
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Conductivity
Discharge Limitations
Monitoring
Requirements
Measurement
Sample
'_Sample
N thAva. Weekly Avg.
Daily Max
Frequency
Type
Location
0.09
Continuous
Recording
I or E
30.0 mg/I
45.0 mg/I
Weekly
Composite
E
30.0 mg/I
45.0 mg/I
Weekly
Composite
E
6.0 mg/I
Weekly
Composite
E
Weekly
Grab
E, U, D
200.0 /100 ml
400.0 /100 ml
Weekly
Grab
E,U,D
2/Week
Grab
E
Daily
Grab
E
Quarterly
Composite
E
Quarterly
Composite
E
Weekly
Grab
U, D
*Sample locations: E - Effluent, I - Influent, U - Upstream 100 feet above disc\andsh
- Downstream 0.4 miles below the discharge
point.
**The daily average dissolved oxygen effluent concentration shall not be less t
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard umonitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A. O. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NCO065684
During the period beginnin on the effective data of the permit and lasting until expiration or until expansion above 0.090 MGD, the Permittee is
authorized to discharge from o�fall(s) serial number 001. (Continued)
Effluent Characteristics
Temperature
Weekly Avg. Daily Max
Monitoring Requirements
Measurement
Frequency
Weekly
C)� W C-z J5
m i 'Sample
Tyne motion
Grab U,D
A. O. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NCO065684
During the period beginning upon a ansion above 0.090 MGD and lasting until expiration or until expansion to 0.670 MGD, the Permittee is
authorized to discharge from outfall(s) erial 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 Colif)rm (geometric mean)
Total Resicual Chlorine
Temperature
Total Nitrogen (1102 + NO3 + TKN)
Total Phosphorus
Conductivity
Aonthly A
Weekly Avq
0.190 MGD
10�
/
30.0_mg/1
2.0 mg/l
CC
J
23.0 µg/1
Daily Max
15.0 mg/1
45.0 mg/I
`17 / 400.0 /100 ml
Monitoring
Requirements
Measurement
Sample
'Sample
Frequency
Tvpe
Location
Continuous
Recording
I or E
Weekly
Composite
E
Weekly
Composite
E
Weekly
Composite
E
Weekly
Grab
E, U. D
Weekly
Grab
E,U,D
2/Week
Grab
E
Daily
Grab
E
Quarterly
Composite
E
Quarterly
Composite
E
Weekly
Grab
U, D
*Sample locations: E - Effluent, I - Influent, U - Upstream 100 feet above disch\5..gA.
- Downstream 0.4 miles below the discharge
point.
**'rhe daily average dissolved oxygen effluent concentration shall not be less tThe pH shall not be less than6.0 standard units nor greater than 9.0 standard une monitored weekly at the effluent by grab
sample.
There shall he no discharge of floating solids or visible foam in other than trace amounts.
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NC0065684
Dining the period beginning upon
authorized to discharge from outfa
Effluent Characteristics
Temperature
ttil expansion to 0.670 MGD, the Permittee is
Monitoring RegLlirements
Measurement Sample 'Sample
Frequency Type Location
Weekly Grab U,D
A. O. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NCO065684
During the period begin ' g upon expansion above 0.090 MGD and lasting until expiration or until expansion to 0.670 MGD, the Perntittee is
authorized to discharge fro outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations I Monitoring Requirements
Measurement Sample *Sample
v WgQk y_As Daily Max Frequency
_vgType Location
Flow
0.19MGD
BOD, 5 day, 200C
18.0m /
Total Suspended Residue
30.0mg
NH3asN
4.0
Dissolved Oxygen
Fecal Coliform (geometric mean)
200.0 /100 ml
Total Residual Chlorine
23.0 µg/I
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Conductivity
*Sample locations: E - Effluent, I - Influent, U - Upstream 100
point.
**The daily average dissolved oxygen effluent concentration shall
Tt.e pH shall not be less than 6.0 standard units nor greater than 9.0
sample.
Continuous
Recording
I or E
27.0 mg/l Weekly
Composite
E
45.0 mg/I Weekly
Composite
E
Weekly
Composite
E
Weekly
Grab
E, U, D
400.0 /100 ml Weekly
Grab
E,U,D
2/Week
Grab
E
Daily
Grab
E
Quarterly
Composite
E
Quarterly
Composite
E
Weekly
Grab
U, D
above discharge point, D - Downstream 0.4 miles below the discharge
less than 5.0 mg/l.
units and shall be monitored weekly at the effluent by grab
There shall be no discharge of floating solids or visible foam in other than tra)T. amounts.
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NC0065684
During the period beginning upon expa ion above 0.090 MGD and lasting until expiration or until expansion to 0.670 MGD, the Permittee is
authorized to discharge from outfall(s) se 'al number 001. (Continued)
Effluent Characteristics Di h Limit tl n Monitoring Requirements
Unit s e if Measurement m I 'Sample
Monthly Avg, Weekly Avg, Daily Max Frequency Tv a Location
Temperature Weekly Grab U,D
A. O. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April I - October 31) Permit No. NCO065684
During the period beginning upon expansion to 0.670 MGD 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 Suspeided Residue
NH3 as N
Dissolved Oxygen
Fecal Coliform (geometric mean)
Total Residual Chlorine
Discharge Limitations
Monitoring
Requirements
Measurement
Sample_
'Sample
�nthI Weekly Avg,
Daily Max
Frequency
Type
Location
0.670 MGD
Continuous
Recording
I or E
mg/I
15.0 mg/I
3/Week
Composite
E
30.0 mg/I
45.0 mg/I
3/Week
Composite
E
2.0 mg/I ✓
3/Week
Composite
E
3/Week
Grab
E,U,D
200.0 /100 ml
400.0 /100 ml
3/Week ✓
Grab
E,U,D
19.0 49/T1
3/Week
Grab
E
Temperature
3/Week •-
Grab
E,U,D
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Composite
E
Total Phosphorus
n6endaefiait
Quarterly
+T+7Eei<
Composite
Graf]
E
tJ � �_
*Sample locations: E - Effluent, I - Influent, U - Upstream 100 feet above discharge point, D - Downstream 0.4 miles below the discharge
Lpoint. Upstream and downstream monitoring is to be conducted three times per week during June, July, August, and September, and once per
week during the rest of the year.
**')fie daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/I.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
M
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NCO065684
During the period beginning upon expansion to 0.670 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s)
ser,al 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
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Conductivity
Discharge Limitations
Monitoring
Requirements
Measurement
Sample
*Sample
Monthly Avg, Weekly Avg.
Daily Max
Freguencv
Tvge
Location
0.670 MGD
Continuous
Recording
I or E
18.0 mg/I
27.0 mg/1
3/Week
Composite
E
30.0 mg/I
45.0 mg/1
3/Week
Composite
E
4.0 mg/I
3/Week
Composite
E.
3/Week
Grab
E, U, D
200. ml
400.0 /100 ml
3/Week
Grab
E,U,D
19 O�rg
�•
3/Week
Grab
E
3/Week
Grab
E. U, D
Quarterly
Composite
E
Quarterly
Composite
E
3/Week
Grab
U, D
*Sample locations: E - Effluent, I - Influent, U - Upstream 100 feet above discharge point, D - Downstream 0.4 miles below the discharge
point. Upstream and downstream monitoring is to be conducted three times per week during June, July, August, and September, and once per
week during the rest of the year.
**The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Part III
Permit No. NCO065684
E. If this facility is built in phases, plans and specif ations for the next phase shall be submitted
when the flow to the existing units reaches 80% of a design capacity of the facilities on line. At
no time may the flow tributary to the facility exce,,6d the design capacity of the existing units.
F. In the event that the wastewater t treaent facility is in substantial non-compliance for three
d'
consecutive months with the effluent charge conditions of this NPDES Permit, the permittee
shall, upon demand of the Division, co duct a study evaluating all available wastewater disposal
alternatives and the permittee shall, ithin sixty days of notification by the Division, submit a
report in such form and detail as req ed by the Division evaluating these alternatives _with respect
to environmental soundness and co effectiveness.
NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO065684
PERMITTEE NAME: Mid South Water Systems, Inc.
FACILITY NAME: Country Woods East Subdivision
Facility Status: Existing
Permit Status: Renewal
Major
Minor �1
Pipe No.: 001
Design Capacity a' .190 MGD o. (,7o
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments: V\k, 0 - 09
RECEIVING STREAM: Goose Creek
Class: C
Sub -Basin; 03-07-12
Reference USGS Quad: G16NE
(please attach)
County: Union
Regional Office: Mooresville Regional Office
Previous Exp. Date: 10/31/94 Treatment Plant Class: 11
Classification changes within three miles:
No change within three miles.
Requested
Prepared b
Reviewed
-$o.Dw
W alo1
Date:
Date:
s�45�r
7/19194
Modeler Date Rec. #
I''IrNd✓
Drainage Area (mil) 9, % Avg. Streamflow (cfs): %, $
7Q10 (cfs) Q, / Winter 7Q10 (cfs) e , 4 30Q2 (cfs) ,� , 7
Toxicity Limits: IWC 1`L % Acute/Chronic
Instream Monitoring:
,.
Parameters Do, lOn�/ .L
Upstream . lhO uI a(fluent
Downstream Location 0,I ki `t��✓ep-,�i, Av"I
Monthly Average
Monthly Average
Monthly Average
Summer
Winter
Summer
Winter
Summer
Wmmr
Wasreflow (MGD):
0.090
0.090
0.190
0.190
0.670
0.670
BOD5 (mg/1):
30
30
10
18
10
18
NH3N (mg/1):
2
6
2
4
2
4
DO (mg/1):
5
5
5
5
5
5
TSS (mgll):
30
30
30
30
30
30
Fecal Col. (/loo ml):
200
200
200
200
200
200
pH (SU):
6-9
6-9
6-9
6-9
6-9
Residual Chlorine W):
monitor
monitor
23
A k
19
19
Oil & Grease (mg/l):
N/A
TP (mg/1):
monitor
monitor
monitor
monitor
monitor
monitor
TN (mg/1):
monitor
monitor
monitor
monitor
monitor
monitor
Comments:
Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Request #
MSWS Country woods East Subdivision
NCO065684
Domestic - 100%
Existing
Renewal
Goo
pecies in area
030 Pnt✓any��ul
7Ety-�, N.C. DEPT. OF
NATURALTENT, HEAt'I%
RESOURCES
SEP 1 1994
DIVISION OF ENVIRONMENTAL MANAGEMENT
MOORESVILLE REGIONAL OFFICE
Union
Stream Characteristic:
Mooresville-X4k.
USGS #
Susan Robson
Date:
7/20/94
Drainage Area (mi2):
9.47
G16NE
Summer 7Q1 0 (cfs):
0.1
Winter 7Q10 (cfs):
0.4
Average Flow (cfs):
9.5
30Q2 (cfs):
0.7
IWC (%):
91%
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Facility has requested an A to C for an 0.480 mgd expansion which will give them a total
design capacity of 0.670 MGD. I have included limits for 0.09 mgd, 0.190 mgd (presently being
constructed) and 0.67 mgd. Instream monitoring shows no DO violations for last 2 years. Facility
has violated NH3N limit at least once in last year. Highest monthly BOD5 average is 20.7 mg/l.
Updated NH3N limits and added chlorine limit to new flows. Chlorine limit for 0.190 mgd due to
endangered species ( Carolina heelsplitter as of 6/30/93) in area.
Special Schedule Requirements and additional comments from Reviewers:
Recommended by:
Reviewed by
Instream Assessment:
Regional Supervisor:
Permits & Engineerin
N
RETURN TO TECHNICAL SUPPORT BY: Sp e 8 1994
Existing_ Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. 000 m*
pH (SU):
Residual Chlorine (µgp):
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/l):
Fecal Col. Q100 ml):
pH (SU):
Residual Chlorine (µg/1)
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
CK��\]� �L\Is•MyC�3 \11'7:w: a\vIcYYAMI
Monthly Average
Summer
Winter
0.090
0.090
30
30
1.5
5.9
5
5
30
30
200
200
6-9
6-9
Monthly Average
Summer
Winter
0.190
0.190
10
18
1.3
3.8
5
5
30
30
200
200
6-9
6-9
monitor monitor monitor monitor
N/A
monitor monitor monitor monitor
moniitor moniitor monitor monitor
,4)
Monthly
Average
Summer
Winter
0.090
0.090
30
30
2
6
5
5
30
30
200
200
6-9
6-9
monitor
N/A
monitor
monitor
monitor
monitor
monitor
Monthly Average
Summer
Winter
0.670
0.670
10
18
1.1
2.4
5
5
30
30
200
200
6-9
6-9
18
18
monitor monitor
monitor monitor
BJ c�
Monthly Average Monthly Average
Summer Winter Summer Winter
0.190
0.190
0.670
0.670
10
18
10
18
2
4
2
4
5
5
5
5
30
30
30
30
200
200
200
200
6-9
6-9
6-9
19*
19*
19
19
monitor monitor monitor monitor'
monitor monitor monitor moniitor
✓* Region please comment on limit to whether or not construction is considered
significant (has dechlorination system been installed?)
LIMIT CHANGES DUE TO:
Chlorine expansions should receive a limit . 19 ug/1 is the allowable to protect against
instream toxicity. Also endangered species requires Chlorine limit.
NH3N current criteria is 1.0(s) and 1.8(w) limit can not be more stringent than 2(s) and
4(w) for nontrout waters.
_X_ Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
I
No parameters are water quality limited, but this discharge may affect future allocations.
yes.
3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: — 100 ft upstream from discharge point
Downstream Location: 0.4 miles Downstream from discharge point
Parameters: D.O., Temp, Cond, Fecal coli
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
H no, why not?
Wasteload sent to EPA? (Major) _N (Y or N)
(If yes, then attach updated evaluation of facility, including toxics spreadsheet, modeling analysis
if modeled at renewal, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.
:E)4L kL, 1
Qw=
O, i rrcD
AV)DOs-
30 / 30
.N*3N=
I s)5.9
D-o, =
sfs
TSS =
30/30
PW/aov
014 SuuV WCk�j' Systems ,Znc. �Ylil1l�
1 J I a�9q
GOuntkU Wvods eaSl SuIOd!ulSIOr
Nc,00 (OS (a8A a3 07 /Z
1000 Domosl c. Qw _ p. 00 m(,D
Db = 9,47 7010: 0.1 W7(�W=0.4 3002-=U•l OW= 9,,5
0. 2- m6D 0, 7 X)76L)
lU//&
/0/ /8
1,313.9
515
5�5
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MSWS Country Woods Fast Subdivisic
Goose Creek NC0065684
Residual Chlorine
7O10(CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (UG/L)
IWC (%)
Allowable Concentration (ug/1)
Fecal Limb
Ratio of 0.1 :1
Ammonia as NH3
(summer)
0.1
7010 (CFS)
0.1
0.67 0.11
DESIGN FLOW (MGD)
0.67
1.0385
DESIGN FLOW (CFS)
1.0385
17.0
STREAM STD (MG/L)
1.0
0
UPS BACKGROUND LEVEL (MG/L)
0.22
91.2%
IWC(%)
91.2%
19 7-3
Allowable Concentration (mg/1)
1
Ammonia as NH3
(winter)
7010 (CFS)
0.4
2001100ml DESIGN FLOW (MGD)
0.67
DESIGN FLOW (CFS)
1.0385
STREAM STD (MG/L)
1.8
UPS BACKGROUND LEVEL (MG/L)
0.22
IWC (%)
72.2 %
Allowable Concentration (mg/1)
2
atia(94
LanbDesiffll
Engineering Services, Inc.
July 28, 1994
Mr. Jay Lucas
Environmental Engineer
N. C. Department of Environment,
Health and Natural Resources
Post Office Box 29535.
Raleigh, North CaroNna 27626-0535
Re: Treatment Plant Expansion - Country Woods Subdivision
NPDES NCO065684
Union County
LDESI Project No. 83113
Dear Jay:
On behalf of Carlton Tyson and myself, please accept our sincere thanks for the time you
and Susan spent with us on Monday. We are awaiting your review comments and will
respond quickly to allow your review to proceed.
In response to our discussion regarding process design for the proposed plant expansion,
I am enclosing a copy of the information provided to us by AERO-MOD for this project.
This information indicates the proposed plant would produce an effluent BOD5 of 4.5 mg/l,
and suspended solids of 5 mgll. The AERO-MOD video I have enclosed, we found to be
helpful in visualizing some of the details related to plant construction and operation of the
clarifier.
Regarding the surge tank design, we discussed this question with Mr. John McNellis with
AERO-MOD. He indicated that the operational basis for their surge design is such that
they do not recommend the addition of air to this tank. We will obtain a letter from him with
a detailed explanation of the surge operation.
By copy of this letter, we are requesting a letter from MID -South asking for the permit flow
reduction from 700,000 gpd to 670,000 gpd to match the ATC.
1700 East Boulevard
Charlotte, NC 28203
704.376.7777
Jay Lucas
July 28, 1994
Page Two
Thank you again for your cooperation and response.
other information you need.
Very 1 r
i
Dale rt, . E.
DCS/nk
Enclosures
cc: Carroll Weber
Carlton Tyson
Please feel free to call if you identify
11"Y
SOC Prioritv Project: Yes No X
If Yes, SOC#:
To: Permits and Engineering Unit
Water Quality Section
Attention: Jay Lucas
l
Date: July 14, 1994 ;
AUTHORIZATION TO CONS, UCT
NPDES PERMIT t'
REPORT AND RECOMMENDATIONS'
Countv: Union p 17
Permit No. 0 6 5 6 8 4 A C D
PART I - GENERAL INFORMATION �f
1. Facility and Address: Country Woods WWV�
Mid South Water SAstems
Post Office Box 127
Sherrills Ford. NC, 28673
2. Date of On -Site Investigation (if conducted)! N/A
3. Report Prepared by: Kim H. Colson, Environmental Engineer I
4. Persons Contacted and Telephone Number: N/A
5. Verified Discharge Point(s), List for all discharge points:
Latitude: 350 07' 22" Longitude: 800 3712"
Attach a USGS map extract and indicate treatment facilitY
site and discharge point on map. Ensure discharge point(s) •
correspond to NPDES permitted discharge points.
U.S.G.S. Quad No.: G16SE U.S.G.S. Quad Name: Bakers, NC
6. Site size and expansion area consistent with application:
Yes.
7. Topography (relationship to flood plain included): Flat
slopes: the WWTP is not located within the 100 year flood
plain.
8. Location of nearest dwelling: The nearest dwelling is
located approximately 400 feet from the proposed expansion:
however, there are other presently vacant building lots
adjacent to the WWTP site.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Existing treatment facility
a. Current permitted capacity of the facility: 0.700 MGD
i
Page Two
b. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
(2) years: An Authorization to Construct was issued on
March 21. 1994 for the construction of a 0.100 MGD
expansion of the existing 0.090 MGD facility.
co Actual treatment capacity of the current faci_l its-
(design volume): 0.090 MGD (0.100 MGD expansion is
currently under construction)
d. Please provide a description of existing or
substantially constructed wastewater treatment
facilities: The existing WWT facility is two parallel
package type WWTPs. The package type WWTPs consist of
an aeration basin with diffused aeration, clarifier,
tablet type chlorination, post aeration, manual bar
screen, aerated sludge holding tank, and continuous
flow measurement. The facilities under construction
consist of two (2) 0.050 MGD package type WWTPs,
tertiary filters, influent flow equalization,
dechlorination, post aeration, and continuous flow
measurement. The package type WWTPs will consist- of an
aeration basin with diffused air, clarifier, aerated
sludge holding tank, and chlorine disinfection.
2. Please provide a description of proposed wastewater
treatment facilities: The proposed WWT facility will
consist of ten (10) 48,000 gpd Aero-Mod units, chlorination,
dechlorination, tertiary filters, and standby power. The
Aero-Mod units consist of an aeration basin with diffused
air, clarifier module, surge basin. and aerated sludge
holding tank,
3. Residuals handling and utilization/disposal scheme:
a. If. residuals are being land applied, please specify DEM
permit no.: N/A
Residual Contractor: N/A
Telephone No.: N/A
b. Residuals stabilization: PSRP PFRP Other
c . Landfill: N/A
d. Other disposal/utilization scheme (Specify): Sludge
will be pumped by Liquid Waste, Inc. and taken to a
CMUD WWTP.
4. Treatment plant classification (attach completed rating
sheet): Class III
5. SIC Code(s): 4952
Wastewater Code(s)
Primary: 05 Secondary:
Page Three
Main Treatment Unit Code: 06107
6. Important SOC, .10C or Compliance Schedule dates: NIA
PART III - EVALUATION AND RECOMMENDATIONS
The permittee, !did South Water Systems. has applied for an
Authorization to Construct for the construction of a 0.480 MGD
expansion of the existing WWTP. The existing WWTP is a 0.090 MGD
facility that is being expanded to .190 MGD. With the addition
of the 0.480 expansion, the total WWTP capacity will be 0.670
MGD. The current NPDES Permit allows for expansion up to 0.700
MGD.
The plans and specifications have been reviewed and the
following comments are offered:
1. The applicant should verify that the back-up generator is
sufficient to run all major treatment components;
2• The plans and specifications indicate gaseous chlorine will
be used: however, the calculations indicate tablet type
chlorine will be used - the applicant should clarify the
type of chlorination to be used;
It is recommended that the Authorization to Construct. be
issued once the above mentioned concerns are addressed.
Of
Signature of report preparer
D 1&,,
Water Quality Rqqional Supervisor
S
Date