NC0080691_Wasteload Allocation_19950405

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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:
47'woamaR6
l jBroawarTd Development
NC0080691
100 % Domestic
Existing— R ooser>
Renewal
Catawba River
WSA and B
03-08-32 I✓
Iredell
Mooresville
Robson
1212/94
E15NW
Existing WLA checked: x
Staff Report: na
Topo checked:
USGS Flows confirmed:
IWC Spreadsheet:
Stream Classification:
Nutrient Sensitivity:
Instream Data: nr
Request # B8127
[SR 2728 WWTP]
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
> 1,462
60 Minimum Release
1991: proposed facility w/ BPJ limits recommended, (i.e. 15 / 4). Staff Report indicates that proposal included tertiary filters.
Refer Performance Group [NC0078603] w/ Advanced Tertiary limits based on ability of facility to meet them; I will note
this on the Streamline form and suggest the same limits be applied, (same justification) if facility not already on-line.
DMR,s
no data
Existina Limits:
Monthly Averages
Wasteflow (MGD):
0.090
BOD5 (mgA):
15
NH3N (mg/I):
4
DO (mg/I):
6
TSS (mgA):
30
Fecal Col. (/100 ml):
200
pH (SU):
6-9
Residual Chlorine (µgA):
28
Oil & Grease (mgA):
-
TP (mgA):
monitor
TN (mgA):
monitor
Temperature (° C):
monitor
There shall be no discharge of floating
solids or visible foam in other than trace amounts.
Upstream Location: not required
Downstream Location: not required
Parameters:

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To: Permits and Engineering Unit
Water Quality Section
Attention: Susan Robson
SOC Priority Project: No
Date: January 31, 1995
NPDES STAFF REPORT AND RECOMMENDATIONS
County: .J6 - l
NPDES Permit No.: NC0080691
MRO No.: 94-254
PART I - GENERAL INFORMATION' Kp
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1. Facility and Address: Windmere Development
°/o Mid South Water Systems, Inc.
P. 0. Box 127
Sherrills Ford, N.C. 28673
2. Date of Investigation: January 31, 1995
3. Report Prepared By: Michael L. Parker, Environ. Engr. II
4. Person Contacted and Telephone Number: Tony Parker, Mid -
South, [phone].
5. Directions to Site: From the junction of SR 1332 and SR 1328
near the community of East Monbo, travel west on SR 1328
approximately 0.3 mile and turn left onto SR 2728 (Windemere
Rd.). Travel approx. 200 yards on SR 2728 and turn left onto
Heronwood Rd. (no SR number). The WWTP site is located on the
left side of Heronwood Rd. after traveling y ; mile.
6. Discharge Point(s), List for all discharge Points: -
Latitude: 35" 40' 04"
Longitude: 80° 57' 5511
Attach a USGS Map Extract and indicate treatment plant site
and dis^harge point on map.
USG, Quad No.: E 15 NTT
7 SiZe (land available for expansion and upgrading): Little o_-
no area exists for expansion of the WWTP, if necessary:
8. Topography (relationship to flood plain included): Hilly, 3-
12% slopes. The WWTP site is located above any nearby flood
plain.

Page Two
9. Location of Nearest Dwelling: No dwellings currently exist
within 500+ feet of the WWTP site.
10. Receiving Stream or Affected Surface Waters: Catawba River
(Lake Norman)
a. Classification: WS-IV and B
b. River Basin and Subbasin No.: Catawba 03-08-32
C. Describe receiving stream features and pertinent
downstream uses: The lake is used for a variety of
recreational activities, as specified by its assigned WS-
III, B classification. (ie..swimming, wading, boating),
and as a water supply; although the nearest water supply
intake is several miles downstream. There are two
permitted WWTP outfalls located approx. 1.5 miles above
this proposed facility (NC0071528 and. NC0078603-
proposed).
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. V^lume of Wastewater: 0.090 MGD (Design Capacity)
b. Wh--t is the current permitt=d rapacity 0.090 MGD
C. Actual treatment capacity of current facility (current
design capacity): 0.090 MGD
d. Date(s) and construction activities allowed by previous
ATCs issued in the previous two years: ATC for WWTP was
issued 12-31-92.
e. Description of existing or substantially constructed WVT
facilities: a bar screen followed by a flow equalization
tank, dual aeration tanks, dual clarifiers, a tertiary
sand filter, tablet chlorine disinfection (dual units),
an aerated sludge holding tank, dechlorination, a flow
measuring device with totalizer, post aeration, and a
stand-by power generator.
f. Description of proposed WWT facilities: N/A
g. Possible toxic imparts to surface waters: Chlorine is
added to the waste stream.
h. Pretreatment Program (POTWs only): Not Needed.
2. Residual handling and utilization/disposal scheme: Residuals
will be removed as necessary by Roberts Septic Tank Service
and taken to the City of Newton for disposal.
3. Treatment Plant Classification: Less than 5 points; no rating
(include rating sheet). Class III
4. SIC Code(s): 4952
Wastewater Code(--): 05, 06 MTU Code(s): 06101

Page Three
PART III - OTHER -PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grants
Funds (municipals only)? No
2. Special monitoring requests: No additional monitoring
recommended.
3. Additional effluent limits requests: None at this time.
4. Air Quality and/or Groundwater concerns or hazardous waste
utilized at this facility that may impact water duality, air
duality or groundwater? No AQ or GW concerns nor are
hazardous materials utilized at this facility.
PART IV - EVALUATION AND RECOMMENDATIONS
The Windemere development currently consists of a mixture of
condomi nJ..u:-'s and, Single family units located on the s1-Aores of Lake
Norman. T1-%_c rresent method of wastewater disposal is '-`y ? O'c' ti^
tanY, /,,i j-ri fi{.�i-ion f i P1 ra yTl�i f.l-, i �f' canna y ana -annnt ar�rrp,-, an jr
.a_. i ss- s a t t a..y _ _ _. is _ t _ y
-Rd-l1 tional flow. An ex ansicn of i indeme_' 'e iC ?-Inderway and r}rr.c
additional wastewater is being generated, all wastewater from the
development will be diverted to the extended aeration WWTP.
The WWTP is not being operated at the present time although
all of the treatment facilities are on -site and appear to be
functional, if needed.
Pending receipt and approval of the WLA and concurrence by the
Division of Environmental Health, it is recommended that the NPDES
Permit be reissued. The reissued Permit should be titled: Windem--9-.e
Development.
r
Signature of Report Preparer Date
�A
Water Qualitj7Regional Supervisor D to
p:\dsr\dsr95\windmere.sr