NC0071528_Wasteload Allocation_19950405

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:
Lake Norman Woods Subdivision
NCO071528
100 % Domestic
Existing
Renewal
Catawba River
WS IV and B
03-08-32
Catawba
Mooresville
Robson
12/2/94
E15NW
Existing WLA checked: x
Staff Report: na
Topo checked:
USGS Flows confirmed:
WC Spreadsheet:
Stream Classification:
Nutrient Sensitivity:
Instream Data: nr
Request # B8122
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (ds):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (afs):
IWC (%):
Lake
80 Minimum Release
1987: proposed w/ Secondary limits recommended; "Discharge should be piped away from shoreline to assure adequate mixing with
mainstem river flow. MRO has recommended quarterly monitoring for N & P. Technical Services concurs."
1992: Permit revoked for failure to submit and pay for renewal. Upon reissuance, facility received BPJ lake limits, (i.e.15 / 4) due to
DMR•s WS classification, ability to meet, and consistency w/ other lake dischargers. Nutrient monitoring was also recommended.
DMR's indicate facility only discharging for last year or so... wasteflows well below Permitted; reference on Streamline form.
GODS and ammonia violation January, 1994.
Residual chlorine levels acceptable over last year of data.
Fecal coliform violation July, 1994.
Facility generally meeting Permit limits.
Staff Rem
Existing„ Limits;
Monthly Averages
Wasteflow (MGD):
0.025
BODE (mg/l):
15
NH3N (mg/l):
4
DO (mg/i):
6
TSS (mgA):
30
Fecal Col. (A 00 ml):
200
pH (SU):
6-9
Residual Chlorine (pg/1):
monitor
Oil & Grease (mg/l):
-
TP (mg/l):
monitor
TN (mgll):
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:

SOC Priori y Project: Yes_ No X
If Yes, SOC No.:
To: Permits and Engineering Unit
Water Quality Section
Attention: Susan Robson
Date: February 10, 1995
NPDES STAFF REPORT AND RECOMMENDATION
County: Catawba
Permit No. NC0071528
PART I - GENERAL INFORMATION
1. Facility and Address: Lake Norman Woods WWTP
Lake Norman Woods Homeowners Assoc.
Post Office Box 321
Sherrills Ford, North Carolina 28673
2. Date of Investigation: February 10, 1994
3. Report Prepared by: Kim H. Colson, Environmental Engineer I
4. Persons Contacted and Telephone Number: Barry Sigmon, (704)
878-9156.
5. Directions to Site: From the intersection of SR 1835 (Molly's
Backbone Road) and SR 1885 (Monbo Road), travel east on SR
1885 0.8 mile and turn right on Palomino Lane. Travel to the
end of Palomino Lane and turn left on Marina Lane. Travel 0.1
mile. The entrance to the WWTP is located on the left side of
Marina Lane.
6. Discharge Point(s), List for all discharge points:
Latitude: 35' 39' 5 7 " Longitude: 80' 58' 10"
Attach a USGS map extract and indicate treatment facility site
and discharge point on map.
U.S.G.S. Quad No.: E15NW U.S.G.S. Quad Name: Troutman, NC
7. Site size and expansion area consistent with application?
Yes.
8. Topography (relationship to flood plain included): Moderate
sloping; the WWTP is not located in the 100 year flood plain.
9. Location of nearest dwelling: Approximately 300 feet.
10. Receiving stream or affected surface waters: Lake Norman
a. Classification: WS IV CA & B
b. River Basin and Subbasin No.: Catawba 030832

Page Two
C. Describe receiving stream features and pertinent
downstream uses: The receiving stream is a large lake
that is used for water supply, primary recreation, and
general "C" classification purposes.
PART II — DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. -a. Volume of wastewater to be permitted: 0.025 MGD
(ultimate design capacity)
b. Current permitted capacity of the wastewater treatment
facility: 0.025 MGD
C. Actual treatment capacity of the current facility
(current design capacity): 0.025 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: N/A
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: The
existing WWT facility consists of an influent flow
equalization basin, bar screen, aeration basin (diffused
air), clarifier, chlorine disinfection (tablet), post
aeration, and standby power.
f. Please provide a description of proposed wastewater
treatment facilities: N/A
g. Possible toxic impacts to surface waters: N/A
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
Residuals Contractor: N/A
Telephone No.: N/A
b. Residuals stabilization: PSRP PFRP Other
c. Landfill: N/A
d. Other disposal/utilization scheme (Specify): Sludge is
pumped by Liquid Waste, Inc. and taken to a CMUD WWTP.
3. Treatment plant classification (attach completed rating
sheet): Class II
4. SIC Code(s): 4952

Page Three
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? N/A
2. Special monitoring or limitations (including toxicity)
requests: The facility has requested that nutrient monitoring
be dropped. It is recommended that nutrient monitoring be
dropped due to the size of the WWTP. Nutrient monitoring
should be re -instated upon expansion at or above 0.050 MGD.
3. Important SOC, JOC or Compliance Schedule dates (Please
indicate): N/A
4. Alternative Analysis Evaluation:
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 air quality,
groundwater, or hazardous materials concerns.
6. Other Special Items: N/A
PART IV - EVALUATION AND RECOMMENDATIONS
The permittee, Lake Norman Woods Homeowners Assoc., has
applied for permit renewal. The WWTP serves the Lake Norman Woods
Subdivision.
It is recommended that the permit be renewed as requested.
Signature of report preparer
7
, ) ,
Water Quality a ional Supervisor
Date