NC0065412_Wasteload Allocation_19910327

NPDES DOCUMENT SCANNIN` COVER SHEET
NC0065412
Pleasant Ridge WWTP
NPDES Permit:
Document Type:
Permit Issuance
('
�`
Wasteload Allocatioir\
- .....: ��..,.n.....:. „ ,„
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
March 27, 1991
Tizits document is printed on reuse paper - ignore any
content on the rezrerse amide

NPDES WAS IE LOAD ALLOCATION
PERMIT NO.: NC0065412
PERMIFIEE NAME: Mr. Fred D. Curl / Ponderosa Mobile Home Q.
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.:
001
Design Capacity: 0.0235 MGD
Domestic (% of Flow):
Industrial (% of Flow):
Comments:
100 %
Refer : Basinwide / Streamline WLA File
Completed By Permits & Engineering
At Front Of Subbasin
RECEIVING STREAM: Little Troublesome Creek
Class: C-NSW
Sub -Basin: 03-06-01
Reference USGS Quad: -B22SE 'C3 z n s E (please attach)
County: Rockingham
Regional Office: Winston-Salem Regional Office
Previous Exp. Date: 7/31/91 Treatment Plant Class: 1
Classification changes within three miles:
No change within three miles.
Requested by: Mack Wiggins
Prepared by:p
ff�v,�--
Reviewed by: /M
itaxi
�oDw 't7•GS (PC)
WQ
COG.U1
Date:
2/13/91
Date: 3
Date:
Modeler
Date Rec.
#
EAS
415
40
605r1
Drainage Area (mil ) {.3
Avg. Streamflow (cfs): I?
7Q10 (cfs) D• S Winter 7Q10 (cfs) 02. `/ 30Q2 (cfs)
Toxicity Limits: IWC %
Instream Monitoring:
Parameters
Acute1Chronic
2. 7
e ers 3
Upstream Location �• J�k
Downstream Location ,.gr 44"�
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
3 0 I
3 c6
NH -N (mg/1)
3
l l. 7 CA -Ts)
nu n rt-0,.
D.O. (mg/1)
—
_
TSS (mg/1)
30
3 0
F. Col. (/100 ml)
p,o o
aao
pH (SU)
6 —1
6 _ I.
04.614, 6441 it)
tdw
mewl:city-
IN (ms it)
wtox:ci a,•
wtoA;-/,,,�
T? 0,9 l t)
a.
a0
.
p
L
ED
Comments:

-1- Request No. 6057
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 ALLOCATIONS
Ponderosa MHP
NC0065412
Domestic
Existing
Renewal
Little Troublesome
C-NSW
03-06-01
Rockingham
Winston-Salem
Mack Wiggins
2/13/91
B22SE
Wasteload Allocation Summary:
REGE" ED
MAR NU1991
PERMITS b ENGINEERING
Creek
RECEIVED
N.C. Dept. NRCD
MAR 11 1991
A Winston-Salem
4. Regional Office
Stream Characteristics:
USGS #02.0934.2315 Date 1987
Drainage Area: 13.0 sq.mi.
Summer 7Q10: 0.5 cfs
Winter 7Q10: 2.4 cfs
Average Flow: 12.0 cfs
30Q2: 2.70 cfs
Resubmitted WLA based on region comments of 3/5/91.
Facility meets existing limits. Facility may have choice between
existing ammonia limits with toxicity testing or a summer limit (11.7 mg/1)
for ammonia to protect against ammonia toxicity. Facility will receive a
letter addressing chlorine toxicity.
(approach taken, correspondence with region, EPA, etc.)
WASTELOAD SENT TO EPA?(Major) N_ (Y or N)
(if yes, then attach schematic, toxics spreadsheet, copy of model, or
if not modeled, then old assumptions that were made, and description
of how fits into basinwide plan)
Recommended by:
Reviewed by
Instream Assessment:ik..,1144,
Regional Supervisor:
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY:
). Su,
IWR 05 1991
Date: ,j,'7/j�/
Date: 317(Q�
Date: 3 —/8—`//
Date: 3/21/

-2- Request No. 6057
Existing Limits
Wasteflow (MGD) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1) :
TSS (mg/1) :
Fecal Coliform (/100 ml) :
pH (SU):
Chlorine (mg/1) :
TP (mg/1) :
TN (mg/1) :
Recommended Limits
Wasteflow (MGD) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1):
TSS (mg/1) :
Fecal Coliform (/100 ml) :
pH (SU) :
Chlorine (mg/1):
TP (mg/1) :
TN (mg/1) :
CONVENTIONAL PARAMETERS
Monthly Average
Summer/Winter
.0235
30
30
1000
6-9
2
monitor
Daily Maximum
Monthly Average
Summer/Winter
.0235
30
11.7/monitor or monitor + tox. test
30
200
6-9
2
monitor
Limits Changes Due To: Parameter(s) Affected
Instream Data
Ammonia Toxicity
Chlorine
New facility information
Flow information
INSTREAM MONITORING REQUIRMENTS:
Upstream: no Location:
Donwstream: no Location:
ADDITIONAL "REVIEWER" COMMENTS:
NH3-N

NORTH CAROLINA DEPARTMENT OF ENVIRONMENT
HEALTH AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
MEMORANDUM
TO:
THROUGH:
FROM:
SUBJECT:
March 5, 1991
Betsy Johnson
Technical Support Branch
Larry Coble'
Mike Mickey '
Proposed Wasteload Allocation
Ponderosa MHP/NC0065412
Rockingham County
'`'071991
This memo is a follow-up to our conversation on 3/4/91.
The proposed wasteload allocation for the subject facility
recommends no limit for TP since the facility is less than
0.5 MGD. Please be advised that Ponderosa MHP is an
existing facility with a Total Phosphorus permit limitation
(Quarterly Average) of 2.0 mg/l. The Authorization to
Construct (issued 5/13/87) specifically calls for "one
clarifier used for Alum feed and phosphorus removal only".
WSRO recommends that the TP limit be maintained in the
new permit. The limit should be designated as a monthly
average and not a quarterly average so that the computer
system can adequately determine compliance. In addition,
please note that the wasteflow in the recommended limits is
incorrect.
If you have any questions, please give me a call.
cc: Central Files
WSRO

-1- Request No. 6057
Facility Name
NPDES No.
Type of Waste
Facility Status
Permit Status
FACT SHEET FOR WASTELOAD ALLOCATIONS
:Ponderosa MHP
:NC0065412
:Domestic
:Existing
:Renewal
Receiving Stream :Little Troublesome Creek
Stream Classification:C-NSW
Subbasin :03-06-01
County :Rockingham Stream Characteristics:
Regional Office :Winston-Salem USGS #02.0934.2315 Date 1987
Requestor :Mack Wiggins Drainage Area: 13.0 sq.mi.
Date of Request :2/13/91 Summer 7Q10: 0.5 cfs
Topo Quad :B22SE Winter 7Q10: 2.4 cfs
Average Flow: 12.0 cfs
30Q2: 2.70 cfs
Wasteload Allocation Summary:
RECEIVED
N.C. Dept. NRCD
FEB 28 1991
'• --ton-Salem
h.;jfunul Office
Facility meets existing limits. Add a summer limit for ammonia to
protect against ammonia toxicity. Facility will receive a letter
addressing chlorine toxicity. L _.._ . recu _red since
ti n MGL' (cAo,A bc. tn61i4-7 Cul6.4t. 4 CC,cokcic f:o1.pitnih . /Qrfrly },,x. ' cns d- c4 AiI419\1
(approach taken, correspondence with region, EPA, etc.) I.Mf' `{ / cLio €.
WASTELOAD SENT TO EPA?(Major) N_ (Y or N)
(if yes, then attach schematic, toxics spreadsheet, copy of model, or
if not modeled, then old assumptions that were made, and description
of how fits into basinwide plan)
Recommended by:
Reviewed by
Instream Assessment:
Regional Supervisor:
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY:
MAR 23 1991
Date: PZ/02* //i/
Date:

-2- Request No. 6057
Existing Limits
Wasteflow (MGD) :
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Coliform (/100 ml):
pH (SU) :
Chlorine (mg/1):
TP (mg/1):
TN (mg/1):
Recommended Limits
CONVENTIONAL PARAMETERS
Monthly Average
Summer/Winter
.0235
30
30
1000
6-9
2
monitor
Monthly Average
Summer/Winter
Wasteflow (MGD) : .a0� p.pa3c�
BOD5 (mg/1) : 30
NH3N (mg/1) : 11.7/monitor
DO (mg/1):
TSS (mg/1):
Fecal Coliform
pH (SU) :
Chlorine (mg/1):
TP (mg/1) :
TN (mg/1):
30
(/100 ml) : 200
6-9
monitor
Daily Maximum
Limits Changes Due To: Parameter(s) Affected
Instream Data
Ammonia Toxicity
Chlorine
New facility information
Flow information
INSTREAM MONITORING REQUIRMENTS:
Upstream: no Location:
Donwstream: no Location:
ADDITIONAL "REVIEWER" COMMENTS:
See A \izikk� \135 LD
NH3-N

State of North Carolina
Depar trinent of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
S. Thomas Rhodes, Secretary May 13, 1987
Mr. Fred Curl, Owner
700 N. English Street
Greensboro, NC 27405
SUBJECT: Permit No. NC0065412
Authorization to Construct
Ponderosa Mobile Home Park
Wastewater Treatment Facilities
Rockingham County
Dear Mr. Curl:
R. Paul Wilms
Director
A letter of request for an Authorization to Construct was received February 4,
1987,.by the Division and final plans and specifications for the subject project have
been reviewed and found to be satisfactory. Authorization is hereby granted for the
construction of a 0.0235 MGD wastewater treatment facility consisting of a bar screen,
70 gpm duplex influent surge pumps, 7500 gallon surge tank 23,500 gallon aeration
tank, 5240 gallon dual secondary clarifiers, with one clarifier used for Alum feed and
phosphorous removal only; a 4270 gallon sludge holding tank, dual 175 cfm blowers, 729
gallon chlorine contact tank equipped with tablet feed type chlorination, a recording
and totalizing flowmeter, a stand by power generator and all necessary valves, pipes
and appurtenances to serve Ponderosa Mobile Home Park located in Rockingham County.
This Authorization to Construct is issued in accordance with Part III paragraph C
of the NPDES Permit No. NC 0065412 issued August 1, 1986, and shall be subject to
revocation unless the wastewater treatment facilities are constructed in accordance
with the conditions and limitations specified in Permit No. NC 0065412.
The Permittee must employ a certified wastewater operator in accordance with Part
III paragraph D of the referenced permit.
The sludge generated from these treatment facilities must be disposed of in
accordance with G. S. 143-215.1 and in a manner approvable by the North Carolina
Division of Environmental Management.
Continued on next page. .
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 9
An Equal Opportunity Affirmative Action Employer
RECEIVED
N.G. Dept. NRCD
MAY 19 1987
:Avision cf
Environmental Management
7Wit n-SalQrn Reg. CfficEt

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State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor George T. Everett, Ph.D.
William W. Cobey, Jr., Secretary Director
February 22, 1991
Fred D. Curl
Ponderosa Mobile Home Park
707 North English Street
Greensboro, NC 27405
Subject: Chlorine Toxicity
NDPES Permit No. NC0065412
Rockingham County
Dear Mr. Curl:
Chlorine, a widely used wastewater disinfectant for the treatment of coliform organisms, often
remains instream in residual amounts that may prove to be toxic under critical low stream flow
conditions. In the last decade, EPA assessed the potential adverse effects of chlorine to the aquatic
environment and has taken steps to reduce the impacts through the development of federal criteria.
In 1986, EPA recommended that all states have a chlorine standard by their next triennial review of
water quality standards.
In revising its water quality standards in 1989, North Carolina developed an action level for
chlorine of 17 ug/1 (freshwater classes only). In addition, the fecal coliform limit was reduced from
1000 colonies/100 ml to 200 colonies/100 ml. Under a new DEM procedure, dechlorination and
chlorine limits are now recommended for all new or expanding dischargers proposing the use of
chlorine for effluent disinfection. The Division is reviewing chlorine levels from all existing
dischargers as part of their NPDES permit renewal process.
Our records indicate that chlorine from your facility's effluent discharge may be toxic to aquatic
life in the receiving stream under low flow conditions, i.e., the amount of chlorine discharged causes
an exceedance of the instream action level for chlorine (17 ug/1 for chronic effects and 28 ug/1 for
acute effects) under 7Q10 conditions (the lowest average daily flow for seven (7) consecutive days
during a ten (10) year period). Action should be taken to reduce the effluent concentration of
chlorine to an acceptable level. Based on your instream waste concentration of 6.8%, an acceptable
level of chlorine in your effluent is 28 ug l or 0.028 mg/1. If this level is not feasible, you should
consider dechlorination or alternate methods of disinfection for your facility to ensure that both
chlorine and bacterial limits are met. In addition, if your facility plans to undertake any phase of
construction, dechlorination or alternate disinfection should be included. However, please note that
an authorization to construct must be obtained from this Division prior to any alteration to your
treatment plant.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

-2-
The Division is currently reviewing its water quality regulations pertaining to chlorine. In the
future, effluent limits and/or dechlorination may be required of existing facilities with chlorine
problems. If the chlorine levels in your facility's effluent remain unchanged, a chlorine limit or
whole effluent toxicity requirement may be added to your permit limitations.
Please feel free to call Steve Mauney of the Division's Regional Office at [phone], if you
have any questions or comments regarding this issue.
Since ely,
!//�Q----
Steve W. Tedder
Water Quality Section Chief
SWT/eaj
cc: Winston-Salem Regional Office
Central Files
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

March 18,,1991
MEMO
TO:
CURL'S RENTALS, INC.
707 NORTH ENGLISH STREET
GREENSBORO, N. C. 27405
PHONE : [phone]
DATE:
SUBJECT:
/?dor
RECEIVED
N.C. t. NRCD
PIAR 19
WinstonDep-Salem
Regional Office
\\\%. LoA h�5
�o 5'R3- \(\\ \��\�� Lo Nc e,s �.�
OC
��-N \r\ I \ e v 2 \ g.
From:
\u\N\\A
North Carolina Department of Environment,
Health, and Natural Resources c9
Printed on Recycled Paper

r•
State of North Carolina
4
tvA
♦ r c
g
Department of Environment, Health, and Natural Resources
Winston-Salem Regional Office
James G. Martin, Governor Margaret Plemmons Foster
William W. Cobey, Jr., Secretary Regional Manager
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
March 7, 1991
Mr. Fred D. Curl
Ponderosa MHP
707 North English Street
Greensboro, North Carolina 27405
SUBJECT: Ponderosa MHP
NPDES Permit No. NC0065412
Rockingham County
Dear Mr. Curl:
As you are aware, our Division is currently processing the
NPDES permit renewal application for the Ponderosa MHP facility.
This letter is to advise you about a proposed change in the new
permit.
Attached you will find a preliminary wasteload allocation
form denoting the proposed change in the effluent limitations
that will be incorporated into the new permit. As proposed, the
new permit will be issued with a chronic toxicity monitoring
requirement. Please note, however, that the wasteload approval
form states that the facility has the choice between chronic
toxicity testing or the stricter NH3-N limits. If you agree to a
more strict summer NH3 -N limit (11.7 mg/1), the toxicity testing
requirement would be dropped.
Please advise our office by March 22, 1991, concerning your
preference. If you fail to comment, the draft permit will go to
Public Notice with the chronic toxicity testing requirement.
8025 North Point Boulevard, Suite 100, Winston-Salem, N.C. 27106-3203 • Telephone [phone]
An r ntA nnnnrhtnity Affirmarivr Artinn l mnln inr

Mr. Fred Curl
Page 2
March 7, 1991
Should you have any questions, please contact Mr. Mike
Mickey or me at [phone].
MSM/dh
cc:
M. Steven Mauney
Water Quality Supervisor
Betty Johnson Suav\k_e", ,
Central Files
WSRO

CC:
Permits and Engineering
Technical Support Branch
County Health Dept.
Central Files
WSRO
SOC PRIORITY PROJECT: Yes No X
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Susan Robson
Date: 950612
NPDES STAFF REPORT AND RECOMMENDATION
County Rockingham
Permit No. NC0065412
PART I - GENERAL INFORMATION
1. Facility and Address: Ponderosa Mobile Home Park
707 N. English Street
Greensboro, N.C. 27405
2. Date of Investigation: 950612
3. Report Prepared by: David Russell
4. Persons Contacted and Telephone Number: Fred D. Curl, Owner
[phone] (not contacted)
5. Directions to Site: From Reidsville go Hwy 87 south to
Williamsburg. Right on Hwy 150 to Ponderosa MHP on right
approximately 0.9 mile.
6. Discharge Points(s), List for all discharge points:
Latitude: 36° 16' 11" Longitude: 79° 36' 30"
U.S.G.S. Quad No. B21SE U.S.G.S. Quad Name Williamsburg
7. Site size and expansion area consistent with application?
X Yes No If No, explain: Approximately 40 acres at the
site.
8. Topography (relationship to flood plain included): WWTP is
located adjacent to the flood plain and is elevated to
prevent flooding.
9. Location of nearest dwelling: Mobile homes are within 300
feet of WWTP.

10. Receiving stream or affected surface waters: Little
Troublesome Creek
a.
b.
c.
Classification C NSW
River Basin and Subbasin No.: CPF-01
Describe receiving stream features and pertinent
downstream uses: Reidsville WWTP and Willow Oak Acres
MHP discharge upstream of this location. This system
discharges at junction of Little Troublesome Creek and
Haw River.
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted:
0.0235 MGD
(Ultimate Design Capacity)
b. What is the current permitted capacity of
Water Treatment facility? 0.0235 (MGD
c. Actual treatment capacity of the current
(current design capacity)? 0.0235 (MGD)
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years. NA
e. Please provide a description of existing or
substantially constructed wastewater treatment
facilities; Influent pumps, bar screen, aeration
basin, clarifiers, digestion tank, chlorinator, flow
measurement.
the Waste
facility
f. Please provide a description of proposed wastewater
treatment facilities. NA
g•
Possible toxic impacts to surface waters:
h. Pretreatment Program (POTWs only):
in development approved
should be required not needed
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
Permit No.
Residuals Contractor .
Telephone No.
NPDES Permit Staff Report
Version 10/92
Page 2

b. Residuals stabilization: PSRP _ PFRP
Other
c. Landfill:
d. Other. disposal/utilization scheme (Specify): Solids
removed by pump tank.
3. Treatment plant classification (attach completed rating
sheet). Class II rating sheet attached.
4. SIC Code(s): 6515
Primary l8 Secondary
Main Treatment Unit Code: Q 4 s 2
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only)?
NA
2. Special monitoring or limitations (including toxicity)
requests: NA
3. Important SOC, JOC or Compliance Schedule dates: (Please
indicate) NA
Date
Submission of Plans and Specifications T
Begin Construction
Complete Construction
4. Alternative Analysis Evaluation: Has the facility evaluated
all of the non -discharge options available. Please provide
regional perspective for each option evaluated.
Spray Irrigation: Unsuitable area
Connection to Regional Sewer System: None available
Subsurface: Unsuitable area
Other disposal options:
5. Other Special Items:
NPDES Permit Staff Report
Version 10/92
Page 3

PART IV - EVALUATION AND RECOMMENDATIONS
The MHP has approximately 100 spaces. The WWTP has ample
capacity for the wastewater flow generated. The system has had
exceedances of BOD, NH3 and fecal coliform during the past year.
However, January through April 1995 the facility has been in
compliance.
It is recommended that the permit be reissued.
,.,47(d4:4v2AGA( 9f� (20
S nature of report preparer
Water Quality Regior(1 Supervisor
Date
NPDES Permit Staff Report
Version 10/92
Page 4