HomeMy WebLinkAboutSW8970144_COMPLIANCE_20070905STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. SW eq�
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
WYYMMDD
Michael 1. Casley, Governor
�CF WA r�9W
U `C
September 5, 2007
Mr. James J. Bovino, President
Town & Country Developers at Wilmington, Inc.
3240-3 Burnt Mill Drive
Wilmington, NC 28403
NOTICE OF INSPECTION -NON-COMPLIANCE STATUS
The Lakes @ Johnson Farms, Phase VI
Stormwater Project No. SW8 970144
New Hanover County
Dear Mr. Bovino:
William G. Ross Jr.; Secretary
North Carolina Department of Environment and Natural Resources
Coleen It. Sullins Director
Division of Water Quality
Please find attached a copy of the completed form entitled "Stormwater Compliance Inspection
Report". The report summarizes the findings of a recent inspection of the project's stormwater
controls conducted on 8/14/2007 to determine compliance with Stormwater Permit Number
SW8 970144 issued on 3/26/1997.
The required actions that are necessary to bring this site into compliance are noted under the
Comments section of the report. Please inform this Office in writing within fifteen (15) days of
the specific actions that will be undertaken and the time frame that will be required to correct
the deficiencies. Failure to provide the requested information, when required, may initiate
enforcement action. If you have any questions please contact David Cox at the Wilmington
Regional Office, telephone number (910) 796-7318.
Sincerel
Pat C. Durrett
Environmental Specialist
PCD/encl: S:IWQSISTORMWATIINSPECT1Pats inspections1SW8971044
cc: Wilmington Regional Office
No ehCarolina
,lValyrally
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone (910) 796-7215 Customer Service
Wilmington Regional Office Internet: www.ncwaterauality.org Fax (910)350-2004 1-877-623-6748
An Equal OpporlunitylAffirmative Action Employer— 50% Recycled110% Post Consumer Paper
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P,E. Director
Division of Water Quality
October 4, 2006
Town and Country Developers
4425 Pine Holow Drive
Wilmington, NC 28412
NOTICE OF INSPECTION:
Cambridge Heights @ JohnsjNs Farms 70 Stormwater Project No. SW60206 /
New Hanover County 1%19
Dear Permittee: mt ,,L Al V/ 5
Please find attached a copy of the completed form entitled "Stormwater Compliance Inspection
Report". The report summarizes the findings of a recent inspection of the project's stormwater
controls conducted on September 26, 2006 to determine compliance with Stormwater Permit
Number SW8 960206 issued on March 25, 1996.
A summary of the findings and comments are noted under Section 4 of the report. Please
inform this Office in writing before November 4, 2006 of the specific actions that will be
undertaken and the time frame required to correct the deficiencies. Failure to provide the
requested information, when required, may initiate enforcement action. If you have any
questions please contact me at the Wilmington Regional Office, telephone number (910) 796-
7318.
Sincerely,
Gary B de&er
Environmental Technician
EBlghb: S:1WQSISTORMWATIINSPECT1960206.Oct06
CC: Cambridge Heights HOA
�a �.5 �✓�ivn/�
26 - 6 277
!�a` Carolina
tura!!y
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone (910) 796-7215 Customer Service
Wilmington Regional Office Internet: www.ncwaterquality.org Fax (910) 350-2004 1-877-623-6748
An Equai Opportunity/Affirmative Action Employer - 50% Recycled110% Past Consumer Paper
Ntflit-11 Carolina
Department of Environment and Natural Resources
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Division of Water Quality
Wilmington Regional Office
January 23, 2001
Mr. William H. Buchanan, Jr., Partner
South College Associates, LLC
228 South Front Street
Wilmington, NC 28401
Subject: COMPLIANCE INSPECTION
The Lakes at Johnson Farms
Stormwater Project No. SW8 970144
960206, and-940707
New Hanover County
Dear Mr. Buchanan:
Please find attached a copy of the completed form entitled "Stormwater Compliance Inspection Report". The
report summarizes the findings of a recent inspection of the project's stormwater controls conducted on January 19,
2001 to determine compliance with Stormwater Permit Numbers SW8 970144, 960206, and 940707 issued on
March 26, 1997, March 25, 1996, and March 22, 1996, respectively.
A summary of the findings and comments are noted under Section 4 of the report. Please inform this Office
in writing before February 23, 2001 of the specific actions that will be undertaken and the time frame required to
correct the deficiencies. Failure to provide the requested information, when required, may initiate enforcement
action. If you have any questions please contact me at the Wilmington Regional Office, telephone number (910)
395-3900.
Sincerely,
Linda Lewis
Environmental Engineer
RSS/arl: S:IWQSISI,ORMWATIINSPECn940707-2.JAN
cc: Joseph Hill, P.E.
Central Files
Wilmington Regional Office
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50'% recycled/10% post -consumer paper
r
STORMWATER COMPLIANCE INSPECTION REPORT
I . Project Name: The Lakes at Johnson )~arms
Project Number: SW8 970144, 960206, and 940707
Control Measure: 5 wet detention ponds
Water Body: Mott Creek Classification: C Sw
Directions to site, address: Wishing Well Road off Carolina Beach Road, approximately I mile north of
Monkey Junction.
2. Inspection Date: January 19, 2001
Weather Conditions: Sunny, warm
3. Compliance Issues:
a. The main issue, as has been documented in past reports, is the ]ack of a vigorous vegetated cover on
the slopes.
b. The approved plans indicate that a trash rack is to be constructed, however, all of the outlet structures
have open faces above the orifice with a grate on top. This configuration does not catch the majority
of the trash that collects in the ponds.
C. Recorded deed restrictions have not been received for Phases V or VI.
d. The Designer's Certification for Phases V and VI has not been submitted.
4. Required Actions:
a. Please repair,eroded areas, and stabilize the pond slopes with permanent vegetated cover. Planting
a temporary cover will not satisfy the requirement to provide permanent cover.
b. Please add trash racks which also cover the open face of the outlet structure.
C. Please submit a copy of the recorded deed restrictions for Phases V and VI.
d. Please submit the Designer's'Certification for Phases V and VI. `
Inspector: Linda LewisAO
Water Quality/Wilmington Regional Office/(910) 395-3900
RSS/arl: S:1WQSISTORMWATIINSPECT1940707.JAN
2
North Carolina
Department of Environment and Natural Resources
Michael F. Easley, Governor
William G. doss, .Ir., Secretary
Division of Mlater Quality
Wilmington Regional Office
January 23, 2001
Mr. James J. Bovino, President
Town and Country Developers at Wilmington. Inc.
300 `]-ice Boulevard, Whiteweld Center International
Woodcliff. NJ 07675
Subject: Ownership Transfer
The Lakes at Johnson Farms, Phase VI
Stormwater Project No. 970144
New Hanover County
Dear Mr. Bovino:
On January 12, 1999, the Division of Water Quality sent you the Operation and Maintenance plans to be
signed for the two detention ponds (#4 and #5) at the Lakes at Johnson Farms, Phase V I. You had already signed
the permit name/ownership change form (copy attached) on July 24, 1998, but the State could not complete the
transfer until those Operation and Maintenance plans were signed and returned (copies attached). To date, the
requested documents have not been provided.
Please find enclosed a copy of the inspection report compiled after a recent inspection of the facilities
was performed. Since the transfer has not been completed, the report was sent to Mr. Buchanan, but I suspect lie
will be in touch with you to address the deficiencies found during that inspection, if in .fact, you are the
responsible party.
Please sign and return the enclosed Operation and Maintenance plans to finish the transfer. If you have
any questions, please do not hesitate to call me at (910) 395-3900.
Sincerely,
Linda Lewis
Environmental Engineer
RSSlarl: S:1WQS1S"1'ORMWATILE'I'TERS1970144-2.JAN
cc: Linda Lewis
William 1-I. Buchanan, Jr.
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Ctlual opportunity Affirmative Action Employer 50%. recycled110` . post-cunsumer paper
i
PERMIT NAME/OWNERSHIP
CHANU
FORM
1 HIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION OF
ENVIRONMENTAL MANAGEMENT UNLESS ALL OF THE APPLICABLE ITEMS
LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL.
� REQUIRED iTEMS:7
1. This compi6i6d application
�2. Processing fee of $ 100.00 (Checks to be made payable to DEHNR)
-3. If an ownership change, legal documentation of the transfer of ownership (such as a contract, deedur
T articles of incorporation) f
CERTIFICATION. MUST BE COMPLETED AND SIGNED BY BOTH THE CURRENT
PERMIT HOLDER AND THE NEW APPLICANT IN THE CASE OF CHANGE OF
OWNERSHIP. FOR NAME CHANGE ONLY, COMPLETE AND SIGN THE
APPLICANT'S CERTIFICATION.'
Current Permittee's Certification:
I, William H . Buchanan, J r . , attest that this application for namelownership change has been
reviewed and is accurate and complete to the best of my knowledge. I understand that if all required parts
of this application are not completed and that if all required supporting information and attachments are not
Included, thi plicatio lcage will be re as incomplete.
7
Signature: Date: /—
Applicant's Certification:
I, James J . B o v i n o , attest that this application for a name/ownership change has been
reviewed and is accurate and complete to the best of my knowledge. I understand that if all required parts
of this application are not completed and that if all required supporting information and attachments are not
included, this7g2�g�retwumtdasincomplete.
SignatureDate; July 24, 1998
Town County eve opers at
Wilming corporated
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALL SUPPORTING INFORMATION
AND MATERIALS, SHOULD BE SENT TO THE FOLLOWING ADDRESS:
North Carolyn of Environmental Management
w ..� a uality Section
rmits and ineering Unit
P.O. Box 5
7 Raleigh, -North Carolina 27626-0535
Telephone: (919) 733-5083
Fax: (919) 733-0719
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Permit No. SGUB q_�UI ��-
(io be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete storrnwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
`notarized operation and maintenance agreement.
. PROJECT INFORMATION (please complete the following information):
,-oject Name-0 7dJr1_ C3-y E' •n S >�� 1.
Contact Person: Phone Number:
For projects with multiple basins, specify which basin this worksheet applies to: POND tt' L
Basin Bottom Elevation 'ft. (average elevation of the floor 'of the basin)
Permanent Pool Elevation , d 4 ft. (elevation of the orifice)
I emporary Pool EIevation zo. (p ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area 1'5LE300 sq. ft. (water surface area at the orifice elevation)
Drainage Area 10.14 ac. (on -site and off -site drainage to the basin)
Impervious Area d, 2Cp& - ac. (on -site and off -site drainage to the basin)
I
Permanent Pool Volume A cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume _ 2 ( 4(o 1 _ cu. ft. (volume detained above the permanent pool)
T
F�orebay Volume cu. ft.
SA/DA1 used 3.063 `Tv-- (surface area to drainage area ratio)
Diameter of Orifice 71 iri.
Design TSS Removal cjp % (85% TSS removal required, see item k below)
I ,
III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Form SWU-102 Rev 1/August 1998 Page 1 of
Applicants Initials
a. The temporary pool controls runoff from the 1 inch storm event.
b. The basin length to width ratio is greater than
c. The basin side slopes above the permanent pool are no steeper than 3:1.
d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
e. Vegetation above the permanent pool elevation is specified.
f. An emergency drain is provided to empty the basin.
g.. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
h. The temporary pool draws down in 2 to 5 days.
i. A trash rack is provided for both the overflow and orifice.
j. The forebay volume is approximately equal to 20% of the total basin volume.
k. Sediment storage is provided in the permanent pool.
1. A 30-Moot vegetative filter is provided at the outlet2 (include erosive flow calculations)
m. Recorded drainage easement for each basin including access to nearest right-of-way.
n. A site specific operation and maintenance (O&M) plan is provided.
o. A vegetation management/mowing schedule is provided in the O&M plan.
p. Semi-annual inspections are specified in the O&M plan.
q. A debris check to be performed after every storm event is specified in the O&M plan.
r. Specific clean -out benchmarks are specified in the O&M plan (elevation or depth).
s. A legally responsible party is designated in the O&M plan3 (include name and title).
t. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified to be performed prior to use as a wet detention basin.
Footnotes:
When usin-a the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
? The requirement for a vegetative filter may be waived if the wet detention basin is designed to meet 90% TSS removal.
3 The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
IIL WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, forebay, non-integrated pretreatment
systems (pretreatment other than forebays), and the vegetated filter if one is provided.
This system (check one) ❑ does Xdoes not incorporate a vegetated filter.
This system (check one) ❑ does does not incorporate non-integrated pretreatment.
Maintenance activities shall be performs as follows:
1. After every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev 1/August 1998 Paoe 2 of3
4 d: Inspect the wet detention basin system for sediment accumulation; erosion, trash accumulation, grass
cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth. Removed sediment shall be disposed of in an appropriate
manner and shall not be handled in a manner that will adversely impact water quality (Le. stockpiling near a
wet detention basin or stream, etc.)_
The original design depth is: 4-5` r
The sediment removal benchmark is: 3.5
5. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These
plants shall be encouraged to grow along the basin perimeter.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to. the maximum extent practical.
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the above
maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the
project, responsible party, or address.
Print name:
Phone:
I
ITitle:
Signature:
Date:
a Notary Public for the State of ,
County of , do hereby certify that
personally appeared before me this day of , 19 ,and acknowledge the
due execution of the forgoing infiltration system maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-102 Rev I/August 1998 Page 3 of 3
Permit No. SirU C{70 l 4
:1 (to be provided by DWO)
State of North Carolina
Department of Environment and Natural Resources y
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information)-
Project Name: 1 �1� �-3�e5 (�• �hn5o't Form �
Contact Person:
Phone Number:
For projects with multiple basins, specify which basin this worksheet applies to:
POND # 5
Basin Bottom Elevation / 3 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation ft- (elevation of the orifice)
4Temporary Pool Elevation 20, 2 ft. (elevation of the discharge structure overflow)
I
Permanent Pool Surface Area OO sq. ft. (water surface area at the orifice elevation)
I
Drainage Area 12,5 ac.. (on -site and off -site drainage to the basin)
Impervious Area S03¢ ac. (on -site and off -site drainage to the basin) '
Permanent Pool Volume O A cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume. 24-,Co&O cu. ft. (volume detained above the permanent pool)
1 orebay Volume cu. ft.
SAJDAI used 2, 117 76
.. (surface area to drainage area ratio)
Diameter of Orifice 2 in.
I
Design TSS Removal qD % (85% TSS removal required, see item k below)
. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008..
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Fdrm SW-102 Rev 1/August 1998 Paae I of 3
Applicants Initials '
a. The temporary pool controls runoff from the 1 inch storm event.
b. The basin length to width ratio is greater than 3:1.
c. The basin side slopes above the permanent pool are no steeper than 3: I .
d. A submerged and vegetated perimeter shelf at less than 6:I is provided (show detaiI).
e. Vegetation above the permanent pool elevation is specified.
f An emergency drain is provided to empty the basin.
g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
h_ The temporary pool draws down in 2 to 5 days.
i. A trash rack is provided for both the overflow and orifice.
j. The forebay volume is approximately equal to 20% of the total basin volume.
k. Sediment storage is provided in the permanent pool.
1. A 30-foot vegetative filter is provided at -the outlet' (include erosive flow calculations)
m. Recorded drainage easement for each basin including access to nearest right-of-way.
n. A site specific operation and maintenance (O&M) plan is provided.
o. A vegetation management/mowina schedule is provided in the O&M plan.
p. Semi-annual inspections are specified in the O&M plan. .
q. A debris check to be performed after every storm event is specified in the 0&M plan.
r. Specific clean -out benchmarks are specified in the 0&M plan (elevation or depth).
s. A legally responsible party is designated in the O&M plan3 (include mane and title).
t. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified to be performed prior to use as a wet detention basin.
Footnotes:
1 When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
The requirement for a vegetative filter may be waived if the wet detention basin is designed to meet 90% TSS removal.
3 The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, forebay, non-integrated pretreatment
systems (pretreatment other than forebays), and the vegetated filter if one is provided.
This system (check one) ❑ does � does not incorporate a vegetated filter.
This system (check one) ❑ does `does not incorporate non-integrated pretreatment.
Maintenance activities shall be performs as follows:
I. After every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev 1/August 1998 Page 2 of
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, grass
cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth. Removed sediment shall be disposed of in an appropriate
manner and shall not be handled in a manner that will adversely impact water quality (i.e. stockpiling near a
wet detention basin or stream, etc.).
The original design depth is: Cof
The sediment removal benchmark depth is: 4, 5
15. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These
plants shall be encouraged to grow along the basin perimeter.
�6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the above
maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the
project, responsible party, or address.
Print name:
I .
Address:
t
Fhone:
Title:
Signature:
I
Date:
a Notary Public for the State of ,
County of , do hereby certify that
personally appeared before me this day of 19 ,and acknowledge the
due execution of the forgoing infiltration system maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-102 Rev 1/August 1998 Page 3 of3
North Carolina
Department of Environment and Natural Resources
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Division of Water Quality
Wilmington Regional Office
January 23, 2001
Mr. William H. Buchanan, Jr., Partner
South College Associates, LLC
228 South Front Street
Wilmington, NC 28401
11A
LT A
4 0 •
����.
NCDENR
ENVIRONMENT AND NATURAL RESOURCES
Subject: COMPLIANCE INSPECTION
The Lakes at Johnso^ Farms
Stormwater Project No. SW8 970144
960206, and 940707
New Hanover County
Dear Mr. Buchanan:
Please find attached a copy of the completed form entitled "Stormwater Compliance Inspection Report". The
report summarizes the findings of a recent inspection of the project's stormwater controls conducted on January 19,
2001 to determine compliance with Stormwater Permit Numbers SW8 970144, 960206, and 940707 issued on
March 26, 1997, March 25, 1996, and March 22, 1996, respectively.
A summary of the findings and comments are noted under Section 4 of the report. Please inform this Office
in writing before February 23, 2001 of the specific actions that will be undertaken and the time frame required to
correct the deficiencies. Failure to provide the requested information, when required, may initiate enforcement
action. If you have any questions please contact me at the Wilmington Regional Office, telephone number (910)
395-3900.
Sincerely,
,�&� A.,"
Linda Lewis
Environmental Engineer
RSSlarl: S:1WQSISTORMWATIINSPEC R940707-2.JAN
cc: Joseph Hill, P.E.
Central Files
Wilmington Regional Office
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled110% post -consumer paper
STORMWATER COMPLIANCE INSPECTION REPORT
2
Project Name: The Lakes at Johnson Farms
Project Number: SWS 970144, 960206, and 940707
Control Measure: 5 wet detention ponds
Water Body: Mott Creek Classification: C SW
Directions to site, address: Wishing Well Road off Carolina Beach Road, approximately 1 mile north of
Monkey Junction.
Inspection Date: January 19, 2001
Weather Conditions: Sunny, warm
3. Coriipliance Issues.
a. The main issue, as has been documented in past reports, is the lack of a vigorous vegetated cover on
the slopes.
b. The approved plans indicate that a trash rack is to be constructed, however, all of the outlet structures
have open faces above the orifice with a grate on top. This configuration does not catch the majority
of the trash that collects in the ponds.
C. Recorded deed restrictions have not been received for Phases V or VI.
d. The Designer's Certification for Phases V and VI has not been submitted.
14. Required Actions:
a. Please repair eroded areas, and stabilize the pond slopes with permanent vegetated cover. Planting
a temporary cover will not satisfy the requirement to provide permanent cover.
b. Please add trash racks which also cover the open face of the outlet structure.
C. Please submit a copy of the recorded deed restrictions for Phases V and VI.
d. Please submit the Designer's Certification for Phases V and VI.
Inspector: Linda Lewis
Water Quality/Wilmington Regional Office/(910) 395-3900
RSS/arl: S:IWQSISTORMWATIINSPECT1940707.JAN
2
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff drains to the system.
4. The outlet/bypass structure elevations are per the approved plan
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass stricture.
7. All slopes are grassed with permanent vegetation.
$. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of the system.
1 p. The permitted amounts of surface area and/or volume have been provided.
.11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
14. The overall dimensions of the system, as shown on the approved plans, are provided.
S:IWQSISTORMWATIFORMSIPECERT.FOR
cc: NCDENR-DWQ
Tony Roberts, New Hanover County Building Inspector
i
The Lakes at Johnson Farms, Phase VI
New Hanover County
Stormwater Project No. SW$ 970144
Designer's Certification
1, , as a duly registered in the
State ofNorth Carolina, having been authorized to observe (period ical lylweekly/full time) the construction of the
project,
(Project)
for (Project Owner) hereby Mate that. to the best of my abilities, due care
and diligence was used in the observation of the project construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications.
Required Items to be checked for this certification to be considered complete are on page 2 of this form.
Noted deviations from approved plans and specifications:
SEAL
Signature
Registration Number
Date
cc: NCDENR DWQ Regional Office
Tony Roberts, New Hanover County Building Inspector
Certification Requirements:
l . The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.....
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
S. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly, sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
14.. The overall dimensions of the system, as shown on the approved plans; are provided:
S:IWQSISTORMWATIFORMSIPECERT.FOR
cc: NCDENR-DWQ
Tony Roberts, New Hanover County Building Inspector
4
,■
The Lakes at Johnson Farms, Phase V
New 1 Ianover County
Stormwater Project No.'SW8 960206
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodicall ylweekIy/full time) the construction of the
proj ect,
(Project)
for {Project Owner) hereby state that, to the best of my abilities, due care
and diligerice was used in the observation of the project construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications.
Required Items to be checked for this certification to be considered complete are on page 2 of this form.
Noted deviations from approved plans and specifications:
Signature:
Registration Number
Date
NCDENR DWQ Regional Office
Tony Roberts, New Hanover County Building Inspector
SEAL
E
HIGH -DENSITY
STATE STORMWATER INSPECTION REPORT
Project Name: The Lakes at Johnson Farms Phase VI Permit No: SW8970144 Expiration date: 3126/07
Contact Person: Mr. William Buchanan,_ Partner Phone No:
County: New Hanover Center of Project GPS: Lat: 34' 09' 27.834 "N Long: 771 54' 02.387 "W
Facility Address: #4 off of Pine Hollow Dr. Pond 5 one street over from S lit Rail Dr. City: Wilmington, NC Zip: 28401
(If multiple basins exist, specify basin(s): 2 basins Pond #4 and Pond #5
Entry time: 1:00 am ❑ pm ® Exit time: 2:15 am Elpm ® Dater 8114/07
Method of Treatment: (check one) ® Wet Detention ❑ Dry Detention ❑ Bioretention ❑ Wetland ❑ Sandfilter ❑ Swale
❑ Pocket Wetland ❑ Level Spreader ❑ Permeable Pavement ❑ Infiltration Basin Other: ❑
Receiving Waters: Barnards Creek . Classification: C-Sw River Basin: Cape Fear
GENERAL QUESTIONS FILE REVIEW
1. A signed copy of the Engineer's certification is in the files:
2. A signed copy of the Operation & Maintenance Agreement is in the files:
3. A copy of the recorded deed restrictions is in the files:
SITE VISIT
1. Drainage area is consistent with the permit:
2. Built -upon area to drainage area is consistent with the permit:
3. All built -upon area (as permitted) is graded such that the runoff drains to the system:
4. The outlet structure is located per the approved plans:
5. The trash rack is provided on the outletlbypass structure:
6. The trash rack is free of debris and excess trash:
7. All slopes are grassed with permanent vegetation:
8. Vegetated slopes are no steeper than 3:1
9. The inlets are located per the approved plans and do not cause short-circuiting of the system:
YES NO NA NE
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10. Access points are clear and well maintained:
11. Forebay is free of excessive sediment:
12. Banks are stable with no erosion present:
13. Vegetation and trash have been removed as needed:
14. Drawdown device is correctly sized per the approved plans:
15. Grass is mowed (not scalped) as required:
16. All required parts of the system are provided (such as vegetated shelf and a forebay):
17. The swale or outlet bypass is in the correct place and is in good condition:
18. Vegetated shelf is 6:1 and properly vegetated:
19. Invasive species/tree control is provided as needed
YES
NO
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20. Tree pruning, mulch and plant replacement are provided as needed in the bioretention basin:
21. Permeable pavement has had regular sweeping and vacuuming:
22. Gravel replacement is performed as needed:
23. Excessive landscape debris (grass clippings, leaves, & sediment) are controlled:
24. Large stemmed vegetation is kept off of the level spreader:
25. Sediment and debris is removed from behind the lip of the level spreader on a routine basis:
26. Maintenance records are available for inspection:
I
O
NLA
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R
COMMENTS: each NO answer should have a comment
The following items of concern were noted during the inspection and must be addressed immediately:
1. A signed copy of the Engineer's certification is not in the files as required. This should be submitted at once.
2. A copy of the recorded deed restrictions is not in the files as required. These should be provided at once.
3. Pond #4 has severe erosion due to the placement of the inlet.
4. The berm between the forebay and the main pond has been "blown out" and should be returned to design specifications.
S. The outlet box is not accessible to check the orifice.
Pond #5
1. Berm between the forebay and the main pond has been "cut-out". This was not shown on the plans
2. Some of the vegetative cover on the slopes and top appears to have been mowed to close causing it to die off also causing
some
erosion of the slopes to take place. This should be repaired at once.
3. The trash rack is full of lawn debris and needs to be kept clear.
4. the pond level was still high even though it had been over a week since a rainfall event due to the partially plugged orifice.
5. Maintenance records were not available for view.
Pond #4 Inlet directly across from berm has Severe erosion due to inlet configuration
blown out the berm could cause short
circuiting
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