HomeMy WebLinkAbout20221070 Ver 1_Aurora Industrial Park Stormwater Permit_20220809 --"',a STATE��y�0
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ELIZABETH S.RISER h- ,
Secretary ``�"� `
BRIAN WRENN NORTH CAROLINA
Director Environmental Quality
June 30, 2022
Town of Aurora
Attn: Cliff Williams - Mayor
PO Box 86
Aurora, NC 27806
Subject: State Stormwater Management Permit No. SW7220606
Aurora Industrial Park
High Density Project
Beaufort County
Dear Cliff Williams:
The Washington Regional Office received a complete State Stormwater Management Permit
Application for the subject project on June 20, 2022. Staff review of the plans and specifications
has determined that the project, as proposed, complies with the Stormwater Regulations set
forth in Title 15A NCAC 02H.1000 amended on January 1, 2017 (2017 Rules). We are hereby
forwarding Permit Number SW7220606 dated June 30, 2022, for the construction of the built-
upon areas (BUA) and stormwater control measures (SCMs) associated with the subject
project.
This permit shall be effective from the date of issuance until June 29, 2030 and the project shall
be subject to the conditions and limitations as specified therein and does not supersede any
other agency permit that may be required. Failure to comply with these requirements will result
in future compliance problems. Please note that this permit is not transferable except after
notice to and approval by the Division.
This cover letter, attachments, and all documents on file with DEMLR shall be considered part
of this permit and is herein incorporated by reference.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing by filing a written petition with the Office of
Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North
Carolina General Statutes and must be filed with the OAH within thirty (30) days of receipt of
this permit. You should contact the OAH with all questions regarding the filing fee (if a filing fee
is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC
27699-6714, or via telephone at 919-431-3000, or visit their website at www.NCOAH.com.
Unless such demands are made this permit shall be final and binding.
If you have any questions concerning this permit, please contact Carl Dunn in the Washington
Regional Office, at (252) 948-3959 or carl.dunn@ncdenr.gov.
Sincerely,
a — ---
William Carl Dunn, PE
Division of Energy, Mineral and Land Resources
Enclosures: Attachment A—Designer's Certification Form
Application Documents
cc: Michelle Clements,PE—The East Group(michelle.clements@eastgroup.com)
Beaufort County Inspections—Brandon Hayes(brandon.hayes@co.beaufort.nc.us)
Washington Regional Office Stormwater File
w- North Carolina Department of Environmental Quality I Division of Energy.Mineral and Land Resources
"*;) Washington Regional Office 1943 Washington Square Mall I Washington,North Carolina 27889
g or Enviromnenuifavun� 252.94bb48l
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In compliance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations promulgated and
adopted by the North Carolina Environmental Management Commission, including 15A
NCAC 02H.1000 amended on January 1, 2017 (2017 Rules) (the "stormwater rules"),
PERMISSION IS HEREBY GRANTED TO
Town of Aurora
Aurora Industrial Park
Hwy 33, Aurora, Beaufort County
FOR THE
construction, management, operation and maintenance of built -upon area draining to one
wet pond ("stormwater control measures" or "SCMs") discharging to Class SC;NSW waters
as outlined in the application, approved stormwater management, supplement,
calculations, operation and maintenance agreement, recorded documents, specifications,
and other supporting data (the "approved plans and specifications") as attached and/or on
file with and approved byte Division of Energy, Mineral and Land Resources (the
"Division" or "DEMLR"). The project shall be constructed, operated and maintained in
accordance with these approved plans and specifications. The approved plans and
specifications are incorporated by reference and are enforceable part of this permit.
This permit shall be effective from the date of issuance until June 29, 2030 and shall be
subject to the following specified conditions and limitations. The permit issued shall
continue in force and effect until the permittee files a request with the Division for a permit
modification, transfer, renewal, or rescission; however, these actions do not stay any
condition. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit for
cause as allowed by the laws, rules, and regulations contained in Title 15A NCAC 2H.1000
and NCGS 143-215.1 et.al.
1. BUA REQUIREMENTS. The maximum amount of BUA allowed for the entire project is
898,000 square feet. The runoff from all BUA within the permitted drainage area of
this project must be directed into the permitted SCM. The BUA requirements and
allocations for this project are as follows:
a. SCM BUA LIMITS. The SCM has been designed using the runoff treatment method
to handle the runoff from 898,000 square feet of BUA within the delineated
drainage area. This permit does not provide any allocation of BUA for future
development within the delineated drainage area.
2. PERVIOUS AREA IMPROVEMENTS. At this time, none of the pervious area
improvements listed in G.S. 143-214.7(b2) or the Stormwater Design Manual have
been proposed for this project. Pervious area improvements will be allowed in this
project if documentation is provided demonstrating those improvements meet the
requirements of the stormwater rule.
3. OFFSITE LOT REQUIREMENTS. Each non-residential lot whose ownership is not
retained by the permittee shall submit a separate off -site stormwater permit
application to the Division and receive approval prior to construction. Prior to the
discharge of stormwater runoff from any lot into the approved stormwater system,
the permittee shall ensure that the owner of the non-residential lot has obtained the
separate off -site stormwater management permit.
4. SCM REQUIREMENTS. The SCM requirements for this project are as follows:
a. SCM DESIGN. The SCM is permitted based on the design criteria presented in the
sealed, signed and dated supplement and as shown in the approved plans and
specifications. This SCM must be provided and maintained at the design condition.
b. FOUNTAINS. At this time, a decorative spray fountain has not been proposed
within the wet pond. Decorative spray fountains will be allowed in the wet pond if
documentation is provided demonstrating that the proposed fountain will not
cause resuspension of sediment within the pond or cause erosion of the pond side
slopes.
c. IRRIGATION. If the wet pond is to be used for irrigation, it is recommended that
some water be maintained in the permanent pool, the vegetated shelf is planted
with appropriate species that can handle fluctuating conditions, and human health
issues are addressed.
5. STORMWATER OUTLETS. The peak flow from the 10-year storm event shall not
cause erosion downslope of the discharge point.
6. VEGETATED SETBACKS. A 50-foot wide vegetative setback must be provided and
maintained in grass or other vegetation adjacent to all surface waters as shown on the
approved plans. The setback is measured horizontally from the normal pool elevation
of impounded structures, from the top of bank of each side of streams or rivers, and
from the mean high waterline of tidal waters, perpendicular to the shoreline.
7. RECORDED DOCUMENT REQUIREMENTS. The stormwater rules require the
following documents to be recorded with the Office of the Register of Deeds:
a. ACCESS AND/OR EASEMENTS. The entire stormwater conveyance system,
including any SCMs, and maintenance accesses must be located in public rights -of -
way, dedicated common areas that extend to the nearest public right-of-way,
and/or permanent recorded easements that extend to the nearest public right-of-
way for the purpose of inspection, operation, maintenance, and repair.
b. OPERATION AND MAINTENANCE AGREEMENT. The operation and maintenance
agreement must be recorded with the Office of the Register of Deeds.
c. FINAL PLATS. The final recorded plats must reference the operation and
maintenance agreement and must also show all public rights -of -way, dedicated
common areas, and/or permanent drainage easements, in accordance with the
approved plans.
8. CONSTRUCTION. During construction, erosion shall be kept to a minimum and any
eroded areas of the on -site stormwater system will be repaired immediately.
a. PROJECT CONSTRUCTION, OPERATION AND MAINTENANCE. During
construction, all operation and maintenance for the project shall follow the
Erosion Control Plan requirements until the Sediment -Erosion Control devices are
converted to SCMs or no longer needed. Once the device is converted to a SCM, the
permittee shall provide and perform the operation and maintenance as outlined in
the applicable section below.
b. SCM RESTORATION. If one or more of the SCMs are used as an Erosion Control
device and/or removed or destroyed during construction, it must be restored to
the approved state stormwater design condition prior to close-out of the erosion
control plan and/or project completion and/or transfer of the state stormwater
permit. Upon restoration, a new or updated certification will be required for the
SCM(s) and a copy must be submitted to the appropriate DEQ regional office.
9. MODIFICATIONS. No person or entity, including the permittee, shall alter any
component shown in the approved plans and specifications. Prior to the construction
of any modification to the approved plans, the permittee shall submit to the Director,
and shall have received approval for modified plans, specifications, and calculations
including, but not limited to, those listed below. For changes to the project or SCM
that impact the certifications, a new or updated certifications), as applicable, will be
required and a copy must be submitted to the appropriate DEQ regional office upon
completion of the modification.
a. Any modification to the approved plans and specifications, regardless of size
including the SCM(s), BUA, details, etc.
b. Redesign or addition to the approved amount of BUA or to the drainage area.
c. Further development, subdivision, acquisition, lease or sale of any, all or part of
the project and/or property area as reported in the approved plans and
specifications.
d. Altering, modi ing, removing, relocating, redirecting, regrading, or resizing of any
component of t e approved SCM(s), stormwater collection system and/or
vegetative conveyance shown on the approved plan.
e. The construction of any allocated future BUA.
f. The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material within the common areas to be considered a permeable
surface that were not included in the approved plans and specifications.
Other modifications as determined by the Director.
g.
10. DESIGNER'S CERTIFICATION. Upon completion of the project, the permittee shall
determine if the project is in compliance with the approved plans and take the
necessary following actions:
a. If the permittee determines that the project is in compliance with the approved
plans, then within 45 days of completion, the permittee shall submit to the
Division one hard copy and one electronic copy of the following:
i. The completed and signed Designer's Certification provided in
Attachment A noting any deviations from the approved plans and
specifications. Deviations may require approval from the Division;
ii. A copy of the recorded operation and maintenance agreement;
iii. Unless already provided, a copy of the recorded deed restrictions and
protective covenants; and
iv. A copy of the recorded plat delineating the public rights -of -way,
dedicated common areas and/or permanent recorded easements,
when applicable.
b. If the permittee determines that the project is not in compliance with the
approved plans, the permittee shall submit an application to modify the permit
within 30 days of completion of the projector provide a plan of action, with a
timeline, to bring the site into compliance.
11. OPERATION AND MAINTENANCE. The permittee shall provide and perform the
operation and maintenance necessary, as listed in the signed operation and
maintenance agreement, to assure that all components of the permitted on -site
stormwater system are maintained at the approved design condition. The approved
operation and maintenance agreement must be followed in its entirety and
maintenance must occur at the scheduled intervals.
a. CORRECTIVE ACTIONS REQUIRED. If the facilities fail to perform satisfactorily,
the permittee shall take immediate corrective actions. This includes actions
required by the Division and the stormwater rules such as the construction of
additional or replacement on -site stormwater systems. These additional or
replacement measures shall receive a permit from the Division prior to
construction.
b. MAINTENANCE RECORDS. Records of maintenance activities must be kept and
made available upon request to authorized personnel of the Division. The records
will indicate the date, activity, name of person performing the work and what
actions were taken.
12. PERMIT RENEWAL. A permit renewal request must be submitted at least 180 days
prior to the expiration date of this permit. The renewal request must include the
appropriate application, documentation and the processing fee as outlined in 15A
NCACp02H.1045(3).
13. CURRENT PERMITTEE NAME OR ADDRESS CHANGES. The permittee shall submit a
completed Permit Information Update Application Form to the Division within 30
days to making any one or more of the following changes:
a. A name change of the current permittee;
b. A name change of the project;
c. A mailing address change of the permittee.
14. TRANSFER. This permit is not transferable to any person or entity except after notice
to and approval by the Director. Neither the sale of the project and/or property, in
whole or in part, nor the conveyance of common area to a third party constitutes an
approved transfer of the permit.
a. TRANSFER REQUEST. The transfer request must include the appropriate
application, documentation and the processing fee as outlined in 15pA NCAC
02H.1045(2) and must be submitted upon occurrence of any one or more of the
following events:
i. The sale or conveyance of the project and/or property area in whole or in
part;
ii. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS
55-14-05 or NCGS 57D-6-07 and 08;
iii. Bankruptcy;
iv. Foreclosure, subject to the requirements of Session Law 2013-121;
b. TRANSFER INSPECTION. Prior to transfer of the permit, a file review and site
inspection will be conducted by Division personnel to ensure the permit
conditions have been met and that the project and the on -site stormwater system
complies with the permit conditions. Records of maintenance activities performed
to date may be requested. Projects not in compliance with the permit will not be
transferred until all permit and/or general statute conditions are met.
15. COMPLIANCE. The permittee is responsible for complying with the terms and
conditions of this permit and the approved plans and specifications until the Division
approves the transfer request.
a. REVIEWING AND MONITORING FOR COMPLIANCE. The permittee is responsible
for verifying that the proposed BUA within each drainage area and for the entire
project does not exceed the maximum amount allowed by this permit. The
permittee shall review and routinely monitor the project to ensure continued
compliance with the conditions of the permit, the approved plans and
specifications.
b. APPROVED PLANS AND SPECIFICATIONS. A copy of this permit, approved plans,
application, supplement, operation and maintenance agreement, all applicable
recorded documents, and specifications shall be maintained on file by the
permittee at all times.
c. DIVISION ACCESS. The permittee grants Division Staff permission to enter the
property during normal business hours to inspect all components of the permitted
project.
d. ENFORCEMENT. Any individual or entity found to be in noncompliance with the
provisions of a stormwater management permit or the requirements of the
stormwater rules is subject to enforcement procedures as set forth in NCGS 143
Article 21.
e. OBTAINING COMPLIANCE. The Director ma notify the permittee when the
permitted site does not meet one or more of the minimum requirements of the
permit.Within the time frame specified in the notice, the permittee shall submit a
written time schedule to the Director for modifying the site to meet minimum
requirements. The permittee shall provide copies of modified plans and
certification in writing to the Director that the changes have been made.
f. OTHER PERMITS. The issuance of this permit does not preclude the permittee
from obtaining and complying with any and all other permits or approvals that are
required for this development to take place, as required by any statutes, rules,
regulations, or ordinances, which are imposed by any other Local, State or Federal
government agency having jurisdiction.Any activities undertaken at this site that
cause a water quality violation or undertaken prior to receipt of the necessary
permits or approvals to do so are considered violations of NCGS 143-215.1, and
subject to enforcement procedures pursuant to NCGS 143-215.6.
Permit issued this the 30th day of June 2022.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
"1 '-
x Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW7220606
Attachment A
Certification Forms
The following blank Designer Certification forms are included and specific for this project:
• As -Built Permittee Certification
• As -Built Designer's Certification General MDC
• As -Built Designer's Certification for Wet Detention Pond Project
A separate certification is required for each SCM. These blank certification forms may be
copied and used, as needed, for each SCM and/or as a partial certification to address a section
or phase of the project.
AS -BUILT PERMITTEE CERTIFICATION
I hereby state that I am the current permittee for the project named above, and I certify by
my signature below, that the project meets the below listed Final Submittal Requirements
found in NCAC 02H.1042(4) and the terms, conditions and provisions listed in the permit
documents, plans and specifications on file with or provided to the Division.
n Check here if this is a partial certification. Section/phase/SCM
#?
Check here if this is part of a Fast Track As -built Package Submittal.
Printed Name Signature
1, , a Notary Public in the State of
County of , do hereby certify that
personally appeared before me this
day of , 20
and acknowledge the due execution of this as -built certification. (SEAL)
Witness my hand and official seal
My commission expires
Permittee's Certification NCAC .1042(4)
Completed /
N A
/
A. DEED RESTRICTIONS / BUA RECORDS
1. The deed restrictions and protective covenants have been
recorded and contain the necessary language to ensure that the
project is maintained consistent with the stormwater regulations
and with the permit conditions.
Y or N
2. A copy of the recorded deed restrictions and protective
covenants has been provided to the Division.
Y or N
3. Records which track the BUA on each lot are being kept. (See
Note 1)
Y or N
B. MAINTENANCE ACCESS
1. The SCMs are accessible for inspection, maintenance and repair.
Y or N
2. The access is a minimum of 10 feet wide.
Y or N
3. The access extends to the nearest public right-of-way.
Y or N
C. EASEMENTS
1. The SCMs and the components of the runoff collection /
conveyance system are located in recorded drainage easements.
y or N
2. A copy of the recorded plat(s) is provided.
Y or N
D. SINGLE FAMILY RESIDENTIAL LOTS - Plats for residential lots that
have an SCM include the following:
Y or N
1. The specific location of the SCM on the lot.
Y or N
2. A typical detail for the SCM.
Y or N
3. A note that the SCM is required to meet stormwater regulations
and that the lot owner is subject to enforcement action as set
forth in NCGS 143 Article 21 if the SCM is removed, relocated or
altered without prior approval.
E. OPERATION AND MAINTENANCE AGREEMENT
1. The O&M Agreement is referenced on the final recorded plat.
2. The O&M Agreement is recorded with the Register of Deeds and
appears in the chain of title.
F. OPERATION AND MAINTENANCE PLAN - maintenance records are
being kept in a known set location for each SCM and are available for
review.
G. DESIGNER'S CERTIFICATION FORM - has been provided to the
Division.
Y or N
Y or N
Y or N _
Y or N
Y or N
Y or N
Note 1- Acceptable records include ARC approvals, as -built surveys, and county tax records.
Provide an explanation for every requirement that was not met, and for every "N/A" below.
Attach additional sheets as needed.
AS -BUILT DESIGNER'S CERTIFICATION GENERAL MDC
I hereby state that I am a licensed professional and I certify by my signature and seal below,
that I have observed the construction of the project name above to the best of my abilities
with all due care and diligence, and that the project meets the below listed General MDC
found in NCAC 02H.1050 in accordance with the permit documents, plans and
specifications on file with or provided to the Division, except as noted on the "AS -BUILT"
drawings, such that the intent of the stormwater rules and statutes has been preserved.
n Check here if this is a partial certification. Section/phase/SCM
#7
Check here if this is a part of a Fast -Track As -Built Package Submittal per .1044(3).
Check here if the designer did not observe the construction, but is certifying the project.
Check here if pictures of the SCM are provided.
Printed Name
NC Registration Number
SEAL:
Signature
Date
Consultant's Mailing Address:
City/State/ZIP
Phone Number
Consultant's Email address:
i0 Circle N if the as -built value differs from the Plan. If N is circled, provide an explanation
on Page 2.
OO N/E = not evaluated (provide explanation on page 2) OO N/A = not applicable to this SCM
or project.
Consultant's Certification NCAC 1003((3) & General
MDC .1050
®As -built
Oz N/
E
OO N/A
A. TREATMENT REQUIREMENTS
1.
The SCM achieves runoff treatment.
Y or N
2.
The SCM achieves runoff volume match.
Y or N
3.
Runoff from offsite areas and/or existing BUA is
bypassed.
Y or N
4.
Runoff from offsite areas and/or existing BUA is
directed into the permitted SCM and is accounted for
at the full build -out potential.
Y or N
5.
The project controls runoff through an offsite
permitted SCM that meets the requirements of the
MDC.
Y or N
6. The net area of new BUA increase for an existing
project has been accounted for at the appropriate
design storm level.
Y or N
7. The SCM(s) meets all the specific minimum design
criteria.
y or N
B. VEGETATED SETBACKS / BUA
1. The width of the vegetated setback has been
measured from the normal pool of impounded
waters, the MHW line of tidal waters, or the top of
bank of each side of rivers or streams.
Y or N
2. The vegetated setback is maintained in grass or other
vegetation.
y or N
3. BUA that meets the requirements of NCGS 143-214.7
(b2)(2) is located in the setback.
y or N
4. BUA that does not meet the requirements of NCGS
143-214.7 (b2) (2) is located within the setback and is
limited to:
a. Publicly funded linear projects (road, greenway
sidewalk)
b. Water -dependent structures
c. Minimal footprint uses (utility poles, signs,
security lighting and appurtenances)
Y or N
5. Stormwater that is not treated in an SCM is released
at the edge of the setback and allowed to flow through
the setback as dispersed flow.
Y or N
®As -built
Oz E /
®N/A
C. STORMWATER OUTLETS - the outlet handles the peak
flow from the 10 year storm with no downslope erosion.
y or N
D. VARIATIONS
1. A variation (alternative) from the stormwater rule
provisions has been implemented.
y or N
2. The variation provides equal or better stormwater
control and equal or better protection of surface
waters.
Y or N
E. COMPLIANCE WITH OTHER REGULATORY PROGRAM S
has been met.
Y or N
F. SIZING -the volume of the SCM takes the runoff from all
surfaces into account and is sufficient to handle the
required storm depth.
Y or N
G. CONTAMINATED SOILS - infiltrating SCM's are not
located in or on areas with contaminated soils.
Y or N
H. SIDE SLOPES
1. Vegetated side slopes are no steeper than 3H:1V.
Y or N
2. Side slopes include retaining walls, gabion walls, or
other surfaces that are steeper than 3H:1V.
Y or N
3. Vegetated side slopes are steeper than 3H:1V
(provide supporting documents for soils and
vegetation).
Y or N
I. EROSION PROTECTION
1. The inlets do not cause erosion in the SCM.
Y or N
2. The outlet does not cause erosion downslope of the
discharge point during the peak flow from the 10 year
storm.
Y or N
J. EXCESS FLOWS - An overflow / bypass has been
provided.
Y or N
K. DEWATERING - A method to drawdown standing water
has been provided to facilitate maintenance and
inspection.
y or N
L. CLEANOUT AFTER CONSTRUCTION - the SCM has been
cleaned out and converted to its approved design state.
y or N
M. MAINTENANCE ACCESS
1. The SCM is accessible for maintenance and repair.
Y or N
2. The access does not include lateral or incline slopes
>3:1.
y or N
N. DESIGNER QUALIFICATIONS (FAST -TRACK PERMIT) —
The designer is licensed under Chapters 89A, 89C, 89E, or
89F of the General Statutes.
Y or N
Provide an explanation for every MDC that was not met, and for every item marked "N/A"
or "N/E", below. Attach additional pages as needed:
AS -BUILT DESIGNER'S CERTIFICATION FOR WET DETENTION POND PROJECT
I hereby state that I am a licensed professional and I certify by my signature and seal below,
that I have observed the construction of the project names, above to the best of my abilities
with all due care and diligence, and that the project meets all of the MDC found in NCAC
02H.1053, in accordance with the permit documents, plans and specifications on file with
or provided to the Division, except as noted on the "AS -BUILT" drawings, such that the
intent of the stormwater rules and the general statutes has been preserved.
❑ Check here if this is a partial certification. Section/phase/SCM
Check here if this is part of a Fast -Track As -Built Package Submittal per .1044(3).
Check here if the Designer did not observe the construction, but is certifying the project.
Check here if pictures of the SCM are provided.
Printed Name Signature
NC Registration Number Date
Consultant's Mailing Address:
SEAL:
City/State/ZIP
Phone Number
Consultant's Email address:
OO Circle N if the as -built value differs from the PIan/permit. If N is circled, provide an
explanation on page 2
OO N/E = not evaluated (provide explanation on page 2) OO N/A = not applicable to this
project or SCM.
This Certification must be completed in conjunction with the General MDC certification under
NCAC 02H.1050
Consultant's Certification (MDC .1053)
CDAs-built
ON/E
ON/A
A. Forebay / Depths / Fountain
1. The available Sediment storage is consistent with the
approved plan and is a minimum of 6 in.
y or N
2. Water flow over the forebay berm into the main pond
occurs at a non -erosive velocity.
y or N
3. The provided Forebay Volume is 1S%-20% of the main -
pool volume.
y or N
4. The Forebay entrance elevation is deeper than the exit
elevation into the pond.
y or N
5. The Average Design Depth of the main pond below the
permanent pool elevation is consistent with the
permitted value?
Y or N
6. Fountain documentation is provided.
Y or N
B. Side slopes / Banks / Vegetated Shelf
1. The width of the Vegetated Shelf is consistent with the
approved plans and is a minimum of 6 feet.
Y or N
2. The slope of the Vegetated Shelf is consistent with the
approved plans and is no steeper than 6:1.
y or N
C. As -built Main Pool / Areas / Volumes / Elevations
1. The permanent pool surface area provided is consistent
with the permitted value.
y or N
2. The Temporary Pool Volume provided is consistent
with the permitted value.
Y or N
3. The permanent pool elevation is consistent with the
permitted value.
y or N
-
4. The temporary pool elevation is consistent with the
permitted value.
y or N
®
®As -built
ON/E
OO N/A
D. Inlets / Outlet / Drawdown
-
1. The design volume draws down in 2-5 days.
Y or N
2. The size of the Orifice is consistent with the permitted
value.
Y or N
3. A trash rack is provided on the outlet structure.
Y or N
4. Hydrologic impacts to the receiving channel are
minimized from the 1 yr 24 hr storm discharge?
Y or N
_
5. The inlets and the outlet location are situated per the
approved plan and avoid short-circuiting.
Y or N
E. Vegetation
1. The vegetated shelf has been planted with a minimum
of 3 diverse species.
Y or N
2. The vegetated shelf plant density is consistent with the
approved plans and is no less than 50 plants per 200 sf
or no less than 24 inches on center,
Y or N
Provide an explanation for every MDC that was not met, and for every item marked "N/A"
or "N/E" below. Attach additional pages as needed: