20061360 Ver 1_Stormwater Info_20061031

BRL ENGINEERING
T54-S Eaat Stanlgr Stmt
Four Oaka, NC 27524
~8t9) 9i3-2i08
,~
Brian R. Leonard, PE, PLS
October 27, 2006
Ms. Amy Chapman
Buffer Coordinator
NC Division of Water Quality -Central Office
2321 Crabtree Boulevard -Suite 250
Raleigh, NC 27604
Re: Operation & Maintenance Agreements for Minor Variance Application
For Lots 17 & 18 in Carriage Hills Subdivision, In City of Raleigh
Dear Ms. Chapman:
At your request, I am submitting herewith the executed copies of the Operation & Maintenance
Agreements for the above-referenced project. Enclosed are the following documents:
1) Level Spreader Operation & Maintenance Forms - 2 Originals for Lots 17 & 18
respectively; signed by the Owner and notarized;
2) Grass Swale Operation & Maintenance Forms - 2 Originals for Lots 17 & 18
respectively; signed by the Owner and notarized;
These forms should complete the documents needed to complete our previously submitted
Stormwater Plan and for you to process the Minor Variance Request. Please contact me if you have
any questions.
Sincerely,
BRL ENGINEERING
Brian R. Leonard, PE, PLS
BRU1
Cc: Ross Lampe
Attachments: As Noted
~ ~~
i"'~
O`' T e~ ,'il' CVo~ -~
D'j'ET+ DENS - WATER QUAt,I l'Y
~AND3 AND STO.R~iWA.TF.fi ARANCI~

LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT
The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff.
Maintenance activities shall be performed as follows:
1. After construction and until vegetation has been established, level spreader(s) shall be inspected
after every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and
more frequently during the fall season and after heavy rainfall events:
a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required;
b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure,
and concentrated flows downhill from the level spreader(s);
c. A level elevation shall be maintained across the entire flow-spreading structure at all
times. Repair or replace the level spreader if it is damaged;
d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over
half of the level spreader surface;
e. Repair eroded areas and replace/replant dead or damage vegetation.
2. The Contractor should avoid the placement of any material on and prevent construction traffic
across the structure. If the measure is damaged by construction traffic, it shall be repaired
immediately.
3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, rip rap) four (4) times
a yeaz to maintain proper functioning.
I acknowledge and agree by my signatwe below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to
any changes to the system or responsible party.
Print Name: Ross W. Lampe
Title: Current Owner -Lot 17 in Carria¢e Hills Subdivision
Address: 235 Market Street Smithfield NC 27577
Phone:
Signatw
Date: (~ J~J~ S U - LO O (~
Note: For multi-lot residential subdivisions, 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 president. For single-lot development or sites, the legally responsible party shall be the person or
entity named above, but legal responsibility may be transferred with the land by a legally binding
agreement or transfer of rights.
I, ~~/~'~~/ ~ ~Q,/s~~ a Notary Public for the State of ~f~ ~~Z,~,~Q~,(~,
County of •~ w , do hereby certify that ,~jjp (,.~ ~ Gjysyk~
personally appeazed before me this, day of ~G a?d~lJ ,and acknowledge the due
execution of the forgoing Level Spreader maintenance requirements. Witness my hand and official seal,
P qR ~.
~'~''~? ~~ s ~R ~!S'y'':
'~
• My Comm. Expires
5-23-0 P =
~O
'~'~ ~sl G~';.~~'
My commission expires o?0 0 ~

LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT
The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff.
Maintenance activities shall be performed as follows:
1. After construction and until vegetation has been established, level spreader(s) shall be inspected
after every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and
more frequently during the fall season and after heavy rainfall events:
a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required;
b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure,
and concentrated flows downhill from the level spreader(s);
c. A level elevation shall be maintained across the entire flow-spreading structure at all
times. Repair or replace the level spreader if it is damaged;
d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over
half of the level spreader surface;
e. Repair eroded azeas and replace/replant dead or damage vegetation.
2. The Contractor should avoid the placement of any material on and prevent construction traffic
across the structure. If the measure is damaged by construction traffic, it shall be repaired
immediately.
3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, rip rap) four (4) times
a yeaz to maintain proper functioning.
I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to
any changes to the system or responsible party.
Print Name: Ross W. Lampe
Title: Current Owner -Lot 18 in Cam a Hills Subdivision
Address: 235 Market Street Smithfield NC 27577
Phone:
S ignatu~
Date: UcX~~SC~ ~ Z 04 ~
Note: For multi-lot residential subdivisions, 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 president. For single-lot development or sites, the legally responsible party shall be the person or
entity named above, but legal responsibility may be transferred with the land by a legally binding
agre/e~ment or transfer of rights.
1, ~-~-^- '~ ~GZ ~ a Notary Public for the State of ~'~~(,(~.~t. ,
County of •-/ ___, do hereby certify that iQ~g~ ~,.> .[~_~~
personally appeared before me this 3J day of ~ c,~ , 2 d y L ,and acknowledge the due
execution of the forgoing Level Spreader maintenance requirements. Witness my hand and official seal,
,~~ti~~i~~~~r~~.
•``~ ~ P : ~ARgi ~' .
• My Grmm. cx~ires • •
•
••
~ •'~ JBL1C''•••••'~V:
=0'
My commission expires a 3 o7vll

GRASS SWALE OPERATION AND MAINTENANCE AGREEMENT
The grass swale is defined as an open runoff conveyance device, similar to a ditch, but with flat slopes and
side-slopes and soils that are suitable for infiltration. The device is designed for low velocities and may
utilize impedance devices to promote infiltration.
Maintenance activities shall be performed as follows:
1. After construction and until vegetation has been established, grass swale(s) shall be inspected
after every rainfall. Thereafter, grass swale(s) shall be inspected at least every month and more
frequently during the fall season and after heavy rainfall events:
a. At least once annually, remove excess sediment, especially from the upstream edge, to
maintain original contours and grading;
b. At least once annually, repair any erosion and regrade the swale(s) to ensure that the
runoff flows evenly in a thin sheet through the swale(s);
c. At least once annually, inspect vegetation and revegetate the swale(s) to maintain a dense
growth of vegetation;
d. Grassed swale(s) shall be mowed at least twice annually to a maximum height of six (6)
inches.
The Contractor should avoid the placement of any material on and prevent construction traffic
across the structure. If the measure is damaged by construction traffic, it shall be repaired
immediately.
Inspect and repair any stormwater conveyance devices upstream and downstream four times a
year to maintain proper functioning.
I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to
any changes to the system or responsible party.
Print Name: Ross W. Lampe
Title: Current Owner -Lot 17 in Carriage Hills Subdivision
Address: 235 Market Street, Smithfield NC 27577
Phone:
Signatui
Date:
sv - GC~o
Note: For multi-lot residential subdivisions, 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 president. For single-lot development or sites, the legally responsible party shall be the person or
entity named above, but legal responsibility may be transferred with the land by a legally binding
agreement or transfer of rights.
I, ~ ~• ~Clit.c.~ , a Notary Public for the State of ~p ~ ~{ ~'~~~,9,~,c,,,~
_.~-
County of ~./ , do hereby certify that ~~ w . ~G~.-ys`
personally appeared before me this ~~ day of Q L~ 260 G ,and acknowledge the due
execution of the forgoing Grass Swale maintenance requirements. Witness my hand and official seal,
P,••~~_.
My Corm. Expires
ti
My commission expires'/ °~`~ °1~v~

GRASS SWALE OPERATION AND MAINTENANCE AGREEMENT
The grass Swale is defined as an open runoff conveyance device, similaz to a ditch, but with flat slopes and
side-slopes and soils that are suitable for infiltration. The device is designed for low velocities and may
utilize impedance devices to promote infiltration.
Maintenance activities shall be performed as follows:
1. After constriction and until vegetation has been established, grass swale(s) shall be inspected
after every rainfall. Thereafter, grass swale(s) shall be inspected at least every month and more
frequently during the fall season and after heavy rainfall events:
a. At least once annually, remove excess sedunent, especially from the upstream edge, to
maintain original contours and grading;
b. At least once annually, repair any erosion and regrade the swale(s) to ensure that the
runoff flows evenly in a thin sheet through the swale(s);
c. At least once annually, inspect vegetation and revegetate the swale(s) to maintain a dense
growth of vegetation;
d. Grassed swale(s) shall be mowed at least twice annually to a maximum height of six (ti)
inches.
2. The Contractor should avoid the placement of any material on and prevent construction traffic
across the structure. If the measure is damaged by construction traffic, it shall be repaired
immediately.
3. Inspect and repair any stormwater conveyance devices upstream and downstream four times a
year to maintain proper functioning.
I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to
any changes to the system or responsible party.
Print Name: Ross W. Lampe
Title: Current Owner -Lot 18 in Carria a Hills Subdivision
Address: 235 Market Street Smithfield NC 27577 r
Phone: [phone] , - ; ~ n
Signature:
Date: v ©~'3c~ Zoo6
Note: For multi-lot residential subdivisions, 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 president. For single-lot development or sites, the legally responsible party shall be the person or
entity named above, but legal responsibility may be transferred with the land by a legally binding
agreement or transfer~of/r~ights.
I, (mac /k,«-~ ~. 7~Q~itc.•f! , a Notary Public for the State of ~J p~~,~( ,
County of ~rist... ~ ~--~ , do hereby certify that ~o~ c,.J - ~ G,.~..,..~_
0
personally appeared before me this .~~ day of p ~~ , 2 v vG ,and acknowledge the due
execution of the forgoing Grass Swale maintenance requirements. Witness my hand and official seal,
:'~~`P~N P p ~ 9isy~:
~-••
My C^mm. Expiros ~:
S`'`-~ ~
~~~ .'
. 0•. .~
.,~~~STQN'C~``,`~~.
My commission expires a~ °? U V