HomeMy WebLinkAboutWSP Waiver - Waiver - 135 SOUTH BRADFORD STREET 11/13/2024 t,
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O it4`p ;6=do Town of North Andover
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NOTICE OF DECISION
Watershed Special Permit-Waiver
Date of Decision: November 12, 2024
Application of: James Zimmer
135 South Bradford Street
North Andover, MA 01845
Premises Affected: 1.35 South Bradford Street, North Andover, MA 01845, Map 103,
Parcel 31,within the R-1 zoning district.
HISTORY AND BACKGROUND
On October 9, 2024 the applicant requested a waiver of the Watershed Protection District Special
Permit, in accordance with the North Andover Zoning Bylaw Article 4 Section 195-4.24, Waiver
of Special Permit, so as to allow construction of a construction of a 14=4' x 16.5' kitchen addition
and 14.4' x 16.5' screened porch in the Non-Discharge Zone of the Watershed Protection District.
Bordering vegetated wetlands are located approximately 180' away from the proposed land
disturbance. The additions and landing foundation will consist of seven concrete footings. The
project does not require any change to topography, vegetation removal, expand the existing
footprint of the structure, and the structure is on town sewer.
FINDING OF FACT
The Planning Board has made its decision based on the following findings:
• The scope consists of installation of seven concrete footings,
• No vegetation removal or regrading is required.
• A waiver of the Watershed Protection District special permit is requested, and although
there is an impervious structure proposed there will be very limited ground disturbance.
• The September 23 2024, revised to October 7, 2024, site plan was created by Hayes
Engineering, Inc. and the stormwater management design captures '/z inches of rainfall in
12 hours over the entire roof area with a safety factor of 65% size.
• The existing and proposed roof drains are proposed to connect to 4 Cultec C-100
subsurface infiltration chambers.
• Town Engineer, Sohn Borgesi,peer reviewed the stormwater management design and
deemed it to be sufficient,
CONDITIONS
• A 12" diameter mulch sock, staked at 4' intervals, will be installed at the limit of
work prior to building permit issuance.
• As required per§195-4.24 Waiver of special permit on the Zoning Bylaw,the applicant
i
i
must schedule and agree in writing for the Town Planner to perform a minimum of two
inspections during the construction process to ensure proper erosion control is
established during construction.
• The Applicant shall incorporate the following conditions as a deed restriction and a
copy of the recorded deed restriction shall be submitted to the Town Planner and
included in the file.
o Fertilizers are limited to those which are either organic or slow-release nitrogen and
phosphorous free.
o The use of coal tar-based pavement sealants is prohibited.
• This decision must be filed with the North Essex Registry of Deeds and a copy of the
recording submitted to the Town Planner.The following information is included as part
of this decision:
Plan titled: Plan of Land in North Andover, Mass. Showing Proposed Addition 135
South Bradford Street
Date: September 23, 2024,revised to November 5, 2024
Long-Tenn Stormwater Operations&Maintenance flan 135 South Bradford St.,North
Andover
DECISION
After a Planning Board meeting on the above date, and upon a motion by C. Korsores and second
by S. Kevlahan a vote was taken with regard to a waiver of the Watershed Special Permit. The
vote was 5-0, unanimous in favor of the waiver.
Jean Enright
On Behalf of North.Andover Planning Board
Eitan Goldberg
John Simons
Peter Boynton
Sean Kevlahan
Chris Koskores
2
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Long-Term. Stormwater
Operation & Maintenance Plan
135 S Bradford. St, North Andover
Current Owners: Carolyn and James Zimmer
Responsible Parties for 0&M: James Zimmer
Beginning with the construction of the drainage system, and continuing in perpetuity thereafter, the owner(s)
of the site shall maintain in accordance with the following schedule:
a. Roof drain inlets,downspouts,and roof drainpipes - All components of the roof drain collection
system shall be inspected at least 2 tires per year. Sediments and debris shall be removed and
disposed of in accordance with all applicable federal,state,and local laws. Any components that
become damaged shall be repaired or replaced upon discovery to assure proper performance of
stormwater runoff into the drywell systems.Leaves will also be removed from gutters.
b. Infiltration Chambers-The level of water in the infiltration chambers shall be monitored during and
after heavy rainstorms at least twice a year for evidence of clogging or other problems. If water does
not leave the chambers within 72 hours after the storm, or if water breaks out on the surface above
the system, or if the roof collection system begins to overflow frequently(for the 10-year storm
intensity or less intense storms), the infiltration bed is likely clogged. The infiltration bed shall be
cleaned and repaired or replaced as needed to maintain proper functioning.
c. Vegetation (grass)shall be maintained in healthy condition to prevent erosion and
sedimentation in the drainage system.
d, Infiltration Chamber Inspection Port- The inspection port should be opened to complete the water
level inspection and general inspection within the chambers (see item"b" above)
' .October 1.2, 2024
Owner: Date:
Estimated Operation and Maintenance Cost: $0 if performed by owner;$500/yr. if performed by contractor,
Attached:
* Inspection Log
Sketch Plan of Stormwater Inspection Components
* Cultec Operation and Maintenance Guidelines(same guidelines for the infiltrator)
1
135 S Bradford St,North Andover E
Inspection and Maintenance Report Form
To be completed per the Operation and Maintenance schedule
Inspector: Date:
Inspection Checklist
Item:
Roof drams inlets and downspouts
Any signs of sediment or debris at outlets Yes or No (circle one)
Condition of drain inlets/downspouts Good or Poor (circle one)
Any piping need replacement Yes or No (circle one)
Remove leaves from gutters Yes or No (circle one)
Infiltration Chambers
Any signs of water breakout Yes or No (circle one)
Any water in chambers Yes or No (circle one)
If water in chamber, is it empty after 72 hrs. Yes or No (circle one)
Vegetation
Does site vegetation, including grass loop health Yes or No (circle one)
Inspection Port
Did inspection port open Yes or• No (circle one)
Is Inspection port in good condition Yes or No (circle one)
Additional Notes or Corrective measures taken:
SKETCH PLAN OF OPERATION & MAINTENANCE
ITEMS a d REFER TO NOTATION OF MAINTENANCE SCHEDULE ON PAGE -1.
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SOUTH BRADFORD STREET
R-t 69.83 (PUBLIC WIDTH VARIES)
OPERATIONS 1 • MAINTENANCE GUIDELINES
Published by
CULTEC
P.O. Box 280
878 Federal Road
Brookfield, Connecticut 06804 USA
www.cultec.com
Copyright Notice
O 2023 CULTEC All rights reserved. Printed in the USA.
This document and any accompanying CULTEC products are copyrighted by CULTEC. Any reproduction
and/or distribution without prior written consent from CULTEC Is strictly prohibited,
Disclaimers:
The drawings, photographs and illustrations shown In this document are for illustrative purposes only and
are not necessarily to scale.
Actual designs may vary.
CULTEC reserves the right to make design and/or speciflcation changes at any time without notice at
CULTEC's sole discretion.
CULTEC,the CULTEC logo, RECHARGER, CONTACTOR, HVLV, PAC,STORMI=TLTER,STORMGENIE and The
Chamber with The Stripe are registered trademarks of CULTEC.
Chamber of Choice, HD, 100, 125, 150, 150XL, 180, 280, 330, 330XL, 360, V8, 902, Field Drain Panel,
C-1, C-2, C-3, C-4, EZ-24, Landscape Series are trademarks of CULTEC. O Copyright on all drawings,
Illustrations, photos, charts - CULTEC. All rights reserved.
Protected by one or more of the following patents owned by Cultec:
U.S. Patents 6,129,482; 6,322,288, 6,854,925; 7,226,241; 7,806,627; 8,366,346; 8,425,148; U.S.
Designs D613,819; D638,095; D668,318, Canadian Patent 2,450,565; 2,591.,255; Canadian Designs
129144; 135983; 159073; 160977; and/or other U.S. or Foreign Patent(s) or Patent(s) Pending.
Contact Information:
For general Information on our other products and services, please contact our offices within the United
States at (800)428-5832, (203)775-4416 ext. 202, or e-mail us at CT-CustomerService@cultec.com.
For technical support, please call (203)775-4416 ext. 203 or e-mail CT-Tech@cultec.com.
Visit www,cultec.com/downloads.html for Product Downloads and CAD details.
Doc ID: CLT057 11-23
November 2023
These Instructions are forsingle-layer traffic applications only. For multi layerapplicatlons, contact CULTEC.
All illustrations and photos shown herein are examples of typical situations, Be sure to follow the engineer's drawings.
Actual designs may vary.
For more Information,contact CULTEC at(203)775-4416 or visit www.cultec.com.
p CULTEC CLT057 11-23
CULTEC STORMWATER CHAMBERS
This manual contains guidelines recommended by CULTEC and may be used In conjunction with, but not to supersede,local
regulations or regulatory authorities, OSHA Guidelines must be followed when inspecting or cleaning any structure.
i
Introduction
The CULTEC Subsurface stormwater Management System Is a high-density polyethylene (HDPE) chamber system
arranged in parallel rows surrounded by washed stone. The CULTEC chambers create arch-shaped volds within
the washed stone to provide stormwater detention, retention, infiltration, and reclamation. Filter fabric is placed
between the native soil and stone interface to prevent the Intrusion of fines Into the system. In order to minimize
the amount of sediment which may enter the CULTEC system, a sediment collection device (stormwater pretreat-
ment device) is recommended upstream from the CULTEC chamber system. Examples of pretreatment devices
include, but are not limited to, an appropriately sized catch basin with sump, pretreatment catchment device, all
grit separator, or baffled distribution box. Manufactured pretreatment devices may also be used in accordance
with CULTEC chambers. Installation, operation, and maintenance of these devices shall be in accordance with
manufacturer's recommendations. Almost all of the sediment entering the stormwater management system will
be collected within the pretreatment device.
Best Management Practices allow for the maintenance of the preliminary collection systems prior to feeding the
CULTEC chambers. The pretreatment structures shall be inspected for any debris that will restrict Inlet flow rates.
Outfall structures, if any, such as outlet control must also be Inspected for any obstructions that would restrict
outlet flow rates. OSHA Guidelines must be followed when Inspecting or cleaning any structure.
Operation and Maintenance Requirements
I. Operation
CULTEC stormwater management systems shall be operated to receive only stormwater run-off In
accordance with applicable local regulations. CULTEC subsurface stormwater management chambers
operate at peak performance when Installed In series with pretreatment. Pretreatment of suspended
solids is superior to treatment of solids once they have been Introduced into the system. The use of
pretreatment is adequate as long as the structure Is maintained and the site remains stable with finished
Impervious surfaces such as parking lots,walkways, and pervious areas are properly maintained. If there
is to be an unstable condition, such as Improvements to buildings or parking areas, all proper slit control
measures shall be Implemented according to local regulations.
II. Inspection and Maintenance Options
A. The CULTEC system may be equipped with an Inspection port located on the Inlet row.
The inspection port Is a circular cast box placed in a rectangular concrete collar. When the lid Is
removed, a 6-Inch (150 mm) pipe with a screw-in plug will be exposed. Remove the plug. This
will provide access to the CULTEC Chamber row below. From the surface,through this access, the
sediment may be measured at this location. A stadia rod may be used to measure the depth of
sediment if any In this row. If the depth of sediment Is In excess of 3 Inches (76 mm),, then this
row should be cleaned with high pressure water through a culvert cleaning nozzle. This would be
carried out through an upstream manhole or through the CULTEC Storm Filter Unit (or other pre-
treatment device), CCTV inspection of this row can be deployed through this access port to deter
mine if any sediment has accumulated In the Inlet row.
B. If the CULTEC bed is not equipped with an inspection port, then access to the inlet row will be
through an upstream manhole or the CULTEC StormFliter.
1. Manhole Access
This Inspection should only be carried out by persons trained In confined space entry and sewer
Inspection services. After the manhole cover has been removed a gas detector must be lowered
Into the manhole to ensure that there are not high concentrations of toxic gases present. The
inspector should be lowered into the manhole with the proper safety equipment as per OSHA
requirements. The inspector may be able to observe sediment from this location. If this Is not
possible, the Inspector will need to deploy a CCTV robot to permit viewing of the sediment.
For more information,contact CULTEC at(203) 775-4416 or visit www.cultec.com. 3
(D CULTEC CLT057 11-23
i
I
OPERATIONS AND MAINTENANCE GUIDELINES
2. Storm Fliter Access
Remove the manhole cover to allow access to the unit. Typically a 30-inch (750 mm) pipe Is i
used as a riser from the StormFilter to the surface. As in the case with manhole access, this
access point requires a technician trained in confined space entry with proper gas detection
equipment. This individual must be equipped with the proper safety equipment for entry Into the
StormFliter. The technician will be lowered onto the StormFliter unit.The hatch on the unit must
be removed. inside the unit are two filters which may be removed according to StormFllter
maintenance guidelines. Once these filters are removed the Inspector can enter the StormFliter
unit to launch the CCTV camera robot.
C. The Inlet row of the CULTEC system is placed on a polyethylene liner to prevent scouring of the
washed-stone beneath this row. This also facilitates the flushing of this row with high pressure
water through a culvert cleaning nozzle. The nozzle Is deployed through a manhole or the
StormFliter and extended to the end of the row.The water is turned on and the Inlet row Is
back-flushed into the manhole or StormFliter. This water Is to be removed from the manhole or
StormFliter using a vacuum truck.
ITT. Maintenance Guidelines
The following guidelines shall be adhered to for the operation and maintenance of the CULTEC stormwater
management system:
A. The owner shall keep a maintenance log which shall Include details of any events which would
have an effect on the system's operational capacity.
B. The operation and maintenance procedure shall be reviewed periodically and changed to meet site
conditions.
C. Maintenance of the stormwater management system shall be performed by qualified workers and
shall follow applicable occupational health and safety requirements.
D. Debris removed from the stormwater management system shall be disposed of In accordance with
applicable laws and regulations.
IV. Suggested Maintenance Schedules
A. Minor Maintenance
The following suggested schedule shall be followed for routine maintenance during the regular
operation of the stormwater system:
Monthly In first year Check Inlets and outlets for clogging and remove any debris, as required.
Spring and Fall Check Inlets and outlets for clogging and remove any debris, as required.
One year after commissioning and every third Check Inlets and outlets for clogging and remove any debris, as required.
year following
B. Major Maintenance
The following suggested maintenance schedule shall be followed to maintain the performance of
the CULTEC stormwater management chambers. Additional work may be necessary due to
Insufficient performance and other issues that might be found during the Inspection of the
stormwater management chambers. (See table on next page)
4 For more information,contact CULTEC at(203)775-4416 or visit www.caltec.com.
0 CULTEC CLT057 11-23
i
I
CULTEC STORMWATER CHAMBERS
i
Inlets and Outlets Every 3 years • 7cleaned
ocumentation that the inlets, outlets and vents have been
and will function as Intended,
Spring and Fall Check Inlet and outlets for clogging and remove any debris as re-
quired.
CULTEC Stormwater 2 years after commis- • Inspect the Interior of the stormwater management chambers
Chambers stoning through Inspection port for deficiencies using CCTV or comparable
technique.
• Obtain documentation that the stormwater management chambers
and feed connectors will function as anticipated.
i
9 years after commis- + Clean stormwater management chambers and feed connectors of
stoning every 9 years any debris.
following
• Inspect the Interior of the stormwater management structures for
deficiencies using CCTV or comparable technique.
• Obtain documentation that the stormwater management chambers
and feed connectors have been cleaned and will function as Intend-
ed.
45 years after com- • Clean stormwater management chambers and feed connectors of
missioning any debris.
• Determine the remaining life expectancy of the stormwater man-
agement chambers and recommended schedule and actions to reha-
biiitate the stormwater management chambers as required.
• Inspect the Interior of the stormwater management chambers for
deficiencies using CCTV or comparable technique.
• Replace or restore the stormwater management chambers In accor-
dance with the schedule determined at the 45-year inspection.
• Attain the appropriate approvals as required,
• Establish a new operation and maintenance schedule.
Surrounding Site Monthly In 1+tyear 0 Check for depressions In areas over and surrounding the stormwater
management system.
Spring and Fail • Check for depressions in areas over and surrounding the stormwater
management system.
Yearly + Confirm that no unauthorized modifications have been performed to
the site.
For additional Information concerning the maintenance of CULTEC Subsurface stormwater Management Chambers, please
contact CULTEC at1-800-428-5832.
For more Information,contact CULTEC at(203)775-4416 or visit www.cultec.com.
p CULTEC CLT057 11-23
I
OPERATIONS AND MAINTENANCE GUIDELINES
- 1
i
WQMP
Operation & Maintenance (O&M) Plan
Project Name:
Prepared for:
Project Name:
Address:
City, State Zip:
Prepared on:
Date:
6 For more information,contact CULTEC at(203)775-4416 or visit www,cultee,com,
O CULTEC CLT057 11-23
CULTEC STORMWATER CHAMBERS
This O&M Plan describes the designated responsible party for Implementation of this WQMP, Including: operation
and maintenance of all the structural SMP(s), conducting the traln€ng/educational program and duties, and any
other necessary activities. The O&M Plan includes detailed inspection and maintenance requirements for all struc-
tural BMPs, Including copies of any maintenance contract agreements, manufacturer's maintenance requirements,
permits, etc.
8.1.1 Project Information
Project name
Add Tess
City, State Zip
Site size
List of structural BMPs, number of each
Other notes
8.1.2 Responsible Party
The responsible party for Implementation of this WQMP Is:
Name of Person or HOA Property Manager
Address
City, State Zip
Phone number
24-Hour Emergency Contact number
Email
8.1.3 Record Keeping
Parties responsible for the O&M plan shall retain records for at least 5 years.
All training and educational activities and BMP operation and maintenance shall be documented to verify compli-
ance with this O&M Plan, A sample Training Log and Inspection and Maintenance Log are included In this docu-
ment.
8.1.4 Electronic Data Submittal
This document along with the Site Plan and Attachments shall be provided In PDF format. AutoCAD files and/or
GIS coordinates of BMPs shall also be submitted to the City.
For more Information,contact CULTEC at(203)775-4416 or visit www.cultec.com.
Q CULTEC CLT057 11-23
OPERATIONS AND MAINTENANCE
Appendix
BMP SITE PLAN
Site plan is preferred on minimum 11"by 17"colored sheets, as long as legible.
For more Information,contact CULTEC at(203)775-4416 or visit www.cultec.com.
0 CUTEC UT057 11-23
CULTEC STORMWATER CHAMBERS
ULTE
BMP OPERATION & MAINTENANCE LOG
i
Project Dame;
Today's Date:
Name of Person Performing Activity (Printed);
Signature:
For more information,contact CULTEC at(203)775-4416 or visit www.cultec.corn.
0 CULTEC CLT057 11-23
i
OPERATIONS AND MAINTENANCE GUIDELINES
Minor Maintenance
Monthly in first year Check Inlets and outlets for clogging and Fremove any debris, as required,
i
❑ Month 1 Date:
❑Month 2 Date:
❑ Month 3 Date:
n Month 4 Date
❑Month 5 Date:
❑ Month b Date:
a Month 7 Date:
❑ Month a Date:
❑ Month 9 Date:
a Month 10 Date:
❑ Month 11 Date:
❑ Month 12 Date:
Spring and Fall Check Inlets and outlets for clogging and remove any debris, as required.
Notes
❑Spring Date:
n Fall Date:
❑Spring Date:
❑ Fall Date:
❑Spring Date:
n Fall Date:
❑ Spring Date:
n Fall Date:
❑ Spring Date:
rr Fall Date:
❑ Spring Date:
n Fall Date:
one year after commissioning Check inlets and outlets for clogging and remove any debris, as required,
and every third year following Notes
•Year 1 Date:
€a Year 4 Date:
•Year 7 Date:
❑Year 10 Date:
n Year 13 Date:
•Year 16 Date:
•Year 19 Date:
❑Year 22 Date:
® For more information,contact CULTEC at(203)775-4416 or visit V"VW,cultec.com.
p CULTEC CLT057 11-23
CULTEC STORMWATER CHAMBERS
Major Maintenance
Every 3 years Obtain documentation that the Inlets,outlets and
vents have been cleaned and will function as intended.
Notes
n Year 1 Date:
•Year 4 Date:
o Year 7 Date:
❑Year 10 Date;
n Year 13 Date:
❑Year 16 Date:
a Year 19 Date:
n Year 22 Date:
M Spring and Fall Check Inlet and outlets for clogging and remove any
C debris,as required.
M
yNotes
tC i o Spring Date:
1 0 Fall Date:
n Spring Date:
n Fall Date: I
I u Spring Date: I
o Fall Date:
o Spring Date: I
c3 Fall Date:
❑Spring Date:
I o Fall Date:
n Spring Date:
❑ Fall Date:
rn 2 years after commissioning E3 Inspect the Interior of the stormwater management
chambers through inspection port for deficiencies using
,!a CCTV or comparable technique.
(a n Obtain documentation that the sto.rmwater manage-
Ument chambers and feed connectors will function as
anticipated.
Notes
u Year 2 Date:
U
Imo-
U
For more information,contact CULTEC at(203)775-4416 or visit www.cuitec,com.
p CULTEC CLT057 11-23
OPERATIONS ANt MAINTENANCE GUIDELINES
Major,Maintenance
9 years after commissioning rj Clean stormwater management chambers and feed
every 9 years following connectors of any debris.
❑ Inspect the Interior of the stormwater management
structures for deficiencies using CCTV or comparable
technique.
❑ obtain documentation that the stormwater man-
agement chambers and feed connectors have been
cleaned and will function as Intended,
Notes
o Year 9 Date,
❑Year 18 Date,
❑Year 27 Date,
uy ❑Year 36 Date,
L
E45 years after commissioning o Clean stormwater management chambers and feed
connectors of any debris.
U
�- ❑ Determine the remaining life expectancy of the
stormwater management chambers and recommended
schedule and actions to rehabilitate the stormwater
management chambers as required.
L
p ❑ Inspect the Interior of the stormwater management
chambers for deficiencies using CCTV or comparable
U technique.
W
n Replace or restore the stormwater management
chambers In accordance with the schedule determined
U at the 45-year Inspection.
❑Attain the approprlate approvals as required.
o Establish a new operation and maintenance sched-
ule.
Notes
❑Year45 Date;
2 For more information,contact CULTIC at(203)775-4416 or visit www.cuitee.corn.
0 CULTEC CLT057 11-23
CULTEC s y s CHAMBERS
Major Maintenance
Monthly in V year ❑ Che7fordepressions in areas over and surround€ng
the ster management system.
Notes .
❑ Month 1 Date;
❑ Month 2 Date:
n Month 3 Date:
❑ Month 4 Date:
❑ Month 5 Date:
❑ Month 5 Date:
❑ Month 7 Date:
❑ Month s Date;
n Month 9 Date:
❑ Month 10 Date:
❑ Month 11 Date:
❑ Month 12 Date:
Spring and Fall ❑ Check for depressions In areas over and surround€ng
the stormwater management system.
❑Spring Date:
�71
❑ Fail Date:
o Spring Date:
E n Fall Date;
n Spring Date;
❑ Fall Date:
❑Spring Date:
❑ Fall Date;
❑Spring Date;
A Fall Date:
❑ Spring Date;
❑ Fall mate:
Yearly n Confirm that no unauthorized modifications have
been performed to the site.
Notes
❑Year Date:
❑Year Date:
❑Year 3 Date:
n Year 4 Date;
❑Year 5 Date:
❑Year Date:
❑Year Date;
For more Information,contact CULTEC at(203) 775-4415 or visit www.cultec.com. 13
a CULTEC CLT057 11-23
i
i
a
CULTEC
878 Federal Road o P.O. Box 280 o Brookfield, CT 06804 USA
P: (203) 775-4416 o Tall Free: 1(800) 4-CULTEC W www.cultec.com
CUITEmC
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