HomeMy WebLinkAbout20140715 long-term pollution prevention plan - Stormwater Report - 500 GREAT POND ROAD 7/17/2014 Enright, Jean
From: Scott Cameron <scott@morincameron.com>
Sent: Thursday,July 17, 2014 9:32 AM
To: Enright,Jean
Subject: FW: OM
Attachments: Long Term Pollution Prevention Plan.docx
Respectfully,
Scott P. Cameron, P.E.
THE MORIN-CAMERON GROUP, INC. 447 Boston Street, US Route 1, Topsfield, MA 01983
p 1978.887.8586 m 1781.520.9496 f 1978.887.3480 w I www.morincameron.com
Please consider the environment before printing this email!
From: Scott Cameron
Sent: Thursday, July 10, 2014 1:37 PM
To: J hug hes(a)townofnorthandover.com
Subject: OM
Jenn: this is the updated version per the final plans and Lisa's review.
Respectfully,
Scott P. Cameron, P.E.
THE MORIN-CAMERON GROUP, INC. 447 Boston Street, US Route I,Topsfield, MA 01983
p 1978.887.8586 m 1781.520.9496 f 1978.887.3480 w 1 www.morincameron.com
Please consider the environment before printing this email!
i
Long Term Pollution Prevention Plan
for
500 Great Pond Road
North Andover Massachusetts
The following operation and maintenance plan has been provided to satisfy the requirements of
Standard 9 of the MassDEP Stormwater Management Handbook. The success of the Stormwater
Management Plan depends on the proper implementation, operation and maintenance of
several management components. The following procedures shall be implemented to ensure
success of the Stormwater Management Plan:
1. The contractor shall comply with the details of construction of the site as shown on
the approved plans.
2. The catch basins, Bio Retention Area, CDS Water Quality Unit and Forebay/Detention
Basin shall be inspected and maintained as shown in the manufacturer's guidelines
and as indicated below.
3. Effective erosion control measurers during and after construction shall be maintained
until a stable turf is established on all altered areas.
4. The project is subject to an EPA National Pollutant Discharge Elimination System —
Construction General Permit regulations and a Stormwater Pollution Prevention Plan
(NDPES-SWPPP). The plan shalt be implemented at least 14 days prior to the start of
earth disturbance activities.
Basic Information
Stormwater Management System Owner: Mr. Michael Reed
President of the Board of Governors
North Andover Country Club
500 Great Pond Road
North Andover, MA 01845
978-686-0318
North Andover Department of Public Works: Bruce D. Thibodeau, P.E.
Director
384 Osgood Street
North Andover, MA 01845
978-685-0950
North Andover Planning Department: Mr. Curt Bellavance, AICP
Community Development Dir.
1600 Osgood Street
North Andover, MA 01845
978-688-9535
North Andover Conservation Commission: Ms. Jennifer Hughes
Conservation Administrator
1600 Osgood Street
Suite 2035
North Andover, MA 01845
978-688-9530
Erosion and Sedimentation Controls During Construction:
The site and drainage construction contractor shall be responsible for maintaining the
stormwater system during construction. Routine maintenance of all items shall be performed to
ensure adequate runoff and pollution control during construction.
A proposed silt fence will be placed as shown on the proposed plan prior to the
commencement of any clearing, grubbing, and earth removal or construction activity. The
integrity of the erosion control barrier will be maintained by periodic inspection and
replacement as necessary. The erosion control barrier will remain in place until the first course
of pavement has been placed and all side slopes have been foamed and seeded and vegetation
has been established. A silt sack will also be placed over the existing catch basins and the new
catch basin once it is constructed.
Operations and maintenance plans for the Stormwater Management construction phase and
tong term operation of the system have been attached to this report.
General Conditions
1. The property owner shall be responsible for scheduling regular inspections and
maintenance of the stormwater BMP's as detailed in the following long-term pollution
prevention plan and illustrated on the approved design plans:
"Site Development Plan Designed for S00 Great Pond Road, North Andover,
Massachusetts, Sheets E-1, prepared by The Morin-Cameron Group, Inc. dated May 1,
2014 as approved by the North Andover Planning Board.
2. All Stormwater BMP's shall be operated and maintained in accordance with the design
plans and the following Long-Term Pollution Prevention Plan.
3. The owner shall:
a. Maintain an Operation and Maintenance Log (see Attachment A) for the last three years.
The log shall include all BMP inspections, repairs, replacement activities and disposal
activities (disposal material and disposal location shall be included in the log);
b. Make the log available to the North Andover Department of Public Works, Conservation
Commission and Planning Department upon request;
c. Allow members and agents of the North Andover Department of Public Works,
Conservation Commission and Planning Department to enter the premises and ensure
that the Owner has complied with the Operation and Maintenance Plan requirements
for each BMP.
4. A recommended inspection and maintenance schedule is outlined below based on
statewide averages. This inspection and maintenance schedule shall be adhered to at a
minimum for the first year of service of all BMP's referenced in this document. At the
commencement of the first year of service, a more accurate inspection/maintenance
schedule shall be determined based on the level of service for this site.
Long-Term Pollution Prevention Plan (LTPPP)
Vegetated Areas:
Immediately after construction, monitoring of the erosion control systems shalt occur until
establishment of natural vegetation. Afterwards, vegetated areas shall be maintained as
such. Vegetation shalt be replaced as necessary to ensure proper stabilization of the site.
Cost: Included with annual landscaping budget. Consult with local landscape contractors.
Paved Areas:
Sweepers shall sweep paved areas semi-annually during dry weather to remove excess
sediments and to reduce the amount of sediments that the drainage system shall have to
remove from the runoff. The sweeping shall be conducted primarily between March 15t" and
November 15t". Special attention shalt be made to sweeping paved surfaces in March and
April before spring rains wash residual sand into the drainage system.
Cost: $100-$150 per sweeping
Salt used for de-icing on the parking tot during winter months is prohibited in the Ground
Water Overlay District. Sand containing the minimum amount of calcium chloride (or
approved equivalent) needed for handling may be applied as part of the routine winter
maintenance activities.
Catch Basins
The catch basin grates shall be checked quarterly and following heavy rainfalls to verify that
the inlet openings are not clogged by debris. Debris shall be removed from the grates and
disposed of properly. Deep sump catch basins shall be inspected and cleaned quarterly as
needed when accumulated sediments exceed 2' from the bottom of the sump (approximately
1/2 of the sump capacity). Catch basins with hoods shall be inspected annually to check oil
build-up and outlet obstructions. Material shall be removed from catch basins and disposed
of in accordance with all applicable regulations by a licensed hauler.
Cost: Estimated $50 - $100 per cleaning per catch basin as needed. The Owner shall consult
local waste haulers for detailed cost estimates.
Public Safety Concerns: Catch basins shall not be left open and unattended at any time
during inspection, cleaning or otherwise. Broken grates or frames shall be replaced
immediately. At no time shalt any person enter the basin structure unless measures have
been taken to ensure safe access in accordance with enclosed space regulations.
Sediment Forebay Detention Basin:
The sediment forebay/detention basin shall be inspected after every major storm event for
the first 3 months after construction; a major storm event is 3.9 inches of rainfall in a 24 hour
period (5 year storm). Thereafter, the basin shall be inspected twice per year. If the system
does not drain within 72 hours of a rainstorm, the operator shalt inform the design engineer.
Cost: $80041,000 per cleaning of each system. Consult local pumping companies for costs
associated with cleaning of basins if necessary to remove sediment.
Wet Water Quality Swale:
Premature failure of the wet water quality swale is caused by lack of regular maintenance.
Inspect the system regularly for sediment build-up, structural damage and standing water.
Inspect soil and repair eroded areas as needed. Remove litter and debris monthly. Treat
diseased vegetation twice per year in spring and fall. Remove invasive species as needed to
prevent these species from spreading into the wet water quality swale. Snow cannot be
stored in the wet water quality swale. Following is a schedule of the required maintenance
activities along with their frequency of occurrence:
Activity Time of Year Frequency
Inspect & remove trash Year Round Monthly
Remove Dead Vegetation Fall or Spring Annually
Replace Dead Vegetation Spring Annually
Prune Spring or Fall Annually
Costs: The owner shall consult a local landscaping contractor for details.
Pocket Wetland/Bio retention Basin:
Inspect the pocket wetland twice per year for the first three years during both the
growing and non-growing seasons. During these inspections, record and map the
following information:
• The types and distribution of the dominant wetland plants in the wetland.
• The presence and distribution of planted wetland species.
• The presence and distribution of invasive wetland species (invasive species must
be removed).
• Indications that other species are replacing the planted wetland species.
• Percentage of standing water that is unvegetated.
• Stability of the original depth zones and the mirco-topographic features.
• Accumulation of sediment and survival rate of plants (dead plants must be
replanted)
Any slope erosion within the facility shall be stabilized and repaired as soon as practical.
The outlet structure and embankment shall be inspected annually for structural integrity.
The inspections shall be conducted by qualified personnel. Inspect and remove
accumulated debris from the outlet structure on a quarterly basis.
Sediment dredging within the pocket wetland may be required every 10-years
depending on use.
Debris & Litter:
All debris and litter shall be removed from the parking area as necessary to prevent
migration into the drainage system.
Pesticides Herbicides and Fertilizers:
Pesticides and herbicides shall be used in accordance with the Ground Water Protection
Overlay District regulations of the Zoning Bylaw as amended from time to time. Fertilizers
shalt be restricted to the use of organic fertilizers only. All fertilizers, herbicides, pesticides,
and the like shall be stored in a dry area that is protected from weather.
Cost: Included in the routine landscaping maintenance schedule. The Owner shall consult
local landscaping contractors for details.
Public Safety Concerns: Chemicals shall be stored in a secure area to prevent children from
obtaining access to them. Any major spills shall be reported to municipal officials.
Snow Storage and Removal:
Snow storage areas are designated on the approved design plans. Snow shall only be stored
in designated areas. In heavy snow seasons, snow shall be removed from the property and
disposed of in accordance with applicable regulations and a certified snow disposal site. The
owner shall be responsible for informing snow removal contractors of the location for snow
storage areas on the property.
Cost: Annual snow removal budget to be established by the Owner. The Owner shalt consult
local snow removal contractors for details.
Prevention of Illicit Discharges:
Illicit discharges to the stormwater management system are not allowed. Illicit discharges
are discharges that are not comprised entirely of stormwater. Pursuant to MassDEP
Stormwater Standards the following activities or facilities are not considered illicit discharges:
firefighting, water line flushing, landscape irrigation, uncontaminated groundwater, potable
water sources, foundation drains, air conditioning condensation, footing drains, individual
resident car washing, flows from riparian habitats and wetlands, dechlorinated water from
swimming pools, water used for street washing and water used to clean residential building
without detergents.
To prevent illicit discharges to the stormwater management system the following policies
should be implemented:
1. Provisions For Storing Materials and Waste Products Inside or Under Cover
2. Vehicle Maintenance and Washing Controls
3. Requirements for Routine Inspections of the Stormwater Management System (ie:
catch basins, proprietary treatment unit & subsurface infiltration system.)
4. Spill Prevention and Response Plans.
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