HomeMy WebLinkAbout2001-06-21 O & M Plan Revised 5/5/99 6 I
DRAINAGE FACILITIES
OPERATIONAL AND MAINTENANCE PLAN
MAY 5, 1999
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740 TURNPIKE STREET
ROUTE 114
NORTH ANDOVER, MASSACHUSETTS
OWNER: ATLANTIC REALTY TRUST
MR. THOMAS LAUDANI, TRUSTEE
733 TURNPIKE STREET, SUITE 158
NORTH ANDOVER, MA 01845
PARTY RESPONSIBLE FOR 0 &M:
ATLANTIC REALTY TRUST
MR THOMAS LAUDANI, TRUSTEE
733 TURNPIKE STREET, SUITE 158
NORTH ANDOVER, MA 01845
(978) 470-8257
A. SHORT TERM MAINTENANCE PROGRAM DURING CONSTRUCTION
1. A site inspection shall be performed by a P.E. during the construction of the grading and
drainage facilities and those improvements shown on the plan which will have an impact on
the wetlands at least once every week during the applicable construction. Inspections shall
not be required during periods of inactivity to these facilities. A report shall be generated
and forwarded to the North Andover Conservation Commission after each inspection.
2. Care shall be taken at all times to control erosion and sediment movement by the use of
compaction of disturbed areas and the use of hay bale/silt fences as shown on the plan, and
per the earth stockpile plan. Other than erosion, no pollutant discharges are expected
during construction,
3. The contractor shall ensure that all runoff is collected in the appropriate structures as they
are constructed and that uncontrolled runoff is kept to a minimum. The contractor shall
protect the safety of the personnel on site by installing grates or covers on each drainage
structure when it is built.
4. Upon substantial completion of the drainage facilities a final inspection shall be performed
by the P.E. and a report issued to the North Andover Conservation Commission.
MERRIMACK ENGINEERING SERVICES,INC. 66 PARK STREET ANDOVER,MASSACHUSEITS 01810
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5. Upon scheduling of and then successful establishment of the wetland replacement and land
restoration areas an inspection shall be performed with an agent of the North Andover
Conservation Commission and a report indicating that the construction and establishment
of these areas are insubstantial conformance to the plans and Order of Conditions shall be
presented to the North Andover,Conservation Commission.
6. Partial Certificates of Compliance may be granted by the North Andover Conservation
Commission during construction of the project upon a written request for each identified
unit or phase.
7. A final Certificate of Compliance may be granted by the North Andover Conservation
Commission which shall be considered the commencement of the maintenance program.
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MERRIMACK ENGINEERING SERVICES,INC. 66 PARK STREET ANDOVER,MASSACHUSETTS 01810
LONG TERM MAINTENANCE PROGRAM
1. On or about every May 1 and November 1 of each year a site inspection shall be
performed by a registered professional engineer (P.E.) of the Commonwealth of
Massachusetts to report on the status of the drainage features and impact to wetland
areas, if any. The inspector will schedule the inspection with the responsible parties 48
hours prior to the inspection so arrangements can be made to access all manholes,
including if necessary, roping off of parking spaces to assure manhole access. This
report shall include the name, address and telephone number of the owner of the
drainage facilities, the names, address and telephone numbers of parties responsible for
the operation and maintenance of the drainage facilities, and an outline of remaining
funds in the line item of the budget for drainage maintenance. The report shall also
identify the current status of the drainage facility. The inspection shall include a visual
inspection of each drainage structure including the catch basins, manholes, subsurface
detention facilities, headwalls and end sections, buffer planting and concrete outlet
structures, BMP's and any other structure or condition relating to the long term
operation of the drainage facilities. The report shall outline any observed pollution, if
other than normal sand and oil runoff from parking lot use.
2. The parking lot shall be power swept on the entire site at least monthly, and the
sweepings disposed of off-site by the sweeping contractor.
3. Three times per year, April 1, July 1, and November 1, the fossil Filter supplier and/or
approved installer, shall inspect the five (5) fossil filters and replace or repair filters,
screens and inserts. Replaced filters shall be disposed of properly. A report shall be
provided to the inspector(P.E.), and the Conservation Agent, as to the condition of
each fossil filter and which components, if any, were replaced.
4. On or about October 15 of each year a Landscape Contractor shall complete the
cleaning out of any debris in the non-catchbasin drainage structures or drainage pipes
and shall prepare a short written report of the work performed to be submitted to the
inspector (P.E.) for inclusion in his report. He will also inspect the buffer planting area
and replant any dead vegetation. He shall report the replanting to the Conservation
Agent,
5. Once every year from the date of commencement, on or about September 1, the catch
basins shall be thoroughly cleaned by mechanical and/or manual means to remove any
debris and settlement.
6. Once every year from the date of commencement, usually in the spring, a Landscape
Contractor shall regrade, reloam and reseed or stabilize any areas which have eroded or
developed sediment or which have developed conditions not shown on the plans. A
written report of such activities shall be presented to the inspector for inclusion in his
report.
MERRIMACK ENGINEERING SERVICES.INC. • 66 PARK STREET + ANDOVER,MASSACHUSETTS 01810
7. If the inspector reports that work needs to be done to maintain any facility then the
work must be completed within the next 12 weeks, unless otherwise specified, the
condition of which shall be reported in the inspector's next report.
8, Snow, after plowing, which is stockpiled, shall be removed from the site within 24
hours of plowing. Sand only and no de-icing compounds or chemicals shall be used for
de-icing.
9. All check valves (8" backwater flush valve) associated with the subsurface drainage
facilities shall be inspected and maintained three (3) times per year (April 1, July 1, and
November 1).
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MERRIMACK ENGNEERING SERVICES,INC. 66 PARK STREET ANDOVER.MASSACHUSETTS 01810