HomeMy WebLinkAboutO&M-3.11.2026
OPERATIONS AND MAINTENANCE PLAN
Project:
Operations and Maintenance Plan
Location:
26 Grandview Road
Site plan
Yarmouth, MA
Prepared for:
Harbour Haven Association, Inc.
Yarmouth, MA 02664
March 11, 2026
Page 2
Operation and Maintenance Plan
A properly operating drainage system is the basis for long life of the roads and parking areas
and for the protection of wetland resources against pollutants carried by stormwater. If the
drainage system fails to work, frequent pooling of stormwater would be expected to occur on
site possibly affecting the use and activities on the property. The owner shall designate a
qualified person who will be responsible for maintenance and operation of drainage system.
A qualified person may consist of a registered professional or personnel trained by a
registered professional for inspecting the specific drainage components at this site. The
attached training form shall be completed and signed by both the professional and trainee.
The owner or designated representative shall maintain a copy of the construction drawings
as means of illustration of the location of the stormwater system, or other drawings depicting
the site with all components of the drainage system location. Only authorized personnel as
described above by the owner shall maintain and operate the drainage system. The Owner is
currently identified as Harbour Haven Association, Inc. Subsequent owners shall be notified
of the O & M requirements upon sale of the property. An approximate annual budget for
operations and maintenance is estimated at $1,000.
The drainage system has been designed with consideration of the use as a residential
community parking area. The owner or designated representative shall implement the
following long-term pollution prevention measures:
1. The drainage system is intended for the interception of rainfall precipitation and
snowmelt runoff. No other discharges shall be allowed within the systems unless
reviewed by the appropriate trade professional for conformance with the design
parameters of the system.
2. Proper road maintenance shall be performed without harming the drainage system.
3. Snow and ice shall be properly managed. Snow or ice removal shall not obstruct the
stormwater inlets and outlets.
4. A contractor who specializes on spill cleanings shall be engaged in the event of spills
into the drainage system. The contractor shall properly clean the affected areas and the
drainage.
To provide for adequate maintenance of the drainage system, the following inspections and
procedures are recommended:
1. Inspect the catch basin and drain manholes after every major storm event (typically a
storm of one inch (1”) of rainfall) and at least two times a year. Inspection will include
noting accumulation of debris at the surface and measuring the depth of silt and
sediment collected within the catch basin.
2. All debris at the catch basin inlet grates shall be removed and properly disposed clearing
the entire surface of the system.
3. If the depth of sediments within the catch basin sump measures less than 12-inches
clearance to the outlet pipe invert, arrange for a contractor to properly remove the
accumulated sediments.
4. If standing water is observed above the catch basin inlet grate 24 hours past a storm
event inspect the system for the presence of clogging or obstruction. If clogging or an
obstacle exists arrange for the system to be cleaned.
Page 3
5. Subsurface Infiltration system to be inspected at least twice a year by accessing the at
grade inspection manhole. Remove any debris that might clog the system.
6. The concrete weir and rip-rap splash pad shall be inspected and/or maintained at least
twice a year and after every storm in which runoff drains through the overflow outlet weir.
Specific items to be inspected shall include: Debris that could clog the weir opening,
trash or sediment in the rip-rap splash pad.
7. The Vegetated Swale shall be inspected at least twice a year and after every storm in
which runoff drains through the overflow weir. Any debris or erosion or lost of plant
material shall be replaced as need.
8. Handling and disposal of oily substances, debris and sediments removed from the
drainage system components during maintenance shall conform to applicable local,
state and federal requirements.
Property Owner Acknowledgement of Operations and Maintenance Requirements
_________________________________________ ____________
Signature Date
Page 4
O & M
INSPECTION AND MAINTENANCE LOG
Inspector : Location: 26 Grandview Road
DATE COMPONENT
(See BMP Plan)
SEDIMENT
DEPTH
COMMENTS
- Existing catch basin
- -
- Existing Subsurface
drainage system
- -
- Concrete Weir
- -
- Rip-Rap Splash Pad
- -
- Vegetated Swale
- -
Page 5
Training Acknowledgement Form
I , ___________________ (qualified professional) hereby certify that I have reviewed the following items
and performed an initial inspection with ___________________ (the trainee – inspector) for the
Stormwater Management System at the 26 Grandview commercial facility.
- Detailed review of the project Site Plans
- Detailed review of the project Operation and Maintenance Plan and maintenance
requirements
- Performed initial inspection with the trainee - inspection of the Deep Sump Catch Basins
- Performed initial inspection with the trainee - inspection of the Subsurface Systems
- Performed initial inspection with the trainee – inspection of the Concrete Weir and Rip-Rap
- Performed initial inspection with the trainee – inspection of the Vegetated Swale
- Completed an inspection report and reviewed the report with the trainee