HomeMy WebLinkAbout2016-09-20 O & M for Stormwater Mgmnt System N ETTTS
OPERATION AND MAINTENANCE PROGRAM
for
EXISTING STORMWATER MANAGEMENT SYSTEM
Cacated at
1600 OSGOOD STREET
NORTH ANDOVER, MASSACHUSETTS
Applicant:
N ETTTS
1600 Osgood Street
North Andover, Massachusetts 01845
Prepared by:
Meridian Associates, Inc.
500 Cummings Center, Suite 5950
Beverly, Massachusetts 01915
(978) 299-0447
AUGUST 19, 2016
REVISED
SEPTEMBER 15, 2016
Project Name: NETTTS
Owner Name: Ozzy Properties, Inc.
1600 Osgood Street
North Andover, Massachusetts 01845
Party Responsible for Maintenance: NETTTS
Long-Term Inspection and Maintenance_Measures
Erosion Control
Eroded sediments can adversely affect the performance of the stormwater
management system. Eroding or barren areas should be immediately re-vegetated.
Inspection and Maintenance of Catch Basins
The catch basins shall be inspected four (4) times per year and at the end of the
foliage and snow removal seasons, and if necessary, any maintenance shall be
performed so that it functions as designed. The basins shall be cleaned when
sediment in the bottom of the sump reaches within 2" of from the bottom of the
invert of the lowest pipe in the basin. Inlet and outlet pipes should be checked for
clogging. The performance of the basins shall be checked after every major storm
event (2-year storm/ 3.1 inches in a 24-hour period. All catch basins within the
NETTTS leased area shall be cleaned prior to the installation of the eliminator
and/or catch basin insert. All catch basins with the eliminator hood shall be vacuum
cleaned once annually to remove floatable oil, grease and sediments.
Debris and Litter Removal
Trash may collect in the BMP's, potentially causing clogging of the facilities. All
debris and litter shall be removed when necessary. Sediment and debris collected
from vacuuming and/or sweeping should be disposed of at a permitted waste
disposal facility. Avoid disposing of this material on site.
Spill Reaction
See Exhibit B "Diesel Direct "On-Site Diesel Refueling""
Truck Washing
All trucks shall be washed off-site.
Fueling
All fueling shall be conducted in the designated fueling area within the southern
NETTTS lease area in accordance with the attached protocol.
Vehicle Maintenance
Vehicle Maintenance shall be performed offsite.
Flexstorm Inlet Filter
Inspect Flexstorm system inlet and filter a minimum of 4 times per year. Remove
filter bags with a "universal removal tool' and empty them when they are half full.
See Exhibit C "Flexstorm Inlet Filter Specifications and Work Instructions"
Parking Lot Sweeping
NETTTS leased areas and snow storage areas shall be swept annually in the
springtime.
See the attached plan entitled "NETTTS BMP Plan" prepared for NETTTS by
Meridian Associates dated August 19, 2016, Revised September 15, 2016.
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Exhibit A
Applicant's Certification
I certify under penalty of law that I have read, understand and agree to abide
by the practices outlined in this document.
Signed: Date:
N ETTTS
DIESEL DIRECT
"On-Site Diesel Refueling"
PROCEDURES REACTING TO A SPILL
1st—DON'T PANIC
Immediate response maneuvers:
• Identify the source of the fuel leak.
• Stop the flow of fuel.
• If the fuel nozzle fails to shut off, close the quarter turn valve located on the hose.
• If the hose ruptured then press the "End"button on the handheld delivery screen to close
the valves.
• As an additional back up precaution, shut off the meter valve in the event the MidCorn
didn't adequately shut down the PTO (the Emergency Shut-Off switch next to the
driver's door shall also be closed).
Containment of the spill:
• If possible use the fuel hose as a barrier to prevent further spread of the spill.
• Immediately go to the side compartment to collect the spill containment equipment.
• Use Speed Dry to create/strengthen the dam/barrier to prevent further spread of the spill.
• You need to work from the outer most point of the spill first, with speedy dry, and work
inward. The rate of fuel spread will always be greatest on a downward slope. It is very
important to get in front of the spread.
• Protect and cover any kind of drains, ditches or catch basins. Be sure to use drain covers
which are located in your side compartment.
Once the spill is contained:
• Call your supervisor immediately.
• Follow your supervisor's further instructions in the containment and cleanup of the spill,
while waiting for the supervisor to arrive on-site.
• Protect the spill area from traffic to prevent further spread of the spill.
Cleaning up the spill:
• Start applying oil absorption pads to the fuel.
• In the event you run short of oil absorption pads,you can wring out some of the absorbed
fuel and drain the waste into your supplied containment bucket, and rouse the pads.
• When all pooled fuel is absorbed by the pads, be sure to have placed all used pads into
the containment bucket.
• Start applying more Speedy Dry to the spill. Work the Speedy Dry into the spill area
with the supplied broom. The motion should be back and forth,working the Speedy Dry
into the area.
• Sweep up all contaminated material and place it into the containment bucket.
• All containment material should have been placed into the containment bucket and stored
back onto the fuel truck to make sure all material is removed from the site.
• Do not leave the scene until you have been cleared by your supervisor.
Supervisor Duties:
• Upon arrival will assist in the cleanup and or assess the completion of the cleanup.
• Will make a personal follow up visit to the spill the next day to inspect the spill scene and
perform any secondary cleanup that may be required.
• Log an accident report with all of the facts and probable causes. This report will be filed
in the corporate and driver's files.
• Upon a second visit speak with the customer and make sure that they are satisfied with
the cleanup.
Review—Why Spills Occur
The number one reason that spills occur is because of driver error. More specifically is the lack
of attention at the nozzle. Automatic shut offs are provided to lower driver fatigue. Our
procedure manual and federal laws require that all automatic nozzles used for dispensing fuel
must always be attended by the operator. However, because of human nature being what it is,
drivers will on occasion believe that they can perform another chore while the nozzle is set on
automatic. If a driver is standing next to the nozzle and a spill occurs because of a faulty shut
off,then the spill will be very minor in nature. The distance that the driver is from an unattended
failed nozzle will determine the size of the spill.
Another type of spill that involves the nozzle is when the nozzle is not firmly inserted into the
tank and it pops out when the tank is almost full. The resulting spill is usually one that involves
the hose being whipped around the truck and ground before the driver can gain control and stop
the flow of fuel.
On occasion,the swivel joint attached to the nozzle will snap because of repeated stress placed
on it from pulling the hose,using the nozzle as a handle. The resulting spill is the same as if the
nozzle popped out of the tank.
The worst case scenario of a driver caused spill is when a driver pulls the hose fast and hard, and
the hose completely separates from the reel. Being aware of when the hose is almost completely
pulled out will prevent this type of accident fiom occurring.
Over time,the continued rubbing of the hoses over asphalt and concrete surfaces causes abrasion
of the rubber outer skin and wear right through to the fabric underlayment. Daily inspection of
the hose usually detects the wear and the hose can be sectioned or replaced before the leak
occurs. The resulting failure of a hose is usually a pinhole that sprays fuel in a fan pattern.
Fortunately, a pinhole leak in a hose, while placing the truck out of service, generally causes
more of a "nuisance"type of spill that needs clean up attention without much consequence.
Sum mar
1. CONTAIN—STOP THE FLOW OF FUEL IMMEDIATELY AND CONTAIN THE
SPILL BEFORE IT CAN REACH A STORM DRAIN OR WETLANDS.
2. CALL—ONCE THE SPILL IS CONTAINED, IMMEDIATELY CALL YOUR
SUPERVISOR. HE WILL ADVISE YOU OF YOUR NEXT PROCEDURE.
3. CLEAN UP—A DIESEL DIRECT SPILL TEAM WILL COME TO THE SITE AND
EXECUTE THE CLEAN UP, DRIVERS ARE NOT TO LEAVE THE SITE BEFORE
THE TEAM ARRIVES, AND THEN ONLY IF THE TEAM LEADER DOES NOT
NEED THE DRIVERS ASSISTANCE.
Each spill needs to have its cause identified for corrective measures/actions to prevent further
spills of its kind. Each incident will be addressed at the next scheduled drivers meeting to
promote caution and awareness.
.
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DIESEL m�rm�����wm
Fueling Procedure
To fuel (off-load fuel)from a Diesel Direct truck the driver must adhere to the following:
Prior to the first fueling of the shift:
1- The spill kit shall be checked to ensure adequate supply.
2' The hose shall be checked for cuts,tears, etc,
3- All valves shall be checked to assure they are closed and there are noleaks.
On-site&ready tofuel:
1' The site shall be evaluated for any drains or other environmental hazards. Any
dm|n(s)shall becovered.
2' The fueling truck tires shall bechocked.
Fueling:
1- Using two hands the driver will pull the hose to the piece of equipment to be fueled.
2- The driver will check around the truck to be fueled to assure that there are no leaks.
3- After removing the fuel cap,the driver will open the quarter turn valve to allow the
flow of fuel and commence fueling.
4- The driver must keep his hand on the fueling nozzle while dispensing fuel.
5' After the tank iu full the driver will close the quarter turn valve& replace the fuel
cap.
Post-Fueling:
1, Make sure all valves are closed &fuel nozzle is properly stored nn the truck.
2- Verify that there are no leaks nrspills.
]- Remove the chock blocks from the truck tires.
.
FLO RM
FLEXSTORMTM Inlet Filter Specifications and Work Instructions
Product: FLEXSTORM Inlet Filters
Manufacturer: Inlet @^ Pipe Protection, Inc
^4 subsidiary of Advanced Drainage Systems (4[$S)
1'0 Description ofWork:
1.1 The work covered shall consist Ofsupplying, installing, and maintaining/cleaning Vfthe
FLEXST[JRK4 Inlet Filter assembly. The purpose of the FLEXSTORW1 Inlet Filter system is to
collect silt and sediment from surface storm water runoff Gt drainage locations shown onthe
plans or as directed by the Engineer. FLEXSTORM PURE, permanent filters, are capable of
removing small particles, hydrocarbons, and other contaminants from drainage "hot spots".
2.0 Material:
2.1 The FLEX8T(]RW1 Inlet Filter system is CO0p[iS8d of corrosion resistant steel frame and m
replaceable geVh8xti|e sediment bag attached bz the frame with m stainless steel |OChiD@ band.
The sediment bag hangs suspended from the rigid frame at a distance below the grate that shall
allow full water flow into the drainage structure if the bag is completely filled with sediment.
2.2 The FLEXSTORM Inlet Filter frame includes lifting handles in addition to the standard overflow
feature. A FLEXSTORM Removal Tool engages the lifting bars or handles to allow manual
removal of the assembly without machine assistance. The frame suspension system onmost
rectangular designs is adjustable in 1/2" increments up to 5" per side GhDU!d the casting or
drainage structure have imperfections.
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4,1" FLO4 M
2.3 FLEXSTORIVI CATCH-IT Inlet Filters for temporary inletprotection: The F[EXST()RM CATCN-
|Tfranl|nAiSga|vanizedorzincp|8t8df0[Oonneionrasiotenua. Thg "FX" VVDV8nPQ|ypnomleng
filter bag |s the design standard, although the "UL" Nonwoven geDteXi|Hia also available |{
preferred by the engineer. These products are tvp|t8||y used for temporary inlet protection
lasting 3 months (short term road work) to5 years (residential deV8|OpQ0eQtS\.
Or
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2.4 FLEXSTORK0 PURE Inlet Filters for permanent inlet protection: The FLE>(ST(]RM PURE
framing is comprised of3O4 stainless Gt98|with o 25 year life rating. K4V|tip|g f||t8[bags are
available: FX, FX+° PC' PC+. ILL and others. The Post Construction "PC+" io the design
standard consisting nf the «FX» Woven Polypropylene sediment bag lined with Adsorb-it filter
hab[iC. which is made from recycled polyester fibers. The uPC+" inC|UdHG 8 r8p|@O8@b|e
hydrocarbon skimmer pouch strapped to the bottom of the bag for advanced TPH removal.
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3.0 Filter Bag Specifications and Capabilities:
KWADS� FLN
3.2 Standard Bag Sizes and Capabilities: Bag Sizes are determined by clear opening dimensions of
the drainage structure. Once frame design size is confirmed, Small -XL bag ratings can be
confirmed to meet design criteria. Ratings below are for standard 22" deep bags.
Solids Storage Filtered Flow Rate Oil Retentim
Standard Bag Size' Capacity at 50%Max(CFS) (Oz)
(CuFt) FX PC IL PC* PCP**
1.6 1.2 0.8 0.9 66 155
2.1 1.8 12 1.3 96 185
3.8 2.2 1.5 1.6 120 209
in 4.2 3.6 2.4 2.6 192 370
4.0 Tested Filtration Efficiency and Removal Rates: Filtration Efficiency, TSS, and TPH testing
performed under large scale, real world conditions at accredited third party erosion and sediment
control testing laboratory. (See Full Test Reports at www.inietfilters.com
Inside View of Hopper With Outlet Pipe Area Inlet Simulated Showing
Hopper Agitator Leading To Area Inlet Influent Discharge From Pipe
4.1 FLEXSTORM "FX" Filtration Efficiency Test Results: All testing performed in general
accordance with the ASTM D 7351, Standard Test Method For Determination of Sediment
Retention Device Effectiveness in Sheet Flow Application, with flow diverted into an area inlet.
Test Soil used as sediment had the following characteristics with a nominal 7% sediment to water
concentration mix. This is representative of a heavy sediment load running off of a construction
site.
Soil Characteristics Test Method Value Filtration Efficiency of"FX"
FLEXSTORM Bag
% Gravel 2
% Sand ASTM D 422 60
% Silt 24
%Clay .14 82%
Liquid Limit, 34
!-...... ASTM D 4318
Plasticity Index..... 9
Soil Classification USDA Sandy Loam
Soil Classification USCS_ Silty Sand (SM)
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4.2 FLEXSTORK8 "PC" and "PC+/' Test Results: T8S measured nn effluent samples in
accordance with SM25#OD and TPH |D accordance with EPA 18H4A`
110 micron Ave Flow %TSS Soil Retention
Product Tested Sediment Load Rate GPM Removal Efficiency
and Clean Water
Street Sweep Particle Size of %TSS Soil Retention
Product Tested Sediment Load Sediment Load Removal Efficiency
Sediment Bag 4000 lbs water (median 200 micron)
Product Tested Hydrocarbon Ave Flow Rate %TPH Oil Retention
Load GPM Removal Eff iciency
motor oil + lube oil
5.0 Identification of Drainage Structures to Determine FLEXSTORM0 Uhmnm Codes:
5.1 The Installer(Contactor) ShoU inspect the p|8De aDd/0rYvOrhSit9 to determine the quantity of each
drainage structure casting type. The foundry casting number Ur the exact grate size and clear
opening size will provide the information necessary to identify the required FLE)(ST(]RK8 Inlet
Filter part number. |n|ad Filters are supplied to the field pre-configured to fit the specified
drainage structure. Item Codes can be built using the FLE>(ST0FiM Product Confi0urmtorot
. Detailed Submittal/Specification drawings are linked h}each Item Code
and available for download by engineers and contractors to include VD plans and/or verify field
inlet requirements. An example of typical drawing is shown below.
MTAM FLN
PLEXSTORM P/Ns 62SHDFX & 6PSHDFXP
HIM INLET TYPE- SQUARE/RECT PRECAST ❑PENIN❑ WITH A SEAT CRATE SUPPORT Al
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P , ALE..PRODUCTS MANUFACTURED
k. RATINGS SHOWN ARE FOR STANDARD PP' BA(, DEPT'HI 'SHORT' 17.' DEPTH BAGS ARE >` BY ItiLET b PIP
PROTECT[pb0,INC
AVAILABLE WITH—S SEYFFI'Xf RATINGS REDUCED BY -:SD%, FL�,p{ A DIVISILMJ OF ADS,INC.
WVV.INLETFELTERS.E:OM
2, THE FOLLOWING REQUIRES ADDITIONAL REVIEW ... 2R 0 P87-0655 PH
SG3D)355-3477 F%
—GRATES WITH EXTENDED BOTTOMS I NFOPINT.ETFILTERS.CDM
ANY OBSTRUCTED MET OPENINGS C HEW ZZ62811aFX A
6.0 Installation Into Standard Grated Drainage Structures:
6.1 Remove the grate from the casting or concrete drainage structure. Clean the ledge (lip) of the
casting frame or drainage structure to ensure it is free of stone and dirt. Crop in the
FLEXSTORM Inlet Filter through the clear opening and be sure the suspension hangers rest
firmly on the inside ledge (lip) of the casting. Replace the grate and confirm it is elevated no
more than 1/8", which is the thickness of the steel hangers. For Curb Box Inlet Filters: Insert
FLEXSTORM CATCH IT Inlet Filter as described above, pull the rear curb guard flap up and
over the open curb box until tight, align magnets to ensure firm attachment to the top portion of
the curb box casting. If the curb back opening is not magnetic, slide a typical rock sack or 2 x 4
through the 2-ply rear curb box flap to create a dam which will direct runoff into the sediment
bag. ig
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7.0 Maintenance Guidelines: The frequency of maintenance will vary depending on the application
(during construction, post construction, or industrial use), the area of installation (relative to grade
and runoff exposure), and the time of year relative to the geographic location (infrequent rain,
year round rain, rain and snow coOd|UVns). The FLE){8TOF|M Operation & Maintenance Plan
(as shown in7.5\ Or other maintenance log should be kept 0nfile.
7,1 Frequency ofInspections: Construction site inspection should occur following each 1/2' Vrmore
rain event. Post Construction inspections should occur three times per year (every four
months) in areas with year round rainfall and three times per year (every three months) in areas
with rainy seasons before and after snowfall season. Industrial application site inspections
(loading ramps, wash racks, maintenance facilities) should occur On a regularly scheduled basis
nV less than three times per year.
7.2 General Maintenance for standard sediment bags: Upon inspection, the FLE>(STORK8Inlet
Filter should be emptied if the sediment bag is more than half filled with sediment and debris, or
88 directed by the Engineer. Remove the grate, engage the lifting bars or handles with the
FLE)<ST[)F|yW RgrnOvo| Tool, and lift the FLE)<STOR[W Inlet Filter from the drainage structure.
Machine assistance |e not required. Dispose 0f the sediment Or debris 88 directed bythe
Engineer. As an alternative, an industrial vacuum may be used to collect the accumulated
sediment ifavailable. Remove any caked on silt from the sediment bag and reverse flush the
bag for optimal filtration. Replace the bag if the QeoteXU/eis torn or punctured bJ1/2"diameter or
greater 0O the lower half Vf the bag, |f properly maintained, the Woven sediment bag will last a
nliniO0U0o of years in the field.
7.3 Inspection and Handling of the FLEXSTORIVI PC/ PC+ post construction sediment bag: The
PC+ sediment bags will collect oil until saturated. Both the Adsorb-it filter liner and the skimmer
pouch will retain oil. The volume nf oils retained will depend 0D sediment bag size. Unlike
other passive oil sorbent products, Adsorb-it filter fabric has the ability to remove hydrocarbons
at high flow rates while retaining 1O'20 times its weight iO oil (weight offabric is 12.8Va/sq
yd\. The average 2' n2' PC Bag contains appn)n .8sqydS. O[ 1ODo0ffabric. At 50Y6
saturation, the average Adsorb-it lined PC filter will retain approximately 75 mz(4.2 |bs) of oil.
Once the bag has become saturated with oils, it can be centrifuged or passed through a wringer
to recover the oi|a, and the fabric reused with 05%to 80% efficacy. If it is detg[OO|Ded` per
Maintenance Contracts or Engineering Instructions, that the saturated PC sediment bags will be
completely replaced, it is the [9SpOn8iUi|itv of the service technician to place the filter medium
and associated debris in an approved container and dispose of in accordance with EPA
regulations. Spent Adsorb-it can be recycled for its fuel value through waste to energy
incineration with a higher BTU per pound value than coal. The oil skimmers start white in color
and will gradually turn brown/black as they become saturated, indicating time for
replacement, The average skimmer pouch will absorb approximately 62 oz (4 lbs) of oil before
requiring replacement, l[O remove the pouch simply unclip it from the swivel strap sewn tothe
bottom of the bag. Dispose of all oil contaminated products in accordance to EPA guidelines,
The ClearTec Rubberizer media used in the pouch, since a solidifier, will not leach under
pressure and can be disposed of in most landfills, recycled for industrial applications, or burned
as fuel.
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7.4 Sediment Bag Replacement: When replacing a Sediment Bag, remove the bag bv loosening or
cutting off the clamping band. Take the new sediment bag, which i8 equipped with 8stainless
steel worm drive clamping band, and use a drill or screw driver to tighten the bag around the
frame channel. Ensure the bag |S secure and that there iono slack around the perimeter nfthe
band. For Oil absorbent boom bags, simply replace the oil boom or pouch when saturated by
sliding it through the mesh support sleeve.
---------- FLO M
7.5 Operation & Maintenance Plan. (Download at www,inieff6Vter .com or www.ad - i e.corn )
FLEXSTORM OPERATION
AND MAINTENANCE PLAN
FL13TMn, �
OF
OPERATION$t MAINTENANCE PLAIN
Installation Instructions:
1.Remove grate from the drainage structure
2.Clean stone and dirt from ledge{lip)of drainage struc-
ture STRUCTURE ID 10CATION:
3.Drop the FLEXSTORM inlet filter through the dear open-
ing such that the hangers rest firmly on the lip of the struc-
ture. DATE TASK PERFORMED INSPECTOR
4.Replace the grate and confirm it is not elevated more
than 1/81,the thickness of the steel hangers.
Frequency of Inspections;
1.inspection should occur following any rain event>W..
2.Post construction Inspections should occur 4 times per
year. In snowfall affected regions additional inspections
should take place before and after snowfall season.
3.tndustriat application she Inspections(loading ramps,
wash racks,maintenance facilities)should occur on a regu-
larly scheduled basis no less than 3 times/year,.
Maintenance Guidelines;
1.Empty the sediment bag if more than half filed with
sediment and debris,or as directed.
2.Remove the grate,engage the lifting bars with the
FLEXSTORM Removal Tool,and lift from drainage structure.
3,Dispose of sediment or debris as directed by the Engi-
neer or Maintenance contract.
4.An industrial vacuum can be used to collect sediment.
5.Remove caked on,..silt from sediment bag and flush with
Medium spray with optimal filtration.
6.Replace bag if tom or punctured to>'A*diameter of
lower half of bag..
Post Construction PC Bae Maintenancez
1.At 50%saturation the average 2'x2'Adsorb-ft lined PC
filter will retain approximately 75 oz(4.2 Ibs)of oil and
should be serviced.To recover the oils the fitter can be
centrifuged or passed through a wringer.
2.Oil skimmer pouches start to turn black when saturated,
indicating time for replacement.Each ClearTec Rubberizer
pouch will absorb-62oz(4lbs)of oil before needing re-
placement
3.Dispose of all oil contaminated products in accordance
with EPA guidelines,ClearTec Rubberizer,since a sofidifier,
wili not leach under pressure and an be disposed of in
most landfills,recycled for industrial applications,or
burned as fuel.
Sedirmill)ltr
1.Remove the bag by loosening or cutting off ciamphig bag.
2.Take new sediment bag and secure worm drive clamping
band to the frame channel.
3.Ensure Bag is secure and there is no stack around perim-
eter.
STORMWATER MANAGEMENT
AFTER CONSTRUCTION
INSPECTION SCHEDULE AND EVALUATION CHECKLIST
PROJECT LOCATION: 1600 Osgood St,North Andover MA WEATHER:
Inspection Required Inspection Follow-up
Date Inspector Area Inspected Frequency if BMP Comments Recommendation Inspection Required
(yes/no)
All Catch Basins in Four times per year and at
NETTTS leased the end of foliage and
areas snow removal seasons and
after major storm events
Eliminator Hood Vacuum cleaned once
Catch Basins annually
Flexstorm Inlet Four times per year,
Filter Catch Basins empty filter bag when half
full
Parking Lot
Sweeping of Once annually in the
NETTTS leased springtime
areas and snow
storage areas
(1) Refer to the Massachusetts Stormwater Handbook, Volume Two: Stormwater Technical Handbook(February 2008)for
recommendations regarding frequency for inspection and maintenance of specific BMP's.
(2) Inspections to be conducted by a qualified professional such as an environmental scientist or civil engineer.
Limited or no use of sodium chloride salts,fertilizers or pesticides recommended.
Other notes: (Include deviations from: Con. Comm. Order of Conditions, PB Approval,Construction Sequence and Approved Plan)
Stormwater Control Manager:
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