36 Hampden St 12-04-2021 Site 3 Planting Plans 3 of 5 Conservation Sig.pdfProposed ConditionsExisting ConditionsScale: 1" = 20'40'0'20'EngineerThe Engineer Group, LLCPO Box 262Chesterfield MA 01012413-626-8167johnw@theengineergroup.com Planting PlansOwnerPioneer Development, LLC32 Perkins AveNorthampton, MA 01060413-320-7208Project36 Hampden StNorthampton, MA570263-7296Page3 of 5Date/Rev: 12 / 11 / 2019Legend:BVW Bordering Vegetated Wetland100FP100 yr Flood Plain BoundaryOSOrnamental ShrubRBRain BarrelDate/Rev: 05 / 26 / 2020Tree Trunk ProtectionPlanting Notes:1) Community garden beds are raised planters with open bottoms..2) See other plans for other details3) Control of knotweed: Knotweed shall be controlled within 15' distance of the buildings, decks, and paved areas by continualmowing, and planting with a mix of grass and herbaceous plant seed, see permanent grass seed mix below. Mowing should bestarted before construction begins, and continue once a week during the growing season, until the knotweed stops emerging fromthe grassed areas. It may take 3 to 5 years to clear the grassed areas of emerging knotweed. Once there is no sign of emergingknotweed within 15' of the buildings during the weekly mowing, the mowing frequency maybe reduced to every two weeks. Atno time during the growing season should mowing stop for longer than 2 weeks. If at any time, the knotweed begins to emerge inareas previously cleared, mowing should resume weekly frequency. Near the boundary of knotweed and grass, down slope fromthe grassed areas, the Knotweed will continue to emerge and try to spread up the slope. Continual cutting of the sprouts willprevent the advance of the plant up the slope. We expect this continual emergent zone to be about 5 to 6 feet from the stand ofknotweed. Equipment for mowing the knotweed should be a mulching type mower. At no time should a mower be used with aside discharge and blown into other areas, which may cause the knotweed to be spread to other un-mowed areas. Stringtrimmers, shears, or hand pulling the plant, should be done around the buildings and in flowerbeds wherever the knotweedemerges. Trimming should follow the same frequency as mowing.4) Planting Grass areas: We propose the entire site, where soil will be left exposed for longer than 30 days, the soil will be graded, and protected with alayer of straw mulch at a rate of 1000lb/acre, or one lb/44sf, with an application of Temporary Grass Seed mix, See temporarygrass seed mix below. the seed should be raked or rolled into the surface of the soil. After construction and soil disturbance is complete, the rear slope of the grassed areas labeled Grass 2 on this plan, will receivean application of a mix of herbaceous plants and grass seeds. See Permanent Seed mix below. This should be done in areas afteremerging knotweed has subsided significantly and a 2 week mowing period has begun. The soul should be lightly raked, andherbaceous seed mix should be applied, and rolled into the surface of the existing grassed areas as well as any remaining bareareas. Periodic watering should be done to help the seeds germinate during dry periods. Watering should not be done to the pointof causing erosion. Bare areas seeded shall have a layer of straw applied as mulch. Permanent seeding should only be done inaccordance with the seed suppliers instructions.5) Grass Seed Mix; Temporary Grass Seed mix: Application from April 1 to September 15: Annual Ryegrass 1 lb/1000sf, and foxtail millet, 0.7 lb/1000 sf. Application fromSeptember 16 to March 31: Winter Rye 3 lb/1000sf. Permanent Grass Seed mix: Apply in spring from April 15 to May 15, or late summer, August 1 to September 1 unless the seed supplier instructs differently.It is suggested the mix designed by New England Wetland Plants Inc, Amherst, MA, Native Seed mix for "New EnglandErosion Control" for moist sites be used, containing; Riverbank Wild Rye (Elymus riparius), Creeping Red Fescue (Festucarubra), Little Bluestem (Schizachyrium scoparium), Big Bluestem (Andropogon gerardii), Switch Grass (Panicum virgatum),Upland Bentgrass (Agrostis perennans), Nodding Bur Marigold (Bidens cernua), Hollow-Stem Joe Pye Weed (Eupatoriumfistulosum/Eutrochium fistulosum), New England Aster (Aster novae-angliae), Boneset (Eupatorium perfoliatum), Blue Vervain(Verbena hastata), Soft Rush (Juncus effusus), Wool Grass (Scirpus cyperinus). Apply at a rate of 1lb/1000 sf.6) Prior to seeding, the upper portion of the lot, north of the buildings shall be maintained with it's existing grade, sloping awayfrom the top of the slope, and disturbed soil.7) Topsoil from the site shall not be stripped in any locations until just prior to the excavation of the area to be disturbed.Tree and Shrub ProtectionFencingDate/Rev: 06 / 25 / 2020Date/Rev: 07 / 07 / 2020Date/Rev: 08 / 29 / 2020Erosion & Sediment Control notes:1) No bulk fill materials will be stored on site unless surrounded at end of each work day with silt fence or Silt Sock.2) A 30 yard or larger dumpster, with on call pickup, shall be placed on the garge slab during construction of the building. The dumpster shallhave a tarp or suitable cover installed when it is not being filled or emptied to prevent debris from blowing into resource areas. The dumpstermust be emptied when it is full. The dumpster shall not be used for household trash. A separate receptacle should be provided for householdtrash, and emptied when it is full.3) Contractor shall secure all debris at the end of each day to prevent any from blowing into the resource area.4) Erosion controls, including the silt sock, shall be inspected at the end of each work week, and after each rainfall, and shall be repaired by thecontractor immediately as needed. Silt a depth of 4" at the sock side shall be removed and redistributed over the disturbed area of the site. Aninspection report shall be completed once per week and when a problem has been found and repaired.5) Contractor shall modify erosion control measures to make improvements as necessary, and shall consult with the Engineer about changes.At no time shall controls be less than what is specified on these plans. A supply of silt sock, washed stone, hay bales, stakes, mulch, and seedshall be kept on site to make repairs as needed.6) Work leaving soil exposed for longer than 30 days shall be temporarily mulched and seeded, or covered with biodegradable erosionblankets to stabilize the soil in all areas possible. Temporary stabilization shall be done before any rain event.7) Work into cold weather shall be stabilized with dormant seeding to help prevent sediment travel during thaw periods, see planting plan.8) Contractor shall keep copies of erosion control inspection reports so they are available on site during work hours A report form is providedin the Stormwater Report.9) All drain inlets shall be protected until all tributary areas have been stabilized.10) Contractor to sweep Hampden Street daily or as needed to prevent tracking of silt and sediment beyond the property line.11) Any water on the site shall have all sediments settled out before it leaves the site. Discharge of any water toward the wetland is prohibited.12) Vehicles and equipment should not be refueled or have routine maintenance on the site.13) Vehicle tires shall be washed free of silt on the Stone Construction Entrance pad before leaving the site14) Permanently replanting the site shall be started immediately after soil disturbance has ceased except as noted above.15) Seeding shall be done after the soil has been final graded smooth, and a 6" layer of loam spread evenll over the top of any bare areas.Limestone and fertilizer shall be applied as soil tests indicate. Seeding for slopes shall be in accordance with the planting plan. Hay or strawmulch shall be applied at a rate of near100 lbs per 1000 sf. An appropriate application of Hydroseed or hydro application of wood or paperfiber may be applied after seeding with a suitable binder for wind control.16) After the site is stabilized and vegitation established, the erosion control measures may be removed. The Silt Sock may be split and spreadon the site.Suggested Construction Sequence1) Mow the Japanese Knot Weed to the perimeter of workper plan, and temporarily seed the area where noconstruction will take place for 30 days. See planting Plan.2) Install Silt Sock around perimeter of work per plan, andinstall tree protection.3) Install the Stone Construction Entrance per detail, takecare not to install over the area for the Detention System.4) Install dumpster near the garage with cover.5) Dig foundation, tree stumps, and remove debris fromsite.6) Construct foundation7) Set modular buildings with crane8) Backfill foundation to height specified on Engineeredplans.9) Install underground utilities to foundation10) Install Cultec Detention system, man holes, and stormdrain piping.11) Complete E&S for Inlet Drain.12) Complete Rough grade to the wetland side, loam andseed, and stabilize downhill side.13) Demo the Garage, remove trees, stumps and remove allwaste from the site.14) Remove Stone construction entrance pad15) Complete grading in driveway/front of building.16) Install sub base for asphalt.16) Install finish asphalt with curbs.17) Install Guide Rails at drive perimeter.18) Final grade, finish landscape, seed and mulchremaining site.19) Remove erosion controls after soils on entire site arestabilized.Date/Rev: 12 / 04 / 202112/6/2021DayEach report to include Report Date,Date of problem, description of the problem, repair description and date. If no repairs were made, state no repairs during this period.