30D-007 Disposal Area Clean-up July 3 2000- .. ~ -
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:, .. ` ., Envronm n'tal Specialists '
34. MassDevelopment shall contact-the Conservation, Commission. within 30 days Ito
report ; czny~ ~ progress " on ~~~ developing ~~a project 'p~roposa~l ~ for the Department ..~~ of ~- ,
AgricultruYal Resources (DAR):.The Commission shall review and appYOVe "the project ' ,
proposal frol~a MassDevelopineiit before the project proposal' is sent to DAR... . " , ,
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-~ - ° 35: MassDevelopment cannot begin working on the approved project until approval or ~.
- . denial of .the DAR project proposal is submitted . dnd. reviewed by' the 1Vorthampton
Conservation Commassion.' . ~ ~ .
In~ compliance with these conditions,; =Tighe. &. Bond .has developed an "alternate. outfall location - "
_: m~3.: Details of tle=alternative location are. proposed iri the following'section ,
fora Detention Bas
= and should be reviewed:in reference~with the attached Site'Plan., - .
Detentioiz Basi~i 3 Alternate Outfall ~ _
Tlie proposed; alternate ,outfall is located in. the, southern corner. of a.'175 acre ,parcel; owned' by
DAR and ~ located off of Burt's Pitt ~_ Road ,The alternate location is approximately 75 feet'
northwest; of the'originally . proposed ;structure and _~ is " approximately ~ 15 feet west 'of the ; -
~, ~ wetland: This ;discharge locatrori consists. ~of ~an existing upland' ~swale that~~ruris parallel,to~: the;"~~~
,; wetland and a'2',footliigh berm associated with this swale acts,as:a barrier.between the outfall
~~ and .the...wetland; This ,berm allows for the ~diselarge to ;infiltrate into upl'and,. soils; before "
flowing; approximately;,50 ;feet -along the swale. into .the wetland`_` Similar ,to. t1iel previously :; , . 1,'
.. ~ permitted: design; the outfall~consists o~"a level spreader;lined with .woven geotexfilefabric, six
_ _ inches of;gravel base; =andan` approximately 2;foot thick~layer of nestled rip rap , A nme=foot
wide' 3=foot by 3-foot rock-filled wire mesh" box '(gab~on)' will be installed at the "north. end of \~ ,
the ' levelspreader. . ~ The: Swale • downgradient of the • gabion; ~wilh; be lined with a ;turf;,..
," 'reinforcement mat.and seeded with'crownvetch and perennial rye gxass to-the .exfent'of grading
to stabilize the area _, • ' _
~`" ~ ~ ~?Ve; look forward'to~ having 'tlie 'opportunity to discuss this project fiirtYer with.the, Commission:
If~ you Have. ariy-questions or desire to° schedule. a site visit, please contact;me at~,(413) "572=
.3296 ~ ,. - ~ `
_ .. ~ Very truly yours;
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TI H , & BOND" I `
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- - David L. ;Loring., E. d -,.,,,,..~." ,
S~anne .,..~--~-
Associate ` itix~%d ,"".+..~~-.'`"`
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\\wfld\Projects\N\N0592\D08\Wetlands\Cover,~,etter.doc . ~ (,heCl{gC~ ~
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Attachment _
Copy. MassDevelopment , ,.
Department of Environmental Protection (WERO)=- Wetlands Program . ~ -
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Original printed on. recycled paper.
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