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Engineering Comments_1 b©·w/Ò·©ähEEz-; 100GlenStreet,GlensFalls,NY12801 P:(518)8120513F:(518)8248391 www.chazencompanies.com HudsonValleyOffice(845)4543980 Engineers CapitalDistrictOffice(518)2730055 EnvironmentalProfessionals LandSurveyors LandscapeArchitects Planners January11,2012 Mr.CraigBrown ZoningAdministratorandCodeComplianceOfficer TownofQueensbury 742BayRoad QueensburyNewYork12804 Deliveredviaemailonly:CraigB@queensbury.net w;tw,;©·[ut;©zt;©zw;-ä-zm{z·;tw;Ýz;Þ ÞEvÒ;;,Ò©är©©;/Ò·ärb;Þ© /wé;t©;-·Ô u vÒ;;,Ò©äw;Ebt{¦;-z;t;©z· DearMr.Brown: TheChazenCompanies(Chazen)asreceivedthelatestsubmissionpackageforthePerkinsRecycling Facility.TheApplicantintendstomodifyanexistingSpecialUsePermitthatwasapprovedonOctober19, 2011. Yourofficehasrequestedthatwelimitourreviewtothedesignofstormwatermanagementanderosion andsedimentcontrolitemsasitrelatestocompliancetolocal,stateorrelevantcodesandregulations. Basedonourreviewoftheinformationprovided,ChazenoffersthefollowingcommentsfortheÞx consideration: {·©Þ·;©am;;·µ9©z7{;7z;·/·©t 1.Theproposedsiteplanmodificationwilldisturblessthan1acreoflandandwillnotbesubjectto NYSDECPhaseIIStormwaterRegulations.However,theApplicanthasprovidedcalculationsfor the50yearreturnintervalstorm,inaccordancewithSection1796080oftheTownCode. 2.ItisrequestedthattheApplicantprovideclarificationregardingtheintentofthe gravel extensionatthewesternedgeofthesite.ItisnotedthattheDecember5,2011letter,prepared bytheLawOfficesofNewellandKlingbiel,indicatesthatthisextensionisintendedfortrailer parking,howeverthesiteplanindicatesthatthetrailerspaceswillbeaccommodatedwithinthe existinggravelarea(withtheexceptionofthenorthernmostedgeofthelot).Thisgravelextension willcreateapproximately2,800SFofadditionalimperviousareawithinaportionofthesitethat doesnothavestormwatermanagementpractices.Clarificationiskindlyrequested.Additionally, siltfenceshouldbeinstalledatthelimitsoftheparkinglotexpansion. TownofQueensbury SpecialUsePermit32012RobertL.Perkins January11,2012 Page2 3.Thesiteplanindicatesthatdeeptestpitswillbeconductedwithintheinfiltrationtrenchlocations, atthestartofconstruction,toverifyappropriateseparationtogroundwater.Chazendoesnot takeexceptiontothisandhasalreadywitnessedthetestpitdugatthelocationofthenorthern infiltrationtrench.Itisnotedhowever,iftestingwithinthesoutherninfiltrationtrenchindicates theneedforarevisedstormwaterdesign,anyrevisionswouldbesubjecttoadditionalsiteplan review.TheApplicantshallnotifytheTownpriortoconductinganysoiltesting. 4.TheApplicantisproposingasecondinfiltrationtrenchdirectlyadjacenttotheexistingmetalsided warehousebuilding.ItisnotedthatSection6.3.1oftheNYSSWDM,requiresthatinfiltration trenchesbesetback25feetdowngradientfromanystructure.Itisrecommendedthatthe Applicantconsiderimplementingwaterproofingmeasurestoprotecttheexistingbuilding foundationfromdirectwaterexposureassociatedwiththeproposedinfiltrationtrench. 5.TheApplicantshallincludenotesonthesiteplanregardinggradingofthenewlyproposedpaved areasattheinteriorofthesite.Pavementintheseareasshallbeinstalledsuchthewaterwill sheetflowawayfromthebuildingsandtowardtheinfiltrationtrenches,tothegreatestextent practicable. /-Òz7w;-;7·z Itisouropinionthattheapplicantshouldprovideclarificationfortheaboveitemsandincorporatethe changesinsubsequentplansubmissions. IntheeventthePlanningBoardorTownstaffhaveanyquestionsorrequireadditionalinformation,please donothesitatetocontactmeat(518)8241926. Sincerely, SeanM.Doty,P.E.,LEEDAP SeniorProjectEngineer cc:PamWhiting,TownPlanningOfficeAdministrator(viaemail) KeithOborne,TownPlanner(viaemail) JoelBianchi,P.E.,SeniorDirectorMunicipalEngineering(viaemail) File R:\9\91200-91299\91204.00 - Town of Queensbury PB Engineer\91204.03- SUP 3-2012 - Robert Perkins\Docs\SUP 3-2012 Robert L. Perkins 1-11-12 -L1.docx