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DocuSign Envelope ID:7ACADO9D-B318-4AD6-B8E5-CB7B9C2A289F
<br /> Union County Solid Waste Management SCS ENGINEERS
<br /> II 0 �o documentation for the County's landfill fifteen (15)
<br /> groundwater monitoring wells and two (3) surface water
<br /> ° r sampling locations for the 15A NCAC Subchapter 2L
<br /> � o Appendix I and II water quality constituents.
<br /> 111111 1111111111h11111 1101,1114),//40 Slim,1 I'm III �` 4 i Landfill Groundwater Contamination Remediation. SCS
<br /> 1,„,r,li r �'��a , %»y` ,�� provided field testing and designed a remedial strategy for
<br /> 1,00(iitl„)v V 11,/16,,,,,,,, ,,,,impoo„„,,,I,,,,1„,,II removing contaminates from the landfill property s
<br /> groundwater. The remedial strategy included a combination of
<br /> 1dt r'; .
<br /> EmIllIMMIN NO! monitored natural attenuation (MNA) and phyto-remediation.; 4.04'," ./SOMIOW 1011110111101010
<br /> The phyto-remediation system, utilizing beds of hybrid poplar
<br /> trees installed in the downgradient region of the groundwater
<br /> monitoring wells in which 2L exceedances have occurred to
<br /> restore groundwater quality in these regions. In areas of the
<br /> landfill which are unsuitable to install phyto-remediation beds
<br /> due to groundwater depths and/or steep topography, a
<br /> groundwater extraction system is installed and the extracted
<br /> groundwater applied to a phyto-remediation area through drip
<br /> irrigation. Additionally natural attenuation is also used to
<br /> degrade certain constituents of concern which have exceeded
<br /> the 15A NCAC 2L groundwater quality standards (2L
<br /> groundwater quality standard) within the reducing environment
<br /> of the uppermost pervasive aquifer.
<br /> Construction and Demolition (C&D) Landfill Closure. SCS
<br /> staff prepared a closure design and bidding and construction
<br /> drawings and specifications for 13.2 acres of the County's
<br /> C&D Landfill that is located on-top of a non-Subtitle D MSW
<br /> Landfill. In addition, bidding and construction administration
<br /> support services were
<br /> provided to the County during
<br /> ,� ,� �„ � bidding, contractor
<br /> aid i o ' procurement and construction.
<br /> el,0111141'� Y ,/% SCS staff provided
<br /> construction quality assurance ' .� ii i%/ il
<br /> (CQA) services during landfill f y
<br /> closure construction. Upon 1
<br /> �i rigor
<br /> completion of the landfill ���r il/ %,, �� '
<br /> l /ire ,, /r , i °y i r'
<br /> closure construction, a CQA ) l�,/� �p�/��������� ° '
<br /> Certification Report was , !e` r
<br /> prepared and submitted to
<br /> NCDENR and subsequently approved.
<br /> Project Profile
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