Naz$Ritchie,$P.Eng.$$Waste$Management$Division$

ONEIA$Workshop:$September$9,$2014$

! Background$$! Outcomes$of$the$Feasibility$Study$for$Soil,$Sediment$and$Materials$Management$$

! Outcomes$of$Beneficial$Reuse$of$Sediment$Testing$Program$for$VPL$

! Next$Steps$within$the$Waterloo$Region$

! Goal:$Divert$materials$from$landfills$!  Identify$Sustainable$Approaches$for$managing$soil$and$other$materials$(SWM$Sediment,$Construction$Waste,$and$Aggregates)$

! Partnership:$Region$and$City$of$Kitchener$

! Funding:$$MOE's$Showcasing$Water$Innovation$Grant$(SWIG)$

! Undertook$following$studies/initiatives:$!  Stakeholder$Forum$in$May$2012$(Bloom)$! Feasibility$Study$for$Sustainable$Management$(Golder)$Oct$2013$

!  Sediment$Testing$–$Victoria$Park$(Stantec)$Jan$2014$! Studies$tied$into$existing$programs:$

! Waste$Management$Master$Plan$(2012$to$2013)$! Brownfields$Financial$Incentive$Program$! Management$of$Sediments$from$SWM$Facilities$

! Steering$Committee$Meetings$(SWI$Grant):$$! Fall$2012,$July$2013,$Feb$2014$

! Consulted$with$various$branches$of$the$MOE$! Best$management$practice$guidelines$for$excess$soil$

!  Identify$other$management$of$excess$materials$! Assessed$feasibility$of$a$soil$&$materials$management$campus$

! Reviewed$regulatory$frameworks$! Estimated$soil$and$materials$to$be$generated$from$different$sources$within$the$Region$

!  Identified$potential$receptors$/$sinks$within$the$Region$

! Municipal$Construction$! Transportation$Infrastructure$

! SWM$Facility$Sediment:$$$Kitchener,$Cambridge,$&$Waterloo$

! Waterloo$Landfill$Future$Cell$Construction$

Study&Recommenda.ons&! Known$Factors:$$

! Upcoming$Development$Projects$–$10$years$! High$Level$Estimated$Quantities$

! Unknown:$$!  Timing:$Window$when$excess$material$is$available$or$fill$material$is$needed$–$usually$a$short$period$

!  Environmental$Quality$of$Excess$Material$$!  Geotechnical$Characteristics$of$Excess$Material$

Study&Recommenda.ons&

! Establishing$a$soil$and$materials$campus$would$be$premature$

! Need$better$understanding$of$sources$! Creation$of$database$framework$–$predictive$planning$tool$

! Details$to$follow$in$"Next$Steps"$

!  50,000$tonnes$sediment$!  45000$tonnes$subsoil$! Excavated$and$taken$to$the$Cambridge$LF$Site$!  Identify$Beneficial$End$Use$of$SWM$Pond$Sediments$

VICTORIA&PARK&

! Goal:$Reduce$parameter$conc$$over$time$to$meet$inert$fill$standards$

! Metals,$PAHs,$PHC,$Inorganics$

! BOD,$COD$&$NOD$! TOC,$TKN,$Total$P,$K,$pH$! Three$test$approaches:$$

!  Large$Stockpile$! Nutrient$Trial$! Compost$Amendment$

! Different$Scenarios:$Smaller$stockpiles$

! Control$stockpile$! Added$urea$to$two$piles:$tarp$&$no$tarp$

!  Impacts$of$heat$$$$retention$&$anoxic$environment:$tarp,$no$urea$$!  Impacts$of$aeration:$Pile$spread$out$in$a$thinner$layer$

! Add$sediment$(10%$and$20%$mix$by$weight)$

! Four$compost$piles$! Two$scenarios:$! Added$sediment$at$the$start$of$the$compost$process$to$two$piles$! Added$sediment$mixes$partway$through$the$compost$process$to$two$piles$

Test Programs Large Stockpiles

Nutrient Testing

Compost Amendment

Goals$ Observe the behavior of parameters in large stockpiles with no treatment

Assess impacts of adding nitrogen, heat retention & anoxic conditions

Accelerate reduction of PAH and PHC concentrations by adding to compost

Length$ 2 years 1 year 6 months

Lab$Results$$Table$1$&$2$SC$

Reduction PAHs EC, boron, SAR were just above Table 2 SCS in one or more samples Variable results for PHCs

N was being used to support bacterial growth Thinner stockpile – most promising results

Reduction in PAH Samples met CCME & Ontario stds for metals Consulting with MOE re acceptable limits for PAHs and PHCs

! Database$Framework:$$Start$using$as$a$planning$tool$for$proactively$managing$excess$material$

! Betaftesting:$$Provide$access$to$Region$and$Area$Municipalities$Staff$$

! Continue$dialogue$with$the$MOE(CC)$on$options$for$beneficial$sediment$end$uses$

! Database:$Region$and$Area$Municipalities$! Sediment$data$collection$from$other$municipalities$!  Identify$opportunities$and$timing$of$excess$materials$$

! Upload$environmental$&$physical$properties$f$as$PDF$or$enter$max$conc$into$a$table$$

! Meant$to$complement$the$Soiil$database$$

$

List&of&Sites&

! Summer$2014:$Kitchener$issued$a$RFP$for$collecting$sediment$samples$from$20$SWM$facilities$

! Scope:$Analysis$of$samples$to$help$identify$trends$! Determine$sediment$testing$protocol$$! City$consulted$with$the$MOE$to$identify$key$parameters$to$test.$$Continue$to$consult$throughout$this$project$

! Use$information$to$identify$options$for$beneficial$end$uses$

Links&to&Reports&$

For$more$information$see:$$$1.$Stakeholder$Forum$Final$Report$(Bloom):$

http://www.regionofwaterloo.ca/en/aboutTheEnvironment/resources/WMMPFinalBloomForumReportOct2012.pdf$

2.$Feasibility$Study$Final$Report$(Golder):$http://www.regionofwaterloo.ca/en/aboutTheEnvironment/resources/Soil_Management_Feasibility_Study_Report.pdf$

$3.$Sediment$Study$Final$Report$(Stantec):$Upon$Request$$4.$SWI$Case$Study$for$Victoria$Park$Lake$(Region$and$

Kitchener):$http://www.kitchener.ca/en/livinginkitchener/resources/VPL_SWI_Case_Study_English.pdf$

$Or$Contact:$Naz$Ritchie,$Environmental$Engineer,$

nritchie@regionofwaterloo.ca$$