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Complete Renewal Application Arkansas Department Of Adeq State Ar Inquiry Instruction

all right good morning it is a bright.shiny Monday morning and it's 8:30.welcome to the stormwater management.webinar I see a number of you are there.so the first thing I wanted to do is.just some introductions.let's see what's in there all right so.this is me I'm Stacy Williams I'm the.director of the center for training.transportation professionals I'm on the.faculty at the University of Arkansas in.the civil engineering department and as.part of the CTP program we work a lot.with the Department of Transportation.and offer training and certification.courses for materials quality control.quality assurance and that type of thing.for highway construction and then a few.years ago started also working a lot.with the technology transfer program and.so that's kind of where this has.developed from and stormwater is one of.the topics that's gotten a lot of.traction lately so glad you all are here.real quick let me just do a couple of.housekeeping things we're going to go.through a few slides that will show you.how to kind of use the software I don't.know if y'all are familiar with the.go-to training type software but let me.go through a little bit of that and then.we'll come back and do some.introductions another thing that I will.need is if you are viewing the webinar.as a group because I know Rob you've got.a whole group of folks at your shop I.will need to get the individual names.along with that agency so you can put.that in a chat pod or you can send it to.me by email later just however to make.sure they get credit for their Rhodes.Scholar points so let me move forward.here and let me show you just a little.bit about the controls there is a little.box there in it's your control panel so.when the arrow is pointing to the left.in that little orange that little orange.box there if you click that it will.expand your control panel and.you can see things about your audio you.can see the list of attendees there's a.chat box so that gives you a little bit.of information on what's going on and.then the next button is the mute button.and I see that several of you have that.clicked which means that you are your.sound that's not coming through and.probably just for good practice if.everyone will mute themselves unless you.want to talk if you want to ask a.question no barriers make sure you jump.in and ask that question the next little.control you can go full screen or not.full screen and then raising your hand.and Gary I see that you have your hand.raised so did you have a question up you.put your hand down so these are really.cool little controls so it's it's.interesting to do things in the webinar.setting because you can't actually see.the classroom so as the instructor it's.definitely a little bit different but we.do have kind of all those normal tools.so if you do want to ask a question be.sure and raise your hand if you click it.again it will put your hand down the.other part is the chat pod and I want to.show you that the chat pod is where you.can type a message you can send it to me.you can send it just to the organizers.you can send it to the entire audience.you've got choices there so y'all can be.having lots of conversations going on.amongst yourselves and I'll never even.know it.so I'm not condoning that you goof off.during class of course but it is an.option so anybody have any questions or.anyone having any issues with the audio.and being able to hear that kind of.stuff all right well don't be afraid to.shout out we are going to have some.breaks we'll go through several topics.here and we'll have a couple of.different breaks because I know it's a.long time to sit at a computer so with.that I think we are.pretty much ready to get started and so.I've introduced myself what I would like.for each of you to do I will call out.your name and then if you will unmute.and tell me your name and what agency or.what group you represent and tell me a.little bit about what your involvement.is with stormwater management so it.looks like and is at the top of the list.so if you would go ahead that would be.great.I'm ed Ellis I'm with the University of.Central Arkansas a DEQ had required us.last year to become an MS 4 and so we're.going through the catharsis of.understanding stormwater and then how to.apply it to our campus very good good Oh.Gary Frank's very good and then Kyle my.name's Kelly I work with our I'm an.office re 55 in Searcy and this is just.another stepping stone for us to to.learn this and that's what I'm here for.very good and then Rob I don't know if.you want to introduce all your guys but.just tell us a little bit about what you.y'all are doing over empirical well here.apparently we have a street department.here approximately 20 to 25 men I'm the.safety coordinator for the Perrigo.Public Works and we're here just to.Incline on learning more about storm.water management and to ensure that.we're doing the proper procedures as.well as safety good deal all right well.glad you all are here and again at any.time if you have questions don't be.afraid to jump in so I'm gonna go ahead.and move this forward in the slides I'm.gonna start talking about stormwater so.the biggest thing here is that we are.talking about our waterways and we're.trying to keep our waterways clean.partly because we want to make.you think about all the things that we.do just as people you know not.work-related we want to have good places.to go we want to go hunting fishing.canoeing camping all those fun things.there are a number of different areas of.commerce that deal heavily with the.waterways agriculture we've got the.energy sector a lot to do with Commerce.and so it's a big deal that we keep our.waterways clean and then water quality.in general is important to everybody and.I always use the example that years ago.bottled water.wasn't that common but now everybody has.bottles of water so that means we spend.money to make sure that we have clean.water so clearly we put emphasis on it.in our personal lives but then when you.think about what we do in our jobs we're.in the business of construction and so.we tend to kind of make a mess with some.of what we do and so thinking about.water quality we're looking at some of.the things that that are making that.mess it's the nature of the beast we.have to disturb the ground to be able to.get the construction done but at the.same time we know that it is important.to keep those waterways clean and so we.see a lot of issues that happen during a.rainstorm and if you look at the.pictures on this slide in lots of money.water it's happening it's kind of normal.but we want to try to minimize that as.much as possible and we certainly don't.want it to be happening that way because.of something that we're doing during.construction now this class I think of.it as a whole lot of common sense type.things but it's it's a lot of the.concepts that we kind of know but maybe.we don't think about a whole lot and so.when we talk about stormwater a lot of.what we're thinking about is the fact.that water runs what direction anybody.want to take a shout out and because I.know you know the answer to this one.what direction this water run.all right water runs downhill so maybe.just not quick on the unmuting button.but I know that you know water runs.downhill that's gravity but what happens.when water runs downhill is that we also.have the things that go with it like.sediment we have fertilizers pesticides.oils heavy metals bacteria lots of other.things that get washed downhill with it.water is also a very powerful thing the.more water we have the more power it.carries with it the more energy it has.the steeper the slope it's running down.again the more powerful it is and the.more energy it carries and so we see a.number of cases and Niagara Falls it's.the picture on the left and obviously.lots of power happening there and then.we see some of the damage that can.happen in the picture on the right we.have a big rainstorm and then suddenly.our roadways are not intact anymore we.lose a bridge or we have a catastrophic.failure so those are the kinds of things.that we may have to deal with more in.the maintenance and construction area.now construction kind of has a bad rap.because we are not the only folks that.disturb the ground or create sediment.and erosion but we are often cited in.lots of statistics as the folks who are.doing the most damage in this area so.construction sites are cited as the most.significant source of sediment in.stormwater runoff and big numbers like.two point four billion cubic yards of.lakes and reservoirs are filled up each.year with sediment so if you look.through all those types of Statistics.yeah we're kind of the bad guys but.again construction is part of what we do.so that's the nature of the beast now.one of the things we need to think about.is what are the impacts of this where.does the sediment go so if we look at.this picture this is you know again some.more muddy water but let's think about.those water bodies that serve as say a.public water supply source so if we have.sediment and that sediment runs downhill.with the other water everything runs.downhill until it reaches.kind of its culminating point which.technically would be the ocean but let's.say it runs into a lake if it takes.sediment with it now that Lake has.sediment in it so the sediment will.start to kind of fill in the bottom of.the lake so we have all that sludge and.sediment at the bottom so that's.actually taking away from our capacity.so now we've kind of filled up the.bottom the water has to sit at the top.it looks the same from our view up above.but then let's say that we also have a.really dry summer so we have a drought.in the lake levels go down now the.capacity of that lake is actually.greatly diminished and we're trying to.serve a community by being a public.water supply source now put them in the.context of say Northwest Arkansas where.we've grown by leaps and bounds Beaver.Lake is having to supply water to more.and more homeowners so the demand is not.decreasing so if we're doing things that.cost the supply to decrease we're just.creating long-term problems now erosion.is one of the basic concepts here and.erosion is the process by which the land.surface is worn away by the action of.water or wind so basically just a soil.particle moves away from its natural.location and it goes somewhere so those.soil particles can happen they can move.from a number of different reasons one.is just the rain raindrop impact so when.that raindrop hits the soil if that soil.doesn't have something to hold it.together then the the impact action of.that raindrop knocks it loose and then.it's free to go somewhere which we know.is going to be downhill sheet erosion is.another type of erosion and this is more.of where we have a somewhat flat area.but the water is all sitting there as a.sheet but depending on the slope of that.flat area we're going to have a sheet of.water that all moves together as it.moves it's also creating some abrasion.on the soil surface so those particles.are going to be moving if we have more.of that or maybe on steeper slopes.that's where we would see this it's more.common.we'll have what we call rills these.rills.are small defined flow channels so we.said that water runs downhill so.obviously it's going to start at the top.of the slope and it's going to run.downhill but the more we have the more.energy it carries the more erosion.potential we have so in the picture on.the left you can see the little channels.that are formed and these channels.actually create a different direction.for downhill so that's probably the.weakest point those are the soil.particles that came loose first so now.we have this little channel that runs.down and that is downhill so that forces.the water to be more concentrated.because instead of flowing in sheep flow.straight down the slope now it's going.to converge and get together in these.other small areas and that creates a.channel creates more damage and then.over time that's going to be even more.so and so on the right we have a picture.of what's called gully erosion and this.is where those channels are really.defined and kind of create their own new.paths downhill all right another type of.erosion is stream bank erosion this is a.natural occurring phenomenon it's not.always due to construction but it can.have impacts on construction so what.happens in stream bank erosion is that.we have water moving and it's in that.channel but those channels are rarely.straight so when the water comes up to a.turn it doesn't really say hey there's a.left turn coming up it just hits the.outer bank of the channel and then it's.forced to make that turn.so when it does that it's hitting that.outer edge of the channel and that.creates an impact so the more flow we.have the more energy there is creating.that impact and we have greater.potential for erosion so obviously you.can tell in the picture on the left the.water level has been up pretty close to.the grass line so we've got those.exposed tree roots and such and again.this doesn't necessarily impact.construction unless we have a.construction site or a road.that's in the vicinity of where this.type of erosion is happening so there.have been a number of cases where the.roadway and the waterway were completely.separate but over time that channel has.gradually shifted and now it's starting.to encroach on the location of the.roadway or maybe it's eating away some.of the roadbed soil so that happens in a.number of cases especially in our County.roads because a lot of the little gravel.roads actually follow the pathway of the.water so you'll see a stream right next.to a road a lot of times now in the big.picture we never want the roadway to be.that close to water because pavements.and water don't mix they don't play well.together so we don't really want to have.that happen but ancient times that's how.they put that's where they put the roads.that's where their travel paths were so.that's something that we may need to go.in and do some type of a stream Bank.restoration the other picture on this.side is referring to wind erosion and.that is something that really is kind of.weather or climate dependent you see.that a lot out west we do experience it.some here in Arkansas but for the most.part we think of we think of water is.really being the thing that causes the.problem with erosion all right so those.are all the concepts of erosion and how.the soil erodes but now sedimentation is.the other part that really creates some.issues for us and construction.sedimentation is the movement and.settling out of the soil particles that.have been in suspension so erosion is.where the particles come loose and then.they start moving sedimentation is where.they slow down and settle out so you can.imagine that when the water is moving.really quickly it has more potential to.erode and carry those particles once it.has a chance to kind of slow down those.heavier particles are going to settle.out they're going to land somewhere and.there's lots of sediment in this picture.the type of soil can have a huge impact.on how how erosion is going to happen so.if you have a lot of sandy soil that's.typically going to have higher.permeability so it's going to allow more.water to come into that soil it's going.to have less runoff though because it's.absorbing more of the water now sandy.soils the particles themselves are.actually larger than silty soil or clay.of soil particles so that means since.they're larger they're heavier and the.sediment doesn't travel quite as far so.that's one thing that's kind of helpful.with sandy soil silty soil healthy soil.is much more erode Abal it's got reduced.permeability because that has very small.particles so this is a lot of times.where we're going to have our biggest.problem is if we have a soil type that's.very silty and then clay type soils and.that runoff doesn't tend to pick up clay.as easily as it does silt because it.kind of walks together the particles.themselves are teeny teeny tiny but they.tend to clump together so they're more.cohesive and stable but if they dry out.they can be kind of eroded one of the.biggest issues with clay though is.because those particles are so tiny they.stay in suspension so if the water.carries that particle away it's not.heavy enough to settle out and so it may.take as much as a week to settle out of.the water now let's back up and talk.about some of the the laws and.regulations and that kind of thing so.where did all this stuff come from.because we know there's a lot going on.with storm water right now lots of.regulations lots of rules lots of really.picky details that we have to pay.attention to but it all started back in.the early 70s with the Clean Water Act.and this is really the first major piece.of legislation where you know we decided.we're going to keep our environment.clean and so there were a number of laws.we're in acting in that period for clean.water clean air and so on but the Clean.Water Act specifically dealt with the.health of us waterways and made it.illegal to pollute water bodies from.that I mean that's kind of a generic.statement but from that then they came.up with the national pollutant discharge.elimination system and that is.administered by the Environmental.Protection Agency that's basically the.system that they came up with to say how.are we going to actually make this.happen it's saying don't pollute the.water that's very generic very broad so.we're going to have some more detail the.NPDES system it's it is administered by.the EPA but the EPA is the national.level organization and in the state of.Arkansas we have a state level.organization called a DEQ or the.Arkansas Department of Environmental.Quality so I know most of you are.familiar with with that four-letter word.and they are the ones who issue the.stormwater permits so that's the ones.that we deal with most directly now.almost every state has a state-level.agency but there are still two or three.out in the western part of the country.that actually don't to the EPA deals.with them directly in Arkansas there are.a couple of specific laws regulations.and responsibilities there's a law that.says it shall be unlawful for a person.to place or cause to be placed in the.industrial wastes or other wastes in a.location where it is likely to cause.pollution of any waters of the state.there's also a law that says we cannot.purposely knowingly or recklessly cause.pollution of the water in a manner not.otherwise permitted by law but we just.said it's unlawful for a person to do.any of those things so it is illegal to.pollute the water basically in any form.or fashion it is also illegal for a.person to purposely or knowingly make.any false statement representation or.certification in any document required.to be maintained so if you have any any.paperwork and.of course we have a lot of ducks if.you've been involved at all with any of.the stormwater regulations you know.there's a lot of paperwork that goes.along with it so we can't make any false.statements on that paperwork.what about penalties what if we do mess.up well there are a number of things.that can happen if you don't have a.permit and you're still working we're.looking at probably up to about $10,000.per violation if you violate the.endangered species those regulations.then it it's a more potent fine that's.like twenty five thousand dollars and.these are up to but typically it's.probably fairly accurate but the kicker.here is not just how much the fine is.for a particular violation but you have.to understand that every day that that.violation is happening then it is.considered a new and separate violation.so if a DEQ comes in and finds that.you've done something wrong and they.find new ten thousand dollars the next.day you can get another ten thousand.dollar fine and the next day another ten.thousand dollar fine until you've.corrected that situation so depending on.how serious are difficult that item is.to correct that can add up to a whole.lot of money in addition to all of that.the EPA can also assess civil penalties.up to almost two hundred thousand.dollars so that can be significant as.well now in all of these rules and.regulations a lot of the terminology.deals with this waters of the state so.we need to look at what that means.waters of the state basically or any.bodies or accumulations of water so it's.going to include it all the stuff that.you would expect lakes rivers streams.natural ponds it will include wetlands.Prairie potholes wet Meadows.intermittent streams and those are a.little bit tricky because you can look.around there during the dry season and.there's no water there but it's still.considered a water body because if you.have a big storm that will be the place.that water will accumulate or the path.that it will take.don't forget about drainage systems and.then also underground sources like wells.Springs and irrigation systems and it.doesn't matter on these if they're.public or private it doesn't matter if.they are surface or underground sources.of water if they're natural or.artificially created but basically it's.any accumulation of water and in a.meeting that I was in with a DEQ there.was a statement made something that was.asked about accumulation to water and.you know how picky is that and they said.technically a puddle in the parking lot.is considered a water body so I don't.think that they would get too excited.and and fined me for polluting a puddle.in the parking lot but it is possible so.here are some examples of waters of the.state so we see some man-made drainage.channels we see some natural drainage.channels a creek and then the bottom.right photo is an intermittent stream so.actually no water in that picture at all.but it is still considered a water of.the state because of its potential so.what does the waters of the state.definition not include and that's a real.short list it includes the waters of the.state do not include sediment basins.sewage lagoons and water treatment.systems and farm reservoirs the sediment.Basin makes sense because that's.something that we use during.construction to try to contain this.sediment so it's supposed to have.sediment in it sewage lagoons water.treatment systems that type of thing is.typically regulated by the Department of.Health so they've got a whole other set.of regulations that they have to go by.Farm resevoir is not as much information.on why that would not be included but.they are exempt from waters of the state.definitions so that's one that's that.one actually can be frustrating probably.for you guys Rob over in the eastern.side of the state with it's the farmers.through flood their fields and then you.have to deal with a lot of water in your.ditches and that sort of thing so that.can put a load on your storm drain.system.what about the authorities who all are.we answering - well a DEQ is the most.common one so Arkansas Department of.Environmental Quality and they're going.to be involved kind of all the time when.we're doing things related to stormwater.the EPA again it's the national level.agency that it's above a teq sometimes.they get involved on larger projects.sometimes they get involved just as kind.of an audit of a DEQ so we may see them.out on a jobsite the US Army Corps of.Engineers will be involved any time.we're doing work in a water body or in.the immediate vicinity of a water body.and that would be things like bridge.construction culverts those sorts of.things US Fish and Wildlife is another.agency and they're going to deal more.with the endangered species.certifications Arkansas Game and Fish.may be involved and then MS Force that's.a municipal separate storm sewer system.and that's usually going to be more of.the urbanized areas a city may be or a.group of cities will form an MS 4 and.they have regulations to make sure that.the storm drain systems and all of all.of the the effects that will impact the.quality of water in that area they may.have some additional requirements it's.usually pretty well in line with a DEQ.but they have to have a permit from a.teq and then meet those requirements so.there are lots of lots of rules and.regulations then the qualifying local.program is another term it really only.applies to hot springs right now in the.state of Arkansas but a qualifying local.program has a program within their city.that is strict enough that a DEQ says.you know what I'm not going to worry.about overseeing that because we know.you guys have it under control that's.true for smaller job sites larger ones.still have to go through a DEQ but is.this something that's fairly unique.about hot springs so you may have heard.about the hot springs stormwater.training program that they have.now the permit that's going to apply to.us most of the time dealing with.construction is the construction general.permit it was last revised November 1 of.2016 and it's a five-year permit so this.is really the state's primary way to say.here's how we're going to implement this.whole NPDES system the goals are to.protect water quality that's dub one and.then also to be a little more specific.on how we're going to implement the.requirements of the Clean Water Act this.permit is required for all construction.sites that are one or more acres of soil.in disturbed so if you are disturbing.one or more acres and that refers to the.entire job area so for example if you.had a subdivision that was being put in.so the developer has say a whole bunch.of quarter acre lots.you cannot treat those quarter acre lots.as separate entities it is all part of.one larger development so you have to.have the permit if that entire.development is an acre or more so.generally the only time that you don't.have to fall under this general.construction permit is when you do.things that aren't ground disturbing.activities like an overlay in that case.we're coming in and putting a new layer.of asphalt on top of something that was.already there counties that do gravel.road maintenance they are not required.to operate under the permit because.they're not changing the lining grade of.the road they're just refreshing the.surface so as long as they're not.disturbing the soil then it's not.required but there there used to be a.long list of things that fell into that.category and that lists get shorter and.shorter so basically we have to have the.permit for almost everything that we do.the requirements have the site's.classified as large or small so for.small that's going to be considered it's.less than five acres and we're going to.have some different requirements a.little bit easier on the paperwork.actually as compared to a large site.which is five or more acres now in.concept there's no different.between a small or a large site we still.have to protect the quality of water we.still have to do the right thing it's.just really a paperwork issue and some.of the fees are different.clearing grubbing excavation demolition.Hall road construction all of those kind.of things are going to be subject to the.requirements of NPDES so if you're.asking yourself do what I need a permit.well if it's new construction and you're.disturbing the ground for a large.project yes and for a small project also.yes as long as it's more than one acre.that's being disturbed grading on.unpaved roads no you do not have to have.a permit if you're doing overlay chip.seal that kind of thing then no if.you're doing a widening project maybe.it's an overlay but you're adding a lane.then you are disturbing the ground like.a notch and widening type project you.will be disturbing the ground so yes you.have to have a permit another one that.we may not think about is ditch.clean-out a ditch is actually a water.body and so in this case we're not only.disturbing the soil.we're also disturbing the soil directly.in a water body so yes we have to have.that for ditch clean-out projects and.would kind of think of that is just.normal maintenance now bridges and.culverts we definitely have to have a.permit but we're also going to need to.do some other paperwork which will.include an sta a a short-term activity.authorization 404 permit is through the.Corps of Engineers that's something that.you know bridges and culverts again.we're going to be working in the.immediate vicinity or in a wetted area.and so that's something that's going to.be some some extra permissions that.we'll have to get before we start work.but regardless of all of this do we need.a permit regardless of what you're doing.we have to follow best practices so.let's say that you are a county that's.doing some blading and doing maintenance.work on your gravel road.we're not changing the line in the grade.so I'm not having to operate under the.permit however if I'm scraping a bunch.of soil off of you know maybe I'm doing.a deeper cut on that road and I've got a.lot of material that goes into a ditch.and then the next day it rains really.hard and all of that material ends up.clogging up a culvert we've we've.actually violated the law then so you.still have to follow best practices even.when the paperwork isn't all that.necessary all right so the the permit.process here I've got a little bit of an.outline but I want to take a break real.quick and pull up one of the poles so.I've got a pole I'm going to put that up.on screen right now so I'm going to get.a feel for how much experience you all.have with stormwater management so I've.just got three choices here none at all.a little bit or quite a bit if you have.ever had to put together any of these.documents and acquire a permit put quite.a bit and then some of you may just be.brand new at this.alright it looks like everybody I think.has entered their answer so we've got.about half of the group has just not a.not much of the book getting some more.answers now ok almost half have very.little experience another good portion.that's a little bit of experience then.we've got a few that have quite a bit of.experience so a good cross-section so if.you would now in the chat pod if you.have ever put together a stormwater.pollution prevention plan or a swip if.you would tell me that you've done that.just type that in the chat pod or if.you've never done anything like that.just type know.all right very good so I think a lot of.times when I teach this the majority of.the group will say no they've never done.anything like this so some of this may.be a little bit out of the realm of what.you feel like you need to know but it's.still good to see how this process works.so the permit process really starts with.you hold on let me get rid of that pole.yep okay so your screen should be back.where I am but the permanent process.starts with a DEQ and what we have to do.is let a DEQ know that we intend to do a.project and so there's an application.form that's called a Notice of Intent.so we're going to fill that out that's.going to give a DEQ information on what.it is that we're planning to do it's.going to give them some details on the.construction process it's going to tell.them what we're planning to do to.mitigate and manage our storm water.issues and then they're gonna send back.something to us and say yes I think you.have a good plan or no I think you need.to add this or there's an issue here you.need to address they will have some.comments sometimes that will come back.with that Notice of Intent.when we submit that form we're also.going to submit what's called a.stormwater pollution prevention plan or.swip it's also called SW p p SW PPP swip.swoops whippin i've heard all kinds of.names for it but I call it a swip so.this swip is the big document it's gonna.have a lot of information in it to talk.about that project and this is really.where a DEQ is going to get most of.their information about the project so.we put all of this paperwork together.and we submitted a DEQ has two weeks to.review it and then give you an answer of.yes go ahead or no there are some other.things that you're gonna have to do for.a large project there will also be a fee.and I believe the submittal fee is still.$200 now they used to take all of this.stuff we would mail in packets of.information but they now have an e.portal.so everything is online you have to.create an account with a DEQ and then.you'll submit all of these documents.online after they have reviewed it if.they agree with what your plan is they.will send you back what's called a.notice of coverage was just a letter.that says you are authorized to.discharge you can operate under that.construction general permit and you do.have their permission they're aware of.what you're doing everything looks good.occasionally especially in the.springtime they may have just whole.bunch of projects coming in all at once.so let's say that 10 days 10 business.days have passed that 2 weeks and you.haven't heard back from them you are.allowed to go ahead and start work as.long as you've not gotten any comments.back from them however if they send you.back a comment and you have to address.that comment then your two weeks.basically starts over after you send.back your response to that comment all.right so after they have sent you the.NOC or that notice of coverage that.means that you're good to start work so.you do the project and then when.everything is done and finished you're.going to be able to submit what's called.a notice of termination or in OT which.tells a DEQ we did what we came to do.we're finished everything's cleaned up.the site is stable and we're out of here.so at that point they may want to come.and do an inspection or check it out and.just verify so some things to really pay.attention to whether you're submitting.the swept and putting all that.documentation together or whether maybe.you're just working on the project you.still need to be aware of all the.documents that are associated with the.project so working in a water body is.typically where we get a little bit.pickier so if you are working in or in.the immediate vicinity of a water body.this is going to be bridge or covert.construction any channel alterations.even going in and cleaning out doing.debris removal or some of your.maintenance activities where you're.getting into that water body you are.going to need to do some things like get.the section 404 it's called a 404.permit but it comes from section 404 of.the Clean Water Act.this is permission from the Corps of.Engineers to do work within the waters.of the United States.now definition wise it's a little.there's some picky differences between.waters of the state and waters of the.United States been in general it's all.we need to consider it is pretty much.all the same thing.it's going to be those water bodies that.could be affected by the project that.we're planning to do so we have to get a.permit from the Corps of Engineers at.the same time we also are getting a.section 401 water quality certification.and this is something that we deal with.a DEQ on and we have to get this water.quality certification before the 404.permit can be valid so in this case.we're working both with a DEQ.and the Corps of Engineers there's also.what is called a short term activity.authorization or an sta a and that is.done through a DEQ this is kind of doing.the same thing as the 404 permit except.that it's through a DEQ we're letting.them know that we're going to be working.in a water body and probably they're.going to make us do some testing and.this is something that's been relatively.new over the last permit or two yeah.just the very last few years this is.again a short-term type thing and so it.is valid for a six-month time period and.that time period starts as soon as you.enter that wetted area so when you first.get into the stream to say place your.footings or whatever it is maybe you're.putting in a box culvert you have a six.month period from the time you enter the.wetted area to get that work done now if.we're building a big bridge the odds of.us being able to finish that in six.months may or may not happen but look.for creative ways to structure the.process of construction so that you can.maybe minimize and that's really what.they're looking for you to do is.minimize the amount of time that you.have to affect.that waterbody are there things that you.can do on the bank and not really affect.the water until it's absolutely.necessary then they really want you to.get in get your work done and get out.now we don't have full control over.things like the weather there's a lot of.stuff that can happen in construction.that even if we planned for it to be.finished in six months it might not be.so there is the alternative to renew.that if you are not finished within the.six month time frame but they want you.to at least do your best to hold it to.that point now turbidity is something.that it's one of the big buzzwords I.guess for storm water and it's basically.just a measure of the clarity of the.water it's done by passing a light.through a sample of the water so the.clearer the water is the more light will.pass through the dirtier the water is.the less light will pass through so we.get a measure of what impact our.construction activities are having on.the clarity of the water and that you.know that's one of the things about.storm water it's just not real numerical.we do some things we have some good.practices but as far as being able to.assess exactly how good we did we don't.have a lot of numbers to really stand on.so turbidity is one of the things that.we can measure it requires a turbidity.meter but the test itself is not.terribly difficult you get a sample put.it in the little glass jar make sure you.clean any fingerprints and smudges off.of the glass jar because that will.affect how well the light passes through.and then you push the button on the.machine and it spits out a number so.that it's pretty clear-cut pretty simple.test to run it's just a matter of being.able to purchase the equipment but.turbidity is important because it is.dirty water but in addition to that it's.also going to increase the temperature.of the water so the more solid you have.in the water the warmer it gets you have.a decrease in the dissolved oxygen which.is needed for fish so then we end up.with fish having more disease and then.there's a lot of far-reaching impacts on.that so the turbidity is not too.that it's ugly and actually affects a.number of things - all right so what all.do we do before construction well this.is really where all the paperwork and.the thinking is happening so first of.all we know we're going to start with.that notice of intent or the NOI for our.large sites we're going to submit that.two weeks prior to when we want to start.work for the small sites we actually.don't have to submit this we just need.to still put together our stormwater.pollution prevention plan our swip.that's WIPP that's really the hard part.of the paperwork because we're putting.together a whole lot of information all.the project information the plans and.specs in basically any document that we.have that relates to the project.specifically things that are going to.tell us more about the site the lay of.the land drainage information we're also.going to tell we're going to have some.pages in the plans probably that will.tell us what BMPs or best management.practices are we going to include on.this project so are you going to use.silt fins if so where is that going to.be how much of it are you going to use.are you going to use ditch checks so all.of those techniques that we're using.they call them best management practices.where are that's going to be we're going.to give as much information to a DEQ as.possible and then as the project goes on.after we get started we're doing.construction this swip document is.actually a living document that's going.to continue to grow so throughout the.project we're going to do inspection.reports and every time we do an.inspection that is more paperwork that's.going to be added into that swift.document so it will grow and grow and.grow throughout the project so getting.started where do we go to find these.permits where's the document that I need.to fill out well if you go to the a DEQ.website they have a section in their.water division and you can see down on.the left hand side general stormwater.permits so go to that section you can.find.Notice of Intent you can basically find.all of their documents online and since.they're a portal they're requesting you.know everything be submitted online.anyway this is definitely the way to go.at one time when things were all being.turned in on paper it was coming tough.to keep up with where was the most.recent version and there were a number.of cases where folks who fill out you.know they had saved here's the NOI form.I saved it I used it on this project so.I used the same form on the next project.well they updated the forms then they.would send it back and it took a while.to get projects started because of just.the confusion with versioning on the.forms so on their website you will see.that there are PDF and word versions of.their forms again pull these off of the.website when you're planning to use them.fill it out and then it gets submitted.through the e portal this is a notice of.intent and one of the if you notice on.the email that you got about the webinar.it said that you could look at the.materials ahead of time you should be.able to also access those afterwards the.plan was for you to be able to look at.them during the webinar but apparently.that little box did not show up in your.view panels so I've got some pictures.here but this is a page out of the NOI.the 2018 version and it's pretty simple.to fill out in the beginning it's who.owns the project mailing address a lot.of contact information who's going to.pay the bill and that sort of thing but.then it goes on to ask for information.like a description of the project what's.the total area of the project how many.acres are going to be disturbed they.also want to know about the receiving.waters and if any of those are sensitive.water bodies so there is a 303 D list.that's available on their web site as.well and that shows hourly raining water.bodies that are already impaired for.some reason we're going to include.information about endangered species in.wetlands and any topographical features.they want to see a topo map or at least.some type of a site.that shows the direction of water flow.so that gives them an idea on a.two-dimensional piece of paper.what's the lay of the land how does that.work so they get an idea of where water.is going to be concentrated where you.might have water flowing faster it's a.lot of good information and then also.runoff coefficient after construction if.you let's say we're doing a we're gonna.build a Home Depot store and it's in an.area that was originally a pasture lots.of thick vegetation when it rained most.of that rain water will soak in in that.location because the vegetation kind of.soaks it up and takes it into the ground.but then if we build something like a.Home Depot store and have a giant.parking lot all of those surfaces are.now hard surface so that changes the.amount of runoff and now we have a whole.different issue instead of that water.soaking in it's going somewhere else so.we've got to be able to accommodate that.extra water that will run off of the.area and then vegetative buffer zones.we'll talk about later but we've got to.make sure that we create a buffer close.to our water bodies to make sure that.we're doing everything possible to keep.sediment from getting in and then we may.have some issues with utilities.sometimes projects will have utility.maybe utilities have to be moved.utility companies may or may not be.included in the contract for the project.so that's something that we need to be.aware of and know who's responsible for.that.one of the important pieces of.information on the NOI is they want to.know where is the receiving water so.they have a map on that noi form that.will show you so let's say we are in.eastern washington county which is up.here that would be an area for case that.the ultimate receiving water would be.the white river so over here let's say.in 4b again that's a different.area but still number four so the white.river lots of or most of the northern.areas of the state are going to fall.into the white water river shed so that.means that if sentiment gets loose it's.going downhill it's going to end up in a.ditch and then it goes to a creek and.then a bigger stream and a bigger stream.it will ultimately end up in the white.river and so that is considered to be.the ultimate receiving water in Central.Arkansas we're probably looking at.mostly in this central and western area.it's going to be in the Arkansas River.and then you can see the others over on.the eastern side we're going to have an.area that's going to go to the.Mississippi River directly but even even.all of that it ultimately is going to.end up in the Gulf of Mexico.and somewhere in the ocean so they're.looking at what are those ultimate.impacts within the state of Arkansas so.those are the rivers that we have in the.state and then impaired waters what if.we are going to be impacting a water.body that already has some type of an.issue.the latest 303 D listing is the two that.2016 that's on the a DEQ website and you.can look at it there's a long list that.you can download I kind of like the.picture version so they have a state map.and then they also have maps that you.can pull out back County and it will.show you for instance the little pink.lines here show you what water bodies.are impaired that means there's already.something wrong with it it may be.nitrates or it may be phosphorus or it.could be LED or mercury there could be.anything wrong with it but in some cases.it's already impaired for sediment and.that's when it really matters to us.because those are the primary.considerations during construction the.turbidity if it's already got a problem.with turbidity and then we come in and.do construction on top of that we're.going to have more of an issue so it's a.little more sensitive and we have to be.extra careful so there are different.categories category 5 means that it's.impaired category 4 a means it's.impaired and the.an actual numerical limit that has been.established for that component to.sediment all right there are some other.types of waters that also require.special protection some of those are.extraordinary resource waters.ecologically sensitive water bodies.natural and scenic rivers public water.supplies cold water fisheries and of.course any impaired water so we've got.to be extra careful with but these.really are anything that like public.water supply the more we allow pollution.in that water body the harder our water.treatment systems have to work to clean.it up.ecologically sensitive maybe there's a.species that survives specifically in.that type of habitat in that water body.and so it is sensitive for whatever.reason and we need to protect that we.have other water bodies that are very.special for natural and scenic reasons.so whatever that reason is those are.going to be the ones that we have to be.extra careful about they're going to be.a little more high-profile so to speak.now a little bit more on this TMDL this.is called total maximum daily load so.what that's talking about is that there.may be a numerical limit that's going to.add together the natural kind of the.background effects of what's already.wrong with that stream and then we're.going to have a total limit and that.will include both the background plus.whatever we add to it for the purposes.of construction so if we do allow.sediment to leave that job site that can.get added to it and that has to stay.within a particular limit okay the other.thing with TMDLs is there will be some.cases where you have some additional.reporting requirements so be aware of.that hey endangered species is another.topic we're going to be kind of careful.about there have been cases where we've.started a construction project and then.an endangered species was discovered and.it will shut down construction very.quickly.the US Fish and Wildlife website has.some good resources for time to identify.this and this is something that's.difficult for me because I don't feel.like I'm an expert on this at all that's.just not my thing I don't know about all.the different species but what this.website will do is give you some tools.to at least do some investigating if you.happen to work for the d-o-t then you.also can contact a special study section.with an environmental and they have some.folks that know a lot about this but.there are lots of rules like you can't.do construction within 860 feet of a.bald eagles nest I don't know where.those nests are and that makes me.uncomfortable but what this forum is.when you sign this evaluation form.you're certifying that you've done.everything you can to try to find out if.there's something that could be an.endangered species that could be.impacted by your project and you're.doing your best to not create that.impact so on the Fish & Wildlife.Resources on their website they have.some pages that look at particular.species that are endangered they have it.by county so you can go in and look at.the location associated with your.particular project and look and see is.there anything in particular that I need.to be worried about and then you know at.least what to investigate further.another thing that goes into our Swift.is a lot of information on the.topographical features so one way to do.this is to get a topo map of the area of.your project and these contour lines.give us a lot of information in terms of.what's the lay of the land how steep are.these slopes so I know where the up.hills and the down hills are and I know.that downhill is going to be obviously.where water goes so I can start getting.a lot of information just by looking at.the elevations the orange line is a 1500.foot mark you can see the 16 17 and 18.hundred marks so water is going to flow.downhill basically perpendicular to all.of these lines.so if I were to go in and put in arrows.that show the direction of water flow.now I've got a good idea of how that's.going to impact my construction site so.this is some of the information that a.DEQ wants to see on the front end of the.project.all right for instance right here I've.got this gray section and if you look at.this this whole area is all kind of.converging and you can see the little.the little stream area so we've got the.line dot dot line that's the stream and.you can see from these contours how.everything converges to that point so if.I had construction going on in this area.then that's gonna be something that.would be pointed out easily with this.type of a diagram all right and we've.already talked about the runoff.coefficient but this is just another.example to show how the amount of runoff.will change depending on the type of.surface that the rainfall is.encountering so if it's very thickly.vegetated we're going to get lots of.soaking in if it's a hard surface it's.going to runoff so our designs are going.to have to accommodate that change then.the vegetative buffer zones that I.mentioned these are areas where we've.got to preserve natural vegetation if it.is a typical water body say lakes rivers.streams I'm gonna have to preserve about.25 feet on either side of that stream.that's gonna make sure that I have a.natural filter that helps filter out the.sediment before it gets into the water.body that is required so as you're.looking at things like your clearing and.grubbing for the construction site are.you close to a water body and if so make.sure that all of your equipment.operators are aware that we cannot clear.right up to the edge of the water now.obviously if you're building a bridge.and you've got to get into that area.then there will be some justifications.but that is something that has to be put.in the swip and approved ahead of time.that's also going to involve your 404.permit through the Corps of Engineers.and your sta a through a DEQ right now.for our impaired water bodies anything.that's on that 303 D list that's going.to require a vegetative buffer zone of.50 feet and then it may be more if.there's something that's really.sensitive to a DEQ direct.Durr can actually assign a different.number like they may say a 75-foot.buffer zone for a special case but for.the most part your typical water bodies.will be 25 foot requirement you're.impaired water bodies have a 50 foot.requirement okay so more things in our.swip this again is really just your.implementation document which is great.to have it's a good communication tool.it helps you follow all the requirements.of the construction general permit it.makes sure that you're complying with.the permit lots of documents so it is it.can be a gigantic book but this is.something that is required for all sites.whether it's a large site or a small.site the difference is for large and.small the swip has to be approved ahead.of time for the large site and not for.the small site small site you just have.to have it available and it does have to.be on site at all times so if you were.to get a surprise inspection from a DQ.the first thing they're going to expect.to see is your swept information and if.you don't have it that's a really quick.fine that you can receive okay so when.we're putting together our swip this is.kind of where we get down to the brass.tacks on exactly what we're trying to do.on the project to keep the the water.bodies clean keep sediment contained on.the project so our goal is to remove 80%.of total suspended solids from flows.that exceed pre development levels so.think of it as when I do the project I.want the clarity of the water to be.pretty much as good as it was before I.ever did the project so that 80% removal.level it's just something numerical that.a lot of times we're not really doing.anything numerical to test that but it.needs to be pretty much as good as it.was before the project started so all of.our selections on BMPs and how we're.going to handle all of our stormwater.stuff that's our real goal and so we put.together a plan and we have to follow.the plan if we don't then we can get a.fine for not following the information.in the Swift document now one of the.materials that was provided to you in.that email beforehand was a template for.a swift document so if you've done this.before you've probably seen this but.this is really helpful because it steps.you through some of the information and.you can kind of fill in the blanks so in.this case we're in the general permit.which is ARR one five zero zero zero.zero and then you answer the questions.so you're going to give project name and.location parcel number if that's.applicable but the operator name and.address is important because that's your.contact information then we get into the.site description we're going to talk.about the major sequence of activities.so specifically when are we disturbing.soils maybe I'm doing the project and I.can work on one end of the project and.then later work on the other end so.think about those staging opportunities.that can help cut down on the amount of.erosion and sedimentation there's.information on your soils your runoff.coefficient responsible parties.receiving waters and then if you are a.small jobsite that's less than five.acres there's a different template that.can be used and it's kind of a.scaled-down version of the same sort of.thing so it makes it a little bit.simpler but you're swip will include.this template it's also going to include.a number of things like the project.contract your plans and specs all of.your permit documents like your 404 or.401 MS forest there's lots of acronyms.and numbers here but there are a lot of.documents that are required the.description of all of your BMPs and.locations for those policies and.procedures that your agency uses.relating to stormwater so any like.standard language that you use to say.yes we're going to follow the rules.that's something that goes in your Swift.then when you fill out that Notice of.Intent that becomes part of your swip.when they send back your letter that.says you're authorized to start work.that's called the notice of coverage.that becomes part of your Swift when you.do your ends.affections throughout the process that.becomes part of your Swift so any.updates on your plans and your drawings.any signatures and certifications that.all becomes part of your Swift now.specifically on your project drawings.you're going to want to include some.things like the topo map pre.construction and then what are your.estimated slopes after construction are.you taking your relatively flat area and.cutting into something and making some.steeper slopes and if so that will.affect your stormwater flow after the.project you're going to want to make.sure you have the direction of.stormwater flow you'll have to know that.how much area you're going to disturb.you'll want to be sure and mark any.areas that you particularly don't want.to disturb and that's something that a.DEQ is really encouraging on projects.the locations of major controls.don't forget about construction exits.and concrete wash out areas off-site.materials if you've got any borrow areas.or if a contractor has an equipment.storage area that's something that.you'll want to make sure and note on the.plans you're going to want to make sure.that the location to water by water.bodies floodplain boundaries all of that.is marked they are going to want to know.that discharge locations and that's.something that's going to change.throughout the project because if you're.cutting into the ground at changing the.lay of the land that's going to change.where downhill is and so a DEQ wants to.see how does your project change the.flow of water you are also required to.have a legend on your on your plan sheet.but show what those different BMPs are.and then also think about your storm.drain inlets all right so we've done.lots of paperwork and we said that if.you have a large construction site then.you have to turn in this Noi you have to.submit a copy of your swip ahead of time.and get permission from a DEQ to start.the job but if you are a small jobsite.then.you don't have to do that you still have.to put this foot together but you're not.submitting and in a lie instead you're.gonna go on their website and you're.gonna pull down this sites with.automatic coverage it's a construction.site notice so it means for a small job.site we're automatically covered but.we've still got to post this information.at the job site so you've got to make.sure and download this fill it out and.then it will be posted at the site all.right.any questions up to this point feel free.to unmute ask questions type something.in the chat pod anything that I didn't.touch on that you were hoping to hear.about all right well the next section is.on temporary controls but I think this.would be a great time for a break so I'm.gonna start the timer and give us ten.minutes all right that's the end of our.ten-minute break what I would like to do.right now is put up another poll and.this one this one is about how you feel.your agency perceives stormwater.management and just says is it a.priority in your agency so yes no and.then sort of so if you would fill that.out.okay I'll give you a couple more seconds.and I'll close the poll all right looks.like everyone has said yes so that's.good and I think I think we all realized.that it should be a priority sometimes.it's difficult to balance actually.getting the construction done with.really focusing on the stormwater part.and so that's why it takes regulations.laws permits those kinds of things when.we have some rules put in place it makes.it a little bit easier to because it.forces us to make that a priority but I.think everyone would agree that it is.important so now what I would like to do.is to go through that's probably the.meat of the presentation is to go.through some of the temporary controls.like what is it that we actually do.during construction so we call these.things BMPs which are best management.practices and those BMPs.are I don't like the name of it because.it doesn't say anything specific about.stormwater but what we're talking about.are those things that we put in place.during a construction project to help.manage erosion prep trying to prevent.the erosion and then if we can't prevent.the erosion we're going to try to manage.the sediment that results so temporary.measures again are it's going to be.devices or procedures that are employed.during construction to control erosion.and sediment until a permanent measure.can be provided so it's just during the.project while we're making the mess we.want to try to provide some direct.protection to the soil surface we want.to try to control run on that's the the.water that might run onto our job site.that makes more of a mess so we want to.have some control over that we want to.remove any sediment from the stormwater.that's running through the project.and then we want to have control over.the runoff so any water that's leaving.we want to make sure that we're getting.that sediment out of the water as much.as possible before it leaves our jobsite.so prevention really is the biggest.message here so it's easier to prevent.erosion than it is to control sediment.and I think that's kind of one of those.logic things again because if we can.prevent the erosion from happening in.the first place then there's really no.sediment to worry about so we don't have.to worry about controlling it once.sediment gets very far away from its.original source it gets infinitely.harder to try to control so the more we.can prevent the erosion the better off.we're going to be so anything I can do.to stabilize the jobsite stabilize those.soils limit the amount of exposure of.unmanaged soil retain any sediment that.I have on side of course if I have that.and then manage that runoff those are.kind of going to be the steps involved.so some things that I can do to try to.prevent the erosion from happening in.the first place obviously would be to.preserve the existing vegetation.everything gets a little bit loose when.we start scraping the ground and so then.we have all of that soil that's just.ready to go somewhere it's ready to head.downhill as soon as it rains and we.don't have a 100% accurate forecast on.what's going to happen during the.project so we may get that surprise rain.shower that creates some definite issues.so anywhere that I can keep the existing.vegetation in place that gives me that.root structure maybe it's trees bushes.shrubs weeds.it can even be you know small grafts.whatever it is any type of vegetation.does have that root structure that helps.hold the soil in place so if there's an.area where you really don't have to do.any construction maybe it's within the.right away or it's within the.construction limit just because it's in.that area doesn't mean that it.necessarily has to be cleared there may.also be some opportunities to delay when.we do that clearing so instead of.clearing the whole area at once maybe we.can wait a while.do the other part another time.remember that rule and buffer zones.anytime we do have a water body in that.immediate vicinity we want to make sure.that we're allowing a 25-foot buffer.zone so I am required to have that.vegetation in place for an impaired or a.special category water body that's going.to be a 50-foot buffer zone that's.required another thing that I can do is.kind of along these same lines is.scheduling let's say that I'm doing and.building a small bridge and during the.construction I have to put up a.temporary bridge that involves a detour.route to go over to the temporary bridge.well not all of the area has to be bare.soil at the same time I might be able to.they do them the construction of the.temporary bridge and that would involve.an area over on that side that needs to.be really managed well but I don't want.to clear this area of where the main.bridge is it's being that'll have to be.torn out rebuilt I don't want to do any.of that demolition and that clearing.until I have to I want to focus efforts.on maybe stage one of the project and.then move over to stage two after I've.stabilized that first area so anything.that we can do to kind of break the.project into chunks that scheduling can.really do a lot of good for us and it.doesn't really cost anything in the.context of materials for sediment.control another technique that's it's.not really free again but it is.something that's a low cost idea is.called tracking or sometimes we hear it.called track walking this is where you.take tracked machinery and you drive it.up and down the slope and what happens.is those tracks put little indentions or.tiny little stair steps if you'll.imagine it that way into the surface of.the slope so when a droplet of water is.at the top of the slope and wants to run.straight down that hill it's going to.encounter all of those little stair.steps so that will slow it down so we.reduce the velocity that means we're.going to reduce the potential for.erosion and then also in those grooves.that are created we can trap sediment.and if we're stabilising and and seeding.that slope it might also trap seeds so.that would look something like this and.this is a great technique one of the.biggest things those that you have to.implement this correctly that means.you're driving the machinery up and down.the slope maybe not the most comfortable.thing to do so sometimes we'll see this.done wrong and here's an example this is.tracking the wrong direction so what's.happened here is that we've driven the.machinery sideways across the slope so.we get the advantage of the compaction.of driving that heavy equipment to sort.of pack that soil into place but we've.also created grooves which looked a.whole lot like rills those reels are.kind of artificially created but that.that's a channel that's a place that's.going to create more concentration of.water it's going to accelerate the.amount of erosion so by tracking it the.wrong direction we're actually doing.more harm than good so make sure that.that is communicated well to the.equipment operators and that they know.which direction that has to be performed.next I've got silt fence and this is.probably the most common item that you.will see on any construction site in.terms of erosion the sediment control.and I think it's kind of a we think of.it well I've got soap fence I'm good to.go I've done my erosion control so silt.fence is a great tool it works in a lot.of applications but it's not always the.perfect solution but what it is is a.vertical barrier of filter fabric it's.used to contain sediment and it's gonna.work best if I have that Overland sheet.flow kind of spread out everything's.trickling across not a real high.velocity not real concentrated but I've.got a lot of area to cover this is a.great application for silt fence for.that reason a lot of times we'll use it.to establish perimeter control we might.place it at the toe of fill slopes we.can also use silt fence around a drop.Inlet and then along streams and.wetlands and a lot of times if we've got.say a sensitive stream or wet.area I might use silt fence in addition.to some other techniques to try to keep.sediment from getting into those water.bodies we've got to make sure that we.install silt fence correctly the water.flow needs to go toward the fabric side.so it's the filter fabric that's placed.on these wooden stakes and it's.stretched but also the bottom of it has.to be trenched in and that's possibly.the most critical feature of a correctly.installed silt fence we've got to have.the tail in the fabric that goes down.underneath and then we've got compacted.backfill back on top of it to hold the.tail of that fabric in and that fabric.will have either a j-type shape or at.least an L shape where it is buried in.the ground because if it pulls out then.we've got a gap underneath and it's.going to be easy for water and sediment.to escape which completely defeats the.purpose in order for our silt fence to.work the best we need to make sure that.it follows the contour of the land and.find out what I mean is follow a line of.equal elevation so if the silt fence is.level that means the water that.approaches it will also be fairly level.and that keeps it spread out silt fence.is a great tool but it's not super.strong so if I have a really.concentrated flow of water hitting the.fence in one spot it will probably blow.out so if I can keep everything balanced.and even out I'm going to have a lot.more success with that installation and.then at the end of the fence you don't.want to just stop abruptly you want to.make sure that the end kind of angles up.the slope a little bit to keep water.from going around the edge as far as.installation this can it can be done by.hand and that's done very commonly if.you maybe hire a contractor that has a.subcontractor that does nothing but silt.fence and erosion control type.installations they may have a trenching.machine and I like that because I'm kind.of lazy and I like the easiest way to do.things.so in the.case what's happening is the tractors.got the little trencher and it digs the.trench and then it places the roll of.fabric as it goes so the tail of the.fabric is pushed down into that trench.the other thing to think about is the.spacing of the stakes there are.different manufacturers that have.different specifications but for state.specs for our dot there is a maximum.spacing allowed of 6 feet and I think.that is a good practice good rule of.thumb regardless of what agency you're.working for.because silt fence is just a fabric it's.not really strong so most of the.strength that's really going to be.dependent on those stakes and if they're.more than about 6 feet apart and it's.going to be a little harder for it to.function now to highlight the importance.of it being trenched in here's a picture.obviously there's a little bit wrong.with that and it's a great visual.because you can see that when the fabric.is not trenched in we've got so much.potential to lose sediment from the job.so does have to be trenched in for it to.function we can see daylight so you know.water is running under it Sentiments.going with the water so we're losing a.lot of material from the job site in the.next one this is an example of how silt.fence does not perform very well in.concentrated flow areas so you can see.there's a lot of sediment there is some.indication here that there were maybe.some extra stakes provided to try to.make it a little bit more sturdy but you.can see lots of sediment here at the.fence itself and then if you look past.that on down the hill you can see a lot.of sediment than his over top to the.fence and run down well that is off of.the job site so now we have no control.over that sentiment next time it rains.it's going to continue to move downhill.and it will eventually end up in an.ultimate receiving water so that's what.we don't want to see happen now for.highway type projects any roadway is.going to be fairly linear so as far as.the project site itself.we're looking at kind of a ribbon and we.tend to have these construction limits.or right-of-way limits and that's.oftentimes where we put the silt fence.and that's exactly what happened in this.case we're gonna silt fence that comes.just along the side of the road and that.has variability in the the grade so.we've got a downhill then we've got an.uphill so it makes sense that's.obviously downhill is where the water is.going to go that's where the sediment is.gonna go with it but what did we say.about installing silt fence we said if.we can install on the contour we're.gonna have better results well this is.along the edge of right away we don't.have control over that we can't make it.all level so what are my choices well I.could try to do something else try to.catch that sediment somewhere uphill so.track it back where is it coming from.and is there something else that I can.do before that much sediment would get.to the silt fence my other option would.be to change the layout of the fence.itself and try to force it to follow a.contour line so a line of equal.elevation that means my fence is going.to have a bend in it but you can see.what would happen here then is that that.amount of sediment would actually be.divided at that front point of the silt.fence so half will go to the left half.would go to the right now those sections.of fence are only having to carry the.load that's half of what it was in this.instant so it looks a little weird if.you are placing the silt fence and it's.got all these curves in it it looks it.looks really odd but it can function.very well now that's not always going to.work because I may not have the space to.accommodate that to give it a line of.equal elevation but it's something to.kind of keep in mind as a tool in the.toolbox and if that's an option it's a.great technique and it can be very.helpful another situation that we get in.with the right-of-way line not really.being where we would like it to be it's.certainly not following a contour but we.don't have control over that.so in this case.we've got water that's gonna run down a.hill and the silt fence is just going to.help concentrate it which is exactly.what we don't want to do because at the.bottom of the slope we have a gap we've.placed a pipe you can see at the very.bottom of the picture a new pipe has.been placed the fins had to be cut to.get in there and get that work done but.number one as soon as that is in place.we need to restore that fence because.water is running downhill sediments.running downhill and we are just.funneling a whole bunch of bare soil.right to a downhill location in the pipe.is placed at a natural flow line and so.obviously that is where water wants to.go so it's gonna take a lot of potential.contamination with it.so as soon as we get that pipe in place.we want to restore the fence but that.still doesn't really fix the fact that.up here at the top of the slope the.fence isn't really doing what it's.supposed to do the fence it's going to.work better if water flows toward it but.water it's not going to flow sideways.it's gonna flow downhill so what we can.do is another technique that's called.Jay hooking and we can install short.sections of fence that actually do.follow the contour so we've got a little.section that comes out and we can catch.some sediment as it goes down the hill.then later we've got another short.section that will stick out and that.follows the contour that's a equal.elevation line and then just do that in.section so it separates the amount of.sediment that has to be caught in any.given location and it gives us little.segments that do follow best practices.for silt fence installation silt fence.is surprisingly strong when it is placed.with all of those best-case scenarios so.in this example we have it in a very.level area so I do have a line of equal.elevation I've got tons of sediment in.there it's really amazing what it can do.but it's only functioning that way just.because we have best-case situation.we can't leave it like this though so.even though it's kind of a cool picture.to look at what I want to make sure that.I'm doing is cleaning out a silt fence.anytime that it has reached 30% of its.capacity or about 1/3.so silt fence fabric is typically sold I.guess the most common is a 36 inch width.so if we have at least six inches tucked.in to make sure that it's trenched in.properly that leaves 30 inches above.ground then if it's a third of the way.fuller about 30% capacity that means.about 10 inches it gets that full of.sediment we need to make sure we're on.top of the maintenance aspect and get in.there and get it cleaned out here's.another application for silt fence and.this is something where it's performing.very well you can see the water and the.sediment that's been collected by that.silt fence it's kind of dirty but that's.okay because we've got it contained and.that's our goal but right over here to.the right you see that there is an.active stream and that is a natural.water body that we definitely don't want.to pollute so in order to do just.something a little bit extra to protect.that stream not only do we have the silt.fence but you can see the rock.reinforcement that's placed on the back.side of that so that if there were a.section of the fence that pulled out of.its trench then we have some rock in.place that can also act as a filter so.it's a filter it's also reinforcement.for the silt fence so it's kind of our.back-up plan to make sure that we don't.risk polluting that stream so that's a.good technique another common BMP is the.ditch check which is it's got several.names you could call it a ditch check.check dam barrier dam lots of different.things so these can be constructed out.of rock sandbags waddles several.different materials but it's basically a.material that's placed across a channel.and it's going to set up kind of a dam.that's going to reduce the velocity of.the water and hopefully slow down that.concentrated flow so this is a technique.that we're going to see.in concentrated flow areas that works.out well but we do want to be careful.that we never place these in an area.that is a live stream because those tend.to be safe havens for habitats and so.the different little critters that live.there don't need the flow.characteristics change so it is not okay.to put these in a live stream very okay.to put these in say roadside ditches now.installation is again key in making sure.that they perform the way that they're.supposed to one of the key factors is to.make sure that we have a six-inch notch.in the top so that six-inch notch is.going to make sure that we are.maintaining the correct placement for.the flow line this water will find the.lowest point so we're going to keep it.concentrated right in the middle of that.ditch we want to also make sure that the.sides extend far enough up the slopes.that water's not tempted or doesn't have.an opportunity to go around the edges.we're going to also put some material at.the toe so when water does build up.behind that check dam and then spills.over the front we don't want it to scour.that spot so we've got extra material.there make sure that the material is the.appropriate size and that you don't.always know sometimes we're bound by.what's available and what we have the.opportunity to use but the larger the.rock the stronger the check dam will be.so that is something that you kind of.get a feel for after a while the maximum.drainage area for rock tips check is.about 10 acres so a series of these.could handle typically that much of a.drainage area now in terms of.installation we also have to consider.the spacing and we don't want the toe of.the first on the uphill one to be any.higher than the tip top of the next one.down the slope so in other words think.of this line L water is self leveling so.that's how much capacity that ditch.check has so if we put them too far.apart then we're going to get more.velocity built up and we'll have.water that just sort of shoots over the.top of the next one and it's not really.getting a chance to slow that water down.as much as it should in the picture on.the bottom left of this slide you can.see there's a series of ditch checks and.these are made out of sandbags and the.steeper the slope the closer together.they're going to have to be these are.pretty close together so just looking at.the geometry of this diagram at the top.it makes sense that the steeper that.ditch is the closer together we're going.to have to place those ditch checks in.order to give them the ability to slow.the water down so when the water slows.down it kind of pulls up behind that.ditch check when the water stops or at.least gets very slow that's when we have.the potential for sediment to settle out.of suspension from the water so we're.trying to catch that and keep it under.control we'll trap it behind that ditch.check and then be able to clean it out.and dispose of it sometimes they don't.work sometimes we have too much rain and.it just blows it out and this is kind of.a common problem with ditch checks.depending on the type of storm that we.had and again we can't always control.that so if you had sandbag ditch checks.and they blew out the stronger material.would be Rock and if the rock bits check.blew out then I would recommend larger.rock so and there's just kind of a.series and what do you expect how much.flow do you expect if you've got.knowledge of you know if you're a field.guy and you've been out in that area a.lot you know how hard it rains and where.those problem spots are you may already.have a good idea that I know somebody.drew up these plans and it said to use.sandbag pits checks but I don't think.that's going to hold I think we need.Rock go ahead and start with that make a.change in the swip and implement that.change that's perfectly valid because we.don't know until it happens sometimes so.anytime you do have a rainstorm it's a.good idea to drop through the job check.those stitch checks make sure that they.are still intact because if it rains.again and this is blown out then it's.not doing you any good at all be sure.and check the.area for erosion that would be an.indication that you're getting some.higher velocity water that's going over.the top of each stitch check and then.clean it out when it's about halfway.full so the rule of thumb for almost all.the BMPs is clean them out when they're.halfway full.but for silt fence we had the exception.that one was 1/3 because it's not as.strong of an item but everything else.pretty much is cleaning it out when it's.50% full so here's an example of one.that's definitely full but it's done a.good job it's done what it's supposed to.do so right here we see maybe a little.bit of sediment that's moved on down but.in a series of ditch checks we do have.multiple opportunities to trap the.sediment this particular ditch tank has.caught just a whole lot but it's time to.clean it out if it were to rain tonight.after this situation and the ditch check.isn't going to do a lot of good but if.we get that cleaned out and stay on top.of it then it's gonna be able to perform.it already has shown that it can do a.lot of good so we want to get it cleaned.down and let it try it again other.materials can be used for dis checks.waddles is one of the newer types of.things that we're seeing pretty commonly.now it's basically just a tube of.netting that's filled with coconut fiber.or wood fiber or some type of organic.material they come in different.diameters 12 inches 18 and 20 inches are.pretty common then these are used to.block or divert stormwater so they can.be used in a lot of different situations.you can put sections of them in a ditch.use them as a ditch check you could.actually place them like you would place.silt fence you can even use them for a.diversion installation of waddles the.main thing is to make sure they stay in.place when they first came out a lot of.folks use rebar or Stakes and just kind.of tacked them in place and that tended.to bust some of them open some of them.work some of them didn't but there's not.a requirement to trench it in so common.sense would tell us that if this is.very lightweight material which it is.very fairly lightweight it can actually.be lifted up in the heavy flow times and.then sediment can escape under it but.there are applications where maybe you.can't get in next to curb and gutter to.get silt fence placed without really.tearing things up it's a great.application putting your waddles they do.recommend that you put just a slight.trench where the wana will be placed and.then use two steaks and an angle come a.cross stitching format to hold them down.and keep them from being able to lift up.so that's a good technique the picture.on the right at the bottom is a special.bracket this is a particular company.that had their own installation method.so you'll see different things but just.as a normal generic type of installation.I think that the shorter steaks with the.tepee effect works very well the other.thing about models is that apparently.they're very tasty cows kind of like.them and so this was a project that I.drove by on a Friday notice the cows of.course I had to pull over and make.pictures by Monday the entire length of.that stuff was gone so pretty yummy.stuff so pay attention to where you put.them a similar type of thing is a filter.sock so it's the same concept.it's still kind of a mesh tube and it's.gonna be filled but this is going to be.filled with non treated wood something.maybe compost something it's gonna be a.little bit heavier but this one is not.really to serve as a diverter it's not.going to block the water it's called a.filter sock and it's intended to do.exactly that filter the water so it does.let flow move through more so than what.the waddles would allow typical.diameters are going to be kind of like.the other anywhere from a duck to about.24 inches this is a great way to protect.sensitive waters because it does allow.natural flow to go on through to a water.body.but it doesn't allow the sediment to go.through when it gets wet it's pretty.heavy so it tends to stay in place you.do have to stake the ends a lot of times.and you may have to place some stakes to.keep it from rolling down a hill but.they don't require trenching on these a.lot of times you'll see short segments.of these placed in town where you have.curb and gutter so if you place this.across that Inlet it can be a very good.way to allow water to move on through.you can block the sediment get it.trapped but in curbing gutters situation.you don't want to completely block the.water because then it's going to back up.into the travel lane that's going to be.a safety hazard for drivers so a filter.sock is a very good technique to put in.those particular locations and obviously.if you're on asphalt or concrete you're.not going to stake them in very well but.I've seen a lot of folks put like cinder.blocks I want something heavy to hold.them in place.and that tends to to do the job here's.another diagram of some recommended.installations again that tipi kind of.system with the two stakes and an angle.to hold it in place again these are.probably a little more they have better.ability to hold themselves in place.because when they are wet they get very.heavy.all right are there any questions was.there a hand that had gone up nope.all right well keep moving another kind.of a new idea is called the triangular.silt dike and this is a kind of a.plasticy foam triangular shaped block.it's reusable it's durable but then we.take that and we cover it in your filter.fabric and then they can be put in.different places different shapes to be.used for ditch checks diversion ridges.it can use them as drop-in let soap.fence.temporary slope during there's a dozen.and one things that you can do with them.so they're pretty neat and since they.are reusable you can just rewrap them.with the filter fabric and move them on.to another place so it makes it a little.bit less expensive when you can recycle.those and use them in different.applications and they are I have not.driven over one but they do advertise.them as durable enough to drive over.here is an application for triangular.silt dikes as a ditch check and so you.can see they've taken the sections.they've wrapped them in the filter.fabric and then placed them and you do.have to staple them down to keep them in.place because they're pretty lightweight.but one thing I would point out is the.one that's kind of in the background of.the picture.that one's a lot longer and it looks.like it's gonna do a good job of.trapping the water forcing the overflow.point to be right here in the middle.having that six inch knot but the one.that's in the foreground of the picture.it's gonna be more of a and I'm not.really sure that we've gone far enough.up the slope I guess I don't know if we.can if the water would want to go over.the middle or if it would want to go.over here around on the edge and so.looking at that you know a picture.depends on the angle but if you were.actually installing these that would be.something to watch out for make sure.that it does extend far enough up that.slope to force the water to stay in the.flow line of the ditch where it needs to.be.all right our next topic is Inlet and.outlet protection our job here is to.protect inlets and keep sediment from.entering drainage structures so.basically we are in a situation where we.know there's the potential for sediment.to go in the drainage structure but.that's exactly what we don't want so.like our storm sewers during.construction this is the stuff that has.to be placed first because it's at the.bottom that's where water wants to go it.is the natural lowest point but since.it's at the bottom we have to put it in.place and then we go up with the.structure of the pavement so for that.reason we're making a mess right after.we put in a brand-new pipe or a brand.new Inlet and it has lots of potential.to get clogged and if it gets clogged.during construction we've got lots of.other problems long term so we need to.protect those inlets keep the sediment.from getting in and protect the.integrity of what we're trying to build.now on the outlet side if we did a good.job on the inlet we shouldn't have.anything going on at the outlet in terms.of sediment so it's a great idea but we.all know in reality sometimes sediment.will get in those drainage structures.and if we have enough water flow it'll.push it on to the outlet so we need to.trap it there because usually at the.outlet we're getting close to the edge.of our work area and once it gets off of.right away we really can't do anything.with it so we've lost it once it gets.passed right away all right the other.thing that can happen at an outlet is.that once the water is confined say.there's a pipe maybe a cross pipe under.the roadway the outlet of that pipe is.the location where all that water has.been concentrated and then it comes.right out the end of the pipe and it has.really a pretty good velocity typically.so it has the potential to scour at the.outlet we don't want that to happen.because then that's creating more.sediment that's going to run down.so let's look at some of these Inlet and.outlet situations this is a drop-in.let's up fence and this is a pretty.classic type of construction where we.would build a box out of two befores and.then we're going to wrap that with the.silt fence fabric so that protects the.inlet keeps the sediment out it's not.perfectly clean of course but it's going.to keep a lot of that sediment that's.uphill from the inlet from being able to.come in another kind of a newer type.item that's available is called an.erosion eel and this is something that's.very good for this type of application.the eels are they're not quite twice as.expensive as the waddles and some of the.other items but they are they do tend to.be a little more expensive but it's a.woven exterior but it's kind of shredded.rubber fill so it's a pretty heavy item.but you can lay it down around the edge.of that Inlet and it's going to protect.it it will keep the sediment out of it.when you finish in that area and have.everything stabilized you can pick those.up move them to a different location so.they're kind of handy in that respect.but because of the cost you're not going.to see them used like silt fence.applications you're going to see I mean.these very small where I don't have to.buy a whole lot of linear feet of it to.be able to get the good out of it so it.they will advertise it for lots of.things but sometimes it is cost.prohibitive the nice thing about is.because they're heavy.no trenching needed you just lay it down.while you need it when you don't need.any more you pick it up and move it.[Music].years ago we use straw bales for lots of.things and here's an inlet protection.attempt but you can see that it's not.working real well lots of dirty water.headed straight into that Inlet and this.is one of the main reasons that straw.bales are no longer recommended now a.DEQ specifically states that straw bales.are not recommended but they do say that.you could use them in conjunction with.another sediment control measure in my.opinion if they don't like them I don't.like them I don't recommend them so.there may be a few applications where.they could be used with something else.but in general you don't want to see.that this is this is a great reason why.other ways to do inlet protection will.be things like the aggregate the top.left picture just shows aggregate and.you can see the edges of cinder blocks.that are stacked there at the inlet what.you can't really see in the picture is.that those cinder blocks are actually.wrapped with chicken wire because in.addition to not wanting sediment to go.in the inlet we also don't want the rock.to go in the inlet okay but that's a.pretty you know just a basic homemade.version you don't have to buy anything.fancy it's probably things that you.already have available on the.construction site so you can do a very.good Inlet protection setup just with.the materials available you can also use.sandbags.the top right picture shows how to line.up some sandbags for that purpose one.thing to be careful about is a lot of.times they do show kind of arching those.out away from the inlet a little bit to.give it some space but if you have a.heavy rainfall keep in mind how much.shoulder area you have is there room to.put the sandbag allow for some sediment.to collect and then also remember that.the sandbags will act as a dam and the.water will kind of back up across the.roadway so we don't want to create pools.of standing water which would be a.hydroplaning potential so we got to be.careful of that but if you have the room.to accommodate it this is a very easy.way to provide your Inlet protection the.bottom left picture is a filter sock so.it's actually all the way down the curb.but it also covers that Inlet so if you.have multiple inlets in a row you could.put the filter sock in those strategic.locations or you could just unroll it.and keep it in that entire area in this.case it's also being used it's I.wouldn't say functioning perfectly but.it's also helping to keep the sediment.from going out into the roadway.and then on the bottom right picture.this is just another type of inlet this.is more of a cross pipe situation but.using rock piled up around to make a.little bit of a dam to make sure that.none of the sediment is being able to.get into the inlet side of the pipe on.the outlet side we said the real.potential that's going to create the.most trouble in a scour so if we have.scour it kind of looks like our pipe is.too long but that's not really what.happened the pipe was fine and then we.just ended up with this material eroding.from underneath the end of the pipe so.that's what we're gonna try and prevent.here's a picture of one where we had a.really good attempt at outlet protection.which is generally just going to be.placing some large rock at the outlet.that's gonna be able to handle that.concentrated flow that comes out the end.of the pipe in this case we had a big.rainstorm and it blew out so generally.you say well if that route didn't work.then you're gonna try again with bigger.Rock this already was bigger Rock so.sometimes what you have to do is just.put it back try it again but here we can.see some pre looks like some pretty.heavy flow lots of energy in that water.so lots of potential but if this is a.recurring problem what I'm going to need.to do is go to the inlet side of the.pipe and try to figure out why so much.material is coming through at that.location and is there something that I.can do upstream to try to keep that from.happening okay or spread out the load.keep that concentration lower alright.another technique that we might be able.to use is called a diversion ditch or a.diversion berm and we can use these in a.number of different ways primarily to.either divert water to a certain.location or away from a certain location.so at the top of a slope I might be.trying to divert water away from an area.for example if I have a big field at the.top of the slope and water is running.toward my.work area and I've got exposed soil I.don't want all that water running onto.the site so I'm going to put a diversion. at the top of the slope to catch.that water before it gets on my exposed.area and take it somewhere else on the.other hand I may want to put a diversion.ditch they at the bottom of a slope and.make sure that I'm aiming all of that.sediment Laden water say into a sediment.Basin so it's a good way to make sure.the water goes where I want it to in.this little diagram it shows how the.diversion ditch will work we need the.flow coming in from one side and then.create some extra capacity for water so.a foot and a half minimum is what we.want to create so what we dig out to.make that ditch we're actually going to.pile over here on the other side and.that's going to be your compacted soil.that creates the berm that needs to be.at least two feet wide so that way we're.catching the water but we're preventing.it from going somewhere else here's a.picture of not a very well-formed one.but the concept that we're looking at of.trying to address that water at the top.of the slope and keep it from coming.down the slope this is later in the.construction project where we're trying.to get everything stable and we've done.a few spots that are not working out.real well but you can see that if we had.a nice defined trough at the top we.could really intercept that water before.it was running down the hill and.creating all of those rails and gullies.another way that we can use the.diversion ditches would be across the.slope as a slope break so if we've got a.really long slope sometimes that's just.you know water starts at the top it.moves to the bottom it picks up a lot of.momentum on the way down so by the time.it gets to the bottom part of the slope.it can really do a lot of damage so if.we put a terracing effect or trying to.intercept that at different points in.the slope it's going to shorten the.length of the slope and slow the water.down incrementally as it moves toward.the bottom so that can be.very helpful then at the bottom of a.slope we could put in a diversion ditch.again specifically they put it to move.the water into some type of a drainage.structure like a sediment Basin which is.shown here and then sometimes we might.use the diversion ditch as perimeter.control so in this case we're trying to.collect the water we do have a sediment.Basin over here the ditches leading to.it but all of that is just prior to a.silt fence so the silt fence you can.tell is kind of dirty so it's definitely.seen some sediment we've had some build.up there but trying to intercept as much.of that flow as possible so that we're.able to use the diversion ditch and the.sediment Basin as our primary control.then the sediment Basin I mean the silt.fence can be used as our back-up plan.can that last line of defense.the next technique is a sloped drain and.sloped drains are pipes that are used to.confine and carry water from the top of.the slope down to the bottom of the.slope and we're typically gonna see this.where we have an exposed area where if.water was just allowed to run down it.would really tear it up so in this.picture you can see the left side that's.all exposed soil if we let water just.run down that freely it's definitely.going to create some reels and some.erosion issues but if we can trap that.water somehow at the top and then run it.through that pipe instead then the only.erosion issue that should happen on that.exposed area is simply the raindrop.impact but we shouldn't have any extra.water running down the slope so in a.situation where maybe I put a diversion.ditch at the top of the slope I'm gonna.run that into the top of the slope drain.because eventually it's got to come down.the hill we're just gonna put it into a.pipe so that it's protected and it's not.actually coming in contact with that.slope and so we minimize the amount of.erosion and then in the right side of.this the picture where you've got all.the green grass that's where we've got a.section finish.and it's very well vegetated it looks.stable that's what we're gonna try to do.as soon as possible on that exposed area.so this is a technique that I can use.incrementally throughout the length of a.project work on a section get it stable.move on down the way here's another.example of using a slope drain but in.this case instead of having a clean area.running onto my jobsite my job sites.actually at the top of the slope but.that's just as dangerous because we make.a mess at the top that sediment wants to.run down the hill so here we're using a.sloped drain to protect the slope but.also catch that sentiment and catch the.water at the top so you can see at the.end of the slope drain there is a basin.or a sediment trap that's placed and.that is actually catching the dirty.water before it goes into the ditch you.can see in the ditch there are also.distinct so we've got this whole series.of items put in place we catch the water.at the top of the slope it runs through.the slope drain it goes into the.sentiment trap and that has a big enough.capacity that the water can sit still.that's exactly what we want because then.the sediment falls to the bottom and.then at the overflow point we should.have maybe not clear water but it'll be.clearer than it would have been.otherwise so that what goes down into.the ditch area hopefully is a little bit.cleaner it's not totally clean though so.we still have ditched checks within the.ditch line and that will trap some.additional sediment so we've got a whole.series of things in place to try to get.control over that sentiment before it.leaves the work area at the end of a.slope drain if we don't have something.like a sediment trap we're gonna want to.put some riprap or some type of rock.because again this is just like at an.outlet where we have a concentrated flow.and so all that water coming out at the.end of the pipe has the potential to do.some some damage for sure so we've got.ask our potential and by placing rock at.the outlet that's going to make that a.little bit more it's going to make.function a little bit better all right.the next topic is sediment basins and.this is something that years ago was.kind of a big fancy thing you didn't see.them all the time but now on projects.we're starting to see them more and more.it's a great technique they're very.functional it's basically a big bathtub.so we're creating a storage area for.water and we expect that that water has.the potential to carry a lot of sediment.with it but we have such a large volume.of capacity that it basically takes the.water in and reduces its velocity to.almost zero so the water against it.still all the sediment can fall to the.bottom and you can tell if you look in.this picture the water is pretty clear.so if it were to fill up we would have a.pretty good chance of clear water being.able to run over the outflow and having.the sediment trapped in the bottom these.are typically rectangular in shape.particularly for a roadway type projects.for site construction you have the.opportunity to make lots of different.shapes but keep in mind that the longer.the water stays in the basin the more.residence time it has to be able to get.the sediment to fall out so by creating.a linear more of a rectangular type.shape we're increasing the amount of.residence time so this is convenient for.highway projects but water goes in one.end we typically will see a link at.least twice as much as the width it.could be a lot more and then the depth.is somewhere between three and a half to.five feet so we're giving it a pretty.good amount of capacity sediment basins.are going to be good to place at ditch.outlets places where we are expecting to.catch a lot of flow with the potential.for a lot of sediment so at the end of a.drainage structure it is for.concentrated flow however we are not.allowed to put this in a live stream.because it would definitely change flow.characteristics and have a lot of.settlement there keep in mind the safety.factor if we're putting in basically a.big swimming pool sometimes these are if.you put one say next to a residential.area or school or a park a kids are.really curious and they'll climb down in.there and try to see what's going on.there have been some cases at residents.walking out to see hey what's going on.out here on the project and the edge of.the sediment Basin crumbled and they.fell in so three and a half to five feet.deep is deep enough for a person to.drown so it's a good idea to make sure.that they're well marked and the picture.on the left you can see there's a lot of.vegetation there so it's a little bit.more hidden and the construction fencing.helps keep people out it also makes sure.that your equipment operators remember.that it's there so they don't forget and.tumble in we can do some things that are.a little less formal than sediment.basins and this one is called a sediment.trap it's just again it's a less formal.version and in this application what.we've actually done is taken sediment.basins and ditched checks and come in.made a combination somewhere in between.so what's happened is that there's a lot.of concentrated flow in this location so.the ditch checks were placed replaced.replaced replace they kept blowing out.so what they needed to have was greater.capacity so by digging out a deeper.section behind that ditch check we were.able to increase the capacity it's able.to hold more water and operate a little.bit more like a sediment Basin then.water can go through the overflow.continue to the next sediment trap and.so you have that in sequence so each one.is able to do its job and collect some.of that sediment.all right the next one this is an.application where the idea is pretty.good we want to have an inlet that is.controlled sorry I don't know if y'all.can hear the construction in the room.next to me but that was pretty loud we.probably did come through sorry about.that but one of the big misconceptions.about silt fence is that at an inlet.like this in this situation we think of.it as being a filter because it is a.filter fabric however when you put that.fabric up and actually it functions more.like a dam so you can see there's not.much getting into the inlet and that was.our goal right keep the sediment out one.of the things that we have to watch out.for though is that once you have this.situation you have a lot of standing.water if we don't have a way to get that.away from the pavement structure we can.also cause some other problems related.to subgrade softening if you soften the.subgrade that's very hard to get it.compacted if you're centering is.something it's hard to compact pavement.on top of it so there are some things.that really don't have to do with.sediment but it has a whole lot to do.with the actual function and quality of.the pavement structure itself next we.have temporary stream crossings.those are areas where maybe we need.vehicle access but we're going to come.in contact with a stream so to be able.to get the project down safer bridge.construction we need to add access both.sides of the stream so that needs to be.done in a way that maintains the natural.flow of the stream it also needs to be.able to separate the potential for.contamination from that water body so in.this picture you can see there are some.pipes placed we need to have enough.piping put there to be able to maintain.the natural flow of the water and then.you see the layer of rock and that's.going to be our barrier or kind of our.cushion between the waterway and the.vehicle traffic so any mud that's in the.tires of the vehicle traffic or say oil.drops hydraulic fluid that kind of stuff.we don't want that getting into the.stream so we have to put together a.proper stream crossing to make sure we.don't have that interaction now this is.not good so you don't ever want this to.be on your project but what we see here.is evidence of tire tracks that run.right through a water body.but it's not a whole lot of water it's.kind of a small ditch here I'm sure in.high water situations you know heavy.rains it probably gets deeper but this.is something that is not not okay a DEQ.will frown very strongly on this so you.don't want this to ever be evidence on.your particular project so what happened.here somebody decided I can drive.through that I need to get to the other.side but for stream crossings they do.have to be constructed correctly and.they do have to be documented in your.swip so for a large project that's going.to be documented and prior approval.gained from a DEQ in this case we're.actively working in a water bodies that.means we probably have a 404 permit.maybe we've got an Sta a but there are.some other permissions that we've been.granted to be able to do the work and.part of the information we're giving to.them needs.to include the plans for this stream.crossing because that does have to be.approved ahead of time another thing.that we can do to try to reduce the.interaction between the mess that we're.making and an actual stream is a stream.diversion and this picture is not a.great one because it already blew out.but the concept was really good we're.trying to get some work done and what I.want to point out here is the use of.barrier wall sections with filter fabric.wrapped over them that's a great way to.kind of move the stream out of your way.so that you can do your work and again.not a great example because it did blow.out but you can see how those wall.sections are actually forcing the water.over into a different area to try to.separate it from where most of the work.is going on so anytime we can separate.traffic and work from a natural stream.fabulous that's what we want to do so.another option this is a stream.diversion as well but it's not really.moving the stream out of the way it's.just covering the stream so that it does.not get impacted by the mess that we.make so in this case we've got a large.pipe water comes in on the far side of.that box and it should be clean water.because it's a natural stream so we're.going to keep that encased in this pipe.long enough to get it through to the.other side of the work area and keep the.sediment potential out now I think we've.still got a pretty good amount of.potential for sediment to get into the.water here we need some more protection.around the edge of this pipe but the.concept here is good the other advantage.to this type of situation is that you're.not having to physically move the stream.so there's less concern with the ecology.and different habitats that might be.affected the other thing is that when.you're finished you still have this pipe.and you can use it in another location.for a different purpose all right on my.next slide this is something that we.never want to see this is just bad bad.bad so don't ever do that but we cannot.pile sentiment.in a stream so we're trying to prevent.the whole interaction between sentiment.and natural stream and this is exactly.the opposite of that so you can tell the.picture is old so it's not something.that's happened recently but just to.reinforce the fact that this would get.you in a whole lot of trouble all right.another feature that we need to think.about when we're developing our swim is.the stabilized construction entrance and.exit areas this is where we've got.traffic that comes in and goes out and.those trucks are going to have a lot of.mud in the tires which has the potential.to contaminate stormwater flow so we.need to limit the amount of off-site.tracking where construction traffic is.going to move from the construction area.onto the public roadway the other thing.about this is this is one of the most.common reasons that people will call and.complain about your jobsite is that.you're tracking mud out onto the paved.road they just watch their car now they.had to drive through that it is a safety.hazard because if your soil it has any.clay in it and that gets wet it can be.really slick on the public road so we've.got to make sure that we're keeping.those tires clean before we allow the.traffic to get out onto the public.roadway so to build a proper.construction exit we want to use at.least three inch stone needs to be.pretty chunky so it can knock them out.out of the tires that driveway needs to.be at least 12 inches I'm sorry 12 feet.wide it's going to accommodate at least.one lane of traffic but if you've got.lots of trucks coming and going you're.gonna want to see at least 12 to 24 feet.there the 24 feet should accommodate two.directions of traffic the length has to.be at least 50 feet but what's really.happening there is that we're trying to.give the largest vehicle tire for.complete rotation so that's four chances.for those rocks to knock the mud out of.the tires so that 50-foot length is kind.of a standard rule of thumb but keep in.mind we're trying to give every vehicle.tire for chances to knock the mud out so.if you have some of those supersize.trucks you know really big tires you may.need to go a little bit longer.than the 50-foot minimum another feature.here is that we want to put a filter.cloth below the aggregate and that's.going to help separate the aggregate.that we're using as our filter from the.natural soil that's underneath sometimes.the construction exit is good but it's.not great so we might need some other.things one of the things that I really.like is the shaker plate or the exit.grids and this is just a big metal plate.with some vertical fins on it that you.drive across and it helps knock the mud.out of the tires and then you can wash.this guy off and get it cleaned up as.often as you need to if you don't have.that I don't think it's terribly.expensive and some contractors will have.these and then just move them from job.to job when they need them but if we.don't have that we can go old school and.we can just hose off the tires now it's.some large commercial developments they.will actually bring in a thing that's.kind of like a car wash but the top left.picture shows this where they've got the.different sprayers you drive through and.get in that track and then it actually.sprays the undercarriage of the vehicle.as well as the tires from the side and.underneath that's kind of fancy we don't.typically see that on a highway.construction project so and the bottom.right picture is more pressure washer or.water hose with some guys spraying the.truck tires down before they leave the.job site that works but the message here.is to do what you got to do because you.don't want folks calling in and.complaining about your project and.getting a surprise inspection visit for.may be cute okay concrete waste this is.something that a big deal with a DEQ any.anything that's got concrete in it.pretty much is considered concrete waste.which is a hazardous material when it's.in its slurry form so any of your slur.your surplus concrete your wash water or.grinding water any of the slurry or slug.to left over from saw cutting coring.grooving all of that in the early stages.have that mixture are gonna have a.really high pH so it is a hazardous.material now after the the chemical.reaction between the cement and the.water has finished then you've you're.okay it's not a hazardous material.anymore so it's just those first few.days that we've got to be really careful.with it so after the concrete has.hardened and set you can break it up and.dispose of it you know like any other.waste material you can never put a.concrete waste area within 50 feet of a.water body and you've also got to have.your waste areas designated on drawings.unless the times we're gonna see just a.pit where we can dump the stuff in they.do talk about per meal impermeable bags.and linings for the pits you can have an.above-ground facility below ground.facility lots of options there and.there's lots of expensive stuff.available online but most of the time we.just see a pit dug in the ground we need.to make sure it stays contained dust.control is something else to think about.and this is where we kind of get more.into the wind.type of erosion which is not as common.water is the easiest thing to do just.spray it down get it wet particles stick.together they don't go around in the air.as much so that's the cheapest way there.are some companies that provide.adhesives and different things that's.something that really I don't think it's.justified cost wise but if you're.already using something like that say on.your gravel roads to keep down dust you.might be able to switch over and use a.little bit of that during construction.as well so I feel like it is time for a.little bit of a break so I'm gonna start.the timer for another ten minute break.and then we'll wrap up this last section.in just a few minutes if you have any.questions feel free to enter stuff in.the chat pod I'd be happy to answer.those so I'm gonna pop that timer up.there and you should see it now so I'll.see you guys in about 10 minutes all.right welcome back I am going to launch.a poll so based on what we have talked.about and in that last segment about.some of the.actual BMPs and how we're going to.manage and mitigate some of the issues.we talked about a lot of different.things but as far as being able to.design or being able to think through.hey we're having a problem in this.location I can't figure out how to how.to fix it what are my best options I.want you to think about all of those.different BMPs.as whether they're intended to prevent.erosion or whether they're intended to.control sediment so I've got a poll.question up here for you to answer.so silt fence is one of the most common.items so if you would answer that one it.looks like we've got a few more who.still need to vote but so far good.results I'll leave that open for just.another minute all right I'm going to go.ahead and close that one and we'll talk.about it.silt fence is something that is going to.catch sediment so as water flows toward.that fence and it has sediment in it the.fence itself is intended to catch the.sediment so that one is going to be a.controlling sediment sort of thing.rather than preventing erosion because.it's going to take up the slack for what.has already gone wrong the next one that.I'm going to put up here is the same.question but for a slope drain what do.you think about a slope drain is that.one intended to prevent erosion or to.control sediment.all right good I'm gonna go ahead and.close that one that one is going to be.primarily geared toward preventing.erosion because that's where you would.take you would take water that's at the.top of the slope and we're gonna get it.from the top of the slope down to the.bottom of the slope without allowing the.water to actually come in contact with.that disturbed soil which is gonna help.us prevent erosion all right very good.so we will move on now I'm going to talk.a little bit about permanent controls.these are the same types of BMPs but.we're really gonna put these in the.context of long term so it's not just.something that we're doing during.construction but we're gonna put these.in place during construction so that.they will be there forever and ever and.help mitigate erosion you know in our.permanent controls none of these really.should be they shouldn't be catching any.sediment because once I've done the.project and I've stabilized the site.there should be no more sediment so the.only thing I have to worry about at this.point is preventing any erosion from.happening and then long-term of course.there is no sediment to worry about.so these permanent controls are going to.be things like vegetative cover slope.design riprap.channel linings culverts under drains so.let's look at a few of these vegetative.cover is probably the most common.because it's pretty cheap and it looks.nice people like it it works well it's.very natural and it's probably real.close to what was there before you ever.came in and started the construction.project in the first place so it's very.effective this is actually something.that we could use during construction if.we have areas that need to be stabilized.for say we're going to winterize the.project and come back in the spring and.continue working we cannot leave large.areas exposed in fact we're limited to a.14-day period so I would have to do some.type of stabilization I can do temporary.seating in that case the.for long term what we're trying to do is.completely stabilize the site so the.regulations state that we need to.achieve a density of at least 80% and.you want to consider the native.vegetation so you're trying to get at.80% as good that's what the vegetation.look like before now that's hard to.measure so my recommendation is that you.take a picture before the project starts.and then once you've placed this.permanent seating then you're gonna look.and see when it takes root does it look.pretty much as thick it's what was there.before so if it was an area that would.only sparsely support vegetation we can.only expect 80 percent as good of that.as that after construction but if I had.nice good thick vegetation before I.should expect nice thick vegetation.after seeding and mulching can be placed.in a number of ways most commonly we.probably will see like hydroseeding or.that is sprayed out and may have some.adhesives the picture in the bottom.right corner of this slide shows a tack.afire or a type of adhesive that helps.take that seed and stick it to the.ground keep it in place the longer it.stays in place the better it's going to.function the more likely to take root so.when you think about some of the slopes.that we're trying to vegetate you know.it's downhill if we get a big rainfall.the rain is going to wash the seeds away.it's going to end up at the bottom of.the slope that's not where we want it so.the more we can put it in place stick it.there and then cover it up and keep it.protected the better off we will be so.we're also oftentimes the mulch placed.on top of that seed and then even.sometimes we'll see some netting place.to hold the mulch in place the malt.holds the scene so it's just a series of.steps to make sure that we're going to.get that growth like we want another.thing to think about is the topsoil.sometimes during a project we go in and.scrape away the natural topsoil would.bring in a more a better material for.construction purposes but that doesn't.grow grafts as well so a DEQ recommends.that you stockpile that topsoil it was.straight.in case you need it later to get grass.to grow all right another way that we.can try to get grass to grow is erosion.control matting there are lots of.different rolled erosion type control.products and so blankets and mats this.picture these two pictures both are very.common types that we see on projects the.green type is supposed to be.biodegradable kind of disappears when.vegetation grows through it I do know.that mowers will still pick this up and.kind of rip it loose so that can be an.issue and the picture on the right is.just a different different type.different brand and so one of the things.I wanted to point out though here was.that if you look at where a water.droplet would go say it follows at the.top of the slope it's gonna pick up.velocity as it moves down the slope and.you see that the length of the matting.is really not quite long enough the.greatest potential for erosion is at the.bottom of the slope so make sure when.you install the matting that it does.extend this far down the slope as.possible I've got some other pictures of.some different brands and different.types the picture on the left shows some.different colored dots that to.manufacturers recommended instructions.for applying these blankets in different.situations so depending on how long the.slope is or how steep the slope is they.may have different staple patterns or.tack patterns to get it tacked into the.slope the top right picture is just a.different type of mesh that again is to.help hold all that vegetation in place.and give it a chance to root the bottom.right picture I just put on there.because I thought it was really cool.this is a vertical slope so they're.placing the matting on a vertical slope.and they have to rappel to get it on.there so I don't know if that ended up.working or not but I thought it was a.cool picture so I'm just thinking.outside the box for sure and then.sometimes we just can't get grass to.grow but we need to stabilize a slope.and so riprap is a great alternative.it's not as pretty sometimes.residents don't care for it as much but.it can help not only with creating the.erosion stability but it can help with.stability of the structure of the slope.as well so that's a good technique to.keep in mind another thing that we could.use are called gabions this is basically.just a wire basket of rocks we stack.those up they're very heavy they.increase the stability of the slope that.can work out very well and it looks.natural I think that's one of the.advantages as well in other cases we.might want to use something like grouted.riprap and this is an application.specifically in this picture we've got.two pipes that have a lot of.concentrated flow coming out and it.heads toward a drainage channel and so.what was happening was after a heavy.rain even with the the big riprap those.big rocks it was still pushing that all.downhill pushing it into that drainage.channel and we were seeing a lot of.erosion so with that much force you're.gonna have to do something a little bit.more substantial than just placing rock.so the grounded riprap it's like a.slurry concrete mix that goes over the.rock but it kind of settles down in and.glues the rock together but it still.leaves the texture of the rock and so.that creates enough texture that it.changes the energy changes the flow.pattern it's not just a straight shot.we're kind of mixing up where the water.goes kind of takes away some of its.energy another technique is Banting and.this is something that's done in a lot.of locations you see a lot in Missouri.as well but they take instead of running.a channel straight down the slope and.trying to provide a channel that's.actually protected the benching kind of.goes in it's kind of that terracing.effect a little bit like what we did.with the diversion ditch the middle of a.slope and in this case we have a line.ditch or diversion ditch it divides the.length of the slope but also takes the.water that's coming from the top of the.slope and.front direction and keeps it from having.such an impact on the water that's in.the ditch itself in here I've got an.example of where and why we might want.to use some riprap even though it's not.the prettiest thing but I mentioned the.structural stability of the slope soils.will tend to fail on a slope in kind of.a circular pattern so if you see that.bowl shape that's where the failure.plane is it's not a straight line it's.more of a curve and so if you're out and.you see a slope and if you look in this.picture on the top left where the yellow.oval is showing you can see that the.dirt looks like it's torn that whole.slope looks like it's settled a little.bit and there's just a tear in the earth.that is the settling that happens at the.top of that failure area at the bottom.of the slope you can't really see it in.the picture but there'll be a lump or a.kind of a punched out section that's how.everything shifts along that circular.plane you'll have a bump at the bottom.that indicates that it's not just an.erosion issue we've got a whole.structural stability problem so that's a.case where we would definitely want to.come in and remove the material in that.slope and replace it with riprap so that.I get structural stability that's also.going to help with erosion prevention so.it's kind of getting double duty out of.that channel linings are another.technique that we can use for long-term.prevention of erosion this is something.that we're gonna use maybe when scour is.a problem because when we put water in a.ditch that is a concentrated flow and.you see ditch paving in a lot of cases.because we do have large amounts of flow.in that constructed ditch so to keep the.flow line of the ditch from eroding we.need to line it with something so ditch.paving it's great except that it does.allow the water to really move fast so.we have to have some dissipators and.then also maybe a rock shoot at the end.of our ditch paving to slow the water.down before it gets back on natural.ground another thing that you see in.this picture is.the the erosion control matting and.typically you're going to install the.matting in strips up and down the slope.in this case we're just using a little.bit of it toward the bottom of the slope.because that's where most of our erosion.will happen and since it's a fairly.narrow section they have chosen to.install it sideways so in this case.that's that's okay but keep an eye on it.make sure that it is tacked in very well.because it tends to fail a little more.quickly if its installed sideways.another way to line the channel is just.with rock this pictures from the city of.Batesville and they use a lot of rock.linings so that prevents the scour that.can happen in the flow line of the ditch.the only issue with that is when you're.mowing the yard and so you may have a.little few little rocks that fly out of.there.so with the exception of that problem.this is a super technique for making.sure that we're not having erosion and.those ditch lines another place that we.want to make sure we don't have erosion.is at the at the bridge ends when we.build a bridge we've got usually a water.body runs under the bridge so we're in.very close proximity to the very thing.that we're trying to protect that water.body is there we have the potential for.erosion during construction we kind of.make a mess there and so during.construction you'll see usually riprap.under the bridge then you'll see a row.of silt fence then you'll see another.segment of the riprap.that's great that stuff is also going to.stay there long term with the exception.of the silt fence so as early as.possible in the construction process go.ahead and get that riprap in and then.when the project is finished basically.you just have to take out the silt fence.but you're riprap then is going to stay.even after construction some other.permanent controls are going to be.culverts or box culverts and this is.something that you know typically is.designed as a feature of the.construction project itself but it is to.manage water so that's something that is.an actual erosion prevention technique.in other locations we may have pipes.make sure that you.reinforce these all the way around we.talk about scour at the outlet of the.pipe but that's really we're talking.about the flow line so keep in mind that.usually in a v-shaped pattern we can see.some erosion coming down toward the flow.line from the sides of the pipe and if.we can reinforce that entire thing with.some rock that's going to be very.beneficial for us and that's a good.practice to kind of make as your general.policy is to always line the entire.perimeter of that outlet pipe this is an.example of a large box and we did not.wrap the entire outlet with the RIP rap.it kind of stopped where the end of the.wing wall was and as a result when high.water times came the water kind of.eddie'd around the edge as it came.around that wing wall and it really.eroded a big section of the soil there.this next picture is probably a common.thing that we see same kind of thing.that happens but this is long after.construction we tend to see these.problems continue so when our boxes get.full of sediment that's a problem so we.do have to maintain that and one concept.that I do want to point out here is that.if you have a flow line that matches.your stream gradient everything kind of.rocks along and moves at its normal pace.so if the water is carrying sediment.even if it's just natural erosion that.sediments moving in the water if we can.keep that moving at the same pace.through a box it will continue to move.but most of the time we put in a box.which has a flat bottom that flat bottom.then slows the water down and that's.exactly when the sediment falls out of.suspension so if we slow the water down.at the box we're much more likely to.have the box fill up with sediment then.it gets clogged that doesn't function.then we have scour at the outlet and all.kinds of other problems so that's.something that you know you don't always.have the control over that to be able to.fix it when you're in a maintenance type.situation but if you have the.opportunity to influence that at all.during construction just remember that.that that can be an issue.another newer technique is to look at.what's called bottomless culverts this.is really where you use a larger covert.and you leave the bottom in a natural.condition so this allows for fish.passage natural flow of the water it's.usually if you work with mother nature.you're more likely to be able to be.successful if you try to go against.mother nature you almost never win so.this is a way that they're looking at to.kind of manage those things a little bit.more naturally and then sometimes we.have to stabilize a stream bank in the.picture on the left if you notice.there's some white rock that's been.placed to stabilize the outer edge of.that stream Bank again if the stream.Bank is close to a roadway structure you.may need to go in and stable that to.keep erosion from happening over time to.keep that in from encroaching on the.roadway area the picture on the right.what I wanted to point out was this.large slope that leads down to the.drainage channel there's small rock at.the top and we've got larger rock at the.bottom and that's a technique that can.save you a little bit of money by only.placing the different types of rocks but.those larger rocks are going to be more.effective at the bottom of the slope.where the energy is greater it's going.to be able to withstand a little bit.more of that energy from the water we.don't really have to worry about that as.much at the top so we might be able to.use a less expensive aggregate in that.portion right and then real quickly I.just want to go over some inspection.information because this is something.that once we built the project and.during the project we're having to.inspect a DEQ requires one of two.options for inspection we can either.inspect a job site every seven days or.we can go once every two weeks but we.also have to inspect again after a major.rainfall event and I need to make one.change here this is after a half inch.rainfall event that latest update has.actually changed that to a quarter inch.rainfall event so we do our inspection.we look at all the BMPs we figure out.what.needs to be fixed and we give that to.whoever's doing the work that may be a.contractor we may be making those.repairs in-house but we have three.business days from the time of discovery.to make those fixes then we've got to.update all of our documents that has to.be done within seven days so that's.where we go back to the swip and we look.at what did the plans say we were going.to do what did we actually do what did.we have to repair so we come up it's.kind of a living document where we have.a continual set of as-built where we're.documenting everything as the project.goes so we're going to document that as.well as those major work areas and work.activities so we're just keeping a very.good record of what all is happening a.DEQ does want us to keep some.information on rainfall data they want.to know about discharge where is water.leaving your job site where is that.located and then look at it do you see.any evidence that sediment is also.leaving the job site in those locations.they want to know about your major.construction activities to see it gives.them an idea of they had the project.plan so how is your progress going along.throughout the process and then also.with each inspection you're going to.inspect all the BMPs are they working do.they need to be maintained did they blow.out where they installed properly.the hardest part probably though is that.not only do you look at what's there you.also need to look at what's not there so.where are places that maybe you need.something else but it's not there okay.and that's hard to see it's easy to go.see it and say okay this is working or.it's not working but to see a location.that needs something else sometimes can.be more difficult so for an inspection.report you're going to fill out an.inspection form and unless you are d-o-t.person you're going to use what's on the.a DEQ website this is their standard.inspection.form so that is available on the website.just download that I also have it.included as an attachment for the class.so that's a way that we keep up and make.sure that we're doing a good job of.being effective at managing our erosion.and our sediment control and then.sometimes we get a surprise inspection.from a DEQ and usually this is more.often than not going to be the result of.someone calling and complaining so that.could be as simple as muddy tires.tracking out onto the public roadway it.could be a messy looking jobsite and.somebody just assumes that you're not.doing what you're supposed to do.but when a DEQ comes they should come.during normal business hours they're.going to contact the name that is on.that site notice and if they show up and.there is no site notice you will get in.trouble for that that's one of the.easiest things to find so when you're.doing your regular inspection go look.and make sure that that site notice is.posted and then it is readable that.water or sun hasn't bleached it out make.sure that your swip is on site all the.parts of it it has to be on site at all.times.some common mistakes are forgetting to.do your inspections on time or kind of.putting that off thinking well nothing.really has changed you still have to.keep up with that inspection schedule.whichever one you pick either the.seven-day or the 14-day plan keep up.with that one of the biggest infractions.would be the failure to protect water.bodies and that's our whole point of.doing all this stuff is to make sure we.take care of our waterways and then any.improperly installed missing BMPs poor.housekeeping that kind of stuff so you.can see the difference in these two.projects if I were going to be.responsible for one I would definitely.choose the one on the right because it.looks like I've got my stuff together.then the last step is that we send in.the notice of termination and this tell.us a DEQ that construction is finished.final stabilization is complete we're.not going to make any more messes we're.not going to disturb any more soil.all the temporary stuff has been removed.and everything should be stable to last.forever and ever and then I have to keep.my records all the records from the.project for at least three years and.that's going to include a final.inspection and photos that need to be.retained with those records so a de tus.notice of termination looks a whole lot.like the Notice of Intent but that's.available in your attachments as well as.on their website and so once that is.submitted and they sign off on it then.your project is good to go so in.conclusion I would just say that our.ultimate goal remembers to protect the.water bodies so sometimes we have to get.a little creative in a construction.setting or how are we going to prevent.the erosion and how are we going to.control the sediment so with that there.is a question it says so the inspections.are performed by the contractor and the.highway department now as far as.inspections the owner of the project.whatever agency select for an art.project they would be the owner they.will do the inspections the contractor.is the one probably doing the work so.that means whoever does the inspection.and has to give the inspection report to.that contractor and they would be.responsible for making those corrections.so that that is a great point it kind of.depends on how your project contract is.set up and that needs to be decided on.the front end who is responsible for.your erosion control all right other.questions comments.you.all right well then is all I have thank.you so much for attending my contact.information which you probably have from.the many emails that came but feel free.to email me if you think of questions.later if there's something you wanted to.have more information about give me a.call there will be an evaluation form.when you close out of the webinar it.should pop up for you and again thank.you so much I appreciate you attending.have a great day.

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What is the total number of federal applications, documents, or forms from all the departments of government that US citizens are required by law to fill out?

I believe that the answer is 1. The 1040EZ for filing your taxes with the Internal Revenue Service. If you want nothing else from the Federal Government, that's it.

How do I fill out the N-600 certificate of citizenship application if you already received a US passport from the state department and returned your Greencard as the questions seem to assume one is still on immigrant status?

In order to file N-600 to apply for a Certificate of Citizenship, you must already be a US citizen beforehand. (The same is true to apply for a US passport — you must already be a US citizen beforehand.) Whether you applied for a passport already is irrelevant; it is normal for a US citizen to apply for a US passport; applying for a passport never affects your immigration status, as you must already have been a US citizen before you applied for a passport. The form’s questions are indeed worded poorly. Just interpret the question to be asking about your status before you became a citizen, because otherwise the question would make no sense, as an applicant of N-600 must already be a US citizen at the time of filing the application. (By the way, why are you wasting more than a thousand dollars to apply for a Certificate of Citizenship anyway? It basically doesn’t serve any proof of citizenship purposes that a US passport doesn’t already serve as.)

How are the dates of GATE exam assigned to the applicants? Is it completely random or the applicants filling the application form first are assigned to the earlier dates?

Question is little bit wrong because it is not the date but time slots which are different for candidates belonging to same category of gate paper. Gate paper of same category conducted on a single day and date but at different time slots There are two time slots , 9am to 12 for set 1 and 2pm to 5pm for set 2 …….hope it will help you ………

The company I work for is taking taxes out of my paycheck but has not asked me to complete any paperwork or fill out any forms since day one. How are they paying taxes without my SSN?

If no paperwork has been filed since Day 1 and from what you said (How are they paying taxes without my SSN?), they don’t have your SSN, are you sure they consider you an employee and not an independent contractor? I’ve known many employers to do this to get out of paying unemployment insurance, health insurance and their share of FICA. They can still be required to withhold taxes if they don’t have a tax ID for you, in the same way that a company will withhold taxes and remit them when they pay dividends on a shares owned by a non-citizen.

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