Minutes of October 4, 2001

[Approved 10/18/01]

Present: Bob Boisselle, Peter Mortimer Nancy Naslas, Bruce Rider, David Valade

Voted: To accept the minutes of September 6, 2001.

Correspondence:

Ell Pond Improvement Council meeting dated September 6. Fall cleanup will be on Sat., Nov. 3 from 9 a.m. - 12 noon; rain date will be Sunday, November 4.

Crystal Street - Ray Blanchard, Superintendent of Parks, stated that he has been working to complete the Crystal St. Park in accordance with the original site diagram. He has ordered additional benches, is obtaining a large granite boulder to support the plaque, is repairing the footpath and is installing plantings along the shoreline. Other Business: Ray states that high school students are repairing the footbridge. He also offered to obtain a price quote on installing a wooden guardrail at the knoll. He also stated that he was exploring the option of moving the carnival to the High School parking lot.

The committee discussed the ongoing problem with the Canada Geese and the benefits of pursuing a city ordinance against feeding them. Dave Dickerson suggested the Parks Dept. limit the mowing of the buffer zone adjacent to the pond. This action should help control the geese problem. The committee did not receive the Historic Landscape preservation Grant (earmarked for the knoll) that it applied for.

Upcoming Activities and Volunteer Needs: Volunteers are needed to work on a number of pond projects. If you have free time available, please contact Dave at 781-662-7327.

Pictures were passed around of the Roosevelt School, showing the holding areas and the retention basin area.

Bow Street
Pictures of Bow St., the area where we had neighborhood problems where the water is accumulating, but the owner went in and cut the trees. The Order of Conditions doesn't say anything about doing anything with the trees, even though they took down probably an 80 year old weeping willow, which probably sucked up water like it was nothing. We will see what happens in the rainy season next month and how much water they actually accumulate.

An article was passed around that was sent to Bob concerning a Department of Environmental Quality (DEQ) write-up, regarding a beaver problem and all the interaction that went with that and who had the correct permits, the beavers or the landowners. This was not in Massachusetts.

Voted: to pay an invoice of $10.98 for processing of film

Melrose Public Library - a letter of appreciation was read to the Melrose Conservation Commission from Dennis Kelley, Director, for several important books donated to the library.

Strike Force Intake Log - Bob received a complaint concerning a caller reported seeing work done for the first time at the end of Cutter Street. This is a project that we approved about 7 months ago. Go up Wyoming Ave., take a right onto Whittier, take a first left at Cutter St., it is part of the two houses and a roadway going up in that particular area. Bob stopped by and a DEP File # sign is not up. He is trying to contact them to get that sign up.

The Audubon Society sent the commission for their review a copy of the Towners Pond and Swains Pond recreational area including a blown map and a trail system discussion, and it also talks about the ecology of the recreational area.

Mt. Hood Notice of Intent Presentation
Ray Blanchard, Interim Supt. of Parks: Tonight we will give you a presentation of where we stand so far with the project, overlooking the view to get this project started, to stabilize the upland areas at Mt. Hood, construct the 12th hole, and to restore the two ILSF and the two wetlands. I would like to introduce Colin Duncan from Epsilon Associates and Tom Henaghen from Camp Dresser & McKee. I will turn this presentation over to Colin first, and they can walk you through it. We have some maps to show you.

Colin Duncan, Epsilon Associates: In terms of filing tonight, I brought several copies of the Notice of Intent for the commission. We wanted to put the whole package together and let you adjust that as we go, and then have our hearing opening two weeks from now. I did notify abutters today of an NOI filing with regard to this project pursuant to the enforcement order, so it is a new NOI to address the issues before the commission. This was driven by our meeting last Friday on the site with 3 commissioners. Included in our package is the forms, an extensive narrative that addresses 5 areas, 4 resource areas within the envelope of the fill areas up on two of the sites, 2 ILSF and 2 bordering vegetated wetlands, and a 5th area which is off to the side and is the 3rd pond, which received some sedimentation over the spring when there was heavy rain. That has kind of died off at this point, but certainly it is a concern, which we will be addressing. Also, in this filing are several cut-offs of the 4 specific resource areas that are discussed here, and within each one of those are several areas specific that had certain depths of fill and certain types of treatment to restore the ILSF themselves, the basin, how much sediment is in them and what is going to be done about it. Those are all described in detail in more of a construction sequence and format in the narrative.

Bob: Is there any section concerning the analysis of the fill?

Mr. Duncan: That is being done as we speak. We can provide that at the next meeting.

Nancy: Did you go out yesterday?

Ray Blanchard: The people that are now doing the analysis of the fill itself is Simons Environmental, a different consultant firm altogether. They were out yesterday. They did their boring within 24 inch yesterday. We will have that information for you on the October 18.

Mr. Duncan: Tom Henaghen is from CDM and he did a lot of the preparation and the grading plans. As we worked through this project, this has been addressed as a big picture, in other words we weren't just focusing on restoring the wetland here or in separate areas.

Bob: Before you start, where is the tower?

Mr. Duncan: It is there on the ground. This is the road extending up from the golf course. This is 3rd pond. This is the road from the parking area to the golf course. This is the 12th fairway, the new tees are up here. There are 3 parts to this fill area. There is an upper area we call the ball field pad with the steep side slopes around these two islands. This is an undisturbed area above this island. This is kind of the middle ground or middle terrace between the ball pad and the 12th fairway. This is again the tees with slopes going down to the lower part of the fairway, and then the green which is existing in play right now. The two wetland areas are here, wetland 2 and wetland 3 as flagged previously.

Nancy: Previously? As in when?

Mr. Duncan: They were flagged I believe last year.

Nancy: This doesn't reflect their size now?

Mr. Duncan: In this particular one, the water level hasn't changed , so there is a different water level there now. Jurisdictionally, these were filed, but they were recorded with the previous files by CDM lab. Tom Henaghen can answer questions regarding the grading, the proposed stabilization and final grading plan and stabilization for the period as a whole and the drainage associated with that grading and stabilization plan. We can take it in any direction, but just to go through some of the resource areas and what we are planning to do with each one of them. The ILSF are defined as what would determine to be the water elevations when this survey was made a couple of months ago, and the actual boundaries of the ILSF are shown on the blowups provided in the NOI. There has been quite a bit of sedimentation into these basins. Around the parameter of the basins before it hits the water, there is sort of a terrace area and that has up to 2 - 3 ft. of sediment over natural soils. There are a couple of trees on these slopes that are territories that were either significantly stressed or actually have died because of the fill over there in the roots and the trunk, as well as a number of smaller cluster of sweet pepper bush that has died, particularly in the western part of the terrace. Then there is this swale which has always existed, sort of provided an overflow swale if you will, and that area will be restored to its previously existing grade. As the slope is sure enough stabilized, there will be a 2 to 1 slope in this area here which is called modified rock fill on these corners because of the need to stabilize that slope and provide a means of getting water off the slope without continuing the sedimentation of the erosion within these two high spots.

David: What is a modified rock fill?

Mr. Henaghen: Basically, it is a combination of a gravel layer, I think it is 12 inches in this case. The modified rock layer is basically, 8 inch down to four-inch stones, this layer will stabilize the slope and acts as energy dissipation so the water isn't going to go through the slopes. The main reason, as Colin pointed out, that it is only on the sides. If you look at the way that flat area at the top is graded, the runoff from that area is concentrated to the two corners. That is why we are not going to do the whole slope.

Mr. Duncan: Within the two basins there is about 2 inches of pine sediment sitting on the bottom. Once the sediment hits the edge of the water, it will dissipate out over and settle. That is a pretty consistent measure of what is there on bottom of both of these. That sediment would be removed and any over-excavation that needs to be done to get leaf litter and things that accumulate in those basins. We would restore that with the leaf compost materials, which actually happened for the city right over here in the compost. It is a good opportunity to use that for stabilization while it would be an organic type mix. We can use that for mixing the soils brought in. This would be done by a couple of different means. Mechanically, there would be draining. This is at least 12 inches of water in the basin now. We would have to drain those down, drain one to the other, and then suddenly one would go to what would be a temporary sedimentation basin, and ultimately a permanent retention basin within the fill area. They would be drained one from the other, the sediment would be removed by either small equipment or using a vac truck which is like a vacuum system that often a hazardous waste uses to suck out the sediments from sensitive area wetlands when they want to get the contaminated sediments out of the shallow wetlands. They use that and it is a very good method, minimal impact, and you don't have to scrape everything off. You can do it very distinctly in an area. We will try to use that, but we ultimately will probably have a need for small machinery to get in and really get that area cleaned out. As the area is re-stabilized, we will be planting vegetation, which I specified trees and shrubs, as well as a vegetated mix to stabilize all that. The road will be narrowed away from the ILSF so there will be more of a natural slop. That will all be stabilized, planted with vegetation and then as we go around here, the uncovered area again is an area that we are trying the existing grades and not touch it, except for cleaning it out. So there will be a narrow shelf of wetland and the transitional tree for vegetation around the edge. We will be cleaning out the basin. There are a lot of trees in there and shrubs. We will preserve all of the trees that are living There may be some dead wood that has fallen off that we will clean out as we go to get all the sediment out. Again, all these slopes will be stabilized with vegetation around the edges. The slopes here on this lower part which is kind of a flyover for the golf toppings, this will be the upper part of the fairway. The slopes will be about 3 to 1 here as you approach this wetland. You will have a little bit sharper drop off to allow a 20 ft. permitted buffer from the tallest slope to the wetland edge. We will remove the silt that is in this corner and in a concentrated area; this really came down the slope. This is about 9-18 inches of sediment accumulated in this corner. It really hasn't gotten out into this wetland. There is very little, it would be a film of sediments in this wetland area that is also the filling. This wall that was installed really helped to prevent the silt from migrating in, and once it gets here it sort of moves in this direction, as opposed to in the wetlands. So we don't really anticipate any silt removal except in this upper corner, and anything that is in there we will remove. But, we just anticipate stabilizing this flat area with vegetation and the water level will be a little bit higher. We believe it is a lot higher now because first of all, this area was filled and is in fair ground. The water has nothing capturing it like vegetation. So we believe that as a basin it is entirely self- contained, there are no other stream outlets except for this long fairway. This fairway outlet swale, which would have allowed the normal flow down from one wetland to the other, was tripped off, didn't fill. This area will have a permanent outlet at elevation 137 ½. That will be a very rate occasion where the water would get high enough in the basin to discharge out. We believe there will be a significant amount of storage, usually a normal pool elevation about 136, which is slightly higher than the wetland you show now. So we will kind of have a net gain of wetland area and over the course of the growing season that will go down, but there will be that for the storage area within the swale, which will have a normal outlet to this drain pipe, keeping up with the storm for drainage aspect. A lot of the drainage coming from the slopes will not only go through a number of basins and several side retention basins, but will also go through this second phase within the fairway, and that is intended to provide a second tier of storm current for sediment removal which is normal once it is grown in sediments coming across the slopes. This wetland here, just because of the tightness of the corner, and our desire to have this retention basin and outlet, about a 600 sq. ft. of wetlands will be permanently disturbed to create a little slope area, and then there will be a little riff raff apron slow dissipater so that the water will not just shoot into a channel and that again will be a controlled outlet. What is going on in this wetland, if you have seen the site, there is quite a bit of sediment that has accumulated within this wetland. It goes to about 230 ft. here in the stream. You can pull out sediment up to an inch or so, and it is more as you go towards the source of it. So what we want to do is clean out the sediment in this channel. At this point there is really nothing discernable in the swale. There may be a film, but not something you can get actually get at. There would be a desire to clean out this channel and to address some of the sediments that have accumulated outside of the channel in the upper part of the wetlands. Again, it is all very well vegetated and we want to try to avoid disturbing any wetlands. Because it is vegetated, when the leaves die it will sort of create its own little layer. It will be like a soil layer that will be stabilized and this is the regular top stone. The plants will come up through it and as we keep looking at the side there is no disturb able impacts of vegetation from that sediment. Again, we want to clean it out. In order to replicate for the 600 sq. ft. loss of wetlands, there will be a wetland replication area adjacent to this other side of the wetland, and that will be planted as you do a normal wetland replication for small fills that would be about twice the size of the area loss.

Nancy: What is in that replication area right now?

Mr. Duncan: It is a kind of a shrub, tree.

Nancy: Is it a big tree?

Mr. Duncan: I don't believe so. I don't think there are any large trees, but we specified that we would want to keep any large trees that would survive. We do want to excavate that down over a ft., so that we can put a ft. of organic material back on there, so that anything that we think can survive that would do well with a large tree. That is sort of a summary of everything we propose.

Bob: Could you explain the red squares in 2, 7 and 8?

Mr. Henaghen: Those areas are delineated to show drainage catch basins in the fairway. They were put in there to avoid having to slope the fairway completely in one direction cross slope. This area is actually a cart path to the golf course and there is a curve on one side and it is just directed all down into this catch basin.

Bob: Are you also catching the stream that is on area 6 ad 7?

Mr. Henaghen: Yes, these are actually referring to how the site was divided up.

David: At the presentation on Monday night, Ray mentioned that everything that is now exposed, his main goal is to loam and seed in those areas.

Bob: I got the impression that area 10 was going to be gravel covered. What ever happened with that final interpretation?

Ray: We are working right now to make it sand, loam and seed and not have it covered with stone. It was of the opinion the other night if we can get it done within the million 5, to have it seeded, that is what we are trying to do, and I will know that probably tomorrow or Monday the latest.

Bob: That brings up the next question on sand, loam and seeding. We are coming to the Columbus weekend here, and this is the month of October and your growing season for grass is going down the tubes. Are you considering using any sort of webbing or carpet type materials for this project?

Mr. Henaghen: Yes, in the event that the schedule gets tight, and if the schedule doesn't allow us to seed in this growing season, we will provide hay and tackifier over the entire place close to the wetlands.

Bob: Are you saying moose hay or --?

Mr. Henaghen: Yes, and then tackifier on top of it to hold it together. Tackifier is essentially like a hair spray which holds the hay together, it turns into almost a blanket. Then after the winter we can apply whatever cover materials you propose right on top of that. Tackifier will be an organic material, so we can apply whatever covers were originally proposed on top of that tackifier

Nancy: Would you spray it with that hydro seeding? You spray that right on top of the dirt?

Mr. Henaghen: That is what we would use when we actually go to seed the place. That does help the seed to germinate faster because you are spraying partially germinated seed

Nancy: So the procedure is that you will come back in two weeks and since there will be a public hearing, you will repeat this entire presentation again for the benefit of the public and there will be more opportunities to comment then, although the public will be allowed to speak tonight.

David: This is not a hearing; it will just be open for public comment.

Nancy: This references a lot of attachments. What is missing tonight that we don't have?

Mr. Duncan: The only thing that isn't in there is this set of 3 plans that we are now leaving with you or will be providing additional copies of it and attaching it to the document.

Bob: Is this considered the restoration plan, so it contains the schedules and coordination with the construction activities?

Mr. Duncan: Schedules, in terms of actual dates/sequence of events?

Bob: Sequence of events of if you have target dates and will occur 30 days after this date.

Mr. Duncan: We have that when it comes to monitoring, like getting out and doing reporting back to the commission. I have a detailed sequence of construction that is looser because we don't really have a set start.

Bob: I am for a start date, 15 days, 30 days, 45 days, etc.

Mr. Duncan: I don't have things in that level of detail, again except for the monitoring plan which once it is done within a month we go out and monitor everything and start reporting back to the commission.

Bob: Does this contain the monitoring program also?

Mr. Duncan: Yes

Dave: How long does the monitoring program last?

Mr. Duncan: In terms of the typical DEP requirements policies, we put in two years of monitoring.

Nancy: So is the re-grading based on CDM's finding regarding the thickness of the peat across the falls?

Mr. Duncan: I believe so, I wasn't too involved with the grading of the fairway south, is that true Ray?

Ray: Yes.

Nancy: That calculates in how much more sediment and what they need to do to compensate for that.

Ra:y: The way it was set up was the slopes were designed so that they would be maintainable. 3 to 1 is the maximum slope that you can maintain, and that is why that whole area was designed 3 to 1 or more.

Nancy: But what is the difference between what I am looking at now on paper and the way that slope is today? Is it going to be shorter?

Ray: Yes, it is going to be knocked down considerably.

Nancy: That is where you have the failures. So the structural problems have been taken into account in design? The reason I am asking is because the previous design was presented to us, but didn't take that into account.

Ray: There are a lot of reshuffling of what is on the slopes, pulling back grades. All the slopes you see out there now are far more greater, even the slope going up to the soccer pad which is the brown area right here, 13. That area is going to be 2 ½ to 1 with a plateau in the middle of it. We are losing a lot of the top area to get that to a reasonable slope, and 2 ½ to 1 is not maintainable, that is just going to be high grass area. It won't be maintained, so anything you see out there today will be lessened considerably.

Bob: Once you clean the ILSF, are you going to protect the upgrading that is going on? What is the procedure during restoration and grading operation? What is the schedule on that?

Mr. Duncan: First as far as the grading goes, we are going to deal with stabilizing the top areas first, so that any areas on the fairway that is stabilized down below, we are going to have some sort of watch out from the top down. The details on the sheet are for hay bales and silt fence, and the wetland areas and ILSF will be protected with hay bales and silt fence, even once the stabilization is complete and all the vegetation has taken route and established.

Bob: There was a question concerning the pipelines that you have, especially over in Section 3A. Will that stay and how?

Mr. Duncan: We are actually laying the pipe on the existing soil , to be over-excavated, and there will be gravel around and be filled with common fill. The peat really tapers off to zero at that point. There is no peat under there that we would be putting the pipes within.

Bob: How big is the pipe?

Mr. Duncan: That is what we are working on is the final evaluation, the size pipe, the inverts throughout corroding of the drainage, but I don't anticipate it will be larger than 15 inches.

Bob: Well, let's put it this way, from your area 1 to area 3, they had a pipeline in there which was 14 - 18 inches, and it floated right to the surface this past spring. No matter, what they did, it just floated right to the top. So depending on where this peat is, I am telling you right now the pipeline I saw from 1 to 3 was floating right on the surface in Lake 12 \, which is what we have called it in the past as it has so much water there.

Ray: We talked about that the other day. If that area where the pipe is going to cross the fairway, if they see any gravel that is down there or see any gravel later underneath there, so they excavate for that, place the pipe in that and cover it over with common fill, and that would adequately hold it down as it would a normal pipe. There is actually a trench detail on that other drawing.

Bob: There is a concern can it be an open trench with concrete, rock, etc. to catch that and just to the pathway with the bridge going across. It is not a precedent, it only occurs in one of the tees already. That was a question that I wanted to find out if that was available and was it considered? Can it be done and is it a problem?

Ray: We used the pipe in here a lot to limit the amount of storm water flows eventually to this wetland here. We can elect to see if we can somehow pipe it to a certain point, use that length of pipe to control the flow, and then release it into an open channel. In the discussions yesterday, we didn't feel that we could control the flow in that pipe significantly with an open water drain. We thought we could handle the flows a lot better through a pipe system into that other retention area so we could control how much water is going there any particular time. With an open drench pit, you can't control the amount of flow that is going across.

Bob: Back to the pipeline again that you are proposing from 1 to 3 along the edge here. How is that pipe going to stay in the ground? But now you are more at peat area if I am correct.

Mr. Duncan: What we can do is engineer the trench section details.

Peter: Regarding the NOI, this states a notification of a list of abutters to whom it was given is attached, and their addresses are attached to this affidavit of service. I don't see the attachments.

Mr. Duncan: That was an oversight. The list didn't get in. I have a list that I can fax to the commission and actually provide that tomorrow.

Bob: You need to submit the cards.

Mr. Duncan: The list of the abutters was taken and confirmed from last year.

Bob: Why don't you make up a full list and bring it in.

Peter: I would like to get a list before the next time.

Mr. Duncan: Okay, I will get it to you tomorrow.

Nancy: On the NOI Form 3, 2 , where it says the areas you left for the buffer zone, it asks for sq. ft. and you left it blank. It sounds like taking into consideration keeping a lot of the water from running across the fairway, does that mean the amount of water wetland 3 receives is going to be reduced?

Mr. Duncan: Right now it looks like in the 2 year storm, the 25 year storm.

Nancy: In some of your narrative you talk about 4 infected areas, and then you list 5.

Bob: There will be a lot of people looking at this and will asking what are we talking about here if you keep changing your numbers.

Mr. Duncan: We can provide an addendum or replace the document.

David: When it comes to 3rd pond last, we did have a considerable amount of contaminated water flowing into 3rd pond, and I think they fixed and reseeded the area, so it should be taken care of. Did you review that into the fix it is okay?

Nancy: They have also fixed the cause.

Ray: We regarded that and then seeded in the interim. It seems to be working right now. We haven't seen any flow into that pond since that time. That slope that is out there now is going to be even less when we do this grading plan, so we are anticipating that even lessening the slope and sand, loaming and seeding it, we are going to stop that penetration all together.

David: Has anyone looked at the pond itself to see if there is a level of silt?

Mr. Duncan: It is just a film. It would be impossible to take that out. The sediment that was preserved in the ponds, the level goes a long way in terms of this very pond that stages suspension for a long time, so it looks like more than it is.

Ray: We are not draining any more water out of that pond. It won't get any lower.

David: It comes straight from the well now? I know at one point the way it was proposed the wall was going to be drilled to put the water into 3rd pond, which is where you get the irrigation level.

Ray: The well actually filled into 1st pond. One week and one-half ago, we were at a situation where we had to actually go to city water because all the ponds were at incredible levels, so rather than drain up dry, we switched the city water for three days and were able to pump the wells to fill up the first one. The first one's elevation is back up where it was before and the 2nd and 3rd are obviously filling up with drain water that we are getting, so there will not be any more drain down there.

Bob: Of course, that pipeline, was needed, correct?

Ray: Absolutely. I can show you the bills. That is why I dread doing it.

Nancy: Any subsequent material that you submit before the hearing for the NOI, how will you get that to us so we get a chance to look at it before our meeting? Everything that is required under the Wetlands Protection Act is what I am talking about, including the design drawings, not just stamped for permit purposes only, which is what happened last time. That didn't work well.

Mr. Duncan: This particular plan goes a long way and that was the intent to use this as the document for construction.

Ray: We will have the actual construction documents for you. I can't tell you exactly when, because it is a crush to get it done. As soon as we get it, we will get it to you.

Nancy: I personally would like just to be notified when there is a copy available for me to look at it before I hear it. I will give you my Email address to let me know it has been left off at our inbox in the Planning office.

Bob: There should be 7 copies of this document.

Bruce: On page top of 8 on your WPA Form 3, your final determination of applicability, is it attached?

Nancy: You will want to check that what you list as attached, is attached to the final submittal.

Collin: That is a standard print. I will be happy to include that.

Nancy: Another thing that is not clear is what is existing conditions? The reference on the bottom of the 11 x 17 "Source to Conceptual Site Plan" dated 9/24/01 in this document is the reference of the conceptual plans from a year ago. That is the source of their topo grading, but things had already changed. So what is the existing, is that a different map than we are going to get?

Ray: Along with this grading plan, we will be providing another full size sheet with the grading plan.

Nancy: I was confused because this says conceptual site plan, and the word conceptual is something I would like to avoid from now on. We have reviewed a lot of plans that were listed as conceptual that either failed completely or never happened.

Mr. Duncan: That is why CDN has changed the wording on that. We have maps what really were existing, but we are showing as existing is what is on the ground today.

David: You may want to be able to reference a note referring to the elevations that the water fills for the ILSF and other areas which were different before any work was done, so you may want to have the maps at pre-fill, current existing, as well as proposed elevations.

Mr. Duncan: We should be sure to provide the existing conditions the day of the survey, the day of the work shown.

Dave: And where you are restoring something to pre-fill, have something at least to reference to show what it was then.

Ray: You are looking for original conditions. I don't have any problem with them, I just don't know when the first survey was ever taken.

Bob: Check with the master plan. I think it has the original survey on it.

David: At least when it comes to the 12th fairway too, we had an original plan that said this is what it is now, and what they were going to fill it to. I know that is all changed what it is going to be filled to, but the wetland delineation was done as part of that and other things, so where you may have trouble with it, the pre-work conditions is on the ILSF, because that work was done there well before it should have been done and the commission was involved and we ceased to desist them.

Bob: We talked about sloping, etc., how are you going to be protecting these slopes, especially near the water areas. Do you have other drawings?

Showing of the drawings

Ted: Are you referring to protection as far as stabilization, or personal?

Bob: Both, if you have it there.

Mr. Henaghen: This shows the modified rock fill area which will be these two areas here, and around the top of this slope there is going to be a 4 ft. chain link fence installed to the personal protection issue to make sure anybody up there doesn't slip and fall down the slopes. As far as full protection and stabilization, the modified rock fill portion of this slope was chosen just for that reason, for slope protection and stabilization. Stabilization in this area here, as I said, the grading in this portion of the study was meant to direct the majority of the flow in these two areas where they were stabilized at the rock fill. At the top of the slope here, there will be two perforated under drains installed in this sandy layer or the gravel layer. That will intercept any of the sub surface water flowing on top of this hill before it gets to the side slope. We equated this site because of the permeability of the fill maybe to a land fill site where any water that infiltrates which would run on the top of this hill saturates the soil, and hopefully on a steep slope like this may end up on a slope failure, causing the slope to slip off. So what we did here, is put these under drains at the top of the slope to drain that water before it got to the slope, allowing the amount of water in the sub surface on these slopes to stay the minimum to maintain their stability.

Bob: Where is that water going now?

Mr. Henaghen: At the very bottom of the slope, the grading indicates a swale that kind of flows down to here.

Bob: You are going ILSF northerly to ILSF southerly?

Mr. Henaghen: This is not draining the ILSF, this swale, it starts back to the high point here and just comes this way.

Bob: Right, it just floods to a point and moves to the ILSF south. That is what it is doing now, right?

Mr. Henaghen: If it brings that elevation over here.

Bob: Is that being accounted for in this area, is there a pipeline going from north to south? How is that water getting from north to south?

Mr. Henaghen: If you can see there is a swale that is actually to the pre-existing original condition grade that we would pull out, that whole swale at that elevation, to allow that overflow.

Bob: Is that swale going to be dirt, grass, rock?

Mr. Henaghen: In this area, when you get a chance to look a little closer, it is a relatively flat slope, no portion of this swale will be vegetated. When you get down to this portion you will see the contours getting tighter together, it gets a little bit steeper, and at that point you can see it's a transition to a riff raff.

Bob: That is a diagram on the other one mapped out?

Mr. Henaghen: This is just some elect detail. They were aimed in construction, but they will probably aid you in understanding how additional areas will be stabilized because we will add another sheet that you think different hatchings in a legend will show what type of cover materials we'll use, say if one portion decides to be finished with 6 in. of sand, 6 in. of loam, and other areas will be finished with 6 in. of sand and 6 in. of riff raff. Those areas will be hatched or coded differently and that will be a legend, so you can look see how what the ultimate final cover materials.

Bob: I want to see it and look on the engineering drawings at what it is going to look like.

Mr. Henaghen: It is showing on here as far as the contour of an attachment.

Bob: But if you drop that board, I want to see the details on that, just like you have on the lower section.

Showing of details, following by details of the catch basins putting in at certain locations.

Mr. Henaghen: Most of the drainage that comes off the car path will either a minimum of 300 ft. over the grassy slopes, and then another portion of it will come down here into this catch basin through this retention basin and into this manhole. This catch basin catches the majority of the water from the car path. What we are supposed to do when it gets up to the basin was to put it into a manhole at a sump this manhole in an attempt to minimize any sediment that was picked up on the car path. The pavement on this side cannot be really equated to a parking lot or a regular roadway as far as hydro covers and other pollutants; it is basically just the golf carts.

Bob: Are you removing the car paths for this construction?

Ray: Yes.

Bob: Where is the asphalt going?

Ray: It will be taken off site.

Bob: What is the lower center drawing?

Mr. Henaghen: This is a combined detail. I just want to return to this for a second. The majority of the runoff on this portion of the site heads over to this wetland here, kind of holding in this pond right here, and then discharging to the wetland. The trouble of discharging to a riff raff slope, riff raff will dissipate the energy of the flow, and then as it comes down, this here widens here to 20 ft. where this will be level across here and the riff raff will dissipate the energy and allow the flow to spread across and out into the wetland, rather than just a single point source discharge. The details are here. These are our standard hay bale, sediment, plus details in place. I will make sure the engineer does trench detail for any of the piping.

Bob: What you may want to do on the piping at the ILSF north and south is to highlight it just like you did with the other piping. It is difficult to see on the map unless you know what you are looking for. It is interesting you are taking all the water in areas 10, 9, and you are moving it to the ILSF north or south, is that where it is going to stay?

Mr. Henaghen: If they truly are ILSF, yes.

Bob: Now there isn't any migration from 9 to the retention area. You are not going to dump the water into that area.

Mr. Henaghen: If you get a good close look at this plan, you can see that the existing high point between this portion of watershed and this area is being maintained to make sure there is no conditional flow from this area into this ILSF.

Bob: So you are taking the water from the quadrant 8 and bringing it together?

Mr. Henaghen: It will flow down into here and then down this way.

Bob: Where is 13, 7, 6, 4, where is all that going now?

Mr. Henaghen: To stabilize this slope, what is out there now because it is very steep and it is a long run of 50 or 60 vertical feet, which is inherently not fatal, as I said it won't be mowed, it will be like a meadow mix seeding, or kind of bench in here. The bench will serve to adjacent 25 vertical ft. to catch the surface water, to dissipate energy and keep it from carrying it all the way down to the bottom of the slope.

Bob: Would you explain the word "bench".

Mr. Henaghen: Bench is a single slope that went from the top down to 50 or 60 verticle feet, so what they are going to do in the final condition, the slope will come down, there will be a bench and it is pitched back into the slope and then it will head down the rest of the way. The grading on the bench meets in the middle so that any water that comes down the slope will come together and join the catch basin in the low point of the bench, and then that water will be brought down to the retention basin here. Area 13 will be potentially this entire slope from the bench.

Bob: Where does it come altogether now?

Mr. Henaghen: You see where this pipe runs right from the middle? That is the center.

Bob: Is there some sort of opening for the water to get in to?

Mr. Henaghen: There will be a catch basin there and it is indicated there. Area 5 will come down here, particularly flow by sheet flow into this wetland here. Area 4 will flow down into this catch basin into this retention basin and into the wetland here. Area 6 will flow by sheet flow into a retention basin right here adjacent to the car path, and area 7 will flow down into this catch basin into this retention basin, again into another catch basin and finally into the wetland over here. 2 goes into a catch basin, and into the retention basin, 3 flows by sheet flow into the retention basin, 4 will come down into the catch basin and into the retention basin.

Bob: Are we collecting a lot of water now and shipping that to that particular area? You seem to be collecting a lot of piping going to one little area.

Mr. Henaghen: Between the car paths, it is very choppy, and if you look at the existing conditions that the drainage calculations will provide in the different areas, the drainage divides an area there is a little bit more going over here now, but that is part of the reason for the additional pipes, the additional retention basins to stall some of that water.

Bob: Stalling and also shipping water to that particular area. Are we shipping more water than previously, would you know that?

Mr. Henaghen: The actual volume I am not sure. I was looking at more in terms of peat flows, trying to limit those. You may want to look at the volume of water where we are shipping this because if we are shipping a larger amount of gallons than what was originally, I am worried what is going to happen downstream at this point here. Is the land capable of absorbing all of this water or is this going to shed it into the next tee or into other properties.

David: Just to clarify, you want original, not existing, to compare the pre-fill watershed overall vs. what is proposed.

Mr. Henaghen: That was one thing that wasn't much of a concern, because we knew in the pre-filled conditions, these wetlands were hydraulically connected, so that is why actually some of the water here was going to get down here, so basically what we did was ran it this way rather than running it through the wetlands but we can look and make sure.

Bob: By running it that way you are absorbing more water on the area. This way now we are shedding a lot of the water faster and moving that material or gallons of water up quicker.

Ray: We are not moving it faster, Tom, right, because we are allowing the water to go out at a restricted rate rather than as is now or as it was previously where all that water was just hopeless or just sheet flowing. We are controlling that water by the retention pond and by the piping and we are dictating the volume of water.

Bob: It still bothers me to the point that in the past the retention pond was area and it was holding it for a while, then it would just seep its way over and be absorbed in by the peat in the fairway, and the remaining would just leave into areas 2, 3 and onward into that area. Now we are just collecting everything and then shoving everything away.

Ray: Is this analysis that is done the one out there right now?

Nancy: The previous analysis has already been done. We have been shown plans that have broken up the area into lots of different water sheds and have calculated the soil erosion's active previous host fill, so a lot of that work is already done. I think that there might be people at the hearing that would like to know that at point x, the ultimate downstream point, is going to get the same amount of water or plus or minus.

Mr. Henaghen: During the fill process the hydraulic connection between the two was essentially broken and from the discussions with Colin, he had felt that the additional water that had kind of stuck here has hurt the wetlands.

Bob: It has created quite a wildlife sanctuary.

Mr. Duncan: And there will be a permanent pool going forward.

Nancy: What is going to happen to the haul road.

Ted: It is being re-graded and it will flow down here as it is now.

Nancy: I thought it was going to go away because in an effect, the dam stops in the ILSF in the middle of your plan.

Bob: I believe what Ray was saying is that the road is going to be pulled back, the roadway is basically on the top.

Ray: It will be narrowed to 12 ft. It will not longer go to the ball field.

Nancy: Didn't the submittal regarding the ILSF or the OOC say that once the fill is brought in, that haul road is going to get taken out so the ILSF would not longer be dammed up?

Bob: The haul road is being pushed back to the property line with the quarry.

Dave: And it is being restored to the original.

Nancy: Because the way the ILSF is now is much bigger than it ever was pre-project. So that ILSF will be able to drain the way it used to?

Mr. Henaghen: Yes

Bob: What types of analysis is being done?

Mr. Henaghen: The standard hazardous waste.

Bob: I am not sure where you are getting the money for this. There is a widespread analysis that can be done.

Voted: to open the meeting for public comment.

Richard Magown: 206-208 Penny Road, abutter to the 14th fairway: I would like to know how much water they anticipate coming down from water 4. You are piping all the water down to that corner. Where is that water going to go?

Mr. Hanaghen: The water is going to go into this wetland. The peat flow in a storm, the highest rate that is going in there, today what is going in there, and that is based on what we proposed, we have the same analysis under the conditions shown here, and we are showing that there will be no increase.

Mr. Magown: Say if you had 4 ft. of water from that green down to there, what would happen? The 12th hole was a pond. It wouldn't carry it. You couldn't do anything. In this past June, the 12th lake hole was a lake. It was 4 ft. of water and where that washed wetland is there is a brook that runs down to the 14th hole. On the 14th hole there was 6 in. of water, the brook was all blocked up and it flooded out the sewer pumping station. I went up to see Mr. Amirault and I said "what are you going do?" He said "we are going to let it drain it out". I said "well, you flooded out the sewer pumping station, you better do something", so a half an hour later they went by with a pick-up truck with a little wooden pump that wouldn't pump out a cellar. A week later the water drained off the 14th hole and that pump was running and running, and the brook runs down along the 14th, underneath the Motor Crest Auto where there is a big pipe, and it goes underneath Route 99. Every time there is a heavy rain now, right in front of where that pipe comes out, 99 floods. If you don't believe me, every time there is a heavy rain go down and check. It is coming up because every time you have a heavy rain the rain fills that holding pond, the 4th, it goes down the brook, underneath the 14th fairway into a catch basin that is on my land, but that catch basin also drains the water from way up Penny Road and by the sewer pumping station and when that brook blocks up, it pushes the water back to the pumping station and they have a catch basin there, and that fills up. So when that fills up, it goes into the sewer pumping station. Now we had a heavy rain and in three weeks there was another rain storm, and there was 2 inches of water in the 14th hole. 99 was completely flooded. At Motor Crest Auto it was almost right up into their cars. What are you going do?

Mr. Henaghen: As I said, this analysis is based on what is out there today. If there is a problem with what is out there today, the commission has also suggested we look at what the conditions were before the fill was put in.

David: This is specifically what Mr. Boisselle, the Chair, asked and said. We compare the original condition, the water flow, into the stream that you said that goes from 12 down to 14 and to the flow from proposed plan and find out if there is going to be an increase in volume, and if there is we are going to have to figure out what that means and how to decrease it. We go back to before any fill was brought in. If there was a problem before any fill was put in, what we are supposed to do is to make sure it is same thing afterwards, we are not trying to correct, we are just trying to make sure it doesn't get worse than any of these pre-filled conditions had at that point and time.

Mr. Magown: Every bit of the water that you are talking about now from that whole end of the thing is piped down to that wetland. That last wetlands is what gives me the problem. That is what I am worrying about.

Bob: That is the question we are asking these gentleman next time to come back and show us if there is a bigger difference than what there was there before, and if there is, we are going to have to look at it and holding that water longer.

Mr. Magown: What I am trying to get across is, wouldn't this be nice if they looked at it before they did this, and if they have to clean out the brook in front of the house and do something, do it while they are doing this, not wait until they get flooded out and then decide to have to do something. The brook and the 14th hole is part of the drainage problem, that is the end drainage of all that water down the 14th in front of my house, so wouldn't that be a consideration?

Bob: That is what we will be deciding in two weeks at the hearing. We brought it up at the meeting to have them look at it, and that is what we are going to be looking at. If it is a higher volume that is going out of the brook, then we are going to be holding that water longer at this point.

Mr. Magown: As dry as it has been, there is still water coming down that brook now.

Terry Waugh - 357 Porter St.: I have two questions. My first question, is this a final plan? I didn't think you folks were supposed to fill wetlands. I thought you were supposed to leave them natural. I didn't think anything was supposed to be coming into them.

Nancy: Do you mean water?

Terry: Yes

Nancy: They are just redirecting the water that would be going there in ways that will not cause erosion. Right now or before anything that was brought in, there were pipes going in certain areas there anyway. Some water was diverted so it doesn't run across the golf course for example. Water is still being diverted, but now it is being diverted in different ways, but we are asking them to show us that if one inch of rain falls, that water is ultimately going to end up in the same place that it would have ended up before anything was done.

David: You might remember the wetland next to the 12th green, when they put in a barrier when they were all problems, we were still getting silt there and it was because there was a pipe no one was aware of it going into it, at which point they pulled a backhoe in, broke the pipe, so there was a pipe before.

Terry Waugh: What a shame they have to do all this restoration and what it will cost, and this could have all been avoided. At least two times, there was a cease and desist for the work going on up in that area, and I think that no one is accountable for this project and I think the rules have been blatantly ignored, the conservation has been ignored, and I think that CDM and David White should be held responsible for cost of this, and not the taxpayers in the City of Melrose.

Priscilla Hook 10 Elmcrest Circle: When you work on the angle of the slopes, will you just be just shoving this all around or do you remove it?

Ray: All of the cutting and filling is going to be done on site. No filling will be leaving on site.

Nancy: Are you going to knock the top off that area 8? Is it overall gong to be a little shorter?

Ray: It is going to be pulled back and the plateau is going to go through there too. They can pull back graphically actually. It is 3 to 1 so as you know right now, it is severe.

Voted: To close public comment.

Bruce: To clarify one thing that happened at the meeting the other night. I heard you mention you glacial fill. Is that what you are bringing in?

Ray: That is what is there now. We won't be bringing in any more fill, just sand, loam and seed. We are just going to shift around what is there, then cover it and stabilize it.

Nancy: I hope you are able to put grass on top of that.

Ray: Right, I think we are going to, but we are asking our engineers for some changes where we can have the cost savings to do that.

Bob: Any questions for Epsilom, CDM or the Parks Department?

Mr. Duncan: We will have seven copies, and we will notify you when the material is ready and deliver it to the Planning Office.

Voted: To adjourn at 9:05 p.m.

Respectfully submitted,

Nancy Pritchard
Secretary