ML19329E646
| ML19329E646 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 11/05/1976 |
| From: | Wells R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML19329E643 | List: |
| References | |
| NUDOCS 8006160426 | |
| Download: ML19329E646 (19) | |
Text
o TEST 140NY OF ROY A. WELLS. JR.
1 My na=e is Roy A. Wells, Jr. and I reside at 3 +80 Northlands, Jackson, Michigan. I as currently the Executive Director of Environmental and Project Sertices for Consumers Power Company, Jackson, Michigan (Consu=ers Power) and have worked in this capacity since Januar/1976.
I was graduated from Case Institute of Technology with a bachelor of science degree in electrical engineering. I received a masters of business administration degree from Western Michigan University and a casters of science degree in management from Massachusetts Institute of Technology. I have also studied at MIT as a Sloan Fellow. I am a registered professional engineer in the State of Michigan.
I have been with Consumers Power continuously since 1960 and have served as a laboratory engineer, laboratory measurements super 71sor and assis-tant manager of general sertices. In 1970, I was appointed the Executive Director of Environmental Activities for Consumers Pover.
The purpose of this testimony is to review the environmental impacts anticipated to occur due to construction activity at the Midland Project between approxi=ately Dece=ber 1,1976 and Septe=ber 1,1977, and to analy::e their ef-fects on the environment. These impacts and effects are reviewed based upon the alternatives of continuation or suspension of construction during the pe-riod specified. For the reasons to be discussed, it has been concluded that the impacts of construction activity and their anticipated effects on the en-vironment will be minimal to nonexistent and that suspension of all construe-tion activities may, in fact, expose the environment to a higher risk of adverse impact and effect than would continuation. I have examined the environmental i= pacts by considering the projected construction activities for this 9-month 8006160
]
2 period as set forth in the testimony of Gilbert S. Keeley, discussing construe-tion practices and environmental impacts with on-site workers, considering the standard construction practices at the Project, and viewing the site and its environs.
The adverse environmental i= pacts of continued construction while the remand proceedings are in process should be assessed in light of the con-struction that has already occurred. The application for the Midland construc-tion pemits was filed on January 3,1969 The construction pemits were issued on December 15, 1972, but under the exe=ption procedures in effect at the time authority was extended to the Applicant to engage in certain preliminary con-struction activities prior to their issuance. Site activities were discontinued in November of 1970 because pmlonged hearings regarding the issuance of con-struction permits appeared to be inevitable. However, even by November of 1970, much of the adverse environmental impact of construction had already occurred.
Construction was resumed after issuance of the permits in 1972 and has been continuously in progress since that date although the level of activity has varied from double-shift to minimal construction.
Virtually all of the significant construction impacts identified in the FES have already taken place. General preparation of the site, including clearing, is essentially complete, with no remaining activ1ty planned that will result in clearing of bushes, trees, or the like.
Clearing of a s=all amount 1'
of sod and brush is still required within the dike area on the floor of the pond but this is considered to result in an insignificant environ = ental i= pact.
Site excavation for major construction activities is also essentially complete and remaining excavation will require no further clearing or site preparation activity in previously undisturbed locations. The activities to be undertaken during the period from December 1,1976 to Septe=ber 1,1977 will result in a l
3 ver/ small portion of the total environmental impacts of constructing the project.
ENVIROIDENTAL IMPACTS OF CONTINUED CONSTRUCTION The significant construction activities projected for the period of December 1,1976 to September 1,1977 and their anticipated i= pacts are classi-fied by site location and described below. They are also identified in detail by the mat;rix attached as Consu=ers Power proposed Exhibit 9 Auxiliary Building Concrete placement activities are scheduled in four areas during the relevant period:
(1) Control Tower area valls and slabs; (2) Fuel Pool area valls, scheduled for co=pletion in Februar/1977; U) Radvaste Equipment area valls and slabs; and (4) Solid Radvaste Addition, scheduled to begin in May 1977 The principal environmental i= pacts arising from these activities relate to noise, fumes and dust associated with the transport of concrete.
Containment 91 Building
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Concrete placement activities are scheduled in four areas during the period:
(1) Interior Concrete Cover Slab, scheduled for January and Februar/
1977; (2) Shield Walls against the Liner Plate, scheduled for April and May 1977; (3) Containment Exterior Concrete and Placement of the Dome Cover, scheduled to begin in July 1977; and (4) Primarf Pedestal, Secondar/ Shield Walls and Letdown Cooler Walls, scheduled to begin in August 1977. The principal environmental impacts arising from these activities relate to noise, fumes and dust associated with the transport of concrete.
Containment #2 Building Concrete place =ent activities are scheduled in three areas during this period:
(1) Containment Exterior Concrete and Dome C*er Slab; (2) Primar/
Shield Walls, scheduled to be completed in May 1977; and (3) Letdown Cooler Valls,
4 scheduled only for the month of December 1976. The principal environ = ental impacts arising from these activities relate to noise, fu=es and dust associ-ated with the transport of concrete.
Turbine Building 31 Concrete placement activities are scheduled in two areas for this period:
(1) Main and Auxiliary Bay, scheduled for December 1976 through March 1977; and (2) Exterior Wall to grade, scheduled for December 1976 through March 1977. The principal environ = ental impacts arising from this activity relate to noise, fumes and dust associated with the transport of concrete.
Turbine Building $2 Concrete placement activity is scheduled in one area for this period.
Concrete will be placed for Elevated Slabs during the months May 1977 through July 1977. The principal environmental impacts arising from this activity re-late to noise, ft:nes and dust associated with the transport of concrete.
The above concrete placement activities are nomal in any construction proj ect. These activities will require the transport of approximately 38,500 cu yds of concrete, necessitating approximately 5000 concrete truck trips.
The impacts from these activities are minimiced through the use of good construc-m tion practices. An efficient and clean concrete batch plant is operated on-site to reduce the truck traffic required offsite. With proper attention to mainte-nance and operating practices and the application of filters on the fly ash and cement silos, the t atch plant operation is practically dust free and results in essentially no environmental impact. Washing of trucks involved in concrete transport activity is restricted to areas where the water is contained in holding ponds with sufficient holding time to allow settling of solids before releasing the water offsite. Proper maintenance of trucks and equip =en and restriction of operations to nomal daytime working hours reduce the impacts of noise and
5 fumes to a minimal level even on-site. Considering that the residential area closest to the concrete placement activity is approxi=ately one mile away, it is concluded that the offsite i= pact of noise and fumes from the concrete transport operations vill be nonexistent. Likewise, dust will result in no offsite impact, as the prevailing easterly winds vill direct any unusual dust movement toward the industrial area centered approxi=ately three-quarters of a mile from the center of construction activity. On-site dust resulting from movement of the trucks between the concrete batch plant and the place =ent area is controlled by watering trucks used as conditions require. Dust is also re-duced because the portion of the site road near the batch plant is paved.
In conclusion, the principal environmental i= pacts associated with concrete placement activities scheduled during the period December 1,1976 to September 1, 1977 are identified as noise, dust and fumes. Through proper op-erational planning, maintenance of equipment and trucks, and the use of good construction practices, these impacts have been reduced to an insi nificant E
quantity offsite. 'Iherefore, continuance of these activities during the period under review will not result in any significant adverse environmental i= pact.
Yard and Miscellaneous Structure Work Eight major activities in this category are scheduled to occur during the period December 1,1976 to September 1,1977. These are:
(1) Eartireork associated with Yard Service Water Piping and Electrical Duct Work during May through August 1977; (2) Earthwork, Concrete Placement and Devatering for the Circulating Water and Service Water Building for the period Dece=ber 1976 through August 1977; (3) Earthwork associated with the Site Sewer Lift Station scheduled for two months with completion in February 1977, and earthwork by The Dow Chemical Company for piping on its land to connect its sever treatment system to the Midland Project; (4) Earthwork and Concrete placement for the
6 Process Steam Tunnel and Administration Building foundation, scheduled for January to August 1977; (5) Earthwork and Concrete place =ent for the Circulat-ing Water Discharge Structures and Yard Circulating Water Pipir4, scheduled for April through August 1977; (6) Earthwork associated with the Evaporator, Auxiliary Boiler and Water Treatment Buildings scheduled for May through August 1977; (7) Earthwork and Dewatering for the Energency Pond Service Water Return Piping, scheduled for five months with completion in Au6ust 1977; and (8) Earth-work for Plant backfilling to grade, scheduled for May through Au6ust 1977.
The concrete placement associated with the Yard and Miscellaneous Structure work will require approximately 20,000 cu yds of concrete and neces-sitate approximately 2,500 total truck trips. 'Ihe environmental impacts asso-ciated with these activities will be essentially the same as those previously discussed with regard to activities at the Reactor Complex, and are likewise considered to be insignificant offsite.
The earthwork required by the activities discussed in this sectien is predominately excavation, backfilling and leveling.
The principal i= pacts resulting from these activities are noise and dust and, to a lesser degree, vehicle fc=es.
For the same reasons discussed in the preceding section, these impacts are also considered to be insignificant offsite. As most of the earth-work activities are centered around the reactor complex and yard area, the nearest residential area is approximately one mile away, and therefore the offsite i= pact of noise, dust and fumes is negligible.
Other potential environmental i= pacts from earthwork operations are soil erosion and siltation. Soil erosion has bean min 4mized by mulching, seeding cnd fertilizing appropriate areas as soon as the earthwork, which may include backfilling, grading, leveling and contouring, is ccepleted. This preventative pro-cess _is applied to sections of tp to a thousand feet at a time depending upon the
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7 activity and erosion risk involved. Grass catch has been excellent and this procedure has been generally very effective. In sections where the earth is continually excosed to water, such as around holding basins and flowing streams, rip-rap is used in sizes and amounts as necessary for further stabilication.
Because of these practices, soil erosion due to construction activity on-site is for all practical purposes nonexistent. Continued construction activity in the period under review will be of the same nature as that which has already 4
cecurred and will be controlled in the same manner, and should therefore have negli6ible environmental impact.
Siltation into County drains, Bullock Creek and the Tittabavassee River is minimized by the use of holding basins installed at strategic locations on-site. The basins are located to collect all runoff from site construction areas where there is a risk of siltation. They are large enough to allow a sufficient holding time for suspended solids, largely in the form.of soil, to j
settle out before the water flows out of the basin over elevated rock-type weirs.
To ensure their continued effectiveness, the holding ponds are dredged to pre-vent their filling up with silt. There are approximately 10-15 such basins now in use, and they are relocated as construction activity moves. Under normal construction and precipitation conditions, the effluent frem these holding ponds is noticeably clearer than the water flowing into the site area from natural water sources such as Bullock Creek. However, the siltation impact due to con-struction activity will continue to be insignificant.
I As noted above, some of the construction activities associated with 1
l the Yard and Miscellaneous Structure work will require dewatering. The questiens of construction impact on groundwater and water tables in the area of the site were discussed in the FES; there is no anticipated adverse impact on domestic f
water supplies. The presence of an impervious clay layer in the site area earth produces a perched water table in the sand above the clay. Water for domestic
m 8
wells in the vicinity is drawn from an artesian aquifer which exists in the sand and gravel underlying this clay layer.
Since dewatering will draw only d
from the perched water table, there will be no impact on water supply. Dewater-ing from the Circulating Water and Service Water Buildings and for the Service a
Water Retum Piping win cause a drawdown only in the immediate locale of these facilities. The only other potential impacts of dewatering would be erosion or siltation into the local water bodies caused by runoff of the re-I sulting water discharged above ground. Erosion and siltation are effective 3y controlled by discharging any significant quantities of water from dewatering operations in the yard and building areas into the cooling pond. Most of the water then evaporates and a small amount percolates into the earth. A vezf small percentage makes its way to a holding basin which feeds into the discharge j
structure to the Tittabawassee River located at the eastem side of the pone'..
Since the pond area is now totally enclosed, there is no possibility of this water leaving the site at any other location.
Plant Area Backfilling and Comoletion of Cooling Pond Dike Four months of activity are scheduled to begin in May 1977 related to general backfilling in the Plant area and continuation of seeding, mulching and rip-rapping of the cooling pond dike. These activities all involve general earthwork with the attendant potential for environmental impact from noise, dust, soil erosion and siltation. These activities are no different from those already discussed, and their impacts will be controlled and minimized in the same manner, resulting in essentially no environmental impact.
Pond Makeun Pumphouse and River Intake Structures Backfin earthwork and dewatering activities associated with the Makeup Pumphouse and Intake Structures are scheduled for the entire period under consid-eration. A cofferdam of sheet piling has been constructed at the area of interface
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9 of the intake structure with the River, and prevents disturbance to the River by the excavation. The excavation is essentially completed; the major activity r-4ning is backfilling. Through the same controls as previously described and generally for the same reasons previcusly discussed, the remaining excavation will create minimal environmental impact from the same potentials of noise, fumes, dust, erosion and siltation. When dewatering is required for this activity,
.1 clean water will be returned directly to the River, and, when necessary, the water will be pumped to a holding basin to prevent siltation impact.
Pond Area The major constntetion activity required for the cooling pond, includ-ing basin excavation and development of the dike, has been completed. Seeding, mulching, and rip-rapping of the dike to prevent soil erosion are essentially complete except about 7% of the dike which is located in the vicinity of the intake and discharge structures. The only major activities still required for the cooling pond are sod and brush removal in the interior and leveling on the interior surface. The potential impacts are noise and dust. Noise impact will j
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be minimi::ed by restricting working hours to daytime, and dust impact will be 2 -
alleviated by watering practices as previously described. A completed discharge structure located on the eastern boundary of the pond is presently used in ces-junction with a holding basin to aid in controlling the min 4==1 water runoft from the pond area and thus siltation.
Construction Activitf Generally Other environmental impacts which may result from ongoing construction at the site are described in the following paragraphs.
Construction Work Force Traffic congestion and a certain amount of dust, noise and fumes occur when the workers travel to and from the site. During the period under review,
10 the Midland Station work force will gradually escalate from an aversge of approximately 1,200 to 2,250 workers. Although this win result in some further increases in traffic congestion, dust, noise and fu=es, the incremental impact is minimized by the fact that industrial traffic is com=on to the area since The Dow Chemical and Dow Corning Companies employ over 11,000 e=ployees. In 4
addition, the previous widening of the peripheral Poseyvine Road at the entrance to the construction area win centinue to mitigate congestion, and the site-associated pemanent, improved (blacktopped) access road win divert traffic away from residential areas on Miller Road.
Sanitary waste is presently stored on-site in State-approved holding tanks and tmeked offsite by a State-licensed hauler. Connection with The Dow Chemical Company's sanitary waste treatment plant is undezvay, and its completion during the period in question will cause the offsite trucking of sanitarf vaste to cease.
Delivery and Use of Construction Materials Vehicles arriving with construction materials and related supplies also result in some traffic congestion, noise, dust and fumes. The congestion impact is reduced by the measures noted in the previous subsection. Deliveries occur during normal working hours which helps to keep the adverse impact of noise low. Dust is centrolled by water trucks as previously discussed, and the impact of fumes is also minimal offsite.
Construction vastes will be burned on-site or handled by receptacles.
The contents of the receptacles are tmeked offsite to a State-approved landfill.
Esthetic Imcact The principal esthetic impact of construction activity has already occurred with site clearing and preparation. Also, some structures have been erected on-site, building foundations installed, and components and materials a
11 have arrived. View of ongoing construction activity is obstructed by the cooling pond dike, tree sc reens, and distance of residences fro = the site.
Also, the Poseyville Laydown Area abutting Poseyvine Road has been fenced.
Considering the surrounding industrial area, continued construction during the period in question will not have any significant additional esthetic impact.
REDRESSABILITY AND FORECIOSURE OF ALTERNATIVES Most of the potential environmental impacts of continued construction during the relevant period and their associated effects are transitory, such as noise, dust, fumes and esthetics, and thus, redressability need not be consid-ered. The foreclosure of alternative uses of the land has already occurred to a certain extent. As more specifically analyzed in the table attached as i
Consumers Power proposed Exhibit 10, it is estimated that it would cost approx-imately $59,000,000 to totally reverse all construction activities co=pleted through December 1,1976. Restoration would include removal of concrete and other structural compenents, backfilling and replanting. Given further concrete placement of 58,500 cu yds and additional backfill of 280,000 cu yds during the period under review, the overall cost of redressability will be increased by
$42,000,000. The estimated times required for site restoration activities are also set out in proposed Exhibit 10.
Pursuant to the requirement imposed by the AEC in the Midland FES, the intake structure has been designed to mini-ize i= pact on the fish population of the Tittabawassee River. The design of the intake opening will result in a nomal intake water velocity of approximately 0.5 fps with a maximum velocity anticipated to be 1 fps. This design will provide for a " sweep velocity" across the face of the screens at the intake opening, caused by the nomal water flow in the river, and will result in a minimum impact on fish from i=pingement.
Construction of this structure began in August 1976 and will continue throughout
12 the period under review, with cc=pletion scheduled for Nove=ber 1977. Because of the design requirements, the intake structure should not require modification.
However, such modifications are never co=pletely foreclosed.
The environ = ental impact associated with a potential modification would be insignificant except for minor siltation i= pact on the River from a major rebuilding requiring installation of another cofferda= at the River interface.
The routing of the sanitar/ wastes from the Midland Plant to The Dow Chemical Company's treatment facility is planned for completion by April 1977.
Installation of major yard sanitary systems is essentially complete. Installa-tion of the sanitary system lift station, required to transport the vastes to Dow, is scheduled to occur during January and February 1977 with two additional months required for hook-up to Dov. Alternate approaches to handling of offsite vastes will not be foreclosed due to this activity.
ENVIROM4 ENTAL EFFECTS OF CCNTINUED CONSTRUCTION The following paragraphs summari::e the effect on the environment of the impacts of continued construction discussed above.
Since the offsite envimnmental i= pacts are essentially negligible, the effects are also insig-nificant.
Noise, Dust and Fumes The amount of noise, dust and fumes is controlled as previously dis-cussed. There are ver/ few remaining flora or fauna on-site due to the advanced stage of construction. Nearly 100% of the required land clearing has been ac-conplished and only about 15% of the land within the site boundaries is undis-turbed. The ver/ mall area that is undisturbed, which is in the southeast portien of the site, consists mainly of low grassy ground cover and shrubs around the extreme outer boundaries of the site and is suitable only for cover l
for small animals. Some wildlife is noticeable, but no unusual species are
13 evident and remaining construction activities will have little effect on what animals do remain. There are no unusual or unique flora to be considered since the only remaining types on-site are lowland second growth hardwoods and old field vegetation, both of which result from prior disturbance.
Offsite flora and fauna will be at =ost minimally affected by con-struction activity during this period. As described in the FES, the perimeter of the site is approximately 50% industrial area,10% residential area and 40%
residential / faming area. The prevailing winds carry the noise and dust toward the industrial area.
Natural cleansing action of rainfall will tend to wash from the vegetation any small amount of dust that might be carried offsite.
The fact that faming, with inherent noise and dust impact, is active in a large percent of the nonindustrial area bordering the site further supports the mini n1 incremental effect on offsite flora and fauna that may result from continued construction activity.
Siltation The construction control processes for minimising the amount of silt and turbidity entering local water bodies frc= holding basin effluents effec-tively protect aquatic life frem adverse effects. The natural characteristics of the Tittabavassee River and Bullock Creek indicate nomally high levels of turbidity and siltation which restrict the number of species and the density of aquatic population. Any abnomal short-term increase in the turbidity or siltation of offsite effluents due to conditions such as unusual rainfall would cause an insignificant incremental effect on aquatic life. The nomal effluents, as mentioned earlier, are less turbid than the river itself. There is no reason, therefore, to expect that additional construction activities scheduled to Ser : ember 1,1977 will result in significant effects to aquatic life.
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14 ENVIRONMENTAL IMPACTS OF SUSPEITDED CONSTRUCTION The envirorsental impacts associated with suspension of construction activities include soil erosion, dust, siltation and esthetics. Suspension of construction activities could well increase the risk of envircraental impact.
A description of the i= pacts associated with suspension of specific construction activities follows.
Buildings The primary impact associated with suspension of concrete placement is the prolongation of the period of esthetic i= pact which results from unfinished 4
construction activity. This esthetic impact involves the appecance of concrete for-ns, visible rebar, open excavations, etc. As noted previously, concrete placement for a number of buildings is scheduled to begin prior to December 1, 1976 and continue during the period under review. Concrete placement or the preparation for it will have started prior to December 1,1976 for the following buildinr, and will be left unfinished if a suspension occurs:
e I.
Auxiliary Buildir4 A.
Installation of Control Tower walls and slabs.
B.
Installation of Fuel Fool area walls (to be completed February 1977).
C.
Irna11ation of Radwaste and Equipment area walls.
II.
Containment Building #1 A.
Installation of Interior Concrete Cover Slab III. Containment Building #2 A.
Installation of Containment Exterior and Dome Cover.
B.
Installation of Primary Shield Walls (to be completed May 1977).
C.
Installation of Letdown Cooler Walls.
D.
Installation of Secondary Shield Walls and Reactor Vessel Pedestal.
l e.2 15 i
IV.
Turbine Building #1 A.
Installation of Main and A.1xiliary Bay.
B.
Installation of Turbine Generator Pedestal Base and Colu=n.
C.
Installation of Exterior Wall to grade.
D.
Installation of Exterior Wall and Feedwater Pu=p Pedestal.
Earthwork Activities Two impacts associated with suspension of earthwork activities are the increased risk of erosion and siltation resulting from extended exposure of excavations and mounds of earth to runoff from rain and melting snow.
Erosion would also be more severe in areas i=properh dressed, mulched, seeded or rip-rapped. The continued exposure of inactive excavations and other earth-work to the natural elements would create uncontrolled erosion runoff, bypassing the drainage ditches and holding basins with resultant siltation into water bodies. Likewise, without proper attention, the holding basins would soon f411 from siltation and become ineffective, cllowing silt to flow almost unimpeded from drainage areas into the River.
The potential for environmental d= pact from dust will increase if construction activity is suspended. Without proper dust control by watering operations the ground surface would be exposed to natural wind erosion and increased dust sources would result due to the freeze-thaw cycle of winter months. In addition to the impact from dust itself, dust blowing in an uncontrolled manner would have an esthetic igaet.
Another adverse environmental impact resulting from suspension of construction activity would be the continued esthetic i= pact of unecmpleted earthwork such as open excavations, mounds of earth, and the lack of backfill and leveling.
16 The earthwork activities that will result in the above adverse environmental impacts if a construction suspension occurred are set forth in the first column of Exhibit 9 I.
Yard and Miscellaneous Structures A.
Installation of Yard Service Water Piping and Electrical Ductwork B.
Installation of Cire Water Building and Service Water Building Base and Walls C.
Installation of Yard Sanitary System D.
Installation of Potable Water Piping E.
Installation of Cooling Pond Piping II.
Plant Area Backfill and Completion of Cooling Pond Dike III. Construction of Pond Makeup Pumphouse and River Intake Structures WORK FORCE As set forth in the testimony of Gilbert S. Keeley, if construction were suspended, a minimal work force including manual workers, engineering staff, and maintenance and security forces would be maintained at the site.
Therefore, impacts associated with traffic congestion and disposal of sanitar/
waste would not be ec=pletely eliminated.
REDRESSABILITY Some of the environmental impacts associated with suspending construc-tion such as noise and dust are transitor/ and as such redressability need not be addressed. The increased levels of turbidity and suspended solids in natural water bodies caused by a suspension of condruction could be aliminated by re-starting some construction activity. As noted earlier the construction site may currently be restored at a cost of $59,000,000 and this anount would increase little, if at all, if construction were suspended.
17 ENVIR0m4 ENTAL EFFECTS OF SUSPENDED CONSTRUCTION The effects on the envilen=ent of nomal construction activity were concluded to be insignificant. The insignificance was a direct result of planning and the use of construction practices directed at minimi=ing environ-mental inpacts. To suspend constmetion and stop such practices would increase environmental effects by -increasing dust, erosion, siltation and extending esthetic impact.
The effect of increased erosion would be to increase the silt loading on the River thus introducing increased levels of turbidity and suspended solids.
It is very difficult to quantiff' this increased siltation since it will largely be the result of unpredictable quantities of rainfall and snow melt runoff during the suspension period. It is, however, a certainty that siltation vill increase. Since it is difficult to predict the quantitative siltation increase, it is likewise difficult to predict its effect on aquatic life. The environmental effect of increased dust conditions is also difficult to quantify. Since the prevailing vind direction is from the west, most of the dust will be directed toward the industrial complex of the northeast and east boundarf of the site.
It is unlikely that offsite residential areas will be affected except during periods of extremely high vinds. The flora at the site boundaries would receive an increased dust loading.
Althou6h it is very difficult to quantify the increased environmental effect due to suspension of construction activity, all indications are that they would be more adverse than 'the adverse effect of continuing construction for the period under review.
/
Exhibit 9 d
MIDLAND STATION g.
SUSPENSION HEARINGS n-noise, trucks & equipment t - rumes, trucks & equipment POSSIBLE ENVIRONMENTAL EFFECTS d - dust, trucks & equipment e - utended esthenciapact OF CONTINUED OR SUSPENOED CONSTRUCTION s - soil erosion c - siltation (DECEMBER 1.1976 TO SEPTEMBER 1.1977) w-sontinued temporary samtary waste disposal Y
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DEC JAN FEB WAR APR MAY JUN JUL AUG ACTivlTIES 1976 1977
N PT.MT PR1'IC E22Libit 10 S::I RESTCRATIC3 31*:.T EST:.vATID RIST3A**:N N A*
St SPTC'T20 ES*CPATION *l2:IS ($ x 1.C00) *M E
AC*Y'""Y tESC3MM 12 1-76 M.i-(Es) 1.
Sensve :1kes & Fill. Place Pond 3 Previous Ezisting Grade.
3,350,000 CT @ $3/0T = CO,500,000 (Plus 33,000,000 !acalatica) 313,500
$13,500 2
2.
Oispose of Rip-Rap & Sand. Reenve Pond Outlet structure and Underground Utilities. (Included in Item No. 1) 0 0
2 3
Restore Topsoil in All Areas (807,000 CT J 35/CT) 4,800 4,800 2
4 Seed All Areas (1,000 Acres @ $1,000/ Acre) 1,000 1,000 2
5.
Restore Trees ($50/ Tree x 1,000 Acres x 10 Trees / Acre) 500 500 2
6.
Retndid Roads (5 5 Miles x 366,000/ Mile) 363 163 1*
7.
Restore 6.0 Miles of trains (Leave sullock Creet acd Waite-Detalt Orains*As-is") (6.0 Miles x C6,000/M11a) 96 96 2
8.
Remove Railroad 3rittge 200 200 1
9 Remove Access Road Bridge LO LO 1
10.
Fences & To-:porary SuW' tm (Salvage Valua = Removal Cost) 0 0
1 11.
Tracsuission Li:ss Vill Remain 0
0 0
12 Resove Meteorological
- overs (25)
(25) 1 13.
Reserve Structural C:ncrete to Elevation 6Ch', Assumes On-site 3uried Disposal (Leaves 20,000 CT in plate) 26,120 55,360 23 t
14 Remove River Intake structure 20 2,770 1
15.
Remove Power Block 3ackfill (Up to 290,000 CT which remains to be placed from 9-1 76 to 9-1 77) 1"6 1,1C4 23 16
- otal 46,35c 9,708 3 **
17.
Listributables (15% of Itea #16 to cover supervision and other support efterts) 7,033 11,956 13
- otal of Items 16 & 17 53,923 91,M4 19.
contingency (lot of Itee 18) 5,392 9,166' 20 Rounding 315 170 21.
Total Isti=mtad 0:st of Restoration 59,000 101,000 Additional Assumptiocar A.
Redredging cf Tittabewassee River not Required 3.
Selvage value = Removal Cost for Mechanical Equipment (Pumps, Pipe, Structural Steel, Liner Plate, 2tc.)
After other site restoration After contracts are 1st, t
i