ML19331B496

Environ Monitoring Program During Const.

ML19331B496
Person / Time
Site:	Perry
Issue date:	07/31/1974
From:	CLEVELAND ELECTRIC ILLUMINATING CO.
To:
Shared Package
ML19331B493	List: ML19331B492 ML19331B496
References
PROC-740731, NUDOCS 8008120344
Download: ML19331B496 (10)

Text

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July 1974 -

ENVIRONMENTAL MONITORING PROGRAM DURING CONSTRUCTION '

OF PERRY NUCLEAR POWER PLANT UNITS 1 AND 2 There are three parts to the Environmental Protection Program. Part One relates to general work practices and addresses vehicle movement, dust control, noise control, and chemical and solid waste taanagement. Part Two covers specific construction activities which merit special attention because of potentialimpact. Part Two includes site clearing and grubbing, excavation, dewatering, barge slip, and Offshore structures. Part Three. ,

involves an ecological monitoring program to observe impacts of construction in adjacent areas or to confirm that such impacts haye not occurred.

This program describes construction practices and monitoring programs which must be followed to limit environmentalimpact. The Applicant will provide administrative controls which assure immediate corrective action when any departure from the described practices occurs. Compliance with Parts One and Two will be assured by a weekly reconnaissance of the site by the Applicant. In addition, a reconnaissance of erosion and se'diment control structures will be made within twenty-four hours after every rain-storm, but is not required more than once in a twenty-four hour period.

Observations on each of the points covered in the program will be maintained in written records which will be kept up-to-date and available for inspection by the Regulatory Staff at all times during normal working hours. These records shallindicate the corrective actions prescribed by the Applicant's inspector for any noted deviation from this program. Completion of the pre-scribed corrective action as noted on subsequent inspections will be docu-mented therein.

Applicant's management will receive monthly reports with respect to Parts One and Two of the Environmental Prctection Program from its own inspectors.

A summary of these monthly reports will be submitted to the AEC Regulatory Staff every six months.

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,A preoperational monitoring report based upon the program in Pait Three, prepared at the Operating License Stage, will include a more thorough dis-cussion of observations of environmental effects observed during the course of construction.

The Applicant will assure that contractors and subcontractors are familiar

. with and that their construction practices are in accordance with the Environ-mental Protection Program as described in Parts One and Two. Records will be maintained by the Applicant to document steps taken to familiarize con ,

tractors with the Environmental Protection Program.

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. .I PART ONE - GENERAL PRACTICES

1. VEHICLE MOVEMENT Areas where uncontrolled traffic can cause severe damage, such as undis-turbed open spaces, will be delineated on a site map and designated as "off limits" areas for all construction vehicular traffic.

For woodland areas, all vehicular traffic will stay within the roadway, access corridor, or utility rights-of-way shown on the site map.

Traffic will be restricted from crossing streams or stabilized drainageways except at approved stabilized crossing locations.

The construction ~ area will be fenced to establish control over access and to implement a construction security program. Cyclone fencing topped with three strands of barbwire will be utilized.

2. DUST CONTROL Dust, smoke, engine exhausts and concrete plant operations represent air pollution potentials which can be controlled. Dry-weather wetting or the paving of the most traveled construction roads will reduce dust generated by vehicular traffic. Bare areas will be seeded to provide a ground cover where necessary. Care will be taken to control smoke or other undesirable emissions. The Applicant will adhere to applicable air-pollution control regulations of Lake County and the State of Ohio as they relate to open burning or the operation of certain fuel-burning equipment. Permits and -

operating certificates will be secured where required. Fuel-burning equip-ment will be maintained in gooc mechanical order to reduce excessive emis-sions. Reasonable precautions will be taken to prevent accidental brudh or forest fires. The concrete plant will be equipped with dust-control systems to avoid excessive releases of cement dust.

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Dust resulting from vehicular traffic on unpaved haul roads and acces's roads

'during dry weather will be controlled by spraying problem areas with water ,

as necessary. Duse from wind action on off-road, cleared areas will be mini-mized by the reseeding of bare areas as part of the erosion control efforts.

Uses of gravel on heavily traveled roads and parking areas during early con-struction activities will further eliminate potential dust problems.

1 Visual observations for excessive dust will be made daily during peak con-struciion activity periods. Existing dust control measures will be modified i

if necessary.

3. NOISE CONTROL Action will be taken to reduce excessive and objectionable vehicular noise.

Standard noise control devices on trucks and other equipment will be pro-vided and maintained in effective condition.

Noise levels at the site boundary will be documented by surveys using a portable sound level meter. Surveys will be conducted bimonthly during I the first year of construction and semi-annually thereafter. Noise levels will be surveyed during periods of peak noise-producing activity.

4. CHEMICAL AND SOLID WASTE MANAGEMENT A settling basin will be constructed in the rechanneled stream east of the plant to intercept runoff from that area. Basins of similar design will be constructed north of the concrete batch plant area to handle runoff from that area. Groundwater pumped from construction excavations will be discharged to these basins. The basins have been sized to permit settling of runoff and wastes prior to discharge of the decantate to Lake Erie.

Liquid wastes, such as fuei:;, lubricants, and bitumens, will be deposited or -

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discharged into tanks for subsequent removal to appropriate off-site locations t .

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for disposalin accordance with state and local standards. Adequate c'are will be taken t6 uvoid handling or storing liquids in close proximity to major drain-age areas, thereby avoiding damaging spills to the site streams. -

Construction scrap and debris will be collected in designated on-site areas for salvage,' incineration, or burial. Incombustible solid wastes will be buried onsite at landfull areas that will be designated in accordance with state and local standards.

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PART TWO - SPECIFIC CONSTRUCTION ACTIVITIES '

1. SITE CLEARING AND GRUBBING Sediment structures will be installed prior to or concurrent with the initiation of clearing and grading operation. Stream stabilization work will be performed prior to or concurrent with the initiation of clearing and grading operations in the watershed.

Clearing and grubbing of the site will be limited to the area needed to constbet the 3cility and to dispose of waste materials within the confines of the site.

Unmerchantable dimber and timlier wastes (slash) will be burned in accordance with the State of Ohio Air Quality Regulation. Brush and tree limbs may be shredded and used as mulch for erosion control on spoil disposal areas. Erosion in the construction area will be controlled by providing piped drainage, intercept and berm ditches, and ground covers where necessary. Earth materials will be deposited and protected in selected areas so that surface runoff will not transport sediments to Lake Erie.

Drainage into Lake Erie will be maintained during construction. Spoil areas will be graded and permanently landscaped to natural drainage patterns. Set-tling ponds will be provided.

Three sedimentation ponds will be established to prevent turbid water run-off to Lake Erie. A dam on the larger stream draining the western portion of the site will establish a pond of approximately 900,000 cubic feet. A dam in the northwest drainage area will establish a pond of approximately 90,000 cubic feet, and a dam in the rechanneled stream east of the plant will establish a pond of approximately 150,000 cubic feet. If the capacity of a sedimentation pond is reduced by about half due to siltation, it will be drained and cleaned out.

Settling ponds will be. maintained for the duration that ground is uncovered.

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2. EXCAVATION AND SOIL DEPOSITION One of tb Wst major operations required under the excavation program is the construct.cn of principal sediment centrol structures and the implementation of an overall soil erosion control program to stabilize the site during ctostruction.

The excavation program willinclude rerouting of the stream east of the plant,

-subgrades for railroads and access roads, drainage structures and channels,.

excavation and drainage of the power block area structures, circulating water lines and pump house, intake and discharge tunnels, and auxiliary and con-tainment buildings.

I Exc'ess spoil removed by excavation will be utilized to construct berms along Parmly Road and to fill a depressed area north and east of the concrete batch

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plant. During and immediately following the filling of each spoil disposal area, the fill will be graded to acceptable slopes to minimize potential erosion prob-lems before turf cover is established.

Until the vegetation has stabilized the disposal areas, maintenance'will be per-formed to correct local areas of excessive erosion. nage from the pro-posed s' poil areas, during and after constructioni will be designed to follow the natural drainage patterns now existing.

Diversion dikes will be constructed to form the settling basins. Spoil areas and '

other erodible areas will be graded to divert surface flow to the settling basins.

i Spoil areas will be graded and maintained to minimize erosion.

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DEWATERING l

As the Lacustrine deposits are the primary water-bearing stratum and are of variable permeability, groundwater will be intercepted near the base of the deposit by a series of interceptor drains and sumps, as shown on Figure 4.1-3.

Other interceptor drains and sumps may be required in addition to or in lieu of those shown, although the amount of groundwater infiltration within the upper and lower till deposits is exnected to be minimal.

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Experience with similar excavations in the Cleveland area indicates that the above measures will be adequate to control the groundwater within the excavated areas. Should zones be encountered where additional measures are required, cutoff walls of sheet piling or of slurry will be !nstalled to control the ground-water intrusion.  ;

Groundwater and precipitation collected in the interceptor drains and excavation sumps during construction will be conveyed to one or both of the large surface run-off settling basins discussed in Section 4.1.3.3. <

Possible dewatering effects on groundwater levels will be monitored at approxi-mately three wells on the site on a beweekly basis.

4. BARGE SLIP Dredging in Lake Erie will be required in 1976 to construct the channel for a barge slip, and limited redredging may be required in subsequent years for silt removal. This barge facility will be used to deliver heavy components, including reactor pressure vessels, to te site. Spoils from dredging will be disposed of on shore. Due to the limited extent and frequency of this dredging, there should be no significant environmentalimpact from this construction activity.

5. OFFSHORE STRUCTURES Construction of the intake and discharge facilities will be carried out by means of a drilling platform. These platforms are positioned over the center of the hole to be drilled and then hydraulically jacked up from the lake bottom into the working position. The drilling of the intake and discharge riser tunnels will require 6-foot diameter shafts. The drilling will be accomplished l

inside of a casing anchored t,o the lake bottom, such that all spoils material -

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will be brought up the casing above water and can be loaded into barges for l

disposal either on shore or at an approved lake disposal site. By means of l ,

i this construction technique, only a minima 11ake bottom

• area will be affected i

and, therefore, this operation should have no significant environmentalimpact.

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PART THREE - ECOLOGICAL MONITORING PROGRAM

1. TERRESTRIAL This monitoring program is designed to detect changes in sensitive param-eters at the Perry Nuclear Power Plant site. Its functions will be two-fold to provide information needed to decide whether an observed change is caused by construction-related activities or by other environmental factors not re-lated to construction; and, in the case of deleterious changes which are ,_

caused by construction, to provide guidance in recommending changes in procedure to minimize or eliminate, if practicable, the causes of the observed changes.

Populations of Tipalaria discolor will be marked for easy location during semi-annual visit! . Individuals of each population will be counted twice each year, in ear?.y spring and late summer, for the duration of the monitoring program, in ordor to discover whether the populations are stable, increasing, or decreasing. Because the densities of these populations are very low, and individuals are represented only by single leaves, density and cover will not

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be calculated.

Upstream of the relocated length of stream, observation wells will monitor changes in water table, and surface water levels will be observed.

Raptor nests will be censused in the spring of each year to measure fledgling success and recruitment.

Reports will be made by July 1 and January 1 of each year of the monitoring -

program.

Reports at the end of the first year will describe and locate the Tipularia populations. In later years of the study, reports will cite evidence of any and a11 observed changes, whether related to disturbance or not.

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2. AQUATIC '

The basic objective of establishing a construction aquatic monitoring program is ultimately to prevent unnecessary stress brought about by plant construction activities and w protect the aquatic environment. The program is designed to be sufficiently comprehensive in monitoring all major elements of the aquetic system that could reasonably be expected to detect effects from plant construc-tion- As construction monitoring data are obtained, data evaluation will be accomplished early enough to implement remedial action, should such action be required, before permanent damage to the ecosystem has occurred. An -

analysis report of constructional data compared against preoperational data will be prepared every six months during the construction phase. The report willinclude descriptions of water chemistry, bacteria, and benthos, with reference to appropriate baseline ecological data.

As noted in Chapter 4 of the PNPP Environmental Report, the primary effects of construction of the PNPP on Lake Erie will be the disturbance of the benthic community due to increased turbidity due to construction of the barge slip and approaches. In addition, sanitary wastes from the factory-built sewage treat-ment units will be discharged into Lake Erie.

During the construction of the PNPP, the fo11ow'.4g physical and chemical parameters will be analyzed on a monthly br as: pH, total solids, dissolved solids, suspended solids. tt:rbidity, oil ud grease, BOD, nitrates, and phos-phates. The samples will be collected along transects '., 5, and 9. During barge slip construction and dredging, the sampling frequency will be in-creased to weekly.

The biological monitoring program will include benthic invertebrates and l bacteria. Samples will bc Sbtained on a seasonal basis (spring, summer, and fall) . ,

Benthic samples will be taken with a benthos suction pump to assure that ,

consistently representative samples are obtained. Samples will be collected at two locations on tra'nsbets 1, 5, and S.

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