ML17252A981

Letter Regarding Turkey Point Plant Units 3 and 4. Submits Copies of the Program Established for Assessment of Impacts from Turbidity in Discharged Water from the Cooling Water System Defined in ETS 1.0.d

ML17252A981
Person / Time
Site:	Turkey Point
Issue date:	05/09/1973
From:	Coughlin J Florida Power & Light Co
To:	Giambusso A US Atomic Energy Commission (AEC)
References
Download: ML17252A981 (3)

Text

_ . o . BOX 3'.00 MIAMI'. F.LoRmA 3310_1

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• _ FLORIDA POWER &;_,LIGHT __ ,

COMPANY 1'

M,a y

• 9 , 1 ~ 7 3 *

• Regulator~:

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Mr..* A. Giambu~po, Deputy Directdr 1or Reactqr Proj~cts:-

Directorate of .Licensing. ,

U. S. Atom,tc Energy Commission '

Washington, -D. C~ 20545 . . .

Dear Mr*~ *Giainbusso:

Re: . Turkey 4 .: . '

.D..

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In accordance. wi tp

• paragraph 4. 0 A .1. i. of Appendix. B, .Envir.onmental *.

Technical Specificatioris;(ET~), issue4 ~ith FacilLty Operating License DPR-:-41 on April 10, .* 197 3, _Florida Power & 'Light Company here:Qy. sub.mi ts in .t:tre_e ,si~tie.d;~origJnals *and.~.-!~ addi_~j,ona,l copies

• the program establ_ished for as,sessment 9f impacts* from* turbidi_ty in ..

• discharged water from the: cooling* sys tell} .defined in. ETS 1. b d. * *. :," (.

A grid of sampling. points has been.* estq.bJ,.ished* to l"nsiud~ th~ are~

" ' potentially affected ..shpu'ld any- tui:'b-i9 .discf!arges occ.ur .*. ~ The grid also inctudes enough: of. the -su*rrounding a:p:~a ,. to provide . an un~f fected zone for* comparison; ... The grid is 1ocat.ed qn .a* s*erie*s, 9f concentric

• Circles* about the outfall 'selected .by. pr~dicting

• tne most distant points where turbidity increases,coul~ be 0.~6~,. 0.56T, and 0.16T.

Sampl-ing . stations a+e located at the~ inters.e.c;tions .. of* these concentric circi'es with transect lines radiating.* from the out.fall.

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Data will be. taken*. in accordance with :the .following* program if turbi.d waters (in. exce'ss of 10' JTU abo.v:e -ambien't) from the operation of the-licehsed ~a~ilities or'.,from"rionstruction and testi~g ot the ~ooling.

system.are b~ing-discharged to receiving*wa~ers (i~e., 6ard Sound or Biscayne:Bay) asa.re~ult.q~: I . * . '*

(A) . _"J:. one;.~-- through cooling mode being. used, *or Ins ti tu ti on* of, other* iJtodes of.. opera ti on involving .

di s_charges. in.to either Card Sound or Bis.caytie. Bay~ * '*.'

- -- ~ - - _~:_ .............. ___:________ - ~ _...__ __ ~,_ ~- - - -- - - - - *- ._.. --- *. _ ... __ ...__ .._,__ - - - .-r ___ :__ - - -

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1. *TURBIDITY MEASUREMENT AT CANAL* MOUTH ' ' .* I *

- . J, Turbidity will *be measured at the mouth,"of Card Soun'& Ca.nal

• and/6r. Grand.tanal in .aqcordance with _E~~ 3.0 3. *~

2. OTHER TURBIDITY MEASUREMENTS

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?amples taken at the grid locations described above. wJ11 be,,

used* to 'prepare ci. mp.p showing lo ca ti on arid .. rel.a tive : turb:i;di ty 31Qfl HELPING BUILD FLORIDA

Mr. *A. Giariibusso

.e -2.,... May 9, 1973.

of the area. Any.significant and contributory physical condition occ*urring at the time willaiso be'.recorded.* -For example: *

a. - High Winds - direction and velocity

b.

• Wav*es. - when they could be a significant influence on.the turbidity of the area.*

c. . Silt Barriers* *- if present, sha11 *be *noted along with their location in.relation to.th~ turbid ~reas.

The. location,. time and date of. collection of the samples will al so be.* recorded. : ,-

3. SAMPL~ COLLECTION PROCEDURES Turbidity samples will be' col.lected. from the top . two feet of

• water. Enough samples will be taken.d~ring any given iampling.

to insure.that the samples are statistically.valid.,and.repre:....

sentative of the area.in which tur~idity occurs ..

Equipment such as the Hach model 2100A turbidimeter will.be used for measurements.

• The un-i ts. of measure will be formazene

• turbidity units. (Calibration *of instrument based.on a ratio.

of 5 grams of hyclrazene*sulfate and 50 grams o~ hexamethylene terainine ahd one .liter of c1istilled _water, after. standing for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />. 'This gives a standard of 4000 JTU.). *

• Before measurement, *the sample will be shaken vigorously to counteract settling of particles.in the sample bottle. Air.

bubbles will be allowed* .to come out. of the sample before measurements are. ma.de .. '

• 4. * .PARAMETERS .FOR.ASSESSMENT OF THE IMPACT OF SEDIMENTATION ON

. MARINE ECOSYSTEMS (To begin_ as soon_ as conditions (A) or.-* (B) above continrie o~ are e~pected to~continue for more .than one

mbntl;l)

A square meter will be per~anently staked.out.on the estuary bottom* near each sample location. The square meter will* be -

divided into four equal.quadrants.

_ Located near but not within the quadrant, ~ one-half inch

____________ .. t.hick .. lay_er~_of_silica ___ sand _wilL.be.:.put ..on-the bottom .. in. an~_: ______ _.__ :_____

area.two.feet square *. It.is to be* of* grain size.which closely*

meets the: grain size of sediments alr~ady 6n the bottom.

4.1 Species Composition Once a.month the number and species of the macroalgae and.selected faun~ in each of the quadrants.shall be ..

determined.* The counts fo~ each ot the four quadrants.

in.each squa~e.meter are to be kept separately. -

_,.r **~*~- . ; *---~

Mr.: A~ G1ambusso May.9;.1973 4.2 Growth:Rate~

The .. blade . <width, length,'. and blades. per plant. and .. the:

rate of growth. of a repres.entativ~ *number of blades._

is to be *determined. for the d0minant grass Thalassia in a 10 centimetei squa~e .area of ea6h square meter.

• The height, .diameter, and bther appli~able measu~e-*

_ments .of coelenterates and porifera in each* square -

.met'er will be made.each*month.

4.3. Benthic Infauna.

Every* other morith ~sample of the benth~c infauna:

w.ill be* *coliected'*at each station and analy.zed *as*

d,escribed_ in ETS 4.0 A.l.a~*,

4.4 _ Sedimentation Rate Every month.a two-inch diameter core will be made of clear plexiglass tube . in each of the twq-foot square.*

areas where; silica Sand~was.put down .. The: deposit 0f the s~diment above.silica-sand will~be measured. The*

type*- of *sedi~ent .will b_e. described. This will* be. co'rre:""'.' :,

lated* w.i th changes: in'* the epibenthic f~una' ,benthic .-

i.nf aurta' macroalga_e,; -:p.o_rif era*, and :coel~ntera tes .

• , . Yours* very trul.Y., _ .

L~~

, ~ r

.:- .. *./.-~*

• ~all}es*' Coughlin _* ' - , -

Vice*Pre~ident. *

• JC :rp.

cc: Mr~

• Jac*k R. 'Newman

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