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 r-r-'Dif** Mr..* A. Deputy Directdr 1or Reactqr Directorate of .Licensing. , U. S. Atom,tc Energy Commission ' Washington, -D. 20545 .

Dear *Giainbusso:

. Re: . Turkey . . 4 .: . ' *:..*_* "

• _ FLORIDA POWER & LIGHT COMPANY ;_, __ , 1' M,a y

• 9 , 1 7 3

• I o *::...,-In accordance. wi tp

• paragraph 4. 0 A .1. i. of Appendix. B, .Envir.onmental *. Technical issue4 FacilLty Operating License DPR-:-41 on April 10, .* 197 3, _Florida Power & 'Light Company here:Qy. sub.mi ts in .t:tre_e 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 potentially affected .. shpu'ld any-tui:'b-i9 .discf!arges occ.ur .*. The grid also inctudes enough: of. the -su*rrounding ,. to provide .. an fected zone for* comparison; ... The grid is 1ocat.ed qn .a* s*erie*s, 9f concentric *Circles* about the outfall 'selected .by.

• tne most distant points where turbidity be 0.56T, and 0.16T. Sampl-ing . stations a+e located at inters.e.c;tions .. of* these concentric circi'es with transect lines radiating.* from the out.fall. -**' 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 licehsed or'.,from"rionstruction and ot the system.are to 6ard Sound or Biscayne:Bay) I . * . '* . . . (A) . _ "J:. 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. * '*.' -----.............. ___:________ -_...__ __ --------*-._.. ---*. _ ... __ ...__ .._,__ ---.-r ___ :__ ----. (. ' 1. *TURBIDITY MEASUREMENT AT CANAL* MOUTH ' -. J, 2. ' .* I

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

• and/6r. Grand.tanal in .aqcordance with 3.0 3. , OTHER TURBIDITY MEASUREMENTS *:.. '*<*>i ?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

' . ' .e Mr. *A. Giariibusso -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 turbid The. location,. time and date of. collection of the samples will al so be.* recorded. : ,,-3. COLLECTION PROCEDURES Turbidity samples will be' col.lected. from the top .. two feet of

• water. Enough samples will be any given iampling. to insure.that the samples are statistically.valid.,and.repre:.... sentative of the area.in which 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 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 are for more .than one :mbntl;l) A square meter will be bottom* near each sample location. divided into four equal.quadrants. staked.out.on the estuary The square meter will* be -_ Located near but not within the quadrant, one-half inch ____________ .. t.hick .. ___ sand _ wilL.be.:.put .. on-the bottom .. in. ______ _. __ : ____ _ area.two.feet square *. It.is to be* of* grain size.which closely* meets the: grain size of sediments 6n the bottom. 4.1 Species Composition Once a.month the number and species of the macroalgae and.selected in each of the quadrants.shall be determined.* The counts each ot the four quadrants. in.each are to be kept separately. -..

. . -** _,.r . ; Mr.: G1ambusso .* .. May.9;.1973 4.2 The .. blade .. <width, length,'. and blades. per plant. and .. the: rate of growth. of a *number of blades._ is to be *determined. for the d0minant grass Thalassia in a 10 centimetei .area of ea6h square meter. *The height, .diameter, and bther _ments .of coelenterates and porifera in each* square -.met'er will be made.each*month. 4.3. Benthic Infauna. Every* other morith of the infauna: w.ill be* *coliected'*at each station and analy.zed *as* d,escribed_ in ETS 4.0 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 down .. The: deposit 0f the above.silica-sand measured. The* type*-of .will b_e. described. This will* be. co'rre:""'.' :, lated* w.i th changes: in'* the epibenthic ,benthic i.nf aurta' macroalga_e,; -:p.o_rif era*, and tes . *, . Yours* very trul.Y., _ . , r .:-.. Coughlin _ * ' -, -* * ;* .... JC :rp. !' cc:

• Jac*k R. 'Newman ... ' . _____ -..!, ________ -* ... -----*----______ ...... ___ ---------------------,--*----.-.-.-*--,---* *"