ML18227A888
| ML18227A888 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 05/09/1973 |
| From: | Coughlin J Florida Power & Light Co |
| To: | Anthony Giambusso US Atomic Energy Commission (AEC) |
| References | |
| Download: ML18227A888 (5) | |
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Florida Power
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%1iami, Florida 3/101 James Coughlin DATE OF DOC:
5-9<<73 DA~i~ 3 C' 5-11-73.
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A. Giambusso ORIG
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Ltr submitCing pursuant to Para.
4,0 A.l,i of Appendix "E3".Tech Specs...Info regarding program established for assessment of impacts from turbidity in discharged water from co'oling system.....
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FLORIDA POWER 5 LIGHT COiblPANY May 9, 1973 Mr. A. Giambusso, Deputy D3.rector for Reactor Projects Directorate of Licensing U. S. Atomic Energy Commission Washing ton, D. C.
20545 R0P JIatoI'y Filo Cy.
Re:
Turkey Point
+ Units Docket Nos.
0-5 and 0-25
Dear Mr. Giambusso:
MAY11 1973m~
'U.S.
AT-lIIIC ~RIEPZiY 4
In accordance with paragraph 4..0 A.l.i. of Appendix B, Env3<onmental Technical Specifications (ETS), issued with Facility Operating License DPR-'41 on April 10, 1973, Florida Power G Light Company hereby submits in three signed originals and 19 additional copies the program established for assessment of impacts from turbidity in discharged water
-"rom the cooling system defined in ETS 1.0 d.
A grid o s=..Ipling points has been established to include the area po d
s L d h'd d's h
g s o c g
+ on1 a w 1 1 wr af+ontod hn w 1 d oner
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n sow
%ha virl also includes enough of the surrounding area to provide an unaffected zone for comparison.
The grid is located on a series of concentric circles about the outfall selected by predicting the most distant points where turbidity increases could be 0.96T, 0.56T, and 0.16T.
Sampling stations are located at. the intersections of these concentric circles with transect lines radiating from the outfall.
Data will be taken in 'accordance with the following program if turbid waters (in excess of 10 JTU above ambient) from the operation of the licensed facilities or from construction and testing of the cooling
'ystem are being discharged to receiving waters (i.e., Card Sound or Biscayne Bay) as a result of:
(A)
A once-through cooling mode being used, or (B)
Institution of other modes of operation invol'ving discharges into either Card Sound or Biscayne Bay.
1.
TURBIDITY MEASUREMENT AT CANAL MOUTH Turbidity will be measured at the mouth of Card Sound Canal and/or Grand Canal in accoraance with ETS 3.0 3.
2.
OTHER TURBIDITY MEASUREMENTS Samples taken at the grid locations described above vill be used to prepare a map showing location and relative turbidity 3j.09
Qa Mr. A. Giambusso 0)
May',
1973 of the area.
Any significant and contributory physical condition occurring at the time will also be recorded.
For example:
a..
High Winds direction and velocity b.
Waves when they could be a significant. influence on the turbidity of the area.
c.
Silt Barriers if present, shall be noted along with their location in relation to the turbid areas.
The location, time and date of collect-'on of the samples will also be recorded.
3.
SAMPLE COLLECTION PROCEDURES
. Turbidity samples will be collected from the top two feet of water.
Enough samples will be taken during any given sampling to insure that the samples are statistically valid and repre-sentative of the area. in which turbidity occurs.
Equipment such as the Hach model 2100A turbidimeter will be used for measurements.
The units of measure will be formazene turbidity un'ts.
(Calibrat'on of 'nstrument based on a ratio oX '5 grams of hydrazene sulfate and 50 grams of hexamethylene teramine and one liter of distilled 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.)
4 ~
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 made.
PARAMETERS FOR ASSESSMENT OF THE IMPACT OF SEDIMENTATION ON MARINE ECOSYSTEMS (To begin as soon as conditions (A) or (B) above continue or are expected to continue for more than one month)
A square meter will be permanently 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, a one-half inch thick layer 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 already on the bottom.
- 4. 1 Species Composition Once a month the number and species of the macroalgae and selected fauna in each of the quadrants shall be determined.
The counts for each of the four quadrants in each square meter are to be kept separately.
I'
-- "-Mr. A. Giambus so a.)
May 9, 1973 4.2 Growth Rates The blade width, length, and blades per plant and the rate of growth of a representative number of blades
- is to be determined for the dominant grass Thalassia
~ in a 10 centimeter square area of each square meter.
The height, diameter, and other applicable measure-ments of coelenterates and porifera in each square meter will be made each month.
4.3 Benthic Xnfauna Every other month a sample of the benthic infauna will be collected at each station and analyzed as described 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 two-foot square areas where silica sand was put. down.
The deposit of the sediment above silica sand will be measured.
The type of sediment will bo described.
This will be corre-lated with changes in the epibenthic fauna, benthic
- infauna, macroalgae,
- porifera, and coelenterates.
Yours very truly,
'~James Coughlin Vice President JC rp cc:
Mr. Jack R.
Newman
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