ML20064J409

Summary Rept on Monitoring of Fog Conditions at Farley Nuclear Plant,Dec 1977 to Nov 1978

ML20064J409
Person / Time
Site:	Farley
Issue date:	03/01/1979
From:	ALABAMA POWER CO.
To:
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ML19261B804	List: ML19261B803 ML19261B812 ML20064J402 ML20064J406 ML20064J409
References
NUDOCS 7903060289
Download: ML20064J409 (60)

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{{#Wiki_filter:. FARLEY NUCLEAR PLANT

SUMMARY

REPORT ON MONITORING OF FOG CONDITIONS DECEMBER,1977 through NOVEMBER,1978 l l l 79030602ftj l

e Summary Report on Monitoring of ( Fog Conditions at the Farley Nuclear Plant The purpose of this report is to comply with the Farley Nuclear Plant Technical Specifications 3.1.l(b)-2, Monitoring of Fog Conditions. The Monitoring of Fog Conditions Study was conducted in accordance with the Environmental Non-Radiological Surveillance Procedure for the Joseph M. Farley Nuclear Plant of Alabama Power Company, No. FNP-0-ENV-NR8, entitled Procedure for Determining Visibility, Farley Nuclear Plant (see Attachment 1). The results of this study are summarized in Figures 1 thrJ 24 and Tables 1 thru 24. The figures are monthly scattergrams which illustrate the relationship between visibility and dew point data collected at the Farley Plant at the 10-meter level and the 61-meter level. As indicated in the legend on the figures, the weather conditions prevailing at the time of observations were broken down into seven basic categories, each category being assigned a letter code for plotting purposes. It should be noted that these scattergrams do not contain data classified as clear (c) or cloudy (L) for distances greater than 5875 ft. This data was not plotted because the large volume of data in these categories made the scattergram illegible. Therefore, a correlated monthly summary of all weather conditions by time of day and dew point sensor elevation has been included in Tables'l thru 24. These tables illustrate the total occurrences of each type of weather conditien and the time of day it occurred. Missing values in the figures and tables are due primarily to dew point sensor malfunction.

4 . ( Tables 1 thru 24 indicate that fogging occurred more frequently in the fall, winter and spring months and the fog was observed primarily at sunrise. The incidence of fogging varied between 0 and 7 times per month and averaged between 2 and 3 times per month per year. Based on this year's test program, it is recommended that the Monitoring of Fog Conditions required in the Technical Specifications for Unit #2 be deleted.

m ,r. 3e flGURE 1: ELEUATION=le METERS DECEMBER 1977 D H E ae - u R P A O R I L H 1e - T F L R T R h n P L E E k R A R T u R E ( i ~ '- l I l l l l a e sees aeee seee 4eee sees seee veee LEGEND C c cLEaa H Ha2E ) DISTANCE (FEET) Lc(ousy G' FOG ANS RAIN h I

l O 30 - FIGURE 2: ELEUATION-61 METERS DECEMBER 1977 si D E 20 - U H P O R } gi 10 - - R l T F R t E M 0-P E R LR LF l A T FR U R E ( D - 2 0 -- E l l l l l l G e 1000 2000 3000 4000 5000 6000 7000 LEGEND C c ettaa u nazc ) ) DISTANCE (FEET) t ct0cov n earn F t 0C $ SHOW C.FOC AMD SAtH i e

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~ O 30 FIGURE 4: ELEVATION =61 METERS JANUARY 1978 D E 2e - U c P O L R I R H 10 - T T R E N e -- H P E L R L A T U - l e -- R E ( D -2e-- E l l l-l l l ? o e rese 2eee aseo 4eee seee seee

7ee, LEGEND C

c ctram u Haze ) DISTANCE (FEET) L-c(Nov a aam 4 F04 AND aAIN t

O 30 ~~ ~ FIGURE 5: ELEVATION =10 METERS FEBRUARY 1978 D E 20 - U P O gi 10 -- 0 T R T R j E R M [ g_ P R E L 0 R E A T U S R E ( D - 2 0 --- ----- ; --{ g c 0 1000 2000 3000 4000 5000 6000 7000 LEGEND C c cuna n Harc ) DISTANCE (FEET) [*,,ewovn;; j G*F04 AND R41M

r FIGURE 6: ELEVATION-61 METERS FEBRUARY 1978 D E ae - U P O R I N 18-- T F L R C T RR E g t. R, E H R Y A T ~ u -te - s R R E (j -ae - 7-o e toes aeee sees 4eee seee seee 7ees LEGEND c c etra a*c 3 DISTANCE (FEET) L:(* ";"am G F04 AND RAIM

y' N. O 3e -~ tlGURE 7: ELEUATION-te METERS MARCH 1978 D E 2 e -- U H P O L t R 1 L R C H 1e - G R T L T H E F M G e"~ F P y E R A H T U R E ( D -2e-- -{ l } l j--- ---- p - c e lese 2eee 3ees 4eee seee seee vees LEGEND g C* CLEAR H* HAZE 3 DISTANCE (FEET) )$'* ['g C+ FOG AND RAIN

.m 3e -~ FIGURE 8: ELEVATION-61 METERS MARCH 1978 D E 2e -- U H O L I-C I G R n 18 - T g, k T E M g.. P F E R A II T U -le - R E ( D - a e -- i o e seee aees asse 4eee sees seee 7000 LEGEtiD g c CLEAR H teAZE 3 DISTANCE (FEET) L**7"*"$ G40G Ar*O RAIN i

I .O 1 l l l 3e - APRIL 1978 l FIGURE 9: ELEUHTION=le METERS i D E 28 - l u C R 0 0 g I f N l e -- G T H T E M e -- P E R A T U -l e -- R E ( -2e - l {- { {- g q a e 188e aees aees 4eee seee seee vees LEGEteD C c.u tan u naze 3 DISTANCE (FEET) L-((**v ";"a* G. FOG Ae4D RAIN

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.~ l 's 3e ~ FIGURE 16: ELEUATION-61 METERS JULY 1978 C D G c e e -- R y P O I N 1e - T T E M e -- P E R A T U -l e -- R E ( E ~ '~ T I ~ l i-T I c e 18ee asee seee 4eee seee seee vee. LEGEND C c ctE*' H "aZE DISTANCE (FEET) L *c(**' "**@ y 4* FOG AMS RAIN p e 'e

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== 6 j l l a n m t I gyg ggwgp HWE1WECMDEW "OW

O, ELEVATION-61 f1ETERS AUGUST 1978 FIGURE 18: D l E W 4 P O I N T T E M P Dew Point Sensor Malfunction E R A T U R E ( D G LEGEND C c.ctsan u.emst ) DISTANCE (FEET) L C L*"" * ** 8 " F=f04 S*$NOW g Cat 0C EMS MIM l k e

1. a

,.rm 3e FIGURE 19: ELEVATION =le METERS SEPTEMBER 1978 D h E 2e -~ H U P O I H 1e-T T E M P s E R A T u - t o -- R E ( !~'~ l l I I I I o e tees aeee aeee 4eee seee seee 7ese LECEND C c.ctran u-unrc 3 DISTANCE (FEET) L'CS"";'Z C FOC ANS RAIM i

O FIGURE 20: ELEVATION 61 METERS SEPTEMBER 1978 i D E W P O I N T l DEW POINT SENSOR MALPINCTION T E M P E i R A T U R E ( e D E l G LEGEND 1 C c.ctram w wart I DISTANCE (FEET) L*CL*** ****8" F.F 04 $=SMOU G= FOG AND anlN

O. i 9 3e FIGURE 21: ELEVATION-le METERS OCTOBER 1978 D E 28 - U L P F O I F N 18 - T g T E M e --- P E i R c A T U - l e --- R i E i ( I 0 E l l l l l l 1 o e sees aees asee 4eee seee seee vees LECEND l C C= CLEAR M*HA2C ) DISTAHCE (FEET) F FC, " "S*5 MOW -t L-CL "*3" 4 Ca&0C AND DAIM i

\\ l -e i FIGURE 22: ELEUATION=61 METERS OCTOBER 1978 D E P O I N i T DEW POINT SENSOR MALFUNCTION I T E M P E R A T U R E ( D i E c ? j LEGENS C c.c = w-unar ) DISTANCE (FEET) L cL*'N "****" j F.F04 5*SM0W l i S.F04 aMD SalM f M wm

9 gf. u l 6 s Oe e .,.4 e 4 S wru um _e M25 e zam i a E ". CO U3 r. a gg O W.w O o W E a.a o _ g so II E W E W i W D 1-g Z e O e H T W W IA k E W H G W W E _G U e Z n C G 7 M m ~ Z O C G W G C e D R3 W J W G u -g N ew LeJ M30

== b I i i I e e e e M N w m i I OW3 C.CMZW H W E Q. W 2 C H 3 2 W wAW c om e e e - Se

O FIGURE 24: ELEUATIOH-61 METERS HOUEMBER 1978 g D E ae-u P N O R L g I H 10 - { T t T E n P E R A T U -l e -- R E ( i l -ae-l i l l l c e rese asse seee 40ee seee sees 7eee LEGEND C CLEAR H+ HAZE DISTANCE (FEET) )*,Cy"*"*8", G FOG AND RAIN I I

t TABLE 1: FilEFJ:iNCY TAdLE OF MEATi!ER SY TI.'4E OF DAY ~ ( e40Nrrl= 12 ELEVATIO'4= 10 METERS TI45 0F DAY WEATHER SUNRISE NOON SUNSET TOTAL _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _ _ _ _ + - - - - _ _ + _ _ _ _ + _ _ _ _ _ CLEAR 10 19 19 48 ____-______--_+_ -__ _ _ + _ _ _ _ _ _ _ + _ _ _ _ 't HAZE I O O 1 ______+-______+-____% OLOJDY S 7 9 24 ____ _________+_______ ____ RAID 2 4 3 9 _ __--_____+- .e.__.:.__+______+-__ FOG 4 0 0 4 _______-_____+_______.e..

-----_+ ___

FOG A'JD.?AIN O O O O ___-__________+_____ + _. - _ _ _ _ _ SNod O O O O _ _ _ _ _ _ _ _ _ _ _ + - _ _ _. t TOTAL 25 30 31 86 ( Table 2: FREQUENCY TABLE OF WEATHER BY TIME OF DAY -( '40NTM= 12 ELEV ATI O.1=61 M ETERS TI.tE OF DAY

1. dATHER SUJRISE NOON SUNSET TOTAL

-(' CLEAR 15 19 17 51 ___ ________i.__ ____ ____ +___ -( HAZE I O O I ___________---___.i.__ CLOU.)Y 9 9 9 25 O - - - - - - - - - - - - + - - - - - - - - + - - - - - + - - - RAIN 2 4 3 9 ___ __________+ ____ O. FOG 4 0-0 4 -______._____.i.____ - + _ lO ' FOG AND RAIN O O O O t -+---- + - - - - - - + - - - - - - - - + - - - - - - SNOM 0 0 0 0 _ _ _ _ + _ _. - _ _ _ _ - ____.-_.i. O, roTAL 31 31 28 90 I O. O_ O.' 9 0.

t TABLE 3: FREQUENCY TABLE OF.1EATHER SY TDIE OF DAY 4 0NTf f= 1 dLEVATION=10 METERS TI 4 E 0.: DAY WEAT:lER SUNAISd NOON SUNSET TOTAL __ _____ _.i._____ ____ CLEAR 12 15 15 42 +____ ____________+ HAZd 0 1 0 1 -____________+_____ CLOUDY 9 11 12 32 ___________.i. .____.i.________.i._____ RAIN 3 1 2 6 _____________.i._______ _____ _____ + . 0G 5 0 0 5 ______________.i.____________%_ FOG AND RAIN 1 1 0 2 ______________+___ ___+__ ___.i._____ SNo;I O O O O ______+_____ TOTAL 30 29 29 88 TABLE 4: FREQUENCY TABLE OF WEATHER BY TIME OF DAY 10N TH= 1 ELEVATION =6i METERS TI4E OF DAY a EATlidR SUNRISE N00N SUNSET TOTAL ___________ _.i.______.i._ ___ _- - _ _ _ _ + - _ _ OLEAR 3 6 6 22 ______________+ _____ __ __ 1 _____ 1 ( HAZE O I O I CLOUDY 5 6 4 15 +________i._ RAIN 2 0 2 4 _____________ _______+____ O Foo 0 0 0 0 _____________+ ______ ___ 1 FOG AND R AIN O I O I O + - - - - - - - - - - - - - - - - - - - ' - - - - - - + - - SNon 0 0 0 0 ____eig_______ l O roTAL 15 16 12 43 O 2 A) . O \\ l 1 0-t w eg

t \\ TABLE 5: FRt:09EN. Y TABLE OF rlEATHER SY TIME OF D4Y 40 NTH = 2 ELEVATION = 10 METERS TI:4E OF DAY .43Ari!ER SUNRISE NOON SUNSdT TOTAL _____________ % ________+_____ ________+__ _ _ OLEAR 10 to 19 48 ___+_______% ______+__ ___

LAZE 0

1 0 1 CLOUDY I2 3 6 21 ______________+_____ RAIN 4 3 2 9 _ _ _ _ _ _ _ _ + _ _ _ _ + _ _ _ _ _ + _ _ _ _ FOG 1 1 0 2 _ _ _ _ _ _ _ _ _ _ _

• _ _ _ _ _ _ + _ _ _ _ _ + _ _ _ _

+ FOG AND RAI:I I O O I - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _ _ _ _ _ _ SNod O I O 1 ____________+______ TOTAL 29 28 27 83 i. TABLE 6: FREQUENCY TABLE OF WEATHER BY TIME OF DAY 740 NTH = 2 ELEVATION =61 METERS TI4E OF DAY ilEAT-fER SUJRISE-NOON SUNSET TOTAL 1 __________________.i.__ CLEAR 10 17 17 44 _ _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ ( HAZd 0 1 O I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ + _ _ OLOJDY IO 3 4 17 O - - + - - - - - - - + .4AIN 3 3 2 8 l l0 -FOG 1 1 0 2 +____ _ _ _ _____+ _ _ _ FOG AND RAIN I O O 1 O - - - - - - - - - - - - - - + - - - - - - S.40il 0 1 0 1 O rOTAL 2s 26 23 74 O' G O~ t 0 0 0

d s TABLE 7: FRE]UuriCY TAdLE OF.itiATilhR dY TIME OF DAY t 0:iT;l= 3 ELEVATI0i4= 10 METERS TI'AE 0 DAY rilATHER Sf1NRISE N00Y SUNSET TOTAL _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _ .+-___ CLEAR / 18 19 44 ---__________+--_____+___-_+_____%______ liAZE I O 2 3 _--______ ____.s.--_____e _____% ---__- m -____- CLOUDY 10 5 4 19

---

________+_-_____+-___+_______4_-__

A AIN I 2 0 3 -__-____-____+ ____+____+-_-____e_____ =0G 3 0 0 3 _ _ _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _

_____+ _ _____%

FOG tid RAIri 1 0 1 2 S:fon O 3 0 0 __ _-_________.i.--_-_-_ ___ _ ____ TOTAL 23 25 26 74 i TABLE 8: FREQUENCY TABLE OF WEATHER BY TIME OF DAY ADNTH= 3 ELEVATION =61 METERS TI4E OF DAY tlEA THER SutlRISE N00N SUNSET TOTAL CLEAR 6 16 12 34 HAZi 1 0 2 3 . _ ___.i._____ +___ CLOUDY 9 4 3 16 0 - - - - - - - - - - - - + - - - - - ~ - - - - - + - - - RAIN O 2 0 2 O. F03 2 0* O 2 _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _ F03 AND dAIN I O I 2 0 - - + - - - - - - + - - - - - + - - - - - SNO.i 0 0 0 0 O TOTAL iv 22 le 59 O, 0 ~O O, 9 . O:

i ' TABLE 9: FRd34=FICY TABLE OF MEATHER SY TIME OF DAY 40il rei= 4 ELdVATION=10 METERS TI:4E OF DAY .1:i ATHEN SUNRISE N00N SUNSET TOTAL ______ _ _____+-____ +-___*_______.%_____ OldAR 17 19 25 6i ____________+_______+____ ( ifAZE I O O I ___________.i.____ + _ _ _ _ + _ _ _ _ _ CLOJDY 7 7 4 18 __-_______ --_+__ _ ___% _____ +_____ + _ _ _ _ RAIN 2 1 1 4 ___________ _ +_______+_____+_____ _+___ _ FOG 2 0 0 2 _____________ +__ _ _ _+ _ ____+_______+ ___ _ .00 AND RAIi1 1 0 0 1 ______ _______+_______ ___ _+__ S/40.1 0 0 0 0 __i.___________ + _ _ _ TOTAL 30 27 30 87

s TABLE 10:

FREQUENCY TABLE OF WEATHER BY TIME OF DAY -10 NTH = 4 ELEVATION =61 METERS TI.42 0F DAY idEATHER SU.iRISE N00:1 SUNSET TOTAL _____.i.______%-__ ( OLEAR 14 12 I4 40 ____ _________+-_____ _+-___ _ ___ '( HAZE I O O I _ _ _ _ _ _ _ _ _ _. _ _ _ + _ _ _ _ .i. _ __% _ ____4 CLOUOY 4 5 3 12 ( HAI:1 2 0 0 2 _________________.i._. !O FOG 1 0 o i _____________+_____ FOG AND R AIN O O O O O - - - - - - - - - + - - - - - + - - - - + - - - - - +---- SNOW 0 0 0 0 O r0TAL 22 17 i7 56 0 1 ' O l g Ok tv ( l l !O i i

y l 1 l l\\ TABLE 11: FRE'JUENCY TAHLE OF.1EATHER :3Y TIME OF DAY 40!4TH= 5 ELEV ATION=10 METERS ' TIME OF DAY 15A THER SU.4 RISE NOON SUNSET TOTAL _ _ _ _ _ - - _ _ _ + _ _ _ _. _ _ _ + _ _ _ _ _ + _ _ _ _ _ CLEAR 9 11 14 34 ___ _________+_ ___ __+ - ___+_ ___ __+____ _ HAZE 2 0 0 2 +____w___+________+____ CLOUDY 16 2 10 28 _____________+_______+ -- + JAIN 2 5 7 'I4 __ _______.___+____ __+ ____+ _ _____+_ ___ FOG 2 0 0 2 e __ ____ + -_-_. _+--___ _____ FUG AND HAI4 0 0 0 0 --+ _ _ _ _ _ + _ _ + - - _ SNoiv 0 0 0 0 __ __________ ____.___+_ ___+_______% TOTAL 31 IS 31 80 4 TABLE 12: FREQUENCY TABLE OF WEATHER BY TIME OF DAY .10 NTH = 5 ELEVATION =6i METERS TIME OF DAY iEATHER SUNRISE NOON SUNS:T TOTAL _ _ _ _ _ + _ _ _ CLEAR 9 19 11 39 _ _ _ _ + ( HAZE O O O O ClodOY 12 3 5 20 ( RAIN 2 1 5 II _ ____ _____+ ___ Q FOG 2 0 0 2 l FOG AND dAIN O O O O O - - - - - - - - - - - - - + - - - - ' - - - - - - - - - + - - - - - SNoti 0 0 0 0

____+_______.i._____

O TOTAL 25 26 21 72

O O

O Oi y.i p + ..7+

---

e-M y

~ 1 I ( TABLE 13: FHt0UdNCf fASLS OF ddATHER SY TIME OF DAY 40NTit= o ELEVATION =10 METERS TI.46 0F D AY rlEATHER SUNRISE NOON SUNSET TOTAL- --__% __ __ _+___

_ _ __ _.i. -

CLEAR 15 3 12 30 _ _ _ _ _ + _ _ _ _ _ _ _ + - - _ _ _ _ + _ _ _ _ _ HAZE O O O O _ _ _ _ _ _ _ _ _ _ - + - _ _ CLOUDY 13 2 14 29 ____________%______s_____+___ RAIN 1 O 4 5 _ _ __ _ _ _ - - _ m _ _ _ _- _.e.__ --. * -_ _ e F00 0 0 0 0 ______.--__.i.____. _ _ _ _ + _ FOG AND RAIN O O O O +___ + _ _ _ _ _ SNOW 0 0 0 0 TOTAL 29 5 30 64 TABLE 14: FREQUENCY TABLE OF WEATHER BY TIME Oi' DAY M.)NTil= 6 ELEV ATION=6 I METERS TI4E OF DAY W EAT-idR SUNRISE NOON SUNSET TOTAL ____+_ _ ~ ____ CLEAR 15 22 12 49 ______________+ _ ___ __ _ __ t HAZd 0 0 0 0 CLOUDY I1 7 14 32 g ___________+__-___ HAIN O O 4 4 _ _ _ _ _ + - - Q F00 0 0-0 0 FOG AND RAIN O O O O O - - + - - - - + - - - - + - - - - + - - - SNon 0 0 0 0 _ _ + _ _ _ O, TOTAL 26 29 30 85 i ~ Oi. O O i Oi

TABLE 15: 4 P HbO:J ef4C f 1 AitL= OF .1 AlithH dY TIAtt OF DAY 40N Til= / E.sVATION=10 METERS TI4E OF DAY . WEATHER SUdRISE N00N SUNSET TOTAL __ ______.i.__ ___ _ + ___ _ + _ _____ % ____ _ CLEAR 10 9 11 30 ______ _____.__+ ____ ______+ __. HA 7.E 4 0 0 4 CLOJ0Y I1 3 20 40 ___-__________.i.-___+___+___' RAIN O 3 0 3 ___ _ _+ ___+-__ FOG 0 0 0 0

. ___+

_ _ _ +. _ _ FOG AND RAIN O O O O -_+_____.e. __.e.-______+____ SNod 0 0 0 0 __________.i.._. TOTAL 31 15 31 /7 TABLE 16: FREQUENCY TABLE OF WEATHER BY TIME OF DAY .t0NT4= 7 ELEVATION =.61 METERS TI:45 0F DAY NEA THER SUNRISE NOON SUNSET TOTAL CLEAR 3 3 4 10 _ _ _ + _ _ - _ _ _ _ _. _ + ( DAZE O O O O _ _ _ + OLOJJY I O I 2 ( - ______+________+______ dAIN O I O I + - _ _ !O =0G 0 0 0 0 t __--_-___.i.___-

_____+

FOG AND RAIN O O O O G - - - - - - - - - - - - + - - - - - - + - - - - - + - - - - - - ~--- SNOM 0 0 0 0 . __________+____ e__ O TOTAL 4 4 5 13 O C s ,Or m w-

i + I TABLE 17: FRETJd*1CY TABLE OF tlEATHER SY tis.tE OF DAY '40.lTH= 8 ELEVATION =10 AtETERS TI.4E OF DAY / LEATHER SUditISE NUON SUNSET TOTAL +____ _i.__ ____.i.______ CLEAd 15 20 20 55 _ + ____ % ____ _ +__ _ _- +_ __ HAZd 0 0 0 0 _ _+ __.i.______+___. _ CLOUDY l4 8 8 30 + _ _ _ _ _ RAIN I O 3 4 _____________%-____.i.____.i.____ FOG l C 0 1 _________.i.__ F00 A.'ID RAIN O O O O ___. w ___ ___+ S_'J U i 0 0 0 0 _________.i.__ .. _ _ _ + _ _ + _ _ _ TOTAL 31

• 2S 31 90 TABLE 18:

FREQlJENCY TABLE OF WEATHER BY TIME OF DAY z.10'J fH= S ELEV ATI ON= 61 AIETERS TI:.(E OF DAY MEATdER SUNRISE NOON SUNSET TOTAL _______.._________.i._ .,. _ _ _ _. _ _ _ + _ _ _ _ CLEAR 0 0 0 0 .i.___ ( DAZE O O O O __.i. .i.____ CLOUDY 0 0 0 0 ( _ _ _ _ _ _ _ _ _ _ _ _ _ _, - - _____.i.___ RAI1 0 0 0 0 Q FOG J 0 0 0 _ _ _ _ _ i. . _ _ _ _ _ + _ _ _ FOG Ai10 RAld 0 0 0 0 0 SNOd 0 0 0 0 + _ _ + _ _ _ 1 Q TOTAL 0 0 0 0 0 '. O a 0-O !O '

( TABLE 19: FREQUE JCf TABLE OF dEATHER dY TIstE OF DAY 1.t0 NTH = 9 ELEV ATION=10 METERS T!;iE OF DAY .1EATHER SUNRISE NOON SUNSET TOTAL ______________.i._______+_____+________+_____ CLEAR 20 21 20 61 _+_______+_____+--_____% ( HAZE O O I I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ + _ OLOUDY 5 8 9 22 _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _ _ _ _ + _ _ RAIN O O O O _ _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _ _ _ _ _ + _ _ _

0G 4

0 0 4

_____+______4_____

c0G AND dAIN O O O O SNod 0, 0 0 0 TOTAL 29 29 30 88 ( TABLE 20: FREQUENCY I'ABLE OF WEATHER BY TIME OF DAY i. 40'1Tii= 9 ELEVAT10N=6I i4ETERS - TI45 0 DAY dE AT;iEd SU:JRISE NOON SUNSET TOTAL t, _____________ _______+ CLEAA 0 0 0 0 ___+____ __.i.______ ________+_____ (, MAZE O O O O ___________.i._______ _____+_____ OLOUOY 0 0 0 C g _____________+________.____ RAIN O O O O __ _________.i._____ O =0G 0 0' O O _____________.o.______4_____+_____ l FOG CJD RAIN O O O O O' SNod 0 0 0 0 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ + _ _ _ _ _, _ _ _ _ _ _ _ _ + _ _ _ _ O TOTAL 0 0 0 0 i Q O.- 4 = O!

l ( TABLE 21: FHEQUENCY tar 3LE OF MEATHER SY 'TI 4E OF DAY r40:1T3=10 ELEVATION = 10 METERS TIi4E OF DAY .#dATHdR SUtiRISE N004 SUNSET TOTAL _ _ _ _ - _ _ _ _ _ + _ _ _ _ _ _ _ _ _ _ +. _ _ _ _ _ + _ _ _ OldAR 20 27 27 74 + _ _ _ _ _ + _ _ _ _ +___ __ HAZE O O O O i +___.__.i._-____+___ OLOUOY /. 4 3 14 . _ _ _ _ _ _. + _ _ _ _ _. dAIN O O O O .: _+ _ _ _ + _ _ _ FOG 2 0 0 2 -_- ____. ____+___ + _ _ _

____ _ o _ ____

FOG Ai4D RA Ill 0 0 0 0 _ ___+ _____ _ _____._ SNOW O O O O _ _ _+__ TOTAL 29 31 30 90 i TABLE 22: FREQUENCY TABLE OF WEATHER BY TIME OF DAY .40'lTH= 10 ELEVATION =61 METERS tit.12 OC OAY

1. EATHdR SUNRISE N00;l SUNSET TOTAL s

_ _ _ _ _ _ _ _ _ _ + _ _ _ _____+_____ OLEAR 2 4 4 10 ____ ________+_ _____.i.- __ - ______.i. ( fAZi 0 0 0 0 _ _ _ _ _ _ _ _ _ + _ _ _ _ OLOUDY 2 I I 4 . O - - - - - - - - - - - - - + - - - - - -

-----+----

HAlii 0 0 0 0 ___________.,.___.__.i.__ +___ ' O. FOG 0 0 0 0 +__ __ FOG AND RAIN O O O O Ol - - - - - - - - - - - - - + - - - - - - - + - - - - - + - - - - - - - - + - - - SNOM 0 0 0 0 4 __________.i.___ O-TOTAL 4 5 5 14 i I 0! I i O O-e a O 1

O

s TABLE 23: b dcJ u t.n,; f 1AdL OF.1c A l tith u f I'IML Of UAY i 40NTil= 11 ELEV ATIO 4=10 McTERS TIid 0F DAY .VdA T!!E3 sui 4 RISE N 00'l SUNSET TOTAL __ ___ ______+________+______+_____.__+______ CLEAR 12 IS 21 51 _ _ _ _ _ _ _ _ _ _ _ _ _ +. _ _ _ _ _ + _ _ _ _ _ _ + _ _ _ _ _ _ _ + _ _ _ _ _ _ HAZi 0 0 0 0 +_ ___ % __ _ _+____ CL0dDY 7 6 6 19 ____+____ ____+ dAIN O 2 1 3 ___________+______4-__ _+ FOG O' O O O __ _ _ _+ __ _____ % _____+ __ ___ __.

• _ _ _

FO'I AtlD RAIN O O O O _ _ _ _ _ _ _ _ _ _ - + _ _ SNO,e 0 0 0 0 __ __ _______ +_ _____w ____+ _ ___ % ____ _ ( TOTAL 19 26 28 73 i TABLE 24: FREQUENCY TABLE OF WEATHER BY TIME OF DAY .10 flTH= 1 1 SLEV ATIO:l=6 i METERS TI..id 0F DAY aEATHER SUNRISE NOON SUNSdT TOTAL _____________+ ___ w __ _.i. ____ CLEAR 14 20 21 55 _ _ _ _ _ _ _. _ _ _ _ _ + ___-+_____e ( .-f iZi 0 0 0 0 _+ _ __ _ __. s __ __. _ + CLOUJY II 7 8 26 O - - - - - - - - - - - - - - + - - - - - - - + - - - - - - + - - - - - - dAIN 3 3 i 7 ________+___ _ + _ _ _ O F00 0 0 0 0 ___________.i.___._____.+_ + _. _

30G AND RAIN O

O O O 9' + _ _ _ - _ _ _ _ _ + _ _ _ _ SNO1 0 0 0 0 l O-TOTAL 28 30 30 88 O-O m

O, 9

O'

FNP-0-ENV-NRS DATE Angust ??,1978 t Procedure for Determining Visibility FARLEY NECLF.AR PLANT i DEVELOPED BY: i 1 s.. APPROVED 3Y: REVIEWED ST: t:-__v 0.. Y l' l ( ATTACHMENT I .s v. m, -. - o,,- ,,,,n.

E FNP-0-ENV-NR8 August 22, 1978 pg;g 1.0 Purpose The purpose of this procedure is to provide instructions for taking visibility data at the Farley Nuclear Plant and obtaining visibility data from the United States Government's Federal Aviation Authority's Flight Service located at Napier Field, 4 Alab ama. 2.0 Prerecuisites 2.1 A copy of this procedure and an active log sheet vill be kept on the turbine building roof for the observer to use during the performance of this procedure. 2.2 A subscription to receive the Flight Service's weather determinations for Napier Field shall be kept current. This is available from the following address: National C1hnatic Center Environmental Data Service Federal Building Ashville, North Carolina 28801 3.0 Limitations 3.1 visibility observations shall be made within + 15 minutes of sunrise, + 15 minutes of noon, and + 15 minutes of sunset. Sunrise and sunset times shall be determined from official sunrise and sunset tables contained in this procedure (Figures 4 and 5). 3.2 The Federal Avaiation Authority's visibility determination is made on a hourly basis, at 15 minutes till the hour; therefore, times of determinations between Farley Plant and Napier Field will vary accordingly. 3.3 To minimize the possibility of results being affected due to varied fog densities at different elevations, the visibility conditions shall be measured by focusing on the lowest ten feet of each reference point. 3.4 The sunrise and sunset cables in Figure 4 and 5 are sufficient to use for eacn year and need only be adjusted to reflect Day Light Savings time. 4.0 Precedure 41 Observation and Visibility Reference Locations ( ' ,r

FNP-0-tNV-NRS Date August 22, 1978 visibility observations shall be made from the southwest \\ corner of the turbine building roof. Visibility references are large landmarks and are located as shown in Figures 2 and 3. Reference designations, distances and locations are as follows: Reference A - Two concrete poles, looking southwest and located between the railroad tracks and switch yacd fence at a distance of 344 feet. Reference B - East side of switchhouse wall looking west at a distance of 898 feet. Reference C - Southeastern pillar post in the switch yard looking southwest at a distance of 1195 feet. Reference D - The first Delta Pedestal Tower on the Farley/ Finkard Line South, !. D. No. 2, looking southwest at a distance of 2603 feet. Referene-eji-The third Delta Pedestal Tower on the Farley/ Pinkard Line South, I. D. No. 4, looking southwest and located on the far side of state highway 95 at a distance of 4750 feet. Reference I - The fourth Delta Pedestal Tower on the Farley/ Pinkard Line South, I. D. No. 5, looking southwest and located on the far side of state highway 95 at a distance of $875 feet. 4.2 Observation Instructions The observer will look for the most distant reference he can see and place a check. mark in the "Most Distant Xarker Observed" column of the Farley Visibility Log Sheet Form No. 411 (Figure IA, 11, IC). The observer will enter the date, time, veacher condition and distance that corresponds 1 to "Most Distant Marker Obsetved"* column.' The observer will also place his initials in the appropriate column. At the end of each month, Chemistry & Health Physics personnel will collect the visibility log sheets; at that time a new log sheet will be initiated for the next months visibility data. The collected log _ sheet will be submitted to "" usent Control for proper filing and a copy of the, data vill be transmitted to APCO's Chemistry and Health Physics Coordinator. As data is received on a monthly basis f rem the National Climatic Service, it will also be transmitted to the Chemistry and Health Physics Coordinator. A copy of the data shall be forwarded to Environmental and Technical Services, General Cffice, Roem 584. (... r <n

FNP-0-ENV-NR8 Date Aucust 22, 1978 ~

• NOTE: If it is determined that a distance beyond

\\ Rafarence "F' can be observed, e greater than (5875 feet) should be logged in "Most Distant Marker Observed" column and the " Reference G" block checked. 9 O eum M n e 84 m

5 ~.. o' e _y' ,9 ,gl36gsMc o . - g N *, O, = gy gg. , o 4 sT I ,{ h, p. D E E C V N R A ,s TE T NS S AB I TO D S s. IE = _ G DCN F TE SR _ E OE HF D_ E 6_ R C l B = _ A = _ = %3 ii* !'h,' j li1 I I .I l ll. l j^ TT NE AE R LI E I PS I IT RGE O n hOS I 5LI L R or CYN S Y u UTU N N NIS O I -h L l I A YI T R F EB I LI D RS N AI O FV 9 C 1 R Y E D I I U T O A L E C H .I R AEL F C O l T N O H N E I M M IT R I I 1 lt lj, t '*. i bn Oi ~ Il l E T t. i d hhh h h hh h. h hh hhhh h t e ahh hDnhh t i [s,E-(~ t T s s a.3s pi.c5i pn n.p.a.I-t t L t

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r ~ jl ii P' D E E C s l V l R A y TE T NS S s AB I TO D S IE G DC N F TE SR E OE HF D =_ E E. I R C ll D = A L3: Ig,* lll: I iN l I,I I -I i I,i!lI il .I e i l I TT. NE' R AE E Li l l i PS T O B, RG 1 AO e E, L N r O S Y u YO N l g l iTN O I .f NI I A L T R F YI I EB D LI N RS O AI 9 C FV 1 R Y E D i U l T O A L E C H R AEL F C O l TNO H N E I M M IT R I I 1 I 1 . t '.i b n-O i- ,.r I l'- lI e .{ i j !s 'f E nnh_t

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• 4 3

.,"0 3 3 . e ,8 ) .r ~ .g D-E 2,, E C V N R A TE T s NS S AB I TO D S IE G DC TE F N SR _ E =- _ OE HF _ D E I R C i B A L;.- 'I I'IlI \\ i liliI l j.,i .I l TT NE R AE E LI I I I PS T c O RG 1, AOT e ELE r u S S Y u YN N N g TU O I hIS I A il F L T R YI I EB D LI N RS O AI 9 C F V, 1 R Y E D l U i O TA L E C H R i' A EL 'P C O l i ~ TN O l H l E I M M I T R I I 1 I t /- l b t' OI il gl _ l ( E h t i ) N h b h -)8 te h h h h_S h hhn - L15. E t a s i h_h h h I l l T t d. d h h t5 l t,iti : rn [t a6s 2S3TFI D 123 4 S 6 i__S.yO.l Aqs: 6 lU 5,!v pi* T. s r r t t L t t t i J

• s i~

i a1 l j

[ s......... g g _a -s g ) I l 5 i p l 6 E Switch Ilouse. Ref. B 898* \\ s %fuw) 1 ~ / / -t % __l - f _ i b $ !! [ g l y'na' ,a n Observation o l Position [ ~ A* b 1:u2.0 1195' Ref. A 344' Ref.D 2603' O. ne. i X= OBSERVATION POSITIONl,

1. i

~ j'I ~ \\

• 4** * ;)

e= VISIBILITY REFERENCE l OINT i Ref. E 4750' \\ \\ E;l oa f Ref. P 5875' sin.** l E' a m. l .?- E x em 5 as ~***"*L.. d g i I

FNP-0-ENV-NR8' DATE Au ust 22, 1978 Ref. F 5875 f i t Ref. E 4750' O, Highway 95 F ~ Ref. D 2603' { Spillway g g t s i .t I Switchyard Ref. C 1195' l r ( f' Switch Rouse i ( Ref. B 898' I O Ref. A 344' ? Railroad

, : / /+ t+*'-Hf tf f+H f M H+& ~

.- -,e s -; ;,

_l Road l l Cbservation Position X S. W. Corner of Turbine Building Unit i1 Figurc 3 i-I x-

l .NP-0-ENV-NR3 ^ CENTRAL STANDARD TIME

• 7.,

g,.,g SUNRISE YEAR OF 1978 \\ MONTH OF JANUARY MONTH OF FEBRCARY MONTH OF MARCH DATE TIME DATE T7FE DATE TIME 'Jan 1 6:41 Feb 1 6:34 Mar 1 6:09 Jan 2 6:41 Feb 2 6:34 Mar 2 6:08 Jan 3 6:41 Feb 3 6:33 Mar 3 6:07 Jcn 4 6:41 Feb 4 6:32 Mar 4 6:06 Jan 5 6:41 Feb 5 6:32 Mar 5 6:04 Jan 6 6:41 Feb 6 6:31 Par 6 6:03 Jan 7 6:42 Feb 7 6:30 Mar 7 6:02 J cn 8. 6:42 Feb 8 6:29 Mar 8 6:01 Jan 9 6:42 Feb 9 6:29 Mar 9 6:00 Jan 10 - 6:42 Feb 10 6:28 Mar 10 5:58 Jcn 11 6:42 Feb 11 6:27 Mar 11 5:57 Jan'12 6:42 Feb 12 6:26 Mar 12 5:56 Jan 13 6:41 Feb 13 6:25 Mar 13 5:55 Jcn 14 6:41 Feb 14 6:24 Mar 14 5:54 6:41 Feb 15 ,6:23 Mar 15 5:52 ' Jan 15 Jan 16 .6:41 Feb 16 .6:23 Mar 16 5:51 1 Jan 17 6:41 Feb 17 6:22 Mar 17 5:50 Jan 18 6:41 Feb 18 6:21 Mar 18 5:49 Jan 19 6:40 Feb 19 2 6:20 Mar 19 5:47 T 20 6:40 Feb 20 6:19 Mar 20 5:46 w.a 21 6:40 Feb 21 6:18 Mar 21 5:45 Jan 22 6:39 Feb 22 6:17 Mar 22 5:44 Jcn 23 6:39 Feb 23 6:16 Mar 23 5:42 Jan 24 '6:39 Feb 24 6:14 Mar 24 5:41 Jcn 25 6:38 Feb 25 6:13 Mar 25 5:40 Jan 26 6:38 Feb 26 6:12 Mar 26 5:39 Jan,'27 6:37 Feb 27 6:11 Ma. 27 5:37 Jan 28 '6:37 Feb 28 6:10 Mar 28 5:36 Jan 29 6:36 Jan 30 6:36 ' ~ . Mar 29 5:35 Mar 30 5:34 Jan,31 6:35 Mar 31 5:32

• SOURCE - Sunrise and Sunset Tables prepared by:

Nautical Almanac Office United States Obserratory Washi:sston, D. C. Figure 4 1 m

Fnp.0-ENV "on z A"8"'* Ib I'78 em SmDm ns SUNRISE YEAR OF 1978 3CNTH OF APRIL MONTH OF MAY MONTH OF JUNE DATE TIME DATE TIME DATE TIME Apr 1 5:31 May 1 5:57 Jun 1 5:38 Apr 2 5:30 May 2 5:56 Jun 2 5:38 Apr 3 5:29 May 3 5:56 Jun 3 5:33 Apr 4 5:27 May 4 5:55 Jun 4 5:38 Apr 5 5:26 May 5 5:54 Jun 5 5:37 5:25 May 6 5:53 Jun 6 5:37 Apr 6, Apr 7 5:24 May 7 5:52 Jun 7 5:37 Apr 8 5:22 May 8 5:51 Jur: 8 -5:37 Apr 9 5:21 May 9 5:50 Jun 9 5:37 . Apr 10 5:20 May 10 5:50 Jun 10 5:37 Apr 11 5:19 May 11 5:49 Jun 11 5':37 Apr 12 5:18 May 12 5:48 Jun 12 5:37 Apr 13 5:16 May 13 5:48 Jun 13 5:37 Apr 14 5:15 May 14 5:47 Jun 14 5:37 Apr 15 5:14 May 15 5:46 Jun 15 5:37 Apr 16 5:13 May 16 5:46 Jun 16 5:37 5:45 Jun 17 5:37 pr 17 5:12 May 17 Apr 18 5:11 May 18 5:44 Jun 18 5:37 Apr 19 5:10 May 19 5:44 Jun 19 5:38 Apr 20 5:09 May 20 5:43 Jun 20 5:3J Apr 21 5:07 May 21 5:43 Jun 21 5:38 Apr 22 5:06 May 22 5:42 Jun 22 5:38 ~ Apr 23 5:05 May 23 5:42-Jun 23 5:33 (Daylight Savings Tir.e) May 24 5:41 Jun 24 5:39 Apr 24 6:04 May 25 5:41 Jun 25 5:39 Apr 25 6:03 May 26 5:40 Jun 26 5:39 Apr 26 6:02 May 27 5:40 Jun 27 5:40 Apr 27 6:01 May 28 5:40 Jun 28 5:40 Apr 28 6:00 t'a.y 29 5:39 Jun 29 5:40 Apr 29 5:59 May 30 5:39 Jun 30 5:41 Apr 30 5:58 May 31 5:39 S f 9 ~ Figure 4 ...g p

FNP-0-ENV-NR3 i DA3 August 22, 1978 CENTRAL DAY LIGHT SAVINGS TIliE 4 SUNRISE YEAR OF 1978 MONTH OF JULY MONTH OF AUGUST MONTH OF SEPTEMBER DATE TIME DATE TIME DATE TIME Jul 1 5:41 Aug 1 5:58 Sep 1 6:17 Jul 2 5:42 Aug 2 5:59 Sep 2 6:18 Jul 3 5:42 Aug 3 5:59 Sep 3 6:19 Jul 4 5:42 . Aug 4 6:00 Sep 4 6:19 Jul 5 5:43 Aug 5 6:01 Sep 5 6:20 Jul 6, 5:43 Aug 6 6:01 Sep 6 6:20 Jul 7 5:44 Aug 7 6:02 Sep 7 6:21 Jul 8 5:44 Aug 8 6:03 Sep 3 6:22 Jul 9 5:45 Aug 9 6:03 Sep 9 6(22 Jul 10 5:45 Aug 10 6:04 Sep 10 6:23 Jul 11 5:46 Aug 11 6:05 Sep 11 6:23 Jul 12 5:4G Aug 12 6:05 Sep 12 6:24 Jul 13 5:47 Aug 13 6:06 Sep 13 6':25 Jul 14 5:47 Aug 14 6:06 Sep 14 6:25 Jul 15 5:48 Aug 15 6:07 Sep 15 6:26 6:26 Tul 16 5:48 Aug 16 6:08 Sep 16 6:j27 'ul 17 5:49 Aug 17 6:08 Sep 17 Jul 18 5:50 Aug 18 6:09 Sep 18 6:27 Jul 19 5:50 Aug 19 6:10 Sep 19 6:28 5'51 Aug 20 6:10 Sep 20 6:29 Jul 20 Jul 21 5:51 Aug 21 6:11 Sep 21 5:29 Jul 22 5:52 Aug 22 6:11 Sep 22 5:30 Jul 23 5:53 Aug 23 6 : 12 Sep 23 5:30 Jul 24 5:53 Aug 24 6:13 Sep 24 5:31 Jul 25 5:54 Aug 25 6:13 Sep 25 5:32 Jul 26 5:54 Aug 26 G:14 Sep 25 5:3; Jul 27 5:55 Aug 27 6:14 Sep 27 5:33 Jul 28 5:56 Aug 28 6:15 Sep 28 5:t3 Jul 29 5:56 Aug 29 6:16 Sep 29 5:34 Jul 30 5:57 Aug 30 6:16 Sep 30 5:35 Jul 31 5:58 Aug 31 6:17 4 S e 2 e Figure 4 3 ,7., ,,_mm-,-- .y_, m

F!'P-O-ENV-NR8 g DATE August 22, 1978 CENT 3tAL DAY LIGHT SAVINGS TIME SUNRISE YEAR OF 1978 DONTH OF OCTOBER HONTH OF NOVEMBER MONTE OF DECEMBER DATE TIME DATE TIME DATE TI2E Oct 1 6:35 Nov 1 5:57 Dec 1 6:23 Oct 2 6:36 Nov 2 5:58 Dec 2 6:23 Oct 3 6:36 . Nov 3 5:59 Dec 3 6:24 Oct 4 6:37 Nov 4 6:00 Dec 4 6:25 Oct 5 6:38 Nov 5. 6:00 Dec 5 6:26 Oct 6 6:38 Nov 6 6:01 Dec 6 6:27 Oct 7 6:39 Nov 7 6:02 Dec 7 6:27 Oct 8 6:40 Nov 8 6:03 Dec 8 6:28-Oct 9 6:40 Nov 9 6:04 Dec 9 6:29 Oct 10 6:41 Nov 10 6:05 Dec 10 6:30 Oct 11 6:42 Nov 11 6:05 Dec 11 6:30 Oct 12 6:42 Nov 12 6:06 Dec 12 6:31 Oct 13 6:.43 Nov 13 6:07 Dec 13 6:32 Oct 14 6:44 Nov 14 6:08 Dec 14 6:32 Oct 15 6:44 Nov 15 6:09 Dec 15 6:33 Oct 16 6:45 Nov 16 6:10 Dec 16 6:34 Oct 17 6:46 Nov 17 6:11 Dec 17 6:34 - Oct 13 6:47 Nov 18 6:11 Dec 18 6:35 Oct 19 6:47 Ncv 19 6:12 Dec 19 6:35 Oct 20 6:48 Nov 20 G:13 Dec 20 6:36 Oct 21 -6:49 Nov 21 6:14 Dec 21 6:36 l Oct 22 6:49 Nov 22 6:15 Dec 22 6:37 Oct 23 6:50 Nov 23 6:16 Dec 23 6:37 Oct 24 6:51 Nov 24 6:17 Dec 24 6:38 Out 25 6:52 Nov 25 6:18 Dec 25 6:38 Oct 26 6:52 Nov 26 6:18 Dec 26 6:39 Oct 27 6:53 Nov 27 6:19 Dec 27 6 : 39 -- Oct 28 6:54 Nov 28 6:20 Dec 28 6:39 Oct 29 6:55 Nov 29 6:21 Dec 29 6:40 (Central Standard Tir.e) Nov 30 6:22 Dec 30 6:40 Oct 30 5:56 Dec 31 6:40 Oct 31 5:56 e G e 9 TLgure 4 ~ 4

• r

FNP-O-ENV-NR8 e DATE August 22, 1978 CENTRAL STANDARC TIME SUNSET YEAR OF 1978 MONTH OF JANUARY MONTH OF FEBRUARY MONTH OF MARCH DATE TIME DATE TILE DATE TIME Jcn 1 4:50 Feb 1 5:17 Mar 1 5:40 Jan 2 4:51 Feb 2 5:18 Mar 2 5:41 Jan 3 4:52 .Feb 3 5:19 Mar 3 5:41 .Jcn 4 4:52 Feb 4 5:20 Mar 4 5:42 Jcn 5 4:53 Feb 5 5:20 Mar 5 5:43 Jan 6 4:54 Feb 6 5:21 Mar 6 5:44 Jcn 7 4:55 Feb 7 5:22 Mar 7 5:44 Jcn 8 4:56 Feb 8 5:23 Mar 8 5:45 Jcn 9 4:56 Feb 9 5:24 Mar 9 5:46 Jcn 10 4:57 Feb 10 5:25 Mar 10 5:46 Jan 11 4:58 Feb 11 5:26 Mar 11 5:47 Jan 12 4:59 Feb 12 5:26 Mar 12 5:48 Jan 13 5:00 Feb 13 5:27 Mar 13 5:48 Jan 14 5:01 Feb 14 5:28 Mar 14 5:49 Jan 15 5:02 Feb 15 5:29 Mar 15 5:50 Jan 16 5:02 Feb 16 5:30 Mar 16 5:50 Jan 17 5:03 Feb 17 5:31 Mar'17 5:51 Jan 18 5:04 Feb 18 5:31 Mar 18 5:52 Jcn 19 5:05 Feb JJ 5:32 Mar 19 5:52 20 5:06 Feb 20 5:33 Mar 20 5:53 Jm 21 5:07 Feb 21 5:34 Mar 21 5:54 Jan 22 5:03 Feb 22 5:35 Mar 22 5:55 Jan 23 5:09 Feb 23 5:35 Mar 23 5:55 Jen 24 5:10 Feb 24 5:36 Mar 24 5:56 Jan 25 5:11 Feb 25 5:37 Mar 25 5:56 Jan 26 5:11 Feb 26 5:38 Mar 26 5:57

Jcn 27 5:12 Feb 27 5:38 Mar 27 5:58

'Jan 28. 5:13 Feb 28 5:39 Mar 28 5:58 Jcn 29 5:14 Feb 29 Mar 29 5:59 Jan 30 5:15 Feb 30 Mar 30 6:00 Jan 31 5:16 Feb 31 Mar 31 6:00

• Source - Sunrise and sunset tables prepared by:

Nautical Almanac Office United States Observatory Washington, D. C. Figure 5 (1) 2 y.-

I FNP-0-ENV-NR8 DATE August 22, 1978 CENTRAL STANDARD TIME SUNSET YEAR OF 1978 MONTH OF APRIL MONTH OF MAY MONTH OF JUNE DATE TIME DATE TIME DATE TIME 'Apr 1 6:01 May 1 7:21 Jun 1 7:41' Apr 2 6:02 May 2 7:22 Jun 2 7:41 Apr 3 6:02 May 3 7:22 Jun 3 7:42 Apr 4 6:03 May 4 7:23 Jun 4 7:43 Apr 5 6:04 May 5 7:24 Jun 5 7:43 Apr 6 6:04 May 6 J:24 Jun 6 7:44 Apr 7 6:05 May 7 7:25 Jun 7 7:44 Apr 8 6:05 May 8 7:26 Jun 8 7:44 Apr 9 6:06 May 9 7:26 Jun 9 7:45 Apr 10 6:07 May 10 7:27 Jun 10 7:45 Apr 11 6:07 May 11 7:28 Jun 11 7:46 Apr 12 6:08 May 12 7:28 Jun 12 7:46 Apr 13 6:09 May 13 7:29 Jun 13 7:47 Apr 14 6:09 May 14 7:30 Jun 14 7:47 Apr 15 6:10 May 15 7:30 Jun 15 7:47 Apr 16 6:11 May 16 7:31 Jun 16 7:48 Apr 17 6:11 May 17 7:32 Jan 17 7:48 Apr 18 6:12 May 18 7:32 Jun 18 7:48 - 19 6:13 May 19 7:33 Jun 19 7:48 A, 20 6:13 May 20 7:34 Jun 20 7:49 Apr 21 6:14 May 21 7:34 Jun 21 7:49 Apr 22 6:15 May 22 7:35 Jun 22 7:49 Apr 23 6:15 May 23 7:36 Jun 23 7:49 (Daylight Savings 6:15 May 24 7:36 Jun 24 7:49 Tima) Apr 24 7:16 May 25 7:37 Jun 25 7:50 Apr 25 7:17 May 26 7:37 Jun 26 7:50 Apr 26 7:17 May 27 7:38 Jun 27 7:50 Apr 27 7:18 May 28 7:39 Jun 28 7:50 Apr 28 7:19 May 29 7:39 Jun 29 7:50 Apr 29 7:19 May 30 7:40 Jun 30 7:50 Apr 30 7:20 May 31 7:40 Jun 31 7:50 1 I Figure 5 (2) .m 7

FhP-0-ENV-NR8 om wa n CENTRAL DAY LIGHT SAVINGS TIME YEAR OF 1978 MONTH O? JULY MONTH OF AUGUST MONTH OF SEPTEMBER DATE TIME DATE TIME DATE TIME Jul 1 7:50 Aug 1 7:37 Sep 1 7:06 Jul 2 7:50 Aug 2 7:37 Sep 2 7:04 Jul 3 7:50 Aug 3 7:36 Sep 3 7:03 Jul 4 7:50 Aug 4 7:35 Sep 4 7:02 Jul 5 7:50 Aug 5 7:34 Sep 5 7:01 Jul 6 7:50 Aug 6 7:33 Sep 6 6:59 Jul 7 7:49 Aug, i:33 Sep 7 6:58 Jul 8 7:49 Aug 8 7:32 Sep 8 6:57 Jul 9 7:49 Aug 9 7:31 Sep 9 6:56 Jul 10 7:49 Aug 10 7:30 Sep 10 6:54 Jul 11 7:48 Aug 11 7:29 Sep 11 6:53 Jul 12 7:48 Aug 12 7:28 Sep 12 6:52 Jul 13 7:48 Aug 13 7:27 Sep 13 6:50 Jul 14 7:48 Aug 14 7:26 Sep 14 6:49 Jul 15 7:47 Aug 15 7:25 Sep 15 6:48 Jul 16 7:47 Aug 16 7:24 Sep 16 6:47 Jul 17 7:46 Aug 17 7:23 Sep 17 6:45 Jul 18 7:46 Aug 18 7:22., Sep 18 6:44 Jul 19 7:46 Aug 19 7:21 Sep 19 6:43 J"1 20 7:45 Aug 20 7:20 Sep 20 6:41 21 7:45 Aug 21 7:19 Sep 21 6:40 JuA 22 7:44 Aug 22 7:17 Sep 22 6:39 Jul 23 7:43 Aug 23 7:16 Sep 23 6:38 Jul 24 7:43 Aug 24 7:15 Sep 24 6:36 Jul 25 7:42 Aug 25 7:14 Sep 25 6:35 Jul 26 7:42 Aug 26 7:13 Sep 26 6:34 Jul 27 7:41 Aug 27 7:12 Sep 27 6:32 Jul 28 7:40 Aug 28 7:10 Sep 28 6:31 Jul 29 7:40 Aug 29 7:09 Sep 29 6.30 Jul 30 7:39 Aug 30 7:08 Sep 30 6:29 ,! Jul 31 7:38 Aug 31 7:07 Sep 31 6:29 l l l l l Figure 5 (3) l m-qp i

I ~ FNP-0-ENV-NR8 DATE Auoust ??. 1979 CENTRAL DAY LIGHT SAVINGS TIME ^ YEAR OF 1978 \\ MONTH OF OCTOBER MONTH OF NOVEMBER MONTH OF DECF.MBER DATE TIME DATE TIME DATE TIME Oct 1 6:27 Nov 1 4:53 Dec 1 4:39 Oct 2 6:26 Nov 2 4:53 Dec 2 4:39 Oct 3 6:25 Nov 3 4:52 Dec 3 4:39 Oct 4 6:24 Nov 4 4:51 Dec 4 4:39 Oct 5 6:22 Nov 5 4:50 Dec 5 4:39 4:49 Dec 6 4:39 Oct 6 6:21 Nov 6 Oct 7 6:20 Nov 7 4:49 Dec 7 4:39 Oct 8 6:19 Nov 8 4:48 Dec 8 4:39 Oct 9 6:17 Nov 9 4:47 Dec 9 4:39 l Oct 10 6:16 Nov 10 4:47 Dec 10 4:40 Oct 11 6:15 Nov 11 4:46 Dec 11 4:40 Oct 12 6:14 Nov 12 4:45 Dec 12 4:40 Oct 13 6:13 Nov 13 4:45 Dec 13 4:40 Oct 14 6:12 Nov 14 4:44 Dec 14 4:41 Oct 15 6:10 Nov 15 4:44 Dec 15 4:41 Oct 16 6:09 Nov 16 4:43 Dec 16 4:41 Oct 17 6:08 Nov 17 4:43 Dec 17 4:42 Oct 18 6:07 Nov 18 4:42 Dec 18 4:42 19 6:06 Nov 19 4:42 Dec 19 4:42 Os. 20 6:05 Nov 20 4:41 Dec 20 4:43 Oct 21 6:04 Nov 21 4:41 Dec 21 4:43 Oct 22 6:03 Nov 22 4:41 Dec 22 4:44 Oct 23 6:02 Nov 23 4:40 Dec 23 4:44 Oct 24 6:01 Nov 24 4:40 Dec 24 4:45 Oct 25 6:00 Nov 25 4:40 Dec 25 4:46 r 4'40 Dec 26 4:46 Cet 26 5:59 Nov 26 Oct 27 5:58 Nov 27 4:39 Dec 27 4:47 l Oct 28 5:57 Nov 28 4:39 Dec 28 4:47 Oct 29 5:56 Nov 29 4:39 Dec 29 4:48

(Central Standard Tima)

Oct 30 4:55 Nov 30 4:39 Dec 30 4:49 Oct 31 4:54 Nov 31 4:39 Dec 31 4:49 1 Figure 5 (4) a p . _. -.}}