ML20127N880

Environ Protection Plan Annual Operating Rept for 1984

ML20127N880
Person / Time
Site:	LaSalle
Issue date:	12/31/1984
From:	Diederich G COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8505230635
Download: ML20127N880 (25)

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l 3.1 Plant Design and Operation Changes in station design or operation, tests and experiments made j in accordance with subsection 3.1 which involve a potentially l significant unreviewed environmental issue.

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! 8505230635 841231

. PDR ADOCK 05000373 PDR i R t

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, DOCUMENT ID 0001h/0040A hb 1/th j

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j 4.2.1 veestative Inteerity on cooline Pond Dike l'

1 The vegetative integrity of the cooling pond dike was inspected in accordance with LaSalle County station procedure LTS-1000-5 on the following -

dates: April 27, 1984; May 31, 1984; June 31, 1944; July 29, 1984; August 30, 1984; september 29, 1984; and October 28, 1984. The above inspections j'

1 resulted in the following concerns:

l 1). The crown vetch, especially along the southern dike, does not grow

well during dry susmer months. The crown vetch is thick, along the l . dike and still provides adequate ground cover to prevent erosion.

! At the end of dry periods, the crown vetch comes back very well.

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2) A bare spot was noted by the Make-up discharge structure during the June inspection. This area re-seeded and the ground cover grew

back. 1

3) canadian This.tle, a noxious weed, was found growing along the cooling lake dikes. The canadian thistle was picked and begged, prior to seeding, by station personnel and no longer poses a  :

I problem.

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l DOCUMENT ID 0001h/0040A 9

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. l March 11, 1985 3

' 4.2.2. Monitorine of Poe and Ice Due to the Cooling pond )

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i The following is a susmary of the data for 1984 of the opera- l

! tional fog and rime ice observations in the vicinity of the cooling pond j including an analysis of the data and comparison to the 1983 and 1942 operating experience, and 1981 and 1980 baseline. This is in accordance t . with the Environmental Protection Plan Appendix B Section 4.2.2 which is

! part of the operating license for Lasalle county station Unit 1 and 2. i

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Included are: Attachment 1, which includes all reported inci- ,

donces of fog which restricted visibility to 1/4 miles or less and rime ice

] observed on station property in 1984; Attachment 2, which consists of copies i of the four quarterly summaries of fog and time ice observations for 1944; I Attachment 3, which includes the annual stasaaries of observations for the l .: years 1980 through 1983; Attachment 4, which is the correlation of Rime Ice '

j observations on vegetation for the winter of 1983-4; and Attachment 5, the i i report of the." Inspection for Environmental Impact of Rime Icing, which was 1 conducted by a consulting plant pathologist in May, 1944 to assess the j effects of the rime ice that formed on vegetation during the winter of P 1943-1944.  ;

In susmary, there were seven days out of the 249 observation days during 1944 where visibility was restricted to less than 1/4 mile. There

( were no observations of ice build-up occurring off the station property.

There were, however, ten cases of on-site rime ice reported during the year.

Analysis of the seven off-site 1944 occurrences of reduced visi-bility shows that there were no observations of reduced visibility that may f have been enhanced by the pond.

I on site, during the cold weather, dense steam fog occurred in the area of the condensing cooling water discharge, reducing the visibility

along the drivewey to the main gate and over part of the parking lot. This is a localized effect, entirely on-site, not involving any of the observa-tion points on the public roads around the perimeter of the site, and has y not been consistently reported in the monitoring program.

h All ten 1984 rime ice observations were in the same localized area near the circulating water discharge. Rime ice was observed on vegetation and on vertical surfaces. There were no off-site observations of time ice in 1984. Rime ice formed on the vegetation, guard rails, fences and automobiles in the parking lot and during the extremely cold weather the ice persisted.

As with the steam fog in the same Area, this effect has occurred entirely on-site, not involving any of the observation points on the public roads

around the perimeter of the site and, therefore, has not been reported on a regular basis in the monitoring program. An " Inspection for Environmental Impact of Rime Icing" will be made during the 1945 spring growing season of the on-site areas which were subject to the rise ice occurrences.

Analysis shows that the 1984 data had two more observations of i fog causing reduced visibilities than in 1983 but fewer than in previous ,

j years 1982, 1981, and 1980. As shown below, there were seven observations l in 1984, five in 1983, 12 in 1982, 11 in 1981 and 10 in 1980, i

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< Total observations, visibility Less j

i. Visibility Less Than 1/4 Mile '

Iggt ha 1/4 Mile Downwind only ,

( 1944 7 0  ;

1983 5 1 1982 12 0 1981 11 1 1980 10 0 It is apparent that there was little or no enhancement of off-site fog conditions that could be attributed to the heat rejected to the cooling pond. There have been only two times in the five years of observations that a visibility reduction under a 1/4 mile occurred downwind of the pond without any similar upwind or cross wind fog observations.

All the rise ice observations in'1984, 1943 and 1982 were local-ised to the same area where the entrance road crosses the cooling water dis-charge canal. In the pre-operational period there were two observations which occurred during a period of extremely cold weather in January, 1982, which was before fuel loading. There was one observation in 1981 in late ,

December under conditions which combined very cold air temperatures and an t area wide light fog which resulted in a natural rise ice formation off site but was apparently not influenced by the cooling pond.

There were four incidences of time ice reported in 1983, and more were expected in 1944 with both units operating. This has proved to be true and during the prolonged period of cold weather, the ice has persisted and  ;

built up. l An inspection for " Environmental Impact of Rime Icing" was con-  !

ducted by a consulting plant pathologist, Dr. Barry J. Jacobsen on May 14, 1944. The vegetation in the affected area was inspected and found not.to i have suffered any observable effects from the rise icing that occurred  :

during the winter of 1983-84. Attachment 5 is a copy of the report of the '

inspection.

As a result of the occurences of steam fog and rise ice along the on site access road corrective action is being planned. Under consideration is a proposal to reroute the channel carrying the condensor cooling water discharge and to cover it for part of the way to increase the distance between the point where the steam fog is formed and the access road. The rerouting of the channel would be across an on site area which has been previously disturbed by construction. Any action taken on this matter will be evaluated and recorded as specified in section 3.1 of the EFF.

The esperience through 1984 of proeperational, 1 unit operation and, in 1944, of 2 unit operation has demonstrated that operation of the j station and the cooling pond has not been a major contributor to the '

frequency, extent or density of fog in the observation areas along the 6 public roads surrounding the station nor has operation caused any off-site incidences of time ice formation. Section 6.2.1 of the LSCNPp Final

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l Environmental statement requires the monito-ing program to continue through.

at least one 12 month period of reasonably complete two-unit operation. In keeping with this requirement the 1984 power production history for Units 1 and 2 was as follows: '

t 1984 Power History for LaSalle Gross Pur (Itihrs.) Capacity Factor = Gross PIE 1130 x hours in month i

Unit 1 Unit 2 Jan.

Gross Pwr. -

347662 -

0 i Cap. Factor -

41.3% -

0 Feb.

Gross Pwr. -

229288 -

0 Cap. Factor -

29.1% -

0 Mar.

Gross Pwr. -

182356 -

0 Cap. Factor -

21.6% -

0 Apr.

Gross Pwr. -

692699 - 16683 Cap. Factor -

17.3% -

2%

May ,

Gross Pwr. -

771907 - 110201 l

Cap. Factor -

92.5% -

13.1%

Jun.

Gross pwr. -

543251 - 249632 Cap. Factor -

71.6% -

29.6%

Jul.

Gross Pwr. -

156661 - 400934 l

Cap. Factor -

90% -

47.6%

Aug.

Gross Pwr. -

713445 - 137874 Cap. Factor -

44.8% -

16.3%

sep.

l Gross Pwr. -

456560 - 502128 Cap. Factor -

56.1% -

61.7%

Oct.

Gross Pwr. -

0 -

723745

Cap. Factor -

0 -

86%

! Nov.

Gross Pwr. -

66600 -

628250 Cap. Factor -

8.1% -

77.2%

Dec.

l Gross Pwr. -

664254 -

586372 Cap. Factor -

79% -

69.7%

l Based on this experience the applicant proposes to terminate the off-site fog and time ice monitoring program at the end of May, 1985.

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ATTACIBIBIT 1- ,

Paga 1 cf 2 -

i-Fog and time Ice Maettering Program Summary {

LaSalle County Generatina Station .

. Incidence of Fog / Rime Ice Formation 1984 1

& Days of Observations Fog /aias Ice Visibility la Feet (lees than .

abservations Utad '1/4 mile) at Observation Pointe  ;

ante Time Direction 1 2 3 4 5 6 7 8 9 Romerks Rime Ice (t") along .

1/10 7:30a 360*

• shore. near discharme -

Rime Ice (trace) alor g

• 1/11 7:30a 60* shore. near discharma Rime Ice (3/48) on bt shes .

1/17 6 r Ma 210* and fance near dine u nge .

Rime Ice (3/4") on % shes .

1/1o 7,1n. pm* and fanens naar dimet arge and on cars in parkir g '

int _

Rime Ice U/4") on Du shes j 1/20 7:OOa 294* and fences near disch arge i and on cars in parkir g 4 lot. -

..- Rime Ice (t") on Jege ta-1/M1 7 9na pin

• tnon & annedrail near l . d;.scharge. ,

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• Fog over general area ,

9/1 7 :10a 213* 1300 1000 1000 1000 1000e 1000* 1000* 1000 1000 Rime Ice fla) on olan ts *

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guardrails and fences near discharre. -

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Rime Ice (t") on bust eis -

2/6 7:15a 300* .

and fences near disch arge and on cars in parkir g '.

l + lot.

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• o Demetee, Fog Formaties Doumwind of Cooling Pood Obs.Pt. Dir. Seen . Obs.Pt. Dir. Spas - Obs.Pt. Dir. Spea ,

1- - 3058- 828 4 -- - 90*>141'8 7 1978 -3398 '

2 278- 858 5 90 -2408 8 2788 -351*

3- 658-112* '6~ 1888-262* 9 286*- 67* -

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ATTACIBIEllT 1 '

Page 2 cf 2 -

i Fog and time Ice Monitoring Program Summary ,

j Lese 11e County Generatina Stetten .a

. Incidence of Fog / Rime Ice Formation  !

1984 Rftg ,Doye of Observettees ,

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l l yog/ mite Ice Vietbility in Feet (less then . ,

obseripettees Wied '1/4 mile) et Observetten Feints .

Date Time Directies 1 2 3 4 5 6 7 8 9 Bemerke Rise Ice (t*) on bush fa, . ,

i 2/7 7:15e 315*

muerdrail anA fence E Der

• l discharge and on cars i

in narkins lot.

! Heavy fog over sps* onn son pone 2ntw -pon 200 nanarm1 aram.

J 9/1n a,ntu 9nn 200 2nne

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Heavy fog over .

i/1s 4r05n 185* 250 250 250 250 250* 250 250 250 250 nanaral area.

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l o /on 6r30m 110* 500* 500, 500 For 4

. General overcase, in/o 7,nn. one 1000 1000 1000* 1000* 1000* 1000 1000 1000 1000 mist and for General overcast, 10/10 720nm 64* 700 700m 700 700 700 700 700 700 700 mist and for -

Rime Ice (1/168) on 11/12 7:OOa 315* wonatatlon in aram

- from discharge to,

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19/in 7enna Mise 100* 100 100 100 100 200 200* 200* 100* Fog. Eeneral area. -

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! O Beestes Fog Formation Bouuwind of Cas11ag Pond dhe.Pt. Dir. Spea . Obs.Pt. Dir. Spen - Obs.Pt. Dir. Spea ,

8 1- - 3058- a2* 4 ----96161* 7 197 -3398 *

-l 2 278- 458 5 908-240* 8 2788 -351* .  !

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pee med laSalle rses les semesgeressen Geesty Sea Station Summary ,

lesnam og yes/Bime Ice resentSee First Snarter.198}.

62 anye of ebeerwettees pag /asme go. Tieth&1&sy to Feet (1ees shee ,

_ rises Wied .~1/4 mile) at ebeervottee Poisto - -

ante t"-- atreetten 1 2 3 4 5 6 7 8 9 Seeerks

~ Pog over general aswa. No .

1/b3 7:30a 207* visibility restriotice. -

Rime Zee (t") along shone,

• 1/10 7:30e 360* maar discharge.

time lee (traoe) along .

1/11 7:30a 60* ehose acar discharge. .

name Ice (3/4") on taashes .

1/17 6:55e 210* ad feese near d:.scharms. ,

. or ,.ed e . ~ r 1/19 7:10e 230' Eoe (3/4") on haham and

• fences near discharge and on ears in parking lot.

- Pog over pond only. Rima 1/20 72nn. 29s;* Ice (3/4") on h = ham und -

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fences near ' discharge. and nn am In n=>4r4 =, iny

- Ries Ice (IA") on vegeta. .

1/H 7:20a 210" tatian ==d mi>=wl v=41 ===i .

• discharge.

ral area.

2A1 7 -1 r*= 2r4* 1100' innO *1nnn innn 1000e Innne locoe innn innn Poga over Ria Ice (1p/2") on =1=nts.

. 1 gua 11 rails and fence

== dim,hm .

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Risas Ice (1/2") on bushes

• 2A)6 7:185a 300 ~

=nd fanae near dischmena O gemoges. Pee Pesmetten Boometed of Coelieg Pond .-

the.Pt. Bir. Seen ths.Pt. ' Dir. Seen ' the.Pt. Dir. Seen .

1- -

3ess- a2* 4 -- - ten 141' 7 197*-339* -

2 27*- as* ~5 se*-240* a 27s*-351'_ .

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(See Map se Reveres Side) .

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ATTACIB W T 2 -

ie Fag med Rise les tenettering Progree Suseery  % 2 cf 4 j laSalle Cemety Generaties Stettes -

- lecidenes of Fog /sime Ice Feemetten b.* (kirter,19st -

62 .e ,e e , - t -

Pes /mine Ice Vieth111ty la Feet (lees then ,

mm *- a t"--

Utad mirecties 1 2 3 1/4 mile) at ebeervetten Potete 4

4 5 6 7 8 9 Seestka Ries Ice (1/2") ce Innehee.

2NT 7

lSe 315* -

amant rail and tense near -:

+4=ah==ge and os care in .

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markins lot.

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2As 61 sin. 16s* Poe - = a=1 w. .

58avF 705 over M 2Ao 4mnon 22s* h 200 200 200 Sane m 200* 200 200 arma- ,

rog e.e,asse,e1 , -  :

2A7 7x 4Do 293* ris1M14tr restrie+4 .

Pog over senoral area, no why si nno 2af -

,4 4 w ii t, -tra m +4 _

- $savy Fog over general TAs 4rosn las* 28so 28i0 28so 28i0 28 ion 290 2'so 28io 28io arem_ -

saavy fog over pond, ligh1 .

yhn 6 sina 195a ro.1 over ==nmeni avem_ no

- risibility reetrietiene.

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Se.Pt. Dir. Seen .ths.Ft. ' Sir. Seee - the.Pt. Dir. Seen .,,

. 1- - 3e58- s2* 4~ - - 9eN141' 7 197*-339*

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2 27*- ase 5 9e*-24e* a 27s*-351'

'. 3- 63*-112* '6- 1se*-262* 9 2a6*- 67*

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- ANAQSElfT 2 i Fag and aime Zee somettering Program Sommary 3 Cf 4 '. , l, l* .

Leselle Ceesty Generaiten stettes -

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Inc edenen of yeg/stne Zee poemetgen .

mied thearter.1901 l[

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Fog /R$1me Ice Vielbility in Foot (less thea . . j hhh Wind 1/4 mile) et Obserweten Potete  ;;

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Direction 1 2 5 4 5 6 7 5 9 Bemorte ;j pas. me viettility 7-30 7:00s all' r= amu - - -

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Pts, as viettility 1 1 8-w 7

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r. _ a^e-- jj pas, as viesmauty i 8-17 7 cos eM* == aw - -

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pts, me visit 111ty 9 24 7m 180* r_ we -- - 3 pts, me viestslity

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I l, h .Pt. Dir. Some . the.Pt. ' Sir. Seen Obs.Pt. Dir. Sees e 1- -

3e98- 32' 4 --- - - 9a8-141* 7 1978 -3398 -l 2 27*- a38 5 9e*-240* a 27a*-351' .

3- 638-112* '6~ 188*-262*

9 206*- 67*

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TTACISEElfT 2 I -

Page 4 of 4 .

. . Fes and time Ice Meetterlag Program Sammary -

- laSalle Cemety Gemorettaa Staties

- - 1eeldenee of res/asse Iee reemetten .

Fearth . Omerter,1983

?

62 anye of shenevettees ,

t pag /mame Ice Vieth111ty to Feet (lees thee .

^

',j mm Bote T"-

Wied Bireetime 1 2 3 1/4 mile) et Observetten Potete 4 5 6 7 8 9 Besoste

I:

General overcast, mist 10-9 7:nn- 90* inna* inan innne innne innne innn innn innn innn " fan '

Ceneral overcast, ~ -

10-10 7 OOe 64* 790 700* 700 700 700 700 700 700 700 mint ==d fan Fog, no visibility 10 11 7:00m M* rc h:etta== ,

Fog, no visibility in es v.nn. 12== r_ w:ae---

rog, no vis1 Dusty en = 7:nn= se -

- _ -le+t _ .

Rime ice, 1/16' on i' 11 19 7,nn. use -

__ _ ten. e c.= a e m

_ g; j.y past main gate 'l, l

12-1C 7: nth 315* Inne inn inn inn inn snn snne snne inne pan. --r1ud 12 11 7:nn. 1Kse

. Fog; no visibility, ,j

. _ _ . .u

. __yRo sibility l 19 11 7 nna Sine _

1g 11 a ,nn., u2e .

I  ; .' Fogs =.+ia-. y no visibility . - - .

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. Fog, no- visibility 19 14 7 nn. . _,_ . . +e -_-__-

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19 91 vinn. - 2n.

I i Fogy .e+1

_no -visibility

~

O toestes, Pas Essenties w ad of Coelies Pond , ,

she.Pt. air, seen . abe.Pt.

• str. seen - she.Pt. air. essa 1-- 3.se- .e . - . . ,e-a.e eme , - 1,,e_33,e .!

= no- se 3 . u,-me ~

3- 638-1128 '6~ 18s*-262* 9 206*- 6f -

(see ump es neeerse esde) -

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__ __. _. _ _ . . _ . _ - - - - , - - _ _ _ _ _ _ _ - - . _ _ . _ , _ _ _ _ , _ -,_m - - ._____ ,_ -

.- - - .- - - - ~. -- -- - -. _.-. -~ - ..-- - . - - -

em3 Fag and time Ice Manitoring Program Senaery Page 1 cf 5 laselle couacy Generaties Station .

.J Incidence of Fog / Rime Ice Formetten 1983 249_ Days of Observatione

~

t.

Pes / Rime Ise Visibility in Poet (lees then ehservattene Wind 1/4 mile) et M r ression Pelete Bate T*- Strecties 1 2 3 4 5 6 7 8 9 ~

Bemerke ,

General light fogg low .l 2/15 7:30 a 141* 400* visibility area -- -"t 1 mile east of Point 4.

• 8 Rime toe (1/5") meer .

3/22 7:25 a 234 paMh= .**

time ice (1/5") maar .

3/23 7:20 a 325 suardhouse.*e .

4/b6 7:00 a 125 400 400 400 400 400 400 400* 400* 400* Pos. ,

6/28 7:15 e o' 500 400 Soo 600 600 usavr fos ever mond. -

Heavy fog over pond. -'

11/17 7:20 a 315* 400* 500 400 300 -

Could not see station 12/bs; 7:00 a 250' 400 400 200 200 200 200* 200* 400 400 11ahte from Pointe 2. 3.

4, or 5 Rime ice (1/4") om head-12/10 7:30 a 333' rails and vegetaties meer -

eirculating water dio-

'  ? sharge.e*

Rime ice (trase) on guare -

'(

12/23 7rda 260* f rail and plaats near sir-sulattag unter discharge.i

• O Benetes Fog Formaties Boumwind of Coeling Pond me.Pt. Bir. Spea Obs.Pt. 'Dir. Spaa Obe.Pt. Dir. Spea *eRime ice on station site only. .

3058- 82* 4 - 908-161 8 7 197*-339e 88P m n m side for 1 1*** "*'

2 2 P- 858 5 90*-2408 8 2788 -351*

3 658-112* 6~ 1888-262* 9 286*- 678 (See Ney on Reverse Side) .

I

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Fog and asme Ice unattarlag Program SemmmerY At+ademaat 3 -

tasalle Canasty Ceneratina Station page 2 of $

Incidence of Fe6/alme Ice Formation 1982 249 mays et observattoes i

Pos/ tion Ice Vielbtitty la Feet (lees them -

- -:-riese Wied 1/4 mile) et Gbeervettee Pelete i tote Taas Direction 1 2 3 4 5 6 7 8 s Bemerke 1-14 7:12a 257' g RinegeeJ116*)neer 1-26 6:59e 279*

fi"*M*ddl8$$ y,g.,. ~

2-02 7:03e 125*~ 50 50 75* 50* 50* 50 50 50 50 2-19 4:10s 261* 1000 -

3-12 7:15e 145* 800* 800* a00 -

6-29 7:15e 282* 200 200 200 200 400 600* 200* .

\

8-23 7:25e 18' 500* 500* 200 200 250 250 250 500 500*

9-01 8:00e 171* 900* 800* 400 Fog rain 9-02 7:30m 279* 300 200 100 150 150 500 300* 200* 200 i

9-08 7:30s 90* 900 900 400* 400* 400 400 400 400 900 Light fog-mist .

9-09 7:10e 180* 1000 '

300 9-27 7:00e 59* 200* 100* 100* 100 100 200 200 200 200* H**U fl *V*r 10:08 7:00e 20* Fog dansity 200-40) feet in all directions

~

o Boneses Fog Peruntsee Bouewted of Coo!!as Pond abe.Pt. Sir. Sese Obs.Pt. Str. Seen Obe.Pt. Bir. Spee **Rine ice on station site only:

1 3898- 82* 4 908-161* 7 Is7*-339e see page 2 of At h t 2 for .

2 27*- as* 5 so*-24a* a 27s*-35te location.

- 3 63*-112" 6 las.-262* 9 2e6*- 67*

(see ump en aseeces side)

~

Fog and Ries Ice gamesterleg Progree hry Lese 11e Causay seeeraeles seatles AN) '

N 3 #f 5 Incidence of Fes/ Rime Ice Feemettee f 1982 _

)

24) Beye of ebeerwetimes pag / mime les Vieth118ty to Feet (Lees them hm Mied 1/4 elle) et ChHties Pelete -

'- r- -ame- 1 2 3 4 5 6 7 8 9 assock.

11:30 7:20s 135* 800 800 800 800* 80t> 800* 800 800 800 Fog over entire aree i

o amaeses Peg Pesmeties Beuested of Ces!!ag Feed b .Pt. Dir Sese the .Pt . Bar. Spee et.s.Pt. Bir. Span 1 3838- 828 4 908-161* 7 197*-3398 988-240*

2 278- 898 5 8 278*-351*

3 638-112" 6 1888-262* 9 286*- 67*

(See IImp en Beveres Side)

Attacheemt 3 -

Fog and time Ica Manitoring Program Summary Fase 4 or 5 -

LaSalle County Camerating Station ,.

Incidence of Fog /Eine Ice Formation

~

248 Days of Observations During 1981 Fog / Rime Ice Visibility in Feet (loca than observations Utad 1/4 mile) at Observation Points

'Date Time Direction . I 2 3 4 5 6 7 8 9 Ramerks

~

2-17 7:00p 205 For Derstev 400-600 feet in all ditse t inn a 2-18 7 :15e 220* 1200 3200 800 800 600* 800* 1000* 1100 500 Foe over antire aram

• 2-27 7:15s 126* Ic e nu-r -11 m r -m = .

4-30 7:15e 135" 1000 800 1000* 1000 a00 mm in _ ar # 1.

8-21 7:12a 72 1200* 1000* Foe 9-14 7:05a 280 200 200 225 250 250 250 250* 250* 250 Foe 10-05 7:05a 90* 600 600 600* 60n* 600 600 800 600 600

• 1 0-08 7:08a 10* 350* 350* 150 400 200 150 200 250 300*

10-15 6:45a 235" 1200 1200 1000 1000 800* 600* 800 1200 1200 Heuvv for over eatire area

• 10-16 6:45a 230* 1200 1200 1200 1200 1000* 800* 1000 1200 1200 Foe over ent tre area 11-04 7:12a 99* 800 600 500 400* 400* 400 600 600 800 i

11-16 7:05a 250" 800 800 800 600 600* 600* 800 800 800 12-29 Rime ice at Stations 3-9; '.

7:00m 275

< 1" <1" < 1" < 1" < 1" < 1" < 1" Linht for over area  !

o Denotes Fog Formatica Downwind of Cooling Pond  ;

Obs.Ft. Dir. Span . Obs.Pt. Dir. Span Obs.Pt. Dir. Span 1 3050- 820 4 900-1618 7 197*-339*  !

2 270- 850 5 900-2400 8 278*-351* C 3 650-112* 6 1880-262 8 9 286*- 67*

(See Map on Reverse Side)

• i

A 3 .

Fog and Rime Ice Monitoring Program Summary laSalle County Generating Station .

Incidence of Fog / Rime Ice Fonnation Ikaring 1980 249 Days of Observations Fog / Rime Ice Visibility la Feet (less than Observations Wind 1/4 mile) at Observation Points Date Time Direction 1 2 3 4 5 6 7 8 9 Remarks 1-16 4 00F 171* 200* 1300 1300 1300 Pond fresen 2-20 5:30A 234' 500 500 200* 500 500 500 Pons golf frozen 2-21 5:30A 90* 500 1000 1000* 1000 1000 Pond 9036 frusen 5-19 7:00A 31* 200* 200* 200 200 200 300 300 300 250*

8-11 7:20A 240* 1400 1400 1400 1000 1000* 1000 700* 800 800 Y,1 #nl '

8-18 7:07A 332* 800* 700 650 800 700 650 700* 750 700 Fog in entire area 8-28 7:06A ** 600 800 800 800 600 600 600 800 800 9-05 7:15A 71* 1300 700 700 750 12-01 4:30F 72* 800 800 800 800 800 Raining 12-31 7:00A 315* 1000 1000 1000 1000 1000 1000 1000 1000 1000* .

O Demotes Fog Formation Downwind of Cooling Fond ** Wind directica indicator not working Obs.Ft. Dir. Spaa Obs.Ft. Dir. Span Obs.Ft. Dir. Span 1 3050- 828 4 900-1610 7 1978 -3390 -

2 270- 850 5 90*-2400 8 278*-351*

• 3 650-112' 6 1880-262* 9 286*- 67* *

(See Map on Reverse Side)

7 7 . --

a ATTACHMENT 4 I

.I Dry h1h haar 1

bate Thur Air Te m 8F, The. T W% h lacatim l 12/19/83 7:30s -17 31 1A" . Garpasser New circulath f teter dascherse ,

, 12/23/83 7:30s -E 31 These Garymtar Naar ciraalath

. ungar dischuss 01/10/E 7:30s 8 M 1/4" Carpensar Naar circulath inter h h= y 01/11/E 7:30s 0 68 1hne Carpensar Naar circulating teter discheran 01/17/E 6:55a -3 36 1/2-3/4" An w Maar cira'!MS -

totar discherse ad parklag lot 01/19/E [:10s -M 33 V2-3/4" Andres Naar circulating tocar discherse ad park % lot 01/20/E 7:00n -15 35 U2-3/4" hulram Maar circulat%

wear discharge ad parkiss 1st 01/31/E 7:20s 6 M 1/4" Carpenter En=c ciaculath 4

tacar discherse

,' 02/01/E 7:10s 13 M 1/2" Caspantar Naar cisa 1Me -

inter discherse 02/06/E 7:15m -1 E 1/2" hulree Nase circulatias inter discherse

.4 park h ist 02/07/E 7:15s -2 E 1/2" Andres Naar circulatlas teter discharge ad parkirs 1st 47BE ES:pp f

a..ms--m-.e_s-.- ,w- - ------ - - - -

. . 1 .

ATTACBENT 5

, Page 1 cf 2 i-

• RESULTS OF MAY 1984 SURVE! 0F AREA INVOLVED IN REPORTED RIIS ICE DEPOSITION AT THE LASAL12 GENERATING STATION Barry J. Jacobsen, Ph.D.

l The area where rise ice was reported on - 19 and 23,1983. January 10,11,17,19, 20, and 31,1984, and February 1, 5, T,1984 una surveyed for I, possible effects on vegetation la accordance with section 4.2.2 (d) of the -

LaSalle County Station Environmental protecties plan. Similar planta in j adjacent troas where no ice was reported were used for comparison purposes.

i Areas where rise ice was reported were identified by Mr. Carrol Carpenter i one of the trained observers who made the ice and fog reports. No identified' i

j that the area where rise icing oeourred was betuosa the otroulating water

'! r discharge and the parking lot to the north. Woody plants grouing in this area i

,;; and in adjacent areas which were unaff ected by rise foe included, willow, .

autumn olive Siberean ela, and cottonwood. Onamon olover~was a porrenial

.i!

'l herbaceous plant common to both areas.

Tip dieback of willow, cottonwood, Sibereas ela, and autumn olive was observed in areas where rise icing was reported and in adjacent areas where t

icing was not reported. There was slightly som tip dieback in willow in the area of reported rise icing than in non-ioed adjaoest areas. Cosmos elever stands and plant health were similar in both areas.

Tip dieback and death of auten olive was judged to be due to transplant failure associated with the dry conditions of the 1983 smwing season and j - harsh winter of 1983 84. Tip dieback of willow ace eettonwood is judged to be due to the dro6pty conditions of the 1983 3rewing season and the severe oold. i I

- of 1983 84 winter. Similar diebook was observed la erabapple, multiflors rose, 31berean ela and dogwood in areas where rise teing was not reported.

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B .

h ATTACHMENT 5 N - Page 2 of 2 The observed slight increase in tip dieback in areas where rise.deing was . ....-. -

i reported was likely due,not to icing effects,but to a delay in plant hardening I

due to warning from the adjaoont discharge water. Plant tissue not adequately l oold hardened will usually winter kilh 'this is particularly true for species

}

such as willow. It is my judgement thib icing was not involved since the ice was reportedly gone by noon each day it was tiported. Also there was no

,. ~ v f.

evideneg of mechanical damage associated with ice lords.

!; s. -

It is my opinion that rise loing rwported during th,e wir.teg.of.1983-84 had nts observe ble effect on vegetation. ,

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. 5.4.2 Nonroutine Reports I

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ATTAQUEDIT 6 I Summary of NPDES noncompliances for 1984. These have been previously

. reported to the NItc at the time the report was submitted to the State of Illinois. These are not EPP noncompliances.

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LASALLE COUNTY STATION -

NPDES NON-COMPLIANCES 1984 DVR NUMBER DATE NON-COMPLIANCE CORRECTIVE ACTION _

l-1-84-003 OlJAN84 Sanitary Treatment Plant effluent. Sample will be collected Ja an alternate No sample and analysis. sample point when chlorin = tor pit is frozen.

1-1-84-98 06 MAR 84 Wastewater Treatment Facility clearwell was reprocessed. Work requests were effluent total suspended solids. written to repair alum anjection pumps and ,

damaged tank level probes on polymer injection skid.

1-1-84-134 30MAY84 Wastewater Treatment Facility pH. The discharge was stopped. The clearwell was reprocessed. Discharge was recommenced when the clearwell and equalization tank pH again met specifications.

1-1-84-196 30JUN84 Cooling pond blowdown total suspended None taken.

solids.

1-1-84-178 18JUL84 Sewage Treatment Plant effluent Chlorinator tablet misfeed was corrected.

fecal coliform. Work request SL39127 was written to place metal cover over feeder. Operating personnel in-structed to verify proper feeder operation.

1-1-84-201 IIAUG84 Wastewater Treatment Facility None taken. Subsequent clearwell and effluent effluent total iron. ,

samples showed total iron less than 1.0 mg/l limit.

1-1-84-209 12SEP84 Wastewater Treatment Facility The discharge was stopped. The clearwell was effluent pH. circulated back to the equalization tank and neutralized.

1-1-84-221 13AUG84 Wastewater Treatment Facility No corrective action taken.

effluent manganese.

DOCUMENT 0103h

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Cominonwealth Edison LaS:lla County Nuclear St: tion G RuralRoute #1, Box 220 Marseilles, Illinois 61341 Telephone 815/357-6761

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j March 27, 1985  !

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Mr. James G. Keppler j Regional Administrator i Region III I U.S. Nuclear Regulatory Commission 199 Roosevelt Road Glen Ellyn, IL 6013"l j l

Subject:

EPP Annual Operating Report i Appendix B to Facility License No. NPF-ll and No. NPF-18

Dear Mr. Keppler:

1

! Attached is the Annual operating Report for the year of 1984 for the Environmental Protection Plan as required by Section 5.4 of Appendix B to N if4ty License No. NPF-ll and No. NPF-18.

This report is contained in the following subsections:

3.1 Plant Design and Operation.

4.2.1 Vegetative Integrity on Cooling Pond Dike. I t

4.2.2 Monitoring of Fog and Ice Due to the Cooling Pond.

5.4.1 EPP Non-Compliance and Corrective Action Taken to Remedy Them.

5.4.2 Non-Routine Reports.

Section 3.2 of Appendix B requires submittal to the NRC of NPDES noncompliance reports which are required by the State of Illinois. These reports were previously submitted to the NRC at the time submittal was made to the state.

Included as Attachment 6 of this Annual operating Report is a summary of the NPDES noncompliances for 1984.

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194J . _._.e..- 'At4q DOCUMENT ID 0134h 3 93 $Y Ihip shh37Y I

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In accordance with Regulatory Guide 10.1, one copy of this report is provided for your use and 18 copies are being submitted directly to the Document Control Desk, U.S. Nuclear Regulatory Coeusission, Washington, D.C., 20555.

I j_ Sincerely yours,

G J. Diederich Station Manager l LaSalle County Station -

I-GJD/FRL/jdp

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t i Attach.

xc: J. M. Marshall, W/ attach.

, NRC Resident Inspector, w/ attach.

Environmental Affairs, w/ attach.

Document Control Desk (18 copies) l-4 S

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I DOCUMENT ID 0134h