ML16314D316

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Comment Sheets
ML16314D316
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 11/09/2016
From:
Pacific Gas & Electric Co
To:
Office of Nuclear Reactor Regulation
References
Download: ML16314D316 (52)
v • d • e


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CON4EI'iT SHEET

.12/5 72: Road is outslo ed with water checks to undisturbed soil. Vegetation is resent but not abundant tiznulate rovth and seed ermination.

4/5/73 Road was inslo ed rior to winter rains. Fi s o e pro ec e rom road draina e water b insi e itc . Ha or washin was cause y reci itation on fill slopes. Recommence~nor inc u es:

p rol er wit straw w ere ossible . 2 seed a rea wit 20 lbs. wild or Red Oats, 1 lb. Tree Lu ine 10 lbs. Perennial R e rass 10 lbs. B]and~Brome and 2 lbs. Coastal Sa e er acre 3 fertilizer with 11-8-4 at 240 lbs./acre.

10/16 73 Recommen ations ave een comp e e excep or ~ e s eep ao ro ing of straw. S eep oot ro ing was no prac ica aue o ne s eep, irre ular terrain.

etative cover. is mprovemen is ue 4 30 74 be Add,~di Photo shows im rove carried out due ve f 'I 5?3. C ti 0 b to the extent of the conditfcms in t is area.

i h 1d AV I'ROV I'.D DfAIII.O CAi~IYOi'I TI<A'AJlffSSIOi'I SUI(VLBYS s

1't 500 YiV ACGI'.SS I(OAD SUI(VIY 1

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NUlllll;R .~0'1011'EREliRNCE - 2 0 0 DATI'.

PIIOTOI OINT, PIIOTOPOINT DOCUHI'.L'IThTTON:

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'LANDMARK Tow r 92 DISTANCE~75 DIRECTION COI~kfENTS

', COf4/EHT SHEET 12/5/72 Hydroseeding has not been'successful due to Zaak of precipitation and rock soil conditions. No visible erosion rablems on fill slope, however the cut bank is slou hin onto the mead bed.

.' 5 73 Ho si nificant changes in Vegetatson In so>3 stabilization.

cated oor t . Area to be left for soil condt&~ons for reestab ls natural reaeneration.

1ng No noticeable chan e area is rather stable.* and no further recom-

.. mendation will be made. Area will be obsereed however durin the next re ort eriod.-

0 74 - - Ve etatson on fil slo es as remained stabs Area is relatively unchan ed and no'fIIrt hi'P l(oVI'.D DIhIII,O CANYON TI<AHStfI:SSION SURVI'.YS

',ro:o ror IIAI I;I:.r:t:.I:I;tlrr; 0 6  ;)rVI.I:,,

h' 'I'l()'I.'()t'OQIT ' Sltt:.tH'Hu.

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t.hi'll) afhRK or sin:rcn~ D 7 t(LC't'Oif COl I~f I': tlt'S e

e COHt1Et(T SHEET 12/5/72: Cu1vert and drainage is clear and no prob1ems are evident.

notos as condition'has stabilized.

.4 5 73 - Minor washin of a ortion o e i s o e Koslo e road ears end o existi~nc61 veia. Continrro obser'vations

- --- -- - through~

o c an e in con i ions urinq.. e summer erio serva 1 on s Wi

... e continue t rough t%e winter season.

30 74.. Area has stabi1ized and the otopoint wi 1 e clat(linate from furt er

........ re orts.

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D[AIII.O (.'Aa'IYOi~l TIIAH')lltSS ION SURVI YS C,w

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cotLsL-H'rs Pr o ert line ate is land mark Ooko 'and Loomis L

~ s COGENT SHEET

- No change tn condtttona.

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3 73 d e n-u was not com leted after first ins ection.

g.e~nmjmmgd~t~oad fill and washed out a ortion.

d b d h s sufficient'width to allow li ht, vehicle traffic.

e should be restored and draina e channel directed awa from fill slo e.

t w>> to 10/17/73 Recommendation complete . Reviews e continued throug e

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4 30 74 All recommendat>ons ave een comp e e an are eor >ng sat1'Yfactm'll Area has ecome sta e. >s p o opo>n ni e e >m>nate&7rom further re orts.

44t ts I'ROY I'.I)

DIAI3tc0 CAdYOtl 't.'Its'tHS)'I (SS 10tf SUI1VI'YS

500 KV ACGI'.SG Rohl) SIII(Vl'.Y r

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RUDDER . ~kf -I 9 ilhP RI I'EI'I HCI P-2006 ')ATI A. PIIOTOPOIVT ~ SILI'ET NO+ ~

B. PIIOTOPOIi<T I)OCUI~II klTATXOiV:

I LAiVD LIARK o w e r 120 DISTANCE~40 0 DIRECTION

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COfNENT SHEET 12/5/72 Conditions are stable. Some rass s eci h Most rass s ecies have matured rains rass cover will im rove 4 l0/73 Area shows some im rovement but re uires additional work.

Areas devoid of ve etation should be worked with a s ee oot roller and 'seeded.

l0 17 .73 Recommendation had not een comp ete t at e tsme o >s review. At e t~me ot t e previous repor a was e a t e area evoke o vege a ion s ou e wor e wi a s eep-foot ro er an see e . g not necessary, ut t e area s ou be hydrosee ed an straw a lie t to cover e evoke areas. ee area w> a mix ure of 2 -,. Red ats, 0> erennsa yegrass,  ;

. an o rome,

~ o erti szer an > i va i er per acre.

Recommen atsons ave een comp e e , area as goo vege a ive cover an 1s s a e. ss p o opoln wi e e imina e rom future re orts.

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hPI'IIOVI'.D DEAIIl.0 ChiVYOH,. TBAH.'>!I f SSIOIV SUILVL'YS

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PIIOTOIIOT.HT SIKET NO ~

PIIOTOI'OIllT DOCUi'll HTATXOH:

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EIIND IIIIEE T 0 w r- r 2 2 3 DISTANCE~20 p DIEECTION COigEHTS Photopoi'nt locat:ed'at intersection of spur to Tower 123.

COhHENT SHEET 12/5l72 Conditions are unchanged.- Area should be carefully watched, es eciall durin 'ak rainfall eriods. Ha hoto was taken.

ti n of the fill slo e has sett e an ltrove s ig y is .fair. Fi s opes, w ere downslo e. Ve etative recover prac~t a1 should be worked with a shee foot roller an straw, and reseeded.

denote Road is inslo ed to revent roa rainage water rom ur er

~ashin fill slo e. Pro er draina e s ou e main aine .

10/17/73 All recommendations previous y no e ave een comp e e ,

At the time of t is review, one o er recomr~; n a ion was

. u vert in ets s ou ave ver ica risers ins a e o prevent oc age y ru e o cu s opes co ec ing a cu vert in e s.

4 30 74 Area recoverin well. Reviews. will be continued.

hIIVliOVIU Dlhl)I.O CAHYOH TBAi'lSI."IXSSTOII SUILVEYS

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Su.in 211 I'IIO't'OI'0 I HT

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I IAAID!SILK T o v e r 133 DT STAt> Cl!QODOQR I)T.RE( CXOt'I I

COi'I.'IKNTS 4

COHHEHT SHEET 12/5/72: No chari e observed.

4 l0 73: Inslo e roa t roug >nss e turn an carry water o ro ~ng ~ps.

e a eas and roll stravI in wst s ee oo ro er.

~D1773 4 4 1 t 1 t.t 1 7.

Com lete rior recommendatson, rosee as.recommen e a hoto oint I1-23.

recommen atlons ave een completed and the area js beqinnin to DlAIlt.o CA"IYOiht Tl<Alts:IC"" COlt SURVEYS

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Cai'L~lEHTS COtiWEHT SHEET

~ 0 12 5 72 No si nificant chan e. No hoto taken.

4 10 73: Enslo e road and contro ra> nage o revent washin of fl fil a ea has sl i ed into draw. Resee an stabilize with com action shee foot roller.

10 17 73 Recommendations made on 4 10 73 were not c m 1 n this t Th g)gzpz~t~i~~

ossibl t ~r~tc~t'~

is the ma'or roblem.

4 30 74 'Recommendations have been com leted. Area recovered ver well.

This hoto oint will be dro ed from this re ort.

'VliOVI D DIABl.O CAilYOi'l TBAill>i'lfS.'i Loil SUtivl',YS

e 500 kiV ACCI'.SS ROAI) SUI(VI Y NUHBEE ~5 2 6 lblP EEEEElplCE 2006 l)ATI A. PIIOTOI'OINT SBIEI;T kIOo JI. 'PIIOTOPOINT DOCUi'll'.NTATXON:

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LAND IIARK T o w e r l3 7 DISTENCE~6p p DIllECIIPN COkL'IEHTS 2 ~

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COtNENT SHEET 12/5/72 Slight improvement in conditions. Natural sxXtation tra is holdin minor siltation. No hoto taken.

4 10 73: Rainfa on > s opes cause movement own vnzo ralnage channel Inslo e road with rolling- ips to kee water off ggf t n s doin well exce + for slide areas.

ior to winter rains.

10/17/73 Recommen ation comp e e, area appears o e sa.cx 1 1ze . urt

. reviews will be made.

4 30 7 rea im roving - o o os a en. ur er o servatsons ws e made urin next review.

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DIAIII.O Ch)IYON TIIAHSII'I:SS fON flUIwvl.'YS

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llUlfBER QMM30 I tlAP Iwl'('IIll'itlCl' P 2006

'.A.. VIIOTOP() BI'C SI(l'.IC IIO. 3 2 l)0(:Vill:ilTATIOil:

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, COflflENT SHEET

'12 5 72: Sli ht im rovement noted. Grasses are more abundant. Erosion off fill slo e has been reduced.

"4 12 73: No hoto ta en. S i t >m rovemen 1n vege a ion.

10 18 73 No si nificant c an e sn t >s area. rea appears o e s a e.

Further reviews will be made an t e sprsng.

4'9 74 Area stable and ve etation contlnusng to s ow zm rovemen . o further reviews re uire .

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DIAIII.O CAiiIYOiil TBA($!)I~(ASS lOil SURVI YS

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'PHOTOIsOINT SIIEIPT NOe 3 3 PIIOTOVOINT BOGUE'IItt.'t'ATIOif;..

LAND HARK P

ower 186 SPU DIsIawcvQg go 0 g DISLPCIIOÃ QE l

CC'CiENTS r

COHl/ENT SHEET J

-. 12/5/72 Recommendations were not completed. Erosion has occurred off road.

Corrective work vill be done immediate y r cto trails recoverin with rass s echoes. . ra>>s ru e an

- re uires hand work to establish water checks to get water o o the trails.

8 73 Recorrmen e water c ec

"-- - alon conductor lanes were next s rin .

was no one not rutted.

>s a e. e Review wil:1 be ic e ra ic continue

~ .This rea recovering we hoto oint will e

e ic iscontsnue .

.covering we wl vega aIID~

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DIAIII.O CANYON TIIAt<QIIfats ION SUIIVI YS

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P-2006 4 6 fsAiID i'IARIi I

2 5 0 EsTAilcLI1100 Q'T.I<I'.CTIO'I CO<'I.'iEHTS l25 4 6 3:

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CONfiENT SHEET hoto ra h resulted from slope water.

but the dama e was 'minor com ared to the slope. The water is now erodin downspout will control tnis washing con ation.

Fu cu vert overs' S~il k drain s ou 1 d e

Road bed otent below culvert.

ex en e hi o

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guL1ie~is wa~eav~

M.-L Installation at om o

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'n e b r 972. Fill slo es were com acted arith a shee foot lier. straw seed anJfertilizer were blown onto slope.

bservation of area review next s rin . Livestock grazing educed ve etative cover. Ve etation should re enerate w>t winter rains.

4/29/74 ls rev>ew I evea s no eros>on o water ontrol s stems have effective y re uced eros>on o e roa way.

This hoto oint will be e emanate rom u ure r epor s.

AVI'IiOVII)

I)EAII(,0 CAiIYOiiI 'L'IIANSIIESS EOaI SUI<VI YS

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names l'fAP l'1 1'ERl K l'! 0 6

110'COVOIHT . Sill l'.'C NO, P110'COVOlaVC DO('Uill:HTKClON:

Mi'lD ) lAllK NTERSECTEON DlSTAllCK~ DT.V.LG'CT.ON TO TOWERS 277 and 278 COl ll1ENCS Cot'iHENT SHEET No hoto taken.

4 5 73: Fill material is sta le. ege a ion oing we . oa e ee utted from continuous winter use b other loca 0 si ni >can c anges. o p o o a en review wi e ma e next s rin .

0 29 74 Area has stabilized well and ve etation is re-establishin itse f.

Conditions in the area have not deteriorated.

) scontinued from re orts.

h t Al'1'ROYl'.D DlAl'>{0 CAllYON TRANSL1CSS (ON SUllV1'YS

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