ML17174A279
| ML17174A279 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 11/14/1979 |
| From: | Gallagher E, Hayes D, Oestmann M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML17174A277 | List: |
| References | |
| 50-237-79-25, NUDOCS 7912210031 | |
| Download: ML17174A279 (26) | |
See also: IR 05000237/1979025
Text
- f
U.S. NUCLEAR REGULATORY COMMISSION
OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-237/79-25; 50-249/79-23
Docket No. 50-237; 50-249
Licensee:
Commonwealth Edison Company
Post Office Box 767
Chicago, IL
60690
Facility Name:
Dresden Nuclear Power Station, Units 2 and 3
Inspection At:
Dresden Site, Morris, IL
Inspection Condutted :
1
~~ytember 17_, 18 and 24-27, 1979
b[L'?:T~fi'-~ iv
Inspectors:
E'. J. Gallagher /
k"U
~tt*~~-
&'_./ M. J. Oestmann
A.I{_{__~-;;-<' ~;~-
Approved By:
D. W. Hay~¢f
Engineering Support Section 1
Inspection Summary
~lcrfz_1
l f l \\
4r I lrl
Inspection on September 17, 18 and 24-27, 1979 (Report No. 50-237/79-25;
50-249/79-23)
Areas Inspected:
Review of cooling lake construction; observation of soil
borings on north dike; review of monthly surveillance reports on dike struc-
ture; and observation of environmental impact of local private property from
apparent leakage of cooling lake.
The inspection involved a total of 46
onsite inspector-hours by two NRC inspectors.
Results:
No items of noncompliance or deviations were identified.
'9122] 0
D31**
DETAILS
Persons Contacted
Commonwealth Edison Company (CECo)
- B. B. Stephenson, Station Superintendent
- B. Shelton, Administrative Assistant Superintendent
- P. Holland, Staff Project Engineer
E. Budziekowski, Support Engineer
Harza Engineering Company
R. Wong, Field Engineer
Other Persons
Mr. and Mrs. C. Novak, Private Property Owners
- Denotes those in attendance at exit meeting.
Functional or Program Areas Inspected
Details of functional or program areas inspected are documented in Section I
and II of this report.
- 2 -
,
.,
Section I
Prepared by E. J. Gallagher
Reviewed by D. W. Hayes, Chief
Engineering Support Section 1
1.
Observation of Cooling Lake Dike Structure
An inspection of the Dresden Unit 2 and 3 cooling lake and subsurface
drilling was performed during September 24-27, 1979.
One purpose of
this inspection was to determine if the as constructed dike and
foundation meets the original design criteria.
The Final Environmental Statement (FES) (Section 3.4.3) indicates
that foundation preparation for the construction of the dikes required
that all top soil and granular soils be removed.
The material used
for the dike -construction was required to be silty clay common to
the area.
Based on a number of borings (later described) taken at
the toe of the north dike and through the centerline of the dike
there are indications of granular (sand) and permeable material.
The FES also indicated that the material for the dike would be
compacted to a density of 95% modified Proctor density according to
ASTM D1557.
Compaction test records were not available on-site at
Dresden.
CECo contacted R. W. Hunt Company who performed field
testing and inspection of the dike construction.
Hunt Company
indicated that these records have been discarded after seven years
retention.
CECo was also attempting to see if S&L retained the
field test results.
In any event, the presence of granular material (sand and gravel) in
the core and toe of the dike is contrary to original design requirements.
The dike was to be clay fill with an impervious core trench keyed
into impervious material.
Although the core trench does exist, a
lease of granular material has been identified below the core which
permits seepage.
2.
Review of Report by L. Beratan dated April 2, 1973 on Evaluation of
Cooling Lake Dike
The above report was written after the failure of the cooling lake
dike which ocurred on October 13, 1972.
The report evaluates the
cooling lake dike design and construction including field test
reports and boring logs.
This report sites that "many of the borings
indicate that there are lenticular deposits of granular soils along
the perimeter dike of the cooling lake" and that "the majority of
- 3 -
them occur along the northern dike which follows the bank of the
Borings currently being taken also indicate these
granular materials on the north dike.
Mr. L. Beratan goes on to say
that the foundation preparation for the dikes required that these
granular soils be removed before construction of the dike was started.
This may not have been the case on the north dike based on current
borings.
This report also indicates that a formal surveillance program was in
process of being developed.
Comments on this program are discussed
later.
3.
Review of Monthly Surveillance Reports to Determine Whether Adequate
Surveillances Have Been Conducted Since 1971.
CECo has instituted a surveillance program for earth dikes and dams
as of July 2, 1973.
This program was revised to DOS 4450-1 on April
1976 and later revised to current program in DTS 4450-1 April 1979.
The FES (section 5.1.4, item d) required the program to include a
detailed inspection at close intervals of the embankment slopes, the
toe and ground surface beyond the toe of the dike.
In addition, it
requires monitoring of local wells near the north and south dikes
and inspection of the river bank above and below the water level to
determine if there is excessive seepage from the cooling lake.
If
local wells were not sufficient to monitor ground water level fluctu-
ations, then it was recommended that permanent observation piezometers
be installed for that purpose.
This surveillance program was to be
at monthly intervals.
Based on a comparison of the CECo surveillance program and commitments
in the FES, it appears that the current surveillance program is not
as comprehensive as what was originally intended.
The program does
not require the following items:
a.
No requirement to monitor local observation wells nor installation
of permanent piezometers for measuring groundwater levels.
b.
No requirement to observe conditions along the river bank to
monitor seepage or if weakening of the bank is occurring.
c.
The frequency of surveillance is monthly only between April and
October and once during the remaining five months.
Recognizing
the severe winter months, this time period could still be
broader by a few months.
A review of the surveillance reports on file was performed.
The
number of surveillance reports were not complete.
For example, for
1979 a report for April 7, 1979, March 17, 1979 and most recent
- 4 -
August 4, 1979 were the only reports on file.
The responsibility
for this surveillance has been passed from hand to hand and not
retained as should be.
The most recent August 4, 1979 report did
not indicate any seepage from the river bank although the licensee
had been notified of this condition as early as March of 1979.
Based on the above review, improvements such as a more comprehensive
program and more thorough documentation of the surveillance need to
be instituted.
4.
Observe the Construction of Soil Borings on the North Dike by Harza
Engineering
Harza Engineering (Chicago) was retained to perform subsurface
investigation of soil conditions and groundwater levels.
Harza
contracted Raimonde Drilling Company to perform the soil borings.
The plan was to drill a number of borings parallel to the toe of the
dike and between the dike and river bank.
After borings parallel to
the toe indicated granular material and groundwater approximately
two feet below the surface, it was decided to take borings through
the centerline of the dike to confirm the material and composition
of the dike structure.
A number of borings through the dike haVe
indicated granular and gravel material with loss of drilling fluid
from the casings indicating flow path through the dike.
Seepage from two sources on the river bank were estimated at approxi-
mately 0.6 gal/min.
Head drop measurement on boring fill #11 where
drilling fluid was being lost was estimated to be five inches in
four minutes.
(Approximately six feet per minute head drop.)
The attached (18) photos are of the Dresden cooling lake, soil
boring operations and seepage along the Kankakee river bank.
Details of the borings are as follows:
Drill rig used:
AR1281 (Raimonde Drilling Company)
Drill bit used:
Fishtail bit (end discharge) and power auger
Soil sample:
Split spoon sampler and undisturbed soil tubes
Boring Locations:
See attached plan of cooling lake, (Figure 1,
lA and lB)
Boring Log #1 (Parallel to toe of North Dike) September 24, 1979
water_ level in boring two feet below surface
- 5 -
Sample
Depth (Ft.)
Blows per Ft.
Material Description
1
2
3
4
5
0-1.S
20
Brown clay
2.S-4
8
Sand
S-6.S
7
Sand and gravel
7.5-9
so per 3"
Sand and gravel
10-11.5
Blue shale
Boring #2 (Parallel to toe of North Dike) September 24, 1979 water
level two feet from surface
Sample
Depth (Ft.)
Blows per Ft.
Material DescriEtion
1
2
3
0-1.S
26
Brown clay
2.S-4
12
Sand and gravel
S-6.S
68
Shale
Boring #3 (Parallel to toe of North Dike) September 24, 1979 water
level two feet from surface
Sample
DeEth (Ft.)
Blows per Ft.
Material DescriEtion
1
2
3
0-1.5
13
Brown clay
2.5-4
47
Clay silt
S-6.5
so for 6"
Clay silt
Boring #4 (Parallel to toe of North Dike) September 2S, 1979 water
level 3.S feet from surface
SamEle
DeEth (Ft.)
Blows Eer Ft.
Material DescriEtion
1
2
3
4
0-1.S
2S
Brown clay
2.5-4
14
Sand
5-6.S
so for 3"
Shale
7.S-9
Gray shale
Boring #5 (Parallel to toe of North Dike September 25, 1979 water
level 6.5 feet from surface
Sample
DeEth (Ft.)
Blows Eer Ft.
Material DescriEtion
1
2
3
4
5
0-1.5
42
Brown clay
2.5-4
15
Sandy clay
5-6.5
8
Sand and gravel
7.5-9
11
Sand and gravel
10-11.5
50 for 6"
Boring #6 (Parallel to toe of North Dike) September 25, 1979 water
level five feet from surface
- 6 -
Sample
Depth (ft.)
Blows per Ft.
Material Description
1
2
3
4
5
6
0-1.5
13
Sandy clay
2.5-4
16
Brown sand (dry)
5-6.5
11
Sand and gravel (wet)
7.5-9
14
Sand and gravel (wet)
10-11.5
31
Sand and gravel (wet)
12.5-14
50 for 6"
Gray shale
Borings #7 and #8 (between North Dike and river bank) September 26, 1979
No data available at time of report.
Borings #9, #10 and #11 (Centerline of North Dike) September 27, 1979
No date available at time of report.
NOTE:
Boring #11 indicated sand and gravel 29 feet to 34 feet from top
of dike - loss of water noted from boring casing on the order of five
inches per four minute estimated by Harza Engineering.
5.
Review of Licensee Corrective Action
CECo consultants (Harza) are in the process of formulating alternative
measures to correct the seepage from the cooling lake.
These actions
will be reviewed and evaluated during subsequent inspections.
-
7 -
Section II
Prepared by M. J. Oestmann
Reviewed by T. H. Essig, Chief
Environmental and Special
Projects Section
1.
Observation of Leakage from Dresden Cooling Lake
The inspector inspected the north dike of the Dresden cooling lake on
September 17, 18, 24 and 25, 1979 and observed the seepage of water
along the bank of the Kankakee River on Mr. and Mrs. Charles Novak's
private property.
On September 18, 1979, these private property
owners expressed their concern to the inspector of the seepage of
water and subsequent erosion of the banks along their river front
property.
They own 26 lots on the river extending 300 to 400 feet
along the river front.
The inspector noted that the river bank was
peppered with numbers of points of discharges about four feet below
ground level.
The land along the bank was wet and soggy.
Seepage
from two sources on the river bank were estimated to be approximately
0.6 gal/min.
The inspector also observed a large tree fallen in the
river apparently caused by erosion along the bank.
The inspector collected water samples from a local well (15 ft. deep)
on the Novak's property and from the Dresden cooling lake.
No levels
of radioactivity above background were found in the samples.
In addi-
tion, temperature measurements taken of the well water, the Kankakee
River and the seepage from the river bank were at 20°c (68°F).
The
cooling lake water sample was at 30°C (86°F).
On September 18, 1979, Mr. Novak reported to the inspector that he
informed the licensee of the leakage problem on his property for a
period of years and in particular in March 1979 when the problem
became more severe.
The licensee, however, made no mention of this
problem in the records reviewed by the inspector pertaining to the
monthly surveillances of the cooling lake and dikes.
Although no items of noncompliance or deviations were identified
during this inspection, the erosion problem will be examined during
a subsequent inspection to ensure that appropriate actions have been
taken by the licensee to mitigate the cause of the observed environ-
mental impacts.
Attachments:
1.
Figure 1, location of soil borings on north dike
2.
Photos (18) of Dresden cooling lake soil borings and seepage
3.
Excerpts from final environmental statement, 11/73
4.
CECo Dresden lake inspection program (DTS 4450-1 Revision O, 4/79)
- 8 -
"
Iii
I I
t
-
\\
£1GtJR
COOLlllCI LUI
.. "
./
- '\\'
'Set: ~oi \\N c. i-oc,,.:r,**~
Sft..+/-\\OIJ +~lh> b;~_Q.
~u~~-tA t \\ e,
'I
DMJIOf:N STATION B
COOl.ING LAIC£
ttn
I
- . *
,
I ;;. '.' 1 .
- 1
- 1 *
.. * . i J
'
I
......
..!.11:.
1,1 :.i .. f\\T
r
0
2
.a
t-:
I I*
-'tlil
. ** ..
.... . ,
¥
- ,
- r* I
,'**
.* *
'
'-*"* ~..
.
.11****a1 ~~:-~*.:&*t1u .. :.1** .* ~
0 *-*-
'9
CQ
- ~
.
- a
~
')I
CQ
CQ
&
~
-'::;::'-s-*
- "~1
z.'S *1:;,
,I-$~~
a,'lft
..
... -. ..... -
114,! .... ,,
. , .... ,
.
t
-
i~
1.1 .......... ..
I ~ 5
0
' '
I '
- t-1
. . .
I
l-~
....
iiJ:I
,{fn:;)
t * r
. . .
.,,
- --....--...........
~
,
.
,
.. -~ . - .
S'-8
P'-8'
/-fl
~ g ..* , 'It **
11
f-fl
... (}1
- <M
PHOTOS
1.
Dresden Station Unit 1
2.
Cooling lake looking east along North Dike
3.
Cooling lake looking west along North Dike
4.
North Dike - boring on toe of Dike
5.
Seepage on Kankakee River bank
6.
Seepage on Kankakee River bank
7.*
Seepage on Kankakee River bank
8.
Seepage on Kankakee River bank
9.
Seepage on Kankakee River bank
Attachment 2
10.
Measurement of Seepage Along River bank (Harza Engineers)
11.
Measurement of seepage along river bank (Harza Engineers)
12.
Kankakee River bank
13.
Boring at toe of North Dike
14.
Boring at toe of North Dike
15.
Soil boring #1 granular material above shale
16.
Soil boring #1 granular material and blue shale
17.
Soil samples from boring #4
18.
Soil samples from boring #5
I'*,
l
.*.
. ~ .
I'
'1
.I '
!<)
1 :
\\ I
.* , '
,/
, .. ,
U\\
- I
I
J
01
- -
)
I .
"*t
81
I
i
,_
'
' -- -
-- -- - -*-- . - ..
)
.. . .. ] . - .
.
.
-
.
.
.
-
.... : -
..
-
Attachment
3
-'~4
- .:~I
.*
~
,Ji~~*_;;~
- -~**
~.'.J
~~:;.~
~:.~ ...
- ':: ..
relate/~. operation of
.
. ....
DRESDEN NUCLEAR POWER STATION
UNITS2ANlf3
--
- .. -
.
.
- .,,,:.: -~ -
.
'~
- -
-... _ - *--. . .. .:. . . * ... **
- -
COMMONWEALTH EDISON COMPANY . .
-
- .:.*-* -
.* . .... : ... .. : * .. *.:::. :.,* .. -.. .:~ \\.- - . * ... --.... ~:..;.
-.. _. . .--:-:*'-. -. **."':'- *-.
DOCKET NOS. 50-237 AND 50-249 ..
. *- . . - -
,.
. ~ . .
.. . _:* ... -. . . .
... . . ._ .. : ..,,.. -* -
. " . -.. -**. :~*~ -
-
- .. - _ .. _ ...
NOVEMBER 1973
. - .* . .
'*. ~ -
-
r*
-- :--::* *--:: .. -:-*. - . ~::.~-:<**.**--*--::-~.---- .-.*. --
, __ *.
. .
..
- ... -
-*-
__________ ... -. -
- .. - -- . - - ....
.. -
-* -***----* -- -* *-*~--
- - -- .. *.- ..... .
-. -. . . .
. .
-
_- * .. * ... *--*_
- _* ~-~::* :.':: -. . ... - . . . .
. -
- . .
. *-
..:...
-~ .. *
UNITED STATES ATOMIC ENERGY COMMISSION
.
- . -
.
. . - . . . - .. .. .
... .. ..,
.
.
- - ....... -
.
DIRECTORATE OF LICEllSlll&. ~,~:,**:::*.-~*:*.:...-:.>:._.: .. ** - *. * .. -** *
.- ;_. . . . ". NOV 1 9 .. *ltE ""'* ,_ .... *:::. -*~.",;:' ,,;..:;.;.:..:: .:.:..,,*~*:*~* :...* -..... : ... ::,_.: ... : ,: : .... !
~.-~ _. :*
'.:~;:.~*- ~:.: * -: : .. *": * ::... * _> * ... -,..._ -. . *
':t'~i;:_,-~?c;,~=~i:d~i~:i~~~~~~~:~*~T~~:~0o,: __ ,-=~;--~' -_ I
--
...... ~:
.... ~
L
3-12
3 intake.
Gate structures in the return canal, intake canal, and river
discharge canal are used to regulate the division of flow for recirculation
and discharge to the Illinois River.
b.
Site Investigation for Cooling Lakel2,13
Pre-construction investigation consisted of approximately 140 borings
made during the initial investigative stage of the project.
These
borings were made along the aligDI!lent of the dikes, the interior of the
cooling lake and the canal and lift pump structure.
The interior borings
were made to define the extent of the borrow areas and the partition
dike.
Borrow area No. 1 is located in the southeast corner of the cooling
lake and area No. 2 in the northwestern corner of the cooling lake
(Fig. 3.8).
A significant number of the borings were carried down to
bedrock.
The borings indicated that the bedrock varies over the site
from limestone to siltstone and/or sandstone shale.
The siltstone and
sandstone are the caprock over the limestone formations beneath.
The
borings indicate that there is significant variation in the elevation of
the bedrock formation over the site.
This is probably accounted for by
the variability of the resistance of the rocks and the erosion forces
which have acted on them in their geologic past.
Samples of the foundation material were recovered and unconfined compression
test& were run on representative samples of ~he soil to establish its
shearing strength.
Many of the borings indicate that there are lenticular
deposits of granular soils along the perimeter dike of the cooling lake.
The majority of these occur along the northern dikes which follow the bank
of the Kankakee River.
c.
Dike Construction12 , 13
Foundation preparation for the construction of the dikes required that
nll top soil, granular soils, and deleterious material be removed before
construction of the dikes was started.
The material used for construction
was required to be sil~y clay soil which is indigenous to the area. It
was determined that the soil removed from the borrow areas varied.
Nine
prototype soils were used to make the embanlanent.
All of these nine soils
were tested in the soils laboratory of R. W. Hunt Company, Engineers, who
were res onsible
ield control of the compacted dike.
The con-
struction specifications requ re
at t e so
e
e os
e
in 8-inch
loose layers and compacted with suitable compaction equipment so as to
attain a minimum compacted density of 95% of modified Proctor density in*
accordance with ASTM D 1557.
Continuous testing of each lift of the
compacted embankment material was required during construction.
Examina-
tion of the QA documentation indicated that this program was carried out.,. *..,
- - -
d.
Dike Design 12* 13
The embankment was designed for the licensee by Sargent & Lundy, Inc.,
Engineers.
The design parameters which were used were based upon the
unconfined compressive strength of the material used in the embanlanent
construction and the unconfined compressive strength of typical foundation
soils.
The embanlanent was proportioned to have a top width of 12 feet
I
- I
5-7
bedrock.
All soil boring samples were examined by a qualified soils
- engineer and profiles plotted in all suspect areas. It was concluded by
the Applicant's engineers that nowhere in the dike system was there a
potential for the type of failure experienced to repeat itself.
To
provide an additional measure of certainty, sheet pile cutoff walls were
installed and the sheeting driv.en into the bedrock wherever there was any
~question of the foundation material being able to perform its intended
function.
These walls provide additional stability and resistance to
seepage, since the only place seepage can now take place is through the
interlocks of the sheet piling.
7f-
6, / ,4- ( d.) Surveillance Program
A comprehensive formal surveillance program which will provide for
routine inspection of the dikes during the life of the plant is in the
process of being developed by the Applicant.
The program shall include:
detailed inspections, at relatively close time intervals, of the embank-
ment slopes, the toe, and the ground surface beyond the toe; and the
monitoring of local wells near the north and south dikes and inspection of
the river bank above and below water level to determine if there is
excess seepage from the la~e.
The purpose of this program is to identify
any anomalies which might develop and to effect a rapid and meaningful
repair.
The surveillance program shall be included as part of the
environmental technical specifications with a monthly surveillance
interval.
The Applicant shall, also, at the earliest opportunity, determine by
additional investigation, the cause of the 2-foot depression noted in
inspection reports of the south dike.
Any repairs necessary to insu.:e
dike integrity shall be performed.
The results of the investigation
and proposed action shall be submitted to the Commission for review
and approval.
The Applicant shall also demonstrate that the 4-in.
diameter holes along the south dike are not initial stages of the
movement of soil from the dike foundation.
5.2
IMPACTS ON WATER USE
5.2.l Ground Water
The Station withdraws water only from the Cambrian-Ordovician aquifer at
a rate which is small (about 1.5%) compared to other withdrawals in the
area.7 Thus, the Staff concludes that continued use of ground water by
the Station will have negligible impact on the water level in the
Cambrian-Ordovician aquifer.
- ,.
...
DRESDEN LAKE
~NS~ECTIQN
"Dr i1 1979
A.
PURPOSE
Attachment
4
/
... -
B.
The purpose of this procedure! is to visually inspect" Dreltdl\\n
Lake and report potential problems that could have advers1!-'effects
on the operation of the Station *
REFERENCES
1.
rlone.
. ....
C.
PREREQUISITES
1.
-. 2.
3.
4.
Review this procedure prior to Lake inspection.
Review the suggested route for lnspection on the site map
(attached).
AG-type Key will be needed for access to the lake.
Schedule the use of a vehicle for inspection.
5.
6.
Review previous inspection report and note the unusual conditions.-
Two persons will be required for the take inspection.
D.
PRECAUTIONS
1.
None.
E.
LIMITATIONS AND ACTIOU$
1.
None *
...... _
...._F.
PROCEDURE
. --~------
- -1~
The frequency of inspecti6ns is once a month during April
,
through October.
An inspection will be made only once during
_ --------the remaining 5 months *
. ---- ----* -*- -- -
- - - -- -- -
.
.
-
..
-~-;.;-~::*.:.:...:~--.:.--~- 2._. *. The fo 1 lowing procedure has been developed to *ensure an ad~quate~
monthly inspection of the dikes, flumes, and di~ches of the
Dresden Cooling lake and associatea canals.
In addition,
~
this inspection wiil verify proper drainage of the land surrounding
the 1ake to the government pumping station.
- ***-** **----*-* ***
a.
Exteribr Dikes (visual inspection to look for .the following).
.(1)
(2)
(3)
Wet areas on the face of the dike.
Wet areas in the immed.iate area of the base of
the di kc.
..
Slumping* or-falling of dike *c.ompos it iciri *materi aT-*---**
on th.c' f aci: of the di kc.
--
-
...
...
APPROVED
M4Yl 4 '7S
b *
(~) Cracks, open pit holes, slumping en the top of
the dike.
(5) . .Cond.ition .of rlp-rap material and material beneath
rip-rap.
Interior Dikes (visual in~pection to look for the following).
(1)
Slump!ng or falling of dike co~position material *
. (2)
Condition of rip-rap material and material beneath
rip-rap.
(3) *Cratks,* open pit holes, slumping on the top of the dike.
c.
Flumes (visu.al inspection to look for the followiipg).
.
.
- (1)
Slumping or falling of dike composition material.
(2)
Wet areas to either side of flumes.
(3)
Cracks, open pit holes, slumping in the center
flumes.
d.
General (visual inspection to look for the fol lowing).
(1)
(2)
(3)
(4)
Obstruction in the ditches and culverts on the
exterior of dike.
Debris on lake and flume surf.ace.
Damage to exterior fence~
Blockage in culvert beneath intake and discharge
canal.
_Bas in and operation of Goose Lake Pumping Station.
---
. ------*-*-~
~-------
(5)
____
- _(6) Seepage in t_he area ~f th~ _1 i"ft. ~t-~t*i-~n** ~~d: spil
0
lw~y~- -_.~< *.-- ---
'
- -.*
-. -
I -
* ---- *--- ------ -- *--Ci> :_Burrow. *!'\\~ 1 e~-or- .th~. b~-~~~~i ~9 -~f"-~n i~a*1 ~-* i ~to*--~1-i:*h;~~-~*----**------
the dikes or the imnediate area of the dikes.
. ...
----
-~---
--- -:(8) -Dumping of miscellaneous materials on any Commonwealth
Edison property.----_-.
--*- -- -
..... -.
.e.
.
.
.;, *~-,#~**...:.. ........ ~-*--.. - -
Should any of the above mentioned items occur, it is
necessary that there be an irr:mediate investigation to
determine the cause and the necessary corrective action
to be taken.
The corrective action taken will depend
on the nature of the circumstances surrcunding the problem,
but in some instances corrective action would have to
be performed_ illll'lediately because dike failure could
result.
2
. ,...
. --- ..... _ .. _ ...... ___ ...
APPROVED
MAYl 4 '79
0.0.S.R.-
- . . -.
/_
G.
f.
After Inspection, write a brief report summarizing the
condition of the lake and s*urrounding areas.
Also mark
-u?-a copy of .print H-lA showing the location of any
problem areas or unusual conditions.
g.
Route the report to:
(1)
Superintendent
...
(2)
Assistant Superintendent
(3)
Operating Engineer
(lf) Tethnical Staff Supervisor
CHECKL I S"iS
1.
Site maps, attached.
. .
H.
TECHNICAL SPECIFICATfON REFERENCES
1.
None.
-. __ . ----
.. -. -.. . --*-
... _
- -
.. __ ..::;._..
- __ .. -:....-
I -~--~~------ *-----------***-
- ...,------ *---- -- -
-.
--- *.- ... ----* ...... *-- -------- **-*-
. - --- - -- -- --- *---
-
- ---*--- _ _._
- --- ----- -- -* - ~ -* *- -*** --* --- ----- *--- -------
.. _._._..,_ ... ___ ... ______ -. .---.------------.-------*-----__;,-..;.._ ___ ......,. __________ ..--_
..
....
- *-**------ *--- -----* -----*---
--,-------:-------------*~
---**** - -
- -----
.
-
. -**-*-* .
.. .
--
..
--~* ___ ..:.-:::.:=-.-.:.:=_.:.::-.:..: .
..:.-_~ _ _:~--=-.:..-...:.:...._.:_*:.. __________________ :_ _______ APPROVED
MAYl 4 7S
D.O.S.R.~
~
. .
@
- .~
...... ,
.
FLOW REGULATING
/
STATION
e'RI OGE NOS .8
AND 9
2
ILROAD BRIDGE
NOS. 6 AND 7
. . . ..:... ............
~
COLLI NS
BRIDGE NOS.I AND 2
---
START
. ORAi NAGE DITCH
~
-~---*------....._.._.,..._...
___ **---
__ FROM *11A11
1
2
3
'4 s
DTS z.z.so-1
Revision 0
BRIDGE N0.3
"A"
"
GAS __....o,
METERING
~
STATION
345K.V. SWITCHYARD
I. B. T. AREA
138 N.YL SWITCHYARD
OFF-GAS FILTER BUILDING
POWER PLANT UN IT 2 AND 3
..
.
. .
~-----. --*-----
---
.. - ---- ------* .--.--*--**
--- KANKAKEE -- - -* ._, __
. ___
_
RIVER
...
---
. -
---*--
-*-*------
DRESDEN
ROAD
___
- _--_-**=---*-* -*-_* - t'
.
- .
. .* - .'I.
~
-
*-*-*--*-* --*-*----..----
APPROVED - 11
Mi\\Vl 419
- ' I
...... **- *- .. *.. .
. ..
-*
0
' - .
n.o.s.R.
- ~ ..
. -.----
'!
'
_,/ '
-*-- ,*---.
'
'
KANKAKEE
RIVER
'
GRUNDY
WILL
COUNTY
COUNTY
WATER
RETENTION
1.---- OOL
. -- -- -
BRIDGE NO. 5
-
PINE BLUFF ROAD (LORENZO)
5
- -
i>TS . 4Z.S0-1
Revision O
..
-
--- . --
.; ... -* -- --* --
- s
.BRIDGE NO. 4-
. ___ .. : _____ ... _ : - .
. - -* ------- ------ --- -- ---~ -
~----..
...
"
--- ---~-----~---~----
-
APPROVED
VJ.Vt 4 79
n ()_S_R_
-.-. . - .
'
TOP OF DYKE
- .
DTS 4450-1
Revision 0
__
-
EXISTING GAS TRANS. LINE
____ __:._ A.T .& T. COMMUNICATION CABLE
-
-
-
~ INSPECTION PATHS
---
KANKAKEE
RIVER
tHICAGO AND ALTON
--*-
.. : . .
.... :=-.~--* ..... * . '-..:.::..::-_:..:::...:.~~*1w*
-- .*-**-- --- -- --* --- .. -**** **- -* .
-
. *-.**~ **r:**-----*~-----,--:. ____
_
-
RESERVOIR
AREA -- --
- -
-
-
'
START OF DRAINAGE
-- - --------DITCH
.. .
.. ---*- -- . --* ... *-*-- . - *- --- .. -** ..
-
...
-
11
Figure 1.
6 (f ina 1)
....
APPROVED
___ NAY! 4 '79
D.O.S.R.
....
.. *-
-* ....
ROUTE FOR MONTHLY LAKE,
DIKES AND FLUMES INSPECTIOH