Impoundments Cap Design Drawings

,1'(3(1'(1&( 32:(5 /,*+7 %/8( 9$//(< 32:(5 67$7,21 $6+ ,03281'0(17 &/2685( &216758&7,21 3/$16 ( 7580$1 5' ,1'(3(1'(1&( 0,66285, )(%58$5<

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Y

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EP

6KHHW /LVW 7DEOH

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NORTH ASH IMPOUNDMENT

SOUTH FLY ASH IMPOUNDMENT

BOTTOM ASH IMPOUNDMENT

35(3$5(' )25

,1'(3(1'(1&( 32:(5 /,*+7

S. POWELL RD.

( 7580$1 5' ,1'(3(1'(1&( 0,66285, INDEPENDENCE POWER AND LIGHT BLUE VALLEY POWER STATION

6KHHW 1XPEHU 6KHHW 7LWOH

&RYHU 6KHHW

$HULDO 6XUYH\

([LVWLQJ 6LWH &RQGLWLRQV

([LVWLQJ 1RUWK $VK ,PSRXQGPHQW

([LVWLQJ 6RXWK $VK ,PSRXQGPHQWV

1HZ %DVH RI )LQDO &RYHU *UDGH

1HZ 1RUWK $VK ,PSRXQGPHQW

1HZ 6RXWK $VK ,PSRXQGPHQWV

&URVV 6HFWLRQV 1RUWK ,PSRXQGPHQWV

&URVV 6HFWLRQV 1RUWK ,PSRXQGPHQWV

&URVV 6HFWLRQV 6RXWK ,PSRXQGPHQWV

&URVV 6HFWLRQV 6RXWK ,PSRXQGPHQWV

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35(3$5(' %<

AY

6&6 $48$7(55$

78

W

H IG

H

E. TRUMAN RD.

0,66285, 67$7( &(57,),&$7( 2) $87+25,7< 352-(&7 180%(5 : 67 68,7( 29(5/$1' 3$5. .$16$6 3+ )$; 12 ::: 6&6(1*,1((56 &20

,668(' )25 %,'',1*

APPROXIMATE ASH IMPOUNDMENT BOUNDARY FENCE (APPROXIMATE) EXISTING ROAD RAILROAD TRACKS OVERHEAD ELECTRIC (APPROXIMATE)

2.

ASH IMPOUNDMENT BOUNDARIES, FENCING, EXISTING ROADS, RAILROAD TRACKS, STRUCTURES, AND UTILITIES ARE APPROXIMATE.

3.

UTILITY LOCATIONS WILL BE VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION.

4.

OVERHEAD POWER LINE TO BE REMOVED BY INDEPENDENCE POWER & LIGHT BEFORE START OF CONSTRUCTION.

$(5,$/ 6859(<

AERIAL IMAGE FROM SHAFER, KLINE, & WARREN, INC. DATED JULY 2015.

NORTH FLY ASH IMPOUNDMENT

PLANT WASTE WATER PIPE TRANSITION TO UNDERGROUND PIPE

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

METAL PUMP HOUSE BUILDING

%/8( 9$//(< 32:(5 67$7,21

BOTTOM ASH IMPOUNDMENT

ABOVEGROUND PIPE

PLANT WASTE WATER ABOVEGROUND PIPE

100 SCALE

0

100

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

UNDERGROUND PIPING FROM PUMP HOUSE AND BOTTOM ASH POND

,1'(3(1'(1&( 32:(5 /,*+7

SOUTH FLY ASH IMPOUNDMENT

6&6 $48$7(55$

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' $HULDO GZJ )HE SP /D\RXW 1DPH $HULDO 6XUYH\ %\ UGW

POWER / LIGHT POLE PLANT WATER/CONTACT WATER PIPELINES COAL PILE WATER UNDERGROUND PIPING ABOVEGROUND PIPING

1.

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

NOTES:

LEGEND:

200 FEET

)25 6,7( 25,(17$7,21 21/<

LEGEND:

2.

ASH IMPOUNDMENT BOUNDARIES, FENCING, EXISTING ROADS, RAILROAD TRACKS, STRUCTURES, AND UTILITIES ARE APPROXIMATE.

3.

UTILITY LOCATIONS WILL BE VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION.

4.

OVERHEAD POWER LINE TO BE REMOVED BY INDEPENDENCE POWER & LIGHT BEFORE START OF CONSTRUCTION.

,1'(3(1'(1&( 32:(5 /,*+7

SOUTH FLY ASH IMPOUNDMENT

UNDERGROUND PIPING FROM PUMP HOUSE AND BOTTOM ASH POND

BOTTOM ASH IMPOUNDMENT

METAL PUMP HOUSE BUILDING

PLANT WASTE WATER PIPE TRANSITION TO UNDERGROUND PIPE

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

NORTH FLY ASH IMPOUNDMENT

%/8( 9$//(< 32:(5 67$7,21

SOUTH FLY ASH IMPOUNDMENT BOUNDARY

ABOVEGROUND PIPE

6&6 $48$7(55$

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' ([LVWLQJ &RQGLWLRQV GZJ )HE SP /D\RXW 1DPH ([LVWLQJ 6LWH &RQGLWLRQV %\ UGW

POWER / LIGHT POLE PLANT WATER/CONTACT WATER PIPELINES COAL PILE WATER UNDERGROUND PIPING ABOVEGROUND PIPING

TOPOGRAPHIC SURVEY FROM SHAFER, KLINE, & WARREN, INC. DATED JULY 2015.

PLANT WASTE WATER ABOVEGROUND PIPE

100 SCALE

0

100

200 FEET

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

EXISTING ROAD RAILROAD TRACKS OVERHEAD ELECTRIC (APPROXIMATE)

1.

(;,67,1* 6,7( &21',7,216

EXISTING 5' CONTOUR EXISTING 1' CONTOUR APPROXIMATE ASH IMPOUNDMENT BOUNDARY FENCE (APPROXIMATE)

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

NOTES:

NOTES:

LEGEND:

1.

TOPOGRAPHIC SURVEY FROM SHAFER, KLINE, & WARREN, INC. DATED JULY 2015.

2.

ASH IMPOUNDMENT BOUNDARIES, FENCING, EXISTING ROADS, RAILROAD TRACKS, STRUCTURES, AND UTILITIES ARE APPROXIMATE.

EXISTING 5' CONTOUR EXISTING 1' CONTOUR APPROXIMATE ASH IMPOUNDMENT BOUNDARY FENCE (APPROXIMATE)

3.

4.

UTILITY LOCATIONS WILL BE VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION. OVERHEAD POWER LINE TO BE REMOVED BY INDEPENDENCE POWER & LIGHT BEFORE START OF CONSTRUCTION.

EXISTING ROAD RAILROAD TRACKS

POWER / LIGHT POLE PLANT WATER/CONTACT WATER PIPELINES COAL PILE WATER UNDERGROUND PIPING

UNDERGROUND PIPING FROM PUMP HOUSE AND BOTTOM ASH POND

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16 ( 7580$1 5' ,1'(3(1'(1&( 0,66285,

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

,1'(3(1'(1&( 32:(5 /,*+7

NORTH FLY ASH IMPOUNDMENT

%/8( 9$//(< 32:(5 67$7,21

SOUTH FLY ASH IMPOUNDMENT BOUNDARY

(;,67,1* 1257+ $6+ ,03281'0(17

ABOVEGROUND PIPING

6&6 $48$7(55$

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' ([LVWLQJ &RQGLWLRQV GZJ )HE SP /D\RXW 1DPH ([LVWLQJ 1RUWK $VK ,PSRXQGPHQW %\ UGW

OVERHEAD ELECTRIC (APPROXIMATE)

METAL PUMP HOUSE BUILDING

0 SCALE

FEET

LEGEND:

NOTES: 1.

TOPOGRAPHIC SURVEY FROM SHAFER, KLINE, & WARREN, INC. DATED JULY 2015.

EXISTING 5' CONTOUR EXISTING 1' CONTOUR

2.

3.

SOUTH FLY ASH IMPOUNDMENT BOUNDARY

UTILITY LOCATIONS WILL BE VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION.

APPROXIMATE ASH IMPOUNDMENT BOUNDARY FENCE (APPROXIMATE) EXISTING ROAD RAILROAD TRACKS

OVERHEAD POWER LINE TO BE REMOVED BY INDEPENDENCE POWER & LIGHT BEFORE START OF CONSTRUCTION.

OVERHEAD ELECTRIC (APPROXIMATE) POWER / LIGHT POLE PLANT WATER/CONTACT WATER PIPELINES COAL PILE WATER UNDERGROUND PIPING

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

UNDERGROUND PIPING FROM PUMP HOUSE AND BOTTOM ASH POND

%/8( 9$//(< 32:(5 67$7,21

,1'(3(1'(1&( 32:(5 /,*+7

(;,67,1* 6287+ $6+ ,03281'0(176

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

ABOVEGROUND PIPING

NORTH FLY ASH IMPOUNDMENT BOUNDARY

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

METAL PUMP HOUSE BUILDING

6&6 $48$7(55$

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' ([LVWLQJ &RQGLWLRQV GZJ )HE SP /D\RXW 1DPH ([LVWLQJ 6RXWK $VK ,PSRXQGPHQWV %\ UGW

4.

ASH IMPOUNDMENT BOUNDARIES, FENCING, EXISTING ROADS, RAILROAD TRACKS, STRUCTURES, AND UTILITIES ARE APPROXIMATE.

ABOVEGROUND PIPE PLANT WASTE WATER PIPE TRANSITION TO UNDERGROUND PIPE

0 SCALE

FEET

LEGEND:

3.

UTILITY LOCATIONS WILL BE VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION.

4.

NEW CONTOURS ARE THE BOTTOM OF THE FINAL COVER SYSTEM. THIS GENERALLY REPRESENTS THE TOP OF ASH IF INSIDE ASH IMPOUNDMENTS OR TOP OF SUBGRADE IF OUTSIDE ASH IMPOUNDMENTS. FIELD ADJUSTMENTS WILL BE NECESSARY.

5.

IMPOUNDMENT AREAS WITH RIP RAP LINED DISCHARGE STRUCTURES WILL REQUIRE ADDITIONAL EXCAVATION TO ALLOW FOR APPLICABLE FINAL COVER COMPONENTS (SPECIFIC TO THE FINAL COVER OPTION) UNDER THE RIP RAP. SEE DETAIL 5 ON DRAWING 14.

6.

SEE DRAWINGS 9 THROUGH 12 FOR CROSS SECTIONS.

7.

SEE SPECIFICATIONS FOR FURTHER INFORMATION.

8.

PIPES CARRYING PLANT WATER FROM THE POWER STATION WILL BE DISCONNECTED IN THE AREAS NEEDED FOR CLEAN CLOSURE AND CONSTRUCTION OF THE SETTLING BASIN. A NEW PIPE WILL BE RECONNECTED TO THE EXISTING SYSTEM AND BE INSTALLED TO DISCHARGE INTO THE NEWLY CONSTRUCTED SETTLING BASIN.

BOTTOM ASH IMPOUNDMENT BOUNDARY

,1'(3(1'(1&( 32:(5 /,*+7

ABANDON UNDERGROUND PIPING FROM PUMP HOUSE AND BOTTOM ASH POND IF BELOW FINAL COVER

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

ASH IMPOUNDMENT BOUNDARIES, FENCING, EXISTING ROADS, RAILROAD TRACKS, STRUCTURES, AND UTILITIES ARE APPROXIMATE.

PLANT WASTE WATER PIPE TRANSITION TO UNDERGROUND PIPE (SEE NOTE 8)

100 SCALE

0

100

200 FEET

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

SOUTH FLY ASH IMPOUNDMENT BOUNDARY

2.

%/8( 9$//(< 32:(5 67$7,21

NEW GRAVEL ACCESS ROAD (SEE DETAIL 6)

POWER / LIGHT POLE PLANT WATER/CONTACT WATER PIPELINES COAL PILE WATER UNDERGROUND PIPING ABOVEGROUND PIPING NEW 5' CONTOUR NEW 1' CONTOUR NEW 5' STORM WATER BASIN CONTOUR NEW 1' STORM WATER BASIN CONTOUR

TOPOGRAPHIC SURVEY FROM SHAFER, KLINE, & WARREN, INC. DATED JULY 2015.

6&6 $48$7(55$

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' 3URSRVHG &RQGLWLRQV GZJ )HE SP /D\RXW 1DPH 1HZ %DVH RI )LQDO &RYHU *UDGH %\ UGW

EXISTING ROAD RAILROAD TRACKS OVERHEAD ELECTRIC (APPROXIMATE)

1.

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

EXISTING 5' CONTOUR EXISTING 1' CONTOUR APPROXIMATE ASH IMPOUNDMENT BOUNDARY FENCE (APPROXIMATE)

1(: %$6( 2) ),1$/ &29(5 *5$'(

NOTES:

3.

UTILITY LOCATIONS WILL BE VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION.

4.

NEW CONTOURS ARE THE BOTTOM OF THE FINAL COVER SYSTEM. THIS GENERALLY REPRESENTS THE TOP OF ASH IF INSIDE ASH IMPOUNDMENTS OR TOP OF SUBGRADE IF OUTSIDE ASH IMPOUNDMENTS. FIELD ADJUSTMENTS WILL BE NECESSARY.

5.

IMPOUNDMENT AREAS WITH RIP RAP LINED DISCHARGE STRUCTURES WILL REQUIRE ADDITIONAL EXCAVATION TO ALLOW FOR APPLICABLE FINAL COVER COMPONENTS (SPECIFIC TO THE FINAL COVER OPTION) UNDER THE RIP RAP. SEE DETAIL 5 ON DRAWING 14.

6.

SEE DRAWINGS 9 THROUGH 12 FOR CROSS SECTIONS.

7.

SEE SPECIFICATIONS FOR FURTHER INFORMATION.

8.

PIPES CARRYING PLANT WATER FROM THE POWER STATION WILL BE DISCONNECTED IN THE AREAS NEEDED FOR CLEAN CLOSURE AND CONSTRUCTION OF THE SETTLING BASIN. A NEW PIPE WILL BE RECONNECTED TO THE EXISTING SYSTEM AND BE INSTALLED TO DISCHARGE INTO THE NEWLY CONSTRUCTED SETTLING BASIN.

NEW GRAVEL ACCESS ROAD (SEE DETAIL 6)

ABANDON UNDERGROUND PIPING FROM PUMP HOUSE AND BOTTOM ASH POND IF BELOW FINAL COVER

LEGEND: EXISTING 5' CONTOUR EXISTING 1' CONTOUR APPROXIMATE ASH IMPOUNDMENT BOUNDARY FENCE (APPROXIMATE) EXISTING ROAD RAILROAD TRACKS OVERHEAD ELECTRIC (APPROXIMATE) POWER / LIGHT POLE

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

,1'(3(1'(1&( 32:(5 /,*+7

SOUTH FLY ASH IMPOUNDMENT BOUNDARY

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

ASH IMPOUNDMENT BOUNDARIES, FENCING, EXISTING ROADS, RAILROAD TRACKS, STRUCTURES, AND UTILITIES ARE APPROXIMATE.

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

2.

%/8( 9$//(< 32:(5 67$7,21

REGRADE STEEP EMBANKMENT AREAS TO SHALLOWER SLOPES (SEE DETAIL 3)

TOPOGRAPHIC SURVEY FROM SHAFER, KLINE, & WARREN, INC. DATED JULY 2015.

6&6 $48$7(55$

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' 3URSRVHG &RQGLWLRQV GZJ )HE SP /D\RXW 1DPH 1HZ 1RUWK $VK ,PSRXQGPHQW %\ UGW

REGRADE STEEP EMBANKMENT AREAS TO SHALLOWER SLOPES (SEE DETAIL 3)

1.

1(: 1257+ $6+ ,03281'0(17

NOTES:

PLANT WATER/CONTACT WATER PIPELINES COAL PILE WATER UNDERGROUND PIPING ABOVEGROUND PIPING NEW 5' CONTOUR NEW 1' CONTOUR

BOTTOM ASH IMPOUNDMENT BOUNDARY

0

NEW 5' STORM WATER BASIN CONTOUR SCALE NEW 1' STORM WATER BASIN CONTOUR

FEET

PLANT WATER/CONTACT WATER PIPELINES

1.

TOPOGRAPHIC SURVEY FROM SHAFER, KLINE, & WARREN, INC. DATED JULY 2015.

EXISTING 1' CONTOUR

COAL PILE WATER UNDERGROUND PIPING 2.

APPROXIMATE ASH IMPOUNDMENT BOUNDARY

ABOVEGROUND PIPING

ASH IMPOUNDMENT BOUNDARIES, FENCING, EXISTING ROADS, RAILROAD TRACKS, STRUCTURES, AND UTILITIES ARE APPROXIMATE.

FENCE (APPROXIMATE)

NEW 5' CONTOUR

3.

UTILITY LOCATIONS WILL BE VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION.

EXISTING ROAD

NEW 1' CONTOUR 4.

RAILROAD TRACKS

NEW 5' STORM WATER BASIN CONTOUR

OVERHEAD ELECTRIC (APPROXIMATE)

NEW 1' STORM WATER BASIN CONTOUR

NEW CONTOURS ARE THE BOTTOM OF THE FINAL COVER SYSTEM. THIS GENERALLY REPRESENTS THE TOP OF ASH IF INSIDE ASH IMPOUNDMENTS OR TOP OF SUBGRADE IF OUTSIDE ASH IMPOUNDMENTS. FIELD ADJUSTMENTS WILL BE NECESSARY.

5.

IMPOUNDMENT AREAS WITH RIP RAP LINED DISCHARGE STRUCTURES WILL REQUIRE ADDITIONAL EXCAVATION TO ALLOW FOR APPLICABLE FINAL COVER COMPONENTS (SPECIFIC TO THE FINAL COVER OPTION) UNDER THE RIP RAP. SEE DETAIL 5 ON DRAWING 14.

6.

SEE DRAWINGS 9 THROUGH 12 FOR CROSS SECTIONS.

7.

SEE SPECIFICATIONS FOR FURTHER INFORMATION.

8.

PIPES CARRYING PLANT WATER FROM THE POWER STATION WILL BE DISCONNECTED IN THE AREAS NEEDED FOR CLEAN CLOSURE AND CONSTRUCTION OF THE SETTLING BASIN. A NEW PIPE WILL BE RECONNECTED TO THE EXISTING SYSTEM AND BE INSTALLED TO DISCHARGE INTO THE NEWLY CONSTRUCTED SETTLING BASIN.

ABANDON UNDERGROUND PIPING FROM PUMP HOUSE AND BOTTOM ASH POND IF BELOW FINAL COVER

NORTH FLY ASH IMPOUNDMENT BOUNDARY BOTTOM ASH IMPOUNDMENT BOUNDARY

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

,1'(3(1'(1&( 32:(5 /,*+7

SOUTH FLY ASH IMPOUNDMENT BOUNDARY

6&6 $48$7(55$

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' 3URSRVHG &RQGLWLRQV GZJ )HE SP /D\RXW 1DPH 1HZ 6RXWK $VK ,PSRXQGPHQWV %\ UGW

NEW GRAVEL ACCESS ROAD (SEE DETAIL 6)

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

EXISTING 5' CONTOUR

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

REGRADE STEEP EMBANKMENT AREAS TO SHALLOWER SLOPES (SEE DETAIL 3)

%/8( 9$//(< 32:(5 67$7,21

NOTES:

1(: 6287+ $6+ ,03281'0(176

POWER / LIGHT POLE

LEGEND:

PLANT WASTE WATER PIPE TRANSITION TO UNDERGROUND PIPE (SEE NOTE 8)

0 SCALE

FEET

SEDIMENTATION BASIN EXISTING DRAINAGE DITCH

NEW ELEVATION TOP OF ASH OR SUBGRADE

50

EMBANKMENT EXCAVATION

A

B' EMBANKMENT EXCAVATION

C'

A'

50 100

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

NORTH ASH IMPOUNDMENT

%/8( 9$//(< 32:(5 67$7,21

,1'(3(1'(1&( 32:(5 /,*+7

REDUCE SLOPE STEEPNESS AND FINE GRADE (SEE DETAIL 3)

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

NORTH ASH IMPOUNDMENT BOUNDARY

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

&5266 6(&7,216 1257+ ,03281'0(176

NEW ELEVATION TOP OF ASH OR SUBGRADE

6&6 $48$7(55$

20

NORTH ASH IMPOUNDMENT BOUNDARY

NOTES:

10

NEW GRADE TOP OF ASH OR SUBGRADE (BOTTOM OF FINAL COVER)

10

SOUTH ASH IMPOUNDMENT

C

BOTTOM ASH IMPOUNDMENT

EXISTING ELEVATION

EXISTING ELEVATION

B NORTH ASH IMPOUNDMENT BOUNDARY

FINAL COVER EXTENDS TO LIMITS OF ASH WHERE CAP TIES INTO EXISTING CLAY EMBANKMENT.

2.

IMPOUNDMENT BOUNDARIES ARE APPROXIMATE.

NORTH ASH IMPOUNDMENT BOUNDARY

1.

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' &URVV6HFWLRQV GZJ )HE SP /D\RXW 1DPH &URVV 6HFWLRQV 1RUWK ,PSRXQGPHQWV %\ UGW

LEGEND EXISTING GRADE

EMBANKMENT EXCAVATION REDUCE SLOPE STEEPNESS AND FINE GRADE (SEE DETAIL 3)

EXISTING DRAINAGE DITCH

EXISTING ELEVATION

NEW ELEVATION TOP OF SUBGRADE

SOUTH ASH IMPOUNDMENT EXISTING ELEVATION 20

NEW ELEVATION TOP OF ASH OR SUBGRADE

F

NORTH ASH IMPOUNDMENT BOUNDARY

E'

SEDIMENTATION BASIN 50 50 100

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

%/8( 9$//(< 32:(5 67$7,21

EMBANKMENT EXCAVATION

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

&5266 6(&7,216 1257+ ,03281'0(176

NORTH ASH IMPOUNDMENT BOUNDARY

NEW ELEVATION TOP OF SUBGRADE

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

EXISTING ELEVATION

,1'(3(1'(1&( 32:(5 /,*+7

EXISTING ELEVATION

6&6 $48$7(55$

10

NEW ELEVATION TOP OF ASH OR SUBGRADE

10

D

BOTTOM ASH IMPOUNDMENT

NOTES:

D' EMBANKMENT EXCAVATION

E

NORTH ASH IMPOUNDMENT

FINAL COVER EXTENDS TO LIMITS OF ASH WHERE CAP TIES INTO EXISTING CLAY EMBANKMENT.

2.

IMPOUNDMENT BOUNDARIES ARE APPROXIMATE.

1.

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' &URVV6HFWLRQV GZJ )HE SP /D\RXW 1DPH &URVV 6HFWLRQV 1RUWK ,PSRXQGPHQWV %\ UGW

LEGEND EXISTING GRADE

NEW GRADE TOP OF ASH OR SUBGRADE (BOTTOM OF FINAL COVER) EMBANKMENT EXCAVATION

F'

H' EXISTING ELEVATION

20

REDUCE SLOPE STEEPNESS AND FINE GRADE (SEE DETAIL 3)

SEDIMENTATION BASIN 50 50 100 : WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

NEW ELEVATION TOP OF ASH OR SUBGRADE SOUTH ASH IMPOUNDMENT BOUNDARY

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

%/8( 9$//(< 32:(5 67$7,21

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

&5266 6(&7,216 6287+ ,03281'0(176

,1'(3(1'(1&( 32:(5 /,*+7

SOUTH ASH IMPOUNDMENT BOUNDARY

EMBANKMENT EXCAVATION (BETWEEN BOTTOM ASH AND SOUTH ASH IMPOUNDMENTS)

EMBANKMENT EXCAVATION

NEW ELEVATION TOP OF ASH OR SUBGRADE

6&6 $48$7(55$

10

I'

EXISTING DRAINAGE DITCH

10

I

G EMBANKMENT EXCAVATION

REDUCE SLOPE STEEPNESS AND FINE GRADE (SEE DETAIL 3)

H

EXISTING DRAINAGE DITCH

NORTH ASH IMPOUNDMENT

BOTTOM ASH IMPOUNDMENT BOTTOM ASH IMPOUNDMENT BOUNDARY

EXISTING ELEVATION

EXISTING ELEVATION

FINAL COVER EXTENDS TO LIMITS OF ASH WHERE CAP TIES INTO EXISTING CLAY EMBANKMENT.

2.

IMPOUNDMENT BOUNDARIES ARE APPROXIMATE.

NOTES:

SOUTH ASH IMPOUNDMENT BOUNDARY

1.

1 ?&LW\ RI ,QGHSHQGHQFH?,QGHSHQGHQFH 3RZHU /LJKW?3URMHFWV? $VK 3RQG &ORVXUH 'HVLJQ?$XWR&$'?' ' &URVV6HFWLRQV GZJ )HE SP /D\RXW 1DPH &URVV 6HFWLRQV 6RXWK ,PSRXQGPHQWV %\ UGW

LEGEND EXISTING GRADE NEW GRADE TOP OF ASH OR SUBGRADE (BOTTOM OF FINAL COVER)

NEW GRADE SEDIMENTATION BASIN EMBANKMENT EXCAVATION

NORTH DIVIDER BERM (SEE PROFILE M-M' AND DETAIL 8)

EMBANKMENT EXCAVATION

SOUTH ASH IMPOUNDMENT NEW ELEVATION TOP OF ASH OR SUBGRADE

G'

50 50

REDUCE SLOPE STEEPNESS AND FINE GRADE (SEE DETAIL 3)

EXISTING ELEVATION EXISTING ELEVATION NEW ELEVATION SETTLING BASIN

EMBANKMENT EXCAVATION NORTH ASH IMPOUNDMENT

BOTTOM ASH IMPOUNDMENT

NEW ELEVATION TOP OF ASH OR SUBGRADE

N

M'

J J'

L

N'

100

SEDIMENTATION BASIN

K'

: WK 6W 6WH 2YHUODQG 3DUN .DQVDV 3+ )$;

( 7580$1 5' ,1'(3(1'(1&( 0,66285,

%/8( 9$//(< 32:(5 67$7,21

NEW STORM WATER DRAINAGE CHANNEL (FIELD FIT TO DIVERT STORM WATER FROM ENTERING SEDIMENTATION BASIN)

$6+ ,03281'0(17 &/2685( &216758&7,21 3/$16

&5266 6(&7,216 6287+ ,03281'0(176

NEW ELEVATION SETTLING BASIN

,1'(3(1'(1&( 32:(5 /,*+7

SOUTH ASH IMPOUNDMENT BOUNDARY

ACCESS ROAD BETWEEN IMPOUNDMENTS, SEE DETAIL 6 (FIELD FIT FINAL GRADE ELEVATIONS TO BE HIGHER THAN ADJACENT ASH ELEVATIONS)

SEDIMENTATION BASIN BOUNDARY

EXISTING ELEVATION

EMBANKMENT EXCAVATION

SEDIMENTATION BASIN BOUNDARY

TOP OF NORTH DIVIDER BERM (FIELD FIT FINAL GRADE ELEVATIONS TO BE HIGHER THAN ADJACENT ASH ELEVATIONS)

6&6 $48$7(55$

20

NOTES:

NEW ELEVATION TOP OF SUBGRADE

SEDIMENTATION BASIN BOUNDARY

NEW GRADE SEDIMENTATION BASIN

ASH IN-PLACE IMPOUNDMENT CLOSURE

10

NEW ELEVATION TOP OF ASH OR SUBGRADE

EMBANKMENT EXCAVATION

10

SOUTH ASH IMPOUNDMENT BOUNDARY

ACCESS ROAD BETWEEN IMPOUNDMENTS, SEE DETAIL 6 (FIELD FIT FINAL GRADE ELEVATIONS TO BE HIGHER THAN ADJACENT ASH ELEVATIONS)

EXISTING ELEVATION

NEW GRADE TOP OF ASH OR SUBGRADE (BOTTOM OF FINAL COVER)

FINAL COVER EXTENDS TO LIMITS OF ASH WHERE CAP TIES INTO EXISTING CLAY EMBANKMENT.

2.

IMPOUNDMENT BOUNDARIES ARE APPROXIMATE.

1.

SOUTH ASH IMPOUNDMENT BOUNDARY

BOTTOM ASH IMPOUNDMENT BOUNDARY

EXISTING ELEVATION

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LEGEND EXISTING GRADE

ASH IMPOUNDMENT CLEAN CLOSURE

NORTH DIVIDER BERM

SOUTH ASH IMPOUNDMENT

K

M L'

EMBANKMENT GRADING (SEE DETAILS 3 AND 4)

EMBANKMENT GRADING (SEE DETAILS 3 AND 4)

SCARIFY EXISTING GRADE PRIOR TO PLACEMENT OF FINAL COVER SYSTEM

REMOVE EMBANKMENT SOIL TO DESIGNATED ELEVATION. REPLACE GRAVEL ROAD ON NEW ELEVATION AS DESIGNATED.

FINAL COVER SYSTEM (DETAIL 1, OPTION 1 )

FINAL COVER SYSTEM (DETAIL 1, OPTIONS 2 OR 3)

VEGETATION NEW GRADE AND BASE OF BARRIER LAYER NEW GRADE

ASH

18" MIN.

BARRIER SOIL LAYER K 1X10-7 CM/SEC

OPTION 1: SOIL COVER

OPTIONS 2 OR 3: GCL OR BENTONITE BACKED GEOMEMBRANE COVER

ASH

TYPICAL FINAL COVER TERMINATION AT BERM

2

13 13

OPTION 1: SOIL COVER

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TOPSOIL

3' MIN. EMBANKMENT NOTCH OUT OF EXISTING SOIL TO PLACE BARRIER LAYER

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6" MIN.

Not to Scale

VEGETATION

VEGETATE NEW REDUCED SLOPE TOE SLOPE GENERALLY REMAINS IN ORIGINAL LOCATION

VEGETATION

TOP OF FINAL COVER SYSTEM NEW GRADE

E

OP

L PS

EE

E LOP DS E C U 1 RED 3 TYP. ST

7-9 11-13

EXISTING SOIL EMBANKMENT

TOP OF FINAL COVER SYSTEM

ASH

TYPICAL EMBANKMENT GRADING WITH SLOPE REDUCTION

3

13

Not to Scale NOTES: 1. REDUCED SLOPE IS TO BE A MAXIMUM OF 3:1 WHERE PRACTICAL. IT IS ACCEPTABLE FOR AREAS TO HAVE A STEEPER WHERE NOT FEASIBLE TO CONSTRUCT 3:1 WITHOUT ADJUSTING THE TOE OF SLOPE.

TOPSOIL BENTONITE BACKED 30-MIL TEXTURED GEOMEMBRANE (SUCH AS GSE GUNSEAL OR EQUIVALENT)

ASH

EXISTING GRADE

OPTION 3: BENTONITE BACKED GEOMEMBRANE COVER SMOOTH OUT SLOPE AND VEGETATE NEW GRA

DE

1

7-8 13,14

13

FINAL COVER TERMINATION AT BERM, SEE DETAIL 2

EXISTING GRADE

FINAL COVER DETAIL

TOP OF FINAL COVER SYSTEM

Not to Scale REMOVE GRAVEL FOR REUSE ON NEW ACCESS ROADS

4

13

EXISTING SOIL EMBANKMENT

TOP OF FINAL COVER SYSTEM

ASH

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EXCAVATE SOIL ABOVE NEW GRADE

OPTION 2: GCL COVER

12" MIN.

VEGETATE OR CONSTRUCT NEW ACCESS ROAD (SEE DETAIL 6) ON NEW GRADE AS APPLICABLE FINAL COVER TERMINATION AT BERM, SEE DETAIL 2

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ASH

REMOVE GRAVEL FOR REUSE ON NEW ACCESS ROADS

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NEEDLE-PUNCHED REINFORCED NON-WOVEN GEOSYNTHETIC CLAY LINER (GCL)

,1'(3(1'(1&( 32:(5 /,*+7

TOPSOIL

12" MIN.

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ASH

TYPICAL EMBANKMENT GRADING WITH SLOPE SMOOTHING Not to Scale

18" MIN. THICKNESS RIP RAP LAYER

FINAL COVER SYSTEM (DETAIL 1, OPTION 1)

SLOPE TO DRAIN

50' MIN.

EXISTING SOIL EMBANKMENT

OPTION 1: SOIL COVER

VARIES TYP. 12' MIN. AS ROOM ALLOWS

18" MIN. THICKNESS RIP RAP LAYER 6" MIN. THICKNESS BEDDING LAYER

FINAL COVER SYSTEM (DETAIL 1, OPTIONS 2 OR 3)

ASH FREE / EMBANKMENT SOIL SLOPE TO DRAIN

6

6-8 12-14

50' MIN.

Not to Scale

EXISTING SOIL EMBANKMENT

ASH

8 OZ/SY NON-WOVEN GEOTEXTILE

MATCH FINAL COVER SYSTEM SELECTION GCL (OPTION 2) OR BENTONITE BACKED TEXTURED GEOMEMBRANE (OPTION 3) 12" MIN.

OPTIONS 2 OR 3: GCL OR BENTONITE BACKED GEOMEMBRANE

5

14

VERIFIED CLEAN SUBGRADE

7

RIP RAP LINED DISCHARGE STRUCTURE

6-8 14

BARRIER SOIL LAYER K 1X10-7 CM/SEC

,1'(3(1'(1&( 32:(5 /,*+7

5' MIN. GEOTEXTILE OVERLAP PAST RIP RAP / BEDDING LAYER

TYPICAL ACCESS ROAD

SEDIMENTATION BASIN LINER SYSTEM

14 14

Not to Scale

Not to Scale

NOTES: 1. RIP RAP AND BEDDING LAYER GRADATION IS SPECIFIED IN SPECIFICATIONS.

ASH IN-PLACE CLOSURE

CLEAN CLOSURE

TIE-IN TO EXISTING GRADE

ACCESS ROAD ON TOP OF BERM (SEE DETAIL 6) FIELD ADJUST FINAL BERM HEIGHT TO BE ABOVE ADJACENT COVERED ASH ELEVATIONS

2 TYP. 2 TYP. 1

ASH

1 2 TYP. 1

CLEAN COMPACTED CLAY (MIN. 95% STANDARD PROCTOR)

SEDIMENTATION BASIN LINER SYSTEM (SEE DETAIL 7)

TEMPORARY ASH SLOPE NORTH DIVIDER BERM NOTES: 1. CONSTRUCTION OF DIVIDER BERM WILL REQUIRE REMOVAL OF ASH. 2. NEW SEDIMENTATION BASIN CLEAN COMPACTED CLAY IN CLEAN CLOSURE AREA TO BE CONSTRUCTED OF OFF SITE CLAY OR CLEAN CLAY FROM EXISTING BERMS. 3. BERM IN ASH IN PLACE CLOSURE AREA CAN BE CONSTRUCTED USING COMPACTED ASH, CLAY LINER FROM CLEAN CLOSURE AREA, CLAY FROM EMBANKMENTS, OR OFF SITE SOURCES.

APPROXIMATE ELEVATION 747'

VERIFIED CLEAN SUBGRADE

8 6,8,11

14

SEDIMENTATION BASIN Not to Scale

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EXISTING GRADE NO ASH PRESENT

FINAL COVER SYSTEM (SEE DETAIL 1) BACKFILLED WITH COMPACTED ASH, ASH CLAY LINER, OR CLEAN CLAY (MIN. 90% 2 TYP. STANDARD 1 PROCTOR)

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12" MIN.

18" MIN. BARRIER SOIL LAYER K 1X10-7 CM/SEC

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6" MIN. THICKNESS BEDDING LAYER

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ASH

12" MIN. THICKNESS GRAVEL (REUSED FROM DECONSTRUCTION OF EXISTING ROADS) NON-WOVEN GEOTEXTILE FILTER FABRIC

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NEW GRADE

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FINAL GRADE

CLEAN CLOSURE AREA NOTES: 1. REMOVE ASH AND EXISTING ASH IMPOUNDMENT LINER, IF PRESENT, TO BASE OF ASH OR LINER, WHICHEVER IS LOWER. 2. IF REQUIRED, EXCAVATE NATIVE CLAYS TO NEW DESIGN GRADES. 3. NEW 12" BASIN LINER CAN BE CONSTRUCTED USING NATIVE CLAYS OR CLEAN EMBANKMENT CLAYS IF CAN ACHIEVE COMPACTION TO REQUIRED K 1X10-7 CM/SEC.

Not to Scale 6-8 15

DETAIL 9 AND 10 NOTES: 1. INDEPENDENCE POWER & LIGHT TO REMOVE ELECTRICAL PUMPS AND CONTROLS. 2. AFTER WATER IS REMOVED FROM BOTTOM ASH POND, VALVES AND PIPING TO BE REMOVED. 3. VALVES WILL BE RETURNED TO INDEPENDENCE POWER & LIGHT. 4. THREE PIPES FROM BOTTOM ASH POND TO BE GROUTED CLOSED. 5. CONTRACTOR TO REMOVE BUILDING AND FILL CONCRETE FOUNDATION WITH CRUSHED ROCK. 7311 W. 130th St, Ste. 100 Overland Park, Kansas 66213 PH. (913) 681-0030 FAX. (913) 681-0012

PUMP HOUSE PIPING DECOMMISIONING

SCS AQUATERRA

Not to Scale

15

21500 E. TRUMAN RD, INDEPENDENCE, MISSOURI

BLUE VALLEY POWER STATION

INDEPENDENCE POWER & LIGHT

ASH IMPOUNDMENT CLOSURE CONSTRUCTION PLANS

DETAILS 3 - PUMP HOUSE AND PIPING

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6-8 15

9 10 PUMP HOUSE DECOMMISIONING

15