SITE BOUNDARY

ACADEMY ST.

MAPLE ST.

AL

DE

R A

VE

.

KIN

CA

ID

A

VE

.

22x3

4 ---

USE

R: K

Li --

- ATT

ACHE

D XR

EF'S

: ST

AMP-

RMD

---

ATTA

CHED

IMAG

ES:

Was

hingto

n;DR

AWIN

G NA

ME: N

:\PRO

JECT

S\Pr

ojects

\Sum

ner\C

AD D

rawi

ngs\D

ESIG

N DR

AWIN

GS\S

EPA\

G-0

Title

She

et.dw

g ---

PLOT

DAT

E: Ju

ne 18

, 201

8 - 9:

20AM

--- L

AYOU

T: 22

X34L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

TITLE SHEET

302149.TA01

G-0 Title Sheet.dwg

K. LI

A. ANG

D. RATHNAYAKE

G-0

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATON DR

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

FORMER SUMNER TOWING PROPERTY CLEANUP

810 ALDER AVENUE

SUMNER, WASHINGTON

REMEDIAL EXCAVATION AND AS/SVE SYSTEM INSTALLATION

PREPARED FOR:

PREPARED BY:

CITY OF SUMNER

1104 MAPLE STREET, SUITE 242

SUMNER, WASHINGTON

TRC ENVIRONMENTAL CORPORATION

19874 141

ST

PLACE N.E.

WOODINVILLE, WASHINGTON

VICINITY MAP (NOT TO SCALE) SITE MAP (NOT TO SCALE)

SHEET INDEX

SHEET

NUMBER

SHEET TITLE

G-0 TITLE SHEET

C-1 EXISTING SITE CONDITIONS

C-2 EXCAVATION PLAN

C-3 AS/SVE WELL INSTALLATION PLAN

C-4

GRADING, PAVING, FENCING, AND STRIPING PLAN

EC-1 TEMPORARY EROSION CONTROL PLAN

EC-2 TEMPORARY EROSION CONTROL DETAILS

EC-3 TEMPORARY EROSION CONTROL DETAILS

NOTE: THESE PLANS ARE ACCOMPANIED BY A REPORT OF THE SAME

TITLE THESE DOCUMENTS ARE INTERRELATED AND ARE

INTENDED TO BE USED TOGETHER. THESE DOCUMENTS ARE

INTENDED TO BE USED FOR REGULATORY PURPOSES ONLY.

NOT FOR CONSTRUCTION

R.M.D. RATHNAYAKE

06/15/2018

License Exp. 05/13/2019

VP-8

ACADEMY STREET

7

1

7

1

71

71

7

1

7

1

7

1

7

1

7

2

7

2

7

2

7

2

7

3

7

3

70

7

0

ASPHALT

ASPHALT

ASPHALT

UNPAVED

CURRENT GATE

ACCCESS

VP-7

ELHI HILL HIGH SCHOOL /

FORMER FRONTIER BANK

HYD

HYD

MW-26

MW-27

MW-9

MW-11

MW-5

MW-8

MW-10

MW-18

MW-4

MW-1

MW-3*

MW-2

MW-6

MW-10R

MW-7

POWER POLE &

GUY WIRE

PARKING SIGN

CONC. PAD

PARKING

LOT LIGHT

FOUND 1-1/2"

REBAR & ALUM.

CAP W/PUNCH

CB TYPE 1

RIM=69.33'

IE 6" DI E=

(IN 8" CNC PIPE

W/TEE) 68.34' & 67.88'

PARKING SIGN

PARKING SIGN

8" CLEANOUT

ORNAMENTAL

LIGHT

LIGHT

JBOX

JBOX

ORNAMENTAL

LIGHT

LIGHT

JBOX

FOUND 2" SURFACE

BRASS W/"X"

INTX. KINCAID AVE

& ACADEMY ST.

FOUND MONUMENT IN CASE

3/4" BRASS W/"X"

DOWN 0.35'

INTX. ALDER AVE

& ACADEMY ST.

FOUND MONUMENT IN CASE

2-1/2" DIA. LEAD W/"X"

DOWN 0.70'

INTX. KINCAID AVE

& MAPLE ST.

FOUND MONUMENT IN CASE

HOLE IN CONCRETE

DOWN 0.70'

INTX. ALDER AVE

& MAPLE ST.

MAPLE STREET

KIN

CA

ID

A

VE

NU

E

ALD

ER

A

VE

NU

E

ACADEMY STREET

CB TYPE 1

RIM=71.47'

IE 6" DI NW=

(IN 8" CNC PIPE

W/TEE)

69.69' & 69.15'

LIMITS OF WORK

LIMITS OF WORK

CHAIN LINK

FENCE

RETAINING WALL

CHAIN LINK

FENCE

RETAINING WALL

7

1

22x3

4 ---

USE

R: K

Li --

- ATT

ACHE

D XR

EF'S

: Ma

ster P

lanim

etrics

; STA

MP-R

MD -

-- A

TTAC

HED

IMAG

ES:

Was

hingto

n;DR

AWIN

G NA

ME: N

:\PRO

JECT

S\Pr

ojects

\Sum

ner\C

AD D

rawi

ngs\D

ESIG

N DR

AWIN

GS\S

EPA\

C-1

Exis

ting S

ite C

ondit

ions.d

wg --

- PLO

T DA

TE: J

une 1

5, 20

18 -

5:51P

M ---

LAYO

UT: 2

2X34

L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

EXISTING SITE CONDITIONS

302149.TA01

C-1 Existing Site Conditions.dwg

K. LI

A. ANG

D. RATHNAYAKE

C-1

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATION DR

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

30 60

SCALE IN FEET

0

LEGEND

CAUTION: THIS PLAN IS REDUCED TO A 1:2 SCALE

NOTES

1. WELL LOCATIONS AND ON SITE STORM DRAIN

CATCH BASIN LOCATIONS AS PROVIDED BY

ROTHMAN AND ASSOCIATES.

2. BASEMAP, PROPERTY LINES, AND MONUMENT

INFORMATION AS PRESENTED IN THE LANKTREE

LAND SURVEYING, INC. BOUNDARY AND

TOPOGRAPHIC SURVEY DATED APRIL 15, 2016.

THE CONTRACTOR SHALL HAVE A STATE OF

WASHINGTON LICENSED SURVEYOR LAY OUT AND

STAKE THE PROPERTY LINE, EXISTING SITE

FEATURES, AND EXCAVATION BOUNDARIES.

3. ALL WORK WILL BE CONDUCTED WITHIN THE

LIMITS OF WORK.

PROPERTY BOUNDARY

LIMITS OF WORK

EXISTING FENCE

EXISTING RETAINING WALL

GROUNDWATER MONITORING WELL

TEMPORARY MONITORING WELL

CATCH BASIN

EXISTING ENTRANCE

R.M.D. RATHNAYAKE

06/15/2018

License Exp. 05/13/2019

71

7

1

71

71

7

1

7

1

7

1

7

1

7

2

7

2

7

2

70

7

0

ASPHALT

ASPHALT

N:686013.0408

E:1207635.4604

N:686088.8442

E:1207727.1914

N:686011.7210

E:1207705.3737

N:686090.5482

E:1207636.9235

CUT AND CAP

STORM DRAIN LINE

AS NECESSARY

DEMO STORM

DRAIN

EXCAVATION AREA

15' BGS (SEE NOTES

1 AND 2)

PROTECT IN

PLACE

PROTECT IN

PLACE

PROTECT IN

PLACE

LIMITS OF WORK

LIMITS OF WORK

N:686047.6694

E:1207726.4141

UNDERGROUND

POWER AND

TELECOM,

PROTECT IN

PLACE (SEE

NOTE 3)

SITE ACCESS

SITE ACCESS

22x3

4 ---

USE

R: K

Li --

- ATT

ACHE

D XR

EF'S

: Ma

ster P

lanim

etrics

; STA

MP-R

MD -

-- A

TTAC

HED

IMAG

ES:

Was

hingto

n;DR

AWIN

G NA

ME: N

:\PRO

JECT

S\Pr

ojects

\Sum

ner\C

AD D

rawi

ngs\D

ESIG

N DR

AWIN

GS\S

EPA\

C-2

Exc

avati

on P

lan.dw

g ---

PLOT

DAT

E: Ju

ne 15

, 201

8 - 5:

53PM

--- L

AYOU

T: 22

X34L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

EXCAVATION PLAN

302149.TA01

C-2 Excavation Plan.dwg

K. LI

A. ANG

D. RATHNAYAKE

C-2

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATION DR

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

10 20

SCALE IN FEET

0

LEGEND

PROPERTY BOUNDARY

LIMITS OF WORK

EXTENTS OF SUBSURFACE

DEMOLITION

PROPOSED EXCAVATION BOUNDARY

NORTHING EASTING COORDINATES

CAUTION: THIS PLAN IS REDUCED TO A 1:2 SCALE

NOTES

1. CONTRACTOR TO SEGREGATE TOP 5 FEET OF

EXCAVATED MATERIAL FOR TESTING AND

POTENTIAL RE-USE AS EXCAVATION BACKFILL

MATERIAL.

2. ONLY LATERAL AND VERTICAL REMEDIAL

EXCAVATION EXTENTS ARE SHOWN.

CONTRACTOR TO DETERMINE MEANS AND

METHODS TO MAINTAIN A STABLE EXCAVATION

AND PROTECT SUBSURFACE UTILITIES.

3. UTILITIES TO REMAIN IN SERVICE AND

PROTECTED IN PLACE DURING EXCAVATION.

4. CONTRACTOR SHALL PROTECT IN PLACE ALL

SURFACE AND SUBSURFACE UTILITIES NOT

NECESSARY FOR DEMOLITION IN CONTRACTORS

PROPOSED EXCAVATION PLAN

5. ALL WORK WILL BE CONDUCTED WITHIN THE

LIMITS OF WORK.

6. EXCAVATION WILL BE BACKFILLED WITH CLEAN

IMPORT FILL AND EXCAVATED SOIL TESTED AND

APPROVED FOR ON-SITE RE-USE AND

COMPACTED TO PROJECT SPECIFICATIONS.

N:686013.0408

E:1207635.4604

06/15/2018

R.M.D. RATHNAYAKE

License Exp. 05/13/2019

AIR SPARGE WELLS

SPACED AT 27 FEET ON

A TRIANGULAR GRID

ASPHALT

ASPHALT

UNPAVED

KIN

CA

ID

A

VE

NU

E

AS02

AS03

AS04AS05

AS06

AS07

AS08

AS14

AS13

AS12

AS09

AS10

AS11

AS15

AS16

AS17AS18

AS19

AS20

AS21

AS27

AS34

AS33

AS26

AS32

AS31

AS25

AS24AS23

AS30

AS29

AS22

AS28

SVE01

SVE07

SVE02

SVE03

SVE04

SVE05

SVE06

SVE08

LIMITS OF WORK

LIMITS OF WORK

SVE01

AS02

AS03

AS04AS05

AS06

AS07

AS08

AS14

AS13

AS12

AS09

AS10

AS11

AS15

AS16

AS17AS18

AS19

AS20

AS21

AS27

AS34

AS33

AS26

AS32

AS31

AS25

AS24AS23

AS30

AS29

AS22

AS28

AIR SPARGE AND

SVE UTILITY

TRENCH

AIR SPARGE WELLS

SPACED AT 27 FEET ON

A TRIANGULAR GRID

SVE07

MW-27

SVE02

SVE03

MW-26

MW-10R

MW-9

SVE04

SVE05

SVE06

SVE08

AS01

MW-11

MW-10

MW-18

4-INCH SCH

40 PVC

4-INCH SCH

40 PVC

4-INCH SCH

40 PVC

4-INCH SCH

40 PVC

4-INCH SCH

40 PVC

2-INCH SCH

40 PVC

2-INCH SCH

40 PVC

2-INCH SCH

40 PVC

2-INCH SCH

40 PVC

2-INCH SCH

40 PVC

2-INCH SCH

40 PVC

MULTIPLE

4-INCH SCH

40 PVC

REMEDIATION

COMPOUND

LIMITS OF WORK

AIR SPARGE

UTILITY

TRENCH ONLY

EXISTING

AIR SPARGE

WELL

AIR SPARGE

AND SVE

UTILITY

TRENCH

SITE ACCESS

SITE ACCESS

10'

50'

8'

22x3

4 ---

USE

R: K

Li --

- ATT

ACHE

D XR

EF'S

: Ma

ster P

lanim

etrics

; STA

MP-R

MD -

-- A

TTAC

HED

IMAG

ES:

Was

hingto

n;DR

AWIN

G NA

ME: N

:\PRO

JECT

S\Pr

ojects

\Sum

ner\C

AD D

rawi

ngs\D

ESIG

N DR

AWIN

GS\S

EPA\

C-3

AS-

SVE

Well

Insta

llatio

n Plan

.dwg -

-- PL

OT D

ATE:

June

15, 2

018 -

5:54

PM --

- LAY

OUT:

22X3

4L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

AS/SVE WELL INSTALLATION PLAN

302149.TA01

C-3 AS-SVE Well Installation Plan.dwg

K. LI

A. ANG

D. RATHNAYAKE

C-3

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATION DR

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

10 20

SCALE IN FEET

0

LEGEND

PROPERTY BOUNDARY

LIMITS OF WORK

SOIL VAPOR EXTRACTION WELL

LOCATION

AIR SPARGE WELL LOCATION

CONVERTED SVE WELL LOCATION

(2 INCH)

EXISTING MONITORING WELL (2 INCH)

CAUTION: THIS PLAN IS REDUCED TO A 1:2 SCALE

MW-26

SVE01

AS01

NOTES

1. ALL SVE LATERALS ARE 2 INCHES AND MAIN

HEADERS ARE 4 INCHES.

2. ALL WORK WILL BE CONDUCTED WITHIN THE

LIMITS OF WORK.

3. TYPICAL TRENCH IS 4 FEET WIDE AND 3 FEET

DEEP AND WILL BE RESTORED AS PAVED

SURFACE (3 INCH ASPHALT CONCRETE OVER 4

INCH AGGREGATE BASE).

R.M.D. RATHNAYAKE

06/15/2018

License Exp. 05/13/2019

MW-10

7

2

7

3

70

70

ASPHALT

ASPHALT

ASPHALT

ELHI HILL HIGH SCHOOL /

FORMER FRONTIER BANK

HYD

HYD

KIN

CA

ID

A

VE

NU

E

ALD

ER

A

VE

NU

E

ACADEMY STREET

INSTALL CB TYPE 1

PER CITY OF SUMNER

SPECIFICATION 5.0

ASPHALT

CONCRETE (N)

7

0

7

1

7

1

7

1

7

1

71

7

1

71

71

7

1

7

1

7

1

7

2

7

2

72

ASPHALT

CONCRETE (N)

MATCH

EXISTING

ASPHALT

CONCRETE (N)

MATCH

EXISTING

SVE01

AS02

AS03

AS04

AS05

AS06

AS07

AS08

AS14

AS13

AS12

AS09

AS10

AS11

AS15

AS16

AS17AS18

AS19

AS20

AS21

AS27

AS34

AS33

AS26

AS32

AS31

AS25

AS24AS23

AS30

AS29

AS22

AS28

SVE07

MW-27

SVE02

SVE03

MW-26

MW-10R

MW-9

SVE04

SVE05

SVE06

SVE08

AS01

MW-11

MW-10

MW-18

FENCE (N)

10'

50

'

8'

GATE

20'

60

'

REMEDIATION

COMPOUND

INSTALL NEW

STORM DRAIN

LINE PER CITY

OF SUMNER

SPECIFICATION

5.0

LIMITS OF WORK

LIMITS OF WORK

RETAINING

WALL (E)

ASPHALT

CONCRETE (N)

20'

22x3

4 ---

USE

R: K

Li --

- ATT

ACHE

D XR

EF'S

: Ma

ster P

lanim

etrics

; STA

MP-R

MD -

-- A

TTAC

HED

IMAG

ES:

Was

hingto

n;DR

AWIN

G NA

ME: N

:\PRO

JECT

S\Pr

ojects

\Sum

ner\C

AD D

rawi

ngs\D

ESIG

N DR

AWIN

GS\S

EPA\

C-4

Gra

ding,

Pavin

g, Fe

ncing

, and

Strip

ing P

lan.dw

g ---

PLOT

DAT

E: Ju

ne 15

, 201

8 - 6:

13PM

--- L

AYOU

T: 22

X34L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

GRADING, PAVING, FENCING, AND STRIPING PLAN

302149.TA01

C-4 Grading, Paving, Fencing, and Striping Plan.dwg

K. LI

A. ANG

D. RATHNAYAKE

C-4

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATION DR

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

20 40

SCALE IN FEET

0

CAUTION: THIS PLAN IS REDUCED TO A 1:2 SCALE

LEGEND

PROPERTY BOUNDARY

FENCE

SOIL VAPOR EXTRACTION WELL

LOCATION

AIR SPARGE WELL LOCATION

CONVERTED SVE WELL LOCATION

(2 INCH)

EXISTING MONITORING WELL (2 INCH)

NEW PARKING STRIPING

NEW ENTRANCE

NOTES

1. ALL WORK WILL BE CONDUCTED WITHIN THE

LIMITS OF WORK.

2. SITE TO BE RESTORED AS PAVED PARKING LOT.

3. NEW ASPHALT PAVING ELEVATION TO MATCH

EXISTING AT THE LIMITS OF RESTORATION.

4. REMEDIATION COMPOUND GATE LOCATIONS

MIGHT BE ADJUSTED AS NECESSARY DURING

CONSTRUCTION.

MW-24

SVE01

AS01

R.M.D. RATHNAYAKE

06/15/2018

License Exp. 05/13/2019

MW-10

VP-8

ACADEMY STREET

7

1

7

1

71

71

7

1

7

1

7

1

7

1

7

1

7

2

7

2

7

2

7

2

7

3

7

3

70

7

0

ASPHALT

ASPHALT

ASPHALT

UNPAVED

CURRENT GATE

ACCCESS

VP-7

ELHI HILL HIGH SCHOOL /

FORMER FRONTIER BANK

HYD

HYD

POWER POLE &

GUY WIRE

PARKING SIGN

CONC. PAD

PARKING

LOT LIGHT

FOUND 1-1/2"

REBAR & ALUM.

CAP W/PUNCH

CB TYPE 1

RIM=69.33'

IE 6" DI E=

(IN 8" CNC PIPE

W/TEE) 68.34' & 67.88'

PARKING SIGN

PARKING SIGN

8" CLEANOUT

ORNAMENTAL

LIGHT

LIGHT

JBOX

JBOX

ORNAMENTAL

LIGHT

LIGHT

JBOX

FOUND 2" SURFACE

BRASS W/"X"

INTX. KINCAID AVE

& ACADEMY ST.

FOUND MONUMENT IN CASE

3/4" BRASS W/"X"

DOWN 0.35'

INTX. ALDER AVE

& ACADEMY ST.

FOUND MONUMENT IN CASE

2-1/2" DIA. LEAD W/"X"

DOWN 0.70'

INTX. KINCAID AVE

& MAPLE ST.

FOUND MONUMENT IN CASE

HOLE IN CONCRETE

DOWN 0.70'

INTX. ALDER AVE

& MAPLE ST.

MAPLE STREET

KIN

CA

ID

A

VE

NU

E

ALD

ER

A

VE

NU

E

ACADEMY STREET

CB TYPE 1

RIM=71.47'

IE 6" DI NW=

(IN 8" CNC PIPE

W/TEE)

69.69' & 69.15'

LIMITS OF WORK

LIMITS OF WORK

CHAIN LINK

FENCE

RETAINING WALL

CHAIN LINK

FENCE

RETAINING WALL

TEMPORARY

CONSTRUCTION

ACCESS

TEMPORARY

CONSTRUCTION

ACCESS

RETAINING WALL

SILT

FENCE

COMPOST

SOCK

COMPOST

SOCK

STORM DRAIN

INLET PROTECTION

STORM DRAIN

INLET PROTECTION

1

EC-2

3

EC-3

4

EC-3

3

EC-3

4

EC-3

STORM DRAIN

INLET PROTECTION

4

EC-3

2

EC-2

STORM DRAIN

INLET PROTECTION

4

EC-3

1

EC-2

COMPOST

SOCK

3

EC-3

MW-26

MW-27

MW-9

MW-11

MW-10

MW-18

MW-10R

22x3

4 ---

USE

R: K

Li --

- ATT

ACHE

D XR

EF'S

: Ma

ster P

lanim

etrics

; STA

MP-R

MD -

-- A

TTAC

HED

IMAG

ES:

Was

hingto

n;DR

AWIN

G NA

ME: N

:\PRO

JECT

S\Pr

ojects

\Sum

ner\C

AD D

rawi

ngs\D

ESIG

N DR

AWIN

GS\S

EPA\

EC-

1 Tem

pora

ry Er

osion

Con

trol P

lan.dw

g ---

PLOT

DAT

E: Ju

ne 15

, 201

8 - 6:

20PM

--- L

AYOU

T: 22

X34L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

TEMPORARY EROSION CONTROL PLAN

302149.TA01

EC-1 Temporary Erosion Control Plan.dwg

K. LI

A. ANG

D. RATHNAYAKE

EC-1

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATION DR

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

30 60

SCALE IN FEET

0

LEGEND

CAUTION: THIS PLAN IS REDUCED TO A 1:2 SCALE

NOTES

1. WELL LOCATIONS AND ON SITE STORM DRAIN

CATCH BASIN LOCATIONS AS PROVIDED BY

ROTHMAN AND ASSOCIATES.

2. BASEMAP, PROPERTY LINES, AND MONUMENT

INFORMATION AS PRESENTED IN THE LANKTREE

LAND SURVEYING, INC. BOUNDARY AND

TOPOGRAPHIC SURVEY DATED APRIL 15, 2016.

THE CONTRACTOR SHALL HAVE A STATE OF

WASHINGTON LICENSED SURVEYOR LAY OUT AND

STAKE THE PROPERTY LINE, EXISTING SITE

FEATURES, AND EXCAVATION BOUNDARIES.

3. ALL WORK WILL BE CONDUCTED WITHIN THE

LIMITS OF WORK.

PROPERTY BOUNDARY

LIMITS OF WORK

EXISTING FENCE

EXISTING RETAINING WALL

GROUNDWATER MONITORING WELL

TEMPORARY MONITORING WELL

CATCH BASIN

R.M.D. RATHNAYAKE

06/15/2018

License Exp. 05/13/2019

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

22x3

4 ---

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etails

.dwg -

-- PL

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ATE:

June

15, 2

018 -

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- LAY

OUT:

22X3

4L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

TEMPORARY EROSION CONTROL DETAILS

302149.TA01

EC-2 Temporary Erosion Control Details.dwg

K. LI

A. ANG

D. RATHNAYAKE

EC-2

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATION DR

R.M.D. RATHNAYAKE

06/15/2018

License Exp. 05/13/2019

TEMPORARY CONSTRUCTION ACCESS1

EC-1

SILT FENCE2

EC-1

1.

2.

3.

5.

3" M

IN

.

4" M

AX

.

PROTECTED

AREA

DISTURBED

AREA

12

"

MIN

IM

UM

MINIMUM

8"

10' - 0"

30' - 0"

40' - 0"

20' - 0"

SEE COMPOST SOCK

SPACING TABLE

SPACING VARIES (TYP.)

4.

BIODEGRADABLE

EROSION CONTROL BLANKET ~

SEE NOTE 4

EROSION CONTROL BLANKET ~

SEE NOTE 4

COMPOST SOCK ~

SEE NOTE 1

8" DIAMETER

COMPOST SOCK SPACING TABLE

1H : 1V

2H : 1V

3H : 1V

4H : 1V

L

E

N

G

T

H

V

A

R

I

E

S

1

2

"

M

I

N

I

M

U

M

O

V

E

R

L

A

P

(

T

Y

P

.

)

6.

7.

S

P

A

C

I

N

G

3

6

"

O

.

C

.

M

A

X

.

ALLOWABLE ALTERNATIVE

TIE-DOWN METHOD

CONTOUR LINE

(TYP.)

EXCESS SOCK MATERIAL,

DRAWN IN AND TIED OFF

SECURELY (TYP.)

ANGLE TERMINAL END UPHILL 24" to 48"

TO PREVENT FLOW AROUND SOCK

(TYP.)

COMPOST SOCK (TYP.) ~

SEE DETAIL

STAGGER

OVERLAPS

(TYP.)

8.

COMPOST SOCK SHALL BE IN ACCORDANCE WITH STANDARD SPECIFICATION

9-14.5(6).

SECURELY KNOT EACH END OF COMPOST SOCK. OVERLAP ADJACENT COMPOST

SOCK ENDS 12" BEHIND ONE ANOTHER AND SECURLEY TIE TOGETHER.

COMPOST TO BE DISPERSED ON SITE AS DETERMINED BY THE ENGINEER,

WHEN VEGETATION COVERS THE SURFACE.

IF EROSION CONTROL BLANKET IS SPECIFIED, PLACE COMPOST SOCK ON TOP

OF BLANKET. SEE STANDARD PLAN I-60.10.

INSTALL COMPOST SOCK PERPENDICULAR TO FLOW ALONG CONTOURS.

REMOVE SEDIMENT FROM THE UP SLOPE SIDE OF THE COMPOST SOCK

WHEN ACCUMULATION HAS REACHED 1/2 OF THE EFFECTIVE HEIGHT OF THE

COMPOST SOCK.

PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION

8-01.3(15).

REFER TO STANDARD SPECIFICATION 8-01.3(16) FOR REMOVAL.

2" × 2" × 24" UNTREATED

WOODEN STAKE (TYP.)

2" × 2" × 24" UNTREATED

WOODEN STAKE

NOTES

SOURCE: WASHINGTON STATE DEPARTMENT OF TRANSPORTATION STANDARD PLAN I-30.40-01

SIZE THE BELOW INLET GRATE DEVICE (BIGD) FOR THE STORM WATER STRUCTURE IT

WILL SERVICE.

THE BIGD SHALL HAVE A BUILT-IN HIGH-FLOW RELIEF SYSTEM (OVERFLOW BYPASS).

THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE

COLLECTED MATERIAL.

PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(15).

NOTES

1.

2.

3.

4.

OVERFLOW BYPASS

5" MAX.

TRIM

GRATE FRAME

FILTERED

WATER

SEDIMENT

AND DEBRIS

DRAINAGE GRATE

BELOW INLET GRATE DEVICE

OVERFLOW BYPASS (TYP.)

DRAINAGE GRATE

~ RECTANGULAR GRATE SHOWN

ISOMETRIC VIEW

RETRIEVAL SYSTEM (TYP.)

BELOW INLET GRATE DEVICE

NOT TO SCALE

SOURCE: WASHINGTON STATE DEPARTMENT OF TRANSPORTATION STANDARD PLAN I-40.20-00

19874 141st Place N.E.Woodinville, WA 98072

Phone: 425.489.1938www.trcsolutions.com

22x3

4 ---

USE

R: K

Li --

- ATT

ACHE

D XR

EF'S

: ST

AMP-

RMD

---

ATTA

CHED

IMAG

ES:

Was

hingto

n;DR

AWIN

G NA

ME: N

:\PRO

JECT

S\Pr

ojects

\Sum

ner\C

AD D

rawi

ngs\D

ESIG

N DR

AWIN

GS\S

EPA\

EC-

3 Tem

pora

ry Er

osion

Con

trol D

etails

.dwg -

-- PL

OT D

ATE:

June

15, 2

018 -

3:59

PM --

- LAY

OUT:

22X3

4L

DATE:

DRAWN BY:

CHECKED BY:

APPROVED BY:

PROJECT:

PROJ. NO.:

FILE NO.:

TITLE:

SEAL:

DATE:

PROFESSIONAL ENGINEER:

Version: 2017-10-21

REVISIONDATENO. BYAPP'D.

CITY OF SUMNER

FORMER SUMNER TOWING SITE

810 ALDER AVENUE, SUMNER, WASHINGTON

TEMPORARY EROSION CONTROL DETAILS

302149.TA01

EC-3 Temporary Erosion Control Details.dwg

K. LI

A. ANG

D. RATHNAYAKE

EC-3

JUNE 2018

1 K. LI 6/15/18 SEPA APPLICATION DR

R.M.D. RATHNAYAKE

06/15/2018

License Exp. 05/13/2019

TEMPORARY CONSTRUCTION ACCESS3

EC-1

STORM DRAIN INLET PROTECTION4

EC-1