J02 Septic Design and County Permit.pdf

COWLITZ COUNTY

HEAL TH DEPARTMENT

207 FOURTH AVE. NORTH, KELSO, WA 98626

Phone (360) 414-5599 • Fax (360) 425-7531 • www.co.cowlitz.wa.us/health

Septic System Permit Status: Permit Issued

Record Number: EHU-04-22-0418

Project Address: 440 MULL RD, CASTLE ROCK, WA 98611

Project Parcel: W 12708002

Applicant: AJ & AMANDA MOORE

PO BOX 1686

CASTLE ROCK, WA 98611

GENERAL

Designer: TRAVIS BUCK

SYSTEM INFORMATION

Business Name: ADV AN CED SEPTIC CONSUL TING Phone Number: 3604335476 Email: travis@kalama.com

Scope: Residential

Installation: New, Treatment Level: E Drainfield Type: Pressure Distribution, Pre-Treatment: No Number of Bedrooms: 4, Design Flow (GPO): 480

PRIMARY DRAINFIELD

Drainfield Specifications Total Drainline Length (Ft): 240

Drainline Width (Ft): 3 Drainline Area (Sq. Ft.): 720

Minimum Drainline Depth (Inches): 6 Maximum Drainline Depth (Inches): 15

Reduction Amount: 40%

Capping Fill (Inches): 12

RESERVE DRAINFIELD

Treatment Level: E

Drainfield Type: Pressure Distribution Land Area (Sq. Ft.): 3000

Date: 06/1 3/2022

Advanced Septic Consulting Inc.

Standard Pressure Distribution System r 440 Mull Rd.

~\ f PROVE[D.·o· --April 26, 2022

Project Number: 21-334

Customer: Al & Amanda Moore, PO Box 1686 Castle Rock, W - \\ 981\L I u n JU 1 3 2072 ..

Project Location: 440 Mull Rd. Castle Rock, Washington 98611

Section: 27 Township: 9N Range: 2W Pare Lrrz C(n.Jfi\.ffY Acres: 19.47 No. Bedr~~f\L TH DEPARYME~Y' Parcel Number: WJ2708002

Type of Water Supply: Proposed Well

Septic Tank Size: 2 Chamber- 1,250 Gal . Pump Chamber Size: Single Chamber 1,500 Gal .

Lineal Feet of Drain Line: 240' Trench Width: 36" Orifice Size: 3/16"

Minimum Trench Depth: 6" (Measured from the downhill side of the trench)

Maximum Trench Depth: 15" (Measured from the uphill side of the trench)

Orifice Spacing: 5'

I have taken a 40% reduction in the size of the drain field for the use of gravelless chambers. I have shown the unused area on the site plan in the form ofreduction lines. The installed septic area will consist of 3 - 80' drain lines. The actual installed drain field will total 720 sq. ft. I have shown an additional 480 sq. ft.

as reduction lines for a total primary septic area of 1,200 sq. ft.

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EHU 04-22-0418

Iii

Advanced Septic Consulting Inc.

~~:;~::"::,,. 21-334 t\~~PROVED Customer: AJ & Amanda Moore, PO Box 1686 Castle Rock, Washington 9 11 \ \

· u JUN 1 3 ?022 Project Location: 440 Mull Rd. Castle Rock, Washington 98611

Section: 27 Township: 9N

Parcel Number: W 12708002

Range: 2W

Acres : 19.47 No. Bedrooms: 4 GOWlJTZ COUNTY

HEAL II H DEPARTMENT

Distance to Water Supply: Proposed Well 185 ' +/- South of Proposed Septic Area

Site Characteristics:

The site is located within USDA-NRCS mapping unit 23 - Centralia Silt Loam. Typical depth to the water table is greater than 80" . The site is moderately well drained in the septic areas with moderate mottling and a restrictive layer noted ranging from 39 to 44" . Typical slope ranges from 20 to 30%. The proposed septic area is on a west facing slope with a slope ranging from 16 to 20%. Vegetation in the septic area mainly consists of brush & small fir trees.

Soil Evaluation:

Depth Soil ~ Structure Color Roots Mottling

Test Hole #1 0-8" SiL 5 gr, m 10yr4/3 m/m, f None 8-39" siCL 5 2, m, sbk !0yr5/4 f/m, f None 39-43" CL 7 1, m, sbk Mixed None Moderate

Test Hole #2 0-8" SiL 5 gr, m 10yr4/3 m/m, f None 8-39" siCL 5 2, m, sbk 10yr5/4 f/m, f None 39-43" CL 7 1, m, sbk Mixed None Moderate

Test Hole #3 0-10" SiL 5 gr, m !0yr4/3 m/m, f None 10-44" siCL 5 2, m, sbk 10yr5/4 f/m, f None 44-48" CL 7 I, m, sbk Mixed None Moderate

Test Hole#4 0-8" SiL 5 gr, m l0yr4/3 m/m, f None 8-39" siCL 5 2, m, sbk 10yr5/4 f/m, f None 39-43" CL 7 1, m, sbk Mixed None Moderate

Design Requirements:

Based upon the evaluation performed on August 9, 2021 it is my determination that the primary area is adequate for the use of a Standard Pressure Distribution system meeting treatment level E to service the on-site septic needs of the future home.

The primary area will require 1200 sq. ft. of drain field and 3,000 sq. ft. ofland area.

The reserve area has been designated for the use of a Standard Pressure Distribution system meeting treatment level E and will require 1,200 sq. ft. of drain field and 3,000 sq. ft. of land area.

Other comments or concerns: The soil logs included with this design have been approved under permit number EHU-09-21-0999 on September 27, 2021.

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• . If~ JUN 1 3 2022 IY

Adv ds ~c l -~OWLrrz COUNTY ance eptlc onsu ti ~t.7'H DEPART· Project Number: 21-334 Aj & Amanda, 440 Mull Rd. Castle Rock, Washington 98611 ' MENT

Drain Line Length (1) (feet) 80 I mel T s ort Pipe (gals)

Drain Line Length (2) (feet) 80 Volume I a ·f I g s) .1

Drain Line Length (3) (feet) 80 Volume in Drain Lines (gals) 18.72

Drain Line Length (4) (feet) 0 Total Volume Before Manifold (gals) 8.58

Drain Line Length (5) (feet) 0 Total Volume After Manifold (gals) 1------..::;........;_.;...;._...;._ ____ ----'~---

18.88

Drain Line Length (6) (feet)

Drain Line Pipe Class

**Pumps may be subsituted but must have the ability to meet or exceed the specified flow and total dynammic head.

.:;- 60

QJ

Q.J

I 50 f-

-g' 40

QJ

I

.S? 30 E ro C:

6 20

0 L

0 10 20 30 40 50 60

Flow (gpm)

..,._System Curve

..,._ Design Point

..,._WTE3505

Notes:

1.) Operational pump curves have been estimated.

2.) Actual flow will be determined at system start up by performing a draw down test.

3.) Pump chart is for visual representation only. The calculated outputs were used to size pump.

2 Compartment 1,250 gal. Septic Tank Detail Manufactured by Sound Placement Services

.--------------·116"·----------------.

From Home-

Fro

Fasten Lids w/Stainless Screws

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~1 mHome-

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6 n

Top Vi00\'1'UTZ COUNTY

HEALTH DEPARTMENT

o Pump Chamber

Riser Lid

Install Risers To Surface Grade

I I

Filter Handle To Be Within 12" of Riser Li d

I c_ Effluent Filter-p

Air Gap_/; ~ [_ o Pump Chamber

Floating Mat --. ' f-r--

5 5.5"

AJ & Amanda Moore 440 Mull Rd.

Sludge

Castle Rock, Washington 98611 l - Flow Th rough _,,,/,- ----'

52.5"

Side View

Advanced Septic Consulting Inc. Design:

21-334

220 Hanson Rd. Kalama, Washington 98625 Ceff: 360-433-5476 E-Mail: dirtwhisperer@gmail.com Drawing: 1

#1' JI .. ·.tt, Date:

4/26/2022

NTS

Single Compartment 1,500 gal. Pump Chamber Detail Manufactured by Sound Placement Services

.---------------'116"---------------

Timed Dosing to be controlled by Orenco MVP S1 OM (or equal)

From Tank-

Estimated Timer Settings (Actual timer settings to be set at start up using a draw down test) Pump Estimated GPM - 28.32 Gallons Per Day- 480 Doses Per Day- 8 Dose Size- 60 Gallons Pump Off Time- 2 hrs 58 min Pump On Time- 2 min 7 sec Draw Down Per Dose- 2.14"

From Tank

52.5"

CO\N.LrrzT ~'o~~rv

HEALTH DEPARTMENT

Fasten Lids w/Stainless Screws

Splice Box

Install Risers To Surface Grade

Float Settings from Tank Lid Down

High Water Alarm Float - 17" Timer On/Off Float - 38" Redundant Off Float - 41"

28 Gallons Per Inch 1,614 Gallons Flooded

Side View

Webtrol WTE3505 High Head Pump (or Equal)

Flow Inducer (optional)

To Valve Box-

Combination Disconnect Flow Check Ball Valve

El(J'IRl:5 JJ-1 1- W 1,1,_, AJ & Amanda Moore Advanced Septic Consulting Inc. Design: Date:

440 Mull Rd. 220 Hanson Rd. Kalama, Washington 98625 r=

:....a 1-;:-3=34

19=1=20=2=1

'------l

Castle Rock, Washington 98611 Cell: 360-433-5476 E-Mail: dirtwhisperer@gmail.com Drawing: 2 NTS

Typical 3 Lateral _Valve Box

1.25" 0 PVC

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CD

AJ & Amanda Moore 440 Mull Rd.

Castle Rock, Washington 98611

---- From Pump Chamber

Ball Valves

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COWL,TZ COUMTY

HEALTH DEPAR'ff~'ilEuYr

Advanced Septic Consulting Inc. Design: Date:

220 Hanson Rd. Kalama, Washington 98625 r-=

2~1-~334~-+- 4=12=6=12=02=2'-----1

Cell: 360-433-5476 E-Mail: dirtwhisperer@gmail.com Drawing: 3 NTS

INFILTRATOR SYSTEMS INC. - QUICK4 PLUS STANDARD

Note: Drill 3/16" orifice holes in LOW PROFILE CHAMBER

TOP VIEW

End Plate

SIDE VIEW

each lateral in the 12 o'clock position on 5' centers. Cleanouts are to be installed at distal ends within the observation port and have a long sweep 90 with threaded cap for flushing. The last orifice hole is to be placed in the threaded cap within the observation port for start up. The orifice hole within the observation port is to be plugged with a stainless steel screw by the installer following the startup of the system. Drain lines are to be secured within chamber using non deteriorating heavy duty nylon zip ties with a minimum 120 lb. rating other approved method. Lateral are to be installed level and on contour.

Trenches are to be level to within ½" along the entire lateral.

,___ ______ 48" ______ __, Observation Port

Cleanout

Chicken wire is recommende,.______-beneath the infiltrator chambers to prevent rodent intrusion

~-a_,_," l-1a"-l

(EFFECTIVE LENGTH) End Plate

QUICK4 PLUS ALL-IN-ONE END CAP

• I 10.4" Effective Length*

MJ Observation Port l-13.3" --l

.,-r--"--.......,.._~==;H1-:-::~~,...__~24" Max Burial Depth Maximum and Minimum Trench Depth are measured from native soil down.

AJ & Amanda Moore 440 Mull Rd.

24"

J

Castle Rock, Washington 98611

,., 6" Minimum Burial Depth

:1 8"

Native Soil L Restri~ve Layer

Design: Date:

Advanced Septic Consulting Inc.

334 412612022 220 Hanson Rd. Kalama, Washington 98625 i-=-'-==-'----+---=-=-===-=-=:=..-------4

Cell: 360433-5476 E-Mail: dirtwhisperer@gmail.com Drawing: 4 NTS

EHU 0 &.-20. -o 1.11 (0. A WI-..J ~~ ... ...v

Please note: This site plan has been drawn for reference in assisting in locating the septic area and is in no way intended to be a survey. Water and utility line location have been estimated.

Locates must be obtained from all applicable agencies prior to any work being performed and must be maintained throughout the project.

Drain Lines 3@3' X 80'

1,296.20'

Observation Ports {3)

TH-2

(/~TH-1

_ i1-~ \ /Reserve Area A \ ao•x3a•

\ 9---TH-4

V 1.25" PVC

Sch40

{A p@~f)V~ D,25? Gal fl U .~ ""'ty eptic Tank

JUN 1 3 2022

11111111111 0' 60'

Driveway & Parking Area

Proposed Home Site

COWLiTZ COU~1TY

HEALTH DEPARTMENT

Proposed ---11~--w .ater Line

Installation Notes:

1.) Maintain 5' minimum setback from sidewall of drain line trenches to property lines or easements.

2.) Maintain 5' minimum setback from foundations to septic tank.

3.) Install drain lines on 7.5' average centers {6.5' centers minimum) running with the contours.

4.) A cleanout is to be placed on the sewer lateral at the edge of the foundation.

5.) Encase sewer lateral across driveway and parking areas.

6.) Do not install septic during heavy rainfall.

Tk>lliiS (:" .

NSEODESt

120'

AJ & Amanda Moore 440 Mull Rd.

Advanced Septic Consulting Inc. Design: Date:

21-334 4/26/2022 220 Hanson Rd. Kalama, Washington 98625 i=-:c..=.::c...:___-+-'-'-'=~===-----1

Castle Rock, Washington 98611 Cell: 360-433-5476 E-Mail: dirtwhisperer@gmaiLcom Drawing: 5 Scale: 1" = 60'

EHU

1,296.20'

Drain Lines </'ti..

\ yReserve Area

Proposed Home Sit

....... 1 J_..1 ....... 1 _._I ...... I J_._1 ....... 1 _._I .__I ___ _JI •

0' 150' 300'

40' Easement

COWLITZ COUMTY

HEALTH DEPARTMENT

Proposed Well

1,291 .32'

EHU

AJ & Amanda Moore Advanced Septic Consulting Inc. Design: Date:

440 Mull Rd. 220 Hanson Rd. Kalama, Washington 98625 21 -

334 412612022

Castle Rock, Washington 98611 Cell : 360-433-5476 E-Mail: dlrtwhisperer@gmall.com Drawing: 6 Scale: 1" = 150'