Exhibit_A.pdf

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BREWSTER

PATROS

METHOW

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EXISTING

DRAIN FIELD

NFD RD 2917

COMFORT STA. BLDG #14

EXISTING 2 1/2"

PVC FORCE MAIN

PROPOSED SEPTIC

TANKS LOCATION

ALTA LAKE

SOUTH

CAMP AREA

CENTRAL

CAMP AREA

WEST

CAMP LOOP

ALTA LAKE

STATE PARK

ALTA LAKE STATE PARK

ON-SITE SEWAGE SYSTEM UPGRADE

WASHINGTON STATE PARKS

& RECREATION COMMISSION

APPROVED FOR CONSTRUCTION

Area Manager: JEFF WHEELER date dateREGION MANAGER

CAPITAL PROGRAM MANAGER

MICHAEL LATIMER

MARK O. BROWN, CHAIR

SOPHIA DANENBERG LAURIE CONNELLY

KEN BOUNDS

DIANA DUPUIS, DIRECTOR

ALI RAAD HOLLY WILLIAMS

AEC2303

DOH Approved Stamp

PROJECT TEAM

WASHINGTON STATE PARKS

AND RECREATION

EASTERN HEADQUARTERS OPERATIONS

270 9TH STREET NE, SUITE 200

EAST WENATCHEE, WA 98802

OWNER/CLIENT:

OWNERS REPRESENTATIVE: CHRIS RAMSEY

REGIONAL MAINTENANCE MANAGER

PROJECT COORDINATOR

TEL (509) 699-1844

PARKS

STATE

RECREATION

WASHINGTON

COMMISSION

AND

45843REG I S T E R E D

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OF WASH I NGTON

PROFESS IONAL E NG I N

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N J. AJ CO

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PROJECT TEAM

AS SHOWN

WASHINGTON STATE PARKS

AND RECREATION

EASTERN HEADQUARTERS OPERATIONS

270 9TH STREET NE, SUITE 200

EAST WENATCHEE, WA 98802

10/21/24

EXISTING

DRAIN FIELD

N

FD

R D

COMFORT STA. BLDG #14

EXISTING 2 1/2"

PVC FORCE MAIN

PROPOSED SEPTIC

TANKS LOCATION

ALTA LAKE

SOUTH

CAMP AREA

CENTRAL

CAMP AREA

PARK BOUNDARY

PARKS

STATE

RECREATION

WASHINGTON

COMMISSION

AND

45843REG I S T E R E D

S

TA

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OF WASH I NGTON

PROFESS IONAL E NG I N

EE

R

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N J. AJ CO

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OVERALL SITE

PLAN

AS SHOWN

0S1.01

10/21/24

EXISTING DISTRIBUTION GRAVEL BED

(1.2 GPD/SF LOADING)

INTERCEPT EXISTING FORCEMAIN

AND CONNECT TO SEPTIC TANK 1

(3) 8,000 GALLON SEPTIC

TANKS IN SERIES

(INW PRECAST 8000-ST)

0S2.01

(2) 6,000 GALLON PUMP TANKS

IN SERIES. CONNECT TANKS AT

TOP AND BOTTOM

(INW PRECAST 6000-ST)

0S2.01

REPLACE EXISTING ADV AND

RELOCATED IN NEW VAULT

INTERCEPT EXISTING

LATERAL SUPPLY LINES

AND REROUTE TO NEW ADV

0S2.02

1.5" FLOW METER

IN VALVE VAULT

0S2.01

CONTROL PANEL 6

0S2.02

PARKS

STATE

RECREATION

WASHINGTON

COMMISSION

AND

45843REG I S T E R E D

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OF WASH I NGTON

PROFESS IONAL E NG I N

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DRAINFIELD SITE

PLAN

AS SHOWN

10/21/24

PARKS

STATE

RECREATION

WASHINGTON

COMMISSION

AND

45843REG I S T E R E D

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OF WASH I NGTON

PROFESS IONAL E NG I N

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GENERAL NOTES

AS SHOWN

1. ALL WORK, WORKMANSHIP AND MATERIALS FOR THIS PROJECT SHALL MEET OR EXCEED THE

PROJECT SPECIFICATIONS, WASHINGTON STATE DEPARTMENT OF HEALTH ENGINEERING DESIGN AND

DEVELOPMENT STANDARDS AND MAY INCLUDE REFERENCES TO THE MOST CURRENT VERSION OF

THE WSDOT STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION. IF THERE IS A CONFLICT BETWEEN THE SPECIFICATION TYPES, THE MOST RESTRICTIVE REFERENCE

SHALL BE ADHERED TO.

2. ALL GOVERNMENTAL SAFETY REGULATIONS SHALL BE STRICTLY ADHERED TO INCLUDING OSHA, WISHA AND THE WASHINGTON DEPARTMENT OF LABOR AND INDUSTRY.

3. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO DULY NOTIFY PARKS IN ADVANCE OF THE

COMMENCEMENT OF ANY AUTHORIZED WORK AND TO SCHEDULE REQUIRED INSPECTIONS. ALL

REQUIRED INSPECTION TESTS WILL BE PERFORMED AT THE CONTRACTOR'S EXPENSE.

4. THE CONTRACTOR SHALL PROVIDE A TWO-YEAR WARRANTY ON ALL WORKMANSHIP AND MATERIAL

FOLLOWING ACCEPTANCE OF THE PROJECT BY THE OWNER.

5. THE APPROVAL OF THESE PLANS BY WSDOH OR PARKS DOES NOT RELIEVE THE CONTRACTOR OR DEVELOPER OF THE RESPONSIBILITY TO COMPLY WITH THE REQUIREMENTS OF OTHER GOVERNING

AGENCIES.

6. CAUTION - NOTICE TO CONTRACTOR

THE CONTRACTOR IS SPECIFICALLY CAUTIONED THAT THE LOCATION OF EXISTING UTILITIES AS

SHOWN ON THESE PLANS IS BASED ON THE PROJECT SURVEY AND OTHER RECORDS OF UTILITIES.

THE INFORMATION IS NOT TO BE RELIED ON AS BEING EXACT OR COMPLETE. THE CONTRACTOR

SHALL CALL 811 48 HOURS PRIOR TO PLANNED EXCAVATIONS.

7. THE DESIGN SHOWN IS BASED UPON THE ENGINEER'S UNDERSTANDING OF THE EXISTING

CONDITIONS. THE EXISTING CONDITIONS SHOWN ON THIS PLAN SHEET ARE BASED UPON COMPILED SURVEY DATA. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING FIELD CONDITIONS PRIOR TO BIDDING THE PROPOSED WORK IMPROVEMENTS. IF CONFLICTS ARE DISCOVERED, THE CONTRACTOR

SHALL NOTIFY THE OWNER OR OWNERS REPRESENTATIVE.

8. EXISTING UTILITIES ARE SHOWN FOR REFERENCE ONLY. PRIOR TO CONNECTION TO EXISTING UTILITIES THE CONTRACTOR SHALL VERIFY EXACT LOCATION, DIA, LENGTH, CONDITION, PIPE TYPE, SLOPE AND VERTICAL AND HORIZONTAL ALIGNMENT OF THE EXISTING UTILITY AND PROPOSED POINT OF CONNECTION. THE CONTRACTOR SHALL REPORT ANY DISCREPANCIES TO ENGINEER PRIOR TO

CONSTRUCTION.

9. THE CONTRACTOR SHALL REVIEW AND BECOME FAMILIAR WITH THE STATE PARKS-OBTAINED

PERMITS. THE CONTRACTOR SHALL OBTAIN ALL OTHER FEDERAL, STATE, OR LOCAL DEPARTMENTS

REQUIRED PERMITS AFFECTED BY THE WORK NOT PREVIOUSLY OBTAINED BY STATE PARKS.

10. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO HAVE A COPY OF THE APPROVED PLANS, SPECIFICATIONS, AND CONTRACT DOCUMENTS AT THE CONSTRUCTION SITE AT ALL TIMES.

11. THE CONTRACTOR SHALL PROVIDE SLOPE PROTECTION FOR SLOPES OF 5:1 OR GREATER

ACCORDING TO ASSOCIATED GENERAL CONTRACTORS (AGC) STANDARD GUIDELINES AND BEST

MANAGEMENT PRACTICES (BMP'S).

12. THE CONTRACTOR SHALL MAINTAIN EROSION CONTROL FACILITIES IN ACCORDANCE WITH

DEPARTMENT OF ECOLOGY STORMWATER MANUAL.

13. THE CONTRACTOR SHALL SAFELY MAINTAIN TRAFFIC AND CONTINUOUS ACCESS TO PRIVATE AND/OR

PUBLIC PROPERTY.

14. CONSTRUCTION SIGNING AND TRAFFIC CONTROL SHALL BE PER THE CURRENT COPY OF THE MANUAL

OF UNIFORM TRAFFIC CONTROL DEVICES (MUTCD).

15. ALL VEHICLES AND EQUIPMENT SHALL BE KEPT WITHIN THE WORK AREAS ESTABLISHED FOR THAT

WORK SHIFT UNLESS TRAVELING TO OR FROM THE SITE. UNDER NO CIRCUMSTANCES SHALL

VEHICLES OR EQUIPMENT BE PARKED OR STORED OUTSIDE OF THESE AREAS.

16. OTHER CONSTRUCTION PROJECTS MAY OCCUR NEAR THE PROJECT SITE AND MAY BE IN PROGRESS

CONCURRENT WITH THE PROJECT. THE CONTRACTOR SHALL COOPERATE AS NECESSARY AND NOT

INTERFERE OR HINDER THE PROGRESS OR COMPLETION OF WORK BEING PERFORMED BY OTHER

CONTRACTORS.

17. THE CONTRACTOR SHALL BE RESPONSIBLE FOR FURNISHING AND INSTALLING ALL MATERIALS, LABOR, AND EQUIPMENT NECESSARY TO COMPLETE THE WORK SHOWN ON THESE DRAWINGS AND TO OBTAIN

ACCEPTANCE BY THE PROJECT OWNER.

18. ALL AREAS DISTURBED DURING CONSTRUCTION SHALL BE RESTORED TO THEIR ORIGINAL "PRE

CONSTRUCTION" STATE OR BETTER.

19. DRIVEWAY ACCESS AND UTILITY SERVICE TO EXISTING TRAIL SHALL BE MAINTAINED AT ALL TIMES.

20. THESE NOTES CONTAIN GENERAL INFORMATION AND ARE NOT COMPREHENSIVE. CONTRACTOR

SHALL VERIFY INFORMATION PROVIDED HERE WITH TECHNICAL SPECIFICATIONS AND OTHER

DOCUMENTS AND BRING ANY CONFLICTS TO THE ATTENTION OF WASHINGTON STATE PARKS (OWNER)

BEFORE WORK IS INITIATED.

1. THE BOUNDARIES OF THE GROUND DISTURBANCE LIMITS SHOWN ON THE PLAN SHALL BE CLEARLY FLAGGED BY A CONTINUOUS LENGTH OF SURVEY TAPE (OR FENCING, IF REQUIRED) PRIOR TO ANY CLEARING OR GRADING.

DURING THE CONSTRUCTION PERIOD NO DISTURBANCE BEYOND THE GRADING/CLEARING LIMITS SHALL BE PERMITTED. THE GRADING/CLEARING LIMITS SHALL BE MAINTAINED BY THE CONTRACTOR/TESC SUPERVISOR FOR

THE DURATION OF CONSTRUCTION.

2. TREE PROTECTION FENCING MUST BE IN PLACE PRIOR TO ANY GRADING ACTIVITIES. NO EQUIPMENT IS ALLOWED WITH THE TREE PROTECTION BOUNDARIES. ANY GRADING REQUIRED WITHIN A TREE PROTECTION BOUNDARY

MUST BE DONE WITH HAND EQUIPMENT.

3. THE TESC FACILITIES MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING AND/OR ASPHALT/CONCRETE CUTTING SO AS TO ENSURE NO TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES.

4. ANY AREAS OF EXPOSED SOILS, INCLUDING BUT NOT LIMITED TO ROADWAY EMBANKMENTS, STOCKPILE MATERIAL, AND CUT SLOPES THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON OR SEVEN DAYS DURING THE DRY SEASON SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED TESC METHODS (E.G.

SEEDING, MULCHING, PLASTIC COVERING, NETTING, EROSION BLANKETS ETC.).

5. DURING THE WET SEASON (OCTOBER 1 THROUGH APRIL 30 INCLUSIVE), ALL DISTURBED SOILS SHALL BE STABILIZED WITHIN 48 HOURS AFTER STOP OF WORK. EROSION CONTROL MEASURES SHALL INCLUDE, BUT ARE NOT LIMITED TO, COVERING THE AFFECTED AREA INCLUDING SPOIL PILES WITH PLASTIC SHEETING, STRAW MATTING, JUTE MATTING, STRAW MULCH, OR WOOD CHIPS. SEEDING OF THE DISTURBED AREAS SHALL TAKE

PLACE AS WEATHER PERMITS.

1. THE CONTRACTOR SHALL FOLLOW EROSION CONTROL PRACTICES OUTLINED IN THE WASHINGTON STATE

DEPARTMENT OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR WESTERN WASHINGTON.

2. EROSION CONTROL MEASURES ARE NOT LIMITED TO THE ITEMS ON THESE PLANS. THE CONTRACTOR IS RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION CONTROL MEASURES. NO SILTATION OF EXISTING OR PROPOSED DRAINAGE FACILITIES SHALL BE ALLOWED. CARE SHALL BE TAKEN TO PREVENT

MIGRATION OF SILTS TO OFF-SITE PROPERTIES.

3. EROSION CONTROL MEASURES SHALL BE IN PLACE PRIOR TO THE BEGINNING OF CONSTRUCTION. THE PROJECT ENGINEER AND THE REVIEWING AGENCY SHALL INSPECT AND APPROVE THE INSTALLATION OF EROSION CONTROL

MEASURES PRIOR TO BEGINNING CONSTRUCTION.

A. INSTALL INLET SEDIMENTATION AS SPECIFIED AT ALL CATCH BASIN LOCATIONS IMMEDIATELY UPON ARRIVAL AT

PROJECT/CONSTRUCTION SITE.

4. ALL EROSION/SEDIMENTATION CONTROL FACILITIES SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL CONSTRUCTION IS COMPLETE AND THE SITE HAS BEEN STABILIZED. THE CONTRACTOR IS RESPONSIBLE FOR IMPLEMENTATION, MAINTENANCE, REPLACEMENT, AND ADDITIONS TO THE SYSTEM AS REQUIRED BY THE OWNER, ENGINEER.

5. THE CONTRACTOR SHALL MAKE A DAILY SURVEILLANCE OF ALL EROSION CONTROL MEASURES AND MAKE ANY NECESSARY REPAIRS OR ADDITIONS TO THE EROSION CONTROL MEASURES AS REQUIRED. THE CONTRACTOR SHALL PROVIDE ADDITIONAL EROSION CONTROL MEASURES AS DETERMINED NECESSARY BY THE INSPECTOR AND/OR PROJECT ENGINEER. FAILURE TO COMPLY WITH ALL LOCAL AND STATE EROSION CONTROL REQUIREMENTS

MAY RESULT IN CIVIL PENALTIES BEING LEVIED AGAINST THE CONTRACTOR.

6. PRIOR TO CLEARING AND GRADING THE CONTRACTOR SHALL PROTECT TREES TO BE SAVED WITH HIGH VISIBILITY FENCING AT THE ROOT PROTECTION DELINEATION OR OTHERWISE PROTECTED AS DIRECTED BY THE ENGINEER, CITY STAFF, OR OWNERS REPRESENTATIVE. CLEARING AND GRADING LIMITS SHALL BE STAKED IN THE FIELD PRIOR

TO EXCAVATION.

7. ALL STORM DRAINAGE INLETS RECEIVING RUNOFF FROM THE PROJECT DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT-LADEN WATER WILL BE FILTERED BEFORE ENTERING THE CONVEYANCE SYSTEM.

8. ALL OFF-SITE CATCH BASINS IMMEDIATELY ADJACENT TO THE PROPOSED SITE SHALL BE PROTECTED FROM

SILTATION.

9. THE CONSTRUCTION OF TRENCHES (E.G., PIPES, UNDERGROUND UTILITY LINES AND STRUCTURES) SHALL BE

SUBJECT TO THE FOLLOWING CRITERIA:

A. NO MORE THAN 300 FEET OF TRENCH ON A DOWNSLOPE OF MORE THAN FIVE PERCENT SHALL BE OPENED AT ONE

TIME.

B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES.

10. TRENCH DEWATERING DEVICES SHALL BE DISCHARGED IN A MANNER THAT WILL NOT ADVERSELY AFFECT

STREAMS, DRAINAGE SYSTEMS, OR OFF-SITE PROPERTIES.

11. TRACKING OF SOIL, MUD, OR DEBRIS OFF-SITE IS NOT ALLOWED. SOIL, MUD, OR DEBRIS TRACKED ONTO A PUBLIC ROADWAY, SHALL BE REMOVED BY THE END OF THAT WORKING DAY. TO PREVENT THE TRACKING OF SOIL, MUD, OR DEBRIS ONTO PUBLIC ROADWAYS, SWEEPING OR WASHING OF THE VEHICLE'S TIRES MAY BE REQUIRED PRIOR TO

ENTERING A PUBLIC ROADWAY.

12. DROP-IN CATCH BASIN FILTERS MAY BE USED IN PLACE OF OTHER STANDARD INLET PROTECTION PRACTICES. THIS INLET PROTECTION TECHNOLOGY CAN BE USED IN SITUATIONS WHERE RIGHT-OF-WAY FLOODING WOULD BE

PROBLEMATIC.

13. TO MAINTAIN FUNCTION, THE CONTRACTOR SHALL REMOVE AND CLEAN OR REPLACE FILTERS AFTER EACH STORM EVENT. CONTACT THE JURISDICTION TO DETERMINE ITS ACCEPTANCE OF SPECIFIC FILTER PRODUCTS, PRIOR TO

INSTALLATION.

14. NO MATERIAL SHALL BE STOCKPILED ON PAVEMENT WITHOUT AUTHORIZATION FROM THE PROJECT ENGINEER OR OWNERS REPRESENTATIVE WHICH WILL BE CONDITIONAL ON IMPLEMENTATION OF A PROCEDURE TO PREVENT

SEDIMENT TRANSPORT.

15. ALL TEMPORARY EROSION CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION HAS BEEN ACHIEVED OR AFTER THE MEASURES ARE NO LONGER NEEDED. SEDIMENT COLLECTED IN TRAPS, PONDS, OR SILT FENCE SHALL BE REMOVED AND DISPOSED IN AN APPROVED MANNER OR STABILIZED ON SITE. DISTURBED SOIL AREAS RESULTING FROM SEDIMENT REMOVAL SHALL BE PERMANENTLY STABILIZED WITHIN

SEVEN (7) DAYS.

16. CONTRACTOR SHALL PLACE WADDLES ON THE DOWN SLOPE SIDE OF THE LIMITS OF DISTURBANCE.

17. CONTRACTOR SHALL PLACE FILTER FABRIC DOWN FOR A BARRIER PRIOR TO PLACING EXCAVATION SPOILS

ADJACENT TO TRENCHING TO SEPARATE EXISTING GROUND FROM STOCKPILED MATERIAL.

GENERAL CONSTRUCTION NOTES: GENERAL GRADING NOTES:

GENERAL EROSION CONTROL NOTES:

10/21/24

6"

(MIN.)

6"

(MIN.)

1/2" MIN./1" MAX.

24" ACCESS RISER WITH

LOCKING GAS TIGHT LID

(TYP.)

FINISHED GRADE

(ELEVATION VARIES

FROM 1263' TO 1265')

4"x2"

REDUCER

2" DIA. SCH

40 PVC

FORCE MAIN

DIRECTION

OF FLOW

TRANSITION 2'

OUTSIDE OF

TANK

4" DIA. TURNDOWN

MAX. EFFLUENT LEVEL

10' LIQUID LEVEL

6" TALL x 12"

LONG SLOT

4'-0"

4" DIA. SCH 40 PVC

INTERCONNECT

4" DIA. TURNDOWN

MAX. EFFLUENT LEVEL

10' LIQUID LEVEL

6" TALL x 12"

LONG SLOT

4" DIA. SCH 40 PVC

INTERCONNECT

4" DIA. TURNDOWN

MAX. EFFLUENT LEVEL

10' LIQUID LEVEL

6" TALL x 12"

LONG SLOT

4'-0" 4'-0"

4" DIA. SCH 40 PVC

INTERCONNECT

24" (MAX.)

(3) 8,000 GALLON SEPTIC

TANKS IN SERIES

(INW PRECAST 8000-ST)

OR ENGINEER APPROVED EQUAL

EL. 1263.00

EL. 1262.75

EL. 1262.50

EL. 1250.33

EL. 1250.58

EL. 1250.83

ACTIVATED CARBON

FILTER LID

(TYP.)

4" DIA. SCH 40 PVC

INTERCONNECT

4" DIA. TURNDOWN

6" TALL x 12"

LONG SLOT

8" DIA. SCH 40 PVC

4" DIA. SCH 40 PVC

INTERCONNECT

4" DIA. TURNDOWN

1'-6"

ORENCO BIOTUBE

OR ENGINEER APPROVED EQUAL

6" TALL x 12"

LONG SLOT

FILTER CARTRIDGE

EFFLUENT

PUMP

FLOW INDUCER

LOW LEVEL

ALARM

REDUNDANT OFF

TIMER ON/OFF

HIGH LEVEL

ALARM

DISCHARGE

TO APV

FLEXIBLE HOSE

DISCHARGE

ASSEMBLY

PVC SPLICE BOX

WITH CORD

GRIPS

CONDUIT TO

CONTROL PANEL

30" DIA. ACCESS RISER

WITH LOCKING COVER

20" 22"

60"

24" (MAX.)

(2) 6,000 GALLON PUMP TANKS IN SERIES

(INW PRECAST 6000-ST)

OR ENGINEER APPROVED EQUAL

8"8"8"

LAG TIMER ON/OFF

48"

EL. 1262.50 EL. 1262.50

EL. 1252.83

FINISHED GRADE

(ELEVATION VARIES

FROM 1263' TO 1265')

EL. 1252.83

FLOW METER

(ORENCO FM150 OR

APPROVED EQUAL)

DIRECTION

OF FLOW

UNION

15" (MIN.) 7.5"

(MIN.)

NDS PRO SERIES 13"x24"x15" RECTANGULAR

VALVE BOX (222BCB) WITH COVER

(121BCDMCIFB) OR APPROVED EQUAL

NOTE:

METER TO BE INSTALLED SO THAT IT REMAINS FULL AT ALL TIMES.

PARKS

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RECREATION

WASHINGTON

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TANK DETAILS

AS SHOWN

M

AT

C H

LI

N

E (S

EE

B

EL

O

W

(S

EE

A

BO

VE

M

AT

C H

LI

N

E

1 NOT TO SCALE

SEPTIC TANK CHAMBERS 1-3

2 NOT TO SCALE

PUMP TANK CHAMBERS 1-2

3 NOT TO SCALE

1.5" FLOW METER IN VALVE BOX

10/21/24

18"

18"

FINISHED

GRADE

TO PRESSURE DISTRIBUTION

(6 TOTAL, 3 EA. SIDE)

ONE SIDE SHOWN FOR CLARITY

PEA GRAVEL

BELOW VALVE

2" PVC ELL WITH

2" x 1 1/2" REDUCER

(TYP.)

1 1/2" ELL

(TYP.)

2" PVC SCH 40 PIPE

FROM DOSING

CHAMBER

FINISHED GRADE

ELEV: xxx

BASE OF VALVE

ELEV: xxx

(OR HIGHER)

1 1/2" BALLVALVE

2" x 1 1/2" REDUCER

24" DIA. RISER

WITH LOCKING LID

SIX-WAY DISTRIBUTING

VALVE ORENCO ADV6606A

1 1/2" UNION

(TYP.)

FLOAT CORD

SPLICE BOX

GAS AND WATERTIGHT

SPLICE BOX FOR PUMP

CORDS

BALL VALVE

UNION CHECK

VALVES

DOSING TANK

2" DIA.

TRANSPORT LINE

SIX-WAY

DISTRIBUTING

VALVE ASSEMBLY DISCHARGE LATERALS

(6 TOTAL)

2" FLOW METER

IN VALVE BOX

1. TRENCHING SHALL MEET THE REQUIREMENTS OF SECTION

7-10.3(7) OF THE WSDOT SPECIFICATIONS.

2. BEDDING MATERIAL FOR RIGID PIPE SHALL BE CRUSHED,

PARTIALLY CRUSHED, OR NATURALLY OCCURRING

GRANULAR MATERIAL CONFORMING TO THE FOLLOWING

GRADATION:

SIEVE SIZE PERCENT PASSING

1-1/4" SQUARE 100

1/4" SQUARE 30-50

U.S. NO. 40 3-18

U.S. NO. 200 7.0 MAX.

SAND EQUIVALENT 35 MIN.

3. ALL PERCENTAGES ARE BY WEIGHT. NATIVE MATERIAL

SHALL NOT BE USED FOR PIPE BEDDING. GRAVEL BACKFILL

FOR ABOVE BEDDING SHALL BE IN ACCORDANCE WITH

WSDOT STD. SPEC 7-08.3(3)

SEE

NOTE 1

36" MIN. (UNDER DRIVING SURFACE)

1`8" MIN. (UNDER LANDSCAPE)

PIPE BEDDING MATERIAL

(SEE NOTE 2)

6" (MIN.)

4" (MIN.)

UNDISTURBED OR

COMPACTED SUB-GRADE

BACKFILL MATERIAL

(SEE NOTE 2)

TRANSPORT /

RETURN

PIPES

NOTE

BACKFILL MATERIAL SHALL NOT HAVE PARTICLE SIZE GREATER THAN 1"

WITHIN 6" OF THE PIPE OR THE CONTRACTOR HAS THE OPTION TO USE

GRAVEL BACKFILL PIPE ZONE BEDDING CONFORMING TO W.S.D.O.T. 9-03.12 (3).

1.5' (MIN.)

4"

6"

4" (MIN.)

PER DESIGN

METALLIC MARKING TAPE

(TYP.)

SUBGRADE ELEVATION

PVC SCH 40 PIPE

GRAVEL BACKFILL FOR

PIPE ZONE BEDDING PER

W.S.D.O.T. 9-03.12(3), 95%

COMPACTION

BANK RUN GRAVEL FOR

TRENCH BACKFILL

MEETING W.S.D.O.T.

9-03.19, 95%

COMPACTION. 6"

MAXIMUM LIFTS

96"

48"

6"

54"

12" (TYP.)

3" DIA.

GALVANIZED POST

(TYP.)

CONTROL PANEL IN

LOCKABLE STEEL OR

FIBERGLASS NEMA 4X

ENCLOSURE

GALVANIZED UNISTRUT

(TYP.)

3" GALVANIZED CAP

(TYP.)

PARKS

STATE

RECREATION

WASHINGTON

COMMISSION

AND

45843REG I S T E R E D

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DETAILS

AS SHOWN

1 NOT TO SCALE

SIX-WAY ADV VALVE

GENERAL PROJECT NOTES

1. SYSTEM INSTALLER SHALL MEET THE FOLLOWING CRITERIA:

1.1. SHALL BE CERTIFIED AS AN INSTALLER OR OTHERWISE

APPROVED BY WSDOH.

1.2. SHALL HAVE DEMONSTRABLE EXPERIENCE OF HAVING

INSTALLED AT LEAST 3 SYSTEMS WITH AVERAGE DESIGN

FLOWS OF AT LEAST 3,000 GALLONS PER DAY.

2. ALL CONSTRUCTION TO MEET THE WASHINGTON STATE

DEPARTMENT OF HEALTH (WAC 246-272B) AND COUNTY

REGULATIONS.

3. SITE PLAN, EXISTING STRUCTURES AND TOPOGRAPHY BY

OTHERS. ADC MAKES NO ASSURANCES AS TO THEIR

ACCURACY.

4. CUTS (EXCAVATIONS) OF GREATER THAN 2FT BUT LESS THAN

5FT IN HEIGHT SHALL NOT BE MADE WITHIN 15FT PLUS THE

HEIGHT OF THE CUT DOWNSLOPE OF THE DRAINFIELD AREAS.

CUTS OF 5FT OR MORE IN HEIGHT SHALL NOT BE MADE WITHIN

50FT DOWNSLOPE OF DRAINFIELD AREAS.

5. FOLLOW MANUFACTURERS' RECOMMENDATIONS FOR

PLACEMENT AND TESTING OF TANKS AND ASSOCIATED

EQUIPMENT.

8. EXCAVATIONS GREATER THAN 48” IN DEPTH SHALL BE SHORED

IN COMPLIANCE WITH RCW 39.04.180, WAC 269-155-657 AND RCW

49.17.

9. CONIFER TREES AND LARGE SHRUBS SHALL BE LEFT INTACT

AND ALL VEGETATIVE PLANTINGS IN THE DRAINFIELD AREA

SHALL BE LIMITED TO SMALL, NATIVE PLANT AND SHRUBS.

10. DURING CONSTRUCTION PRECAUTIONS SHALL BE TAKEN TO

MINIMIZE SOIL DISTURBANCE AND COMPACTION IN THE

DRAINFIELD AREAS. DO NOT DRIVE, PARK, PAVE OVER, OR

REMOVE SOILS IN PRIMARY OR RESERVE DRAINFIELD AREAS.

11. VEGETATION MAY NOT BE REMOVED WITHOUT FIRST OBTAINING

APPROVAL AND GUIDANCE FROM THE DESIGN ENGINEER AND

PROJECT OWNER. DISTURBANCE OF VEGETATION IN THE DRAIN

FIELD SHALL BE MINIMIZED AND ONLY PERFORMED BY THE LOSS

INSTALLER. ROOT SYSTEMS SHALL BE LEFT INTACT TO THE

GREATEST EXTENT POSSIBLE.

12. PRIOR TO ANY SOIL DISTURBING ACTIVITY ON SITE THE

GENERAL CONTRACTOR SHALL STAKE THE CORNERS OF THE

DRAIN FIELDS, PROVIDE BARRIER FENCING AND ENSURE THAT

THE AREA IS NOT DISTURBED THROUGHOUT THE

CONSTRUCTION PHASE.

13. CONTRACTOR SHALL DECOMMISSION THE EXISTING SEPTIC

SYSTEM IN ACCORDANCE WITH COUNTY HEALTH DEPARTMENT.

DECOMMISSIONING PERMITS AND APPLICATIONS SHALL BE

OBTAINED BY THE CONTRACTOR.

ONSITE SYSTEM DESIGN CAPACITY

1. THE SYSTEM IS DESIGNED TO TREAT AND DISPERSE

WASTEWATER GENERATED AT FULL BUILDOUT DURING THE

PEAK SEASON OF JUNE THROUGH SEPTEMBER. SEE

ENGINEERING REPORT FOR BASIS OF OPERATING CAPACITY

AND DESIGN FLOW.

2. THE SYSTEM IS DESIGNED FOR SANITARY WASTEWATER

STRENGTH AND CHARACTERISTICS OF RESIDENTIAL

WASTEWATER. THE LOSS IS DESIGNED FOR AN OPERATING

CAPACITY AS OUTLINED IN THE ENGINEERING REPORT. IT IS THE

OWNER/OPERATOR'S RESPONSIBILITY TO ENSURE THESE LIMITS

ARE NOT EXCEEDED (SEE ENGINEERING REPORT FOR FULL

BASIS OF DESIGN).

TESTING AND INSPECTION REQUIREMENTS

1. INSTALLER SHALL TEST TANKS TO ENSURE THEY ARE WATER

TIGHT AFTER INSTALLATION AND PRIOR TO APPROVAL OF THE

SYSTEM FOR USE.

CONCRETE TANKS: HYDROSTATIC TESTING SHALL BE USED ON

CONCRETE TANKS. INSTALLER SHALL TEST TANKS BY:

1. SEAL THE EMPTY TANK;

2. SEAL ACCESS OPENINGS, RISERS, AND INLET AND

OUTLET PIPES;

3. FILL THE TANK WITH WATER TWO INCHES INTO THE

RISER AND LET STAND FOR TWENTY-FOUR HOURS;

4. ADD WATER TO THE TANK, IF NECESSARY, TO THE

ORIGINAL LEVEL;

5. THE TANK PASSES IF THE WATER LEVEL IS

UNCHANGED AFTER ONE HOUR;

6. THE DESIGN ENGINEER SHALL REJECT TANKS THAT DO

NOT MEET THE WATER TIGHTNESS STANDARD.

2. ALL GRAVITY SEWER LINES AND TRANSPORT PIPE SHALL BE

TESTED FOR TIGHTNESS BY USE OF A LOW PRESSURE AIR TEST

IN ACCORDANCE TO WSDOT STANDARD SPECIFICATIONS.

3. PRESSURE DISTRIBUTION INSPECTION REQUIRES THAT ALL

CONNECTIONS, CHECK VALVES, AND MANIFOLDS BE EXPOSED

OR FLAGGED TO ALLOW DESIGN ENGINEER TO VISUALLY

OBSERVE CONNECTIONS.

4. SYSTEM MAY NOT BE PLACED INTO SERVICE UNTIL WA D.O.H.

HAS COMPLETED FINAL INSPECTION OF SYSTEM, HAS

OBSERVED A FUNCTIONAL TEST OF SYSTEM AND HAS ISSUED

FINAL APPROVAL TO OPERATE. D.O.H. REQUIRES TEN DAYS

NOTICE PRIOR TO FINAL INSPECTION AND TESTING.

2 NOT TO SCALE

DOSE CHAMBER PUMP - TOP VALVE 3 NOT TO SCALE

VALVE LOCATION SCHEMATIC PROFILE

4 NOT TO SCALE

PRESSURE SEWER BEDDING AND BACKFILL

5 NOT TO SCALE

GRAVITY SEWER BEDDING AND BACKFILL

SPECIFICATIONS

1. SEPTIC TANKS - (3) 8,000 GALLON INW PRECAST 8000-ST TANKS AS

CONFIGURED IN PLAN OR APPROVED EQUAL.

2. PUMP TANKS - (2) 6,000 GALLON INW PRECAST 6000-ST TANKS AS

CONFIGURED IN PLAN OR APPROVED EQUAL.

3. PUMP VAULT - ORENCO PVU120-18-19L APPROVED EQUAL.

4. PUMPS - DUPLEX ORENCO PF200512, 0.5HP 240V 1PH APPROVED EQUAL.

5. FLOW METER - ORENCO FM-150 APPROVED EQUAL.

6. AUTOMATIC DISTRIBUTION VALVE - ORENCO V6606A APPROVED EQUAL.

7. CONTROL PANEL - SJE RHOMBUS IFN PANEL CONFIGURED FOR DUPLEX

TIMED DOSING, REDUNDANT OFF, TIMER ON/OFF, OVERRIDE TIMER

ON/OFF, HIGH LEVEL ALARM APPROVED EQUAL.

6 NOT TO SCALE

CONTROL PANEL MOUNTING DETAIL

10/21/24