HomeMy WebLinkAboutSWG2026-00127-APPLICATION-DESIGN - SWG Application / Design - 8/31/2026 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584
BHELTON:360-49-9670,EXT 400
BELFAIR:360-275-4467,EXT 400
Public Health & Human Services ELMA:360482-5269,EXT 400
u_IFAX 360-427-7787
On-Site Sewage System Permit: SWG2026-00127
APPLICANT DITZLER JOHN C & CRISTA M Phone:
Address: 16525 SE 30TH ST BELLEVUE, WA 98008-5625
OWNER DITZLER JOHN C &CRISTA M Phone'.
Address. 16525 SE 30TH ST BELLEVUE, WA 98008-5625
SEPTIC DESIGNER Charles Pollmar Phone: 206-842-7927
Address: 10081 Arrow Point Dr NE BAINBRIDGE ISLAND, WA 98110
Site Address: 7151 NE NORTH SHORE RD
Primary Parcel Number: 222095000001
Permit Description: Replacement 2bd ATU to pressure bed with state waivers
Permit Submitted Date: 04/30/2026
Permit Issued Date: 08/11/2026
Issued By Rhonda Thompson
Current Permit Fees Paid: $740.00 (additional fees may be required upon installation of systems.
Permit Expiration Date: 05/06(2029 (eased on dale of inspection)
Permit Conditions:
I Approval of this septic permit does not approve the building location. Building location is
subject to approval from all applicable departments and regulations.
2 Proposed development subject to zoning requirements and approval by the planning
department staff per Mason County Title 17.
3 Permit must be installed by a Mason County Certified Installer unless prior written
authorization from Mason County is obtained.
4 Grainfield installation not to exceed designed upslope and downslope depth specified on
design form.
5 Installer is responsible for obtaining Mason County installation approval prior to backfill of
system components.
6 Installer is responsible for obtaining Septic Designer/Engineer installation approval prior to
backfill of system components.
7 Mason County Asbuilt Form, Record Drawing, and Installation fee must be submitted for
final installation approval.
THIS PERMIT MUST BE ONSITE DURING INSTALLATION OF OSS.
PROPERTY OWNERS ARE RESPONSIBLE FOR DETERMINING AND MARKING ALL PROPERTY LINE AND EASEMENT LOCATIONS.
THIS PERMIT MAY BE REVOKED IF THE SITE CONDITIONS HAVE CHANGED SINCE THE SITE WAS INSPECTED AND DESIGN APPROVED.
FINAL INSTALLATION APPROVAL IS REQUIRED PRIOR TO TEMPORARY OR FINAL OCCUPANCY OF ANY RELATED STRUCTURES.
For Final Inspection visit: masoncountywa.govlhealth/environmentallonsiteloss-inspection-request.php or call:
360-427-9670, extension 400.
MASON COUNTY °"E""`"`°
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0 WAIVERIS)UF APPLICABLE, 2 52 ACRE YES /L
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AT 7151 NE SHORE ROAD, APPROX 7 MILES SOUTHWEST OF INTERSECTION
WITH HIGHWAY 3 IN BELFAIR , ON LEFT HAND (SOUTH) SIDE OF NORTH SHORE B
ROAD, ACCESS IS LATCHED GATE ON LEFT HAND SIDE OF CARPORT IN o b
VICINITY OF NE CORNER OF PROPERTY , I
NOTE : THIS IS A RE-DESIGN OF A PREVIOUSLY SUBMITTED APPLICATION , I—.
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THIS FORM MAY BE SCANNED AND AVAILABLE FO0.PUBLIC VIEW ON THE MASON COUNTY WEBSITE
Revised 01.09/2026
DESIGN FORM—PAGE ONE Assessor's Parcel Number: 2 2 2 0 9 5 0 0 0 0 0 1
A design will be reviewed when 3 copies of each of the following are submitted:
.Completed design form that has been signed and dated, e Scaled layout sketch,including all applicable items on checklist.
e Scaled plot plan, including all applicable items on checklist "Cross-section sketch.including all applicable items on checklist.
This form may he scanned and available for public view on the Mason County Web site.,Nasirrrurn paper size: 11".Y 17"
PARCEL IDENTIFICATION
Permit Number SWG - Designer's Name. CHARI FS H . POI I MAR
Applicant's Name: JOHN A R I STA ➢1 T71 ER Desgners Phone Number: (206) $112-].227
Mailing Address:
16525 SE 30th STREET Designer's Address: 10081 ARROW POINT DRIVE NE
City State Zip BA INBRIOGE ISLAND, WASHINGTON 981 0
BELL_EWE WASHINGTON 98008 _
City State Zip Designer's Email _
_ DESIGN PARAMETERS _ __._-_.
Treatment Device
❑Glendon ❑ Sand Filter ❑ Mound ❑ Sand Lined Dainficld ❑Reclrculoting Filier 0 ATU—_ _- M Other AZU __
Treatment Level(check all that apply)'. ❑ A W B ❑C ❑ BLI 0 BL2 ❑BL-1 0 E ❑N
Drainfield Type
❑Gravity 00 Pressure 0 Trench 01 Bed ❑ Sub Surface Drip
Septic Tank/Drainfeld Specifications Laterals
Nnmberoffedromns 2 ScheduleClass SCHEDIII F 40 PVC
Daily Flow.Operating Capacity 240 gpd Length 15 ft
Daily Flow::Design Flow 240 gpd Diameter 1'"
in
Septic Tank Capacity(working) 1 250 gal Number
Receiving Soil Type(1-61 Tv 3 Separation 21 ft
Receic ing Sad Appl. Rate 1 ,0 (ALLOWED) gpdfl' Orifices
Required Primary Area 240 ft' Total Number ofOritices 48
Designed Primary Area 240 fC Diameter 3/16 in
Designed Rasen'e Area 300 f12 Spacing 24 in
Trench'Bed Widtt 7 cfl ft Manifold
Trench:Bed Length 32 .00 fl Schedule.'Class SCHEDULE 40 PVC
Elevation Measurements Length S it
Original Dminlield Area Slope 0-1 o Diameter 2 in
New Slope, If Altered NA o Preferred manifold configuration used? 01'es 0 N
Depth of Excavation Up-skpe 24 in Transport Pipe
from Original Grade Is, ,lope 23' in Schedule/Class SCHFDU LE 40 PVC
Designed Vertical Separation 311-36± in Length SO If
Gravel-based Draintield Required? I) Yes 0 No Diameter 2 in
Ramp Required? IM Yes 0 No Dosing and Pump Chamber
Pump/Siphon Specifications Number of doses/day 6
Dift. in Hlevatton Between Pump& Uppermost Orifice. 5.J' Dose quantity 40 gal
Drainfeld Squirt Heighb Selected Residual (head) __2 —ft Chamber Capacity(flood) 1 250 gal
Pump controls: Please check those required.
Uppermost Total re Higher 0 tower than PuQ+ Shutoff N Timer (A Elapse Meter g(I Event Counter
Capacity d'Total Pressure Head 30+ gent
Calculated Total Pressure Head 10 Il If Timer' Pump on SEE COMMENTS,Pump oil SEE COMMENTS
Comments REFER TO THE SPECIFICATIONS ACCOMPp.'NT:'T., TH iP;f LrS.GATION , THE "ON"
& "OFF" TIME CANNOT BE SET UNTIL THE EXACT'PUIMP IVOLu MEE C P ) IS DETERMINED
AFTER INSTALLATION HAS BEEN COMPLETE➢ ,
Revised.6/I 1/2025
DESIGN FORM—PAGE TWO Assessor's Parcel Number 2 2 2 0 9 5 0 0 0 0 0 1
Permit Number: SWG
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
Test hole locations M Drainfield orientation and layout Reference depth from original grade:
¢s'I Soil logs [$ Trench/bed dimensions and
Septic tank
Property lines critical distances within layout W Drainfield cover
0 Existing and proposed wells L(1 D-Box/Valve box locations Reference depth from original grade
within 100 It of property Septic tank/pump chamber and restrictive strata:
❑ Measurements to cuts, banks,and locations
Laterals, nench,'bed,top and
surface water and critical areas Observation port location bottom
($I Location and orientation of Clean-out location ❑ Curtain drain collector
curtain drain and all absorption Manifold placement P Sand augmentation
components
� Orifice placement Other cross-section detail:
Location and dimension o£
primary system and reserve area to dg fplacement with distance �I nforObse at ioon ports/clean-outs
to edge of bed Other Information
Buildings
� Audible/visual alarm referenced Yes No
[$ Direction of slope indicator ' Scale of drawing shown on scale Cl ❑ Design staked out
❑ Waterlines bar ❑ O Recorded Notices attached
I$ Roads, easements,driveways, X Elevation benchmark and relative 1A O Waiver(s) attached
parking elevations of system components O 0 Pump curve attached
(A North arrow and scale drawing ❑ 1p Evaluation of failure
shown on scale bar
Non-residential justification
❑ ❑Waste strength
❑ ❑ Flow
DESIGN APPROVAL
The undersigned designer must be notified by installer at time of installation W Yes ❑ No
�i7cP✓t 7/15/2026
ignature of Designer Date
The undersigned has reviewed this design on behalf of Mason County Public Health and determined it to be in
compliance with state and local on-site regulations:
--- �k�st /31It
Environmental Health S ecialist Date
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped"Approved"by Mason County Public Health. s16 hl
✓ The Onsite Sewage Permit has not expired, the Permit Expiration Date is:
✓ Drainfield site conditions have not been altered to adversely affect conditions of design approval.
Please Note: The system must be installed by a certified installer,
unless prior authorization is obtained from Mason County Public Health.
An Installation Fee is required.
This form may be scanned and available for public view on the Mason County Web site. Revised 6/11/2025
CHARLES H. POLLMAR & ASSOCIATES
JOHN & CRISTA DITZLER
BUILDING SITE APPLICATION
REVISED SOIL LOG ANALYSIS:
SITE: 7151 NE Shore Road
Belfair, Washington 98528
Parcel # : 22209-50-00001
SOIL LOG ANALYSIS:
SOIL LOG # I: 0-6 Dark Brown. Sandy/Gravelly"topsoil
6-60" + Loose,Medium Grain. Brown, Gravelly Sand
w/some Silts, as well as some Coarse Grain Sands
Intermixed
Root Penetration to 60"+ Level
(NO Ground Water Present
[Water(a 62 'G' Level on 3/24/2026]
SOIL LOG # 2: 0-6' Dark Brown. Sandy Topsoil
6-60" Loose, Brown, Medium Grain, Gravelly Sand w/some
Fine Sands, Coarse Sands, and some Silts Ineermixed
Root Penetration to 56" --
Water(<4 56' Level on 3/5/2026
[Water @ 53" Level on 3/24/2026]
SLOPE: 0 to 1%
DATE TESTS CONDUCTED: _March 5, 2026
NOTE: The location for Excavation of the Soil logs was severely limited by the location of Existing
Waterlines. Septic Tanks, the Existing Drain Field,and the Existing Carport. The Soil logs
were excavated in locations where the disruption of Existing Utilities would be minimized,
while still being representative of the soils on site.
. . - ttuucs x. ML UM-1.
CHARLES H. POLLMAR & ASSOCIATES
DITZLER - ON SITE SEWAGE SYSTEM APPLICATION
REVISED EXPLANATORY NOTES:
The Owner wishes to Demolish the Existing Residence on this site and construct a New Residence on
essentially the same footprint as the Existing House.
It should be noted that the Septic System was originally installed as per Application# 381 that was
issued on 6/29/1954.It is assumed that the Residence was constructed at the same time The Application was
for a 2 Bedroom Capacity at that time. The only other record for the Property was for an Alteration that was
Approved on April 14. 1975 (Permit # 8235). II'this Record applies to this property, my guess would be that
it was for the Installation of a New Septic Tank.This Application, however, states that it is a 3 Bedroom
Residence. It would seem that either this Application applies to another site OR it was expanded to a 3
Bedroom Capacity Home. In any case, the Residence has an Existing. County Approved Septic System. which
was constructed when the Setbacks were considerably less Restrictive(if they existed at all)than they are
today. Up until 1974,the Setback from the Shoreline was only 50 Feet. In the 1950's and Early 1960's there
was NO Setback at all. Currently the Setback of 100 Feet from the Shoreline eliminates 95% (+-)of the area
of this property.
This Application, however, offers the opportunity to improve and upgrade the Septic System to meet
current code(w/Waivers) and greatly improve effluent quality, thereby lessening the impact on the
environment. The Design is based on a 2 Bedroom Capacity Residence (MINIMUM Capacity) as there is
insufficient area for a larger Capacity Residence. While the Proposed Disposal Component cannot meet a 100
Foot Setback to the Shoreline. it is able to maintain an 80 Foot Separation from the Shoreline. In order to
install the Disposal Component on the North side of the Residence, it is necessary to install the Tanks on the
South(Waterfront) side. A Waiver accompanies this application for that purpose. Every effort has been made
to maximize the separation of the Septic System components from the Shoreline and to maintain all required
Setbacks where possible. Where not possible. mitigation measures have been proposed & Waivers requested.
When the Original Septic System and water line were installed, for example, no setbacks were required and
the Existing Water Line runs over the top of the Existing Septic Tank and adjacent to the Drain Field. In this
Application, the Waterline is to be Re-Routed along the R/W (Minimum 5 Feet from the Property Line)to the
Fast Property Line and is to be installed along the East Property Line to the New Residence, as indicated on
the Plot Plan,
The Existing Drain Field is also beneath an Existing'Carport—"protected"by a concrete slab on the
East side of the carport. The Proposed Disposal Component is to be installed due North& 10 Feet from the
Foundation Wall of the Proposed Residence. While covering much of the width of the property from the 5
Foot Setback to the West Properly Line to the East, it leaves enough room to meet the Setback to the
Waterline that is to be Re-Routed along the East Property Line, The Disposal Component is to be a Pressure
Dosed Gravel Bed excavated into the Native Sand & Gravel Soil. As a Portion of the Pressure Dosed Gravel
Bed may occupy the area where the Existing Septic Tank is located, the Existing Septic Tank must be
excavated and removed from the Site. To prevent the Excavation created by the Removal of the Tank from
being filled with soil that has NO Structure and is unable to drain,the Excavation is to *}ifled'dn`iy'with
"'.
Sand Filter Sand. which can drain without a structure.
( 2 )
Construction on this site must be coordinated and scheduled due to the small size of the Property and
limited area to maneuver. After the Residence is Demolished,the Proposed Septic Tank. Aerobic Tank &
Pump Tank must be installed prior to any other construction. House Construction may then take place up to
the North edge of the proposed Residence. Only after the vast majority of Construction of the Residence is
complete, can work be done on the Disposal Component of the Septic System. The Installation of the Pressure
Dosed Gravel Bed & associated work can then proceed. During the construction of the House, the Soil in the
Primary & Reserve Areas must be protected from damage and compaction from trespass by vehicles (which
should be kept to the Driveway Area to the East). Material Storage, and foot traffic by those working on the
Site. This can best be done by laying down Plywood and rubber mats, or some combination thereof, which
will prevent the compaction of the soil below, as this activity will occur BEFORE the Disposal Component is
installed, Inspection of this covering, including a barrier to vehicular traffic must he inspected & approved by
this Designer PRIOR to the commencement of construction.
In all of this. Designer Oversight is IMPERATIVE to insure that the Septic System is installed
properly and in the proper order. In construction of the Deck on the South side of the Residence, the deck
must be constructed in a manner where ALL the Septic Tank Risers are easily accessible. This can best be
accomplished where portions of the Deck are made"removable". Larger Sections made with hinges and
recessed handles is probably the best way or simply sections that can be lifted out and removed.by hand.
These"Explanatory Notes" are important not only to explain and justify the means & method of
construction, but also to serve its a guide for those installing the Septic System. As such, they must be made a
permanent part of the legal record, along with the Regular Application forms. Designer OVERSITE is critical
during the construction process, to insure that the Components are properly installed and constructed and that
no mistakes or misunderstanding occur.
Fvwpk
REVISED: April 22, 2026
INTRODUCTORY NOTES:
The Purpose of the following Notes are to insure that the Drainfield area is carefully Cleared and
Prepared for Drainfield Use and the Drainfield is Properly Installed in the Native Soil. It is the
intention of this Designer to insure the Optimum Performance of the System by preserving the
Soil Structure and Porosity inherent to the Site. Although each Site and Situation is different, the
Principles and Procedures outlined below will apply to MOST situations. If additional Instructions
are necessary, they will either be Attached or written on the DESIGN. Waivers attached to the
Building Site Application, may, (if accepted), modify the required setbacks specified in these
instructions. Where waivers are applicable, the design will modify site requirements.
SPECIFIC INSTALLATION INSTRUCTIONS:
1. ) In general, the SHALLOWER the percable soil, the more carefully the Drainfield Area
must be Cleared. Excessive Bulldozing can not only lessen the Percable Soil Depth,
but also the Porosity through Compaction and Destruction of the Soil Structure.
A.) When the Proposed Trench Depth is ONLY 12 , it is STRONGLY RECOMMENDED
that the Drain Field Area be Cleared of Brush, Debris, and small trees BY HAND, so
that NO Percable Soil is Lost or Disturbed in the Process.
B.) Trenches with Installation Depth greater than 12-18"are less susceptible to Damage
during the Clearing Process, but are by no means immune to it; especially if the
Clearing is done during wet weather.
C.) In Preparation for Building,the Economy of Clearing the Entire Building Site all at
once is obvious. But, if clearing is to be done during the Winter Months, or during wet
weather, the Clearing could result in the Literal Destruction of the soil in the Drainfield
Area; thereby leading to Premature Failure of the Drainfield, or the Required
Installation of a much more expensive Alternative System such as a Mound or Sand
Filter Pre-Treatment. In such cases, it is advised that the Clearing of the Drainfield
Area be POSTPONED until Dry Weather, when the soil is in a DRY state.
D.) UNDER NO CIRCUMSTANCES are Burn Piles to be placed on top of a Drainfield
Area. Burn-piles destroy the soil in a Drainfield Area in 3 basic ways; 1.) The Heat
can destroy the soil structure down to a depth as great as 4-5 feet BENEATH the
burn-pile, 2.) The Ash introduced into the soil acts much like Silt or Clay, sealing the
pore space between the larger soil particles in the Trench, inhibiting the dissipation of
the effluent, and 3.) The Compaction by heavy Machinery of the Soil in and around a
burn-pile as it is pushed together when Burning.
2. ) The Trenches are to be installed Parallel to the contour of the Slope so as to maintain
a uniform depth in the Native Soil. Where there is sufficient Depth of Native Soil, strict
adherence to the contours is not as critical. Where there is a discrepancy between
the Design (If Trenches are shown), and the Actual Contours, the actual contours are
to be followed.
3.) The Trenches are to be installed with a MINIMUM of 2 Feet of Undisturbed Soil in
between Trenches. This is equivalent to 5 foot centers for 36"Wide Trenches.
Greater distance between trenches is permissible, desirable and/or necessary in
some cases.
4.) Installation of the Trenches whether STANDARD TRENCH (w/4" Draintile) or
PRESSURE DISTRIBUTION, is to be in accordance with the ATTACHED Cross-
Sectional View.
5.) METHODS OF DISTRIBUTION:
A.) STANDARD DISTRIBUTION with a Distribution Box("D-Box"):
1.) DRAINLINE SEGMENTS must be EQUAL in Length.
2.) The Drainlines are to be installed as LEVEL as possible, with a
MAXIMUM amount of drop or"FALL" in the Drainlines of% (ONE-HALF) inch.
3.) Under NO Circumstances are Standard Distribution Systems to,-
be Intermixed with SERIAL DISTRIBUTION ' '
( 2)
B.) SERIAL DISTRIBUTION w/Connections made"In-Series"via "STEP-DOWNS":
1.) The Lengths of the Trenches MAY VARY, but MUST TOTAL the REQUIRED
Lineal Feet specified.
2.) The Drainlines must be Installed ABSOLUTELY LEVEL, and In-Series.
3.) The STEP-DOWNS are to be constructed in accordance with the Cross-
Sectional View provided and procedures Outlines in the MANUAL OF
SEPTIC TANK PRACTICE.
NOTE: Alteration of the Length of Individual Drainline Segments from that shown on the design in a
Serial Distribution System is within the legitimate discretion of the Installer and will NOT affect the
Designer Warranty of the performance of the System. Due to the saturated conditions & the Resultant
severe Biomat Formation in the 1st Trench, a "Junction Box" @ the head of the system is specified. In
this Junction Box, effluent will be directed to the uppermost Trench primarily. When the Biomat becomes
severe, the 1st trench outlet can be capped and a 2nd Outlet"Opened"that directs the effluent to the 3rd
or 4th Trench in series. Left open for a period of time this will allow the 1st trench to"dry-out"and the
Biomat to dissipate; afterwhich, the 2nd outlet can be capped& the 1st Trench returned to service. The
effluent in most Serial Distribution Systems NEVER ever reach the lower(3rd &4th) Trenches,
C.) PRESSURE DISTRIBUTION:
1.) Trenches are to utilize 718"Washed Gravel instead of Standard Drain rock.
2.) A Hydro-Splitter Valve Assembly may be used at the head of the System if
ALLOWED by the Designer.
A.) It allows greater flexibility in the placement of the Trenches,
particularly in uneven terrain.
B.) PVC Gate Valves are REQUIRED for the adjustment of the Head
Pressure. NO PVC Ball Valves are allowed.
C.) An INDEXING VALVE is PREFERRED for the Distribution of the
Effluent to the trenches for a variety of reasons:
1.) More EQUAL Distribution over the entire length of the lateral
2.) A prolonged "Rest" Period for absorption between Doses.
3.) Easier to equalize Head Pressure between Laterals
Trenches installed w/an Indexing Valve must be of EQUAL Length.
An Indexing Valve must ALWAYS be @ a HIGHER Elevation than
The Pump Tank and Drain Field Trenches or Beds.
3.) Where Lateral Length MAY VARY, the (a.) the number of Orifices must be
proportional to the Length of the Trench, and (b.) the Head Pressure of ALL
Trenches must be EQUAL.
4.) Either 9"Gravel Depth or 12"Gravel Depth Trenches may be installed. 12"
Gravel Depth is PREFERRED,where possible.
5.) Pressure Distribution Systems are susceptible to clogging from suspended
solids. In addition to a 2 Compartment Septic Tank, the following is REQUIRED to
minimize the risks:
A.) A Screened Outlet Baffle is REQUIRED at the Outlet of the Septic
Tank. [4"x 6"TUFTITE is usually specified]
B.) A minimum Pump Tank Size of 1150 Gallons is REQUIRED for up to
a 4 BR Capacity Residence (larger if more than 4 BR's, or specified
on the Design).
C.) The Effluent Pump is to be installed in a 5 foot PVC Pump Vault = .
within the Pump Tank. This vault is to have 2" Holes drilled 12-18" -- _�-
ABOVE the Bottom of the Vault, and the Floats are to be set so that
the Effluent NEVER drops to the level of these holes. No screen is
To be installed in this Vault. An Orenco "Biotube"Pump Vault may
also be used in lieu of the PVC Pump Vault OR a Flow Inducer may
be installed, provided that the Intake is 18" above the Tank Bottom. -,
D.) No PVC Pump Vault is required for Filtrate Pump Tanks following
Sand Filter Pre-Treatment.
(3)
6.) As is the case with Gravity Trenches, the Gravel is to be covered with Filter
Fabric PRIOR to Backfilling.
7.) Monitor Ports to check on "Ponding" in the trenches are to be Installed in
each Trench, and 10"Valve Boxes are to be Installed to allow access to the
Ponding Ports& Lateral Ends for periodic maintenance.
8.) ORIFICES are to be at the 6:00 Position (DOWN) or @ 12:00 Position (UPWARD). If the
Orifices are @ 6:00, the End Orifice must be @ 12:00w/an Orifice Shield. Conversely, if the
Orifices are @ 12:00,the end Orifice must be at 6:00 to allow Drainage between Doses.
9.) All Pressure Distribution Systems require a Control Panel for time dosage. An ORENCO
"MVP"Control Panel is specified whether for Sand Filter Pre-Treatment, Pressure Distribution
Mound, Pressure Distribution Drainfield, or ANY combination thereof
D.) DRIP IRRIGATION
1.) Drip Irrigation Effluent MUST be Pre-Treated preferably through a Sand Filter,
Or an AEROBIC Pre-Treatment device at a MINIMUM Prior to Disposal.
2.) Driplines must be Pressure Compensating so that Emitter Discharge is not
Affected by elevation differences.
3.) Driplines and emitters must be spaced in accordance with the distances
Specified in the Design & in accordance w/the State Guidelines.
4.) In general, Driplines are to be installed parallel to the Existing Ground
Contours.
5.) Unless specified to the contrary in the Design Dripline Depth in the Native
Soil is to be 6".
6.) Where an Aerobic Pre-Treatment Device is used, the Return Piping is to be
Routed to the Pump Tank and NOT to the Pre-Treatment Device, as it has
Already been treated.
10.) If COVER Material is to be installed over the TOP of the Drainfield Area, it is to be
installed to the Depth specified on the Cross-Sectional View. Unless specified to the
Contrary, Cover Material is to consist of a COARSE Sandy Soil to Promote Aerobic
Bacterial Conditions. Prior to Backfilling and/or the Installation of the Cover Material,the
Gravel in the Trenches is to be covered with FILTER FABRIC. Under Certain
Conditions, the Native Soil may be used as Cover Material or a Portion thereof. In such
cases, the suitability of the Native Soil as Cover must be determined by the DESIGNER.
11.) Where a Curtain Drain is REQUIRED, Installation is to be n accordance with the Location
indicated on the Design, with a MINIMUM 10 Foot Setback to Drainfield Trenches below.
12.) All Downspout and Footing Drains must be diverted away from the Drainfield Area, and
ALL"Impervious Surface Drainage Systems" must maintain a MINIMUM 30' setback.
13.) NO Drainlines are to be installed beneath any Compacted Driveway or Parking Area
Surface.
14.) The Drainlines are to maintain a MINIMUM 5 Foot Setback to ALL Property Lines and
Lines of Easement, a 10 Foot Setback to the House, Waterline, and Curtain Drain (Uphill
side); and a 30 Foot Setback to Curtain Drains and Footing Drains DOWNSLOPE from
the Drainfield AND to Seasonal Surface Water. Drainlines are to maintain a MINIMUM
100 Foot Setback to all Wells end Permanent Surface Water (Salt or Fresh).
15.) Where a Gravity System has been indicated, but the Plumbing Stub and Septic Tank are
TOO LOW to install the Trenches AT the Depth Specified, an EFFLUENT PUMP will be
REQUIRED.
16.) Where SAND FILTER PRE-TREATMENT has been proposed, SUBSTITUTION OF A
"Pre-Fab Kit" in place of the Proposed Design MAY VOID the Designer Warranty for that
Portion of the System where Substitutions have been made. Product and INSTAtABR
Warranty should cover the Substitutions made, but in ANY case, TREATMENT`
STANDARD"B"Effluent Quality MUST BE MAINTAINED without Chlorination.
(4 )
17.) The RESERVE AREA (or Balance of the Drainfield and Reserve Area NOT used for
Primary Drainfield Purposes), is NOT to be Encroached upon, or disturbed in any way
that is NOT Consistent with its Designated Use.
IMPORTANT NOTE: Approx. 90 to 95% of ALL Drainfield Failures of Relatively NEW Septic Systems is
Due to Damage and Destruction done to the Drainfield Area during the initial Clearing, or in the Process
of Construction-Preventable Failure, in short, that could have been AVOIDED, if Precautionary
measures had been taken.
Unless Specified to the contrary on the Design, Gravelless Drainfield Chambers such as Infiltrators are
NEVER to be substituted for Gravel Trenches or Gravel Seepage Beds. As "Nature abhors a vacuum",
Nature also abhors large void spaces. Over time Gravelless Chambers inevitably end up filled with dirt
and lose all of the void space between the Chamber Walls. In addition; the placement of"Native Soil"as
Backfill up & over the Louvered sides of the Chambers constitutes "disturbed soil"without structure .as
such, it loses its ability to readily transmit effluent to the structured soil at the sidewall of the trench. With
a Gravel trench, this structured soil @ the sidewall is readily available and the gravel is easily able to
transmit effluent through to the soil surrounding the trench. Also, while Gravel Trenches can receive
oxygen from the soil above the Trench & hence promote aerobic bacterial action in the trench, the Top of
Gravelless Chambers consists of airtight Plastic, effectively preventing oxygen from reaching the
Infiltrative Surface from the soil above and promoting the Anaerobic Conditions conducive to Biomat
formation. For these reasons, Gravelless Chambered Drainfield should NEVER be used except where it
is literally impossible to get gravel to the Site. If that were truly the case, Drip Irrigation Disposal would be
a superior choice for effluent disposal,
IMPORTANT ADDITIONAL NOTE:
As Time Dosed Septic Systems are limited to pumping ONLY the Daily Volume of effluent for
which the Residence or Establishment is rated for, they will NOT pump excess effluent or water that may
enter the Septic System through ground water intrusion or Excess Use. As such, ALL Tanks should be
tested for Water tigntness PRIOR to FINAL Inspection, Certification, or completion of the Septic System.
Inlets and Outlets of ALL Tanks must be capped I Sealed and the Tanks filled with water up into the PVC
Risers. The Water levels are to be measured and Re-measured the following day(24 Hours MINIMUM).
If there is a CHANGE in the Water Level, then there is a leak and it must be fixed before the System is
certified. Tanks are REQUIRED to be Watertight, but leaks can occur from insufficient sealing of the
Risers and Pipe connections in addition to flaws in the Tank itself. If the leak is in the Tank itself-
independent of the Riser, then it is the responsibility of the Tank Manufacturer. If the leak is elsewhere, it
is the responsibility of the Installer. ALL Tanks, including Plastic Tanks should be tested, as Plastic
Tanks sometimes have defective seams or come with holes punched in them during transport. High
Water conditions due to leaky toilets or excess use by the Homeowner can easily be discerned and
corrected. Tank leakage is difficult to discern and correct once the system is installed and in use. It is far
easier and preferable to determine this during Installation and PRIOR to occupation and use of the
facilities.
REVISED: April 22, 2026
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AEROBIC TREATMENT TANK DETAIL FOR
NuWA TER BNR-500 TREA TMENT UNIT
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Plant Installation Instructions
Installation of the Treatment Tank(see tank drawing in appendix)
Review permit/design conditions accordingly,and decide on an appropriate location for the tank(s)
which is accessible to the home sewer outlet. Excavate a site which is approximately I' larger than the
tanks at a depth that will allow proper coverage of the system. The building sewer outlet will determine
the minimum depth of the plant. Make sure you have a smooth level surface for the base of the unit.
The tank must be placed on stone-free undisturbed soil or fill sand/pea gravel over stony soil (stones
greater than 1/2"diameter). Place the treatment tank into the excavated site and double check for level.
Carefully backfill around the unit, gently compacting the soil as well as possible, and leaving the inlet
and outlet holes open for connections. Connect the influent end to the building sewer outlet. Connect
the appropriate discharge to the effluent end of the plant. Only 4" schedule 40 pipes or equivalent per
code should enter and exit the unit until undisturbed soil is reached. Inlet and outlet pipes should extend
at least 3" into the system,with a baffle on inlet as well as (double-tee) baffle assembly on outlet.
Carefully install treatment unit components(next section),then install electrical components in
accordance with local electrical codes. Fill the unit to the level of the effluent discharge. One by one,
turn on each electrical component and verify that there are no leaks,air or water,throughout the system.
If a leak is detected, repair and retest. After all required health department or electrical inspections are
fulfilled, carefully backfill the excavated site. The first 4" of backfill around and on top of the tank is to
be the same as the backfill under the tank. Visually inspect all above ground connections, and double
check riser perforations for sign of misplaced boot seals, etc. Connect the clarifier tee to the effluent
pipe inside the unit making sure it is in the level vertical position. Install riser vent or vented lid at the
digester access riser,or as an alternative,vent at clarifier access if tank is properly constructed with free-
moving air between digester& clarifier.
Installation of Components(see assembly drawing in appendix)
Read the equipment parts list provided in the owner's manual and verify that all required parts are on
site. Before the system package is installed inside of the unit,each component should be carefully
inspected for damage or defects. Never install damaged components inside of the treatment system.
the dual port linear blower should be no more than 50 away from the plant and in a well ventilated
area. The precaster will typically install a tank adapter ring onto the lid of the tank, which works well if
there is 12"or more of riser height available to accommodate the blower, if the tank is shallower.
blower can be installed at remote location (either in separate ventilated basin or crawlspace, etc.).
Air line to diffusers should be made with I" PVC schedule 40 pipe. Make sure the pipe is stable and
resting on the excavated surface as opposed to hanging. All PVC glue fittings should be connected
using approved PVC primer and cement. Use provided adapter fittings to adapt from blower to I" PVC.
as outlined in assembly drawing. A hole saw will be necessary to tap through the riser(s). and rubber
grommets(recommend pull thru Polylok grommets) will be necessary to keep riser perforations
watertight. As per the assembly diagram,the diffuser manifold assembly will hold the diffusers off the
bottom of the tank approximately 4 inches. The screw-in diffusers are placed parallel to and
approximately 4"away from the inter-compartmental wall Verify that the clarifier tee assembly is
certieal and level for correct operation. The second aerator port marked "skimmer' will adapt
Schedule 40 PVC as per the assembly diagram. This line feeds the airlift for the sludge recirculation.
The I" PVC recirculation inlet is installed vertically in the inlet of the clarifier, 4" from the angled
hopper floor as measured from the lowest measurable point. Tic the ''h" skimmer airline into the I' x '/f'
tee exactly 8 inches above the recirculation inlet. The recirculation line then runs vertically up to a point
as shown on the tank diagram above the liquid level, and then runs horizontally back across the digester
to the pretreatment tank. Upon entering the pretreatment lank, immediately adapt up to 2" Schedule 40
PVC with the provided adaptor this is necessary to avoid splashing at the return inlet). Then run the 2`
PVC pack to a point visible from the access riser above and into the 2` San-foe provided. Extend the 2"
PVC down into the pretreatment tank as shown on the tank diagram. The Aerator and alarm control
panel should be installed in areas where their function will not be hindered.
li
Installation of low air alarm (see assembly drawing)
The low air alarm is built into the standard NuWater ATU combo timed dosing panel. The small
diameter flex air tubing attaches to the barbed brass tank tap on the side of the blower,and adapts up to
'G PVC with the provided fittings (see assembly diagram). The ¼"PVC runs underground to the
location of the ATU combo panel, then elbows up and transitions to UV rated (gray conduit) 'h" PVC.
which runs up to the base of the control panel. The provided fittings adapt back to the small diameter
flex tubing at the base of the control panel. Apply a ring of silicone sealant at the perforation. The
fittings will effectively pinch the bottom wall of the control panel, forming a water-tight seal,as shown
on the assembly diagram. The flex tubing should do a% loop inside the panel to allow slack for future
removal and repositioning,and tie in at the barbed air switch.
Wiring
Separate circuit is required for the controls. Timer controller at panel controls effluent pump on/off.
See wiring diagram. Outdoor plug receptacle independent of controls required in blower housing,
resulting in constant power to blower(blower has internal controller for skim cycle). All electrical
wiring shall conform to the requirements of the NEC(National Electric Code)and all other standards
under thejurisdiction of the state. All external wiring must be installed in approved conduit.
Salcor UV light for Treatment level"A" systems
For systems meeting treatment level "A", UV disinfection is required. The Salcor 3G UV light is
commercially available at most pipe supply houses. Refer to installation instructions provided by
Salcor. It is imperative that care be taken not to break the fragile UV bulb. The UV assembly shall be
installed in the inlet of the pump chamber. Use a reducing femco to suspend the UV assembly from the
6 inlet access, and install the ballast and controls just below final grade in a Electrical-style access box
(similar to a valve can but larger). Individual circumstances may prevent installation inside the pump
chamber, in which case the UV assembly can be direct-buried along the line between the treatment unit
and the pump chamber. The base must bear on native soil or on compacted granular fill.
Stan up
Initially the NuWater BNR system is to be filled with clean water. Once all the proper connections have
been completed and the tank is filled with water, the aerator is turned on. Cycle the airlift(see
instructions on Pg. 7, maintenance duties. #9), observe proper operation, then make sure to switch it
back to"auto". The system is now in operation. For the treatment plant to become biologically stable, it
will take four to sixteen weeks from first use to establish a population growth of microbes. It is
microbes from the waste stream which make the system operate properly.
Trouble Shooting
System has offensive odor, Check that no harmful chemicals have been permitted to enter the system.
( heck for aerator operation including a restricted filter(.see.system not aerating.) Check against free-
flowing air movement between the digester and the anaerobic pretreatment tank (should be somewhat
airtight between these chambers). Check to see if the system has been pumped recently or large surges
have entered the system, allowing high concentrations of anaerobic waste into digester.
Aerator is not running: Check circuit breakers for failure. Plug into receptacle or extension cord known
to be working. Check for proper wiring connections by removing four screws at base of blower and
checking connections where the power supply connects to the motor(connectors are within small black
sleeve). Check small overload shear pin for failure (see blower manual or HiBlow website for
instructions). If the prior remedies are not sufficient, replacement might be necessary. Electrical failure
typically will not be remedied by rebuilding the blower pump.
Trouble Shooting Continued...
System is not aerating: Check aerator for operation. Check aerator filter element for restrictions.
Visually check airline and diffusers for broken connections or restrictions. Check aerator pressure
output using a standard low pressure gauge and compare to manufacturer's specifications. If aerator is
underperforming, it likely needs to be rebuilt or replaced.
Audible/visual alarm sounds: Verify that the aerator is working. Check for dislocated airlines. Check
water level, making sure tank is full of water to create backpressure. Check for water in blower.Check
for water in alarm tubing, and blow out if necessary. If all appears normal, panel may need new air
switch.
Aerator is loud: Linear compressors are made to function quietly. If the following remedies do not
correct the problem the aerator may need to be rebuilt or replaced. Check for vibrations against solid
structures. Check filter cover for proper torque.
Maintenance Requirements
Ongoing maintenance contracts are required for advanced treatment. The installer of an OSSDS shall
either include the first two years of maintenance with the price of the installation, or as an alternative,
arrange for the maintenance to be provided by an approved 3b party maintenance provider. This must he
spelled out on installation contract. Maintenance provider shall keep records of, and submit maintenance
reports to the permitting authority and the owner of the system. After the first two years,the system
shall be maintained at an annual interval.
Maintenance Duties:
I. Remove filter element from aerator and clean with soapy water. Dry and replace.
2. Test high water alarm and low air alarm for visual or audible warning function.
3. Check components for buildup such as ant beds or grass. Keep all vents clear of foreign materials.
4. Perform sludge measurement in trash tank. Arrange for pumping if within 12 inches of outlet (more
than 24" total sludge depth).
5. Observe performance of digester.check for consistent, even rolling pattern of wastewater.
6. Perform settled solids check from digester. Have tank pumped if settled solids reach 40%.
Perform visual check of discharging effluent for clarity,and check for rotten egg odor, which would
signify improper treatment of wastewater.
8. If system is equipped with UV light, check and replace bulb if required.
9. Test operation of sludge return by temporarily switching blower to ' manual on the unmarked switch
inside the cover. Stand back from the return inlet to the trash tank, as there can be a small splash upon
startup of the recirculation. Check for consistent flow intermixed with bursts of air. Be sure to switch it
hack to .. (&• when done, and obscrve the dieester diffusers resume their airflow.
10. Inspect remainder of disposal system per county requirements, including but not limited to:
Test pump discharge rate,test alarm, inspect disposal field, flush lines if necessary,etc...
Specifications
Designation: Nuw'ater BNR 500 gpd, single family wastewater treatment system
Treatment capacity'clzss 500 gallons per day class I
ROD Loading 500 gpd 1-1.5 lbs/day
Electrical requirements 115 volLs 50/60
Aerator
Dual Port linear blower
Panel NuWater ATl7 simplex combo panel
d
i ,
Operating Instructions
Once installed, the blower will run twenty-four hours a day; the system will operate with a minimal
amount of attention. To ensure proper operation and minimize maintenance,the following materials
should not be permitted to enter the system:
1. Strong disinfectants or bleaches except in moderation such as cleaning and normal laundry. Be
conservative.
2. Oils, grease, and chemical waste.
3. Discharge from water softeners.
4. Disposable diapers, condoms,tampons, cigarette butts,etc.
5. Items which are high in phosphates such as certain laundry detergents and dish washing soaps.
Periods of Non-Use
the NuWater BNR has been tested for short periods of non-use, but aerobic treatment units require
organic matter to be introduced periodically to function properly. If circumstances occur where the unit
will not be used for long periods of time, bioremediation is recommended to seed the system before
functional use begins again. Please consult your representative for proper procedures. If the system is to
he transferred to new owners it is recommended that the system be completely pumped and cleaned.
Contact Information
if service is required it is advisable to contact your nearest NuWater BNR representative. If service is
unavailable refer to the system data plates located on the aerator, audio/visual alarm, and under the
system access port for contact information. The data plates contain manufacture information including
telephone numbers and address. Have your model number and serial number on hand at the time of your
call. The serial and model number can also be located on the data plates.
NuWater BNR Components
While all components are durable, it is recommended that care be used when unpacking the components.
Always open box in an upright position to avoid dumping of components. Visually inspect all
components for breakage and notify ENVIRO-FLO Inc. for replacements if damage is present. Never
install damaged components!
0
CHARLES H. POLLMAR & ASSOCIATES
PRESSURE DISTRIBUTION-GRAVEL BED
SPECIFIC INSTALLATION INSTRUCTIONS:
I.) The Gravel Bed must be Excavated and Installed ABSOLUTELY LEVEL and of the Dimensions shown on the
Design.
A.) The Pressure Distribution Piping within the Gravel Bed is also to be installed LEVEL and in the
Configuration shown on the OVERVIEW and CROSS-SECTIONAL VIEW Diagrams.
2.) in general.the Gravel Bed is to be installed in accordance with,and at the depth specified in the
Cross-Sectional View. The MAXIMUM Depth of the Gravel Bed IN the native Soil is a function
of the Percable Soil Depth and the Slope; Specifically,the elevation differences IN the Native soil between the Upper
and Lower edges of the Gravel Bed,as indicated ion the Cross-Sectional View. On Level ground.there will be NO
elevation differences and the depths will be the same. On Sloping ground,the Upper edge of the bed will be deeper
than the Lower side.
3.) The Gravel Bed is to be excavated ONLY by a BACK-HOE or an EXCAVATOR. Under NO Circumstances is the
Excavation to be done by a Bulldozer. Bucket Louder,or anv other piece of Heavy Machinery that will sit on or cross-
over the Bottom of the Gravel Bed Excavation.
4.) As most of the Absorption of the effluent takes place through the BOTTOM AREA of the Gravel Bed.CARE MUST
BE EXERCISED to protect this area from Compaction,even from foot traffic. To insure that the Interface(BOTTOM
AREA)is Protected,Gravel should be installed to a depth of several inches as soon as possible after the excavation has
been made. The Basal Area should be raked PRIOR to the Installation of any Gravel, if Foot Traffic has trespassed on
the Basal Area. Ideally,No Foot Traffic has occurred in the Bed&the grooves or furrows left by the excavator teeth
are still intact.At that point gravel should be installed to preserve the furrowed interface. In General,to avoid
Compaction and Smearing of the Interface Areas, Excavation and Installation of the Gravel Bed MUST take place
ONLY during Dry Weather.
5.) The Excavated Soil from the Gravel Bed Excavation is to be deposited and Mounded around the Perimeter ofthe Bed
(Particularly DOWNSLOPE)and LEFT IN-PLACE to increase the Percable Soil Depth Downslope: Help prevent
'Bleed-Out"along the Downslope edges, and to Retain the Cover Material.
6.) Unless specified to the contrary.NONE of the Native Soil is to be used as Cover or Backfill Material over the Top of
the Gravel Bed. The Cover must consist of Medium to Coarse Grain SAND,so the evaporation is promoted. The
Cover Material is only Required directly over the TOP of the Gravel Bed, and is to be installed to the Depth indicated
on the Cross-Sectional View.
A.) The Use of Cover material is meant to apply to shallow soil situations,and does NOT apply,when soil
depth is not a concern.
B.) A small amount of"fopsol l(4"+I-)'nay be used as a portion of the Cover Material to promote the
growth of vegetation over the Gravel Bed Area,
7.) The Cover over the Top of the Gravel bed should he Mounded or Sloped in such as Manner that Precipitation is able to
Run-off and does NOT accumulate over the Gravel Bed Area.
S.) A Transit.Tripod Level.or Laser Level should be used in ALL Phases of construction to insure that the Installation is
as LEVEL as Possible.
9.) The Gravel Bed must be covered with Filter Fabric PRIOR to Backfiling with the Cover Material, Filter Fabric of
single piece construction should be used as opposed to several overlapping layers of3 or 4 feet wide fabric.
10.) It is REQUIRED that 4"Ventilation Pipes be installed IN the Gravel and in accordance with the configuration shown
on tie Design: to promote aerobic bacterial action within the Gravel Bed.These Ventilation pipes are to be
independent and separate from any of the Pressure Distribution Piping.are to be vented(Open to the air) preferably in
a"D-Box"at opposite Ends of the Gravel Bed w.'a Steel Grate @ grade. .
1.) The Head Pressure and Dosage Volume MUST BE checked and verified PRIOR to Backfilling.
Client: DITZLER
PRESSURE DISTRIBUTION GRAVEL BED SPECIFICATIONS
NATIVE SOIL APPLICATION
A. ESTIMATED SEWAGE VOLUME: 240 Gallons/Day
1. 2 Bedrooms X (120 Gals/Bedroom/Day)= 240 Gallons
B. DRAINFIELD SPECIFICATIONS" " (As per Table VIII; Column B)
1. Soil Type: Gravelly Sand—Type 3
2. Infiltration Rate of Native Soil as per Application= I-0 - GPD/F't.'
3. MINIMUM Trench Bottom Area REQUIRED= 240_= 240 sq.0.•
L0
4. GRAVEL BED DIMENSIONS:
A. Width = 7.50 Feet
B. Length = 32.00 Feet
C. Depth =._12 Inches /'
C. DISTRIBUTION SYSTEM SPECIFICATIONS: 5100203
1. LATERALS: :...... .. s a. tutuMAR.
A. Number of Laterals = 6 (_3 Sets) ass
B. Lateral Length= 15 Feet
C. Pipe: 1 'G"PVC Plastic Pipe(Schedule 40)
2. ORIFICES & SPACING:
A. Orificc Size= 3/16" Diameter
B. Orifice Spacing: 24_" Intervals
C. Orifices per Lateral= 8
1. TOTAL Number of Orifices = 48
D. Orifice Position=6:00(DOWNWARD)
1. END ORIFICES^a, 12:00 Position(UPWARD)w/ORIFICE SHIELDS
3. MANIFOLD: (Conversion from 2" to I Y,'Diameter to be made A, Manifold wi l Y."
A. Diameter= 2 Inches Standpipes to Laterals)
B. Length = 5 Feel A/-
C. Position = BELOW Level of Laterals as indicated on design.
D. DOSING DATA:
1- Liquid Capacity of LATERALS = 5.8 Gallons
A. Computation: 15.00 Feet(Lateral Length)
X __6 Number of Laterals
90.00 Feet X(.064 Gals./Ft.)=5.76 Gallons
2. DOSING VOLUME:
A. MINIMUM(S x INTERIOR Volume of Laterals) 29 Gallons/Dose
B. VOLUME,at Y: Gallon/Orifice/Cycle= 24 _Gallons/Dose
C. RECOMMENDED: 40 Gallons/Dose
E. PUMP DATA:
I. REQUIRED Pump Capacity= 50'• Gallons/Minute^s )RECOMMENDED CAPACITY)
A. Computation: .59 DISCHARGE RATE(Gals /Orifice/Minute)
X 48 TOTAL Number of Orifices
28.32 Or 30 G.P.M
2. TRANSPORT PIPE:
A. Diameter= 2 Inches
B. Length = 80 Feet(ESTIMATED)
3. PUMP HEAD PRESSURE:
A. Elevation Difference = 5 Feet(ESTIMATED)
B. Residual Head REQUIRED=2 Feet
C. Friction Loss in TRANSPORT PIPE= 1.50 Feet
1. CALCULATED VALUE: 1.457172896
D. Friction Loss in DISTRIBUTION NETWORK:_ .60 Feet(Calculated:.587689741 Feet)
F. Computation: 5.00 Feet(Elevation Difference)
+ 2.00 Feet(Residual head REQUIRED)
+ 1.50 Feet(Friction Loss—TRANSPORT PIPE)
+ .60 Feet(Friction Loss—DISTRIBUTION NETWORK)
9.10 Or 10 _F'eetTOTALHEAD
4. SUMMARY: The pump chosen must be capable of pumping at the Rate of 30 Gallons per
Minute against a Head Pressure of approximately 10 Feet.
NOTE:
A 6"x 4"TUFTITE Outlet Baffle Screen is Required in the Septic Tank& 5 foot PVC Pump vault
(Unscreened); Orenco Biotube Pump Vault; OR a Flow Inducer with the Intake 18"above the Bottom of
the Tank is Required in the Pump Tank. The Pump is to be controlled by a Programmable Timer in a
Panel also equipped with a counter and alarm. Tinier is to be set by Designer at time of Construction,
An ORENCO MVP Panel is specified for this Application—NO Substitutes. If preceded by a Sand Filter,
the Filtrate Pump will be ON DEMAND, but the Dosage Volume will be adjusted and set through the
"Pump Run Time",which is an adjustable parameter.If NOT preceded by a Sand Filter,the Timer will
directly control the Dosage Timing,Duration,and frequency. If a Nu Water Aerobic Pre-Treatment is
Specifed,an MVP Style Panel is available& MAY be substituted for an Orenco MVP Panel.
This Designer also REQUIRES that a"REDUNDANT OFF" float also be installed along with the High
Water Alarm and Operational Floats(3 Floats Total)—NO EXCEPTIONS! Redundant OFF Float must be
installed ABOVE the Pump Intake Level in ALL situations.
10" Carson Valve Boxes are specified over the Lateral Ends& Ponding Observation Pmts(NO
EXCEPTIONS). Only Rhombus Floats or Orenco"Click Tight" Floats are to be installed.Other brands
and styles have proven to be unreliable. -
2 - -
41' PONDING
OBSERVATION PORT
CROSS - SECTIONAL VIEW 10" VALVE BOX
/LID
r/ii-Ti j7i777Tl�frlii ®
GRAVEL BED
OR TRENCH
4" SCREW
NOTE: CAP a HUB 'I
4" SLIP CAF' MAY BE ❑ /
USED, PROVIDED THAT
THE 4" PIPE 1S � �: f
"NOTCHED" ( 4 CLTS) �
R A HANDLE IS
SCREWED TO THE TOP 4" - 3034 r r,atE + ••�°
OF THE SLIP CAP PVC SEWER
s°Po
fr
y► FILTEP, FABRIC a nn�
_ AROUND BASE W/GRAVEL
__ INSIDE BCX/ /// TRENCH. oR BEG
1 O P OF
/ PVC DRAIN i /
PIPE
�� RE-BAR OR / /
// /' SMALL PVC /
PIPE / //
/ // // 7/ /a - - - // //
SAND OR SOIL INTERFACE
OPEN a
INTERFACE
LATERAL END ACCESS PORT
CROSS - SECTIONAL VI Ew 10" VALVE BOX
w/LID
ii NAL iii� �Rii
NOTE: ( P THREADED
VALVE BOX MUST BE
UNDERLAID & WRAPPED
WITH FILTER FABRIC
TO PREVENT DIRT
INTRUSION INTO THE
BOX , 1-2 INCHES OF
GRAVEL SHOULD BE
INSTALLED ON TOP I VIII
OF THE FILTER
FABRIC INSIDE THE
Box ,
NOTE.
A THREADED CAP WITH
A 3/16" DIAMETER
ORIFICE IS TO BE LEFT
IN THE BOX FOR HEAD ld" OR 1 °
PRESSURE TESTING SCHEDULE 40 PVC
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