HomeMy WebLinkAbout93-05 DAVID & RUTH MANTHEI REZ (8)j"'t "vale FJncl level 3 " cetrenchas
Ell"Mr-lare trench bottcr- and sides In CICCOrdonce With
sr get fj"('j loc'ol regulations 'r""ItratOr SYS10rns recommends
,r'71k,t'9 -ldeW011 and botfcrr ',ififfrotwe s-jrfaces to eliminate
Sr. f:'41; r " r I Q
SPI'%h plate Of open end plate,
LJ (11-4 C-,nd IniOt Ond Avithout Interlocks)
of �r,.! UMTPA,Tr`;rill chcrrjt�, -$,"h splash olote extending
inti-, Atilt
, " Place first unit in the ln!et end of trench with Interlocks
ownstream
LIZ lun distribution Pioo thr,,%,gh inlet Opening In end Plate
but not beyond splost, Plate, Si -,gig screw may be used to
hola in place PIPe does not normally run the length of
system.
M -A
WA Slip INFILTRATop-
units together, fully en.
Qag.ng interlocks to form
zfWMd trench length,
0. To ke-'-nO joints from,
tc"I'Mg,00art during,
C'r'vsfrUCtJOh and for
"qOx"-
num Strength - joints
ay b-:1 screwed together
With 4 self drilling screws.
b- llerlcll glade can be
checked VAth 0 level or
su'Veying e(luipment.
U Screw Closed end Plate In O;last unit
to hold In place. NOTE: For seria",.�'",ut` 100P the
trenches together, use an open erd L)joj(- k1t tie jown_
stream end of the trench, and rur pipt) trtim '*),- Opening
to the next trench,
n -
WA Pill -4
- Wall area t,
top of Slots with native s:j
"Walk" fill into place to.
give Proper support of
sides, THIS IS VERY
IMPORTANT TO ACHIEVE
RJLL STRENGM
E Backfill to a minimum
of 12" Of cover after
compaction and settling
for H-10 units and 18" for
1-1-20 units.,40old large
rocks In the backfill mo
tertal. CAUtION: P:&d
vehicle traffic on system:
during construction Since
SdI has not se"Ied. This it
particularly Importar)i In
sand, Since loose sand
offers very little structural
support, Most states advise
k -j
-V0 11ju vehicle traffic to preventcoMooction cifftloinfil.
tra" urface. (Aller Proper depth
Ofcc, ors COMPOCted
and sei-,A, INFILTRATOR'" leaching chctn-,,0rS will�n
SUPPort � )hlcle %NeMghf not to exceed 146 W0, its I� O"K I le for
1-1-10 Unl!.j and 82,000 lbs, t> --r axle for units)
- SPECIFICATION
STANDARD
INFILTRATOR
HIGH CAPACITY
INEICTRATOR
SIZE
3` X 6W k'1'
33 lbs -
WEIGHT
27 lbs:
STORAGE
0.8113 (66 obl.)
W.703010000
i
i
Out aRpropriote sizer hole in closed end plate tot
di:;Wbution pipe.
Screw end plri it ,, o Inlet end (without interlocks)
,f f;rsl INFiLTRATOR- chu-j-jl✓er:
7-2
® rl °R2 rN® c I aAe
,.
2 RUS
US,BO. _ EC
Stormwater Manmeme t SVStAM 1ncfr 1r4# r%r%
MWM f'xcO-nate and level designated area
10 l inn perimeter of excavation with geotextile and
rrla�F� tyrosis layer of stone as specified by desiran
Slip INFILTRATORf" units together, fully engaging
interlocks to form desired bed length.
— nCcp JoinTs TrOm coming apart during construction,
Joints may be screwed together.
b. Bed laterals may be kept from shifting by tying bottom
flanges of INFILTRATOR'" units together using plastic
wire ties thru molded holes of random locations along
rows.
Fill side wall area to desired depth over top of units
with stone and cover entire Installation with geotextile as
specified by design.
u rr. J rairares are stepped to tit in either end of trench.
'jrjraer slop tits into inlet end and lower step in
dWnStreom end (with interlocks)
�r y= w;ofdloss driti acrd seif drilling screws work well for all
c-�nnr,;otrons.
Place first IN14LMATOP N unit in the inlet end of
exc?,zvotlon with interlocks downstream Place tows of
INFURATOPS'° next to each other to achieve desired bed
w,d1h Pun distribution pipe to rows of INFILTRATOPs"
according to design requirements. Pun distributicti pipe
through inlet opening in end plate. Pipe does not tun the
length of the °ystem.
Backtiii to a minimum of .I2.a of cover affer
compact Ion and settling for H-10 units and 16" for H_20
units, Avold large rocks in the backfill material. CALITION.
Avoid vehicle traffic on system during constructran since soil
has not settled. This is particularly important in Bond, since
loose sand otters very little structural support. Pc a large
bed that cannot be filled from the sides, use a light trace. » .
vehicle and be sure to maintain the proper min,mum of
compacted covet beneath frocks al .all times, 66 NnIt I Crk
soli for bdcktill to maximi ize oad cawing tj oo b lr
Awell graded ,oil contains on even distribution raf
101X fines, tanalno from silt thin, lrih'r nr4 i,, _.; t
iX�m
EngtM,n ing designs may require a multilayer system. Follow
w; y nstructiong adding additional tient of INFILTRATORS`:
mrpa; -ood try c stone layer in o similar manner. =Pers must be
pm_rpe,pdir,ulor to each other and must be constructed using
emi=t , To Insure proper support of the system and to
plreverA it I:ng, i th" to 2" crushed stone or 2" to 21V gravel
rnust brit useed
a, r2un distribution to the top tier only, with gravity
RJss` fill utton to the lower tiers.
b, Di; rtk>tJtfon need only be run to rows indicated by
P_ryq coring design, and not every row.
Sirglo Toyer systems maximize exfiitrotion area,
rrl n,:r>0je cornstruction costs,
;-,qp —tlJp la tiers may be used to achieve any
,}�r 4o/retention, goal, with minimum system footprint
.�:, �te�rft� sgan*�r lCynofi used beneath system.
B
MOVIWOR- �ruvE J SINGLE TIER
SNJIT �rroJEJmJf'. c3nJs�!EDs'i)tJE
C3Vis..
Jl;tABtJ: � ,
JIJtJtTA?<:'3!J" G;AMOR DOUBLE TIER,
rlAtmr ru - rens C�tJS 4M Vote
t
i
w4te41 t'pS.c�
IMITED WARMW
P,rMJEAMOtit mrWEWfTSs WltVtC -VW4SEREscras=..Wt6RAWtC3SWb1 4Gt10
r`M+tt7 THE W'IfiSO(tA,`NTFS&Gr�AI`+tYfi S4'lfC�k>rel?RlFSlttSfAlUfIOtJCN25X `.t'c6JY W40
7rit taEY3lEtYRf 'CSI tfK'�RENyJRtt+Gl�tAttrJ;tJuudfaNlJftNE54StEMdCC&Vt�t Vi
6rmt:.t�Jti>P1JCE VrfiSi+lLAiflKi+� IAWy C�R3E,^�« i�S91'.S itis k£G(IlhllCkVd
r+iI-AW*;E THIS WAPONTY P4 KW
1EAU+iO
JVMVE±OdghJITWPMIY
tO
Eliminate the problem oh. angling water on lawns and keep
stormwoter owav from toundat,4ns will) a^ IWILTRAt'C? `
chorrber downspout system TT o, sysfam =71ST'' rT701tS (vd-iere
aprr l,00 able) stotmwater techarge re•gulal , nS
��iIW�M�d 4 •k':#
Access port at the fop center C4 eoch un,t rrajy tJ , rut oat and
usedu :rventing .^soqctioncPro„flid cc n r.fl: n lntera 4”
the pipe from in=to tt-e V runt) ear
If you have spec a�l ptoblerrsor juestions e-o',lrlffftrotor
System= , Inc or local d,stribut r
b. ���
PAf. Nt�S. 4 "769, 664 ort &'017.041 car,9 i n tints ottw. f Iaf is ot-41nw•g;; � .}y° � � � r19�$ InfittrtiEtoS S1�stgrr>i; I��Nl1lJr059t
tri
�,4
LY .iii Fr�
��iIW�M�d 4 •k':#
Access port at the fop center C4 eoch un,t rrajy tJ , rut oat and
usedu :rventing .^soqctioncPro„flid cc n r.fl: n lntera 4”
the pipe from in=to tt-e V runt) ear
If you have spec a�l ptoblerrsor juestions e-o',lrlffftrotor
System= , Inc or local d,stribut r
b. ���
PAf. Nt�S. 4 "769, 664 ort &'017.041 car,9 i n tints ottw. f Iaf is ot-41nw•g;; � .}y° � � � r19�$ InfittrtiEtoS S1�stgrr>i; I��Nl1lJr059t
17
R�A
�% 3 1 e, i W,
Mi
Ari
ry
y� tl.�Y �tx-y ..k� ..,Jib, �iDS}ti� `��?F,. -..
dater Vioncna-ma
4.d
MINIMS M-Nw- 4Qr.,t*,r-
}� +s� ; +, syn '� < r ~ tl .nil ,-I[ .y � �:•, - 4
R)_� NFiLTI;P
prbAdes the
freedom to,f
Wtas. INFUR
pfavide a,rr
nbed confldc
cte�l�C1 goal
'A �r•1�ignect !n
Irm" rat(ve sc
Is 'a' complete stoirrnwa
indle the dry
fibers when
'age void ro
tem that INFILTRATOR , units have been specifled and Installed- In"
lous design h06dreds of systems, and are preferred by many englneets,
rds on most . .,,and, regulators because they provide'a technlcallysuperior
with stone and environmentally sound stormwater system ata slgnlfi-
ir trench or cant cost savings over traditional systems. ;
.detention
)er:can be
ernendous Relar(ve r est comparison (Cost per fig of storage)
.,�
wringforanlncraa soilsepartiontogro dwaterwhich �
maomlxos'pollutant treatment andfls perfectly lata the
errAronmental protection Iswes of ttje;�90s,vINFlLTiZATOR`"
chombxrs"also bedesignedlnmulN-tlAr�ortfigurations
to MaXIM1 a storage volume on sites IV ''film ' area and
inaiease d depths to groundwater, These.systems MUST be
Installed using H-20 units with layersperpendicular toeach
SPECIFICATIONS
ofhw as shown. n
HIGH CAPACITY
INFILTRATOR""I
SIZE
31x61/41x1'
3'z61/41x11i3'
WEIGHT
z h cRaaa 'M TIER
36 lbs,
STORAGE
,SWINJOLE
16,3 ft; (122 gal.)
N
A
1
,q
.
rr•,,,
r r._
r r sti r.
tlpi
SPECIFICATIONS
STANDARD
INFILTRATORTm
HIGH CAPACITY
INFILTRATOR""I
SIZE
31x61/41x1'
3'z61/41x11i3'
WEIGHT
251bs,
36 lbs,
STORAGE
10.3 19 (77 gal,)
16,3 ft; (122 gal.)
M IN
A is Q M
1;
f,
+p 1e"•G}LYI••a�'�irL'��~� �• i=::e � v:•��i i-rgA►r
�"��s�� Ss•>r�t1!�ss"•+t �,rd�:!si'7�:!�,jl,.•'w^,1•:.:�
') +�® O ���N rte, :w: ® ®� •.
r . ��i'Syy����,, 'r!ryr, •y "„'.moi y .` a+'�.'� i• r = �
'wti•�. .O.Yi•',::i•+�. S•..iw1L����+".••.l? fir. i%M.
If you have special problems or questlom call INFILTRATOR
SYS1> MS"' oryoUr local distrlbutof,
123 Elan Street Suite 12 Old Saybrook, CT 064.75 (103) 388.6639
{.
r..
6'w�at d` r` ,u. "`F` e t,�q'•` . ads �
�� , ° �,�,�,, a^,� � �.fi. �a t� ;.r~�
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SMYI'FMBE'R, 1992
j
1�
Project Description
and Discussion or issues
for the Proposed
Oak H ghiand
r
Planned Unit .Devellonment
ApPlic it: David &Muth Mat the
C, 0 Heritage Partner
426Broadway, Suite 305
Chico, CA 95928
C916i 893,8932
Contact: Tom Di6iovann
e
.
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rProject
Description
and Discussion of Issues
for the Proposed
Oak Highlands
PLANNED UNIT DEVELOPMENT
Introduction
This package presents a description of the proposed Oak Highlands planned unit
development (PUD) project along Cohasset Road, north of Chico, which proposes to
create 16 single- family homesites and open space on 81 acres. The PUD design is
intended to n►inimize or eliminate potential impacts to the natural environment and to
provide a fiscally responsible and well managed residential project. This project
application package is comprised of the following elements;
• Project Description and Discussion of Tssuesi An articulation of project goLls,,
SMS
project description, and general plan consistency are presented along with a
summary of prior regulatory actions on the property. A table detailing project
issues and planning responses is presented,
• Rezone Application; A completed standard application form.
Wa<steivaterTreatment Plan: This plan describes the collection, treatment, disposal,
and winter storage of wastewater generated by the prosect, It includes hydraulic
mass balance calculations for a reclaimed wastewater storage facility:
Sods. ury The u ose of the curve was to locate suitable soil for
-�,vi purpose survey wastewater
treatment and disposal for the 16 single familyhomes.
p
Botanic. I Survey. prepared in June, 1991 following a systematic botanical
examination. The survey covered forested areas a, �vcll as drainages and wetlands;
and identified special status species.
• Development Plan &Vets"ting Tentative Subdivision Man; Tlus map comprehensively
dcscribes the PUD plan and serves as the tentative snap for the project.
Summary of Prior Regulatory Actions
}
I'
The property has been the subject of previous entitlement actions and requests during the
'
lasozenterat years. In 1987, the property owner applied to the County to rezone the land
i�om "U"' (Unclassified) to "M 3" eo tttill-Recreational, 3-40,re minimum)This rezone
petition. was initially accompanied by a tentative subdivisiu:t map application for 27 lots;
the map was later withdrawn. Following environmental analysis; comments from
responsible agencies and departments, the Butte County Board of Supervisors voted in
"Fk-Y'
August, 1988 to rezone the property to ► 7oothill-Recreational, 5-acre minimum).
Subsequently, an application far a tentative subdivision Wrap for sixteen 5-acre lots was
submitted in 19M It was later amended to a first phasd Comprised of five 5-acre lots,
Comments from county departments and tither responsible agencies expressed concern
OAK 14IG14LA SDS PLANNED UNIT D8VPLOPMENT
�1�
over such issues as wildlife impacts (specifically Wrinter deer range habitat), appropriate
wastewater treatment, :noise from Cohasset Road, grading, soil erosion, and scenicuali .
q tY
in the course of processing the tentative subdivision map, the applicant proposed an
evaporation pond for wastewater disposal purposes which required a 'use permit. tit: Mardi,
1991 the Butte County planning Commission denied the use permit application, citing
incomplete information regarding this method of wastewater treatment.
Goals & Approach of the New Pian
Following a review of the project files regarding this parcel, heritage Partners undertook
to plan the land with a significant departure from previous efforts at property subdivision.
Several basic planning goals informed the new approach:
1) Use FUD planning to minimize impacts'. The clustering allowed by the PUD
method enables the avoidance and minimization of development impacts. For
example, the more compact character of the developed area minimizes impacts on
the winter deer range. Additionally, a PUD can establish permanent open space to
the benefit of residents and the general public,
2) tify design solutions to wastewater treatment; A functional and aesthetically
acceptable treatment and disposal system. is essential for any development to occur.
3) Provide oreaniz don and operating structure; A legally binding structure should
established
be to operate the commonly -owned facilities and systems of the
development, Also, to fully protect the public interest, a County Service Area
(CSA) will be proposed to provide oversight to insure that these facilities are
operated property.
Project'Description
Land Use
The Oak Highlands project is a 16 -unit Planned Unit Development (PUt)) on 81 acres
located 1 toile north of the Chico city* limits on Cohasset. Road, The proposed land use is
consistent with the Butte County General flan which designates the site as Agricultural -
Residential. Current zoning is FR -5 (Foothill Recreational 5 -acre minium) which'
would allow not more than 16 residential dwellings on lots of not less than 5 acres each..
The proposed project clusters the allowable number of dwellings under the FR -5 zone
onto 25% of the property, preserving nearly 61 acres as open space, With the exception
of the wastewater treatment/disposal/storage areas and a portion of access road, all other
open space areas are to remain in their natural state.
The be
open spaces are to owned in common for the benefit of the residents, Other than
as natural wildlife habitat and scenic open space; allowable uses shall be restricted to
wastewater treatment where indicated, seasonal wastewater storage, storm water
detention, and fire protection activities:
Adjacent land use consists of rural residential to the northwest and west (Keefer Ridge
Estates Subdivision), and seasonal grazing uses are to the south and east,.
i
4
'.ATC HIGHLANDS PLANNED UNIT DI:VELOPMi NT
�--__-
The project is to be developed in two phases as indicated on the development Plan map,
The flirstphase will have 9 lots; th p -p
e second phase 7
Due to pi`oximity to Chico Municipal Airport (approximately 2 miles to the southwest) an
avigation easement will be recorded alerting all ,parties to periodic overflight occurrences.
e proposed developed area lies within the conical surface of the Chico Municipal
.14;rportas established in the Airport Environs Platy:. Accordingly, due to thero,�cimi.t of
the conical surface to the ground elevations, several. lots will be subject to building height,
restrictions as shown on the development. plan. Contours will be verified prior to the
recordation of the map.
is it & Service
Doinestic Yt!'ater, —
Common well and di;,�.ribtrtign system to public water system
standards. A mutual water company will be formed to operate the
domestic water and emergency fire flow systems, subject to oversight,
by a county service area.
Fire Flow: System designed to meet county and state fire flow requirements of
500 gallons per minute for two hours (60,000 gal.). Well locutions and
hydrants schematically shown on, development plan map; actual
locations to be dictated. byf eld conditions: P
Storin Drainage: Runoff will remain in natural overland flows, except where channeled
at roadsides and diverted in open cobble-lined ditches past downslope
homesites. Small rock d,=- s will. be utilized for detention and. velocity
control, 'There will be sufficient detention to avoid an increase in peak
period'.ilow,
Elecircity Pacific ,G.as & Electric Co. via underground joint utility trench fron
existing overhead facilities adjacent to site,
Yetephone, Pacific Bell via underground joint utility trench from existing
l telephone ,Facilities,
- , V' fetvater'Treafinent
Collection., Standard
niteahot, with effluent screen to rean solids.Trapdt septic ctratlot,
site via STEL (Septic Tank Effluent
Pump) to address grade difference,
Treatmegt Primary-treated effluent from individual septic tanks treated to
secondary level by a central, subterranean recirculating.k,!ravel filter.
Treatment will ;include Onlorinatioin, Treated effluent pared to disposal
area.
Disposal: p Effluent distributed over an approximately 1:4 acre area by shallow
subsurface irrigation lines. Disposal by evapotranspiratioh via a
planted grass such as tall fescue:
Storage.,
Storage of treated effluent during negative evapotranspiration period
of December through February dry in approximately 1x5 acre pond sized to
_accommodate it I Myeat'storm event.
0A1{ inUHLANDS PLANNED UNI'fi 5h__V t,OPME_NT
W34
Operation:' System operation by licensed and bonded maintenance company
contracted by homeowners association, Maintenance program
approved fay Butte County Health Deparhnent and overseen by newly -
formed county service area.
Moms ownercytactn & otil
r,012eratin tructures
association is proposed for the purpose of owning and maintaining all
common areas and facilities, including the wastewater treatment
falities anomestic
water and emergency fire flow systems, and to administer other p ovis ons aasa et forth in
the governing documents. Other private, common facilities to be owned and maintained
by the homeowner association include onsite street, streetlights; common area: and
common area landscaping, signage and similar facilities,
General Flan Consistency
The Butte County General Plan.: designation for the area along
Chico is Agricultural -Residential. The primary land uses for this designation north
e ' of
agricultural uses and single fancily dwellings at rural densities. The proposed project is a
single family residential use at a astral density and is therefore consi
underlstent with the
ng land use..
The zoning district for the parcel is FR -S (Foothill Recreatcnal 5 -ac
z -e minimum) which
a conditionally consistent zone, The criteria for consistency are:
1) Compatibility'ith neighboring agrioulhiral activities,
The neighboring
agricultural vise is light seasonal grazing, acid is essentially compatible with the
compact PUD plan.
2) Evidence of adequate Water and sewage disposal cgpacit)t Adjacent rural
residential uses atsirnilar densities indicate the adequacy of water supply. table
and map of wells serving nearby residence,, :s provided below: The wastewater
disposal system is an integral feature of tfie PUD plan, The system is desmibod in
an attached section.
3) Availability of adequate r
the o p p p es t, ,d above and schemncy trace flow own n
q fie rotecttat acalities, A
is proposed as art of the.. lin and is d u
Development Plan and 'besting Tentative Map, schematically shown on
velo
4) Adequately tnaztztairted approved rood access ll)i,tlz ,stiff eietit capacity. The
protect will contain an access road off ColiasSet Road and will be built and
,maintained to county standards:
5) Reasonable accessibility to conintervial services andsehoalsY Commercial
services are located 2-3 miles further south an �re 1=m
ohasset Road; schools am
4* miles South on East Avenue,
OAK H1'"GH1LANDS PLANNED UNIT DBV;tiLOPMPINT
-4`
Development issues & Project Responses,
the following table serves to illustrate the differences between the current PUD
application and earlier attempts to subdivide the The
property. PUD approach clearly
enables
a planning response to environmental issues and potential impacts, and provides a
solution to wastewater treatment and common faOtil ty
operation and maria- ment.
issu%lynpncE 1~a"rlterrP.plect
PUi�Piatt
wastewater
Treatment
Incompletely addressed. 'Used pond for
disposal of wastewater.
System completely addressed and solved.
Collection, treatment, disposal
accomplished with common, accepted
practices. Reclaimed water storage
facility for winter months only,
wildlife
Impacts
Development. red entire 81 acres;
p
Concern
PUD clusters dwelling units, mini
miz8s
expressed by Dept., of Fish and
Game.
impacts on winter deer range; of total
'lands 75% remain in pt rmanent open
space.
Storm Drainage
& Erosion
Plot addressed by subdivislon proposal,
PUD clustering enables s effectiVe efficient
Control
ase of rock lined ditches and detention
area to accomplish goal of no increase is
Py flow.
Wetlands
Impacts
Subdivision covered entire site, including
wetland habitat', likely significant impacts.
PLED enables complete avoidance of
we0and areas on the site.
Scenic Quality
Subdivision covered site with one house
Sccni quality is preserved Most homes
per 5 acres. Most would be visible from
Cohasset Road.
would not be seen from Cohasset; others
would be screened by oak trees.
Noise from
Cohasset
Tots designed withoutsetback from
Cohasset Road.,y
PUD establishes 300' Setback from
CohassOt Road,
Site Planning
Previous approach used all lands and
PL1D approach uses :lust: ring yielding
required two access points along CohasseL
majority of open space; one access point;
l 1 I
1 2
3
16'15
14
J
8/
/
5
4
10
�
11 12 13
9
6
6 7
t3
D-
Operi Space
12
0AK HtMiLANDS PrrANN1;D UNIT b>;1?I .760'P M -EN T
w� q'
APPLICATION FOR REZONING
I)l;.J'"IVI'E COUNTY PLANNING COMMISSION
AljVt ICANT, Read and rollowinstructionsset rorth on last pageorth s form.
Appl=,,ant's Name David & Ruth Mant:hei
co Vera. Phone No! 9115) 893-8982
age ar nears
Applicant's Nia;lingAddress 426 Broadway, Ste, 305 Chico, CA 95928
Applicant,, interest;in property(Owner, Lessee, Other) Owner
ylr�
Owner's Name and Address David & Ruth Manthei, 9.304 Quesada 'way
- 2-6--------
Contact Person for Project orother than applicant) mem DiGiovalhni
tlssessor'sParcel i*Jtimber(s) . 047-23.59 & 60
Present Zoning fR___r__5
Requested Zcrntr?g Planned Unit Development ( Average 1 unit: per 5 acres)
Z
Location, dimelsions and site orarea(s) to be rezoned Lpca ted on the east side: of
,r
►.a'
�
Cohasse �, road , a ro��
proximately 1%4 mile north of Richardson Springs
F-+
Road, north of Chico, totaling 80.1 acres. (SEE N1�1P)
Street Addre;;s (inapplicable)
0.4
Direct06, ions nor travel to prolmrty (rural and mountainous areas only) —�-..
Appli^ant'sreavoo-,..r rezont'it , She
b-ar_oposed PUD densit is the same the
_a_s
„.:re, planned_ Unit Develo Ment wi11 allow`the
.,design . ui, ert rghmental121anningand adherence to
—the. goals yf the Butte Craunt; .General Plan `—
Proposed scheduling/Associated proJec,-2 (format oh orser%gcc district, etc>)' roposed formation
of .e coon tv Service arL: ,ct anci homeowners association,
Anticipated incremental devclopment (future development plans subsequent to tetone)r Developed in
twophases as shown on the "Development Plan and Vesting
Tentative Subdivision Map;"
Existing / proposed sewage disposal trtethodftsito- col.lecta on , . ;irea tmerit rsr tl spo;-a 7 .
Proximity orpower and phone Iines;Ac "acerr t to site .
Distaicetonaturai watercourscorstorm drain; firbutajto Reefer UloughProjet
designed not to ihcreate peakl.oV l.eaVing site.
'
Describe ntiip ted aandoff-sitedraina eimprovements PCrD MHP);Onsite: Use Of rock-
dined itc a�, '.g roadway o slow ve ocity,
eliminat
increase time of concentration. off-site; No mprovemeroits�n, and
Describe how on-site and downstream drainage channels will be affected (PUD, MHP):ShoU1d be; no
effect. Site has high runoff in natural state. (See Above.)
Onsite
Water source: well,
�
Proximity of water for, fire fighting purposes (hydrants, ponds, etc.') Eme rg7en c w
;
P s .
Y �..— g t e m
sbL11 beavai able onsite See development n1 n,
Will excavation or grading be necessary? Yes Cubic yards (estimate)? Less than 1 D b 0 —C-Y.
P.U.D. design minimizesL:Cadi`ng_
.
List and describe and other related permits and other public approvals required for
this ;project, including
those required by city, regional, State and .Federal agencies,,
Approval nf .wastewater treatment system by RWQCB. Approval of CSA
a
formation by Butte county' LAFCO
sze'
If residential, include the number of units, whether units are single or multi-story in height,
scheduleof
unit sizes, and type. of household size expected.
USixteen
new SF'D houses; cane or two stor
restrictions,; some �sttbject to hei ht
If commercial, indicate the type, whether :neighborhood, city or .regionally oriented- square fo
sales area, and loading facilities Not commercial . q otage of
If industrial, indicate type, estimated employment per shift, and loading facilities:
Not industriali
if institutional indicate the major function, estimated employment, per shift, estimated occupancy,
loading, facilities, and community benefits to be derived from the project.
Not institutional;
ENVIRUNMEI�ITAL fIvIPACT5 h MI'fIt;ATION hiBASIJRES
Identify potentially significant environmental impacts ass
features or ociated with the rezone. Wtial ro'ect de `
sped cottdtttons of ap p sign
�roval (mitigation, treasures) are proposed to atlei�iate potential
e
chVironmental.iirtpacts'?No otOlitialIV sighificant impacts foreseen.. P,U.D
design eliminates/Min imiZes pDtC''ntia impacts and is the environ
'
mentally s1.1perioi; al.ternat'Lve+ See ,Project Description and
�-
b scUssioh'' for further _coMMent
cL t j
Y &—Qyi9HT-6 . S rr NNG
Describe; the ,project site as it exists before thero' on
plants asci animals, soil stability,
aid
and any cultural, historical scenic aspects. DDescribeing a y exisrmation
ting structures site
d the use of thestruct+
anures.
Propertyis currently vacant -,of structures. Formerly used for
seasonal grazing. Tuscan anti
--------------------------Anita soil series. Blue oak
`
savannah and native grassland. Good scenic w
quality.. Please
;r
refer to Project Description: attached
Describe the surrounding prop!rties, including informationon plants and animals and any cultural
historical, or scenic aspects. Indicate the type Of land use(residential,ci
(one -family apartment houses, shops, department stores,etc ), and scale of development tensity of land use
setback, p (height, frontage,
rear Yard, e(c,).
Transitional foothill area. Single family residences
t.
at rural
densities to northwest and west, seasonal, grazing uses
to south
and east.
I hereby declare under penalty or perjury that. I have read and understand the instructions and that the
foregoing s tatements are true,
co.Zplete and correct to the best of my knowledge and belief,
Dal •
td, Z applicant's Signature,
'
d
Date: -, Property owner's signature
,
Project file IJ umber:...
�
General Plan Designation
Request Consistent'1
d
Request., RL -tone to
Locatah and size oCparcel�s)
_
tt�
U'
0
,
^vR
�r
Verify:
_A.P', Numbers 1ocation
Description
--Ow.nership
WLegal Description Area
of
Proof of Agency if needed
S Y i )
Maps of Arcai[7evelopmcnG
Present Zoning
Plan for PUD'$
I
--k!. Reproducible Master Map
of
Development Plan PUD's on
Date of Application received
Receipt No._i d /
Application Taken By
i
T
S
I
Pa
�1
�r
1
1
1
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for
SYNOPSIS OF OAK HIGHWIMS SEWAGE DISPOSAL PLAN
BACKGROUND'
1 The property is approximately 81..1 acres, situated along the east of Cohasset Road north
of the Chico airport and south. of the KeeferRoad intersection,
1 The development plan envisions 15 single family residences situated along the rise at the
northern end of the property. A private roast and public utility easement will 'loop through
'i
the lots.
3 The site does not have appropriate soils or substrate for standardseptic systems,.
SOILS SURVEY
4 A soils survey was conducted on the site in October, 1994 by Steve 1Vert, certified soils
scientist.
5 The entire parcel is underlain by a volcanic material mostly of volcanic ash and hard
boulders, Most of the north end has cobbles and boulders at the surface.
6 A 1.4 acre area of soil with 15-40 inches of well structured, red, silt loam to silty clay was
discovered and is shown on the development plan map, This area is best suited area .for
waste disposal.
COLLECTION
7 Each residence will have a standard individual,, water tight septic tank, equipped with an
effluent screen to retain - -US in the tank,
■i
8 A STEP (Septic Tank Effluent Pump) system will be utilized to address :the grade
differences of the site -
9 Several STEP systems are in use in other Butte County subdivisions, including The:
�!
Bluffs along the Skyway and the Villa Verona project near Oroville,
TREATMENT
10 The effluent from the septic tanks will be treated to a secondary level by a recirculating
gravel filter (RG1~)f The RG1~ will have dual pumps in the event of a failure.
11 The RGl~ is a form of secondary treatment wh ch results in effluent that has BOD and-
ndsuspended
suspendedsolids levels less than 10110.
12 The recirculating tank will be installed below ground, the filter will be about 3`± tall and
about30st Treatment will include chlorination.
,.
DISPOSAL
13 Treated effluent will be piped to the disposal area identified in the soil survey. Shallow,-
_ distribute subsurface irrigation lines wilt be used to distribute the effluent.
14 Disposal by evapotranspiration viz a surface grass such as tall fescue. Tall fescue is
used because of its documented ability to utilize large quantities of wetter over an extended
period of time, in a high rainfall. year, it will. be possible to keep about one-half of the
disposal area irrigated, with the remainder held in reserve,
I'
STORAGE
155 Storagef mtdent negative eVapotranspitaion period of December
throughinapproximately 5 arepend sized to accommodate a 1017 -year storm
OPERATIONS
16 System operation by licensed and bonded maintenance company contracted by
homeowners association, Maintenance program approved by Butte County Health
Department and overseen by newly -formed county service area.
17 Operation and maintenance is not difficult or expensive, Pumps and fittings are "off the
shelf, items; and critical components are made redundant,
18 Average monthly maintenance will not exceed a few hours, Responsibilities can be
contracted to a licensed and, bonded. aril.
SUMMARY
19 The proposed collection, treatment and disposal systems are proven and tested, and do
not involve new concepts; till of the system components have been in use in'Butte County for
many years.
i
NorthStar �I
i
ENGINEERING
Civil Engineers • Plann¢rs * Surveyors
r
OAR HIGBLANDS
CONCEPTUAL SEWAGE DISPOSAL PLAN
i
4
ADDENDUM fl
SUBJECT
Meeting with staff from the Butte County Department of
Environmental Health (Tom Reid.) and the Regional Nater Quality
Control Board (Ron Dykstra), June 29 1992, regarding the
Conceptual Sewage Disposal Plan. for Oak Highlands.
Ste f.f comments and concerns were addressed as follows:
T
The Regional Water g Quality Control Board- requires that a
Waste Discharge Permit be obtained. The Permit would identify
certain conditions and criteria that must be met in order to
construct and operate the proposed system.. This was
acknowledged as being an acceptable condition of project
approval.
- The reclaimed wastewater storage facility must be lined with
an impermeable layer or the reclaimed wastewater must be
disinfected. Similarly, the proposed drainfield 'must rely
totally on plant uptake, as opposed to percolation] or the
wastewater must be disinfected. The Conceptual Sewage
D:i.sposal Plan is hereby amended to include solid chlorine
disinfection of the wastewater: The chlorine contact chamber
will be installed after to the recirculating gravel filter and
prior to the leachfield and reclaimed wastewater storage
facility.
- The syFtem must be maintained by an approved legal entity.
A Homeowners Association will be created to oversee the day to
'
day functions of the system. In addition, a County Service
area will be formed which will will have the ultimate
authority and taxing capabilities to insure that the system is
properly maintained.
- A Hydraulic Mass Balance was prepared subsequent to this
meeting and was submitted to the Regional Water. Quality
'board
Control staff for review. This analysis included data
anddosign information related to wastewater, generation,.
rainfall,, grass consumption, and evaporation. Rainfall data
was acquired from Jib Goodridge, evaporation dpta was acquired,
from Clyde Muir at Department of Fater Resoui�es, and grass
consumption was acquired from the Soil Conservat.an Service:
TheHass Balance was prepared for a 100--year
M'
.rainfall year. Ron Dykstra: has verbally approved the
analysis,
20 DECLARATION DRIVE;
CHICO, CALIFORNIA 95926
w
OAIC HIGHLANDS PUD
HYDRAULIC MASS BALANCE CALCULATIONS
JOB X465.9 JULY
7, 1992
,`DATA: 16 SINGLE FAMILY RESIDENCES
200 GPD DAILY WASTEWATER FLOW PER RESIDENCE
100-YEAR RAINFALL
61r000 SF FOR SUBSURFACE IRRIGATION OF GRASS
1.50 ACRES SURFACE AREA OF RECLAIMED
WASTEWATER STORAGE
FACILITY (RWSF)
SS GRASS SS OUT RWSF SS OUT RWSF CUMULAT
:M011Tif INFLOW RAINFALL CONSUMPT TO RWSF EVAP TO
GRASS STORAGE STORAGE
(GAL) (INCHES) (INCHES) (GAL) (INCH) (CAI,) FT) CII
(CU FT
OCT' 99200 2. ,5 4.0 41024 3.4 0 421 421
iC9OV 96000 5.5 1.8 96000
-+?C`
1.8 0 33090 335.10
99200 8.0 0.9 99200 0.9 0 51867 85377
99200
9..992001.1
0 15 ' 0 56495 141873
,"y 89600 7.4 2,3
89600 8
,?^?00 6.3 3.4 89200 21..0 42634 184501
,g
96ix 3, 3`.4 3.6 86874 2.6 0 31503 216009
0 4862
.�.�.A:X ��92Ft�f; ,�, 6 6.9 220872
' 0 6.8' 101563 -41783 179089
JUN. 96000' 0
- 8.6' 0 8.2 200.962 -6721.4. 111875
cm 99200 0.1 9:0 0
8.5 240729 -78139 33736
A-UG 99200 0.2 .5 0 7.6 180272 -64666
0
SEP 96000 0.9 4.6 0 5.3 43165 -29511 0
TOTAL 1158000 45.62 54il 52,9
291XIMUM STORAGE VOLUME: 220,872 CUBIC FEET
AVERAGE RWSF DEPTH: 4.4 FEET IN(,LUDING ONE F00'Y' OF F�,EBOA
APPROXi. LEVEE VOLUME: 2117 CUBIC YARDS
Mates.- The rainfall shown represents a 100-year event for the total
year. The monthly rainfall amounts represent
a proration of the
100-year total based on average monthly and annual totals. The
ra ft-
fail information comes from Jiro Goodridge.
The evaporation data comes from
Clyde Muir at Department of Water
Resources in Red Bluff. It represents
evaporation data from the Gerber
data station 'that has 'been adjusted for the Chico
.location.
The, areas consumption data is for tall fescue grass and comes from
the ; ''X Extension S:revice
and the Soil Conservation. Serrvice
is
gP 4A fedtt ' 33 feet of which ins
q reclaimed
.aastewatereandS31.07 feetis rainwater.
i
0
r
S19�CRGROUl�D
T}! subject property is identified as Assessors Parcel No 47-23-59
601 approximately 81 acres. The property is located along the
east side of Cohass6t Road, north of the Chico airport and just
south of the Keefer Road intersection.
existing has no
improvements other than wire and Troche k rfpze�ces and is
currently open grazing land with scattered oak trees and rock
outcrops.
The preliminary plan for this site envisions 16 single
residences situated along a roce northern end family
Property. The residences will bie set on ind vdual lots surroof the
unded
by open space that is owned in common by all 16 lots. The untied
location of the building footprints is till somewhat tentative,
depending upon rock outcrops, trees, views etc,
and public uti it easement ' A private road
y nt will Idop through the lots
the necessary access and provide
ti infrastructurei
T
ypically aProject such as
this
would be developed using standard
not
available) and leachfields on 0 ch:individual lot Cit'
. Each system would be individually owned and
maintained by the corresponding lot owner
that are developed within Count just like most projects
p y 5 risdic on. The soil conditions
found on this site however are erierall ilot suitable to support
a standard 'septic system. Regulations currently enforced by the
Butte County Health Department re
Perire m'
colation rates that 'cannot be found on thisusit�:1 depths and.
site cannot be develloped with standard se tip Because the
necessary to investigate alternative methods for disposing t was
waste water that will be generated by the 16 d-gellingsof
SOILS SURVEvi-
In October of 1931, Steve Wert, Certified Soil Scientist
a serve of the soil. conditions found on the property. conducted
this survey and report is attached. py of
surface soil is most very It was determined that the
underlain by a flow of mostly
material mastllow and he entire parcel is
hard boulders. The
d ow is consolidated and Of1�olcanic ash and
locations. hard in some
nearly solid volcanic rock.
most,, three feet of soil lying over
rock was However, he found that even though the
Vito solid, it could still be dug with a backhoe to
depths: up to eight feet.
20 C€CLARA` ION' ORIVt
CHICO, CALIFORNIA 95926
gib 893'=,500
1 'f OAR HIGHLANDS
Page 2 of 6
The surface soil was classified into three categories, ranging :from
a "cabbly silty clay loam", Soil A, to a "dense massive clay", Soil
B, to a "clay loam,, .found between to boulders in the roc ri.dges
Soil C. Tests indicated that Soil A, has acceptable struc ureand.
PeXcolati.on characteristics and an area approximately 1.4 acres in
size was identified. Furthermore, the tests determined the
underlying volcanic rock to be the limiting factor to downward
,movement of water but that the rock is fractured enough to absorb
0mall amounts of moisture. In terms of sewage disposal, this means
the surface se l will readily absorb watoor and a
I flow it to move
sideways and downward, treating it as it passes through the soil.
The underlying volcanic rock will slowly absorb this :moisture and
allow it to continue itsdownward jourr:Ay.
The surface soil layer is too shallow to meet the requirements of
the Health Department and the underlying volcanic rock is not
permeable enough. g Also, during the wet winter months,
approximately November through May, the amount of 'rainfall that
typically falls in this area exceeds the absorption ability of the
volcanic rock, negating its viability for leachl.nes.
I RECOMMENDATIONS
The recommended solution to waste disposal actually consists of
three separate components; collection, treatment, and. dis mesal.
treatment. Each residence will have a septic
� st p n
'The first Com onent collection also includes the first ste i
tank. •The tank will a water
differencand e
will wL l be individual
n'he
standard fashion. n the
be that each tank will
be equipped with, an effluentscreen an the outfall so that no
Solids leave the tank
Fust like any septic system, the tank will act as the prima
treatment facility for tbe, system. solids are retained in the tank
i
and a certain amount of biological action occurs that begins to
break down the waste. Liquid effluent will drs:in from the
in
tanks to a common sewer pipe "n the street. Depending
on the final; lot layout, it may not be possible to gravity drain
all of the tanks to the sewermain. Grade differences utility
conflicts, and trefiching d, fficAllty will probably make it ecessary
for some or all of the tanks to pump to the sewer main. In thiq
case, a standard Septic 'Tank Effluent Puna
used. Because p (STEP system will be
pumps are dependant upon electricity, the septic
tank size will be increased to provide some downtime storage. ST$P'
systems are not new to Butte County, and some, including The Muffs,
Subdivision on the Sk�riay and the Villa Verona project near
Okoville have bee!,, it use fOt ;several years.
r
i
OAK HIGHLANDS
Page 3 of
The effluent from the tanks will drain down to an appropriate
location, as ha"s been identified aid tested by Steve Wert. At this
location the effluent will be ,.un through a Recirculating Gravel.
Filter (RGF), the next step in the treatment process. The RGF
consists of a recirculation tank and gravel filter. The raw
effluent from the septic tank mixes with treated effluent in the
.recirculation tank and is pumped to the top of the filter. In
anticipation of possible pump failure, dual pumps will add
redundancy to, the system. The diluted effluent then trickles down
thx.ouyh the
gravel in the filter where it is treat by the
biological organisms that live on the surface of the c .,/el. It
then flows by gravity back to the recirculation tank, d.c..,ating the
liquid :in the tank.This process is repeated .,iany times until the
i
resulting effluent s nearly clear and odorless. The RGF is a forme
of secondary treatment .and results in effluent that has BOD and
Suspended Solid levels less than 10/10. While the filter does not.
remove all contaminants such as nitrates and viruses it does
reduce them substantially. The effluent is pure enough that it is
readily absorbed into the soil, M-1ch more so than unfiltered.
e£fln6nt, The absorption: capabilities of the soil can be tested
W.th domestic water knowing that, the treated 'effluent from the
til.ter will be absorbed in a similar manner.
The recirculation tank is installed below therou.
g nd so it is not
visbla, but the 'filter is about three or four feet tall and about
thirty feet square. It will be necessary to locate the filter
is fenced,or although tis not necessity rocks. Often the filter
tactfullyh some
g as evidenced by the
filter that serves the Post Office in Stinson Beach,, California.:
Also, the Town of Paradise has several examples of this type of
filter including the Paradise High School where the filter sets
within 150 feet of the main classroom buildings, and the Marjama
.Apartments where the filter is about 50 feet from several of the
apartment units.
F; Jm the filter, the treated offluent will be ,piped to the disposal
' area that was identified and tested by Steve Wert, Shallow,
subsurface irrigation lines will be used to distribute the ,effluent.
over a large area where it will be used to provide water for a
surface grass such as tall. fescue. In a high rainfall
g year it will
be possible to keep about one half of the disposal area green with
the remainder of the area held in reserve. The existing oak trees
could suffer from the increased amount of water, iso the irrigation
system will be sitea away from as many trees as possible. If
desired, it ifs possible to plant different tYpes of trees that,
would actually thrive in this type of environment, A residential
development currently being constructed near Marte; wi11 irrigate
Of landscaping shrubs and tree:3 with similar quality effluent,
OAK HIGHLANDS
Page 4 of
l ,
Eased on the documented evapo -transpiration data for this area and
the consumptive ability of the tall fescue grass it will be
possible to lengthen the season when soil disposal is viable. Even
though it is still raining until the middle of April, the moisture
needs of the grass exceed what can be provided by rainfall. Tall
fescue grass is used in the disposal area because of its documented
w
ability to utilize large quantities of water over a fairly long
period of time. This is a very dry area in the late summer and i
uainy l and green meadow would be a valuable habitat. By
( g only sface irrigation it is possible to avoid the strict
!, requirements for surface disposal.
F
During the met winter months when the rainfall exce .:a, the moisture
i requirements of the grass, it will be necessai co store the.
1
treated effluent from the, recirculating gravel filter. Based on
approximately the
that occurred in 1985/1986 this is
pproximately e period of time from the: end of November to the
end of February.The rainfall
documented. This chose. be ern and quantity for that
pattern
particular year was chosen because it was above average and well
quantity rain is only expected to fall once
every 75 years, and is very conservative for design purposes.
The type of storage facility is really a function of 'economics.
The best solution for this project is a containment structure that
is open on top, such as a small lined pond. The cluster type of'`
development which is proposed for this project leaves a lai:ge
amount of open space where the retainment facility can be
appodorless,
sited. While the treated effluent is clear and
it is not suitable for human contact and therefore should
M be ,fenced. The storage facility will be dry most of the summer and
fall when mosquitos can be a nuisance- but could be treated with
mosquito fish if necessary. Algae growth will probably occur
during warm days but could be controlled by installing an aeration
de -fide, but only if this is perceived as a problem: Because the
Algae growth would plug the pipes in the drainfield the retained
effluent should not be irrigated. Instead, it should just be
allowed to evaporate.
OPERATIONS AND MAINTENANCE:
Typically, the maintenance of an individual septic system is the
sole responsibility of the homeowner, but in this case, maintenance
of the entire system should be a function of a service district,
either a County Service Area or Homeowners sAssoc'ation. Systems
such as this have been in existence for many years but in the l
run are only as good as the waintenance effort that assures
efficient, quality operation.
i
While the imr1ortance of high quality operation and maintenance
cannot be ove, emphasized, it is not expensive or difficult to
achieve. The equipment used in this type of system is nearly
failproof. . tiMN11, efficient pumps are used that are constructed of
totally non-cc,xrosive parts such as plastic and stainless steel.
All pumps and fittings are standard "off the shelf" items that can
be replaced with minimum effort. Critical components, such as the
recirculation pumps, are doubled
up in the event of a failure
p p..
Quick disconnect fittings allow easy replacement. All pumps are
equipped with run meters and alarms _that can be wired to an
emergency phone. Inspection points are installed throughout the
system so efficiency can be quickly analyzed and samples pulled to
verify quality.
Li
monthly ,Averag e a'ntenancce will probably not exceed a few hours.
�
Septic tanks should be pumped every few years, just like any
tains rd searec ►utsof sight is surprising how many standard septic
P y It
,k of mind ate completely ignored
by the home owncar. Lack of tank maintenance is probably the single
larg�)st cause of sceptic system failure, yet it is still not
required by authorities. The recirculating gr4%vel filter must be
checked occa8iolially, but, according to Dave Hurd, the Maintenance
Supervisor for the Paradise School District, the time involved is
"almost negligible". The remaining components of the system
require almost tuo monitoring or maiiitenance
All of the maL-itenance and operations responsibilities can be
contracted out t. a licensed and bonded firm. In the tease of a
County Service krea, this would avoid 'having the County hire or
train new gersowtel: Also, this would provide a single entity that
would respond to any problems that might arise.
I
0
0
SIIMtghRY.
The sewage coll�,Wtion, treatment, and +disposal system that is
proposed does not identical
any really hew
ppcon p Ili fact, this
y y ce ts:
P
system is nearly identical to the one approved five years ago by
the County for uwa at Lime Saddle Estates Subdivision, near bake
Oroville. The approved Lime Saddle system consists of STEP`
oollbction, redi.'rculating gravel filter, for treatment, spray
it -ti a-4on of than treated effluent on a pasture, and winter
storage
The various caznpyo,,ants , proposed for the Oak highlands project have
been used befo e a ,.d in many locales are no longer considered to be
irmiovative or alternative. All were chosen to suit the specific
needs and condit o,is of this particular project.
OAK HIGHLANDS
{
Pase 6 of 6
Septic tanks were chosen as the first phase of collection and
treatment for a variety of reasons. Except for standard gravity
j
sewer collection systems, septic tanks are the most widely used
method for collecting residential waste water and initiating the
treatment process. When properly designed and constructed the
septic tank has a lifetime equal to the dwelling being
served. The
quality and quantity of effluent from a residential septic tank is
well documented and 1-ery consistent. This consistency is
advantageous to the des igner of the downstream collection,
treatment, and disposal system and makes for very predictable
results.
STEP collection systems are rapidly becoming the method of choice,
especially in difficult terrain. This type of system has been time
tested and is consistently the most etlonomical alternative.
g just the effluent, without the :3olids,
allows the use of
smaller diameter sewer mains that can be installed in shallower
y
trenches. The profile of the sewer main can vary with the terrain
and be easily adjusted to avoid conflictswith other utilities.
Recirculating gravel filters are just a variation of a process that
has been in use in the United States for over one hundred years.
Recirculation filters are easier, to
construct and maintain than.
"package treatment plants" which require more energy use and
special, -certified plant operators', yet they still provide a :high
quality effluent.
Irrigation disposal of the treated effluent is now considered to be
"environmentally sensitive". It allows the treated waste water to
be returned to the soil where it is eventually used again. Growing
plants with the effluent is another part of improving the
:nvironment instead of continually allowing it to be degraded.
NORTHSTAR ENGINEERING
Mark Adams
RCE 34257 E-
xp 9-30-95
1
1
STATEMENT OF QUALIFICATIONS
MARK S ADAMS - Registered Civil Engineer RCE34257
VdrthStar Engineering
20 Declaration Drive
Chico, CA 95926
(916) 893-1600
EDUCATION:
.Bachelor of Science, Civil Engineering, 1979,
California State University, Chico
'EXPERIENCE:
NorthStarEngineering, ngr 19$3 to present;
'Project manager with background in development t-:ngineering
surveying, and small wastewater .'desisubdivision and development design.,� Extensive expexi�_.nce with.
subdivision
� storm drain analysis, and
al.ternaetive wastewater collection and disposal systems.
McCain Associates, 1977 to 1983;
Design. engineer responsible for public works. design, contputati.ons,
subdivision and development plans, surveying, per- testing,
comwaction testing,, preliminary soils Investigations and utilities
der t., z ,
RELEVANT PROZTrTS z
PROJECT- 5hadowbrrok Villa Apartments, Phases I II
LOCATIO;q- Paradise, CA
CLIENT: aim Harding
Phase I (1988) consisted or 32 ,apartment units with a recirculating
consisted ,of 16 apa-t-tment units with a Pumpstation and
It 19$7
d
ea grl tan filter and standard leachfield Phase
g pea gravel falter and standard 1Lachfield Project
it %tided consiructi0ft inspection for both phases Thin was
r c�ort�edl.y the first system of its kind in California.
PROJECT: Lot 23 Acc.'.-.n Ridge Estates
LOCATION: Peradise, GA
CLIENT: P �� � 1 H ixby (19 8 9 )
Iritermi,ttent sand filter fo,; a new single family residence due to
shallow soil profile. System was designed. in conjunction with
Steve
Wert and performed construction inspection.
PROJECT- Maxwell Apartments
P LOCATION: Paradise, CA
CLIENT; J:E. McGuigan Trust (1991)
design
failingsepticp.. Y y _ Pimproper' q nal
de ase laced system
due
ere irculating pea gravel filter
standard .leach r soils and or,: Viand
f�.elde Designed the system and perfo'niod
construction inspection-.
Page 1 of 2
t R . PROJECT araciise' High School
ZbdATION: Paradise,• CA
CLIENT: Paradise Unified School District (1988)
Thisect ro
P j , designed and constructed with the cooperatisre efforts
Of Nolte Associates and Steve Wert, consists of a recirculating pea
gravel filter, rehabilitated drainfield and other features.
Performed,the'construction inspection.
PROJECT: Spinning Wheel Restaurant
LOCATION: Paradise, CA
CLIENT: Bob Lang (1991)
Designed a grease trap, recirculating pea
station, and drainfield for gravel filter, gum
his family style restaurant that was
faced with closing due to a :ailed septic system.
PROJCT: Johnson Residence
LOCATION: Paradise, CA
CLIENT: Harold Johnson (1989)-
i Designed an intermittent sand filter and pressure dosed drainfiel,d
for this single family residence in an area of high ground water.
PROJECT: Jawes Residence
LOCATION: Paradise, CA
CLIENT: Charles James Construction,(1989)
Designed an intermittent sand filter and drainfield for this single
family residence located on a very small lot and restricted by
setbacks.
PROJECT: Hamlin Residence
LOCATION: Stinson Beach,CA
CLIENT:
Althea Hamlin(1989)
In conjunction with Steve Wert, designed a pump station and.
intermittent sand filter for this single family residence in an
area of high: ground water.
PROJECT: Parkside Restaurant
LOCATION: Stinson Beach, CA
CLIENTm Bill Scott (1.991)
This project involved the design of a
pea gravel filter, pump station, and leach bed ease trap,
r�acrestattrang
taurant
with attached snack ba,r, and apartment, The sate was very
restrictive with high grt,)und water, setbacks, and limited area.
PROJECT: The PlanL.ation Mobile Vome Park
LOCATION: Paradise, CA
CLIENT: Garb Guardino (1991)
A,100 unit phased mobile home development ldcated in an area of
high ground water and som- .
poor soils. In conjunction with Steve
Wert, designed two pump stations,, a dosing station and an
alternating pressure dosed drainfield. A recirculatin ,ea
filter W411 be implemented during a later base. g p gravel
been ,approved by the RWQCB and is going topconstruch anrojectlhas
Page 2 of
Y
WERT & ASSOCIATES
9
Steve `pert, C,P,S.S. 480 Garden galley RoadRoseburg, Oregon 97470
' Cftiulting Sail Scientist
1503)673-4148
Mark Adams
Northstar Engineering
20 Declaration Drive
i Chico, CA 95926
February "1 u , 1992
Dear Mark;
During October 10 and 11, 1991, a survey of soil conditionson the Manthei Parcel AP'
# 47.23-60 & 59; al acres) was conducted, Because the soils contain gravel and
br�uiders, a backhoe Vias used to examine the soil to a depth of four feet or to bedrock,
whichever came first. 1;;4 ck,
purpose of the survey was to locate suitable soil for waste
disposal from 16 sire jie 41mily homes. On a previous inspection of the parcel", 'I
�! from examin F�d
concludwaw, therefore, concentrated c.id test pits that the north side has the best soils. Testing
ated iii that area,
' The entire parcei, which is 106,0ed on Cohasset Road north of the airport, ._ Is
underlain
.consolidated and ash y an hard boulders.. The flow is
y a flow of volcanic material mostly of volcanic ash and
b
and in some locations. The tock is usually soft enough to dig to a
depth ol° four feet; in some places, the rock can be dug to depths of 6-8 feet.
Most of the north end has cobbles and boulders at the surface. Slopes are less than 10%.
The soils can be Placed p into three series. Soil A is 0-36" deep with a cobbly silty clay
loan texture. It Is well drained and well structured. Sol! 8 has lo -15" of well
structured silt loam over 10 inches of dense, massive clay, Soil B
permeability las a very slow
p y and remains saturated for extended periods of time, Soil C is a clay loam
about 30 inches deep containing boulders, Soil C trlakes up the "rocky ridges, Appendix
p g ph A
rend of the18 d
of the soil profiles. Figure f shows the typical profiles found on the Korth
e parcel.
t't&n the
y acre Area of Sol! with 184, Inches of well structured, red,
silQlo,tm t si�ity clay was, discovered, This area was fiaggeu and is shown on Maki 1, This
area IJ At very little of Soil B. which Is the one with a dense clay pan,
ird
�=cJ
i,
�
Testing was begun on October 11, 1991, to determine the rate water is absorbed by the
o
and the underlying bedrock. Two trenches Were s dug -one into the bedrock and the
other just to the bedrock. The trenches were 24" wide by about s feet tong. Each trench
Was described and cleaned. A wooden box was installed and gravel placed around the box.
as is sh'ovin in Figure 2.
■
WATER METER
WA MR
SUPPLY
•;�yi•',fir �
C
WASHED DRAIN
ONSMANT CK
WA MR LEl/Er; °' o
. .; FLOAT
ti
WOOD BOX
PARENT MATER%AL
FIGURA~ 2,
A 1600 gallon water tank was connected to a water meter for each trench. h The water
meters were connected to a float to maintain a consistent level in the trench. Test Ptt Al
Was designed to test the abaorptioh rate of the bedrock: Water iev
els were maintained at
6" depth. Test Pit A2 tested the absorption rate of the soil with Water levels at 12"• The
■
trenches were separated to prevent one trench from influencing the others Figures 3 and
4 show the layout of the trenches and their relationship to the bedrock.
Table 1 lists the dates of the testing and amount of water used. A total of 3475 gallons of
� a
water were added to the trenches (combined); Normally, water meter readings are used
to. record the absorption rate. On
this project, however, the rate water was absorbed
was slower than tiro meters could measure. To determine the amount of water used by
each trench, the following procedure was used. At that end of seven days of testing, water
was shut off to trench Al (bedrock). The rate of fall for the first 0.5 inch of water was
recorded. By knowing the dimensions of the trench, the amount of water entering the
bedrock during this 0;5 Inch drop
was calculated. This number was expressed In gallons
per hour and multiplied by the duration of the test to produce the number of gallons
going to Al, Gallons going to trench Al were subtracted from the total to show numberofgallons
i.
going to trench A2 Results -:how 525 ,gallons were absorbed b Trench
y T ench A 1 and.
�r
2950 gallons by Trench A2. This clearly shows the bedrock to be the limiting layer to
downward moveme it of water
�!
Calculations,
Flow into Hole Al (bedrock) when head was 5.5 inches,
Drop a 0.50" In 30 minutes:
Gallons,
Depth of Water" 0.5 inches r 0.042 feet
Size of hole = 11.75 sgft;
Volume inside wood box; l.3" x 'V x 0.042 - 0.055 cuft
Volume of gravel In 0.5" layer L 11.75 X 0,042 x .60 A 0.30 -.055
0.245 cult
i
Volume of water in 0,5" layer a Total Volume'- Volume In gravel
Volume of water a (11.75 X 0.042) - 0.245 - 0.248 cult.
Gallons = 0,248 X 7.48 , 1.86 gal.
Flow Rate 1,86 gallons/30 minutes
172,gallohs/hour
Total water going Into At = 8,72 X 141 hr a $29 gal..
2i Flow Into foie A2 m Total flow - flow Into Al
8476- 525 2950
= gat.
i
TRENCH A-1 BEDROCK TEST
BEDROCK TEST
rs t
WATER ME 5 yr. 3/3 'SILT LOAM, MOD. PERMEABILITY ,
26 r
•
irir�•• J. r .� t S r! J .t t
_. t t �r syr.• t J, S J. S J t! t t
! S t t' s•'L• ! t . t � S t S! t J! T it
•1. e1
30„ ...
I
64"
5 yr. 3/3 SILT CLAY LOAM, MOD. PERMEABILITY
WHITE, VESICULAR TUFFS, WITH COMMON CRACKS
STAINED WITH IRON AND RED CLAY.
FIGURE 3
' !� � � ® o� � � � s� ® ® ram a� �i r� � ■ems
TRENCH A-2 SOIL TEST
SOIL TEST
WATER METER
yr. 3/3 SILT LOAM; MOD.. 'PERMEABILITY
26
' tf t t t i t r iif
0k*
tt t t ?1•f•• f f +...t tf! tt t �! t t i f 5
d Stt t r t- tityl.i �. t ti t tt tt tt f tt tt f t t t t S t S tl 5 L S',
t i l t S1S�•S1 t t_ 1 S. S i t .ttt St - t! t
S t ! S t t t 1- f ft L .1St •t
t S 1. ! t t= t ti�ti�`•� t t ! t t t tt . s t SL �t t t f 1 it t tt' •
t 'S , ft. irtirti< _, _. S itt. St S ti t 21 tit r . t S t t t s. t s. S t t,•. _..
t t it ttf tt Stt tirtirti•. ls. SS t t11 ttS 5 t. ftittt tf tt�S s S �
/'} t t . tt t Sr•f•• ... 57t. S f •t Sri 1F S t � fl.; 1 5 i%•t
JOi� ! ! t t t, r• +' ,.t: lt.e. t. .t Yf. fi .r.t. 1t. tt.•t•
64"
S yr. 3/3 SILT CLAY LOAM, MOD, PERMEABILITY
WHITE, VESICULAR TUF' t�, WITH COMMON CRACKS
STAINED WITH ]RON AMt" t�ED CLAY.
FIGURE 4
Table 1. Number
ofallons used
9
during to
g sting. and ;rate water dropped in
pits at end .o1 test.
WATER PP Y
From: 1:00 PM1 0.1 1 - 91 to
4:00 PM
10-12-91 590 GALS.
4:00 PM 10-12-91 to
10:15 AM
10-14-91 1211 GALS:,
1015 AM 10-14-91 to
10:00 AM
10-15-91 526 GALS:_
10.00 AM lo -is -91 to
10:00 ,AM
10-16-91 580 GALS.
10:00 AM 10-16-91 to
9:1>5 AM
10-17-9i 569 GALS,
TOTAL FLOW OF BOTH TRENCHES =
3475 GALS,
TOTAL LAP SETIME
143 HRS,
SUBTRACT 2 HOURS FOR FILL TIME
- 21im
TOTAL
141 HRS.
RATE OF DROP WHEN WA1 ,�R
WAS SHUT OFF,4T EN OF TaaT
j�ME
JHOLE I A
HC)..=A
9:15
-11,5"
9;46
-13.75 A
10.15.. i
15.75"'
10:45
-19.25"
-17,26"
11:15
-19.75"
-18.25"
11:45
-20:25"
19.2.5"
I
1:15
-21.00"
-21;50«
,M
y
Figure
5'shows the acceptance rate of the bedrock when there
t,ench to be 0.19 gal/sgft/hr.
The soil, by comparison, accepted
Was 5,F.�" of water In the
water at 0;96
aVsgft/hr when there was 12" of head.
o
I
REED
CONSTRUCTION
j
TOTAL WATER
U CO
APPLIED R 3475
GALLONS
' 1
d.
'
RED SILTY CLAY
20'�--
LOAM ,15% GRAVELS —#,
23'-t
1
BEDROCK
TEST PIT I A BEDROCK TEST TEST PIT 2A SOJL TEST
M'
BFpROGK TES
TOTALTIMEOFTEST
141 HOURS
141 HOURS
HOURS SUBTRACTED)
SIZE OF TRENCH
014" X 26"
54" X 28"
DEPTH OF WATER
6"
i pr
'
SIDEWALL AND END RHEA
7;54
13.7
BOTTOM AREA
� 11,751
0.50
TOTALABSORPTION.AREA
19,29 SQ PT
24,2 80 FT
FLOW RATE
3J2 GAUHR'
20,9 GAUHR
1
ACCEPTANCE RATE
0,19 GAV8Q FT/HR
0,86 GAL/SQ FT,tHR
(USING TOTAL ABSORPTION AREA)`
FIGURE 5
RESULTS OP"TESTING
r
r
I%I
To gain a better insYght as to how much water is absorbed when 'there is no head, flow
rates were caloulated during the last recorded dropfor trench Al. During that time,
water levels dropped pp 0.75 inches In 1.5 hours. This equates to an absorption rate of
0,15 gal/hr!sgh. This Is lover than the 0.19 gm/hr/sgft Naported ir, Figure S. The
reason is to
,:)ue head. The 0.19 number was determined with 6 inches of head. The 0.15
was determined with 0.75" of head.
Once the testing was completed, trenches were dug to determine the direction water
moved when leaving trench A2. figure 6 shows the area wetted was 900 sgft. It moved
in all directions. This Indicates that the bedrock absorbs :;rrall amounts of moisture and
that the 8611 has good lateral permeability.
5utr�mary of Solt Testing
The area shown on Map 1 Is the best suited area for waste disposal: There is about 24
inches of well structured, red silt loam and silty clay loam over bedrock, This 'bedrock
controls the downward flow of water. It does have fractures. It accepts 0.15 galtsgft/hr
or 3.7 gaVsgft(day, These rates are adequate for using the area to grow grass. Perhaps
a small play area or "park" couli .be developed p d in the area receiving the waste water,
T he soils are not suitable for disposing of effluent during periods of heavy rains.
� �trirn�„"dPd��ste Di�posai S rt rri
I suggest placing a water tight septic tank at each home.. If possible, position the tanks so
e small diameter gravity sewer line can collect the `fluent, and cxirryIt to a _
recirculating gravel filter: During the
water months, the effluent can be placed in a
small retention area. When spring arrives, the efftut;nt from the sandfilter is routed
directly 'to the park where it Is used for subsurface trrl ation.
g At this point, the
retention area will begin to evaporate and be dry by mid summer. The retention water
should not be ltdgaWd in the park due to algae problems, clogging the irrigation system,
The retention area should be located away; Yront the homes and shouldbe fenced, it will be
dry most of the summer, The green area is best irdgatF,d using a subsurface system,
This avoids meeting Tiile 22 req�uiromentsr The subirrigation lines should be 8" oder
the surface. A design of the fireld will"bo done ence we have conceptual approval.
y
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{f ,� {qA / { > SF4 G' y >j �r'y q-., t� /..t N J'.f C �' v, `�.±. �'•3» v\:Y' c'.5,..>i�'�' {• -
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•t5 {S�{ {1' v r _' � >,.; �•r s'- x" _ Jy¢ •, 1�1i\wryy�L ;snk 3 { x{� Y'
ray 'ty. /L s:S hr t"f" :� U ✓ s}.fir yyYr,} 7'1,'3"5��� YPss`4,wF sk\ _����i�rjs 'Sr:h .
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15,5"
i
ALL TRENCHES APE 42," DEEP
HARDPAN AT 18--30"-
THE WATER LEVEL IS AT OR NEAR (8` OR LESS) THE SURFACE
WITHM I O" OF THE TEST 6AX
THE WATER LEVEL AT THE �-ITWARD ENDS of THE TRENCHES IS HARD TO DETERMINE AS IT IS
SPORADIC, FOLLOWING FRACTURES IN POCKETS OF SOIL
FIGURE 6
I
`,
���1:EP.�d tosublrrioata.
Weathar data from Station #12 Durham," 'California, shows a 75 year storm (which was
65.85 rain year) produces 29 inches of rainfall Table 2 shows rainfall, evaparatfon
from a pond surface, and evapotranspiration.
TAD LE 2 WEATHER DATA FOR 75 YEAR STORM
STATION #12 - DURHAM, CA
i
DATE EVAPO- EVAPORATICN RAINFALL NET Consumtive
TF ANSPIRTION FROM POND' Use
-S IRFACE
Nov. '85 1.8 2,0 4.87 +3:07 1.70 in.
S
Dec. 0.9 1.0 1.85 +0. '
95 1.00 in.
Jan. '86. 1.5 1:6 5.7 +4.2 1.20 in.
2� t 4i8 +2:0 .80 in:
Mar. 3.4 - 3.7 4.3 +0.9 3.10 in.
Apr. 3.61 4.0 1.8 -1 .8 4.30 in.
May 6.9 7.5 1.3 -5,0 5.80 in.
June 8..6 9.5 0.2 -8.4 7.10 in.
July 9.0 9+9 0.0 -0.0 7,77 in.
Aug 7.5 - 8.4 0.2 -7,2 ._ 6.60
Sept. 4.6 5..1 1.1 -3.5 5.20 in.
Oct. 4.,Q -4.4 212 . 3,50 In,
Total 54.1 59.6 29.0 .,,21:38 49.o In.
Consumptive use of tall fescue is also listed in Table P. This shows 49.0 inches of
moisture will be needed to keep the grass green. In March, the moisture needs of the
grass exceed what can be supplied by rain. Assuming irrigation will begin In March and
continue through October, there will be 768,000 gallons of irrigation water avallable
from reclaimed wastewater: From March to October, the plant needs 43.3 Inches ,and In
a wet year, like 1985, rain!all supplies only 09 incites. The grass will need 42.4
inches. This amount of water will' keep 29,000 sgft of lawn green.
A total of 38400 gallons must be retained from November to February, based on a
75 year storm.
7
F..
APPENDIX A
.SOIL PROF! LE DESCRIPTIONS
j
All soils describedare on slopes of 0-5%
i
Test Pit #1
Soil A
0-18"
SYR 3/3; Cobbly, silty clay loam, mod., med,,
granular structure; many small and med., pores;
18"+
20% cobbles and gravels.
White, vesicular, tuffs with common, thin, cracks stained
with iron and clay. The number of cracks diminish with
depth.
Test Pit #2
Soil F3
0-7"
SYR 3/3; cobbly, silty clay loam, mod., med.;
granular structure; marty small and med., pores;
20% cobbles and gravels.
7-18"
SYR 3/2 clay, strong, med., prismatic structure;
common, distinct, low chroma mottles, many slickensides,
vary slow permeability.
18"
Hard welded, tuffs; few cracks.
Test Pit #3
Soil D
_
0-14"
SYR3/3; cobbiy silt loam; mod., med.;' granular
structure; common meds; pores, 15% cobbles and gravels.
14-26"
5YR3/4; cobbly silty clay loam; ,^tod:, fine, subahgular'
blocky structure; common' med., ,pores; 2516/o cobbles and
gravels.
26-40"
5YR3/41, silty clay; strong, med., subangular blocky
structure, slow permeability.
'
4004-
White, veslcular; tuffs with common, thin, cracks
strained with iron and clay. The number of cracks
din)inl h with depth:
Test Pit`. t'#4
bike Test Pit #3:
Test P.04 #6
like Test
Pit #3 except 28" to bedrock,
r,
1
Test Pit #6
Like 'Test Pit #2 except. 29" to bedrock.
Test Pit #7
Like Test Pit #1 o " except 16
p t bedrock..
Test Pit#8
Like Test Pit 43.
Test Pit #9
Like Test Pit #2 except 116" to bedrock.
Test Pit #10
Soil Gr
0.•33" 5YR3/3; silty clay loam canta ning boulders.
'
33"4- Hard, welded, tuffs.
Test Pit. #11
like Test Pit #2:
Test Pit #12
Like 'Test Pit #2 except 20" to dense clay.
Test hit #13
Like Test Pit #3 except 24" to bedrock.
Test Pit #14
Like Test Pit #3 except 22" to ,bedrock;
Test Pit 015
Like Test Pit #2 except 22" to dense clay.
p n ay.
Tes Pit #16
Like Test Pit #2 except 244 to dense clay.
'rest Pit *17 '
Like Test Pit #3 except Ni' to bedrock.
Test Pit 418
Like Test Pit #3 except 36" to bedrock:
Test Pit #19
Like Test Pit #3 except 24" to bedrock.
Test
Pit .#20
Like Test Pit #3 except 21' to bedrock
Tost Pit #21
Like Test Pit #10
Test Pit 02
Like Test Fut #1
Test Pit #23
Like Test Pit 93
�a
q,
STATEmr=► T OF (QUALL°.ROATPON
jSTEVE
WERT - Certified Professional Soil Scientist: #371
9480 Garden Valley Road
Roseburg, OR 97470
(503) 673-4148
`
EDUCATION: Rachel or of Science,: Agronomy- Ohio State University,
Columbus, Ohio 1966.
Masters .of Sciencs; Soil Science; Oregon State University,
Corvallis, OR 1969,
RECENT PROJECTS: "On -She. Waste Disposal for Paradise High, School",
Paradise; CA., 1987. Recirculating Fine Gravel filter and
soil absorption field were used.
`
On -Site Waste Disposal Plan for Paradise Elementary,
-Paradise, CA 1988; Low pressure distribution
system for new disposal field,
..
Survey of Septio System 'for th
y e Community of Los _
Ranchitosi San Rafael, CA., 1990:
Conducted a survey of soil ;and on-s1te waste disposal
systems in a well established community of 1A homes in
Marin County., Provide alternatives for onsite
solutions as well as a community system. Worked with
local and state health agencies.
"Wastewater Treatment and Re -use of Water for Fairway
Estates', Chico, CA,, 1990. Study of Waste disposal
;or 200 homes and reuse treated effluent for
irrigating g�)lf• greens and fairvsay8.. Recirculating gravel
f
filter was piroposed,
Soli Survey
and Waste Disposal Plan for The Plantation;
Paradise, CA. -,100 unit mobile home park; Reclrcu1atln6
gravel filter and tibsorption field. 1991
�ioil Survey and Waste Disposal System for Lime Saddle
Mobile Horne Estate = Paradise, CA. - 134 unit mobile
home park; large ,absorption field, 1990,
Soil So vey and On -Site Waste Disposal for Oak Creek
Estates, Paradise, CA. - 177 homer subdivision, 1991.
Preliminary Soli Study for Moe West's Proposed'
S' - r ne subdivision,
subdivision, Paradise, CA, 1.i0 hog
■
1989
Sand Filter System for Bill Haxby - Single family home :on
Acorn Drive, Paradise, CA., intermittenll sand filter and
alzWrption fiel6,1990.
Soil Survey for Keefer Creek Estate Subdivision, Chico,
CA., 1990.
Stili Study of Langenwerf Ranch Prhpo;ted Subdivision,
Chico, CA, 1991.
Solt Testing and Waste Disposal Study for Expansion of
Albertson Super lAa,,ket in Paradise, CA absorption field,
g'
Solt Study and Waste Disposal Altetnatives for Proposed
/,
Cohassett Subdivision; 16 units, Chico, CA., 191.
Soil ,,;w Ground Water Study for Keefer Road Subdivision,.
t Chico, CA.j 1991:
Soil and Ground Water Study for City of Yolm, WA 1989:
Acted as a subcontractor in evalt,iating impacts of septic
tank drainfieids on groundwater in and around the town of
'
Yelm. The work lon.' ded providing alternative treatment
f
methods, evaluating lolls Irl the disposal areas, and
studying the movement of .roundwater,
Soil Evaluation and Waste Disposal Alternatives for Poriof
Allym Allyn, 1990.
,WAi.
Worked as `subcontractor in evaluating solis on a 3000
acre site near Allyn, WX to treat 900,000 qpd of domestic
-:
waste.
Soil Evaluation for Treatment, and Clisposal of Wastewater
from an Industrial Park. Tuhalip Fteservat c)n, Marysvillid,
WA, large interfiittent bottomless sand filter, '1990.
Gayla Manor - Recirculating Filter and spray irrigation
for 96 Unit - ubdivision - Pine Grove, CA., 1990.
Mallard Bay Resort - Soil Study and Waste Disposal pians
for Lodge (50 units) Klamath FaUs, OR., 1990. Designed
wastewater' system for scold climate site adjacent to
sensitive environmental area.
II,
EXPERIENCE':
1978 to present
Formed WERT AND ASSOCIATES, INC., a Rosil.tturg, OR
based firm serving engineers, developers, commercial
business, and Dovemment agencies.
- Evaluation d Community -wide waste disposal conditions
- Soil evaluat'ons for 'on-site wastewater disposal
Design ve aste disposal systems.
fDeilar[edi
soil surveys c;f forested upla
Conduct y nds, tree
nurseries, ranchos, agricultural lands, and areas to be
Y surface mitred.
- Appraisal of the soil productivity.
- Design of community treatmentiand reuse systerns.
1980-1982 -
Developed e.s:per mental Wastewater systems fc r small
wastewater fi,;ws, Worked with Douglas CounW Public
Works Department on sand filters.
1970-1972
Served on a SUbsurface Sewage Appeals Board for Douglas
County, Oreg(an as an arbitrator between septic tanl,c
permit applicants and the for%l health department.
PAPERS AND
"Septic Tank Grainfield Performance in Five Willamette
OUBLICATIONS
Valley Soils"; tM% Oregon State Un versity. Maters.
Partial List;
illterature Review of Septic Tank Absorption fields",
19801 Dla;r County Public Works Deparin brit
Roseburg, OR.
" Case Study of Two Recircuiating Sand Fters in aoug la
County , 1980, Douglas County iubiic Works`
Department, Rosi,iburg, OR.
Alternative Methods of Septag-e Treatment and Disposal,
Douglas County, (,)R, 1'44.
�,
"Sludge f
Management Report for Ci
p City or Roseburg, 9R:
Solls, Crops, and Application Rates", 1981.
"Performance
of Drainf field Trenches Charged with
-�
Recirculating Sand Filter Effluent", 1985. In On -Site
Wastewater Treatment: University
of Washington.
I SEMINARS
CONDUCTED:
One Day Workshop on Sails and Waste Treatment for
Sanitarians
- Santa Rosa, CA.
f
+
'
Fate of Nutrients and Bacteria In Disposal Fields - Stinson
Beach CA,
Wastewater Altematives - Anchorage, Alaska,
Tours of Alternative Waste Disposal Systems used 'in
Paradise; Paradise, CA.
r
rt
f
E
Pr
.. VAMANCE GE or:
d�PLIAi�r�,Ot
zbN
Butte County PAannin q ComMiss ori
-
Dote filed ,
Heoringdote _
Action by Planning Commission . -
Action by Boord of Sui,arvi,ors
MESENT ZONING, _1 � N Assw;sor Map Book -o- Page No.� +� Parcel
APPLICANT
ADDRESS:
STATUS OF APPLICANT'S INTEREST IN .PROPERTY:
OWNEWS NAME,
.�� PHONE: C
DESCRIPTION O
AO
Rpceipt
Project
APMEMIDIX K.
Date Viled
Env rot mental Information Form
(To be completed by applicant)
CENERAL II+ FO IMAI IO
11, Name and address of devrloper or Project sponsor
O
C 41-aE
2w Address al project: AD--•'.� �— ,
Assessor s Block and Lot 3 umberI EA_:�
3. dame, address, and tell h numhe1 02: Person to b -contacted
concerning this project
Typ e ,o � project-(.,e.• rezoninsubdivision)
ubdivision
--
5. List and describe any other related permits and ,other, public
approvals required for this project; including those required by
City, tegional, skate and deral agencies .
6. Existing zoning district:
4 .
7 Proposed false of site:
;PROJECT DESCRTS !TZOt4
3. site 5 it e
Square footage Of building(s). t-C.NLl_ p-ua�'t
i Uumber of floors of construction. C.0116t-&40 W
Amount of Offstreet parking provided. U t,.1V tb
12. Attach site devol.o meat plan. <z- ��'
i . Proposed scheduling,
14. projects,`,
15, Antioa,p ated iftcs: ,-Mental development CkohQ4_"b L64
.
arm.. .. ,...1,.. �.. ..
Lf resi.denti,a. enc laude the number of un t
psi yes, and i" of hauseliot~d sire expect sd. v.�, sche�t� of Unita
i
'f' commercial, indicate the type, �ghether neighborli()o i, fyity
reianally oriented, square fooµa e of sales area, and loading;
fr c i lities
IS. If industrial,, indicate type, estimated employment t'eL" shift,
a x 7.oad n facilities. c.i.t�t.S :r.�o tp T _R 04C__
I 9<--If insti a , xn .rate the major function, estimated
emlopment per shift, estim4•ted occupancy, loading facilities
a ,d community benefits to bederi-v0d from he project.
If the project invol�res a variance conditional ditonal use or rezoning
Pplication, state this and indicate Llearly Fahy the application is
required.
Are the following items appii.cable to the project or its effects?
UiLScuss below all, items �checs-Ced yes (attach additional sheets as
necessary)
YE8 NO.
21. Change in ex%stitig features of any beaches, lakes,
or hills, of substantial alteration of ground contours,
n
7.� . Simiificant change in scenic v'ie,rs or vistas from
existing residential areas or public: lands or roads
3, Sa,nif cantty change pattern, scale'or character of
gooeral area of project,
2�� . Significant amounts of soi d waste or litter.
,
25, Change in dust, ash, s�nok�e, fumes or odors in
vicX26 Significant change in lake, stream or ground 'rater
duality or quantity, or alteration of existing drainage
patteriLs ,
.<y .on
levels in the vicinity.
27. Substant..al chan�o �ri existing nose or vibration
Site on filled led laud or on Slope of 3.0 pe scent or more.
ttse or disposal OL potentially hazardous materials,
such as toxic, 8ub8tances, !-1 ar'mmabl6s or explosives
1
YES NO
30 . Suk, `rtant .al change in demand for municipal �-- al services
(police, f -ire, water, sewage, etc.).
31. Substantially increase fossil fuel consumption
(electricity, oil, natural gas, etc.).
1-- 32. Relationship to part of a
- P ;larger project or series
of projects
VIV IRONMENTAL 3DTTI*NG
63
�w Describe the project site as it exists before the project
including information on topography,, soil stability, plants and
i
art-- Mals, and any cultural, historical or scenic aspects. Describe
01Y existing structures on the site, and the use of the structures
Describe the surrounding properties, including information
On Plants and animals and any cultural, historical or scenic aspects.
;indicate the type of land use (residential, commercial., etc.),
intensity of land use (one-famil
Yr apartment houses, shops, department
stores,, etc.),, and scale of development (height, frontage, set -back,
rear yard, etc.)
CERTIFICATION: x hereby certify that the statements furnished
above and z tb,e attached exhibits present the, data and information
required for this initial evaluation to the best of m�` ability, and
that the facts, statements, and information resented are true and
correct to the best of my knowledge and belie -r.
Date
Signature
Foz
-Tf t s Q LSC? t,t r-.-
Dan HaDevelopment Agreement, File 83-25, Annum:
.Review (Continued open from May 25, 1: 89 )
;staff submitted a memo dated May 36, 1989. Staff said the
gCoaunission is now in. a position to consider the annual review of
,his Development Agreement
commissioner Lynch asked since Mr. Hays is no longer involved
with the property, is there any point: in having any more annual
reviews. He asked if the only way development .7ould take place i
at this location was with a development agreement and staff said
this is correct,
;Staff said it istheir understanding that Mr. Plays has no.
;interest in the property any longer, but the plangning Commission
is still obligated to have annual reviews of the Development
Agreement pursuant to Resolution 81.-27.9. Staff said tbo
Gdevelopment agreement was used, as a way to mitigate impacts that
,vere identified for the Industrial zoning and is of concern to
;staff in that the develnpnent agreement has a life of 10 years
and will mature in 1992. in that event, Vince the parcels have
,not developed and nothing ;is happening, the restraints that were
designed into the development agreement, when it matures, will he
i'
�o�Pa
The hearing was, closed,.
it was moved by Cdimmissloner' Lynch, seconded by Commissioner
ositrowski and unanimously carried ac' follows
A. Note that khe Planning commission has conduc_ad the :annual
review of, ',he Development Agreement and finds that there
have been no violations of the Development: AO-:eement to
date; there has been no new development, as yet on the
property. if any exceptions to the Development .Agreement
are proposed in the coming year,, the matter shall be
referred to the toard of :Supervisors for termination or
modification vroadddings pursuant to Resolution 81.-22:9
(Procedure's for D velopment Agrp.ements )
ti; -PLi"��3 ti CCS �Mj`sl( s[iF"t' UTFSS L�Lii1 81
,.....V._ _- -