HomeMy WebLinkAbout80-122A UPPER RIDGE & LIME SADDLE GPA (5)C
`i`A131,1s 2
1.Xz5'iiNG AND PRQPOSPU ACREAGE IN PROJriCT AR1:A
UPPER RIDGE (Chun
.and Use
Category
Iiv1Sti11g
Acrcago
v
`total
Proposed
Ac eag'e
�u
Total
Change
A-17
236
1.2
5283
27'.1
+5047
2139
LDR
1613
8.4
2521.
Ll, .9
+ 888
54
MDR
2462
12.6
35
0.2
-2427
99
Com
27
0.1+
211
1.1
+ 184
681.
Till
9878
50.7
4266
21.9
-5612
` 57
GC1:.
4974
25.5
6064
31.1
+1090.
22
Pub
290
1.5
1120
5.7
+ 830
286
Total
1-99.500
100
19;500
100
0
PARADISE (Inc.:
y
Total Ac ottge ('.0tirtty 4- Pjj aajse H yN) (48 Square Mil les)
24
a�
H
t~
c�
c
{
y
Total Ac ottge ('.0tirtty 4- Pjj aajse H yN) (48 Square Mil les)
24
- _ T , MOM
Population. The Paradise urban area has experienced one
of the highest growth rates in Butte County during the past
10 years; According to preliminary 1980 census .Figures,
population in the Paradise urban area hys increased more
than 70 percent, :from 15,879 to 27,562, ;n the period 1970
to 1080.* Within the Paradise incorporated area;, tb.e popu
lation gain approaa,maLOCI SO percent, increasing from 14,539
in 1970 to 22,145 in 1.980 (Preliminary 1980 Census Data) .
These increases represent annual average growth rates of
5.67 percent and 4.30 percent respectively. The 1980 popu-
lation estimate for the ontire County, based on data provided
by the California Department of Finance, is 141,200. Census
data for 1970 shows a population of 101,969. The federal
1980 'Prelimina.ry Census recorded a population for Butte
County of 139,315, representing a gain of 37,346, or 36.62
percent. The County's annual average growth rate for this
period amounts to 3.17 percent: ,
Construction Of, new housing units has exceeded population
growth in the 10 -year period, :1970-1,980, perhaps reflecting
the .local housing industr.y's belief in a growth market, The
average household population for the project area varies
:from 2: 30 to 2.34 per dwelling (Preliminary 1980 Census) ,
The 1970 figure for that category was 2.44. Tho, decline in
household population would be expected in aft arca that
attracts an unusually large number of retired or semil;ret red
persons in older age groups.
Tables 2-A, 2-t3, 3 and 4 display the population projections
for the County, Paradise, anci Upper Midge urban area, 'based
on 1014 (.1.04) and high (4.0%) growth rates. For Butte County
low and high growth rates would equal 1.5t, and 3.0t respectively.
As a result of General plan amendments that reduce density in
the Paradise area, and the on=going development of a limited
supply of acceptable building lots, growth in this area should
decline over the long term .from previously li gh, rates.
*PopuIc, ion figures lire based on 1975 census tracts and revised
1980 eonsus tracts Cor' the Town of Paradise and griper fridge area.
y
►ABL 2-A.
POPULATION AND BUILDING I,sTIMATI S i
VOR UPPER RIDGE AM .AND COUNTY1
(Low CR01VTI1 RATE'
11980 population and number or!)/Us based on 1980 Preliminary
Census Figutogo Cities, coun.t7.es ,wd State
2Assume 2,0% grdtgth rtu
3As5umo 1..8-6o grOWth rate t
Qac, rate a 18,'SW 1.01 persons per household
'Vat, rate 7; %; 2,40 persons poi household after 1080 `..
1.
i
�G
Project Areal
Couinty3
Year
Popu-
lation
D/U 4
Popu-
lation.
5
D/U
1980
5,080 3,019
139,315
61,114
1985
6,182 5,674
15Q,082
66,307
1900
1,524 4,' i i . 1
161,681
71,4.31
1895
.9,157 5,442
114,176
76,952
2000 `
11,144 6,623
187,637
82,899
LF .,
TA13L:E 3
POPUl,ATT,ON AND BUILDING 1iS`1MA` ES
FOR 1'ARAU15) /UPP]'R RTDGB AR IA AND COUNTYI
(LOW GROWTH RA'CI )
Project Areal
i
County
Year
Popu-
latxon
I)/U4
Popu-
1ntlon
D/U'
1980 27,562
13,0976 I
139,315
61,114
1,985 30,431
14;1.30 ;
1.50;082
66,307
1990 33,596
1.5,610 !
161,681
71,431
1905 37;090
17,233 i
174,176
76,952
20.00 40,947
19,025 ;
187,637
8,899
11980 Population and number of D/Us based on 1980 l'relimindry
Census Figures
Assume 2.0 o- growth rate
'Assume 1.5% growth mate
4Vac, rate 6.4%, 2,25 persons lion household after 1980
SVac; rite 7,8t; 2.40 persons por household after 1980
6Vac, rate for 1980 census tract 17 (Upper Ridge) 18,5
, l
z 2
`VA 13 LE 4
PUPLILATION ANO BOILDING HSTINIATE8
FOR MADISE/UPPEk RTOGE AREA AND COUNTY1
0IT611 GROWTH RATE)
Project Area'2
County 3
Year
4ation
4
D/U I
Popu-
lation
IVU
1980
27,562
13,0976
139,313
61,114
1985
.33"831
15,580
161i504
71,353
1990
40,798
18,086
187j227
82,718
1995
49,637
23,063
211,047
65,892
2000
60,391
28,059
251y617
111,165
11980 06uldtlon and number of D/08 based on 1080 Preliminary
Census Figures (assiumo 2.2% of total population in group
quarters)
2As8wne 4M growth rate
3Assumd 3,0% groWth tate
4Vat. rate 6,4%; 2.28 pors6nS pe74 11ousel'old, after 1080
SVadi rate 7,8t; 2,40 persons pot Household after 1080
6Vac, rate for 1980 ebh8u8 tract 17 (Upper Ridge) 18,5%
Based on the atia;�ianuactJo�a7number Ug
t as (lent
tbeot
porill.i.tted
71, hold ink
.til oacli
Capacitiestt fot"'
use Category,
the project area are listed belata.'*
TAU1 5
MAX NUM PO INTIA1, 1)/Us
Uh�1?1I[t 12CDG1I **
Potential
Land Use t;�i stiL t.cttta.al.
�oIl U�
/
Proposed
Acreage
PotentialU/Us
Category ACtea�;e
,
i236 "36
5y28g
5,28`3
A- R
LDR 1,653 6,5'x2
2,rs "l
].0,084'
t`tntt 2,462 I.9,lior)
35
280
9 2�! i878
SIM �
21 26a-
f
(0L 4,974 124
6,064
152
m_
2G-835.
'['ota.L 19,183 ,
j.g,169
:1.5;906
*1`la�titnum number• of D/Us for eta.tab land
A-ft (I. tI/U/tiC��e) ; i�l�R
use Category
CA `)/Us/aCt;a�
based
, sMDAZS o'n
:
iellowing,.
�1Cre� � 11178 X12 /tJS/act`ej , TNI �. (I25
1�
ti5 11/i1%FllG2�
*Tlx stip grid 17rbpo ed ac ea C it urea
g for Contmet�ti.h], an6 Public
they not generate
1aric1 use Clategora.es here ot>iittecl>leiteliC outldrt�cl
n g trUCti.e'n tVitiiin t
reSclr;nt�.a1 S.
CUrI
'0
l
Land Use
Category
Existing
��»reag;c
PotentialProposed
I7fU
Ac-rcagc
Pote�;#,til
D/Us
LDR
4,145
16,580
4,145
1.6,580
MDR
4,790
38,320
4;790
38,320
HDA
541.
6,492
541
6,492
Tb
10
10
-
60L
9 IS 0
23
930
23
Total:
10,416
61,415
10,416
61}415
allow a maxiitiunt of nearly 16,000D/Us ajtd a population of
over 27,000 in the Upper Ridge area.* Considering the
probability that not all bind will develop to the maximum
densities Billowed by the General Plan due to septic, access,
lot configuration, and other factors,, it can be expected
that the population will double or even triple from the
present population of approximately 5,080,- and remain within
the density constraints Of the proposal.
The Upper Paradise Ridge has two resources that are especially
,important to the entire Paradise Ridge as well as the re-
mainder of the County. "The manufacturing of lumber and Mood
products accounts .for about 4% of the'wage-and-salary employ-
ment in the County and a healthy share of basic income to the.
County economy. Timberland also has significant value for
wildlife habitat,_recreat•ion and watershed protection.' The
watershed is part rtilarly important in this area since Magalia
Roservo r and Paradise Lake are Water supply for the Town of
Paradise. The proposal will. "limit the use of timberland to
forestry activities and compatible uses;, retain in a "Timber
Land" category areas on the Land Use "Map "where location and
natural conditions make lands Well suited for timberland;
While considering for non -timber use areas where urban en-
croachment has made inroads into .umber areas and
where past official actions have planned areas for development;
maintain quantity and duality of water resources adequate for
all uses in the County; control devlopment in watershed areas
to minimize erosion and water pollution,"
While the need for homesites of various sizes, densities, and
locations have been discussed, tLe need to limit densities in
the Upper Paradise Ridge area has not. Aside from the pro-
vision of Open Space and i+elbow roost" around individual lots,
densities must be limited i.n some areas because of soil, slope;
septic capabilities, water availability, and other natural.
site %!llaracteristics. Proximity to public facilities, emer-
gency services and commercial area's is also a cons"idevat;i )n.
A mayor planning concern in the project area is the traffic-
caveying capacity of the road network. Almost all of the
existing development in the upper ;ridge area uses SkyWay as
its solo across. As the population grows and development
intensifies, traffic congostion will increase. BIOckage of
Skyway at Diagalia due to accideht or other cause effectively
isolates most Of the population. A stated raoIiey of the
Goncral flan is to llbalancL, residential. denstti;os With traffic
carrying capacities of oxisting And 'proposed ili.reulation plans",
't'h'e proposod laird o Plan recognizes the limiting influence
of Skwyay and will help reduce travel out of the Upper Ridge
area icy providing aroa for amplo commercial doVelhpment withilt
tilt area,
*'rho Population would be considorabty higlier if more residents
permanontly IhOV0 into the Upper ;ridge, decreasilhg thb nuittber o:
atoll i rgs used as second homos .
�3
General Plvn,. hand Use man and policies
The current Gencral, plan designates approximatoly 20t of
the 15,100 acres in the project site I'Low Ilcnsity Itesido ltia"ll
(1-4 dwelling units per l;ros;5 4icrc) and I'Modium Density
Rcsidential" (5w5 dwoll i.ng uai is per gross atrc) . Approxi
inately 50% o'.r the site is currently designated tither "T;imber4
Mountain" or "Grazing and Open Land". "Commercial" and
"Public" dosignat:ion account for only 1,s% of tho tota,,�
project site (goo Vigu're 4).
Approximately 2000 acres (11%) of tlic project site are •')ro-
posed for "LOW Density Itasidcnti,a.l" (ul) to 4 divol,ling units
per a "'
acre) anti .odium Density Residential" (up to 8 dwelling
units per acro) with am additional 5000 acres (27a) pr6posed
for "Agricultural Residont:ial (1-40 acres per dwelling Unit).
"Tinrbor4iountain" and tlOrazing and Open Land" designations
are proposed for approximatoly 10;300 acres (55%). Those
designations account for mono than 001 of all acreage in the
project sate (see Figure 5)
As noted in the General Ilan text, '"because..,:,desires dor the j
future are so numerous; diverse and idealistic, sonic conflicts
between policies are unavoidable dable anti to be oxpectedi No one j
policy by itself should always determine County action; 1,
decision -makers must considor all adopted policies which are
relevant to a particular sifuat o1on. The continual interpre-
tation and wpplicatlo t )f policy statonionts to individual y
situations will frequently result Ln compromises reflecting d
balances and priorities among conflicting policies."
The proposud. Genoral Ilan revision for the Paradise Upper
Ridge area involves complex issues which, as noted above, may
41so invoke conflicting County policies
There ate at least three pVinlary P" anting :issues related to
the proposed project. They invol!,. (1) population growth;
(2) resource manigcment; and (3) residential devolopment.
Each of those issues is discussed in tite "following paragraphs,
Since 1.970, the project site has rxporloncrod one of the
highest growth rates in tile, County due in part to the develop -
m '
erit of over 4200 'lots ill te Paradise 1'i,r�es project, and in
part to the ''ovorflow"" from the City of Paradiso, The highest
growth rote is expected to continue into the near futut o
The policy of tiie Gcncr'a1 t�lart is to "allorW reasonablo
" f oodom of choice" Of sites es and facilities for tite population
growth of the County , „inti ate; various sections" and to
"designate adequate land for rroe market competition 611104
Landsuppliol's to avoid a"rt,Lricall,y constricting laird ava�.l-
ability:'" 'file proposed Goncral, Plan Map dosign,atiens would,
allow a maximum o.lnearly I60000 D/Us and a population o;l'
over 27,000 in t11e Upper Ridge arc. ,* b the
pl �' ConSidcrxn r
Prababil ity that- no't all land Will clevolop 'to the maximum
dells tics allowed by the Conora.l Pian clue to septic, access,
lot coil figuratiolt, and otlier .factors, it can be eXpected
that the population will cioubl,e or even triple from the
present population of -jpproXitUately 5,080, and remain within
the density caiistltia.ints of the proposal,.
The Upper Paradise itidgo liras tavo resources that are especially
important to tlic ontire paradise Iidgo as well as the l e=
maincler of the Country, iMac Illallu.facturing, of lumber and wood
products aCCOLIntS for about 4 of the wage -and -salary employ
iiient ill the County and a 'healthy share of basic, income to the
Ceunty economy: Timberland also leas significant 'value for
Wildlife habitat, recreation anal aysitarshed protection," The
watershed is particularly iMPOrtant in, this area since 1•}agalia
Reservoir and Paradise lake are water supply ,for the 'Cohn of
Paradise, Che proposal vi11 ''limit the use of timberland to
farestry activities and compatible uses,, retain in a "Timber
La,ftd" category areas on the Land [)se Map where location and
natural conditions make lands well suited for timberland,
wh :le considering for non»t,i.mber use areas where urban en- -
crtlac}iment has tnadc inroads into t ober areas and
Where Bast official actions have planrled areas for development;
maintain quantity and duality of wator resources aeoquate for
all uses in the County; control. development it watershed areas
to minimize erosio}1 and water liollution:'i,
While the hood for liomesites of various sizes, densities, and
loci
4tiolas have been discussed, t}le need to limit deft sities in
the Upper paradise Ridge area has not, Aside from the°pro
Vision of Open Space and "elbow riaom" around individual lots,
dcnsitie8ftust be litilltod 'ft SOPticlxcapabil.ities, Avater�availa mV areas because or soil; slope,
slabilaty, and other natural
r Iacter'i �fi es, pro. Xi111.afiy to public facilities, Omer-
g'ency �sor'vi'eeS and �"6407'L d a "r'11, '1; Also a collsirioration4
major, a,lxnning concern t 'tile project urea is tile. ti'afiL=
carrying capacity of tho road network,- Almost all of the
eYistilig dcvulop-mcint in the Uppor Ridge aroa uses Skyway as
its solo access, As 'tile populgtion grows and develoilme t
intensifies, traffic congestion will 3ncYease. Blockage o
Skyway at b}agalia clue to aCcicient
or other cause cf -cet vel'y
isolatos most of tho poPula-tion, A stated policy of the
General, PIan is to "ba,lahce "S'dential dcnsitios with traffic
carryir l; capacities of Ox",8t. K and Pro}yosed circulation plans,,,
Tile proposed Land Use Plan `t•ecognizos the limiting irlflixenee
of Skyway and will help rec}tice travel Dolt of
the area rho Upper Ridge
area by providing area for ample collunel�cial dovoiol>nicnt within
,
}iopillation would be consa.dorabl.y higher if nioro residents
wfl
p,nfinchtly move into the U por Incl e docreasihd rile nrirnbcr o
"01111198 used. as second iionjes. ,
Tit anothor section of the ccneral. P:t,tn, tilept,rroo,4o rot
separating land uses is disc:ussed. `I"he' Plritaxpl.a,;i.n:t tlti;tt
I!
land use catogorlos conlbilte similar and c:om1i ti,bl,c tletiv-
'ties into group8 w,i th d°ifferijIg neocls for location and
rtpace. .. The vctri.ot,s .hocation and space recluiroments of
land uses can only bre sat .sr od by soparating uses Into
categories and attempting to provide suitable sites for
each category," I'hcK
genoYn,l goals lcre ars to maet tlac
unique requirements or caclt 1,ancl use activity, and reduce
potential conflicts among land Uso.s in proximity to one
another. Where incom,patibia land uses appear to he develop-
ing near each other, the plan rocommands the adoption of
measures that Would m;itigato potential conflicts, The
preferred goal, however, as to sufficiently sapardto in-
compatible land uses; to the extent that their activities
Will not intrude upon one anotihei,�.
The County vecognizes the need for a satisfactory'Supply
and variety of housing 1'or its residents. The General flan
postulates that "satisfaction Of housing needs are, ,
dependent on balancing housing supply and demand... The
County can best assist tale housing market by assuring enough
suitable space for ne« hou°si.ng construction."
zoning
The project site. is now zoned for a variety of uses, ranging
from commercial and residentiii to timber preserve and. rec-
rot tion and otherpublic uses; AIost of the proposed tand Use
designations will conform to the existing zones; a fete areas
Will retlul'to ro ~ming Ill order to conform to the revised
General;. Plaii clOSsificati'ons. The rezone portion of the
proposal is ft -Om A-20 A-2 Ltd., Alt=i`i14-3 and S-1.1 to TAI -1,
TM -2, TAI -S, TNI -40j VR -5y Cit-dq, (I - C, C�CC-2, SR -1, R -C,
P=Q, wr-I, 1`illl�, AR4111-1, AR-Aili-3 aitd A:C6
(See Table 6-A fo', the Amount or 11c:rcage in existing and
ljroposed zones, and Vigure G for their location,]
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FlGURt 5
bPOphSDU ONRAD18t Altl?t
LAND USD MAP
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T22h.
IRRIGATtON
" Yy.
3.10 Circulation. The primary access route into the Upper
� I
xcg,e area, north of Paradise, is via Skyway, Other major
traffic arteries that provide acce8.4 to tho southern per-
imeter of the Upper Ridge include Neal Road, Clark Road
and the Pentz-Magalia,hlighway. Nimshow Road, Humbug Road
and Coutolonc Road serve as major traffic corridors within
the Upper Ridge project area; All of the -se corridors gen-
erallt ;follow north -south axes.
Ma;or cast --west roads across the face 'of the Upper' Ridge
are limited duo to the presence of canyons, large bodies
of water a'nd rugged torrain. l-iupp Coutol,enc Road connects
the Cle'-was •jid Coutolenc road in the northern section of
the Upper` �?.bc though no otlicr road exists that links
the eastern and western extremities of the project site
north of Paradise. Sections of Nimshew Road, Humbug Road
,and Hupp Coutolenc .Road are unimproved, allowing only
limited travel: during the 'winter months
Traffic counts fIor the major north -south, arterials are
l is,, d in Table 8
1
TABLE 8
TRArlrIC COUNTS FOR MAJOR
pROJLCT ROADS
tip....... .. ..... .. ...... . , ,
24 -'Hour
Road
Location
volume
Clark
x'ntersection With
7> 9y3*
Pearson
Clark
South of intersect;i.on
200
with Skyway
Coutolenc
Near intersection
With Skyway
1,000**
Nimshew
Near bitorsection
452**
gith skyway
Peutz-Magalia
Highw iy
intersectionwith
Daillc
1,S2�`*
Pentz-Magali.a
No"T inter#section
ilighway
with. Skyway
skyway
Near intor8octibn
wAth Got^' olenC
10,o00**
IgIl traffic
counts �'* 1.081 traffic 'cottiltS
tip....... .. ..... .. ...... . , ,
3,11 Public Ser+tices
Schools. The project, lies within the boundaries of tb,
Para i e Unified School District. Several private schools.
also operate in the area. The names of the s"hools, en-
rollments and capacities are presented in Tabl- 9. The,
distance to these schools from the project si a ranges
from one to 13 miles. Bus transportation is normally pro-
vided for all students. Grades 2 and 3 at Paradise Bl -
mentary School and Ponderosa Elementary School arc currently
operating on double sessions. Note! i There currently are
no public schools in the Upper Ridge project area.
TABLE 9
8CI400L ENROLLMENTS AND CAPACITIt$*
School
Public
or
or
.Level
Census
Date
Erlroll-
menu
Capacity
Capacity
Paradise Adventist
1'ri:
K-8
1-1-81
2.04
Not
Avail.
-
VaradisA Christian
Pri.
I K-8
1-1-81
130
Not
-
(Clark Road)
Avail:
Paradise Christian
Pri.
K-8
4-0
Not
4
(Laurel "Drive)
Avail,
Paradise tiementaTy
Pub,
k"6
1=1-81
822
824
99:8
Horace Drakebill**
Pub,
K-6
11.80
38
No
Avail..
Paradise Intermediate
Pub:
7.8
1-1-81,
549
505
108,7
Ponderosa Rlementaty
Pub,
X-�6
lul-8i
089
878
109;2
St: Thomas note
Pri,
k-8
1-1.81
154
Not
Avail,
Paradise High School
Pub,
9-12
11-80
,15193
1,200
99.4
Ridgeview Continuation
Pub.
9-12
11.80
87
iio
79:1
Tot al -
-
4,17:3
According to 'fable 9,_a totatl -'of 4,173 students attend
public and private scltoo� S in t{lo Paradise are4i. �1ppr.ox
mately 1,,80 (,7,1%) of thr,sr students are enrolled in
secondary (grades 9-12 st'irr,, s+
1 Of the 2,893 students
attending elementary (grac,-,e, K=8' schools, 528 (18%) are .
enrolled in private schoojl , Th0 'paradise Unified School
D� strict has historically ;.9perlt nced an anni,tal average
g
iowt rate of three percoAt timoi,tg the student population.
Thi, i )resents a lower gt•Jtk7th rote than roeordod for the
ger: L population in Pa :'t? {a se (4-30 to S.67% annual average
increase), , ja,, . eating a ds?CI I1.1
ning .Gamily size,
Sheriff. Law enforcement in the, project area is provided
yyttT e Buxto County Sheri �f s Departmcnt. A staff of Twelve
sworn officers currently Jperate on three shifts out of the
Paradise office located ('n1 Elliot Road. The clay and graveyard
shifts each have two pat„,,ol bh,ats While the saving shift has
three beats;,
j
i
The Butte County Board o4' Supor,,isors recently voted to add
27 new personnel to t} ,� herif;f's Deparfi lent, However, no x
new personnel will be added to the Paradise office,
The project site lies A41 'thin a regular patrol teat area,, but
is patrolled with a variod fronucncy.
The Sherif'f's Departpr--v e,st,tated response time to areas
throughout the project bite ranges from 3#.15 minutes.
Fire, Protection: Tile "Butte Cot.Inty Fire Department, in
cooperation with the Ulifornirt Department of. Forestry, :is
responsible for fire �Irotection in the project area, The
nec,rest centrally posit.oned fire station is locatedin
Paradise Pines on the Skyway within the central project area.
This station is manned by 2 regular and 30 volunteer firemen,
The condition of the t,LI-e trucks, which includes 2 tankers
and 3 pumpers, is considered to be very good.
FeSponse time .from the 0aradisr Pines station 'would range
.from i to 8 minutes to various locations on the Upper Midge:
Other stations that solrve Zile Project area include the be
Saida Station 1131; Coul,olenc Volunteer Station on upper
Coutolene Road; Magall m Volunteer Station incl the Battalion
{eadquartors in the noj''th section of Paradise. Response ,
times may ra go Up to 15 minutes to the southern, extremes
of the project site;
titbst of the UIJPor Ridge has been classified as a ok,gb1i
natural fire h6tard arco., The, ratingince(!. ',ses a a "'Extremely
in the eastern pdrtion3, of the project site (Butte County
General Plan; Safety 111tment)
41
G
Gas and Electric. The Pacific Gas and Electric Company
maintains power lines throughout the project area.. Avail-
ability of natural gas, howeVer, is limited to incorporated
areas in Paradise. Mr It residents in the County po''ti.'o115
of the project site use electricity or propane for heat-ng
purposes
Tele hone, The Pacific 'Telephone Company serves users
t roug out-the entire project area. Both underground and
pole telephone lines are located along streets and overland
right-of-ways.
Water. Residents in the project area may obtain potable water
rom individual wells, Magalia County Water District and the
Del Oro Water Company, The Paradise Irrigation District serves
only the incorporated Town of Paradise. Adequate water avail-
ability from individual wells must be determined on an indi-
vidual site basis. Del Oro Water Company has supplied water
to many of the new subdivisions recently developed on the
Upper Ridge,
Sewerage. At present, only septic-leach field systems provide
treatment for effluent generated in the project area.
Health. Residents in, the project area are-primarily served by
t e Peathei Cover Hospital for emergency and out`oatient care,
located on Lentz-Magalia Highway in the Town of paradise? 4
miles south of Magalia. Paradise Convalescent Hospital is a
major provider of nursing and convalescent care to the elderly.
Solid Waste. Solid waste collection is provided to project
area resp tints primarily Uy Butte County Disposal, Modern
Garbage service, 0 K Sanitation, Tomlin's Hill Garbage Service
and Paradise Garbage Disposal. Many residents also transport
the.,t wastes by ,private vehicle to the County landfill site
on Neal Road
42
3,1.2 Avchae0_,Logic Resources. '1'lie proposed areas Cox rezone lie
within the area that once was occupied by the Konkow Indian
people (northwest Maidu) The Konkow followed a hunting and
gathrsring form of subsistence that uW I zed the natural re-
sou,.,ces of their territory, which required a yearly gathering
cy,,:le This cycle involved the exploitation of most edibles
w;j,tliin their territory, requiring their migration into the
mountains in the summer to hunt deer, with a return to valley
areas ;during the spring to collect grass seeds.
The archaeological site records maintained at. California
Mate Univer ity', Chico, .1ridicato that 16 previously recorded
prehistoric bites are located withinor adjacent to the pro-
posed rezone area. Of :these sites, 13 consist solely of
bedrock mortars, which were utilized by the aboriginal people
in connection with stone pestles for the preparation of _Various
types of food resources. One other site consists of bedrock
mortars and lithic debitagc, which is the result of stone tool
manufacturing. Two of the sites are classified as burial
grounds based upon the presence of human bone and other types
of artifacts found at these sites. No permanent habitation
sites have been previously recorded within the area, but a
number of rock shelters, utilized as temporary camps, have
been recorded within canyons a short distance front the area.
The presence of numerous bedrock mortar sites and the absence
of larger habitation sites indicate that, although the ab -
Original population frequently passed through the area on
their seasonal gathering cycl.ey they only stayed there briefly
when traveling between the valley and the mountains, The
presence of the two burial grounds does not fit into this
pattern, since it has been reported that although the Konkow
normally buried their dead, cremation was used when a person
died away
on�sitestrwithinvillages, Unless there are
Y pe general area, the presence
of those burial grounds remain an Anomaly among normal Xonkow
practices
17111storic Back�round, t'arly hi�,to-t• c activities within this
area were tie ate`Tt'o gold mining and the lumber industry. The
town of Dlagalia, originally 'christened Dogtown and later to -
named Magaliu in 1862, was founded in 1.8550 by t. B. vig�A�n and
Charles Chamberlin. South-southtmst trending Tertiary river
channols pass through the aroa whore, gold bearing deposits
have accounted for a number of mine, iii the area, usually
worked as drift mines, The Magalia Mine was operied in 18550
i and large-scale miming continued into the 18h0"s. Small scale
mining continuod from the early 1900s t;lirolugh the 1910s,
reviving again after Wovid war tI and continuing through tile
present. One of the most notable .finds within the area was
4
i
I
the .famou3 54' 'pound Willard (nogtown/Magalia) nugget
discovcrod in 1859. ,
The lumber industry in the Area prospered in part, as a
result of the Civil War; the ,South cut off supplies of , »
turpentine and resin to the North, which were vital fo
the shipping industry. Magalia, which supported a large
number of Ponderosa pines, quickly became: the center for
production of turpentine and resin, over five distilleries
were ,located within the ar,-ea,and Niagalia became known as
the Tur pontine CzpitiY of 'California, The termination of
hostilities in the �rivil War also hastened the demise of
the turpentine .industry in California. though the lumbering
industry continued to flourish.
Sensitivity for Cultural Resources, .,,wJd upon the pre -
v ously recorded prefi 'toric sites and historic background
of the area, a wide variety of Cultural resources are bo-
lievcd to exist within t.lic proposed rezone area. The most
common typo of prehistoric site typically found is the
bedrock mortar site, which commonly occur adjacent to drainages
and springs, The presence of two burial grounds adjacent to
this area indicatos the potential existence of permanent
habitation sites, or large seasonal base camps within the
area, ` i ere is also a higl prob.bil ty of :locating' rock
shelters, utilized by the aborig,lrial population for temporary
occupation sites along Canyon wall's itr he area,
Historic sites related to gold mining and the Lumber industry
will occuti as two general typo -s.- activity loci and 1 ,bitation
areas, Activity loci. would include mine shafts, _dams and
flumes, and lumber mills, habitation areas would include
cabin flats) mining and logging camps,Many or -the historic
sites�e.xpectrl to occur within the arca have undoubtedly
been destroycd by rrcelit do'volopment. nue to the intensity
of. early historic activity within the area, however, a number
of these sites still reiilain,
4A
EWA_.
+. roLenriaa fkuverseSa &nllacant Impacts and Miti ration
Measures. Tae ,7ollowingse-.ta.on inc a esana yses,
figures -and projections based on thr most intense ;and
US( alloaved tinder proposed land use categories. Al-
though proposed zones 'would reduce the severity of im-
pacts, future rezones to allow greater commercial, Use
or higher density residential development in theproject
area is potentia:ly feasible. A "worst case! scenario
is therefore posited for evaluation
)Vater Quality. Based on .findings in the )Vater�
Quart
Management P an .for Paradise and Ala alia Montgomory
lingincers, 1979 , at verse :impacts would be expected from
continued buildout in the immediate Paradise area.
Impact 1, An increase in the concentration of coliform indicator
►void occur In storm runoff thatrou
asses through �,h developed ,
areas, particularly during the dry montlis. Urban storm
runoff that reached natural drainage channels would ultimately
increase pollution lej°els in local streams,
Tm2aCt_ As buildout proceeds, the capacity of the soil
to ,treat and absorb contaminants -from -septic -leach field
systems 'would approach 'saturation. `I`he concentration of
eonu;aminants in shri11OW aquifers would increase, subse-
quently increasing the amount of poll.utdtts flowing into
surface stroams farther down the ridge
The above imiacts potentially pose a serious health hazard
to the public ,front contamination of shallow wells and streams
used for recreation and occasional consumption. Stream life
Would also be adversely affected.
i
Mitigations The following mitigation measures are extracted
in toto ,frola the Nater Qual:it Management P1 �h, (Montgomery
13ngance:rs, ,
Method of )Vastewator 1. GonstrUetionof a community
f�lanagemont collection system and leach
r1old to serve the area along
S'Yy qay Boulevard south of
1l1liott Road,
2. Continue(! use of septic tanks
rand leach. fiords or seepage
Pits for the remaining piortloii
or Varadiso and all of Alagalid.
:'i, hVA' I"ation of the us,n of
elevated beach fields Lor �
oxist hg residences located `
In drainage areas, {
I
Installation of On -Site
Sys terns-
Maintenance or on-Sa.te
Sys tents
Monitoring Ptograins
r
Water Conservation.
�r2'ot�irit i,ianu �entent
46
d Use of diial leach; ,Fiel:ds +by
cotnmcrc;�
establishments
that genu`rate large quantities
Of wastewater;
S. Establish a minimum percolation
rate Of & min/in unless suitable
soil is alrail,ablo below the
system,
'. pstablish a minimum lot size
for single-family homes in
accordance with tits Subdivision
Ordinance.
7. Establish a Minimum lot ;j'
.for ►nultifaniil.y and commercial
developments.
8. Specify the installation of
manhole risers on septic panics.
J, Homeowners institute a voluntary
maintenance ;prOgrgm which; in-
cludes septic tank pumping once
every five )rears,
l.o. Licensed pumping contractors
submit sciatic tank pumping
records on a qu-rterly basis.
The Butte County Division of
T;nvironmenthl Health should J
plot the ,pumping tecor.ds acid
repair records to identify
Potential problems:
1l, Expand the existing water
quality nonitoring program
to include groundwater 7
stations Sn addition.; period-
ically petform chemical analysis
on the wator samples,
12. Establish water conservation
measures to maintain a 'Water
use, of 280 gped.,
13, Ut;i;l.ize,the results of the
proposed water quality blonitor�
ing program to develop growth
management goals.
I
r
Ih� a.cL_ t 2-A: Development adiacent to, or within the water'-
slimes r-ec arguing the Magal.i,� and Paradise Reservoirs would
increase the potential for reducing the water quality in �
those reservoirs
.Mitigat:ions (front 1975 LuMnology Study)
1« The Paradise 17•rig ition District (PTD) confirm and
refine the hydrologic balance of •he Paradise and,
Magalia Reservoirs to ascertain if large amounts of
wetter are being lost from storage in Magalia Reservoir..
This could be accomplished by utilizing the existing
measuring weir above maga"li,a Roservoir and installing
new measuring stations on (a) Iaittle Butte Creak above
and closer to Paradise 'Reservoir` than the one used for
this study; (b) Mosquito Creek; and (c) Fir Haven Creek,
2 PID conduct an operational study of the tufo reservoirs,
with the objective of forestalling or lessening the
possibility of algal productivity problems. This study
should include the effects of installation and use of
multiple -level, outlets ori both reservoirs.
3 PID monitor the nitrogen and phosphorus concentrations
of the surface and bottom waters of the two reservoirs
on a bimonthly basis during March, April, and May to
determine if these nutrients are increasing in the
reservoir waters,
4. PID monitor the volumes of phytoplankton through-
out the water column on a bimonthly basis during March
April, and D1ay to determine if th:e biological produt
tivity in these two reservoirs is increasing.
PID update and evaluate the basic Water quality inEL-,ma4
tion in this report every 5 years, or as soon as the
total population oil the watershed reaches this predicted
levels expected to cause problems, This would allow the
District to determine oe detect a buildup of adverse
conditions tMdt would affect its water supply and to
initiate cotroctiv'e measuros befo'r'e a problem occurs.
6, tuttc County co,ttinue to enforce regulations rogl icing
at .least 50 foot of leach line for each bedroom in a
home, and that regul.ati.ons be adopted for (l) prohibit
-
I the installation of leach fields in this Watershed
on siopcs of ittore than 20 dogirees (2) roquit ifig that;
6-A
r
1
where feasible, a vegetative coniferous cover 'be
maintained over or witidn 25 foot of each leach field;
and, (3) requiring an alternate set of leach lines for
each 110IfIC51te, thus pormitting occasional resting anal;
rejuvenating of oftch loach :field, and ensuring More
efficient opo•at.i.on or the system:
7 When a 'bu;i.ldup of t.1ther nutrients or phytoplankton
volumes becomes evident in either of the two reservoirs
Butte County 'prohibit ,further devel,opmcnt requirinv,
disposal of wastes to septic tanks and leach .fields
and initiate plans toward constructing sewage collection
systems and treatment racilities .for the residents of
f
the area,
1
Butte Count) should also continue to restrict development
adjacent to or within. the watersheds of the reservoirs
through appropriate zoning and Ocnerhl Man land use desig-
nations
I
X46.13
+i .
Traf fic_ Impacts . Based on n projected high (4.0 percent)
gro` Wth rated the project area, average daily and hourly '
tral.i is volumes were calculated for major roads in the
project vicinity,* and shown in Tables 12 and 13. Table
14 depicts lidurly CloW.4, basred on maximum potential build-
out in the plloject sate.** ' -
TABLE i C'
F,)VLL OF S E RV I C B. STANDARDS**'*
FOUR LANE ROADS AND HIGHWAYS
WITHOUT .ACCIiSS CaNTROL ()3oth Directirn8)
Traffic Operating Total Vehicles
Flow Speed_ Per Flour
A Free Flow X60 1,200
B Stable Flow 455 1,600
C Stable Flow X45 4,000
D Approaching
Unstable Flow s35 6,800
ES Unstable Flow ss 3'0 8,000
TABU; 11
LEVEL OF SERVICES STANDARDS
TWO LANE ROAD
WITIiOUT ACCESS CONTROL (Both DirectiOfis)
Massing Sight Total Vehicles per -Iour
Traffic Operating Distance 2 Lanes
Floe `, Sppced I , 500 feet- t (both directions,)
A
Free Flow 60 100 400
13
Stable Flow _et�.50 80 700
C
Stable Flow X40 60 820
D
Approaching;
Unstable How S.`35 40 000
I
Ii
Unstable Flow .5:30 N.A 2 �000
Asstir►ie b I ach I1 U generates 9 trips per play.
+*ADT lased on existing ratio ofSelOct ed road Counts to total_
ADT in project area. project Asea includes Town of Paradise
for tra fi.c analysis,
i*AI3ased
on 11hCortlation, contained in tile HihWdy.Cgpacity,
Manual Man, 1065, publ i,shed by the Highway—Ttesearch ..oar
,_
47
TABLE 12
AVERAGE DAILY TRAFFIC FOR
AUJOk ACCESS ROADS*'
Road
Lanes
Location
1981
1985 1990
1995
2000
Skyway-
2
North of intersection
I'
with Coutolenc10,000
1,700' 14,274
17,4'I4
21,245
Skyway
2
North of N mshew Rd..
1,s00
1,521 1,856
2,26-4
2,762:
Skyway
2
North of Ponderosa
5,:.050
5,909 7,209
8,795
10,730
Skpray
2
South of Ponderosa;
5,750
6,728', 8,2.08
10,014
12,217
Clark
Z
South of intersection
-with Skyway
3,045**'3,563
4,347
5,303
6,470'
Clark,
4
Intersection with
Pearson
11,915**
5,941 17,008
20,750
25,315
Pentz-Magalia;
Highway
2'
Near intersection
�,iith Skyway
2,129**
2,491 3,039
3,708
4,523
Pentz-Magalia
Highway
2
Intersection with
DeMille Road.
2,285**
2,673 3,261
3,97S
4,8.54
Coutolenc
2
Near intersection.
with Skywau
1,000
1,170 1,427
1,741
2`,125
*Project area includes Town of Paradise fog cumulative ADT'figures, Increased
volumes based On 4 -Percent annual average growth.
**Estimated from 1977 traffic counts, 50% increase in volume over four years.
v
*Assume 85 of all txa zc m, ; pea .
volume: includes peak periods between 7a.m_ project area, includes.o- of Paradise for
volume = 1_5 x average hourly volume-); P 7
cumrslative counts. Assume annual average growth rate = 4.0 percent..
L
L
0
L
0
12000
L
D
198:1
o
S
3985
0
S
1990;
S
199
S
S
tLanes
Road
Location
3 Skyway
?2,
North. of intersec.
763'B/C
900
D
1098
D
1340 D/E
1634- DIE
with:C;utolenc
Skyway
2
North of Nimshew
100:
A
1I7
A
343
A
374
A
2l2
Road.
Sky -way
2
North of
38�
A
455
A
55
A
6.7 7'
B'
825
C
Ponderosa
Skyway
2.
South of
442
A
51.8-
A
631
B
770
BIC
940
D'
Ponderosa
Z
South of Skyway'
234.
A
274
A
334
A
408
A
499
A
Clark
Clark
4
Intersec. with.
917
A
1072
A
130 Z
A B
1596
B
1947
BIC
Pearson
Pentz--MagAli a
Highway
2
Near intersec-
1G4
192
A
234
A
285
A
348
A
with Skyway
.4
�
P entz-Magalia
Highway
2
Intersex• with
176
A
206
!A
2Sl
A
306
A
373
A
D.eMille Road
Coutolenc
2:
Near intersec,
77
A
0
A
I10
A
134
A
16's
A
withSkyway
olume occurs between
7
a --m. and
T
p.m.
average
-hourly
v
*Assume 85 of all txa zc m, ; pea .
volume: includes peak periods between 7a.m_ project area, includes.o- of Paradise for
volume = 1_5 x average hourly volume-); P 7
cumrslative counts. Assume annual average growth rate = 4.0 percent..
Road
Lams
Location
ADT
Hourly
LOS
Skye ay
2 4, rth of intersection
kith Coutolenc
59,151
4,550
E.
Skyway
'North of Nimshew: Rte?,.
7,655
589
A/B`
Skyway
North of Ponderosa
29,92-
2,301
E
Si ray
2 Sough of Ponderosa
I; 34,_099
2,623
E
Ciark
? South of -Skyway
18,093
1,391
�' D/E.
Clark
It Intersection with
Pearson
70,235
5,407
CID
Pentz-Magalia,
Highway
2 Near intersection
.with Skyway
12,526
964
D
P'entz-Magal is
Highway
z Intersection with
DeMille Road
13,222
1,0117
D
Coutolenc
2 iNear intersection
w%+h Skyway
5,915
455
A.
*Based on estimated portion of 117,873 ADT in 1980 for the entire project
area_, including the To, -,t of Paradise.
Traffic
Impact 3: Under an annual average growth rate of four
percent, average hourly traffic (AHT) volumes on the
Skyway north of the intersection with Coutolenc Road de
cline one-half level of service (LOS) by 1985 from 8/C
(Stable Plow) to D (Approaching Unstable Flow), By the
year 1.995, LOS has dropped to D/E (Approaching/Unstable
Flow), which is normally art ur:acceptable traffic condition.
The AHT on Skyway north of Ponderosa declines one LOS to
8 in 1995, and to C it! 2000. AIAT on Skyway south of
Ponderosa decrease's from a LOS of A to B In 1990; NC in
1995; and D in 2000: The LOS on Clark at the intersection
with Pearson also steadily drops, from A in 1985, to B/C
I
n 2000:
teriorates toB on Sk"tva north of the i, the LOS dem
Impact 4: After maximum potential buildou
---�- y y intersection with.
Coutolenc, and: north and South of Ponderosa. On Clark
south of Skyway LOS drops to D/L, and to C/D at the inter-
sectaon with Pea'tson. The LOS decliuLs to D at both check-
points on the Peutz4lagalia 1•1ighway. Only on Skyway n rth
of Nimshew Road does the LOS remain superior at A/B, and.
on Coutolenc near the intersection with Skyway at A.
The above traffic volume estimates 1. should be considered
conservative, since many of these roads Have sharp curves,
reducing negotiating speeds and sight distance. Moreover,
the roads may be narrower in some sections than the average
q in 1.
bs 10 and 11:
Usein calculnAverti
age hourly a volumesemaySactually�produce ae'worse IROS rating
than determined above
Mitigations! The follnwIng suggested mitigations are only
partial solutions to the adverse traffic impacts that will
potentially occur from adoption of the propo.tod project,
The County and Town of hatadiso should forma joint planning
committee to coordinate the .formulation of a omprehenS vF.
c;, rculat.ion plan laot+ the project area and incorporated areas
surrounding major roads. Priority should be assigned to
.+ thenU�feraItidneandntiitltetevonteoffaenatural caXit routes from:
`9 Y
Upper �7 ilamity such as
the outbreak of a massive forest fare. The formula ion of
a joint circulation plan should strongly consider a variety
of monies of travol it the paradise and Upper Ridp areas.
I3icycle y pedostr) aii amt,d erluestt tan paths would okou7`age,
'persons to take advantage of nc�n��veliicular travel over short
(Ii.stallcog in a scenic onv ronliteri'!. Separate lanes fur
b. wyola.sts and moped. types or. motorltdJ bicycles would
51
benefit users or these modes of travel, Use of smaller
types or, ,�,nss transit vehicles is also desirable in a
area popji.lated with a large proportion of elderly residents.
The development of graphic warning signs, and correspond-
ing reduction of commercial road signs along the aright -of-
way would help to increase traffic safety, Road widening
and use of single direction roads, where appropr'ia.te, would
facilitate traffic ;flows and improve safety margins.
Collection of developer fees for improvement of existing
county/town roads, including signali.zation, impacted by
those subdivisions is recommended.
Acoustic'
The regular intrusion of disruptive noise levels into living,
work and recreational areas significantly c.etracts from the
desirability r;f that area, and may, in certain instances,
demonstrably Contribute to the deterioration of an i-idividual's
health, Moreover, real property values are also adversely
affocted by the prospnce of excessive, objectionable noise
levels. finally, Wildlifo are discouraged ,from using a
habitat when persistent high urban noise levels are present,
Impact s 'I }he projected increase in traffic Volumes off--
roave irje (OI�V) use) d"olestic pet population, wood cutting
and con!;'Lruction activities will result in more fl,equent
violatiOns of CNrL standards.* Primary sources Of exces :ve
noise levels are: roads with moderate to heavy traffic 41
0P -Vs without mufflers, or ORVs equippod with inadequate
mufflers; barking dogs; poorly muffled chain sates and con=
struction eoui,pment
Met ti dti_ons; Require builders to observe recommended, set-
backs__-'i—F-t—t}lt�-e bnstruetioh of new residential dwolli.ngs;"*
establish a. Count.), licensing ,Ind inspection program for
URVs; restrict the hours of opirl 1.on of loud power equipment
to minimize the period o� unaccopebble noise intrusion; and
Strictly enforce nuisance ordinahers. ')'lie Coup's* slioula also
consider the incorporation of designated use ar:a.s of OkV's
(including Winter, non -wheel vehicles) into a rtcteati6hal
e1e111ent in the General flan, supported by an y5ptopriat-e
ordinance,
*CNSI, staltddtds titre, for outdoor areas, hdn 6) 111, and for
interior splices, Ldn 45 dB,
**In order. to expose recoptot°s to noise leve i; , ; , ,tt51 dt) the
'iJoiso 131ement in the County .60ndral Plnh rotwt, % a 200 .ft,ot
setback f-vom high-spoGel reads (>45 m,p,h, i s)", t,00 feet from
low-speecl (-t35 m: p. h.) l tsads ,
52
Schools
Im act 6: According to enro"lment figures obtained from
t e Paradise Unifiod School District, public schools in
the project area are near or exceed student capacity levels
for primary and secondary grades (see Table 94. Future
buildout - even at lower growth rates - will only ex-
acerbate this problem.
Mitigations: Through County ordinance) collect developer
fees or land dedication toward .future expansion of school.
facilities (site and structures), based on a per dwelling
assessment of now residences, assign new students to schools
having the .,Yrgest reserve capacities; utilize split sessions
over a longer school day through County ordinance, permit
parents to implement an in -lieu, accredited home curriculum
program; consider the dedication Countyowned. lana for
school sites.
Arehaeoloq
Impact 7; Implementation of the proposed project would
threaten to disturb knov,, lnd potential: archaeological sites
in the Upper Ridge ftr.ea, i+istoric and pre -historic sites
may be intentionally, or inadvertentll, disturbed,, thereby..,
confounding or destroying evidence rat the site.
Mi�t.gations: in suspected or known areas where archaeological
sites may or do exist, a qualified professional archaeologist
should su` ty the land before any improvements to the land
are initiated. Recommended mitigation measuxes should be
implemented, including„ but not 111 31. to, photographing ,and
describing site deposits; and arranging;, if feasible, for
setbacks from the site.
erosion and Sedimentation
lm act B Grading; oxcavation, soil disruption, and accom-
panyxng erosion, as well as potential sedimentation o{ drainage
courses and streams may be substantirl especially on ..t
cumulative basis, it maximum proposed general plan densities
are achirvod. Within the proposed LDtt and Ate land use
;ate ories (total 7800 ' cros, 15,364 residences) s this is
pdMkularly potential
Although the predominant gentlo terrain on the ridgelands
typically oxhi,bits only, slight erosion hazard, maximum build-
out will require co'nsidorabl.e vogotation removal and Soil.
53
.7
x
disturbance for substantial numbers of driveways and
homesites.. An estimate of this cumulative .affect from
the additional + 1.3,800 homesites under maximum allc:wable
densities is: + 7000 total acres of '�-acre hbmesito
development (new parcels plus development of existing
parcels). Additionally, the 211 acres of "Commerciale
designation will require considerable clearing and grading
for development of buildings and parking areas.,
Considering the high normal rate of rainfall (6n-70 inches
annually), erosion could become a problem on this i:idge
where road cuts are made and large areas are cleared:
Where terrain
becomes steeper on the ridge (15-20+t slopes);
such as
lands ear drainages and ravines and along canyon rim- �
, eiton potential is of particular concern, l
The steep canyon slopes are highly susceptible to seve7°e
erosion if the slopes are disturbed. However, the pro-,
posed 'Timber Mountain", "Crazing -Open Land", and "Public"
general plan categories for these steeper areas would pro- V'
vide considerable protection. The proposed and existing
Tri=20, TM -40, TP -1.60, and RRC zoning districts, if maintained
in such areas, also affords protection. Additional road'
conybmesite o
pmeht nlands sinceai-expected minimal h
ccesscapaili.ty is Very restricted.,.,
Specific location's in the General Plan amendment Warrant
particular +concern regarding potential erosion (based on
maximum allowai'le General. Plan densities),
1. Paradise Blu f`s subdivision
(proposed kennedy Tentative.
Subli.vision Map AP N 51»03-10, 134' acres) . This
project site is located on moderate sloping canyon rim
terrdin (10-20t slopes typically) immediately south of
South Park Drive on the periphery of Paradise Pines,
Low Density Residential development, as proposed, will
require considerable soil disruption, imposing potential
erosion impacts from road, driveway, and hrmesi,te deo
ve.lopment (80 parcels, + VI mikes of access roads),
Little -}utte Creek i,s 1peated immediately downslope,.
Several locations prbposecl for Agricultural -Residential
designation warranting concern include:
2. Jordan Hill Toad 4 Whiskoy Plat area, east of the
> e.z 4her River (,+ 160 aeres of steep terrain) . At
tliis locatirsin, UoVelopment on numerous small parcels
wa the 28-50t slopes rarsuld create colasiderable erosion
wid stream sedimontati.on (particularly the West "Branch
54 A
of the Feather River, located immediately downslope).
Maintenance of the existing 'TM -20 zoning would reduce
this potential.
3, Magalia ReserVoir watershed lands immvdiately east and`
west of the reservoir. Maximum development could cause
sodiment contamination of this domestic water supply.
Existing TM -10 zoning ('and TNI -5 on a small portion), it
maintained, Mould reduce this impact potential.
4, The Paradise Reservoir watershed lands immediately north
qnd northwest of the lake (300+acres). This domestic
water supply could ultimately be subjected to contamina-
tion from increased erosion. The moderately gentle
terrain and maintenance of the existing TM -20 zoning
reduce this impact potential.
S. DeSabl;a area west of the Skyway and Understock Road;
Portions of this large 200+ acro area, are located on
moderate terrain (20+t slopes) above 8utto Creak canyon.
Maintenance of the existing TNI -2Q zoning; could reduce
this concern.
G, West of the Skyway opposite Woodward an(!, Potty Roads,
This + 60 acme area contains moderately :otclep terrain
within Middle Butte Creek canyon (the creek traverses
the site) . Maximum development in this arO would cause
adverse sedimentation impacts on, the creek from increased
hillside erosion. The existing A1141E1-3 zoning, if main-
twined; helps; reduce t -,is potentI0, _
, r , res. This moderate
7: Northern 1�o.,n Grade Roar;1 area 80 at:
terrain
rotects�'thehsitctible to 5urroundedsbj%n �Y:isting Tb�t-20 z�oning ;
p(y
TP -160).
8: Coutolonc ttoad northeast of Paradise ReserAroit•, 80 :acres.
Dtoderate terrain and a stream flowing directly' into the
reservoir cause erosion and sedimentation concerns at
g
this loCata.olt. Tldintenance of the existingTr1w5 reduces
this concern (as well as the surrounding 1P 110) ,
0, A, small proposod for An on the Little West Pork of
F area �
the Peather 'River', east of Coutolenc Road, This inaccessible.,,
modetatoly steep cai+you terrain is located alongside or-
the
fthe river, and if r,levol')ped as designated, would result
in river sedimentation,
r
t
J:J
10. South of Ponderosa Way, west of ,Paradise Pines,
+ 100 acres. Proposed GOL 'land use designation will
surround this isolated undeveloped i-idge on three
sides, bordered by Paradise Pines.
This canyon rim terrain is bisected, by a tributary stream of
Little Butte Creek and is located upslope from Middle Butte
Creek: Maximum development would result in severe erosion
and Butte Crook sedimentation. The proposed TM -5 zoning
will moderate this hazard.
11 Nest of Ndian Drive, southwest of, Ma;galia, + 50 acres.
Maximum development of this steeper terrain igould result j
in sedimentation damage to Little Butte Creek. The pro- i
posed TNI -2 zoning for the majority of this site would
not adequately protect this canyon landscape.
Proposed zoning (including retention of many existing zoning
districts) for project area ridgelands, as well as for canyon
lands; will provide protection from erosion and, sedimentation
impacts. Careful design and construction of site improvements,
utilizing apprn.priato engineering and environmental planning,
techniques, V4111 reduce thest development impacts. Notes
Large areas of the Upper 'gi,,ge have already been initially
developed, causing many erosion impacts to date. However, �
not all areas have been fully built out. An estimated 30%
of existing parcels have been developed with residences,
although most subdivision roads have been,completed (ie,
Paradise Pines, i it 1-lavcn Estates, which contain many un-
developed lots):
Mitigations: (Noto4. at maximum development build -out;
mitigations may not fully reduce erosion impacts to an
insignificant level.)
1 Soil surfaces exposed by congtructioa and grading
activities (particularly slopes) should be stahli.zed
by
a Revegetation (perhaps hydro -seeding) as soon
as poss:blo)p+ior to the rainy season.
b. Development of perimetor berms,
c."eservbtion of existinb vegetation wherever s
Possible.
2. Roads should bo stabilized with giravcl or pavement.
56
3.
Adequate roadside drainages and culverts should be
constructed.,
4.
Storm water runoff channels should be stabilized with
rock lining and energy-di;�sipating structures, where
necessary.
S.
Storm water energy dissipators should be placed at
outfalls of 'roadside di
G..
Development Threats to hate and/or Lndangered Plants
Impact 9F)evelopment within, the project area could y
greaten the continued existence of rare/endangered plant E.
populations (refer to page 14). Nearly the entire project
area is sensitive and potentially itpports these two plant
species siace suitable habit'1t ex;i.sts throughout+the area.
Several speci f:i,c localities are knnowto be particularly
sensitive:_
a,Nimsh:ew Ridge
b. Butte Creek canyon slopes
c. Do Sabl.a area (northern project environs above A4a alia)
Mitigatiotns
1, A botanical survey of specific development sites by a
qualified botanist should be completed prior to approval
of proposed developments: If rare/end'gngered plants
are d scoverod,,specil;ic preservation measures are
necessary, alter consultatiori with .a qualjfjied botanist
2, protective measures iitay require development setbacks
from the rare plailt areas, adoption or protective fencing,
revised site design, provisioi of a deed easement to the
California Native Plant society (or other appropriate
organization) etc., Typically, for Fri.t llar a eastwoodiae,
a 1p -foot buffet, around plant populataons is con
sideted adequate
3y apatshoULd1y oitdbetolyuphill from rare plaint
populationsdisturbed.
h, Lacation:s oii mire/Ondangered planfi.s and the sutrocandin9
,,No bevelopnicntO buffer setbacks should be indicated on
final. parcel and subdivision niaps,
5, flare plant populations should be clearly marked on the
hound so that construction activ,it.ios do not inadvertently
estray the Plants,
G: The natural vegetation ililmodiately surrounding rare plant
populations should not be reiiioved or mbdif'ied (the natural.
plant coininunity and 'shade ettVroninent is essential for the
survival, of these rare plants)
Sh
4.2 Significant.Adverse Tmoacts that Cannot be Avoided if
Loss of Vegetation Lind Woodland. The construction of access
rotM drIv6ways, and numarous lj-acro homes tes Can estimated
15,900 under maximum devolopmett potential) would result in
the i°emeval 0'1* disruption o^ substantial amounts of natural
vegetation:
Cumulative loss of trees and ivood',and habitat on the ridge
Will be considerable if area growth is sustained. The Town
of P
aradi_se land area has already been completely mod :fiiO,
developed With suburban uses, eve? 'though some forest chavacter
has been retained. This cumulative loss of woodland and open
Land could toted 8000 acres (40% of the project area) This
occurrence could almost complo'tely modify the ridge's natural
forested character, although considerable portions have already
been alt:erecl Paradise Pines devolopment of 4200* lots, many
of which are yet to be developed with residences i.e, many
troes have yet to be romoved)
rartial Dttigatons
1 . Maintain suitable l arge-parcel zoning where enVirony
mental limitations exist, rather than allowing moximun
densities under proposed General Plan land use categories,
2. Overstory trees should be preserved, except where actual
physcial construction is roquirod.
Loss of Wildlife and Habitat. Although most; areas of the
aro r'se Edge leo longer provide important, key wildlife habitat
(except in the northern project area, as well as on randeveloped
canyon lands), wildlife is nevertheloss abundant on the •ridge.
Purthor area development androwth on the Upper Ridge Wall
continue to increase wildlife Duman opulation conflicts.
Resident wildlife populations Will decline as a result o1in-
creased urban encroachments; increased traffic hazards, in`
creased traffic and area noise, dirt bike •activity; harassment
from pets, and other disturbances.. Some animals Mill rel.ocaite
to nearby undisturbed habitat; others will die as a resulL of
direct conflicts or ;lack of AVdIlatle habitat. Prod -roaming
dogs (typical of Mural residential areas) will. increase Wild
1 lire predation. and other distutbahces as densities increase.
Under tna-ximum develnpmoiit, wildlife habitat In the De 5abla
area and in the Jordan Hill/Whiskey Plat area east of the
Feather River will be sevevely raduced on those lands,p"roposed
Pot Agricultural Rbisidont al land uses densities
5,0
Allowable),, A letter :from the California Depd'rtmoint of
Fish and Game (Appendix 5) underscores this potential im-
pact. Maintenance of existing TM-2Q zoning would protect
this resource. 1Vth increased devolo.pment in 'th.-ise localities,
migratory clear populations (whish favor ridgelands for
migratory corridors) will continue to decline. The migratory
deer herds which once frenuenced the Paradise Ridge will be
deflected further north away from the project area.. However,
the 'more .inaccessible locations (outlying ridgel.ands and
canyon lands) will continue to provide good habl.tat.
Siltation increases into area creeks and canyon streams is '.
not probable if the proposed protective land use de„ignations
and zonings are established and maintained in those. areas.
However, any siltation increases would have an adverse impact I
OrovJ110, locatod just loutside n area tVtherprojectatocourse8�areainc�ud )utthinghe
or the
Fo Cher River,
Partal Mitigations that could help reduce so:e impacts Includo;i
1, establish and maintain appropriate large lot zoning �
(a” proposed)
2, Modify the proposal in the De Sabla area (currently
proposed for Agricultural-Residential,) to permit only
large parcels (20-acTo minimum),
3. Restrict vegetation removµl, particularly riparian
nabitat along creeks, Preserve vegotation and forest
areas who.i+icr possible.
d. Provide (require) development setbacks from stxxeams,
i
5. The undevelopable canyon slopes and other more isolated y
areas should be managed to increase their carrying
capacity .for various g; ilio and non gamo 'Wildlife spocies
to provide additional habitat .for displaced wi lrllit-e.
6 reneing should be tostricted', Perimeter fencing should
be limited to thrao or Cour strands of wire allowing
Prod door movement to occur. Barrier fencing should not
o
be used except to enclose iiilModiate yards 0t garden ureas.
7, trosion control measures should be implemented (refer to
the grosiun impacts section).
8. ls#:abiish mid maintain 70-acro minimum parcel site zoning
'on a larger portion of the arca. (40-acre minimum iiikey
winter range),, including"Rosouxce Conservation" and
"Habitat Consorvaton" zoning.
60` � .
uako
and
se'olo %c l`I:txapos • I?hazard o C u tknownymagnitudeiltonfuturena
s to :.ng jv l pose a
residents and propertYo partic%Iarly at the proposed maximum
densities.
ilioproject area lies nctirl the northern extension of the
ootltil s Inuit 5,stem. Studir:s of this fault system :indicate
that: the maXinrum crodible earthquake to be expected is one
jith a magnitude of 6.5 on the Richter scale.
In Bute County, ijt,.eits:ity to be expected ,from an earth
nua'ke is VIII, with some local va11
riations of VII to TX on
i
the r'Ijod!:Eied Mercalli scale. 'rhe intensity, as measured on
this scale, is an expression of the damage clone to structures
du
i°ing an t'lrtltnuake. part of the scale is paraphrased below:
VII llnrein.rorced buildings with good workmanS.11-.p
and mortar sLuf.fer cracking; weak chimneys break;
some plastitr .falls,
VIII Damage to, and some partial collapse of, well-
built but unrei.nforced buildings; some damage
to reinforced buildings; stucco falls; chimneys
and elevated tanks twist and fall,
IX heavy damage to, and some complete collapse Of
unrcinforced buildings,,) serious damage to re�-
in.forcecl buildings; gener i. damago t foiindatioris
structural damage t►iay occur and is described in tlitr �`,i::0 fiLed
Marcalli scale, (expressed. in term's of various k!Ads of buildings,
and Tolated structuros, but does not include effects on mobile
homes) .
Mobile homes are typically supported by co'crete piers;
cinder blocks, wood cribbing or stool jacks and. Are not
generally tied to the supports or otherwise braced Or ;tied
to the. ground.: Mobile homes, under such circumstances, are.
p M,
not earth uai.c. rtrsisttLn't and are potentially unstable..
Land Use. 8everdl thousand :teres of open spate, primarily
COnS ting Of forests and gr dzing laud, would be 'converted
to urban uses, creating potentiaf rural urban land Litt conflicts,
Acoustics, 'Tilt overall quality Of the acoustical wnbience
tvrttt],c ecllne: This is susceptible Oii'iy� to partial.
mitigation (see sOctlon 4,1)
Public.Tlealth. Thenrcvaleheo of tree hole mostluitoes (Aedes
s:Le�'—ri- rr s .s ;�wl ich ::reds dog papulat ons with hori itworii posts
serious risk to domestic pets: An increase in the ahcidoncO
of St. Lou,is bncephtil. Ii. tis, a disease which is particuloly
sovore; oh the elderly, would be expoctect,
p 61
6
Circulation. Levels of service on various roads would
Teclneincreasing traffic congestion and travel time.
Trafklc hazards would also ince
Fire protection. The natural firm Hazard in the project
area is rated illigh to Extreme. A large natural fire in
the area Would exceed the capabilities of local fire
suppression resources The limited number of emergency
exit routes from the Upper Ridge poses a serious threat
to the population residing there,
The Butte County F're Department anticipates that resi-
dential deyelopmr,e of the Upper 'tidge will potentially
increase the numuer of strutturd.,, fires and number of
medical aid calls. Other Lire hazards created by lot
clearing, debris burning anti equipment use will also
increase the demand for emergency rite service. Since
emergency reserves in the community water supply for
Upper Ridge are limiteei or non-existent, this development
is considered a significant, unavoidable impact.
r
4.3 Adverse Impacts Not Likely to be Significant or Having �
Only m to Significance
Airja i't : Mobile Source Emissions
Introduction. The analysis of air
Y quality impacts in this
report is baserd upon data derived :from a variety of local
and stat+. government sources. Three principal emissions from
mobile sources (vehicles) were analyzed;. These include:
total organic gases (TOG), carbon monoxide (CO) and oxides
of nitrogen (NOx)
Other mobile emissions Such as sulfur dioxide (802) and
lead (P8.) are ;froquontly not available in standard emissions
reports, and have therefore boon omitted from the present
d'StUssion. Por the same relaon, dat, on suspended particu,
laths have: not beoi,, included here.
Methndolo&)�, This analysis follows the methudology set
fort}in California Air Resources hoard RO, Ort, "Proceduros c
and,tu8is °rot' ristimatitig on road ML-tor Vehicle Pm ssioris''
(1.980) . The vehicle miles travelod (WIT) approach is used
to determine total mobile source emissions Which cot)ld to C
suit from Pro joet impletnontation, Pdttt;r s involved 'in this
api�roacii ;include total. projoct»generated vehicle inile;i
tiaveled (ADWIT) and a -.omPosi'te emission factor (rEP:, which
p b mix of the area,, )Results
is re re5entative of the vehicular
are in the tot•m o.f avora >e daily omissions for Too, Co and
NOx,
` Ofdl vehicle miles traveled (AMIT) is based uprt ti:rt
esti.niatod number or average daily trips (ADT) got-Lorate►i
for ouch land use category and average trap length (&L) ,
62
The estimate for the average trip length in the Paradise
urban area is 3.5 miles. The average number of daily
trips per household amounts to 9.
An est .matet,11 13.0.97 dwelling units now exist within the
project siti3,* �,pproximateljY 61,1,1.9 dwelling; units exist
in the County. Overall population and housing browth
es'cimates are depicted in Tables 3 and 4. If the ,pro-
jetted high annual growth rate of four percent is applied
L
o the project site, then 23,063 dwelling units twuld be
on the ground by 199x.'**
TABU: 15
-i.
COMPOSin EmisSiON FACTORS
(Grams/hil.e) ";
_ s
1980 198,0 1990 1995
(I
TOG 4.74 2.84 2:19 1:99
CO 38.0 26.21. 20.65 17.81 ;II
NOx
4.3 3.46 2.79 2.69
i.
SOt?kCE California Air Resources Board
t
i
The theoyetical. maximum number of D/Us that could �iotentiallY
be const+,acted under the proposed project equal 7;;;496.***
This c ro i rcted uncle rth � s ba ed on existing land Use categoties
�or the I'u1v>i oL T�arad.se and the roposed land use plan 'dor
county areas within the projeet site.
*Project ,site ih�.ludes Upperlodge and paradise for air quality,
Ci3Fs are riot currently vailallo for years diter 1995:
analysts.
***md thoo,roticai holding capacity rot the project area is based
ori Maximum allowable densities for knit; Mott, LDR and A-it
residrrntial eategoriesi Bdc.ause roadsi sidewalks and 'other
setback 't`egdirements redt; o ac foage aVa'P.able for residential
structures j the average nurlRbor I7 Us per acre wil detuall.y be
,�
less than theoretical 11.4Ximun19.
f 6
{
tittt
For each dwelling tma.t, the ADADTJ t) (eltip lied by A'I'L L
s
(,3 , Z:Q) yields a WIT of 27 .50 miles per r sidence per day.
This VNIT multiplied by the total number of dwellings in
the project site (minus the vacancy rate) yields overall
V,P' (AIIVMT) The ADVNIT, multiplied by individual CBF i.
,,clues shown in Table 15, determines the amount of emissions
produced by residential development in a given year,
Pto'ectedmTab?�slb�r17�e18,9and20,�
site County' are
depicted ins
a
TABLE lb
EXHAUST EMISSIWNS IN 1980
(Yins/Day)
TABLE 17
EXHAUST EMISSIONS IN 1985 �
(`Pons/Day);
r;s, utrte a v, can, ratc Hyl; 6, ,%_for thr projeet arba. Number of
D/Us and ADWIT reflects all annual average row;'h rate of Aub percent:',
AAA VMT based oil Air Doli, tion Control bistAct, caltolations include
transient void ales paAgln$ through. Butte Coutity�
6
A�
`u
TABLE 17
EXHAUST EMISSIONS IN 1985 �
(`Pons/Day);
r;s, utrte a v, can, ratc Hyl; 6, ,%_for thr projeet arba. Number of
D/Us and ADWIT reflects all annual average row;'h rate of Aub percent:',
AAA VMT based oil Air Doli, tion Control bistAct, caltolations include
transient void ales paAgln$ through. Butte Coutity�
6
CES
Project
Ar.cn
Count) `
County
TOG
1.16
8,45
13,67
Co
1.0.90
79.67
13.68
NOX
1.47
10.76
M C 8
AnVMT
478,661
3r49�J,7S3
13.68
*ADVMT based, on Air Pollution C.3ntro'l Oistvict cal.culdtions
includ.c transient vo�� c1e passing' divough Butte Oourity,
6
i-'
*ADVMT based, on Air Pollution C.3ntro'l Oistvict cal.culdtions
includ.c transient vo�� c1e passing' divough Butte Oourity,
6
Y
lCHps based on annual avoiage.rate df decline for 15 -year period,
1980 - 19.95:
2Based on maxiinum potehtial buildout ':i'B 77,496 'D/Us'., vacaney rate
equals 6.4$ full buildout by 2025
3Assume County AMIT = 6500q,405 in the year 2000. AMIT will.
Lnc-toa8o by an annual avorage rate of 1.321 between 2,000 and 2025,
to 8,:28,372
1
}
66
.f
Vehicular amissions (TOO and CO) shoav a slight decline
in the project area by IM from 1580 levels, though NO,.
appears to increase marginally (trotr 1.60 to 1..76 tons
par clay) Although CO and NOx om:iss: nns exhibit substantial
Scroases over 1980 levels, tho i r ratio to overall County
levels incronso by less than throe percent (from 12.57% to
15.123,).
l
8inco
buildout would net occult- .for several. decades,
a on, .levels Beyond the year 2000 are
�a vehicle c�ntass;i.
highly speculative. Technological iianovation in power
plants—and fuel sources and use of alternative modes of
travel may actually decrease vehicle emissions boloav 1080
lovels : Overall, mobilo omissions that would occur from
adoption of the proposed project ate not considered. serious:
StaSOMY Emissions. Since there are no major industries
n operat a on �n t� i5i o.j ec t atsoa , and none planned in the
y proposed General. Plat rovision, no significant emission im-
pacts are expected from stationary sources Most stationary
emissions tv:►.11 contatatae
p� to be. produced by small scale com=
merc.ial operations, at.ions, tvoodburning stoves in iesid,Qntial clavell_iugs,
construction operations, the burning of natural fuels 'whop
x land clearing occurs and when loaves ol, slash are: inci.norated
by individual resid.ents.
The folloaving; , tnv:ironmontal eoncorns have only sa limited
adverse e:Clect on the ea vironp eal or no adverse impact at
all,
Vl.00d'iap. Iluc to se.11 types that provide modt,rato% to 'excellent
5"nage in predominantly rolling ]fill topogrnphy, and the
pratil:e of soveral. 'natural drainage and s;.roiana channel.s, ne.
substantial ponding is expected to occur front storm runoff.
The Butte County Pub'li.c. Norks Ucpnrtmont has verified: that no
significant storm drainage problems have been reported. in the
project area, WAnse rains .for long durations would, of
Ycouy so) produce spot ponding and honvy runoff over impervious
Su Ates, These impacts would not noviiiall.yh cause majot damage
to structures and facilities, ;.and tne condition would
temporurily OUSE
Acoustics. An increase in certain residential and commercial
► t a EM in the project area would :tsitrwinbly 1.%iso general
ambient noise lovols. fitertase noiso lovols ,front dense soreta;"
are not expected to adversely impact recaptc7rs� Tho hdn or?
60 dh (exterior) and 48 dal (:interior) would not ho sdijo,asly
violated,
67
Visual. Retention of ''large portions of the project site
in`'l'aler hQuntain, public and Grazing and Open Land land`.
use categories would maintain much of the visual quality
in th& area, furthermore, much of the proposed development
will occur under the Agricultural. -Res idential dcs%gnation,
at very low densities (see 'fable 2) .
Land Use. While some incompatibilities among dif3erent
an uses are unavoidable, the proposed project would mini -
mite certain con,fiicts. Open areas adjoin low to very low
de-lsity residential uses, and very ii.ttle (less than 1,'5
percent) of the project site is proposed for commercial
development. Planned commercial areas are primarily confined
to the Skyway, and no industrial land uses have been pro-
posed,
Ener Use, Most buildout in the Upper Ridge area would tie
located to eight miles from retail shopping stores i1i
Paradi
The romaining habitat value of the area will be :furthor
reduced as area growth continues, Cumulative impacts of
delvelopment and increased wil.dli.l,o/human popular ion co-_.-
flicts will rause additional tvildl .+.fe habitat . oss.
The northern aroai of t}te project (Do Sabra environ ) re
tains some good habitat value, Likewise, the canyon areas
are largely undisturbed, v:ith suitable liab,Ltat quality
(although the migratory meteor- populations prefer ridgelands)
Almost the entire canyon torrain andlarge areas of the
northern ridge aj•oa etre proposed .for TNI, GOL," or Public #
land use categorl, s (requiring largo parcels) . Such land
use designations will provide habitat protection of these I
areas. Also, rnan>r of the proposed A11lan s have existing
largo -parcel zoning, or erre proposed, for such zoning (TM -20,
TAI -40, '1TP-160),
i
NoWt--ver, two major areas of ncer i from a habitat perspective,
proposed .for All designation wnich would permit small parcel
land use, lncltide
' 1. The be Saula area, north or- be Sabla Reservoir:
2. The Joz'dan dill. » Whiskey Flat area in the Prather
�. River canyon,
Appendix S contains a lotter front the Cal ,!forma llopartment
o Pish and Came oxpTessiitg, th is concern . Maintenance of
the existing TAI -'l0 zoning would rccluce this impact.
Loss of Potential Timber sands. Most of Che Paradise Ridge
it as sun.ta Flo cnvivoli tier val conditions for the production of
commercial:. titnbor (i;ood soil,, ter rhi.rt, and climatic conditions)
The proposal will impose restrit•ti,ons on the majority of
project l,atlds Cor comw -vial timbor production. however,
most Of 'tile trre4's U-mbor production value has already been
severely reduced from exi,stingrosi.tlentiai dovelopmont or
numerous parcol cl.ivi.sions
EXPOsu.�re to N,ttttral Hazards. Sbme rosidents and, ptoptrty
would be eXposeto r or htizavds :from landslides) ex-
6pansive soil bo vmd.or, subsidence, or om-th rimoven►ont, Land-
slide or otter Mass movement hazards exist on the steeper
slopes, Those natural Conott hazards could be inereasod i:f
soil stability is reduced �y grading Oh slopes and construction
a4ti,vity, Cofirovilonce to local and state buil.d;ing cocks,
careful site dosi,l;,`t an cnrrstr, tr:tion, anal i.mplom.entation o
proper oro:yion tw0114rol. tochniquos duellig construction will
roduc:e those hazards.
69
Threats to Rare/'Endangered I Wildlife. The project area is
not identiTied as important habita:E for known rare or en-
dangered wildlife species. However, the area is adjacent
to Lake Oroville, important bald eagle winter habitat.
. Project lands in this noighborhood.are proposed for pro-
tective land use designations and zoning districts (40acre
minimum parcels), reducing project impacts.
4.4 Cumulative impacts. The following site spec, is impacts;
discus7—cd—17n-earlier sections, are also considered cumulative
in nature. They include air quality (Section 4i3)) hydtologv
(Sections 4.1 and 4.3)i acoustics '(Sections 4.1 and 4.3),
circulation (Section 4.1), education (Section 4.1), erosion
(Section 4.1) and vegetation/habitat (Section 4.2).- Increase(.;
in demand for public services and associated costs would
cumulatively impact the Sherifffs Department, health care
provision, utility extensions, and road wtintenance. Those
.0111t I'lly signii`icant,. db�
pondi,bg upon population growth, setvicd standards and
planned expansion of services in IL -he project area.
4.5 Growth Inducement. Since most growth in the project ares
will occur as hou8itigdevelopment, residential buildout is,
expected to induce Guly a modest increase in the retail
serv,,co sector, primarily located ;hong the Skyway:., Rugged
moun,wainotio, torrttin and a limited amount of space4 for suitable
building sites will futther restrict growth in the are-ai
5.0
Conversion. of Natural Areas to Urban Uses. TIIO,Prbposed
protect i4o5ld do 8 ignate sovF'M MU—ga acres in the Upper
Ridge area as suitable Ebr residential derolopmont at lower
densities - . (Only 35 ftCrCS are proposed f6r MDR housing, and
none for I-1011, categories,). Commercial.IRrid uses would occupy
less than 1.8 purcent of the total pro,,,bc,t acreagek The
project offers the palpablo a4vantago., however, of rogd-eving
more than 110000 acres (5tq percent) of the project laiid in
Timber Mountalh, Grazing and Open Land and Public laml uses,
6.0 ANY SIGNIFICANT tRAt,V8ASII!LF, PiNVIRONNIIIINTAL CHAN6118 M-II014
I M I'LL MVINT141 IJ
.Acs, etics 6 'Pile cobVdi'sloh or natural environments to urban
ar I
uses""' 1, oly reversed, Although substantial landscaping
may , mitigate this orrcct to some oxtoftt,i the substitution of,
exotic plants and tPOOS rOr native species is not considered
equivalent roplacoMentl
70
1t�a1'C YLF1t1tS. i'1'oa(!Ct t)U1,1cloUr Iliny ciG�troy rare/ oil
#
j)lc`llil: 1)o()li .rlti.otis; 1Vll,i,C)l a,'0 highly
Susceptible to Cd,is-
turbance, eXtIrPation (1,'0111 the rag,i.on is a r'I,s1 Silica '
many Marc plants Potentially provide useful in 'biological
research, or have practical application in the development
of collskillicr collimoClitl,es, .loss of a platlt species wolt,ltl
forever
remove that potential.
l,eol Unique geologic fol'matiolls, formed over a period
o`—centuries, may ))e disIturbed, or in some instances destroyed
by 'surrounding urban d,evolopmentr_.
1krc1la0ol2,v,y, Dist'tarbold or destroyed archaeological sites
xesult 7,n the permanent loss of historic and prolli stork
information. Although Rnown
and newly discovered, sites may
be protected for :study, other sites may be inadvertently
disturbed or remo -,od.
i
7.4
ALTERNAT'TV13,S 'CO `l`Idls PROPOOL-D PROJI,G`I'
7.1
1
No 'Pro•iect. The No Project altotnati ie would leave the
e sting General Plan dog ��',. �ar,,I:a and zones for the t1pper y
Ridge arr.i int•rlct-, .Y,1 j.,
0110.un Would result in far greater
Urbaii dor. Y' ie1'tli`o41i1 t a,n the prof e t site; and increa he
�,. s 7
the a.i.,�(.
and riensities of fihe future population in the area , 1 1 i
-
i
iU;lsctluence wou, u resu'l:t i,.li a Sul?'.,q �r"ly11rre2Se ill the
number of significant i �v
u �t i t. , .1, u''i ` i0 the ell lliron'ntent,
a probable incl-v,i.;..• in thL�ir severity, Moreover, many
, e ,lT,ilatGr' l o 7U u:',C s in the curreilt General, Pian do not
r a,'.i$tically add -toss I mit'ations topography,
of circulation
netWOrk5,, or a.vizi,lability o:[ adequate 1)ublic sorvices, And
fi,ntli,ly, exi.5t,l_ng land uses in ti'ie pro ject ;site do not
sufficiently reflect Gerlera`L Pla,l designations, not d;)
zones
.iatisractorily represent those land 1.151rs.
7.2
keduce Land Use li ten j. A greater amount of open spaCe
could d)e ine l:pol tud into ttie proposal., thus
preserving more
of the natural ellvironnioiit. This goal must be Neighed against
existing conditions, whero largo
numbers o
g parcels have
already been developed ,i:tl the project site; that development
should be recugilized. Til ,° rder to preserve natural featiire.s
and the area's rtiral mouittaifl character where possible; the
proposed 6e11e170. Plan amendment sub8tantiall+r reducee5 resi-
dential densities Contained in
MIO CUrrent Land Usts tlemcht,,
Whilo decreasing the ainount or- laiid assigned to COI;, '1'M and
Public categories by 20 perce,rit. The 11trado_o;f,t allows
670 of d
projecf k,rowt1i to be directed into lin ,Agricul:tural-.
ltesicdent ttl class) ficritiori, tvitll t,lost of the renidindor
pro-
posed for a L.DR category. 'flue tremendous increase ill Ault
aci'etigo contained ill thero osed
p p project represents an
acceptable strategy .for tnailltairi:in:g 1.
go 1)QrtianS of existing
vegetation intact ill residential areas,
lnci`case 7t o l F1 jaceThrCJ0 1 ftosidcntial. Cluste'1'lll c 111E
i�latinec
Area G ,,lister (1)µc,J zono 1?t~rnlits tht
co r, c lustoi- 11oUs,4ng, Which usually 'preserves
'yrs
•xNr
y `
L