HomeMy WebLinkAboutRESOLUTIONS - 01051982 - 82/21l: ~ ...
THE BOARD C>F SUPERVISORS OF c:ONTRA COSTA COUNTY, CALIFORNIA
Adopted this Order on January 5 • 1982 , by the following vote:
AYES: Supervisors Fahden, Schroder, McPeak, Torlakson, Powers
NOES: None
ABSEI\IT: None
ABSTAIN: None
SUBJECT:
In the Matter of Establishment of Drainage)
Area 40A and lhe Institution of a Drainage)
Plan Therefor and Adoption of Drainage Fee)
Ordinance, Martinez Area. )
Project No. 61.8284 )
)
RESOLUTION NO. 82/21
(West's Wat.C.App. SS 63-12.2
and 63-12.3)
The Board of Supervisors of Contra Costa County, as the governing body
of the Contra Costa County Flood Control and Water Conservation District, RESOLVES
THAT:
On November 24, 1981, this Board adopted its Resolution No. 81/1338 proposing
to establish Contra Costa County Flood Control and Water Conservation District
Drainage Area 40A consisting of that real property described in Exhibit "A", and
institute a drainage plan therefor.
This Board has considered the proposed ordinance and the report entitled
Impervious Surface Drainage Fee Ordinance submitted to the Board by the Public
Works Department on December 22, 1981 and amended on January 5, 1982.
On January 5, 1982, pursuant to Resolution No. 81/1338, this Board held
a hearing on the question of the establishment of said Drainage P1rea, institution
of a drainage plan therefor, and the adoption of a drainage fee ordinance. At
the time and place fixed for said hearing before this Board all written and oral
objections presented concerning the proposed Drainage Area, plans, and drainage
fee ordinance were considered.
This Board finds that any valid written protests filed do not represent
more than one-half of the assessed valuation of real property contained in the
proposed Drainage Area 40A. This Board also finds that no written petition for
an election signed by at least 25% of the registered voters within proposed Drainage
Area 40A has been filed.
It appears from the affidavits of publication on file with this Board
that all notices required to be given for such hearing have been duly and regularly
given and all procedures to be followed have been followed all in accordance with
Section 11 and 12.3 of the Contra Costa County Flood Control and Water Conservation
District Act and in accordance with the provisions of Resolution No. 81/1338.
This Board has received no resolution or ordinance adopted by any affected
city requesting the exclusion of territory from proposed Drainage Area 40A.
This Board hereby CERTIFIES that the Environmental Impact Report submitted
to it by the Public Works Department as t o the environmental impact of proposed
Drainage Area 40A has been completed in compliance with the California Environmental
Quality Act, and it has reviewed and considered the information contained therein.
This Board ACKNOWLEDGES that the Drainage Plan would have certain environmental
effects and ADOPTS the findings and mitigation measures expressed in Planning
Commission Resolution No. 50/1981 which mitigate those effects in the manner indicated
and is hereby i ncluded as Exhibit "B".
This Board hereby FINDS that good cause exists for the establishment
of Drainage Area 40A and orders that Contra Costa County Flood Control and Water
Conservation District Drainage Area 40A is established, consisting of the real
property described in Exhibit "A". The revised drainage p'lan as submitted to
the Board on December 22, 1981, as shown on the map entitled "Drainage Area 40A,
Boundary Map and Drainage Plan", da t ed August 1980, proposed to be instituted
for Drainage Area 40A and on file with the Clerk of the Board of Supervisors,
Administration Building, Martinez, California, is hereby instituted.
RESOLUTION N0.82/21
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This Board hereby ENACTS Ordinance No. 82-9 establishing drainage fees
in said drainage area.
This Board hereby REQUESTS the Public Works Director to file with the
County Clerk a Notice of Determination for this project.
I ltet9by 4*tlly that tf'tft '!I~ trueandcorrectcopyof
an action taken enc: :.m:g.,·t,,; "'' the minute! of the
Board of Supervisor:. or. the date shown.
ATTESTED: -JAN S 1982
J.R. OLSSON. COUNTY CLERK
and ex officio Clerk of the Board
Sy (14& d cU /lcg,R • Deputy
Orig. Dept.: Public Works Department, Flood Control Planning
cc: Public Works Director
Flood Control
Land Development
County Administrator
County Assessor
County Treasurer-Tax Collector
County Auditor-Controller
City of Martinez
Planning Department
Building Inspection
County Counsel
County Recorder
RESOLUTION NO. 82/21
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Cu,,, RA COSTA COUNTY FLOOD CONTROL
AND
WATER CONSERVATION DISTRICT
DRAINAGE AREA 40A
EXHIBIT A
All that property situated in the County of Contra Costa, State of
California, described as follows:
All references to boundary 1 i nes, ownerships and acreages are of the
Offl_dal Records of Contra Costa County, California.
· Beginning at the most southerly corner of Lot 1 of Block 11 as said
lot and block are shown on the map of Martinez Land Company, Tract No. 2
filed September 21, 1915 in Book 14 of Maps at page 285; thence from said
point of beginning, along the southeasterly line of said Lot 1, North 54°13'
East 120 feet, more or less, to the centerline of Palm Avenue; thence, along
said centerline North 0°26 1 14" West 350 feet, more or less, to the centerline
of Pacheco Boulevard; thence, c1long said centerline of Pacheco Boulevard,
easterly 3,650 feet, more or leiss, to the northerly prolongation of the
easterly line of the parcel of land described in deed to Edward D. Trost,
et ux, recorded March 11, 1975 in Book 7450 of Official Records, at P~(:e 198;
thence, along said prolongation and easterly line, South 0°29'30" East 370 .
feet,, more or less, to the northerly right of way of the Contra Co?ta Cana 1;
thence southerly 80 feet to the northeasterly corner of the parcel of land
described in the deed to the Contra Costa County Water District recorded
September 6, 1974 in Book 7316 of Official Records at page 479; thence, along
the easterly line of said Water District parcel, South 0°29'33" West 116.76
feet to the northeast corner of Subdivision 4542 as shown on the map filed
May 2, 1975, in Book 177 of Maps at page 42; thence, along said northwesterly
line of said Subdivision 4542, west 83.28 feet, South 60°00'00" West 304.73
feet, South 30°00'00" West 269.63 feet, South 151.13 feet and South 30°00'00 "
West 200.88 feet to the northwest corner of Lot 56 as said lot is shown on
-t1 :e map of Subdivision 3174, Highland Park, filed February 26, 1964 in Book
97 of Maps at page 32; thence, along the westerly, northerly and westerly line
of said Subdivision 3174, South 339.57 feet, South 87°02' West 202.90 feet,
and South 0°29 '33" West 87 .85 feet to th e northeast corner of Lo t 28 as said
corner is shown on the map of Subdivision 4712 filed June l, 1977 in Book 197
of Maps at page 8; thence, along the northerly and westerly line of said
Subd i vision 4712, North 89°30'27" West 65.78 feet ') South 50 °30'00" We s t 125 .00
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DRAINAGE AREA 40A
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feet, North 87°30'00 11 West 222.00 feet, South 58°00'00 11 West 134.00 feet,
North 89°26'23 11 West 187.B0 feet and South 0°33'37 11 West 120.00 feet to
the southwest corner of Lot 21 of said Subdivision 4712 (197 M 8); thence,
. along the southerly and southw :esterly lines of said Lot 21, South 89°26'23". ·
-East 87.44 feet and South 54°30'00" East 80.23 feet to the westerly line of
Morello Heights Circle; thence southeasterly 87 feet, more or less, to the
northwesterly corner of Lot 45 of said Subdivision 4712 (197 M 8), thence,
along the northerly and easterly lines of said Lot 45, South 89°30'27" East
102.!51 feet and South 8°26 1 18 11 East 70.86 feet to the northeasterly corner
of Lot 44 of said Subd i vision 4712 (197 M 8), thence along the general
easterly line of Lots 44, 43, 42 and 41 of said Subdivision 4712 (197 M 8),
South 0°29'33 11 East, 190.00 feet and South 15°34'03 11 West 128.92 feet to the
most northerly corner of Lot 39 of said Subdivision 4712 (197 M 8), thence
along the northwesterly and southwesterly lines of said Lot 39, South 56°21 '23'
West 70.00 feet and South 33°38'37 11 East 110.00 feet to the northwesterly line
of More 11 o Heights Ori ve; thence southerly 59 feet, more or 1 ess t.o the most
westerly corner of Lot 6 of said Subd i vision 4712 (197 M 8), thence, along
the southwesterly line of said Lot 6 and its southeasterly prolongation,
South 33°38'37" East 232.87 feet to the southeasterly right of way line (100
feet in width) of the Aitchison, Topeka and Santa Fe Railroad; thence, along
said southeaster·ly r i ght of way line, northeasterly 300 feet, more. or less,
to thi~ northwester'iy corner of Subdiv ·ision 3801 as shown on the map filed
May 28, 1969 in Book 126 of Maps at page 29, said northwesterly corner being
the most northerly corner of the parc:el of land described in instrument to
the Alhambra UniCln High School District recorded February 11, 1958 in Book
3117 .of Official Records at page 305; th~nce, along the easterly line of ·
said High School District parcel (3117 OR 305), southerly 2,370 feet, more or
less, to the northerly line of Subdivision 5596, Village Oaks Unit 4, as
shown on the map filed October 17, 1979 in Book 231 of Maps at page 17; the nce
along the northerly, wester'ly and southwesterly lines of said Subdivision
5596 {_231 M 17), North 89°23 1 48", West 361.30 feet, South 0°36'12 11 West 137.28
feet, South 40°13'4l8" East "160.73 feet to the most northerly corner of PARCEL
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DRAINAGE AREA 40A
C as said parcel is shown on the map filed June 23, 1965 in Book 35 of
Licensed Surveyor's Maps at page 29; thence, along the northwesterly and
southwesterly lines of said PARCEL C, South 26°09'01 11 West 410.29 feet and
South 58°51 '27 11 East 359.55 feet to the most easterly corner of PARCEL Oas
shown on said map (35 LSM 29);, thence, along the southeasterly line ·of said
PARCEL D, South 28°04'00 11 West 190 feet, more or less,to the northeasterly
right of way line of Arnold Drive; thence, crossing Arnold Drive and John
Muir Parkway, southerly 357 feet, more or less, to the northeasterly corner
of the parcel of land describe:d in instrument to Lillian Held recorded
August 1, 1973 in Book 7011 of Official Records at page 771; thence, along
the easterly line of the said Held parcel (7011 OR 771), South 11°08'19 11
l4est 50. 00 feet to the northerly 1 i ne of Muir Road; thence, a 1 ong said
northerly line, westerly 450 feet, more or less, to the northerly prolonga-
tion of the easterly line of the parcel of land described in deed to the
Kaiser Foundation Hospital recorded November 1, 1978 in Book 9087 of Official
Records at page 519; thence along said prolongation and easterly line, south-
easterly line and southwesterly line and northwesterly prolongation of said
Kaiser parcels, South 0°01 °24 11 East 270.00 feet, South 42°00' West 700.00
feet and North 53°00' West 140 feet, more or less, to the easterly line of
Subdivision 4774, Pine Meadows, Unit 2, as shown on the map filed April 20,
1978 in Book 210 of Maps at page 3; thence along said easterly line South
1°01'37 11 West 583.32 feet to the southeasterly corner of said Subdivision
4774; thence, along th e southerly line of said Subdivision 4774, North 88°
16'03" Hest 20 feet, more or foss, to the northerly prolongation of the
·,west1erly line of Lot 19 as said lot is shown on the map of Muir Oaks filed
.August 5, 1913 in Book 10 of Maps at page 243; thence, along said prolonga-
tion and wester·ty lines of Lots 19 and 18 of said Muir Oaks, southerly 290
feet, more or less, to the most northerly corner of the parcel of land des-
cribt?d in deed to John E. Turner, et ux, recorded December 9, 1957 in Book
3086 of Official Records at page 426; thence, along the northeasterly line
of said parcel (3086 OH 426) South 44°46' East 326.86 feet; thence along the
northerly, easterly and southeasterly lines of said Turner parcel, South
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,·
; DRAINAGE AREA 40A (
81°00" East 25.00 feet, South 8°30 1 West 163.87 feet, southwesterly along
the arc of a tangent curve, concave to the northwest having a radius of 120
feet through a central angle of 49°00 1 00 11 , a distance of 102.63 feet and
South 57°30' West 185.50 feet to the centerline of Northridge Road as said
·road is shown cm the said map of Muir Oaks (10 M 243), said centerline of
·Northridge Road being also on the general easterly boundary of Flood Control
Zone No. 5 (Alhambra Creek Watershed) as described in Exhibit 11A11 11 In the
Matter of the Formation of Flood Control Zone No. 5 (Alhambra Creek Water-
shed)" recorded December 31, 1970 in Book 6286 of Official Records at page
295; thence, along said gemera l easterly boundary, westerly and northerly
4,140 feet, more or less, to the southwesterly corner of the parcel of land
described as PARCEL ONE in deed to the Duffel Financial and Construction Co.
recorded August 11, 1978 in Book 8964 of Official Records at page 16; thence,
along the westerly line of said PARCEL ONE and its northerly prolongation,
North 21°30 1 30 11 West 1,13t'..79 feet to an angle point in the general westerly
line of PARCEL TWO as said parcel is described to said Duffel Fin~ncial and
Construction Co. (8964 OR 16); thence, along the northwesterly line of said
PARCEL TWO (8964 OR 16), North 34°39 1 47 11 East 22.80 feet to the southerly
right of way line of John Muir Parkway; thence northeasterly 550 feet, more
or less to the intersection of the northerly right of way line of said John
Muir Parkway with the general easterly boundary of said Flood Control Zone
No. 5 (6286 OR 295);· thence, a l ong the said general easterly boundary,
westerly and northerly 1,900 feet, more or less to the southerly boundary of
PARCEL 1 as said PARCEL l is shown on the map filed March 30, 1970 in Book
12 of Parcel M,tps at page 13; thence, along said southerly line, North 88°39 1
55" West 60 feet, more or less !• to the westerly line of said PAhCEL l; thence,
-along said westerly line, North 1°13'29 11 East 478.51 feet to the southerly
line! of Lot 39 as said lot is shown on the map of Subdivision 2924, Alhambra
-Oaks Unit No. 7, filed May 2, 1963 in Book 92 of Maps at page 38; thence,
along said souther·iy line, South 88°48'18 11 East .70.00 feet, more or less
to the southeasterly corner of said Lot 39 {92 M 38), said southeasterly
corner being also on the general easterly boundary of said Flood Control Zone
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p:,,-· r.sJA, z Z¢13.#.~' --v·.. --~~~~ t .. Fs • ?'. .x. .:*'·':¥"·~-,e;.~-'it"'.' .... ~~-~::1...-tw.~--~-·'!:'~-'·*·~1::.-4._ "'tt..4f.!?.!d-*'.~: ........ L .. ,:(1111[ .l+l:4!'*.·.;;p!¥£C -~-\"'~~~·-;.?·:;,_·:-,-,_4.i,: .... ,•:re!':,~,.,.,,, ~~'-,..,
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DRAINAGE AREA 40A
1 No. 5 (9087 OR 519); thence, along said general easterly boundary northerly
2 and northeasterly 6,600 feet, more or less, to the intersection of the
3 centerline of Shell Avenue wi t h the centerline of West Shell Avenue as said
4 · str~ets are shown on the map of Martinez Land Company Tract No. 6, filed
5 _February 8, 1916 in Book 14 of Maps at page 297; thence, along the centerline
6 of Bella Vista ,!\venue formerly known as San-Carlos Avenue, North 82°48 1 East
7 · II 170 feet to the center'line intersection with Leslie Avenue, as said streets
8 !I are shown on the map of Martinez Land Company Tract No. 7 filed March 6, 1916
9 I! in Book 14 of Maps at page 299; thence, along the centerline of Leslie Avenue,
10 Ii South 7°12' East 65 feet, more or less, to the westerly prolongation of the
11 II southerly line of Lot 20 of Block 51 as said lot and block are shown on the
12 II said map of Martinez Land Company Tract No. 7 ( 14 M 299); thence, along said
13 II prolongation and southerly line, North 82°48 1 East 145.00 feet to the south-
14 II east corner of said Lot 20; thence, along the easterly lines of Lots 20 and
15 II 21 of said Block 51 (14 M 299),, North 7°12' West 61.40 feet to the most
16 II southerly corner of Lot 22 of said Block 51 (14 M 299); thence, alpng the
17 II southeasterly line of said Lot 22, North 64°37 1 30 11 East 23.68 feet to the
18 II most easterly corner of sa i d Lot 22; thence along the northeasterly line of
19 II said Lot 22 (14 M 299) and its northwesterly prolongation, North 44°05 1 West
20 119.83 feet to the said centerline of Bella Vista Avenue; thence, along the
21 said centerline of Bella Vista Avenue, northeasterly 115 feet, more or less,
22 to a point on a radial line which bears southerly 20.00 feet from the most
23 easterly corner of Lot 8 of Block 41 as said lot and block are shown on the
24 said map of Martinez Land Company (.14 l-1 299); thence northerly 20.00 feet
25 along said radial line to the said rnos.t easterly corner of Lot 8; thence,
26 ·along the northeasterly line of said Lot 8, No"'th 44 °05' West 39.95 feet to
27 ·the most westerly corner of Lot 12 of said Block 41 (14 M 299}; thence, along
28 the northwesterly line of said Lot 12 and its northeasterly prolongation,
29 North 45°55' East, 140,00 feet to the centerline of East Orange Street as
30 shown on said map (_14 M 299 ); tlhence, along said centerline, North 44°05'
31 West 145.16 feet to the centerline of Shell Avenue as shown on said map
32 (14 M 299); thence, along t he said centerline of Shell Avenue, North 45°55'
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DRAINAGE AREA 40A
East 175 feet, more or less, to the northwesterly prolongation of the south-
westerly line of Lot 1 of Block 22 as said lot and block are shown on the
map of Martinez Land Company Tract No. 4 filed October 15, 1915 in Book 14
:_ of_ ~aps at page 288; thence, a long said prolongation and southwesterly l i.ne,
i South .43°07' East 125.85 feet to the northwesterly line of Lot 3 of ~-aid
Block 22 as shown on said map (14 M 288); thence, along said northwesterly
line and its northeasterly prolongation, North 46°53' East 75.68 feet to the
centierline of Olive Street as said street is shown on said map (14 M 288);
thence, along the said centerline of Olive Street, southeasterly 71 feet to
the southwesterly prolongation of the northwesterly line of PARCEL Bas said
parcel is shown on the map filed Jancary 2, 1974 in Book 31 of Parcel Maps
at page 48; thence, along said prolongation and northwesterly line North 43°
40'00" East 128 .. 05 feet to the southwesterly line of Lot 6 of Block 21 as
shown on the said map of Martinez Land Company Tract No. 4 (14 M 288); thence,
along said southwesterly line, South 46°20' East 14.00 feet to the most
southerly corner of said Lot 6 (14 M 288); thence~ along the sout~~asterly
line of said Lot 6 and its northeasterly prolongation, North 43°40' East
137 .. 63 feet to the centerline of S-irch Street as said street is shown on
said map (14 M 288); thence, along said centerline, northwesterly 40 feet,
more or less, to the southweste,rly prolongation of the northwesterly line of
Lot 7 of Block 12 as shown on said map (.14 M 288};, thence, along said pro-
longation and neirthwesterly line and northeasterly line of said Lot 7, North
26°15'55" East 113 feet. more or less, and South LI2°25' East 40,00 feet to
the most southerly corner of Lot 15 of said Block 12 (14 M 288); thence,
~along the southeasterly line of said Lot 15, North 23°44'45" East 100.31 feet
to the southwesterly right C'f W!:lY of Martinez Avenue as said street is shown
-On sa;id map (14 M 2881; thence ,easterly 50 feet, more or le;s, to the most
southerly corner of Lot 8 of Block 11, as said lot and block are shown on
the map of Martinez land Company Tract No, 2 filed! Septemoer 21, 1915 in
Book 14 of Maps at page 285; th,.ence, along the southeasterly lines of Lots 8,
7 and 6 of said Block 11 (14 M 285], North 54°13' East 150,00 feet to the
most easterly corner of said tot 6; thence 1 along the northeasterly line of
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DRAIN AGE AREA 40A
said Lot 6 and 'its northwester ll y prolongation, North 35°47 1 West 120 .00 feet
to the centerline of Chestnut Street as said street is shown on said map
·(14 M 285); thence, along said centerline, North 34°13 1 East 150.00 feet to
the-~orthwesterly prolongation of the southwesterly line of lot l of ~said
Block 11 (14 M 285); thence, along said prolongation and southwesterly line,
South 35°47 1 East 70.00 feet to the most southerly corner of said Lot l,
the point of beginning.
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EXHIBIT B
RESOLUTICN NO. 50-1981
RESOUJrIOO OF THE PIANNIN3 COMMISSION OF THE COUNT'i OF CONTRA COSTA, STA't'E
OF CALIFORNIA, INCORPORATING FINDINGS AND RECOMMENDATIONS ON THE FINAL
EIR FOR DRAINAGE AREA 40A IN THE MARI'INEZ AREA OF CXNTRA C03TA COUNTY'.
WHERfAS, pursuant to the provisions of Government Code 65450, public
hearings were held before the County Planning Commission on August 11,
September 29, and October 27, 1981 to consider and EIR for Drainage Area
40A in the Martinez area of Contra Costa County; and
WHEREAS, all the procedures of the California Enviroranental Quality
Act and the Contra Costa County Guidelines to implement this Act have been
met" and the hereinafter listed matter was discussed fully with testimony
and documentation presented by the public and various county, local and
state agencies;
WHEREAS, the EIR was prepared in connection with the Drainage Plan
including responses to comments whic:h constitutes the Final EIR for the
project.
NOW, THEREFORE, BE I'!' RESOLVED that the County Planning Canmission
at a regularly scheduled public hearing on December 8, 1981, makes the
following findings and recanmendations on the matter;
1. The Drainage Plan with its proposed standards for implementation
will mitigate many of the impacts enunerated in the Environmental
Impact Report.
2. The Drainage Plan has left significant areas in open space ,and
is protecting the environmental resources of the area through
the design and standards of the Plan.
BE IT FURTHER RESOLVED that the County Planning Commission having
reviewed the comments submitted in response to the EIR, finds that the
environmental documents constituting the Final EIR are adequate and provide
an environmental analysis suitable for decision making on the project,
and the Planning Commission certifies to the Board c:::>f Supervisors that
it finds the EIR to be adequate and that it has been canpleted in canpliance
with State Guidelines and County processing procedure for implementing
the Cali fornia Environmental Quali. ty Act; and
BE IT FURTHER RESOLVED that the County Planning Commission concurs
with the findings of the EIR that t:he Drainage Plan would have certain
environmental effects and adopts tht~ following findings and measures which
partially mitigate those effects in the manner indicated. This impact
folJ:ows the same sequence as identified in the summary of the Draft EIR
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RESOUJTICN NO. 50-1981
except that all impacts referring to Alternative #1 have been deleted
since Alternative #2 is recamnended for implementation; and where Alternative
#1 has been used as a mitigation measure other types of mitigation are
proposed. _
Land Use: Legal, Policy and Institutional Constraints
Impact. There will be an increased burden on maintenance service
provided by ~.artinez and Contra Costa County to remove trash and debris
fran the drainage system.
Mitigation. An agreement for routine maintenance of the drainage
system will be established between Martinez and Contra Costa County.
Impact. Alternative #2 will increase the pressure to develop the
potential basin site.
Mitigation. The site could be designated a park area or, if developed,
the flood plain area upstream could include recreational provisions. This
mitigation measure is within the responsibility and jurisdiction of the
County or the City and not the Flood Control District.
Fiscal Analysis
Impact. The total revenues projected fran the proposed drainage fee
are inadequate to meet the estimated improvement costs.
Mitigation Alternatives
a. Sources of additional funding will be identified in order to
provide adequate revenues for the estimated costs.
b. The drainage fee schedule could be revised to provide adequate
revenues for the estimated costs.
c. The proposed improvement~: will be re-evaluated to determine if
there are ar,eas where costs could be reduced.
Aesthetics
Impact. Altern21tive #2 will have the significant adverse impact of
elirn:inatirg the visual benefits of a cre1~k habitat with recreational potential.
Mitigation. The flood plain upstream of the basin site could be develq,ed
as a recreational site. The development itself could be designed with
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RESOI..tJrICN NO. 50 -1981
aesthetically pleasing features. This mitigation measure is within the
responsibility and jurisdiction of the County or the City and not the Flood
Control District.
Earth: Soils, Geology and Seismic Hazards
Impact:. 'J'here is a high erosion potential of the Briones soil in
the upper reaches of the watershed.
Mitigation. On-·si te tenporary sedimentation trc1ps should be required
on all developnents in progress to reduce the erosion hazards and downstream
sedimentation. This mitigation measure is within the responsibility and
jurisdiction of the County or the City and not the Flood Control District.
Impact. There is a potential for erosion and/or slunping of tlYc prcposed
eart.hfill material into the creek/gr,eenbelt area.
Mitigation. All earth fill embankments along the creek/greenbelt
should be compacted to minimize subsidence, erosion and slumping. This
mitigation measure is with i n the responsibility and jurisdiction of the
County or t h e City and not the Flood Control District.
Water: Hydrology, Flood Hazards and lNater Quality
Impact. The increased peak d:ischarge (Alternative #2) will have a
high erosion potential along the surface channels.
Mitigation. Roc:k will be placed at points of erosive flow and . the
channel banks will be revegetated consistent with project design.
Impac t . The stream channels will require periodic maintenance and
removal of sediments in order to function effectively.
Mitigation. A regular maintenance program will be established to
remove debris and sediments from the stream channels. This mitigation
measure is within the respons i bility and jurisdiction of the County or
the City and not the Flood Control Di:strict.
Impact. Alterations or earth fill along stream channels may be subject
to extensive erosion.
Mi t igation. Al t.erations to the stream channels will be designed so
that peak water velocities will have a minimal impact on erodable surfaces.
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RESOUJ'J'ICN NO. 50-1981
Biota: Vegetation and Wildlife
Impact. Both alternatives will 1:liminate the existing riparian habitat
and the str,:am channel on the detention basin site.
Mitigation. A revegetation program at a site eitrer upstrean or downstrean
of this area should be implemented. This mitigation measure is within
the responsibility and jurisdiction of the County or the City and not the
Flood Control District.
Impact. A 30-40 foot greenbelt on either side of the creek will not
be possible due to large amounts of fill material existing adjacent to
the creek channel.
Mitigation. A 60-80 foot greenbelt should be designed on the west
side of the creek channel where existing fill material encroaches near
the channel. This mitigation measure is within the responsibility and
jurisdiction of the County or the City and not the Flood Control District.
Impact. Underground pipe placed between station 50 on Line A and
station 15 on Line E will eliminate a significant riparian habitat and
creek. ( Se1: Figure 1 ,of Engineering Report. )
Mitigation. The ,creek/greenbelt designation should be proposed between
station 50 on Line A and station 15 on Line E in order to protect the existing
riparian vegetation and creek. 'Phis mitigation neasure is within tre responsi-
bility and jurisdiction of the County or the City and not the Flood Con~rol
District. See Exhibit E.
Air: Air Quality and Noise
Impact .. _ Short-term construction impacts of dust anissions fran excavating
and transporting dry soils will contribute to degraded air quality.
Mitigation. Wat.er will be applied to dry earth surfaces as needed
to suppress dust enissions during excavation.
Impact. Short-t.erm construct jl on noise impacts may adversely affect
the surrounding residential neighborhood.
Mitigation. Construction hours :for the proposed improvenents
will be limited to 8:00 a.rn. to 5:00 p.rn. as much as possible.
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RESOUJ'T'IOO NO. 50-1981
NOW, 'I'HEREFORE, BE I'T' RESOLVED thctt the County Planning Commission
at its regular meeting held on October 27, 1981 approved and recommends
to the Board of Supervisors the approv;:ll of the Final EIR, identified in
the October 27, 1981 hearing draft.
The instruction by the Planning Canmission to prepare this resolution
was by motion of the Planning Commission on Tuesday, October 27, 1981 by
the following vote:
AYES:
NOES:
ABSTAIN:
ABSENT:
Commissioners-Nimc, Yotmg, Davis, Aiello, C,ompaglia,
Accornero, Anderson.
Commissioners-None.
Canmissioners-None.
Commissioners-None.
I, Tumald E. Anderson , Chairman of the Planning Commission of the
County of Contra Costa, State of California, hereby certify that the foregoing
was duly called and held in accordance with the law on Tuesday, December
8, 1981, and that this resolution was duly and regularly passed and adopted
by the following vote of the Canmission:
AYES:
NOES:
ABSENT:
ABS'T'ATI.~ :
Canmissioners-Compaglia, Young, Davis, Aiello, Accornero,
Nirnr :• Anderson.
Commissioners-None ..
Canmissioners-None ..
Canmissioners-None ..
~ · , Chairman of the Planning Commission of the
/ ' County of Contra Costa, State of California
AT!'EST: I . ~· /""'\_
Secr~h \>~ Plimnlng C~on .,f the
5&mty bf Contrf Costa., State of Californict
RES.DA40A.2481.tll
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