Antioch's Mitigated Negative Declaration - Sept. 2014

774 Pages·2014·30.74 MB·English

West Antioch Creek Channel Improvement Project ~
cof Doterrsination

1b D
NOTICE OF DETERMINATION

TO: Offi nf Planning and 2oseereh FROM: City of artioch CoieaMcoserhoner
400 19" Steet 200M Ste: I Deu)
‘Sscramiento, CA S544 =

ntiogh, CA 94503

SUBJECT:

ing of Notca

F Determination In eomplisnee with Section 23400 of the Publi
Resources Cade

PROJECT TITLE: ‘est Antioch Coak Channel Improvement Project

State Clearinghouse Number Contact Person
pnaea7a

Project Approval:

“The Cy of Artiach aporoves the
23, 20.4

Tolephone Number
indy Gentry [phone]

est Antioch Crock Channel improvement Project

roe
Project Location:

“The Project is fave win the northern reach of West Antioch Creek in the Cty ct Anton, Contr
Cole County, Caloris, epproxmetely 6.33 mle fron the San Isaqun Rier/Secramento-Sa9

oauuin Det The Clty of Antioch is located approxumatey 36 miles northeast oF the City af Sen
Frencisco end 42 miles southwest of the Cy of Sacremento,

The West Aniach Ereek Channel !mpraveret

Project (Projec) Is cated in the City oF Antec
Ccortra Costa Ccunty, The Project woud reduoo Pad rise ithe Project area by Increasing the
‘apecity ofthe West ntioch Creek charg, bebgeen West Tenth Seat and Wea Sth Stet end re
estab sing the 25-year flcod protector. eapscy of the channel dvwnsircam oF West &th Strect to
the Burlington Nortvem Santa Fe (ENF; retroad veal

Project Description:

“he Projct is intended to reduce fling in the Project aba by Uesiyting fer # 25-yeer level of
pectecicn, Cartenty within the Project ates, Ute West Antioch Creek channel transtons from
Structure plate steel arch culverts unde West Tent Street £9 2 conerete-ned dich covered by
‘wooden planking under 2 parkiiy lot et 14C0 West Tenth street, fa an open cencrete-nee atch
adjacent to a ceipalt esniale with 2 nalghbering apartment pulling, to en earthen charnel that
‘ented ty Fou'th Stree, Frome Fou'th Stee: a cancrete-ined segment extends approximataly 550

fee befare tensioning to an carher chennel that continues north beyond the ENS’ alkoad
trestle

‘The Frojert would alter two adjacent reaches of tie channel, Projac: wars in Reach A (conveyance
imprrwements) would! Increase the capacty of the canvayarce syetem benkcen West Tenth Street
and Wast Bt irae. Project ncrk In eae" B (éesiting) voc Gazi the ehumnne! fram around est
th Street to agprovimatey 200 fest nacth of she BNSF ralond trestle 23 restore design cxpacty,
Fither reach can 2e impravad Indeoendenty from te other o° concurrently, but werk in bol!
reaches must be completed to realize improved levels 0 Naot protean,

Reach A ~ Conveyance Improvements: Sic akematiwes were proposed for Keach A. All
alteratives would use « minimum of four pre-cest conc'ete boy culverts messuring 14 feet wide
and 7 feet hign under Wast Tevth Street. However, the atematives dife> i

configuration fron West Tenth Street t near West Bth Street Table L provides @ summary of the
six azematives

of Desert
West Antioch Crock Channel improvement Project
- {Notice of Determination

fable 4. Alternatives for Reach A

Pee

Pre-Cast Box Colvett “channel type
‘amatve of pererranay | New 1 aad wai clon Fa VR
Toe Fr Was ant Sest pth 2 Wek Toth Sesto West am re,
nt | é
Atemabve Tecan = leat oFeperaratly | is eather armel wauldbataeh

th abe

Ternanie 7 — Cuvee econd slr of gBFOCNRAY | New ealoned eaten Came Fam Viet
dest oss Wes ant Set, Teh stent to Wast ath stret
|) Assrinive aR car woutecens eer of epprecmataly | We teamed exthen crac bar Wi
| 00 fea erozs Wes Tort sues: esd shtete |” Tent esta estat ster,
feat lta Foes basin sou - "
aaa Culvt watil ete fer leach of | New ve and ethan Fann Fos We
specail 00 fest nerve Wie Toth eh Sse op Wat oe
[ae ‘ular would edd fer stages af | Hts aligned e then shan Fo He
i gpesimatl 00 fest arse West Tenth Seat | Tet seep Wat Sh sy.

Reach 8 ~ Desilting: Project work in Reach 8 (desiting) would include the iemoval of
accumuleted secimant In tye earthen chanel frorr West bth Slreet downstear to approcimetaly
200 Feet north of Lie BNSF raiload trestle to restore sign capscty. Aparcximate’y 3,000 linear
feet of charnel would be desi.ed, Aparoxirately 4000 cusic yards ef sedment accuuetad since
bbe completion of the 1993 Project would be removed fram the channel 29 e-estatlsh te 1293)
Project Gesign contours, thus resting the design capacity cf the chanel to convey she 25-year
‘som vent ions,

“The city of Arti

as bie Lesd Agarcy. has aparoved the above-cesc
the folawing e

foee project ane has mide

1. There i ne substential evdence
erwronment

42. In eccarcance with CEQA, 3 Milgated Regative Declaration for the Project wes prepared
‘The Mtigated Negave Dedaration has been aporowed ty the City af Antioch, which ie the

Lead Agency for the Projec. Tha Miicated Negative Declaatin end racad of projer

aoproval may be evamined athe iy of Antioe, 200 H Street, Antic, Ca’ fornia 84399,

‘The Miigated Negative Decaration cefecs the mlependent judgment ancl anaes of he

hy of aticc

Fitigation raasures were required to be mada candivon of appl fhe Projac:

A Statement of Overricing Consderatcns was snl renuinad ta ha 2coptad fo: tre reject

AM tigation Manitesiig and Repo ting Pla. was adogtes for the Prajs

she Prevect will have a signficart effect on the

This is to cory thet the Final Mitigate Negative Daceration vith cor ments and responses ane

ecard of Ero:ect approval is avaiable to tne genera) puble at: Cty oF Antioch, 200 H Steet,
Anbach, CA 94508,

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A VASQUEZ:DEPUTY COUNTY CLERK

‘Shuaaty Reteipt nutter: 2076288
Council Chambers
200 H Street
Antioch, CA 94509

Closed Session -
Regular Meeting ~

ANNOTATED AGENDA
for
SEPTEMBER 23, 2014

Antioch City Council
Regular Meeting

Including the Antioch City Council
acting as Successor Agency to the
‘Antioch Development Agency

Wade Harper, Mayor
Mary Helen Rocha, ayer Pro Tem
Monica E, Wilson, Council ember
Tony Tiscareno, council Member
‘Arne Simonsen, Cty Clerk
Donna Conley, city Treasurer
Steven Duran, City Manager
Lynn Tracy Nerland, city attorney

‘Blectronlc Agenda Packet viewing a; hitp://www:ciantich.caus/CityGov/agendas/Findgenta sn
‘With Project Plans at: hrtp://ciantioch.caus/CityGov/CommDer Plann ngDivision/dnes/PrejectPipeline pdf
Hard Cope viewing at: Antioe: Public Library, SOL W 1th St, Antioch, CA

Online Viewing: htip://www-ciantioch.ca.us/CiyGav/cltycouncimeetingsasp

Council meetings are televised live on Comcast Channel 24
APPROXIMATELY 559 ACRES, THE PROJECT SITE IS LOCATED ON THE WES! SIDE OF
HEIDORN RANCH ROAD, AT THE EASTERN TERMINUS OF PREWETT RANCH DRIVE (APNS
(056-130-012).

Direction provided to applicant, 40

Recommendation: Motion to provide Feedback tothe applicant and siaf regarding the propesal
eng provide diecllan :o th apalicant for the Final Development Plan
submittal

COUNCIL REGULAR AGENDA

ADOPTION OF THE INITIA. STUDYINITIGATED NEGATIVE DECLARATION AND MITIGATION
MONITORING AND REPORT PROGRAM AND SELECTION OF DESIGN PARAMETERS FOR THE
WEST ANTIOCH CREEK CHANNEL IMPROVEMENTS PROJECT {P.W 201-6)
Reso No. 2074/84 adopted and
Recommendation: 1) Motion ta. adopt the resolution approving and adopting. the Inttal
StudyiMiigarec’ Negative Declaration and Mitgation Monitoring and
Report Program far the West Antioch Creek Channel Imerovements
project.

Approved, and
2) Motion to authorize the Director of Public Works!Cty Enginear ‘0 utlize
Conveyanee Altemative #3A as tho basis for final project design.
140
5) Motion lo authorize the Director of Publle WorksiCiy Engineer to
femporarly clase West 10” Srest between L’ Steet end Auto Center
Drive suring the constrsction ofthe rew culver structure.
STAFF REPORT
6, ANNUAL HOUSING ELEMENT PROGRESS REPORT
Received and filed, 4/0
Recommendation: Malian {0 receive allow public comment, and fle the Annual Housing

Element Progress Repo
oa STAFF REPORT

7. CITY OF ANTIOCH SOCIAL MEDIA PRESENCE
Received and fled with direction to staff, 4/0
Recommerdation: Mallon to receive report and ditoct staff regarding developing and
tenharcing the City of Antics arasence on Social Mad outlets
‘STAFF REPORT
8, POTENTIAL MID YEAR BUDGET PRIORITIES
Received with direction to staf, 4/0
Recommerded Action: Motion to racsive report and wiroct staf regarding budget prirtos for mi
year budget adjustmants F te Businoss Lleense Tax Mewsure O, passes

{an Novombor 4, 2014
STAFF REPORT

PUBLIC COMMENT

ANTIOCH GITY COUNCIL 4 SEPTEMBER 23,2014
GRD [owe consuting. tne.
ENVIRONMENTAL CONSULTANTS
FINAL
Initial Study and Mitigated
Negative Declaration
West Antioch Creek Channel
Improvement Project
and
Responses to Comments

September 2014

Lead agency:
City of Antioch

200 H Street
Antioch, CA 94509

Propared By:
ECORP Consulting, Inc.
2525 Warren Drive
Rocklin, CA 95677

aaa SB
West Antioch Crock Channel Improvement Project
Notice of Determination

NOTICE OF DETERMINATION

TO: office of Planring and Research FROM: Cty of Antioch
1400 20" Steet IO Steet
Spramente, CA 95814 ‘tach, CA 94508

SUBJECT: Fling of Notice cf Determinaton in compliance with Section 21108 of the Public
Resources Code

PROJECT TITLE: West Antioch Crees Channel imprevement Project

State Clearinghouse Number Contact Person _—Telephone Number
201442073 Mindy Gentry [phone]

Project Approval:

“The City of Antioch apprewedl the West Rnioch Creek Channel Improvement Project on Septembar
23, 7014

Project Location:

“The Pract is lacatad within tre northern resch of Mest Antioch Cree ir the City of Antioch, Contra
Costa County, Calfornis, approximately €.33 mile fom te Sar. Jonqun River/Secramanto Son
Soaguin Datta, The Cy oF fitch is located appreximatey 3 mice nartheast of the City oF San
Francisco and 42 mils southwest of the Cy ef Saeamento

“The West Antioch Creek Channel Imprevenent Project (Project) Is located in the City of Antioch,
Contra Costa County. The Project would vetuce flood risk in the Project area by creasing the
capacty ofthe West Antioch Creek channel between West Tenth Street and West th Stece and re
estabiishing the 25-year food protecton capecity ofthe channel downstream of West Sth Street to
the Buriigton Noemn Santa Fe (BNSF) ralraad trestle,

Project Description:

‘The Project is intended to reduce floeding in the Project area Sy designing for @ 25-year level of
protecticn. Currently within the Project area, the West Antioch Cicek chanrel transtins fom
structutal plate steel atch culvets under West Tenth Street, to a concretlind clitch covered ty
wooden planking under a parking fot at 100 West Tenth Seat, tan open concrete-tinad ditch
adjacent ta carport associated with 2 neighanving apartment buiting, tm an esrthen charine! that
fextenis to Fourth Steet. From Fouts Street a concrete-ie’ segmnent extends approximately 50,
feet before transitoning to an certhen crannel that corinues north beyond the BNSF raload
reste

The Project would alter t9o adjacent roaches ofthe channel Project work in Reach A (conveyance
Improvements) would increase the cepacity ct the conveyance system between West Tenth Street
‘and West tth Street. Praject work in Reach & (desitirg) would desit che channel from around West,
8th Street to approximately 200 feet nerth of the BNSF ralroad trestle to restore design capacity.
Ether reach can be improved indeperdewt’ from the ether ar concurrently, but work in both
reaches must be cempietad te realize imoroves levels offload protection

Reach A ~ Conveyance Improvements: Six alternatives were proposed for Reach A. All
alternatives would use a reinimurn of four pre-cast concreto box culverts measuring 24 fest wide
and 7 fact high under Wee: Tenth Stroot, Hawoves, the alkerratives difsr in the conveyance
configuration fren West Tenth Stract te near West th Street. Table 1 provides a summery oF the
scakernatves

Tie of Beinn T Seatevoer 2014
West Antioch Greek Channel Improvement Project,
Notice of Determination

Table 1 Alternatives for Reach A

ternative re-Cast Box Culvert channel Type
Tieatve || Gaier odl eieid a gh cf appormasy | Rew wand cat
So2 fe om et Tel teat nar toes | hirh Stel ta Wet Bh Suze,
th Seat
araive? iver woul eed a lgt cFappsacmesy | Wo eaten channe woud be nce
00 ee ror est Teh test anh es ou
=< "Wes th test.
teraive S| COR WUT esend 3 leat of appraaniasiy_| Naw realigned een anna Te West
ree | oo et oem Nest Teh sect “ent srt 0 West
TFRERERVEIA | Gana woul ete 9 gt ef approameily | We eas eat chanel rom We |
400 eat sce ast Tere Set ond st 2 Tenth Sirettotvt ste,
E feetawc wih avsion bon veers
Tiaves Cu wal a or a ngth of | rw sealghe eaten chanel fon Wat
nerosaty 05 festacmes es Ten Stee, | Tenth stot to Vist Bh Stet
ive 5 Cuber wauld exces for eigih of | RE ore este channel lm West
apwrxsuatly 03 festa West Tend Sweet, |" Testh Stott West OU Stet.

Reach & — Desilting: Project work in Reach B (desing) ould incite the “ewval 0
aceumiulsted setlment in the earthen charne from West sth Street downstream to appruxintely
200 fect nor) of the BNSF raload teste to restore design capac. Approximately 3,000 linear
fer of channel would be desi ted. Approximately 30,000 cubic yards of sediment accumulated since
the completion ofthe 1993 Project would be removed from the chennel to reesablisn the 1993
Project design concours, thus restoring the cesqn capacty of che channel tb convey the 25-year
storm event fons.

“The chy of Antioch, as the Leac Agency, has approved the above-described project and has made
the felloning deverminators;

1, There 1S no substantial evidence Uist the Project will have 2 significant effect on the
ervironment.

2, Invaecordarice with CEQA, a Miigated Negative Devaraion fur the Preject was prepared,
The Miigated Negative Declaration has aeen approved by Ue City of Antoch shih i the

Lesd Agency for the Project. The Mitigated Negative Decuraign and record O° prosect

approval may be exemired at the City of antoch, 200 H Street, Anion, Caifo nia 94803,

“The patigated Negatwe Jeciaranon refec’s the Iéegendent judgment and ens af the

ty o Antioch

3, ‘itgation measures were required to be mace a condition cf approval of the Project.

4. a Statement of Overrding Gorsiderations was ric requlred to be adopted forthe Project.

5. A Mgation Moritoring and Reporting Plan was adopted forte Prot.

‘Ths i to vent that te Final Miigated Negative Decaraten yath comments and ressonses and
Fecord of project appreval is avalable to the general pubic at: Cty of Antioch, 200 H Street,
Ariloch, CA 94508,

‘Mindy Ganey, Senior Planner, Cy of Antioch Cate
Dete Received for Fling at OPR:

Serene 7 Tart Baaton
West Antioch Greek Channel Improvement Project
Final Mitigated Negative Declaration

FINAL MITIGATED NEGATIVE DECLARATION
West Antioch Creek Channel Improvement Project

Lead Agency: City of Antioch

Project Location: The Project's lnated on the northem aortion of West Antioch Creek ir the City
Of Artioch, Contra Costa County, Caifornis, approximetely 0.33 mile from the San Joaquin
River/Sacramento-Sar Joaquin Delte. The City oF Antioch is Iocated aporoxmecely 36 miles
nottheast ef the Gly of San Francisoo and 42 miles southwest ofthe Cty of Sacramento.

Project Description: The Project vould improve the floac capacity of the West Antioch Creek
channel to @ 25-year level of protection and reduce ‘locing in the Project area within the City
Anboch. This Project consists of two components for one overall goal within the Project ares:
therefore the Project has been dived into two adiacent channel reaches titled Resch A and Reach
8, Project work In Reach A (conveyance improvements) would increese the capacity of the
conveyance system between West Tenth Sbect 10 approximately West 8" Street Project work in
Reach’ B (desiting) would dosit the channel between approximately West 3" Street to
approximately 200 feet north of the Burington Northern Santa Fe (BNSF) ralroad trestle to restore
sion capscty. Ether reach cen be impraved independently fom the othor or concurrent, bie
work n both reaches must be completed in order to realze Improved levels af faa protection,

Finding: Based on the information contained inthe attachad Intl Study, the Cty o* Antioch fins
that there would not be a signcant impact to the envirenment because the mit gation measures
deserved Fercin would be Incarporated as art ef re Prec.

Public Review Period: April 25, 2014 to May 28, 2014
Mitigation Measures Incorporated into the Project to Avald Significant Effects
Alkeratives 34, 4, and 5 would require all of the mitigaton meesures Isted in this "itigated
Negative Declaration (MIND) ta be implemented. Akeratves 1, 2, and 3 would require the
Implemesation of ll af the ligation msasures except Mitigation Meastre: HM-2 and HME,

Air QualityiClimate Change

MRigation Measure

AQ-A: Basic Measures from Table 2 of the BAAQMD CEQA Guidelines

“The folowing are the Basic Measures from Table 2 of the BAAQMD CEQA Guidelines, Table 2
notes, "The folowing controts should be implemerted at al construction ses."

A. Water al active corstusction aroas at last twice dally,

Gover all trucks hauling soi, sand, and ther nose materials or raquire al trucks to maintais
at leat two Feat of Fresbond

‘ligated Neale Dera Sepranber a1