Theodore D. Schade Air Pollution Control Offiatr 

## GREAT BASIN UNIFIED AIRPOLLUTION CONTROL DISTRICT 157 

### Short Street, Bishop, California 93514-3537 

### Tel: 760-872-821 1 

### Fax: 760-872-61 09 \c \r \r

.ubi~apcd orq



### May 19,2010
Sent Via Federal Express
Mr. James Goldstene Executive Officer California Air Resources Board 1001 "I" Street Sacramento, California 958 14


### RE: 2010 PMlO Maintenance Plan and Redesignation Request for the Coso Junction Planning Area
Dear Mr. Goldstene:
Onbehalf of the Governing Board of the Great Basin Unified Air Pollution Control District, I am transmitting to the California Air Resources Board the 2010 PMlO Maintenance Plan and Redesignation Request for the Coso Junction Planning Area (2010 Maintenance Plan) adopted by the District's Governing Board on May 17, 2010. The 2010 PMlO Maintenance Plan is a revision to the 2004 State Implementation Plan for Coso Junction. The Governing Board's approved action includes: 1)a recommendation for CARB to request that the US Environmental Protection Agency redesignate the area from nonattainment for the National Ambient Air Quality Standard for PMlO to attainment based on monitoring data and a modeling analysis, and 2) adoption of a maintenance plan that includes requirements to ensure that the federal PMlO standard will not be violated in the future. As required to redesignate the area to attainment, monitoring data and a modeling analysis showed that the Coso Junction Planning Area complied with the federal PMlO standard (150 micrograms per cubic meter for a 24-hour average) during the 3-year period from January 2007 through December 2009. The enclosed 2010 Maintenance Plan was adopted after a duly-noticed hearing and opportunity for written and oral public comment. The Declaration of the District's Board Clerk certifying the facts showing the District's compliance with notice and public hearing requirements for the SIP adoption and copies of the Board resolution adopting the 2010 Maintenance Plan and a CEQA notice of exemption are also included in this transmittal package.James Goldstene.GARB May 19,2010 Page 2 of 2



### The District respecthlly recommends that the Coso Junction Planning Area be redesignated from nonattainment to attainment with the federal PMlO standard and that CARB review and approve the 20 10Maintenance Plan. We request that the approved 20 10 Maintenance Plan be 

### transmitted to the US EPA with a request to redesignate the Coso Junction Planning Area to attainment with the federal PMlO standard. Sincerely,

Theodore D. Schade Air Pollution Control Officer

Enclosures (2 hardcopies, 2 CDs)

cc: Doris Lo, USEPA (wI2 hardcopies, 2 CDs) Sarvy Mahdavi, USEPA (w1CD) Sylvia Oey, CARB (w1CD) Elizabeth Melgoza, CARB (w/CD)

# PROOF 

# OF PUBLIC 'ATION (201

## 5.5C.C.P.) STATE OF CALIFORNIA,

I 

### 1 

### COUNTY OF INYO
I am a citizen of the United States .and a resident of the County aforesaid. I am over the age of eighteen years, and not a party to or interested in the above-entitled matter. I am the principal clerk of the printer of the 

### The lnyo Register

County of lnyo The lnyo Register has been adjudged a newspaper of general circulation by the Superior Court of the County of Inyo, State of California, under date of Oct. 5, 1953, Case Number 5414; that the notice, of which the annexed is a printed copy (set in type not smaller than non-pareil), has been published in each regular and entire issue of said newspaper and not in any supplement thereof, on the following dates, to wit:



### APRIL 1, 15 

### in the 

### year 2010 I certify (or declare) under penalty of perjury that the foregoing is true and correct. on this 15TH day of APRIL, 201 0 This space is for County Clerk's Filing Stamp



### APR 

### f 

## 9 

## 20\0

Proof of Publicationof 

# Public Notice

NOTICE OF PUB1 IC ADOPTION AND APPROVAL OF 2010 PMlO MAINTENANCE PLAN AND REDESIGNATION REQUEST FOR THE COSO JUNCTION -" PLANNINGAREA ,s 1~ PLEASE TAKE NOTICE that rH the Governing Board of the 

## - Great Basin UnifiedAir Pollution Control District (GBUAPCD) will, conduct a public hearing and consider for adoption the 2010 PM 10 Maintenance plan and Redesignation Request for the (Coso PMlO Plan). The public

# I

Coso Junction Planning Area 

## - hearing, and the Governing Board's cons~derationfor adoption, will occur at the District Governing Board's regular meeting on Monday, May 17, 2010 at 10:OO a.m. in the Mono County Supervisors Chamber. ' Mdno County Courthouse, 2nd Floor. Main Street (Hlghway 395). Bridgeport, Califo!nia 93517. The public hearing on the Coso PM10 Plan is set for 10:15 a.m. The Coso PMlO Plan includes 1) a request to redesignate the area from nonattainment for the National Ambient Air Quality Standard for PMlO (federal standard) to attainment based on monitoring data and a modeling analysis. and 2) a maintenance plan that contains requirements to ensure the federal standard will not be violated inthe future. Other actions related to the' adoption nf the Coso PMlO Plan may also hn +-ban e+ 1hm maatinn hlmm-Theodore D.Schade Air PollutionConlrol Officer



# GREAT BASIN UNIFIED AIR POLLUTION CONTROL DISTRICT 157Short Street, Bishop, California 93514-3537 760-872-8211 Fax: 760-872-6109



### BIO #I 0051 7-4~
May 17,2010

I HEREBY CERTIFY that at a regular meeting of the Great Basin UnifiedAir PollutionControl District Governing Board held in the Mono County Supervisors Chambers in Bridgeport, California on May 17, 2010 an order was duly made and entered as follows: AGENDA ITEMMc: APPROVAL OF 

### RESOLUTION 2010-01 AND THE 

### 2010 PMIO MAINTENANCE PLAN AND 

### REDESIGNATION REQUEST FOR THE 

### COSO JUNCTION PLANNING AREA A motion was made by Cervantes and seconded by Arcularius approving Board Resolution 2010-01, which 1) requests the US Environmental Protection Agency to redesignatethe Coso Juntion Planning Area from nonattainment for the federal PMlO standard to attainment, 2) adopts the PMlO maintenance plan to ensure that compliance with the federal PMlO standard is maintained in the Coso Junction Planning Area. The Board than further directed the APCO to file a CEQA notice of exemption for this project.

Ayes: Board Members 

## - Arcularius, Hazard, Sweeney, Cervantes, Veatch, Eastman Noes: 

### 0 Abstain: 0 

### Absent: Board Members 

## - McCarroll, Hunt Motion carried 610 and so ordered.

ATTEST:

.J

. 

### ;fl,< 

# Xe f4&.-

- 

### ~<ri DeHaven, Clerk of the Board

### RESOLUTION OF THE GOVERNING BOARD OF THE GREAT BASIN UNIFIEDAIR POLLUTION CONTROL DISTRICT ADOPTING THE 2010 PMlO MAINTENANCE PLAN AND REDESIGNATION REQLlEST FOR THE COSO JUNCTION PLANNINGAREA AND MAKING FINDINGS OF FACT

WHEREAS, on August 6, 2002, the United States Environmental Protection Agency (USEPA) designated the Coso Junction Planning Area as a nonattainment a'rea for the NationalAmbient Air Quality Standard for particulate matter of ten (10) microns or less in diameter (PMl0); and WHEREAS, the Coso Junction Planning Area for PMlO includes Rose Valley, the Coso Geothermal Known Resource Area, and a portion of the China Lake Naval Air Weapons Station in southern lnyo County; and WHEREAS, the Great Basin Unified Air Pollution Control District, in accordance with the designation by USEPA of the Coso Junction Planning Area as a nonattainment area adopted the 2004 State lmplementation Plan for the Coso Junction Planning Area; and WHEREAS, since adoption of the 2004 State lmplementation Plan PMlO air quality has improved significantly in the Coso Junction PlanningArea as a result of implementing dust control measuresfor windblown dust at Owens Lake, California, which is the mqjor contributing 'source of PMlO to the Coso Junction Planning Area; and WHEREAS, PMlO concentrations measured in the Coso Junction Planning Area demonstrated compliance with the National Ambient Air Quality Standard for PMlO from 2006 through 2009; and WHEREAS, future compliance in the Coso Junction Planning Area will be ensured as a result of the implementation of dust control measures at Owens Lake, California through requirements contained in the PMlO State lmplementation Plan for the Owens Valley Planning Area, approved by the USEPA in 1998 and as revised by the Great Basin UnifiedAir Pollution Control District and California Air Resources Board in 2003 and 2008; and WHEREAS, the 1990federal Clean Air Act provides for the State of California, after reasonable notice and public hearings, to request that the USEPA redesignatethe Coso Junction Planning Area to attainment with the National Ambient Air Quality Standard for PM10; and

Resolution2010-01

May 17,2010 Page 1 of 3WHEREAS, a redesignationof the Coso Junction PlanningArea to attainment with the NationalAmbient Air Quality Standard for PMlO requires a revision of the State ImplementationPlan,which providesfor the maintenance and enforcement of the PMlO standard in the Coso Junction PlanningArea (also known as a maintenance plan); and WHEREAS, under California law, the Great Basin UnifiedAir Pollution Control District is the governmental entity charged with the responsibilityof developing and adopting such a maintenance plan for the Coso Junction PMlO PlanningArea, and with the timely submittal of such adopted plan to the California Air Resources Board; and WHEREAS, pursuant to the California Environmental Quality Act (CEQA), the 2010 PMlO Maintenance Plan and Redesignation Request for the Coso Junction PlanningArea is exempt under s15061(b)(3) of the CEQA Guidelines; and WHEREAS, the Great Basin UnifiedAir Pollution Control District has developed and circulated for public review, and received and considered public comment upon the revised 201 0 PMlO Maintenance Plan and Redesignation Request for the Coso Junction PlanningArea; and WHEREAS, the 2010 PMlO Maintenance Plan and Redesignation Request for the Coso Junction PlanningArea is now before this Governing Board for consideration of final adoption. NOW, THEREFORE, BE IT RESOLVEDthat following review by this Governing Board of the revised 2010 PMlO Maintenance Plan and Redesignation Requestfor the Coso Junction Planning Area, after consideration of written and oral public comments received on the proposed 2010 PMlO Maintenance Plan and Redesignation Request, this Governing Board hereby finds as follows:

1. The major source contributing to the PMlO nonattainment problem inthe Coso Junction Planning Area is windblown dust from the Owens Lake bed; 

### 2. PMl0 monitoringdemonstrated that the Coso Junction PlanningArea has attained the National Ambient Air Quality Standard for PMlO as a result of control measures implementedat Owens Lake.

Resolution 2010-01

May 17.2010 Page 2 of 33. The 1998 Owens Valley State lmplementation Plan and revisions in 2003 and 2008 will ensure that compliance with National Ambient Air Quality Standard for PM10 is maintained in the Coso Junction Planning Area;

BE IT FLIRTHER RESOLVED, that in consideration of each of the foregoing findings, statements and legal requirements, this Governing Board hereby approves and adopts the proposed 201 0 PMlO Maintenance Plan for the Coso Junction PlanningArea; and BE IT FURTHER RESOLVED, that the adopted State lmplementation Plan for the Coso Junction PlanningArea be forwarded for appropriate review to the CaliforniaAir Resources Board with a request to redesignate the Coso Junction Planning Area to attainment with the NationalAmbient Air Quality Standard for PM10. 

### APPROVED AND ADOPTED by the Governing Board of the Great Basin Unified Air Pollution Control District this 17th day of May, 2010, by the following vote:
AYES: Board members - Sweeney, Arcularius, Veatch, Cervantes, Eastman, Hazard

NOES: O
ABSTAIN: 0
ABSENT: Board members - McCarroldunt 

# f 

# Mk Tom Sweeney, Boa

ATTEST:

.A 

### 2?4.L 

# LL,c&H,- Tori DeHaven, Clerk of the Board

Resolution 2010-01 May 17.2010 Page 3 of 3157 Short Street, Bishop, California 93514-3537 Tel:760-872-821 1 Fax: 760-872-6109



### TO: County Clerk County of lnyo 

### NOTICE OF EXEMPTION FROM: Great Basin UnifiedAir PollutionControl District 157 Short Street Bishop, California93514 

### Project Title: 2010 PMlO Maintenance Plan and Redesignation Request for the Coso Junction PlanningArea 

### Project Location

# - Specific: Coso Junctionarea in Eastern California, southern portionof lnyo County 

### Project Location

# - County: lnyo County (See Figure 1) 

### Descriptionof Project: The 2010 PMlO Maintenance Plan and RedesignationRequest for the Coso Junction PlanningArea isa revisionto the 2004 State Implementation Plan (SIP) for CosoJunction. The proposed action includes: 1) a request

### to the US Environmental ProtectionAgency to redesignate the area from nonattainment for the NationalAmbient Air Quality Standard for PMlO (federal standard) to attainment based on monitoringdata and a modelinganalysis, and 2) a maintenance planthat includes requirements to ensure that the federal PMlO (particulatematter lessthan 10 microns in nominaldiameter) standard will not 

### be violated inthe future. As requiredto redesignate the area to attainment, monitoring data and a modelinganalysis showed that the Coso Junction PlanningArea (CJPA) compliedwith the federal PMlO standard (150 micrograms per cubic meterfor a 24- hour average) during the 3-year period from January 2007 through December2009. The boundaries of the CJPA are shown in Figure 1. No new regulations are proposed with the approval of the maintenance plan or the recommended action for the US Environmental ProtectionAgency to redesignatethe CJPA from nonattainmentto attainment with the federal standard. 'The Districtwill rely on existing District rulesfor PMlO and requirementsin the 2008 OwensValley PMlOSIP to ensure that the federal PMlO standard is maintained inthe CJPA. 

### Agency Approving and Carrying Out the Project: Great Basin UnifiedAir Pollution Control District 

### ReasonWhy the Project is Exempt: The projectwill not resultina director reasonably foreseeable indirect physical change inthe environment. CEQA Guidelines§15060(c)(2); 15061(b)(3).



### LeadAgency Contact Person: Duane Ono, Deputy Air Pollution Control Officer, Telephone: (760) 872-8211


### Signature: 

# - Title: Theodore D. &ha&, Air PollutionControl Officer



### Date Received for 

### filing:Figure 1. The Coso Junction PlanningArea is located insouthern lnyo County, California. Windblown dust fromthe exposed lake bed at Owens Lake is 

### the primary source of PMlOthat caused federal air quality violations in

### the CJPA. Dustcontrol measuresimplementedat Owens Lakefrom 2002through2006 resultedin significantreductionsinPMIOin the CJPA. Compliancewith 

### thefederal PM10standardwas measuredat Coso Junction duringthe 3-yearperiodfrom January 2007 through December2009.

Owerr, Lake Dust Control Areas

:\ li .