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ALAMEDA COUNTY COMMUNITY DEVELOPMENT AGENCY NEIGHBORHOOD PRESERVATION AND SUSTA1NABILITY DEPARTMENT Chris Bazar Agency Director James D. Gilford Director 224 West Winton Ave Room 205 Hayward California 94544-1215 phone 510.670.5333 fax 510.670.6431 www.acgov.org/cda April 25, 2013 Scott Hess Cemex, Inc. 333 N. Lantana Street, Suite 102 Camarillo, CA 93010 RE: SMP-23 (Eliot Mine) - Lake B Corrective Action Plan Mr. Hess: This letter responds to the February 12, 2013 request for administrative approval of an amendment to the approved reclamation plan for Surface Mining Permit & Reclamation Plan No. 23 ("SMP-23"), in accordance with Surface Mining Ordinance §6.80.120. More specifically, the request concerns the portion of SMP-23 commonly referred to as "Lake B." Proposed Reclamation Plan Amendment The approved reclamation plans depict a maximum excavation depth of three- hundred forty (340) feet Mean Sea Level (MSL) at Lake B.1 The proposed reclamation plan amendment proposes to deepen Lake B, within its present footprint, to a maximum depth of two-hundred fifty (250) feet MSL.2 All slopes would be maintained at a maximum angle of 2-to-l with no back-fill occurring. The proposed reclamation plan amendment was subject to a groundwater impact assessment and slope stability investigation.3 The County has reviewed the contents of those studies and agrees with their conclusions; namely, that the proposed reclamation plan amendment would result in no slope instability and no adverse effects to groundwater. The Zone 7 Water Agency also concurred with each study's findings in a November 15, 2012 letter. Exhibit B to Planning Commission Resolution No. 87-18, Sheet 9 of 14. Sheet 1 and 2, of plans by Spinardi Associates dated June 10, 2012 and labeled "Lake B - Corrective Action Plan for Cemex SMP-23 Lake B Area Three-Year Plan." Berloger Stevens & Associates, Slope Stability Investigation Lake B - Corrective Action Plan SMP-23 Quarry Livermore, California, October 30, 2012; Dr. Andrew A. Kopania, Groundwater Impact Assessment of the Lake B - Corrective Action Plan for the Cemex Eliot Quarry -SMP-23 Pleas anton, California, October 17, 2012.

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Page 1: (250) MSL.2 All Mean Sea Level (MSL) The B

ALAMEDA COUNTY COMMUNITY DEVELOPMENT AGENCY

NEIGHBORHOOD PRESERVATION

AND

SUSTA1NABILITY DEPARTMENT

Chris BazarAgency Director

James D. GilfordDirector

224

West Winton AveRoom 205

Hayward

California

94544-1215

phone

510.670.5333

fax

510.670.6431

www.acgov.org/cda

April 25, 2013

Scott Hess

Cemex, Inc.

333 N. Lantana Street, Suite 102

Camarillo, CA 93010

RE: SMP-23 (Eliot Mine) - Lake B Corrective Action Plan

Mr. Hess:

This letter responds to the February 12, 2013 request for administrative

approval of an amendment to the approved reclamation plan for Surface

Mining Permit & Reclamation Plan No. 23 ("SMP-23"), in accordance with

Surface Mining Ordinance §6.80.120. More specifically, the request concerns

the portion of SMP-23 commonly referred to as "Lake B."

Proposed Reclamation Plan Amendment

The approved reclamation plans depict a maximum excavation depth of three-

hundred forty (340) feet Mean Sea Level (MSL) at Lake B.1 The proposedreclamation plan amendment proposes to deepen Lake B, within its present

footprint, to a maximum depth of two-hundred fifty (250) feet MSL.2 Allslopes would be maintained at a maximum angle of 2-to-l with no back-fill

occurring.

The proposed reclamation plan amendment was subject to a groundwater

impact assessment and slope stability investigation.3 The County has reviewedthe contents of those studies and agrees with their conclusions; namely, that

the proposed reclamation plan amendment would result in no slope instability

and no adverse effects to groundwater. The Zone 7 Water Agency also

concurred with each study's findings in a November 15, 2012 letter.

Exhibit B to Planning Commission Resolution No. 87-18, Sheet 9 of 14.

Sheet 1 and 2, ofplans by Spinardi Associates dated June 10, 2012 and labeled "Lake B -

Corrective Action Planfor Cemex SMP-23 Lake B Area Three-Year Plan."

Berloger Stevens & Associates, Slope Stability Investigation Lake B - Corrective Action

Plan SMP-23 Quarry Livermore, California, October 30, 2012; Dr. Andrew A. Kopania,Groundwater Impact Assessment of the Lake B - Corrective Action Plan for the Cemex

Eliot Quarry -SMP-23 Pleasanton, California, October 17, 2012.

Page 2: (250) MSL.2 All Mean Sea Level (MSL) The B

(SMP-23) Lake B Corrective Action Plan Page 2 of 5

Applicable Standard of Review

Surface Mining Ordinance §6.80.120 states, in relevant part,

"Applications to modify the terms or conditions of, or uses permitted

under, a surface mining permit or an approved reclamation plan shall be in

accord with the provisions of this section, except that minor changes in

dimensions, volumes, or timing of the staging plans that will not affect

implementation the reclamation plan may be approved by the planning

director."

Surface Mining and Reclamation Act Regulations §3 502(d) states, in relevant

part,

"An amended reclamation plan shall be approved by the lead agency prior

to the commencement of activities determined to be a substantial deviation

from the approved plan. For purposes of the Surface Mining and

Reclamation Act of 1975 and regulations adopted pursuant thereto, a

substantial deviation shall be defined as a change or expansion to a surface

mining operation that substantially affects the completion of the

previously approved reclamation plan, or that changes the end use of the

approved plan to the extent that the scope of the reclamation required for

the surface mining operation is substantially changed."

Director Approval ofRequest

In accordance with the administrative authority provided in Surface Mining

Ordinance §6.80.120, approval is hereby granted for the "Lake B Corrective

Action Plan (CAP)." Findings supporting this action, as required by Surface

Mining Ordinance §6.80.160, include:

1. That the amended reclamation plan complies with SMARA Sections

2772 and 2773, as may be amended, the provisions of the Alameda

County Surface Mining Ordinance, and other applicable provisions.

The amended reclamation plan concerns a request to mine deeper

within a limited portion of Lake B at SMP-23. Mining would occur

within the originally approved reclamation plan's surface area. This

request would not materially alter the originally approved reclamation

plan which was previously approved in accordance with the

aforementioned sections of SMARA and the Surface Mining

Ordinance. Lake B would remain, as intended.

2. That the amended reclamation plan complies with applicable

requirements of State regulations (CCR §§3500-3505, and 3700-3713,

as may be amended). The amended reclamation plan does not

constitute a substantial deviation, as defined by CCR §3 502(d), since it

would:

Page 3: (250) MSL.2 All Mean Sea Level (MSL) The B

(SMP-23) Lake B Corrective Action Plan Page 3 of 5

a. Not result in an increase in the disturbance of a surface area or a

substantial increase in the maximum depth of mining, as

demonstrated by Sheets 1 and 2 of the plans prepared by Spinardi

Associates, titled "Lake B - Corrective Action Plan for Cemex

SMP-23 Lake B Area Three-Year Plan, dated June 10, 2012.

b. Not result in an extension of the termination date of the mining

operation as set out in the approved reclamation plan.

c. Not affect the approved end use of the site as established in the

reclamation plan. Lake B would remain, as contemplated by the

Specific Plan for Livermore Amador Valley Quarry Area

Reclamation ("LAVQAR Specific Plan"). In fact, the amended

reclamation plan would result in an enhancement to Lake B by

enabling greater recharge of the groundwater basin.4

3. That the amendment will not cause the originally approved

reclamation plan, including its planned use of reclaimed land, to be

inconsistent with this chapter, the county's general plan and LAVQAR

Specific Plan. The LAVQAR Specific Plan depicts the creation of

Lake B at the area subject to this request. The amended reclamation

would, as mentioned, continue to enable the creation of Lake B.

4. That the amendment has been reviewed pursuant to the California

Environmental Quality Act (CEQA) and determined to be

Categorically Exempt pursuant to CEQA Guidelines §15301.

5. That the land and/or resources such as water bodies to be reclaimed

will be restored to a condition that is compatible with, and blends in

with, the surrounding natural environment, topography, and other

resources. The amended reclamation plan would not materially alter

the way Lake B is planned to relate to the surrounding environment.

6. That the reclamation plan will restore the mined lands to a usable

condition that is readily adaptable for alternative land uses consistent

with the general plan and applicable resource plan, as specified in the

reclamation plan.

7. That, prior to acting on the proposed amendment to the approved

reclamation plan, it was sent to the State Department of Conservation

for review, in accordance with SMARA §2774. A written response

from the State Department of Conservation, Office of Mine

Reclamation (OMR) was received, in email format, on April 15, 2013.

The OMR response indicated support, without exception or conditions,

See Page 12 of Groundwater Impact Assessment of the Lake B - Corrective Action Plan

for the Cemex Eliot Quarry - SMP-23 Pleasanton, California, by Dr. Andrew A.

Kopania and dated October 17, 2012.

Page 4: (250) MSL.2 All Mean Sea Level (MSL) The B

(SMP-23) Lake B Corrective Action Plan Page 4 of 5

for the action taken herein. The county's position is not at variance

with the State Department of Conservation.

In addition to the findings provided in accordance with Surface Mining

Ordinance §6.80.120, the Community Development Agency makes the

following additional findings:

1 . Continued mining and reclamation activities are, in general, desirable

at SMP-23 since they provide locally extracted minerals essential to

the economic well-being of the County of Alameda.

2. This approval must not conflict with the requirements imposed by the

Alameda County Planning Commission vis-a-vis Resolution No. 12

20. Conditions included below are intended to avoid such a conflict.

3. Prior to granting this approval, the Community Development Agency

provided copies of all submittals referenced herein to the Zone 7

Water Agency staff for their review and comment. On March 21,

2013, the Zone 7 Agency staff communicated, via email, no objection

to the Community Development Agency issuing this approval.

4. Prior to granting this approval, the Community Development Agency

completed independent peer reviews, by qualified experts, of the

submitted Berloger Stevens & Associates, Slope Stability Investigation

Lake B - Corrective Action Plan SMP-23 Quarry Livermore,

California, October 30, 2012; and Dr. Andrew A. Kopania,

Groundwater Impact Assessment of the Lake B - Corrective Action

Plan for the Cemex Eliot Quarry - SMP-23 Pleasanton, California,

October 17, 2012.

This approval is, as provided by Surface Mining Ordinance §6.80.180, subject

to the following conditions:

1. Mining shall be in substantial compliance with Sheet 1 and 2 of the

plans prepared by Spinardi Associates, dated June 10, 2012 and

labeled "Lake B - Corrective Action Plan for Cemex SMP-23 Lake B

Area Three-Year Plan."

2. Mining may occur within the existing footprint of Lake B until June

17, 2013. If the application required by Condition No. 7 of Planning

Commission No. 12-20 is received by June 17, 2013, mining may

continue for a period of twelve (12) months. Alternatively, if that

deadline is not met, mining shall cease until the application is

received.

3. The Permittee may request to extend this approval if the Director

determines the Permittee is in substantial compliance with Condition

No. 8 of Planning Commission No. 12-20.

Page 5: (250) MSL.2 All Mean Sea Level (MSL) The B

(SMP-23) Lake B Corrective Action Plan Page 5 of 5

4. If, after June 17, 2013, the Director determines the Permittee is not in

substantial compliance with Condition No. 8, of Planning Commission

No. 12-20, this approval may be revoked and remedy should be sought

through Article V of the Surface Mining Ordinance.

Conclusion

Thank you for efforts to comply with applicable local and State regulatory

requirements. If you have any questions or would like additional information,

please contact me at (510) 670-6437 [email protected].

Respectfully,

James Gilford, Director

C: William Fleischaker, Alameda County Counsel

leth Hendrickson, Office of Mine Reclamation

Patrick Mitchell, Downer Brand Attorneys, LLP

Carol Mahoney, Zone 7 Water Agency

Colleen Winey, Zone 7 Water Agency

Kevin Colin, Lamphier-Gregory