HomeMy WebLinkAbout2020-042 - Adopting the Mitigated Negative Declaration and Mitigationjmf 4/30/20
RESOLUTION NO.2020-042
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
SANTA ANA ADOPTING THE MITIGATED NEGATIVE
DECLARATION AND MITIGATION MONITORING AND
REPORTING PROGRAM FOR THE WELL NO. 32
REHABILITATION PROJECT
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF SANTA ANA AS
FOLLOWS:
Section 1. The City Council of the City of Santa Ana hereby finds, determines
and declares as follows:
A. The City is proposing to rehabilitate its Well No. 32 by removing the existing
pump and installing a new one with a variable frequency drive to pump well
water ("Proposed Project"). Well No. 32 has been inactive for over nine years
due to low operating efficiency and elevated nitrate levels.
B. The Proposed Project includes construction of approximately 3,250 linear feet
of new pipeline to pump the well water to the existing John Garthe Reservoir.
The Proposed Project also includes a new above -ground well building with an
electrical room and a separate chemical facility building for on -site generation
of sodium hypochlorite to disinfect well production waters. Appurtenant
features include demolition of underground facilities, site improvements, and
landscaping.
C. The City intends to re -commission Well No. 32 for service. Well No. 32 will be
incorporated into the City's existing Nitrate Blending Plan. Water from Well No.
32 will be pumped to the John Garthe Reservoir site. At that site, the City
blends low nitrate water from Well Nos. 36 and 39 (both located at the reservoir
site) with higher nitrate water from Well Nos. 18 and 24, and once reinstated,
Well No. 32.
D. By reinstating Well No. 32, the City can more effectively improve its water
supply reliability and help ease the burden on other water production
distribution facilities.
E. Construction is anticipated to begin in 2020 and continue for approximately 14
months. Once operational, the potential production capacity of rehabilitated
Well No. 32 is expected to range from 2,000 to as much as 2,500 gallons per
minute.
Resolution No. 2020-042
Page 1 of 5
F. The Proposed Project is required to undergo an environmental review pursuant
to the California Environmental Quality Act (CEQA) and the state CEQA
Guidelines. Through its consultant, the City prepared an Initial Study/Mitigated
Negative Declaration ("IS/MND") for the Proposed Project. There was no
potential for adverse impacts on agricultural and forest resources, land use
planning, or mineral resources associated with the Proposed Project. Potential
adverse impacts resulting from the Proposed Project were found to be less than
significant in the following areas: aesthetics, energy, greenhouse gas
emissions, hazards and hazardous materials, hydrology and water quality,
population and housing, public services, recreation, transportation, utilities and
service systems, and wildfire. Full implementation of the proposed mitigation
measures included in the IS/MND would reduce potential project -related
adverse impact on air quality, biological resources, cultural resources, geology
and soils, noise, and tribal cultural resources to a less than significant level.
G. In accordance with California Pubic Resources Code section 21091 and State
CEQA Guidelines Section 15073, the Initial Study/Mitigated Negative
Declaration for the Proposed Project was circulated for a 30-day public review
and comment period from October 24, 2019 to November 22, 2019. Public
comments were received and have been incorporated as part of the Final Initial
Study/Mitigated Negative Declaration ("Final IS/MND") and are incorporated
herein by reference.
H. The mitigation measures set forth in the Mitigated Negative Declaration are
fully enforceable and will be implemented using the related Mitigation
Monitoring and Reporting Program accompanying the Final IS/MND in order to
avoid or minimize adverse environmental impacts identified therein.
On May 19, 2020, the City Council of the City of Santa Ana held a duly noticed
public hearing to consider all testimony, written and oral, related to the Final
IS/MND and the related Mitigation Monitoring and Reporting Program for the
Proposed Project, at which time all persons wishing to testify were heard, the
project was fully considered, and all other legal prerequisites to the adoption of
this Resolution occurred.
Section 2. The City Council has independently reviewed and analyzed the
information contained in the Final Initial Study/Mitigated Negative Declaration prepared
for the Proposed Project, The City Council has, as a result of its consideration and the
evidence presented at the hearing on this matter, determined that, as required pursuant
to the California Environmental Quality Act and the State CEQA Guidelines, the Final
IS/MND adequately addresses the expected environmental impacts of the Proposed
Project. On the basis of this review, the City Council finds that there is no substantial
evidence from which it can be fairly argued that the Proposed Project will have a
significant impact on the environment.
Resolution No. 2020-042
Page 2 of 5
Section 3. The City Council hereby adopts the Final IS/MND and the related
Mitigation Monitoring and Reporting Program, a copy of which is attached as Exhibit A,
and directs that a Notice of Determination be prepared and filed with the Clerk of the
County of Orange in the manner required by law. This decision is based upon the
evidence submitted at the above said hearing, including but not limited to: the Request
for Council Action dated May 19, 2020, and exhibits attached hereto, and any public
testimony, written and oral, all of which are incorporated herein by this reference. The
Final IS/MND is available for viewing at the City's Public Works Agency at 20 Civic Center
Plaza, Santa Ana, CA 92702.
Section 4. Pursuant to Title XIV, California Code of Regulations, section
753.5(c)(1), the City Council has determined that, after considering the record as a whole,
there is no evidence that the Proposed Project will have the potential for any significant
adverse effect on fish and wildlife. However, the payment of Fish and Game Department
filing fees in conjunction with this project is at the ultimate determination of the California
Department of Fish and Wildlife.
Section 5. This Resolution shall take effect immediately upon its adoption by
the City Council, and the Clerk of the Council shall attest to and certify the vote adopting
this Resolution.
ADOPTED this 19th day of May, 2020.
Mayor
APPROVED AS TO FORM:
Sonia R. Carvalho, City Attorney
By:
(John M. Funk
Assistant City Attorney
Resolution No. 2020-042
Page 3 of 5
AYES: Councilmembers Bacerra, Penaloza, Sarmiento, Solorio, Villegas
(5)
NOES: Councilmembers None (0)
ABSTAIN: Councilmembers None (0)
NOT PRESENT: Councilmembers Iglesias, Pulido (2)
CERTIFICATE OF ATTESTATION AND ORIGINALITY
I, DAISY GOMEZ, Clerk of the Council do hereby attest to and certify the attached
Resolution No 2020-042 to be the original resolution adopted by the City Council of the
City of Santa Ana on May 19, 2020.
Date 5 -22'Zo7-0
Daisy Gomez `
Clerk of the Council
City of Santa Ana
Resolution No. 2020-042
Page 4 of 5
EXHIBIT A
Resolution No. 2020-042
Page 5 of 5
EXHIBIT
Final
Initial Study/Mitigated Negative Declaration
Prepared for:
City of Santa Ana
Public Works Agency
220 S. Daisy Avenue
Santa Ana, California 92703
Contact: Armando Fernandez
Senior Civil Engineer, P.E.
714.647.3316
Prepared by:
Tetra Tech, Inc.
17885 Von Karman Avenue, Suite 500
Irvine, California 92614-6213
Contact: Paula Fell
Environmental Task Manager
949.809.5147
December 2019
City of Santa Ana Well No.32 Rehabilitation Project
Final Initial Studv/Mitigated Neqative Declaration
TABLE OF CONTENTS
1.0 INTRODUCTION .................................... ................. ..................................................... 1-1
1.1 INITIAL STUDY/MITIGATED NEGATIVE DECLARATION PUBLIC
REVIEW...........................................................................................................1-1
1.2 AVAILABILITY OF INITIAL STUDY/MITIGATED NEGATIVE
DECLARATION................................................................................................1-1
1.3 PROJECT DESCRIPTION ................ ................................................................ 1-1
1.4 FINAL INITIAL STUDY/MITIGATED NEGATIVE DECLARATION ....................1-2
2.0 RESPONSE TO COMMENTS ................................................ ...................................... 2-1
2.1 OVERVIEW......................................................................................................2-1
2.2 LIST OF COMMENTERS..................................................................................2-1
2.3 COMMENTS AND RESPONSE TO COMMENT...............................................2-1
2.3.1 Comment Letter No. 1...........................................................................2-1
3.0 CLARIFICATIONS AND MODIFICATIONSTO THE IS/MND........................................3-1
4.0 PROJECT IMPACTS AND MITIGATION MEASURES.................................................4-1
4.1 PROJECTIMPACTS........................................................................................4-1
4.2 MITIGATION MEASURES................................................................................4-1
Appendices
Appendix A Comment Letter
Appendix B Mitigation Monitoring and Reporting Plan
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Final Initial Study/Mitigated Negative Declaration
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1.0 INTRODUCTION
1.1 INITIAL STUDY/MITIGATED NEGATIVE DECLARATION PUBLIC REVIEW
In accordance with the California Environmental Quality Act (CEQA) Section 21091 and State
CEQA Guidelines Section 15073, the Initial Study/Mitigated Negative Declaration (IS/MND) for
the Well No. 32 Rehabilitation Project was circulated for a 30-day public review and comment
period from October 24, 2019 to November 22, 2019. The subject of this IS/MND is to
rehabilitate existing Well No. 32 located at Morrison Park in the City of Santa Ana, and the
construction of approximately 3,250 linear feet of new pipeline to pump the well water to the
existing John Garthe Reservoir.
1.2 AVAILABILITY OF INITIAL STUDY/MITIGATED NEGATIVE DECLARATION
The draft IS/MND was available for review at the following locations:
City of Santa Ana, Public Works Agency, 220 S. Daisy Avenue, Santa Ana, CA
92703
• Santa Ana Public Library, 26 Civic Center Plaza Santa Ana, CA 92701
1.3 PROJECT DESCRIPTION
Project Location
The proposed City of Santa Ana Well No. 32 Rehabilitation Project ("Project") site is located in
the City of Santa Ana, in the central portion of Orange County (County), within Township 4
South, Range 10 West (unsectioned), Township 5 South, Range 10 West, Section 1, on the
Anaheim, California, U.S. Geological Survey 7.5-minute Quadrangle Map (1977). Well No. 32 is
located at 2801 North Westwood Avenue in the southwest corner of Morrison Park. A new
proposed pipeline will connect the well to the existing John Garthe Reservoir traversing North
Westwood Avenue to West Memory Lane to North Bristol Street.
Project Description
The City of Santa Ana (City) is proposing to rehabilitate existing Well No. 32 by removing the
existing pump and installing a new one with a variable frequency drive to pump well water. The
Project includes construction of approximately 3,250 linear feet of new pipeline to pump the well
water to the existing John Garthe Reservoir. The project also includes a new above ground well
building with an electrical room and a separate chemical facility building for on -site generation of
sodium hypochlorite to disinfect well production waters. Appurtenant features include demolition
of underground facilities, site improvements and landscaping.
The City encompasses 27.5 square miles and has a population of over 325,000 people. The
City operates a water distribution system which includes more than 450 miles of water mains
and over 44,000 water services. The City's potable water is obtained by using a combination of
pumping from the Orange County Groundwater Basin using 21 existing groundwater wells and
importing water via seven (7) Metropolitan Water District pipeline connections. The City has
some wells that produce groundwater with elevated nitrate levels. The City has developed a
Nitrate Blending Plan that mixes the high nitrate groundwater with low nitrate groundwater. One
of the high nitrate wells is Well No. 32 and it has been inactive for over nine (9) years due to low
operating efficiencies and high nitrate levels.
It is the City's goal to rehabilitate Well No. 32 and re -commission the well for service. Instead of
treating the high nitrates at the well site and impacting Morrison Park, the City intends to
incorporate Well No. 32 into its existing Nitrate Blending Plan. Water from Well No. 32 will be
pumped to the John Garthe Reservoir site. At the John Garthe Reservoir site, the City blends
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City of Santa Ana Well No.32 Rehabilitation Project
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low nitrate water from Well Nos. 36 and 39 (both located at the reservoir site) with higher nitrate
water from Well Nos. 18 and 24 and once reinstated, Well No. 32. By reinstating Well No. 32,
the City can more effectively improve its water supply reliability and help ease the burden on the
other water production distribution facilities.
The disturbed surface area for the rehabilitation of Well No. 32 and construction of the
associated pipeline is approximately 0.278 acres. Construction is anticipated to begin in the first
quarter of 2020 and continue for approximately 14 months. Once operational, the potential
production capacity of rehabilitated Well No. 32 is expected to range from 2,000 to as much as
2,500 gallons per minute.
1.4 FINAL INITIAL STUDY/MITIGATED NEGATIVE DECLARATION
The final IS/MND consists of:
• The draft IS/MND, which is incorporated into this final IS/MND by reference
• Public comments received during the public review period, see Section 2 and Appendix A
• Response to the public comments, see Section 2
• Clarifications and modifications to the draft IS/MND, see Section 3
• Project Impacts and Mitigation Measures, see Section 4
• The Mitigation Monitoring and Reporting Plan, see Appendix B
These contents constitute the final IS/MND, to be presented to the City of Santa Ana City
Council for certification and approval.
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2.0 RESPONSE TO COMMENTS
2.1 OVERVIEW
During this public review period a total of one comment letter was received. None of the
comments received during the comment period provide any basis to identify any new significant
impacts or "significant new information' that would require recirculation of the IS/MND or
preparation of an Environmental Impact Report.
Although a lead agency is not required to provide written responses to comments on negative
declarations or MNDs under the CEQA, the City of Santa Ana Well No.32 Rehabilitation Project
has evaluated the comments received on the Well No. 32 Rehabilitation Project IS/MND, and
has elected to provide response to comments, as well as clarifications to the IS/MND.
2.2 LIST OF COMMENTERS
The following representative of an organization submitted written comments on the draft
IS/MND:
1. Richard Vuong, Manager, Planning Division, OC Public Works Service Area/OC
Development Services
2.3 COMMENTS AND RESPONSE TO COMMENT
This section excerpts those comments received that specifically pertain to the scope and
content of the draft IS/MND. A copy of the comment letter is included in Appendix A.
2.3.1 Comment Letter No. 1
Richard Vuong, Manager, Planning Division, OC Public Works Service Area/OC
Development Services
Comment 1-1
As stated in the Draft Initial Study/Mitigated Negative Declaration, the proposed 12" water
pipeline will cross over the Santiago Creek Channel (OCFCD Facility No. E08). Please be
advised that any work that occurs in or upon the OCFCD right-of-way or flood control facilities
shall be conducted so as not to adversely impact channel's structural integrity, hydrology,
hydraulic flow conditions, access, maintainability and future channel improvements.
Response to Comment 1-1
The proposed Project will not directly involve the Orange County Flood Control District [OCFCD]
flood control facilities. The proposed Project Pipeline will cross over Santiago Creek Channel
(OCFCD Facility No. E08) within a bay opening beneath the Bristol Street Bridge (replacing an
existing pipeline of the same size) and will not adversely impact channel's structural integrity,
hydrology, hydraulic flow conditions, access, maintainability and future channel improvements.
Comment 1-2
Furthermore, all proposed projects within OCFCD right-of-way should be reviewed and
approved by OC Public Works where the work would be conducted only after an encroachment
permit has been obtained. For information regarding the permit application process and other
details, please refer to the Encroachment Permits Section link on the OC Public Works
website: htti)://www.ocpublicworks.com/ds/permits/encroachment permits. Technical reviews
and approvals for the proposed work will be accomplished within the permit process.
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Response to Comment 1-2
An encroachment permit for this project will be applied for with OC Public Works. Discussion of
this permit will be added to the section discussing the permits and/or approval required from
other public agencies. See Section 3 for modification to the IS/MND.
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3.0 CLARIFICATIONS AND MODIFICATIONSTO THE IS/MND
The following clarifications and modifications are intended to update the draft IS/MND in
response to the comments received during the public review period. These modifications clarify,
amplify, or make insignificant changes to the IS/MND. Revisions to the IS/MND have not
resulted in new significant impacts or mitigation measures or increased the severity of an
impact. None of the criteria for recirculation set forth in the CEQA Guidelines section 15088(a)
have been met, and recirculation of the IS/MND or preparation of an Environmental Impact
Report is not required.
The changes to the draft IS/MND are listed by section and page number. Text which has been
removed is shown in this chapter with a strikethrough line, while text that has been added is
shown with bold and italics.
Section 2.3 Other Public Agencies Whose Approval Is Required
Page Clarification/Revision
2-9 Other public agencies whose approval is expected to be required in the form of
permits, financing approval, or participation agreements are as follows:
• Santa Ana Regional Water Quality Control Board National Pollutant
Discharge Elimination System (NPDES) Permit for well rehabilitation; Storm
Water Pollution Prevention Plan for construction activities and development
discharge;
• Orange County Flood Control District — Discharge Permit;
• Orange County Fire Authority — Planning and Development Fire Service
Permit;
• Orange County Public Works Agency— Encroachment Permit;
• City of Santa Ana, Department of Public Works — Encroachment Permit;
• City of Santa Ana, Department of Planning and Building — Building, Electrical,
Plumbing, Mechanical, Grading, and Police Permits;
• City of Santa Ana, Department of Parks and Recreation — Planning and
Development Fire Service Permit; and
• City of Costa Mesa — Encroachment Permit.
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4.0 PROJECT IMPACTS AND MITIGATION MEASURES
4.1 PROJECT IMPACTS
An IS has been prepared to assess the Proposed Project's potential impacts on the
environment and the significance of those impacts and is incorporated in the MND. Based on
this IS, it has been determined that the Proposed Project would not have any significant impacts
on the environment, once all proposed mitigation measures have been implemented. This
conclusion is supported by the following findings:
• There was no potential for adverse impacts on agricultural and forest resources, land
use planning, or mineral resources associated with the Proposed Project.
• Potential adverse impacts resulting from the Proposed Project were found to be less
than significant in the following areas: aesthetics, energy, greenhouse gas emissions,
hazards and hazardous materials, hydrology and water quality, population and housing,
public services, recreation, transportation, utilities and service systems, and wildfire.
Full implementation of the proposed mitigation measures included in this MND would
reduce potential project -related adverse impact on air quality, biological resources,
cultural resources, geology and soils, noise, and tribal cultural resources to a less than
significant level.
4.2 MITIGATION MEASURES
The following mitigation measures have been incorporated into the scope of work for the
Proposed Project and will be fully implemented by the City to avoid or minimize adverse
environmental impacts identified in this IS/MND. These mitigation measures will be included in
the Mitigation Monitoring and Reporting Plan prepared for this Project (see Appendix B).
Mitigation Measures:
AIR-1: The Project will be required to comply with regional rules that assist in reducing air
pollutant emissions. South Coast Air Quality Management District (SCAQMD) Rule 403 requires
that fugitive dust be controlled with best available control measures so that the presence of such
dust does not remain visible in the atmosphere beyond the property line of the emission source.
In addition, SCAQMD Rule 402 requires implementing dust suppression techniques to prevent
fugitive dust from creating a nuisance off site. Implementing these dust suppression techniques
will reduce the fugitive dust generation (and thus PM1c and PM2.e). Compliance with these rules
will reduce impacts on nearby sensitive receptors. Standard requirements and Best
Management Practices include the following:
• Equipment/vehicles shall not be left idling for periods in excess of five minutes.
• Engines shall be maintained in good working order to reduce emissions.
• Onsite electrical power connections shall be made available where feasible.
• Low -sulfur diesel fuel shall be utilized.
• Electric and gasoline powered equipment shall be substituted for diesel powered
equipment where feasible.
• Exposed soils and haul roads shall be watered up to three times per day to reduce
fugitive dust during grading/construction activities, if necessary.
• Street sweeping shall be conducted when visible soil accumulations occur along site
access roadways to remove dirt dropped by construction vehicles.
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City of Santa Ana Well No.32 Rehabilitation Project
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• Site access driveways and adjacent streets shall be washed daily, if there are visible
signs of any dirt track -out at the conclusion of any workday.
• Construction vehicle tires shall be cleaned prior to leaving the Project site.
• All trucks hauling dirt away from the site shall be covered, and speeds on unpaved
roads shall be reduced below 15 miles per hour.
• During high wind conditions (i.e., sustained wind speeds exceeding 20 miles per
hour), areas with disturbed soil shall be watered hourly and activities on unpaved
surfaces shall cease until wind speeds no longer exceed 20 miles per hour.
• Storage piles that are to be left in place for more than three working days shall either
be sprayed with a non -toxic soil binder, covered with plastic or revegetated.
13I0-1: Nesting Birds — Project activities that will remove or disturb potential nest sites will be
scheduled outside the breeding bird season. The breeding bird nesting season typically extends
from February 15 through September 15.
If Project activities cannot be avoided during February 15 through September 15, a qualified
biologist will conduct a pre -construction breeding bird survey for breeding birds and active nests
or potential nesting sites within the limits of Project disturbance. The survey will be conducted at
least seven days prior to the onset of scheduled activities, such as mobilization and staging. It
will end no more than three days prior to vegetation, substrate, and structure removal and/or
disturbance.
If no breeding birds or active nests are observed during the pre -construction survey or they are
observed and will not be impacted, Project activities may begin, and no further mitigation will be
required.
If a breeding bird territory or an active bird nest is located during the pre -construction survey
and will potentially be impacted, the site will be mapped on engineering drawings and a no -
activity buffer zone will be marked (fencing, stakes, flagging, orange snow fencing, etc.) a
minimum of 100 feet in all directions or 500 feet in all directions for listed bird species and all
raptors. The biologist will determine the appropriate buffer size based on the type of activities
planned near the nest and the type of bird that created the nest. Some bird species are more
tolerant than others of noise and activities occurring near their nest. This no -activity buffer zone
will not be disturbed until a qualified biologist has determined that the nest is inactive, the young
have fledged, the young are no longer being fed by the parents, the young have left the area, or
the young will no longer be impacted by Project activities. Periodic monitoring by a biologist will
be performed to determine when nesting is complete. Once the nesting cycle has finished,
Project activities may begin within the buffer zone.
If listed bird species are observed within the Project site during the pre -construction survey, the
biologist will immediately map the area and notify the appropriate resource agency to determine
suitable protection measures and/or mitigation measures and to determine if additional surveys
or focused protocol surveys are necessary. Project activities may begin within the area only
when concurrence is received from the appropriate resource agency.
Birds or their active nests will not be disturbed, captured, handled or moved. Active nests
cannot be removed or disturbed; however, nests can be removed or disturbed if determined
inactive by a qualified biologist.
CUL-1: Environmental Training — prior to construction of the Project, a qualified archaeologist
will provide a cultural resource briefing that includes all applicable laws and penalties pertaining
to disturbing cultural resources, a brief discussion of the prehistoric and historic regional context
and archaeological sensitivity of the area, types of cultural resources found in the area,
instruction that Project workers will halt construction if a cultural resource is inadvertently
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discovered during construction, and procedures to follow in the event an inadvertent discovery
(Inadvertent Discovery Plan) is encountered, including appropriate treatment and respectful
behavior of a discovery (e.g., no posting to social media or photographs). If requested, a local
tribal representative(s) shall be invited to participate in the environmental training to discuss or
provide text from a tribal cultural perspective regarding the cultural resources within the region.
CUL 2: Archaeological Monitoring — The implementing agency shall retain a qualified
archaeological monitor during ground disturbing activities within native soils (below the fill level)
that have the potential to impact significant archaeological resources, as determined by a
qualified archaeologist in consultation with the implementing agency, and any local Native
American representatives expressing interest in the Project.
CUL 3: Inadvertent Discovery of Archaeological Resources During Construction — A qualified
archaeologist shall prepare an Inadvertent Discovery Plan for the Project. During Project -level
construction, should subsurface archaeological resources be discovered, all activity in the
vicinity of the find shall stop and a qualified archaeologist shall be contacted to assess the
significance of the find according to CEQA Guidelines Section 15064.5. If any find is determined
to be significant, the archaeologist shall determine, in consultation with the implementing
agency and any local Native American groups expressing interest, appropriate avoidance
measures or other appropriate mitigation. Per CEQA Guidelines Section 15126.4(b)(3),
preservation in place shall be the preferred means to avoid impacts to archaeological resources
qualifying as historical resources. Methods of avoidance may include, but shall not be limited to,
Project re-route or re -design, Project cancellation, or identification of protection measures such
as capping or fencing. Consistent with CEQA Guidelines Section 15126.4(b)(3)(C), if it is
demonstrated that resources cannot be avoided, the qualified archaeologist shall develop
additional treatment measures, such as data recovery or other appropriate measures, in
consultation with the implementing agency and any local Native American representatives
expressing interest in prehistoric or tribal resources. If an archaeological site does not qualify as
an historical resource but meets the criteria for a unique archaeological resource as defined in
Section 21083.2, then the site shall be treated in accordance with the provisions of Section
21083.2.
GEO-1: Inadvertent Discoveries of Paleontological Resources — If the construction staff or
others observe previously unidentified paleontological resources during ground disturbing
activities, they will halt work within a 200-foot radius of the find(s), delineate the area of the find
with flagging tape or rope (may also include dirt spoils from the find area), and immediately
notify a qualified paleontologist. Construction will halt within the flagged or roped -off area. The
paleontologist will assess the resource as soon as possible and determine appropriate next
steps in coordination with the City. Such finds will be formally recorded and evaluated. The
resource will be protected from further disturbance or looting pending evaluation.
NOISE-1: Construction noise levels shall fluctuate depending on the construction phase,
equipment type and duration of use, distance between noise source and sensitive receptor, and
the presence or absence of barriers between noise source and receptors. Therefore, the Project
applicant should require construction contractors to limit standard construction activities as
follows:
• Equipment and trucks used for Project construction shall utilize the best available
noise control techniques (e.g., improved mufflers, equipment redesign, use of intake
silencers, ducts, engine enclosures and acoustically -attenuating shields or shrouds,
wherever feasible).
• Stationary noise sources shall be located as far from adjacent receptors as possible
and shall be muffled and enclosed within temporary sheds, incorporate insulation
barriers or other measures to the extent feasible.
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• Impact tools (e.g., jack hammers, pavement breakers, and rock drills) used for
Project construction shall be hydraulically or electrically powered wherever possible
to avoid noise associated with compressed air exhaust from pneumatically -powered
tools. However, where use of pneumatically powered tools is unavoidable, an
exhaust muffler on the compressed air exhaust shall be used; this muffler can lower
noise levels from the exhaust by up to about 10 dBA. External jackets on the tools
themselves shall be used where feasible, and this could achieve a reduction of
5 dBA. Quieter procedures shall be used such as drilling rather that impact
equipment whenever feasible.
• No extreme noise generating activities (greater than 90 dBA) shall be allowed on
Saturdays, with no exceptions.
• No construction activity shall take place on Sundays or Federal holidays.
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APPENDIX A
COMMENT LETTER
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EI
December2019
Public'Works
Integrity, Accountability, Service, Trust
Shane L. Silsby, Director
November 20, 2019
Armando Fernandez, Senior Civil Engineer
City of Santa Ana
Public Works Agency
220 S. Daisy Avenue
Santa Ana, California 92702
NCL-19-037
Subject: Proposed Mitigated Negative Declaration and Notice of Intent to Adopt the Proposed Mitigated
Negative Declaration on City of Santa Ana Well No. 32 Rehabilitation Project
Dear Mr. Fernandez,
Thank you for the opportunity to comment on the Proposed Mitigated Negative Declaration and Notice
of Intent to Adopt the Proposed Mitigated Negative Declaration on City of Santa Ana Well No. 32
Rehabilitation Project.
The County of Orange offers the following comments for your consideration.
OC Infrastructure Programs/Flood Programs/Hydrology
As stated in the Draft Initial Study/Mitigated Negative Declaration, the proposed 12'
water pipeline will cross over the Santiago Creek Channel (OCFCD Facility No. E08).
Please be advised that any work that occurs in or upon the OCFCD right-of-way or flood
control facilities shall be conducted so as not to adversely impact channel's structural
integrity, hydrology, hydraulic flow conditions, access, maintainability and future
channel improvements. Furthermore, all proposed projects within OCFCD right-of-way
should be reviewed and approved by OC Public Works where the work would be
conducted only after an encroachment permit has been obtained. For information
regarding the permit application process and other details, please refer to the
Encroachment Permits Section link on the OC Public Works website:
http://www.ocpublicworks.comldslpermits/encroachment permits. Technical reviews
and approvals for the proposed work will be accomplished within the permit process.
If you have any questions regarding these comments, please contact Sahar Parsi at (714) 647-
3988.
-- www.ocpublieworks.com
601 N. Ross Street, Santa Ana, CA 92701
714.667.8800 1 Info@OCPW.ocgov.com
P.O. Box 4048, Santa Ana, CA 92702-4048
Sin;22—
Richard Vuong, Manager, Planning Division
OC Public Works Service Area/OC Development Services
601 N. Ross Street
Santa Ana, California 92701
Richard_Vuon ocpw.ocaov com
cc:
Sahar Parsi, CC Flood Programs/Hydrology & Floodplain Management
Penny Lew, CC Flood Programs/Hydrology & Floodplain Management
601 N. Ross Street, Santa Ana, CA 92701
P.O. Box 4048, Santa Ana, CA 92702-4048
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City of Santa Ana Well No.32 Rehabilitation
Final Initial Study/Mitigated Negative Dec
APPENDIX B
MITIGATION MONITORING AND REPORTING PLAN
December 2019
LJ
City of Santa Ana Well No.32 Rehabilitation Project
Final Initial Study/Mitigated Negative Declaration
This page intentionally left blank
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December 2019
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