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HomeMy WebLinkAbout75A - PH ADOPT RESO FOR WELL 32 IMPROVEMENTSREQUEST FOR COUNCIL ACTION CITY COUNCIL MEETING DATE: MAY 19, 2020 TITLE: PUBLIC HEARING: ADOPT A RESOLUTION APPROVING A MITIGATED NEGATIVE DECLARATION, AND THE MITIGATION MONITORING AND REPORTING PROGRAM FOR WELL 32 IMPROVEMENTS (NON -GENERAL FUND) /s/ Kristine CITY MANAGER CLERK OF COUNCIL USE ONLY: ❑ As Recommended ❑ As Amended ❑ Ordinance on 1s' Reading ❑ Ordinance on 2nd Reading ❑ Implementing Resolution ❑ Set Public Hearing For_ CONTINUED TO 1�1��►1�1�1:7q:7 RECOMMENDED ACTION Adopt a resolution approving a Mitigated Negative Declaration and Mitigation Monitoring and Reporting Program. DISCUSSION Well 32, located in Morrison Park, is within the well cluster feeding the Garthe Pump Station that serves as the primary water source for the north and west parts of the city. For the last twelve years, the well has been inactive due to high nitrate levels. The City is proposing to rehabilitate Well 32, replace the existing well pump and construct an above -ground well building, a water disinfection building, and approximately 3,250 feet of new pipeline. The water from the rehabilitated Well 32 will then be pumped to the John Garthe Reservoir site for additional treatment. These improvements will greatly alleviate stress on our current well infrastructure and improve the water quality within the top layer of the water aquifer. The City entered into an agreement on June 20, 2017 with Tetra Tech Inc. for engineering design, and environmental preparation and process compliance pursuant to the California Environmental Quality Act (CEQA). In accordance with CEQA, an Initial Study and Mitigated Negative Declaration (IS/MND) was prepared for this project (Exhibit 1) along with a Mitigation Monitoring and Reporting Program (Exhibit 2), both of which must be approved and adopted by the City Council (Exhibit 3) in order to move forward with the rehabilitation of Well 32. STRATEGIC PLAN ALIGNMENT Approval of this item supports the City's efforts to meet Goal #6 - Community Facilities & Infrastructure, Objective #1 (establish and maintain a Community Investment Plan for all City assets), Strategy C (invest resources and technology to extend the service life of existing infrastructure to protect the City's investment and support a high quality of life standard). 75A-1 Adopt Resolution to Approve Mitigated Negative Declaration for Well 32 Improvements May 19, 2020 Page 2 ENVIRONMENTAL IMPACT In accordance with CEQA, the recommended action has been reviewed through an Initial Study/Mitigated Negative Declaration. Sections 15070 through 15075 of the State CEQA Guidelines (Article 6) guide the process for the preparation of a mitigated negative declaration. The MND prepared for this project contains a project description, project location map and findings that the project, with mitigation, will not have a significant effect on the environment. The City provided public notice of the public comment period that began on October 24, 2019 and ended on November 22, 2019. The IS/MND was also distributed to all interested or required parties listed on the City's distribution list. One public comment was received. The comment received during the comment period did not provide a basis to identify any new significant impacts or "significant new information" that would require recirculation of the IS/MND. The Mitigated Negative Declaration and Mitigation Monitoring and Reporting Program are on file in the Clerk of the Council office. FISCAL IMPACT There is no fiscal impact associated with this action. NS/CB/RR Exhibits: 1. Initial Study/Mitigated Negative Declaration 2. Mitigation Monitoring and Reporting Program 3. Resolution 75A-2 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 75A-3 75A-4 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration TABLE OF CONTENTS 1.0 INTRODUCTION........................................................................................ 1.1 INITIAL STUDY/MITIGATED NEGATIVE DECLARATION PUBLIC REVIEW......................................................................................... 1.2 AVAILABILITY OF INITIAL STUDY/MITIGATED NEGATIVE DECLARATION.............................................................................. 1.3 PROJECT DESCRIPTION.............................................................. 1.4 FINAL INITIAL STUDY/MITIGATED NEGATIVE DECLARATION.. 2.0 RESPONSE TO COMMENTS ....................................... 2.1 OVERVIEW....................................................... 2.2 LIST OF COMMENTERS ................................... 2.3 COMMENTS AND RESPONSE TO COMMENT 2.3.1 Comment Letter No. 1 ............................ 3.0 CLARIFICATIONS AND MODIFICATIONSTO THE IS/MND.... 4.0 PROJECT IMPACTS AND MITIGATION MEASURES 4.1 PROJECTIMPACTS....................................... 4.2 MITIGATION MEASURES ............................... Appendices Appendix A Comment Letter Appendix B Mitigation Monitoring and Reporting Plan December 2019 Page 75A-5 .1-2 .2-1 .2-1 .2-1 .2-1 .2-1 .3-1 .4-1 .4-1 .4-1 D City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank a Page ii 75A-6 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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 December 2019 Page 1-1 75A-7 N City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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. a Page 1-2 75A-8 December 2019 2.0 RESPONSE TO COMMENTS 2.1 OVERVIEW During this public review period a total of of comments received during the comment period impacts or "significant new information" that preparation of an Environmental Impact Report. City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration ie comment letter was received. None of the provide any basis to identify any new significant would require recirculation of the IS/MND or Although a lead agency is not required to provide written responses to comments on negative declarations or MNDs under the CEOA, 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 I S/MND: 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 [OCFCDj 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: http://www.ocpublicworks.com/ds/permits/encroachment permits. Technical reviews and approvals for the proposed work will be accomplished within the permit process. December 2019 Page 2-1 75A-9 N City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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. Page 2-2 75A-10 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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. December 2019 Page 3-1 75A-11 N City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank Page 3-2 75A-12 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 4.0 PROJECT IMPACTS AND MITIGATION MEASURES 4.1 PROJECTIMPACTS 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 forthis 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 PM10 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. December 2019 Page 4-1 75A-13 N City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration • 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 Page 4-2 75A-14 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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-clesign, 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. December 2019 Page 4-3 75A-15 N City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration • 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. Page 4A 75A-16 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration APPENDIX A COMMENT LETTER December 2019 75A-17 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank a December 2019 75A-18 l ficWor S Integrity, Accountability, Service, Trust Shane L. Silsby, Director November 20, 2019 NCL-19-037 Armando Fernandez, Senior Civil Engineer City of Santa Ana Public Works Agency 220 S. Daisy Avenue Santa Ana, California 92702 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.com/ds/permits/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. 601 N. Ross Street, Santa Ana, CA 92701 P.O. Box 4048, Santa Ana, CA 92702-4048 www.acpubhcworks.conr 714.667,8800 I Info@OCP W.ocgov.00m 75A-19 Sincerely, Ric and Vuong, Manager, Planning Division OC Public Works Service Area/OC Development Services 601 N. Ross Street Santa Ana, California 92701 R ichard.Vuonapocow.ocgov.com cc: Sahar Parsi, OC Flood Programs/Hydrology & Floodplain Management Penny Lew, OC Flood Programs/Hydrology & Floodplain Management 601 N. Ross Street, Santa Ana, CA 92701 P.O. Box 4048, Santa Ana, CA 92702-4048 www.ocpublicworks.wrn 714.667.8800 1 Info@OCPw.00gov.com 75A-20 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration APPENDIX B MITIGATION MONITORING AND REPORTING PLAN a 75A-21 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank a December 2019 75A-22 Z_ H O a W M 0 ( 0 R c rn LL m < � R y 0 o m Z a Y u Q U j cu aNm O U) I- Z O 2 75A-23 Ld a iu C O N C O N 6 O O E _ 3 o E w M L o N N 'T 0) -. c a) O a c c E E a 0) m -po = c a7 a) a) N m n EZyY U _ a7 O O y 0 p O a .- a) a c c m a d _m y C_ Z T 3 T N a7 C Y O C a) O E 0 y c �0 3 a a) a o J prer_ 0 E v E O .0 O Y J V O_ C a) E C E E U E C M U E Of E a) N L 0 0 C a s m W a U a) J J E E E a°)) ° c_ >H a) a) a� m¢aa-p c m O J J mN a1 Y T N 4_ U C N N C a N= L a) c '0 = m E .N E E O E d d y .0 C J U� a 3 m o 0 0 E 0 a� , L U U m 0) C m .-. 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OI L f0 C°L QOf0Uf0N 0 ..oLp`.O WN.O...0 mw C f0 c V d O 0 U L O N L_ r0 N'j U C m C N 'O U .S N W° U C 0 2 p -U O.N 'O EN�OQO'CO 6 0T.0 O,��00.OL N..L.ONNN� fO C m > 0 N Tar ._ N N L f0 u N > N C C O c Y r N oo�m: Em._cc O W L N- N 0 W 00 r '-' f0 L N_ O f0 0 r d O U'w ar'omcw N O C .� p 0 O N N zo-o a-om 75A-35 co c o a w 0 d d c E `0 O CIE 'c — ci c a a E 0 c o g t9 0 a N 0 O t a c F C � o aLLI o 0 z a c Z YO � w aci m vt a Z a E O z O F E-o N N C f0 an d m dam m c O N a O O C a N= N X N d s s O N r r m 3 0 o N O E-O C N N 0 0 U O N L C "a N L N f0 O N U r a> N> L N f0 O Z O O N C K d— d d rS S O a L O) C C O) N U m N o L¢ > 3 N 0 N'O m 3 coa = T m .N U O N O O— E.0o�°��3��=�= w mlc mo N O E' L L a 0 3 U c O s -a C N O ti r O N N N U 0'C m O a N U 7 N d N N N O f0 C 0 N.a ti'U aTr O N N > al N 12 L - N d loll T A C m 2 N N O N w f �o3C 0 �o tE fL odNo m N C�fC0 oUC Np oO�'E O r T O - MOc wE aNd a d E O C� U' ON O dO O K O N — C =c O N N a f0 j2 U U m N- N O U d �nmm.Ew Emt°°�a'�im0--a.E Z0xwi z°0�' 75A-36 jmf 4/30/20 EXHIBIT 3 RESOLUTION NO. 2020-XXX 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. 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 Resolution No. 2020-XXX Page 1 of 3 75A-37 jmf 4/30/20 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. I. 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 projectwas 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. 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 Resolution No. 2020-XXX Page 2 of 3 75A-38 jmf 4/30/20 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 day of , 2020. Miguel A. Pulido Mayor APPROVED AS TO FORM: Sonia R. Carvalho, City Attorney By:, John M. Funk Assistant City Attorney NOES: Councilmembers ABSTAIN: Councilmembers 1►[����:7X.9�����Z.1iR.71I 11iilT-M Is] =I:491 y 197ilM930el11M111lelIIQ kiWi1 ki I exelN M I ae1I kV1 I, DAISY GOMEZ, Clerk of the Council do hereby attest to and certify the attached Resolution No 2020-XXX to be the original resolution adopted by the City Council of the City of Santa Ana on Date Clerk of the Council City of Santa Ana Resolution No. 2020-XXX Page 3 of 3 75A-39 II:11r_lk 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 75A-40 75A-41 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative 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 PROJECT IMPACTS........................................................................................4-1 4.2 MITIGATION MEASURES................................................................................4-1 Appendices Appendix A Comment Letter Appendix B Mitigation Monitoring and Reporting Plan December 2019 7 SA142 Q City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank ' 7 frk,ij43 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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 December 2019 7 5A144 Q City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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. D7 %M145 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration I+AIMN*919].&IMEioZdeL�iI �114.III K 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: 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: http://www.ocpublicworks.com/ds/permits/encroachment permits. Technical reviews and approvals for the proposed work will be accomplished within the permit process. December 2019 7 %M246 Q City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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. D7 SM2$7 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration &311=61III Nly197_rIP kiI-Ti1.III JAIQQIaN1e'll!IP lkF-1klk Ion 1:81;9hUIlk U] 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. December 2019 75A 48 Q City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank 7349 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration EKlm>Y•ll]MESA AIJil2iTel& e1.IIIJAIIII[He1111IIQkiIJ,INEW11*K 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 MIND. 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 MIND 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 PM10 and PM25). 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. December 2019 75A=-50 Q City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration • 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 D7 5A$-51 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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. December 2019 78A4-52 Q City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration 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. D7 %M4-53 December 2019 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration APPENDIX A COMMENT LETTER December 2019 75A-54 Q City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank 75A-55 December 2019 UCPub1icWorks 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.com/ds/permits/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. 601 N. Ross Street, Santa Ana, CA 92701 P.O. Box 4048, Santa Ana, CA 92702-4048 www.ocpublieworks.com 714.667.8800 1 Info@OCPW.ocgov.com 75A-56 Ric and Vuong, Manager, Planning Division OC Public Works Service Area/OC Development Services 601 N. Ross Street Santa Ana, California 92701 Richa rd.Vuone Pocaw.oceov.com cc: Sahar Parsi, OC Flood Programs/Hydrology & Floodplain Management Penny Lew, OC Flood Programs/Hydrology & Floodplain Management 601 N. Ross Street, Santa Ana, CA 92701 P.O. Box 4048, Santa Ana, CA 92702-4048 w ocpublicworks.com 714.667.8800 1 Info@OCPW.00gov.com 75A-57 City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration APPENDIX B MITIGATION MONITORING AND REPORTING PLAN December 2019 75A-58 N City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration This page intentionally left blank 75A-59 December 2019 a c� O w a a z O a W Cl) 0 O � � Q Z O V- Q Q c �M. 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